41 files changed, 26155 insertions, 0 deletions
diff --git a/test/scanners/ruby/1.in.rb b/test/scanners/ruby/1.in.rb
new file mode 100644
index 0000000..ddd5106
--- /dev/null
+++ b/test/scanners/ruby/1.in.rb
@@ -0,0 +1,731 @@
+public :<<
+
+class String
+    def / regex
+        scan(regex).first
+    end
+end
+
+module Bytes
+    KILOBYTE, MEGABYTE, GIGABYTE, TERABYTE, PETABYTE = (1..5).map { |x| 2 ** (10 * x) }
+    FactorOfSuffix = Hash.new(1)
+    constants.each do |c|
+        FactorOfSuffix[c[0,1]] = const_get c
+    end
+   
+    def Bytes.factor_of_suffix suff
+        FactorOfSuffix[suff]
+    end
+   
+    def Bytes.[] str
+        n, fac = str / /(.+)([A-Z])/
+        n = n.to_i
+        fac = factor_of_suffix fac
+        n * fac
+    end
+end
+
+class String
+    def to_bytes
+        Bytes[self]
+    end
+end
+
+p '01K'.to_bytes
+p '%d - %p' % [Bytes.constants.size, self]
+
+p 'abc' / /([ac])/
+
+p 'abc' + /([ac])/
+p 'abc' - /([ac])/
+p 'abc' * /([ac])/
+p 'abc' ** /([ac])/
+p 'abc' % /([ac])/
+p 'abc' ~ /([ac])/
+
+require 'benchmark'
+S = 'bla' * 100 + "\n" + "\t"*4
+T = 200000
+
+Benchmark.bm(1) do |bm|
+    GC.sweep
+    bm.report('?') { T.times { S.index(?\n) } }
+    GC.sweep
+    bm.report('"') { T.times { S.index("\n") } }
+    GC.sweep
+    bm.report('/') { T.times { S.index(/\n/) } }
+    GC.sweep
+end
+
+  def next?()
+    !end?
+  end
+  # Rewinds the generator.
+  def rewind()
+    initialize(nil, &@block) if @index.nonzero?
+
+    self
+  end
+
+a = []
+a << a
+p a  #-> [[...]]
+
+# format.rb: Written by Tadayoshi Funaba 1999-2004
+# $Id: format.rb,v 2.14 2004-11-06 10:58:40+09 tadf Exp $
+
+require 'rational'
+
+class Date
+
+  MONTHS = {
+    'january'  => 1, 'february' => 2, 'march'    => 3, 'april'    => 4,
+    'may'      => 5, 'june'     => 6, 'july'     => 7, 'august'   => 8,
+    'september'=> 9, 'october'  =>10, 'november' =>11, 'december' =>12
+  }
+
+  DAYS = {
+    'sunday'   => 0, 'monday'   => 1, 'tuesday'  => 2, 'wednesday'=> 3,
+    'thursday' => 4, 'friday'   => 5, 'saturday' => 6
+  }
+
+  ABBR_MONTHS = {
+    'jan'      => 1, 'feb'      => 2, 'mar'      => 3, 'apr'      => 4,
+    'may'      => 5, 'jun'      => 6, 'jul'      => 7, 'aug'      => 8,
+    'sep'      => 9, 'oct'      =>10, 'nov'      =>11, 'dec'      =>12
+  }
+
+  ABBR_DAYS = {
+    'sun'      => 0, 'mon'      => 1, 'tue'      => 2, 'wed'      => 3,
+    'thu'      => 4, 'fri'      => 5, 'sat'      => 6
+  }
+
+  ZONES = {
+    'ut'  =>  0*3600, 'gmt' =>  0*3600, 'est' => -5*3600, 'edt' => -4*3600,
+    'cst' => -6*3600, 'cdt' => -5*3600, 'mst' => -7*3600, 'mdt' => -6*3600,
+    'pst' => -8*3600, 'pdt' => -7*3600,
+    'a'   =>  1*3600, 'b'   =>  2*3600, 'c'   =>  3*3600, 'd'   =>  4*3600,
+    'e'   =>  5*3600, 'f'   =>  6*3600, 'g'   =>  7*3600, 'h'   =>  8*3600,
+    'i'   =>  9*3600, 'k'   => 10*3600, 'l'   => 11*3600, 'm'   => 12*3600,
+    'n'   => -1*3600, 'o'   => -2*3600, 'p'   => -3*3600, 'q'   => -4*3600,
+    'r'   => -5*3600, 's'   => -6*3600, 't'   => -7*3600, 'u'   => -8*3600,
+    'v'   => -9*3600, 'w'   =>-10*3600, 'x'   =>-11*3600, 'y'   =>-12*3600,
+    'z'   =>  0*3600,
+    'utc' =>  0*3600, 'wet' =>  0*3600, 'bst' =>  1*3600, 'wat' => -1*3600,
+    'at'  => -2*3600, 'ast' => -4*3600, 'adt' => -3*3600, 'yst' => -9*3600,
+    'ydt' => -8*3600, 'hst' =>-10*3600, 'hdt' => -9*3600, 'cat' =>-10*3600,
+    'ahst'=>-10*3600, 'nt'  =>-11*3600, 'idlw'=>-12*3600, 'cet' =>  1*3600,
+    'met' =>  1*3600, 'mewt'=>  1*3600, 'mest'=>  2*3600, 'mesz'=>  2*3600,
+    'swt' =>  1*3600, 'sst' =>  2*3600, 'fwt' =>  1*3600, 'fst' =>  2*3600,
+    'eet' =>  2*3600, 'bt'  =>  3*3600, 'zp4' =>  4*3600, 'zp5' =>  5*3600,
+    'zp6' =>  6*3600, 'wast'=>  7*3600, 'wadt'=>  8*3600, 'cct' =>  8*3600,
+    'jst' =>  9*3600, 'east'=> 10*3600, 'eadt'=> 11*3600, 'gst' => 10*3600,
+    'nzt' => 12*3600, 'nzst'=> 12*3600, 'nzdt'=> 13*3600, 'idle'=> 12*3600
+  }
+
+  def self.__strptime(str, fmt, elem)
+    fmt.scan(/%[EO]?.|./o) do |c|
+      cc = c.sub(/\A%[EO]?(.)\Z/o, '%\\1')
+      case cc
+      when /\A\s/o
+    str.sub!(/\A[\s\v]+/o, '')
+      when '%A', '%a'
+    return unless str.sub!(/\A([a-z]+)\b/io, '')
+    val = DAYS[$1.downcase] || ABBR_DAYS[$1.downcase]
+    return unless val
+    elem[:wday] = val
+      when '%B', '%b', '%h'
+    return unless str.sub!(/\A([a-z]+)\b/io, '')
+    val = MONTHS[$1.downcase] || ABBR_MONTHS[$1.downcase]
+    return unless val
+    elem[:mon] = val
+      when '%C'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    elem[:cent] = val
+      when '%c'
+    return unless __strptime(str, '%a %b %e %H:%M:%S %Y', elem)
+      when '%D'
+    return unless __strptime(str, '%m/%d/%y', elem)
+      when '%d', '%e'
+    return unless str.sub!(/\A ?(\d+)/o, '')
+    val = $1.to_i
+    return unless (1..31) === val
+    elem[:mday] = val
+      when '%F'
+    return unless __strptime(str, '%Y-%m-%d', elem)
+      when '%G'
+    return unless str.sub!(/\A([-+]?\d+)/o, '')
+    val = $1.to_i
+    elem[:cwyear] = val
+      when '%g'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (0..99) === val
+    elem[:cwyear] = val
+    elem[:cent] ||= if val >= 69 then 19 else 20 end
+      when '%H', '%k'
+    return unless str.sub!(/\A ?(\d+)/o, '')
+    val = $1.to_i
+    return unless (0..24) === val
+    elem[:hour] = val
+      when '%I', '%l'
+    return unless str.sub!(/\A ?(\d+)/o, '')
+    val = $1.to_i
+    return unless (1..12) === val
+    elem[:hour] = val
+      when '%j'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (1..366) === val
+    elem[:yday] = val
+      when '%M'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (0..59) === val
+    elem[:min] = val
+      when '%m'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (1..12) === val
+    elem[:mon] = val
+      when '%n'
+    return unless __strptime(str, ' ', elem)
+      when '%p', '%P'
+    return unless str.sub!(/\A([ap])(?:m\b|\.m\.)/io, '')
+    elem[:merid] = if $1.downcase == 'a' then 0 else 12 end
+      when '%R'
+    return unless __strptime(str, '%H:%M', elem)
+      when '%r'
+    return unless __strptime(str, '%I:%M:%S %p', elem)
+      when '%S'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (0..60) === val
+    elem[:sec] = val
+      when '%s'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    elem[:seconds] = val
+      when '%T'
+    return unless __strptime(str, '%H:%M:%S', elem)
+      when '%t'
+    return unless __strptime(str, ' ', elem)
+      when '%U', '%W'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (0..53) === val
+    elem[if c == '%U' then :wnum0 else :wnum1 end] = val
+      when '%u'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (1..7) === val
+    elem[:cwday] = val
+      when '%V'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (1..53) === val
+    elem[:cweek] = val
+      when '%v'
+    return unless __strptime(str, '%e-%b-%Y', elem)
+      when '%w'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (0..6) === val
+    elem[:wday] = val
+      when '%X'
+    return unless __strptime(str, '%H:%M:%S', elem)
+      when '%x'
+    return unless __strptime(str, '%m/%d/%y', elem)
+      when '%Y'
+    return unless str.sub!(/\A([-+]?\d+)/o, '')
+    val = $1.to_i
+    elem[:year] = val
+      when '%y'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    return unless (0..99) === val
+    elem[:year] = val
+    elem[:cent] ||= if val >= 69 then 19 else 20 end
+      when '%Z', '%z'
+    return unless str.sub!(/\A([-+:a-z0-9]+(?:\s+dst\b)?)/io, '')
+    val = $1
+    elem[:zone] = val
+    offset = zone_to_diff(val)
+    elem[:offset] = offset
+      when '%%'
+    return unless str.sub!(/\A%/o, '')
+      when '%+'
+    return unless __strptime(str, '%a %b %e %H:%M:%S %Z %Y', elem)
+=begin
+      when '%.'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i.to_r / (10**$1.size)
+    elem[:sec_fraction] = val
+=end
+      when '%1'
+    return unless str.sub!(/\A(\d+)/o, '')
+    val = $1.to_i
+    elem[:jd] = val
+      when '%2'
+    return unless __strptime(str, '%Y-%j', elem)
+      when '%3'
+    return unless __strptime(str, '%F', elem)
+      else
+    return unless str.sub!(Regexp.new('\\A' + Regexp.quote(c)), '')
+      end
+    end
+
+    if cent = elem.delete(:cent)
+      if elem[:cwyear]
+    elem[:cwyear] += cent * 100
+      end
+      if elem[:year]
+    elem[:year] += cent * 100
+      end
+    end
+
+    if merid = elem.delete(:merid)
+      if elem[:hour]
+    elem[:hour] %= 12
+    elem[:hour] += merid
+      end
+    end
+
+    str
+  end
+
+  private_class_method :__strptime
+
+  def self._strptime(str, fmt='%F')
+    elem = {}
+    elem if __strptime(str.dup, fmt, elem)
+  end
+
+  PARSE_MONTHPAT = ABBR_MONTHS.keys.join('|')
+  PARSE_DAYPAT   = ABBR_DAYS.  keys.join('|')
+
+  def self._parse(str, comp=false)
+    str = str.dup
+
+    str.gsub!(/[^-+,.\/:0-9a-z]+/ino, ' ')
+
+    # day
+    if str.sub!(/(#{PARSE_DAYPAT})\S*/ino, ' ')
+      wday = ABBR_DAYS[$1.downcase]
+    end
+
+    # time
+    if str.sub!(
+        /(\d+):(\d+)
+         (?:
+           :(\d+)(?:[,.](\d*))?
+         )?
+         (?:
+           \s*
+           ([ap])(?:m\b|\.m\.)
+         )?
+         (?:
+           \s*
+           (
+             [a-z]+(?:\s+dst)?\b
+           |
+             [-+]\d+(?::?\d+)
+           )
+         )?
+        /inox,
+        ' ')
+      hour = $1.to_i
+      min = $2.to_i
+      sec = $3.to_i if $3
+      if $4
+    sec_fraction = $4.to_i.to_r / (10**$4.size)
+      end
+
+      if $5
+    hour %= 12
+    if $5.downcase == 'p'
+      hour += 12
+    end
+      end
+
+      if $6
+    zone = $6
+      end
+    end
+
+    # eu
+    if str.sub!(
+        /(\d+)\S*
+         \s+
+         (#{PARSE_MONTHPAT})\S*
+         (?:
+           \s+
+           (-?\d+)
+         )?
+        /inox,
+        ' ')
+      mday = $1.to_i
+      mon = ABBR_MONTHS[$2.downcase]
+
+      if $3
+    year = $3.to_i
+    if $3.size > 2
+      comp = false
+    end
+      end
+
+    # us
+    elsif str.sub!(
+           /(#{PARSE_MONTHPAT})\S*
+            \s+
+            (\d+)\S*
+            (?:
+              \s+
+              (-?\d+)
+            )?
+           /inox,
+           ' ')
+      mon = ABBR_MONTHS[$1.downcase]
+      mday = $2.to_i
+
+      if $3
+    year = $3.to_i
+    if $3.size > 2
+      comp = false
+    end
+      end
+
+    # iso
+    elsif str.sub!(/([-+]?\d+)-(\d+)-(-?\d+)/no, ' ')
+      year = $1.to_i
+      mon = $2.to_i
+      mday = $3.to_i
+
+      if $1.size > 2
+    comp = false
+      elsif $3.size > 2
+    comp = false
+    mday, mon, year = year, mon, mday
+      end
+
+    # jis
+    elsif str.sub!(/([MTSH])(\d+)\.(\d+)\.(\d+)/ino, ' ')
+      e = { 'm'=>1867,
+        't'=>1911,
+        's'=>1925,
+        'h'=>1988
+      }[$1.downcase]
+      year = $2.to_i + e
+      mon = $3.to_i
+      mday = $4.to_i
+
+    # vms
+    elsif str.sub!(/(-?\d+)-(#{PARSE_MONTHPAT})[^-]*-(-?\d+)/ino, ' ')
+      mday = $1.to_i
+      mon = ABBR_MONTHS[$2.downcase]
+      year = $3.to_i
+
+      if $1.size > 2
+    comp = false
+    year, mon, mday = mday, mon, year
+      elsif $3.size > 2
+    comp = false
+      end
+
+    # sla
+    elsif str.sub!(%r|(-?\d+)/(\d+)(?:/(-?\d+))?|no, ' ')
+      mon = $1.to_i
+      mday = $2.to_i
+
+      if $3
+    year = $3.to_i
+    if $3.size > 2
+      comp = false
+    end
+      end
+
+      if $3 && $1.size > 2
+    comp = false
+    year, mon, mday = mon, mday, year
+      end
+
+    # ddd
+    elsif str.sub!(
+           /([-+]?)(\d{4,14})
+            (?:
+              \s*
+              T?
+              \s*
+              (\d{2,6})(?:[,.](\d*))?
+            )?
+            (?:
+              \s*
+              (
+            Z
+              |
+            [-+]\d{2,4}
+              )
+              \b
+            )?
+           /inox,
+           ' ')
+      case $2.size
+      when 4
+    mon  = $2[ 0, 2].to_i
+    mday = $2[ 2, 2].to_i
+      when 6
+    year = ($1 + $2[ 0, 2]).to_i
+    mon  = $2[ 2, 2].to_i
+    mday = $2[ 4, 2].to_i
+      when 8, 10, 12, 14
+    year = ($1 + $2[ 0, 4]).to_i
+    mon  = $2[ 4, 2].to_i
+    mday = $2[ 6, 2].to_i
+    hour = $2[ 8, 2].to_i if $2.size >= 10
+    min  = $2[10, 2].to_i if $2.size >= 12
+    sec  = $2[12, 2].to_i if $2.size >= 14
+    comp = false
+      end
+      if $3
+    case $3.size
+    when 2, 4, 6
+      hour = $3[ 0, 2].to_i
+      min  = $3[ 2, 2].to_i if $3.size >= 4
+      sec  = $3[ 4, 2].to_i if $3.size >= 6
+    end
+      end
+      if $4
+    sec_fraction = $4.to_i.to_r / (10**$4.size)
+      end
+      if $5
+    zone = $5
+      end
+    end
+
+    if str.sub!(/\b(bc\b|bce\b|b\.c\.|b\.c\.e\.)/ino, ' ')
+      if year
+    year = -year + 1
+      end
+    end
+
+    if comp and year
+      if year >= 0 and year <= 99
+    if year >= 69
+      year += 1900
+    else
+      year += 2000
+    end
+      end
+    end
+
+    elem = {}
+    elem[:year] = year if year
+    elem[:mon] = mon if mon
+    elem[:mday] = mday if mday
+    elem[:hour] = hour if hour
+    elem[:min] = min if min
+    elem[:sec] = sec if sec
+    elem[:sec_fraction] = sec_fraction if sec_fraction
+    elem[:zone] = zone if zone
+    offset = zone_to_diff(zone) if zone
+    elem[:offset] = offset if offset
+    elem[:wday] = wday if wday
+    elem
+  end
+
+  def self.zone_to_diff(str)
+    abb, dst = str.downcase.split(/\s+/o, 2)
+    if ZONES.include?(abb)
+      offset  = ZONES[abb]
+      offset += 3600 if dst
+    elsif /\A([-+])(\d{2}):?(\d{2})?\Z/no =~ str
+      offset = $2.to_i * 3600 + $3.to_i * 60
+      offset *= -1 if $1 == '-'
+    end
+    offset
+  end
+
+  def strftime(fmt='%F')
+    o = ''
+    fmt.scan(/%[EO]?.|./o) do |c|
+      cc = c.sub(/^%[EO]?(.)$/o, '%\\1')
+      case cc
+      when '%A'; o << DAYNAMES[wday]
+      when '%a'; o << ABBR_DAYNAMES[wday]
+      when '%B'; o << MONTHNAMES[mon]
+      when '%b'; o << ABBR_MONTHNAMES[mon]
+      when '%C'; o << '%02d' % (year / 100.0).floor        # P2,ID
+      when '%c'; o << strftime('%a %b %e %H:%M:%S %Y')
+      when '%D'; o << strftime('%m/%d/%y')            # P2,ID
+      when '%d'; o << '%02d' % mday
+      when '%e'; o <<  '%2d' % mday
+      when '%F'; o << strftime('%Y-%m-%d')            # ID
+      when '%G'; o << '%.4d' %  cwyear                # ID
+      when '%g'; o << '%02d' % (cwyear % 100)            # ID
+      when '%H'; o << '%02d' %   hour
+      when '%h'; o << strftime('%b')                # P2,ID
+      when '%I'; o << '%02d' % ((hour % 12).nonzero? or 12)
+      when '%j'; o << '%03d' % yday
+      when '%k'; o <<  '%2d' %   hour                # AR,TZ,GL
+      when '%l'; o <<  '%2d' % ((hour % 12).nonzero? or 12)    # AR,TZ,GL
+      when '%M'; o << '%02d' % min
+      when '%m'; o << '%02d' % mon
+      when '%n'; o << "\n"                    # P2,ID
+      when '%P'; o << if hour < 12 then 'am' else 'pm' end    # GL
+      when '%p'; o << if hour < 12 then 'AM' else 'PM' end
+      when '%R'; o << strftime('%H:%M')                # ID
+      when '%r'; o << strftime('%I:%M:%S %p')            # P2,ID
+      when '%S'; o << '%02d' % sec
+      when '%s'                            # TZ,GL
+    d = ajd - self.class.jd_to_ajd(self.class.civil_to_jd(1970,1,1), 0)
+    s = (d * 86400).to_i
+    o << '%d' % s
+      when '%T'; o << strftime('%H:%M:%S')            # P2,ID
+      when '%t'; o << "\t"                    # P2,ID
+      when '%U', '%W'
+    a = self.class.civil_to_jd(year, 1, 1, ns?) + 6
+    k = if c == '%U' then 0 else 1 end
+    w = (jd - (a - ((a - k) + 1) % 7) + 7) / 7
+    o << '%02d' % w
+      when '%u'; o <<   '%d' % cwday                # P2,ID
+      when '%V'; o << '%02d' % cweek                # P2,ID
+      when '%v'; o << strftime('%e-%b-%Y')            # AR,TZ
+      when '%w'; o <<   '%d' % wday
+      when '%X'; o << strftime('%H:%M:%S')
+      when '%x'; o << strftime('%m/%d/%y')
+      when '%Y'; o << '%.4d' %  year
+      when '%y'; o << '%02d' % (year % 100)
+      when '%Z'; o << (if offset.zero? then 'Z' else strftime('%z') end)
+      when '%z'                            # ID
+    o << if offset < 0 then '-' else '+' end
+    of = offset.abs
+    hh, fr = of.divmod(1.to_r/24)
+    mm = fr / (1.to_r/1440)
+    o << '%02d' % hh
+    o << '%02d' % mm
+      when '%%'; o << '%'
+      when '%+'; o << strftime('%a %b %e %H:%M:%S %Z %Y')    # TZ
+=begin
+      when '%.'
+    o << '%06d' % (sec_fraction / (1.to_r/86400/(10**6)))
+=end
+      when '%1'; o <<   '%d' % jd
+      when '%2'; o << strftime('%Y-%j')
+      when '%3'; o << strftime('%Y-%m-%d')
+      else;      o << c
+      end
+    end
+    o
+  end
+
+# alias_method :format, :strftime
+
+  def asctime() strftime('%c') end
+
+  alias_method :ctime, :asctime
+
+end
+
+class DateTime < Date
+
+  def self._strptime(str, fmt='%FT%T%Z')
+    super(str, fmt)
+  end
+
+  def strftime(fmt='%FT%T%Z')
+    super(fmt)
+  end
+
+end
+
+require 'generator'
+a = [2, 3, 5, 7, 11]
+b = %w#h a l l o#
+SyncEnumerator.new(a, b).each { |i, j|
+  puts "#{i} & #{j}"
+}
+
+class Signature < Array
+    def === x
+        x.kind_of? Array and zip(x).all? { |me, it| me === it }
+    end
+end
+
+module Chess
+
+    BOARD_RANGE = 1..8
+   
+    class Position
+       
+        attr_reader :x, :y
+       
+        def initialize *args
+            @x, @y = case args
+            when Signature[Fixnum, Fixnum]
+                args
+            when Signature[String]
+                Position.decode args.first
+            else
+                raise ArgumentError, 'wrong number of arguments(one String or two fixnums)'
+            end
+            raise RuntimeError, '%p is out of the chess board' % self unless Position.valid? @x, @y
+        end
+   
+        def inspect
+            'Position(%p, %p)' % [x, y]
+        end
+       
+        def Position.decode pos
+            x, y = pos.split('')
+            return x.upcase[0] - ?A + 1, @y = y[0] - ?0
+        end
+       
+        def Position.valid? x, y
+            BOARD_RANGE.include? x and BOARD_RANGE.include? y
+        end
+    end
+   
+end
+
+p Chess::Position.new('H3')
+SuperString = Class.new String
+p Chess::Position.new(SuperString.new('C5'))
+p Chess::Position.new(3, 6)
+p Chess::Position.new(3, 9)
+
+require 'grammar'
+
+def test_grammars
+    [<<EOG1, <<EOG2, <<EOG3,].map { |g| Grammar.new g }
+Z --> S
+S --> Sb
+S --> bAa
+A --> aSc
+A --> a
+A --> aSb
+EOG1
+
+C --> d
+C --> ABC
+B -->
+B --> c
+A --> B
+A --> a
+EOG2
+
+E - TD
+D - pTD
+D -
+T - FS
+S - uFS
+S -
+F - aEz
+F - i
+EOG3
+end
+
+$trace = false
+test_grammars.each_with_index do |g, i|
+    puts "Grammar #{i} is #{'not ' if g.ll1?}LL(1)."
+end
diff --git a/test/scanners/ruby/1.out.raydebug b/test/scanners/ruby/1.out.raydebug
new file mode 100644
index 0000000..510e7c6
--- /dev/null
+++ b/test/scanners/ruby/1.out.raydebug
@@ -0,0 +1,731 @@
+ident(public) symbol(:<<)
+
+reserved(class) class(String)
+    reserved(def) method(/) ident(regex)
+        ident(scan)operator(()ident(regex)operator(\))operator(.)ident(first)
+    reserved(end)
+reserved(end)
+
+reserved(module) class(Bytes)
+    constant(KILOBYTE)operator(,) constant(MEGABYTE)operator(,) constant(GIGABYTE)operator(,) constant(TERABYTE)operator(,) constant(PETABYTE) operator(=) operator(()integer(1)operator(..)integer(5)operator(\))operator(.)ident(map) operator({) operator(|)ident(x)operator(|) integer(2) operator(**) operator(()integer(10) operator(*) ident(x)operator(\)) operator(})
+    constant(FactorOfSuffix) operator(=) constant(Hash)operator(.)ident(new)operator(()integer(1)operator(\))
+    ident(constants)operator(.)ident(each) reserved(do) operator(|)ident(c)operator(|)
+        constant(FactorOfSuffix)operator([)ident(c)operator([)integer(0)operator(,)integer(1)operator(])operator(]) operator(=) ident(const_get) ident(c)
+    reserved(end)
+   
+    reserved(def) constant(Bytes)operator(.)ident(factor_of_suffix) ident(suff)
+        constant(FactorOfSuffix)operator([)ident(suff)operator(])
+    reserved(end)
+   
+    reserved(def) constant(Bytes)operator(.)operator([]) ident(str)
+        ident(n)operator(,) ident(fac) operator(=) ident(str) operator(/) regexp<delimiter(/)content((.+\)([A-Z]\))delimiter(/)>
+        ident(n) operator(=) ident(n)operator(.)ident(to_i)
+        ident(fac) operator(=) ident(factor_of_suffix) ident(fac)
+        ident(n) operator(*) ident(fac)
+    reserved(end)
+reserved(end)
+
+reserved(class) class(String)
+    reserved(def) method(to_bytes)
+        constant(Bytes)operator([)pre_constant(self)operator(])
+    reserved(end)
+reserved(end)
+
+ident(p) string<delimiter(')content(01K)delimiter(')>operator(.)ident(to_bytes)
+ident(p) string<delimiter(')content(%d - %p)delimiter(')> operator(%) operator([)constant(Bytes)operator(.)ident(constants)operator(.)ident(size)operator(,) pre_constant(self)operator(])
+
+ident(p) string<delimiter(')content(abc)delimiter(')> operator(/) regexp<delimiter(/)content(([ac]\))delimiter(/)>
+
+ident(p) string<delimiter(')content(abc)delimiter(')> operator(+) regexp<delimiter(/)content(([ac]\))delimiter(/)>
+ident(p) string<delimiter(')content(abc)delimiter(')> operator(-) regexp<delimiter(/)content(([ac]\))delimiter(/)>
+ident(p) string<delimiter(')content(abc)delimiter(')> operator(*) regexp<delimiter(/)content(([ac]\))delimiter(/)>
+ident(p) string<delimiter(')content(abc)delimiter(')> operator(**) regexp<delimiter(/)content(([ac]\))delimiter(/)>
+ident(p) string<delimiter(')content(abc)delimiter(')> operator(%) regexp<delimiter(/)content(([ac]\))delimiter(/)>
+ident(p) string<delimiter(')content(abc)delimiter(')> operator(~) regexp<delimiter(/)content(([ac]\))delimiter(/)>
+
+ident(require) string<delimiter(')content(benchmark)delimiter(')>
+constant(S) operator(=) string<delimiter(')content(bla)delimiter(')> operator(*) integer(100) operator(+) string<delimiter(")char(\\n)delimiter(")> operator(+) string<delimiter(")char(\\t)delimiter(")>operator(*)integer(4)
+constant(T) operator(=) integer(200000)
+
+constant(Benchmark)operator(.)ident(bm)operator(()integer(1)operator(\)) reserved(do) operator(|)ident(bm)operator(|)
+    constant(GC)operator(.)ident(sweep)
+    ident(bm)operator(.)ident(report)operator(()string<delimiter(')content(?)delimiter(')>operator(\)) operator({) constant(T)operator(.)ident(times) operator({) constant(S)operator(.)ident(index)operator(()integer(?\\n)operator(\)) operator(}) operator(})
+    constant(GC)operator(.)ident(sweep)
+    ident(bm)operator(.)ident(report)operator(()string<delimiter(')content(")delimiter(')>operator(\)) operator({) constant(T)operator(.)ident(times) operator({) constant(S)operator(.)ident(index)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\)) operator(}) operator(})
+    constant(GC)operator(.)ident(sweep)
+    ident(bm)operator(.)ident(report)operator(()string<delimiter(')content(/)delimiter(')>operator(\)) operator({) constant(T)operator(.)ident(times) operator({) constant(S)operator(.)ident(index)operator(()regexp<delimiter(/)char(\\n)delimiter(/)>operator(\)) operator(}) operator(})
+    constant(GC)operator(.)ident(sweep)
+reserved(end)
+
+  reserved(def) method(next?)operator(()operator(\))
+    operator(!)ident(end?)
+  reserved(end)
+  comment(# Rewinds the generator.)
+  reserved(def) method(rewind)operator(()operator(\))
+    ident(initialize)operator(()pre_constant(nil)operator(,) operator(&)instance_variable(@block)operator(\)) reserved(if) instance_variable(@index)operator(.)ident(nonzero?)
+
+    pre_constant(self)
+  reserved(end)
+
+ident(a) operator(=) operator([)operator(])
+ident(a) operator(<<) ident(a)
+ident(p) ident(a)  comment(#-> [[...]])
+
+comment(# format.rb: Written by Tadayoshi Funaba 1999-2004)
+comment(# $Id: format.rb,v 2.14 2004-11-06 10:58:40+09 tadf Exp $)
+
+ident(require) string<delimiter(')content(rational)delimiter(')>
+
+reserved(class) class(Date)
+
+  constant(MONTHS) operator(=) operator({)
+    string<delimiter(')content(january)delimiter(')>  operator(=)operator(>) integer(1)operator(,) string<delimiter(')content(february)delimiter(')> operator(=)operator(>) integer(2)operator(,) string<delimiter(')content(march)delimiter(')>    operator(=)operator(>) integer(3)operator(,) string<delimiter(')content(april)delimiter(')>    operator(=)operator(>) integer(4)operator(,)
+    string<delimiter(')content(may)delimiter(')>      operator(=)operator(>) integer(5)operator(,) string<delimiter(')content(june)delimiter(')>     operator(=)operator(>) integer(6)operator(,) string<delimiter(')content(july)delimiter(')>     operator(=)operator(>) integer(7)operator(,) string<delimiter(')content(august)delimiter(')>   operator(=)operator(>) integer(8)operator(,)
+    string<delimiter(')content(september)delimiter(')>operator(=)operator(>) integer(9)operator(,) string<delimiter(')content(october)delimiter(')>  operator(=)operator(>)integer(10)operator(,) string<delimiter(')content(november)delimiter(')> operator(=)operator(>)integer(11)operator(,) string<delimiter(')content(december)delimiter(')> operator(=)operator(>)integer(12)
+  operator(})
+
+  constant(DAYS) operator(=) operator({)
+    string<delimiter(')content(sunday)delimiter(')>   operator(=)operator(>) integer(0)operator(,) string<delimiter(')content(monday)delimiter(')>   operator(=)operator(>) integer(1)operator(,) string<delimiter(')content(tuesday)delimiter(')>  operator(=)operator(>) integer(2)operator(,) string<delimiter(')content(wednesday)delimiter(')>operator(=)operator(>) integer(3)operator(,)
+    string<delimiter(')content(thursday)delimiter(')> operator(=)operator(>) integer(4)operator(,) string<delimiter(')content(friday)delimiter(')>   operator(=)operator(>) integer(5)operator(,) string<delimiter(')content(saturday)delimiter(')> operator(=)operator(>) integer(6)
+  operator(})
+
+  constant(ABBR_MONTHS) operator(=) operator({)
+    string<delimiter(')content(jan)delimiter(')>      operator(=)operator(>) integer(1)operator(,) string<delimiter(')content(feb)delimiter(')>      operator(=)operator(>) integer(2)operator(,) string<delimiter(')content(mar)delimiter(')>      operator(=)operator(>) integer(3)operator(,) string<delimiter(')content(apr)delimiter(')>      operator(=)operator(>) integer(4)operator(,)
+    string<delimiter(')content(may)delimiter(')>      operator(=)operator(>) integer(5)operator(,) string<delimiter(')content(jun)delimiter(')>      operator(=)operator(>) integer(6)operator(,) string<delimiter(')content(jul)delimiter(')>      operator(=)operator(>) integer(7)operator(,) string<delimiter(')content(aug)delimiter(')>      operator(=)operator(>) integer(8)operator(,)
+    string<delimiter(')content(sep)delimiter(')>      operator(=)operator(>) integer(9)operator(,) string<delimiter(')content(oct)delimiter(')>      operator(=)operator(>)integer(10)operator(,) string<delimiter(')content(nov)delimiter(')>      operator(=)operator(>)integer(11)operator(,) string<delimiter(')content(dec)delimiter(')>      operator(=)operator(>)integer(12)
+  operator(})
+
+  constant(ABBR_DAYS) operator(=) operator({)
+    string<delimiter(')content(sun)delimiter(')>      operator(=)operator(>) integer(0)operator(,) string<delimiter(')content(mon)delimiter(')>      operator(=)operator(>) integer(1)operator(,) string<delimiter(')content(tue)delimiter(')>      operator(=)operator(>) integer(2)operator(,) string<delimiter(')content(wed)delimiter(')>      operator(=)operator(>) integer(3)operator(,)
+    string<delimiter(')content(thu)delimiter(')>      operator(=)operator(>) integer(4)operator(,) string<delimiter(')content(fri)delimiter(')>      operator(=)operator(>) integer(5)operator(,) string<delimiter(')content(sat)delimiter(')>      operator(=)operator(>) integer(6)
+  operator(})
+
+  constant(ZONES) operator(=) operator({)
+    string<delimiter(')content(ut)delimiter(')>  operator(=)operator(>)  integer(0)operator(*)integer(3600)operator(,) string<delimiter(')content(gmt)delimiter(')> operator(=)operator(>)  integer(0)operator(*)integer(3600)operator(,) string<delimiter(')content(est)delimiter(')> operator(=)operator(>) integer(-5)operator(*)integer(3600)operator(,) string<delimiter(')content(edt)delimiter(')> operator(=)operator(>) integer(-4)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(cst)delimiter(')> operator(=)operator(>) integer(-6)operator(*)integer(3600)operator(,) string<delimiter(')content(cdt)delimiter(')> operator(=)operator(>) integer(-5)operator(*)integer(3600)operator(,) string<delimiter(')content(mst)delimiter(')> operator(=)operator(>) integer(-7)operator(*)integer(3600)operator(,) string<delimiter(')content(mdt)delimiter(')> operator(=)operator(>) integer(-6)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(pst)delimiter(')> operator(=)operator(>) integer(-8)operator(*)integer(3600)operator(,) string<delimiter(')content(pdt)delimiter(')> operator(=)operator(>) integer(-7)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(a)delimiter(')>   operator(=)operator(>)  integer(1)operator(*)integer(3600)operator(,) string<delimiter(')content(b)delimiter(')>   operator(=)operator(>)  integer(2)operator(*)integer(3600)operator(,) string<delimiter(')content(c)delimiter(')>   operator(=)operator(>)  integer(3)operator(*)integer(3600)operator(,) string<delimiter(')content(d)delimiter(')>   operator(=)operator(>)  integer(4)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(e)delimiter(')>   operator(=)operator(>)  integer(5)operator(*)integer(3600)operator(,) string<delimiter(')content(f)delimiter(')>   operator(=)operator(>)  integer(6)operator(*)integer(3600)operator(,) string<delimiter(')content(g)delimiter(')>   operator(=)operator(>)  integer(7)operator(*)integer(3600)operator(,) string<delimiter(')content(h)delimiter(')>   operator(=)operator(>)  integer(8)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(i)delimiter(')>   operator(=)operator(>)  integer(9)operator(*)integer(3600)operator(,) string<delimiter(')content(k)delimiter(')>   operator(=)operator(>) integer(10)operator(*)integer(3600)operator(,) string<delimiter(')content(l)delimiter(')>   operator(=)operator(>) integer(11)operator(*)integer(3600)operator(,) string<delimiter(')content(m)delimiter(')>   operator(=)operator(>) integer(12)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(n)delimiter(')>   operator(=)operator(>) integer(-1)operator(*)integer(3600)operator(,) string<delimiter(')content(o)delimiter(')>   operator(=)operator(>) integer(-2)operator(*)integer(3600)operator(,) string<delimiter(')content(p)delimiter(')>   operator(=)operator(>) integer(-3)operator(*)integer(3600)operator(,) string<delimiter(')content(q)delimiter(')>   operator(=)operator(>) integer(-4)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(r)delimiter(')>   operator(=)operator(>) integer(-5)operator(*)integer(3600)operator(,) string<delimiter(')content(s)delimiter(')>   operator(=)operator(>) integer(-6)operator(*)integer(3600)operator(,) string<delimiter(')content(t)delimiter(')>   operator(=)operator(>) integer(-7)operator(*)integer(3600)operator(,) string<delimiter(')content(u)delimiter(')>   operator(=)operator(>) integer(-8)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(v)delimiter(')>   operator(=)operator(>) integer(-9)operator(*)integer(3600)operator(,) string<delimiter(')content(w)delimiter(')>   operator(=)operator(>)integer(-10)operator(*)integer(3600)operator(,) string<delimiter(')content(x)delimiter(')>   operator(=)operator(>)integer(-11)operator(*)integer(3600)operator(,) string<delimiter(')content(y)delimiter(')>   operator(=)operator(>)integer(-12)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(z)delimiter(')>   operator(=)operator(>)  integer(0)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(utc)delimiter(')> operator(=)operator(>)  integer(0)operator(*)integer(3600)operator(,) string<delimiter(')content(wet)delimiter(')> operator(=)operator(>)  integer(0)operator(*)integer(3600)operator(,) string<delimiter(')content(bst)delimiter(')> operator(=)operator(>)  integer(1)operator(*)integer(3600)operator(,) string<delimiter(')content(wat)delimiter(')> operator(=)operator(>) integer(-1)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(at)delimiter(')>  operator(=)operator(>) integer(-2)operator(*)integer(3600)operator(,) string<delimiter(')content(ast)delimiter(')> operator(=)operator(>) integer(-4)operator(*)integer(3600)operator(,) string<delimiter(')content(adt)delimiter(')> operator(=)operator(>) integer(-3)operator(*)integer(3600)operator(,) string<delimiter(')content(yst)delimiter(')> operator(=)operator(>) integer(-9)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(ydt)delimiter(')> operator(=)operator(>) integer(-8)operator(*)integer(3600)operator(,) string<delimiter(')content(hst)delimiter(')> operator(=)operator(>)integer(-10)operator(*)integer(3600)operator(,) string<delimiter(')content(hdt)delimiter(')> operator(=)operator(>) integer(-9)operator(*)integer(3600)operator(,) string<delimiter(')content(cat)delimiter(')> operator(=)operator(>)integer(-10)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(ahst)delimiter(')>operator(=)operator(>)integer(-10)operator(*)integer(3600)operator(,) string<delimiter(')content(nt)delimiter(')>  operator(=)operator(>)integer(-11)operator(*)integer(3600)operator(,) string<delimiter(')content(idlw)delimiter(')>operator(=)operator(>)integer(-12)operator(*)integer(3600)operator(,) string<delimiter(')content(cet)delimiter(')> operator(=)operator(>)  integer(1)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(met)delimiter(')> operator(=)operator(>)  integer(1)operator(*)integer(3600)operator(,) string<delimiter(')content(mewt)delimiter(')>operator(=)operator(>)  integer(1)operator(*)integer(3600)operator(,) string<delimiter(')content(mest)delimiter(')>operator(=)operator(>)  integer(2)operator(*)integer(3600)operator(,) string<delimiter(')content(mesz)delimiter(')>operator(=)operator(>)  integer(2)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(swt)delimiter(')> operator(=)operator(>)  integer(1)operator(*)integer(3600)operator(,) string<delimiter(')content(sst)delimiter(')> operator(=)operator(>)  integer(2)operator(*)integer(3600)operator(,) string<delimiter(')content(fwt)delimiter(')> operator(=)operator(>)  integer(1)operator(*)integer(3600)operator(,) string<delimiter(')content(fst)delimiter(')> operator(=)operator(>)  integer(2)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(eet)delimiter(')> operator(=)operator(>)  integer(2)operator(*)integer(3600)operator(,) string<delimiter(')content(bt)delimiter(')>  operator(=)operator(>)  integer(3)operator(*)integer(3600)operator(,) string<delimiter(')content(zp4)delimiter(')> operator(=)operator(>)  integer(4)operator(*)integer(3600)operator(,) string<delimiter(')content(zp5)delimiter(')> operator(=)operator(>)  integer(5)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(zp6)delimiter(')> operator(=)operator(>)  integer(6)operator(*)integer(3600)operator(,) string<delimiter(')content(wast)delimiter(')>operator(=)operator(>)  integer(7)operator(*)integer(3600)operator(,) string<delimiter(')content(wadt)delimiter(')>operator(=)operator(>)  integer(8)operator(*)integer(3600)operator(,) string<delimiter(')content(cct)delimiter(')> operator(=)operator(>)  integer(8)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(jst)delimiter(')> operator(=)operator(>)  integer(9)operator(*)integer(3600)operator(,) string<delimiter(')content(east)delimiter(')>operator(=)operator(>) integer(10)operator(*)integer(3600)operator(,) string<delimiter(')content(eadt)delimiter(')>operator(=)operator(>) integer(11)operator(*)integer(3600)operator(,) string<delimiter(')content(gst)delimiter(')> operator(=)operator(>) integer(10)operator(*)integer(3600)operator(,)
+    string<delimiter(')content(nzt)delimiter(')> operator(=)operator(>) integer(12)operator(*)integer(3600)operator(,) string<delimiter(')content(nzst)delimiter(')>operator(=)operator(>) integer(12)operator(*)integer(3600)operator(,) string<delimiter(')content(nzdt)delimiter(')>operator(=)operator(>) integer(13)operator(*)integer(3600)operator(,) string<delimiter(')content(idle)delimiter(')>operator(=)operator(>) integer(12)operator(*)integer(3600)
+  operator(})
+
+  reserved(def) pre_constant(self)operator(.)ident(__strptime)operator(()ident(str)operator(,) ident(fmt)operator(,) ident(elem)operator(\))
+    ident(fmt)operator(.)ident(scan)operator(()regexp<delimiter(/)content(%[EO]?.|.)delimiter(/)modifier(o)>operator(\)) reserved(do) operator(|)ident(c)operator(|)
+      ident(cc) operator(=) ident(c)operator(.)ident(sub)operator(()regexp<delimiter(/)char(\\A)content(%[EO]?(.\))char(\\Z)delimiter(/)modifier(o)>operator(,) string<delimiter(')content(%)char(\\\\)content(1)delimiter(')>operator(\))
+      reserved(case) ident(cc)
+      reserved(when) regexp<delimiter(/)char(\\A)char(\\s)delimiter(/)modifier(o)>
+    ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content([)char(\\s)char(\\v)content(]+)delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+      reserved(when) string<delimiter(')content(%A)delimiter(')>operator(,) string<delimiter(')content(%a)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(([a-z]+\))char(\\b)delimiter(/)modifier(io)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) constant(DAYS)operator([)global_variable($1)operator(.)ident(downcase)operator(]) operator(||) constant(ABBR_DAYS)operator([)global_variable($1)operator(.)ident(downcase)operator(])
+    reserved(return) reserved(unless) ident(val)
+    ident(elem)operator([)symbol(:wday)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%B)delimiter(')>operator(,) string<delimiter(')content(%b)delimiter(')>operator(,) string<delimiter(')content(%h)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(([a-z]+\))char(\\b)delimiter(/)modifier(io)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) constant(MONTHS)operator([)global_variable($1)operator(.)ident(downcase)operator(]) operator(||) constant(ABBR_MONTHS)operator([)global_variable($1)operator(.)ident(downcase)operator(])
+    reserved(return) reserved(unless) ident(val)
+    ident(elem)operator([)symbol(:mon)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%C)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    ident(elem)operator([)symbol(:cent)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%c)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%a %b %e %H:%M:%S %Y)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%D)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%m/%d/%y)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%d)delimiter(')>operator(,) string<delimiter(')content(%e)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content( ?()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(1)operator(..)integer(31)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:mday)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%F)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%Y-%m-%d)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%G)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(([-+]?)char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    ident(elem)operator([)symbol(:cwyear)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%g)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(0)operator(..)integer(99)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:cwyear)operator(]) operator(=) ident(val)
+    ident(elem)operator([)symbol(:cent)operator(]) operator(||=) reserved(if) ident(val) operator(>)operator(=) integer(69) reserved(then) integer(19) reserved(else) integer(20) reserved(end)
+      reserved(when) string<delimiter(')content(%H)delimiter(')>operator(,) string<delimiter(')content(%k)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content( ?()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(0)operator(..)integer(24)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:hour)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%I)delimiter(')>operator(,) string<delimiter(')content(%l)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content( ?()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(1)operator(..)integer(12)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:hour)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%j)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(1)operator(..)integer(366)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:yday)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%M)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(0)operator(..)integer(59)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:min)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%m)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(1)operator(..)integer(12)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:mon)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%n)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content( )delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%p)delimiter(')>operator(,) string<delimiter(')content(%P)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(([ap]\)(?:m)char(\\b)content(|)char(\\.)content(m)char(\\.)content(\))delimiter(/)modifier(io)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(elem)operator([)symbol(:merid)operator(]) operator(=) reserved(if) global_variable($1)operator(.)ident(downcase) operator(==) string<delimiter(')content(a)delimiter(')> reserved(then) integer(0) reserved(else) integer(12) reserved(end)
+      reserved(when) string<delimiter(')content(%R)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%H:%M)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%r)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%I:%M:%S %p)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%S)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(0)operator(..)integer(60)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:sec)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%s)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    ident(elem)operator([)symbol(:seconds)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%T)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%H:%M:%S)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%t)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content( )delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%U)delimiter(')>operator(,) string<delimiter(')content(%W)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(0)operator(..)integer(53)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)reserved(if) ident(c) operator(==) string<delimiter(')content(%U)delimiter(')> reserved(then) symbol(:wnum0) reserved(else) symbol(:wnum1) reserved(end)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%u)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(1)operator(..)integer(7)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:cwday)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%V)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(1)operator(..)integer(53)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:cweek)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%v)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%e-%b-%Y)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%w)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(0)operator(..)integer(6)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:wday)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%X)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%H:%M:%S)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%x)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%m/%d/%y)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%Y)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(([-+]?)char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    ident(elem)operator([)symbol(:year)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%y)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    reserved(return) reserved(unless) operator(()integer(0)operator(..)integer(99)operator(\)) operator(===) ident(val)
+    ident(elem)operator([)symbol(:year)operator(]) operator(=) ident(val)
+    ident(elem)operator([)symbol(:cent)operator(]) operator(||=) reserved(if) ident(val) operator(>)operator(=) integer(69) reserved(then) integer(19) reserved(else) integer(20) reserved(end)
+      reserved(when) string<delimiter(')content(%Z)delimiter(')>operator(,) string<delimiter(')content(%z)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(([-+:a-z0-9]+(?:)char(\\s)content(+dst)char(\\b)content(\)?\))delimiter(/)modifier(io)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)
+    ident(elem)operator([)symbol(:zone)operator(]) operator(=) ident(val)
+    ident(offset) operator(=) ident(zone_to_diff)operator(()ident(val)operator(\))
+    ident(elem)operator([)symbol(:offset)operator(]) operator(=) ident(offset)
+      reserved(when) string<delimiter(')content(%%)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(%)delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+      reserved(when) string<delimiter(')content(%+)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%a %b %e %H:%M:%S %Z %Y)delimiter(')>operator(,) ident(elem)operator(\))
+comment(=begin
+      when '%.'
+    return unless str.sub!(/\\A(\\d+\)/o, ''\)
+    val = $1.to_i.to_r / (10**$1.size\)
+    elem[:sec_fraction] = val
+=end)
+      reserved(when) string<delimiter(')content(%1)delimiter(')>
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\A)content(()char(\\d)content(+\))delimiter(/)modifier(o)>operator(,) string<delimiter(')delimiter(')>operator(\))
+    ident(val) operator(=) global_variable($1)operator(.)ident(to_i)
+    ident(elem)operator([)symbol(:jd)operator(]) operator(=) ident(val)
+      reserved(when) string<delimiter(')content(%2)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%Y-%j)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(when) string<delimiter(')content(%3)delimiter(')>
+    reserved(return) reserved(unless) ident(__strptime)operator(()ident(str)operator(,) string<delimiter(')content(%F)delimiter(')>operator(,) ident(elem)operator(\))
+      reserved(else)
+    reserved(return) reserved(unless) ident(str)operator(.)ident(sub!)operator(()constant(Regexp)operator(.)ident(new)operator(()string<delimiter(')char(\\\\)content(A)delimiter(')> operator(+) constant(Regexp)operator(.)ident(quote)operator(()ident(c)operator(\))operator(\))operator(,) string<delimiter(')delimiter(')>operator(\))
+      reserved(end)
+    reserved(end)
+
+    reserved(if) ident(cent) operator(=) ident(elem)operator(.)ident(delete)operator(()symbol(:cent)operator(\))
+      reserved(if) ident(elem)operator([)symbol(:cwyear)operator(])
+    ident(elem)operator([)symbol(:cwyear)operator(]) operator(+=) ident(cent) operator(*) integer(100)
+      reserved(end)
+      reserved(if) ident(elem)operator([)symbol(:year)operator(])
+    ident(elem)operator([)symbol(:year)operator(]) operator(+=) ident(cent) operator(*) integer(100)
+      reserved(end)
+    reserved(end)
+
+    reserved(if) ident(merid) operator(=) ident(elem)operator(.)ident(delete)operator(()symbol(:merid)operator(\))
+      reserved(if) ident(elem)operator([)symbol(:hour)operator(])
+    ident(elem)operator([)symbol(:hour)operator(]) operator(%=) integer(12)
+    ident(elem)operator([)symbol(:hour)operator(]) operator(+=) ident(merid)
+      reserved(end)
+    reserved(end)
+
+    ident(str)
+  reserved(end)
+
+  ident(private_class_method) symbol(:__strptime)
+
+  reserved(def) pre_constant(self)operator(.)ident(_strptime)operator(()ident(str)operator(,) ident(fmt)operator(=)string<delimiter(')content(%F)delimiter(')>operator(\))
+    ident(elem) operator(=) operator({)operator(})
+    ident(elem) reserved(if) ident(__strptime)operator(()ident(str)operator(.)ident(dup)operator(,) ident(fmt)operator(,) ident(elem)operator(\))
+  reserved(end)
+
+  constant(PARSE_MONTHPAT) operator(=) constant(ABBR_MONTHS)operator(.)ident(keys)operator(.)ident(join)operator(()string<delimiter(')content(|)delimiter(')>operator(\))
+  constant(PARSE_DAYPAT)   operator(=) constant(ABBR_DAYS)operator(.)  ident(keys)operator(.)ident(join)operator(()string<delimiter(')content(|)delimiter(')>operator(\))
+
+  reserved(def) pre_constant(self)operator(.)ident(_parse)operator(()ident(str)operator(,) ident(comp)operator(=)pre_constant(false)operator(\))
+    ident(str) operator(=) ident(str)operator(.)ident(dup)
+
+    ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content([^-+,.)char(\\/)content(:0-9a-z]+)delimiter(/)modifier(ino)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+
+    comment(# day)
+    reserved(if) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(()inline<delimiter(#{)constant(PARSE_DAYPAT)delimiter(})>content(\))char(\\S)content(*)delimiter(/)modifier(ino)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+      ident(wday) operator(=) constant(ABBR_DAYS)operator([)global_variable($1)operator(.)ident(downcase)operator(])
+    reserved(end)
+
+    comment(# time)
+    reserved(if) ident(str)operator(.)ident(sub!)operator(()
+        regexp<delimiter(/)content(()char(\\d)content(+\):()char(\\d)content(+\)
+         (?:
+           :()char(\\d)content(+\)(?:[,.]()char(\\d)content(*\)\)?
+         \)?
+         (?:
+           )char(\\s)content(*
+           ([ap]\)(?:m)char(\\b)content(|)char(\\.)content(m)char(\\.)content(\)
+         \)?
+         (?:
+           )char(\\s)content(*
+           (
+             [a-z]+(?:)char(\\s)content(+dst\)?)char(\\b)content(
+           |
+             [-+])char(\\d)content(+(?::?)char(\\d)content(+\)
+           \)
+         \)?
+        )delimiter(/)modifier(inox)>operator(,)
+        string<delimiter(')content( )delimiter(')>operator(\))
+      ident(hour) operator(=) global_variable($1)operator(.)ident(to_i)
+      ident(min) operator(=) global_variable($2)operator(.)ident(to_i)
+      ident(sec) operator(=) global_variable($3)operator(.)ident(to_i) reserved(if) global_variable($3)
+      reserved(if) global_variable($4)
+    ident(sec_fraction) operator(=) global_variable($4)operator(.)ident(to_i)operator(.)ident(to_r) operator(/) operator(()integer(10)operator(**)global_variable($4)operator(.)ident(size)operator(\))
+      reserved(end)
+
+      reserved(if) global_variable($5)
+    ident(hour) operator(%=) integer(12)
+    reserved(if) global_variable($5)operator(.)ident(downcase) operator(==) string<delimiter(')content(p)delimiter(')>
+      ident(hour) operator(+=) integer(12)
+    reserved(end)
+      reserved(end)
+
+      reserved(if) global_variable($6)
+    ident(zone) operator(=) global_variable($6)
+      reserved(end)
+    reserved(end)
+
+    comment(# eu)
+    reserved(if) ident(str)operator(.)ident(sub!)operator(()
+        regexp<delimiter(/)content(()char(\\d)content(+\))char(\\S)content(*
+         )char(\\s)content(+
+         ()inline<delimiter(#{)constant(PARSE_MONTHPAT)delimiter(})>content(\))char(\\S)content(*
+         (?:
+           )char(\\s)content(+
+           (-?)char(\\d)content(+\)
+         \)?
+        )delimiter(/)modifier(inox)>operator(,)
+        string<delimiter(')content( )delimiter(')>operator(\))
+      ident(mday) operator(=) global_variable($1)operator(.)ident(to_i)
+      ident(mon) operator(=) constant(ABBR_MONTHS)operator([)global_variable($2)operator(.)ident(downcase)operator(])
+
+      reserved(if) global_variable($3)
+    ident(year) operator(=) global_variable($3)operator(.)ident(to_i)
+    reserved(if) global_variable($3)operator(.)ident(size) operator(>) integer(2)
+      ident(comp) operator(=) pre_constant(false)
+    reserved(end)
+      reserved(end)
+
+    comment(# us)
+    reserved(elsif) ident(str)operator(.)ident(sub!)operator(()
+           regexp<delimiter(/)content(()inline<delimiter(#{)constant(PARSE_MONTHPAT)delimiter(})>content(\))char(\\S)content(*
+            )char(\\s)content(+
+            ()char(\\d)content(+\))char(\\S)content(*
+            (?:
+              )char(\\s)content(+
+              (-?)char(\\d)content(+\)
+            \)?
+           )delimiter(/)modifier(inox)>operator(,)
+           string<delimiter(')content( )delimiter(')>operator(\))
+      ident(mon) operator(=) constant(ABBR_MONTHS)operator([)global_variable($1)operator(.)ident(downcase)operator(])
+      ident(mday) operator(=) global_variable($2)operator(.)ident(to_i)
+
+      reserved(if) global_variable($3)
+    ident(year) operator(=) global_variable($3)operator(.)ident(to_i)
+    reserved(if) global_variable($3)operator(.)ident(size) operator(>) integer(2)
+      ident(comp) operator(=) pre_constant(false)
+    reserved(end)
+      reserved(end)
+
+    comment(# iso)
+    reserved(elsif) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(([-+]?)char(\\d)content(+\)-()char(\\d)content(+\)-(-?)char(\\d)content(+\))delimiter(/)modifier(no)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+      ident(year) operator(=) global_variable($1)operator(.)ident(to_i)
+      ident(mon) operator(=) global_variable($2)operator(.)ident(to_i)
+      ident(mday) operator(=) global_variable($3)operator(.)ident(to_i)
+
+      reserved(if) global_variable($1)operator(.)ident(size) operator(>) integer(2)
+    ident(comp) operator(=) pre_constant(false)
+      reserved(elsif) global_variable($3)operator(.)ident(size) operator(>) integer(2)
+    ident(comp) operator(=) pre_constant(false)
+    ident(mday)operator(,) ident(mon)operator(,) ident(year) operator(=) ident(year)operator(,) ident(mon)operator(,) ident(mday)
+      reserved(end)
+
+    comment(# jis)
+    reserved(elsif) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(([MTSH]\)()char(\\d)content(+\))char(\\.)content(()char(\\d)content(+\))char(\\.)content(()char(\\d)content(+\))delimiter(/)modifier(ino)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+      ident(e) operator(=) operator({) string<delimiter(')content(m)delimiter(')>operator(=)operator(>)integer(1867)operator(,)
+        string<delimiter(')content(t)delimiter(')>operator(=)operator(>)integer(1911)operator(,)
+        string<delimiter(')content(s)delimiter(')>operator(=)operator(>)integer(1925)operator(,)
+        string<delimiter(')content(h)delimiter(')>operator(=)operator(>)integer(1988)
+      operator(})operator([)global_variable($1)operator(.)ident(downcase)operator(])
+      ident(year) operator(=) global_variable($2)operator(.)ident(to_i) operator(+) ident(e)
+      ident(mon) operator(=) global_variable($3)operator(.)ident(to_i)
+      ident(mday) operator(=) global_variable($4)operator(.)ident(to_i)
+
+    comment(# vms)
+    reserved(elsif) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)content((-?)char(\\d)content(+\)-()inline<delimiter(#{)constant(PARSE_MONTHPAT)delimiter(})>content(\)[^-]*-(-?)char(\\d)content(+\))delimiter(/)modifier(ino)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+      ident(mday) operator(=) global_variable($1)operator(.)ident(to_i)
+      ident(mon) operator(=) constant(ABBR_MONTHS)operator([)global_variable($2)operator(.)ident(downcase)operator(])
+      ident(year) operator(=) global_variable($3)operator(.)ident(to_i)
+
+      reserved(if) global_variable($1)operator(.)ident(size) operator(>) integer(2)
+    ident(comp) operator(=) pre_constant(false)
+    ident(year)operator(,) ident(mon)operator(,) ident(mday) operator(=) ident(mday)operator(,) ident(mon)operator(,) ident(year)
+      reserved(elsif) global_variable($3)operator(.)ident(size) operator(>) integer(2)
+    ident(comp) operator(=) pre_constant(false)
+      reserved(end)
+
+    comment(# sla)
+    reserved(elsif) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(%r|)content((-?)char(\\d)content(+\)/()char(\\d)content(+\)(?:/(-?)char(\\d)content(+\)\)?)delimiter(|)modifier(no)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+      ident(mon) operator(=) global_variable($1)operator(.)ident(to_i)
+      ident(mday) operator(=) global_variable($2)operator(.)ident(to_i)
+
+      reserved(if) global_variable($3)
+    ident(year) operator(=) global_variable($3)operator(.)ident(to_i)
+    reserved(if) global_variable($3)operator(.)ident(size) operator(>) integer(2)
+      ident(comp) operator(=) pre_constant(false)
+    reserved(end)
+      reserved(end)
+
+      reserved(if) global_variable($3) operator(&&) global_variable($1)operator(.)ident(size) operator(>) integer(2)
+    ident(comp) operator(=) pre_constant(false)
+    ident(year)operator(,) ident(mon)operator(,) ident(mday) operator(=) ident(mon)operator(,) ident(mday)operator(,) ident(year)
+      reserved(end)
+
+    comment(# ddd)
+    reserved(elsif) ident(str)operator(.)ident(sub!)operator(()
+           regexp<delimiter(/)content(([-+]?\)()char(\\d)content({4,14}\)
+            (?:
+              )char(\\s)content(*
+              T?
+              )char(\\s)content(*
+              ()char(\\d)content({2,6}\)(?:[,.]()char(\\d)content(*\)\)?
+            \)?
+            (?:
+              )char(\\s)content(*
+              (
+            Z
+              |
+            [-+])char(\\d)content({2,4}
+              \)
+              )char(\\b)content(
+            \)?
+           )delimiter(/)modifier(inox)>operator(,)
+           string<delimiter(')content( )delimiter(')>operator(\))
+      reserved(case) global_variable($2)operator(.)ident(size)
+      reserved(when) integer(4)
+    ident(mon)  operator(=) global_variable($2)operator([) integer(0)operator(,) integer(2)operator(])operator(.)ident(to_i)
+    ident(mday) operator(=) global_variable($2)operator([) integer(2)operator(,) integer(2)operator(])operator(.)ident(to_i)
+      reserved(when) integer(6)
+    ident(year) operator(=) operator(()global_variable($1) operator(+) global_variable($2)operator([) integer(0)operator(,) integer(2)operator(])operator(\))operator(.)ident(to_i)
+    ident(mon)  operator(=) global_variable($2)operator([) integer(2)operator(,) integer(2)operator(])operator(.)ident(to_i)
+    ident(mday) operator(=) global_variable($2)operator([) integer(4)operator(,) integer(2)operator(])operator(.)ident(to_i)
+      reserved(when) integer(8)operator(,) integer(10)operator(,) integer(12)operator(,) integer(14)
+    ident(year) operator(=) operator(()global_variable($1) operator(+) global_variable($2)operator([) integer(0)operator(,) integer(4)operator(])operator(\))operator(.)ident(to_i)
+    ident(mon)  operator(=) global_variable($2)operator([) integer(4)operator(,) integer(2)operator(])operator(.)ident(to_i)
+    ident(mday) operator(=) global_variable($2)operator([) integer(6)operator(,) integer(2)operator(])operator(.)ident(to_i)
+    ident(hour) operator(=) global_variable($2)operator([) integer(8)operator(,) integer(2)operator(])operator(.)ident(to_i) reserved(if) global_variable($2)operator(.)ident(size) operator(>)operator(=) integer(10)
+    ident(min)  operator(=) global_variable($2)operator([)integer(10)operator(,) integer(2)operator(])operator(.)ident(to_i) reserved(if) global_variable($2)operator(.)ident(size) operator(>)operator(=) integer(12)
+    ident(sec)  operator(=) global_variable($2)operator([)integer(12)operator(,) integer(2)operator(])operator(.)ident(to_i) reserved(if) global_variable($2)operator(.)ident(size) operator(>)operator(=) integer(14)
+    ident(comp) operator(=) pre_constant(false)
+      reserved(end)
+      reserved(if) global_variable($3)
+    reserved(case) global_variable($3)operator(.)ident(size)
+    reserved(when) integer(2)operator(,) integer(4)operator(,) integer(6)
+      ident(hour) operator(=) global_variable($3)operator([) integer(0)operator(,) integer(2)operator(])operator(.)ident(to_i)
+      ident(min)  operator(=) global_variable($3)operator([) integer(2)operator(,) integer(2)operator(])operator(.)ident(to_i) reserved(if) global_variable($3)operator(.)ident(size) operator(>)operator(=) integer(4)
+      ident(sec)  operator(=) global_variable($3)operator([) integer(4)operator(,) integer(2)operator(])operator(.)ident(to_i) reserved(if) global_variable($3)operator(.)ident(size) operator(>)operator(=) integer(6)
+    reserved(end)
+      reserved(end)
+      reserved(if) global_variable($4)
+    ident(sec_fraction) operator(=) global_variable($4)operator(.)ident(to_i)operator(.)ident(to_r) operator(/) operator(()integer(10)operator(**)global_variable($4)operator(.)ident(size)operator(\))
+      reserved(end)
+      reserved(if) global_variable($5)
+    ident(zone) operator(=) global_variable($5)
+      reserved(end)
+    reserved(end)
+
+    reserved(if) ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\b)content((bc)char(\\b)content(|bce)char(\\b)content(|b)char(\\.)content(c)char(\\.)content(|b)char(\\.)content(c)char(\\.)content(e)char(\\.)content(\))delimiter(/)modifier(ino)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+      reserved(if) ident(year)
+    ident(year) operator(=) operator(-)ident(year) operator(+) integer(1)
+      reserved(end)
+    reserved(end)
+
+    reserved(if) ident(comp) reserved(and) ident(year)
+      reserved(if) ident(year) operator(>)operator(=) integer(0) reserved(and) ident(year) operator(<=) integer(99)
+    reserved(if) ident(year) operator(>)operator(=) integer(69)
+      ident(year) operator(+=) integer(1900)
+    reserved(else)
+      ident(year) operator(+=) integer(2000)
+    reserved(end)
+      reserved(end)
+    reserved(end)
+
+    ident(elem) operator(=) operator({)operator(})
+    ident(elem)operator([)symbol(:year)operator(]) operator(=) ident(year) reserved(if) ident(year)
+    ident(elem)operator([)symbol(:mon)operator(]) operator(=) ident(mon) reserved(if) ident(mon)
+    ident(elem)operator([)symbol(:mday)operator(]) operator(=) ident(mday) reserved(if) ident(mday)
+    ident(elem)operator([)symbol(:hour)operator(]) operator(=) ident(hour) reserved(if) ident(hour)
+    ident(elem)operator([)symbol(:min)operator(]) operator(=) ident(min) reserved(if) ident(min)
+    ident(elem)operator([)symbol(:sec)operator(]) operator(=) ident(sec) reserved(if) ident(sec)
+    ident(elem)operator([)symbol(:sec_fraction)operator(]) operator(=) ident(sec_fraction) reserved(if) ident(sec_fraction)
+    ident(elem)operator([)symbol(:zone)operator(]) operator(=) ident(zone) reserved(if) ident(zone)
+    ident(offset) operator(=) ident(zone_to_diff)operator(()ident(zone)operator(\)) reserved(if) ident(zone)
+    ident(elem)operator([)symbol(:offset)operator(]) operator(=) ident(offset) reserved(if) ident(offset)
+    ident(elem)operator([)symbol(:wday)operator(]) operator(=) ident(wday) reserved(if) ident(wday)
+    ident(elem)
+  reserved(end)
+
+  reserved(def) pre_constant(self)operator(.)ident(zone_to_diff)operator(()ident(str)operator(\))
+    ident(abb)operator(,) ident(dst) operator(=) ident(str)operator(.)ident(downcase)operator(.)ident(split)operator(()regexp<delimiter(/)char(\\s)content(+)delimiter(/)modifier(o)>operator(,) integer(2)operator(\))
+    reserved(if) constant(ZONES)operator(.)ident(include?)operator(()ident(abb)operator(\))
+      ident(offset)  operator(=) constant(ZONES)operator([)ident(abb)operator(])
+      ident(offset) operator(+=) integer(3600) reserved(if) ident(dst)
+    reserved(elsif) regexp<delimiter(/)char(\\A)content(([-+]\)()char(\\d)content({2}\):?()char(\\d)content({2}\)?)char(\\Z)delimiter(/)modifier(no)> operator(=)operator(~) ident(str)
+      ident(offset) operator(=) global_variable($2)operator(.)ident(to_i) operator(*) integer(3600) operator(+) global_variable($3)operator(.)ident(to_i) operator(*) integer(60)
+      ident(offset) operator(*=) integer(-1) reserved(if) global_variable($1) operator(==) string<delimiter(')content(-)delimiter(')>
+    reserved(end)
+    ident(offset)
+  reserved(end)
+
+  reserved(def) method(strftime)operator(()ident(fmt)operator(=)string<delimiter(')content(%F)delimiter(')>operator(\))
+    ident(o) operator(=) string<delimiter(')delimiter(')>
+    ident(fmt)operator(.)ident(scan)operator(()regexp<delimiter(/)content(%[EO]?.|.)delimiter(/)modifier(o)>operator(\)) reserved(do) operator(|)ident(c)operator(|)
+      ident(cc) operator(=) ident(c)operator(.)ident(sub)operator(()regexp<delimiter(/)content(^%[EO]?(.\)$)delimiter(/)modifier(o)>operator(,) string<delimiter(')content(%)char(\\\\)content(1)delimiter(')>operator(\))
+      reserved(case) ident(cc)
+      reserved(when) string<delimiter(')content(%A)delimiter(')>operator(;) ident(o) operator(<<) constant(DAYNAMES)operator([)ident(wday)operator(])
+      reserved(when) string<delimiter(')content(%a)delimiter(')>operator(;) ident(o) operator(<<) constant(ABBR_DAYNAMES)operator([)ident(wday)operator(])
+      reserved(when) string<delimiter(')content(%B)delimiter(')>operator(;) ident(o) operator(<<) constant(MONTHNAMES)operator([)ident(mon)operator(])
+      reserved(when) string<delimiter(')content(%b)delimiter(')>operator(;) ident(o) operator(<<) constant(ABBR_MONTHNAMES)operator([)ident(mon)operator(])
+      reserved(when) string<delimiter(')content(%C)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) operator(()ident(year) operator(/) float(100.0)operator(\))operator(.)ident(floor)        comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%c)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%a %b %e %H:%M:%S %Y)delimiter(')>operator(\))
+      reserved(when) string<delimiter(')content(%D)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%m/%d/%y)delimiter(')>operator(\))            comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%d)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) ident(mday)
+      reserved(when) string<delimiter(')content(%e)delimiter(')>operator(;) ident(o) operator(<<)  string<delimiter(')content(%2d)delimiter(')> operator(%) ident(mday)
+      reserved(when) string<delimiter(')content(%F)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%Y-%m-%d)delimiter(')>operator(\))            comment(# ID)
+      reserved(when) string<delimiter(')content(%G)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%.4d)delimiter(')> operator(%)  ident(cwyear)                comment(# ID)
+      reserved(when) string<delimiter(')content(%g)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) operator(()ident(cwyear) operator(%) integer(100)operator(\))            comment(# ID)
+      reserved(when) string<delimiter(')content(%H)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%)   ident(hour)
+      reserved(when) string<delimiter(')content(%h)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%b)delimiter(')>operator(\))                comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%I)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) operator(()operator(()ident(hour) operator(%) integer(12)operator(\))operator(.)ident(nonzero?) reserved(or) integer(12)operator(\))
+      reserved(when) string<delimiter(')content(%j)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%03d)delimiter(')> operator(%) ident(yday)
+      reserved(when) string<delimiter(')content(%k)delimiter(')>operator(;) ident(o) operator(<<)  string<delimiter(')content(%2d)delimiter(')> operator(%)   ident(hour)                comment(# AR,TZ,GL)
+      reserved(when) string<delimiter(')content(%l)delimiter(')>operator(;) ident(o) operator(<<)  string<delimiter(')content(%2d)delimiter(')> operator(%) operator(()operator(()ident(hour) operator(%) integer(12)operator(\))operator(.)ident(nonzero?) reserved(or) integer(12)operator(\))    comment(# AR,TZ,GL)
+      reserved(when) string<delimiter(')content(%M)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) ident(min)
+      reserved(when) string<delimiter(')content(%m)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) ident(mon)
+      reserved(when) string<delimiter(')content(%n)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(")char(\\n)delimiter(")>                    comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%P)delimiter(')>operator(;) ident(o) operator(<<) reserved(if) ident(hour) operator(<) integer(12) reserved(then) string<delimiter(')content(am)delimiter(')> reserved(else) string<delimiter(')content(pm)delimiter(')> reserved(end)    comment(# GL)
+      reserved(when) string<delimiter(')content(%p)delimiter(')>operator(;) ident(o) operator(<<) reserved(if) ident(hour) operator(<) integer(12) reserved(then) string<delimiter(')content(AM)delimiter(')> reserved(else) string<delimiter(')content(PM)delimiter(')> reserved(end)
+      reserved(when) string<delimiter(')content(%R)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%H:%M)delimiter(')>operator(\))                comment(# ID)
+      reserved(when) string<delimiter(')content(%r)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%I:%M:%S %p)delimiter(')>operator(\))            comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%S)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) ident(sec)
+      reserved(when) string<delimiter(')content(%s)delimiter(')>                            comment(# TZ,GL)
+    ident(d) operator(=) ident(ajd) operator(-) pre_constant(self)operator(.)ident(class)operator(.)ident(jd_to_ajd)operator(()pre_constant(self)operator(.)ident(class)operator(.)ident(civil_to_jd)operator(()integer(1970)operator(,)integer(1)operator(,)integer(1)operator(\))operator(,) integer(0)operator(\))
+    ident(s) operator(=) operator(()ident(d) operator(*) integer(86400)operator(\))operator(.)ident(to_i)
+    ident(o) operator(<<) string<delimiter(')content(%d)delimiter(')> operator(%) ident(s)
+      reserved(when) string<delimiter(')content(%T)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%H:%M:%S)delimiter(')>operator(\))            comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%t)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(")char(\\t)delimiter(")>                    comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%U)delimiter(')>operator(,) string<delimiter(')content(%W)delimiter(')>
+    ident(a) operator(=) pre_constant(self)operator(.)ident(class)operator(.)ident(civil_to_jd)operator(()ident(year)operator(,) integer(1)operator(,) integer(1)operator(,) ident(ns?)operator(\)) operator(+) integer(6)
+    ident(k) operator(=) reserved(if) ident(c) operator(==) string<delimiter(')content(%U)delimiter(')> reserved(then) integer(0) reserved(else) integer(1) reserved(end)
+    ident(w) operator(=) operator(()ident(jd) operator(-) operator(()ident(a) operator(-) operator(()operator(()ident(a) operator(-) ident(k)operator(\)) operator(+) integer(1)operator(\)) operator(%) integer(7)operator(\)) operator(+) integer(7)operator(\)) operator(/) integer(7)
+    ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) ident(w)
+      reserved(when) string<delimiter(')content(%u)delimiter(')>operator(;) ident(o) operator(<<)   string<delimiter(')content(%d)delimiter(')> operator(%) ident(cwday)                comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%V)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) ident(cweek)                comment(# P2,ID)
+      reserved(when) string<delimiter(')content(%v)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%e-%b-%Y)delimiter(')>operator(\))            comment(# AR,TZ)
+      reserved(when) string<delimiter(')content(%w)delimiter(')>operator(;) ident(o) operator(<<)   string<delimiter(')content(%d)delimiter(')> operator(%) ident(wday)
+      reserved(when) string<delimiter(')content(%X)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%H:%M:%S)delimiter(')>operator(\))
+      reserved(when) string<delimiter(')content(%x)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%m/%d/%y)delimiter(')>operator(\))
+      reserved(when) string<delimiter(')content(%Y)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%.4d)delimiter(')> operator(%)  ident(year)
+      reserved(when) string<delimiter(')content(%y)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) operator(()ident(year) operator(%) integer(100)operator(\))
+      reserved(when) string<delimiter(')content(%Z)delimiter(')>operator(;) ident(o) operator(<<) operator(()reserved(if) ident(offset)operator(.)ident(zero?) reserved(then) string<delimiter(')content(Z)delimiter(')> reserved(else) ident(strftime)operator(()string<delimiter(')content(%z)delimiter(')>operator(\)) reserved(end)operator(\))
+      reserved(when) string<delimiter(')content(%z)delimiter(')>                            comment(# ID)
+    ident(o) operator(<<) reserved(if) ident(offset) operator(<) integer(0) reserved(then) string<delimiter(')content(-)delimiter(')> reserved(else) string<delimiter(')content(+)delimiter(')> reserved(end)
+    ident(of) operator(=) ident(offset)operator(.)ident(abs)
+    ident(hh)operator(,) ident(fr) operator(=) ident(of)operator(.)ident(divmod)operator(()integer(1)operator(.)ident(to_r)operator(/)integer(24)operator(\))
+    ident(mm) operator(=) ident(fr) operator(/) operator(()integer(1)operator(.)ident(to_r)operator(/)integer(1440)operator(\))
+    ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) ident(hh)
+    ident(o) operator(<<) string<delimiter(')content(%02d)delimiter(')> operator(%) ident(mm)
+      reserved(when) string<delimiter(')content(%%)delimiter(')>operator(;) ident(o) operator(<<) string<delimiter(')content(%)delimiter(')>
+      reserved(when) string<delimiter(')content(%+)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%a %b %e %H:%M:%S %Z %Y)delimiter(')>operator(\))    comment(# TZ)
+comment(=begin
+      when '%.'
+    o << '%06d' % (sec_fraction / (1.to_r/86400/(10**6\)\)\)
+=end)
+      reserved(when) string<delimiter(')content(%1)delimiter(')>operator(;) ident(o) operator(<<)   string<delimiter(')content(%d)delimiter(')> operator(%) ident(jd)
+      reserved(when) string<delimiter(')content(%2)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%Y-%j)delimiter(')>operator(\))
+      reserved(when) string<delimiter(')content(%3)delimiter(')>operator(;) ident(o) operator(<<) ident(strftime)operator(()string<delimiter(')content(%Y-%m-%d)delimiter(')>operator(\))
+      reserved(else)operator(;)      ident(o) operator(<<) ident(c)
+      reserved(end)
+    reserved(end)
+    ident(o)
+  reserved(end)
+
+comment(# alias_method :format, :strftime)
+
+  reserved(def) method(asctime)operator(()operator(\)) ident(strftime)operator(()string<delimiter(')content(%c)delimiter(')>operator(\)) reserved(end)
+
+  ident(alias_method) symbol(:ctime)operator(,) symbol(:asctime)
+
+reserved(end)
+
+reserved(class) class(DateTime) operator(<) constant(Date)
+
+  reserved(def) pre_constant(self)operator(.)ident(_strptime)operator(()ident(str)operator(,) ident(fmt)operator(=)string<delimiter(')content(%FT%T%Z)delimiter(')>operator(\))
+    reserved(super)operator(()ident(str)operator(,) ident(fmt)operator(\))
+  reserved(end)
+
+  reserved(def) method(strftime)operator(()ident(fmt)operator(=)string<delimiter(')content(%FT%T%Z)delimiter(')>operator(\))
+    reserved(super)operator(()ident(fmt)operator(\))
+  reserved(end)
+
+reserved(end)
+
+ident(require) string<delimiter(')content(generator)delimiter(')>
+ident(a) operator(=) operator([)integer(2)operator(,) integer(3)operator(,) integer(5)operator(,) integer(7)operator(,) integer(11)operator(])
+ident(b) operator(=) string<delimiter(%w#)content(h a l l o)delimiter(#)>
+constant(SyncEnumerator)operator(.)ident(new)operator(()ident(a)operator(,) ident(b)operator(\))operator(.)ident(each) operator({) operator(|)ident(i)operator(,) ident(j)operator(|)
+  ident(puts) string<delimiter(")inline<delimiter(#{)ident(i)delimiter(})>content( & )inline<delimiter(#{)ident(j)delimiter(})>delimiter(")>
+operator(})
+
+reserved(class) class(Signature) operator(<) constant(Array)
+    reserved(def) method(===) ident(x)
+        ident(x)operator(.)ident(kind_of?) constant(Array) reserved(and) ident(zip)operator(()ident(x)operator(\))operator(.)ident(all?) operator({) operator(|)ident(me)operator(,) ident(it)operator(|) ident(me) operator(===) ident(it) operator(})
+    reserved(end)
+reserved(end)
+
+reserved(module) class(Chess)
+
+    constant(BOARD_RANGE) operator(=) integer(1)operator(..)integer(8)
+   
+    reserved(class) class(Position)
+       
+        ident(attr_reader) symbol(:x)operator(,) symbol(:y)
+       
+        reserved(def) method(initialize) operator(*)ident(args)
+            instance_variable(@x)operator(,) instance_variable(@y) operator(=) reserved(case) ident(args)
+            reserved(when) constant(Signature)operator([)constant(Fixnum)operator(,) constant(Fixnum)operator(])
+                ident(args)
+            reserved(when) constant(Signature)operator([)constant(String)operator(])
+                constant(Position)operator(.)ident(decode) ident(args)operator(.)ident(first)
+            reserved(else)
+                ident(raise) constant(ArgumentError)operator(,) string<delimiter(')content(wrong number of arguments(one String or two fixnums\))delimiter(')>
+            reserved(end)
+            ident(raise) constant(RuntimeError)operator(,) string<delimiter(')content(%p is out of the chess board)delimiter(')> operator(%) pre_constant(self) reserved(unless) constant(Position)operator(.)ident(valid?) instance_variable(@x)operator(,) instance_variable(@y)
+        reserved(end)
+   
+        reserved(def) method(inspect)
+            string<delimiter(')content(Position(%p, %p\))delimiter(')> operator(%) operator([)ident(x)operator(,) ident(y)operator(])
+        reserved(end)
+       
+        reserved(def) constant(Position)operator(.)ident(decode) ident(pos)
+            ident(x)operator(,) ident(y) operator(=) ident(pos)operator(.)ident(split)operator(()string<delimiter(')delimiter(')>operator(\))
+            reserved(return) ident(x)operator(.)ident(upcase)operator([)integer(0)operator(]) operator(-) integer(?A) operator(+) integer(1)operator(,) instance_variable(@y) operator(=) ident(y)operator([)integer(0)operator(]) operator(-) integer(?0)
+        reserved(end)
+       
+        reserved(def) constant(Position)operator(.)ident(valid?) ident(x)operator(,) ident(y)
+            constant(BOARD_RANGE)operator(.)ident(include?) ident(x) reserved(and) constant(BOARD_RANGE)operator(.)ident(include?) ident(y)
+        reserved(end)
+    reserved(end)
+   
+reserved(end)
+
+ident(p) constant(Chess)operator(::)constant(Position)operator(.)ident(new)operator(()string<delimiter(')content(H3)delimiter(')>operator(\))
+constant(SuperString) operator(=) constant(Class)operator(.)ident(new) constant(String)
+ident(p) constant(Chess)operator(::)constant(Position)operator(.)ident(new)operator(()constant(SuperString)operator(.)ident(new)operator(()string<delimiter(')content(C5)delimiter(')>operator(\))operator(\))
+ident(p) constant(Chess)operator(::)constant(Position)operator(.)ident(new)operator(()integer(3)operator(,) integer(6)operator(\))
+ident(p) constant(Chess)operator(::)constant(Position)operator(.)ident(new)operator(()integer(3)operator(,) integer(9)operator(\))
+
+ident(require) string<delimiter(')content(grammar)delimiter(')>
+
+reserved(def) method(test_grammars)
+    operator([)string<delimiter(<<EOG1)>operator(,) string<delimiter(<<EOG2)>operator(,) string<delimiter(<<EOG3)>operator(,)operator(])operator(.)ident(map) operator({) operator(|)ident(g)operator(|) constant(Grammar)operator(.)ident(new) ident(g) operator(})string<content(
+Z --> S
+S --> Sb
+S --> bAa
+A --> aSc
+A --> a
+A --> aSb)delimiter(
+EOG1)>string<content(
+
+C --> d
+C --> ABC
+B -->
+B --> c
+A --> B
+A --> a)delimiter(
+EOG2)>string<content(
+
+E - TD
+D - pTD
+D -
+T - FS
+S - uFS
+S -
+F - aEz
+F - i)delimiter(
+EOG3)>
+reserved(end)
+
+global_variable($trace) operator(=) pre_constant(false)
+ident(test_grammars)operator(.)ident(each_with_index) reserved(do) operator(|)ident(g)operator(,) ident(i)operator(|)
+    ident(puts) string<delimiter(")content(Grammar )inline<delimiter(#{)ident(i)delimiter(})>content( is )inline<delimiter(#{)string<delimiter(')content(not )delimiter(')> reserved(if) ident(g)operator(.)ident(ll1?)delimiter(})>content(LL(1\).)delimiter(")>
+reserved(end)
diff --git a/test/scanners/ruby/besetzung.in.rb b/test/scanners/ruby/besetzung.in.rb
new file mode 100644
index 0000000..e226460
--- /dev/null
+++ b/test/scanners/ruby/besetzung.in.rb
diff --git a/test/scanners/ruby/besetzung.out.raydebug b/test/scanners/ruby/besetzung.out.raydebug
new file mode 100644
index 0000000..d65e4fc
--- /dev/null
+++ b/test/scanners/ruby/besetzung.out.raydebug
diff --git a/test/scanners/ruby/class.in.rb b/test/scanners/ruby/class.in.rb
new file mode 100644
index 0000000..b8d0bca
--- /dev/null
+++ b/test/scanners/ruby/class.in.rb
@@ -0,0 +1,83 @@
+$: << File.dirname(__FILE__) + '/..'
+require 'coderay'
+CodeRay::Encoders[:tokens]
+CodeRay::Encoders[:html]
+
+require 'test/unit'
+include Test::Unit
+
+class CodeRaySuite < TestCase
+	
+	def self.dir &block
+		@dir ||= File.dirname(@file)
+		if block
+			Dir.chdir @dir, &block
+		end
+		@dir
+	end
+	
+	def dir &block
+		self.class.dir &block
+	end
+	
+	def extension
+		'in.' + self.class::EXTENSION
+	end
+
+	def lang
+		self.class::LANG
+	end
+
+	def test_ALL
+		CodeRay::Scanners.load lang
+		tokenizer = CodeRay.tokens
+		highlighter = CodeRay.html
+		
+		dir do
+			for input in Dir["*.#{extension}"]
+				name = File.basename(input, ".#{extension}")
+				output = name + '.out.tok'
+				code = File.read(input)
+
+				computed = tokenizer.encode code, lang
+				
+				if File.exist? output
+					expected = File.read output
+					assert_equal(expected, computed)
+				else
+					File.open(output, 'w') do |f| f.write computed end
+					puts "New test: #{output}"
+				end
+
+				highlighted = highlighter.highlight_page code, lang
+				File.open(name + '.html', 'w') do |f| f.write highlighted end	
+			end
+		end
+	end
+
+end
+
+require 'test/unit/testsuite'
+$suite = TestSuite.new
+
+def load_suite name
+	begin
+		require name + '/suite.rb'
+	rescue LoadError
+		$stderr.puts <<-ERR
+
+!! Folder #{File.split(__FILE__).first + '/' + name} not found
+		
+		ERR
+		false
+	end
+end
+
+if subsuite = ARGV.first
+	load_suite(subsuite) or exit
+else
+	Dir['*/'].each { |suite| load_suite suite }
+end
+
+require 'test/unit/ui/console/testrunner'
+UI::Console::TestRunner.run $suite
diff --git a/test/scanners/ruby/class.out.raydebug b/test/scanners/ruby/class.out.raydebug
new file mode 100644
index 0000000..af7a63a
--- /dev/null
+++ b/test/scanners/ruby/class.out.raydebug
@@ -0,0 +1,83 @@
+global_variable($:) operator(<<) constant(File)operator(.)ident(dirname)operator(()pre_constant(__FILE__)operator(\)) operator(+) string<delimiter(')content(/..)delimiter(')>
+ident(require) string<delimiter(')content(coderay)delimiter(')>
+constant(CodeRay)operator(::)constant(Encoders)operator([)symbol(:tokens)operator(])
+constant(CodeRay)operator(::)constant(Encoders)operator([)symbol(:html)operator(])
+
+ident(require) string<delimiter(')content(test/unit)delimiter(')>
+ident(include) constant(Test)operator(::)constant(Unit)
+
+reserved(class) class(CodeRaySuite) operator(<) constant(TestCase)
+	
+	reserved(def) pre_constant(self)operator(.)ident(dir) operator(&)ident(block)
+		instance_variable(@dir) operator(||=) constant(File)operator(.)ident(dirname)operator(()instance_variable(@file)operator(\))
+		reserved(if) ident(block)
+			constant(Dir)operator(.)ident(chdir) instance_variable(@dir)operator(,) operator(&)ident(block)
+		reserved(end)
+		instance_variable(@dir)
+	reserved(end)
+	
+	reserved(def) method(dir) operator(&)ident(block)
+		pre_constant(self)operator(.)ident(class)operator(.)ident(dir) operator(&)ident(block)
+	reserved(end)
+	
+	reserved(def) method(extension)
+		string<delimiter(')content(in.)delimiter(')> operator(+) pre_constant(self)operator(.)ident(class)operator(::)constant(EXTENSION)
+	reserved(end)
+
+	reserved(def) method(lang)
+		pre_constant(self)operator(.)ident(class)operator(::)constant(LANG)
+	reserved(end)
+
+	reserved(def) method(test_ALL)
+		constant(CodeRay)operator(::)constant(Scanners)operator(.)ident(load) ident(lang)
+		ident(tokenizer) operator(=) constant(CodeRay)operator(.)ident(tokens)
+		ident(highlighter) operator(=) constant(CodeRay)operator(.)ident(html)
+		
+		ident(dir) reserved(do)
+			reserved(for) ident(input) reserved(in) constant(Dir)operator([)string<delimiter(")content(*.)inline<delimiter(#{)ident(extension)delimiter(})>delimiter(")>operator(])
+				ident(name) operator(=) constant(File)operator(.)ident(basename)operator(()ident(input)operator(,) string<delimiter(")content(.)inline<delimiter(#{)ident(extension)delimiter(})>delimiter(")>operator(\))
+				ident(output) operator(=) ident(name) operator(+) string<delimiter(')content(.out.tok)delimiter(')>
+				ident(code) operator(=) constant(File)operator(.)ident(read)operator(()ident(input)operator(\))
+
+				ident(computed) operator(=) ident(tokenizer)operator(.)ident(encode) ident(code)operator(,) ident(lang)
+				
+				reserved(if) constant(File)operator(.)ident(exist?) ident(output)
+					ident(expected) operator(=) constant(File)operator(.)ident(read) ident(output)
+					ident(assert_equal)operator(()ident(expected)operator(,) ident(computed)operator(\))
+				reserved(else)
+					constant(File)operator(.)ident(open)operator(()ident(output)operator(,) string<delimiter(')content(w)delimiter(')>operator(\)) reserved(do) operator(|)ident(f)operator(|) ident(f)operator(.)ident(write) ident(computed) reserved(end)
+					ident(puts) string<delimiter(")content(New test: )inline<delimiter(#{)ident(output)delimiter(})>delimiter(")>
+				reserved(end)
+
+				ident(highlighted) operator(=) ident(highlighter)operator(.)ident(highlight_page) ident(code)operator(,) ident(lang)
+				constant(File)operator(.)ident(open)operator(()ident(name) operator(+) string<delimiter(')content(.html)delimiter(')>operator(,) string<delimiter(')content(w)delimiter(')>operator(\)) reserved(do) operator(|)ident(f)operator(|) ident(f)operator(.)ident(write) ident(highlighted) reserved(end)	
+			reserved(end)
+		reserved(end)
+	reserved(end)
+
+reserved(end)
+
+ident(require) string<delimiter(')content(test/unit/testsuite)delimiter(')>
+global_variable($suite) operator(=) constant(TestSuite)operator(.)ident(new)
+
+reserved(def) method(load_suite) ident(name)
+	reserved(begin)
+		ident(require) ident(name) operator(+) string<delimiter(')content(/suite.rb)delimiter(')>
+	reserved(rescue) constant(LoadError)
+		global_variable($stderr)operator(.)ident(puts) string<delimiter(<<-ERR)>string<content(
+
+!! Folder )inline<delimiter(#{)constant(File)operator(.)ident(split)operator(()pre_constant(__FILE__)operator(\))operator(.)ident(first) operator(+) string<delimiter(')content(/)delimiter(')> operator(+) ident(name)delimiter(})>content( not found
+		)delimiter(
+		ERR)>
+		pre_constant(false)
+	reserved(end)
+reserved(end)
+
+reserved(if) ident(subsuite) operator(=) pre_constant(ARGV)operator(.)ident(first)
+	ident(load_suite)operator(()ident(subsuite)operator(\)) reserved(or) ident(exit)
+reserved(else)
+	constant(Dir)operator([)string<delimiter(')content(*/)delimiter(')>operator(])operator(.)ident(each) operator({) operator(|)ident(suite)operator(|) ident(load_suite) ident(suite) operator(})
+reserved(end)
+
+ident(require) string<delimiter(')content(test/unit/ui/console/testrunner)delimiter(')>
+constant(UI)operator(::)constant(Console)operator(::)constant(TestRunner)operator(.)ident(run) global_variable($suite)
diff --git a/test/scanners/ruby/comment.in.rb b/test/scanners/ruby/comment.in.rb
new file mode 100644
index 0000000..d0dea65
--- /dev/null
+++ b/test/scanners/ruby/comment.in.rb
@@ -0,0 +1,17 @@
+=begin test
+=end test
+
+bla
+
+ =begin
+
+ __END__
+
+
+__END__
+#CODE
+
+mangawobeegee
+
+#test\
+dasd
diff --git a/test/scanners/ruby/comment.out.raydebug b/test/scanners/ruby/comment.out.raydebug
new file mode 100644
index 0000000..0e24ae3
--- /dev/null
+++ b/test/scanners/ruby/comment.out.raydebug
@@ -0,0 +1,17 @@
+comment(=begin test
+=end test)
+
+ident(bla)
+
+ operator(=)reserved(begin)
+
+ ident(__END__)
+
+
+comment(__END__
+)comment(#CODE)
+
+ident(mangawobeegee)
+
+comment(#test\\)
+ident(dasd)
diff --git a/test/scanners/ruby/diffed.in.rb b/test/scanners/ruby/diffed.in.rb
new file mode 100644
index 0000000..a1deb0f
--- /dev/null
+++ b/test/scanners/ruby/diffed.in.rb
@@ -0,0 +1,30 @@
+## example diff [diff]
+Index: /Users/jgoebel/rails/pastie/app/controllers/pastes_controller.rb
+===================================================================
+--- /Users/jgoebel/rails/pastie/app/controllers/pastes_controller.rb  (revision 1431)
++++ /Users/jgoebel/rails/pastie/app/controllers/pastes_controller.rb  (revision 1437)
+@@ -1,6 +1,10 @@
++require 'login_system'
+ require 'coderay'
+ 
+ class PastesController < ApplicationController
++  include LoginSystem
++
++  before_filter :attempt_cookie_login
+ 
+ #  caches_action :recent
+ 
+@@ -10,11 +14,7 @@
+ 
+   def show
+     @paste = Paste.find(params[:id])
+-    if params[:key] and params[:key]==User.new(@paste.nick).magic_mojo
+-        session[:login]=@paste.nick
+-        return redirect_to(:action => 'show', :id => @paste.id)
+-    end
+-    
++    attempt_key_login if not logged_in?
+     unless @paste.asset or not @paste.body.blank?
+       render :action => "edit"
+     end
+
diff --git a/test/scanners/ruby/diffed.out.raydebug b/test/scanners/ruby/diffed.out.raydebug
new file mode 100644
index 0000000..8881649
--- /dev/null
+++ b/test/scanners/ruby/diffed.out.raydebug
@@ -0,0 +1,30 @@
+comment(## example diff [diff])
+constant(Index)operator(:) regexp<delimiter(/)content(Users)delimiter(/)>ident(jgoebel)operator(/)ident(rails)operator(/)ident(pastie)operator(/)ident(app)operator(/)ident(controllers)operator(/)ident(pastes_controller)operator(.)ident(rb)
+operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(===)operator(=)
+operator(-)operator(-)operator(-) regexp<delimiter(/)content(Users)delimiter(/)>ident(jgoebel)operator(/)ident(rails)operator(/)ident(pastie)operator(/)ident(app)operator(/)ident(controllers)operator(/)ident(pastes_controller)operator(.)ident(rb)  operator(()ident(revision) integer(1431)operator(\))
+operator(+)operator(+)operator(+) regexp<delimiter(/)content(Users)delimiter(/)>ident(jgoebel)operator(/)ident(rails)operator(/)ident(pastie)operator(/)ident(app)operator(/)ident(controllers)operator(/)ident(pastes_controller)operator(.)ident(rb)  operator(()ident(revision) integer(1437)operator(\))
+error(@)error(@) integer(-1)operator(,)integer(6) integer(+1)operator(,)integer(10) error(@)error(@)
+operator(+)ident(require) string<delimiter(')content(login_system)delimiter(')>
+ ident(require) string<delimiter(')content(coderay)delimiter(')>
+ 
+ reserved(class) class(PastesController) operator(<) constant(ApplicationController)
+operator(+)  ident(include) constant(LoginSystem)
+operator(+)
+operator(+)  ident(before_filter) symbol(:attempt_cookie_login)
+ 
+ comment(#  caches_action :recent)
+ 
+error(@)error(@) integer(-10)operator(,)integer(11) integer(+14)operator(,)integer(7) error(@)error(@)
+ 
+   reserved(def) method(show)
+     instance_variable(@paste) operator(=) constant(Paste)operator(.)ident(find)operator(()ident(params)operator([)symbol(:id)operator(])operator(\))
+operator(-)    reserved(if) ident(params)operator([)symbol(:key)operator(]) reserved(and) ident(params)operator([)symbol(:key)operator(])operator(==)constant(User)operator(.)ident(new)operator(()instance_variable(@paste)operator(.)ident(nick)operator(\))operator(.)ident(magic_mojo)
+operator(-)        ident(session)operator([)symbol(:login)operator(])operator(=)instance_variable(@paste)operator(.)ident(nick)
+operator(-)        reserved(return) ident(redirect_to)operator(()symbol(:action) operator(=)operator(>) string<delimiter(')content(show)delimiter(')>operator(,) symbol(:id) operator(=)operator(>) instance_variable(@paste)operator(.)ident(id)operator(\))
+operator(-)    reserved(end)
+operator(-)    
+operator(+)    ident(attempt_key_login) reserved(if) reserved(not) ident(logged_in?)
+     reserved(unless) instance_variable(@paste)operator(.)ident(asset) reserved(or) reserved(not) instance_variable(@paste)operator(.)ident(body)operator(.)ident(blank?)
+       ident(render) symbol(:action) operator(=)operator(>) string<delimiter(")content(edit)delimiter(")>
+     reserved(end)
+
diff --git a/test/scanners/ruby/evil.in.rb b/test/scanners/ruby/evil.in.rb
new file mode 100644
index 0000000..877a586
--- /dev/null
+++ b/test/scanners/ruby/evil.in.rb
@@ -0,0 +1,1123 @@
+p(String *Class)
+class String
+class Class
+end
+end
+#def String(x) x.to_s end #it's already built-in. duh!
+def String.*(right) [self,right] end
+def String.<<(right) [self,:<<,right] end
+def String./(right) [self,:/,right] end
+def String.[](right) [self,:[],right] end
+p(String::Class)
+p(String:: Class)
+p(String ::Class)
+p(String :: Class)
+p(String<<Class)
+p(String<< Class)
+p(String <<Class) 
+sgsdfgf
+Class
+p(String << Class)
+p(String/Class)
+p(String/ Class)
+p(String /Class/) 
+p(String / Class) #borken
+p(String[Class])
+p(String[ Class])
+p(String [Class]) 
+p(String [ Class]) 
+p(String*Class)
+p(String* Class)
+p(String *Class) 
+p(String * Class)
+class <<String
+undef :*,<<,/,[]
+end
+
+
+
+p(false::to_s)
+p(false ::to_s)
+p(false:: to_s)
+p(false :: to_s)
+
+class C2
+class <<self
+  def self.p8; p 8 end
+  alias p? p
+  alias P? p
+  alias [] p
+  alias <=> p
+end
+
+q=9
+Q=99
+
+p:p8
+false ? p: p8
+p :p8
+false ? p : p8
+
+false ? q:p8
+false ? q: p8
+false ? q :p8
+false ? q : p8
+
+#false ? Q:p8  #gives ruby indigestion
+false ? Q: p8
+#false ? Q :p8  #gives ruby indigestion
+false ? Q : p8
+
+p?:p8
+false ? p?: p8
+p? :p8
+false ? p? : p8
+
+P?:p8
+false ? P?: p8
+P? :p8
+false ? P? : p8
+
+self.[]:p8
+false ? self.[]: p8
+self.[] :p8
+false ? self.[] : p8
+
+self.<=>:p8
+false ? self.<=>: p8
+self.<=> :p8
+false ? self.<=> : p8
+
+self <=>:p8
+#false ? self <=>: p8  #gives ruby indigestion
+self <=> :p8
+#false ? self <=> : p8  #gives ruby indigestion
+end
+
+p <<stuff+'foobar'.tr('j-l','d-f')
+"more stuff"
+12345678
+the quick brown fox jumped over the lazy dog
+stuff
+
+
+p <<p
+sdfsfdf^^^^@@@
+p
+mix=nil
+p / 5/mix
+
+module M33
+  p="var:"
+  Q="func:"
+  def Q.method_missing(name,*args)
+    self+name.to_s+(args.join' ')
+  end
+  def p.method_missing(name,*args)
+    self+name.to_s+(args.join' ')
+  end
+  def self.p(*a); super; Q end
+  @a=1
+  $a=2
+  
+  p(p~6)
+  p(p ~6)
+  p(p~ 6)
+  p(p ~ 6)
+  p(p*11)
+  p(p *11)
+  p(p* 11)
+  p(p * 11)
+  p(p&proc{})
+  p(p &proc{})
+  p(p& proc{})
+  p(p & proc{})
+  p(p !1)
+#  p(p ?1) #compile error, when p is var
+  p(p ! 1)
+  p(p ? 1 : 6)
+  p(p@a)
+  p(p @a)
+#  p(p@ a)  #wont
+#  p(p @ a) #work 
+  p(p#a
+)
+  p(p #a
+)
+  p(p# a
+)
+  p(p # a
+)
+  p(p$a)
+  p(p $a)
+#  p(p$ a)  #wont
+#  p(p $ a) #work
+  p(p%Q{:foo})
+  p(p %Q{:foo})
+  p(p% Q{:foo})
+  p(p % Q{:foo})
+  p(p^6)
+  p(p ^6)
+  p(p^ 6)
+  p(p ^ 6)
+  p(p&7)
+  p(p &proc{7})
+  p(p& 7)
+  p(p & 7)
+  p(p(2))
+  p(p (2))
+  p(p( 2))
+  p(p ( 2))
+  p(p(p))
+  p(p())
+  p(p (p))
+  p(p ())
+  p(p ( p))
+  p(p ( ))
+  p(p( p))
+  p(p( ))
+  p(p)
+  p((p))
+  p(p )
+  p((p ))
+  p((p p))
+  p((p p,p))
+  p((p p))
+  p((p p,p))
+  p(p-0)
+  p(p -0)
+  p(p- 0)
+  p(p - 0)
+  p(p+9)
+  p(p +9)
+  p(p+ 9)
+  p(p + 9)
+  p(p[1])
+  p(p [1])
+  p(p[ 1])
+  p(p [ 1])
+  p(p{1})
+  p(p {1})
+  p(p{ 1})
+  p(p { 1})
+  p(p/1)
+  p(p /22)
+  p(p/ 1)
+  p(p / 22)
+  p(p._)
+  p(p ._)
+  p(p. _)
+  p(p . _)
+  p(false ? p:f)
+  p(false ? p :f)
+  p(false ? p: f)
+  p(false ? p : f)
+  p((p;1))
+  p((p ;1))
+  p((p; 1))
+  p((p ; 1))
+  p(p<1)
+  p(p <1)
+  p(p< 1)
+  p(p < 1)
+  p(p<<1)
+  p(p <<1)
+  p(p<< 1)
+  p(p << 1)
+  p(p'j')
+  p(p 'j')
+  p(p' j')
+  p(p ' j')
+  p(p"k")
+  p(p "k")
+  p(p" k")
+  p(p " k")
+  p(p|4)
+  p(p |4)
+  p(p| 4)
+  p(p | 4)
+  p(p>2)
+  p(p >2)
+  p(p> 2)
+  p(p > 2)
+  
+end
+
+module M34
+  p(p~6)
+  p(p ~6)
+  p(p~ 6)
+  p(p ~ 6)
+  p(p*[1])
+  p(p *[1])
+  p(p* [1])
+  p(p * [1])
+  p(p&proc{})
+  p(p &proc{})
+  p(p& proc{})
+  p(p & proc{})
+  p(p !1)
+  p(p ?1)
+  p(p ! 1)
+  p(p ? 1 : 6)
+  p(p@a)
+  p(p @a)
+#  p(p@ a)  #wont
+#  p(p @ a) #work 
+
+  p(p#a
+)
+  p(p #a
+)
+  p(p# a
+)
+  p(p # a
+)
+  p(p$a)
+  p(p $a)
+#  p(p$ a)  #wont
+#  p(p $ a) #work
+  p(p%Q{:foo})
+  p(p %Q{:foo})
+  p(p% Q{:foo})
+  p(p % Q{:foo})
+  p(p^6)
+  p(p ^6)
+  p(p^ 6)
+  p(p ^ 6)
+  p(p&7)
+  p(p &proc{7})
+  p(p& 7)
+  p(p & 7)
+  p(p(2))
+  p(p (2))
+  p(p( 2))
+  p(p ( 2))
+  p(p(p))
+  p(p())
+  p(p (p))
+  p(p ())
+  p(p ( p))
+  p(p ( ))
+  p(p( p))
+  p(p( ))
+  p(p)
+  p((p))
+  p(p )
+  p((p ))
+  p((p p))
+  p((p p,p))
+  p((p p))
+  p((p p,p))
+  p(p-0)
+  p(p -1)
+  p(p- 0)
+  p(p - 0)
+  p(p+9)
+  p(p +9)
+  p(p+ 9)
+  p(p + 9)
+  p(p[1])
+  p(p [1])
+  p(p[ 1])
+  p(p [ 1])
+  p(p{1})
+  p(p {1})
+  p(p{ 1})
+  p(p { 1})
+  p(p/1)
+  p(p /22/)
+  p(p/ 1)
+  p(p / 22)
+  p(p._)
+  p(p ._)
+  p(p. _)
+  p(p . _)
+  p(p:f)
+  p(p :f)
+  p(false ? p: f)
+  p(false ? p : f)
+  p((p;1))
+  p((p ;1))
+  p((p; 1))
+  p((p ; 1))
+  p(p<1)
+  p(p <1)
+  p(p< 1)
+  p(p < 1)
+  p(p<<1)
+  p(p <<1)
+foobar
+1
+  p(p<< 1)
+  p(p << 1)
+  p(p'j')
+  p(p 'j')
+  p(p' j')
+  p(p ' j')
+  p(p"k")
+  p(p "k")
+  p(p" k")
+  p(p " k")
+  p(p|4)
+  p(p |4)
+  p(p| 4)
+  p(p | 4)
+  p(p>2)
+  p(p >2)
+  p(p> 2)
+  p(p > 2)
+  
+end
+
+
+def bob(x) x end
+def bill(x) x end
+p(bob %(22))
+for bob in [100] do p(bob %(22)) end
+p(bob %(22))
+def %(n) to_s+"%#{n}" end
+p(bill %(22))
+begin sdjkfsjkdfsd; rescue Object => bill; p(bill %(22)) end
+p(bill %(22))
+undef %
+
+class Object
+
+public :`
+def `(s)
+  print "bq: #{s}\n"
+end
+end
+
+69.`('what a world')
+
+79::`('what a word')
+
+p :`
+
+p{}
+p {}
+a=5
+p p +5
+p a +5
+
+def nil.+(x) ~x end
+def nil.[](*x) [x] end
+p( p + 5 )
+p( p +5 )
+p( p+5 )
+p( p[] )
+p( p [] )
+p( p [ ] )
+class NilClass; undef +,[] end
+
+class Foou
+ public
+ def [] x=-100,&y; p x; 100 end
+end
+a0=8
+p Foou.new.[]!false  #value
+p Foou.new.[] !false #value
+p Foou.new.[]~9      #value
+p Foou.new.[] ~9     #value
+p Foou.new.[]-9      #op
+p Foou.new.[]+9      #op
+p Foou.new.[] -9     #value
+p Foou.new.[] +9     #value
+p Foou.new.[]<<9     #op
+p Foou.new.[] <<9    #value
+foobar
+9
+p Foou.new.[]%9      #op
+p Foou.new.[]/9      #op
+p Foou.new.[] %(9)   #value
+p Foou.new.[] /9/    #value
+p Foou.new.[]$9      #value
+p Foou.new.[]a0      #value
+p Foou.new.[] $9     #value
+p Foou.new.[] a0     #value
+p Foou.new.[]{9}     #lambda (op)
+p Foou.new.[] {9}    #lambda (op)
+
+if p then p end
+
+p({:foo=>:bar})   #why does this work? i'd think that ':foo=' would be 1 token
+p   EMPTY = 0
+p   BLACK = 1
+p   WHITE = - BLACK
+
+ a=b=c=0
+  a ? b:c
+  a ?b:c
+
+  p(a ? b:c)
+  p(a ?b:c)
+
+
+p~4
+p:f
+p(~4){}
+p(:f){}
+h={}
+h.default=:foo
+
+p def (h="foobar").default= v; p @v=v;v end
+p h
+
+p h.default=:b
+
+x, (*y) = [:x, :y, :z]
+p x
+p y
+
+x, *y = [:x, :y, :z]
+p x
+p y
+
+x, * = [:x, :y, :z]
+p x
+
+
+
+p Array("foo\nbar")
+
+
+
+p +(4)
+p -(4)
+
+p :'\\'
+
+class Foop
+  def Foop.bar a,b
+    p a,b
+  end
+end
+Foop.bar 1,2
+Foop::bar 3,4
+
+
+class Foop
+  def Foop::baz a,b
+    p :baz,a,b
+  end
+end
+Foop.baz 5,6
+Foop::baz 7,8
+
+
+
+without_creating=widgetname=nil
+      if without_creating && !widgetname #foo
+        fail ArgumentError,
+             "if set 'without_creating' to true, need to define 'widgetname'"
+      end
+
+
+
+=begin disable for now
+
+#class, module, and def should temporarily hide local variables
+def mopsdfjskdf arg; arg*2 end
+mopsdfjskdf=5
+ class C
+ p mopsdfjskdf %(3)    #calls method
+ end
+
+module M
+ p mopsdfjskdf %(4)    #calls method
+end
+
+ def d
+ p mopsdfjskdf %(5)    #calls method
+ end
+p d
+p mopsdfjskdf %(6)     #reads variable
+p proc{mopsdfjskdf %(7)}[] #reads variable
+
+#fancy symbols not supported yet
+p %s{symbol}
+=end
+
+#multiple assignment test
+proc {
+  a,b,c,d,e,f,g,h,i,j,k=1,2,3,4,5,6,7,8,9,10,11
+  p(b %(c))
+  p(a %(c))
+  p(k %(c))
+  p(p %(c))
+}.call
+
+
+=begin disable for now
+p "#{<<kekerz}#{"foob"
+zimpler
+kekerz
+}"
+
+
+aaa=<<whatnot; p "#{'uh,yeah'
+gonna take it down, to the nitty-grit
+gonna tell you mother-fuckers why you ain't shit
+cause suckers like you just make me strong
+whatnot
+}"
+p aaa
+
+#test variable creation in string inclusion
+#currently broken because string inclusions
+#are lexed by a separate lexer!
+proc {
+  p "jentawz: #{baz=200}"
+  p( baz %(9))
+}.call
+=end
+
+=begin ought to work...ruby doesn't like
+class A
+class B
+class C
+end
+end
+end
+def A::B::C::d() :abcd end
+def A::B::d() :abd end   #this used to work as well... i think
+
+def nil.d=; end #this works
+def (;).d=; end
+def ().d=; end
+p def (p h="foobar";).default= v; p @v=v;v end
+p def (p h="foobar";h).default= v; p @v=v;v end
+
+p~4{}
+p:f{}
+p ~4{}
+p :f{}
+
+def g a=:g; [a] end
+g g g  #this works
+g *g   #this works
+g *g g #this doesn't
+
+[nil,p 5]
+"foo"+[1].join' '
+
+class Fook
+def foo; end
+
+
+#these work:
+(not true)
+p(!true) #etc
+(true if false) #etc
+(true and false) #etc
+(undef foo)
+(alias bar foo)
+(BEGIN{p :yyy})
+
+#these don't:
+p(not true)
+p(true if false) #etc
+p(true and false) #etc
+p(undef foo)
+p(alias bar foo)
+p(BEGIN{p :yyy})
+end
+
+=end
+
+proc {
+}
+
+p "#{<<foobar3}"
+bim
+baz
+bof
+foobar3
+
+def func
+  a,b,* = [1,2,3,4,5,6,7,8]
+  p a,b
+  a,b, = [1,2,3,4,5,6,7,8]
+  p a,b
+
+  a,b = [1,2,3,4,5,6,7,8]
+  p a,b
+  a,*b = [1,2,3,4,5,6,7,8]
+  p a,b
+
+  a,b,*c=[1,2,3,4,5,6,7,8]
+  a,b,* c=[1,2,3,4,5,6,7,8]
+end
+func
+
+
+p( %r{\/$})
+p( %r~<!include:([\/\w\.\-]+)>~m)
+
+p <<end
+#{compile_body}\
+#{outvar}
+end
+
+
+
+
+
+proc {
+  h={:a=>(foo=100)}
+  p( foo %(5))
+}.call
+
+
+p "#{<<foobar3}"
+bim
+baz
+bof
+foobar3
+
+p "#{<<foobar2
+bim
+baz
+bof
+foobar2
+}"
+
+p <<one ; p "#{<<two}"
+1111111111111111
+fdsgdfgdsfffff
+one
+2222222222222222
+sdfasdfasdfads
+two
+p "#{<<foobar0.each('|'){|s| '\nthort: '+s} }"
+jbvd|g4543ghb|!@G$dfsd|fafr|e
+|s4e5rrwware|BBBBB|*&^(*&^>"PMK:njs;d|
+
+foobar0
+
+p "#{<<foobar1.each('|'){|s| '\nthort: '+s}
+jbvd|g4543ghb|!@G$dfsd|fafr|e
+|s4e5rrwware|BBBBB|*&^(*&^>"PMK:njs;d|
+
+foobar1
+}"
+
+def foo(a=<<a,b=<<b,c=<<c)
+jfksdkjf
+dkljjkf
+a
+kdljfjkdg
+dfglkdfkgjdf
+dkf
+b
+lkdffdjksadhf
+sdflkdjgsfdkjgsdg
+dsfg;lkdflisgffd
+g
+c
+
+   a+b+c
+
+end
+p foo
+
+
+
+$a=1
+@b=2
+@@c=3
+p "#$a #@b #@@c #{$a+@b+@@c}"
+p "\#$a \#@b \#@@c \#{$a+@b+@@c}"
+p '#$a #@b #@@c #{$a+@b+@@c}'
+p '\#$a \#@b \#@@c \#{$a+@b+@@c}'
+p %w"#$a #@b #@@c #{$a+@b+@@c}"
+p %w"\#$a \#@b \#@@c \#{$a+@b+@@c}"
+p %W"#$a #@b #@@c #{$a+@b+@@c}"
+p %W"\#$a \#@b \#@@c \#{$a+@b+@@c}"
+p %Q[#$a #@b #@@c #{$a+@b+@@c}]
+p %Q[\#$a \#@b \#@@c \#{$a+@b+@@c}]
+p `echo #$a #@b #@@c #{$a+@b+@@c}`
+p `echo \#$a \#@b \#@@c \#{$a+@b+@@c}`
+p(/#$a #@b #@@c #{$a+@b+@@c}/)
+#p(/\#$a \#@b \#@@c \#{$a+@b+@@c}/) #moved to w.rb
+
+class AA; class BB; class CC
+FFOO=1
+end end end
+
+p AA::BB::CC::FFOO
+
+compile_body=outvar='foob'
+
+if false
+ method_src = c.compile(template, (HtmlCompiler::AnyData.new)).join("\n") +
+    "\n# generated by PartsTemplate::compile_partstemplate at #{Time.new}\n"
+ rescu -1
+end
+
+  p('rb_out', 'args', <<-'EOL')
+    regsub -all {!} $args {\\!} args
+    regsub -all "{" $args "\\{" args
+    if {[set st [catch {ruby [format "TkCore.callback %%Q!%s!" $args]} ret]] != 0} {
+        return -code $st $ret
+    } {
+        return $ret
+    }
+  EOL
+
+def add(*args)
+   self.<<(*args)
+end
+
+
+
+val=%[13,17,22,"hike", ?\s]
+    if val.include? ?\s
+      p val.split.collect{|v| (v)}
+    end
+p "#{}"
+p "#(1)"
+class Hosts
+end
+class DNS < Hosts
+end
+def intialize(resolvers=[Hosts.new, DNS.new]) end
+def environment(env = File.basename($0, '.*')) end
+
+def ssssss &block
+end
+def params_quoted(field_name, default)
+  if block_given? then yield field_name else default end
+end
+def ==(o) 444 end
+def String.ffff4() self.to_s+"ffff" end
+
+p *[]
+for i in \
+[44,55,66,77,88] do p i**Math.sqrt(i) end
+
+#(
+for i in if
+false then foob12345; else [44,55,66,77,88] end do p i**Math.sqrt(i) end
+#)
+(
+for i in if false then
+foob12345; else [44,55,66,77,88] end do p i**Math.sqrt(i) end
+
+c=j=0
+until while j<10 do j+=1 end.nil? do p 'pppppppppp' end
+for i in if false then foob12345;
+else [44,55,66,77,88] end do p i**Math.sqrt(i) end
+
+for i in if false then foob12345; else
+[44,55,66,77,88] end do p i**Math.sqrt(i) end
+
+
+for i in (c;
+[44,55,66,77,88]) do p i**Math.sqrt(i) end
+)
+(
+
+for i in (begin
+[44,55,66,77,88] end) do p i**Math.sqrt(i) end
+
+for i in if false then foob12345; else
+[44,55,66,77,88] end do p i**Math.sqrt(i) end
+
+for i in (
+
+[44,55,66,77,88]) do p i**Math.sqrt(i) end
+
+for i in (
+[44,55,66,77,88]) do p i**Math.sqrt(i) end
+
+)
+
+
+def yy;yield end
+
+block=proc{p "blah  blah"}
+
+yy &block
+p(1.+1)
+p pppp
+
+module M66
+p(proc do
+   p=123
+end.call)
+
+p proc {
+   p=123
+}.call
+
+p def pppp
+   p=123
+end
+p module Ppp
+   p=123
+end
+p class Pppp < String
+   p=123
+end
+end
+
+    def _make_regex(str) /([#{Regexp.escape(str)}])/n end
+p _make_regex("8smdf,34rh\#@\#$%$gfm/[]dD")
+
+
+p "#$a #@b #@@c
+
+d e f
+#$a #@b #@@c
+"
+
+p "\""
+
+a=a.to_s
+class <<a
+  def foobar
+     self*101
+  end
+  alias    eql?    ==
+end
+
+p a.foobar
+
+p(/^\s*(([+-\/*&\|^]|<<|>>|\|\||\&\&)=|\&\&|\|\|)/)
+p(:%)
+p( { :class => class_=0})
+p cls_name = {}[:class]
+
+
+p foo
+p "#{$!.class}"
+p :p
+p(:p)
+p(:"[]")
+p :"[]"
+p("\\")
+p(/\\/)
+p(/[\\]/)
+p 0x80
+p ?p
+p 0.1
+p 0.8
+p 0.9
+p(-1)
+p %/p/
+p %Q[<LI>]
+i=99
+p %Q[<LI><A HREF="#{i[3]}.html\##{i[4]}">#{i[0]+i[1]+(i[2])}</A>\n]
+p(:side=>:top)
+p %w[a b c
+     d e f]
+p %w[a b c\n
+     d e f]
+p %w[\\]
+p %w[\]]
+p :+
+p 99 / 3
+
+a=99;b=3
+p 1+(a / b)
+p %Q[\"]
+p %Q[ some [nested] text]
+
+if false
+     formatter.format_element(element) do
+       amrita_expand_and_format1(element, context, formatter)
+     end
+end
+if false
+ ret = <<-END
+ @@parts_template = #{template.to_ruby}
+ def parts_template
+   @@parts_template
+ end
+
+ #{c.const_def_src.join("\n")}
+ def amrita_expand_and_format(element, context, formatter)
+   if element.tagname_symbol == :span and element.attrs.size == 0
+     amrita_expand_and_format1(element, context, formatter)
+   else
+     formatter.format_element(element) do
+       amrita_expand_and_format1(element, context, formatter)
+     end
+   end
+ end
+
+ def amrita_expand_and_format1(element, context, formatter)
+   #{method_src}
+ end
+ END
+ j=55
+end
+
+p '
+'
+p '\n'
+p "
+"
+p "\n"
+p %w/
+/
+p %w/\n/
+
+p %W/
+/
+p %W/\n/
+p(/
+/)
+p(/\n/)
+p proc {
+  p `
+  `
+  p `\n`
+}
+
+
+
+p(%r[foo]i)
+#breakpoint
+p <<stuff+'foobar'.tr('j-l','d-f')
+"more stuff"
+12345678
+the quick brown fox jumped over the lazy dog
+stuff
+
+=begin doesn't work
+p <<stuff+'foobar'.tr('j-l','d-f')\
++"more stuff"
+12345678
+the quick brown fox jumped over the lazy dog
+stuff
+=end
+
+p ENV["AmritaCacheDir"]
+p <<-BEGIN + <<-END
+          def element_downcase(attributes = {})
+        BEGIN
+          end
+        END
+
+
+
+p <<ggg; def
+kleegarts() p 'kkkkkkk' end
+dfgdgfdf
+ggg
+koomblatz!() p 'jdkfsk' end
+
+koomblatz!
+
+p f = 3.7517675036461267e+17
+p $10
+p $1001
+p( <<end )
+nine time nine men have stood untold.
+end
+
+def jd_to_wday(jd) (jd + 1) % 7 end
+p jd_to_wday(98)
+
+
+p    pre = $`
+=begin
+=end
+
+p <<"..end .."
+cbkvjb
+vb;lkxcvkbxc
+vxlc;kblxckvb
+xcvblcvb
+..end ..
+
+p $-j=55
+
+def empty() end
+
+p <<a
+dkflg
+flk
+a
+
+label='label';tab=[1,2,3]
+      p <<S
+#{label} = arr = Array.new(#{tab.size}, nil)
+str = a = i = nil
+idx = 0
+clist.each do |str|
+  str.split(',', -1).each do |i|
+    arr[idx] = i.to_i unless i.empty?
+    idx += 1
+  end
+end
+
+S
+def printem1 a,b,c
+   p(a +77)
+   p(b +77)
+   p(c +77)
+end
+
+def foobar() end
+def foobar2
+end
+
+def printem0(a)
+   p(a +77)
+end
+def printem0(a,b,c)
+   p(a +77)
+   p(b +77)
+   p(c +77)
+end
+def printem2 a,b,c; p(a +77); p(b +77); p(c +77) end
+def three() (1+2) end
+
+def d;end
+def d()end
+def d(dd)end
+
+def printem a,b,c
+   p a;p b;p c
+   p(a +77)
+   p(b %(0.123))
+end
+printem 1,2,3
+
+a=1
+p(a +77)
+
+def hhh(a=(1+2)) a end
+
+
+
+END {
+  p "bye-bye"
+}
+
+
+p <<here
+where?
+here
+p <<-what
+     ? that's
+  what
+p proc{||}
+for i in if false
+foob12345; else [44,55,66,77,88] end do p i**Math.sqrt(i) end
+p "\v"
+c=0
+      while c == /[ \t\f\r\13]/; end
+
+
+
+
+
+
+
+
diff --git a/test/scanners/ruby/evil.out.raydebug b/test/scanners/ruby/evil.out.raydebug
new file mode 100644
index 0000000..b1e3231
--- /dev/null
+++ b/test/scanners/ruby/evil.out.raydebug
@@ -0,0 +1,1123 @@
+ident(p)operator(()constant(String) operator(*)constant(Class)operator(\))
+reserved(class) class(String)
+reserved(class) class(Class)
+reserved(end)
+reserved(end)
+comment(#def String(x\) x.to_s end #it's already built-in. duh!)
+reserved(def) constant(String)operator(.)operator(*)operator(()ident(right)operator(\)) operator([)pre_constant(self)operator(,)ident(right)operator(]) reserved(end)
+reserved(def) constant(String)operator(.)operator(<<)operator(()ident(right)operator(\)) operator([)pre_constant(self)operator(,)symbol(:<<)operator(,)ident(right)operator(]) reserved(end)
+reserved(def) constant(String)operator(.)operator(/)operator(()ident(right)operator(\)) operator([)pre_constant(self)operator(,)symbol(:/)operator(,)ident(right)operator(]) reserved(end)
+reserved(def) constant(String)operator(.)operator([])operator(()ident(right)operator(\)) operator([)pre_constant(self)operator(,)symbol(:[])operator(,)ident(right)operator(]) reserved(end)
+ident(p)operator(()constant(String)operator(::)constant(Class)operator(\))
+ident(p)operator(()constant(String)operator(::) constant(Class)operator(\))
+ident(p)operator(()constant(String) operator(::)constant(Class)operator(\))
+ident(p)operator(()constant(String) operator(::) constant(Class)operator(\))
+ident(p)operator(()constant(String)operator(<<)constant(Class)operator(\))
+ident(p)operator(()constant(String)operator(<<) constant(Class)operator(\))
+ident(p)operator(()constant(String) string<delimiter(<<Class)>operator(\)) string<content(
+sgsdfgf)delimiter(
+Class)>
+ident(p)operator(()constant(String) operator(<<) constant(Class)operator(\))
+ident(p)operator(()constant(String)operator(/)constant(Class)operator(\))
+ident(p)operator(()constant(String)operator(/) constant(Class)operator(\))
+ident(p)operator(()constant(String) regexp<delimiter(/)content(Class)delimiter(/)>operator(\)) 
+ident(p)operator(()constant(String) operator(/) constant(Class)operator(\)) comment(#borken)
+ident(p)operator(()constant(String)operator([)constant(Class)operator(])operator(\))
+ident(p)operator(()constant(String)operator([) constant(Class)operator(])operator(\))
+ident(p)operator(()constant(String) operator([)constant(Class)operator(])operator(\)) 
+ident(p)operator(()constant(String) operator([) constant(Class)operator(])operator(\)) 
+ident(p)operator(()constant(String)operator(*)constant(Class)operator(\))
+ident(p)operator(()constant(String)operator(*) constant(Class)operator(\))
+ident(p)operator(()constant(String) operator(*)constant(Class)operator(\)) 
+ident(p)operator(()constant(String) operator(*) constant(Class)operator(\))
+reserved(class) operator(<<)class(String)
+reserved(undef) symbol(:*)operator(,)method(<<)operator(,)method(/)operator(,)method([])
+reserved(end)
+
+
+
+ident(p)operator(()pre_constant(false)operator(::)ident(to_s)operator(\))
+ident(p)operator(()pre_constant(false) operator(::)ident(to_s)operator(\))
+ident(p)operator(()pre_constant(false)operator(::) ident(to_s)operator(\))
+ident(p)operator(()pre_constant(false) operator(::) ident(to_s)operator(\))
+
+reserved(class) class(C2)
+reserved(class) operator(<<)class(self)
+  reserved(def) pre_constant(self)operator(.)ident(p8)operator(;) ident(p) integer(8) reserved(end)
+  reserved(alias) ident(p?) ident(p)
+  reserved(alias) ident(P?) ident(p)
+  reserved(alias) operator([)operator(]) ident(p)
+  reserved(alias) operator(<=>) ident(p)
+reserved(end)
+
+ident(q)operator(=)integer(9)
+constant(Q)operator(=)integer(99)
+
+ident(p)symbol(:p8)
+pre_constant(false) operator(?) ident(p)operator(:) ident(p8)
+ident(p) symbol(:p8)
+pre_constant(false) operator(?) ident(p) operator(:) ident(p8)
+
+pre_constant(false) operator(?) ident(q)symbol(:p8)
+pre_constant(false) operator(?) ident(q)operator(:) ident(p8)
+pre_constant(false) operator(?) ident(q) symbol(:p8)
+pre_constant(false) operator(?) ident(q) operator(:) ident(p8)
+
+comment(#false ? Q:p8  #gives ruby indigestion)
+pre_constant(false) operator(?) constant(Q)operator(:) ident(p8)
+comment(#false ? Q :p8  #gives ruby indigestion)
+pre_constant(false) operator(?) constant(Q) operator(:) ident(p8)
+
+ident(p?)symbol(:p8)
+pre_constant(false) operator(?) ident(p?)operator(:) ident(p8)
+ident(p?) symbol(:p8)
+pre_constant(false) operator(?) ident(p?) operator(:) ident(p8)
+
+ident(P?)symbol(:p8)
+pre_constant(false) operator(?) ident(P?)operator(:) ident(p8)
+ident(P?) symbol(:p8)
+pre_constant(false) operator(?) ident(P?) operator(:) ident(p8)
+
+pre_constant(self)operator(.)operator([])symbol(:p8)
+pre_constant(false) operator(?) pre_constant(self)operator(.)operator([])operator(:) ident(p8)
+pre_constant(self)operator(.)operator([]) symbol(:p8)
+pre_constant(false) operator(?) pre_constant(self)operator(.)operator([]) operator(:) ident(p8)
+
+pre_constant(self)operator(.)operator(<=>)symbol(:p8)
+pre_constant(false) operator(?) pre_constant(self)operator(.)operator(<=>)operator(:) ident(p8)
+pre_constant(self)operator(.)operator(<=>) symbol(:p8)
+pre_constant(false) operator(?) pre_constant(self)operator(.)operator(<=>) operator(:) ident(p8)
+
+pre_constant(self) operator(<=>)symbol(:p8)
+comment(#false ? self <=>: p8  #gives ruby indigestion)
+pre_constant(self) operator(<=>) symbol(:p8)
+comment(#false ? self <=> : p8  #gives ruby indigestion)
+reserved(end)
+
+ident(p) string<delimiter(<<stuff)>operator(+)string<delimiter(')content(foobar)delimiter(')>operator(.)ident(tr)operator(()string<delimiter(')content(j-l)delimiter(')>operator(,)string<delimiter(')content(d-f)delimiter(')>operator(\))string<content(
+"more stuff"
+12345678
+the quick brown fox jumped over the lazy dog)delimiter(
+stuff)>
+
+
+ident(p) string<delimiter(<<p)>string<content(
+sdfsfdf^^^^@@@)delimiter(
+p)>
+ident(mix)operator(=)pre_constant(nil)
+ident(p) operator(/) integer(5)operator(/)ident(mix)
+
+reserved(module) class(M33)
+  ident(p)operator(=)string<delimiter(")content(var:)delimiter(")>
+  constant(Q)operator(=)string<delimiter(")content(func:)delimiter(")>
+  reserved(def) constant(Q)operator(.)ident(method_missing)operator(()ident(name)operator(,)operator(*)ident(args)operator(\))
+    pre_constant(self)operator(+)ident(name)operator(.)ident(to_s)operator(+)operator(()ident(args)operator(.)ident(join)string<delimiter(')content( )delimiter(')>operator(\))
+  reserved(end)
+  reserved(def) ident(p)operator(.)ident(method_missing)operator(()ident(name)operator(,)operator(*)ident(args)operator(\))
+    pre_constant(self)operator(+)ident(name)operator(.)ident(to_s)operator(+)operator(()ident(args)operator(.)ident(join)string<delimiter(')content( )delimiter(')>operator(\))
+  reserved(end)
+  reserved(def) pre_constant(self)operator(.)ident(p)operator(()operator(*)ident(a)operator(\))operator(;) reserved(super)operator(;) constant(Q) reserved(end)
+  instance_variable(@a)operator(=)integer(1)
+  global_variable($a)operator(=)integer(2)
+  
+  ident(p)operator(()ident(p)operator(~)integer(6)operator(\))
+  ident(p)operator(()ident(p) operator(~)integer(6)operator(\))
+  ident(p)operator(()ident(p)operator(~) integer(6)operator(\))
+  ident(p)operator(()ident(p) operator(~) integer(6)operator(\))
+  ident(p)operator(()ident(p)operator(*)integer(11)operator(\))
+  ident(p)operator(()ident(p) operator(*)integer(11)operator(\))
+  ident(p)operator(()ident(p)operator(*) integer(11)operator(\))
+  ident(p)operator(()ident(p) operator(*) integer(11)operator(\))
+  ident(p)operator(()ident(p)operator(&)ident(proc)operator({)operator(})operator(\))
+  ident(p)operator(()ident(p) operator(&)ident(proc)operator({)operator(})operator(\))
+  ident(p)operator(()ident(p)operator(&) ident(proc)operator({)operator(})operator(\))
+  ident(p)operator(()ident(p) operator(&) ident(proc)operator({)operator(})operator(\))
+  ident(p)operator(()ident(p) operator(!)integer(1)operator(\))
+comment(#  p(p ?1\) #compile error, when p is var)
+  ident(p)operator(()ident(p) operator(!) integer(1)operator(\))
+  ident(p)operator(()ident(p) operator(?) integer(1) operator(:) integer(6)operator(\))
+  ident(p)operator(()ident(p)instance_variable(@a)operator(\))
+  ident(p)operator(()ident(p) instance_variable(@a)operator(\))
+comment(#  p(p@ a\)  #wont)
+comment(#  p(p @ a\) #work )
+  ident(p)operator(()ident(p)comment(#a)
+operator(\))
+  ident(p)operator(()ident(p) comment(#a)
+operator(\))
+  ident(p)operator(()ident(p)comment(# a)
+operator(\))
+  ident(p)operator(()ident(p) comment(# a)
+operator(\))
+  ident(p)operator(()ident(p)global_variable($a)operator(\))
+  ident(p)operator(()ident(p) global_variable($a)operator(\))
+comment(#  p(p$ a\)  #wont)
+comment(#  p(p $ a\) #work)
+  ident(p)operator(()ident(p)operator(%)constant(Q)operator({)symbol(:foo)operator(})operator(\))
+  ident(p)operator(()ident(p) string<delimiter(%Q{)content(:foo)delimiter(})>operator(\))
+  ident(p)operator(()ident(p)operator(%) constant(Q)operator({)symbol(:foo)operator(})operator(\))
+  ident(p)operator(()ident(p) operator(%) constant(Q)operator({)symbol(:foo)operator(})operator(\))
+  ident(p)operator(()ident(p)operator(^)integer(6)operator(\))
+  ident(p)operator(()ident(p) operator(^)integer(6)operator(\))
+  ident(p)operator(()ident(p)operator(^) integer(6)operator(\))
+  ident(p)operator(()ident(p) operator(^) integer(6)operator(\))
+  ident(p)operator(()ident(p)operator(&)integer(7)operator(\))
+  ident(p)operator(()ident(p) operator(&)ident(proc)operator({)integer(7)operator(})operator(\))
+  ident(p)operator(()ident(p)operator(&) integer(7)operator(\))
+  ident(p)operator(()ident(p) operator(&) integer(7)operator(\))
+  ident(p)operator(()ident(p)operator(()integer(2)operator(\))operator(\))
+  ident(p)operator(()ident(p) operator(()integer(2)operator(\))operator(\))
+  ident(p)operator(()ident(p)operator(() integer(2)operator(\))operator(\))
+  ident(p)operator(()ident(p) operator(() integer(2)operator(\))operator(\))
+  ident(p)operator(()ident(p)operator(()ident(p)operator(\))operator(\))
+  ident(p)operator(()ident(p)operator(()operator(\))operator(\))
+  ident(p)operator(()ident(p) operator(()ident(p)operator(\))operator(\))
+  ident(p)operator(()ident(p) operator(()operator(\))operator(\))
+  ident(p)operator(()ident(p) operator(() ident(p)operator(\))operator(\))
+  ident(p)operator(()ident(p) operator(() operator(\))operator(\))
+  ident(p)operator(()ident(p)operator(() ident(p)operator(\))operator(\))
+  ident(p)operator(()ident(p)operator(() operator(\))operator(\))
+  ident(p)operator(()ident(p)operator(\))
+  ident(p)operator(()operator(()ident(p)operator(\))operator(\))
+  ident(p)operator(()ident(p) operator(\))
+  ident(p)operator(()operator(()ident(p) operator(\))operator(\))
+  ident(p)operator(()operator(()ident(p) ident(p)operator(\))operator(\))
+  ident(p)operator(()operator(()ident(p) ident(p)operator(,)ident(p)operator(\))operator(\))
+  ident(p)operator(()operator(()ident(p) ident(p)operator(\))operator(\))
+  ident(p)operator(()operator(()ident(p) ident(p)operator(,)ident(p)operator(\))operator(\))
+  ident(p)operator(()ident(p)integer(-0)operator(\))
+  ident(p)operator(()ident(p) integer(-0)operator(\))
+  ident(p)operator(()ident(p)operator(-) integer(0)operator(\))
+  ident(p)operator(()ident(p) operator(-) integer(0)operator(\))
+  ident(p)operator(()ident(p)integer(+9)operator(\))
+  ident(p)operator(()ident(p) integer(+9)operator(\))
+  ident(p)operator(()ident(p)operator(+) integer(9)operator(\))
+  ident(p)operator(()ident(p) operator(+) integer(9)operator(\))
+  ident(p)operator(()ident(p)operator([)integer(1)operator(])operator(\))
+  ident(p)operator(()ident(p) operator([)integer(1)operator(])operator(\))
+  ident(p)operator(()ident(p)operator([) integer(1)operator(])operator(\))
+  ident(p)operator(()ident(p) operator([) integer(1)operator(])operator(\))
+  ident(p)operator(()ident(p)operator({)integer(1)operator(})operator(\))
+  ident(p)operator(()ident(p) operator({)integer(1)operator(})operator(\))
+  ident(p)operator(()ident(p)operator({) integer(1)operator(})operator(\))
+  ident(p)operator(()ident(p) operator({) integer(1)operator(})operator(\))
+  ident(p)operator(()ident(p)operator(/)integer(1)operator(\))
+  ident(p)operator(()ident(p) regexp<delimiter(/)content(22\)
+  p(p)delimiter(/)> integer(1)operator(\))
+  ident(p)operator(()ident(p) operator(/) integer(22)operator(\))
+  ident(p)operator(()ident(p)operator(.)ident(_)operator(\))
+  ident(p)operator(()ident(p) operator(.)ident(_)operator(\))
+  ident(p)operator(()ident(p)operator(.) ident(_)operator(\))
+  ident(p)operator(()ident(p) operator(.) ident(_)operator(\))
+  ident(p)operator(()pre_constant(false) operator(?) ident(p)symbol(:f)operator(\))
+  ident(p)operator(()pre_constant(false) operator(?) ident(p) symbol(:f)operator(\))
+  ident(p)operator(()pre_constant(false) operator(?) ident(p)operator(:) ident(f)operator(\))
+  ident(p)operator(()pre_constant(false) operator(?) ident(p) operator(:) ident(f)operator(\))
+  ident(p)operator(()operator(()ident(p)operator(;)integer(1)operator(\))operator(\))
+  ident(p)operator(()operator(()ident(p) operator(;)integer(1)operator(\))operator(\))
+  ident(p)operator(()operator(()ident(p)operator(;) integer(1)operator(\))operator(\))
+  ident(p)operator(()operator(()ident(p) operator(;) integer(1)operator(\))operator(\))
+  ident(p)operator(()ident(p)operator(<)integer(1)operator(\))
+  ident(p)operator(()ident(p) operator(<)integer(1)operator(\))
+  ident(p)operator(()ident(p)operator(<) integer(1)operator(\))
+  ident(p)operator(()ident(p) operator(<) integer(1)operator(\))
+  ident(p)operator(()ident(p)operator(<<)integer(1)operator(\))
+  ident(p)operator(()ident(p) string<delimiter(<<1)>operator(\))string<content(
+  p(p<< 1\)
+  p(p << 1\)
+  p(p'j'\)
+  p(p 'j'\)
+  p(p' j'\)
+  p(p ' j'\)
+  p(p"k"\)
+  p(p "k"\)
+  p(p" k"\)
+  p(p " k"\)
+  p(p|4\)
+  p(p |4\)
+  p(p| 4\)
+  p(p | 4\)
+  p(p>2\)
+  p(p >2\)
+  p(p> 2\)
+  p(p > 2\)
+  
+end
+
+module M34
+  p(p~6\)
+  p(p ~6\)
+  p(p~ 6\)
+  p(p ~ 6\)
+  p(p*[1]\)
+  p(p *[1]\)
+  p(p* [1]\)
+  p(p * [1]\)
+  p(p&proc{}\)
+  p(p &proc{}\)
+  p(p& proc{}\)
+  p(p & proc{}\)
+  p(p !1\)
+  p(p ?1\)
+  p(p ! 1\)
+  p(p ? 1 : 6\)
+  p(p@a\)
+  p(p @a\)
+#  p(p@ a\)  #wont
+#  p(p @ a\) #work 
+
+  p(p#a
+\)
+  p(p #a
+\)
+  p(p# a
+\)
+  p(p # a
+\)
+  p(p$a\)
+  p(p $a\)
+#  p(p$ a\)  #wont
+#  p(p $ a\) #work
+  p(p%Q{:foo}\)
+  p(p %Q{:foo}\)
+  p(p% Q{:foo}\)
+  p(p % Q{:foo}\)
+  p(p^6\)
+  p(p ^6\)
+  p(p^ 6\)
+  p(p ^ 6\)
+  p(p&7\)
+  p(p &proc{7}\)
+  p(p& 7\)
+  p(p & 7\)
+  p(p(2\)\)
+  p(p (2\)\)
+  p(p( 2\)\)
+  p(p ( 2\)\)
+  p(p(p\)\)
+  p(p(\)\)
+  p(p (p\)\)
+  p(p (\)\)
+  p(p ( p\)\)
+  p(p ( \)\)
+  p(p( p\)\)
+  p(p( \)\)
+  p(p\)
+  p((p\)\)
+  p(p \)
+  p((p \)\)
+  p((p p\)\)
+  p((p p,p\)\)
+  p((p p\)\)
+  p((p p,p\)\)
+  p(p-0\)
+  p(p -1\)
+  p(p- 0\)
+  p(p - 0\)
+  p(p+9\)
+  p(p +9\)
+  p(p+ 9\)
+  p(p + 9\)
+  p(p[1]\)
+  p(p [1]\)
+  p(p[ 1]\)
+  p(p [ 1]\)
+  p(p{1}\)
+  p(p {1}\)
+  p(p{ 1}\)
+  p(p { 1}\)
+  p(p/1\)
+  p(p /22/\)
+  p(p/ 1\)
+  p(p / 22\)
+  p(p._\)
+  p(p ._\)
+  p(p. _\)
+  p(p . _\)
+  p(p:f\)
+  p(p :f\)
+  p(false ? p: f\)
+  p(false ? p : f\)
+  p((p;1\)\)
+  p((p ;1\)\)
+  p((p; 1\)\)
+  p((p ; 1\)\)
+  p(p<1\)
+  p(p <1\)
+  p(p< 1\)
+  p(p < 1\)
+  p(p<<1\)
+  p(p <<1\)
+foobar)delimiter(
+1)>
+  ident(p)operator(()ident(p)operator(<<) integer(1)operator(\))
+  ident(p)operator(()ident(p) operator(<<) integer(1)operator(\))
+  ident(p)operator(()ident(p)string<delimiter(')content(j)delimiter(')>operator(\))
+  ident(p)operator(()ident(p) string<delimiter(')content(j)delimiter(')>operator(\))
+  ident(p)operator(()ident(p)string<delimiter(')content( j)delimiter(')>operator(\))
+  ident(p)operator(()ident(p) string<delimiter(')content( j)delimiter(')>operator(\))
+  ident(p)operator(()ident(p)string<delimiter(")content(k)delimiter(")>operator(\))
+  ident(p)operator(()ident(p) string<delimiter(")content(k)delimiter(")>operator(\))
+  ident(p)operator(()ident(p)string<delimiter(")content( k)delimiter(")>operator(\))
+  ident(p)operator(()ident(p) string<delimiter(")content( k)delimiter(")>operator(\))
+  ident(p)operator(()ident(p)operator(|)integer(4)operator(\))
+  ident(p)operator(()ident(p) operator(|)integer(4)operator(\))
+  ident(p)operator(()ident(p)operator(|) integer(4)operator(\))
+  ident(p)operator(()ident(p) operator(|) integer(4)operator(\))
+  ident(p)operator(()ident(p)operator(>)integer(2)operator(\))
+  ident(p)operator(()ident(p) operator(>)integer(2)operator(\))
+  ident(p)operator(()ident(p)operator(>) integer(2)operator(\))
+  ident(p)operator(()ident(p) operator(>) integer(2)operator(\))
+  
+reserved(end)
+
+
+reserved(def) method(bob)operator(()ident(x)operator(\)) ident(x) reserved(end)
+reserved(def) method(bill)operator(()ident(x)operator(\)) ident(x) reserved(end)
+ident(p)operator(()ident(bob) string<delimiter(%()content(22)delimiter(\))>operator(\))
+reserved(for) ident(bob) reserved(in) operator([)integer(100)operator(]) reserved(do) ident(p)operator(()ident(bob) string<delimiter(%()content(22)delimiter(\))>operator(\)) reserved(end)
+ident(p)operator(()ident(bob) string<delimiter(%()content(22)delimiter(\))>operator(\))
+reserved(def) method(%)operator(()ident(n)operator(\)) ident(to_s)operator(+)string<delimiter(")content(%)inline<delimiter(#{)ident(n)delimiter(})>delimiter(")> reserved(end)
+ident(p)operator(()ident(bill) string<delimiter(%()content(22)delimiter(\))>operator(\))
+reserved(begin) ident(sdjkfsjkdfsd)operator(;) reserved(rescue) constant(Object) operator(=)operator(>) ident(bill)operator(;) ident(p)operator(()ident(bill) string<delimiter(%()content(22)delimiter(\))>operator(\)) reserved(end)
+ident(p)operator(()ident(bill) string<delimiter(%()content(22)delimiter(\))>operator(\))
+reserved(undef) method(%)
+
+reserved(class) class(Object)
+
+ident(public) symbol(:`)
+reserved(def) method(`)operator(()ident(s)operator(\))
+  ident(print) string<delimiter(")content(bq: )inline<delimiter(#{)ident(s)delimiter(})>char(\\n)delimiter(")>
+reserved(end)
+reserved(end)
+
+integer(69)operator(.)operator(`)operator(()string<delimiter(')content(what a world)delimiter(')>operator(\))
+
+integer(79)operator(::)operator(`)operator(()string<delimiter(')content(what a word)delimiter(')>operator(\))
+
+ident(p) symbol(:`)
+
+ident(p)operator({)operator(})
+ident(p) operator({)operator(})
+ident(a)operator(=)integer(5)
+ident(p) ident(p) integer(+5)
+ident(p) ident(a) integer(+5)
+
+reserved(def) pre_constant(nil)operator(.)operator(+)operator(()ident(x)operator(\)) operator(~)ident(x) reserved(end)
+reserved(def) pre_constant(nil)operator(.)operator([])operator(()operator(*)ident(x)operator(\)) operator([)ident(x)operator(]) reserved(end)
+ident(p)operator(() ident(p) operator(+) integer(5) operator(\))
+ident(p)operator(() ident(p) integer(+5) operator(\))
+ident(p)operator(() ident(p)integer(+5) operator(\))
+ident(p)operator(() ident(p)operator([)operator(]) operator(\))
+ident(p)operator(() ident(p) operator([)operator(]) operator(\))
+ident(p)operator(() ident(p) operator([) operator(]) operator(\))
+reserved(class) class(NilClass)operator(;) reserved(undef) method(+)operator(,)method([]) reserved(end)
+
+reserved(class) class(Foou)
+ ident(public)
+ reserved(def) method([]) ident(x)operator(=)integer(-100)operator(,)operator(&)ident(y)operator(;) ident(p) ident(x)operator(;) integer(100) reserved(end)
+reserved(end)
+ident(a0)operator(=)integer(8)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])operator(!)pre_constant(false)  comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) operator(!)pre_constant(false) comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])operator(~)integer(9)      comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) operator(~)integer(9)     comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])integer(-9)      comment(#op)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])integer(+9)      comment(#op)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) integer(-9)     comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) integer(+9)     comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])operator(<<)integer(9)     comment(#op)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) string<delimiter(<<9)>    comment(#value)string<content(
+foobar)delimiter(
+9)>
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])operator(%)integer(9)      comment(#op)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])operator(/)integer(9)      comment(#op)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) string<delimiter(%()content(9)delimiter(\))>   comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) operator(/)integer(9)operator(/)    comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])global_variable($9)      comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])ident(a0)      comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) global_variable($9)     comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) ident(a0)     comment(#value)
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([])operator({)integer(9)operator(})     comment(#lambda (op\))
+ident(p) constant(Foou)operator(.)ident(new)operator(.)operator([]) operator({)integer(9)operator(})    comment(#lambda (op\))
+
+reserved(if) ident(p) reserved(then) ident(p) reserved(end)
+
+ident(p)operator(()operator({)symbol(:foo)operator(=)operator(>)symbol(:bar)operator(})operator(\))   comment(#why does this work? i'd think that ':foo=' would be 1 token)
+ident(p)   constant(EMPTY) operator(=) integer(0)
+ident(p)   constant(BLACK) operator(=) integer(1)
+ident(p)   constant(WHITE) operator(=) operator(-) constant(BLACK)
+
+ ident(a)operator(=)ident(b)operator(=)ident(c)operator(=)integer(0)
+  ident(a) operator(?) ident(b)symbol(:c)
+  ident(a) integer(?b)symbol(:c)
+
+  ident(p)operator(()ident(a) operator(?) ident(b)symbol(:c)operator(\))
+  ident(p)operator(()ident(a) integer(?b)symbol(:c)operator(\))
+
+
+ident(p)operator(~)integer(4)
+ident(p)symbol(:f)
+ident(p)operator(()operator(~)integer(4)operator(\))operator({)operator(})
+ident(p)operator(()symbol(:f)operator(\))operator({)operator(})
+ident(h)operator(=)operator({)operator(})
+ident(h)operator(.)ident(default)operator(=)symbol(:foo)
+
+ident(p) reserved(def) operator(()ident(h)operator(=)string<delimiter(")content(foobar)delimiter(")>operator(\))operator(.)ident(default)operator(=) ident(v)operator(;) ident(p) instance_variable(@v)operator(=)ident(v)operator(;)ident(v) reserved(end)
+ident(p) ident(h)
+
+ident(p) ident(h)operator(.)ident(default)operator(=)symbol(:b)
+
+ident(x)operator(,) operator(()operator(*)ident(y)operator(\)) operator(=) operator([)symbol(:x)operator(,) symbol(:y)operator(,) symbol(:z)operator(])
+ident(p) ident(x)
+ident(p) ident(y)
+
+ident(x)operator(,) operator(*)ident(y) operator(=) operator([)symbol(:x)operator(,) symbol(:y)operator(,) symbol(:z)operator(])
+ident(p) ident(x)
+ident(p) ident(y)
+
+ident(x)operator(,) operator(*) operator(=) operator([)symbol(:x)operator(,) symbol(:y)operator(,) symbol(:z)operator(])
+ident(p) ident(x)
+
+
+
+ident(p) ident(Array)operator(()string<delimiter(")content(foo)char(\\n)content(bar)delimiter(")>operator(\))
+
+
+
+ident(p) operator(+)operator(()integer(4)operator(\))
+ident(p) operator(-)operator(()integer(4)operator(\))
+
+ident(p) symbol<symbol(:)delimiter(')char(\\\\)delimiter(')>
+
+reserved(class) class(Foop)
+  reserved(def) constant(Foop)operator(.)ident(bar) ident(a)operator(,)ident(b)
+    ident(p) ident(a)operator(,)ident(b)
+  reserved(end)
+reserved(end)
+constant(Foop)operator(.)ident(bar) integer(1)operator(,)integer(2)
+constant(Foop)operator(::)ident(bar) integer(3)operator(,)integer(4)
+
+
+reserved(class) class(Foop)
+  reserved(def) constant(Foop)operator(::)ident(baz) ident(a)operator(,)ident(b)
+    ident(p) symbol(:baz)operator(,)ident(a)operator(,)ident(b)
+  reserved(end)
+reserved(end)
+constant(Foop)operator(.)ident(baz) integer(5)operator(,)integer(6)
+constant(Foop)operator(::)ident(baz) integer(7)operator(,)integer(8)
+
+
+
+ident(without_creating)operator(=)ident(widgetname)operator(=)pre_constant(nil)
+      reserved(if) ident(without_creating) operator(&&) operator(!)ident(widgetname) comment(#foo)
+        ident(fail) constant(ArgumentError)operator(,)
+             string<delimiter(")content(if set 'without_creating' to true, need to define 'widgetname')delimiter(")>
+      reserved(end)
+
+
+
+comment(=begin disable for now
+
+#class, module, and def should temporarily hide local variables
+def mopsdfjskdf arg; arg*2 end
+mopsdfjskdf=5
+ class C
+ p mopsdfjskdf %(3\)    #calls method
+ end
+
+module M
+ p mopsdfjskdf %(4\)    #calls method
+end
+
+ def d
+ p mopsdfjskdf %(5\)    #calls method
+ end
+p d
+p mopsdfjskdf %(6\)     #reads variable
+p proc{mopsdfjskdf %(7\)}[] #reads variable
+
+#fancy symbols not supported yet
+p %s{symbol}
+=end)
+
+comment(#multiple assignment test)
+ident(proc) operator({)
+  ident(a)operator(,)ident(b)operator(,)ident(c)operator(,)ident(d)operator(,)ident(e)operator(,)ident(f)operator(,)ident(g)operator(,)ident(h)operator(,)ident(i)operator(,)ident(j)operator(,)ident(k)operator(=)integer(1)operator(,)integer(2)operator(,)integer(3)operator(,)integer(4)operator(,)integer(5)operator(,)integer(6)operator(,)integer(7)operator(,)integer(8)operator(,)integer(9)operator(,)integer(10)operator(,)integer(11)
+  ident(p)operator(()ident(b) string<delimiter(%()content(c)delimiter(\))>operator(\))
+  ident(p)operator(()ident(a) string<delimiter(%()content(c)delimiter(\))>operator(\))
+  ident(p)operator(()ident(k) string<delimiter(%()content(c)delimiter(\))>operator(\))
+  ident(p)operator(()ident(p) string<delimiter(%()content(c)delimiter(\))>operator(\))
+operator(})operator(.)ident(call)
+
+
+comment(=begin disable for now
+p "#{<<kekerz}#{"foob"
+zimpler
+kekerz
+}"
+
+
+aaa=<<whatnot; p "#{'uh,yeah'
+gonna take it down, to the nitty-grit
+gonna tell you mother-fuckers why you ain't shit
+cause suckers like you just make me strong
+whatnot
+}"
+p aaa
+
+#test variable creation in string inclusion
+#currently broken because string inclusions
+#are lexed by a separate lexer!
+proc {
+  p "jentawz: #{baz=200}"
+  p( baz %(9\)\)
+}.call
+=end)
+
+comment(=begin ought to work...ruby doesn't like
+class A
+class B
+class C
+end
+end
+end
+def A::B::C::d(\) :abcd end
+def A::B::d(\) :abd end   #this used to work as well... i think
+
+def nil.d=; end #this works
+def (;\).d=; end
+def (\).d=; end
+p def (p h="foobar";\).default= v; p @v=v;v end
+p def (p h="foobar";h\).default= v; p @v=v;v end
+
+p~4{}
+p:f{}
+p ~4{}
+p :f{}
+
+def g a=:g; [a] end
+g g g  #this works
+g *g   #this works
+g *g g #this doesn't
+
+[nil,p 5]
+"foo"+[1].join' '
+
+class Fook
+def foo; end
+
+
+#these work:
+(not true\)
+p(!true\) #etc
+(true if false\) #etc
+(true and false\) #etc
+(undef foo\)
+(alias bar foo\)
+(BEGIN{p :yyy}\)
+
+#these don't:
+p(not true\)
+p(true if false\) #etc
+p(true and false\) #etc
+p(undef foo\)
+p(alias bar foo\)
+p(BEGIN{p :yyy}\)
+end
+
+=end)
+
+ident(proc) operator({)
+operator(})
+
+ident(p) string<delimiter(")inline<delimiter(#{)string<delimiter(<<foobar3)>delimiter(})>delimiter(")>
+ident(bim)
+ident(baz)
+ident(bof)
+ident(foobar3)
+
+reserved(def) method(func)
+  ident(a)operator(,)ident(b)operator(,)operator(*) operator(=) operator([)integer(1)operator(,)integer(2)operator(,)integer(3)operator(,)integer(4)operator(,)integer(5)operator(,)integer(6)operator(,)integer(7)operator(,)integer(8)operator(])
+  ident(p) ident(a)operator(,)ident(b)
+  ident(a)operator(,)ident(b)operator(,) operator(=) operator([)integer(1)operator(,)integer(2)operator(,)integer(3)operator(,)integer(4)operator(,)integer(5)operator(,)integer(6)operator(,)integer(7)operator(,)integer(8)operator(])
+  ident(p) ident(a)operator(,)ident(b)
+
+  ident(a)operator(,)ident(b) operator(=) operator([)integer(1)operator(,)integer(2)operator(,)integer(3)operator(,)integer(4)operator(,)integer(5)operator(,)integer(6)operator(,)integer(7)operator(,)integer(8)operator(])
+  ident(p) ident(a)operator(,)ident(b)
+  ident(a)operator(,)operator(*)ident(b) operator(=) operator([)integer(1)operator(,)integer(2)operator(,)integer(3)operator(,)integer(4)operator(,)integer(5)operator(,)integer(6)operator(,)integer(7)operator(,)integer(8)operator(])
+  ident(p) ident(a)operator(,)ident(b)
+
+  ident(a)operator(,)ident(b)operator(,)operator(*)ident(c)operator(=)operator([)integer(1)operator(,)integer(2)operator(,)integer(3)operator(,)integer(4)operator(,)integer(5)operator(,)integer(6)operator(,)integer(7)operator(,)integer(8)operator(])
+  ident(a)operator(,)ident(b)operator(,)operator(*) ident(c)operator(=)operator([)integer(1)operator(,)integer(2)operator(,)integer(3)operator(,)integer(4)operator(,)integer(5)operator(,)integer(6)operator(,)integer(7)operator(,)integer(8)operator(])
+reserved(end)
+ident(func)
+
+
+ident(p)operator(() regexp<delimiter(%r{)char(\\/)content($)delimiter(})>operator(\))
+ident(p)operator(() regexp<delimiter(%r~)content(<!include:([)char(\\/)char(\\w)char(\\.)char(\\-)content(]+\)>)delimiter(~)modifier(m)>operator(\))
+
+ident(p) string<delimiter(<<end)>string<content(
+)inline<delimiter(#{)ident(compile_body)delimiter(})>char(\\
+)inline<delimiter(#{)ident(outvar)delimiter(})>delimiter(
+end)>
+
+
+
+
+
+ident(proc) operator({)
+  ident(h)operator(=)operator({)symbol(:a)operator(=)operator(>)operator(()ident(foo)operator(=)integer(100)operator(\))operator(})
+  ident(p)operator(() ident(foo) string<delimiter(%()content(5)delimiter(\))>operator(\))
+operator(})operator(.)ident(call)
+
+
+ident(p) string<delimiter(")inline<delimiter(#{)string<delimiter(<<foobar3)>delimiter(})>delimiter(")>
+ident(bim)
+ident(baz)
+ident(bof)
+ident(foobar3)
+
+ident(p) string<delimiter(")inline<delimiter(#{)string<delimiter(<<foobar2)>string<content(
+bim
+baz
+bof)delimiter(
+foobar2)>
+delimiter(})>delimiter(")>
+
+ident(p) string<delimiter(<<one)> operator(;) ident(p) string<delimiter(")inline<delimiter(#{)string<delimiter(<<two)>delimiter(})>delimiter(")>string<content(
+1111111111111111
+fdsgdfgdsfffff)delimiter(
+one)>string<content(
+2222222222222222
+sdfasdfasdfads)delimiter(
+two)>
+ident(p) string<delimiter(")inline<delimiter(#{)string<delimiter(<<foobar0)>operator(.)ident(each)operator(()string<delimiter(')content(|)delimiter(')>operator(\))operator({)operator(|)ident(s)operator(|) string<delimiter(')content(\\n)content(thort: )delimiter(')>operator(+)ident(s)operator(}) delimiter(})>delimiter(")>
+ident(jbvd)operator(|)ident(g4543ghb)operator(|)operator(!)instance_variable(@G)global_variable($dfsd)operator(|)ident(fafr)operator(|)ident(e)
+operator(|)ident(s4e5rrwware)operator(|)constant(BBBBB)operator(|*)operator(&)operator(^)operator(()operator(*&)operator(^)operator(>)string<delimiter(")content(PMK:njs;d|
+
+foobar0
+
+p )delimiter(")>comment(#{<<foobar1.each('|'\){|s| '\\nthort: '+s})
+ident(jbvd)operator(|)ident(g4543ghb)operator(|)operator(!)instance_variable(@G)global_variable($dfsd)operator(|)ident(fafr)operator(|)ident(e)
+operator(|)ident(s4e5rrwware)operator(|)constant(BBBBB)operator(|*)operator(&)operator(^)operator(()operator(*&)operator(^)operator(>)string<delimiter(")content(PMK:njs;d|
+
+foobar1
+})delimiter(")>
+
+reserved(def) method(foo)operator(()ident(a)operator(=)string<delimiter(<<a)>operator(,)ident(b)operator(=)string<delimiter(<<b)>operator(,)ident(c)operator(=)string<delimiter(<<c)>operator(\))string<content(
+jfksdkjf
+dkljjkf)delimiter(
+a)>string<content(
+kdljfjkdg
+dfglkdfkgjdf
+dkf)delimiter(
+b)>string<content(
+lkdffdjksadhf
+sdflkdjgsfdkjgsdg
+dsfg;lkdflisgffd
+g)delimiter(
+c)>
+
+   ident(a)operator(+)ident(b)operator(+)ident(c)
+
+reserved(end)
+ident(p) ident(foo)
+
+
+
+global_variable($a)operator(=)integer(1)
+instance_variable(@b)operator(=)integer(2)
+class_variable(@@c)operator(=)integer(3)
+ident(p) string<delimiter(")escape(#)global_variable($a)content( )escape(#)instance_variable(@b)content( )escape(#)class_variable(@@c)content( )inline<delimiter(#{)global_variable($a)operator(+)instance_variable(@b)operator(+)class_variable(@@c)delimiter(})>delimiter(")>
+ident(p) string<delimiter(")char(\\#)content($a )char(\\#)content(@b )char(\\#)content(@@c )char(\\#)content({$a+@b+@@c})delimiter(")>
+ident(p) string<delimiter(')content(#$a #@b #@@c #{$a+@b+@@c})delimiter(')>
+ident(p) string<delimiter(')content(\\#)content($a )content(\\#)content(@b )content(\\#)content(@@c )content(\\#)content({$a+@b+@@c})delimiter(')>
+ident(p) string<delimiter(%w")content(#$a #@b #@@c #{$a+@b+@@c})delimiter(")>
+ident(p) string<delimiter(%w")content(\\#)content($a )content(\\#)content(@b )content(\\#)content(@@c )content(\\#)content({$a+@b+@@c})delimiter(")>
+ident(p) string<delimiter(%W")escape(#)global_variable($a)content( )escape(#)instance_variable(@b)content( )escape(#)class_variable(@@c)content( )inline<delimiter(#{)global_variable($a)operator(+)instance_variable(@b)operator(+)class_variable(@@c)delimiter(})>delimiter(")>
+ident(p) string<delimiter(%W")char(\\#)content($a )char(\\#)content(@b )char(\\#)content(@@c )char(\\#)content({$a+@b+@@c})delimiter(")>
+ident(p) string<delimiter(%Q[)escape(#)global_variable($a)content( )escape(#)instance_variable(@b)content( )escape(#)class_variable(@@c)content( )inline<delimiter(#{)global_variable($a)operator(+)instance_variable(@b)operator(+)class_variable(@@c)delimiter(})>delimiter(])>
+ident(p) string<delimiter(%Q[)char(\\#)content($a )char(\\#)content(@b )char(\\#)content(@@c )char(\\#)content({$a+@b+@@c})delimiter(])>
+ident(p) shell<delimiter(`)content(echo )escape(#)global_variable($a)content( )escape(#)instance_variable(@b)content( )escape(#)class_variable(@@c)content( )inline<delimiter(#{)global_variable($a)operator(+)instance_variable(@b)operator(+)class_variable(@@c)delimiter(})>delimiter(`)>
+ident(p) shell<delimiter(`)content(echo )char(\\#)content($a )char(\\#)content(@b )char(\\#)content(@@c )char(\\#)content({$a+@b+@@c})delimiter(`)>
+ident(p)operator(()regexp<delimiter(/)escape(#)global_variable($a)content( )escape(#)instance_variable(@b)content( )escape(#)class_variable(@@c)content( )inline<delimiter(#{)global_variable($a)operator(+)instance_variable(@b)operator(+)class_variable(@@c)delimiter(})>delimiter(/)>operator(\))
+comment(#p(/\\#$a \\#@b \\#@@c \\#{$a+@b+@@c}/\) #moved to w.rb)
+
+reserved(class) class(AA)operator(;) reserved(class) class(BB)operator(;) reserved(class) class(CC)
+constant(FFOO)operator(=)integer(1)
+reserved(end) reserved(end) reserved(end)
+
+ident(p) constant(AA)operator(::)constant(BB)operator(::)constant(CC)operator(::)constant(FFOO)
+
+ident(compile_body)operator(=)ident(outvar)operator(=)string<delimiter(')content(foob)delimiter(')>
+
+reserved(if) pre_constant(false)
+ ident(method_src) operator(=) ident(c)operator(.)ident(compile)operator(()ident(template)operator(,) operator(()constant(HtmlCompiler)operator(::)constant(AnyData)operator(.)ident(new)operator(\))operator(\))operator(.)ident(join)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\)) operator(+)
+    string<delimiter(")char(\\n)content(# generated by PartsTemplate::compile_partstemplate at )inline<delimiter(#{)constant(Time)operator(.)ident(new)delimiter(})>char(\\n)delimiter(")>
+ ident(rescu) integer(-1)
+reserved(end)
+
+  ident(p)operator(()string<delimiter(')content(rb_out)delimiter(')>operator(,) string<delimiter(')content(args)delimiter(')>operator(,) string<delimiter(<<-'EOL')>operator(\))string<content(
+    regsub -all {!} $args {)char(\\\\)content(!} args
+    regsub -all "{" $args ")char(\\\\)content({" args
+    if {[set st [catch {ruby [format "TkCore.callback %%Q!%s!" $args]} ret]] != 0} {
+        return -code $st $ret
+    } {
+        return $ret
+    })delimiter(
+  EOL)>
+
+reserved(def) method(add)operator(()operator(*)ident(args)operator(\))
+   pre_constant(self)operator(.)operator(<<)operator(()operator(*)ident(args)operator(\))
+reserved(end)
+
+
+
+ident(val)operator(=)string<delimiter(%[)content(13,17,22,"hike", ?)char(\\s)delimiter(])>
+    reserved(if) ident(val)operator(.)ident(include?) integer(?\\s)
+      ident(p) ident(val)operator(.)ident(split)operator(.)ident(collect)operator({)operator(|)ident(v)operator(|) operator(()ident(v)operator(\))operator(})
+    reserved(end)
+ident(p) string<delimiter(")inline<delimiter(#{)delimiter(})>delimiter(")>
+ident(p) string<delimiter(")content(#(1\))delimiter(")>
+reserved(class) class(Hosts)
+reserved(end)
+reserved(class) class(DNS) operator(<) constant(Hosts)
+reserved(end)
+reserved(def) method(intialize)operator(()ident(resolvers)operator(=)operator([)constant(Hosts)operator(.)ident(new)operator(,) constant(DNS)operator(.)ident(new)operator(])operator(\)) reserved(end)
+reserved(def) method(environment)operator(()ident(env) operator(=) constant(File)operator(.)ident(basename)operator(()global_variable($0)operator(,) string<delimiter(')content(.*)delimiter(')>operator(\))operator(\)) reserved(end)
+
+reserved(def) method(ssssss) operator(&)ident(block)
+reserved(end)
+reserved(def) method(params_quoted)operator(()ident(field_name)operator(,) ident(default)operator(\))
+  reserved(if) ident(block_given?) reserved(then) reserved(yield) ident(field_name) reserved(else) ident(default) reserved(end)
+reserved(end)
+reserved(def) method(==)operator(()ident(o)operator(\)) integer(444) reserved(end)
+reserved(def) constant(String)operator(.)ident(ffff4)operator(()operator(\)) pre_constant(self)operator(.)ident(to_s)operator(+)string<delimiter(")content(ffff)delimiter(")> reserved(end)
+
+ident(p) operator(*)operator([)operator(])
+reserved(for) ident(i) reserved(in) \
+operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(]) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+
+comment(#()
+reserved(for) ident(i) reserved(in) reserved(if)
+pre_constant(false) reserved(then) ident(foob12345)operator(;) reserved(else) operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(]) reserved(end) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+comment(#\))
+operator(()
+reserved(for) ident(i) reserved(in) reserved(if) pre_constant(false) reserved(then)
+ident(foob12345)operator(;) reserved(else) operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(]) reserved(end) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+
+ident(c)operator(=)ident(j)operator(=)integer(0)
+reserved(until) reserved(while) ident(j)operator(<)integer(10) reserved(do) ident(j)operator(+=)integer(1) reserved(end)operator(.)ident(nil?) reserved(do) ident(p) string<delimiter(')content(pppppppppp)delimiter(')> reserved(end)
+reserved(for) ident(i) reserved(in) reserved(if) pre_constant(false) reserved(then) ident(foob12345)operator(;)
+reserved(else) operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(]) reserved(end) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+
+reserved(for) ident(i) reserved(in) reserved(if) pre_constant(false) reserved(then) ident(foob12345)operator(;) reserved(else)
+operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(]) reserved(end) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+
+
+reserved(for) ident(i) reserved(in) operator(()ident(c)operator(;)
+operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(])operator(\)) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+operator(\))
+operator(()
+
+reserved(for) ident(i) reserved(in) operator(()reserved(begin)
+operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(]) reserved(end)operator(\)) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+
+reserved(for) ident(i) reserved(in) reserved(if) pre_constant(false) reserved(then) ident(foob12345)operator(;) reserved(else)
+operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(]) reserved(end) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+
+reserved(for) ident(i) reserved(in) operator(()
+
+operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(])operator(\)) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+
+reserved(for) ident(i) reserved(in) operator(()
+operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(])operator(\)) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+
+operator(\))
+
+
+reserved(def) method(yy)operator(;)reserved(yield) reserved(end)
+
+ident(block)operator(=)ident(proc)operator({)ident(p) string<delimiter(")content(blah  blah)delimiter(")>operator(})
+
+ident(yy) operator(&)ident(block)
+ident(p)operator(()integer(1)operator(.)operator(+)integer(1)operator(\))
+ident(p) ident(pppp)
+
+reserved(module) class(M66)
+ident(p)operator(()ident(proc) reserved(do)
+   ident(p)operator(=)integer(123)
+reserved(end)operator(.)ident(call)operator(\))
+
+ident(p) ident(proc) operator({)
+   ident(p)operator(=)integer(123)
+operator(})operator(.)ident(call)
+
+ident(p) reserved(def) method(pppp)
+   ident(p)operator(=)integer(123)
+reserved(end)
+ident(p) reserved(module) class(Ppp)
+   ident(p)operator(=)integer(123)
+reserved(end)
+ident(p) reserved(class) class(Pppp) operator(<) constant(String)
+   ident(p)operator(=)integer(123)
+reserved(end)
+reserved(end)
+
+    reserved(def) method(_make_regex)operator(()ident(str)operator(\)) operator(/)operator(()operator([)comment(#{Regexp.escape(str\)}]\)/n end)
+ident(p) ident(_make_regex)operator(()string<delimiter(")content(8smdf,34rh)char(\\#)content(@)char(\\#)content($%$gfm/[]dD)delimiter(")>operator(\))
+
+
+ident(p) string<delimiter(")escape(#)global_variable($a)content( )escape(#)instance_variable(@b)content( )escape(#)class_variable(@@c)content(
+
+d e f
+)escape(#)global_variable($a)content( )escape(#)instance_variable(@b)content( )escape(#)class_variable(@@c)content(
+)delimiter(")>
+
+ident(p) string<delimiter(")char(\\")delimiter(")>
+
+ident(a)operator(=)ident(a)operator(.)ident(to_s)
+reserved(class) operator(<<)class(a)
+  reserved(def) method(foobar)
+     pre_constant(self)operator(*)integer(101)
+  reserved(end)
+  reserved(alias)    ident(eql?)    operator(==)
+reserved(end)
+
+ident(p) ident(a)operator(.)ident(foobar)
+
+ident(p)operator(()regexp<delimiter(/)content(^)char(\\s)content(*(([+-)char(\\/)content(*&)char(\\|)content(^]|<<|>>|)char(\\|)char(\\|)content(|)char(\\&)char(\\&)content(\)=|)char(\\&)char(\\&)content(|)char(\\|)char(\\|)content(\))delimiter(/)>operator(\))
+ident(p)operator(()symbol(:%)operator(\))
+ident(p)operator(() operator({) symbol(:class) operator(=)operator(>) ident(class_)operator(=)integer(0)operator(})operator(\))
+ident(p) ident(cls_name) operator(=) operator({)operator(})operator([)symbol(:class)operator(])
+
+
+ident(p) ident(foo)
+ident(p) string<delimiter(")inline<delimiter(#{)global_variable($!)operator(.)ident(class)delimiter(})>delimiter(")>
+ident(p) symbol(:p)
+ident(p)operator(()symbol(:p)operator(\))
+ident(p)operator(()symbol<symbol(:)delimiter(")content([])delimiter(")>operator(\))
+ident(p) symbol<symbol(:)delimiter(")content([])delimiter(")>
+ident(p)operator(()string<delimiter(")char(\\\\)delimiter(")>operator(\))
+ident(p)operator(()regexp<delimiter(/)char(\\\\)delimiter(/)>operator(\))
+ident(p)operator(()regexp<delimiter(/)content([)char(\\\\)content(])delimiter(/)>operator(\))
+ident(p) integer(0x80)
+ident(p) integer(?p)
+ident(p) float(0.1)
+ident(p) float(0.8)
+ident(p) float(0.9)
+ident(p)operator(()integer(-1)operator(\))
+ident(p) string<delimiter(%/)content(p)delimiter(/)>
+ident(p) string<delimiter(%Q[)content(<LI>)delimiter(])>
+ident(i)operator(=)integer(99)
+ident(p) string<delimiter(%Q[)content(<LI><A HREF=")inline<delimiter(#{)ident(i)operator([)integer(3)operator(])delimiter(})>content(.html)char(\\#)inline<delimiter(#{)ident(i)operator([)integer(4)operator(])delimiter(})>content(">)inline<delimiter(#{)ident(i)operator([)integer(0)operator(])operator(+)ident(i)operator([)integer(1)operator(])operator(+)operator(()ident(i)operator([)integer(2)operator(])operator(\))delimiter(})>content(</A>)char(\\n)delimiter(])>
+ident(p)operator(()symbol(:side)operator(=)operator(>)symbol(:top)operator(\))
+ident(p) string<delimiter(%w[)content(a b c
+     d e f)delimiter(])>
+ident(p) string<delimiter(%w[)content(a b c)content(\\n)content(
+     d e f)delimiter(])>
+ident(p) string<delimiter(%w[)char(\\\\)delimiter(])>
+ident(p) string<delimiter(%w[)char(\\])delimiter(])>
+ident(p) symbol(:+)
+ident(p) integer(99) operator(/) integer(3)
+
+ident(a)operator(=)integer(99)operator(;)ident(b)operator(=)integer(3)
+ident(p) integer(1)operator(+)operator(()ident(a) operator(/) ident(b)operator(\))
+ident(p) string<delimiter(%Q[)char(\\")delimiter(])>
+ident(p) string<delimiter(%Q[)content( some )nesting_delimiter([)content(nested)nesting_delimiter(])content( text)delimiter(])>
+
+reserved(if) pre_constant(false)
+     ident(formatter)operator(.)ident(format_element)operator(()ident(element)operator(\)) reserved(do)
+       ident(amrita_expand_and_format1)operator(()ident(element)operator(,) ident(context)operator(,) ident(formatter)operator(\))
+     reserved(end)
+reserved(end)
+reserved(if) pre_constant(false)
+ ident(ret) operator(=) string<delimiter(<<-END)>string<content(
+ @@parts_template = )inline<delimiter(#{)ident(template)operator(.)ident(to_ruby)delimiter(})>content(
+ def parts_template
+   @@parts_template
+ end
+
+ )inline<delimiter(#{)ident(c)operator(.)ident(const_def_src)operator(.)ident(join)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))delimiter(})>content(
+ def amrita_expand_and_format(element, context, formatter\)
+   if element.tagname_symbol == :span and element.attrs.size == 0
+     amrita_expand_and_format1(element, context, formatter\)
+   else
+     formatter.format_element(element\) do
+       amrita_expand_and_format1(element, context, formatter\)
+     end
+   end
+ end
+
+ def amrita_expand_and_format1(element, context, formatter\)
+   )inline<delimiter(#{)ident(method_src)delimiter(})>content(
+ end)delimiter(
+ END)>
+ ident(j)operator(=)integer(55)
+reserved(end)
+
+ident(p) string<delimiter(')content(
+)delimiter(')>
+ident(p) string<delimiter(')content(\\n)delimiter(')>
+ident(p) string<delimiter(")content(
+)delimiter(")>
+ident(p) string<delimiter(")char(\\n)delimiter(")>
+ident(p) string<delimiter(%w/)content(
+)delimiter(/)>
+ident(p) string<delimiter(%w/)content(\\n)delimiter(/)>
+
+ident(p) string<delimiter(%W/)content(
+)delimiter(/)>
+ident(p) string<delimiter(%W/)char(\\n)delimiter(/)>
+ident(p)operator(()regexp<delimiter(/)content(
+)delimiter(/)>operator(\))
+ident(p)operator(()regexp<delimiter(/)char(\\n)delimiter(/)>operator(\))
+ident(p) ident(proc) operator({)
+  ident(p) shell<delimiter(`)content(
+  )delimiter(`)>
+  ident(p) shell<delimiter(`)char(\\n)delimiter(`)>
+operator(})
+
+
+
+ident(p)operator(()regexp<delimiter(%r[)content(foo)delimiter(])modifier(i)>operator(\))
+comment(#breakpoint)
+ident(p) string<delimiter(<<stuff)>operator(+)string<delimiter(')content(foobar)delimiter(')>operator(.)ident(tr)operator(()string<delimiter(')content(j-l)delimiter(')>operator(,)string<delimiter(')content(d-f)delimiter(')>operator(\))string<content(
+"more stuff"
+12345678
+the quick brown fox jumped over the lazy dog)delimiter(
+stuff)>
+
+comment(=begin doesn't work
+p <<stuff+'foobar'.tr('j-l','d-f'\)\\
++"more stuff"
+12345678
+the quick brown fox jumped over the lazy dog
+stuff
+=end)
+
+ident(p) constant(ENV)operator([)string<delimiter(")content(AmritaCacheDir)delimiter(")>operator(])
+ident(p) string<delimiter(<<-BEGIN)> operator(+) string<delimiter(<<-END)>string<content(
+          def element_downcase(attributes = {}\))delimiter(
+        BEGIN)>string<content(
+          end)delimiter(
+        END)>
+
+
+
+ident(p) string<delimiter(<<ggg)>operator(;) reserved(def)string<content(
+kleegarts(\) p 'kkkkkkk' end
+dfgdgfdf)delimiter(
+ggg)>
+ident(koomblatz!)operator(()operator(\)) ident(p) string<delimiter(')content(jdkfsk)delimiter(')> reserved(end)
+
+ident(koomblatz!)
+
+ident(p) ident(f) operator(=) float(3.7517675036461267e+17)
+ident(p) global_variable($10)
+ident(p) global_variable($1001)
+ident(p)operator(() string<delimiter(<<end)> operator(\))string<content(
+nine time nine men have stood untold.)delimiter(
+end)>
+
+reserved(def) method(jd_to_wday)operator(()ident(jd)operator(\)) operator(()ident(jd) operator(+) integer(1)operator(\)) operator(%) integer(7) reserved(end)
+ident(p) ident(jd_to_wday)operator(()integer(98)operator(\))
+
+
+ident(p)    ident(pre) operator(=) global_variable($`)
+comment(=begin
+=end)
+
+ident(p) string<delimiter(<<"..end ..")>string<content(
+cbkvjb
+vb;lkxcvkbxc
+vxlc;kblxckvb
+xcvblcvb)delimiter(
+..end ..)>
+
+ident(p) global_variable($-j)operator(=)integer(55)
+
+reserved(def) method(empty)operator(()operator(\)) reserved(end)
+
+ident(p) string<delimiter(<<a)>string<content(
+dkflg
+flk)delimiter(
+a)>
+
+ident(label)operator(=)string<delimiter(')content(label)delimiter(')>operator(;)ident(tab)operator(=)operator([)integer(1)operator(,)integer(2)operator(,)integer(3)operator(])
+      ident(p) string<delimiter(<<S)>string<content(
+)inline<delimiter(#{)ident(label)delimiter(})>content( = arr = Array.new()inline<delimiter(#{)ident(tab)operator(.)ident(size)delimiter(})>content(, nil\)
+str = a = i = nil
+idx = 0
+clist.each do |str|
+  str.split(',', -1\).each do |i|
+    arr[idx] = i.to_i unless i.empty?
+    idx += 1
+  end
+end
+)delimiter(
+S)>
+reserved(def) method(printem1) ident(a)operator(,)ident(b)operator(,)ident(c)
+   ident(p)operator(()ident(a) integer(+77)operator(\))
+   ident(p)operator(()ident(b) integer(+77)operator(\))
+   ident(p)operator(()ident(c) integer(+77)operator(\))
+reserved(end)
+
+reserved(def) method(foobar)operator(()operator(\)) reserved(end)
+reserved(def) method(foobar2)
+reserved(end)
+
+reserved(def) method(printem0)operator(()ident(a)operator(\))
+   ident(p)operator(()ident(a) integer(+77)operator(\))
+reserved(end)
+reserved(def) method(printem0)operator(()ident(a)operator(,)ident(b)operator(,)ident(c)operator(\))
+   ident(p)operator(()ident(a) integer(+77)operator(\))
+   ident(p)operator(()ident(b) integer(+77)operator(\))
+   ident(p)operator(()ident(c) integer(+77)operator(\))
+reserved(end)
+reserved(def) method(printem2) ident(a)operator(,)ident(b)operator(,)ident(c)operator(;) ident(p)operator(()ident(a) integer(+77)operator(\))operator(;) ident(p)operator(()ident(b) integer(+77)operator(\))operator(;) ident(p)operator(()ident(c) integer(+77)operator(\)) reserved(end)
+reserved(def) method(three)operator(()operator(\)) operator(()integer(1)integer(+2)operator(\)) reserved(end)
+
+reserved(def) method(d)operator(;)reserved(end)
+reserved(def) method(d)operator(()operator(\))reserved(end)
+reserved(def) method(d)operator(()ident(dd)operator(\))reserved(end)
+
+reserved(def) method(printem) ident(a)operator(,)ident(b)operator(,)ident(c)
+   ident(p) ident(a)operator(;)ident(p) ident(b)operator(;)ident(p) ident(c)
+   ident(p)operator(()ident(a) integer(+77)operator(\))
+   ident(p)operator(()ident(b) string<delimiter(%()content(0.123)delimiter(\))>operator(\))
+reserved(end)
+ident(printem) integer(1)operator(,)integer(2)operator(,)integer(3)
+
+ident(a)operator(=)integer(1)
+ident(p)operator(()ident(a) integer(+77)operator(\))
+
+reserved(def) method(hhh)operator(()ident(a)operator(=)operator(()integer(1)integer(+2)operator(\))operator(\)) ident(a) reserved(end)
+
+
+
+reserved(END) operator({)
+  ident(p) string<delimiter(")content(bye-bye)delimiter(")>
+operator(})
+
+
+ident(p) string<delimiter(<<here)>string<content(
+where?)delimiter(
+here)>
+ident(p) string<delimiter(<<-what)>string<content(
+     ? that's)delimiter(
+  what)>
+ident(p) ident(proc)operator({)operator(||)operator(})
+reserved(for) ident(i) reserved(in) reserved(if) pre_constant(false)
+ident(foob12345)operator(;) reserved(else) operator([)integer(44)operator(,)integer(55)operator(,)integer(66)operator(,)integer(77)operator(,)integer(88)operator(]) reserved(end) reserved(do) ident(p) ident(i)operator(**)constant(Math)operator(.)ident(sqrt)operator(()ident(i)operator(\)) reserved(end)
+ident(p) string<delimiter(")char(\\v)delimiter(")>
+ident(c)operator(=)integer(0)
+      reserved(while) ident(c) operator(==) regexp<delimiter(/)content([ )char(\\t)char(\\f)char(\\r)char(\\13)content(])delimiter(/)>operator(;) reserved(end)
+
+
+
+
+
+
+
+
diff --git a/test/scanners/ruby/example.in.rb b/test/scanners/ruby/example.in.rb
new file mode 100644
index 0000000..8e6d20e
--- /dev/null
+++ b/test/scanners/ruby/example.in.rb
@@ -0,0 +1,3789 @@
+module CodeRay
+	module Scanners
+
+class Ruby < Scanner
+
+	RESERVED_WORDS = [
+		'and', 'def', 'end', 'in', 'or', 'unless', 'begin',
+		'defined?', 'ensure', 'module', 'redo', 'super', 'until',
+		'BEGIN', 'break', 'do', 'next', 'rescue', 'then',
+		'when', 'END', 'case', 'else', 'for', 'retry',
+		'while', 'alias', 'class', 'elsif', 'if', 'not', 'return',
+		'undef', 'yield',
+	]
+
+	DEF_KEYWORDS = ['def']
+	MODULE_KEYWORDS = ['class', 'module']
+	DEF_NEW_STATE = WordList.new(:initial).
+		add(DEF_KEYWORDS, :def_expected).
+		add(MODULE_KEYWORDS, :module_expected)
+
+	WORDS_ALLOWING_REGEXP = [
+		'and', 'or', 'not', 'while', 'until', 'unless', 'if', 'elsif', 'when'
+	]
+	REGEXP_ALLOWED = WordList.new(false).
+		add(WORDS_ALLOWING_REGEXP, :set)
+
+	PREDEFINED_CONSTANTS = [
+		'nil', 'true', 'false', 'self',
+		'DATA', 'ARGV', 'ARGF', '__FILE__', '__LINE__',
+	]
+
+	IDENT_KIND = WordList.new(:ident).
+		add(RESERVED_WORDS, :reserved).
+		add(PREDEFINED_CONSTANTS, :pre_constant)
+
+	METHOD_NAME = / #{IDENT} [?!]? /xo
+	METHOD_NAME_EX = /
+	 #{METHOD_NAME}  # common methods: split, foo=, empty?, gsub!
+	 | \*\*?         # multiplication and power
+	 | [-+~]@?       # plus, minus
+	 | [\/%&|^`]     # division, modulo or format strings, &and, |or, ^xor, `system`
+	 | \[\]=?        # array getter and setter
+	 | <=?>? | >=?   # comparison, rocket operator
+	 | << | >>       # append or shift left, shift right
+	 | ===?          # simple equality and case equality
+	/ox
+	GLOBAL_VARIABLE = / \$ (?: #{IDENT} | \d+ | [~&+`'=\/,;_.<>!@0$?*":F\\] | -[a-zA-Z_0-9] ) /ox
+
+	DOUBLEQ = / "  [^"\#\\]*  (?: (?: \#\{.*?\} | \#(?:$")?  | \\. ) [^"\#\\]*  )* "?  /ox
+	SINGLEQ = / '  [^'\\]*    (?:                              \\.   [^'\\]*    )* '?  /ox
+	STRING  = / #{SINGLEQ} | #{DOUBLEQ} /ox
+	SHELL   = / `  [^`\#\\]*  (?: (?: \#\{.*?\} | \#(?:$`)?  | \\. ) [^`\#\\]*  )* `?  /ox
+	REGEXP  = / \/ [^\/\#\\]* (?: (?: \#\{.*?\} | \#(?:$\/)? | \\. ) [^\/\#\\]* )* \/? /ox
+
+	DECIMAL = /\d+(?:_\d+)*/  # doesn't recognize 09 as octal error
+	OCTAL = /0_?[0-7]+(?:_[0-7]+)*/
+	HEXADECIMAL = /0x[0-9A-Fa-f]+(?:_[0-9A-Fa-f]+)*/
+	BINARY = /0b[01]+(?:_[01]+)*/
+
+	EXPONENT = / [eE] [+-]? #{DECIMAL} /ox
+	FLOAT = / #{DECIMAL} (?: #{EXPONENT} | \. #{DECIMAL} #{EXPONENT}? ) /
+	INTEGER = /#{OCTAL}|#{HEXADECIMAL}|#{BINARY}|#{DECIMAL}/
+
+	def reset
+		super
+		@regexp_allowed = false
+	end
+
+	def next_token
+		return if @scanner.eos?
+
+		kind = :error
+		if @scanner.scan(/\s+/)  # in every state
+			kind = :space
+			@regexp_allowed = :set if @regexp_allowed or @scanner.matched.index(?\n)  # delayed flag setting
+
+		elsif @state == :def_expected
+			if @scanner.scan(/ (?: (?:#{IDENT}(?:\.|::))* | (?:@@?|$)? #{IDENT}(?:\.|::) ) #{METHOD_NAME_EX} /ox)
+				kind = :method
+				@state = :initial
+			else
+				@scanner.getch
+			end
+			@state = :initial
+
+		elsif @state == :module_expected
+			if @scanner.scan(/<</)
+				kind = :operator
+			else
+				if @scanner.scan(/ (?: #{IDENT} (?:\.|::))* #{IDENT} /ox)
+					kind = :method
+				else
+					@scanner.getch
+				end
+				@state = :initial
+			end
+
+		elsif # state == :initial
+			# IDENTIFIERS, KEYWORDS
+			if @scanner.scan(GLOBAL_VARIABLE)
+				kind = :global_variable
+			elsif @scanner.scan(/ @@ #{IDENT} /ox)
+				kind = :class_variable
+			elsif @scanner.scan(/ @ #{IDENT} /ox)
+				kind = :instance_variable
+			elsif @scanner.scan(/ __END__\n ( (?!\#CODE\#) .* )? | \#[^\n]* | =begin(?=\s).*? \n=end(?=\s|\z)(?:[^\n]*)? /mx)
+				kind = :comment
+			elsif @scanner.scan(METHOD_NAME)
+				if @last_token_dot
+					kind = :ident
+				else
+					matched = @scanner.matched
+					kind = IDENT_KIND[matched]
+					if kind == :ident and matched =~ /^[A-Z]/
+						kind = :constant
+					elsif kind == :reserved
+						@state = DEF_NEW_STATE[matched]
+						@regexp_allowed = REGEXP_ALLOWED[matched]
+					end
+				end
+
+			elsif @scanner.scan(STRING)
+				kind = :string
+			elsif @scanner.scan(SHELL)
+				kind = :shell
+			elsif @scanner.scan(/<<
+				(?:
+					([a-zA-Z_0-9]+)
+						(?: .*? ^\1$ | .* )
+				|
+					-([a-zA-Z_0-9]+)
+						(?: .*? ^\s*\2$ | .* )
+				|
+					(["\'`]) (.+?) \3
+						(?: .*? ^\4$ | .* )
+				|
+					- (["\'`]) (.+?) \5
+						(?: .*? ^\s*\6$ | .* )
+				)
+			/mxo)
+				kind = :string
+			elsif @scanner.scan(/\//) and @regexp_allowed
+				@scanner.unscan
+				@scanner.scan(REGEXP)
+				kind = :regexp
+/%(?:[Qqxrw](?:\([^)#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^)#\\\\]*)*\)?|\[[^\]#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^\]#\\\\]*)*\]?|\{[^}#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^}#\\\\]*)*\}?|<[^>#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^>#\\\\]*)*>?|([^a-zA-Z\\\\])(?:(?!\1)[^#\\\\])*(?:(?:#\{.*?\}|#|\\\\.)(?:(?!\1)[^#\\\\])*)*\1?)|\([^)#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^)#\\\\]*)*\)?|\[[^\]#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^\]#\\\\]*)*\]?|\{[^}#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^}#\\\\]*)*\}?|<[^>#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^>#\\\\]*)*>?|([^a-zA-Z\s\\\\])(?:(?!\2)[^#\\\\])*(?:(?:#\{.*?\}|#|\\\\.)(?:(?!\2)[^#\\\\])*)*\2?|\\\\[^#\\\\]*(?:(?:#\{.*?\}|#)[^#\\\\]*)*\\\\?)/
+			elsif @scanner.scan(/:(?:#{GLOBAL_VARIABLE}|#{METHOD_NAME_EX}|#{STRING})/ox)
+				kind = :symbol
+			elsif @scanner.scan(/
+				\? (?:
+					[^\s\\]
+				|
+					\\ (?:M-\\C-|C-\\M-|M-\\c|c\\M-|c|C-|M-))? (?: \\ (?: . | [0-7]{3} | x[0-9A-Fa-f][0-9A-Fa-f] )
+				)
+			/mox)
+				kind = :integer
+
+			elsif @scanner.scan(/ [-+*\/%=<>;,|&!()\[\]{}~?] | \.\.?\.? | ::? /x)
+				kind = :operator
+				@regexp_allowed = :set if @scanner.matched[-1,1] =~ /[~=!<>|&^,\(\[+\-\/\*%]\z/
+			elsif @scanner.scan(FLOAT)
+				kind = :float
+			elsif @scanner.scan(INTEGER)
+				kind = :integer
+			else
+				@scanner.getch
+			end
+		end
+
+		token = Token.new @scanner.matched, kind
+
+		if kind == :regexp
+			token.text << @scanner.scan(/[eimnosux]*/)
+		end
+
+		@regexp_allowed = (@regexp_allowed == :set)  # delayed flag setting
+
+		token
+	end
+end
+
+register Ruby, 'ruby', 'rb'
+
+	end
+end
+class Set
+  include Enumerable
+
+  # Creates a new set containing the given objects.
+  def self.[](*ary)
+    new(ary)
+  end
+
+  # Creates a new set containing the elements of the given enumerable
+  # object.
+  #
+  # If a block is given, the elements of enum are preprocessed by the
+  # given block.
+  def initialize(enum = nil, &block) # :yields: o
+    @hash ||= Hash.new
+
+    enum.nil? and return
+
+    if block
+      enum.each { |o| add(block[o]) }
+    else
+      merge(enum)
+    end
+  end
+
+  # Copy internal hash.
+  def initialize_copy(orig)
+    @hash = orig.instance_eval{@hash}.dup
+  end
+
+  # Returns the number of elements.
+  def size
+    @hash.size
+  end
+  alias length size
+
+  # Returns true if the set contains no elements.
+  def empty?
+    @hash.empty?
+  end
+
+  # Removes all elements and returns self.
+  def clear
+    @hash.clear
+    self
+  end
+
+  # Replaces the contents of the set with the contents of the given
+  # enumerable object and returns self.
+  def replace(enum)
+    if enum.class == self.class
+      @hash.replace(enum.instance_eval { @hash })
+    else
+      enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+      clear
+      enum.each { |o| add(o) }
+    end
+
+    self
+  end
+
+  # Converts the set to an array.  The order of elements is uncertain.
+  def to_a
+    @hash.keys
+  end
+
+  def flatten_merge(set, seen = Set.new)
+    set.each { |e|
+      if e.is_a?(Set)
+	if seen.include?(e_id = e.object_id)
+	  raise ArgumentError, "tried to flatten recursive Set"
+	end
+
+	seen.add(e_id)
+	flatten_merge(e, seen)
+	seen.delete(e_id)
+      else
+	add(e)
+      end
+    }
+
+    self
+  end
+  protected :flatten_merge
+
+  # Returns a new set that is a copy of the set, flattening each
+  # containing set recursively.
+  def flatten
+    self.class.new.flatten_merge(self)
+  end
+
+  # Equivalent to Set#flatten, but replaces the receiver with the
+  # result in place.  Returns nil if no modifications were made.
+  def flatten!
+    if detect { |e| e.is_a?(Set) }
+      replace(flatten())
+    else
+      nil
+    end
+  end
+
+  # Returns true if the set contains the given object.
+  def include?(o)
+    @hash.include?(o)
+  end
+  alias member? include?
+
+  # Returns true if the set is a superset of the given set.
+  def superset?(set)
+    set.is_a?(Set) or raise ArgumentError, "value must be a set"
+    return false if size < set.size
+    set.all? { |o| include?(o) }
+  end
+
+  # Returns true if the set is a proper superset of the given set.
+  def proper_superset?(set)
+    set.is_a?(Set) or raise ArgumentError, "value must be a set"
+    return false if size <= set.size
+    set.all? { |o| include?(o) }
+  end
+
+  # Returns true if the set is a subset of the given set.
+  def subset?(set)
+    set.is_a?(Set) or raise ArgumentError, "value must be a set"
+    return false if set.size < size
+    all? { |o| set.include?(o) }
+  end
+
+  # Returns true if the set is a proper subset of the given set.
+  def proper_subset?(set)
+    set.is_a?(Set) or raise ArgumentError, "value must be a set"
+    return false if set.size <= size
+    all? { |o| set.include?(o) }
+  end
+
+  # Calls the given block once for each element in the set, passing
+  # the element as parameter.
+  def each
+    @hash.each_key { |o| yield(o) }
+    self
+  end
+
+  # Adds the given object to the set and returns self.  Use +merge+ to
+  # add several elements at once.
+  def add(o)
+    @hash[o] = true
+    self
+  end
+  alias << add
+
+  # Adds the given object to the set and returns self.  If the
+  # object is already in the set, returns nil.
+  def add?(o)
+    if include?(o)
+      nil
+    else
+      add(o)
+    end
+  end
+
+  # Deletes the given object from the set and returns self.  Use +subtract+ to
+  # delete several items at once.
+  def delete(o)
+    @hash.delete(o)
+    self
+  end
+
+  # Deletes the given object from the set and returns self.  If the
+  # object is not in the set, returns nil.
+  def delete?(o)
+    if include?(o)
+      delete(o)
+    else
+      nil
+    end
+  end
+
+  # Deletes every element of the set for which block evaluates to
+  # true, and returns self.
+  def delete_if
+    @hash.delete_if { |o,| yield(o) }
+    self
+  end
+
+  # Do collect() destructively.
+  def collect!
+    set = self.class.new
+    each { |o| set << yield(o) }
+    replace(set)
+  end
+  alias map! collect!
+
+  # Equivalent to Set#delete_if, but returns nil if no changes were
+  # made.
+  def reject!
+    n = size
+    delete_if { |o| yield(o) }
+    size == n ? nil : self
+  end
+
+  # Merges the elements of the given enumerable object to the set and
+  # returns self.
+  def merge(enum)
+    if enum.is_a?(Set)
+      @hash.update(enum.instance_eval { @hash })
+    else
+      enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+      enum.each { |o| add(o) }
+    end
+
+    self
+  end
+
+  # Deletes every element that appears in the given enumerable object
+  # and returns self.
+  def subtract(enum)
+    enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+    enum.each { |o| delete(o) }
+    self
+  end
+
+  # Returns a new set built by merging the set and the elements of the
+  # given enumerable object.
+  def |(enum)
+    enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+    dup.merge(enum)
+  end
+  alias + |		##
+  alias union |		##
+
+  # Returns a new set built by duplicating the set, removing every
+  # element that appears in the given enumerable object.
+  def -(enum)
+    enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+    dup.subtract(enum)
+  end
+  alias difference -	##
+
+  # Returns a new array containing elements common to the set and the
+  # given enumerable object.
+  def &(enum)
+    enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+    n = self.class.new
+    enum.each { |o| n.add(o) if include?(o) }
+    n
+  end
+  alias intersection &	##
+
+  # Returns a new array containing elements exclusive between the set
+  # and the given enumerable object.  (set ^ enum) is equivalent to
+  # ((set | enum) - (set & enum)).
+  def ^(enum)
+    enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+    n = dup
+    enum.each { |o| if n.include?(o) then n.delete(o) else n.add(o) end }
+    n
+  end
+
+  # Returns true if two sets are equal.  The equality of each couple
+  # of elements is defined according to Object#eql?.
+  def ==(set)
+    equal?(set) and return true
+
+    set.is_a?(Set) && size == set.size or return false
+
+    hash = @hash.dup
+    set.all? { |o| hash.include?(o) }
+  end
+
+  def hash	# :nodoc:
+    @hash.hash
+  end
+
+  def eql?(o)	# :nodoc:
+    return false unless o.is_a?(Set)
+    @hash.eql?(o.instance_eval{@hash})
+  end
+
+  # Classifies the set by the return value of the given block and
+  # returns a hash of {value => set of elements} pairs.  The block is
+  # called once for each element of the set, passing the element as
+  # parameter.
+  #
+  # e.g.:
+  #
+  #   require 'set'
+  #   files = Set.new(Dir.glob("*.rb"))
+  #   hash = files.classify { |f| File.mtime(f).year }
+  #   p hash    # => {2000=>#<Set: {"a.rb", "b.rb"}>,
+  #             #     2001=>#<Set: {"c.rb", "d.rb", "e.rb"}>,
+  #             #     2002=>#<Set: {"f.rb"}>}
+  def classify # :yields: o
+    h = {}
+
+    each { |i|
+      x = yield(i)
+      (h[x] ||= self.class.new).add(i)
+    }
+
+    h
+  end
+
+  # Divides the set into a set of subsets according to the commonality
+  # defined by the given block.
+  #
+  # If the arity of the block is 2, elements o1 and o2 are in common
+  # if block.call(o1, o2) is true.  Otherwise, elements o1 and o2 are
+  # in common if block.call(o1) == block.call(o2).
+  #
+  # e.g.:
+  #
+  #   require 'set'
+  #   numbers = Set[1, 3, 4, 6, 9, 10, 11]
+  #   set = numbers.divide { |i,j| (i - j).abs == 1 }
+  #   p set     # => #<Set: {#<Set: {1}>,
+  #             #            #<Set: {11, 9, 10}>,
+  #             #            #<Set: {3, 4}>,
+  #             #            #<Set: {6}>}>
+  def divide(&func)
+    if func.arity == 2
+      require 'tsort'
+
+      class << dig = {}		# :nodoc:
+	include TSort
+
+	alias tsort_each_node each_key
+	def tsort_each_child(node, &block)
+	  fetch(node).each(&block)
+	end
+      end
+
+      each { |u|
+	dig[u] = a = []
+	each{ |v| func.call(u, v) and a << v }
+      }
+
+      set = Set.new()
+      dig.each_strongly_connected_component { |css|
+	set.add(self.class.new(css))
+      }
+      set
+    else
+      Set.new(classify(&func).values)
+    end
+  end
+
+  InspectKey = :__inspect_key__         # :nodoc:
+
+  # Returns a string containing a human-readable representation of the
+  # set. ("#<Set: {element1, element2, ...}>")
+  def inspect
+    ids = (Thread.current[InspectKey] ||= [])
+
+    if ids.include?(object_id)
+      return sprintf('#<%s: {...}>', self.class.name)
+    end
+
+    begin
+      ids << object_id
+      return sprintf('#<%s: {%s}>', self.class, to_a.inspect[1..-2])
+    ensure
+      ids.pop
+    end
+  end
+
+  def pretty_print(pp)	# :nodoc:
+    pp.text sprintf('#<%s: {', self.class.name)
+    pp.nest(1) {
+      pp.seplist(self) { |o|
+	pp.pp o
+      }
+    }
+    pp.text "}>"
+  end
+
+  def pretty_print_cycle(pp)	# :nodoc:
+    pp.text sprintf('#<%s: {%s}>', self.class.name, empty? ? '' : '...')
+  end
+end
+
+# SortedSet implements a set which elements are sorted in order.  See Set.
+class SortedSet < Set
+  @@setup = false
+
+  class << self
+    def [](*ary)	# :nodoc:
+      new(ary)
+    end
+
+    def setup	# :nodoc:
+      @@setup and return
+
+      begin
+	require 'rbtree'
+
+	module_eval %{
+	  def initialize(*args, &block)
+	    @hash = RBTree.new
+	    super
+	  end
+	}
+      rescue LoadError
+	module_eval %{
+	  def initialize(*args, &block)
+	    @keys = nil
+	    super
+	  end
+
+	  def clear
+	    @keys = nil
+	    super
+	  end
+
+	  def replace(enum)
+	    @keys = nil
+	    super
+	  end
+
+	  def add(o)
+	    @keys = nil
+	    @hash[o] = true
+	    self
+	  end
+	  alias << add
+
+	  def delete(o)
+	    @keys = nil
+	    @hash.delete(o)
+	    self
+	  end
+
+	  def delete_if
+	    n = @hash.size
+	    @hash.delete_if { |o,| yield(o) }
+	    @keys = nil if @hash.size != n
+	    self
+	  end
+
+	  def merge(enum)
+	    @keys = nil
+	    super
+	  end
+
+	  def each
+	    to_a.each { |o| yield(o) }
+	  end
+
+	  def to_a
+	    (@keys = @hash.keys).sort! unless @keys
+	    @keys
+	  end
+	}
+      end
+
+      @@setup = true
+    end
+  end
+
+  def initialize(*args, &block)	# :nodoc:
+    SortedSet.setup
+    initialize(*args, &block)
+  end
+end
+
+module Enumerable
+  # Makes a set from the enumerable object with given arguments.
+  def to_set(klass = Set, *args, &block)
+    klass.new(self, *args, &block)
+  end
+end
+
+# =begin
+# == RestricedSet class
+# RestricedSet implements a set with restrictions defined by a given
+# block.
+#
+# === Super class
+#     Set
+#
+# === Class Methods
+# --- RestricedSet::new(enum = nil) { |o| ... }
+# --- RestricedSet::new(enum = nil) { |rset, o| ... }
+#     Creates a new restricted set containing the elements of the given
+#     enumerable object.  Restrictions are defined by the given block.
+#
+#     If the block's arity is 2, it is called with the RestrictedSet
+#     itself and an object to see if the object is allowed to be put in
+#     the set.
+#
+#     Otherwise, the block is called with an object to see if the object
+#     is allowed to be put in the set.
+#
+# === Instance Methods
+# --- restriction_proc
+#     Returns the restriction procedure of the set.
+#
+# =end
+#
+# class RestricedSet < Set
+#   def initialize(*args, &block)
+#     @proc = block or raise ArgumentError, "missing a block"
+#
+#     if @proc.arity == 2
+#       instance_eval %{
+# 	def add(o)
+# 	  @hash[o] = true if @proc.call(self, o)
+# 	  self
+# 	end
+# 	alias << add
+#
+# 	def add?(o)
+# 	  if include?(o) || !@proc.call(self, o)
+# 	    nil
+# 	  else
+# 	    @hash[o] = true
+# 	    self
+# 	  end
+# 	end
+#
+# 	def replace(enum)
+# 	  enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+# 	  clear
+# 	  enum.each { |o| add(o) }
+#
+# 	  self
+# 	end
+#
+# 	def merge(enum)
+# 	  enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
+# 	  enum.each { |o| add(o) }
+#
+# 	  self
+# 	end
+#       }
+#     else
+#       instance_eval %{
+# 	def add(o)
+#         if @proc.call(o)
+# 	    @hash[o] = true
+#         end
+# 	  self
+# 	end
+# 	alias << add
+#
+# 	def add?(o)
+# 	  if include?(o) || !@proc.call(o)
+# 	    nil
+# 	  else
+# 	    @hash[o] = true
+# 	    self
+# 	  end
+# 	end
+#       }
+#     end
+#
+#     super(*args)
+#   end
+#
+#   def restriction_proc
+#     @proc
+#   end
+# end
+
+if $0 == __FILE__
+  eval DATA.read, nil, $0, __LINE__+4
+end
+
+# = rweb - CGI Support Library
+#
+# Author:: Johannes Barre (mailto:rweb@igels.net)
+# Copyright:: Copyright (c) 2003, 04 by Johannes Barre
+# License:: GNU Lesser General Public License (COPYING, http://www.gnu.org/copyleft/lesser.html)
+# Version:: 0.1.0
+# CVS-ID:: $Id: rweb.rb 6 2004-06-16 15:56:26Z igel $
+#
+# == What is Rweb?
+# Rweb is a replacement for the cgi class included in the ruby distribution.
+#
+# == How to use
+#
+# === Basics
+#
+# This class is made to be as easy as possible to use. An example:
+#
+# 	require "rweb"
+#
+# 	web = Rweb.new
+# 	web.out do
+# 		web.puts "Hello world!"
+# 	end
+#
+# The visitor will get a simple "Hello World!" in his browser. Please notice,
+# that won't set html-tags for you, so you should better do something like this:
+#
+# 	require "rweb"
+#
+# 	web = Rweb.new
+# 	web.out do
+# 		web.puts "<html><body>Hello world!</body></html>"
+# 	end
+#
+# === Set headers
+# Of course, it's also possible to tell the browser, that the content of this
+# page is plain text instead of html code:
+#
+# 	require "rweb"
+#
+# 	web = Rweb.new
+# 	web.out do
+# 		web.header("content-type: text/plain")
+# 		web.puts "Hello plain world!"
+# 	end
+#
+# Please remember, headers can't be set after the page content has been send.
+# You have to set all nessessary headers before the first puts oder print. It's
+# possible to cache the content until everything is complete. Doing it this
+# way, you can set headers everywhere.
+#
+# If you set a header twice, the second header will replace the first one. The
+# header name is not casesensitive, it will allways converted in to the
+# capitalised form suggested by the w3c (http://w3.org)
+#
+# === Set cookies
+# Setting cookies is quite easy:
+# 	include 'rweb'
+#
+# 	web = Rweb.new
+# 	Cookie.new("Visits", web.cookies['visits'].to_i +1)
+# 	web.out do
+# 		web.puts "Welcome back! You visited this page #{web.cookies['visits'].to_i +1} times"
+# 	end
+#
+# See the class Cookie for more details.
+#
+# === Get form and cookie values
+# There are four ways to submit data from the browser to the server and your
+# ruby script: via GET, POST, cookies and file upload. Rweb doesn't support
+# file upload by now.
+#
+# 	include 'rweb'
+#
+# 	web = Rweb.new
+# 	web.out do
+# 		web.print "action: #{web.get['action']} "
+# 		web.puts "The value of the cookie 'visits' is #{web.cookies['visits']}"
+# 		web.puts "The post parameter 'test['x']' is #{web.post['test']['x']}"
+# 	end
+
+RWEB_VERSION = "0.1.0"
+RWEB = "rweb/#{RWEB_VERSION}"
+
+#require 'rwebcookie' -> edit by bunny :-)
+
+class Rweb
+    # All parameter submitted via the GET method are available in attribute
+		# get. This is Hash, where every parameter is available as a key-value
+		# pair.
+		#
+		# If your input tag has a name like this one, it's value will be available
+		# as web.get["fieldname"]
+		#  <input name="fieldname">
+		# You can submit values as a Hash
+		#  <input name="text['index']">
+		#  <input name="text['index2']">
+		# will be available as
+		#  web.get["text"]["index"]
+		#  web.get["text"]["index2"]
+		# Integers are also possible
+		#  <input name="int[2]">
+		#  <input name="int[3]['hi']>
+		# will be available as
+		#  web.get["int"][2]
+		#  web.get["int"][3]["hi"]
+		# If you specify no index, the lowest unused index will be used:
+		#  <input name="int[]"><!-- First Field -->
+		#  <input name="int[]"><!-- Second one -->
+		# will be available as
+		#  web.get["int"][0] # First Field
+		#  web.get["int"][1] # Second one
+		# Please notice, this doesn'd work like you might expect:
+		#  <input name="text[index]">
+		# It will not be available as web.get["text"]["index"] but
+		#  web.get["text[index]"]
+    attr_reader :get
+
+    # All parameters submitted via POST are available in the attribute post. It
+		# works like the get attribute.
+		#  <input name="text[0]">
+		# will be available as
+		#  web.post["text"][0]
+		attr_reader :post
+
+    # All cookies submitted by the browser are available in cookies. This is a
+		# Hash, where every cookie is a key-value pair.
+		attr_reader :cookies
+
+    # The name of the browser identification is submitted as USER_AGENT and
+		# available in this attribute.
+		attr_reader :user_agent
+
+    # The IP address of the client.
+		attr_reader :remote_addr
+
+    # Creates a new Rweb object. This should only done once. You can set various
+    # options via the settings hash.
+    #
+    # "cache" => true: Everything you script send to the client will be cached
+    # until the end of the out block or until flush is called. This way, you
+    # can modify headers and cookies even after printing something to the client.
+    #
+    # "safe" => level: Changes the $SAFE attribute. By default, $SAFE will be set
+    # to 1. If $SAFE is already higher than this value, it won't be changed.
+    #
+    # "silend" => true: Normaly, Rweb adds automaticly a header like this
+    # "X-Powered-By: Rweb/x.x.x (Ruby/y.y.y)". With the silend option you can
+    # suppress this.
+    def initialize (settings = {})
+        # {{{
+        @header = {}
+        @cookies = {}
+        @get = {}
+        @post = {}
+
+        # Internal attributes
+        @status = nil
+        @reasonPhrase = nil
+        @setcookies = []
+        @output_started = false;
+        @output_allowed = false;
+
+        @mod_ruby = false
+        @env = ENV.to_hash
+
+        if defined?(MOD_RUBY)
+            @output_method = "mod_ruby"
+            @mod_ruby = true
+        elsif @env['SERVER_SOFTWARE'] =~ /^Microsoft-IIS/i
+            @output_method = "nph"
+        else
+            @output_method = "ph"
+        end
+
+        unless settings.is_a?(Hash)
+            raise TypeError, "settings must be a Hash"
+        end
+        @settings = settings
+
+        unless @settings.has_key?("safe")
+            @settings["safe"] = 1
+        end
+
+        if $SAFE < @settings["safe"]
+            $SAFE = @settings["safe"]
+        end
+
+        unless @settings.has_key?("cache")
+            @settings["cache"] = false
+        end
+
+        # mod_ruby sets no QUERY_STRING variable, if no GET-Parameters are given
+        unless @env.has_key?("QUERY_STRING")
+            @env["QUERY_STRING"] = ""
+        end
+
+        # Now we split the QUERY_STRING by the seperators & and ; or, if
+        # specified, settings['get seperator']
+        unless @settings.has_key?("get seperator")
+            get_args = @env['QUERY_STRING'].split(/[&;]/)
+        else
+            get_args = @env['QUERY_STRING'].split(@settings['get seperator'])
+        end
+
+        get_args.each do | arg |
+            arg_key, arg_val = arg.split(/=/, 2)
+            arg_key = Rweb::unescape(arg_key)
+            arg_val = Rweb::unescape(arg_val)
+
+            # Parse names like name[0], name['text'] or name[]
+            pattern = /^(.+)\[("[^\]]*"|'[^\]]*'|[0-9]*)\]$/
+            keys = []
+            while match = pattern.match(arg_key)
+                arg_key = match[1]
+                keys = [match[2]] + keys
+            end
+            keys = [arg_key] + keys
+
+            akt = @get
+            last = nil
+            lastkey = nil
+            keys.each do |key|
+                if key == ""
+                    # No key specified (like in "test[]"), so we use the
+                    # lowerst unused Integer as key
+                    key = 0
+                    while akt.has_key?(key)
+                        key += 1
+                    end
+                elsif /^[0-9]*$/ =~ key
+                    # If the index is numerical convert it to an Integer
+                    key = key.to_i
+                elsif key[0].chr == "'" || key[0].chr == '"'
+                    key = key[1, key.length() -2]
+                end
+                if !akt.has_key?(key) || !akt[key].class == Hash
+                    # create an empty Hash if there isn't already one
+                    akt[key] = {}
+                end
+                last = akt
+                lastkey = key
+                akt = akt[key]
+            end
+            last[lastkey] = arg_val
+        end
+
+        if @env['REQUEST_METHOD'] == "POST"
+            if @env.has_key?("CONTENT_TYPE") && @env['CONTENT_TYPE'] == "application/x-www-form-urlencoded" && @env.has_key?('CONTENT_LENGTH')
+                unless @settings.has_key?("post seperator")
+                    post_args = $stdin.read(@env['CONTENT_LENGTH'].to_i).split(/[&;]/)
+                else
+                    post_args = $stdin.read(@env['CONTENT_LENGTH'].to_i).split(@settings['post seperator'])
+                end
+                post_args.each do | arg |
+                    arg_key, arg_val = arg.split(/=/, 2)
+                    arg_key = Rweb::unescape(arg_key)
+                    arg_val = Rweb::unescape(arg_val)
+
+                    # Parse names like name[0], name['text'] or name[]
+                    pattern = /^(.+)\[("[^\]]*"|'[^\]]*'|[0-9]*)\]$/
+                    keys = []
+                    while match = pattern.match(arg_key)
+                        arg_key = match[1]
+                        keys = [match[2]] + keys
+                    end
+                    keys = [arg_key] + keys
+
+                    akt = @post
+                    last = nil
+                    lastkey = nil
+                    keys.each do |key|
+                        if key == ""
+                            # No key specified (like in "test[]"), so we use
+                            # the lowerst unused Integer as key
+                            key = 0
+                            while akt.has_key?(key)
+                                key += 1
+                            end
+                        elsif /^[0-9]*$/ =~ key
+                            # If the index is numerical convert it to an Integer
+                            key = key.to_i
+                        elsif key[0].chr == "'" || key[0].chr == '"'
+                            key = key[1, key.length() -2]
+                        end
+                        if !akt.has_key?(key) || !akt[key].class == Hash
+                            # create an empty Hash if there isn't already one
+                            akt[key] = {}
+                        end
+                        last = akt
+                        lastkey = key
+                        akt = akt[key]
+                    end
+                    last[lastkey] = arg_val
+                end
+            else
+                # Maybe we should print a warning here?
+                $stderr.print("Unidentified form data recived and discarded.")
+            end
+        end
+
+        if @env.has_key?("HTTP_COOKIE")
+            cookie = @env['HTTP_COOKIE'].split(/; ?/)
+            cookie.each do | c |
+                cookie_key, cookie_val = c.split(/=/, 2)
+
+                @cookies [Rweb::unescape(cookie_key)] = Rweb::unescape(cookie_val)
+            end
+        end
+
+        if defined?(@env['HTTP_USER_AGENT'])
+            @user_agent = @env['HTTP_USER_AGENT']
+        else
+            @user_agent = nil;
+        end
+
+        if defined?(@env['REMOTE_ADDR'])
+            @remote_addr = @env['REMOTE_ADDR']
+        else
+            @remote_addr = nil
+        end
+        # }}}
+    end
+
+    # Prints a String to the client. If caching is enabled, the String will
+    # buffered until the end of the out block ends.
+    def print(str = "")
+        # {{{
+        unless @output_allowed
+            raise "You just can write to output inside of a Rweb::out-block"
+        end
+
+        if @settings["cache"]
+            @buffer += [str.to_s]
+        else
+            unless @output_started
+                sendHeaders
+            end
+            $stdout.print(str)
+        end
+        nil
+        # }}}
+    end
+
+    # Prints a String to the client and adds a line break at the end. Please
+		# remember, that a line break is not visible in HTML, use the <br> HTML-Tag
+		# for this. If caching is enabled, the String will buffered until the end
+		# of the out block ends.
+    def puts(str = "")
+        # {{{
+        self.print(str + "\n")
+        # }}}
+    end
+
+		# Alias to print.
+    def write(str = "")
+        # {{{
+        self.print(str)
+        # }}}
+    end
+
+    # If caching is enabled, all cached data are send to the cliend and the
+		# cache emptied.
+    def flush
+        # {{{
+        unless @output_allowed
+            raise "You can't use flush outside of a Rweb::out-block"
+        end
+        buffer = @buffer.join
+
+        unless @output_started
+            sendHeaders
+        end
+        $stdout.print(buffer)
+
+        @buffer = []
+        # }}}
+    end
+
+    # Sends one or more header to the client. All headers are cached just
+		# before body data are send to the client. If the same header are set
+		# twice, only the last value is send.
+		#
+		# Example:
+		#  web.header("Last-Modified: Mon, 16 Feb 2004 20:15:41 GMT")
+		#  web.header("Location: http://www.ruby-lang.org")
+		#
+		# You can specify more than one header at the time by doing something like
+		# this:
+		#  web.header("Content-Type: text/plain\nContent-Length: 383")
+		# or
+		#  web.header(["Content-Type: text/plain", "Content-Length: 383"])
+    def header(str)
+        # {{{
+        if @output_started
+            raise "HTTP-Headers are already send. You can't change them after output has started!"
+        end
+        unless @output_allowed
+            raise "You just can set headers inside of a Rweb::out-block"
+        end
+        if str.is_a?Array
+            str.each do | value |
+                self.header(value)
+            end
+
+        elsif str.split(/\n/).length > 1
+            str.split(/\n/).each do | value |
+                self.header(value)
+            end
+
+        elsif str.is_a? String
+            str.gsub!(/\r/, "")
+
+            if (str =~ /^HTTP\/1\.[01] [0-9]{3} ?.*$/) == 0
+                pattern = /^HTTP\/1.[01] ([0-9]{3}) ?(.*)$/
+
+                result = pattern.match(str)
+                self.setstatus(result[0], result[1])
+            elsif (str =~ /^status: [0-9]{3} ?.*$/i) == 0
+                pattern = /^status: ([0-9]{3}) ?(.*)$/i
+
+                result = pattern.match(str)
+                self.setstatus(result[0], result[1])
+            else
+                a = str.split(/: ?/, 2)
+
+                @header[a[0].downcase] = a[1]
+            end
+        end
+        # }}}
+    end
+
+    # Changes the status of this page. There are several codes like "200 OK",
+		# "302 Found", "404 Not Found" or "500 Internal Server Error". A list of
+		# all codes is available at
+		# http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10
+		#
+		# You can just send the code number, the reason phrase will be added
+		# automaticly with the recommendations from the w3c if not specified. If
+		# you set the status twice or more, only the last status will be send.
+		# Examples:
+		#  web.status("401 Unauthorized")
+		#  web.status("410 Sad but true, this lonely page is gone :(")
+		#  web.status(206)
+		#  web.status("400")
+		#
+		# The default status is "200 OK". If a "Location" header is set, the
+		# default status is "302 Found".
+    def status(str)
+        # {{{
+        if @output_started
+            raise "HTTP-Headers are already send. You can't change them after output has started!"
+        end
+        unless @output_allowed
+            raise "You just can set headers inside of a Rweb::out-block"
+        end
+        if str.is_a?Integer
+            @status = str
+        elsif str.is_a?String
+            p1 = /^([0-9]{3}) ?(.*)$/
+            p2 = /^HTTP\/1\.[01] ([0-9]{3}) ?(.*)$/
+            p3 = /^status: ([0-9]{3}) ?(.*)$/i
+
+            if (a = p1.match(str)) == nil
+                if (a = p2.match(str)) == nil
+                    if (a = p3.match(str)) == nil
+                        raise ArgumentError, "Invalid argument", caller
+                    end
+                end
+            end
+            @status = a[1].to_i
+            if a[2] != ""
+                @reasonPhrase = a[2]
+            else
+                @reasonPhrase = getReasonPhrase(@status)
+            end
+        else
+            raise ArgumentError, "Argument of setstatus must be integer or string", caller
+        end
+        # }}}
+    end
+
+    # Handles the output of your content and rescues all exceptions. Send all
+		# data in the block to this method. For example:
+		#  web.out do
+		#      web.header("Content-Type: text/plain")
+		#      web.puts("Hello, plain world!")
+		#  end
+    def out
+        # {{{
+        @output_allowed = true
+        @buffer = []; # We use an array as buffer, because it's more performant :)
+
+        begin
+            yield
+        rescue Exception => exception
+            $stderr.puts "Ruby exception rescued (#{exception.class}): #{exception.message}"
+            $stderr.puts exception.backtrace.join("\n")
+
+            unless @output_started
+                self.setstatus(500)
+                @header = {}
+            end
+
+            unless (@settings.has_key?("hide errors") and @settings["hide errors"] == true)
+                unless @output_started
+                    self.header("Content-Type: text/html")
+                    self.puts "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Strict//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">"
+                    self.puts "<html>"
+                    self.puts "<head>"
+                    self.puts "<title>500 Internal Server Error</title>"
+                    self.puts "</head>"
+                    self.puts "<body>"
+                end
+                if @header.has_key?("content-type") and (@header["content-type"] =~ /^text\/html/i) == 0
+                    self.puts "<h1>Internal Server Error</h1>"
+                    self.puts "<p>The server encountered an exception and was unable to complete your request.</p>"
+                    self.puts "<p>The exception has provided the following information:</p>"
+                    self.puts "<pre style=\"background: #FFCCCC; border: black solid 2px; margin-left: 2cm; margin-right: 2cm; padding: 2mm;\"><b>#{exception.class}</b>: #{exception.message} <b>on</b>"
+                    self.puts
+                    self.puts "#{exception.backtrace.join("\n")}</pre>"
+                    self.puts "</body>"
+                    self.puts "</html>"
+                else
+                    self.puts "The server encountered an exception and was unable to complete your request"
+                    self.puts "The exception has provided the following information:"
+                    self.puts "#{exception.class}: #{exception.message}"
+                    self.puts
+                    self.puts exception.backtrace.join("\n")
+                end
+            end
+        end
+
+        if @settings["cache"]
+            buffer = @buffer.join
+
+            unless @output_started
+                unless @header.has_key?("content-length")
+                    self.header("content-length: #{buffer.length}")
+                end
+
+                sendHeaders
+            end
+            $stdout.print(buffer)
+        elsif !@output_started
+            sendHeaders
+        end
+        @output_allowed = false;
+        # }}}
+    end
+
+    # Decodes URL encoded data, %20 for example stands for a space.
+    def Rweb.unescape(str)
+        # {{{
+        if defined? str and str.is_a? String
+            str.gsub!(/\+/, " ")
+            str.gsub(/%.{2}/) do | s |
+                s[1,2].hex.chr
+            end
+        end
+        # }}}
+    end
+
+    protected
+    def sendHeaders
+        # {{{
+
+        Cookie.disallow # no more cookies can be set or modified
+        if !(@settings.has_key?("silent") and @settings["silent"] == true) and !@header.has_key?("x-powered-by")
+            if @mod_ruby
+                header("x-powered-by: #{RWEB} (Ruby/#{RUBY_VERSION}, #{MOD_RUBY})");
+            else
+                header("x-powered-by: #{RWEB} (Ruby/#{RUBY_VERSION})");
+            end
+        end
+
+        if @output_method == "ph"
+            if ((@status == nil or @status == 200) and !@header.has_key?("content-type") and !@header.has_key?("location"))
+                header("content-type: text/html")
+            end
+
+            if @status != nil
+                $stdout.print "Status: #{@status} #{@reasonPhrase}\r\n"
+            end
+
+            @header.each do |key, value|
+                key = key *1 # "unfreeze" key :)
+                key[0] = key[0,1].upcase![0]
+
+                key = key.gsub(/-[a-z]/) do |char|
+                    "-" + char[1,1].upcase
+                end
+
+                $stdout.print "#{key}: #{value}\r\n"
+            end
+            cookies = Cookie.getHttpHeader # Get all cookies as an HTTP Header
+            if cookies
+                $stdout.print cookies
+            end
+
+            $stdout.print "\r\n"
+
+        elsif @output_method == "nph"
+        elsif @output_method == "mod_ruby"
+            r = Apache.request
+
+            if ((@status == nil or @status == 200) and !@header.has_key?("content-type") and !@header.has_key?("location"))
+                header("text/html")
+            end
+
+            if @status != nil
+                r.status_line = "#{@status} #{@reasonPhrase}"
+            end
+
+            r.send_http_header
+            @header.each do |key, value|
+                key = key *1 # "unfreeze" key :)
+
+                key[0] = key[0,1].upcase![0]
+                key = key.gsub(/-[a-z]/) do |char|
+                    "-" + char[1,1].upcase
+                end
+                puts "#{key}: #{value.class}"
+                #r.headers_out[key] = value
+            end
+        end
+        @output_started = true
+        # }}}
+    end
+
+    def getReasonPhrase (status)
+        # {{{
+        if status == 100
+            "Continue"
+        elsif status == 101
+            "Switching Protocols"
+        elsif status == 200
+            "OK"
+        elsif status == 201
+            "Created"
+        elsif status == 202
+            "Accepted"
+        elsif status == 203
+            "Non-Authoritative Information"
+        elsif status == 204
+            "No Content"
+        elsif status == 205
+            "Reset Content"
+        elsif status == 206
+            "Partial Content"
+        elsif status == 300
+            "Multiple Choices"
+        elsif status == 301
+            "Moved Permanently"
+        elsif status == 302
+            "Found"
+        elsif status == 303
+            "See Other"
+        elsif status == 304
+            "Not Modified"
+        elsif status == 305
+            "Use Proxy"
+        elsif status == 307
+            "Temporary Redirect"
+        elsif status == 400
+            "Bad Request"
+        elsif status == 401
+            "Unauthorized"
+        elsif status == 402
+            "Payment Required"
+        elsif status == 403
+            "Forbidden"
+        elsif status == 404
+            "Not Found"
+        elsif status == 405
+            "Method Not Allowed"
+        elsif status == 406
+            "Not Acceptable"
+        elsif status == 407
+            "Proxy Authentication Required"
+        elsif status == 408
+            "Request Time-out"
+        elsif status == 409
+            "Conflict"
+        elsif status == 410
+            "Gone"
+        elsif status == 411
+            "Length Required"
+        elsif status == 412
+            "Precondition Failed"
+        elsif status == 413
+            "Request Entity Too Large"
+        elsif status == 414
+            "Request-URI Too Large"
+        elsif status == 415
+            "Unsupported Media Type"
+        elsif status == 416
+            "Requested range not satisfiable"
+        elsif status == 417
+            "Expectation Failed"
+        elsif status == 500
+            "Internal Server Error"
+        elsif status == 501
+            "Not Implemented"
+        elsif status == 502
+            "Bad Gateway"
+        elsif status == 503
+            "Service Unavailable"
+        elsif status == 504
+            "Gateway Time-out"
+        elsif status == 505
+            "HTTP Version not supported"
+        else
+            raise "Unknown Statuscode. See http://www.w3.org/Protocols/rfc2616/rfc2616-sec6.html#sec6.1 for more information."
+        end
+        # }}}
+    end
+end
+
+class Cookie
+	attr_reader :name, :value, :maxage, :path, :domain, :secure, :comment
+
+	# Sets a cookie. Please see below for details of the attributes.
+	def initialize (name, value = nil, maxage = nil, path = nil, domain = nil, secure = false)
+		# {{{
+		# HTTP headers (Cookies are a HTTP header) can only set, while no content
+		# is send. So an exception will be raised, when @@allowed is set to false
+		# and a new cookie has set.
+		unless defined?(@@allowed)
+			@@allowed = true
+		end
+		unless @@allowed
+			raise "You can't set cookies after the HTTP headers are send."
+		end
+
+		unless defined?(@@list)
+			@@list = []
+		end
+		@@list += [self]
+
+		unless defined?(@@type)
+			@@type = "netscape"
+		end
+
+		unless name.class == String
+			raise TypeError, "The name of a cookie must be a string", caller
+		end
+		if value.class.superclass == Integer || value.class == Float
+			value = value.to_s
+		elsif value.class != String && value != nil
+			raise TypeError, "The value of a cookie must be a string, integer, float or nil", caller
+		end
+		if maxage.class == Time
+			maxage = maxage - Time.now
+		elsif !maxage.class.superclass == Integer  || !maxage == nil
+			raise TypeError, "The maxage date of a cookie must be an Integer or Time object or nil.", caller
+		end
+		unless path.class == String  || path == nil
+			raise TypeError, "The path of a cookie must be nil or a string", caller
+		end
+		unless domain.class == String  || domain == nil
+			raise TypeError, "The value of a cookie must be nil or a string", caller
+		end
+		unless secure == true  || secure == false
+			raise TypeError, "The secure field of a cookie must be true or false", caller
+		end
+
+		@name, @value, @maxage, @path, @domain, @secure = name, value, maxage, path, domain, secure
+		@comment = nil
+		# }}}
+	end
+
+	# Modifies the value of this cookie. The information you want to store. If the
+	# value is nil, the cookie will be deleted by the client.
+	#
+	# This attribute can be a String, Integer or Float object or nil.
+	def value=(value)
+		# {{{
+		if value.class.superclass == Integer || value.class == Float
+			value = value.to_s
+		elsif value.class != String && value != nil
+			raise TypeError, "The value of a cookie must be a string, integer, float or nil", caller
+		end
+		@value = value
+		# }}}
+	end
+
+	# Modifies the maxage of this cookie. This attribute defines the lifetime of
+	# the cookie, in seconds. A value of 0 means the cookie should be discarded
+	# imediatly. If it set to nil, the cookie will be deleted when the browser
+	# will be closed.
+	#
+	# Attention: This is different from other implementations like PHP, where you
+	# gives the seconds since 1/1/1970 0:00:00 GMT.
+	#
+	# This attribute must be an Integer or Time object or nil.
+	def maxage=(maxage)
+		# {{{
+		if maxage.class == Time
+			maxage = maxage - Time.now
+		elsif maxage.class.superclass == Integer  || !maxage == nil
+			raise TypeError, "The maxage of a cookie must be an Interger or Time object or nil.", caller
+		end
+		@maxage = maxage
+		# }}}
+	end
+
+	# Modifies the path value of this cookie. The client will send this cookie
+	# only, if the requested document is this directory or a subdirectory of it.
+	#
+	# The value of the attribute must be a String object or nil.
+	def path=(path)
+		# {{{
+		unless path.class == String  || path == nil
+			raise TypeError, "The path of a cookie must be nil or a string", caller
+		end
+		@path = path
+		# }}}
+	end
+
+	# Modifies the domain value of this cookie. The client will send this cookie
+	# only if it's connected with this domain (or a subdomain, if the first
+	# character is a dot like in ".ruby-lang.org")
+	#
+	# The value of this attribute must be a String or nil.
+	def domain=(domain)
+		# {{{
+		unless domain.class == String  || domain == nil
+			raise TypeError, "The domain of a cookie must be a String or nil.", caller
+		end
+		@domain = domain
+		# }}}
+	end
+
+	# Modifies the secure flag of this cookie. If it's true, the client will only
+	# send this cookie if it is secured connected with us.
+	#
+	# The value od this attribute has to be true or false.
+	def secure=(secure)
+		# {{{
+		unless secure == true  || secure == false
+			raise TypeError, "The secure field of a cookie must be true or false", caller
+		end
+		@secure = secure
+		# }}}
+	end
+
+	# Modifies the comment value of this cookie. The comment won't be send, if
+	# type is "netscape".
+	def comment=(comment)
+		# {{{
+		unless comment.class == String || comment == nil
+			raise TypeError, "The comment of a cookie must be a string or nil", caller
+		end
+		@comment = comment
+		# }}}
+	end
+
+	# Changes the type of all cookies.
+	# Allowed values are RFC2109 and netscape (default).
+	def Cookie.type=(type)
+		# {{{
+		unless @@allowed
+			raise "The cookies are allready send, so you can't change the type anymore."
+		end
+		unless type.downcase == "rfc2109" && type.downcase == "netscape"
+			raise "The type of the cookies must be \"RFC2109\" or \"netscape\"."
+		end
+		@@type = type;
+		# }}}
+	end
+
+	# After sending this message, no cookies can be set or modified. Use it, when
+	# HTTP-Headers are send. Rweb does this for you.
+	def Cookie.disallow
+		# {{{
+		@@allowed = false
+		true
+		# }}}
+	end
+
+	# Returns a HTTP header (type String) with all cookies. Rweb does this for
+	# you.
+	def Cookie.getHttpHeader
+		# {{{
+		if defined?(@@list)
+			if @@type == "netscape"
+				str = ""
+				@@list.each do |cookie|
+					if cookie.value == nil
+						cookie.maxage = 0
+						cookie.value = ""
+					end
+					# TODO: Name and value should be escaped!
+					str += "Set-Cookie: #{cookie.name}=#{cookie.value}"
+					unless cookie.maxage == nil
+						expire = Time.now + cookie.maxage
+						expire.gmtime
+						str += "; Expire=#{expire.strftime("%a, %d-%b-%Y %H:%M:%S %Z")}"
+					end
+					unless cookie.domain == nil
+						str += "; Domain=#{cookie.domain}"
+					end
+					unless cookie.path == nil
+						str += "; Path=#{cookie.path}"
+					end
+					if cookie.secure
+						str += "; Secure"
+					end
+					str += "\r\n"
+				end
+				return str
+			else # type == "RFC2109"
+				str = "Set-Cookie: "
+				comma = false;
+
+				@@list.each do |cookie|
+					if cookie.value == nil
+						cookie.maxage = 0
+						cookie.value = ""
+					end
+					if comma
+						str += ","
+					end
+					comma = true
+
+					str += "#{cookie.name}=\"#{cookie.value}\""
+					unless cookie.maxage == nil
+						str += "; Max-Age=\"#{cookie.maxage}\""
+					end
+					unless cookie.domain == nil
+						str += "; Domain=\"#{cookie.domain}\""
+					end
+					unless cookie.path == nil
+						str += "; Path=\"#{cookie.path}\""
+					end
+					if cookie.secure
+						str += "; Secure"
+					end
+					unless cookie.comment == nil
+						str += "; Comment=\"#{cookie.comment}\""
+					end
+					str += "; Version=\"1\""
+				end
+				str
+			end
+		else
+			false
+		end
+		# }}}
+	end
+end
+
+require 'strscan'
+
+module BBCode
+	DEBUG = true
+
+	use 'encoder', 'tags', 'tagstack', 'smileys'
+
+=begin
+	The Parser class takes care of the encoding.
+	It scans the given BBCode (as plain text), finds tags
+	and smilies and also makes links of urls in text.
+
+	Normal text is send directly to the encoder.
+
+	If a tag was found, an instance of a Tag subclass is created
+	to handle the case.
+
+	The @tagstack manages tag nesting and ensures valid HTML.
+=end
+
+	class Parser
+		class Attribute
+			# flatten and use only one empty_arg
+			def self.create attr
+				attr = flatten attr
+				return @@empty_attr if attr.empty?
+				new attr
+			end
+
+			private_class_method :new
+
+			# remove leading and trailing whitespace; concat lines
+			def self.flatten attr
+				attr.strip.gsub(/\n/, ' ')
+				# -> ^ and $ can only match at begin and end now
+			end
+
+			ATTRIBUTE_SCAN = /
+				(?!$)  # don't match at end
+				\s*
+				( # $1 = key
+					[^=\s\]"\\]*
+					(?:
+						(?: \\. | "[^"\\]*(?:\\.[^"\\]*)*"? )
+						[^=\s\]"\\]*
+					)*
+				)
+				(?:
+					=
+					( # $2 = value
+						[^\s\]"\\]*
+						(?:
+							(?: \\. | "[^"\\]*(?:\\.[^"\\]*)*"? )
+							[^\s\]"\\]*
+						)*
+					)?
+				)?
+				\s*
+			/x
+
+			def self.parse source
+				source = source.dup
+				# empty_tag: the tag looks like [... /]
+				# slice!: this deletes the \s*/] at the end
+				# \s+ because [url=http://rubybb.org/forum/] is NOT an empty tag.
+				# In RubyBBCode, you can use [url=http://rubybb.org/forum/ /], and this has to be
+				# interpreted correctly.
+				empty_tag = source.sub!(/^:/, '=') or source.slice!(/\/$/)
+				debug 'PARSE: ' + source.inspect + ' => ' + empty_tag.inspect
+				#-> we have now an attr that's EITHER empty OR begins and ends with non-whitespace.
+
+				attr = Hash.new
+				attr[:flags] = []
+				source.scan(ATTRIBUTE_SCAN) { |key, value|
+					if not value
+						attr[:flags] << unescape(key)
+					else
+						next if value.empty? and key.empty?
+						attr[unescape(key)] = unescape(value)
+					end
+				}
+				debug attr.inspect
+
+				return empty_tag, attr
+			end
+
+			def self.unescape_char esc
+				esc[1]
+			end
+
+			def self.unquote qt
+				qt[1..-1].chomp('"').gsub(/\\./) { |esc| unescape_char esc }
+			end
+
+			def self.unescape str
+				str.gsub(/ (\\.) | (" [^"\\]* (?:\\.[^"\\]*)* "?) /x) {
+					if $1
+						unescape_char $1
+					else
+						unquote $2
+					end
+				}
+			end
+
+			include Enumerable
+			def each &block
+				@args.each(&block)
+			end
+
+			attr_reader :source, :args, :value
+
+			def initialize source
+				@source = source
+				debug 'Attribute#new(%p)' % source
+				@empty_tag, @attr = Attribute.parse source
+				@value = @attr[''].to_s
+			end
+
+			def empty?
+				self == @@empty_attr
+			end
+
+			def empty_tag?
+				@empty_tag
+			end
+
+			def [] *keys
+				res = @attr[*keys]
+			end
+
+			def flags
+				attr[:flags]
+			end
+
+			def to_s
+				@attr
+			end
+
+			def inspect
+				'ATTR[' + @attr.inspect + (@empty_tag ? ' | empty tag' : '') + ']'
+			end
+		end
+		class Attribute
+			@@empty_attr = new ''
+		end
+	end
+
+	class Parser
+		def Parser.flatten str
+			# replace mac & dos newlines with unix style
+			str.gsub(/\r\n?/, "\n")
+		end
+
+		def initialize input = ''
+			# input manager
+			@scanner = StringScanner.new ''
+			# output manager
+			@encoder = Encoder.new
+			@output = ''
+			# tag manager
+			@tagstack = TagStack.new(@encoder)
+
+			@do_magic = true
+			# set the input
+			feed input
+		end
+
+		# if you want, you can feed a parser instance after creating,
+		# or even feed it repeatedly.
+		def feed food
+			@scanner.string = Parser.flatten food
+		end
+
+		# parse through the string using parse_token
+		def parse
+			parse_token until @scanner.eos?
+			@tagstack.close_all
+			@output = parse_magic @encoder.output
+		end
+
+		def output
+			@output
+		end
+
+	# ok, internals start here
+	private
+		# the default output functions. everything should use them or the tags.
+		def add_text text = @scanner.matched
+			@encoder.add_text text
+		end
+
+		# use this carefully
+		def add_html html
+			@encoder.add_html html
+		end
+
+		# highlights the text as error
+		def add_garbage garbage
+			add_html '<span class="error">' if DEBUG
+			add_text garbage
+			add_html '</span>' if DEBUG
+		end
+
+		# unknown and incorrectly nested tags are ignored and
+		# sent as plaintext (garbage in - garbage out).
+		# in debug mode, garbage is marked with lime background.
+		def garbage_out start
+			@scanner.pos = start
+			garbage = @scanner.scan(/./m)
+			debug 'GARBAGE: ' + garbage
+			add_garbage garbage
+		end
+
+		# simple text; everything but [, \[ allowed
+		SIMPLE_TEXT_SCAN_ = /
+			[^\[\\]*    # normal*
+			(?:         # (
+			\\.?        #   special
+			[^\[\\]*    #   normal*
+			)*          # )*
+		/mx
+		SIMPLE_TEXT_SCAN = /[^\[]+/
+
+=begin
+
+	WHAT IS A TAG?
+	==============
+
+	Tags in BBCode can be much more than just a simple [b].
+	I use many terms here to differ the parts of each tag.
+
+	Basic scheme:
+	    [         code        ]
+	TAG START   TAG INFO   TAG END
+
+	Most tags need a second tag to close the range it opened.
+	This is done with CLOSING TAGS:
+		[/code]
+	or by using empty tags that have no content and close themselfes:
+		[url=winamp.com /]
+	You surely know this from HTML.
+	These slashes define the TAG KIND = normal|closing|empty and
+	cannot be	used together.
+
+	Everything between [ and ] and expluding the slashes is called the
+	TAG INFO.	This info may contain:
+	- TAG ID
+	- TAG NAME including the tag id
+	- attributes
+
+	The TAG ID is the first char of the info:
+
+	TAG       | ID
+	----------+----
+	[quote]   | q
+	[&plusmn] | &
+	["[b]"]   | "
+	[/url]    | u
+	[---]     | -
+
+	As you can see, the tag id shows the TAG TYPE, it can be a
+	normal tag,	a formatting tag or an entity.
+	Therefor, the parser first scans the id to decide how to go
+	on with parsing.
+=end
+		# tag
+		# TODO more complex expression allowing
+		#   [quote="[ladico]"] and [quote=\[ladico\]] to be correct tags
+		TAG_BEGIN_SCAN = /
+			\[             # tag start
+			( \/ )?        # $1 = closing tag?
+			( [^\]] )      # $2 = tag id
+		/x
+		TAG_END_SCAN = /
+			[^\]]*         # rest that was not handled
+			\]?            # tag end
+		/x
+		CLOSE_TAG_SCAN = /
+			( [^\]]* )     # $1 = the rest of the tag info
+			( \/ )?        # $2 = empty tag?
+			\]?            # tag end
+		/x
+		UNCLOSED_TAG_SCAN = / \[ /x
+
+		CLASSIC_TAG_SCAN = / [a-z]* /ix
+
+		SEPARATOR_TAG_SCAN = / \** /x
+
+		FORMAT_TAG_SCAN = / -- -* /x
+
+		QUOTED_SCAN = /
+			(            # $1 = quoted text
+				[^"\\]*    # normal*
+				(?:        # (
+					\\.      # 	special
+					[^"\\]*  # 	normal*
+				)*         # )*
+			)
+			"?           # end quote "
+		/mx
+
+		ENTITY_SCAN = /
+			( [^;\]]+ )  # $1 = entity code
+			;?           # optional ending semicolon
+		/ix
+
+		SMILEY_SCAN = Smileys::SMILEY_PATTERN
+
+		# this is the main parser loop that separates
+		#   text - everything until "["
+		# from
+		#   tags - starting with "[", ending with "]"
+		def parse_token
+			if @scanner.scan(SIMPLE_TEXT_SCAN)
+				add_text
+			else
+				handle_tag
+			end
+		end
+
+		def handle_tag
+			tag_start = @scanner.pos
+
+			unless @scanner.scan TAG_BEGIN_SCAN
+				garbage_out tag_start
+				return
+			end
+
+			closing, id = @scanner[1], @scanner[2]
+			#debug 'handle_tag(%p)' % @scanner.matched
+
+			handled =
+				case id
+
+					when /[a-z]/i
+						if @scanner.scan(CLASSIC_TAG_SCAN)
+							if handle_classic_tag(id + @scanner.matched, closing)
+								already_closed = true
+							end
+						end
+
+					when '*'
+						if @scanner.scan(SEPARATOR_TAG_SCAN)
+							handle_asterisk tag_start, id + @scanner.matched
+							true
+						end
+
+					when '-'
+						if @scanner.scan(FORMAT_TAG_SCAN)
+							#format = id + @scanner.matched
+							@encoder.add_html "\n<hr>\n"
+							true
+						end
+
+					when '"'
+						if @scanner.scan(QUOTED_SCAN)
+							@encoder.add_text unescape(@scanner[1])
+							true
+						end
+
+					when '&'
+						if @scanner.scan(ENTITY_SCAN)
+							@encoder.add_entity @scanner[1]
+							true
+						end
+
+					when Smileys::SMILEY_START_CHARSET
+						@scanner.pos = @scanner.pos - 1  # (ungetch)
+						if @scanner.scan(SMILEY_SCAN)
+							@encoder.add_html Smileys.smiley_to_image(@scanner.matched)
+							true
+						end
+
+				end # case
+
+			return garbage_out(tag_start) unless handled
+
+			@scanner.scan(TAG_END_SCAN) unless already_closed
+		end
+
+		ATTRIBUTES_SCAN = /
+			(
+				[^\]"\\]*
+				(?:
+					(?:
+						\\.
+					|
+						"
+						[^"\\]*
+						(?:
+							\\.
+							[^"\\]*
+						)*
+						"?
+					)
+					[^\]"\\]*
+				)*
+			)
+			\]?
+		/x
+
+		def handle_classic_tag name, closing
+			debug 'TAG: ' + (closing ? '/' : '') + name
+			# flatten
+			name.downcase!
+			tag_class = TAG_LIST[name]
+			return unless tag_class
+
+			#debug((opening ? 'OPEN ' : 'CLOSE ') + tag_class.name)
+
+			# create an attribute object to handle it
+			@scanner.scan(ATTRIBUTES_SCAN)
+			#debug name + ':' + @scanner[1]
+			attr = Attribute.create @scanner[1]
+			#debug 'ATTRIBUTES %p ' % attr #unless attr.empty?
+
+			#debug 'closing: %p; name=%s, attr=%p' % [closing, name, attr]
+
+			# OPEN
+			if not closing and tag = @tagstack.try_open_class(tag_class, attr)
+				#debug 'opening'
+				tag.do_open @scanner
+				# this should be done by the tag itself.
+				if attr.empty_tag?
+					tag.handle_empty
+					@tagstack.close_tag
+				elsif tag.special_content?
+					handle_special_content(tag)
+					@tagstack.close_tag
+					#        # ignore asterisks directly after the opening; these are phpBBCode
+					#        elsif tag.respond_to? :asterisk
+					#          debug 'SKIP ASTERISKS: ' if @scanner.skip(ASTERISK_TAGS_SCAN)
+				end
+
+			# CLOSE
+			elsif @tagstack.try_close_class(tag_class)
+				#debug 'closing'
+				# GARBAGE
+			else
+				return
+			end
+
+			true
+		end
+
+		def handle_asterisk tag_start, stars
+			#debug 'ASTERISK: ' + stars.to_s
+			# rule for asterisk tags: they belong to the last tag
+			# that handles them. tags opened after this tag are closed.
+			# if no open tag uses them, all are closed.
+			tag = @tagstack.close_all_until { |tag| tag.respond_to? :asterisk }
+			unless tag and tag.asterisk stars, @scanner
+				garbage_out tag_start
+			end
+		end
+
+		def handle_special_content tag
+			scanned = @scanner.scan_until(tag.closing_tag)
+			if scanned
+				scanned.slice!(-(@scanner.matched.size)..-1)
+			else
+				scanned = @scanner.scan(/.*/m).to_s
+			end
+			#debug 'SPECIAL CONTENT: ' + scanned
+			tag.handle_content(scanned)
+		end
+
+		def unescape text
+			# input: correctly formatted quoted string (without the quotes)
+			text.gsub(/\\(?:(["\\])|.)/) { $1 or $& }
+		end
+
+
+		# MAGIC FEAUTURES
+
+		URL_PATTERN = /(?:(?:www|ftp)\.|(?>\w{3,}):\/\/)\S+/
+		EMAIL_PATTERN = /(?>[\w\-_.]+)@[\w\-\.]+\.\w+/
+
+		HAS_MAGIC = /[&@#{Smileys::SMILEY_START_CHARS}]|(?i:www|ftp)/
+
+		MAGIC_PATTERN = Regexp.new('(\W|^)(%s)' %
+			[Smileys::MAGIC_SMILEY_PATTERN, URL_PATTERN, EMAIL_PATTERN].map { |pattern|
+				pattern.to_s
+			}.join('|') )
+
+		IS_SMILEY_PATTERN = Regexp.new('^%s' % Smileys::SMILEY_START_CHARSET.to_s )
+		IS_URL_PATTERN = /^(?:(?i:www|ftp)\.|(?>\w+):\/\/)/
+		URL_STARTS_WITH_PROTOCOL = /^\w+:\/\//
+		IS_EMAIL_PATTERN = /^[\w\-_.]+@/
+
+		def to_magic text
+			#      debug MAGIC_PATTERN.to_s
+			text.gsub!(MAGIC_PATTERN) {
+				magic = $2
+				$1 + case magic
+					when IS_SMILEY_PATTERN
+						Smileys.smiley_to_img magic
+					when IS_URL_PATTERN
+						last = magic.slice_punctation!  # no punctation in my URL
+						href = magic
+						href.insert(0, 'http://') unless magic =~ URL_STARTS_WITH_PROTOCOL
+						'<a href="' + href + '">' + magic + '</a>' + last
+					when IS_EMAIL_PATTERN
+						last = magic.slice_punctation!
+						'<a href="mailto:' + magic + '">' + magic + '</a>' + last
+				else
+					raise '{{{' + magic + '}}}'
+				end
+			}
+			text
+		end
+
+		# handles smileys and urls
+		def parse_magic html
+			return html unless @do_magic
+			scanner = StringScanner.new html
+			out = ''
+			while scanner.rest?
+				if scanner.scan(/ < (?: a\s .*? <\/a> | pre\W .*? <\/pre> | [^>]* > ) /mx)
+					out << scanner.matched
+				elsif scanner.scan(/ [^<]+ /x)
+					out << to_magic(scanner.matched)
+
+				# this should never happen
+				elsif scanner.scan(/./m)
+					raise 'ERROR: else case reached'
+				end
+			end
+			out
+		end
+	end  # Parser
+end
+
+class String
+	def slice_punctation!
+		slice!(/[.:,!\?]+$/).to_s  # return '' instead of nil
+	end
+end
+
+#
+# = Grammar
+#
+# An implementation of common algorithms on grammars.
+#
+# This is used by Shinobu, a visualization tool for educating compiler-building.
+#
+# Thanks to Andreas Kunert for his wonderful LR(k) Pamphlet (German, see http://www.informatik.hu-berlin.de/~kunert/papers/lr-analyse), and Aho/Sethi/Ullman for their Dragon Book.
+#
+# Homepage::  http://shinobu.cYcnus.de (not existing yet)
+# Author::    murphy (Kornelius Kalnbach)
+# Copyright:: (cc) 2005 cYcnus
+# License::   GPL
+# Version:: 0.2.0 (2005-03-27)
+
+require 'set_hash'
+require 'ctype'
+require 'tools'
+require 'rules'
+require 'trace'
+
+require 'first'
+require 'follow'
+
+# = Grammar
+#
+# == Syntax
+#
+# === Rules
+#
+# Each line is a rule.
+# The syntax is
+#
+# 	left - right
+#
+# where +left+ and +right+ can be uppercase and lowercase letters,
+# and <code>-</code> can be any combination of <, >, - or whitespace.
+#
+# === Symbols
+#
+# Uppercase letters stand for meta symbols, lowercase for terminals.
+#
+# You can make epsilon-derivations by leaving <code><right></code> empty.
+#
+# === Example
+# 	S - Ac
+# 	A - Sc
+# 	A - b
+# 	A -
+class Grammar
+
+	attr_reader :tracer
+	# Creates a new Grammar.
+	# If $trace is true, the algorithms explain (textual) what they do to $stdout.
+	def initialize data, tracer = Tracer.new
+		@tracer = tracer
+		@rules = Rules.new
+		@terminals, @meta_symbols = SortedSet.new, Array.new
+		@start_symbol = nil
+		add_rules data
+	end
+
+	attr_reader :meta_symbols, :terminals, :rules, :start_symbol
+
+	alias_method :sigma, :terminals
+	alias_method :alphabet, :terminals
+	alias_method :variables, :meta_symbols
+	alias_method :nonterminals, :meta_symbols
+
+	# A string representation of the grammar for debugging.
+	def inspect productions_too = false
+		'Grammar(meta symbols: %s; alphabet: %s; productions: [%s]; start symbol: %s)' %
+			[
+				meta_symbols.join(', '),
+				terminals.join(', '),
+				if productions_too
+					@rules.inspect
+				else
+					@rules.size
+				end,
+				start_symbol
+			]
+	end
+
+	# Add rules to the grammar. +rules+ should be a String or respond to +scan+ in a similar way.
+	#
+	# Syntax: see Grammar.
+	def add_rules grammar
+		@rules = Rules.parse grammar do |rule|
+			@start_symbol ||= rule.left
+			@meta_symbols << rule.left
+			@terminals.merge rule.right.split('').select { |s| terminal? s }
+		end
+		@meta_symbols.uniq!
+		update
+	end
+
+	# Returns a hash acting as FIRST operator, so that
+	# <code>first["ABC"]</code> is FIRST(ABC).
+	# See http://en.wikipedia.org/wiki/LL_parser "Constructing an LL(1) parsing table" for details.
+	def first
+		first_operator
+	end
+
+	# Returns a hash acting as FOLLOW operator, so that
+	# <code>first["A"]</code> is FOLLOW(A).
+	# See http://en.wikipedia.org/wiki/LL_parser "Constructing an LL(1) parsing table" for details.
+	def follow
+		follow_operator
+	end
+
+	LLError = Class.new(Exception)
+	LLErrorType1 = Class.new(LLError)
+	LLErrorType2 = Class.new(LLError)
+
+	# Tests if the grammar is LL(1).
+	def ll1?
+		begin
+			for meta in @meta_symbols
+				first_sets = @rules[meta].map { |alpha| first[alpha] }
+				first_sets.inject(Set[]) do |already_used, another_first_set|
+					unless already_used.disjoint? another_first_set
+						raise LLErrorType1
+					end
+					already_used.merge another_first_set
+				end
+
+				if first[meta].include? EPSILON and not first[meta].disjoint? follow[meta]
+					raise LLErrorType2
+				end
+			end
+		rescue LLError
+			false
+		else
+			true
+		end
+	end
+
+private
+
+	def first_operator
+		@first ||= FirstOperator.new self
+	end
+
+	def follow_operator
+		@follow ||= FollowOperator.new self
+	end
+
+	def update
+		@first = @follow = nil
+	end
+
+end
+
+if $0 == __FILE__
+  eval DATA.read, nil, $0, __LINE__+4
+end
+
+require 'test/unit'
+
+class TestCaseGrammar < Test::Unit::TestCase
+
+	include Grammar::Symbols
+
+	def fifo s
+		Set[*s.split('')]
+	end
+
+	def test_fifo
+		assert_equal Set[], fifo('')
+		assert_equal Set[EPSILON, END_OF_INPUT, 'x', 'Y'], fifo('?xY$')
+	end
+
+	TEST_GRAMMAR_1 = <<-EOG
+S - ABCD
+A - a
+A -
+B - b
+B -
+C - c
+C -
+D - S
+D -
+	EOG
+
+	def test_symbols
+		assert EPSILON
+		assert END_OF_INPUT
+	end
+
+	def test_first_1
+		g = Grammar.new TEST_GRAMMAR_1
+
+		f = nil
+		assert_nothing_raised { f = g.first }
+		assert_equal(Set['a', EPSILON], f['A'])
+		assert_equal(Set['b', EPSILON], f['B'])
+		assert_equal(Set['c', EPSILON], f['C'])
+		assert_equal(Set['a', 'b', 'c', EPSILON], f['D'])
+		assert_equal(f['D'], f['S'])
+	end
+
+	def test_follow_1
+		g = Grammar.new TEST_GRAMMAR_1
+
+		f = nil
+		assert_nothing_raised { f = g.follow }
+		assert_equal(Set['a', 'b', 'c', END_OF_INPUT], f['A'])
+		assert_equal(Set['a', 'b', 'c', END_OF_INPUT], f['B'])
+		assert_equal(Set['a', 'b', 'c', END_OF_INPUT], f['C'])
+		assert_equal(Set[END_OF_INPUT], f['D'])
+		assert_equal(Set[END_OF_INPUT], f['S'])
+	end
+
+
+	TEST_GRAMMAR_2 = <<-EOG
+S - Ed
+E - EpT
+E - EmT
+E - T
+T - TuF
+T - TdF
+T - F
+F - i
+F - n
+F - aEz
+	EOG
+
+	def test_first_2
+		g = Grammar.new TEST_GRAMMAR_2
+
+		f = nil
+		assert_nothing_raised { f = g.first }
+		assert_equal(Set['a', 'n', 'i'], f['E'])
+		assert_equal(Set['a', 'n', 'i'], f['F'])
+		assert_equal(Set['a', 'n', 'i'], f['T'])
+		assert_equal(Set['a', 'n', 'i'], f['S'])
+	end
+
+	def test_follow_2
+		g = Grammar.new TEST_GRAMMAR_2
+
+		f = nil
+		assert_nothing_raised { f = g.follow }
+		assert_equal(Set['m', 'd', 'z', 'p'], f['E'])
+		assert_equal(Set['m', 'd', 'z', 'p', 'u'], f['F'])
+		assert_equal(Set['m', 'd', 'z', 'p', 'u'], f['T'])
+		assert_equal(Set[END_OF_INPUT], f['S'])
+	end
+
+	LLError = Grammar::LLError
+
+	TEST_GRAMMAR_3 = <<-EOG
+E - TD
+D - pTD
+D -
+T - FS
+S - uFS
+S -
+S - p
+F - aEz
+F - i
+	EOG
+
+	NoError = Class.new(Exception)
+
+	def test_first_3
+		g = Grammar.new TEST_GRAMMAR_3
+
+		# Grammar 3 is LL(1), so all first-sets must be disjoint.
+		f = nil
+		assert_nothing_raised { f = g.first }
+		assert_equal(Set['a', 'i'], f['E'])
+		assert_equal(Set[EPSILON, 'p'], f['D'])
+		assert_equal(Set['a', 'i'], f['F'])
+		assert_equal(Set['a', 'i'], f['T'])
+		assert_equal(Set[EPSILON, 'u', 'p'], f['S'])
+		for m in g.meta_symbols
+			r = g.rules[m]
+			firsts = r.map { |x| f[x] }.to_set
+			assert_nothing_raised do
+				firsts.inject(Set.new) do |already_used, another_first_set|
+					raise LLError, 'not disjoint!' unless already_used.disjoint? another_first_set
+					already_used.merge another_first_set
+				end
+			end
+		end
+	end
+
+	def test_follow_3
+		g = Grammar.new TEST_GRAMMAR_3
+
+		# Grammar 3 is not LL(1), because epsilon is in FIRST(S),
+		# but FIRST(S) and FOLLOW(S) are not disjoint.
+		f = nil
+		assert_nothing_raised { f = g.follow }
+		assert_equal(Set['z', END_OF_INPUT], f['E'])
+		assert_equal(Set['z', END_OF_INPUT], f['D'])
+		assert_equal(Set['z', 'p', 'u', END_OF_INPUT], f['F'])
+		assert_equal(Set['p', 'z', END_OF_INPUT], f['T'])
+		assert_equal(Set['p', 'z', END_OF_INPUT], f['S'])
+		for m in g.meta_symbols
+			first_m = g.first[m]
+			next unless first_m.include? EPSILON
+			assert_raise(m == 'S' ? LLError : NoError) do
+				if first_m.disjoint? f[m]
+					raise NoError  # this is fun :D
+				else
+					raise LLError
+				end
+			end
+		end
+	end
+
+	TEST_GRAMMAR_3b = <<-EOG
+E - TD
+D - pTD
+D - PTD
+D -
+T - FS
+S - uFS
+S -
+F - aEz
+F - i
+P - p
+	EOG
+
+	def test_first_3b
+		g = Grammar.new TEST_GRAMMAR_3b
+
+		# Grammar 3b is NOT LL(1), since not all first-sets are disjoint.
+		f = nil
+		assert_nothing_raised { f = g.first }
+		assert_equal(Set['a', 'i'], f['E'])
+		assert_equal(Set[EPSILON, 'p'], f['D'])
+		assert_equal(Set['p'], f['P'])
+		assert_equal(Set['a', 'i'], f['F'])
+		assert_equal(Set['a', 'i'], f['T'])
+		assert_equal(Set[EPSILON, 'u'], f['S'])
+		for m in g.meta_symbols
+			r = g.rules[m]
+			firsts = r.map { |x| f[x] }
+			assert_raise(m == 'D' ? LLError : NoError) do
+				firsts.inject(Set.new) do |already_used, another_first_set|
+					raise LLError, 'not disjoint!' unless already_used.disjoint? another_first_set
+					already_used.merge another_first_set
+				end
+				raise NoError
+			end
+		end
+	end
+
+	def test_follow_3b
+		g = Grammar.new TEST_GRAMMAR_3b
+
+		# Although Grammar 3b is NOT LL(1), the FOLLOW-condition is satisfied.
+		f = nil
+		assert_nothing_raised { f = g.follow }
+		assert_equal(fifo('z$'), f['E'], 'E')
+		assert_equal(fifo('z$'), f['D'], 'D')
+		assert_equal(fifo('ai'), f['P'], 'P')
+		assert_equal(fifo('z$pu'), f['F'], 'F')
+		assert_equal(fifo('z$p'), f['T'], 'T')
+		assert_equal(fifo('z$p'), f['S'], 'S')
+		for m in g.meta_symbols
+			first_m = g.first[m]
+			next unless first_m.include? EPSILON
+			assert_raise(NoError) do
+				if first_m.disjoint? f[m]
+					raise NoError  # this is fun :D
+				else
+					raise LLError
+				end
+			end
+		end
+	end
+
+	def test_ll1?
+		assert_equal false, Grammar.new(TEST_GRAMMAR_3).ll1?, 'Grammar 3'
+		assert_equal false, Grammar.new(TEST_GRAMMAR_3b).ll1?, 'Grammar 3b'
+	end
+
+	def test_new
+		assert_nothing_raised { Grammar.new '' }
+		assert_nothing_raised { Grammar.new TEST_GRAMMAR_1 }
+		assert_nothing_raised { Grammar.new TEST_GRAMMAR_2 }
+		assert_nothing_raised { Grammar.new TEST_GRAMMAR_3 }
+		assert_nothing_raised { Grammar.new TEST_GRAMMAR_1 + TEST_GRAMMAR_2 + TEST_GRAMMAR_3 }
+		assert_raise(ArgumentError) { Grammar.new 'S - ?' }
+	end
+end
+
+# vim:foldmethod=syntax
+
+#!/usr/bin/env ruby
+
+require 'fox12'
+
+include Fox
+
+class Window < FXMainWindow
+	def initialize(app)
+		super(app, app.appName + ": First Set Calculation", nil, nil, DECOR_ALL, 0, 0, 800, 600, 0, 0)
+
+		# {{{ menubar
+		menubar = FXMenuBar.new(self, LAYOUT_SIDE_TOP|LAYOUT_FILL_X)
+
+		filemenu = FXMenuPane.new(self)
+
+		FXMenuCommand.new(filemenu, "&Start\tCtl-S\tStart the application.", nil, getApp()).connect(SEL_COMMAND, method(:start))
+		FXMenuCommand.new(filemenu, "&Quit\tAlt-F4\tQuit the application.", nil, getApp(), FXApp::ID_QUIT)
+		FXMenuTitle.new(menubar, "&File", nil, filemenu)
+		# }}} menubar
+
+		# {{{ statusbar
+		@statusbar = FXStatusBar.new(self, LAYOUT_SIDE_BOTTOM|LAYOUT_FILL_X|STATUSBAR_WITH_DRAGCORNER)
+		# }}} statusbar
+
+		# {{{ window content
+		horizontalsplitt = FXSplitter.new(self, SPLITTER_VERTICAL|LAYOUT_SIDE_TOP|LAYOUT_FILL)
+
+
+		@productions = FXList.new(horizontalsplitt, nil, 0, LAYOUT_SIDE_TOP|LAYOUT_FILL_X|LAYOUT_FIX_HEIGHT|LIST_SINGLESELECT)
+		@productions.height = 100
+
+		@result = FXTable.new(horizontalsplitt, nil, 0, LAYOUT_FILL)
+		@result.height = 200
+		@result.setTableSize(2, 2, false)
+		@result.rowHeaderWidth = 0
+
+		header = @result.columnHeader
+		header.setItemText 0, 'X'
+		header.setItemText 1, 'FIRST(X)'
+		for item in header
+			item.justification = FXHeaderItem::CENTER_X
+		end
+
+		@debug = FXText.new(horizontalsplitt, nil, 0, LAYOUT_SIDE_BOTTOM|LAYOUT_FILL_X|LAYOUT_FIX_HEIGHT)
+		@debug.height = 200
+
+		# }}} window content
+	end
+
+	def load_grammar grammar
+		@tracer = FirstTracer.new(self)
+		@grammar = Grammar.new grammar, @tracer
+		@rules_indexes = Hash.new
+		@grammar.rules.each_with_index do |rule, i|
+			@productions.appendItem rule.inspect
+			@rules_indexes[rule] = i
+		end
+	end
+
+	def create
+		super
+		show(PLACEMENT_SCREEN)
+	end
+
+	def rule rule
+		@productions.selectItem @rules_indexes[rule]
+		sleep 0.1
+	end
+
+	def iterate i
+		setTitle i.to_s
+		sleep 0.1
+	end
+
+	def missing what
+		@debug.appendText what + "\n"
+		sleep 0.1
+	end
+
+	def start sender, sel, pointer
+		Thread.new do
+			begin
+				@grammar.first
+			rescue => boom
+				@debug.appendText [boom.to_s, *boom.backtrace].join("\n")
+			end
+		end
+	end
+
+end
+
+$: << 'grammar'
+require 'grammar'
+
+require 'first_tracer'
+
+app = FXApp.new("Shinobu", "cYcnus")
+
+# fenster erzeugen
+window = Window.new app
+
+unless ARGV.empty?
+	grammar = File.read(ARGV.first)
+else
+	grammar = <<-EOG1
+Z --> S
+S --> Sb
+S --> bAa
+A --> aSc
+A --> a
+A --> aSb
+	EOG1
+end
+
+window.load_grammar grammar
+
+app.create
+app.run
+
+require 'erb'
+require 'ftools'
+require 'yaml'
+require 'redcloth'
+
+module WhyTheLuckyStiff
+	class Book
+		attr_accessor :author, :title, :terms, :image, :teaser,
+			:chapters, :expansion_paks, :encoding, :credits
+		def [] x
+			@lang.fetch(x) do
+				warn warning = "[not translated: '#{x}'!]"
+				warning
+			end
+		end
+	end
+
+	def Book::load( file_name )
+		YAML::load( File.open( file_name ) )
+	end
+
+	class Section
+		attr_accessor :index, :header, :content
+		def initialize( i, h, c )
+			@index, @header, @content = i, h, RedCloth::new( c.to_s )
+		end
+	end
+
+	class Sidebar
+		attr_accessor :title, :content
+	end
+
+	YAML::add_domain_type( 'whytheluckystiff.net,2003', 'sidebar' ) do |taguri, val|
+		YAML::object_maker( Sidebar, 'title' => val.keys.first, 'content' => RedCloth::new( val.values.first ) )
+	end
+	class Chapter
+		attr_accessor :index, :title, :sections
+		def initialize( i, t, sects )
+			@index = i
+			@title = t
+			i = 0
+			@sections = sects.collect do |s|
+				if s.respond_to?( :keys )
+					i += 1
+					Section.new( i, s.keys.first, s.values.first )
+				else
+					s
+				end
+			end
+		end
+	end
+
+	YAML::add_domain_type( 'whytheluckystiff.net,2003', 'book' ) do |taguri, val|
+		['chapters', 'expansion_paks'].each do |chaptype|
+			i = 0
+			val[chaptype].collect! do |c|
+				i += 1
+				Chapter::new( i, c.keys.first, c.values.first )
+			end
+		end
+		val['teaser'].collect! do |t|
+			Section::new( 1, t.keys.first, t.values.first )
+		end
+		val['terms'] = RedCloth::new( val['terms'] )
+		YAML::object_maker( Book, val )
+	end
+
+	class Image
+		attr_accessor :file_name
+	end
+
+	YAML::add_domain_type( 'whytheluckystiff.net,2003', 'img' ) do |taguri, val|
+		YAML::object_maker( Image, 'file_name' => "i/" + val )
+	end
+end
+
+#
+# Convert the book to HTML
+#
+if __FILE__ == $0
+	unless ARGV[0]
+		puts "Usage: #{$0} [/path/to/save/html]"
+		exit
+	end
+
+	site_path = ARGV[0]
+	book = WhyTheLuckyStiff::Book::load( 'poignant.yml' )
+	chapter = nil
+
+	# Write index page
+	index_tpl = ERB::new( File.open( 'index.erb' ).read )
+	File.open( File.join( site_path, 'index.html' ), 'w' ) do |out|
+		out << index_tpl.result
+	end
+
+	book.chapters = book.chapters[0,3] if ARGV.include? '-fast'
+
+	# Write chapter pages
+	chapter_tpl = ERB::new( File.open( 'chapter.erb' ).read )
+	book.chapters.each do |chapter|
+		File.open( File.join( site_path, "chapter-#{ chapter.index }.html" ), 'w' ) do |out|
+			out << chapter_tpl.result
+		end
+	end
+	exit if ARGV.include? '-fast'
+
+	# Write expansion pak pages
+	expak_tpl = ERB::new( File.open( 'expansion-pak.erb' ).read )
+	book.expansion_paks.each do |pak|
+		File.open( File.join( site_path, "expansion-pak-#{ pak.index }.html" ), 'w' ) do |out|
+			out << expak_tpl.result( binding )
+		end
+	end
+
+	# Write printable version
+	print_tpl = ERB::new( File.open( 'print.erb' ).read )
+	File.open( File.join( site_path, "print.html" ), 'w' ) do |out|
+		out << print_tpl.result
+	end
+
+	# Copy css + images into site
+	copy_list = ["guide.css"] +
+		Dir["i/*"].find_all { |image| image =~ /\.(gif|jpg|png)$/ }
+
+	File.makedirs( File.join( site_path, "i" ) )
+	copy_list.each do |copy_file|
+		File.copy( copy_file, File.join( site_path, copy_file ) )
+	end
+end
+
+#!/usr/bin/env ruby
+
+require 'fox'
+begin
+  require 'opengl'
+rescue LoadError
+  require 'fox/missingdep'
+  MSG = <<EOM
+  Sorry, this example depends on the OpenGL extension. Please
+  check the Ruby Application Archives for an appropriate
+  download site.
+EOM
+  missingDependency(MSG)
+end
+
+
+include Fox
+include Math
+
+Deg2Rad = Math::PI / 180
+
+D_MAX = 6
+SQUARE_SIZE = 2.0 / D_MAX
+SQUARE_DISTANCE = 4.0 / D_MAX
+AMPLITUDE = SQUARE_SIZE
+LAMBDA = D_MAX.to_f / 2
+
+class GLTestWindow < FXMainWindow
+
+  # How often our timer will fire (in milliseconds)
+  TIMER_INTERVAL = 500
+
+  # Rotate the boxes when a timer message is received
+  def onTimeout(sender, sel, ptr)
+    @angle += 10.0
+#    @size = 0.5 + 0.2 * Math.cos(Deg2Rad * @angle)
+    drawScene()
+    @timer = getApp().addTimeout(TIMER_INTERVAL, method(:onTimeout))
+  end
+
+  # Rotate the boxes when a chore message is received
+  def onChore(sender, sel, ptr)
+    @angle += 10.0
+#    @angle %= 360.0
+#    @size = 0.5 + 0.2 * Math.cos(Deg2Rad * @angle)
+    drawScene()
+    @chore = getApp().addChore(method(:onChore))
+  end
+
+  # Draw the GL scene
+  def drawScene
+    lightPosition = [15.0, 10.0, 5.0, 1.0]
+    lightAmbient  = [ 0.1,  0.1, 0.1, 1.0]
+    lightDiffuse  = [ 0.9,  0.9, 0.9, 1.0]
+    redMaterial   = [ 0.0,  0.0, 1.0, 1.0]
+    blueMaterial  = [ 0.0,  1.0, 0.0, 1.0]
+
+    width = @glcanvas.width.to_f
+    height = @glcanvas.height.to_f
+    aspect = width/height
+
+    # Make context current
+    @glcanvas.makeCurrent()
+
+    GL.Viewport(0, 0, @glcanvas.width, @glcanvas.height)
+
+    GL.ClearColor(1.0/256, 0.0, 5.0/256, 1.0)
+    GL.Clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT)
+    GL.Enable(GL::DEPTH_TEST)
+
+    GL.Disable(GL::DITHER)
+
+    GL.MatrixMode(GL::PROJECTION)
+    GL.LoadIdentity()
+    GLU.Perspective(30.0, aspect, 1.0, 100.0)
+
+    GL.MatrixMode(GL::MODELVIEW)
+    GL.LoadIdentity()
+    GLU.LookAt(5.0, 10.0, 15.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0)
+
+    GL.ShadeModel(GL::SMOOTH)
+    GL.Light(GL::LIGHT0, GL::POSITION, lightPosition)
+    GL.Light(GL::LIGHT0, GL::AMBIENT, lightAmbient)
+    GL.Light(GL::LIGHT0, GL::DIFFUSE, lightDiffuse)
+    GL.Enable(GL::LIGHT0)
+    GL.Enable(GL::LIGHTING)
+
+    GL.Rotated(0.1*@angle, 0.0, 1.0, 0.0)
+    for x in -D_MAX..D_MAX
+      for y in -D_MAX..D_MAX
+        h1 = (x + y - 2).abs
+        h2 = (y - x + 1).abs
+        GL.PushMatrix
+        c = [1, 0, 0, 1]
+        GL.Material(GL::FRONT, GL::AMBIENT, c)
+        GL.Material(GL::FRONT, GL::DIFFUSE, c)
+
+        GL.Translated(
+          y * SQUARE_DISTANCE,
+          AMPLITUDE * h1,
+          x * SQUARE_DISTANCE
+        )
+
+        GL.Begin(GL::TRIANGLE_STRIP)
+          GL.Normal(1.0, 0.0, 0.0)
+          GL.Vertex(-SQUARE_SIZE, +SQUARE_SIZE, -SQUARE_SIZE)
+          GL.Vertex(-SQUARE_SIZE, +SQUARE_SIZE, +SQUARE_SIZE)
+          GL.Vertex(+SQUARE_SIZE, +SQUARE_SIZE, -SQUARE_SIZE)
+          GL.Vertex(+SQUARE_SIZE, +SQUARE_SIZE, +SQUARE_SIZE)
+        GL.End
+
+        GL.PopMatrix
+
+        GL.PushMatrix
+        c = [0, 0, 1, 1]
+        GL.Material(GL::FRONT, GL::AMBIENT, c)
+        GL.Material(GL::FRONT, GL::DIFFUSE, c)
+
+        GL.Translated(
+          y * SQUARE_DISTANCE,
+          AMPLITUDE * h2,
+          x * SQUARE_DISTANCE
+        )
+
+        GL.Begin(GL::TRIANGLE_STRIP)
+          GL.Normal(1.0, 0.0, 0.0)
+          GL.Vertex(-SQUARE_SIZE, +SQUARE_SIZE, -SQUARE_SIZE)
+          GL.Vertex(-SQUARE_SIZE, +SQUARE_SIZE, +SQUARE_SIZE)
+          GL.Vertex(+SQUARE_SIZE, +SQUARE_SIZE, -SQUARE_SIZE)
+          GL.Vertex(+SQUARE_SIZE, +SQUARE_SIZE, +SQUARE_SIZE)
+        GL.End
+
+        GL.PopMatrix
+
+        GL.PushMatrix
+        c = [0.0 + (x/10.0), 0.0 + (y/10.0), 0, 1]
+        GL.Material(GL::FRONT, GL::AMBIENT, c)
+        GL.Material(GL::FRONT, GL::DIFFUSE, c)
+
+        GL.Translated(
+          y * SQUARE_DISTANCE,
+          0,
+          x * SQUARE_DISTANCE
+        )
+
+        GL.Begin(GL::TRIANGLE_STRIP)
+          GL.Normal(1.0, 0.0, 0.0)
+          GL.Vertex(-SQUARE_SIZE, +SQUARE_SIZE, -SQUARE_SIZE)
+          GL.Vertex(-SQUARE_SIZE, +SQUARE_SIZE, +SQUARE_SIZE)
+          GL.Vertex(+SQUARE_SIZE, +SQUARE_SIZE, -SQUARE_SIZE)
+          GL.Vertex(+SQUARE_SIZE, +SQUARE_SIZE, +SQUARE_SIZE)
+        GL.End
+
+        GL.PopMatrix
+      end
+    end
+
+    # Swap if it is double-buffered
+    if @glvisual.isDoubleBuffer
+      @glcanvas.swapBuffers
+    end
+
+    # Make context non-current
+    @glcanvas.makeNonCurrent
+  end
+
+  def initialize(app)
+    # Invoke the base class initializer
+    super(app, "OpenGL Test Application", nil, nil, DECOR_ALL, 0, 0, 1024, 768)
+
+    # Construct the main window elements
+    frame = FXHorizontalFrame.new(self, LAYOUT_SIDE_TOP|LAYOUT_FILL_X|LAYOUT_FILL_Y)
+    frame.padLeft, frame.padRight = 0, 0
+    frame.padTop, frame.padBottom = 0, 0
+
+    # Left pane to contain the glcanvas
+    glcanvasFrame = FXVerticalFrame.new(frame,
+      LAYOUT_FILL_X|LAYOUT_FILL_Y|LAYOUT_TOP|LAYOUT_LEFT)
+    glcanvasFrame.padLeft, glcanvasFrame.padRight = 10, 10
+    glcanvasFrame.padTop, glcanvasFrame.padBottom = 10, 10
+
+    # Label above the glcanvas
+    FXLabel.new(glcanvasFrame, "OpenGL Canvas Frame", nil,
+      JUSTIFY_CENTER_X|LAYOUT_FILL_X)
+
+    # Horizontal divider line
+    FXHorizontalSeparator.new(glcanvasFrame, SEPARATOR_GROOVE|LAYOUT_FILL_X)
+
+    # Drawing glcanvas
+    glpanel = FXVerticalFrame.new(glcanvasFrame, (FRAME_SUNKEN|FRAME_THICK|
+      LAYOUT_FILL_X|LAYOUT_FILL_Y|LAYOUT_TOP|LAYOUT_LEFT))
+    glpanel.padLeft, glpanel.padRight = 0, 0
+    glpanel.padTop, glpanel.padBottom = 0, 0
+
+    # A visual to draw OpenGL
+    @glvisual = FXGLVisual.new(getApp(), VISUAL_DOUBLEBUFFER)
+
+    # Drawing glcanvas
+    @glcanvas = FXGLCanvas.new(glpanel, @glvisual, nil, 0,
+      LAYOUT_FILL_X|LAYOUT_FILL_Y|LAYOUT_TOP|LAYOUT_LEFT)
+    @glcanvas.connect(SEL_PAINT) {
+      drawScene
+    }
+    @glcanvas.connect(SEL_CONFIGURE) {
+      if @glcanvas.makeCurrent
+        GL.Viewport(0, 0, @glcanvas.width, @glcanvas.height)
+        @glcanvas.makeNonCurrent
+      end
+    }
+
+    # Right pane for the buttons
+    buttonFrame = FXVerticalFrame.new(frame, LAYOUT_FILL_Y|LAYOUT_TOP|LAYOUT_LEFT)
+    buttonFrame.padLeft, buttonFrame.padRight = 10, 10
+    buttonFrame.padTop, buttonFrame.padBottom = 10, 10
+
+    # Label above the buttons
+    FXLabel.new(buttonFrame, "Button Frame", nil,
+      JUSTIFY_CENTER_X|LAYOUT_FILL_X)
+
+    # Horizontal divider line
+    FXHorizontalSeparator.new(buttonFrame, SEPARATOR_RIDGE|LAYOUT_FILL_X)
+
+    # Spin according to timer
+    spinTimerBtn = FXButton.new(buttonFrame,
+      "Spin &Timer\tSpin using interval timers\nNote the app
+      blocks until the interal has elapsed...", nil,
+      nil, 0, FRAME_THICK|FRAME_RAISED|LAYOUT_FILL_X|LAYOUT_TOP|LAYOUT_LEFT)
+    spinTimerBtn.padLeft, spinTimerBtn.padRight = 10, 10
+    spinTimerBtn.padTop, spinTimerBtn.padBottom = 5, 5
+    spinTimerBtn.connect(SEL_COMMAND) {
+      @spinning = true
+      @timer = getApp().addTimeout(TIMER_INTERVAL, method(:onTimeout))
+    }
+    spinTimerBtn.connect(SEL_UPDATE) { |sender, sel, ptr|
+      @spinning ? sender.disable : sender.enable
+    }
+
+    # Spin according to chore
+    spinChoreBtn = FXButton.new(buttonFrame,
+      "Spin &Chore\tSpin as fast as possible using chores\nNote even though the
+      app is very responsive, it never blocks;\nthere is always something to
+      do...", nil,
+      nil, 0, FRAME_THICK|FRAME_RAISED|LAYOUT_FILL_X|LAYOUT_TOP|LAYOUT_LEFT)
+    spinChoreBtn.padLeft, spinChoreBtn.padRight = 10, 10
+    spinChoreBtn.padTop, spinChoreBtn.padBottom = 5, 5
+    spinChoreBtn.connect(SEL_COMMAND) {
+      @spinning = true
+      @chore = getApp().addChore(method(:onChore))
+    }
+    spinChoreBtn.connect(SEL_UPDATE) { |sender, sel, ptr|
+      @spinning ? sender.disable : sender.enable
+    }
+
+    # Stop spinning
+    stopBtn = FXButton.new(buttonFrame,
+      "&Stop Spin\tStop this mad spinning, I'm getting dizzy", nil,
+      nil, 0, FRAME_THICK|FRAME_RAISED|LAYOUT_FILL_X|LAYOUT_TOP|LAYOUT_LEFT)
+    stopBtn.padLeft, stopBtn.padRight = 10, 10
+    stopBtn.padTop, stopBtn.padBottom = 5, 5
+    stopBtn.connect(SEL_COMMAND) {
+      @spinning = false
+      if @timer
+        getApp().removeTimeout(@timer)
+        @timer = nil
+      end
+      if @chore
+        getApp().removeChore(@chore)
+        @chore = nil
+      end
+    }
+    stopBtn.connect(SEL_UPDATE) { |sender, sel, ptr|
+      @spinning ? sender.enable : sender.disable
+    }
+
+    # Exit button
+    exitBtn = FXButton.new(buttonFrame, "&Exit\tExit the application", nil,
+      getApp(), FXApp::ID_QUIT,
+      FRAME_THICK|FRAME_RAISED|LAYOUT_FILL_X|LAYOUT_TOP|LAYOUT_LEFT)
+    exitBtn.padLeft, exitBtn.padRight = 10, 10
+    exitBtn.padTop, exitBtn.padBottom = 5, 5
+
+    # Make a tooltip
+    FXTooltip.new(getApp())
+
+    # Initialize private variables
+    @spinning = false
+    @chore = nil
+    @timer = nil
+    @angle = 0.0
+    @size = 0.5
+  end
+
+  # Create and initialize
+  def create
+    super
+    show(PLACEMENT_SCREEN)
+  end
+end
+
+if __FILE__ == $0
+  # Construct the application
+  application = FXApp.new("GLTest", "FoxTest")
+
+  # To ensure that the chores-based spin will run as fast as possible,
+  # we can disable the chore in FXRuby's event loop that tries to schedule
+  # other threads. This is OK for this program because there aren't any
+  # other Ruby threads running.
+
+  #application.disableThreads
+
+  # Construct the main window
+  GLTestWindow.new(application)
+
+  # Create the app's windows
+  application.create
+
+  # Run the application
+  application.run
+end
+
+class Facelet
+  attr_accessor :color
+  def initialize(color)
+    @color = color
+  end
+
+  def to_s
+    @color
+  end
+end
+
+class Edge
+  attr_accessor :facelets, :colors
+
+  def initialize(facelets)
+    @facelets = facelets
+    @colors = @facelets.map { |fl| fl.color }
+  end
+
+  def apply(edge)
+    @facelets.each_with_index { |fl, i|
+      fl.color = edge.colors[i]
+    }
+  end
+
+  def inspect
+    "\n%s %s\n%s %s %s" % facelets
+  end
+end
+
+class Side
+  attr_reader :num, :facelets
+  attr_accessor :sides
+
+  def initialize(num)
+    @num = num
+    @sides = []
+    @facelets = []
+    @fl_by_side = {}
+  end
+
+  # facelets & sides
+  #     0
+  #   0 1 2
+  # 3 3 4 5 1
+  #   6 7 8
+  #     2
+
+  def facelets=(facelets)
+    @facelets = facelets.map { |c| Facelet.new(c) }
+    init_facelet 0, 3,0
+    init_facelet 1, 0
+    init_facelet 2, 0,1
+    init_facelet 3, 3
+    init_facelet 5, 1
+    init_facelet 6, 2,3
+    init_facelet 7, 2
+    init_facelet 8, 1,2
+  end
+
+  def <=>(side)
+    self.num <=> side.num
+  end
+
+  def init_facelet(pos, *side_nums)
+    sides = side_nums.map { |num| @sides[num] }.sort
+    @fl_by_side[sides] = pos
+  end
+
+  def []=(color, *sides)
+    @facelets[@fl_by_side[sides.sort]].color = color
+  end
+
+  def values_at(*sides)
+    sides.map { |sides| @facelets[@fl_by_side[sides.sort]] }
+  end
+
+  def inspect(range=nil)
+    if range
+      @facelets.values_at(*(range.to_a)).join(' ')
+    else
+      <<-EOS.gsub(/\d/) { |num| @facelets[num.to_i] }.gsub(/[ABCD]/) { |side| @sides[side[0]-?A].num.to_s }
+           A
+         0 1 2
+       D 3 4 5 B
+         6 7 8
+           C
+      EOS
+    end
+  end
+
+  def get_edge(side)
+    trio = (-1..1).map { |x| (side + x) % 4 }
+    prev_side, this_side, next_side = @sides.values_at(*trio)
+    e = Edge.new(
+      self     .values_at(                    [this_side], [this_side, next_side] ) +
+      this_side.values_at( [self, prev_side], [self     ], [self,      next_side] )
+    )
+    #puts 'Edge created for side %d: ' % side + e.inspect
+    e
+  end
+
+  def turn(dir)
+    #p 'turn side %d in %d' % [num, dir]
+    edges = (0..3).map { |n| get_edge n }
+    for i in 0..3
+      edges[i].apply edges[(i-dir) % 4]
+    end
+  end
+end
+
+class Cube
+  def initialize
+    @sides = []
+    %w(left front right back top bottom).each_with_index { |side, i|
+      eval("@sides[#{i}] = @#{side} = Side.new(#{i})")
+    }
+    @left.sides = [@top, @front, @bottom, @back]
+    @front.sides = [@top, @right, @bottom, @left]
+    @right.sides = [@top, @back, @bottom, @front]
+    @back.sides = [@top, @left, @bottom, @right]
+    @top.sides = [@back, @right, @front, @left]
+    @bottom.sides = [@front, @right, @back, @left]
+  end
+
+  def read_facelets(fs)
+    pattern = Regexp.new(<<-EOP.gsub(/\w/, '\w').gsub(/\s+/, '\s*'))
+        (w w w)
+        (w w w)
+        (w w w)
+(r r r) (g g g) (b b b) (o o o)
+(r r r) (g g g) (b b b) (o o o)
+(r r r) (g g g) (b b b) (o o o)
+        (y y y)
+        (y y y)
+        (y y y)
+    EOP
+    md = pattern.match(fs).to_a
+
+    @top.facelets = parse_facelets(md.values_at(1,2,3))
+    @left.facelets = parse_facelets(md.values_at(4,8,12))
+    @front.facelets = parse_facelets(md.values_at(5,9,13))
+    @right.facelets = parse_facelets(md.values_at(6,10,14))
+    @back.facelets = parse_facelets(md.values_at(7,11,15))
+    @bottom.facelets = parse_facelets(md.values_at(16,17,18))
+  end
+
+  def turn(side, dir)
+    #p 'turn %d in %d' % [side, dir]
+    @sides[side].turn(dir)
+    #puts inspect
+  end
+
+  def inspect
+    <<-EOF.gsub(/(\d):(\d)-(\d)/) { @sides[$1.to_i].inspect(Range.new($2.to_i, $3.to_i)) }
+      4:0-2
+      4:3-5
+      4:6-8
+0:0-2 1:0-2 2:0-2 3:0-2
+0:3-5 1:3-5 2:3-5 3:3-5
+0:6-8 1:6-8 2:6-8 3:6-8
+      5:0-2
+      5:3-5
+      5:6-8
+    EOF
+  end
+
+private
+  def parse_facelets(rows)
+    rows.join.delete(' ').split(//)
+  end
+end
+
+#$stdin = DATA
+
+gets.to_i.times do |i|
+  puts "Scenario ##{i+1}:"
+  fs = ''
+  9.times { fs << gets }
+  cube = Cube.new
+  cube.read_facelets fs
+  gets.to_i.times do |t|
+    side, dir = gets.split.map {|s| s.to_i}
+    cube.turn(side, dir)
+  end
+  puts cube.inspect
+  puts
+end
+
+# 2004 by murphy <korny@cYcnus.de>
+# GPL
+class Scenario
+	class TimePoint
+		attr_reader :data
+		def initialize *data
+			@data = data
+		end
+
+		def [] i
+			@data[i] or 0
+		end
+
+		include Comparable
+		def <=> tp
+			r = 0
+			[@data.size, tp.data.size].max.times do |i|
+				r = self[i] <=> tp[i]
+				return r if r.nonzero?
+			end
+			0
+		end
+
+		def - tp
+			r = []
+			[@data.size, tp.data.size].max.times do |i|
+				r << self[i] - tp[i]
+			end
+			r
+		end
+
+		def inspect
+			# 01/01/1800 00:00:00
+			'%02d/%02d/%04d %02d:%02d:%02d' % @data.values_at(1, 2, 0, 3, 4, 5)
+		end
+	end
+
+	ONE_HOUR = TimePoint.new 0, 0, 0, 1, 0, 0
+
+	APPOINTMENT_PATTERN = /
+		( \d{4} ) \s ( \d{2} ) \s ( \d{2} ) \s ( \d{2} ) \s ( \d{2} ) \s ( \d{2} ) \s
+		( \d{4} ) \s ( \d{2} ) \s ( \d{2} ) \s ( \d{2} ) \s ( \d{2} ) \s ( \d{2} )
+	/x
+
+	def initialize io
+		@team_size = io.gets.to_i
+		@data = [ [TimePoint.new(1800, 01, 01, 00, 00, 00), @team_size] ]
+		@team_size.times do  # each team member
+			io.gets.to_i.times do  # each appointment
+				m = APPOINTMENT_PATTERN.match io.gets
+				@data << [TimePoint.new(*m.captures[0,6].map { |x| x.to_i }), -1]
+				@data << [TimePoint.new(*m.captures[6,6].map { |x| x.to_i }), +1]
+			end
+		end
+		@data << [TimePoint.new(2200, 01, 01, 00, 00, 00), -@team_size]
+	end
+
+	def print_time_plan
+		n = 0
+		appointment = nil
+		no_appointment = true
+		@data.sort_by { |x| x[0] }.each do |x|
+			tp, action = *x
+			n += action
+			# at any time during the meeting, at least two team members need to be there
+			# and at most one team member is allowed to be absent
+			if n >= 2 and (@team_size - n) <= 1
+				appointment ||= tp
+			else
+				if appointment
+					# the meeting should be at least one hour in length
+					if TimePoint.new(*(tp - appointment)) >= ONE_HOUR
+						puts 'appointment possible from %p to %p' % [appointment, tp]
+						no_appointment = false
+					end
+					appointment = false
+				end
+			end
+		end
+		puts 'no appointment possible' if no_appointment
+	end
+end
+
+# read the data
+DATA.gets.to_i.times do |si| # each scenario
+	puts 'Scenario #%d:' % (si + 1)
+	sc = Scenario.new DATA
+	sc.print_time_plan
+	puts
+end
+
+#__END__
+2
+3
+3
+2002 06 28 15 00 00 2002 06 28 18 00 00 TUD Contest Practice Session
+2002 06 29 10 00 00 2002 06 29 15 00 00 TUD Contest
+2002 11 15 15 00 00 2002 11 17 23 00 00 NWERC Delft
+4
+2002 06 25 13 30 00 2002 06 25 15 30 00 FIFA World Cup Semifinal I
+2002 06 26 13 30 00 2002 06 26 15 30 00 FIFA World Cup Semifinal II
+2002 06 29 13 00 00 2002 06 29 15 00 00 FIFA World Cup Third Place
+2002 06 30 13 00 00 2002 06 30 15 00 00 FIFA World Cup Final
+1
+2002 06 01 00 00 00 2002 06 29 18 00 00 Preparation of Problem Set
+2
+1
+1800 01 01 00 00 00 2200 01 01 00 00 00 Solving Problem 8
+0
+
+require 'token_consts'
+require 'symbol'
+require 'ctype'
+require 'error'
+
+class Fixnum
+	# Treat char as a digit and return it's value as Fixnum.
+	# Returns nonsense for non-digits.
+	# Examples:
+	# <code>
+	# RUBY_VERSION[0].digit == '1.8.2'[0].digit == 1
+	# </code>
+	#
+	# <code>
+	# ?6.digit == 6
+	# </code>
+	#
+	# <code>
+	# ?A.digit == 17
+	# </code>
+	def digit
+		self - ?0
+	end
+end
+
+##
+# Stellt einen einfachen Scanner f�r die lexikalische Analyse der Sprache Pas-0 dar.
+#
+# @author Andreas Kunert
+# Ruby port by murphy
+class Scanner
+
+	include TokenConsts
+
+	attr_reader :line, :pos
+
+	# To allow Scanner.new without parameters.
+	DUMMY_INPUT = 'dummy file'
+	def DUMMY_INPUT.getc
+		nil
+	end
+
+	##
+	# Erzeugt einen Scanner, der als Eingabe das �bergebene IO benutzt.
+	def initialize input = DUMMY_INPUT
+		@line = 1
+		@pos = 0
+
+		begin
+			@input = input
+			@next_char = @input.getc
+		rescue IOError  # TODO show the reason!
+			Error.ioError
+			raise
+		end
+	end
+
+	##
+	# Liest das n
+	def read_next_char
+		begin
+			@pos += 1
+			@current_char = @next_char
+			@next_char = @input.getc
+		rescue IOError
+			Error.ioError
+			raise
+		end
+	end
+
+	##
+	# Sucht das n�chste Symbol, identifiziert es, instantiiert ein entsprechendes
+	# PascalSymbol-Objekt und gibt es zur�ck.
+	# @see Symbol
+	# @return das gefundene Symbol als PascalSymbol-Objekt
+	def get_symbol
+		current_symbol = nil
+		until current_symbol
+			read_next_char
+
+			if @current_char.alpha?
+				identifier = @current_char.chr
+				while @next_char.alpha? or @next_char.digit?
+					identifier << @next_char
+					read_next_char
+				end
+				current_symbol = handle_identifier(identifier.upcase)
+			elsif @current_char.digit?
+				current_symbol = number
+			else
+				case @current_char
+				when ?\s
+					# ignore
+				when ?\n
+					new_line
+				when nil
+					current_symbol = PascalSymbol.new EOP
+				when ?{
+					comment
+
+				when ?:
+					if @next_char == ?=
+						read_next_char
+						current_symbol = PascalSymbol.new BECOMES
+					else
+						current_symbol = PascalSymbol.new COLON
+					end
+
+				when ?<
+					if (@next_char == ?=)
+						read_next_char
+						current_symbol = PascalSymbol.new LEQSY
+					elsif (@next_char == ?>)
+						read_next_char
+						current_symbol = PascalSymbol.new NEQSY
+					else
+						current_symbol = PascalSymbol.new LSSSY
+					end
+
+				when ?>
+					if (@next_char == ?=)
+						read_next_char
+						current_symbol = PascalSymbol.new GEQSY
+					else
+						current_symbol = PascalSymbol.new GRTSY
+					end
+
+				when ?. then current_symbol = PascalSymbol.new PERIOD
+				when ?( then current_symbol = PascalSymbol.new LPARENT
+				when ?, then current_symbol = PascalSymbol.new COMMA
+				when ?* then current_symbol = PascalSymbol.new TIMES
+				when ?/ then current_symbol = PascalSymbol.new SLASH
+				when ?+ then current_symbol = PascalSymbol.new PLUS
+				when ?- then current_symbol = PascalSymbol.new MINUS
+				when ?= then current_symbol = PascalSymbol.new EQLSY
+				when ?) then current_symbol = PascalSymbol.new RPARENT
+				when ?; then current_symbol = PascalSymbol.new SEMICOLON
+				else
+					Error.error(100, @line, @pos) if @current_char > ?\s
+				end
+			end
+		end
+		current_symbol
+	end
+
+private
+	##
+	# Versucht, in dem gegebenen String ein Schl�sselwort zu erkennen.
+	# Sollte dabei ein Keyword gefunden werden, so gibt er ein PascalSymbol-Objekt zur�ck, das
+	# das entsprechende Keyword repr�sentiert. Ansonsten besteht die R�ckgabe aus
+	# einem SymbolIdent-Objekt (abgeleitet von PascalSymbol), das den String 1:1 enth�lt
+	# @see symbol
+	# @return falls Keyword gefunden, zugeh�riges PascalSymbol, sonst SymbolIdent
+	def handle_identifier identifier
+		if sym = KEYWORD_SYMBOLS[identifier]
+			PascalSymbol.new sym
+		else
+			SymbolIdent.new identifier
+		end
+	end
+
+	MAXINT = 2**31 - 1
+	MAXINT_DIV_10  = MAXINT / 10
+	MAXINT_MOD_10  = MAXINT % 10
+	##
+	# Versucht, aus dem gegebenen Zeichen und den folgenden eine Zahl zusammenzusetzen.
+	# Dabei wird der relativ intuitive Algorithmus benutzt, die endg�ltige Zahl bei
+	# jeder weiteren Ziffer mit 10 zu multiplizieren und diese dann mit der Ziffer zu
+	# addieren. Sonderf�lle bestehen dann nur noch in der Behandlung von reellen Zahlen.
+	# <BR>
+	# Treten dabei kein Punkt oder ein E auf, so gibt diese Methode ein SymbolIntCon-Objekt
+	# zur�ck, ansonsten (reelle Zahl) ein SymbolRealCon-Objekt. Beide Symbole enthalten
+	# jeweils die Zahlwerte.
+	# <BR>
+	# Anmerkung: Diese Funktion ist mit Hilfe der Java/Ruby-API deutlich leichter zu realisieren.
+	# Sie wurde dennoch so implementiert, um den Algorithmus zu demonstrieren
+	# @see symbol
+	# @return SymbolIntcon- oder SymbolRealcon-Objekt, das den Zahlwert enth�lt
+	def number
+		is_integer = true
+		integer_too_long = false
+		exponent = 0
+		exp_counter = -1
+		exp_sign = 1
+
+		integer_mantisse = @current_char.digit
+
+		while (@next_char.digit? and integer_mantisse < MAXINT_DIV_10) or
+		 (integer_mantisse == MAXINT_DIV_10 and @next_char.digit <= MAXINT_MOD_10)
+			integer_mantisse *= 10
+			integer_mantisse += @next_char.digit
+			read_next_char
+		end
+
+		real_mantisse = integer_mantisse
+
+		while @next_char.digit?
+			integer_too_long = true
+			real_mantisse *= 10
+			real_mantisse += @next_char.digit
+			read_next_char
+		end
+		if @next_char == ?.
+			read_next_char
+			is_integer = false
+			unless @next_char.digit?
+				Error.error 101, @line, @pos
+			end
+			while @next_char.digit?
+				real_mantisse += @next_char.digit * (10 ** exp_counter)
+				read_next_char
+				exp_counter -= 1
+			end
+		end
+		if @next_char == ?E
+			is_integer = false
+			read_next_char
+			if @next_char == ?-
+				exp_sign = -1
+				read_next_char
+			end
+			unless @next_char.digit?
+				Error.error 101, @line, @pos
+			end
+			while @next_char.digit?
+				exponent *= 10
+				exponent += @next_char.digit
+				read_next_char
+			end
+		end
+
+		if is_integer
+			if integer_too_long
+				Error.error 102, @line, @pos
+			end
+			SymbolIntcon.new integer_mantisse
+		else
+			SymbolRealcon.new real_mantisse * (10 ** (exp_sign * exponent))
+		end
+	end
+
+	##
+	# Sorgt f�r ein �berlesen von Kommentaren.
+	# Es werden einfach alle Zeichen bis zu einer schlie�enden Klammer eingelesen
+	# und verworfen.
+	def comment
+		while @current_char != ?}
+			forbid_eop
+			new_line if @current_char == ?\n
+			read_next_char
+		end
+	end
+
+	def new_line
+		@line += 1
+		@pos = 0
+	end
+
+	def forbid_eop
+		if eop?
+			Error.error 103, @line, @pos
+		end
+		exit
+	end
+
+	def eop?
+		@current_char.nil?
+	end
+end
+
+##
+# L��t ein Testprogramm ablaufen.
+# Dieses erzeugt sich ein Scanner-Objekt und ruft an diesem kontinuierlich bis zum Dateiende
+# get_symbol auf.
+if $0 == __FILE__
+	scan = Scanner.new(File.new(ARGV[0] || 'test.pas'))
+	loop do
+		c = scan.get_symbol
+		puts c
+		break if c.typ == TokenConsts::EOP
+	end
+end
+
diff --git a/test/scanners/ruby/example.out.raydebug b/test/scanners/ruby/example.out.raydebug
new file mode 100644
index 0000000..be68a13
--- /dev/null
+++ b/test/scanners/ruby/example.out.raydebug
@@ -0,0 +1,3789 @@
+reserved(module) class(CodeRay)
+	reserved(module) class(Scanners)
+
+reserved(class) class(Ruby) operator(<) constant(Scanner)
+
+	constant(RESERVED_WORDS) operator(=) operator([)
+		string<delimiter(')content(and)delimiter(')>operator(,) string<delimiter(')content(def)delimiter(')>operator(,) string<delimiter(')content(end)delimiter(')>operator(,) string<delimiter(')content(in)delimiter(')>operator(,) string<delimiter(')content(or)delimiter(')>operator(,) string<delimiter(')content(unless)delimiter(')>operator(,) string<delimiter(')content(begin)delimiter(')>operator(,)
+		string<delimiter(')content(defined?)delimiter(')>operator(,) string<delimiter(')content(ensure)delimiter(')>operator(,) string<delimiter(')content(module)delimiter(')>operator(,) string<delimiter(')content(redo)delimiter(')>operator(,) string<delimiter(')content(super)delimiter(')>operator(,) string<delimiter(')content(until)delimiter(')>operator(,)
+		string<delimiter(')content(BEGIN)delimiter(')>operator(,) string<delimiter(')content(break)delimiter(')>operator(,) string<delimiter(')content(do)delimiter(')>operator(,) string<delimiter(')content(next)delimiter(')>operator(,) string<delimiter(')content(rescue)delimiter(')>operator(,) string<delimiter(')content(then)delimiter(')>operator(,)
+		string<delimiter(')content(when)delimiter(')>operator(,) string<delimiter(')content(END)delimiter(')>operator(,) string<delimiter(')content(case)delimiter(')>operator(,) string<delimiter(')content(else)delimiter(')>operator(,) string<delimiter(')content(for)delimiter(')>operator(,) string<delimiter(')content(retry)delimiter(')>operator(,)
+		string<delimiter(')content(while)delimiter(')>operator(,) string<delimiter(')content(alias)delimiter(')>operator(,) string<delimiter(')content(class)delimiter(')>operator(,) string<delimiter(')content(elsif)delimiter(')>operator(,) string<delimiter(')content(if)delimiter(')>operator(,) string<delimiter(')content(not)delimiter(')>operator(,) string<delimiter(')content(return)delimiter(')>operator(,)
+		string<delimiter(')content(undef)delimiter(')>operator(,) string<delimiter(')content(yield)delimiter(')>operator(,)
+	operator(])
+
+	constant(DEF_KEYWORDS) operator(=) operator([)string<delimiter(')content(def)delimiter(')>operator(])
+	constant(MODULE_KEYWORDS) operator(=) operator([)string<delimiter(')content(class)delimiter(')>operator(,) string<delimiter(')content(module)delimiter(')>operator(])
+	constant(DEF_NEW_STATE) operator(=) constant(WordList)operator(.)ident(new)operator(()symbol(:initial)operator(\))operator(.)
+		ident(add)operator(()constant(DEF_KEYWORDS)operator(,) symbol(:def_expected)operator(\))operator(.)
+		ident(add)operator(()constant(MODULE_KEYWORDS)operator(,) symbol(:module_expected)operator(\))
+
+	constant(WORDS_ALLOWING_REGEXP) operator(=) operator([)
+		string<delimiter(')content(and)delimiter(')>operator(,) string<delimiter(')content(or)delimiter(')>operator(,) string<delimiter(')content(not)delimiter(')>operator(,) string<delimiter(')content(while)delimiter(')>operator(,) string<delimiter(')content(until)delimiter(')>operator(,) string<delimiter(')content(unless)delimiter(')>operator(,) string<delimiter(')content(if)delimiter(')>operator(,) string<delimiter(')content(elsif)delimiter(')>operator(,) string<delimiter(')content(when)delimiter(')>
+	operator(])
+	constant(REGEXP_ALLOWED) operator(=) constant(WordList)operator(.)ident(new)operator(()pre_constant(false)operator(\))operator(.)
+		ident(add)operator(()constant(WORDS_ALLOWING_REGEXP)operator(,) symbol(:set)operator(\))
+
+	constant(PREDEFINED_CONSTANTS) operator(=) operator([)
+		string<delimiter(')content(nil)delimiter(')>operator(,) string<delimiter(')content(true)delimiter(')>operator(,) string<delimiter(')content(false)delimiter(')>operator(,) string<delimiter(')content(self)delimiter(')>operator(,)
+		string<delimiter(')content(DATA)delimiter(')>operator(,) string<delimiter(')content(ARGV)delimiter(')>operator(,) string<delimiter(')content(ARGF)delimiter(')>operator(,) string<delimiter(')content(__FILE__)delimiter(')>operator(,) string<delimiter(')content(__LINE__)delimiter(')>operator(,)
+	operator(])
+
+	constant(IDENT_KIND) operator(=) constant(WordList)operator(.)ident(new)operator(()symbol(:ident)operator(\))operator(.)
+		ident(add)operator(()constant(RESERVED_WORDS)operator(,) symbol(:reserved)operator(\))operator(.)
+		ident(add)operator(()constant(PREDEFINED_CONSTANTS)operator(,) symbol(:pre_constant)operator(\))
+
+	constant(METHOD_NAME) operator(=) regexp<delimiter(/)content( )inline<delimiter(#{)constant(IDENT)delimiter(})>content( [?!]? )delimiter(/)modifier(xo)>
+	constant(METHOD_NAME_EX) operator(=) regexp<delimiter(/)content(
+	 )inline<delimiter(#{)constant(METHOD_NAME)delimiter(})>content(  # common methods: split, foo=, empty?, gsub!
+	 | )char(\\*)char(\\*)content(?         # multiplication and power
+	 | [-+~]@?       # plus, minus
+	 | [)char(\\/)content(%&|^`]     # division, modulo or format strings, &and, |or, ^xor, `system`
+	 | )char(\\[)char(\\])content(=?        # array getter and setter
+	 | <=?>? | >=?   # comparison, rocket operator
+	 | << | >>       # append or shift left, shift right
+	 | ===?          # simple equality and case equality
+	)delimiter(/)modifier(ox)>
+	constant(GLOBAL_VARIABLE) operator(=) regexp<delimiter(/)content( )char(\\$)content( (?: )inline<delimiter(#{)constant(IDENT)delimiter(})>content( | )char(\\d)content(+ | [~&+`'=)char(\\/)content(,;_.<>!@0$?*":F)char(\\\\)content(] | -[a-zA-Z_0-9] \) )delimiter(/)modifier(ox)>
+
+	constant(DOUBLEQ) operator(=) regexp<delimiter(/)content( "  [^")char(\\#)char(\\\\)content(]*  (?: (?: )char(\\#)char(\\{)content(.*?)char(\\})content( | )char(\\#)content((?:$"\)?  | )char(\\\\)content(. \) [^")char(\\#)char(\\\\)content(]*  \)* "?  )delimiter(/)modifier(ox)>
+	constant(SINGLEQ) operator(=) regexp<delimiter(/)content( '  [^')char(\\\\)content(]*    (?:                              )char(\\\\)content(.   [^')char(\\\\)content(]*    \)* '?  )delimiter(/)modifier(ox)>
+	constant(STRING)  operator(=) regexp<delimiter(/)content( )inline<delimiter(#{)constant(SINGLEQ)delimiter(})>content( | )inline<delimiter(#{)constant(DOUBLEQ)delimiter(})>content( )delimiter(/)modifier(ox)>
+	constant(SHELL)   operator(=) regexp<delimiter(/)content( `  [^`)char(\\#)char(\\\\)content(]*  (?: (?: )char(\\#)char(\\{)content(.*?)char(\\})content( | )char(\\#)content((?:$`\)?  | )char(\\\\)content(. \) [^`)char(\\#)char(\\\\)content(]*  \)* `?  )delimiter(/)modifier(ox)>
+	constant(REGEXP)  operator(=) regexp<delimiter(/)content( )char(\\/)content( [^)char(\\/)char(\\#)char(\\\\)content(]* (?: (?: )char(\\#)char(\\{)content(.*?)char(\\})content( | )char(\\#)content((?:$)char(\\/)content(\)? | )char(\\\\)content(. \) [^)char(\\/)char(\\#)char(\\\\)content(]* \)* )char(\\/)content(? )delimiter(/)modifier(ox)>
+
+	constant(DECIMAL) operator(=) regexp<delimiter(/)char(\\d)content(+(?:_)char(\\d)content(+\)*)delimiter(/)>  comment(# doesn't recognize 09 as octal error)
+	constant(OCTAL) operator(=) regexp<delimiter(/)content(0_?[0-7]+(?:_[0-7]+\)*)delimiter(/)>
+	constant(HEXADECIMAL) operator(=) regexp<delimiter(/)content(0x[0-9A-Fa-f]+(?:_[0-9A-Fa-f]+\)*)delimiter(/)>
+	constant(BINARY) operator(=) regexp<delimiter(/)content(0b[01]+(?:_[01]+\)*)delimiter(/)>
+
+	constant(EXPONENT) operator(=) regexp<delimiter(/)content( [eE] [+-]? )inline<delimiter(#{)constant(DECIMAL)delimiter(})>content( )delimiter(/)modifier(ox)>
+	constant(FLOAT) operator(=) regexp<delimiter(/)content( )inline<delimiter(#{)constant(DECIMAL)delimiter(})>content( (?: )inline<delimiter(#{)constant(EXPONENT)delimiter(})>content( | )char(\\.)content( )inline<delimiter(#{)constant(DECIMAL)delimiter(})>content( )inline<delimiter(#{)constant(EXPONENT)delimiter(})>content(? \) )delimiter(/)>
+	constant(INTEGER) operator(=) regexp<delimiter(/)inline<delimiter(#{)constant(OCTAL)delimiter(})>content(|)inline<delimiter(#{)constant(HEXADECIMAL)delimiter(})>content(|)inline<delimiter(#{)constant(BINARY)delimiter(})>content(|)inline<delimiter(#{)constant(DECIMAL)delimiter(})>delimiter(/)>
+
+	reserved(def) method(reset)
+		reserved(super)
+		instance_variable(@regexp_allowed) operator(=) pre_constant(false)
+	reserved(end)
+
+	reserved(def) method(next_token)
+		reserved(return) reserved(if) instance_variable(@scanner)operator(.)ident(eos?)
+
+		ident(kind) operator(=) symbol(:error)
+		reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\s)content(+)delimiter(/)>operator(\))  comment(# in every state)
+			ident(kind) operator(=) symbol(:space)
+			instance_variable(@regexp_allowed) operator(=) symbol(:set) reserved(if) instance_variable(@regexp_allowed) reserved(or) instance_variable(@scanner)operator(.)ident(matched)operator(.)ident(index)operator(()integer(?\\n)operator(\))  comment(# delayed flag setting)
+
+		reserved(elsif) instance_variable(@state) operator(==) symbol(:def_expected)
+			reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content( (?: (?:)inline<delimiter(#{)constant(IDENT)delimiter(})>content((?:)char(\\.)content(|::\)\)* | (?:@@?|$\)? )inline<delimiter(#{)constant(IDENT)delimiter(})>content((?:)char(\\.)content(|::\) \) )inline<delimiter(#{)constant(METHOD_NAME_EX)delimiter(})>content( )delimiter(/)modifier(ox)>operator(\))
+				ident(kind) operator(=) symbol(:method)
+				instance_variable(@state) operator(=) symbol(:initial)
+			reserved(else)
+				instance_variable(@scanner)operator(.)ident(getch)
+			reserved(end)
+			instance_variable(@state) operator(=) symbol(:initial)
+
+		reserved(elsif) instance_variable(@state) operator(==) symbol(:module_expected)
+			reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content(<<)delimiter(/)>operator(\))
+				ident(kind) operator(=) symbol(:operator)
+			reserved(else)
+				reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content( (?: )inline<delimiter(#{)constant(IDENT)delimiter(})>content( (?:)char(\\.)content(|::\)\)* )inline<delimiter(#{)constant(IDENT)delimiter(})>content( )delimiter(/)modifier(ox)>operator(\))
+					ident(kind) operator(=) symbol(:method)
+				reserved(else)
+					instance_variable(@scanner)operator(.)ident(getch)
+				reserved(end)
+				instance_variable(@state) operator(=) symbol(:initial)
+			reserved(end)
+
+		reserved(elsif) comment(# state == :initial)
+			comment(# IDENTIFIERS, KEYWORDS)
+			reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(GLOBAL_VARIABLE)operator(\))
+				ident(kind) operator(=) symbol(:global_variable)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content( @@ )inline<delimiter(#{)constant(IDENT)delimiter(})>content( )delimiter(/)modifier(ox)>operator(\))
+				ident(kind) operator(=) symbol(:class_variable)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content( @ )inline<delimiter(#{)constant(IDENT)delimiter(})>content( )delimiter(/)modifier(ox)>operator(\))
+				ident(kind) operator(=) symbol(:instance_variable)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content( __END__)char(\\n)content( ( (?!)char(\\#)content(CODE)char(\\#)content(\) .* \)? | )char(\\#)content([^)char(\\n)content(]* | =begin(?=)char(\\s)content(\).*? )char(\\n)content(=end(?=)char(\\s)content(|)char(\\z)content(\)(?:[^)char(\\n)content(]*\)? )delimiter(/)modifier(mx)>operator(\))
+				ident(kind) operator(=) symbol(:comment)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(METHOD_NAME)operator(\))
+				reserved(if) instance_variable(@last_token_dot)
+					ident(kind) operator(=) symbol(:ident)
+				reserved(else)
+					ident(matched) operator(=) instance_variable(@scanner)operator(.)ident(matched)
+					ident(kind) operator(=) constant(IDENT_KIND)operator([)ident(matched)operator(])
+					reserved(if) ident(kind) operator(==) symbol(:ident) reserved(and) ident(matched) operator(=)operator(~) regexp<delimiter(/)content(^[A-Z])delimiter(/)>
+						ident(kind) operator(=) symbol(:constant)
+					reserved(elsif) ident(kind) operator(==) symbol(:reserved)
+						instance_variable(@state) operator(=) constant(DEF_NEW_STATE)operator([)ident(matched)operator(])
+						instance_variable(@regexp_allowed) operator(=) constant(REGEXP_ALLOWED)operator([)ident(matched)operator(])
+					reserved(end)
+				reserved(end)
+
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(STRING)operator(\))
+				ident(kind) operator(=) symbol(:string)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(SHELL)operator(\))
+				ident(kind) operator(=) symbol(:shell)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content(<<
+				(?:
+					([a-zA-Z_0-9]+\)
+						(?: .*? ^)char(\\1)content($ | .* \)
+				|
+					-([a-zA-Z_0-9]+\)
+						(?: .*? ^)char(\\s)content(*)char(\\2)content($ | .* \)
+				|
+					([")char(\\')content(`]\) (.+?\) )char(\\3)content(
+						(?: .*? ^)char(\\4)content($ | .* \)
+				|
+					- ([")char(\\')content(`]\) (.+?\) )char(\\5)content(
+						(?: .*? ^)char(\\s)content(*)char(\\6)content($ | .* \)
+				\)
+			)delimiter(/)modifier(mxo)>operator(\))
+				ident(kind) operator(=) symbol(:string)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\/)delimiter(/)>operator(\)) reserved(and) instance_variable(@regexp_allowed)
+				instance_variable(@scanner)operator(.)ident(unscan)
+				instance_variable(@scanner)operator(.)ident(scan)operator(()constant(REGEXP)operator(\))
+				ident(kind) operator(=) symbol(:regexp)
+regexp<delimiter(/)content(%(?:[Qqxrw](?:)char(\\()content([^\)#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)[^\)#)char(\\\\)char(\\\\)content(]*\)*)char(\\\))content(?|)char(\\[)content([^)char(\\])content(#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)[^)char(\\])content(#)char(\\\\)char(\\\\)content(]*\)*)char(\\])content(?|)char(\\{)content([^}#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)[^}#)char(\\\\)char(\\\\)content(]*\)*)char(\\})content(?|<[^>#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)[^>#)char(\\\\)char(\\\\)content(]*\)*>?|([^a-zA-Z)char(\\\\)char(\\\\)content(]\)(?:(?!)char(\\1)content(\)[^#)char(\\\\)char(\\\\)content(]\)*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)(?:(?!)char(\\1)content(\)[^#)char(\\\\)char(\\\\)content(]\)*\)*)char(\\1)content(?\)|)char(\\()content([^\)#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)[^\)#)char(\\\\)char(\\\\)content(]*\)*)char(\\\))content(?|)char(\\[)content([^)char(\\])content(#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)[^)char(\\])content(#)char(\\\\)char(\\\\)content(]*\)*)char(\\])content(?|)char(\\{)content([^}#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)[^}#)char(\\\\)char(\\\\)content(]*\)*)char(\\})content(?|<[^>#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)[^>#)char(\\\\)char(\\\\)content(]*\)*>?|([^a-zA-Z)char(\\s)char(\\\\)char(\\\\)content(]\)(?:(?!)char(\\2)content(\)[^#)char(\\\\)char(\\\\)content(]\)*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#|)char(\\\\)char(\\\\)content(.\)(?:(?!)char(\\2)content(\)[^#)char(\\\\)char(\\\\)content(]\)*\)*)char(\\2)content(?|)char(\\\\)char(\\\\)content([^#)char(\\\\)char(\\\\)content(]*(?:(?:#)char(\\{)content(.*?)char(\\})content(|#\)[^#)char(\\\\)char(\\\\)content(]*\)*)char(\\\\)char(\\\\)content(?\))delimiter(/)>
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content(:(?:)inline<delimiter(#{)constant(GLOBAL_VARIABLE)delimiter(})>content(|)inline<delimiter(#{)constant(METHOD_NAME_EX)delimiter(})>content(|)inline<delimiter(#{)constant(STRING)delimiter(})>content(\))delimiter(/)modifier(ox)>operator(\))
+				ident(kind) operator(=) symbol(:symbol)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content(
+				)char(\\?)content( (?:
+					[^)char(\\s)char(\\\\)content(]
+				|
+					)char(\\\\)content( (?:M-)char(\\\\)content(C-|C-)char(\\\\)content(M-|M-)char(\\\\)content(c|c)char(\\\\)content(M-|c|C-|M-\)\)? (?: )char(\\\\)content( (?: . | [0-7]{3} | x[0-9A-Fa-f][0-9A-Fa-f] \)
+				\)
+			)delimiter(/)modifier(mox)>operator(\))
+				ident(kind) operator(=) symbol(:integer)
+
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content( [-+*)char(\\/)content(%=<>;,|&!(\))char(\\[)char(\\])content({}~?] | )char(\\.)char(\\.)content(?)char(\\.)content(? | ::? )delimiter(/)modifier(x)>operator(\))
+				ident(kind) operator(=) symbol(:operator)
+				instance_variable(@regexp_allowed) operator(=) symbol(:set) reserved(if) instance_variable(@scanner)operator(.)ident(matched)operator([)integer(-1)operator(,)integer(1)operator(]) operator(=)operator(~) regexp<delimiter(/)content([~=!<>|&^,)char(\\()char(\\[)content(+)char(\\-)char(\\/)char(\\*)content(%])char(\\z)delimiter(/)>
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(FLOAT)operator(\))
+				ident(kind) operator(=) symbol(:float)
+			reserved(elsif) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(INTEGER)operator(\))
+				ident(kind) operator(=) symbol(:integer)
+			reserved(else)
+				instance_variable(@scanner)operator(.)ident(getch)
+			reserved(end)
+		reserved(end)
+
+		ident(token) operator(=) constant(Token)operator(.)ident(new) instance_variable(@scanner)operator(.)ident(matched)operator(,) ident(kind)
+
+		reserved(if) ident(kind) operator(==) symbol(:regexp)
+			ident(token)operator(.)ident(text) operator(<<) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content([eimnosux]*)delimiter(/)>operator(\))
+		reserved(end)
+
+		instance_variable(@regexp_allowed) operator(=) operator(()instance_variable(@regexp_allowed) operator(==) symbol(:set)operator(\))  comment(# delayed flag setting)
+
+		ident(token)
+	reserved(end)
+reserved(end)
+
+ident(register) constant(Ruby)operator(,) string<delimiter(')content(ruby)delimiter(')>operator(,) string<delimiter(')content(rb)delimiter(')>
+
+	reserved(end)
+reserved(end)
+reserved(class) class(Set)
+  ident(include) constant(Enumerable)
+
+  comment(# Creates a new set containing the given objects.)
+  reserved(def) pre_constant(self)operator(.)operator([])operator(()operator(*)ident(ary)operator(\))
+    ident(new)operator(()ident(ary)operator(\))
+  reserved(end)
+
+  comment(# Creates a new set containing the elements of the given enumerable)
+  comment(# object.)
+  comment(#)
+  comment(# If a block is given, the elements of enum are preprocessed by the)
+  comment(# given block.)
+  reserved(def) method(initialize)operator(()ident(enum) operator(=) pre_constant(nil)operator(,) operator(&)ident(block)operator(\)) comment(# :yields: o)
+    instance_variable(@hash) operator(||=) constant(Hash)operator(.)ident(new)
+
+    ident(enum)operator(.)ident(nil?) reserved(and) reserved(return)
+
+    reserved(if) ident(block)
+      ident(enum)operator(.)ident(each) operator({) operator(|)ident(o)operator(|) ident(add)operator(()ident(block)operator([)ident(o)operator(])operator(\)) operator(})
+    reserved(else)
+      ident(merge)operator(()ident(enum)operator(\))
+    reserved(end)
+  reserved(end)
+
+  comment(# Copy internal hash.)
+  reserved(def) method(initialize_copy)operator(()ident(orig)operator(\))
+    instance_variable(@hash) operator(=) ident(orig)operator(.)ident(instance_eval)operator({)instance_variable(@hash)operator(})operator(.)ident(dup)
+  reserved(end)
+
+  comment(# Returns the number of elements.)
+  reserved(def) method(size)
+    instance_variable(@hash)operator(.)ident(size)
+  reserved(end)
+  reserved(alias) ident(length) ident(size)
+
+  comment(# Returns true if the set contains no elements.)
+  reserved(def) method(empty?)
+    instance_variable(@hash)operator(.)ident(empty?)
+  reserved(end)
+
+  comment(# Removes all elements and returns self.)
+  reserved(def) method(clear)
+    instance_variable(@hash)operator(.)ident(clear)
+    pre_constant(self)
+  reserved(end)
+
+  comment(# Replaces the contents of the set with the contents of the given)
+  comment(# enumerable object and returns self.)
+  reserved(def) method(replace)operator(()ident(enum)operator(\))
+    reserved(if) ident(enum)operator(.)ident(class) operator(==) pre_constant(self)operator(.)ident(class)
+      instance_variable(@hash)operator(.)ident(replace)operator(()ident(enum)operator(.)ident(instance_eval) operator({) instance_variable(@hash) operator(})operator(\))
+    reserved(else)
+      ident(enum)operator(.)ident(is_a?)operator(()constant(Enumerable)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be enumerable)delimiter(")>
+      ident(clear)
+      ident(enum)operator(.)ident(each) operator({) operator(|)ident(o)operator(|) ident(add)operator(()ident(o)operator(\)) operator(})
+    reserved(end)
+
+    pre_constant(self)
+  reserved(end)
+
+  comment(# Converts the set to an array.  The order of elements is uncertain.)
+  reserved(def) method(to_a)
+    instance_variable(@hash)operator(.)ident(keys)
+  reserved(end)
+
+  reserved(def) method(flatten_merge)operator(()ident(set)operator(,) ident(seen) operator(=) constant(Set)operator(.)ident(new)operator(\))
+    ident(set)operator(.)ident(each) operator({) operator(|)ident(e)operator(|)
+      reserved(if) ident(e)operator(.)ident(is_a?)operator(()constant(Set)operator(\))
+	reserved(if) ident(seen)operator(.)ident(include?)operator(()ident(e_id) operator(=) ident(e)operator(.)ident(object_id)operator(\))
+	  ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(tried to flatten recursive Set)delimiter(")>
+	reserved(end)
+
+	ident(seen)operator(.)ident(add)operator(()ident(e_id)operator(\))
+	ident(flatten_merge)operator(()ident(e)operator(,) ident(seen)operator(\))
+	ident(seen)operator(.)ident(delete)operator(()ident(e_id)operator(\))
+      reserved(else)
+	ident(add)operator(()ident(e)operator(\))
+      reserved(end)
+    operator(})
+
+    pre_constant(self)
+  reserved(end)
+  ident(protected) symbol(:flatten_merge)
+
+  comment(# Returns a new set that is a copy of the set, flattening each)
+  comment(# containing set recursively.)
+  reserved(def) method(flatten)
+    pre_constant(self)operator(.)ident(class)operator(.)ident(new)operator(.)ident(flatten_merge)operator(()pre_constant(self)operator(\))
+  reserved(end)
+
+  comment(# Equivalent to Set#flatten, but replaces the receiver with the)
+  comment(# result in place.  Returns nil if no modifications were made.)
+  reserved(def) method(flatten!)
+    reserved(if) ident(detect) operator({) operator(|)ident(e)operator(|) ident(e)operator(.)ident(is_a?)operator(()constant(Set)operator(\)) operator(})
+      ident(replace)operator(()ident(flatten)operator(()operator(\))operator(\))
+    reserved(else)
+      pre_constant(nil)
+    reserved(end)
+  reserved(end)
+
+  comment(# Returns true if the set contains the given object.)
+  reserved(def) method(include?)operator(()ident(o)operator(\))
+    instance_variable(@hash)operator(.)ident(include?)operator(()ident(o)operator(\))
+  reserved(end)
+  reserved(alias) ident(member?) ident(include?)
+
+  comment(# Returns true if the set is a superset of the given set.)
+  reserved(def) method(superset?)operator(()ident(set)operator(\))
+    ident(set)operator(.)ident(is_a?)operator(()constant(Set)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be a set)delimiter(")>
+    reserved(return) pre_constant(false) reserved(if) ident(size) operator(<) ident(set)operator(.)ident(size)
+    ident(set)operator(.)ident(all?) operator({) operator(|)ident(o)operator(|) ident(include?)operator(()ident(o)operator(\)) operator(})
+  reserved(end)
+
+  comment(# Returns true if the set is a proper superset of the given set.)
+  reserved(def) method(proper_superset?)operator(()ident(set)operator(\))
+    ident(set)operator(.)ident(is_a?)operator(()constant(Set)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be a set)delimiter(")>
+    reserved(return) pre_constant(false) reserved(if) ident(size) operator(<=) ident(set)operator(.)ident(size)
+    ident(set)operator(.)ident(all?) operator({) operator(|)ident(o)operator(|) ident(include?)operator(()ident(o)operator(\)) operator(})
+  reserved(end)
+
+  comment(# Returns true if the set is a subset of the given set.)
+  reserved(def) method(subset?)operator(()ident(set)operator(\))
+    ident(set)operator(.)ident(is_a?)operator(()constant(Set)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be a set)delimiter(")>
+    reserved(return) pre_constant(false) reserved(if) ident(set)operator(.)ident(size) operator(<) ident(size)
+    ident(all?) operator({) operator(|)ident(o)operator(|) ident(set)operator(.)ident(include?)operator(()ident(o)operator(\)) operator(})
+  reserved(end)
+
+  comment(# Returns true if the set is a proper subset of the given set.)
+  reserved(def) method(proper_subset?)operator(()ident(set)operator(\))
+    ident(set)operator(.)ident(is_a?)operator(()constant(Set)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be a set)delimiter(")>
+    reserved(return) pre_constant(false) reserved(if) ident(set)operator(.)ident(size) operator(<=) ident(size)
+    ident(all?) operator({) operator(|)ident(o)operator(|) ident(set)operator(.)ident(include?)operator(()ident(o)operator(\)) operator(})
+  reserved(end)
+
+  comment(# Calls the given block once for each element in the set, passing)
+  comment(# the element as parameter.)
+  reserved(def) method(each)
+    instance_variable(@hash)operator(.)ident(each_key) operator({) operator(|)ident(o)operator(|) reserved(yield)operator(()ident(o)operator(\)) operator(})
+    pre_constant(self)
+  reserved(end)
+
+  comment(# Adds the given object to the set and returns self.  Use +merge+ to)
+  comment(# add several elements at once.)
+  reserved(def) method(add)operator(()ident(o)operator(\))
+    instance_variable(@hash)operator([)ident(o)operator(]) operator(=) pre_constant(true)
+    pre_constant(self)
+  reserved(end)
+  reserved(alias) operator(<<) ident(add)
+
+  comment(# Adds the given object to the set and returns self.  If the)
+  comment(# object is already in the set, returns nil.)
+  reserved(def) method(add?)operator(()ident(o)operator(\))
+    reserved(if) ident(include?)operator(()ident(o)operator(\))
+      pre_constant(nil)
+    reserved(else)
+      ident(add)operator(()ident(o)operator(\))
+    reserved(end)
+  reserved(end)
+
+  comment(# Deletes the given object from the set and returns self.  Use +subtract+ to)
+  comment(# delete several items at once.)
+  reserved(def) method(delete)operator(()ident(o)operator(\))
+    instance_variable(@hash)operator(.)ident(delete)operator(()ident(o)operator(\))
+    pre_constant(self)
+  reserved(end)
+
+  comment(# Deletes the given object from the set and returns self.  If the)
+  comment(# object is not in the set, returns nil.)
+  reserved(def) method(delete?)operator(()ident(o)operator(\))
+    reserved(if) ident(include?)operator(()ident(o)operator(\))
+      ident(delete)operator(()ident(o)operator(\))
+    reserved(else)
+      pre_constant(nil)
+    reserved(end)
+  reserved(end)
+
+  comment(# Deletes every element of the set for which block evaluates to)
+  comment(# true, and returns self.)
+  reserved(def) method(delete_if)
+    instance_variable(@hash)operator(.)ident(delete_if) operator({) operator(|)ident(o)operator(,)operator(|) reserved(yield)operator(()ident(o)operator(\)) operator(})
+    pre_constant(self)
+  reserved(end)
+
+  comment(# Do collect(\) destructively.)
+  reserved(def) method(collect!)
+    ident(set) operator(=) pre_constant(self)operator(.)ident(class)operator(.)ident(new)
+    ident(each) operator({) operator(|)ident(o)operator(|) ident(set) operator(<<) reserved(yield)operator(()ident(o)operator(\)) operator(})
+    ident(replace)operator(()ident(set)operator(\))
+  reserved(end)
+  reserved(alias) ident(map!) ident(collect!)
+
+  comment(# Equivalent to Set#delete_if, but returns nil if no changes were)
+  comment(# made.)
+  reserved(def) method(reject!)
+    ident(n) operator(=) ident(size)
+    ident(delete_if) operator({) operator(|)ident(o)operator(|) reserved(yield)operator(()ident(o)operator(\)) operator(})
+    ident(size) operator(==) ident(n) operator(?) pre_constant(nil) operator(:) pre_constant(self)
+  reserved(end)
+
+  comment(# Merges the elements of the given enumerable object to the set and)
+  comment(# returns self.)
+  reserved(def) method(merge)operator(()ident(enum)operator(\))
+    reserved(if) ident(enum)operator(.)ident(is_a?)operator(()constant(Set)operator(\))
+      instance_variable(@hash)operator(.)ident(update)operator(()ident(enum)operator(.)ident(instance_eval) operator({) instance_variable(@hash) operator(})operator(\))
+    reserved(else)
+      ident(enum)operator(.)ident(is_a?)operator(()constant(Enumerable)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be enumerable)delimiter(")>
+      ident(enum)operator(.)ident(each) operator({) operator(|)ident(o)operator(|) ident(add)operator(()ident(o)operator(\)) operator(})
+    reserved(end)
+
+    pre_constant(self)
+  reserved(end)
+
+  comment(# Deletes every element that appears in the given enumerable object)
+  comment(# and returns self.)
+  reserved(def) method(subtract)operator(()ident(enum)operator(\))
+    ident(enum)operator(.)ident(is_a?)operator(()constant(Enumerable)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be enumerable)delimiter(")>
+    ident(enum)operator(.)ident(each) operator({) operator(|)ident(o)operator(|) ident(delete)operator(()ident(o)operator(\)) operator(})
+    pre_constant(self)
+  reserved(end)
+
+  comment(# Returns a new set built by merging the set and the elements of the)
+  comment(# given enumerable object.)
+  reserved(def) method(|)operator(()ident(enum)operator(\))
+    ident(enum)operator(.)ident(is_a?)operator(()constant(Enumerable)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be enumerable)delimiter(")>
+    ident(dup)operator(.)ident(merge)operator(()ident(enum)operator(\))
+  reserved(end)
+  reserved(alias) operator(+) operator(|)		comment(##)
+  reserved(alias) ident(union) operator(|)		comment(##)
+
+  comment(# Returns a new set built by duplicating the set, removing every)
+  comment(# element that appears in the given enumerable object.)
+  reserved(def) method(-)operator(()ident(enum)operator(\))
+    ident(enum)operator(.)ident(is_a?)operator(()constant(Enumerable)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be enumerable)delimiter(")>
+    ident(dup)operator(.)ident(subtract)operator(()ident(enum)operator(\))
+  reserved(end)
+  reserved(alias) ident(difference) operator(-)	comment(##)
+
+  comment(# Returns a new array containing elements common to the set and the)
+  comment(# given enumerable object.)
+  reserved(def) method(&)operator(()ident(enum)operator(\))
+    ident(enum)operator(.)ident(is_a?)operator(()constant(Enumerable)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be enumerable)delimiter(")>
+    ident(n) operator(=) pre_constant(self)operator(.)ident(class)operator(.)ident(new)
+    ident(enum)operator(.)ident(each) operator({) operator(|)ident(o)operator(|) ident(n)operator(.)ident(add)operator(()ident(o)operator(\)) reserved(if) ident(include?)operator(()ident(o)operator(\)) operator(})
+    ident(n)
+  reserved(end)
+  reserved(alias) ident(intersection) operator(&)	comment(##)
+
+  comment(# Returns a new array containing elements exclusive between the set)
+  comment(# and the given enumerable object.  (set ^ enum\) is equivalent to)
+  comment(# ((set | enum\) - (set & enum\)\).)
+  reserved(def) method(^)operator(()ident(enum)operator(\))
+    ident(enum)operator(.)ident(is_a?)operator(()constant(Enumerable)operator(\)) reserved(or) ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(value must be enumerable)delimiter(")>
+    ident(n) operator(=) ident(dup)
+    ident(enum)operator(.)ident(each) operator({) operator(|)ident(o)operator(|) reserved(if) ident(n)operator(.)ident(include?)operator(()ident(o)operator(\)) reserved(then) ident(n)operator(.)ident(delete)operator(()ident(o)operator(\)) reserved(else) ident(n)operator(.)ident(add)operator(()ident(o)operator(\)) reserved(end) operator(})
+    ident(n)
+  reserved(end)
+
+  comment(# Returns true if two sets are equal.  The equality of each couple)
+  comment(# of elements is defined according to Object#eql?.)
+  reserved(def) method(==)operator(()ident(set)operator(\))
+    ident(equal?)operator(()ident(set)operator(\)) reserved(and) reserved(return) pre_constant(true)
+
+    ident(set)operator(.)ident(is_a?)operator(()constant(Set)operator(\)) operator(&&) ident(size) operator(==) ident(set)operator(.)ident(size) reserved(or) reserved(return) pre_constant(false)
+
+    ident(hash) operator(=) instance_variable(@hash)operator(.)ident(dup)
+    ident(set)operator(.)ident(all?) operator({) operator(|)ident(o)operator(|) ident(hash)operator(.)ident(include?)operator(()ident(o)operator(\)) operator(})
+  reserved(end)
+
+  reserved(def) method(hash)	comment(# :nodoc:)
+    instance_variable(@hash)operator(.)ident(hash)
+  reserved(end)
+
+  reserved(def) method(eql?)operator(()ident(o)operator(\))	comment(# :nodoc:)
+    reserved(return) pre_constant(false) reserved(unless) ident(o)operator(.)ident(is_a?)operator(()constant(Set)operator(\))
+    instance_variable(@hash)operator(.)ident(eql?)operator(()ident(o)operator(.)ident(instance_eval)operator({)instance_variable(@hash)operator(})operator(\))
+  reserved(end)
+
+  comment(# Classifies the set by the return value of the given block and)
+  comment(# returns a hash of {value => set of elements} pairs.  The block is)
+  comment(# called once for each element of the set, passing the element as)
+  comment(# parameter.)
+  comment(#)
+  comment(# e.g.:)
+  comment(#)
+  comment(#   require 'set')
+  comment(#   files = Set.new(Dir.glob("*.rb"\)\))
+  comment(#   hash = files.classify { |f| File.mtime(f\).year })
+  comment(#   p hash    # => {2000=>#<Set: {"a.rb", "b.rb"}>,)
+  comment(#             #     2001=>#<Set: {"c.rb", "d.rb", "e.rb"}>,)
+  comment(#             #     2002=>#<Set: {"f.rb"}>})
+  reserved(def) method(classify) comment(# :yields: o)
+    ident(h) operator(=) operator({)operator(})
+
+    ident(each) operator({) operator(|)ident(i)operator(|)
+      ident(x) operator(=) reserved(yield)operator(()ident(i)operator(\))
+      operator(()ident(h)operator([)ident(x)operator(]) operator(||=) pre_constant(self)operator(.)ident(class)operator(.)ident(new)operator(\))operator(.)ident(add)operator(()ident(i)operator(\))
+    operator(})
+
+    ident(h)
+  reserved(end)
+
+  comment(# Divides the set into a set of subsets according to the commonality)
+  comment(# defined by the given block.)
+  comment(#)
+  comment(# If the arity of the block is 2, elements o1 and o2 are in common)
+  comment(# if block.call(o1, o2\) is true.  Otherwise, elements o1 and o2 are)
+  comment(# in common if block.call(o1\) == block.call(o2\).)
+  comment(#)
+  comment(# e.g.:)
+  comment(#)
+  comment(#   require 'set')
+  comment(#   numbers = Set[1, 3, 4, 6, 9, 10, 11])
+  comment(#   set = numbers.divide { |i,j| (i - j\).abs == 1 })
+  comment(#   p set     # => #<Set: {#<Set: {1}>,)
+  comment(#             #            #<Set: {11, 9, 10}>,)
+  comment(#             #            #<Set: {3, 4}>,)
+  comment(#             #            #<Set: {6}>}>)
+  reserved(def) method(divide)operator(()operator(&)ident(func)operator(\))
+    reserved(if) ident(func)operator(.)ident(arity) operator(==) integer(2)
+      ident(require) string<delimiter(')content(tsort)delimiter(')>
+
+      reserved(class) operator(<<) class(dig) operator(=) operator({)operator(})		comment(# :nodoc:)
+	ident(include) constant(TSort)
+
+	reserved(alias) ident(tsort_each_node) ident(each_key)
+	reserved(def) method(tsort_each_child)operator(()ident(node)operator(,) operator(&)ident(block)operator(\))
+	  ident(fetch)operator(()ident(node)operator(\))operator(.)ident(each)operator(()operator(&)ident(block)operator(\))
+	reserved(end)
+      reserved(end)
+
+      ident(each) operator({) operator(|)ident(u)operator(|)
+	ident(dig)operator([)ident(u)operator(]) operator(=) ident(a) operator(=) operator([)operator(])
+	ident(each)operator({) operator(|)ident(v)operator(|) ident(func)operator(.)ident(call)operator(()ident(u)operator(,) ident(v)operator(\)) reserved(and) ident(a) operator(<<) ident(v) operator(})
+      operator(})
+
+      ident(set) operator(=) constant(Set)operator(.)ident(new)operator(()operator(\))
+      ident(dig)operator(.)ident(each_strongly_connected_component) operator({) operator(|)ident(css)operator(|)
+	ident(set)operator(.)ident(add)operator(()pre_constant(self)operator(.)ident(class)operator(.)ident(new)operator(()ident(css)operator(\))operator(\))
+      operator(})
+      ident(set)
+    reserved(else)
+      constant(Set)operator(.)ident(new)operator(()ident(classify)operator(()operator(&)ident(func)operator(\))operator(.)ident(values)operator(\))
+    reserved(end)
+  reserved(end)
+
+  constant(InspectKey) operator(=) symbol(:__inspect_key__)         comment(# :nodoc:)
+
+  comment(# Returns a string containing a human-readable representation of the)
+  comment(# set. ("#<Set: {element1, element2, ...}>"\))
+  reserved(def) method(inspect)
+    ident(ids) operator(=) operator(()constant(Thread)operator(.)ident(current)operator([)constant(InspectKey)operator(]) operator(||=) operator([)operator(])operator(\))
+
+    reserved(if) ident(ids)operator(.)ident(include?)operator(()ident(object_id)operator(\))
+      reserved(return) ident(sprintf)operator(()string<delimiter(')content(#<%s: {...}>)delimiter(')>operator(,) pre_constant(self)operator(.)ident(class)operator(.)ident(name)operator(\))
+    reserved(end)
+
+    reserved(begin)
+      ident(ids) operator(<<) ident(object_id)
+      reserved(return) ident(sprintf)operator(()string<delimiter(')content(#<%s: {%s}>)delimiter(')>operator(,) pre_constant(self)operator(.)ident(class)operator(,) ident(to_a)operator(.)ident(inspect)operator([)integer(1)operator(..)integer(-2)operator(])operator(\))
+    reserved(ensure)
+      ident(ids)operator(.)ident(pop)
+    reserved(end)
+  reserved(end)
+
+  reserved(def) method(pretty_print)operator(()ident(pp)operator(\))	comment(# :nodoc:)
+    ident(pp)operator(.)ident(text) ident(sprintf)operator(()string<delimiter(')content(#<%s: {)delimiter(')>operator(,) pre_constant(self)operator(.)ident(class)operator(.)ident(name)operator(\))
+    ident(pp)operator(.)ident(nest)operator(()integer(1)operator(\)) operator({)
+      ident(pp)operator(.)ident(seplist)operator(()pre_constant(self)operator(\)) operator({) operator(|)ident(o)operator(|)
+	ident(pp)operator(.)ident(pp) ident(o)
+      operator(})
+    operator(})
+    ident(pp)operator(.)ident(text) string<delimiter(")content(}>)delimiter(")>
+  reserved(end)
+
+  reserved(def) method(pretty_print_cycle)operator(()ident(pp)operator(\))	comment(# :nodoc:)
+    ident(pp)operator(.)ident(text) ident(sprintf)operator(()string<delimiter(')content(#<%s: {%s}>)delimiter(')>operator(,) pre_constant(self)operator(.)ident(class)operator(.)ident(name)operator(,) ident(empty?) operator(?) string<delimiter(')delimiter(')> operator(:) string<delimiter(')content(...)delimiter(')>operator(\))
+  reserved(end)
+reserved(end)
+
+comment(# SortedSet implements a set which elements are sorted in order.  See Set.)
+reserved(class) class(SortedSet) operator(<) constant(Set)
+  class_variable(@@setup) operator(=) pre_constant(false)
+
+  reserved(class) operator(<<) class(self)
+    reserved(def) method([])operator(()operator(*)ident(ary)operator(\))	comment(# :nodoc:)
+      ident(new)operator(()ident(ary)operator(\))
+    reserved(end)
+
+    reserved(def) method(setup)	comment(# :nodoc:)
+      class_variable(@@setup) reserved(and) reserved(return)
+
+      reserved(begin)
+	ident(require) string<delimiter(')content(rbtree)delimiter(')>
+
+	ident(module_eval) string<delimiter(%{)content(
+	  def initialize(*args, &block\)
+	    @hash = RBTree.new
+	    super
+	  end
+	)delimiter(})>
+      reserved(rescue) constant(LoadError)
+	ident(module_eval) string<delimiter(%{)content(
+	  def initialize(*args, &block\)
+	    @keys = nil
+	    super
+	  end
+
+	  def clear
+	    @keys = nil
+	    super
+	  end
+
+	  def replace(enum\)
+	    @keys = nil
+	    super
+	  end
+
+	  def add(o\)
+	    @keys = nil
+	    @hash[o] = true
+	    self
+	  end
+	  alias << add
+
+	  def delete(o\)
+	    @keys = nil
+	    @hash.delete(o\)
+	    self
+	  end
+
+	  def delete_if
+	    n = @hash.size
+	    @hash.delete_if )nesting_delimiter({)content( |o,| yield(o\) )nesting_delimiter(})content(
+	    @keys = nil if @hash.size != n
+	    self
+	  end
+
+	  def merge(enum\)
+	    @keys = nil
+	    super
+	  end
+
+	  def each
+	    to_a.each )nesting_delimiter({)content( |o| yield(o\) )nesting_delimiter(})content(
+	  end
+
+	  def to_a
+	    (@keys = @hash.keys\).sort! unless @keys
+	    @keys
+	  end
+	)delimiter(})>
+      reserved(end)
+
+      class_variable(@@setup) operator(=) pre_constant(true)
+    reserved(end)
+  reserved(end)
+
+  reserved(def) method(initialize)operator(()operator(*)ident(args)operator(,) operator(&)ident(block)operator(\))	comment(# :nodoc:)
+    constant(SortedSet)operator(.)ident(setup)
+    ident(initialize)operator(()operator(*)ident(args)operator(,) operator(&)ident(block)operator(\))
+  reserved(end)
+reserved(end)
+
+reserved(module) class(Enumerable)
+  comment(# Makes a set from the enumerable object with given arguments.)
+  reserved(def) method(to_set)operator(()ident(klass) operator(=) constant(Set)operator(,) operator(*)ident(args)operator(,) operator(&)ident(block)operator(\))
+    ident(klass)operator(.)ident(new)operator(()pre_constant(self)operator(,) operator(*)ident(args)operator(,) operator(&)ident(block)operator(\))
+  reserved(end)
+reserved(end)
+
+comment(# =begin)
+comment(# == RestricedSet class)
+comment(# RestricedSet implements a set with restrictions defined by a given)
+comment(# block.)
+comment(#)
+comment(# === Super class)
+comment(#     Set)
+comment(#)
+comment(# === Class Methods)
+comment(# --- RestricedSet::new(enum = nil\) { |o| ... })
+comment(# --- RestricedSet::new(enum = nil\) { |rset, o| ... })
+comment(#     Creates a new restricted set containing the elements of the given)
+comment(#     enumerable object.  Restrictions are defined by the given block.)
+comment(#)
+comment(#     If the block's arity is 2, it is called with the RestrictedSet)
+comment(#     itself and an object to see if the object is allowed to be put in)
+comment(#     the set.)
+comment(#)
+comment(#     Otherwise, the block is called with an object to see if the object)
+comment(#     is allowed to be put in the set.)
+comment(#)
+comment(# === Instance Methods)
+comment(# --- restriction_proc)
+comment(#     Returns the restriction procedure of the set.)
+comment(#)
+comment(# =end)
+comment(#)
+comment(# class RestricedSet < Set)
+comment(#   def initialize(*args, &block\))
+comment(#     @proc = block or raise ArgumentError, "missing a block")
+comment(#)
+comment(#     if @proc.arity == 2)
+comment(#       instance_eval %{)
+comment(# 	def add(o\))
+comment(# 	  @hash[o] = true if @proc.call(self, o\))
+comment(# 	  self)
+comment(# 	end)
+comment(# 	alias << add)
+comment(#)
+comment(# 	def add?(o\))
+comment(# 	  if include?(o\) || !@proc.call(self, o\))
+comment(# 	    nil)
+comment(# 	  else)
+comment(# 	    @hash[o] = true)
+comment(# 	    self)
+comment(# 	  end)
+comment(# 	end)
+comment(#)
+comment(# 	def replace(enum\))
+comment(# 	  enum.is_a?(Enumerable\) or raise ArgumentError, "value must be enumerable")
+comment(# 	  clear)
+comment(# 	  enum.each { |o| add(o\) })
+comment(#)
+comment(# 	  self)
+comment(# 	end)
+comment(#)
+comment(# 	def merge(enum\))
+comment(# 	  enum.is_a?(Enumerable\) or raise ArgumentError, "value must be enumerable")
+comment(# 	  enum.each { |o| add(o\) })
+comment(#)
+comment(# 	  self)
+comment(# 	end)
+comment(#       })
+comment(#     else)
+comment(#       instance_eval %{)
+comment(# 	def add(o\))
+comment(#         if @proc.call(o\))
+comment(# 	    @hash[o] = true)
+comment(#         end)
+comment(# 	  self)
+comment(# 	end)
+comment(# 	alias << add)
+comment(#)
+comment(# 	def add?(o\))
+comment(# 	  if include?(o\) || !@proc.call(o\))
+comment(# 	    nil)
+comment(# 	  else)
+comment(# 	    @hash[o] = true)
+comment(# 	    self)
+comment(# 	  end)
+comment(# 	end)
+comment(#       })
+comment(#     end)
+comment(#)
+comment(#     super(*args\))
+comment(#   end)
+comment(#)
+comment(#   def restriction_proc)
+comment(#     @proc)
+comment(#   end)
+comment(# end)
+
+reserved(if) global_variable($0) operator(==) pre_constant(__FILE__)
+  ident(eval) pre_constant(DATA)operator(.)ident(read)operator(,) pre_constant(nil)operator(,) global_variable($0)operator(,) pre_constant(__LINE__)integer(+4)
+reserved(end)
+
+comment(# = rweb - CGI Support Library)
+comment(#)
+comment(# Author:: Johannes Barre (mailto:rweb@igels.net\))
+comment(# Copyright:: Copyright (c\) 2003, 04 by Johannes Barre)
+comment(# License:: GNU Lesser General Public License (COPYING, http://www.gnu.org/copyleft/lesser.html\))
+comment(# Version:: 0.1.0)
+comment(# CVS-ID:: $Id: rweb.rb 6 2004-06-16 15:56:26Z igel $)
+comment(#)
+comment(# == What is Rweb?)
+comment(# Rweb is a replacement for the cgi class included in the ruby distribution.)
+comment(#)
+comment(# == How to use)
+comment(#)
+comment(# === Basics)
+comment(#)
+comment(# This class is made to be as easy as possible to use. An example:)
+comment(#)
+comment(# 	require "rweb")
+comment(#)
+comment(# 	web = Rweb.new)
+comment(# 	web.out do)
+comment(# 		web.puts "Hello world!")
+comment(# 	end)
+comment(#)
+comment(# The visitor will get a simple "Hello World!" in his browser. Please notice,)
+comment(# that won't set html-tags for you, so you should better do something like this:)
+comment(#)
+comment(# 	require "rweb")
+comment(#)
+comment(# 	web = Rweb.new)
+comment(# 	web.out do)
+comment(# 		web.puts "<html><body>Hello world!</body></html>")
+comment(# 	end)
+comment(#)
+comment(# === Set headers)
+comment(# Of course, it's also possible to tell the browser, that the content of this)
+comment(# page is plain text instead of html code:)
+comment(#)
+comment(# 	require "rweb")
+comment(#)
+comment(# 	web = Rweb.new)
+comment(# 	web.out do)
+comment(# 		web.header("content-type: text/plain"\))
+comment(# 		web.puts "Hello plain world!")
+comment(# 	end)
+comment(#)
+comment(# Please remember, headers can't be set after the page content has been send.)
+comment(# You have to set all nessessary headers before the first puts oder print. It's)
+comment(# possible to cache the content until everything is complete. Doing it this)
+comment(# way, you can set headers everywhere.)
+comment(#)
+comment(# If you set a header twice, the second header will replace the first one. The)
+comment(# header name is not casesensitive, it will allways converted in to the)
+comment(# capitalised form suggested by the w3c (http://w3.org\))
+comment(#)
+comment(# === Set cookies)
+comment(# Setting cookies is quite easy:)
+comment(# 	include 'rweb')
+comment(#)
+comment(# 	web = Rweb.new)
+comment(# 	Cookie.new("Visits", web.cookies['visits'].to_i +1\))
+comment(# 	web.out do)
+comment(# 		web.puts "Welcome back! You visited this page #{web.cookies['visits'].to_i +1} times")
+comment(# 	end)
+comment(#)
+comment(# See the class Cookie for more details.)
+comment(#)
+comment(# === Get form and cookie values)
+comment(# There are four ways to submit data from the browser to the server and your)
+comment(# ruby script: via GET, POST, cookies and file upload. Rweb doesn't support)
+comment(# file upload by now.)
+comment(#)
+comment(# 	include 'rweb')
+comment(#)
+comment(# 	web = Rweb.new)
+comment(# 	web.out do)
+comment(# 		web.print "action: #{web.get['action']} ")
+comment(# 		web.puts "The value of the cookie 'visits' is #{web.cookies['visits']}")
+comment(# 		web.puts "The post parameter 'test['x']' is #{web.post['test']['x']}")
+comment(# 	end)
+
+constant(RWEB_VERSION) operator(=) string<delimiter(")content(0.1.0)delimiter(")>
+constant(RWEB) operator(=) string<delimiter(")content(rweb/)inline<delimiter(#{)constant(RWEB_VERSION)delimiter(})>delimiter(")>
+
+comment(#require 'rwebcookie' -> edit by bunny :-\))
+
+reserved(class) class(Rweb)
+    comment(# All parameter submitted via the GET method are available in attribute)
+		comment(# get. This is Hash, where every parameter is available as a key-value)
+		comment(# pair.)
+		comment(#)
+		comment(# If your input tag has a name like this one, it's value will be available)
+		comment(# as web.get["fieldname"])
+		comment(#  <input name="fieldname">)
+		comment(# You can submit values as a Hash)
+		comment(#  <input name="text['index']">)
+		comment(#  <input name="text['index2']">)
+		comment(# will be available as)
+		comment(#  web.get["text"]["index"])
+		comment(#  web.get["text"]["index2"])
+		comment(# Integers are also possible)
+		comment(#  <input name="int[2]">)
+		comment(#  <input name="int[3]['hi']>)
+		comment(# will be available as)
+		comment(#  web.get["int"][2])
+		comment(#  web.get["int"][3]["hi"])
+		comment(# If you specify no index, the lowest unused index will be used:)
+		comment(#  <input name="int[]"><!-- First Field -->)
+		comment(#  <input name="int[]"><!-- Second one -->)
+		comment(# will be available as)
+		comment(#  web.get["int"][0] # First Field)
+		comment(#  web.get["int"][1] # Second one)
+		comment(# Please notice, this doesn'd work like you might expect:)
+		comment(#  <input name="text[index]">)
+		comment(# It will not be available as web.get["text"]["index"] but)
+		comment(#  web.get["text[index]"])
+    ident(attr_reader) symbol(:get)
+
+    comment(# All parameters submitted via POST are available in the attribute post. It)
+		comment(# works like the get attribute.)
+		comment(#  <input name="text[0]">)
+		comment(# will be available as)
+		comment(#  web.post["text"][0])
+		ident(attr_reader) symbol(:post)
+
+    comment(# All cookies submitted by the browser are available in cookies. This is a)
+		comment(# Hash, where every cookie is a key-value pair.)
+		ident(attr_reader) symbol(:cookies)
+
+    comment(# The name of the browser identification is submitted as USER_AGENT and)
+		comment(# available in this attribute.)
+		ident(attr_reader) symbol(:user_agent)
+
+    comment(# The IP address of the client.)
+		ident(attr_reader) symbol(:remote_addr)
+
+    comment(# Creates a new Rweb object. This should only done once. You can set various)
+    comment(# options via the settings hash.)
+    comment(#)
+    comment(# "cache" => true: Everything you script send to the client will be cached)
+    comment(# until the end of the out block or until flush is called. This way, you)
+    comment(# can modify headers and cookies even after printing something to the client.)
+    comment(#)
+    comment(# "safe" => level: Changes the $SAFE attribute. By default, $SAFE will be set)
+    comment(# to 1. If $SAFE is already higher than this value, it won't be changed.)
+    comment(#)
+    comment(# "silend" => true: Normaly, Rweb adds automaticly a header like this)
+    comment(# "X-Powered-By: Rweb/x.x.x (Ruby/y.y.y\)". With the silend option you can)
+    comment(# suppress this.)
+    reserved(def) method(initialize) operator(()ident(settings) operator(=) operator({)operator(})operator(\))
+        comment(# {{{)
+        instance_variable(@header) operator(=) operator({)operator(})
+        instance_variable(@cookies) operator(=) operator({)operator(})
+        instance_variable(@get) operator(=) operator({)operator(})
+        instance_variable(@post) operator(=) operator({)operator(})
+
+        comment(# Internal attributes)
+        instance_variable(@status) operator(=) pre_constant(nil)
+        instance_variable(@reasonPhrase) operator(=) pre_constant(nil)
+        instance_variable(@setcookies) operator(=) operator([)operator(])
+        instance_variable(@output_started) operator(=) pre_constant(false)operator(;)
+        instance_variable(@output_allowed) operator(=) pre_constant(false)operator(;)
+
+        instance_variable(@mod_ruby) operator(=) pre_constant(false)
+        instance_variable(@env) operator(=) constant(ENV)operator(.)ident(to_hash)
+
+        reserved(if) reserved(defined?)operator(()constant(MOD_RUBY)operator(\))
+            instance_variable(@output_method) operator(=) string<delimiter(")content(mod_ruby)delimiter(")>
+            instance_variable(@mod_ruby) operator(=) pre_constant(true)
+        reserved(elsif) instance_variable(@env)operator([)string<delimiter(')content(SERVER_SOFTWARE)delimiter(')>operator(]) operator(=)operator(~) regexp<delimiter(/)content(^Microsoft-IIS)delimiter(/)modifier(i)>
+            instance_variable(@output_method) operator(=) string<delimiter(")content(nph)delimiter(")>
+        reserved(else)
+            instance_variable(@output_method) operator(=) string<delimiter(")content(ph)delimiter(")>
+        reserved(end)
+
+        reserved(unless) ident(settings)operator(.)ident(is_a?)operator(()constant(Hash)operator(\))
+            ident(raise) constant(TypeError)operator(,) string<delimiter(")content(settings must be a Hash)delimiter(")>
+        reserved(end)
+        instance_variable(@settings) operator(=) ident(settings)
+
+        reserved(unless) instance_variable(@settings)operator(.)ident(has_key?)operator(()string<delimiter(")content(safe)delimiter(")>operator(\))
+            instance_variable(@settings)operator([)string<delimiter(")content(safe)delimiter(")>operator(]) operator(=) integer(1)
+        reserved(end)
+
+        reserved(if) global_variable($SAFE) operator(<) instance_variable(@settings)operator([)string<delimiter(")content(safe)delimiter(")>operator(])
+            global_variable($SAFE) operator(=) instance_variable(@settings)operator([)string<delimiter(")content(safe)delimiter(")>operator(])
+        reserved(end)
+
+        reserved(unless) instance_variable(@settings)operator(.)ident(has_key?)operator(()string<delimiter(")content(cache)delimiter(")>operator(\))
+            instance_variable(@settings)operator([)string<delimiter(")content(cache)delimiter(")>operator(]) operator(=) pre_constant(false)
+        reserved(end)
+
+        comment(# mod_ruby sets no QUERY_STRING variable, if no GET-Parameters are given)
+        reserved(unless) instance_variable(@env)operator(.)ident(has_key?)operator(()string<delimiter(")content(QUERY_STRING)delimiter(")>operator(\))
+            instance_variable(@env)operator([)string<delimiter(")content(QUERY_STRING)delimiter(")>operator(]) operator(=) string<delimiter(")delimiter(")>
+        reserved(end)
+
+        comment(# Now we split the QUERY_STRING by the seperators & and ; or, if)
+        comment(# specified, settings['get seperator'])
+        reserved(unless) instance_variable(@settings)operator(.)ident(has_key?)operator(()string<delimiter(")content(get seperator)delimiter(")>operator(\))
+            ident(get_args) operator(=) instance_variable(@env)operator([)string<delimiter(')content(QUERY_STRING)delimiter(')>operator(])operator(.)ident(split)operator(()regexp<delimiter(/)content([&;])delimiter(/)>operator(\))
+        reserved(else)
+            ident(get_args) operator(=) instance_variable(@env)operator([)string<delimiter(')content(QUERY_STRING)delimiter(')>operator(])operator(.)ident(split)operator(()instance_variable(@settings)operator([)string<delimiter(')content(get seperator)delimiter(')>operator(])operator(\))
+        reserved(end)
+
+        ident(get_args)operator(.)ident(each) reserved(do) operator(|) ident(arg) operator(|)
+            ident(arg_key)operator(,) ident(arg_val) operator(=) ident(arg)operator(.)ident(split)operator(()regexp<delimiter(/)content(=)delimiter(/)>operator(,) integer(2)operator(\))
+            ident(arg_key) operator(=) constant(Rweb)operator(::)ident(unescape)operator(()ident(arg_key)operator(\))
+            ident(arg_val) operator(=) constant(Rweb)operator(::)ident(unescape)operator(()ident(arg_val)operator(\))
+
+            comment(# Parse names like name[0], name['text'] or name[])
+            ident(pattern) operator(=) regexp<delimiter(/)content(^(.+\))char(\\[)content(("[^)char(\\])content(]*"|'[^)char(\\])content(]*'|[0-9]*\))char(\\])content($)delimiter(/)>
+            ident(keys) operator(=) operator([)operator(])
+            reserved(while) ident(match) operator(=) ident(pattern)operator(.)ident(match)operator(()ident(arg_key)operator(\))
+                ident(arg_key) operator(=) ident(match)operator([)integer(1)operator(])
+                ident(keys) operator(=) operator([)ident(match)operator([)integer(2)operator(])operator(]) operator(+) ident(keys)
+            reserved(end)
+            ident(keys) operator(=) operator([)ident(arg_key)operator(]) operator(+) ident(keys)
+
+            ident(akt) operator(=) instance_variable(@get)
+            ident(last) operator(=) pre_constant(nil)
+            ident(lastkey) operator(=) pre_constant(nil)
+            ident(keys)operator(.)ident(each) reserved(do) operator(|)ident(key)operator(|)
+                reserved(if) ident(key) operator(==) string<delimiter(")delimiter(")>
+                    comment(# No key specified (like in "test[]"\), so we use the)
+                    comment(# lowerst unused Integer as key)
+                    ident(key) operator(=) integer(0)
+                    reserved(while) ident(akt)operator(.)ident(has_key?)operator(()ident(key)operator(\))
+                        ident(key) operator(+=) integer(1)
+                    reserved(end)
+                reserved(elsif) regexp<delimiter(/)content(^[0-9]*$)delimiter(/)> operator(=)operator(~) ident(key)
+                    comment(# If the index is numerical convert it to an Integer)
+                    ident(key) operator(=) ident(key)operator(.)ident(to_i)
+                reserved(elsif) ident(key)operator([)integer(0)operator(])operator(.)ident(chr) operator(==) string<delimiter(")content(')delimiter(")> operator(||) ident(key)operator([)integer(0)operator(])operator(.)ident(chr) operator(==) string<delimiter(')content(")delimiter(')>
+                    ident(key) operator(=) ident(key)operator([)integer(1)operator(,) ident(key)operator(.)ident(length)operator(()operator(\)) integer(-2)operator(])
+                reserved(end)
+                reserved(if) operator(!)ident(akt)operator(.)ident(has_key?)operator(()ident(key)operator(\)) operator(||) operator(!)ident(akt)operator([)ident(key)operator(])operator(.)ident(class) operator(==) constant(Hash)
+                    comment(# create an empty Hash if there isn't already one)
+                    ident(akt)operator([)ident(key)operator(]) operator(=) operator({)operator(})
+                reserved(end)
+                ident(last) operator(=) ident(akt)
+                ident(lastkey) operator(=) ident(key)
+                ident(akt) operator(=) ident(akt)operator([)ident(key)operator(])
+            reserved(end)
+            ident(last)operator([)ident(lastkey)operator(]) operator(=) ident(arg_val)
+        reserved(end)
+
+        reserved(if) instance_variable(@env)operator([)string<delimiter(')content(REQUEST_METHOD)delimiter(')>operator(]) operator(==) string<delimiter(")content(POST)delimiter(")>
+            reserved(if) instance_variable(@env)operator(.)ident(has_key?)operator(()string<delimiter(")content(CONTENT_TYPE)delimiter(")>operator(\)) operator(&&) instance_variable(@env)operator([)string<delimiter(')content(CONTENT_TYPE)delimiter(')>operator(]) operator(==) string<delimiter(")content(application/x-www-form-urlencoded)delimiter(")> operator(&&) instance_variable(@env)operator(.)ident(has_key?)operator(()string<delimiter(')content(CONTENT_LENGTH)delimiter(')>operator(\))
+                reserved(unless) instance_variable(@settings)operator(.)ident(has_key?)operator(()string<delimiter(")content(post seperator)delimiter(")>operator(\))
+                    ident(post_args) operator(=) global_variable($stdin)operator(.)ident(read)operator(()instance_variable(@env)operator([)string<delimiter(')content(CONTENT_LENGTH)delimiter(')>operator(])operator(.)ident(to_i)operator(\))operator(.)ident(split)operator(()regexp<delimiter(/)content([&;])delimiter(/)>operator(\))
+                reserved(else)
+                    ident(post_args) operator(=) global_variable($stdin)operator(.)ident(read)operator(()instance_variable(@env)operator([)string<delimiter(')content(CONTENT_LENGTH)delimiter(')>operator(])operator(.)ident(to_i)operator(\))operator(.)ident(split)operator(()instance_variable(@settings)operator([)string<delimiter(')content(post seperator)delimiter(')>operator(])operator(\))
+                reserved(end)
+                ident(post_args)operator(.)ident(each) reserved(do) operator(|) ident(arg) operator(|)
+                    ident(arg_key)operator(,) ident(arg_val) operator(=) ident(arg)operator(.)ident(split)operator(()regexp<delimiter(/)content(=)delimiter(/)>operator(,) integer(2)operator(\))
+                    ident(arg_key) operator(=) constant(Rweb)operator(::)ident(unescape)operator(()ident(arg_key)operator(\))
+                    ident(arg_val) operator(=) constant(Rweb)operator(::)ident(unescape)operator(()ident(arg_val)operator(\))
+
+                    comment(# Parse names like name[0], name['text'] or name[])
+                    ident(pattern) operator(=) regexp<delimiter(/)content(^(.+\))char(\\[)content(("[^)char(\\])content(]*"|'[^)char(\\])content(]*'|[0-9]*\))char(\\])content($)delimiter(/)>
+                    ident(keys) operator(=) operator([)operator(])
+                    reserved(while) ident(match) operator(=) ident(pattern)operator(.)ident(match)operator(()ident(arg_key)operator(\))
+                        ident(arg_key) operator(=) ident(match)operator([)integer(1)operator(])
+                        ident(keys) operator(=) operator([)ident(match)operator([)integer(2)operator(])operator(]) operator(+) ident(keys)
+                    reserved(end)
+                    ident(keys) operator(=) operator([)ident(arg_key)operator(]) operator(+) ident(keys)
+
+                    ident(akt) operator(=) instance_variable(@post)
+                    ident(last) operator(=) pre_constant(nil)
+                    ident(lastkey) operator(=) pre_constant(nil)
+                    ident(keys)operator(.)ident(each) reserved(do) operator(|)ident(key)operator(|)
+                        reserved(if) ident(key) operator(==) string<delimiter(")delimiter(")>
+                            comment(# No key specified (like in "test[]"\), so we use)
+                            comment(# the lowerst unused Integer as key)
+                            ident(key) operator(=) integer(0)
+                            reserved(while) ident(akt)operator(.)ident(has_key?)operator(()ident(key)operator(\))
+                                ident(key) operator(+=) integer(1)
+                            reserved(end)
+                        reserved(elsif) regexp<delimiter(/)content(^[0-9]*$)delimiter(/)> operator(=)operator(~) ident(key)
+                            comment(# If the index is numerical convert it to an Integer)
+                            ident(key) operator(=) ident(key)operator(.)ident(to_i)
+                        reserved(elsif) ident(key)operator([)integer(0)operator(])operator(.)ident(chr) operator(==) string<delimiter(")content(')delimiter(")> operator(||) ident(key)operator([)integer(0)operator(])operator(.)ident(chr) operator(==) string<delimiter(')content(")delimiter(')>
+                            ident(key) operator(=) ident(key)operator([)integer(1)operator(,) ident(key)operator(.)ident(length)operator(()operator(\)) integer(-2)operator(])
+                        reserved(end)
+                        reserved(if) operator(!)ident(akt)operator(.)ident(has_key?)operator(()ident(key)operator(\)) operator(||) operator(!)ident(akt)operator([)ident(key)operator(])operator(.)ident(class) operator(==) constant(Hash)
+                            comment(# create an empty Hash if there isn't already one)
+                            ident(akt)operator([)ident(key)operator(]) operator(=) operator({)operator(})
+                        reserved(end)
+                        ident(last) operator(=) ident(akt)
+                        ident(lastkey) operator(=) ident(key)
+                        ident(akt) operator(=) ident(akt)operator([)ident(key)operator(])
+                    reserved(end)
+                    ident(last)operator([)ident(lastkey)operator(]) operator(=) ident(arg_val)
+                reserved(end)
+            reserved(else)
+                comment(# Maybe we should print a warning here?)
+                global_variable($stderr)operator(.)ident(print)operator(()string<delimiter(")content(Unidentified form data recived and discarded.)delimiter(")>operator(\))
+            reserved(end)
+        reserved(end)
+
+        reserved(if) instance_variable(@env)operator(.)ident(has_key?)operator(()string<delimiter(")content(HTTP_COOKIE)delimiter(")>operator(\))
+            ident(cookie) operator(=) instance_variable(@env)operator([)string<delimiter(')content(HTTP_COOKIE)delimiter(')>operator(])operator(.)ident(split)operator(()regexp<delimiter(/)content(; ?)delimiter(/)>operator(\))
+            ident(cookie)operator(.)ident(each) reserved(do) operator(|) ident(c) operator(|)
+                ident(cookie_key)operator(,) ident(cookie_val) operator(=) ident(c)operator(.)ident(split)operator(()regexp<delimiter(/)content(=)delimiter(/)>operator(,) integer(2)operator(\))
+
+                instance_variable(@cookies) operator([)constant(Rweb)operator(::)ident(unescape)operator(()ident(cookie_key)operator(\))operator(]) operator(=) constant(Rweb)operator(::)ident(unescape)operator(()ident(cookie_val)operator(\))
+            reserved(end)
+        reserved(end)
+
+        reserved(if) reserved(defined?)operator(()instance_variable(@env)operator([)string<delimiter(')content(HTTP_USER_AGENT)delimiter(')>operator(])operator(\))
+            instance_variable(@user_agent) operator(=) instance_variable(@env)operator([)string<delimiter(')content(HTTP_USER_AGENT)delimiter(')>operator(])
+        reserved(else)
+            instance_variable(@user_agent) operator(=) pre_constant(nil)operator(;)
+        reserved(end)
+
+        reserved(if) reserved(defined?)operator(()instance_variable(@env)operator([)string<delimiter(')content(REMOTE_ADDR)delimiter(')>operator(])operator(\))
+            instance_variable(@remote_addr) operator(=) instance_variable(@env)operator([)string<delimiter(')content(REMOTE_ADDR)delimiter(')>operator(])
+        reserved(else)
+            instance_variable(@remote_addr) operator(=) pre_constant(nil)
+        reserved(end)
+        comment(# }}})
+    reserved(end)
+
+    comment(# Prints a String to the client. If caching is enabled, the String will)
+    comment(# buffered until the end of the out block ends.)
+    reserved(def) method(print)operator(()ident(str) operator(=) string<delimiter(")delimiter(")>operator(\))
+        comment(# {{{)
+        reserved(unless) instance_variable(@output_allowed)
+            ident(raise) string<delimiter(")content(You just can write to output inside of a Rweb::out-block)delimiter(")>
+        reserved(end)
+
+        reserved(if) instance_variable(@settings)operator([)string<delimiter(")content(cache)delimiter(")>operator(])
+            instance_variable(@buffer) operator(+=) operator([)ident(str)operator(.)ident(to_s)operator(])
+        reserved(else)
+            reserved(unless) instance_variable(@output_started)
+                ident(sendHeaders)
+            reserved(end)
+            global_variable($stdout)operator(.)ident(print)operator(()ident(str)operator(\))
+        reserved(end)
+        pre_constant(nil)
+        comment(# }}})
+    reserved(end)
+
+    comment(# Prints a String to the client and adds a line break at the end. Please)
+		comment(# remember, that a line break is not visible in HTML, use the <br> HTML-Tag)
+		comment(# for this. If caching is enabled, the String will buffered until the end)
+		comment(# of the out block ends.)
+    reserved(def) method(puts)operator(()ident(str) operator(=) string<delimiter(")delimiter(")>operator(\))
+        comment(# {{{)
+        pre_constant(self)operator(.)ident(print)operator(()ident(str) operator(+) string<delimiter(")char(\\n)delimiter(")>operator(\))
+        comment(# }}})
+    reserved(end)
+
+		comment(# Alias to print.)
+    reserved(def) method(write)operator(()ident(str) operator(=) string<delimiter(")delimiter(")>operator(\))
+        comment(# {{{)
+        pre_constant(self)operator(.)ident(print)operator(()ident(str)operator(\))
+        comment(# }}})
+    reserved(end)
+
+    comment(# If caching is enabled, all cached data are send to the cliend and the)
+		comment(# cache emptied.)
+    reserved(def) method(flush)
+        comment(# {{{)
+        reserved(unless) instance_variable(@output_allowed)
+            ident(raise) string<delimiter(")content(You can't use flush outside of a Rweb::out-block)delimiter(")>
+        reserved(end)
+        ident(buffer) operator(=) instance_variable(@buffer)operator(.)ident(join)
+
+        reserved(unless) instance_variable(@output_started)
+            ident(sendHeaders)
+        reserved(end)
+        global_variable($stdout)operator(.)ident(print)operator(()ident(buffer)operator(\))
+
+        instance_variable(@buffer) operator(=) operator([)operator(])
+        comment(# }}})
+    reserved(end)
+
+    comment(# Sends one or more header to the client. All headers are cached just)
+		comment(# before body data are send to the client. If the same header are set)
+		comment(# twice, only the last value is send.)
+		comment(#)
+		comment(# Example:)
+		comment(#  web.header("Last-Modified: Mon, 16 Feb 2004 20:15:41 GMT"\))
+		comment(#  web.header("Location: http://www.ruby-lang.org"\))
+		comment(#)
+		comment(# You can specify more than one header at the time by doing something like)
+		comment(# this:)
+		comment(#  web.header("Content-Type: text/plain\\nContent-Length: 383"\))
+		comment(# or)
+		comment(#  web.header(["Content-Type: text/plain", "Content-Length: 383"]\))
+    reserved(def) method(header)operator(()ident(str)operator(\))
+        comment(# {{{)
+        reserved(if) instance_variable(@output_started)
+            ident(raise) string<delimiter(")content(HTTP-Headers are already send. You can't change them after output has started!)delimiter(")>
+        reserved(end)
+        reserved(unless) instance_variable(@output_allowed)
+            ident(raise) string<delimiter(")content(You just can set headers inside of a Rweb::out-block)delimiter(")>
+        reserved(end)
+        reserved(if) ident(str)operator(.)ident(is_a?)constant(Array)
+            ident(str)operator(.)ident(each) reserved(do) operator(|) ident(value) operator(|)
+                pre_constant(self)operator(.)ident(header)operator(()ident(value)operator(\))
+            reserved(end)
+
+        reserved(elsif) ident(str)operator(.)ident(split)operator(()regexp<delimiter(/)char(\\n)delimiter(/)>operator(\))operator(.)ident(length) operator(>) integer(1)
+            ident(str)operator(.)ident(split)operator(()regexp<delimiter(/)char(\\n)delimiter(/)>operator(\))operator(.)ident(each) reserved(do) operator(|) ident(value) operator(|)
+                pre_constant(self)operator(.)ident(header)operator(()ident(value)operator(\))
+            reserved(end)
+
+        reserved(elsif) ident(str)operator(.)ident(is_a?) constant(String)
+            ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\r)delimiter(/)>operator(,) string<delimiter(")delimiter(")>operator(\))
+
+            reserved(if) operator(()ident(str) operator(=)operator(~) regexp<delimiter(/)content(^HTTP)char(\\/)content(1)char(\\.)content([01] [0-9]{3} ?.*$)delimiter(/)>operator(\)) operator(==) integer(0)
+                ident(pattern) operator(=) regexp<delimiter(/)content(^HTTP)char(\\/)content(1.[01] ([0-9]{3}\) ?(.*\)$)delimiter(/)>
+
+                ident(result) operator(=) ident(pattern)operator(.)ident(match)operator(()ident(str)operator(\))
+                pre_constant(self)operator(.)ident(setstatus)operator(()ident(result)operator([)integer(0)operator(])operator(,) ident(result)operator([)integer(1)operator(])operator(\))
+            reserved(elsif) operator(()ident(str) operator(=)operator(~) regexp<delimiter(/)content(^status: [0-9]{3} ?.*$)delimiter(/)modifier(i)>operator(\)) operator(==) integer(0)
+                ident(pattern) operator(=) regexp<delimiter(/)content(^status: ([0-9]{3}\) ?(.*\)$)delimiter(/)modifier(i)>
+
+                ident(result) operator(=) ident(pattern)operator(.)ident(match)operator(()ident(str)operator(\))
+                pre_constant(self)operator(.)ident(setstatus)operator(()ident(result)operator([)integer(0)operator(])operator(,) ident(result)operator([)integer(1)operator(])operator(\))
+            reserved(else)
+                ident(a) operator(=) ident(str)operator(.)ident(split)operator(()regexp<delimiter(/)content(: ?)delimiter(/)>operator(,) integer(2)operator(\))
+
+                instance_variable(@header)operator([)ident(a)operator([)integer(0)operator(])operator(.)ident(downcase)operator(]) operator(=) ident(a)operator([)integer(1)operator(])
+            reserved(end)
+        reserved(end)
+        comment(# }}})
+    reserved(end)
+
+    comment(# Changes the status of this page. There are several codes like "200 OK",)
+		comment(# "302 Found", "404 Not Found" or "500 Internal Server Error". A list of)
+		comment(# all codes is available at)
+		comment(# http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10)
+		comment(#)
+		comment(# You can just send the code number, the reason phrase will be added)
+		comment(# automaticly with the recommendations from the w3c if not specified. If)
+		comment(# you set the status twice or more, only the last status will be send.)
+		comment(# Examples:)
+		comment(#  web.status("401 Unauthorized"\))
+		comment(#  web.status("410 Sad but true, this lonely page is gone :("\))
+		comment(#  web.status(206\))
+		comment(#  web.status("400"\))
+		comment(#)
+		comment(# The default status is "200 OK". If a "Location" header is set, the)
+		comment(# default status is "302 Found".)
+    reserved(def) method(status)operator(()ident(str)operator(\))
+        comment(# {{{)
+        reserved(if) instance_variable(@output_started)
+            ident(raise) string<delimiter(")content(HTTP-Headers are already send. You can't change them after output has started!)delimiter(")>
+        reserved(end)
+        reserved(unless) instance_variable(@output_allowed)
+            ident(raise) string<delimiter(")content(You just can set headers inside of a Rweb::out-block)delimiter(")>
+        reserved(end)
+        reserved(if) ident(str)operator(.)ident(is_a?)constant(Integer)
+            instance_variable(@status) operator(=) ident(str)
+        reserved(elsif) ident(str)operator(.)ident(is_a?)constant(String)
+            ident(p1) operator(=) regexp<delimiter(/)content(^([0-9]{3}\) ?(.*\)$)delimiter(/)>
+            ident(p2) operator(=) regexp<delimiter(/)content(^HTTP)char(\\/)content(1)char(\\.)content([01] ([0-9]{3}\) ?(.*\)$)delimiter(/)>
+            ident(p3) operator(=) regexp<delimiter(/)content(^status: ([0-9]{3}\) ?(.*\)$)delimiter(/)modifier(i)>
+
+            reserved(if) operator(()ident(a) operator(=) ident(p1)operator(.)ident(match)operator(()ident(str)operator(\))operator(\)) operator(==) pre_constant(nil)
+                reserved(if) operator(()ident(a) operator(=) ident(p2)operator(.)ident(match)operator(()ident(str)operator(\))operator(\)) operator(==) pre_constant(nil)
+                    reserved(if) operator(()ident(a) operator(=) ident(p3)operator(.)ident(match)operator(()ident(str)operator(\))operator(\)) operator(==) pre_constant(nil)
+                        ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(Invalid argument)delimiter(")>operator(,) ident(caller)
+                    reserved(end)
+                reserved(end)
+            reserved(end)
+            instance_variable(@status) operator(=) ident(a)operator([)integer(1)operator(])operator(.)ident(to_i)
+            reserved(if) ident(a)operator([)integer(2)operator(]) operator(!=) string<delimiter(")delimiter(")>
+                instance_variable(@reasonPhrase) operator(=) ident(a)operator([)integer(2)operator(])
+            reserved(else)
+                instance_variable(@reasonPhrase) operator(=) ident(getReasonPhrase)operator(()instance_variable(@status)operator(\))
+            reserved(end)
+        reserved(else)
+            ident(raise) constant(ArgumentError)operator(,) string<delimiter(")content(Argument of setstatus must be integer or string)delimiter(")>operator(,) ident(caller)
+        reserved(end)
+        comment(# }}})
+    reserved(end)
+
+    comment(# Handles the output of your content and rescues all exceptions. Send all)
+		comment(# data in the block to this method. For example:)
+		comment(#  web.out do)
+		comment(#      web.header("Content-Type: text/plain"\))
+		comment(#      web.puts("Hello, plain world!"\))
+		comment(#  end)
+    reserved(def) method(out)
+        comment(# {{{)
+        instance_variable(@output_allowed) operator(=) pre_constant(true)
+        instance_variable(@buffer) operator(=) operator([)operator(])operator(;) comment(# We use an array as buffer, because it's more performant :\))
+
+        reserved(begin)
+            reserved(yield)
+        reserved(rescue) constant(Exception) operator(=)operator(>) ident(exception)
+            global_variable($stderr)operator(.)ident(puts) string<delimiter(")content(Ruby exception rescued ()inline<delimiter(#{)ident(exception)operator(.)ident(class)delimiter(})>content(\): )inline<delimiter(#{)ident(exception)operator(.)ident(message)delimiter(})>delimiter(")>
+            global_variable($stderr)operator(.)ident(puts) ident(exception)operator(.)ident(backtrace)operator(.)ident(join)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))
+
+            reserved(unless) instance_variable(@output_started)
+                pre_constant(self)operator(.)ident(setstatus)operator(()integer(500)operator(\))
+                instance_variable(@header) operator(=) operator({)operator(})
+            reserved(end)
+
+            reserved(unless) operator(()instance_variable(@settings)operator(.)ident(has_key?)operator(()string<delimiter(")content(hide errors)delimiter(")>operator(\)) reserved(and) instance_variable(@settings)operator([)string<delimiter(")content(hide errors)delimiter(")>operator(]) operator(==) pre_constant(true)operator(\))
+                reserved(unless) instance_variable(@output_started)
+                    pre_constant(self)operator(.)ident(header)operator(()string<delimiter(")content(Content-Type: text/html)delimiter(")>operator(\))
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<!DOCTYPE HTML PUBLIC )char(\\")content(-//W3C//DTD HTML 4.01 Strict//EN)char(\\")content( )char(\\")content(http://www.w3.org/TR/html4/strict.dtd)char(\\")content(>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<html>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<head>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<title>500 Internal Server Error</title>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(</head>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<body>)delimiter(")>
+                reserved(end)
+                reserved(if) instance_variable(@header)operator(.)ident(has_key?)operator(()string<delimiter(")content(content-type)delimiter(")>operator(\)) reserved(and) operator(()instance_variable(@header)operator([)string<delimiter(")content(content-type)delimiter(")>operator(]) operator(=)operator(~) regexp<delimiter(/)content(^text)char(\\/)content(html)delimiter(/)modifier(i)>operator(\)) operator(==) integer(0)
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<h1>Internal Server Error</h1>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<p>The server encountered an exception and was unable to complete your request.</p>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<p>The exception has provided the following information:</p>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(<pre style=)char(\\")content(background: #FFCCCC; border: black solid 2px; margin-left: 2cm; margin-right: 2cm; padding: 2mm;)char(\\")content(><b>)inline<delimiter(#{)ident(exception)operator(.)ident(class)delimiter(})>content(</b>: )inline<delimiter(#{)ident(exception)operator(.)ident(message)delimiter(})>content( <b>on</b>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts)
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")inline<delimiter(#{)ident(exception)operator(.)ident(backtrace)operator(.)ident(join)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))delimiter(})>content(</pre>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(</body>)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(</html>)delimiter(")>
+                reserved(else)
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(The server encountered an exception and was unable to complete your request)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")content(The exception has provided the following information:)delimiter(")>
+                    pre_constant(self)operator(.)ident(puts) string<delimiter(")inline<delimiter(#{)ident(exception)operator(.)ident(class)delimiter(})>content(: )inline<delimiter(#{)ident(exception)operator(.)ident(message)delimiter(})>delimiter(")>
+                    pre_constant(self)operator(.)ident(puts)
+                    pre_constant(self)operator(.)ident(puts) ident(exception)operator(.)ident(backtrace)operator(.)ident(join)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))
+                reserved(end)
+            reserved(end)
+        reserved(end)
+
+        reserved(if) instance_variable(@settings)operator([)string<delimiter(")content(cache)delimiter(")>operator(])
+            ident(buffer) operator(=) instance_variable(@buffer)operator(.)ident(join)
+
+            reserved(unless) instance_variable(@output_started)
+                reserved(unless) instance_variable(@header)operator(.)ident(has_key?)operator(()string<delimiter(")content(content-length)delimiter(")>operator(\))
+                    pre_constant(self)operator(.)ident(header)operator(()string<delimiter(")content(content-length: )inline<delimiter(#{)ident(buffer)operator(.)ident(length)delimiter(})>delimiter(")>operator(\))
+                reserved(end)
+
+                ident(sendHeaders)
+            reserved(end)
+            global_variable($stdout)operator(.)ident(print)operator(()ident(buffer)operator(\))
+        reserved(elsif) operator(!)instance_variable(@output_started)
+            ident(sendHeaders)
+        reserved(end)
+        instance_variable(@output_allowed) operator(=) pre_constant(false)operator(;)
+        comment(# }}})
+    reserved(end)
+
+    comment(# Decodes URL encoded data, %20 for example stands for a space.)
+    reserved(def) constant(Rweb)operator(.)ident(unescape)operator(()ident(str)operator(\))
+        comment(# {{{)
+        reserved(if) reserved(defined?) ident(str) reserved(and) ident(str)operator(.)ident(is_a?) constant(String)
+            ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\+)delimiter(/)>operator(,) string<delimiter(")content( )delimiter(")>operator(\))
+            ident(str)operator(.)ident(gsub)operator(()regexp<delimiter(/)content(%.{2})delimiter(/)>operator(\)) reserved(do) operator(|) ident(s) operator(|)
+                ident(s)operator([)integer(1)operator(,)integer(2)operator(])operator(.)ident(hex)operator(.)ident(chr)
+            reserved(end)
+        reserved(end)
+        comment(# }}})
+    reserved(end)
+
+    ident(protected)
+    reserved(def) method(sendHeaders)
+        comment(# {{{)
+
+        constant(Cookie)operator(.)ident(disallow) comment(# no more cookies can be set or modified)
+        reserved(if) operator(!)operator(()instance_variable(@settings)operator(.)ident(has_key?)operator(()string<delimiter(")content(silent)delimiter(")>operator(\)) reserved(and) instance_variable(@settings)operator([)string<delimiter(")content(silent)delimiter(")>operator(]) operator(==) pre_constant(true)operator(\)) reserved(and) operator(!)instance_variable(@header)operator(.)ident(has_key?)operator(()string<delimiter(")content(x-powered-by)delimiter(")>operator(\))
+            reserved(if) instance_variable(@mod_ruby)
+                ident(header)operator(()string<delimiter(")content(x-powered-by: )inline<delimiter(#{)constant(RWEB)delimiter(})>content( (Ruby/)inline<delimiter(#{)constant(RUBY_VERSION)delimiter(})>content(, )inline<delimiter(#{)constant(MOD_RUBY)delimiter(})>content(\))delimiter(")>operator(\))operator(;)
+            reserved(else)
+                ident(header)operator(()string<delimiter(")content(x-powered-by: )inline<delimiter(#{)constant(RWEB)delimiter(})>content( (Ruby/)inline<delimiter(#{)constant(RUBY_VERSION)delimiter(})>content(\))delimiter(")>operator(\))operator(;)
+            reserved(end)
+        reserved(end)
+
+        reserved(if) instance_variable(@output_method) operator(==) string<delimiter(")content(ph)delimiter(")>
+            reserved(if) operator(()operator(()instance_variable(@status) operator(==) pre_constant(nil) reserved(or) instance_variable(@status) operator(==) integer(200)operator(\)) reserved(and) operator(!)instance_variable(@header)operator(.)ident(has_key?)operator(()string<delimiter(")content(content-type)delimiter(")>operator(\)) reserved(and) operator(!)instance_variable(@header)operator(.)ident(has_key?)operator(()string<delimiter(")content(location)delimiter(")>operator(\))operator(\))
+                ident(header)operator(()string<delimiter(")content(content-type: text/html)delimiter(")>operator(\))
+            reserved(end)
+
+            reserved(if) instance_variable(@status) operator(!=) pre_constant(nil)
+                global_variable($stdout)operator(.)ident(print) string<delimiter(")content(Status: )inline<delimiter(#{)instance_variable(@status)delimiter(})>content( )inline<delimiter(#{)instance_variable(@reasonPhrase)delimiter(})>char(\\r)char(\\n)delimiter(")>
+            reserved(end)
+
+            instance_variable(@header)operator(.)ident(each) reserved(do) operator(|)ident(key)operator(,) ident(value)operator(|)
+                ident(key) operator(=) ident(key) operator(*)integer(1) comment(# "unfreeze" key :\))
+                ident(key)operator([)integer(0)operator(]) operator(=) ident(key)operator([)integer(0)operator(,)integer(1)operator(])operator(.)ident(upcase!)operator([)integer(0)operator(])
+
+                ident(key) operator(=) ident(key)operator(.)ident(gsub)operator(()regexp<delimiter(/)content(-[a-z])delimiter(/)>operator(\)) reserved(do) operator(|)ident(char)operator(|)
+                    string<delimiter(")content(-)delimiter(")> operator(+) ident(char)operator([)integer(1)operator(,)integer(1)operator(])operator(.)ident(upcase)
+                reserved(end)
+
+                global_variable($stdout)operator(.)ident(print) string<delimiter(")inline<delimiter(#{)ident(key)delimiter(})>content(: )inline<delimiter(#{)ident(value)delimiter(})>char(\\r)char(\\n)delimiter(")>
+            reserved(end)
+            ident(cookies) operator(=) constant(Cookie)operator(.)ident(getHttpHeader) comment(# Get all cookies as an HTTP Header)
+            reserved(if) ident(cookies)
+                global_variable($stdout)operator(.)ident(print) ident(cookies)
+            reserved(end)
+
+            global_variable($stdout)operator(.)ident(print) string<delimiter(")char(\\r)char(\\n)delimiter(")>
+
+        reserved(elsif) instance_variable(@output_method) operator(==) string<delimiter(")content(nph)delimiter(")>
+        reserved(elsif) instance_variable(@output_method) operator(==) string<delimiter(")content(mod_ruby)delimiter(")>
+            ident(r) operator(=) constant(Apache)operator(.)ident(request)
+
+            reserved(if) operator(()operator(()instance_variable(@status) operator(==) pre_constant(nil) reserved(or) instance_variable(@status) operator(==) integer(200)operator(\)) reserved(and) operator(!)instance_variable(@header)operator(.)ident(has_key?)operator(()string<delimiter(")content(content-type)delimiter(")>operator(\)) reserved(and) operator(!)instance_variable(@header)operator(.)ident(has_key?)operator(()string<delimiter(")content(location)delimiter(")>operator(\))operator(\))
+                ident(header)operator(()string<delimiter(")content(text/html)delimiter(")>operator(\))
+            reserved(end)
+
+            reserved(if) instance_variable(@status) operator(!=) pre_constant(nil)
+                ident(r)operator(.)ident(status_line) operator(=) string<delimiter(")inline<delimiter(#{)instance_variable(@status)delimiter(})>content( )inline<delimiter(#{)instance_variable(@reasonPhrase)delimiter(})>delimiter(")>
+            reserved(end)
+
+            ident(r)operator(.)ident(send_http_header)
+            instance_variable(@header)operator(.)ident(each) reserved(do) operator(|)ident(key)operator(,) ident(value)operator(|)
+                ident(key) operator(=) ident(key) operator(*)integer(1) comment(# "unfreeze" key :\))
+
+                ident(key)operator([)integer(0)operator(]) operator(=) ident(key)operator([)integer(0)operator(,)integer(1)operator(])operator(.)ident(upcase!)operator([)integer(0)operator(])
+                ident(key) operator(=) ident(key)operator(.)ident(gsub)operator(()regexp<delimiter(/)content(-[a-z])delimiter(/)>operator(\)) reserved(do) operator(|)ident(char)operator(|)
+                    string<delimiter(")content(-)delimiter(")> operator(+) ident(char)operator([)integer(1)operator(,)integer(1)operator(])operator(.)ident(upcase)
+                reserved(end)
+                ident(puts) string<delimiter(")inline<delimiter(#{)ident(key)delimiter(})>content(: )inline<delimiter(#{)ident(value)operator(.)ident(class)delimiter(})>delimiter(")>
+                comment(#r.headers_out[key] = value)
+            reserved(end)
+        reserved(end)
+        instance_variable(@output_started) operator(=) pre_constant(true)
+        comment(# }}})
+    reserved(end)
+
+    reserved(def) method(getReasonPhrase) operator(()ident(status)operator(\))
+        comment(# {{{)
+        reserved(if) ident(status) operator(==) integer(100)
+            string<delimiter(")content(Continue)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(101)
+            string<delimiter(")content(Switching Protocols)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(200)
+            string<delimiter(")content(OK)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(201)
+            string<delimiter(")content(Created)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(202)
+            string<delimiter(")content(Accepted)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(203)
+            string<delimiter(")content(Non-Authoritative Information)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(204)
+            string<delimiter(")content(No Content)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(205)
+            string<delimiter(")content(Reset Content)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(206)
+            string<delimiter(")content(Partial Content)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(300)
+            string<delimiter(")content(Multiple Choices)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(301)
+            string<delimiter(")content(Moved Permanently)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(302)
+            string<delimiter(")content(Found)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(303)
+            string<delimiter(")content(See Other)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(304)
+            string<delimiter(")content(Not Modified)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(305)
+            string<delimiter(")content(Use Proxy)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(307)
+            string<delimiter(")content(Temporary Redirect)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(400)
+            string<delimiter(")content(Bad Request)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(401)
+            string<delimiter(")content(Unauthorized)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(402)
+            string<delimiter(")content(Payment Required)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(403)
+            string<delimiter(")content(Forbidden)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(404)
+            string<delimiter(")content(Not Found)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(405)
+            string<delimiter(")content(Method Not Allowed)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(406)
+            string<delimiter(")content(Not Acceptable)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(407)
+            string<delimiter(")content(Proxy Authentication Required)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(408)
+            string<delimiter(")content(Request Time-out)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(409)
+            string<delimiter(")content(Conflict)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(410)
+            string<delimiter(")content(Gone)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(411)
+            string<delimiter(")content(Length Required)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(412)
+            string<delimiter(")content(Precondition Failed)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(413)
+            string<delimiter(")content(Request Entity Too Large)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(414)
+            string<delimiter(")content(Request-URI Too Large)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(415)
+            string<delimiter(")content(Unsupported Media Type)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(416)
+            string<delimiter(")content(Requested range not satisfiable)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(417)
+            string<delimiter(")content(Expectation Failed)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(500)
+            string<delimiter(")content(Internal Server Error)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(501)
+            string<delimiter(")content(Not Implemented)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(502)
+            string<delimiter(")content(Bad Gateway)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(503)
+            string<delimiter(")content(Service Unavailable)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(504)
+            string<delimiter(")content(Gateway Time-out)delimiter(")>
+        reserved(elsif) ident(status) operator(==) integer(505)
+            string<delimiter(")content(HTTP Version not supported)delimiter(")>
+        reserved(else)
+            ident(raise) string<delimiter(")content(Unknown Statuscode. See http://www.w3.org/Protocols/rfc2616/rfc2616-sec6.html#sec6.1 for more information.)delimiter(")>
+        reserved(end)
+        comment(# }}})
+    reserved(end)
+reserved(end)
+
+reserved(class) class(Cookie)
+	ident(attr_reader) symbol(:name)operator(,) symbol(:value)operator(,) symbol(:maxage)operator(,) symbol(:path)operator(,) symbol(:domain)operator(,) symbol(:secure)operator(,) symbol(:comment)
+
+	comment(# Sets a cookie. Please see below for details of the attributes.)
+	reserved(def) method(initialize) operator(()ident(name)operator(,) ident(value) operator(=) pre_constant(nil)operator(,) ident(maxage) operator(=) pre_constant(nil)operator(,) ident(path) operator(=) pre_constant(nil)operator(,) ident(domain) operator(=) pre_constant(nil)operator(,) ident(secure) operator(=) pre_constant(false)operator(\))
+		comment(# {{{)
+		comment(# HTTP headers (Cookies are a HTTP header\) can only set, while no content)
+		comment(# is send. So an exception will be raised, when @@allowed is set to false)
+		comment(# and a new cookie has set.)
+		reserved(unless) reserved(defined?)operator(()class_variable(@@allowed)operator(\))
+			class_variable(@@allowed) operator(=) pre_constant(true)
+		reserved(end)
+		reserved(unless) class_variable(@@allowed)
+			ident(raise) string<delimiter(")content(You can't set cookies after the HTTP headers are send.)delimiter(")>
+		reserved(end)
+
+		reserved(unless) reserved(defined?)operator(()class_variable(@@list)operator(\))
+			class_variable(@@list) operator(=) operator([)operator(])
+		reserved(end)
+		class_variable(@@list) operator(+=) operator([)pre_constant(self)operator(])
+
+		reserved(unless) reserved(defined?)operator(()class_variable(@@type)operator(\))
+			class_variable(@@type) operator(=) string<delimiter(")content(netscape)delimiter(")>
+		reserved(end)
+
+		reserved(unless) ident(name)operator(.)ident(class) operator(==) constant(String)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The name of a cookie must be a string)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		reserved(if) ident(value)operator(.)ident(class)operator(.)ident(superclass) operator(==) constant(Integer) operator(||) ident(value)operator(.)ident(class) operator(==) constant(Float)
+			ident(value) operator(=) ident(value)operator(.)ident(to_s)
+		reserved(elsif) ident(value)operator(.)ident(class) operator(!=) constant(String) operator(&&) ident(value) operator(!=) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The value of a cookie must be a string, integer, float or nil)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		reserved(if) ident(maxage)operator(.)ident(class) operator(==) constant(Time)
+			ident(maxage) operator(=) ident(maxage) operator(-) constant(Time)operator(.)ident(now)
+		reserved(elsif) operator(!)ident(maxage)operator(.)ident(class)operator(.)ident(superclass) operator(==) constant(Integer)  operator(||) operator(!)ident(maxage) operator(==) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The maxage date of a cookie must be an Integer or Time object or nil.)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		reserved(unless) ident(path)operator(.)ident(class) operator(==) constant(String)  operator(||) ident(path) operator(==) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The path of a cookie must be nil or a string)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		reserved(unless) ident(domain)operator(.)ident(class) operator(==) constant(String)  operator(||) ident(domain) operator(==) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The value of a cookie must be nil or a string)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		reserved(unless) ident(secure) operator(==) pre_constant(true)  operator(||) ident(secure) operator(==) pre_constant(false)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The secure field of a cookie must be true or false)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+
+		instance_variable(@name)operator(,) instance_variable(@value)operator(,) instance_variable(@maxage)operator(,) instance_variable(@path)operator(,) instance_variable(@domain)operator(,) instance_variable(@secure) operator(=) ident(name)operator(,) ident(value)operator(,) ident(maxage)operator(,) ident(path)operator(,) ident(domain)operator(,) ident(secure)
+		instance_variable(@comment) operator(=) pre_constant(nil)
+		comment(# }}})
+	reserved(end)
+
+	comment(# Modifies the value of this cookie. The information you want to store. If the)
+	comment(# value is nil, the cookie will be deleted by the client.)
+	comment(#)
+	comment(# This attribute can be a String, Integer or Float object or nil.)
+	reserved(def) method(value=)operator(()ident(value)operator(\))
+		comment(# {{{)
+		reserved(if) ident(value)operator(.)ident(class)operator(.)ident(superclass) operator(==) constant(Integer) operator(||) ident(value)operator(.)ident(class) operator(==) constant(Float)
+			ident(value) operator(=) ident(value)operator(.)ident(to_s)
+		reserved(elsif) ident(value)operator(.)ident(class) operator(!=) constant(String) operator(&&) ident(value) operator(!=) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The value of a cookie must be a string, integer, float or nil)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		instance_variable(@value) operator(=) ident(value)
+		comment(# }}})
+	reserved(end)
+
+	comment(# Modifies the maxage of this cookie. This attribute defines the lifetime of)
+	comment(# the cookie, in seconds. A value of 0 means the cookie should be discarded)
+	comment(# imediatly. If it set to nil, the cookie will be deleted when the browser)
+	comment(# will be closed.)
+	comment(#)
+	comment(# Attention: This is different from other implementations like PHP, where you)
+	comment(# gives the seconds since 1/1/1970 0:00:00 GMT.)
+	comment(#)
+	comment(# This attribute must be an Integer or Time object or nil.)
+	reserved(def) method(maxage=)operator(()ident(maxage)operator(\))
+		comment(# {{{)
+		reserved(if) ident(maxage)operator(.)ident(class) operator(==) constant(Time)
+			ident(maxage) operator(=) ident(maxage) operator(-) constant(Time)operator(.)ident(now)
+		reserved(elsif) ident(maxage)operator(.)ident(class)operator(.)ident(superclass) operator(==) constant(Integer)  operator(||) operator(!)ident(maxage) operator(==) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The maxage of a cookie must be an Interger or Time object or nil.)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		instance_variable(@maxage) operator(=) ident(maxage)
+		comment(# }}})
+	reserved(end)
+
+	comment(# Modifies the path value of this cookie. The client will send this cookie)
+	comment(# only, if the requested document is this directory or a subdirectory of it.)
+	comment(#)
+	comment(# The value of the attribute must be a String object or nil.)
+	reserved(def) method(path=)operator(()ident(path)operator(\))
+		comment(# {{{)
+		reserved(unless) ident(path)operator(.)ident(class) operator(==) constant(String)  operator(||) ident(path) operator(==) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The path of a cookie must be nil or a string)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		instance_variable(@path) operator(=) ident(path)
+		comment(# }}})
+	reserved(end)
+
+	comment(# Modifies the domain value of this cookie. The client will send this cookie)
+	comment(# only if it's connected with this domain (or a subdomain, if the first)
+	comment(# character is a dot like in ".ruby-lang.org"\))
+	comment(#)
+	comment(# The value of this attribute must be a String or nil.)
+	reserved(def) method(domain=)operator(()ident(domain)operator(\))
+		comment(# {{{)
+		reserved(unless) ident(domain)operator(.)ident(class) operator(==) constant(String)  operator(||) ident(domain) operator(==) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The domain of a cookie must be a String or nil.)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		instance_variable(@domain) operator(=) ident(domain)
+		comment(# }}})
+	reserved(end)
+
+	comment(# Modifies the secure flag of this cookie. If it's true, the client will only)
+	comment(# send this cookie if it is secured connected with us.)
+	comment(#)
+	comment(# The value od this attribute has to be true or false.)
+	reserved(def) method(secure=)operator(()ident(secure)operator(\))
+		comment(# {{{)
+		reserved(unless) ident(secure) operator(==) pre_constant(true)  operator(||) ident(secure) operator(==) pre_constant(false)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The secure field of a cookie must be true or false)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		instance_variable(@secure) operator(=) ident(secure)
+		comment(# }}})
+	reserved(end)
+
+	comment(# Modifies the comment value of this cookie. The comment won't be send, if)
+	comment(# type is "netscape".)
+	reserved(def) method(comment=)operator(()ident(comment)operator(\))
+		comment(# {{{)
+		reserved(unless) ident(comment)operator(.)ident(class) operator(==) constant(String) operator(||) ident(comment) operator(==) pre_constant(nil)
+			ident(raise) constant(TypeError)operator(,) string<delimiter(")content(The comment of a cookie must be a string or nil)delimiter(")>operator(,) ident(caller)
+		reserved(end)
+		instance_variable(@comment) operator(=) ident(comment)
+		comment(# }}})
+	reserved(end)
+
+	comment(# Changes the type of all cookies.)
+	comment(# Allowed values are RFC2109 and netscape (default\).)
+	reserved(def) constant(Cookie)operator(.)ident(type)operator(=)operator(()ident(type)operator(\))
+		comment(# {{{)
+		reserved(unless) class_variable(@@allowed)
+			ident(raise) string<delimiter(")content(The cookies are allready send, so you can't change the type anymore.)delimiter(")>
+		reserved(end)
+		reserved(unless) ident(type)operator(.)ident(downcase) operator(==) string<delimiter(")content(rfc2109)delimiter(")> operator(&&) ident(type)operator(.)ident(downcase) operator(==) string<delimiter(")content(netscape)delimiter(")>
+			ident(raise) string<delimiter(")content(The type of the cookies must be )char(\\")content(RFC2109)char(\\")content( or )char(\\")content(netscape)char(\\")content(.)delimiter(")>
+		reserved(end)
+		class_variable(@@type) operator(=) ident(type)operator(;)
+		comment(# }}})
+	reserved(end)
+
+	comment(# After sending this message, no cookies can be set or modified. Use it, when)
+	comment(# HTTP-Headers are send. Rweb does this for you.)
+	reserved(def) constant(Cookie)operator(.)ident(disallow)
+		comment(# {{{)
+		class_variable(@@allowed) operator(=) pre_constant(false)
+		pre_constant(true)
+		comment(# }}})
+	reserved(end)
+
+	comment(# Returns a HTTP header (type String\) with all cookies. Rweb does this for)
+	comment(# you.)
+	reserved(def) constant(Cookie)operator(.)ident(getHttpHeader)
+		comment(# {{{)
+		reserved(if) reserved(defined?)operator(()class_variable(@@list)operator(\))
+			reserved(if) class_variable(@@type) operator(==) string<delimiter(")content(netscape)delimiter(")>
+				ident(str) operator(=) string<delimiter(")delimiter(")>
+				class_variable(@@list)operator(.)ident(each) reserved(do) operator(|)ident(cookie)operator(|)
+					reserved(if) ident(cookie)operator(.)ident(value) operator(==) pre_constant(nil)
+						ident(cookie)operator(.)ident(maxage) operator(=) integer(0)
+						ident(cookie)operator(.)ident(value) operator(=) string<delimiter(")delimiter(")>
+					reserved(end)
+					comment(# TODO: Name and value should be escaped!)
+					ident(str) operator(+=) string<delimiter(")content(Set-Cookie: )inline<delimiter(#{)ident(cookie)operator(.)ident(name)delimiter(})>content(=)inline<delimiter(#{)ident(cookie)operator(.)ident(value)delimiter(})>delimiter(")>
+					reserved(unless) ident(cookie)operator(.)ident(maxage) operator(==) pre_constant(nil)
+						ident(expire) operator(=) constant(Time)operator(.)ident(now) operator(+) ident(cookie)operator(.)ident(maxage)
+						ident(expire)operator(.)ident(gmtime)
+						ident(str) operator(+=) string<delimiter(")content(; Expire=)inline<delimiter(#{)ident(expire)operator(.)ident(strftime)operator(()string<delimiter(")content(%a, %d-%b-%Y %H:%M:%S %Z)delimiter(")>operator(\))delimiter(})>delimiter(")>
+					reserved(end)
+					reserved(unless) ident(cookie)operator(.)ident(domain) operator(==) pre_constant(nil)
+						ident(str) operator(+=) string<delimiter(")content(; Domain=)inline<delimiter(#{)ident(cookie)operator(.)ident(domain)delimiter(})>delimiter(")>
+					reserved(end)
+					reserved(unless) ident(cookie)operator(.)ident(path) operator(==) pre_constant(nil)
+						ident(str) operator(+=) string<delimiter(")content(; Path=)inline<delimiter(#{)ident(cookie)operator(.)ident(path)delimiter(})>delimiter(")>
+					reserved(end)
+					reserved(if) ident(cookie)operator(.)ident(secure)
+						ident(str) operator(+=) string<delimiter(")content(; Secure)delimiter(")>
+					reserved(end)
+					ident(str) operator(+=) string<delimiter(")char(\\r)char(\\n)delimiter(")>
+				reserved(end)
+				reserved(return) ident(str)
+			reserved(else) comment(# type == "RFC2109")
+				ident(str) operator(=) string<delimiter(")content(Set-Cookie: )delimiter(")>
+				ident(comma) operator(=) pre_constant(false)operator(;)
+
+				class_variable(@@list)operator(.)ident(each) reserved(do) operator(|)ident(cookie)operator(|)
+					reserved(if) ident(cookie)operator(.)ident(value) operator(==) pre_constant(nil)
+						ident(cookie)operator(.)ident(maxage) operator(=) integer(0)
+						ident(cookie)operator(.)ident(value) operator(=) string<delimiter(")delimiter(")>
+					reserved(end)
+					reserved(if) ident(comma)
+						ident(str) operator(+=) string<delimiter(")content(,)delimiter(")>
+					reserved(end)
+					ident(comma) operator(=) pre_constant(true)
+
+					ident(str) operator(+=) string<delimiter(")inline<delimiter(#{)ident(cookie)operator(.)ident(name)delimiter(})>content(=)char(\\")inline<delimiter(#{)ident(cookie)operator(.)ident(value)delimiter(})>char(\\")delimiter(")>
+					reserved(unless) ident(cookie)operator(.)ident(maxage) operator(==) pre_constant(nil)
+						ident(str) operator(+=) string<delimiter(")content(; Max-Age=)char(\\")inline<delimiter(#{)ident(cookie)operator(.)ident(maxage)delimiter(})>char(\\")delimiter(")>
+					reserved(end)
+					reserved(unless) ident(cookie)operator(.)ident(domain) operator(==) pre_constant(nil)
+						ident(str) operator(+=) string<delimiter(")content(; Domain=)char(\\")inline<delimiter(#{)ident(cookie)operator(.)ident(domain)delimiter(})>char(\\")delimiter(")>
+					reserved(end)
+					reserved(unless) ident(cookie)operator(.)ident(path) operator(==) pre_constant(nil)
+						ident(str) operator(+=) string<delimiter(")content(; Path=)char(\\")inline<delimiter(#{)ident(cookie)operator(.)ident(path)delimiter(})>char(\\")delimiter(")>
+					reserved(end)
+					reserved(if) ident(cookie)operator(.)ident(secure)
+						ident(str) operator(+=) string<delimiter(")content(; Secure)delimiter(")>
+					reserved(end)
+					reserved(unless) ident(cookie)operator(.)ident(comment) operator(==) pre_constant(nil)
+						ident(str) operator(+=) string<delimiter(")content(; Comment=)char(\\")inline<delimiter(#{)ident(cookie)operator(.)ident(comment)delimiter(})>char(\\")delimiter(")>
+					reserved(end)
+					ident(str) operator(+=) string<delimiter(")content(; Version=)char(\\")content(1)char(\\")delimiter(")>
+				reserved(end)
+				ident(str)
+			reserved(end)
+		reserved(else)
+			pre_constant(false)
+		reserved(end)
+		comment(# }}})
+	reserved(end)
+reserved(end)
+
+ident(require) string<delimiter(')content(strscan)delimiter(')>
+
+reserved(module) class(BBCode)
+	constant(DEBUG) operator(=) pre_constant(true)
+
+	ident(use) string<delimiter(')content(encoder)delimiter(')>operator(,) string<delimiter(')content(tags)delimiter(')>operator(,) string<delimiter(')content(tagstack)delimiter(')>operator(,) string<delimiter(')content(smileys)delimiter(')>
+
+comment(=begin
+	The Parser class takes care of the encoding.
+	It scans the given BBCode (as plain text\), finds tags
+	and smilies and also makes links of urls in text.
+
+	Normal text is send directly to the encoder.
+
+	If a tag was found, an instance of a Tag subclass is created
+	to handle the case.
+
+	The @tagstack manages tag nesting and ensures valid HTML.
+=end)
+
+	reserved(class) class(Parser)
+		reserved(class) class(Attribute)
+			comment(# flatten and use only one empty_arg)
+			reserved(def) pre_constant(self)operator(.)ident(create) ident(attr)
+				ident(attr) operator(=) ident(flatten) ident(attr)
+				reserved(return) class_variable(@@empty_attr) reserved(if) ident(attr)operator(.)ident(empty?)
+				ident(new) ident(attr)
+			reserved(end)
+
+			ident(private_class_method) symbol(:new)
+
+			comment(# remove leading and trailing whitespace; concat lines)
+			reserved(def) pre_constant(self)operator(.)ident(flatten) ident(attr)
+				ident(attr)operator(.)ident(strip)operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\n)delimiter(/)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+				comment(# -> ^ and $ can only match at begin and end now)
+			reserved(end)
+
+			constant(ATTRIBUTE_SCAN) operator(=) regexp<delimiter(/)content(
+				(?!$\)  # don't match at end
+				)char(\\s)content(*
+				( # $1 = key
+					[^=)char(\\s)char(\\])content(")char(\\\\)content(]*
+					(?:
+						(?: )char(\\\\)content(. | "[^")char(\\\\)content(]*(?:)char(\\\\)content(.[^")char(\\\\)content(]*\)*"? \)
+						[^=)char(\\s)char(\\])content(")char(\\\\)content(]*
+					\)*
+				\)
+				(?:
+					=
+					( # $2 = value
+						[^)char(\\s)char(\\])content(")char(\\\\)content(]*
+						(?:
+							(?: )char(\\\\)content(. | "[^")char(\\\\)content(]*(?:)char(\\\\)content(.[^")char(\\\\)content(]*\)*"? \)
+							[^)char(\\s)char(\\])content(")char(\\\\)content(]*
+						\)*
+					\)?
+				\)?
+				)char(\\s)content(*
+			)delimiter(/)modifier(x)>
+
+			reserved(def) pre_constant(self)operator(.)ident(parse) ident(source)
+				ident(source) operator(=) ident(source)operator(.)ident(dup)
+				comment(# empty_tag: the tag looks like [... /])
+				comment(# slice!: this deletes the \\s*/] at the end)
+				comment(# \\s+ because [url=http://rubybb.org/forum/] is NOT an empty tag.)
+				comment(# In RubyBBCode, you can use [url=http://rubybb.org/forum/ /], and this has to be)
+				comment(# interpreted correctly.)
+				ident(empty_tag) operator(=) ident(source)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(^:)delimiter(/)>operator(,) string<delimiter(')content(=)delimiter(')>operator(\)) reserved(or) ident(source)operator(.)ident(slice!)operator(()regexp<delimiter(/)char(\\/)content($)delimiter(/)>operator(\))
+				ident(debug) string<delimiter(')content(PARSE: )delimiter(')> operator(+) ident(source)operator(.)ident(inspect) operator(+) string<delimiter(')content( => )delimiter(')> operator(+) ident(empty_tag)operator(.)ident(inspect)
+				comment(#-> we have now an attr that's EITHER empty OR begins and ends with non-whitespace.)
+
+				ident(attr) operator(=) constant(Hash)operator(.)ident(new)
+				ident(attr)operator([)symbol(:flags)operator(]) operator(=) operator([)operator(])
+				ident(source)operator(.)ident(scan)operator(()constant(ATTRIBUTE_SCAN)operator(\)) operator({) operator(|)ident(key)operator(,) ident(value)operator(|)
+					reserved(if) reserved(not) ident(value)
+						ident(attr)operator([)symbol(:flags)operator(]) operator(<<) ident(unescape)operator(()ident(key)operator(\))
+					reserved(else)
+						reserved(next) reserved(if) ident(value)operator(.)ident(empty?) reserved(and) ident(key)operator(.)ident(empty?)
+						ident(attr)operator([)ident(unescape)operator(()ident(key)operator(\))operator(]) operator(=) ident(unescape)operator(()ident(value)operator(\))
+					reserved(end)
+				operator(})
+				ident(debug) ident(attr)operator(.)ident(inspect)
+
+				reserved(return) ident(empty_tag)operator(,) ident(attr)
+			reserved(end)
+
+			reserved(def) pre_constant(self)operator(.)ident(unescape_char) ident(esc)
+				ident(esc)operator([)integer(1)operator(])
+			reserved(end)
+
+			reserved(def) pre_constant(self)operator(.)ident(unquote) ident(qt)
+				ident(qt)operator([)integer(1)operator(..)integer(-1)operator(])operator(.)ident(chomp)operator(()string<delimiter(')content(")delimiter(')>operator(\))operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\\\)content(.)delimiter(/)>operator(\)) operator({) operator(|)ident(esc)operator(|) ident(unescape_char) ident(esc) operator(})
+			reserved(end)
+
+			reserved(def) pre_constant(self)operator(.)ident(unescape) ident(str)
+				ident(str)operator(.)ident(gsub)operator(()regexp<delimiter(/)content( ()char(\\\\)content(.\) | (" [^")char(\\\\)content(]* (?:)char(\\\\)content(.[^")char(\\\\)content(]*\)* "?\) )delimiter(/)modifier(x)>operator(\)) operator({)
+					reserved(if) global_variable($1)
+						ident(unescape_char) global_variable($1)
+					reserved(else)
+						ident(unquote) global_variable($2)
+					reserved(end)
+				operator(})
+			reserved(end)
+
+			ident(include) constant(Enumerable)
+			reserved(def) method(each) operator(&)ident(block)
+				instance_variable(@args)operator(.)ident(each)operator(()operator(&)ident(block)operator(\))
+			reserved(end)
+
+			ident(attr_reader) symbol(:source)operator(,) symbol(:args)operator(,) symbol(:value)
+
+			reserved(def) method(initialize) ident(source)
+				instance_variable(@source) operator(=) ident(source)
+				ident(debug) string<delimiter(')content(Attribute#new(%p\))delimiter(')> operator(%) ident(source)
+				instance_variable(@empty_tag)operator(,) instance_variable(@attr) operator(=) constant(Attribute)operator(.)ident(parse) ident(source)
+				instance_variable(@value) operator(=) instance_variable(@attr)operator([)string<delimiter(')delimiter(')>operator(])operator(.)ident(to_s)
+			reserved(end)
+
+			reserved(def) method(empty?)
+				pre_constant(self) operator(==) class_variable(@@empty_attr)
+			reserved(end)
+
+			reserved(def) method(empty_tag?)
+				instance_variable(@empty_tag)
+			reserved(end)
+
+			reserved(def) method([]) operator(*)ident(keys)
+				ident(res) operator(=) instance_variable(@attr)operator([)operator(*)ident(keys)operator(])
+			reserved(end)
+
+			reserved(def) method(flags)
+				ident(attr)operator([)symbol(:flags)operator(])
+			reserved(end)
+
+			reserved(def) method(to_s)
+				instance_variable(@attr)
+			reserved(end)
+
+			reserved(def) method(inspect)
+				string<delimiter(')content(ATTR[)delimiter(')> operator(+) instance_variable(@attr)operator(.)ident(inspect) operator(+) operator(()instance_variable(@empty_tag) operator(?) string<delimiter(')content( | empty tag)delimiter(')> operator(:) string<delimiter(')delimiter(')>operator(\)) operator(+) string<delimiter(')content(])delimiter(')>
+			reserved(end)
+		reserved(end)
+		reserved(class) class(Attribute)
+			class_variable(@@empty_attr) operator(=) ident(new) string<delimiter(')delimiter(')>
+		reserved(end)
+	reserved(end)
+
+	reserved(class) class(Parser)
+		reserved(def) constant(Parser)operator(.)ident(flatten) ident(str)
+			comment(# replace mac & dos newlines with unix style)
+			ident(str)operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\r)char(\\n)content(?)delimiter(/)>operator(,) string<delimiter(")char(\\n)delimiter(")>operator(\))
+		reserved(end)
+
+		reserved(def) method(initialize) ident(input) operator(=) string<delimiter(')delimiter(')>
+			comment(# input manager)
+			instance_variable(@scanner) operator(=) constant(StringScanner)operator(.)ident(new) string<delimiter(')delimiter(')>
+			comment(# output manager)
+			instance_variable(@encoder) operator(=) constant(Encoder)operator(.)ident(new)
+			instance_variable(@output) operator(=) string<delimiter(')delimiter(')>
+			comment(# tag manager)
+			instance_variable(@tagstack) operator(=) constant(TagStack)operator(.)ident(new)operator(()instance_variable(@encoder)operator(\))
+
+			instance_variable(@do_magic) operator(=) pre_constant(true)
+			comment(# set the input)
+			ident(feed) ident(input)
+		reserved(end)
+
+		comment(# if you want, you can feed a parser instance after creating,)
+		comment(# or even feed it repeatedly.)
+		reserved(def) method(feed) ident(food)
+			instance_variable(@scanner)operator(.)ident(string) operator(=) constant(Parser)operator(.)ident(flatten) ident(food)
+		reserved(end)
+
+		comment(# parse through the string using parse_token)
+		reserved(def) method(parse)
+			ident(parse_token) reserved(until) instance_variable(@scanner)operator(.)ident(eos?)
+			instance_variable(@tagstack)operator(.)ident(close_all)
+			instance_variable(@output) operator(=) ident(parse_magic) instance_variable(@encoder)operator(.)ident(output)
+		reserved(end)
+
+		reserved(def) method(output)
+			instance_variable(@output)
+		reserved(end)
+
+	comment(# ok, internals start here)
+	ident(private)
+		comment(# the default output functions. everything should use them or the tags.)
+		reserved(def) method(add_text) ident(text) operator(=) instance_variable(@scanner)operator(.)ident(matched)
+			instance_variable(@encoder)operator(.)ident(add_text) ident(text)
+		reserved(end)
+
+		comment(# use this carefully)
+		reserved(def) method(add_html) ident(html)
+			instance_variable(@encoder)operator(.)ident(add_html) ident(html)
+		reserved(end)
+
+		comment(# highlights the text as error)
+		reserved(def) method(add_garbage) ident(garbage)
+			ident(add_html) string<delimiter(')content(<span class="error">)delimiter(')> reserved(if) constant(DEBUG)
+			ident(add_text) ident(garbage)
+			ident(add_html) string<delimiter(')content(</span>)delimiter(')> reserved(if) constant(DEBUG)
+		reserved(end)
+
+		comment(# unknown and incorrectly nested tags are ignored and)
+		comment(# sent as plaintext (garbage in - garbage out\).)
+		comment(# in debug mode, garbage is marked with lime background.)
+		reserved(def) method(garbage_out) ident(start)
+			instance_variable(@scanner)operator(.)ident(pos) operator(=) ident(start)
+			ident(garbage) operator(=) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content(.)delimiter(/)modifier(m)>operator(\))
+			ident(debug) string<delimiter(')content(GARBAGE: )delimiter(')> operator(+) ident(garbage)
+			ident(add_garbage) ident(garbage)
+		reserved(end)
+
+		comment(# simple text; everything but [, \\[ allowed)
+		constant(SIMPLE_TEXT_SCAN_) operator(=) regexp<delimiter(/)content(
+			[^)char(\\[)char(\\\\)content(]*    # normal*
+			(?:         # (
+			)char(\\\\)content(.?        #   special
+			[^)char(\\[)char(\\\\)content(]*    #   normal*
+			\)*          # \)*
+		)delimiter(/)modifier(mx)>
+		constant(SIMPLE_TEXT_SCAN) operator(=) regexp<delimiter(/)content([^)char(\\[)content(]+)delimiter(/)>
+
+comment(=begin
+
+	WHAT IS A TAG?
+	==============
+
+	Tags in BBCode can be much more than just a simple [b].
+	I use many terms here to differ the parts of each tag.
+
+	Basic scheme:
+	    [         code        ]
+	TAG START   TAG INFO   TAG END
+
+	Most tags need a second tag to close the range it opened.
+	This is done with CLOSING TAGS:
+		[/code]
+	or by using empty tags that have no content and close themselfes:
+		[url=winamp.com /]
+	You surely know this from HTML.
+	These slashes define the TAG KIND = normal|closing|empty and
+	cannot be	used together.
+
+	Everything between [ and ] and expluding the slashes is called the
+	TAG INFO.	This info may contain:
+	- TAG ID
+	- TAG NAME including the tag id
+	- attributes
+
+	The TAG ID is the first char of the info:
+
+	TAG       | ID
+	----------+----
+	[quote]   | q
+	[&plusmn] | &
+	["[b]"]   | "
+	[/url]    | u
+	[---]     | -
+
+	As you can see, the tag id shows the TAG TYPE, it can be a
+	normal tag,	a formatting tag or an entity.
+	Therefor, the parser first scans the id to decide how to go
+	on with parsing.
+=end)
+		comment(# tag)
+		comment(# TODO more complex expression allowing)
+		comment(#   [quote="[ladico]"] and [quote=\\[ladico\\]] to be correct tags)
+		constant(TAG_BEGIN_SCAN) operator(=) regexp<delimiter(/)content(
+			)char(\\[)content(             # tag start
+			( )char(\\/)content( \)?        # $1 = closing tag?
+			( [^)char(\\])content(] \)      # $2 = tag id
+		)delimiter(/)modifier(x)>
+		constant(TAG_END_SCAN) operator(=) regexp<delimiter(/)content(
+			[^)char(\\])content(]*         # rest that was not handled
+			)char(\\])content(?            # tag end
+		)delimiter(/)modifier(x)>
+		constant(CLOSE_TAG_SCAN) operator(=) regexp<delimiter(/)content(
+			( [^)char(\\])content(]* \)     # $1 = the rest of the tag info
+			( )char(\\/)content( \)?        # $2 = empty tag?
+			)char(\\])content(?            # tag end
+		)delimiter(/)modifier(x)>
+		constant(UNCLOSED_TAG_SCAN) operator(=) regexp<delimiter(/)content( )char(\\[)content( )delimiter(/)modifier(x)>
+
+		constant(CLASSIC_TAG_SCAN) operator(=) regexp<delimiter(/)content( [a-z]* )delimiter(/)modifier(ix)>
+
+		constant(SEPARATOR_TAG_SCAN) operator(=) regexp<delimiter(/)content( )char(\\*)content(* )delimiter(/)modifier(x)>
+
+		constant(FORMAT_TAG_SCAN) operator(=) regexp<delimiter(/)content( -- -* )delimiter(/)modifier(x)>
+
+		constant(QUOTED_SCAN) operator(=) regexp<delimiter(/)content(
+			(            # $1 = quoted text
+				[^")char(\\\\)content(]*    # normal*
+				(?:        # (
+					)char(\\\\)content(.      # 	special
+					[^")char(\\\\)content(]*  # 	normal*
+				\)*         # \)*
+			\)
+			"?           # end quote "
+		)delimiter(/)modifier(mx)>
+
+		constant(ENTITY_SCAN) operator(=) regexp<delimiter(/)content(
+			( [^;)char(\\])content(]+ \)  # $1 = entity code
+			;?           # optional ending semicolon
+		)delimiter(/)modifier(ix)>
+
+		constant(SMILEY_SCAN) operator(=) constant(Smileys)operator(::)constant(SMILEY_PATTERN)
+
+		comment(# this is the main parser loop that separates)
+		comment(#   text - everything until "[")
+		comment(# from)
+		comment(#   tags - starting with "[", ending with "]")
+		reserved(def) method(parse_token)
+			reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(SIMPLE_TEXT_SCAN)operator(\))
+				ident(add_text)
+			reserved(else)
+				ident(handle_tag)
+			reserved(end)
+		reserved(end)
+
+		reserved(def) method(handle_tag)
+			ident(tag_start) operator(=) instance_variable(@scanner)operator(.)ident(pos)
+
+			reserved(unless) instance_variable(@scanner)operator(.)ident(scan) constant(TAG_BEGIN_SCAN)
+				ident(garbage_out) ident(tag_start)
+				reserved(return)
+			reserved(end)
+
+			ident(closing)operator(,) ident(id) operator(=) instance_variable(@scanner)operator([)integer(1)operator(])operator(,) instance_variable(@scanner)operator([)integer(2)operator(])
+			comment(#debug 'handle_tag(%p\)' % @scanner.matched)
+
+			ident(handled) operator(=)
+				reserved(case) ident(id)
+
+					reserved(when) regexp<delimiter(/)content([a-z])delimiter(/)modifier(i)>
+						reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(CLASSIC_TAG_SCAN)operator(\))
+							reserved(if) ident(handle_classic_tag)operator(()ident(id) operator(+) instance_variable(@scanner)operator(.)ident(matched)operator(,) ident(closing)operator(\))
+								ident(already_closed) operator(=) pre_constant(true)
+							reserved(end)
+						reserved(end)
+
+					reserved(when) string<delimiter(')content(*)delimiter(')>
+						reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(SEPARATOR_TAG_SCAN)operator(\))
+							ident(handle_asterisk) ident(tag_start)operator(,) ident(id) operator(+) instance_variable(@scanner)operator(.)ident(matched)
+							pre_constant(true)
+						reserved(end)
+
+					reserved(when) string<delimiter(')content(-)delimiter(')>
+						reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(FORMAT_TAG_SCAN)operator(\))
+							comment(#format = id + @scanner.matched)
+							instance_variable(@encoder)operator(.)ident(add_html) string<delimiter(")char(\\n)content(<hr>)char(\\n)delimiter(")>
+							pre_constant(true)
+						reserved(end)
+
+					reserved(when) string<delimiter(')content(")delimiter(')>
+						reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(QUOTED_SCAN)operator(\))
+							instance_variable(@encoder)operator(.)ident(add_text) ident(unescape)operator(()instance_variable(@scanner)operator([)integer(1)operator(])operator(\))
+							pre_constant(true)
+						reserved(end)
+
+					reserved(when) string<delimiter(')content(&)delimiter(')>
+						reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(ENTITY_SCAN)operator(\))
+							instance_variable(@encoder)operator(.)ident(add_entity) instance_variable(@scanner)operator([)integer(1)operator(])
+							pre_constant(true)
+						reserved(end)
+
+					reserved(when) constant(Smileys)operator(::)constant(SMILEY_START_CHARSET)
+						instance_variable(@scanner)operator(.)ident(pos) operator(=) instance_variable(@scanner)operator(.)ident(pos) operator(-) integer(1)  comment(# (ungetch\))
+						reserved(if) instance_variable(@scanner)operator(.)ident(scan)operator(()constant(SMILEY_SCAN)operator(\))
+							instance_variable(@encoder)operator(.)ident(add_html) constant(Smileys)operator(.)ident(smiley_to_image)operator(()instance_variable(@scanner)operator(.)ident(matched)operator(\))
+							pre_constant(true)
+						reserved(end)
+
+				reserved(end) comment(# case)
+
+			reserved(return) ident(garbage_out)operator(()ident(tag_start)operator(\)) reserved(unless) ident(handled)
+
+			instance_variable(@scanner)operator(.)ident(scan)operator(()constant(TAG_END_SCAN)operator(\)) reserved(unless) ident(already_closed)
+		reserved(end)
+
+		constant(ATTRIBUTES_SCAN) operator(=) regexp<delimiter(/)content(
+			(
+				[^)char(\\])content(")char(\\\\)content(]*
+				(?:
+					(?:
+						)char(\\\\)content(.
+					|
+						"
+						[^")char(\\\\)content(]*
+						(?:
+							)char(\\\\)content(.
+							[^")char(\\\\)content(]*
+						\)*
+						"?
+					\)
+					[^)char(\\])content(")char(\\\\)content(]*
+				\)*
+			\)
+			)char(\\])content(?
+		)delimiter(/)modifier(x)>
+
+		reserved(def) method(handle_classic_tag) ident(name)operator(,) ident(closing)
+			ident(debug) string<delimiter(')content(TAG: )delimiter(')> operator(+) operator(()ident(closing) operator(?) string<delimiter(')content(/)delimiter(')> operator(:) string<delimiter(')delimiter(')>operator(\)) operator(+) ident(name)
+			comment(# flatten)
+			ident(name)operator(.)ident(downcase!)
+			ident(tag_class) operator(=) constant(TAG_LIST)operator([)ident(name)operator(])
+			reserved(return) reserved(unless) ident(tag_class)
+
+			comment(#debug((opening ? 'OPEN ' : 'CLOSE '\) + tag_class.name\))
+
+			comment(# create an attribute object to handle it)
+			instance_variable(@scanner)operator(.)ident(scan)operator(()constant(ATTRIBUTES_SCAN)operator(\))
+			comment(#debug name + ':' + @scanner[1])
+			ident(attr) operator(=) constant(Attribute)operator(.)ident(create) instance_variable(@scanner)operator([)integer(1)operator(])
+			comment(#debug 'ATTRIBUTES %p ' % attr #unless attr.empty?)
+
+			comment(#debug 'closing: %p; name=%s, attr=%p' % [closing, name, attr])
+
+			comment(# OPEN)
+			reserved(if) reserved(not) ident(closing) reserved(and) ident(tag) operator(=) instance_variable(@tagstack)operator(.)ident(try_open_class)operator(()ident(tag_class)operator(,) ident(attr)operator(\))
+				comment(#debug 'opening')
+				ident(tag)operator(.)ident(do_open) instance_variable(@scanner)
+				comment(# this should be done by the tag itself.)
+				reserved(if) ident(attr)operator(.)ident(empty_tag?)
+					ident(tag)operator(.)ident(handle_empty)
+					instance_variable(@tagstack)operator(.)ident(close_tag)
+				reserved(elsif) ident(tag)operator(.)ident(special_content?)
+					ident(handle_special_content)operator(()ident(tag)operator(\))
+					instance_variable(@tagstack)operator(.)ident(close_tag)
+					comment(#        # ignore asterisks directly after the opening; these are phpBBCode)
+					comment(#        elsif tag.respond_to? :asterisk)
+					comment(#          debug 'SKIP ASTERISKS: ' if @scanner.skip(ASTERISK_TAGS_SCAN\))
+				reserved(end)
+
+			comment(# CLOSE)
+			reserved(elsif) instance_variable(@tagstack)operator(.)ident(try_close_class)operator(()ident(tag_class)operator(\))
+				comment(#debug 'closing')
+				comment(# GARBAGE)
+			reserved(else)
+				reserved(return)
+			reserved(end)
+
+			pre_constant(true)
+		reserved(end)
+
+		reserved(def) method(handle_asterisk) ident(tag_start)operator(,) ident(stars)
+			comment(#debug 'ASTERISK: ' + stars.to_s)
+			comment(# rule for asterisk tags: they belong to the last tag)
+			comment(# that handles them. tags opened after this tag are closed.)
+			comment(# if no open tag uses them, all are closed.)
+			ident(tag) operator(=) instance_variable(@tagstack)operator(.)ident(close_all_until) operator({) operator(|)ident(tag)operator(|) ident(tag)operator(.)ident(respond_to?) symbol(:asterisk) operator(})
+			reserved(unless) ident(tag) reserved(and) ident(tag)operator(.)ident(asterisk) ident(stars)operator(,) instance_variable(@scanner)
+				ident(garbage_out) ident(tag_start)
+			reserved(end)
+		reserved(end)
+
+		reserved(def) method(handle_special_content) ident(tag)
+			ident(scanned) operator(=) instance_variable(@scanner)operator(.)ident(scan_until)operator(()ident(tag)operator(.)ident(closing_tag)operator(\))
+			reserved(if) ident(scanned)
+				ident(scanned)operator(.)ident(slice!)operator(()operator(-)operator(()instance_variable(@scanner)operator(.)ident(matched)operator(.)ident(size)operator(\))operator(..)integer(-1)operator(\))
+			reserved(else)
+				ident(scanned) operator(=) instance_variable(@scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content(.*)delimiter(/)modifier(m)>operator(\))operator(.)ident(to_s)
+			reserved(end)
+			comment(#debug 'SPECIAL CONTENT: ' + scanned)
+			ident(tag)operator(.)ident(handle_content)operator(()ident(scanned)operator(\))
+		reserved(end)
+
+		reserved(def) method(unescape) ident(text)
+			comment(# input: correctly formatted quoted string (without the quotes\))
+			ident(text)operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\\\)content((?:([")char(\\\\)content(]\)|.\))delimiter(/)>operator(\)) operator({) global_variable($1) reserved(or) global_variable($&) operator(})
+		reserved(end)
+
+
+		comment(# MAGIC FEAUTURES)
+
+		constant(URL_PATTERN) operator(=) regexp<delimiter(/)content((?:(?:www|ftp\))char(\\.)content(|(?>)char(\\w)content({3,}\):)char(\\/)char(\\/)content(\))char(\\S)content(+)delimiter(/)>
+		constant(EMAIL_PATTERN) operator(=) regexp<delimiter(/)content((?>[)char(\\w)char(\\-)content(_.]+\)@[)char(\\w)char(\\-)char(\\.)content(]+)char(\\.)char(\\w)content(+)delimiter(/)>
+
+		constant(HAS_MAGIC) operator(=) regexp<delimiter(/)content([&@)inline<delimiter(#{)constant(Smileys)operator(::)constant(SMILEY_START_CHARS)delimiter(})>content(]|(?i:www|ftp\))delimiter(/)>
+
+		constant(MAGIC_PATTERN) operator(=) constant(Regexp)operator(.)ident(new)operator(()string<delimiter(')content(()content(\\W)content(|^\)(%s\))delimiter(')> operator(%)
+			operator([)constant(Smileys)operator(::)constant(MAGIC_SMILEY_PATTERN)operator(,) constant(URL_PATTERN)operator(,) constant(EMAIL_PATTERN)operator(])operator(.)ident(map) operator({) operator(|)ident(pattern)operator(|)
+				ident(pattern)operator(.)ident(to_s)
+			operator(})operator(.)ident(join)operator(()string<delimiter(')content(|)delimiter(')>operator(\)) operator(\))
+
+		constant(IS_SMILEY_PATTERN) operator(=) constant(Regexp)operator(.)ident(new)operator(()string<delimiter(')content(^%s)delimiter(')> operator(%) constant(Smileys)operator(::)constant(SMILEY_START_CHARSET)operator(.)ident(to_s) operator(\))
+		constant(IS_URL_PATTERN) operator(=) regexp<delimiter(/)content(^(?:(?i:www|ftp\))char(\\.)content(|(?>)char(\\w)content(+\):)char(\\/)char(\\/)content(\))delimiter(/)>
+		constant(URL_STARTS_WITH_PROTOCOL) operator(=) regexp<delimiter(/)content(^)char(\\w)content(+:)char(\\/)char(\\/)delimiter(/)>
+		constant(IS_EMAIL_PATTERN) operator(=) regexp<delimiter(/)content(^[)char(\\w)char(\\-)content(_.]+@)delimiter(/)>
+
+		reserved(def) method(to_magic) ident(text)
+			comment(#      debug MAGIC_PATTERN.to_s)
+			ident(text)operator(.)ident(gsub!)operator(()constant(MAGIC_PATTERN)operator(\)) operator({)
+				ident(magic) operator(=) global_variable($2)
+				global_variable($1) operator(+) reserved(case) ident(magic)
+					reserved(when) constant(IS_SMILEY_PATTERN)
+						constant(Smileys)operator(.)ident(smiley_to_img) ident(magic)
+					reserved(when) constant(IS_URL_PATTERN)
+						ident(last) operator(=) ident(magic)operator(.)ident(slice_punctation!)  comment(# no punctation in my URL)
+						ident(href) operator(=) ident(magic)
+						ident(href)operator(.)ident(insert)operator(()integer(0)operator(,) string<delimiter(')content(http://)delimiter(')>operator(\)) reserved(unless) ident(magic) operator(=)operator(~) constant(URL_STARTS_WITH_PROTOCOL)
+						string<delimiter(')content(<a href=")delimiter(')> operator(+) ident(href) operator(+) string<delimiter(')content(">)delimiter(')> operator(+) ident(magic) operator(+) string<delimiter(')content(</a>)delimiter(')> operator(+) ident(last)
+					reserved(when) constant(IS_EMAIL_PATTERN)
+						ident(last) operator(=) ident(magic)operator(.)ident(slice_punctation!)
+						string<delimiter(')content(<a href="mailto:)delimiter(')> operator(+) ident(magic) operator(+) string<delimiter(')content(">)delimiter(')> operator(+) ident(magic) operator(+) string<delimiter(')content(</a>)delimiter(')> operator(+) ident(last)
+				reserved(else)
+					ident(raise) string<delimiter(')content({{{)delimiter(')> operator(+) ident(magic) operator(+) string<delimiter(')content(}}})delimiter(')>
+				reserved(end)
+			operator(})
+			ident(text)
+		reserved(end)
+
+		comment(# handles smileys and urls)
+		reserved(def) method(parse_magic) ident(html)
+			reserved(return) ident(html) reserved(unless) instance_variable(@do_magic)
+			ident(scanner) operator(=) constant(StringScanner)operator(.)ident(new) ident(html)
+			ident(out) operator(=) string<delimiter(')delimiter(')>
+			reserved(while) ident(scanner)operator(.)ident(rest?)
+				reserved(if) ident(scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content( < (?: a)char(\\s)content( .*? <)char(\\/)content(a> | pre)char(\\W)content( .*? <)char(\\/)content(pre> | [^>]* > \) )delimiter(/)modifier(mx)>operator(\))
+					ident(out) operator(<<) ident(scanner)operator(.)ident(matched)
+				reserved(elsif) ident(scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content( [^<]+ )delimiter(/)modifier(x)>operator(\))
+					ident(out) operator(<<) ident(to_magic)operator(()ident(scanner)operator(.)ident(matched)operator(\))
+
+				comment(# this should never happen)
+				reserved(elsif) ident(scanner)operator(.)ident(scan)operator(()regexp<delimiter(/)content(.)delimiter(/)modifier(m)>operator(\))
+					ident(raise) string<delimiter(')content(ERROR: else case reached)delimiter(')>
+				reserved(end)
+			reserved(end)
+			ident(out)
+		reserved(end)
+	reserved(end)  comment(# Parser)
+reserved(end)
+
+reserved(class) class(String)
+	reserved(def) method(slice_punctation!)
+		ident(slice!)operator(()regexp<delimiter(/)content([.:,!)char(\\?)content(]+$)delimiter(/)>operator(\))operator(.)ident(to_s)  comment(# return '' instead of nil)
+	reserved(end)
+reserved(end)
+
+comment(#)
+comment(# = Grammar)
+comment(#)
+comment(# An implementation of common algorithms on grammars.)
+comment(#)
+comment(# This is used by Shinobu, a visualization tool for educating compiler-building.)
+comment(#)
+comment(# Thanks to Andreas Kunert for his wonderful LR(k\) Pamphlet (German, see http://www.informatik.hu-berlin.de/~kunert/papers/lr-analyse\), and Aho/Sethi/Ullman for their Dragon Book.)
+comment(#)
+comment(# Homepage::  http://shinobu.cYcnus.de (not existing yet\))
+comment(# Author::    murphy (Kornelius Kalnbach\))
+comment(# Copyright:: (cc\) 2005 cYcnus)
+comment(# License::   GPL)
+comment(# Version:: 0.2.0 (2005-03-27\))
+
+ident(require) string<delimiter(')content(set_hash)delimiter(')>
+ident(require) string<delimiter(')content(ctype)delimiter(')>
+ident(require) string<delimiter(')content(tools)delimiter(')>
+ident(require) string<delimiter(')content(rules)delimiter(')>
+ident(require) string<delimiter(')content(trace)delimiter(')>
+
+ident(require) string<delimiter(')content(first)delimiter(')>
+ident(require) string<delimiter(')content(follow)delimiter(')>
+
+comment(# = Grammar)
+comment(#)
+comment(# == Syntax)
+comment(#)
+comment(# === Rules)
+comment(#)
+comment(# Each line is a rule.)
+comment(# The syntax is)
+comment(#)
+comment(# 	left - right)
+comment(#)
+comment(# where +left+ and +right+ can be uppercase and lowercase letters,)
+comment(# and <code>-</code> can be any combination of <, >, - or whitespace.)
+comment(#)
+comment(# === Symbols)
+comment(#)
+comment(# Uppercase letters stand for meta symbols, lowercase for terminals.)
+comment(#)
+comment(# You can make epsilon-derivations by leaving <code><right></code> empty.)
+comment(#)
+comment(# === Example)
+comment(# 	S - Ac)
+comment(# 	A - Sc)
+comment(# 	A - b)
+comment(# 	A -)
+reserved(class) class(Grammar)
+
+	ident(attr_reader) symbol(:tracer)
+	comment(# Creates a new Grammar.)
+	comment(# If $trace is true, the algorithms explain (textual\) what they do to $stdout.)
+	reserved(def) method(initialize) ident(data)operator(,) ident(tracer) operator(=) constant(Tracer)operator(.)ident(new)
+		instance_variable(@tracer) operator(=) ident(tracer)
+		instance_variable(@rules) operator(=) constant(Rules)operator(.)ident(new)
+		instance_variable(@terminals)operator(,) instance_variable(@meta_symbols) operator(=) constant(SortedSet)operator(.)ident(new)operator(,) constant(Array)operator(.)ident(new)
+		instance_variable(@start_symbol) operator(=) pre_constant(nil)
+		ident(add_rules) ident(data)
+	reserved(end)
+
+	ident(attr_reader) symbol(:meta_symbols)operator(,) symbol(:terminals)operator(,) symbol(:rules)operator(,) symbol(:start_symbol)
+
+	ident(alias_method) symbol(:sigma)operator(,) symbol(:terminals)
+	ident(alias_method) symbol(:alphabet)operator(,) symbol(:terminals)
+	ident(alias_method) symbol(:variables)operator(,) symbol(:meta_symbols)
+	ident(alias_method) symbol(:nonterminals)operator(,) symbol(:meta_symbols)
+
+	comment(# A string representation of the grammar for debugging.)
+	reserved(def) method(inspect) ident(productions_too) operator(=) pre_constant(false)
+		string<delimiter(')content(Grammar(meta symbols: %s; alphabet: %s; productions: [%s]; start symbol: %s\))delimiter(')> operator(%)
+			operator([)
+				ident(meta_symbols)operator(.)ident(join)operator(()string<delimiter(')content(, )delimiter(')>operator(\))operator(,)
+				ident(terminals)operator(.)ident(join)operator(()string<delimiter(')content(, )delimiter(')>operator(\))operator(,)
+				reserved(if) ident(productions_too)
+					instance_variable(@rules)operator(.)ident(inspect)
+				reserved(else)
+					instance_variable(@rules)operator(.)ident(size)
+				reserved(end)operator(,)
+				ident(start_symbol)
+			operator(])
+	reserved(end)
+
+	comment(# Add rules to the grammar. +rules+ should be a String or respond to +scan+ in a similar way.)
+	comment(#)
+	comment(# Syntax: see Grammar.)
+	reserved(def) method(add_rules) ident(grammar)
+		instance_variable(@rules) operator(=) constant(Rules)operator(.)ident(parse) ident(grammar) reserved(do) operator(|)ident(rule)operator(|)
+			instance_variable(@start_symbol) operator(||=) ident(rule)operator(.)ident(left)
+			instance_variable(@meta_symbols) operator(<<) ident(rule)operator(.)ident(left)
+			instance_variable(@terminals)operator(.)ident(merge) ident(rule)operator(.)ident(right)operator(.)ident(split)operator(()string<delimiter(')delimiter(')>operator(\))operator(.)ident(select) operator({) operator(|)ident(s)operator(|) ident(terminal?) ident(s) operator(})
+		reserved(end)
+		instance_variable(@meta_symbols)operator(.)ident(uniq!)
+		ident(update)
+	reserved(end)
+
+	comment(# Returns a hash acting as FIRST operator, so that)
+	comment(# <code>first["ABC"]</code> is FIRST(ABC\).)
+	comment(# See http://en.wikipedia.org/wiki/LL_parser "Constructing an LL(1\) parsing table" for details.)
+	reserved(def) method(first)
+		ident(first_operator)
+	reserved(end)
+
+	comment(# Returns a hash acting as FOLLOW operator, so that)
+	comment(# <code>first["A"]</code> is FOLLOW(A\).)
+	comment(# See http://en.wikipedia.org/wiki/LL_parser "Constructing an LL(1\) parsing table" for details.)
+	reserved(def) method(follow)
+		ident(follow_operator)
+	reserved(end)
+
+	constant(LLError) operator(=) constant(Class)operator(.)ident(new)operator(()constant(Exception)operator(\))
+	constant(LLErrorType1) operator(=) constant(Class)operator(.)ident(new)operator(()constant(LLError)operator(\))
+	constant(LLErrorType2) operator(=) constant(Class)operator(.)ident(new)operator(()constant(LLError)operator(\))
+
+	comment(# Tests if the grammar is LL(1\).)
+	reserved(def) method(ll1?)
+		reserved(begin)
+			reserved(for) ident(meta) reserved(in) instance_variable(@meta_symbols)
+				ident(first_sets) operator(=) instance_variable(@rules)operator([)ident(meta)operator(])operator(.)ident(map) operator({) operator(|)ident(alpha)operator(|) ident(first)operator([)ident(alpha)operator(]) operator(})
+				ident(first_sets)operator(.)ident(inject)operator(()constant(Set)operator([)operator(])operator(\)) reserved(do) operator(|)ident(already_used)operator(,) ident(another_first_set)operator(|)
+					reserved(unless) ident(already_used)operator(.)ident(disjoint?) ident(another_first_set)
+						ident(raise) constant(LLErrorType1)
+					reserved(end)
+					ident(already_used)operator(.)ident(merge) ident(another_first_set)
+				reserved(end)
+
+				reserved(if) ident(first)operator([)ident(meta)operator(])operator(.)ident(include?) constant(EPSILON) reserved(and) reserved(not) ident(first)operator([)ident(meta)operator(])operator(.)ident(disjoint?) ident(follow)operator([)ident(meta)operator(])
+					ident(raise) constant(LLErrorType2)
+				reserved(end)
+			reserved(end)
+		reserved(rescue) constant(LLError)
+			pre_constant(false)
+		reserved(else)
+			pre_constant(true)
+		reserved(end)
+	reserved(end)
+
+ident(private)
+
+	reserved(def) method(first_operator)
+		instance_variable(@first) operator(||=) constant(FirstOperator)operator(.)ident(new) pre_constant(self)
+	reserved(end)
+
+	reserved(def) method(follow_operator)
+		instance_variable(@follow) operator(||=) constant(FollowOperator)operator(.)ident(new) pre_constant(self)
+	reserved(end)
+
+	reserved(def) method(update)
+		instance_variable(@first) operator(=) instance_variable(@follow) operator(=) pre_constant(nil)
+	reserved(end)
+
+reserved(end)
+
+reserved(if) global_variable($0) operator(==) pre_constant(__FILE__)
+  ident(eval) pre_constant(DATA)operator(.)ident(read)operator(,) pre_constant(nil)operator(,) global_variable($0)operator(,) pre_constant(__LINE__)integer(+4)
+reserved(end)
+
+ident(require) string<delimiter(')content(test/unit)delimiter(')>
+
+reserved(class) class(TestCaseGrammar) operator(<) constant(Test)operator(::)constant(Unit)operator(::)constant(TestCase)
+
+	ident(include) constant(Grammar)operator(::)constant(Symbols)
+
+	reserved(def) method(fifo) ident(s)
+		constant(Set)operator([)operator(*)ident(s)operator(.)ident(split)operator(()string<delimiter(')delimiter(')>operator(\))operator(])
+	reserved(end)
+
+	reserved(def) method(test_fifo)
+		ident(assert_equal) constant(Set)operator([)operator(])operator(,) ident(fifo)operator(()string<delimiter(')delimiter(')>operator(\))
+		ident(assert_equal) constant(Set)operator([)constant(EPSILON)operator(,) constant(END_OF_INPUT)operator(,) string<delimiter(')content(x)delimiter(')>operator(,) string<delimiter(')content(Y)delimiter(')>operator(])operator(,) ident(fifo)operator(()string<delimiter(')content(?xY$)delimiter(')>operator(\))
+	reserved(end)
+
+	constant(TEST_GRAMMAR_1) operator(=) string<delimiter(<<-EOG)>string<content(
+S - ABCD
+A - a
+A -
+B - b
+B -
+C - c
+C -
+D - S
+D -)delimiter(
+	EOG)>
+
+	reserved(def) method(test_symbols)
+		ident(assert) constant(EPSILON)
+		ident(assert) constant(END_OF_INPUT)
+	reserved(end)
+
+	reserved(def) method(test_first_1)
+		ident(g) operator(=) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_1)
+
+		ident(f) operator(=) pre_constant(nil)
+		ident(assert_nothing_raised) operator({) ident(f) operator(=) ident(g)operator(.)ident(first) operator(})
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) constant(EPSILON)operator(])operator(,) ident(f)operator([)string<delimiter(')content(A)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(b)delimiter(')>operator(,) constant(EPSILON)operator(])operator(,) ident(f)operator([)string<delimiter(')content(B)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(c)delimiter(')>operator(,) constant(EPSILON)operator(])operator(,) ident(f)operator([)string<delimiter(')content(C)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(b)delimiter(')>operator(,) string<delimiter(')content(c)delimiter(')>operator(,) constant(EPSILON)operator(])operator(,) ident(f)operator([)string<delimiter(')content(D)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()ident(f)operator([)string<delimiter(')content(D)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(S)delimiter(')>operator(])operator(\))
+	reserved(end)
+
+	reserved(def) method(test_follow_1)
+		ident(g) operator(=) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_1)
+
+		ident(f) operator(=) pre_constant(nil)
+		ident(assert_nothing_raised) operator({) ident(f) operator(=) ident(g)operator(.)ident(follow) operator(})
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(b)delimiter(')>operator(,) string<delimiter(')content(c)delimiter(')>operator(,) constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(A)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(b)delimiter(')>operator(,) string<delimiter(')content(c)delimiter(')>operator(,) constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(B)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(b)delimiter(')>operator(,) string<delimiter(')content(c)delimiter(')>operator(,) constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(C)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(D)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(S)delimiter(')>operator(])operator(\))
+	reserved(end)
+
+
+	constant(TEST_GRAMMAR_2) operator(=) string<delimiter(<<-EOG)>string<content(
+S - Ed
+E - EpT
+E - EmT
+E - T
+T - TuF
+T - TdF
+T - F
+F - i
+F - n
+F - aEz)delimiter(
+	EOG)>
+
+	reserved(def) method(test_first_2)
+		ident(g) operator(=) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_2)
+
+		ident(f) operator(=) pre_constant(nil)
+		ident(assert_nothing_raised) operator({) ident(f) operator(=) ident(g)operator(.)ident(first) operator(})
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(n)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(E)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(n)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(F)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(n)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(T)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(n)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(S)delimiter(')>operator(])operator(\))
+	reserved(end)
+
+	reserved(def) method(test_follow_2)
+		ident(g) operator(=) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_2)
+
+		ident(f) operator(=) pre_constant(nil)
+		ident(assert_nothing_raised) operator({) ident(f) operator(=) ident(g)operator(.)ident(follow) operator(})
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(m)delimiter(')>operator(,) string<delimiter(')content(d)delimiter(')>operator(,) string<delimiter(')content(z)delimiter(')>operator(,) string<delimiter(')content(p)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(E)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(m)delimiter(')>operator(,) string<delimiter(')content(d)delimiter(')>operator(,) string<delimiter(')content(z)delimiter(')>operator(,) string<delimiter(')content(p)delimiter(')>operator(,) string<delimiter(')content(u)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(F)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(m)delimiter(')>operator(,) string<delimiter(')content(d)delimiter(')>operator(,) string<delimiter(')content(z)delimiter(')>operator(,) string<delimiter(')content(p)delimiter(')>operator(,) string<delimiter(')content(u)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(T)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(S)delimiter(')>operator(])operator(\))
+	reserved(end)
+
+	constant(LLError) operator(=) constant(Grammar)operator(::)constant(LLError)
+
+	constant(TEST_GRAMMAR_3) operator(=) string<delimiter(<<-EOG)>string<content(
+E - TD
+D - pTD
+D -
+T - FS
+S - uFS
+S -
+S - p
+F - aEz
+F - i)delimiter(
+	EOG)>
+
+	constant(NoError) operator(=) constant(Class)operator(.)ident(new)operator(()constant(Exception)operator(\))
+
+	reserved(def) method(test_first_3)
+		ident(g) operator(=) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_3)
+
+		comment(# Grammar 3 is LL(1\), so all first-sets must be disjoint.)
+		ident(f) operator(=) pre_constant(nil)
+		ident(assert_nothing_raised) operator({) ident(f) operator(=) ident(g)operator(.)ident(first) operator(})
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(E)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)constant(EPSILON)operator(,) string<delimiter(')content(p)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(D)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(F)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(T)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)constant(EPSILON)operator(,) string<delimiter(')content(u)delimiter(')>operator(,) string<delimiter(')content(p)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(S)delimiter(')>operator(])operator(\))
+		reserved(for) ident(m) reserved(in) ident(g)operator(.)ident(meta_symbols)
+			ident(r) operator(=) ident(g)operator(.)ident(rules)operator([)ident(m)operator(])
+			ident(firsts) operator(=) ident(r)operator(.)ident(map) operator({) operator(|)ident(x)operator(|) ident(f)operator([)ident(x)operator(]) operator(})operator(.)ident(to_set)
+			ident(assert_nothing_raised) reserved(do)
+				ident(firsts)operator(.)ident(inject)operator(()constant(Set)operator(.)ident(new)operator(\)) reserved(do) operator(|)ident(already_used)operator(,) ident(another_first_set)operator(|)
+					ident(raise) constant(LLError)operator(,) string<delimiter(')content(not disjoint!)delimiter(')> reserved(unless) ident(already_used)operator(.)ident(disjoint?) ident(another_first_set)
+					ident(already_used)operator(.)ident(merge) ident(another_first_set)
+				reserved(end)
+			reserved(end)
+		reserved(end)
+	reserved(end)
+
+	reserved(def) method(test_follow_3)
+		ident(g) operator(=) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_3)
+
+		comment(# Grammar 3 is not LL(1\), because epsilon is in FIRST(S\),)
+		comment(# but FIRST(S\) and FOLLOW(S\) are not disjoint.)
+		ident(f) operator(=) pre_constant(nil)
+		ident(assert_nothing_raised) operator({) ident(f) operator(=) ident(g)operator(.)ident(follow) operator(})
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(z)delimiter(')>operator(,) constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(E)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(z)delimiter(')>operator(,) constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(D)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(z)delimiter(')>operator(,) string<delimiter(')content(p)delimiter(')>operator(,) string<delimiter(')content(u)delimiter(')>operator(,) constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(F)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(p)delimiter(')>operator(,) string<delimiter(')content(z)delimiter(')>operator(,) constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(T)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(p)delimiter(')>operator(,) string<delimiter(')content(z)delimiter(')>operator(,) constant(END_OF_INPUT)operator(])operator(,) ident(f)operator([)string<delimiter(')content(S)delimiter(')>operator(])operator(\))
+		reserved(for) ident(m) reserved(in) ident(g)operator(.)ident(meta_symbols)
+			ident(first_m) operator(=) ident(g)operator(.)ident(first)operator([)ident(m)operator(])
+			reserved(next) reserved(unless) ident(first_m)operator(.)ident(include?) constant(EPSILON)
+			ident(assert_raise)operator(()ident(m) operator(==) string<delimiter(')content(S)delimiter(')> operator(?) constant(LLError) operator(:) constant(NoError)operator(\)) reserved(do)
+				reserved(if) ident(first_m)operator(.)ident(disjoint?) ident(f)operator([)ident(m)operator(])
+					ident(raise) constant(NoError)  comment(# this is fun :D)
+				reserved(else)
+					ident(raise) constant(LLError)
+				reserved(end)
+			reserved(end)
+		reserved(end)
+	reserved(end)
+
+	constant(TEST_GRAMMAR_3b) operator(=) string<delimiter(<<-EOG)>string<content(
+E - TD
+D - pTD
+D - PTD
+D -
+T - FS
+S - uFS
+S -
+F - aEz
+F - i
+P - p)delimiter(
+	EOG)>
+
+	reserved(def) method(test_first_3b)
+		ident(g) operator(=) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_3b)
+
+		comment(# Grammar 3b is NOT LL(1\), since not all first-sets are disjoint.)
+		ident(f) operator(=) pre_constant(nil)
+		ident(assert_nothing_raised) operator({) ident(f) operator(=) ident(g)operator(.)ident(first) operator(})
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(E)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)constant(EPSILON)operator(,) string<delimiter(')content(p)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(D)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(p)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(P)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(F)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)string<delimiter(')content(a)delimiter(')>operator(,) string<delimiter(')content(i)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(T)delimiter(')>operator(])operator(\))
+		ident(assert_equal)operator(()constant(Set)operator([)constant(EPSILON)operator(,) string<delimiter(')content(u)delimiter(')>operator(])operator(,) ident(f)operator([)string<delimiter(')content(S)delimiter(')>operator(])operator(\))
+		reserved(for) ident(m) reserved(in) ident(g)operator(.)ident(meta_symbols)
+			ident(r) operator(=) ident(g)operator(.)ident(rules)operator([)ident(m)operator(])
+			ident(firsts) operator(=) ident(r)operator(.)ident(map) operator({) operator(|)ident(x)operator(|) ident(f)operator([)ident(x)operator(]) operator(})
+			ident(assert_raise)operator(()ident(m) operator(==) string<delimiter(')content(D)delimiter(')> operator(?) constant(LLError) operator(:) constant(NoError)operator(\)) reserved(do)
+				ident(firsts)operator(.)ident(inject)operator(()constant(Set)operator(.)ident(new)operator(\)) reserved(do) operator(|)ident(already_used)operator(,) ident(another_first_set)operator(|)
+					ident(raise) constant(LLError)operator(,) string<delimiter(')content(not disjoint!)delimiter(')> reserved(unless) ident(already_used)operator(.)ident(disjoint?) ident(another_first_set)
+					ident(already_used)operator(.)ident(merge) ident(another_first_set)
+				reserved(end)
+				ident(raise) constant(NoError)
+			reserved(end)
+		reserved(end)
+	reserved(end)
+
+	reserved(def) method(test_follow_3b)
+		ident(g) operator(=) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_3b)
+
+		comment(# Although Grammar 3b is NOT LL(1\), the FOLLOW-condition is satisfied.)
+		ident(f) operator(=) pre_constant(nil)
+		ident(assert_nothing_raised) operator({) ident(f) operator(=) ident(g)operator(.)ident(follow) operator(})
+		ident(assert_equal)operator(()ident(fifo)operator(()string<delimiter(')content(z$)delimiter(')>operator(\))operator(,) ident(f)operator([)string<delimiter(')content(E)delimiter(')>operator(])operator(,) string<delimiter(')content(E)delimiter(')>operator(\))
+		ident(assert_equal)operator(()ident(fifo)operator(()string<delimiter(')content(z$)delimiter(')>operator(\))operator(,) ident(f)operator([)string<delimiter(')content(D)delimiter(')>operator(])operator(,) string<delimiter(')content(D)delimiter(')>operator(\))
+		ident(assert_equal)operator(()ident(fifo)operator(()string<delimiter(')content(ai)delimiter(')>operator(\))operator(,) ident(f)operator([)string<delimiter(')content(P)delimiter(')>operator(])operator(,) string<delimiter(')content(P)delimiter(')>operator(\))
+		ident(assert_equal)operator(()ident(fifo)operator(()string<delimiter(')content(z$pu)delimiter(')>operator(\))operator(,) ident(f)operator([)string<delimiter(')content(F)delimiter(')>operator(])operator(,) string<delimiter(')content(F)delimiter(')>operator(\))
+		ident(assert_equal)operator(()ident(fifo)operator(()string<delimiter(')content(z$p)delimiter(')>operator(\))operator(,) ident(f)operator([)string<delimiter(')content(T)delimiter(')>operator(])operator(,) string<delimiter(')content(T)delimiter(')>operator(\))
+		ident(assert_equal)operator(()ident(fifo)operator(()string<delimiter(')content(z$p)delimiter(')>operator(\))operator(,) ident(f)operator([)string<delimiter(')content(S)delimiter(')>operator(])operator(,) string<delimiter(')content(S)delimiter(')>operator(\))
+		reserved(for) ident(m) reserved(in) ident(g)operator(.)ident(meta_symbols)
+			ident(first_m) operator(=) ident(g)operator(.)ident(first)operator([)ident(m)operator(])
+			reserved(next) reserved(unless) ident(first_m)operator(.)ident(include?) constant(EPSILON)
+			ident(assert_raise)operator(()constant(NoError)operator(\)) reserved(do)
+				reserved(if) ident(first_m)operator(.)ident(disjoint?) ident(f)operator([)ident(m)operator(])
+					ident(raise) constant(NoError)  comment(# this is fun :D)
+				reserved(else)
+					ident(raise) constant(LLError)
+				reserved(end)
+			reserved(end)
+		reserved(end)
+	reserved(end)
+
+	reserved(def) method(test_ll1?)
+		ident(assert_equal) pre_constant(false)operator(,) constant(Grammar)operator(.)ident(new)operator(()constant(TEST_GRAMMAR_3)operator(\))operator(.)ident(ll1?)operator(,) string<delimiter(')content(Grammar 3)delimiter(')>
+		ident(assert_equal) pre_constant(false)operator(,) constant(Grammar)operator(.)ident(new)operator(()constant(TEST_GRAMMAR_3b)operator(\))operator(.)ident(ll1?)operator(,) string<delimiter(')content(Grammar 3b)delimiter(')>
+	reserved(end)
+
+	reserved(def) method(test_new)
+		ident(assert_nothing_raised) operator({) constant(Grammar)operator(.)ident(new) string<delimiter(')delimiter(')> operator(})
+		ident(assert_nothing_raised) operator({) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_1) operator(})
+		ident(assert_nothing_raised) operator({) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_2) operator(})
+		ident(assert_nothing_raised) operator({) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_3) operator(})
+		ident(assert_nothing_raised) operator({) constant(Grammar)operator(.)ident(new) constant(TEST_GRAMMAR_1) operator(+) constant(TEST_GRAMMAR_2) operator(+) constant(TEST_GRAMMAR_3) operator(})
+		ident(assert_raise)operator(()constant(ArgumentError)operator(\)) operator({) constant(Grammar)operator(.)ident(new) string<delimiter(')content(S - ?)delimiter(')> operator(})
+	reserved(end)
+reserved(end)
+
+comment(# vim:foldmethod=syntax)
+
+comment(#!/usr/bin/env ruby)
+
+ident(require) string<delimiter(')content(fox12)delimiter(')>
+
+ident(include) constant(Fox)
+
+reserved(class) class(Window) operator(<) constant(FXMainWindow)
+	reserved(def) method(initialize)operator(()ident(app)operator(\))
+		reserved(super)operator(()ident(app)operator(,) ident(app)operator(.)ident(appName) operator(+) string<delimiter(")content(: First Set Calculation)delimiter(")>operator(,) pre_constant(nil)operator(,) pre_constant(nil)operator(,) constant(DECOR_ALL)operator(,) integer(0)operator(,) integer(0)operator(,) integer(800)operator(,) integer(600)operator(,) integer(0)operator(,) integer(0)operator(\))
+
+		comment(# {{{ menubar)
+		ident(menubar) operator(=) constant(FXMenuBar)operator(.)ident(new)operator(()pre_constant(self)operator(,) constant(LAYOUT_SIDE_TOP)operator(|)constant(LAYOUT_FILL_X)operator(\))
+
+		ident(filemenu) operator(=) constant(FXMenuPane)operator(.)ident(new)operator(()pre_constant(self)operator(\))
+
+		constant(FXMenuCommand)operator(.)ident(new)operator(()ident(filemenu)operator(,) string<delimiter(")content(&Start)char(\\t)content(Ctl-S)char(\\t)content(Start the application.)delimiter(")>operator(,) pre_constant(nil)operator(,) ident(getApp)operator(()operator(\))operator(\))operator(.)ident(connect)operator(()constant(SEL_COMMAND)operator(,) ident(method)operator(()symbol(:start)operator(\))operator(\))
+		constant(FXMenuCommand)operator(.)ident(new)operator(()ident(filemenu)operator(,) string<delimiter(")content(&Quit)char(\\t)content(Alt-F4)char(\\t)content(Quit the application.)delimiter(")>operator(,) pre_constant(nil)operator(,) ident(getApp)operator(()operator(\))operator(,) constant(FXApp)operator(::)constant(ID_QUIT)operator(\))
+		constant(FXMenuTitle)operator(.)ident(new)operator(()ident(menubar)operator(,) string<delimiter(")content(&File)delimiter(")>operator(,) pre_constant(nil)operator(,) ident(filemenu)operator(\))
+		comment(# }}} menubar)
+
+		comment(# {{{ statusbar)
+		instance_variable(@statusbar) operator(=) constant(FXStatusBar)operator(.)ident(new)operator(()pre_constant(self)operator(,) constant(LAYOUT_SIDE_BOTTOM)operator(|)constant(LAYOUT_FILL_X)operator(|)constant(STATUSBAR_WITH_DRAGCORNER)operator(\))
+		comment(# }}} statusbar)
+
+		comment(# {{{ window content)
+		ident(horizontalsplitt) operator(=) constant(FXSplitter)operator(.)ident(new)operator(()pre_constant(self)operator(,) constant(SPLITTER_VERTICAL)operator(|)constant(LAYOUT_SIDE_TOP)operator(|)constant(LAYOUT_FILL)operator(\))
+
+
+		instance_variable(@productions) operator(=) constant(FXList)operator(.)ident(new)operator(()ident(horizontalsplitt)operator(,) pre_constant(nil)operator(,) integer(0)operator(,) constant(LAYOUT_SIDE_TOP)operator(|)constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_FIX_HEIGHT)operator(|)constant(LIST_SINGLESELECT)operator(\))
+		instance_variable(@productions)operator(.)ident(height) operator(=) integer(100)
+
+		instance_variable(@result) operator(=) constant(FXTable)operator(.)ident(new)operator(()ident(horizontalsplitt)operator(,) pre_constant(nil)operator(,) integer(0)operator(,) constant(LAYOUT_FILL)operator(\))
+		instance_variable(@result)operator(.)ident(height) operator(=) integer(200)
+		instance_variable(@result)operator(.)ident(setTableSize)operator(()integer(2)operator(,) integer(2)operator(,) pre_constant(false)operator(\))
+		instance_variable(@result)operator(.)ident(rowHeaderWidth) operator(=) integer(0)
+
+		ident(header) operator(=) instance_variable(@result)operator(.)ident(columnHeader)
+		ident(header)operator(.)ident(setItemText) integer(0)operator(,) string<delimiter(')content(X)delimiter(')>
+		ident(header)operator(.)ident(setItemText) integer(1)operator(,) string<delimiter(')content(FIRST(X\))delimiter(')>
+		reserved(for) ident(item) reserved(in) ident(header)
+			ident(item)operator(.)ident(justification) operator(=) constant(FXHeaderItem)operator(::)constant(CENTER_X)
+		reserved(end)
+
+		instance_variable(@debug) operator(=) constant(FXText)operator(.)ident(new)operator(()ident(horizontalsplitt)operator(,) pre_constant(nil)operator(,) integer(0)operator(,) constant(LAYOUT_SIDE_BOTTOM)operator(|)constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_FIX_HEIGHT)operator(\))
+		instance_variable(@debug)operator(.)ident(height) operator(=) integer(200)
+
+		comment(# }}} window content)
+	reserved(end)
+
+	reserved(def) method(load_grammar) ident(grammar)
+		instance_variable(@tracer) operator(=) constant(FirstTracer)operator(.)ident(new)operator(()pre_constant(self)operator(\))
+		instance_variable(@grammar) operator(=) constant(Grammar)operator(.)ident(new) ident(grammar)operator(,) instance_variable(@tracer)
+		instance_variable(@rules_indexes) operator(=) constant(Hash)operator(.)ident(new)
+		instance_variable(@grammar)operator(.)ident(rules)operator(.)ident(each_with_index) reserved(do) operator(|)ident(rule)operator(,) ident(i)operator(|)
+			instance_variable(@productions)operator(.)ident(appendItem) ident(rule)operator(.)ident(inspect)
+			instance_variable(@rules_indexes)operator([)ident(rule)operator(]) operator(=) ident(i)
+		reserved(end)
+	reserved(end)
+
+	reserved(def) method(create)
+		reserved(super)
+		ident(show)operator(()constant(PLACEMENT_SCREEN)operator(\))
+	reserved(end)
+
+	reserved(def) method(rule) ident(rule)
+		instance_variable(@productions)operator(.)ident(selectItem) instance_variable(@rules_indexes)operator([)ident(rule)operator(])
+		ident(sleep) float(0.1)
+	reserved(end)
+
+	reserved(def) method(iterate) ident(i)
+		ident(setTitle) ident(i)operator(.)ident(to_s)
+		ident(sleep) float(0.1)
+	reserved(end)
+
+	reserved(def) method(missing) ident(what)
+		instance_variable(@debug)operator(.)ident(appendText) ident(what) operator(+) string<delimiter(")char(\\n)delimiter(")>
+		ident(sleep) float(0.1)
+	reserved(end)
+
+	reserved(def) method(start) ident(sender)operator(,) ident(sel)operator(,) ident(pointer)
+		constant(Thread)operator(.)ident(new) reserved(do)
+			reserved(begin)
+				instance_variable(@grammar)operator(.)ident(first)
+			reserved(rescue) operator(=)operator(>) ident(boom)
+				instance_variable(@debug)operator(.)ident(appendText) operator([)ident(boom)operator(.)ident(to_s)operator(,) operator(*)ident(boom)operator(.)ident(backtrace)operator(])operator(.)ident(join)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))
+			reserved(end)
+		reserved(end)
+	reserved(end)
+
+reserved(end)
+
+global_variable($:) operator(<<) string<delimiter(')content(grammar)delimiter(')>
+ident(require) string<delimiter(')content(grammar)delimiter(')>
+
+ident(require) string<delimiter(')content(first_tracer)delimiter(')>
+
+ident(app) operator(=) constant(FXApp)operator(.)ident(new)operator(()string<delimiter(")content(Shinobu)delimiter(")>operator(,) string<delimiter(")content(cYcnus)delimiter(")>operator(\))
+
+comment(# fenster erzeugen)
+ident(window) operator(=) constant(Window)operator(.)ident(new) ident(app)
+
+reserved(unless) pre_constant(ARGV)operator(.)ident(empty?)
+	ident(grammar) operator(=) constant(File)operator(.)ident(read)operator(()pre_constant(ARGV)operator(.)ident(first)operator(\))
+reserved(else)
+	ident(grammar) operator(=) string<delimiter(<<-EOG1)>string<content(
+Z --> S
+S --> Sb
+S --> bAa
+A --> aSc
+A --> a
+A --> aSb)delimiter(
+	EOG1)>
+reserved(end)
+
+ident(window)operator(.)ident(load_grammar) ident(grammar)
+
+ident(app)operator(.)ident(create)
+ident(app)operator(.)ident(run)
+
+ident(require) string<delimiter(')content(erb)delimiter(')>
+ident(require) string<delimiter(')content(ftools)delimiter(')>
+ident(require) string<delimiter(')content(yaml)delimiter(')>
+ident(require) string<delimiter(')content(redcloth)delimiter(')>
+
+reserved(module) class(WhyTheLuckyStiff)
+	reserved(class) class(Book)
+		ident(attr_accessor) symbol(:author)operator(,) symbol(:title)operator(,) symbol(:terms)operator(,) symbol(:image)operator(,) symbol(:teaser)operator(,)
+			symbol(:chapters)operator(,) symbol(:expansion_paks)operator(,) symbol(:encoding)operator(,) symbol(:credits)
+		reserved(def) method([]) ident(x)
+			instance_variable(@lang)operator(.)ident(fetch)operator(()ident(x)operator(\)) reserved(do)
+				ident(warn) ident(warning) operator(=) string<delimiter(")content([not translated: ')inline<delimiter(#{)ident(x)delimiter(})>content('!])delimiter(")>
+				ident(warning)
+			reserved(end)
+		reserved(end)
+	reserved(end)
+
+	reserved(def) constant(Book)operator(::)ident(load)operator(() ident(file_name) operator(\))
+		constant(YAML)operator(::)ident(load)operator(() constant(File)operator(.)ident(open)operator(() ident(file_name) operator(\)) operator(\))
+	reserved(end)
+
+	reserved(class) class(Section)
+		ident(attr_accessor) symbol(:index)operator(,) symbol(:header)operator(,) symbol(:content)
+		reserved(def) method(initialize)operator(() ident(i)operator(,) ident(h)operator(,) ident(c) operator(\))
+			instance_variable(@index)operator(,) instance_variable(@header)operator(,) instance_variable(@content) operator(=) ident(i)operator(,) ident(h)operator(,) constant(RedCloth)operator(::)ident(new)operator(() ident(c)operator(.)ident(to_s) operator(\))
+		reserved(end)
+	reserved(end)
+
+	reserved(class) class(Sidebar)
+		ident(attr_accessor) symbol(:title)operator(,) symbol(:content)
+	reserved(end)
+
+	constant(YAML)operator(::)ident(add_domain_type)operator(() string<delimiter(')content(whytheluckystiff.net,2003)delimiter(')>operator(,) string<delimiter(')content(sidebar)delimiter(')> operator(\)) reserved(do) operator(|)ident(taguri)operator(,) ident(val)operator(|)
+		constant(YAML)operator(::)ident(object_maker)operator(() constant(Sidebar)operator(,) string<delimiter(')content(title)delimiter(')> operator(=)operator(>) ident(val)operator(.)ident(keys)operator(.)ident(first)operator(,) string<delimiter(')content(content)delimiter(')> operator(=)operator(>) constant(RedCloth)operator(::)ident(new)operator(() ident(val)operator(.)ident(values)operator(.)ident(first) operator(\)) operator(\))
+	reserved(end)
+	reserved(class) class(Chapter)
+		ident(attr_accessor) symbol(:index)operator(,) symbol(:title)operator(,) symbol(:sections)
+		reserved(def) method(initialize)operator(() ident(i)operator(,) ident(t)operator(,) ident(sects) operator(\))
+			instance_variable(@index) operator(=) ident(i)
+			instance_variable(@title) operator(=) ident(t)
+			ident(i) operator(=) integer(0)
+			instance_variable(@sections) operator(=) ident(sects)operator(.)ident(collect) reserved(do) operator(|)ident(s)operator(|)
+				reserved(if) ident(s)operator(.)ident(respond_to?)operator(() symbol(:keys) operator(\))
+					ident(i) operator(+=) integer(1)
+					constant(Section)operator(.)ident(new)operator(() ident(i)operator(,) ident(s)operator(.)ident(keys)operator(.)ident(first)operator(,) ident(s)operator(.)ident(values)operator(.)ident(first) operator(\))
+				reserved(else)
+					ident(s)
+				reserved(end)
+			reserved(end)
+		reserved(end)
+	reserved(end)
+
+	constant(YAML)operator(::)ident(add_domain_type)operator(() string<delimiter(')content(whytheluckystiff.net,2003)delimiter(')>operator(,) string<delimiter(')content(book)delimiter(')> operator(\)) reserved(do) operator(|)ident(taguri)operator(,) ident(val)operator(|)
+		operator([)string<delimiter(')content(chapters)delimiter(')>operator(,) string<delimiter(')content(expansion_paks)delimiter(')>operator(])operator(.)ident(each) reserved(do) operator(|)ident(chaptype)operator(|)
+			ident(i) operator(=) integer(0)
+			ident(val)operator([)ident(chaptype)operator(])operator(.)ident(collect!) reserved(do) operator(|)ident(c)operator(|)
+				ident(i) operator(+=) integer(1)
+				constant(Chapter)operator(::)ident(new)operator(() ident(i)operator(,) ident(c)operator(.)ident(keys)operator(.)ident(first)operator(,) ident(c)operator(.)ident(values)operator(.)ident(first) operator(\))
+			reserved(end)
+		reserved(end)
+		ident(val)operator([)string<delimiter(')content(teaser)delimiter(')>operator(])operator(.)ident(collect!) reserved(do) operator(|)ident(t)operator(|)
+			constant(Section)operator(::)ident(new)operator(() integer(1)operator(,) ident(t)operator(.)ident(keys)operator(.)ident(first)operator(,) ident(t)operator(.)ident(values)operator(.)ident(first) operator(\))
+		reserved(end)
+		ident(val)operator([)string<delimiter(')content(terms)delimiter(')>operator(]) operator(=) constant(RedCloth)operator(::)ident(new)operator(() ident(val)operator([)string<delimiter(')content(terms)delimiter(')>operator(]) operator(\))
+		constant(YAML)operator(::)ident(object_maker)operator(() constant(Book)operator(,) ident(val) operator(\))
+	reserved(end)
+
+	reserved(class) class(Image)
+		ident(attr_accessor) symbol(:file_name)
+	reserved(end)
+
+	constant(YAML)operator(::)ident(add_domain_type)operator(() string<delimiter(')content(whytheluckystiff.net,2003)delimiter(')>operator(,) string<delimiter(')content(img)delimiter(')> operator(\)) reserved(do) operator(|)ident(taguri)operator(,) ident(val)operator(|)
+		constant(YAML)operator(::)ident(object_maker)operator(() constant(Image)operator(,) string<delimiter(')content(file_name)delimiter(')> operator(=)operator(>) string<delimiter(")content(i/)delimiter(")> operator(+) ident(val) operator(\))
+	reserved(end)
+reserved(end)
+
+comment(#)
+comment(# Convert the book to HTML)
+comment(#)
+reserved(if) pre_constant(__FILE__) operator(==) global_variable($0)
+	reserved(unless) pre_constant(ARGV)operator([)integer(0)operator(])
+		ident(puts) string<delimiter(")content(Usage: )inline<delimiter(#{)global_variable($0)delimiter(})>content( [/path/to/save/html])delimiter(")>
+		ident(exit)
+	reserved(end)
+
+	ident(site_path) operator(=) pre_constant(ARGV)operator([)integer(0)operator(])
+	ident(book) operator(=) constant(WhyTheLuckyStiff)operator(::)constant(Book)operator(::)ident(load)operator(() string<delimiter(')content(poignant.yml)delimiter(')> operator(\))
+	ident(chapter) operator(=) pre_constant(nil)
+
+	comment(# Write index page)
+	ident(index_tpl) operator(=) constant(ERB)operator(::)ident(new)operator(() constant(File)operator(.)ident(open)operator(() string<delimiter(')content(index.erb)delimiter(')> operator(\))operator(.)ident(read) operator(\))
+	constant(File)operator(.)ident(open)operator(() constant(File)operator(.)ident(join)operator(() ident(site_path)operator(,) string<delimiter(')content(index.html)delimiter(')> operator(\))operator(,) string<delimiter(')content(w)delimiter(')> operator(\)) reserved(do) operator(|)ident(out)operator(|)
+		ident(out) operator(<<) ident(index_tpl)operator(.)ident(result)
+	reserved(end)
+
+	ident(book)operator(.)ident(chapters) operator(=) ident(book)operator(.)ident(chapters)operator([)integer(0)operator(,)integer(3)operator(]) reserved(if) pre_constant(ARGV)operator(.)ident(include?) string<delimiter(')content(-fast)delimiter(')>
+
+	comment(# Write chapter pages)
+	ident(chapter_tpl) operator(=) constant(ERB)operator(::)ident(new)operator(() constant(File)operator(.)ident(open)operator(() string<delimiter(')content(chapter.erb)delimiter(')> operator(\))operator(.)ident(read) operator(\))
+	ident(book)operator(.)ident(chapters)operator(.)ident(each) reserved(do) operator(|)ident(chapter)operator(|)
+		constant(File)operator(.)ident(open)operator(() constant(File)operator(.)ident(join)operator(() ident(site_path)operator(,) string<delimiter(")content(chapter-)inline<delimiter(#{) ident(chapter)operator(.)ident(index) delimiter(})>content(.html)delimiter(")> operator(\))operator(,) string<delimiter(')content(w)delimiter(')> operator(\)) reserved(do) operator(|)ident(out)operator(|)
+			ident(out) operator(<<) ident(chapter_tpl)operator(.)ident(result)
+		reserved(end)
+	reserved(end)
+	ident(exit) reserved(if) pre_constant(ARGV)operator(.)ident(include?) string<delimiter(')content(-fast)delimiter(')>
+
+	comment(# Write expansion pak pages)
+	ident(expak_tpl) operator(=) constant(ERB)operator(::)ident(new)operator(() constant(File)operator(.)ident(open)operator(() string<delimiter(')content(expansion-pak.erb)delimiter(')> operator(\))operator(.)ident(read) operator(\))
+	ident(book)operator(.)ident(expansion_paks)operator(.)ident(each) reserved(do) operator(|)ident(pak)operator(|)
+		constant(File)operator(.)ident(open)operator(() constant(File)operator(.)ident(join)operator(() ident(site_path)operator(,) string<delimiter(")content(expansion-pak-)inline<delimiter(#{) ident(pak)operator(.)ident(index) delimiter(})>content(.html)delimiter(")> operator(\))operator(,) string<delimiter(')content(w)delimiter(')> operator(\)) reserved(do) operator(|)ident(out)operator(|)
+			ident(out) operator(<<) ident(expak_tpl)operator(.)ident(result)operator(() ident(binding) operator(\))
+		reserved(end)
+	reserved(end)
+
+	comment(# Write printable version)
+	ident(print_tpl) operator(=) constant(ERB)operator(::)ident(new)operator(() constant(File)operator(.)ident(open)operator(() string<delimiter(')content(print.erb)delimiter(')> operator(\))operator(.)ident(read) operator(\))
+	constant(File)operator(.)ident(open)operator(() constant(File)operator(.)ident(join)operator(() ident(site_path)operator(,) string<delimiter(")content(print.html)delimiter(")> operator(\))operator(,) string<delimiter(')content(w)delimiter(')> operator(\)) reserved(do) operator(|)ident(out)operator(|)
+		ident(out) operator(<<) ident(print_tpl)operator(.)ident(result)
+	reserved(end)
+
+	comment(# Copy css + images into site)
+	ident(copy_list) operator(=) operator([)string<delimiter(")content(guide.css)delimiter(")>operator(]) operator(+)
+		constant(Dir)operator([)string<delimiter(")content(i/*)delimiter(")>operator(])operator(.)ident(find_all) operator({) operator(|)ident(image)operator(|) ident(image) operator(=)operator(~) regexp<delimiter(/)char(\\.)content((gif|jpg|png\)$)delimiter(/)> operator(})
+
+	constant(File)operator(.)ident(makedirs)operator(() constant(File)operator(.)ident(join)operator(() ident(site_path)operator(,) string<delimiter(")content(i)delimiter(")> operator(\)) operator(\))
+	ident(copy_list)operator(.)ident(each) reserved(do) operator(|)ident(copy_file)operator(|)
+		constant(File)operator(.)ident(copy)operator(() ident(copy_file)operator(,) constant(File)operator(.)ident(join)operator(() ident(site_path)operator(,) ident(copy_file) operator(\)) operator(\))
+	reserved(end)
+reserved(end)
+
+comment(#!/usr/bin/env ruby)
+
+ident(require) string<delimiter(')content(fox)delimiter(')>
+reserved(begin)
+  ident(require) string<delimiter(')content(opengl)delimiter(')>
+reserved(rescue) constant(LoadError)
+  ident(require) string<delimiter(')content(fox/missingdep)delimiter(')>
+  constant(MSG) operator(=) string<delimiter(<<EOM)>string<content(
+  Sorry, this example depends on the OpenGL extension. Please
+  check the Ruby Application Archives for an appropriate
+  download site.)delimiter(
+EOM)>
+  ident(missingDependency)operator(()constant(MSG)operator(\))
+reserved(end)
+
+
+ident(include) constant(Fox)
+ident(include) constant(Math)
+
+constant(Deg2Rad) operator(=) constant(Math)operator(::)constant(PI) operator(/) integer(180)
+
+constant(D_MAX) operator(=) integer(6)
+constant(SQUARE_SIZE) operator(=) float(2.0) operator(/) constant(D_MAX)
+constant(SQUARE_DISTANCE) operator(=) float(4.0) operator(/) constant(D_MAX)
+constant(AMPLITUDE) operator(=) constant(SQUARE_SIZE)
+constant(LAMBDA) operator(=) constant(D_MAX)operator(.)ident(to_f) operator(/) integer(2)
+
+reserved(class) class(GLTestWindow) operator(<) constant(FXMainWindow)
+
+  comment(# How often our timer will fire (in milliseconds\))
+  constant(TIMER_INTERVAL) operator(=) integer(500)
+
+  comment(# Rotate the boxes when a timer message is received)
+  reserved(def) method(onTimeout)operator(()ident(sender)operator(,) ident(sel)operator(,) ident(ptr)operator(\))
+    instance_variable(@angle) operator(+=) float(10.0)
+comment(#    @size = 0.5 + 0.2 * Math.cos(Deg2Rad * @angle\))
+    ident(drawScene)operator(()operator(\))
+    instance_variable(@timer) operator(=) ident(getApp)operator(()operator(\))operator(.)ident(addTimeout)operator(()constant(TIMER_INTERVAL)operator(,) ident(method)operator(()symbol(:onTimeout)operator(\))operator(\))
+  reserved(end)
+
+  comment(# Rotate the boxes when a chore message is received)
+  reserved(def) method(onChore)operator(()ident(sender)operator(,) ident(sel)operator(,) ident(ptr)operator(\))
+    instance_variable(@angle) operator(+=) float(10.0)
+comment(#    @angle %= 360.0)
+comment(#    @size = 0.5 + 0.2 * Math.cos(Deg2Rad * @angle\))
+    ident(drawScene)operator(()operator(\))
+    instance_variable(@chore) operator(=) ident(getApp)operator(()operator(\))operator(.)ident(addChore)operator(()ident(method)operator(()symbol(:onChore)operator(\))operator(\))
+  reserved(end)
+
+  comment(# Draw the GL scene)
+  reserved(def) method(drawScene)
+    ident(lightPosition) operator(=) operator([)float(15.0)operator(,) float(10.0)operator(,) float(5.0)operator(,) float(1.0)operator(])
+    ident(lightAmbient)  operator(=) operator([) float(0.1)operator(,)  float(0.1)operator(,) float(0.1)operator(,) float(1.0)operator(])
+    ident(lightDiffuse)  operator(=) operator([) float(0.9)operator(,)  float(0.9)operator(,) float(0.9)operator(,) float(1.0)operator(])
+    ident(redMaterial)   operator(=) operator([) float(0.0)operator(,)  float(0.0)operator(,) float(1.0)operator(,) float(1.0)operator(])
+    ident(blueMaterial)  operator(=) operator([) float(0.0)operator(,)  float(1.0)operator(,) float(0.0)operator(,) float(1.0)operator(])
+
+    ident(width) operator(=) instance_variable(@glcanvas)operator(.)ident(width)operator(.)ident(to_f)
+    ident(height) operator(=) instance_variable(@glcanvas)operator(.)ident(height)operator(.)ident(to_f)
+    ident(aspect) operator(=) ident(width)operator(/)ident(height)
+
+    comment(# Make context current)
+    instance_variable(@glcanvas)operator(.)ident(makeCurrent)operator(()operator(\))
+
+    constant(GL)operator(.)ident(Viewport)operator(()integer(0)operator(,) integer(0)operator(,) instance_variable(@glcanvas)operator(.)ident(width)operator(,) instance_variable(@glcanvas)operator(.)ident(height)operator(\))
+
+    constant(GL)operator(.)ident(ClearColor)operator(()float(1.0)operator(/)integer(256)operator(,) float(0.0)operator(,) float(5.0)operator(/)integer(256)operator(,) float(1.0)operator(\))
+    constant(GL)operator(.)ident(Clear)operator(()constant(GL)operator(::)constant(COLOR_BUFFER_BIT)operator(|)constant(GL)operator(::)constant(DEPTH_BUFFER_BIT)operator(\))
+    constant(GL)operator(.)ident(Enable)operator(()constant(GL)operator(::)constant(DEPTH_TEST)operator(\))
+
+    constant(GL)operator(.)ident(Disable)operator(()constant(GL)operator(::)constant(DITHER)operator(\))
+
+    constant(GL)operator(.)ident(MatrixMode)operator(()constant(GL)operator(::)constant(PROJECTION)operator(\))
+    constant(GL)operator(.)ident(LoadIdentity)operator(()operator(\))
+    constant(GLU)operator(.)ident(Perspective)operator(()float(30.0)operator(,) ident(aspect)operator(,) float(1.0)operator(,) float(100.0)operator(\))
+
+    constant(GL)operator(.)ident(MatrixMode)operator(()constant(GL)operator(::)constant(MODELVIEW)operator(\))
+    constant(GL)operator(.)ident(LoadIdentity)operator(()operator(\))
+    constant(GLU)operator(.)ident(LookAt)operator(()float(5.0)operator(,) float(10.0)operator(,) float(15.0)operator(,) float(0.0)operator(,) float(0.0)operator(,) float(0.0)operator(,) float(0.0)operator(,) float(1.0)operator(,) float(0.0)operator(\))
+
+    constant(GL)operator(.)ident(ShadeModel)operator(()constant(GL)operator(::)constant(SMOOTH)operator(\))
+    constant(GL)operator(.)ident(Light)operator(()constant(GL)operator(::)constant(LIGHT0)operator(,) constant(GL)operator(::)constant(POSITION)operator(,) ident(lightPosition)operator(\))
+    constant(GL)operator(.)ident(Light)operator(()constant(GL)operator(::)constant(LIGHT0)operator(,) constant(GL)operator(::)constant(AMBIENT)operator(,) ident(lightAmbient)operator(\))
+    constant(GL)operator(.)ident(Light)operator(()constant(GL)operator(::)constant(LIGHT0)operator(,) constant(GL)operator(::)constant(DIFFUSE)operator(,) ident(lightDiffuse)operator(\))
+    constant(GL)operator(.)ident(Enable)operator(()constant(GL)operator(::)constant(LIGHT0)operator(\))
+    constant(GL)operator(.)ident(Enable)operator(()constant(GL)operator(::)constant(LIGHTING)operator(\))
+
+    constant(GL)operator(.)ident(Rotated)operator(()float(0.1)operator(*)instance_variable(@angle)operator(,) float(0.0)operator(,) float(1.0)operator(,) float(0.0)operator(\))
+    reserved(for) ident(x) reserved(in) operator(-)constant(D_MAX)operator(..)constant(D_MAX)
+      reserved(for) ident(y) reserved(in) operator(-)constant(D_MAX)operator(..)constant(D_MAX)
+        ident(h1) operator(=) operator(()ident(x) operator(+) ident(y) operator(-) integer(2)operator(\))operator(.)ident(abs)
+        ident(h2) operator(=) operator(()ident(y) operator(-) ident(x) operator(+) integer(1)operator(\))operator(.)ident(abs)
+        constant(GL)operator(.)constant(PushMatrix)
+        ident(c) operator(=) operator([)integer(1)operator(,) integer(0)operator(,) integer(0)operator(,) integer(1)operator(])
+        constant(GL)operator(.)ident(Material)operator(()constant(GL)operator(::)constant(FRONT)operator(,) constant(GL)operator(::)constant(AMBIENT)operator(,) ident(c)operator(\))
+        constant(GL)operator(.)ident(Material)operator(()constant(GL)operator(::)constant(FRONT)operator(,) constant(GL)operator(::)constant(DIFFUSE)operator(,) ident(c)operator(\))
+
+        constant(GL)operator(.)ident(Translated)operator(()
+          ident(y) operator(*) constant(SQUARE_DISTANCE)operator(,)
+          constant(AMPLITUDE) operator(*) ident(h1)operator(,)
+          ident(x) operator(*) constant(SQUARE_DISTANCE)
+        operator(\))
+
+        constant(GL)operator(.)ident(Begin)operator(()constant(GL)operator(::)constant(TRIANGLE_STRIP)operator(\))
+          constant(GL)operator(.)ident(Normal)operator(()float(1.0)operator(,) float(0.0)operator(,) float(0.0)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(-)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(-)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(-)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(-)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(\))
+        constant(GL)operator(.)constant(End)
+
+        constant(GL)operator(.)constant(PopMatrix)
+
+        constant(GL)operator(.)constant(PushMatrix)
+        ident(c) operator(=) operator([)integer(0)operator(,) integer(0)operator(,) integer(1)operator(,) integer(1)operator(])
+        constant(GL)operator(.)ident(Material)operator(()constant(GL)operator(::)constant(FRONT)operator(,) constant(GL)operator(::)constant(AMBIENT)operator(,) ident(c)operator(\))
+        constant(GL)operator(.)ident(Material)operator(()constant(GL)operator(::)constant(FRONT)operator(,) constant(GL)operator(::)constant(DIFFUSE)operator(,) ident(c)operator(\))
+
+        constant(GL)operator(.)ident(Translated)operator(()
+          ident(y) operator(*) constant(SQUARE_DISTANCE)operator(,)
+          constant(AMPLITUDE) operator(*) ident(h2)operator(,)
+          ident(x) operator(*) constant(SQUARE_DISTANCE)
+        operator(\))
+
+        constant(GL)operator(.)ident(Begin)operator(()constant(GL)operator(::)constant(TRIANGLE_STRIP)operator(\))
+          constant(GL)operator(.)ident(Normal)operator(()float(1.0)operator(,) float(0.0)operator(,) float(0.0)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(-)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(-)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(-)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(-)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(\))
+        constant(GL)operator(.)constant(End)
+
+        constant(GL)operator(.)constant(PopMatrix)
+
+        constant(GL)operator(.)constant(PushMatrix)
+        ident(c) operator(=) operator([)float(0.0) operator(+) operator(()ident(x)operator(/)float(10.0)operator(\))operator(,) float(0.0) operator(+) operator(()ident(y)operator(/)float(10.0)operator(\))operator(,) integer(0)operator(,) integer(1)operator(])
+        constant(GL)operator(.)ident(Material)operator(()constant(GL)operator(::)constant(FRONT)operator(,) constant(GL)operator(::)constant(AMBIENT)operator(,) ident(c)operator(\))
+        constant(GL)operator(.)ident(Material)operator(()constant(GL)operator(::)constant(FRONT)operator(,) constant(GL)operator(::)constant(DIFFUSE)operator(,) ident(c)operator(\))
+
+        constant(GL)operator(.)ident(Translated)operator(()
+          ident(y) operator(*) constant(SQUARE_DISTANCE)operator(,)
+          integer(0)operator(,)
+          ident(x) operator(*) constant(SQUARE_DISTANCE)
+        operator(\))
+
+        constant(GL)operator(.)ident(Begin)operator(()constant(GL)operator(::)constant(TRIANGLE_STRIP)operator(\))
+          constant(GL)operator(.)ident(Normal)operator(()float(1.0)operator(,) float(0.0)operator(,) float(0.0)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(-)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(-)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(-)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(-)constant(SQUARE_SIZE)operator(\))
+          constant(GL)operator(.)ident(Vertex)operator(()operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(,) operator(+)constant(SQUARE_SIZE)operator(\))
+        constant(GL)operator(.)constant(End)
+
+        constant(GL)operator(.)constant(PopMatrix)
+      reserved(end)
+    reserved(end)
+
+    comment(# Swap if it is double-buffered)
+    reserved(if) instance_variable(@glvisual)operator(.)ident(isDoubleBuffer)
+      instance_variable(@glcanvas)operator(.)ident(swapBuffers)
+    reserved(end)
+
+    comment(# Make context non-current)
+    instance_variable(@glcanvas)operator(.)ident(makeNonCurrent)
+  reserved(end)
+
+  reserved(def) method(initialize)operator(()ident(app)operator(\))
+    comment(# Invoke the base class initializer)
+    reserved(super)operator(()ident(app)operator(,) string<delimiter(")content(OpenGL Test Application)delimiter(")>operator(,) pre_constant(nil)operator(,) pre_constant(nil)operator(,) constant(DECOR_ALL)operator(,) integer(0)operator(,) integer(0)operator(,) integer(1024)operator(,) integer(768)operator(\))
+
+    comment(# Construct the main window elements)
+    ident(frame) operator(=) constant(FXHorizontalFrame)operator(.)ident(new)operator(()pre_constant(self)operator(,) constant(LAYOUT_SIDE_TOP)operator(|)constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_FILL_Y)operator(\))
+    ident(frame)operator(.)ident(padLeft)operator(,) ident(frame)operator(.)ident(padRight) operator(=) integer(0)operator(,) integer(0)
+    ident(frame)operator(.)ident(padTop)operator(,) ident(frame)operator(.)ident(padBottom) operator(=) integer(0)operator(,) integer(0)
+
+    comment(# Left pane to contain the glcanvas)
+    ident(glcanvasFrame) operator(=) constant(FXVerticalFrame)operator(.)ident(new)operator(()ident(frame)operator(,)
+      constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_FILL_Y)operator(|)constant(LAYOUT_TOP)operator(|)constant(LAYOUT_LEFT)operator(\))
+    ident(glcanvasFrame)operator(.)ident(padLeft)operator(,) ident(glcanvasFrame)operator(.)ident(padRight) operator(=) integer(10)operator(,) integer(10)
+    ident(glcanvasFrame)operator(.)ident(padTop)operator(,) ident(glcanvasFrame)operator(.)ident(padBottom) operator(=) integer(10)operator(,) integer(10)
+
+    comment(# Label above the glcanvas)
+    constant(FXLabel)operator(.)ident(new)operator(()ident(glcanvasFrame)operator(,) string<delimiter(")content(OpenGL Canvas Frame)delimiter(")>operator(,) pre_constant(nil)operator(,)
+      constant(JUSTIFY_CENTER_X)operator(|)constant(LAYOUT_FILL_X)operator(\))
+
+    comment(# Horizontal divider line)
+    constant(FXHorizontalSeparator)operator(.)ident(new)operator(()ident(glcanvasFrame)operator(,) constant(SEPARATOR_GROOVE)operator(|)constant(LAYOUT_FILL_X)operator(\))
+
+    comment(# Drawing glcanvas)
+    ident(glpanel) operator(=) constant(FXVerticalFrame)operator(.)ident(new)operator(()ident(glcanvasFrame)operator(,) operator(()constant(FRAME_SUNKEN)operator(|)constant(FRAME_THICK)operator(|)
+      constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_FILL_Y)operator(|)constant(LAYOUT_TOP)operator(|)constant(LAYOUT_LEFT)operator(\))operator(\))
+    ident(glpanel)operator(.)ident(padLeft)operator(,) ident(glpanel)operator(.)ident(padRight) operator(=) integer(0)operator(,) integer(0)
+    ident(glpanel)operator(.)ident(padTop)operator(,) ident(glpanel)operator(.)ident(padBottom) operator(=) integer(0)operator(,) integer(0)
+
+    comment(# A visual to draw OpenGL)
+    instance_variable(@glvisual) operator(=) constant(FXGLVisual)operator(.)ident(new)operator(()ident(getApp)operator(()operator(\))operator(,) constant(VISUAL_DOUBLEBUFFER)operator(\))
+
+    comment(# Drawing glcanvas)
+    instance_variable(@glcanvas) operator(=) constant(FXGLCanvas)operator(.)ident(new)operator(()ident(glpanel)operator(,) instance_variable(@glvisual)operator(,) pre_constant(nil)operator(,) integer(0)operator(,)
+      constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_FILL_Y)operator(|)constant(LAYOUT_TOP)operator(|)constant(LAYOUT_LEFT)operator(\))
+    instance_variable(@glcanvas)operator(.)ident(connect)operator(()constant(SEL_PAINT)operator(\)) operator({)
+      ident(drawScene)
+    operator(})
+    instance_variable(@glcanvas)operator(.)ident(connect)operator(()constant(SEL_CONFIGURE)operator(\)) operator({)
+      reserved(if) instance_variable(@glcanvas)operator(.)ident(makeCurrent)
+        constant(GL)operator(.)ident(Viewport)operator(()integer(0)operator(,) integer(0)operator(,) instance_variable(@glcanvas)operator(.)ident(width)operator(,) instance_variable(@glcanvas)operator(.)ident(height)operator(\))
+        instance_variable(@glcanvas)operator(.)ident(makeNonCurrent)
+      reserved(end)
+    operator(})
+
+    comment(# Right pane for the buttons)
+    ident(buttonFrame) operator(=) constant(FXVerticalFrame)operator(.)ident(new)operator(()ident(frame)operator(,) constant(LAYOUT_FILL_Y)operator(|)constant(LAYOUT_TOP)operator(|)constant(LAYOUT_LEFT)operator(\))
+    ident(buttonFrame)operator(.)ident(padLeft)operator(,) ident(buttonFrame)operator(.)ident(padRight) operator(=) integer(10)operator(,) integer(10)
+    ident(buttonFrame)operator(.)ident(padTop)operator(,) ident(buttonFrame)operator(.)ident(padBottom) operator(=) integer(10)operator(,) integer(10)
+
+    comment(# Label above the buttons)
+    constant(FXLabel)operator(.)ident(new)operator(()ident(buttonFrame)operator(,) string<delimiter(")content(Button Frame)delimiter(")>operator(,) pre_constant(nil)operator(,)
+      constant(JUSTIFY_CENTER_X)operator(|)constant(LAYOUT_FILL_X)operator(\))
+
+    comment(# Horizontal divider line)
+    constant(FXHorizontalSeparator)operator(.)ident(new)operator(()ident(buttonFrame)operator(,) constant(SEPARATOR_RIDGE)operator(|)constant(LAYOUT_FILL_X)operator(\))
+
+    comment(# Spin according to timer)
+    ident(spinTimerBtn) operator(=) constant(FXButton)operator(.)ident(new)operator(()ident(buttonFrame)operator(,)
+      string<delimiter(")content(Spin &Timer)char(\\t)content(Spin using interval timers)char(\\n)content(Note the app
+      blocks until the interal has elapsed...)delimiter(")>operator(,) pre_constant(nil)operator(,)
+      pre_constant(nil)operator(,) integer(0)operator(,) constant(FRAME_THICK)operator(|)constant(FRAME_RAISED)operator(|)constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_TOP)operator(|)constant(LAYOUT_LEFT)operator(\))
+    ident(spinTimerBtn)operator(.)ident(padLeft)operator(,) ident(spinTimerBtn)operator(.)ident(padRight) operator(=) integer(10)operator(,) integer(10)
+    ident(spinTimerBtn)operator(.)ident(padTop)operator(,) ident(spinTimerBtn)operator(.)ident(padBottom) operator(=) integer(5)operator(,) integer(5)
+    ident(spinTimerBtn)operator(.)ident(connect)operator(()constant(SEL_COMMAND)operator(\)) operator({)
+      instance_variable(@spinning) operator(=) pre_constant(true)
+      instance_variable(@timer) operator(=) ident(getApp)operator(()operator(\))operator(.)ident(addTimeout)operator(()constant(TIMER_INTERVAL)operator(,) ident(method)operator(()symbol(:onTimeout)operator(\))operator(\))
+    operator(})
+    ident(spinTimerBtn)operator(.)ident(connect)operator(()constant(SEL_UPDATE)operator(\)) operator({) operator(|)ident(sender)operator(,) ident(sel)operator(,) ident(ptr)operator(|)
+      instance_variable(@spinning) operator(?) ident(sender)operator(.)ident(disable) operator(:) ident(sender)operator(.)ident(enable)
+    operator(})
+
+    comment(# Spin according to chore)
+    ident(spinChoreBtn) operator(=) constant(FXButton)operator(.)ident(new)operator(()ident(buttonFrame)operator(,)
+      string<delimiter(")content(Spin &Chore)char(\\t)content(Spin as fast as possible using chores)char(\\n)content(Note even though the
+      app is very responsive, it never blocks;)char(\\n)content(there is always something to
+      do...)delimiter(")>operator(,) pre_constant(nil)operator(,)
+      pre_constant(nil)operator(,) integer(0)operator(,) constant(FRAME_THICK)operator(|)constant(FRAME_RAISED)operator(|)constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_TOP)operator(|)constant(LAYOUT_LEFT)operator(\))
+    ident(spinChoreBtn)operator(.)ident(padLeft)operator(,) ident(spinChoreBtn)operator(.)ident(padRight) operator(=) integer(10)operator(,) integer(10)
+    ident(spinChoreBtn)operator(.)ident(padTop)operator(,) ident(spinChoreBtn)operator(.)ident(padBottom) operator(=) integer(5)operator(,) integer(5)
+    ident(spinChoreBtn)operator(.)ident(connect)operator(()constant(SEL_COMMAND)operator(\)) operator({)
+      instance_variable(@spinning) operator(=) pre_constant(true)
+      instance_variable(@chore) operator(=) ident(getApp)operator(()operator(\))operator(.)ident(addChore)operator(()ident(method)operator(()symbol(:onChore)operator(\))operator(\))
+    operator(})
+    ident(spinChoreBtn)operator(.)ident(connect)operator(()constant(SEL_UPDATE)operator(\)) operator({) operator(|)ident(sender)operator(,) ident(sel)operator(,) ident(ptr)operator(|)
+      instance_variable(@spinning) operator(?) ident(sender)operator(.)ident(disable) operator(:) ident(sender)operator(.)ident(enable)
+    operator(})
+
+    comment(# Stop spinning)
+    ident(stopBtn) operator(=) constant(FXButton)operator(.)ident(new)operator(()ident(buttonFrame)operator(,)
+      string<delimiter(")content(&Stop Spin)char(\\t)content(Stop this mad spinning, I'm getting dizzy)delimiter(")>operator(,) pre_constant(nil)operator(,)
+      pre_constant(nil)operator(,) integer(0)operator(,) constant(FRAME_THICK)operator(|)constant(FRAME_RAISED)operator(|)constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_TOP)operator(|)constant(LAYOUT_LEFT)operator(\))
+    ident(stopBtn)operator(.)ident(padLeft)operator(,) ident(stopBtn)operator(.)ident(padRight) operator(=) integer(10)operator(,) integer(10)
+    ident(stopBtn)operator(.)ident(padTop)operator(,) ident(stopBtn)operator(.)ident(padBottom) operator(=) integer(5)operator(,) integer(5)
+    ident(stopBtn)operator(.)ident(connect)operator(()constant(SEL_COMMAND)operator(\)) operator({)
+      instance_variable(@spinning) operator(=) pre_constant(false)
+      reserved(if) instance_variable(@timer)
+        ident(getApp)operator(()operator(\))operator(.)ident(removeTimeout)operator(()instance_variable(@timer)operator(\))
+        instance_variable(@timer) operator(=) pre_constant(nil)
+      reserved(end)
+      reserved(if) instance_variable(@chore)
+        ident(getApp)operator(()operator(\))operator(.)ident(removeChore)operator(()instance_variable(@chore)operator(\))
+        instance_variable(@chore) operator(=) pre_constant(nil)
+      reserved(end)
+    operator(})
+    ident(stopBtn)operator(.)ident(connect)operator(()constant(SEL_UPDATE)operator(\)) operator({) operator(|)ident(sender)operator(,) ident(sel)operator(,) ident(ptr)operator(|)
+      instance_variable(@spinning) operator(?) ident(sender)operator(.)ident(enable) operator(:) ident(sender)operator(.)ident(disable)
+    operator(})
+
+    comment(# Exit button)
+    ident(exitBtn) operator(=) constant(FXButton)operator(.)ident(new)operator(()ident(buttonFrame)operator(,) string<delimiter(")content(&Exit)char(\\t)content(Exit the application)delimiter(")>operator(,) pre_constant(nil)operator(,)
+      ident(getApp)operator(()operator(\))operator(,) constant(FXApp)operator(::)constant(ID_QUIT)operator(,)
+      constant(FRAME_THICK)operator(|)constant(FRAME_RAISED)operator(|)constant(LAYOUT_FILL_X)operator(|)constant(LAYOUT_TOP)operator(|)constant(LAYOUT_LEFT)operator(\))
+    ident(exitBtn)operator(.)ident(padLeft)operator(,) ident(exitBtn)operator(.)ident(padRight) operator(=) integer(10)operator(,) integer(10)
+    ident(exitBtn)operator(.)ident(padTop)operator(,) ident(exitBtn)operator(.)ident(padBottom) operator(=) integer(5)operator(,) integer(5)
+
+    comment(# Make a tooltip)
+    constant(FXTooltip)operator(.)ident(new)operator(()ident(getApp)operator(()operator(\))operator(\))
+
+    comment(# Initialize private variables)
+    instance_variable(@spinning) operator(=) pre_constant(false)
+    instance_variable(@chore) operator(=) pre_constant(nil)
+    instance_variable(@timer) operator(=) pre_constant(nil)
+    instance_variable(@angle) operator(=) float(0.0)
+    instance_variable(@size) operator(=) float(0.5)
+  reserved(end)
+
+  comment(# Create and initialize)
+  reserved(def) method(create)
+    reserved(super)
+    ident(show)operator(()constant(PLACEMENT_SCREEN)operator(\))
+  reserved(end)
+reserved(end)
+
+reserved(if) pre_constant(__FILE__) operator(==) global_variable($0)
+  comment(# Construct the application)
+  ident(application) operator(=) constant(FXApp)operator(.)ident(new)operator(()string<delimiter(")content(GLTest)delimiter(")>operator(,) string<delimiter(")content(FoxTest)delimiter(")>operator(\))
+
+  comment(# To ensure that the chores-based spin will run as fast as possible,)
+  comment(# we can disable the chore in FXRuby's event loop that tries to schedule)
+  comment(# other threads. This is OK for this program because there aren't any)
+  comment(# other Ruby threads running.)
+
+  comment(#application.disableThreads)
+
+  comment(# Construct the main window)
+  constant(GLTestWindow)operator(.)ident(new)operator(()ident(application)operator(\))
+
+  comment(# Create the app's windows)
+  ident(application)operator(.)ident(create)
+
+  comment(# Run the application)
+  ident(application)operator(.)ident(run)
+reserved(end)
+
+reserved(class) class(Facelet)
+  ident(attr_accessor) symbol(:color)
+  reserved(def) method(initialize)operator(()ident(color)operator(\))
+    instance_variable(@color) operator(=) ident(color)
+  reserved(end)
+
+  reserved(def) method(to_s)
+    instance_variable(@color)
+  reserved(end)
+reserved(end)
+
+reserved(class) class(Edge)
+  ident(attr_accessor) symbol(:facelets)operator(,) symbol(:colors)
+
+  reserved(def) method(initialize)operator(()ident(facelets)operator(\))
+    instance_variable(@facelets) operator(=) ident(facelets)
+    instance_variable(@colors) operator(=) instance_variable(@facelets)operator(.)ident(map) operator({) operator(|)ident(fl)operator(|) ident(fl)operator(.)ident(color) operator(})
+  reserved(end)
+
+  reserved(def) method(apply)operator(()ident(edge)operator(\))
+    instance_variable(@facelets)operator(.)ident(each_with_index) operator({) operator(|)ident(fl)operator(,) ident(i)operator(|)
+      ident(fl)operator(.)ident(color) operator(=) ident(edge)operator(.)ident(colors)operator([)ident(i)operator(])
+    operator(})
+  reserved(end)
+
+  reserved(def) method(inspect)
+    string<delimiter(")char(\\n)content(%s %s)char(\\n)content(%s %s %s)delimiter(")> operator(%) ident(facelets)
+  reserved(end)
+reserved(end)
+
+reserved(class) class(Side)
+  ident(attr_reader) symbol(:num)operator(,) symbol(:facelets)
+  ident(attr_accessor) symbol(:sides)
+
+  reserved(def) method(initialize)operator(()ident(num)operator(\))
+    instance_variable(@num) operator(=) ident(num)
+    instance_variable(@sides) operator(=) operator([)operator(])
+    instance_variable(@facelets) operator(=) operator([)operator(])
+    instance_variable(@fl_by_side) operator(=) operator({)operator(})
+  reserved(end)
+
+  comment(# facelets & sides)
+  comment(#     0)
+  comment(#   0 1 2)
+  comment(# 3 3 4 5 1)
+  comment(#   6 7 8)
+  comment(#     2)
+
+  reserved(def) method(facelets=)operator(()ident(facelets)operator(\))
+    instance_variable(@facelets) operator(=) ident(facelets)operator(.)ident(map) operator({) operator(|)ident(c)operator(|) constant(Facelet)operator(.)ident(new)operator(()ident(c)operator(\)) operator(})
+    ident(init_facelet) integer(0)operator(,) integer(3)operator(,)integer(0)
+    ident(init_facelet) integer(1)operator(,) integer(0)
+    ident(init_facelet) integer(2)operator(,) integer(0)operator(,)integer(1)
+    ident(init_facelet) integer(3)operator(,) integer(3)
+    ident(init_facelet) integer(5)operator(,) integer(1)
+    ident(init_facelet) integer(6)operator(,) integer(2)operator(,)integer(3)
+    ident(init_facelet) integer(7)operator(,) integer(2)
+    ident(init_facelet) integer(8)operator(,) integer(1)operator(,)integer(2)
+  reserved(end)
+
+  reserved(def) method(<=>)operator(()ident(side)operator(\))
+    pre_constant(self)operator(.)ident(num) operator(<=>) ident(side)operator(.)ident(num)
+  reserved(end)
+
+  reserved(def) method(init_facelet)operator(()ident(pos)operator(,) operator(*)ident(side_nums)operator(\))
+    ident(sides) operator(=) ident(side_nums)operator(.)ident(map) operator({) operator(|)ident(num)operator(|) instance_variable(@sides)operator([)ident(num)operator(]) operator(})operator(.)ident(sort)
+    instance_variable(@fl_by_side)operator([)ident(sides)operator(]) operator(=) ident(pos)
+  reserved(end)
+
+  reserved(def) method([]=)operator(()ident(color)operator(,) operator(*)ident(sides)operator(\))
+    instance_variable(@facelets)operator([)instance_variable(@fl_by_side)operator([)ident(sides)operator(.)ident(sort)operator(])operator(])operator(.)ident(color) operator(=) ident(color)
+  reserved(end)
+
+  reserved(def) method(values_at)operator(()operator(*)ident(sides)operator(\))
+    ident(sides)operator(.)ident(map) operator({) operator(|)ident(sides)operator(|) instance_variable(@facelets)operator([)instance_variable(@fl_by_side)operator([)ident(sides)operator(.)ident(sort)operator(])operator(]) operator(})
+  reserved(end)
+
+  reserved(def) method(inspect)operator(()ident(range)operator(=)pre_constant(nil)operator(\))
+    reserved(if) ident(range)
+      instance_variable(@facelets)operator(.)ident(values_at)operator(()operator(*)operator(()ident(range)operator(.)ident(to_a)operator(\))operator(\))operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+    reserved(else)
+      string<delimiter(<<-EOS)>operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\d)delimiter(/)>operator(\)) operator({) operator(|)ident(num)operator(|) instance_variable(@facelets)operator([)ident(num)operator(.)ident(to_i)operator(]) operator(})operator(.)ident(gsub)operator(()regexp<delimiter(/)content([ABCD])delimiter(/)>operator(\)) operator({) operator(|)ident(side)operator(|) instance_variable(@sides)operator([)ident(side)operator([)integer(0)operator(])operator(-)integer(?A)operator(])operator(.)ident(num)operator(.)ident(to_s) operator(})string<content(
+           A
+         0 1 2
+       D 3 4 5 B
+         6 7 8
+           C)delimiter(
+      EOS)>
+    reserved(end)
+  reserved(end)
+
+  reserved(def) method(get_edge)operator(()ident(side)operator(\))
+    ident(trio) operator(=) operator(()integer(-1)operator(..)integer(1)operator(\))operator(.)ident(map) operator({) operator(|)ident(x)operator(|) operator(()ident(side) operator(+) ident(x)operator(\)) operator(%) integer(4) operator(})
+    ident(prev_side)operator(,) ident(this_side)operator(,) ident(next_side) operator(=) instance_variable(@sides)operator(.)ident(values_at)operator(()operator(*)ident(trio)operator(\))
+    ident(e) operator(=) constant(Edge)operator(.)ident(new)operator(()
+      pre_constant(self)     operator(.)ident(values_at)operator(()                    operator([)ident(this_side)operator(])operator(,) operator([)ident(this_side)operator(,) ident(next_side)operator(]) operator(\)) operator(+)
+      ident(this_side)operator(.)ident(values_at)operator(() operator([)pre_constant(self)operator(,) ident(prev_side)operator(])operator(,) operator([)pre_constant(self)     operator(])operator(,) operator([)pre_constant(self)operator(,)      ident(next_side)operator(]) operator(\))
+    operator(\))
+    comment(#puts 'Edge created for side %d: ' % side + e.inspect)
+    ident(e)
+  reserved(end)
+
+  reserved(def) method(turn)operator(()ident(dir)operator(\))
+    comment(#p 'turn side %d in %d' % [num, dir])
+    ident(edges) operator(=) operator(()integer(0)operator(..)integer(3)operator(\))operator(.)ident(map) operator({) operator(|)ident(n)operator(|) ident(get_edge) ident(n) operator(})
+    reserved(for) ident(i) reserved(in) integer(0)operator(..)integer(3)
+      ident(edges)operator([)ident(i)operator(])operator(.)ident(apply) ident(edges)operator([)operator(()ident(i)operator(-)ident(dir)operator(\)) operator(%) integer(4)operator(])
+    reserved(end)
+  reserved(end)
+reserved(end)
+
+reserved(class) class(Cube)
+  reserved(def) method(initialize)
+    instance_variable(@sides) operator(=) operator([)operator(])
+    string<delimiter(%w()content(left front right back top bottom)delimiter(\))>operator(.)ident(each_with_index) operator({) operator(|)ident(side)operator(,) ident(i)operator(|)
+      ident(eval)operator(()string<delimiter(")content(@sides[)inline<delimiter(#{)ident(i)delimiter(})>content(] = @)inline<delimiter(#{)ident(side)delimiter(})>content( = Side.new()inline<delimiter(#{)ident(i)delimiter(})>content(\))delimiter(")>operator(\))
+    operator(})
+    instance_variable(@left)operator(.)ident(sides) operator(=) operator([)instance_variable(@top)operator(,) instance_variable(@front)operator(,) instance_variable(@bottom)operator(,) instance_variable(@back)operator(])
+    instance_variable(@front)operator(.)ident(sides) operator(=) operator([)instance_variable(@top)operator(,) instance_variable(@right)operator(,) instance_variable(@bottom)operator(,) instance_variable(@left)operator(])
+    instance_variable(@right)operator(.)ident(sides) operator(=) operator([)instance_variable(@top)operator(,) instance_variable(@back)operator(,) instance_variable(@bottom)operator(,) instance_variable(@front)operator(])
+    instance_variable(@back)operator(.)ident(sides) operator(=) operator([)instance_variable(@top)operator(,) instance_variable(@left)operator(,) instance_variable(@bottom)operator(,) instance_variable(@right)operator(])
+    instance_variable(@top)operator(.)ident(sides) operator(=) operator([)instance_variable(@back)operator(,) instance_variable(@right)operator(,) instance_variable(@front)operator(,) instance_variable(@left)operator(])
+    instance_variable(@bottom)operator(.)ident(sides) operator(=) operator([)instance_variable(@front)operator(,) instance_variable(@right)operator(,) instance_variable(@back)operator(,) instance_variable(@left)operator(])
+  reserved(end)
+
+  reserved(def) method(read_facelets)operator(()ident(fs)operator(\))
+    ident(pattern) operator(=) constant(Regexp)operator(.)ident(new)operator(()string<delimiter(<<-EOP)>operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\w)delimiter(/)>operator(,) string<delimiter(')content(\\w)delimiter(')>operator(\))operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\s)content(+)delimiter(/)>operator(,) string<delimiter(')content(\\s)content(*)delimiter(')>operator(\))operator(\))string<content(
+        (w w w\)
+        (w w w\)
+        (w w w\)
+(r r r\) (g g g\) (b b b\) (o o o\)
+(r r r\) (g g g\) (b b b\) (o o o\)
+(r r r\) (g g g\) (b b b\) (o o o\)
+        (y y y\)
+        (y y y\)
+        (y y y\))delimiter(
+    EOP)>
+    ident(md) operator(=) ident(pattern)operator(.)ident(match)operator(()ident(fs)operator(\))operator(.)ident(to_a)
+
+    instance_variable(@top)operator(.)ident(facelets) operator(=) ident(parse_facelets)operator(()ident(md)operator(.)ident(values_at)operator(()integer(1)operator(,)integer(2)operator(,)integer(3)operator(\))operator(\))
+    instance_variable(@left)operator(.)ident(facelets) operator(=) ident(parse_facelets)operator(()ident(md)operator(.)ident(values_at)operator(()integer(4)operator(,)integer(8)operator(,)integer(12)operator(\))operator(\))
+    instance_variable(@front)operator(.)ident(facelets) operator(=) ident(parse_facelets)operator(()ident(md)operator(.)ident(values_at)operator(()integer(5)operator(,)integer(9)operator(,)integer(13)operator(\))operator(\))
+    instance_variable(@right)operator(.)ident(facelets) operator(=) ident(parse_facelets)operator(()ident(md)operator(.)ident(values_at)operator(()integer(6)operator(,)integer(10)operator(,)integer(14)operator(\))operator(\))
+    instance_variable(@back)operator(.)ident(facelets) operator(=) ident(parse_facelets)operator(()ident(md)operator(.)ident(values_at)operator(()integer(7)operator(,)integer(11)operator(,)integer(15)operator(\))operator(\))
+    instance_variable(@bottom)operator(.)ident(facelets) operator(=) ident(parse_facelets)operator(()ident(md)operator(.)ident(values_at)operator(()integer(16)operator(,)integer(17)operator(,)integer(18)operator(\))operator(\))
+  reserved(end)
+
+  reserved(def) method(turn)operator(()ident(side)operator(,) ident(dir)operator(\))
+    comment(#p 'turn %d in %d' % [side, dir])
+    instance_variable(@sides)operator([)ident(side)operator(])operator(.)ident(turn)operator(()ident(dir)operator(\))
+    comment(#puts inspect)
+  reserved(end)
+
+  reserved(def) method(inspect)
+    string<delimiter(<<-EOF)>operator(.)ident(gsub)operator(()regexp<delimiter(/)content(()char(\\d)content(\):()char(\\d)content(\)-()char(\\d)content(\))delimiter(/)>operator(\)) operator({) instance_variable(@sides)operator([)global_variable($1)operator(.)ident(to_i)operator(])operator(.)ident(inspect)operator(()constant(Range)operator(.)ident(new)operator(()global_variable($2)operator(.)ident(to_i)operator(,) global_variable($3)operator(.)ident(to_i)operator(\))operator(\)) operator(})string<content(
+      4:0-2
+      4:3-5
+      4:6-8
+0:0-2 1:0-2 2:0-2 3:0-2
+0:3-5 1:3-5 2:3-5 3:3-5
+0:6-8 1:6-8 2:6-8 3:6-8
+      5:0-2
+      5:3-5
+      5:6-8)delimiter(
+    EOF)>
+  reserved(end)
+
+ident(private)
+  reserved(def) method(parse_facelets)operator(()ident(rows)operator(\))
+    ident(rows)operator(.)ident(join)operator(.)ident(delete)operator(()string<delimiter(')content( )delimiter(')>operator(\))operator(.)ident(split)operator(()regexp<delimiter(/)delimiter(/)>operator(\))
+  reserved(end)
+reserved(end)
+
+comment(#$stdin = DATA)
+
+ident(gets)operator(.)ident(to_i)operator(.)ident(times) reserved(do) operator(|)ident(i)operator(|)
+  ident(puts) string<delimiter(")content(Scenario #)inline<delimiter(#{)ident(i)integer(+1)delimiter(})>content(:)delimiter(")>
+  ident(fs) operator(=) string<delimiter(')delimiter(')>
+  integer(9)operator(.)ident(times) operator({) ident(fs) operator(<<) ident(gets) operator(})
+  ident(cube) operator(=) constant(Cube)operator(.)ident(new)
+  ident(cube)operator(.)ident(read_facelets) ident(fs)
+  ident(gets)operator(.)ident(to_i)operator(.)ident(times) reserved(do) operator(|)ident(t)operator(|)
+    ident(side)operator(,) ident(dir) operator(=) ident(gets)operator(.)ident(split)operator(.)ident(map) operator({)operator(|)ident(s)operator(|) ident(s)operator(.)ident(to_i)operator(})
+    ident(cube)operator(.)ident(turn)operator(()ident(side)operator(,) ident(dir)operator(\))
+  reserved(end)
+  ident(puts) ident(cube)operator(.)ident(inspect)
+  ident(puts)
+reserved(end)
+
+comment(# 2004 by murphy <korny@cYcnus.de>)
+comment(# GPL)
+reserved(class) class(Scenario)
+	reserved(class) class(TimePoint)
+		ident(attr_reader) symbol(:data)
+		reserved(def) method(initialize) operator(*)ident(data)
+			instance_variable(@data) operator(=) ident(data)
+		reserved(end)
+
+		reserved(def) method([]) ident(i)
+			instance_variable(@data)operator([)ident(i)operator(]) reserved(or) integer(0)
+		reserved(end)
+
+		ident(include) constant(Comparable)
+		reserved(def) method(<=>) ident(tp)
+			ident(r) operator(=) integer(0)
+			operator([)instance_variable(@data)operator(.)ident(size)operator(,) ident(tp)operator(.)ident(data)operator(.)ident(size)operator(])operator(.)ident(max)operator(.)ident(times) reserved(do) operator(|)ident(i)operator(|)
+				ident(r) operator(=) pre_constant(self)operator([)ident(i)operator(]) operator(<=>) ident(tp)operator([)ident(i)operator(])
+				reserved(return) ident(r) reserved(if) ident(r)operator(.)ident(nonzero?)
+			reserved(end)
+			integer(0)
+		reserved(end)
+
+		reserved(def) method(-) ident(tp)
+			ident(r) operator(=) operator([)operator(])
+			operator([)instance_variable(@data)operator(.)ident(size)operator(,) ident(tp)operator(.)ident(data)operator(.)ident(size)operator(])operator(.)ident(max)operator(.)ident(times) reserved(do) operator(|)ident(i)operator(|)
+				ident(r) operator(<<) pre_constant(self)operator([)ident(i)operator(]) operator(-) ident(tp)operator([)ident(i)operator(])
+			reserved(end)
+			ident(r)
+		reserved(end)
+
+		reserved(def) method(inspect)
+			comment(# 01/01/1800 00:00:00)
+			string<delimiter(')content(%02d/%02d/%04d %02d:%02d:%02d)delimiter(')> operator(%) instance_variable(@data)operator(.)ident(values_at)operator(()integer(1)operator(,) integer(2)operator(,) integer(0)operator(,) integer(3)operator(,) integer(4)operator(,) integer(5)operator(\))
+		reserved(end)
+	reserved(end)
+
+	constant(ONE_HOUR) operator(=) constant(TimePoint)operator(.)ident(new) integer(0)operator(,) integer(0)operator(,) integer(0)operator(,) integer(1)operator(,) integer(0)operator(,) integer(0)
+
+	constant(APPOINTMENT_PATTERN) operator(=) regexp<delimiter(/)content(
+		( )char(\\d)content({4} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content(
+		( )char(\\d)content({4} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content( ( )char(\\d)content({2} \) )char(\\s)content( ( )char(\\d)content({2} \)
+	)delimiter(/)modifier(x)>
+
+	reserved(def) method(initialize) ident(io)
+		instance_variable(@team_size) operator(=) ident(io)operator(.)ident(gets)operator(.)ident(to_i)
+		instance_variable(@data) operator(=) operator([) operator([)constant(TimePoint)operator(.)ident(new)operator(()integer(1800)operator(,) integer(01)operator(,) integer(01)operator(,) integer(00)operator(,) integer(00)operator(,) integer(00)operator(\))operator(,) instance_variable(@team_size)operator(]) operator(])
+		instance_variable(@team_size)operator(.)ident(times) reserved(do)  comment(# each team member)
+			ident(io)operator(.)ident(gets)operator(.)ident(to_i)operator(.)ident(times) reserved(do)  comment(# each appointment)
+				ident(m) operator(=) constant(APPOINTMENT_PATTERN)operator(.)ident(match) ident(io)operator(.)ident(gets)
+				instance_variable(@data) operator(<<) operator([)constant(TimePoint)operator(.)ident(new)operator(()operator(*)ident(m)operator(.)ident(captures)operator([)integer(0)operator(,)integer(6)operator(])operator(.)ident(map) operator({) operator(|)ident(x)operator(|) ident(x)operator(.)ident(to_i) operator(})operator(\))operator(,) integer(-1)operator(])
+				instance_variable(@data) operator(<<) operator([)constant(TimePoint)operator(.)ident(new)operator(()operator(*)ident(m)operator(.)ident(captures)operator([)integer(6)operator(,)integer(6)operator(])operator(.)ident(map) operator({) operator(|)ident(x)operator(|) ident(x)operator(.)ident(to_i) operator(})operator(\))operator(,) integer(+1)operator(])
+			reserved(end)
+		reserved(end)
+		instance_variable(@data) operator(<<) operator([)constant(TimePoint)operator(.)ident(new)operator(()integer(2200)operator(,) integer(01)operator(,) integer(01)operator(,) integer(00)operator(,) integer(00)operator(,) integer(00)operator(\))operator(,) operator(-)instance_variable(@team_size)operator(])
+	reserved(end)
+
+	reserved(def) method(print_time_plan)
+		ident(n) operator(=) integer(0)
+		ident(appointment) operator(=) pre_constant(nil)
+		ident(no_appointment) operator(=) pre_constant(true)
+		instance_variable(@data)operator(.)ident(sort_by) operator({) operator(|)ident(x)operator(|) ident(x)operator([)integer(0)operator(]) operator(})operator(.)ident(each) reserved(do) operator(|)ident(x)operator(|)
+			ident(tp)operator(,) ident(action) operator(=) operator(*)ident(x)
+			ident(n) operator(+=) ident(action)
+			comment(# at any time during the meeting, at least two team members need to be there)
+			comment(# and at most one team member is allowed to be absent)
+			reserved(if) ident(n) operator(>)operator(=) integer(2) reserved(and) operator(()instance_variable(@team_size) operator(-) ident(n)operator(\)) operator(<=) integer(1)
+				ident(appointment) operator(||=) ident(tp)
+			reserved(else)
+				reserved(if) ident(appointment)
+					comment(# the meeting should be at least one hour in length)
+					reserved(if) constant(TimePoint)operator(.)ident(new)operator(()operator(*)operator(()ident(tp) operator(-) ident(appointment)operator(\))operator(\)) operator(>)operator(=) constant(ONE_HOUR)
+						ident(puts) string<delimiter(')content(appointment possible from %p to %p)delimiter(')> operator(%) operator([)ident(appointment)operator(,) ident(tp)operator(])
+						ident(no_appointment) operator(=) pre_constant(false)
+					reserved(end)
+					ident(appointment) operator(=) pre_constant(false)
+				reserved(end)
+			reserved(end)
+		reserved(end)
+		ident(puts) string<delimiter(')content(no appointment possible)delimiter(')> reserved(if) ident(no_appointment)
+	reserved(end)
+reserved(end)
+
+comment(# read the data)
+pre_constant(DATA)operator(.)ident(gets)operator(.)ident(to_i)operator(.)ident(times) reserved(do) operator(|)ident(si)operator(|) comment(# each scenario)
+	ident(puts) string<delimiter(')content(Scenario #%d:)delimiter(')> operator(%) operator(()ident(si) operator(+) integer(1)operator(\))
+	ident(sc) operator(=) constant(Scenario)operator(.)ident(new) pre_constant(DATA)
+	ident(sc)operator(.)ident(print_time_plan)
+	ident(puts)
+reserved(end)
+
+comment(#__END__)
+integer(2)
+integer(3)
+integer(3)
+integer(2002) integer(06) integer(28) integer(15) integer(00) integer(00) integer(2002) integer(06) integer(28) integer(18) integer(00) integer(00) constant(TUD) constant(Contest) constant(Practice) constant(Session)
+integer(2002) integer(06) integer(29) integer(10) integer(00) integer(00) integer(2002) integer(06) integer(29) integer(15) integer(00) integer(00) constant(TUD) constant(Contest)
+integer(2002) integer(11) integer(15) integer(15) integer(00) integer(00) integer(2002) integer(11) integer(17) integer(23) integer(00) integer(00) constant(NWERC) constant(Delft)
+integer(4)
+integer(2002) integer(06) integer(25) integer(13) integer(30) integer(00) integer(2002) integer(06) integer(25) integer(15) integer(30) integer(00) constant(FIFA) constant(World) constant(Cup) constant(Semifinal) constant(I)
+integer(2002) integer(06) integer(26) integer(13) integer(30) integer(00) integer(2002) integer(06) integer(26) integer(15) integer(30) integer(00) constant(FIFA) constant(World) constant(Cup) constant(Semifinal) constant(II)
+integer(2002) integer(06) integer(29) integer(13) integer(00) integer(00) integer(2002) integer(06) integer(29) integer(15) integer(00) integer(00) constant(FIFA) constant(World) constant(Cup) constant(Third) constant(Place)
+integer(2002) integer(06) integer(30) integer(13) integer(00) integer(00) integer(2002) integer(06) integer(30) integer(15) integer(00) integer(00) constant(FIFA) constant(World) constant(Cup) constant(Final)
+integer(1)
+integer(2002) integer(06) integer(01) integer(00) integer(00) integer(00) integer(2002) integer(06) integer(29) integer(18) integer(00) integer(00) constant(Preparation) ident(of) constant(Problem) constant(Set)
+integer(2)
+integer(1)
+integer(1800) integer(01) integer(01) integer(00) integer(00) integer(00) integer(2200) integer(01) integer(01) integer(00) integer(00) integer(00) constant(Solving) constant(Problem) integer(8)
+integer(0)
+
+ident(require) string<delimiter(')content(token_consts)delimiter(')>
+ident(require) string<delimiter(')content(symbol)delimiter(')>
+ident(require) string<delimiter(')content(ctype)delimiter(')>
+ident(require) string<delimiter(')content(error)delimiter(')>
+
+reserved(class) class(Fixnum)
+	comment(# Treat char as a digit and return it's value as Fixnum.)
+	comment(# Returns nonsense for non-digits.)
+	comment(# Examples:)
+	comment(# <code>)
+	comment(# RUBY_VERSION[0].digit == '1.8.2'[0].digit == 1)
+	comment(# </code>)
+	comment(#)
+	comment(# <code>)
+	comment(# ?6.digit == 6)
+	comment(# </code>)
+	comment(#)
+	comment(# <code>)
+	comment(# ?A.digit == 17)
+	comment(# </code>)
+	reserved(def) method(digit)
+		pre_constant(self) operator(-) integer(?0)
+	reserved(end)
+reserved(end)
+
+comment(##)
+comment(# Stellt einen einfachen Scanner f�r die lexikalische Analyse der Sprache Pas-0 dar.)
+comment(#)
+comment(# @author Andreas Kunert)
+comment(# Ruby port by murphy)
+reserved(class) class(Scanner)
+
+	ident(include) constant(TokenConsts)
+
+	ident(attr_reader) symbol(:line)operator(,) symbol(:pos)
+
+	comment(# To allow Scanner.new without parameters.)
+	constant(DUMMY_INPUT) operator(=) string<delimiter(')content(dummy file)delimiter(')>
+	reserved(def) constant(DUMMY_INPUT)operator(.)ident(getc)
+		pre_constant(nil)
+	reserved(end)
+
+	comment(##)
+	comment(# Erzeugt einen Scanner, der als Eingabe das �bergebene IO benutzt.)
+	reserved(def) method(initialize) ident(input) operator(=) constant(DUMMY_INPUT)
+		instance_variable(@line) operator(=) integer(1)
+		instance_variable(@pos) operator(=) integer(0)
+
+		reserved(begin)
+			instance_variable(@input) operator(=) ident(input)
+			instance_variable(@next_char) operator(=) instance_variable(@input)operator(.)ident(getc)
+		reserved(rescue) constant(IOError)  comment(# TODO show the reason!)
+			constant(Error)operator(.)ident(ioError)
+			ident(raise)
+		reserved(end)
+	reserved(end)
+
+	comment(##)
+	comment(# Liest das n
+	reserved(def) method(read_next_char)
+		reserved(begin)
+			instance_variable(@pos) operator(+=) integer(1)
+			instance_variable(@current_char) operator(=) instance_variable(@next_char)
+			instance_variable(@next_char) operator(=) instance_variable(@input)operator(.)ident(getc)
+		reserved(rescue) constant(IOError)
+			constant(Error)operator(.)ident(ioError)
+			ident(raise)
+		reserved(end)
+	reserved(end)
+
+	comment(##)
+	comment(# Sucht das n�chste Symbol, identifiziert es, instantiiert ein entsprechendes)
+	comment(# PascalSymbol-Objekt und gibt es zur�ck.)
+	comment(# @see Symbol)
+	comment(# @return das gefundene Symbol als PascalSymbol-Objekt)
+	reserved(def) method(get_symbol)
+		ident(current_symbol) operator(=) pre_constant(nil)
+		reserved(until) ident(current_symbol)
+			ident(read_next_char)
+
+			reserved(if) instance_variable(@current_char)operator(.)ident(alpha?)
+				ident(identifier) operator(=) instance_variable(@current_char)operator(.)ident(chr)
+				reserved(while) instance_variable(@next_char)operator(.)ident(alpha?) reserved(or) instance_variable(@next_char)operator(.)ident(digit?)
+					ident(identifier) operator(<<) instance_variable(@next_char)
+					ident(read_next_char)
+				reserved(end)
+				ident(current_symbol) operator(=) ident(handle_identifier)operator(()ident(identifier)operator(.)ident(upcase)operator(\))
+			reserved(elsif) instance_variable(@current_char)operator(.)ident(digit?)
+				ident(current_symbol) operator(=) ident(number)
+			reserved(else)
+				reserved(case) instance_variable(@current_char)
+				reserved(when) integer(?\\s)
+					comment(# ignore)
+				reserved(when) integer(?\\n)
+					ident(new_line)
+				reserved(when) pre_constant(nil)
+					ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(EOP)
+				reserved(when) integer(?{)
+					ident(comment)
+
+				reserved(when) integer(?:)
+					reserved(if) instance_variable(@next_char) operator(==) integer(?=)
+						ident(read_next_char)
+						ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(BECOMES)
+					reserved(else)
+						ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(COLON)
+					reserved(end)
+
+				reserved(when) integer(?<)
+					reserved(if) operator(()instance_variable(@next_char) operator(==) integer(?=)operator(\))
+						ident(read_next_char)
+						ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(LEQSY)
+					reserved(elsif) operator(()instance_variable(@next_char) operator(==) integer(?>)operator(\))
+						ident(read_next_char)
+						ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(NEQSY)
+					reserved(else)
+						ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(LSSSY)
+					reserved(end)
+
+				reserved(when) integer(?>)
+					reserved(if) operator(()instance_variable(@next_char) operator(==) integer(?=)operator(\))
+						ident(read_next_char)
+						ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(GEQSY)
+					reserved(else)
+						ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(GRTSY)
+					reserved(end)
+
+				reserved(when) integer(?.) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(PERIOD)
+				reserved(when) integer(?() reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(LPARENT)
+				reserved(when) integer(?,) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(COMMA)
+				reserved(when) integer(?*) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(TIMES)
+				reserved(when) integer(?/) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(SLASH)
+				reserved(when) integer(?+) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(PLUS)
+				reserved(when) integer(?-) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(MINUS)
+				reserved(when) integer(?=) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(EQLSY)
+				reserved(when) integer(?\)) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(RPARENT)
+				reserved(when) integer(?;) reserved(then) ident(current_symbol) operator(=) constant(PascalSymbol)operator(.)ident(new) constant(SEMICOLON)
+				reserved(else)
+					constant(Error)operator(.)ident(error)operator(()integer(100)operator(,) instance_variable(@line)operator(,) instance_variable(@pos)operator(\)) reserved(if) instance_variable(@current_char) operator(>) integer(?\\s)
+				reserved(end)
+			reserved(end)
+		reserved(end)
+		ident(current_symbol)
+	reserved(end)
+
+ident(private)
+	comment(##)
+	comment(# Versucht, in dem gegebenen String ein Schl�sselwort zu erkennen.)
+	comment(# Sollte dabei ein Keyword gefunden werden, so gibt er ein PascalSymbol-Objekt zur�ck, das)
+	comment(# das entsprechende Keyword repr�sentiert. Ansonsten besteht die R�ckgabe aus)
+	comment(# einem SymbolIdent-Objekt (abgeleitet von PascalSymbol\), das den String 1:1 enth�lt)
+	comment(# @see symbol)
+	comment(# @return falls Keyword gefunden, zugeh�riges PascalSymbol, sonst SymbolIdent)
+	reserved(def) method(handle_identifier) ident(identifier)
+		reserved(if) ident(sym) operator(=) constant(KEYWORD_SYMBOLS)operator([)ident(identifier)operator(])
+			constant(PascalSymbol)operator(.)ident(new) ident(sym)
+		reserved(else)
+			constant(SymbolIdent)operator(.)ident(new) ident(identifier)
+		reserved(end)
+	reserved(end)
+
+	constant(MAXINT) operator(=) integer(2)operator(**)integer(31) operator(-) integer(1)
+	constant(MAXINT_DIV_10)  operator(=) constant(MAXINT) operator(/) integer(10)
+	constant(MAXINT_MOD_10)  operator(=) constant(MAXINT) operator(%) integer(10)
+	comment(##)
+	comment(# Versucht, aus dem gegebenen Zeichen und den folgenden eine Zahl zusammenzusetzen.)
+	comment(# Dabei wird der relativ intuitive Algorithmus benutzt, die endg�ltige Zahl bei)
+	comment(# jeder weiteren Ziffer mit 10 zu multiplizieren und diese dann mit der Ziffer zu)
+	comment(# addieren. Sonderf�lle bestehen dann nur noch in der Behandlung von reellen Zahlen.)
+	comment(# <BR>)
+	comment(# Treten dabei kein Punkt oder ein E auf, so gibt diese Methode ein SymbolIntCon-Objekt)
+	comment(# zur�ck, ansonsten (reelle Zahl\) ein SymbolRealCon-Objekt. Beide Symbole enthalten)
+	comment(# jeweils die Zahlwerte.)
+	comment(# <BR>)
+	comment(# Anmerkung: Diese Funktion ist mit Hilfe der Java/Ruby-API deutlich leichter zu realisieren.)
+	comment(# Sie wurde dennoch so implementiert, um den Algorithmus zu demonstrieren)
+	comment(# @see symbol)
+	comment(# @return SymbolIntcon- oder SymbolRealcon-Objekt, das den Zahlwert enth�lt)
+	reserved(def) method(number)
+		ident(is_integer) operator(=) pre_constant(true)
+		ident(integer_too_long) operator(=) pre_constant(false)
+		ident(exponent) operator(=) integer(0)
+		ident(exp_counter) operator(=) integer(-1)
+		ident(exp_sign) operator(=) integer(1)
+
+		ident(integer_mantisse) operator(=) instance_variable(@current_char)operator(.)ident(digit)
+
+		reserved(while) operator(()instance_variable(@next_char)operator(.)ident(digit?) reserved(and) ident(integer_mantisse) operator(<) constant(MAXINT_DIV_10)operator(\)) reserved(or)
+		 operator(()ident(integer_mantisse) operator(==) constant(MAXINT_DIV_10) reserved(and) instance_variable(@next_char)operator(.)ident(digit) operator(<=) constant(MAXINT_MOD_10)operator(\))
+			ident(integer_mantisse) operator(*=) integer(10)
+			ident(integer_mantisse) operator(+=) instance_variable(@next_char)operator(.)ident(digit)
+			ident(read_next_char)
+		reserved(end)
+
+		ident(real_mantisse) operator(=) ident(integer_mantisse)
+
+		reserved(while) instance_variable(@next_char)operator(.)ident(digit?)
+			ident(integer_too_long) operator(=) pre_constant(true)
+			ident(real_mantisse) operator(*=) integer(10)
+			ident(real_mantisse) operator(+=) instance_variable(@next_char)operator(.)ident(digit)
+			ident(read_next_char)
+		reserved(end)
+		reserved(if) instance_variable(@next_char) operator(==) integer(?.)
+			ident(read_next_char)
+			ident(is_integer) operator(=) pre_constant(false)
+			reserved(unless) instance_variable(@next_char)operator(.)ident(digit?)
+				constant(Error)operator(.)ident(error) integer(101)operator(,) instance_variable(@line)operator(,) instance_variable(@pos)
+			reserved(end)
+			reserved(while) instance_variable(@next_char)operator(.)ident(digit?)
+				ident(real_mantisse) operator(+=) instance_variable(@next_char)operator(.)ident(digit) operator(*) operator(()integer(10) operator(**) ident(exp_counter)operator(\))
+				ident(read_next_char)
+				ident(exp_counter) operator(-=) integer(1)
+			reserved(end)
+		reserved(end)
+		reserved(if) instance_variable(@next_char) operator(==) integer(?E)
+			ident(is_integer) operator(=) pre_constant(false)
+			ident(read_next_char)
+			reserved(if) instance_variable(@next_char) operator(==) integer(?-)
+				ident(exp_sign) operator(=) integer(-1)
+				ident(read_next_char)
+			reserved(end)
+			reserved(unless) instance_variable(@next_char)operator(.)ident(digit?)
+				constant(Error)operator(.)ident(error) integer(101)operator(,) instance_variable(@line)operator(,) instance_variable(@pos)
+			reserved(end)
+			reserved(while) instance_variable(@next_char)operator(.)ident(digit?)
+				ident(exponent) operator(*=) integer(10)
+				ident(exponent) operator(+=) instance_variable(@next_char)operator(.)ident(digit)
+				ident(read_next_char)
+			reserved(end)
+		reserved(end)
+
+		reserved(if) ident(is_integer)
+			reserved(if) ident(integer_too_long)
+				constant(Error)operator(.)ident(error) integer(102)operator(,) instance_variable(@line)operator(,) instance_variable(@pos)
+			reserved(end)
+			constant(SymbolIntcon)operator(.)ident(new) ident(integer_mantisse)
+		reserved(else)
+			constant(SymbolRealcon)operator(.)ident(new) ident(real_mantisse) operator(*) operator(()integer(10) operator(**) operator(()ident(exp_sign) operator(*) ident(exponent)operator(\))operator(\))
+		reserved(end)
+	reserved(end)
+
+	comment(##)
+	comment(# Sorgt f�r ein �berlesen von Kommentaren.)
+	comment(# Es werden einfach alle Zeichen bis zu einer schlie�enden Klammer eingelesen)
+	comment(# und verworfen.)
+	reserved(def) method(comment)
+		reserved(while) instance_variable(@current_char) operator(!=) integer(?})
+			ident(forbid_eop)
+			ident(new_line) reserved(if) instance_variable(@current_char) operator(==) integer(?\\n)
+			ident(read_next_char)
+		reserved(end)
+	reserved(end)
+
+	reserved(def) method(new_line)
+		instance_variable(@line) operator(+=) integer(1)
+		instance_variable(@pos) operator(=) integer(0)
+	reserved(end)
+
+	reserved(def) method(forbid_eop)
+		reserved(if) ident(eop?)
+			constant(Error)operator(.)ident(error) integer(103)operator(,) instance_variable(@line)operator(,) instance_variable(@pos)
+		reserved(end)
+		ident(exit)
+	reserved(end)
+
+	reserved(def) method(eop?)
+		instance_variable(@current_char)operator(.)ident(nil?)
+	reserved(end)
+reserved(end)
+
+comment(##)
+comment(# L��t ein Testprogramm ablaufen.)
+comment(# Dieses erzeugt sich ein Scanner-Objekt und ruft an diesem kontinuierlich bis zum Dateiende)
+comment(# get_symbol auf.)
+reserved(if) global_variable($0) operator(==) pre_constant(__FILE__)
+	ident(scan) operator(=) constant(Scanner)operator(.)ident(new)operator(()constant(File)operator(.)ident(new)operator(()pre_constant(ARGV)operator([)integer(0)operator(]) operator(||) string<delimiter(')content(test.pas)delimiter(')>operator(\))operator(\))
+	ident(loop) reserved(do)
+		ident(c) operator(=) ident(scan)operator(.)ident(get_symbol)
+		ident(puts) ident(c)
+		reserved(break) reserved(if) ident(c)operator(.)ident(typ) operator(==) constant(TokenConsts)operator(::)constant(EOP)
+	reserved(end)
+reserved(end)
+
diff --git a/test/scanners/ruby/jarh.in.rb b/test/scanners/ruby/jarh.in.rb
new file mode 100644
index 0000000..df2176e
--- /dev/null
+++ b/test/scanners/ruby/jarh.in.rb
@@ -0,0 +1,371 @@
+
+print ',rekcah ybuR rehtona tsuJ'.reverse
+
+print %q/92G5S="!A;F]T:&5R(%)U8GD@:&%C:V5R+```/.unpack('u')
+
+print %q/SnVzdCBhbm90aGVyIFJ1YnkgaGFja2VyLA==/.unpack('m')
+
+print 'Whfg nabgure Ehol unpxre,'.tr('A-Za-z', 'N-ZA-Mn-za-m')
+
+print({'ruby' => 'Just another Ruby hacker,'}['ruby'])
+
+print 'jUsT aNoThEr '.capitalize, 'RuBy HaCkEr,'.capitalize
+
+print ['Just another Ruby hacker,'][0]
+
+print ['hacker,', 'Ruby ', 'another ', 'Just '].reverse
+
+proc {print 'Just another Ruby hacker,'}.call
+
+def pri() print 'Just another Ruby hacker,' end; pri
+
+for i in 'Just another Ruby hacker,' do print i end
+
+print `echo -n Just another Ruby hacker,`
+
+print 'Just another Ruby hacker,'.split('')
+
+print 'JQust aQnotQher RQuby hQackQer,'.delete('Q')
+
+'Just another Ruby hacker,'.scan(/(.)/) {print $1}
+
+print 'Just ' + 'another ' + 'Ruby ' + 'hacker,'
+
+print ['4a75737420616e6f746865722052756279206861636b65722c'].pack('H*')
+
+print 'Just another Ruby hacker,'.split(/(.)/)
+
+print %w(Just another Ruby hacker,).join(' ')
+
+print({'another '=>'Just ', 'hacker,'=>'Ruby '}.invert.sort)
+
+print eval(%-eval %: %|Just another Ruby hacker,| :-)
+
+#;eval %qPprint eval %-eval %:'Just another Ruby hacker,' :-P
+
+print Hash.new('Just another Ruby hacker,')[:Ruby]
+
+print ['Just ', ['another ', ['Ruby ', ['hacker,']]]].flatten
+
+print Struct.new(*%w|Ruby Just another Ruby hacker,|)[*[0]*4].members.join(' ')
+
+print Time.now.strftime('Just another Ruby hacker,')
+
+print "   Just another Ruby hacker,    \r\n".strip
+
+print ['Just ', nil, 'another ', nil, 'Ruby ', nil, 'hacker,'].compact
+
+['hacker,', 'Ruby ', 'another ', 'Just '].reverse_each do |x| print x end
+
+/Just another Ruby hacker,/.source.display
+
+send :print, 'Just another Ruby hacker,'
+
+print ['Just ', 'another ', 'Ruby '] | ['another ', 'Ruby ', 'hacker,']
+
+print ['Just ', 'another ', 'Perl', 'Ruby ', 'hacker,'] - ['Perl']
+
+print [['', 'Just another Ruby hacker,']].assoc('')
+
+print ['Just another Ruby hacker,'].pack('a*')
+
+print 'Just another Ruby hacker,'.unpack('a*')
+
+print [['Just another Ruby hacker,'].pop].sort.shift
+
+print [['Just another Ruby hacker,', '']].rassoc('')
+
+{'Just another ' => 'Ruby hacker,'}.to_a.display
+
+print 'Just another Ruby hackeq,'.succ
+
+print 'jUST ANOTHER rUBY HACKER,'.swapcase
+
+print ['Just another Ruby hacker,'].find {|x| x}
+
+print %w(Just another Ruby hacker,).find_all {|x| x}.join(' ')
+
+print %w(Just another Ruby hacker,).grep(/./).join(' ')
+
+Ruby = 'Just another Ruby hacker,' and print Object.const_get(:Ruby)
+
+Proc.new {print 'Just another Ruby hacker,'}[]
+
+print 'JJuusstt  aannootthheerr  RRuubbyy  hhaacckkeerr,,'.squeeze
+
+print [1249211252, 543256175, 1952998770, 542274914, 2032167009, 1667982706].pack('N*'), ','
+
+$> << 'Just ' << 'another ' << 'Ruby ' << 'hacker,'
+
+5.times do|i|'Jaebcunrykso  ettRhr hua,'.scan(/.{5}/) do print $&[i,1] end end
+
+a=',rekcah ybuR rehtona tsuJ'.split('');print a.pop while not a.empty?
+
+print ',Pr-eok,c"a$h! kypbquuRA %roeqhbtaoon;ab rtesbujJ&'.gsub(/(.)./, '\1').reverse
+
+print /.*/.match('Just another Ruby hacker,')
+
+print $& if /.*/ === 'Just another Ruby hacker,'
+
+case 'Just another Ruby hacker,' when /.*/; print $~[0] end
+
+print Marshal.load(Marshal.dump("Just another Ruby hacker,"))
+
+'Just another Ruby hacker,'.each_byte do |x| print x.chr end
+
+print '/hacker,/another /Ruby /Just '.split('/').sort.values_at(1,3,2,4)
+
+print 'Just another Perl hacker,'.sub('Perl', 'Ruby')
+
+#$><<'RbyckJust another,'.split('').values_at(5..16,9,0,6,1,2,9,14,10,3,4,15..17)
+
+('a'..'y').to_a.join.tr('a-y','Just another Ruby hacker,').display
+
+begin print 'Just another ' ensure print 'Ruby hacker,' end
+
+'J,ursetk caanho tyhbeurR  Rruebhyt ohnaac ktesru,J'.scan(/.(.)/).reverse.display
+
+'J,ursetk caanho tyhbeurR  Rruebhyt ohnaac ktesru,J'.gsub(/(.)./,'\1').display
+
+a='J,ursetk caanho tyhbeurR ';0.step(24,2){|i|print a[i,1]};23.step(1,-2){|i|print a[i,1]}
+
+a='Js nte uyhce,rka bRrhoatu'.split('');12.times{print a.shift,a.pop};print a
+
+a='Js nte uyhce,rka bRrhoatu';begin a.sub!(/^(.)(.*)(.)$/){print $1,$3;$2}end while$1;print a
+
+a='J Ruby hacker,ust another';11.times{a.sub!(/^(.)(.*)(.)$/,'\1\3\2')};print a
+
+print 'Just. another! -Ruby? $hacker,'.tr_s('-.!?$ ', ' ')
+
+' e m r,yJaRnafatbpcuekewhjhskvngohrlrxsctdtiubuoyq'.scan(/(.)(.)/).collect!{|x|[x[1],x[0]]}.sort.collect!{|x|x[1]}.display
+
+'e m r y,aJnRfatapbuckewejhshvkgnholrxrcsdtitbuouqy'.scan(/../).sort.collect!{|x|x[1,1]}.display
+
+'4a75737420616e6f746865722052756279206861636b65722c'.scan(/../){print $&.hex.chr}
+
+print ['Just another Perl hacker,'].fill('Just another Ruby hacker,')
+
+$><<{1=>'Just ',2=>'another ',3=>'Ruby ',4=>'hacker,'}.sort.to_s.delete('1-4')
+
+Kernel.print %q<Just another Ruby hacker,>
+
+class Just_another_Ruby_hackerq;end;print Just_another_Ruby_hackerq.to_s.tr('_q',' ,')
+
+Kust_another_Ruby_hacker=0;print Module.constants.grep(/Kust/)[0].tr('K_','J '), ','
+
+module Lust_another_Ruby_hackerq; print name.tr('L_q', 'J ,') end
+
+class Bar; print 'Just another Ruby hacker,' end
+
+class Baz; def initialize() print 'Just another Ruby hacker,' end end; Baz.new
+
+eval "A<')I;G0@)TIU<W0@86YO=&AE<B!2=6)Y(&AA8VME<BPG".unpack('u')[0]
+
+eval "cHJpbnQgJ0p1c3QgYW5vdGhlciBSdWJ5IGhhY2tlciwn".unpack('m')[0]
+
+$stdout.write 'Just another Ruby hacker,'
+
+"Just \nanother \nRuby \nhacker,\n".each do |x| print x.chomp end
+
+print $' if /\n/x === "\nJust another Ruby hacker,"
+
+raise 'Just another Ruby hacker,' rescue print $!
+
+print File.basename('~/Just another Ruby hacker,.rb','.*')
+
+proc{|x|x['Just another Ruby hacker,']}[proc{|x|print x}]
+
+method(:print)['Just another Ruby hacker,']
+
+'Just another Ruby hacker,'.method(:display)[]
+
+print ''.replace('Just another Ruby hacker,')
+
+instance_eval do print 'Just another Ruby hacker,' end
+
+Kernel.module_eval do print 'Just another Ruby hacker,' end
+
+print %%\%s%%%%Just another Ruby hacker,%%%%%%%%%
+
+print !?????:???%?Just another Ruby hacker,?:??
+
+#({}.default='Just another Ruby hacker,')[0].display
+
+print Hash['Just another ', 'Ruby hacker,']
+
+print 'Just ' 'another ' 'Ruby ' 'hacker,'
+
+print File.dirname('Just another Ruby hacker,/Just another Ruby porter,')
+
+def $_.singleton_method_added(*) print 'Just another Ruby hacker,' end
+
+print ['Just another Ruby hacker,'].delete_at(0)
+
+print '%s %s %s %s' % %w[Just another Ruby hacker,]
+
+'cker,by haer RuanothJust '.scan(/.{5}/).reverse.display
+
+(97..121).to_a.pack('c*').tr('a-y','Just another Ruby hacker,').display
+
+'abcdefghijklmnopqrstuvwxy'.tr('a-y','Just another Ruby hacker,').display
+
+',rekcah ybuR rehtona tsuJ'.scan(/.{1}/).reverse.display
+
+print 'Just another Ruby hacker,'%%; (^_^;;;
+
+print('Just another Ruby hacker,'% %- ;-)
+
+'r,keac hbyRur heotant usJ'.scan(/.{1,2}/).reverse.display
+
+print 'Just another Ruby hacker,' * ('Just another Ruby hacker,' =~ /u/)
+
+print 'uJtsa onhtreR bu yahkcre,'.unpack('v12c').pack('n12c')
+
+print 'uJtsa onhtreR bu yahkcre,'.gsub(/(.)(.?)/, '\2\1')
+
+'uJtsa onhtreR bu yahkcre,'.scan(/(.)(.?)/){|x,y| print y+x}
+
+print 'Just another Ruby hacker,'['Just another Ruby hacker,']
+
+print 'Just another Ruby hacker,'[/.*/]
+
+print [].push('Just ', 'another ', 'Ruby ', 'hacker,')
+
+print 'Just another Ruby hacker,'[0..-1]
+
+print 'Just another Ruby hacker,'.instance_eval{self}
+
+class String; def +@() print self end; +'Just another Ruby hacker,' end
+
+print '1J2u3s4t5 6a7n8o9t0h1e2r3 4R5u6b7y8 9h0a1c2k3e4r5,'.delete('0-9')
+
+'Jaubsctd eafngohtihjekrl mRnuobpyq rhsatcukvewrx,y'.gsub(/(.)./, '\1').display
+
+#$><<{'Just another Ruby hacker,'=>''}.default=0
+
+print eval('Just another Ruby hacker,'.dump)
+
+print 'Just another Ruby hacker'.concat(?,)
+
+print 'Just another Ruby hacker,'.intern.to_s
+
+print 'Just another Ruby hacker,'.dump[1..-2]
+
+'Just another Ruby hacker,'.each_line do |x| print x end
+
+['JUST ANOTHER ', 'RUBY HACKER,'].each do |x| print x.capitalize end
+
+printf '%.25s', 'Just another Ruby hacker,JARH'
+
+print 'Just another Ruby hacker,'.split(/Z/)[0]
+
+print 'Just another Ruby hacker,'.split(//)
+
+print %w.J u s t \ a n o t h e r \ R u b y \ h a c k e r ,.
+
+print String([%[Just another Ruby hacker,]])
+
+print catch(:x){throw :x, 'Just another Ruby hacker,'}
+
+r,w = IO::pipe;w.print 'Just another Ruby hacker,';w.close;print r.gets
+
+print sprintf('%s', format('%s' % '%s', 'Just another Ruby hacker,'))
+
+print eval('Just another Ruby hacker,'.inspect)
+
+/#{print 'Just another Ruby hacker,'}/
+
+print 'Just another Ruby hacker,'.scan(/./).collect{|x|x[0]}.pack('U*')
+
+print 'Just another Ruby hacker,'.scan(/./).pack('a'*25)
+
+'Just another Ruby hacker,'.send 'yalpsid'.reverse.intern
+
+print %w.Just another Ruby Ruby Ruby hacker,..uniq.join(' ')
+
+{}.fetch(:x){'Just another Ruby hacker,'}.display
+
+{}.delete(:x){'Just another Ruby hacker,'}.display
+
+print [:x].map{'Just another Ruby hacker,'}
+
+{'Ruby hacker,'=>'Just another'}.each{|*x|print x.reverse.join(' ')}
+
+print [].unshift('Ruby hacker,').unshift('Just another').join(' ')
+
+{3=>'Ruby ',2=>'another ',4=>'hacker,',1=>'Just '}.values_at(1,2,3,4).display
+
+print [[0,'Just another Ruby hacker,'],1].first.last
+
+{''=>'JARH'}.update(''=>'Just another Ruby hacker,').display
+
+{:JARH => 'Just another Ruby hacker,'}.values.display
+
+{'Just another Ruby hacker,'=>:JARH}.invert[:JARH].display
+
+print ['Just another Ruby hacker,'=>:JARH][0].keys
+
+print [{}].slice(0..0)[0].store('', 'Just another Ruby hacker,')
+
+print 'Just another Ruby hacker,'.split.join(' ')
+
+begin print 'Just another Ruby hacker,' end while false
+
+begin rescue then else print 'Just another Ruby hacker,' end
+
+print //.match('Just another Ruby hacker,').string
+
+callcc{print 'Just another Ruby hacker,'}
+
+Thread.start{print'Just another Ruby hacker,'}.join
+
+('JARH'..'Just another Ruby hacker,').end.display
+
+('Just another'..'Ruby hacker,').to_s.tr_s('.', ' ').display
+
+unless true then else 'Just another Ruby hacker,' end.display
+
+loop do print 'Just another Ruby hacker,'; break end 
+
+1.times do print 'Just another Ruby hacker,' end
+
+0.upto(0) do print 'Just another Ruby hacker,' end
+
+0.downto(0) do print 'Just another Ruby hacker,' end
+
+print Struct.new('Just_another_Ruby_hacker').to_s.split(':')[2].tr('_',' '),','
+
+def (x='Just another Ruby hacker,').foo() print self end; x.foo
+
+begin print 'Just another Ruby hacker,' end until true
+
+for i in %w[Just\  another\  Ruby\  hacker,] do print i end
+
+'Just another Ruby hacker,'.each_byte do |x| putc x end
+
+',rekcah ybuR rehtona tsuJ'.scan(/./).reverse_each do |x| putc x end
+
+print Regexp.quote('Just another Ruby hacker,').delete('\\')
+
+print true ? "Just another Ruby hacker," :-P
+
+print true ? "Just another Ruby hacker," :-D
+
+print *("Just another Ruby hacker,".."Just another Ruby hacker,").to_a
+
+print eval(%<%%Just another Ruby hacker,%>)
+
+print case when true then "Just another Ruby hacker," end
+
+print %w[Just another Ruby hacker,] * " "
+
+begin end if print "Just another Ruby hacker,"
+
+print begin "Just another Ruby hacker," end
+
+print "Just another Ruby hacker,".center(10000).strip
+
+print "Just " or print "another " or print "Ruby " or print "hacker,"
+
+print :"Just another Ruby hacker," 
+
diff --git a/test/scanners/ruby/jarh.out.raydebug b/test/scanners/ruby/jarh.out.raydebug
new file mode 100644
index 0000000..a1eb7fc
--- /dev/null
+++ b/test/scanners/ruby/jarh.out.raydebug
@@ -0,0 +1,371 @@
+
+ident(print) string<delimiter(')content(,rekcah ybuR rehtona tsuJ)delimiter(')>operator(.)ident(reverse)
+
+ident(print) string<delimiter(%q/)content(92G5S="!A;F]T:&5R(%\)U8GD@:&%C:V5R+```)delimiter(/)>operator(.)ident(unpack)operator(()string<delimiter(')content(u)delimiter(')>operator(\))
+
+ident(print) string<delimiter(%q/)content(SnVzdCBhbm90aGVyIFJ1YnkgaGFja2VyLA==)delimiter(/)>operator(.)ident(unpack)operator(()string<delimiter(')content(m)delimiter(')>operator(\))
+
+ident(print) string<delimiter(')content(Whfg nabgure Ehol unpxre,)delimiter(')>operator(.)ident(tr)operator(()string<delimiter(')content(A-Za-z)delimiter(')>operator(,) string<delimiter(')content(N-ZA-Mn-za-m)delimiter(')>operator(\))
+
+ident(print)operator(()operator({)string<delimiter(')content(ruby)delimiter(')> operator(=)operator(>) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})operator([)string<delimiter(')content(ruby)delimiter(')>operator(])operator(\))
+
+ident(print) string<delimiter(')content(jUsT aNoThEr )delimiter(')>operator(.)ident(capitalize)operator(,) string<delimiter(')content(RuBy HaCkEr,)delimiter(')>operator(.)ident(capitalize)
+
+ident(print) operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])operator([)integer(0)operator(])
+
+ident(print) operator([)string<delimiter(')content(hacker,)delimiter(')>operator(,) string<delimiter(')content(Ruby )delimiter(')>operator(,) string<delimiter(')content(another )delimiter(')>operator(,) string<delimiter(')content(Just )delimiter(')>operator(])operator(.)ident(reverse)
+
+ident(proc) operator({)ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})operator(.)ident(call)
+
+reserved(def) method(pri)operator(()operator(\)) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)operator(;) ident(pri)
+
+reserved(for) ident(i) reserved(in) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(do) ident(print) ident(i) reserved(end)
+
+ident(print) shell<delimiter(`)content(echo -n Just another Ruby hacker,)delimiter(`)>
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(split)operator(()string<delimiter(')delimiter(')>operator(\))
+
+ident(print) string<delimiter(')content(JQust aQnotQher RQuby hQackQer,)delimiter(')>operator(.)ident(delete)operator(()string<delimiter(')content(Q)delimiter(')>operator(\))
+
+string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content((.\))delimiter(/)>operator(\)) operator({)ident(print) global_variable($1)operator(})
+
+ident(print) string<delimiter(')content(Just )delimiter(')> operator(+) string<delimiter(')content(another )delimiter(')> operator(+) string<delimiter(')content(Ruby )delimiter(')> operator(+) string<delimiter(')content(hacker,)delimiter(')>
+
+ident(print) operator([)string<delimiter(')content(4a75737420616e6f746865722052756279206861636b65722c)delimiter(')>operator(])operator(.)ident(pack)operator(()string<delimiter(')content(H*)delimiter(')>operator(\))
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(split)operator(()regexp<delimiter(/)content((.\))delimiter(/)>operator(\))
+
+ident(print) string<delimiter(%w()content(Just another Ruby hacker,)delimiter(\))>operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+
+ident(print)operator(()operator({)string<delimiter(')content(another )delimiter(')>operator(=)operator(>)string<delimiter(')content(Just )delimiter(')>operator(,) string<delimiter(')content(hacker,)delimiter(')>operator(=)operator(>)string<delimiter(')content(Ruby )delimiter(')>operator(})operator(.)ident(invert)operator(.)ident(sort)operator(\))
+
+ident(print) ident(eval)operator(()string<delimiter(%-)content(eval %: %|Just another Ruby hacker,| :)delimiter(-)>operator(\))
+
+comment(#;eval %qPprint eval %-eval %:'Just another Ruby hacker,' :-P)
+
+ident(print) constant(Hash)operator(.)ident(new)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator([)symbol(:Ruby)operator(])
+
+ident(print) operator([)string<delimiter(')content(Just )delimiter(')>operator(,) operator([)string<delimiter(')content(another )delimiter(')>operator(,) operator([)string<delimiter(')content(Ruby )delimiter(')>operator(,) operator([)string<delimiter(')content(hacker,)delimiter(')>operator(])operator(])operator(])operator(])operator(.)ident(flatten)
+
+ident(print) constant(Struct)operator(.)ident(new)operator(()operator(*)string<delimiter(%w|)content(Ruby Just another Ruby hacker,)delimiter(|)>operator(\))operator([)operator(*)operator([)integer(0)operator(])operator(*)integer(4)operator(])operator(.)ident(members)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+
+ident(print) constant(Time)operator(.)ident(now)operator(.)ident(strftime)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))
+
+ident(print) string<delimiter(")content(   Just another Ruby hacker,    )char(\\r)char(\\n)delimiter(")>operator(.)ident(strip)
+
+ident(print) operator([)string<delimiter(')content(Just )delimiter(')>operator(,) pre_constant(nil)operator(,) string<delimiter(')content(another )delimiter(')>operator(,) pre_constant(nil)operator(,) string<delimiter(')content(Ruby )delimiter(')>operator(,) pre_constant(nil)operator(,) string<delimiter(')content(hacker,)delimiter(')>operator(])operator(.)ident(compact)
+
+operator([)string<delimiter(')content(hacker,)delimiter(')>operator(,) string<delimiter(')content(Ruby )delimiter(')>operator(,) string<delimiter(')content(another )delimiter(')>operator(,) string<delimiter(')content(Just )delimiter(')>operator(])operator(.)ident(reverse_each) reserved(do) operator(|)ident(x)operator(|) ident(print) ident(x) reserved(end)
+
+regexp<delimiter(/)content(Just another Ruby hacker,)delimiter(/)>operator(.)ident(source)operator(.)ident(display)
+
+ident(send) symbol(:print)operator(,) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>
+
+ident(print) operator([)string<delimiter(')content(Just )delimiter(')>operator(,) string<delimiter(')content(another )delimiter(')>operator(,) string<delimiter(')content(Ruby )delimiter(')>operator(]) operator(|) operator([)string<delimiter(')content(another )delimiter(')>operator(,) string<delimiter(')content(Ruby )delimiter(')>operator(,) string<delimiter(')content(hacker,)delimiter(')>operator(])
+
+ident(print) operator([)string<delimiter(')content(Just )delimiter(')>operator(,) string<delimiter(')content(another )delimiter(')>operator(,) string<delimiter(')content(Perl)delimiter(')>operator(,) string<delimiter(')content(Ruby )delimiter(')>operator(,) string<delimiter(')content(hacker,)delimiter(')>operator(]) operator(-) operator([)string<delimiter(')content(Perl)delimiter(')>operator(])
+
+ident(print) operator([)operator([)string<delimiter(')delimiter(')>operator(,) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])operator(])operator(.)ident(assoc)operator(()string<delimiter(')delimiter(')>operator(\))
+
+ident(print) operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])operator(.)ident(pack)operator(()string<delimiter(')content(a*)delimiter(')>operator(\))
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(unpack)operator(()string<delimiter(')content(a*)delimiter(')>operator(\))
+
+ident(print) operator([)operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])operator(.)ident(pop)operator(])operator(.)ident(sort)operator(.)ident(shift)
+
+ident(print) operator([)operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(,) string<delimiter(')delimiter(')>operator(])operator(])operator(.)ident(rassoc)operator(()string<delimiter(')delimiter(')>operator(\))
+
+operator({)string<delimiter(')content(Just another )delimiter(')> operator(=)operator(>) string<delimiter(')content(Ruby hacker,)delimiter(')>operator(})operator(.)ident(to_a)operator(.)ident(display)
+
+ident(print) string<delimiter(')content(Just another Ruby hackeq,)delimiter(')>operator(.)ident(succ)
+
+ident(print) string<delimiter(')content(jUST ANOTHER rUBY HACKER,)delimiter(')>operator(.)ident(swapcase)
+
+ident(print) operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])operator(.)ident(find) operator({)operator(|)ident(x)operator(|) ident(x)operator(})
+
+ident(print) string<delimiter(%w()content(Just another Ruby hacker,)delimiter(\))>operator(.)ident(find_all) operator({)operator(|)ident(x)operator(|) ident(x)operator(})operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+
+ident(print) string<delimiter(%w()content(Just another Ruby hacker,)delimiter(\))>operator(.)ident(grep)operator(()regexp<delimiter(/)content(.)delimiter(/)>operator(\))operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+
+constant(Ruby) operator(=) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(and) ident(print) constant(Object)operator(.)ident(const_get)operator(()symbol(:Ruby)operator(\))
+
+constant(Proc)operator(.)ident(new) operator({)ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})operator([)operator(])
+
+ident(print) string<delimiter(')content(JJuusstt  aannootthheerr  RRuubbyy  hhaacckkeerr,,)delimiter(')>operator(.)ident(squeeze)
+
+ident(print) operator([)integer(1249211252)operator(,) integer(543256175)operator(,) integer(1952998770)operator(,) integer(542274914)operator(,) integer(2032167009)operator(,) integer(1667982706)operator(])operator(.)ident(pack)operator(()string<delimiter(')content(N*)delimiter(')>operator(\))operator(,) string<delimiter(')content(,)delimiter(')>
+
+global_variable($>) operator(<<) string<delimiter(')content(Just )delimiter(')> operator(<<) string<delimiter(')content(another )delimiter(')> operator(<<) string<delimiter(')content(Ruby )delimiter(')> operator(<<) string<delimiter(')content(hacker,)delimiter(')>
+
+integer(5)operator(.)ident(times) reserved(do)operator(|)ident(i)operator(|)string<delimiter(')content(Jaebcunrykso  ettRhr hua,)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(.{5})delimiter(/)>operator(\)) reserved(do) ident(print) global_variable($&)operator([)ident(i)operator(,)integer(1)operator(]) reserved(end) reserved(end)
+
+ident(a)operator(=)string<delimiter(')content(,rekcah ybuR rehtona tsuJ)delimiter(')>operator(.)ident(split)operator(()string<delimiter(')delimiter(')>operator(\))operator(;)ident(print) ident(a)operator(.)ident(pop) reserved(while) reserved(not) ident(a)operator(.)ident(empty?)
+
+ident(print) string<delimiter(')content(,Pr-eok,c"a$h! kypbquuRA %roeqhbtaoon;ab rtesbujJ&)delimiter(')>operator(.)ident(gsub)operator(()regexp<delimiter(/)content((.\).)delimiter(/)>operator(,) string<delimiter(')content(\\1)delimiter(')>operator(\))operator(.)ident(reverse)
+
+ident(print) regexp<delimiter(/)content(.*)delimiter(/)>operator(.)ident(match)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))
+
+ident(print) global_variable($&) reserved(if) regexp<delimiter(/)content(.*)delimiter(/)> operator(===) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>
+
+reserved(case) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(when) regexp<delimiter(/)content(.*)delimiter(/)>operator(;) ident(print) global_variable($~)operator([)integer(0)operator(]) reserved(end)
+
+ident(print) constant(Marshal)operator(.)ident(load)operator(()constant(Marshal)operator(.)ident(dump)operator(()string<delimiter(")content(Just another Ruby hacker,)delimiter(")>operator(\))operator(\))
+
+string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(each_byte) reserved(do) operator(|)ident(x)operator(|) ident(print) ident(x)operator(.)ident(chr) reserved(end)
+
+ident(print) string<delimiter(')content(/hacker,/another /Ruby /Just )delimiter(')>operator(.)ident(split)operator(()string<delimiter(')content(/)delimiter(')>operator(\))operator(.)ident(sort)operator(.)ident(values_at)operator(()integer(1)operator(,)integer(3)operator(,)integer(2)operator(,)integer(4)operator(\))
+
+ident(print) string<delimiter(')content(Just another Perl hacker,)delimiter(')>operator(.)ident(sub)operator(()string<delimiter(')content(Perl)delimiter(')>operator(,) string<delimiter(')content(Ruby)delimiter(')>operator(\))
+
+comment(#$><<'RbyckJust another,'.split(''\).values_at(5..16,9,0,6,1,2,9,14,10,3,4,15..17\))
+
+operator(()string<delimiter(')content(a)delimiter(')>operator(..)string<delimiter(')content(y)delimiter(')>operator(\))operator(.)ident(to_a)operator(.)ident(join)operator(.)ident(tr)operator(()string<delimiter(')content(a-y)delimiter(')>operator(,)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(.)ident(display)
+
+reserved(begin) ident(print) string<delimiter(')content(Just another )delimiter(')> reserved(ensure) ident(print) string<delimiter(')content(Ruby hacker,)delimiter(')> reserved(end)
+
+string<delimiter(')content(J,ursetk caanho tyhbeurR  Rruebhyt ohnaac ktesru,J)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(.(.\))delimiter(/)>operator(\))operator(.)ident(reverse)operator(.)ident(display)
+
+string<delimiter(')content(J,ursetk caanho tyhbeurR  Rruebhyt ohnaac ktesru,J)delimiter(')>operator(.)ident(gsub)operator(()regexp<delimiter(/)content((.\).)delimiter(/)>operator(,)string<delimiter(')content(\\1)delimiter(')>operator(\))operator(.)ident(display)
+
+ident(a)operator(=)string<delimiter(')content(J,ursetk caanho tyhbeurR )delimiter(')>operator(;)integer(0)operator(.)ident(step)operator(()integer(24)operator(,)integer(2)operator(\))operator({)operator(|)ident(i)operator(|)ident(print) ident(a)operator([)ident(i)operator(,)integer(1)operator(])operator(})operator(;)integer(23)operator(.)ident(step)operator(()integer(1)operator(,)integer(-2)operator(\))operator({)operator(|)ident(i)operator(|)ident(print) ident(a)operator([)ident(i)operator(,)integer(1)operator(])operator(})
+
+ident(a)operator(=)string<delimiter(')content(Js nte uyhce,rka bRrhoatu)delimiter(')>operator(.)ident(split)operator(()string<delimiter(')delimiter(')>operator(\))operator(;)integer(12)operator(.)ident(times)operator({)ident(print) ident(a)operator(.)ident(shift)operator(,)ident(a)operator(.)ident(pop)operator(})operator(;)ident(print) ident(a)
+
+ident(a)operator(=)string<delimiter(')content(Js nte uyhce,rka bRrhoatu)delimiter(')>operator(;)reserved(begin) ident(a)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(^(.\)(.*\)(.\)$)delimiter(/)>operator(\))operator({)ident(print) global_variable($1)operator(,)global_variable($3)operator(;)global_variable($2)operator(})reserved(end) reserved(while)global_variable($1)operator(;)ident(print) ident(a)
+
+ident(a)operator(=)string<delimiter(')content(J Ruby hacker,ust another)delimiter(')>operator(;)integer(11)operator(.)ident(times)operator({)ident(a)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(^(.\)(.*\)(.\)$)delimiter(/)>operator(,)string<delimiter(')content(\\1)content(\\3)content(\\2)delimiter(')>operator(\))operator(})operator(;)ident(print) ident(a)
+
+ident(print) string<delimiter(')content(Just. another! -Ruby? $hacker,)delimiter(')>operator(.)ident(tr_s)operator(()string<delimiter(')content(-.!?$ )delimiter(')>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+
+string<delimiter(')content( e m r,yJaRnafatbpcuekewhjhskvngohrlrxsctdtiubuoyq)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content((.\)(.\))delimiter(/)>operator(\))operator(.)ident(collect!)operator({)operator(|)ident(x)operator(|)operator([)ident(x)operator([)integer(1)operator(])operator(,)ident(x)operator([)integer(0)operator(])operator(])operator(})operator(.)ident(sort)operator(.)ident(collect!)operator({)operator(|)ident(x)operator(|)ident(x)operator([)integer(1)operator(])operator(})operator(.)ident(display)
+
+string<delimiter(')content(e m r y,aJnRfatapbuckewejhshvkgnholrxrcsdtitbuouqy)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(..)delimiter(/)>operator(\))operator(.)ident(sort)operator(.)ident(collect!)operator({)operator(|)ident(x)operator(|)ident(x)operator([)integer(1)operator(,)integer(1)operator(])operator(})operator(.)ident(display)
+
+string<delimiter(')content(4a75737420616e6f746865722052756279206861636b65722c)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(..)delimiter(/)>operator(\))operator({)ident(print) global_variable($&)operator(.)ident(hex)operator(.)ident(chr)operator(})
+
+ident(print) operator([)string<delimiter(')content(Just another Perl hacker,)delimiter(')>operator(])operator(.)ident(fill)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))
+
+global_variable($>)operator(<<)operator({)integer(1)operator(=)operator(>)string<delimiter(')content(Just )delimiter(')>operator(,)integer(2)operator(=)operator(>)string<delimiter(')content(another )delimiter(')>operator(,)integer(3)operator(=)operator(>)string<delimiter(')content(Ruby )delimiter(')>operator(,)integer(4)operator(=)operator(>)string<delimiter(')content(hacker,)delimiter(')>operator(})operator(.)ident(sort)operator(.)ident(to_s)operator(.)ident(delete)operator(()string<delimiter(')content(1-4)delimiter(')>operator(\))
+
+constant(Kernel)operator(.)ident(print) string<delimiter(%q<)content(Just another Ruby hacker,)delimiter(>)>
+
+reserved(class) class(Just_another_Ruby_hackerq)operator(;)reserved(end)operator(;)ident(print) constant(Just_another_Ruby_hackerq)operator(.)ident(to_s)operator(.)ident(tr)operator(()string<delimiter(')content(_q)delimiter(')>operator(,)string<delimiter(')content( ,)delimiter(')>operator(\))
+
+constant(Kust_another_Ruby_hacker)operator(=)integer(0)operator(;)ident(print) constant(Module)operator(.)ident(constants)operator(.)ident(grep)operator(()regexp<delimiter(/)content(Kust)delimiter(/)>operator(\))operator([)integer(0)operator(])operator(.)ident(tr)operator(()string<delimiter(')content(K_)delimiter(')>operator(,)string<delimiter(')content(J )delimiter(')>operator(\))operator(,) string<delimiter(')content(,)delimiter(')>
+
+reserved(module) class(Lust_another_Ruby_hackerq)operator(;) ident(print) ident(name)operator(.)ident(tr)operator(()string<delimiter(')content(L_q)delimiter(')>operator(,) string<delimiter(')content(J ,)delimiter(')>operator(\)) reserved(end)
+
+reserved(class) class(Bar)operator(;) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+reserved(class) class(Baz)operator(;) reserved(def) method(initialize)operator(()operator(\)) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end) reserved(end)operator(;) constant(Baz)operator(.)ident(new)
+
+ident(eval) string<delimiter(")content(A<'\)I;G0@\)TIU<W0@86YO=&AE<B!2=6\)Y(&AA8VME<BPG)delimiter(")>operator(.)ident(unpack)operator(()string<delimiter(')content(u)delimiter(')>operator(\))operator([)integer(0)operator(])
+
+ident(eval) string<delimiter(")content(cHJpbnQgJ0p1c3QgYW5vdGhlciBSdWJ5IGhhY2tlciwn)delimiter(")>operator(.)ident(unpack)operator(()string<delimiter(')content(m)delimiter(')>operator(\))operator([)integer(0)operator(])
+
+global_variable($stdout)operator(.)ident(write) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>
+
+string<delimiter(")content(Just )char(\\n)content(another )char(\\n)content(Ruby )char(\\n)content(hacker,)char(\\n)delimiter(")>operator(.)ident(each) reserved(do) operator(|)ident(x)operator(|) ident(print) ident(x)operator(.)ident(chomp) reserved(end)
+
+ident(print) global_variable($') reserved(if) regexp<delimiter(/)char(\\n)delimiter(/)modifier(x)> operator(===) string<delimiter(")char(\\n)content(Just another Ruby hacker,)delimiter(")>
+
+ident(raise) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(rescue) ident(print) global_variable($!)
+
+ident(print) constant(File)operator(.)ident(basename)operator(()string<delimiter(')content(~/Just another Ruby hacker,.rb)delimiter(')>operator(,)string<delimiter(')content(.*)delimiter(')>operator(\))
+
+ident(proc)operator({)operator(|)ident(x)operator(|)ident(x)operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])operator(})operator([)ident(proc)operator({)operator(|)ident(x)operator(|)ident(print) ident(x)operator(})operator(])
+
+ident(method)operator(()symbol(:print)operator(\))operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])
+
+string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(method)operator(()symbol(:display)operator(\))operator([)operator(])
+
+ident(print) string<delimiter(')delimiter(')>operator(.)ident(replace)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))
+
+ident(instance_eval) reserved(do) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+constant(Kernel)operator(.)ident(module_eval) reserved(do) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+ident(print) string<delimiter(%%)char(\\%)content(s)delimiter(%)>operator(%)string<delimiter(%%)content(Just another Ruby hacker,)delimiter(%)>operator(%)string<delimiter(%%)delimiter(%)>operator(%)string<delimiter(%%)delimiter(%)>
+
+ident(print) operator(!)integer(??)operator(?)integer(??)operator(:)integer(??)operator(?)string<delimiter(%?)content(Just another Ruby hacker,)delimiter(?)>operator(:)integer(??)
+
+comment(#({}.default='Just another Ruby hacker,'\)[0].display)
+
+ident(print) constant(Hash)operator([)string<delimiter(')content(Just another )delimiter(')>operator(,) string<delimiter(')content(Ruby hacker,)delimiter(')>operator(])
+
+ident(print) string<delimiter(')content(Just )delimiter(')> string<delimiter(')content(another )delimiter(')> string<delimiter(')content(Ruby )delimiter(')> string<delimiter(')content(hacker,)delimiter(')>
+
+ident(print) constant(File)operator(.)ident(dirname)operator(()string<delimiter(')content(Just another Ruby hacker,/Just another Ruby porter,)delimiter(')>operator(\))
+
+reserved(def) global_variable($_)operator(.)ident(singleton_method_added)operator(()operator(*)operator(\)) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+ident(print) operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])operator(.)ident(delete_at)operator(()integer(0)operator(\))
+
+ident(print) string<delimiter(')content(%s %s %s %s)delimiter(')> operator(%) string<delimiter(%w[)content(Just another Ruby hacker,)delimiter(])>
+
+string<delimiter(')content(cker,by haer RuanothJust )delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(.{5})delimiter(/)>operator(\))operator(.)ident(reverse)operator(.)ident(display)
+
+operator(()integer(97)operator(..)integer(121)operator(\))operator(.)ident(to_a)operator(.)ident(pack)operator(()string<delimiter(')content(c*)delimiter(')>operator(\))operator(.)ident(tr)operator(()string<delimiter(')content(a-y)delimiter(')>operator(,)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(.)ident(display)
+
+string<delimiter(')content(abcdefghijklmnopqrstuvwxy)delimiter(')>operator(.)ident(tr)operator(()string<delimiter(')content(a-y)delimiter(')>operator(,)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(.)ident(display)
+
+string<delimiter(')content(,rekcah ybuR rehtona tsuJ)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(.{1})delimiter(/)>operator(\))operator(.)ident(reverse)operator(.)ident(display)
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(%)string<delimiter(%;)content( (^_^)delimiter(;)>operator(;)operator(;)
+
+ident(print)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(%) string<delimiter(%-)content( ;)delimiter(-)>operator(\))
+
+string<delimiter(')content(r,keac hbyRur heotant usJ)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(.{1,2})delimiter(/)>operator(\))operator(.)ident(reverse)operator(.)ident(display)
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> operator(*) operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')> operator(=)operator(~) regexp<delimiter(/)content(u)delimiter(/)>operator(\))
+
+ident(print) string<delimiter(')content(uJtsa onhtreR bu yahkcre,)delimiter(')>operator(.)ident(unpack)operator(()string<delimiter(')content(v12c)delimiter(')>operator(\))operator(.)ident(pack)operator(()string<delimiter(')content(n12c)delimiter(')>operator(\))
+
+ident(print) string<delimiter(')content(uJtsa onhtreR bu yahkcre,)delimiter(')>operator(.)ident(gsub)operator(()regexp<delimiter(/)content((.\)(.?\))delimiter(/)>operator(,) string<delimiter(')content(\\2)content(\\1)delimiter(')>operator(\))
+
+string<delimiter(')content(uJtsa onhtreR bu yahkcre,)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content((.\)(.?\))delimiter(/)>operator(\))operator({)operator(|)ident(x)operator(,)ident(y)operator(|) ident(print) ident(y)operator(+)ident(x)operator(})
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator([)regexp<delimiter(/)content(.*)delimiter(/)>operator(])
+
+ident(print) operator([)operator(])operator(.)ident(push)operator(()string<delimiter(')content(Just )delimiter(')>operator(,) string<delimiter(')content(another )delimiter(')>operator(,) string<delimiter(')content(Ruby )delimiter(')>operator(,) string<delimiter(')content(hacker,)delimiter(')>operator(\))
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator([)integer(0)operator(..)integer(-1)operator(])
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(instance_eval)operator({)pre_constant(self)operator(})
+
+reserved(class) class(String)operator(;) reserved(def) method(+@)operator(()operator(\)) ident(print) pre_constant(self) reserved(end)operator(;) operator(+)string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+ident(print) string<delimiter(')content(1J2u3s4t5 6a7n8o9t0h1e2r3 4R5u6b7y8 9h0a1c2k3e4r5,)delimiter(')>operator(.)ident(delete)operator(()string<delimiter(')content(0-9)delimiter(')>operator(\))
+
+string<delimiter(')content(Jaubsctd eafngohtihjekrl mRnuobpyq rhsatcukvewrx,y)delimiter(')>operator(.)ident(gsub)operator(()regexp<delimiter(/)content((.\).)delimiter(/)>operator(,) string<delimiter(')content(\\1)delimiter(')>operator(\))operator(.)ident(display)
+
+comment(#$><<{'Just another Ruby hacker,'=>''}.default=0)
+
+ident(print) ident(eval)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(dump)operator(\))
+
+ident(print) string<delimiter(')content(Just another Ruby hacker)delimiter(')>operator(.)ident(concat)operator(()integer(?,)operator(\))
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(intern)operator(.)ident(to_s)
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(dump)operator([)integer(1)operator(..)integer(-2)operator(])
+
+string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(each_line) reserved(do) operator(|)ident(x)operator(|) ident(print) ident(x) reserved(end)
+
+operator([)string<delimiter(')content(JUST ANOTHER )delimiter(')>operator(,) string<delimiter(')content(RUBY HACKER,)delimiter(')>operator(])operator(.)ident(each) reserved(do) operator(|)ident(x)operator(|) ident(print) ident(x)operator(.)ident(capitalize) reserved(end)
+
+ident(printf) string<delimiter(')content(%.25s)delimiter(')>operator(,) string<delimiter(')content(Just another Ruby hacker,JARH)delimiter(')>
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(split)operator(()regexp<delimiter(/)content(Z)delimiter(/)>operator(\))operator([)integer(0)operator(])
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(split)operator(()regexp<delimiter(/)delimiter(/)>operator(\))
+
+ident(print) string<delimiter(%w.)content(J u s t )content(\\ )content(a n o t h e r )content(\\ )content(R u b y )content(\\ )content(h a c k e r ,)delimiter(.)>
+
+ident(print) ident(String)operator(()operator([)string<delimiter(%[)content(Just another Ruby hacker,)delimiter(])>operator(])operator(\))
+
+ident(print) ident(catch)operator(()symbol(:x)operator(\))operator({)ident(throw) symbol(:x)operator(,) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})
+
+ident(r)operator(,)ident(w) operator(=) constant(IO)operator(::)ident(pipe)operator(;)ident(w)operator(.)ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(;)ident(w)operator(.)ident(close)operator(;)ident(print) ident(r)operator(.)ident(gets)
+
+ident(print) ident(sprintf)operator(()string<delimiter(')content(%s)delimiter(')>operator(,) ident(format)operator(()string<delimiter(')content(%s)delimiter(')> operator(%) string<delimiter(')content(%s)delimiter(')>operator(,) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(\))
+
+ident(print) ident(eval)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(inspect)operator(\))
+
+regexp<delimiter(/)inline<delimiter(#{)ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>delimiter(})>delimiter(/)>
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(.)delimiter(/)>operator(\))operator(.)ident(collect)operator({)operator(|)ident(x)operator(|)ident(x)operator([)integer(0)operator(])operator(})operator(.)ident(pack)operator(()string<delimiter(')content(U*)delimiter(')>operator(\))
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(.)delimiter(/)>operator(\))operator(.)ident(pack)operator(()string<delimiter(')content(a)delimiter(')>operator(*)integer(25)operator(\))
+
+string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(send) string<delimiter(')content(yalpsid)delimiter(')>operator(.)ident(reverse)operator(.)ident(intern)
+
+ident(print) string<delimiter(%w.)content(Just another Ruby Ruby Ruby hacker,)delimiter(.)>operator(.)ident(uniq)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+
+operator({)operator(})operator(.)ident(fetch)operator(()symbol(:x)operator(\))operator({)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})operator(.)ident(display)
+
+operator({)operator(})operator(.)ident(delete)operator(()symbol(:x)operator(\))operator({)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})operator(.)ident(display)
+
+ident(print) operator([)symbol(:x)operator(])operator(.)ident(map)operator({)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})
+
+operator({)string<delimiter(')content(Ruby hacker,)delimiter(')>operator(=)operator(>)string<delimiter(')content(Just another)delimiter(')>operator(})operator(.)ident(each)operator({)operator(|*)ident(x)operator(|)ident(print) ident(x)operator(.)ident(reverse)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))operator(})
+
+ident(print) operator([)operator(])operator(.)ident(unshift)operator(()string<delimiter(')content(Ruby hacker,)delimiter(')>operator(\))operator(.)ident(unshift)operator(()string<delimiter(')content(Just another)delimiter(')>operator(\))operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+
+operator({)integer(3)operator(=)operator(>)string<delimiter(')content(Ruby )delimiter(')>operator(,)integer(2)operator(=)operator(>)string<delimiter(')content(another )delimiter(')>operator(,)integer(4)operator(=)operator(>)string<delimiter(')content(hacker,)delimiter(')>operator(,)integer(1)operator(=)operator(>)string<delimiter(')content(Just )delimiter(')>operator(})operator(.)ident(values_at)operator(()integer(1)operator(,)integer(2)operator(,)integer(3)operator(,)integer(4)operator(\))operator(.)ident(display)
+
+ident(print) operator([)operator([)integer(0)operator(,)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(])operator(,)integer(1)operator(])operator(.)ident(first)operator(.)ident(last)
+
+operator({)string<delimiter(')delimiter(')>operator(=)operator(>)string<delimiter(')content(JARH)delimiter(')>operator(})operator(.)ident(update)operator(()string<delimiter(')delimiter(')>operator(=)operator(>)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(.)ident(display)
+
+operator({)symbol(:JARH) operator(=)operator(>) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})operator(.)ident(values)operator(.)ident(display)
+
+operator({)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(=)operator(>)symbol(:JARH)operator(})operator(.)ident(invert)operator([)symbol(:JARH)operator(])operator(.)ident(display)
+
+ident(print) operator([)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(=)operator(>)symbol(:JARH)operator(])operator([)integer(0)operator(])operator(.)ident(keys)
+
+ident(print) operator([)operator({)operator(})operator(])operator(.)ident(slice)operator(()integer(0)operator(..)integer(0)operator(\))operator([)integer(0)operator(])operator(.)ident(store)operator(()string<delimiter(')delimiter(')>operator(,) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))
+
+ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(split)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+
+reserved(begin) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end) reserved(while) pre_constant(false)
+
+reserved(begin) reserved(rescue) reserved(then) reserved(else) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+ident(print) regexp<delimiter(/)delimiter(/)>operator(.)ident(match)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(.)ident(string)
+
+ident(callcc)operator({)ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})
+
+constant(Thread)operator(.)ident(start)operator({)ident(print)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(})operator(.)ident(join)
+
+operator(()string<delimiter(')content(JARH)delimiter(')>operator(..)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(.)ident(end)operator(.)ident(display)
+
+operator(()string<delimiter(')content(Just another)delimiter(')>operator(..)string<delimiter(')content(Ruby hacker,)delimiter(')>operator(\))operator(.)ident(to_s)operator(.)ident(tr_s)operator(()string<delimiter(')content(.)delimiter(')>operator(,) string<delimiter(')content( )delimiter(')>operator(\))operator(.)ident(display)
+
+reserved(unless) pre_constant(true) reserved(then) reserved(else) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)operator(.)ident(display)
+
+ident(loop) reserved(do) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(;) reserved(break) reserved(end) 
+
+integer(1)operator(.)ident(times) reserved(do) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+integer(0)operator(.)ident(upto)operator(()integer(0)operator(\)) reserved(do) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+integer(0)operator(.)ident(downto)operator(()integer(0)operator(\)) reserved(do) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end)
+
+ident(print) constant(Struct)operator(.)ident(new)operator(()string<delimiter(')content(Just_another_Ruby_hacker)delimiter(')>operator(\))operator(.)ident(to_s)operator(.)ident(split)operator(()string<delimiter(')content(:)delimiter(')>operator(\))operator([)integer(2)operator(])operator(.)ident(tr)operator(()string<delimiter(')content(_)delimiter(')>operator(,)string<delimiter(')content( )delimiter(')>operator(\))operator(,)string<delimiter(')content(,)delimiter(')>
+
+reserved(def) operator(()ident(x)operator(=)string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(.)ident(foo)operator(()operator(\)) ident(print) pre_constant(self) reserved(end)operator(;) ident(x)operator(.)ident(foo)
+
+reserved(begin) ident(print) string<delimiter(')content(Just another Ruby hacker,)delimiter(')> reserved(end) reserved(until) pre_constant(true)
+
+reserved(for) ident(i) reserved(in) string<delimiter(%w[)content(Just)content(\\ )content( another)content(\\ )content( Ruby)content(\\ )content( hacker,)delimiter(])> reserved(do) ident(print) ident(i) reserved(end)
+
+string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(.)ident(each_byte) reserved(do) operator(|)ident(x)operator(|) ident(putc) ident(x) reserved(end)
+
+string<delimiter(')content(,rekcah ybuR rehtona tsuJ)delimiter(')>operator(.)ident(scan)operator(()regexp<delimiter(/)content(.)delimiter(/)>operator(\))operator(.)ident(reverse_each) reserved(do) operator(|)ident(x)operator(|) ident(putc) ident(x) reserved(end)
+
+ident(print) constant(Regexp)operator(.)ident(quote)operator(()string<delimiter(')content(Just another Ruby hacker,)delimiter(')>operator(\))operator(.)ident(delete)operator(()string<delimiter(')char(\\\\)delimiter(')>operator(\))
+
+ident(print) pre_constant(true) operator(?) string<delimiter(")content(Just another Ruby hacker,)delimiter(")> symbol(:-)constant(P)
+
+ident(print) pre_constant(true) operator(?) string<delimiter(")content(Just another Ruby hacker,)delimiter(")> symbol(:-)constant(D)
+
+ident(print) operator(*)operator(()string<delimiter(")content(Just another Ruby hacker,)delimiter(")>operator(..)string<delimiter(")content(Just another Ruby hacker,)delimiter(")>operator(\))operator(.)ident(to_a)
+
+ident(print) ident(eval)operator(()string<delimiter(%<)content(%%Just another Ruby hacker,%)delimiter(>)>operator(\))
+
+ident(print) reserved(case) reserved(when) pre_constant(true) reserved(then) string<delimiter(")content(Just another Ruby hacker,)delimiter(")> reserved(end)
+
+ident(print) string<delimiter(%w[)content(Just another Ruby hacker,)delimiter(])> operator(*) string<delimiter(")content( )delimiter(")>
+
+reserved(begin) reserved(end) reserved(if) ident(print) string<delimiter(")content(Just another Ruby hacker,)delimiter(")>
+
+ident(print) reserved(begin) string<delimiter(")content(Just another Ruby hacker,)delimiter(")> reserved(end)
+
+ident(print) string<delimiter(")content(Just another Ruby hacker,)delimiter(")>operator(.)ident(center)operator(()integer(10000)operator(\))operator(.)ident(strip)
+
+ident(print) string<delimiter(")content(Just )delimiter(")> reserved(or) ident(print) string<delimiter(")content(another )delimiter(")> reserved(or) ident(print) string<delimiter(")content(Ruby )delimiter(")> reserved(or) ident(print) string<delimiter(")content(hacker,)delimiter(")>
+
+ident(print) symbol<symbol(:)delimiter(")content(Just another Ruby hacker,)delimiter(")> 
+
diff --git a/test/scanners/ruby/open-heredoc.in.rb b/test/scanners/ruby/open-heredoc.in.rb
new file mode 100644
index 0000000..9089080
--- /dev/null
+++ b/test/scanners/ruby/open-heredoc.in.rb
@@ -0,0 +1 @@
+<<''
diff --git a/test/scanners/ruby/open-heredoc.out.raydebug b/test/scanners/ruby/open-heredoc.out.raydebug
new file mode 100644
index 0000000..72fae77
--- /dev/null
+++ b/test/scanners/ruby/open-heredoc.out.raydebug
@@ -0,0 +1,2 @@
+string<delimiter(<<'')>string<delimiter(
+)>
+\ No newline at end of file
diff --git a/test/scanners/ruby/open-inline.in.rb b/test/scanners/ruby/open-inline.in.rb
new file mode 100644
index 0000000..529907e
--- /dev/null
+++ b/test/scanners/ruby/open-inline.in.rb
@@ -0,0 +1 @@
+"#{
diff --git a/test/scanners/ruby/open-inline.out.raydebug b/test/scanners/ruby/open-inline.out.raydebug
new file mode 100644
index 0000000..03af29e
--- /dev/null
+++ b/test/scanners/ruby/open-inline.out.raydebug
@@ -0,0 +1,2 @@
+string<delimiter(")inline<delimiter(#{)
+>>
+\ No newline at end of file
diff --git a/test/scanners/ruby/open-string.in.rb b/test/scanners/ruby/open-string.in.rb
new file mode 100644
index 0000000..897afad
--- /dev/null
+++ b/test/scanners/ruby/open-string.in.rb
@@ -0,0 +1 @@
+'\
diff --git a/test/scanners/ruby/open-string.out.raydebug b/test/scanners/ruby/open-string.out.raydebug
new file mode 100644
index 0000000..e44c295
--- /dev/null
+++ b/test/scanners/ruby/open-string.out.raydebug
@@ -0,0 +1,2 @@
+string<delimiter(')content(\\
+)>
+\ No newline at end of file
diff --git a/test/scanners/ruby/pleac.in.rb b/test/scanners/ruby/pleac.in.rb
new file mode 100644
index 0000000..0f967b9
--- /dev/null
+++ b/test/scanners/ruby/pleac.in.rb
@@ -0,0 +1,6368 @@
+# -*- ruby -*-
+
+# Local variables:
+#  indent-tabs-mode: nil
+#  ruby-indent-level: 4
+# End:
+
+# @@PLEAC@@_NAME
+# @@SKIP@@ Ruby
+
+# @@PLEAC@@_WEB
+# @@SKIP@@ http://www.ruby-lang.org
+
+
+# @@PLEAC@@_1.0
+string = '\n'                     # two characters, \ and an n
+string = 'Jon \'Maddog\' Orwant'  # literal single quotes
+
+string = "\n"                     # a "newline" character
+string = "Jon \"Maddog\" Orwant"  # literal double quotes
+
+string = %q/Jon 'Maddog' Orwant/  # literal single quotes
+
+string = %q[Jon 'Maddog' Orwant]  # literal single quotes
+string = %q{Jon 'Maddog' Orwant}  # literal single quotes
+string = %q(Jon 'Maddog' Orwant)  # literal single quotes
+string = %q<Jon 'Maddog' Orwant>  # literal single quotes
+
+a = <<"EOF"
+This is a multiline here document
+terminated by EOF on a line by itself
+EOF
+
+
+# @@PLEAC@@_1.1
+value = string[offset,count]
+value = string[offset..-1]
+
+string[offset,count] = newstring
+string[offset..-1]   = newtail
+
+# in Ruby we can also specify intervals by their two offsets
+value = string[offset..offs2]
+string[offset..offs2] = newstring
+
+leading, s1, s2, trailing = data.unpack("A5 x3 A8 A8 A*")
+
+fivers = string.unpack("A5" * (string.length/5))
+
+chars = string.unpack("A1" * string.length)
+
+string = "This is what you have"
+#        +012345678901234567890  Indexing forwards  (left to right)
+#         109876543210987654321- Indexing backwards (right to left)
+#          note that 0 means 10 or 20, etc. above
+
+first  = string[0, 1]       # "T"
+start  = string[5, 2]       # "is"
+rest   = string[13..-1]     # "you have"
+last   = string[-1, 1]      # "e"
+end_   = string[-4..-1]     # "have"
+piece  = string[-8, 3]      # "you"
+
+string[5, 2] = "wasn't"     # change "is" to "wasn't"
+string[-12..-1] = "ondrous" # "This wasn't wondrous"
+string[0, 1] = ""           # delete first character
+string[-10..-1]  = ""       # delete last 10 characters
+
+if string[-10..-1] =~ /pattern/
+    puts "Pattern matches in last 10 characters"
+end
+
+string[0, 5].gsub!(/is/, 'at')
+
+a = "make a hat"
+a[0, 1], a[-1, 1] = a[-1, 1], a[0, 1]
+
+a = "To be or not to be"
+b = a.unpack("x6 A6")
+
+b, c = a.unpack("x6 A2 X5 A2")
+puts "#{b}\n#{c}\n"
+
+def cut2fmt(*args)
+    template = ''
+    lastpos  = 1
+    for place in args
+        template += "A" + (place - lastpos).to_s + " "
+        lastpos   = place
+    end
+    template += "A*"
+    return template
+end
+
+fmt = cut2fmt(8, 14, 20, 26, 30)
+
+
+# @@PLEAC@@_1.2
+# careful! "b is true" doesn't mean "b != 0" (0 is true in Ruby)
+# thus no problem of "defined" later since only nil is false
+# the following sets to `c' if `b' is nil or false
+a = b || c
+
+# if you need Perl's behaviour (setting to `c' if `b' is 0) the most
+# effective way is to use Numeric#nonzero? (thanks to Dave Thomas!)
+a = b.nonzero? || c
+
+# you will still want to use defined? in order to test
+# for scope existence of a given object
+a = defined?(b) ? b : c
+
+dir = ARGV.shift || "/tmp"
+
+
+# @@PLEAC@@_1.3
+v1, v2 = v2, v1
+
+alpha, beta, production = %w(January March August)
+alpha, beta, production = beta, production, alpha
+
+
+# @@PLEAC@@_1.4
+num = char[0]
+char = num.chr
+
+# Ruby also supports having a char from character constant
+num = ?r
+
+char = sprintf("%c", num)
+printf("Number %d is character %c\n", num, num)
+
+ascii = string.unpack("C*")
+string = ascii.pack("C*")
+
+hal = "HAL"
+ascii = hal.unpack("C*")
+# We can't use Array#each since we can't mutate a Fixnum
+ascii.collect! { |i|
+    i + 1                         # add one to each ASCII value
+}                
+ibm = ascii.pack("C*")
+puts ibm
+
+
+# @@PLEAC@@_1.5
+array = string.split('')
+
+array = string.unpack("C*")
+
+string.scan(/./) { |b|
+    # do something with b
+}
+
+string = "an apple a day"
+print "unique chars are: ", string.split('').uniq.sort, "\n"
+
+sum = 0
+for ascval in string.unpack("C*") # or use Array#each for a pure OO style :)
+    sum += ascval
+end
+puts "sum is #{sum & 0xffffffff}" # since Ruby will go Bignum if necessary
+
+# @@INCLUDE@@ include/ruby/slowcat.rb
+
+
+# @@PLEAC@@_1.6
+revbytes = string.reverse
+
+revwords = string.split(" ").reverse.join(" ")
+
+revwords = string.split(/(\s+)/).reverse.join
+
+# using the fact that IO is Enumerable, you can directly "select" it
+long_palindromes = File.open("/usr/share/dict/words").
+    select { |w| w.chomp!; w.reverse == w && w.length > 5 }
+
+
+# @@PLEAC@@_1.7
+while string.sub!("\t+") { ' ' * ($&.length * 8 - $`.length % 8) }
+end
+
+
+# @@PLEAC@@_1.8
+'You owe #{debt} to me'.gsub(/\#{(\w+)}/) { eval($1) }
+
+rows, cols = 24, 80
+text = %q(I am #{rows} high and #{cols} long)
+text.gsub!(/\#{(\w+)}/) { eval("#{$1}") }
+puts text
+
+'I am 17 years old'.gsub(/\d+/) { 2 * $&.to_i }
+
+
+# @@PLEAC@@_1.9
+e = "bo peep".upcase
+e.downcase!
+e.capitalize!
+
+"thIS is a loNG liNE".gsub!(/\w+/) { $&.capitalize }
+
+
+# @@PLEAC@@_1.10
+"I have #{n+1} guanacos."
+print "I have ", n+1, " guanacos."
+
+
+# @@PLEAC@@_1.11
+var = <<'EOF'.gsub(/^\s+/, '')
+    your text
+    goes here
+EOF
+
+
+# @@PLEAC@@_1.12
+string = "Folding and splicing is the work of an editor,\n"+
+    "not a mere collection of silicon\n"+ 
+    "and\n"+
+    "mobile electrons!"
+
+def wrap(str, max_size)
+    all = []
+    line = ''
+    for l in str.split
+        if (line+l).length >= max_size
+            all.push(line)
+            line = ''
+        end
+        line += line == '' ? l : ' ' + l
+    end
+    all.push(line).join("\n")
+end
+
+print wrap(string, 20)
+#=> Folding and 
+#=> splicing is the 
+#=> work of an editor, 
+#=> not a mere 
+#=> collection of 
+#=> silicon and mobile 
+#=> electrons!
+
+
+# @@PLEAC@@_1.13
+string = %q(Mom said, "Don't do that.")
+string.gsub(/['"]/) { '\\'+$& }
+string.gsub(/['"]/, '\&\&')
+string.gsub(/[^A-Z]/) { '\\'+$& }
+"is a test!".gsub(/\W/) { '\\'+$& }  # no function like quotemeta?
+
+
+# @@PLEAC@@_1.14
+string.strip!
+
+
+# @@PLEAC@@_1.15
+def parse_csv(text)
+    new = text.scan(/"([^\"\\]*(?:\\.[^\"\\]*)*)",?|([^,]+),?|,/)
+    new << nil if text[-1] == ?,
+    new.flatten.compact
+end  
+
+line = %q<XYZZY,"","O'Reilly, Inc","Wall, Larry","a \"glug\" bit,",5,"Error, Core Dumped">
+fields = parse_csv(line)
+fields.each_with_index { |v,i|
+    print "#{i} : #{v}\n";
+}
+
+
+# @@PLEAC@@_1.16
+# Use the soundex.rb Library from Michael Neumann.
+# http://www.s-direktnet.de/homepages/neumann/rb_prgs/Soundex.rb
+require 'Soundex'
+
+code = Text::Soundex.soundex(string)
+codes = Text::Soundex.soundex(array)
+
+# substitution function for getpwent():
+# returns an array of user entries,
+# each entry contains the username and the full name
+def login_names
+    result = []
+    File.open("/etc/passwd") { |file|
+        file.each_line { |line|
+            next if line.match(/^#/)
+            cols = line.split(":")
+            result.push([cols[0], cols[4]])
+        }
+    }
+    result
+end
+
+puts "Lookup user: "
+user = STDIN.gets
+user.chomp!
+exit unless user
+name_code = Text::Soundex.soundex(user)
+
+splitter = Regexp.new('(\w+)[^,]*\b(\w+)')
+for username, fullname in login_names do
+    firstname, lastname = splitter.match(fullname)[1,2]
+    if name_code == Text::Soundex.soundex(username)
+        || name_code == Text::Soundex.soundex(firstname)
+        || name_code == Text::Soundex.soundex(lastname)
+    then
+        puts "#{username}: #{firstname} #{lastname}"
+    end
+end
+
+
+# @@PLEAC@@_1.17
+# @@INCLUDE@@ include/ruby/fixstyle.rb
+
+
+# @@PLEAC@@_1.18
+# @@INCLUDE@@ include/ruby/psgrep.rb
+
+
+# @@PLEAC@@_2.1
+# Matz tells that you can use Integer() for strict checked conversion.
+Integer("abc")
+#=> `Integer': invalid value for Integer: "abc" (ArgumentError)
+Integer("567")
+#=> 567
+
+# You may use Float() for floating point stuff
+Integer("56.7")
+#=> `Integer': invalid value for Integer: "56.7" (ArgumentError)
+Float("56.7")
+#=> 56.7
+
+# You may also use a regexp for that
+if string =~ /^[+-]?\d+$/
+    p 'is an integer'
+else
+    p 'is not'
+end
+
+if string =~ /^-?(?:\d+(?:\.\d*)?|\.\d+)$/
+    p 'is a decimal number'
+else
+    p 'is not'
+end
+
+
+# @@PLEAC@@_2.2
+# equal(num1, num2, accuracy) : returns true if num1 and num2 are
+#   equal to accuracy number of decimal places
+def equal(i, j, a)
+    sprintf("%.#{a}g", i) == sprintf("%.#{a}g", j)
+end
+
+wage = 536                        # $5.36/hour
+week = 40 * wage                  # $214.40
+printf("One week's wage is: \$%.2f\n", week/100.0)
+
+
+# @@PLEAC@@_2.3
+num.round                         # rounds to integer
+
+a = 0.255
+b = sprintf("%.2f", a)
+print  "Unrounded: #{a}\nRounded: #{b}\n"
+printf "Unrounded: #{a}\nRounded: %.2f\n", a
+
+print "number\tint\tfloor\tceil\n"
+a = [ 3.3 , 3.5 , 3.7, -3.3 ]
+for n in a
+    printf("% .1f\t% .1f\t% .1f\t% .1f\n",  # at least I don't fake my output :)
+           n, n.to_i, n.floor, n.ceil)
+end
+
+
+# @@PLEAC@@_2.4
+def dec2bin(n)
+    [n].pack("N").unpack("B32")[0].sub(/^0+(?=\d)/, '')
+end
+
+def bin2dec(n)
+    [("0"*32+n.to_s)[-32..-1]].pack("B32").unpack("N")[0]
+end
+
+
+# @@PLEAC@@_2.5
+for i in x .. y
+    # i is set to every integer from x to y, inclusive
+end
+
+x.step(y,7) { |i|
+    # i is set to every integer from x to y, stepsize = 7
+}
+
+print "Infancy is: "
+(0..2).each { |i|
+    print i, " "
+}
+print "\n"
+
+
+# @@PLEAC@@_2.6
+# We can add conversion methods to the Integer class,
+# this makes a roman number just a representation for normal numbers.
+class Integer
+    
+    @@romanlist = [["M", 1000],
+                   ["CM", 900],
+                   ["D",  500],
+                   ["CD", 400],
+                   ["C",  100],
+                   ["XC",  90],
+                   ["L",   50],
+                   ["XL",  40],
+                   ["X",   10],
+                   ["IX",   9],
+                   ["V",    5],
+                   ["IV",   4],
+                   ["I",    1]]
+    
+    def to_roman
+        remains = self
+        roman = ""
+        for sym, num in @@romanlist
+            while remains >= num
+                remains -= num
+                roman << sym
+            end
+        end
+        roman
+    end
+    
+    def Integer.from_roman(roman)
+        ustr = roman.upcase
+        sum = 0
+        for entry in @@romanlist
+            sym, num = entry[0], entry[1]
+            while sym == ustr[0, sym.length]
+                sum += num
+                ustr.slice!(0, sym.length)
+            end
+        end
+        sum
+    end
+    
+end
+
+
+roman_fifteen = 15.to_roman
+puts "Roman for fifteen is #{roman_fifteen}"
+i = Integer.from_roman(roman_fifteen)
+puts "Converted back, #{roman_fifteen} is #{i}"
+
+# check
+for i in (1..3900)
+    r = i.to_roman
+    j = Integer.from_roman(r)
+    if i != j
+        puts "error: #{i} : #{r} - #{j}"
+    end
+end
+
+
+# @@PLEAC@@_2.7
+random = rand(y-x+1)+x
+
+chars = ["A".."Z","a".."z","0".."9"].collect { |r| r.to_a }.join + %q(!@$%^&*)
+password = (1..8).collect { chars[rand(chars.size)] }.pack("C*")
+
+
+# @@PLEAC@@_2.8
+srand        # uses a combination of the time, the process id, and a sequence number
+srand(val)   # for repeatable behaviour
+
+
+# @@PLEAC@@_2.9
+# from the randomr lib: 
+# http://raa.ruby-lang.org/project/randomr/
+----> http://raa.ruby-lang.org/project/randomr/
+
+require 'random/mersenne_twister'
+mers = Random::MersenneTwister.new 123456789
+puts mers.rand(0)    # 0.550321932544541
+puts mers.rand(10)   # 2
+
+# using online sources of random data via the realrand package:
+# http://raa.ruby-lang.org/project/realrand/
+# **Note**
+# The following online services are used in this package:
+#   http://www.random.org - source: atmospheric noise 
+#   http://www.fourmilab.ch/hotbits - source: radioactive decay timings
+#   http://random.hd.org - source: entropy from local and network noise
+# Please visit the sites and respect the rules of each service.
+
+require 'random/online'
+
+generator1 = Random::RandomOrg.new
+puts generator1.randbyte(5).join(",")
+puts generator1.randnum(10, 1, 6).join(",")  # Roll dice 10 times.
+
+generator2 = Random::FourmiLab.new
+puts generator2.randbyte(5).join(",")
+# randnum is not supported.
+
+generator3 = Random::EntropyPool.new
+puts generator3.randbyte(5).join(",")
+# randnum is not supported.
+
+
+# @@PLEAC@@_2.10
+def gaussian_rand
+    begin
+        u1 = 2 * rand() - 1
+        u2 = 2 * rand() - 1
+        w = u1*u1 + u2*u2
+    end while (w >= 1)
+    w = Math.sqrt((-2*Math.log(w))/w)
+    [ u2*w, u1*w ]
+end
+
+mean = 25
+sdev = 2
+salary = gaussian_rand[0] * sdev + mean
+printf("You have been hired at \$%.2f\n", salary)
+
+
+# @@PLEAC@@_2.11
+def deg2rad(d)
+    (d/180.0)*Math::PI
+end
+
+def rad2deg(r)
+    (r/Math::PI)*180
+end
+
+
+# @@PLEAC@@_2.12
+sin_val = Math.sin(angle)
+cos_val = Math.cos(angle)
+tan_val = Math.tan(angle)
+
+# AFAIK Ruby's Math module doesn't provide acos/asin
+# While we're at it, let's also define missing hyperbolic functions
+module Math
+    def Math.asin(x)
+        atan2(x, sqrt(1 - x**2))
+    end
+    def Math.acos(x)
+        atan2(sqrt(1 - x**2), x)
+    end
+    def Math.atan(x)
+        atan2(x, 1)
+    end
+    def Math.sinh(x)
+        (exp(x) - exp(-x)) / 2
+    end
+    def Math.cosh(x)
+        (exp(x) + exp(-x)) / 2
+    end
+    def Math.tanh(x)
+        sinh(x) / cosh(x)
+    end
+end
+
+# The support for Complex numbers is not built-in
+y = Math.acos(3.7)
+#=> in `sqrt': square root for negative number (ArgumentError)
+
+# There is an implementation of Complex numbers in 'complex.rb' in current
+# Ruby distro, but it doesn't support atan2 with complex args, so it doesn't
+# solve this problem.
+
+
+# @@PLEAC@@_2.13
+log_e = Math.log(val)
+log_10 = Math.log10(val)
+
+def log_base(base, val)
+    Math.log(val)/Math.log(base)
+end
+
+answer = log_base(10, 10_000)
+puts "log10(10,000) = #{answer}"
+
+
+# @@PLEAC@@_2.14
+require 'matrix.rb'
+
+a = Matrix[[3, 2, 3], [5, 9, 8]]
+b = Matrix[[4, 7], [9, 3], [8, 1]]
+c = a * b
+
+a.row_size
+a.column_size
+
+c.det
+a.transpose
+
+
+# @@PLEAC@@_2.15
+require 'complex.rb'
+require 'rational.rb'
+
+a = Complex(3, 5)              # 3 + 5i
+b = Complex(2, -2)             # 2 - 2i
+puts "c = #{a*b}"
+
+c = a * b
+d = 3 + 4*Complex::I
+
+printf "sqrt(#{d}) = %s\n", Math.sqrt(d)
+
+
+# @@PLEAC@@_2.16
+number = hexadecimal.hex
+number = octal.oct
+
+print "Gimme a number in decimal, octal, or hex: "
+num = gets.chomp
+exit unless defined?(num)
+num = num.oct if num =~ /^0/  # does both oct and hex  
+printf "%d %x %o\n", num, num, num
+
+print "Enter file permission in octal: "
+permissions = gets.chomp
+raise "Exiting ...\n" unless defined?(permissions)
+puts "The decimal value is #{permissions.oct}"
+
+
+# @@PLEAC@@_2.17
+def commify(n)
+    n.to_s =~ /([^\.]*)(\..*)?/
+    int, dec = $1.reverse, $2 ? $2 : ""
+    while int.gsub!(/(,|\.|^)(\d{3})(\d)/, '\1\2,\3')
+    end
+    int.reverse + dec
+end
+
+
+# @@PLEAC@@_2.18
+printf "It took %d hour%s\n", time, time == 1 ? "" : "s"
+
+# dunno if an equivalent to Lingua::EN::Inflect exists...
+
+
+# @@PLEAC@@_2.19
+#-----------------------------
+#!/usr/bin/ruby
+# bigfact - calculating prime factors
+def factorize(orig)
+    factors = {}
+    factors.default = 0     # return 0 instead nil if key not found in hash
+    n = orig
+    i = 2
+    sqi = 4                 # square of i
+    while sqi <= n do
+        while n.modulo(i) == 0 do
+            n /= i
+            factors[i] += 1
+            # puts "Found factor #{i}"
+        end
+        # we take advantage of the fact that (i +1)**2 = i**2 + 2*i +1
+        sqi += 2 * i + 1
+        i += 1
+    end
+    
+    if (n != 1) && (n != orig)
+        factors[n] += 1
+    end
+    factors
+end
+
+def printfactorhash(orig, factorcount)
+    print format("%-10d ", orig)
+    if factorcount.length == 0
+        print "PRIME"
+    else
+        # sorts after number, because the hash keys are numbers
+        factorcount.sort.each { |factor,exponent|
+            print factor
+            if exponent > 1
+                print "**", exponent
+            end
+            print " "
+        }
+    end
+    puts
+end
+
+for arg in ARGV
+    n = arg.to_i
+    mfactors = factorize(n)
+    printfactorhash(n, mfactors)
+end
+#-----------------------------
+
+
+# @@PLEAC@@_3.0
+puts Time.now
+
+print "Today is day ", Time.now.yday, " of the current year.\n"
+print "Today is day ", Time.now.day, " of the current month.\n"
+
+
+# @@PLEAC@@_3.1
+day, month, year = Time.now.day, Time.now.month, Time.now.year
+# or
+day, month, year = Time.now.to_a[3..5]
+
+tl = Time.now.localtime
+printf("The current date is %04d %02d %02d\n", tl.year, tl.month, tl.day)
+
+Time.now.localtime.strftime("%Y-%m-%d")
+
+
+# @@PLEAC@@_3.2
+Time.local(year, month, day, hour, minute, second).tv_sec
+Time.gm(year, month, day, hour, minute, second).tv_sec
+
+
+# @@PLEAC@@_3.3
+sec, min, hour, day, month, year, wday, yday, isdst, zone = Time.at(epoch_secs).to_a
+
+
+# @@PLEAC@@_3.4
+when_ = now + difference         # now -> Time ; difference -> Numeric (delta in seconds)
+then_ = now - difference
+
+
+# @@PLEAC@@_3.5
+bree = 361535725
+nat  =  96201950
+
+difference = bree - nat
+puts "There were #{difference} seconds between Nat and Bree"
+
+seconds    =  difference % 60
+difference = (difference - seconds) / 60
+minutes    =  difference % 60
+difference = (difference - minutes) / 60
+hours      =  difference % 24
+difference = (difference - hours)   / 24
+days       =  difference % 7
+weeks      = (difference - days)    /  7
+
+puts "(#{weeks} weeks, #{days} days, #{hours}:#{minutes}:#{seconds})"
+
+
+# @@PLEAC@@_3.6
+monthday, weekday, yearday = date.mday, date.wday, date.yday
+
+# AFAIK the week number is not just a division since week boundaries are on sundays
+weeknum = d.strftime("%U").to_i + 1
+
+year  = 1981
+month = "jun"                     # or `6' if you want to emulate a broken language
+day   = 16
+t = Time.mktime(year, month, day)
+print "#{month}/#{day}/#{year} was a ", t.strftime("%A"), "\n"
+
+
+# @@PLEAC@@_3.7
+yyyy, mm, dd = $1, $2, $3 if "1998-06-25" =~ /(\d+)-(\d+)-(\d+)/
+
+epoch_seconds = Time.mktime(yyyy, mm, dd).tv_sec
+
+# dunno an equivalent to Date::Manip#ParseDate
+
+
+# @@PLEAC@@_3.8
+string = Time.at(epoch_secs)
+Time.at(1234567890).gmtime        # gives: Fri Feb 13 23:31:30 UTC 2009
+
+time = Time.mktime(1973, "jan", 18, 3, 45, 50)
+print "In localtime it gives: ", time.localtime, "\n"
+
+
+# @@PLEAC@@_3.9
+# Ruby provides micro-seconds in Time object
+Time.now.usec
+
+# Ruby gives the seconds in floating format when substracting two Time objects
+before = Time.now
+line = gets
+elapsed = Time.now - before
+puts "You took #{elapsed} seconds."
+
+# On my Celeron-400 with Linux-2.2.19-14mdk, average for three execs are:
+#   This Ruby version:       average 0.00321 sec
+#   Cookbook's Perl version: average 0.00981 sec
+size = 500
+number_of_times = 100
+total_time = 0
+number_of_times.times {
+    # populate array
+    array = []
+    size.times { array << rand }
+    # sort it
+    begin_ = Time.now
+    array.sort!
+    time = Time.now - begin_
+    total_time += time
+}
+printf "On average, sorting %d random numbers takes %.5f seconds\n",
+    size, (total_time/Float(number_of_times))
+
+
+# @@PLEAC@@_3.10
+sleep(0.005)                      # Ruby is definitely not as broken as Perl :)
+# (may be interrupted by sending the process a SIGALRM)
+
+
+# @@PLEAC@@_3.11
+#!/usr/bin/ruby -w
+# hopdelta - feed mail header, produce lines
+#            showing delay at each hop.
+require 'time'
+class MailHopDelta
+
+    def initialize(mail)
+        @head = mail.gsub(/\n\s+/,' ')
+        @topline = %w-Sender Recipient Time Delta-
+        @start_from = mail.match(/^From.*\@([^\s>]*)/)[1]
+        @date = Time.parse(mail.match(/^Date:\s+(.*)/)[1])
+    end
+
+    def out(line)
+         "%-20.20s %-20.20s %-20.20s  %s" % line
+    end
+
+    def hop_date(day)
+        day.strftime("%I:%M:%S %Y/%m/%d")
+    end
+
+    def puts_hops
+        puts out(@topline) 
+        puts out(['Start', @start_from, hop_date(@date),''])
+        @head.split(/\n/).reverse.grep(/^Received:/).each do |hop|
+            hop.gsub!(/\bon (.*?) (id.*)/,'; \1')
+            whence = hop.match(/;\s+(.*)$/)[1]
+            unless whence
+                warn "Bad received line: #{hop}"
+                next
+            end
+            from = $+ if hop =~ /from\s+(\S+)|\((.*?)\)/
+            by   = $1 if hop =~ /by\s+(\S+\.\S+)/
+            next unless now = Time.parse(whence).localtime
+            delta = now - @date
+            puts out([from, by, hop_date(now), hop_time(delta)])
+            @date = now
+        end
+    end
+
+    def hop_time(secs)
+        sign = secs < 0 ? -1 : 1
+        days, secs = secs.abs.divmod(60 * 60 * 24)
+        hours,secs = secs.abs.divmod(60 * 60)
+        mins, secs = secs.abs.divmod(60)
+        rtn =  "%3ds" % [secs  * sign]
+        rtn << "%3dm" % [mins  * sign] if mins  != 0
+        rtn << "%3dh" % [hours * sign] if hours != 0
+        rtn << "%3dd" % [days  * sign] if days  != 0 
+        rtn
+    end
+end
+
+$/ = ""
+mail = MailHopDelta.new(ARGF.gets).puts_hops
+
+
+# @@PLEAC@@_4.0
+single_level = [ "this", "that", "the", "other" ]
+
+# Ruby directly supports nested arrays
+double_level = [ "this", "that", [ "the", "other" ] ]
+still_single_level = [ "this", "that", [ "the", "other" ] ].flatten
+
+
+# @@PLEAC@@_4.1
+a = [ "quick", "brown", "fox" ]
+a = %w(Why are you teasing me?)
+
+lines = <<"END_OF_HERE_DOC".gsub(/^\s*(.+)/, '\1')
+    The boy stood on the burning deck,
+    It was as hot as glass.
+END_OF_HERE_DOC
+
+bigarray = IO.readlines("mydatafile").collect { |l| l.chomp }
+
+name = "Gandalf"
+banner = %Q(Speak, #{name}, and welcome!)
+
+host_info  = `host #{his_host}`
+
+%x(ps #{$$})
+
+banner = 'Costs only $4.95'.split(' ')
+
+rax = %w! ( ) < > { } [ ] !
+
+
+# @@PLEAC@@_4.2
+def commify_series(arr)
+    return '' if not arr
+    case arr.size
+        when 0 then ''
+        when 1 then arr[0]
+        when 2 then arr.join(' and ')
+        else arr[0..-2].join(', ') + ', and ' + arr[-1]
+    end
+end
+
+array = [ "red", "yellow", "green" ]
+
+print "I have ", array, " marbles\n"
+# -> I have redyellowgreen marbles
+
+# But unlike Perl:
+print "I have #{array} marbles\n"
+# -> I have redyellowgreen marbles
+# So, needs:
+print "I have #{array.join(' ')} marbles\n"
+# -> I have red yellow green marbles
+
+#!/usr/bin/ruby
+# communify_series - show proper comma insertion in list output
+
+def commify_series(arr)
+    return '' if not arr
+    sepchar = arr.find { |p| p =~ /,/ } ? '; ' : ', '
+    case arr.size
+        when 0 then ''
+        when 1 then arr[0]
+        when 2 then arr.join(' and ')
+        else arr[0..-2].join(sepchar) + sepchar + 'and ' + arr[-1]
+    end
+end
+
+lists = [
+    [ 'just one thing' ],
+    %w(Mutt Jeff),
+    %w(Peter Paul Mary),
+    [ 'To our parents', 'Mother Theresa', 'God' ],
+    [ 'pastrami', 'ham and cheese', 'peanut butter and jelly', 'tuna' ],
+    [ 'recycle tired, old phrases', 'ponder big, happy thoughts' ],
+    [ 'recycle tired, old phrases',
+      'ponder big, happy thoughts',
+      'sleep and dream peacefully' ],
+]
+
+for list in lists do
+    puts "The list is: #{commify_series(list)}."
+end
+
+
+# @@PLEAC@@_4.3
+#   (note: AFAIK Ruby doesn't allow gory change of Array length)
+# grow the array by assigning nil to past the end of array
+ary[new_size-1] = nil
+# shrink the array by slicing it down
+ary.slice!(new_size..-1)
+# init the array with given size
+Array.new(number_of_elems)
+# assign to an element past the original end enlarges the array
+ary[index_new_last_elem] = value
+
+def what_about_that_array(a)
+    print "The array now has ", a.size, " elements.\n"
+    # Index of last element is not really interesting in Ruby
+    print "Element #3 is `#{a[3]}'.\n"
+end
+people = %w(Crosby Stills Nash Young)
+what_about_that_array(people)
+
+
+# @@PLEAC@@_4.4
+# OO style
+bad_users.each { |user|
+    complain(user)
+}
+# or, functional style
+for user in bad_users
+    complain(user)
+end
+
+for var in ENV.keys.sort
+    puts "#{var}=#{ENV[var]}"
+end
+
+for user in all_users
+    disk_space = get_usage(user)
+    if (disk_space > MAX_QUOTA)
+        complain(user)
+    end
+end
+
+for l in IO.popen("who").readlines
+    print l if l =~ /^gc/ 
+end
+
+# we can mimic the obfuscated Perl way
+while fh.gets               # $_ is set to the line just read
+    chomp                   # $_ has a trailing \n removed, if it had one
+    split.each { |w|        # $_ is split on whitespace
+                            # but $_ is not set to each chunk as in Perl
+        print w.reverse
+    }
+end
+# ...or use a cleaner way
+for l in fh.readlines
+    l.chomp.split.each { |w| print w.reverse }
+end
+
+# same drawback as in problem 1.4, we can't mutate a Numeric...
+array.collect! { |v| v - 1 }
+
+a = [ .5, 3 ]; b = [ 0, 1 ]
+for ary in [ a, b ]
+    ary.collect! { |v| v * 7 }
+end
+puts "#{a.join(' ')} #{b.join(' ')}"
+
+# we can mutate Strings, cool; we need a trick for the scalar
+for ary in [ [ scalar ], array, hash.values ]
+    ary.each { |v| v.strip! }     # String#strip rules :)
+end
+
+
+# @@PLEAC@@_4.5
+# not relevant in Ruby since we have always references
+for item in array
+    # do somethingh with item
+end
+
+
+# @@PLEAC@@_4.6
+unique = list.uniq
+
+# generate a list of users logged in, removing duplicates
+users = `who`.collect { |l| l =~ /(\w+)/; $1 }.sort.uniq
+puts("users logged in: #{commify_series(users)}")  # see 4.2 for commify_series
+
+
+# @@PLEAC@@_4.7
+a - b
+# [ 1, 1, 2, 2, 3, 3, 3, 4, 5 ] - [ 1, 2, 4 ]  ->  [3, 5]
+
+
+# @@PLEAC@@_4.8
+union = a | b
+intersection = a & b
+difference = a - b
+
+
+# @@PLEAC@@_4.9
+array1.concat(array2)
+# if you will assign to another object, better use:
+new_ary = array1 + array2
+
+members = [ "Time", "Flies" ]
+initiates =  [ "An", "Arrow" ]
+members += initiates
+
+members = [ "Time", "Flies" ]
+initiates = [ "An", "Arrow" ]
+members[2,0] = [ "Like", initiates ].flatten
+
+members[0] = "Fruit"
+members[3,2] = "A", "Banana"
+
+
+# @@PLEAC@@_4.10
+reversed = ary.reverse
+
+ary.reverse_each { |e|
+    # do something with e
+}
+
+descending = ary.sort.reverse
+descending = ary.sort { |a,b| b <=> a }
+
+
+# @@PLEAC@@_4.11
+# remove n elements from front of ary (shift n)
+front = ary.slice!(0, n)
+
+# remove n elements from the end of ary (pop n)
+end_ = ary.slice!(-n .. -1)
+
+# let's extend the Array class, to make that useful
+class Array
+    def shift2()
+        slice!(0 .. 1)     # more symetric with pop2...
+    end
+    def pop2()
+        slice!(-2 .. -1)
+    end
+end
+
+friends = %w(Peter Paul Mary Jim Tim)
+this, that = friends.shift2
+
+beverages = %w(Dew Jolt Cola Sprite Fresca)
+pair = beverages.pop2
+
+
+# @@PLEAC@@_4.12
+# use Enumerable#detect (or the synonym Enumerable#find)
+highest_eng = employees.detect { |emp| emp.category == 'engineer' }
+
+
+# @@PLEAC@@_4.13
+# use Enumerable#select (or the synonym Enumerable#find_all)
+bigs = nums.select { |i| i > 1_000_000 }
+pigs = users.keys.select { |k| users[k] > 1e7 }
+
+matching = `who`.select { |u| u =~ /^gnat / }
+
+engineers = employees.select { |e| e.position == 'Engineer' }
+
+secondary_assistance = applicants.select { |a|
+    a.income >= 26_000 && a.income < 30_000
+}
+
+
+# @@PLEAC@@_4.14
+# normally you would have an array of Numeric (Float or
+# Fixnum or Bignum), so you would use:
+sorted = unsorted.sort
+# if you have strings representing Integers or Floats
+# you may specify another sort method:
+sorted = unsorted.sort { |a,b| a.to_f <=> b.to_f }
+
+# let's use the list of my own PID's
+`ps ux`.split("\n")[1..-1].
+    select { |i| i =~ /^#{ENV['USER']}/ }.
+    collect { |i| i.split[1] }.
+    sort { |a,b| a.to_i <=> b.to_i }.each { |i| puts i }
+puts "Select a process ID to kill:"
+pid = gets.chomp
+raise "Exiting ... \n" unless pid && pid =~ /^\d+$/
+Process.kill('TERM', pid.to_i)
+sleep 2
+Process.kill('KILL', pid.to_i)
+
+descending = unsorted.sort { |a,b| b.to_f <=> a.to_f }
+
+
+# @@PLEAC@@_4.15
+ordered = unordered.sort { |a,b| compare(a,b) }
+
+precomputed = unordered.collect { |e| [compute, e] }
+ordered_precomputed = precomputed.sort { |a,b| a[0] <=> b[0] }
+ordered = ordered_precomputed.collect { |e| e[1] }
+
+ordered = unordered.collect { |e| [compute, e] }.
+    sort { |a,b| a[0] <=> b[0] }.
+    collect { |e| e[1] }
+
+for employee in employees.sort { |a,b| a.name <=> b.name }
+    print employee.name, " earns \$ ", employee.salary, "\n"
+end
+
+# Beware! `0' is true in Ruby.
+# For chaining comparisons, you may use Numeric#nonzero?, which
+# returns num if num is not zero, nil otherwise
+sorted = employees.sort { |a,b| (a.name <=> b.name).nonzero? || b.age <=> a.age }
+
+users = []
+# getpwent is not wrapped in Ruby... let's fallback
+IO.readlines('/etc/passwd').each { |u| users << u.split(':') }
+users.sort! { |a,b| a[0] <=> b[0] }
+for user in users
+    puts user[0]
+end
+
+sorted = names.sort { |a,b| a[1, 1] <=> b[1, 1] }
+sorted = strings.sort { |a,b| a.length <=> b.length }
+
+# let's show only the compact version
+ordered = strings.collect { |e| [e.length, e] }.
+    sort { |a,b| a[0] <=> b[0] }.
+    collect { |e| e[1] }
+
+ordered = strings.collect { |e| [/\d+/.match(e)[0].to_i, e] }.
+    sort { |a,b| a[0] <=> b[0] }.
+    collect { |e| e[1] }
+
+print `cat /etc/passwd`.collect { |e| [e, e.split(':').indexes(3,2,0)].flatten }.
+    sort { |a,b| (a[1] <=> b[1]).nonzero? || (a[2] <=> b[2]).nonzero? || a[3] <=> b[3] }.
+    collect { |e| e[0] }
+
+
+# @@PLEAC@@_4.16
+circular.unshift(circular.pop)        # the last shall be first
+circular.push(circular.shift)         # and vice versa
+
+def grab_and_rotate(l)
+    l.push(ret = l.shift)
+    ret
+end
+
+processes = [1, 2, 3, 4, 5]
+while (1)
+    process = grab_and_rotate(processes)
+    puts "Handling process #{process}"
+    sleep 1
+end
+
+
+# @@PLEAC@@_4.17
+def fisher_yates_shuffle(a)
+    (a.size-1).downto(1) { |i|
+        j = rand(i+1)
+        a[i], a[j] = a[j], a[i] if i != j
+    }
+end
+
+def naive_shuffle(a)
+    for i in 0...a.size
+        j = rand(a.size)
+        a[i], a[j] = a[j], a[i]
+    end
+end
+
+
+# @@PLEAC@@_4.18
+#!/usr/bin/env ruby
+# example 4-2 words
+# words - gather lines, present in colums
+
+# class to encapsulate the word formatting from the input
+class WordFormatter
+    def initialize(cols)
+        @cols = cols
+    end
+
+    # helper to return the length of the longest word in the wordlist
+    def maxlen(wordlist)
+        max = 1
+        for word in wordlist
+            if word.length > max
+                max = word.length
+            end
+        end
+        max
+    end
+
+    # process the wordlist and print it formmated into columns
+    def output(wordlist)
+        collen = maxlen(wordlist) + 1
+        columns = @cols / collen
+        columns = 1 if columns == 0
+        rows = (wordlist.length + columns - 1) / columns
+        # now process each item, picking out proper piece for this position
+        0.upto(rows * columns - 1) { |item|
+            target = (item % columns) * rows + (item / columns)
+            eol = ((item+1) % columns == 0)
+            piece = wordlist[target] || ""
+            piece = piece.ljust(collen) unless eol
+            print piece
+            puts if eol
+        }
+        # no need to finish it up, because eol is always true for the last element
+    end
+end
+
+# get nr of chars that fit in window or console, see PLEAC 15.4
+# not portable -- linux only (?)
+def getWinCharWidth()
+    buf = "\0" * 8
+    $stdout.ioctl(0x5413, buf)
+    ws_row, ws_col, ws_xpixel, ws_ypixel = buf.unpack("$4")
+    ws_col || 80
+rescue
+    80
+end
+
+# main program
+cols = getWinCharWidth()
+formatter = WordFormatter.new(cols)
+words = readlines()
+words.collect! { |line|
+    line.chomp
+}
+formatter.output(words)
+
+
+# @@PLEAC@@_4.19
+# In ruby, Fixnum's are automatically converted to Bignum's when
+# needed, so there is no need for an extra module
+def factorial(n)
+    s = 1
+    while n > 0
+        s *= n
+        n -= 1
+    end
+    s
+end
+
+puts factorial(500)
+
+#---------------------------------------------------------
+# Example 4-3. tsc-permute
+# tsc_permute: permute each word of input
+def permute(items, perms)
+    unless items.length > 0
+        puts perms.join(" ")
+    else
+        for i in items
+            newitems = items.dup
+            newperms = perms.dup
+            newperms.unshift(newitems.delete(i))
+            permute(newitems, newperms)
+        end
+    end
+end
+# In ruby the main program must be after all definitions it is using
+permute(ARGV, [])
+
+#---------------------------------------------------------
+# mjd_permute: permute each word of input
+
+def factorial(n)
+    s = 1
+    while n > 0
+        s *= n
+        n -= 1
+    end
+    s
+end
+
+# we use a class with a class variable store the private cache
+# for the results of the factorial function.
+class Factorial
+    @@fact = [ 1 ]
+    def Factorial.compute(n)
+        if @@fact[n]
+            @@fact[n]
+        else
+            @@fact[n] = n * Factorial.compute(n - 1)
+        end
+    end
+end
+
+#---------------------------------------------------------
+# Example 4-4- mjd-permute
+# n2pat(n, len): produce the N-th pattern of length len
+
+# We must use a lower case letter as parameter N, otherwise it is
+# handled as constant Length is the length of the resulting
+# array, not the index of the last element (length -1) like in
+# the perl example.
+def n2pat(n, length)
+    pat = []
+    i = 1
+    while i <= length
+        pat.push(n % i)
+        n /= i
+        i += 1
+    end
+    pat
+end
+
+# pat2perm(pat): turn pattern returned by n2pat() into
+# permutation of integers.
+def pat2perm(pat)
+    source = (0 .. pat.length - 1).to_a
+    perm = []
+    perm.push(source.slice!(pat.pop)) while pat.length > 0
+    perm
+end
+
+def n2perm(n, len)
+    pat2perm(n2pat(n,len))
+end
+
+# In ruby the main program must be after all definitions
+while gets
+    data = split
+    # the perl solution has used $#data, which is length-1
+    num_permutations = Factorial.compute(data.length())
+    0.upto(num_permutations - 1) do |i|
+        # in ruby we can not use an array as selector for an array
+        # but by exchanging the two arrays, we can use the collect method
+        # which returns an array with the result of all block invocations
+        permutation = n2perm(i, data.length).collect {
+            |j| data[j]
+        }
+        puts permutation.join(" ")
+    end
+end
+
+
+# @@PLEAC@@_5.0
+age = { "Nat",   24,
+        "Jules", 25,
+        "Josh",  17  }
+
+age["Nat"]   = 24
+age["Jules"] = 25
+age["Josh"]  = 17
+
+food_color = {
+    "Apple"  => "red",
+    "Banana" => "yellow",
+    "Lemon"  => "yellow",
+    "Carrot" => "orange"
+             }
+
+# In Ruby, you cannot avoid the double or simple quoting
+# while manipulatin hashes
+
+
+# @@PLEAC@@_5.1
+hash[key] = value
+
+food_color["Raspberry"] = "pink"
+puts "Known foods:", food_color.keys
+
+
+# @@PLEAC@@_5.2
+# does hash have a value for key ?
+if (hash.has_key?(key))
+    # it exists
+else
+    # it doesn't
+end
+
+[ "Banana", "Martini" ].each { |name|
+    print name, " is a ", food_color.has_key?(name) ? "food" : "drink", "\n"
+}
+
+age = {}
+age['Toddler'] = 3
+age['Unborn'] = 0
+age['Phantasm'] = nil
+
+for thing in ['Toddler', 'Unborn', 'Phantasm', 'Relic']
+    print "#{thing}: "
+    print "Has-key " if age.has_key?(thing)
+    print "True " if age[thing]
+    print "Nonzero " if age[thing] && age[thing].nonzero?
+    print "\n"
+end
+
+#=>
+# Toddler: Has-key True Nonzero 
+# Unborn: Has-key True 
+# Phantasm: Has-key 
+# Relic: 
+
+# You use Hash#has_key? when you use Perl's exists -> it checks
+# for existence of a key in a hash.
+# All Numeric are "True" in ruby, so the test doesn't have the
+# same semantics as in Perl; you would use Numeric#nonzero? to
+# achieve the same semantics (false if 0, true otherwise).
+
+
+# @@PLEAC@@_5.3
+food_color.delete("Banana")
+
+
+# @@PLEAC@@_5.4
+hash.each { |key, value|
+    # do something with key and value
+}
+
+hash.each_key { |key|
+    # do something with key
+}
+
+food_color.each { |food, color|
+    puts "#{food} is #{color}"
+}
+
+food_color.each_key { |food|
+    puts "#{food} is #{food_color[food]}"
+}
+
+# IMO this demonstrates that OO style is by far more readable
+food_color.keys.sort.each { |food|
+    puts "#{food} is #{food_color[food]}."
+}
+
+#-----------------------------
+#!/usr/bin/ruby
+# countfrom - count number of messages from each sender
+
+# Default value is 0
+from = Hash.new(0)
+while gets
+    /^From: (.*)/ and from[$1] += 1
+end
+
+# More useful to sort by number of received mail by person
+from.sort {|a,b| b[1]<=>a[1]}.each { |v|
+    puts "#{v[1]}: #{v[0]}"
+}
+#-----------------------------
+
+
+# @@PLEAC@@_5.5
+# You may use the built-in 'inspect' method this way:
+p hash
+
+# Or do it the Cookbook way:
+hash.each { |k,v| puts "#{k} => #{v}" }
+
+# Sorted by keys
+hash.sort.each { |e| puts "#{e[0]} => #{e[1]}" }
+# Sorted by values
+hash.sort{|a,b| a[1]<=>b[1]}.each { |e| puts "#{e[0]} => #{e[1]}" }
+
+
+# @@PLEAC@@_5.7
+ttys = Hash.new
+for i in `who`
+    user, tty = i.split
+    (ttys[user] ||= []) << tty               # see problems_ruby for more infos
+end
+ttys.keys.sort.each { |k|
+    puts "#{k}: #{commify_series(ttys[k])}"  # from 4.2
+}
+
+
+# @@PLEAC@@_5.8
+surname = { "Mickey" => "Mantle", "Babe" => "Ruth" }
+puts surname.index("Mantle")
+
+# If you really needed to 'invert' the whole hash, use Hash#invert
+
+#-----------------------------
+#!/usr/bin/ruby -w
+# foodfind - find match for food or color
+
+given = ARGV.shift or raise "usage: foodfind food_or_color"
+
+color = {
+    "Apple"  => "red",
+    "Banana" => "yellow",
+    "Lemon"  => "yellow",
+    "Carrot" => "orange",
+}
+
+if (color.has_key?(given))
+    puts "#{given} is a food with color #{color[given]}."
+end
+if (color.has_value?(given))
+    puts "#{color.index(given)} is a food with color #{given}."
+end
+#-----------------------------
+
+
+# @@PLEAC@@_5.9
+# Sorted by keys (Hash#sort gives an Array of pairs made of each key,value)
+food_color.sort.each { |f|
+    puts "#{f[0]} is #{f[1]}."
+}
+
+# Sorted by values
+food_color.sort { |a,b| a[1] <=> b[1] }.each { |f|
+    puts "#{f[0]} is #{f[1]}."
+}
+
+# Sorted by length of values
+food_color.sort { |a,b| a[1].length <=> b[1].length }.each { |f|
+    puts "#{f[0]} is #{f[1]}."
+}
+
+
+# @@PLEAC@@_5.10
+merged = a.clone.update(b)        # because Hash#update changes object in place
+
+drink_color = { "Galliano"  => "yellow", "Mai Tai" => "blue" }
+ingested_color = drink_color.clone.update(food_color)
+
+substance_color = {}
+for i in [ food_color, drink_color ]
+    i.each_key { |k|
+        if substance_color.has_key?(k)
+            puts "Warning: #{k} seen twice.  Using the first definition."
+            next
+        end
+        substance_color[k] = 1
+    }
+end
+
+
+# @@PLEAC@@_5.11
+common = hash1.keys & hash2.keys
+
+this_not_that = hash1.keys - hash2.keys
+
+
+# @@PLEAC@@_5.12
+# no problem here, Ruby handles any kind of object for key-ing
+# (it takes Object#hash, which defaults to Object#id)
+
+
+# @@PLEAC@@_5.13
+# AFAIK, not possible in Ruby
+
+
+# @@PLEAC@@_5.14
+# Be careful, the following is possible only because Fixnum objects are
+# special (documentation says: there is effectively only one Fixnum object
+# instance for any given integer value).
+count = Hash.new(0)
+array.each { |e|
+    count[e] += 1
+}
+
+
+# @@PLEAC@@_5.15
+father = {
+    "Cain"      , "Adam",
+    "Abel"      , "Adam",
+    "Seth"      , "Adam",
+    "Enoch"     , "Cain",
+    "Irad"      , "Enoch",
+    "Mehujael"  , "Irad",
+    "Methusael" , "Mehujael",
+    "Lamech"    , "Methusael",
+    "Jabal"     , "Lamech",
+    "Jubal"     , "Lamech",
+    "Tubalcain" , "Lamech",
+    "Enos"      , "Seth",
+}
+
+while gets
+    chomp
+    begin
+        print $_, " "
+    end while $_ = father[$_]
+    puts
+end
+
+children = {}
+father.each { |k,v|
+    (children[v] ||= []) << k
+}
+while gets
+    chomp
+    puts "#{$_} begat #{(children[$_] || ['Nobody']).join(', ')}.\n"
+end
+
+includes = {}
+files.each { |f|
+    begin
+        for l in IO.readlines(f)
+            next unless l =~ /^\s*#\s*include\s*<([^>]+)>/
+            (includes[$1] ||= []) << f
+        end
+    rescue SystemCallError
+        $stderr.puts "#$! (skipping)"
+    end
+}
+
+include_free = includes.values.flatten.uniq - includes.keys
+
+
+# @@PLEAC@@_5.16
+# dutree - print sorted intented rendition of du output
+#% dutree
+#% dutree /usr
+#% dutree -a
+#% dutree -a /bin
+
+# The DuNode class collects all information about a directory,
+# and provides some convenience methods
+class DuNode
+
+    attr_reader :name
+    attr_accessor :size
+    attr_accessor :kids
+
+    def initialize(name)
+        @name = name
+        @kids = []
+        @size = 0
+    end
+
+    # support for sorting nodes with side
+    def size_compare(node2)
+        @size <=> node2.size
+    end
+
+    def basename
+        @name.sub(/.*\//, "")
+    end
+
+    #returns substring before last "/", nil if not there
+    def parent
+        p = @name.sub(/\/[^\/]+$/,"")
+        if p == @name
+            nil
+        else
+            p
+        end
+    end
+
+end
+
+# The DuTree does the acdtual work of
+# getting the input, parsing it, builging up a tree
+# and format it for output
+class Dutree
+
+    attr_reader :topdir
+
+    def initialize
+        @nodes = Hash.new
+        @dirsizes = Hash.new(0)
+        @kids = Hash.new([])
+    end
+
+    # get a node by name, create it if it does not exist yet
+    def get_create_node(name)
+        if @nodes.has_key?(name)
+            @nodes[name]
+        else
+            node = DuNode.new(name)
+            @nodes[name] = node
+            node
+        end
+    end
+
+    # run du, read in input, save sizes and kids
+    # stores last directory read in instance variable topdir
+    def input(arguments)
+        name = ""
+        cmd = "du " + arguments.join(" ")
+        IO.popen(cmd) { |pipe|
+            pipe.each { |line|
+                size, name = line.chomp.split(/\s+/, 2)
+                node = get_create_node(name)
+                node.size = size.to_i
+                @nodes[name] = node
+                parent = node.parent
+                if parent
+                    get_create_node(parent).kids.push(node)
+                end
+            }
+        }
+        @topdir = @nodes[name]
+    end
+
+    # figure out how much is taken in each directory
+    # that isn't stored in the subdirectories. Add a new
+    # fake kid called "." containing that much.
+    def get_dots(node)
+        cursize = node.size
+        for kid in node.kids
+            cursize -=  kid.size
+            get_dots(kid)
+        end
+        if node.size != cursize
+            newnode = get_create_node(node.name + "/.")
+            newnode.size = cursize
+            node.kids.push(newnode)
+        end
+    end
+
+    # recursively output everything
+    # passing padding and number width as well
+    # on recursive calls
+    def output(node, prefix="", width=0)
+        line = sprintf("%#{width}d %s", node.size, node.basename)
+        puts(prefix + line)
+        prefix += line.sub(/\d /, "| ")
+        prefix.gsub!(/[^|]/, " ")
+        if node.kids.length > 0     # not a bachelor node
+            kids = node.kids
+            kids.sort! { |a,b|
+                b.size_compare(a)
+            }
+            width = kids[0].size.to_s.length
+            for kid in kids
+                output(kid, prefix, width)
+            end
+        end
+    end
+
+end
+
+tree = Dutree.new
+tree.input(ARGV)
+tree.get_dots(tree.topdir)
+tree.output(tree.topdir)
+
+
+# @@PLEAC@@_6.0
+# The verbose version are match, sub, gsub, sub! and gsub!;
+# pattern needs to be a Regexp object; it yields a MatchData
+# object.
+pattern.match(string)
+string.sub(pattern, replacement)
+string.gsub(pattern, replacement)
+# As usual in Ruby, sub! does the same as sub but also modifies
+# the object, the same for gsub!/gsub.
+
+# Sugared syntax yields the position of the match (or nil if no
+# match). Note that the object at the right of the operator needs
+# not to be a Regexp object (it can be a String). The "dont
+# match" operator yields true or false.
+meadow =~ /sheep/   # position of the match, nil if no match
+meadow !~ /sheep/   # true if doesn't match, false if it does
+# There is no sugared version for the substitution
+
+meadow =~ /\bovines?\b/i and print "Here be sheep!"
+
+string = "good food"
+string.sub!(/o*/, 'e')
+
+# % echo ababacaca | ruby -ne 'puts $& if /(a|ba|b)+(a|ac)+/'
+# ababa
+
+# The "global" (or "multiple") match is handled by String#scan
+scan (/(\d+)/) {
+    puts "Found number #{$1}"
+}
+
+# String#scan yields an Array if not used with a block
+numbers = scan(/\d+/)
+
+digits = "123456789"
+nonlap = digits.scan(/(\d\d\d)/)
+yeslap = digits.scan(/(?=(\d\d\d))/)
+puts "Non-overlapping:  #{nonlap.join(' ')}"
+puts "Overlapping:      #{yeslap.join(' ')}";
+# Non-overlapping:  123 456 789
+# Overlapping:      123 234 345 456 567 678 789
+
+string = "And little lambs eat ivy"
+string =~ /l[^s]*s/
+puts "(#$`) (#$&) (#$')"
+# (And ) (little lambs) ( eat ivy)
+
+
+# @@PLEAC@@_6.1
+# Ruby doesn't have the same problem:
+dst = src.sub('this', 'that')
+
+progname = $0.sub('^.*/', '')
+
+bindirs = %w(/usr/bin /bin /usr/local/bin)
+libdirs = bindirs.map { |l| l.sub('bin', 'lib') }
+
+
+# @@PLEAC@@_6.3
+/\S+/               # as many non-whitespace bytes as possible
+/[A-Za-z'-]+/       # as many letters, apostrophes, and hyphens
+
+/\b([A-Za-z]+)\b/   # usually best
+/\s([A-Za-z]+)\s/   # fails at ends or w/ punctuation
+
+
+# @@PLEAC@@_6.4
+require 'socket'
+str = 'www.ruby-lang.org and www.rubygarden.org'
+re = /
+      (               # capture the hostname in $1
+        (?:           # these parens for grouping only
+          (?! [-_] )  # lookahead for neither underscore nor dash
+          [\w-] +     # hostname component
+          \.          # and the domain dot
+        ) +           # now repeat that whole thing a bunch of times
+        [A-Za-z]      # next must be a letter
+        [\w-] +       # now trailing domain part
+      )               # end of $1 capture
+     /x               # /x for nice formatting
+
+str.gsub! re do       # pass a block to execute replacement
+    host = TCPsocket.gethostbyname($1)
+    "#{$1} [#{host[3]}]"
+end
+
+puts str
+#-----------------------------
+# to match whitespace or #-characters in an extended re you need to escape
+# them.
+
+foo = 42
+str = 'blah #foo# blah'
+str.gsub! %r/       # replace
+              \#    #   a pound sign
+              (\w+) #   the variable name
+              \#    #   another pound sign
+          /x do
+              eval $1           # with the value of a local variable
+          end
+puts str  # => blah 42 blah
+
+
+# @@PLEAC@@_6.5
+# The 'g' modifier doesn't exist in Ruby, a regexp can't be used
+# directly in a while loop; instead, use String#scan { |match| .. } 
+fish = 'One fish two fish red fish blue fish'
+WANT = 3
+count = 0
+fish.scan(/(\w+)\s+fish\b/i) {
+    if (count += 1) == WANT
+        puts "The third fish is a #{$1} one."
+    end
+}
+
+if fish =~ /(?:\w+\s+fish\s+){2}(\w+)\s+fish/i
+    puts "The third fish is a #{$1} one."
+end
+
+pond = 'One fish two fish red fish blue fish'
+# String#scan without a block gives an array of matches, each match
+# being an array of all the specified groups
+colors = pond.scan(/(\w+)\s+fish\b/i).flatten  # get all matches
+color  = colors[2]                          # then the one we want
+# or without a temporary array
+color = pond.scan(/(\w+)\s+fish\b/i).flatten[2]  # just grab element 3
+puts "The third fish in the pond is #{color}."
+
+count = 0
+fishes = 'One fish two fish red fish blue fish'
+evens = fishes.scan(/(\w+)\s+fish\b/i).select { (count+=1) % 2 == 0 }
+print "Even numbered fish are #{evens.join(' ')}."
+
+count = 0
+fishes.gsub(/
+   \b               # makes next \w more efficient
+   ( \w+ )          # this is what we\'ll be changing
+   (
+     \s+ fish \b
+   )
+            /x) {
+    if (count += 1) == 4
+        'sushi' + $2
+    else
+        $1 + $2
+    end
+}
+
+pond = 'One fish two fish red fish blue fish swim here.'
+puts "Last fish is #{pond.scan(/\b(\w+)\s+fish\b/i).flatten[-1]}"
+
+/
+    A               # find some pattern A
+    (?!             # mustn\'t be able to find
+        .*          # something
+        A           # and A
+    )
+    $               # through the end of the string
+/x
+
+# The "s" perl modifier is "m" in Ruby (not very nice since there is
+# also an "m" in perl..)
+pond = "One fish two fish red fish blue fish swim here."
+if (pond =~ /
+                    \b  (  \w+) \s+ fish \b
+                (?! .* \b fish \b )
+            /mix)
+    puts "Last fish is #{$1}."
+else
+    puts "Failed!"
+end
+
+
+# @@PLEAC@@_6.6
+#-----------------------------
+#!/usr/bin/ruby -w
+# killtags - very bad html killer
+$/ = nil;                              # each read is whole file
+while file = gets() do
+    file.gsub!(/<.*?>/m,'');           # strip tags (terribly)
+    puts file                          # print file to STDOUT
+end
+#-----------------------------
+#!/usr/bin/ruby -w
+#headerfy - change certain chapter headers to html
+$/ = ''
+while file = gets() do
+    pattern = /
+                  \A                   # start of record
+                  (                    # capture in $1
+                      Chapter          # text string
+                      \s+              # mandatory whitespace
+                      \d+              # decimal number
+                      \s*              # optional whitespace
+                      :                # a real colon
+                      . *              # anything not a newline till end of line
+                  )
+               /x
+    puts file.gsub(pattern,'<H1>\1</H1>')
+end
+#-----------------------------
+#% ruby -00pe "gsub!(/\A(Chapter\s+\d+\s*:.*)/,'<H1>\1</H1>')" datafile
+
+#!/usr/bin/ruby -w
+#-----------------------------
+for file in ARGV
+    file = File.open(ARGV.shift)
+    while file.gets('') do             # each read is a paragraph
+        print "chunk #{$.} in $ARGV has <<#{$1}>>\n" while /^START(.*?)^END/m
+    end                                # /m activates the multiline mode
+end
+#-----------------------------
+
+# @@PLEAC@@_6.7
+#-----------------------------
+$/ = nil;
+file = File.open("datafile")
+chunks = file.gets.split(/pattern/)
+#-----------------------------
+# .Ch, .Se and .Ss divide chunks of STDIN
+chunks = gets(nil).split(/^\.(Ch|Se|Ss)$/)
+print "I read #{chunks.size} chunks.\n"
+#-----------------------------
+
+
+# @@PLEAC@@_6.8
+while gets
+    if ~/BEGIN/ .. ~/END/
+        # line falls between BEGIN and END inclusive
+    end
+end
+
+while gets
+    if ($. == firstnum) .. ($. == lastnum)
+        # operate between firstnum and lastnum line number
+    end
+end
+
+# in ruby versions prior to 1.8, the above two conditional
+# expressions could be shortened to:
+#     if /BEGIN/ .. /END/
+# and
+#     if firstnum .. lastnum
+# but these now only work this way from the command line  
+
+#-----------------------------
+
+while gets
+    if ~/BEGIN/ ... ~/END/
+        # line falls between BEGIN and END on different lines
+    end
+end
+
+while gets
+    if ($. == first) ... ($. == last)
+        # operate between first and last line number on different lines
+    end
+end
+
+#-----------------------------
+# command-line to print lines 15 through 17 inclusive (see below)
+ruby -ne 'print if 15 .. 17' datafile
+
+# print out all <XMP> .. </XMP> displays from HTML doc
+while gets
+    print if ~%r#<XMP>#i .. ~%r#</XMP>#i;
+end
+    
+# same, but as shell command
+# ruby -ne 'print if %r#<XMP>#i .. %r#</XMP>#i' document.html
+#-----------------------------
+# ruby -ne 'BEGIN { $top=3; $bottom=5 }; \
+#     print if $top .. $bottom' /etc/passwd                 #  FAILS
+# ruby -ne 'BEGIN { $top=3; $bottom=5 }; \
+#     print if $. == $top .. $. ==  $bottom' /etc/passwd    # works
+# ruby -ne 'print if 3 .. 5' /etc/passwd                    # also works
+#-----------------------------
+print if ~/begin/ .. ~/end/;
+print if ~/begin/ ... ~/end/;
+#-----------------------------
+while gets
+    $in_header = $. == 1  .. ~/^$/ ? true : false
+    $in_body   = ~/^$/ .. ARGF.eof ? true : false
+end
+#-----------------------------
+seen = {}
+ARGF.each do |line|
+    next unless line =~ /^From:?\s/i .. line =~ /^$/;
+    line.scan(%r/([^<>(),;\s]+\@[^<>(),;\s]+)/).each do |addr|
+        puts addr unless seen[addr]
+        seen[addr] ||= 1 
+    end
+end
+
+
+# @@PLEAC@@_6.9
+def glob2pat(globstr)
+    patmap = {
+        '*' => '.*',
+        '?' => '.',
+        '[' => '[',
+        ']' => ']',
+    }
+    globstr.gsub!(/(.)/) { |c| patmap[c] || Regexp::escape(c) }
+    '^' + globstr + '$'
+end
+
+
+# @@PLEAC@@_6.10
+# avoid interpolating patterns like this if the pattern
+# isn't going to change:
+pattern = ARGV.shift
+ARGF.each do |line|
+    print line if line =~ /#{pattern}/
+end
+
+# the above creates a new regex each iteration. Instead,
+# use the /o modifier so the regex is compiled only once
+
+pattern = ARGV.shift
+ARGF.each do |line|
+    print line if line =~ /#{pattern}/o
+end
+
+#-----------------------------
+
+#!/usr/bin/ruby
+# popgrep1 - grep for abbreviations of places that say "pop"
+# version 1: slow but obvious way
+popstates = %w(CO ON MI WI MN)
+ARGF.each do |line|
+    popstates.each do |state|
+        if line =~ /\b#{state}\b/
+            print line
+            last
+        end
+    end
+end
+
+#-----------------------------
+#!/usr/bin/ruby
+# popgrep2 - grep for abbreviations of places that say "pop"
+# version 2: eval strings; fast but hard to quote
+popstates = %w(CO ON MI WI MN)
+code = "ARGF.each do |line|\n"
+popstates.each do |state|
+    code += "\tif line =~ /\\b#{state}\\b/; print(line); next; end\n"
+end
+code += "end\n"
+print "CODE IS\n---\n#{code}\n---\n" if false # turn on for debugging
+eval code
+
+# CODE IS
+# ---
+# ARGF.each do |line|
+#         if line =~ /\bCO\b/; print(line); next; end
+#         if line =~ /\bON\b/; print(line); next; end
+#         if line =~ /\bMI\b/; print(line); next; end
+#         if line =~ /\bWI\b/; print(line); next; end
+#         if line =~ /\bMN\b/; print(line); next; end
+# end
+# 
+# ---
+
+## alternatively, the same idea as above but compiling 
+## to a case statement: (not in perlcookbook)
+#!/usr/bin/ruby -w
+# popgrep2.5 - grep for abbreviations of places that say "pop"
+# version 2.5: eval strings; fast but hard to quote
+popstates = %w(CO ON MI WI MN)
+code = "ARGF.each do |line|\n    case line\n"
+popstates.each do |state|
+    code += "        when /\\b#{state}\\b/ : print line\n"
+end
+code += "    end\nend\n"
+print "CODE IS\n---\n#{code}\n---\n" if false # turn on for debugging
+eval code
+
+# CODE IS
+# ---
+# ARGF.each do |line|
+#     case line
+#         when /\bCO\b/ : print line
+#         when /\bON\b/ : print line
+#         when /\bMI\b/ : print line
+#         when /\bWI\b/ : print line
+#         when /\bMN\b/ : print line
+#     end
+# end
+# 
+# ---
+
+# Note: (above) Ruby 1.8+ allows the 'when EXP : EXPR' on one line
+# with the colon separator.
+
+#-----------------------------
+#!/usr/bin/ruby
+# popgrep3 - grep for abbreviations of places that say "pop"
+# version3: build a match_any function
+popstates = %w(CO ON MI WI MN)
+expr = popstates.map{|e|"line =~ /\\b#{e}\\b/"}.join('||')
+eval "def match_any(line); #{expr};end"
+ARGF.each do |line|
+    print line if match_any(line)
+end
+#-----------------------------
+
+##  building a match_all function is a trivial
+##  substitution of && for ||
+##  here is a generalized example:
+#!/usr/bin/ruby -w
+## grepauth - print lines that mention both foo and bar
+class MultiMatch 
+    def initialize(*patterns)
+        _any = build_match('||',patterns)
+        _all = build_match('&&',patterns)
+        eval "def match_any(line);#{_any};end\n"
+        eval "def match_all(line);#{_all};end\n"
+      end
+    def build_match(sym,args)
+        args.map{|e|"line =~ /#{e}/"}.join(sym)
+    end
+end
+
+mm = MultiMatch.new('foo','bar')
+ARGF.each do |line|
+    print line if mm.match_all(line)
+end
+#-----------------------------
+
+#!/usr/bin/ruby
+# popgrep4 - grep for abbreviations of places that say "pop"
+# version4: pretty fast, but simple: compile all re's first:
+popstates = %w(CO ON MI WI MN)
+popstates = popstates.map{|re| %r/\b#{re}\b/}
+ARGF.each do |line|
+    popstates.each do |state_re|
+        if line =~ state_re
+            print line
+            break
+        end
+    end
+end
+
+## speeds trials on the jargon file(412): 26006 lines, 1.3MB
+## popgrep1   => 7.040s
+## popgrep2   => 0.656s
+## popgrep2.5 => 0.633s
+## popgrep3   => 0.675s
+## popgrep4   => 1.027s
+
+# unless speed is criticial, the technique in popgrep4 is a
+# reasonable balance between speed and logical simplicity.
+
+
+# @@PLEAC@@_6.11
+begin
+    print "Pattern? "
+    pat = $stdin.gets.chomp
+    Regexp.new(pat)
+rescue 
+    warn "Invalid Pattern"
+    retry
+end
+
+
+# @@PLEAC@@_6.13
+# uses the 'amatch' extension found on:
+# http://raa.ruby-lang.org/project/amatch/
+require 'amatch'
+matcher = Amatch.new('balast')
+#$relative, $distance = 0, 1
+File.open('/usr/share/dict/words').each_line do |line|
+    print line if matcher.search(line) <= 1
+end
+__END__
+#CODE
+ballast
+ballasts
+balustrade
+balustrades
+blast
+blasted
+blaster
+blasters
+blasting
+blasts
+
+
+# @@PLEAC@@_6.14
+str.scan(/\G(\d)/).each do |token|
+    puts "found #{token}"
+end
+#-----------------------------
+n = "   49 here"
+n.gsub!(/\G /,'0')
+puts n
+#-----------------------------
+str = "3,4,5,9,120"
+str.scan(/\G,?(\d+)/).each do |num|
+    puts "Found number: #{num}"
+end
+#-----------------------------
+# Ruby doesn't have the String.pos or a /c re modifier like Perl 
+# But it does have StringScanner in the standard library (strscn)
+# which allows similar functionality:
+
+require 'strscan'
+text = 'the year 1752 lost 10 days on the 3rd of September'
+sc = StringScanner.new(text)
+while sc.scan(/.*?(\d+)/)
+    print "found: #{sc[1]}\n"   
+end
+if sc.scan(/\S+/)
+    puts "Found #{sc[0]} after last number"
+end
+#-----------------------------
+# assuming continuing from above:
+puts "The position in 'text' is: #{sc.pos}"
+sc.pos = 30
+puts "The position in 'text' is: #{sc.pos}"
+
+
+# @@PLEAC@@_6.15
+#-----------------------------
+# greedy pattern
+str.gsub!(/<.*>/m,'')   # not good
+
+# non-greedy (minimal) pattern
+str.gsub!(/<.*?>/m,'')   # not great
+
+
+#-----------------------------
+#<b><i>this</i> and <i>that</i> are important</b> Oh, <b><i>me too!</i></b>
+#-----------------------------
+%r{ <b><i>(.*?)</i></b> }mx
+#-----------------------------
+%r/BEGIN((?:(?!BEGIN).)*)END/
+#-----------------------------
+%r{ <b><i>(  (?: (?!</b>|</i>). )*  ) </i></b> }mx
+#-----------------------------
+%r{ <b><i>(  (?: (?!</[ib]>). )*  ) </i></b> }mx
+#-----------------------------
+%r{
+    <b><i> 
+    [^<]*  # stuff not possibly bad, and not possibly the end.
+    (?:
+ # at this point, we can have '<' if not part of something bad
+     (?!  </?[ib]>  )   # what we can't have
+     <                  # okay, so match the '<'
+     [^<]*              # and continue with more safe stuff
+    ) *
+    </i></b>
+ }mx
+
+
+# @@PLEAC@@_6.16
+#-----------------------------
+$/ = ""
+ARGF.each do |para|
+    para.scan %r/
+                  \b     # start at word boundary
+                  (\S+)  # find chunk of non-whitespace
+                  \b     # until a word boundary
+                  (      
+                    \s+  # followed by whitespace
+                    \1   # and that same chunk again
+                    \b   # and a word boundary
+                  ) +    # one or more times
+                /xi do
+        puts "dup word '#{$1}' at paragraph #{$.}" 
+    end
+end
+#-----------------------------
+astr = 'nobody'
+bstr = 'bodysnatcher'
+if "#{astr} #{bstr}" =~ /^(\w+)(\w+) \2(\w+)$/
+    print "#{$2} overlaps in #{$1}-#{$2}-#{$3}"
+end
+#-----------------------------
+#!/usr/bin/ruby -w
+# prime_pattern -- find prime factors of argument using patterns
+ARGV << 180
+cap = 'o' * ARGV.shift
+while cap =~ /^(oo+?)\1+$/
+    print $1.size, " "
+    cap.gsub!(/#{$1}/,'o')
+end
+puts cap.size
+#-----------------------------
+#diophantine
+# solve for 12x + 15y + 16z = 281, maximizing x
+if ('o' * 281).match(/^(o*)\1{11}(o*)\2{14}(o*)\3{15}$/)
+    x, y, z = $1.size, $2.size, $3.size
+    puts "One solution is: x=#{x}; y=#{y}; z=#{z}"
+else 
+    puts "No solution."
+end
+#    => One solution is: x=17; y=3; z=2
+
+#-----------------------------
+# using different quantifiers:
+('o' * 281).match(/^(o+)\1{11}(o+)\2{14}(o+)\3{15}$/)
+#    => One solution is: x=17; y=3; z=2
+
+('o' * 281).match(/^(o*?)\1{11}(o*)\2{14}(o*)\3{15}$/)
+#    => One solution is: x=0; y=7; z=11
+
+('o' * 281).match(/^(o+?)\1{11}(o*)\2{14}(o*)\3{15}$/)
+#    => One solution is: x=1; y=3; z=14
+
+
+# @@PLEAC@@_6.17
+# alpha OR beta
+%r/alpha|beta/
+
+# alpha AND beta
+%r/(?=.*alpha)(?=.*beta)/m
+
+# alpha AND beta,  no overlap
+%r/alpha.*beta|beta.*alpha/m
+
+# NOT beta
+%r/^(?:(?!beta).)*$/m
+
+# NOT bad BUT good
+%r/(?=(?:(?!BAD).)*$)GOOD/m
+#-----------------------------
+
+if !(string =~ /pattern/)   # ugly
+    something()
+end
+
+if string !~ /pattern/   # preferred
+    something()
+end
+
+
+#-----------------------------
+if string =~ /pat1/  && string =~ /pat2/
+    something()
+end
+#-----------------------------
+if string =~ /pat1/ || string =~ /pat2/
+    something()
+end
+#-----------------------------
+#!/usr/bin/ruby -w
+# minigrep - trivial grep
+pat = ARGV.shift
+ARGF.each do |line|
+    print line if line =~ /#{pat}/o
+end
+#-----------------------------
+ "labelled" =~ /^(?=.*bell)(?=.*lab)/m
+#-----------------------------
+$string =~ /bell/ && $string =~ /lab/
+#-----------------------------
+$murray_hill = "blah bell blah "
+if $murray_hill =~ %r{
+                         ^              # start of string
+                        (?=             # zero-width lookahead
+                            .*          # any amount of intervening stuff
+                            bell        # the desired bell string
+                        )               # rewind, since we were only looking
+                        (?=             # and do the same thing
+                            .*          # any amount of intervening stuff
+                            lab         # and the lab part
+                        )
+                     }mx                # /m means . can match newline
+
+    print "Looks like Bell Labs might be in Murray Hill!\n";
+end
+#-----------------------------
+"labelled" =~ /(?:^.*bell.*lab)|(?:^.*lab.*bell)/
+#-----------------------------
+$brand = "labelled";
+if $brand =~ %r{
+                (?:                 # non-capturing grouper
+                    ^ .*?           # any amount of stuff at the front
+                      bell          # look for a bell
+                      .*?           # followed by any amount of anything
+                      lab           # look for a lab
+                  )                 # end grouper
+            |                       # otherwise, try the other direction
+                (?:                 # non-capturing grouper
+                    ^ .*?           # any amount of stuff at the front
+                      lab           # look for a lab
+                      .*?           # followed by any amount of anything
+                      bell          # followed by a bell
+                  )                 # end grouper
+            }mx                     # /m means . can match newline
+    print "Our brand has bell and lab separate.\n";
+end
+#-----------------------------
+$map =~ /^(?:(?!waldo).)*$/s
+#-----------------------------
+$map = "the great baldo"
+if $map =~ %r{
+                ^                   # start of string
+                (?:                 # non-capturing grouper
+                    (?!             # look ahead negation
+                        waldo       # is he ahead of us now?
+                    )               # is so, the negation failed
+                    .               # any character (cuzza /s)
+                ) *                 # repeat that grouping 0 or more
+                $                   # through the end of the string
+             }mx                    # /m means . can match newline
+    print "There's no waldo here!\n";
+end
+=begin
+ 7:15am  up 206 days, 13:30,  4 users,  load average: 1.04, 1.07, 1.04
+
+USER     TTY      FROM              LOGIN@  IDLE   JCPU   PCPU  WHAT
+
+tchrist  tty1                       5:16pm 36days 24:43   0.03s  xinit
+
+tchrist  tty2                       5:19pm  6days  0.43s  0.43s  -tcsh
+
+tchrist  ttyp0    chthon            7:58am  3days 23.44s  0.44s  -tcsh
+
+gnat     ttyS4    coprolith         2:01pm 13:36m  0.30s  0.30s  -tcsh
+=end
+#% w | minigrep '^(?!.*ttyp).*tchrist'
+#-----------------------------
+%r{
+    ^                       # anchored to the start
+    (?!                     # zero-width look-ahead assertion
+        .*                  # any amount of anything (faster than .*?)
+        ttyp                # the string you don't want to find
+    )                       # end look-ahead negation; rewind to start
+    .*                      # any amount of anything (faster than .*?)
+    tchrist                 # now try to find Tom
+}x
+#-----------------------------
+#% w | grep tchrist | grep -v ttyp
+#-----------------------------
+#% grep -i 'pattern' files
+#% minigrep '(?i)pattern' files
+#-----------------------------
+
+
+# @@PLEAC@@_6.20
+ans = $stdin.gets.chomp
+re = %r/^#{Regexp.quote(ans)}/
+case 
+    when "SEND"  =~ re : puts "Action is send"
+    when "STOP"  =~ re : puts "Action is stop"
+    when "ABORT" =~ re : puts "Action is abort"
+    when "EDIT"  =~ re : puts "Action is edit"
+end
+#-----------------------------
+require 'abbrev'
+table = Abbrev.abbrev %w-send stop abort edit-
+loop do
+    print "Action: "
+    ans = $stdin.gets.chomp
+    puts "Action for #{ans} is #{table[ans.downcase]}"
+end
+
+
+#-----------------------------
+# dummy values are defined for 'file', 'PAGER', and
+# the 'invoke_editor' and 'deliver_message' methods
+# do not do anything interesting in this example.
+#!/usr/bin/ruby -w
+require 'abbrev'
+
+file = 'pleac_ruby.data'
+PAGER = 'less'
+
+def invoke_editor
+    puts "invoking editor"
+end
+
+def deliver_message
+    puts "delivering message"
+end
+
+actions = {
+    'edit'  => self.method(:invoke_editor),
+    'send'  => self.method(:deliver_message),
+    'list'  => proc {system(PAGER, file)},
+    'abort' => proc {puts "See ya!"; exit},
+    ""      => proc {puts "Unknown Command"}
+}
+
+dtable = Abbrev.abbrev(actions.keys)
+loop do
+    print "Action: "
+    ans = $stdin.gets.chomp.delete(" \t")
+    actions[ dtable[ans.downcase] || "" ].call
+end
+
+
+# @@PLEAC@@_6.19
+#-----------------------------
+# basically, the Perl Cookbook categorizes this as an
+# unsolvable problem ...
+#-----------------------------
+1 while addr.gsub!(/\([^()]*\)/,'')
+#-----------------------------
+Dear someuser@host.com,
+
+Please confirm the mail address you gave us Wed May  6 09:38:41
+MDT 1998 by replying to this message.  Include the string
+"Rumpelstiltskin" in that reply, but spelled in reverse; that is,
+start with "Nik...".  Once this is done, your confirmed address will
+be entered into our records.
+
+
+# @@PLEAC@@_6.21
+#-----------------------------
+#% gunzip -c ~/mail/archive.gz | urlify > archive.urlified
+#-----------------------------
+#% urlify ~/mail/*.inbox > ~/allmail.urlified
+#-----------------------------
+#!/usr/bin/ruby -w
+# urlify - wrap HTML links around URL-like constructs
+
+urls = '(https?|telnet|gopher|file|wais|ftp)';
+ltrs = '\w';
+gunk = '/#~:.?+=&%@!\-';
+punc = '.:?\-';
+any  = "#{ltrs}#{gunk}#{punc}";
+
+ARGF.each do |line|
+    line.gsub! %r/
+        \b                    # start at word boundary
+        (                     # begin $1  {
+         #{urls}     :        # need resource and a colon
+         [#{any}] +?          # followed by on or more
+                              #  of any valid character, but
+                              #  be conservative and take only
+                              #  what you need to....
+        )                     # end   $1  }
+        (?=                   # look-ahead non-consumptive assertion
+         [#{punc}]*           # either 0 or more punctuation
+         [^#{any}]            #   followed by a non-url char
+         |                    # or else
+         $                    #   then end of the string
+        )
+    /iox do 
+        %Q|<A HREF="#{$1}">#{$1}</A>|
+    end
+    print line
+end
+
+
+# @@PLEAC@@_6.23
+%r/^m*(d?c{0,3}|c[dm])(l?x{0,3}|x[lc])(v?i{0,3}|i[vx])$/i
+#-----------------------------
+str.sub!(/(\S+)(\s+)(\S+)/, '\3\2\1')
+#-----------------------------
+%r/(\w+)\s*=\s*(.*)\s*$/             # keyword is $1, value is $2
+#-----------------------------
+%r/.{80,}/
+#-----------------------------
+%r|(\d+)/(\d+)/(\d+) (\d+):(\d+):(\d+)|
+#-----------------------------
+str.gsub!(%r|/usr/bin|,'/usr/local/bin')
+#-----------------------------
+str.gsub!(/%([0-9A-Fa-f][0-9A-Fa-f])/){ $1.hex.chr }
+#-----------------------------
+str.gsub!(%r{
+    /\*                    # Match the opening delimiter
+    .*?                    # Match a minimal number of characters
+    \*/                    # Match the closing delimiter
+}xm,'')
+#-----------------------------
+str.sub!(/^\s+/, '')
+str.sub!(/\s+$/, '')
+
+# but really, in Ruby we'd just do:
+str.strip!
+#-----------------------------
+str.gsub!(/\\n/,"\n")
+#-----------------------------
+str.sub!(/^.*::/, '')
+#-----------------------------
+%r/^([01]?\d\d|2[0-4]\d|25[0-5])\.([01]?\d\d|2[0-4]\d|25[0-5])\.
+    ([01]?\d\d|2[0-4]\d|25[0-5])\.([01]?\d\d|2[0-4]\d|25[0-5])$/x
+#-----------------------------
+str.sub!(%r|^.*/|, '')
+#-----------------------------
+cols = ( (ENV['TERMCAP'] || " ") =~ /:co#(\d+):/ ) ? $1 : 80;
+#-----------------------------
+name = " #{$0} #{ARGV}".gsub(%r| /\S+/|, ' ')
+#-----------------------------
+require 'rbconfig'
+include Config
+raise "This isn't Linux" unless CONFIG['target_os'] =~ /linux/i;
+#-----------------------------
+str.gsub!(%r/\n\s+/, ' ')
+#-----------------------------
+nums = str.scan(/(\d+\.?\d*|\.\d+)/)
+#-----------------------------
+capwords = str.scan(%r/(\b[^\Wa-z0-9_]+\b)/)
+#-----------------------------
+lowords = str.scan(%r/(\b[^\WA-Z0-9_]+\b)/)
+#-----------------------------
+icwords = str.scan(%r/(\b[^\Wa-z0-9_][^\WA-Z0-9_]*\b)/)
+#-----------------------------
+links = str.scan(%r/<A[^>]+?HREF\s*=\s*["']?([^'" >]+?)[ '"]?>/mi)
+#-----------------------------
+initial = str =~ /^\S+\s+(\S)\S*\s+\S/ ? $1 : ""
+#-----------------------------
+str.gsub!(%r/"([^"]*)"/, %q-``\1''-)
+#-----------------------------
+
+$/ = ""
+sentences = []
+ARGF.each do |para|
+    para.gsub!(/\n/, ' ')
+    para.gsub!(/ {3,}/,'  ')
+    sentences << para.scan(/(\S.*?[!?.])(?=  |\Z)/)
+end
+
+#-----------------------------
+%r/(\d{4})-(\d\d)-(\d\d)/            # YYYY in $1, MM in $2, DD in $3
+#-----------------------------
+%r/ ^
+      (?:
+       1 \s (?: \d\d\d \s)?            # 1, or 1 and area code
+       |                               # ... or ...
+       \(\d\d\d\) \s                   # area code with parens
+       |                               # ... or ...
+       (?: \+\d\d?\d? \s)?             # optional +country code
+       \d\d\d ([\s\-])                 # and area code
+      )
+      \d\d\d (\s|\1)                   # prefix (and area code separator)
+      \d\d\d\d                         # exchange
+        $
+ /x
+#-----------------------------
+%r/\boh\s+my\s+gh?o(d(dess(es)?|s?)|odness|sh)\b/i
+#-----------------------------
+lines = []
+lines << $1 while input.sub!(/^([^\012\015]*)(\012\015?|\015\012?)/,'')
+
+
+# @@PLEAC@@_7.0
+# An IO object being Enumerable, we can use 'each' directly on it
+File.open("/usr/local/widgets/data").each { |line|
+    puts line if line =~ /blue/
+}
+
+logfile = File.new("/var/log/rubylog.txt", "w")
+mysub($stdin, logfile)
+
+# The method IO#readline is similar  to IO#gets
+# but throws an exception when it reaches EOF
+f = File.new("bla.txt")
+begin
+    while (line = f.readline)
+        line.chomp
+        $stdout.print line if line =~ /blue/
+    end
+rescue EOFError
+    f.close
+end
+
+while $stdin.gets                        # reads from STDIN
+    unless (/\d/) 
+        $stderr.puts "No digit found."   # writes to STDERR
+    end
+    puts "Read: #{$_}"                   # writes to STDOUT
+end
+
+logfile = File.new("/tmp/log", "w")
+
+logfile.close
+
+# $defout (or its synonym '$>') is the destination of output
+# for Kernel#print, Kernel#puts, and family functions
+logfile = File.new("log.txt", "w")
+old = $defout
+$defout = logfile                 # switch to logfile for output
+puts "Countdown initiated ..."
+$defout = old                     # return to original output
+puts "You have 30 seconds to reach minimum safety distance."
+
+
+# @@PLEAC@@_7.1
+source = File.new(path, "r")  # open file "path" for reading only
+sink   = File.new(path, "w")  # open file "path" for writing only
+
+source = File.open(path, File::RDONLY)  # open file "path" for reading only
+sink   = File.open(path, File::WRONLY)  # open file "path" for writing only
+
+file   = File.open(path, "r+")  # open "path" for reading and writing
+file   = File.open(path, flags) # open "path" with the flags "flags" (see examples below for flags)
+
+# open file "path" read only
+file   = File.open(path, "r")
+file   = File.open(path, File::RDONLY)
+
+# open file "path" write only, create it if it does not exist
+# truncate it to zero length if it exists
+file   = File.open(path, "w")
+file   = File.open(path, File::WRONLY|File::TRUNC|File::CREAT) 
+file   = File.open(path, File::WRONLY|File::TRUNC|File::CREAT, 0666)  # with permission 0666
+
+# open file "path" write only, fails if file exists
+file   = File.open(path, File::WRONLY|File::EXCL|File::CREAT) 
+file   = File.open(path, File::WRONLY|File::EXCL|File::CREAT, 0666) 
+
+# open file "path" for appending
+file   = File.open(path, "a")
+file   = File.open(path, File::WRONLY|File::APPEND|File::CREAT) 
+file   = File.open(path, File::WRONLY|File::APPEND|File::CREAT, 0666) 
+
+# open file "path" for appending only when file exists
+file   = File.open(path, File::WRONLY|File::APPEND) 
+
+# open file "path" for reading and writing
+file   = File.open(path, "r+")
+file   = File.open(path, File::RDWR)
+
+# open file for reading and writing, create a new file if it does not exist
+file   = File.open(path, File::RDWR|File::CREAT)
+file   = File.open(path, File::RDWR|File::CREAT, 0600)
+
+# open file "path" reading and writing, fails if file exists
+file   = File.open(path, File::RDWR|File::EXCL|File::CREAT)
+file   = File.open(path, File::RDWR|File::EXCL|File::CREAT, 0600)
+
+
+# @@PLEAC@@_7.2
+# No problem with Ruby since the filename doesn't contain characters with
+# special meaning; like Perl's sysopen
+File.open(filename, 'r')
+
+
+# @@PLEAC@@_7.3
+File.expand_path('~root/tmp')
+#=> "/root/tmp"
+File.expand_path('~rpcuser')
+#=> "/var/lib/nfs"
+
+# To expand ~/.. it explicitely needs the environment variable HOME
+File.expand_path('~/tmp')
+#=> "/home/gc/tmp"
+
+
+# @@PLEAC@@_7.4
+# The exception raised in Ruby reports the filename
+File.open('afile')
+
+
+# @@PLEAC@@_7.5
+# Standard Ruby distribution provides the following useful extension
+require 'tempfile'
+# With the Tempfile class, the file is automatically deleted on garbage
+# collection, so you won't need to remove it, later on.
+tf = Tempfile.new('tmp')   # a name is required to create the filename
+
+# If you need to pass the filename to an external program you can use
+# File#path, but don't forget to File#flush in order to flush anything
+# living in some buffer somewhere.
+tf.flush
+system("/usr/bin/dowhatever #{tf.path}")
+
+fh = Tempfile.new('tmp')
+fh.sync = true                # autoflushes
+10.times { |i| fh.puts i }
+fh.rewind
+puts 'Tmp file has: ', fh.readlines
+
+
+# @@PLEAC@@_7.6
+while (DATA.gets) do
+    # process the line  
+end
+__END__
+# your data goes here
+# __DATA__ doesn't exist in Ruby
+
+#CODE
+# get info about the script (size, date of last modification)
+kilosize = DATA.stat.size / 1024
+last_modif = DATA.stat.mtime
+puts "<P>Script size is #{kilosize}"
+puts "<P>Last script update: #{last_modif}"
+__END__
+# DO NOT REMOVE THE PRECEEDING LINE.
+# Everything else in this file will be ignored.
+#CODE
+
+
+# @@PLEAC@@_7.7
+while line = gets do
+    # do something with line.
+end
+
+#  or 
+while gets do
+    # do something with $_
+end
+
+# or more rubyish
+$stdin.each do |line|
+    # do stuff with line
+end
+
+
+# ARGF may makes this more easy
+# this is skipped if ARGV.size==0
+ARGV.each do |filename| 
+    # closing and exception handling are done by the block
+    open(filename) do |fd| 
+        fd.each do |line|
+            # do stuff with line
+        end   
+    end rescue abort("can't open %s" % filename)
+end
+
+# globbing is done in the Dir module
+ARGV = Dir["*.[Cch]"] if ARGV.empty?
+
+# note: optparse is the preferred way to handle this
+if (ARGV[0] == '-c')  
+    chop_first += 1
+    ARGV.shift
+end
+
+
+# processing numerical options
+if ARGV[0] =~ /^-(\d+)$/
+    columns = $1
+    ARGV.shift
+end
+
+# again, better to use optparse:
+require 'optparse'
+nostdout = 0
+append = 0
+unbuffer = 0
+ignore_ints = 0
+ARGV.options do |opt|
+    opt.on('-n') { nostdout +=1 }
+    opt.on('-a') { append   +=1 }
+    opt.on('-u') { unbuffer +=1 }
+    opt.on('-i') { ignore_ints +=1 }
+    opt.parse!
+end or abort("usage: " + __FILE__ + " [-ainu] [filenames]")
+
+# no need to do undef $/, we have File.read
+str = File.read(ARGV[0])
+
+# again we have File.read
+str = File.read(ARGV[0])
+
+# not sure what this should do:
+# I believe open the file, print filename, lineno and line:
+ARGF.each_with_index do |line, idx|
+    print ARGF.filename, ":", idx, ";", line
+end
+
+# print all the lines in every file passed via command line that contains login
+ARGF.each do |line|
+    puts line if line =~ /login/
+end
+#
+# even this would fit
+#%ruby -ne "print if /f/" 2.log
+#
+
+ARGF.each { |l| puts l.downcase! }
+
+#------------------
+#!/usr/bin/ruby -p
+# just like perl's -p
+$_.downcase!
+#
+
+# I don't know who should I trust. 
+# perl's version splits on \w+ while python's on \w.
+
+chunks = 0
+
+File.read(ARGV[0]).split.each do |word|
+    next if word =~ /^#/
+    break if ["__DATA__", "__END__"].member? word
+    chunks += 1 
+end
+
+print "Found ", chunks, " chunks\n"
+
+
+# @@PLEAC@@_7.8
+old = File.open(old_file)
+new = File.open(new_file, "w")
+while old.gets do
+    # change $_, then...
+    new.print $_
+end
+old.close
+new.close
+File.rename(old_file, "old.orig")
+File.rename(new_file, old_file)
+
+while old.gets do
+    if $. == 20 then # we are at the 20th line
+        new.puts "Extra line 1"
+        new.puts "Extra line 2"
+    end
+    new.print $_
+end
+
+while old.gets do
+    next if 20..30 # skip the 20th line to the 30th
+                   # Ruby (and Perl) permit to write if 20..30 
+                   # instead of if (20 <= $.) and ($. <= 30)
+    new.print $_
+end
+
+
+# @@PLEAC@@_7.9
+#% ruby -i.orig -pe 'FILTER COMMAND' file1 file2 file3 ...
+#
+#-----------------------------
+##!/usr/bin/ruby -i.orig -p
+# filter commands go here
+#-----------------------------
+
+#% ruby -pi.orig -e 'gsub!(/DATE/){Time.now)'
+
+# effectively becomes:
+ARGV << 'I'
+oldfile = ""
+while gets
+    if ARGF.filename != oldfile
+        newfile = ARGF.filename
+        File.rename(newfile, newfile + ".orig")
+        $stdout = File.open(newfile,'w')
+        oldfile = newfile
+    end
+    gsub!(/DATE/){Time.now}
+    print 
+end
+$stdout = STDOUT
+#-----------------------------
+#% ruby -i.old -pe 'gsub!(%r{\bhisvar\b}, 'hervar')' *.[Cchy]
+
+#-----------------------------
+# set up to iterate over the *.c files in the current directory,
+# editing in place and saving the old file with a .orig extension
+$-i = '.orig'                       # set up -i mode
+ARGV.replace(Dir['*.[Cchy]'])
+while gets
+    if $. == 1
+        print "This line should appear at the top of each file\n"
+    end
+    gsub!(/\b(p)earl\b/i, '\1erl')    # Correct typos, preserving case
+    print
+    ARGF.close if ARGF.eof
+end
+
+
+# @@PLEAC@@_7.10
+File.open('itest', 'r+') do |f|   # open file for update
+    lines = f.readlines           # read into array of lines
+    lines.each do |it|            # modify lines
+        it.gsub!(/foo/, 'QQQ')
+    end
+    f.pos = 0                     # back to start
+    f.print lines                 # write out modified lines
+    f.truncate(f.pos)             # truncate to new length
+end                               # file is automatically closed
+#-----------------------------
+File.open('itest', 'r+') do |f|   
+    out = ""
+    f.each do |line|
+        out << line.gsub(/DATE/) {Time.now}
+    end
+    f.pos = 0                     
+    f.print out
+    f.truncate(f.pos)             
+end
+
+# @@PLEAC@@_7.11
+File.open('infile', 'r+') do |f|
+    f.flock File::LOCK_EX
+    # update file
+end
+#-----------------------------
+File::LOCK_SH     # shared lock (for reading)
+File::LOCK_EX     # exclusive lock (for writing)
+File::LOCK_NB     # non-blocking request
+File::LOCK_UN     # free lock
+#-----------------------------
+unless f.flock File::LOCK_EX | File::LOCK_NB
+    warn "can't get immediate lock: blocking ..."
+    f.flock File::LOCK_EX 
+end
+#-----------------------------
+File.open('numfile', File::RDWR|File::CREAT) do |f|
+    f.flock(File::LOCK_EX)
+    num = f.gets.to_i || 0
+    f.pos = 0
+    f.truncate 0
+    f.puts num + 1q
+end
+
+
+# @@PLEAC@@_7.12
+output_handle.sync = true
+# Please note that like in Perl, $stderr is already unbuffered
+#-----------------------------
+#!/usr/bin/ruby -w
+# seeme - demo stdio output buffering
+$stdout.sync = ARGV.size > 0
+print "Now you don't see it..."
+sleep 2
+puts "now you do"
+#-----------------------------
+$stderr.sync = true
+afile.sync = false
+#-----------------------------
+# assume 'remote_con' is an interactive socket handle,
+# but 'disk_file' is a handle to a regular file.
+remote_con.sync = true       # unbuffer for clarity
+disk_file.sync = false       # buffered for speed
+#-----------------------------
+require 'socket'
+sock = TCPSocket.new('www.ruby-lang.org', 80)
+sock.sync = true
+sock.puts "GET /en/ HTTP/1.0 \n\n"
+resp = sock.read
+print "DOC IS: #{resp}\n"
+
+
+# @@PLEAC@@_7.13
+#-----------------------------
+# assumes fh1, fh2, fh2 are oen IO objects
+nfound = select([$stdin, fh1, fh2, fh3], nil, nil, 0)
+nfound[0].each do |file|
+    case file
+        when fh1
+            # do something with fh1
+        when fh2
+            # do something with fh2
+        when fh3
+            # do something with fh3
+    end
+end
+#-----------------------------
+input_files = []
+# repeat next line for all in-files to poll
+input_files << fh1
+if nfound = select(input_files, nil, nil, 0)
+    # input ready on files in nfound[0]
+end
+
+
+# @@PLEAC@@_8.0
+#-----------------------------
+# datafile is a file or IO object
+datafile.readlines.each { |line|
+    line.chomp!
+    size = line.length
+    puts size
+}
+#-----------------------------
+datafile.readlines.each { |line|
+    puts line.chomp!.length
+}
+#-----------------------------
+lines = datafile.readlines
+#-----------------------------
+whole_file = file.read
+#-----------------------------
+# ruby -040 -e 'word = gets; puts "First word is #{word}"'
+#-----------------------------
+# ruby -ne 'BEGIN { $/="%%\n" }; $_.chomp; puts $_ if( $_=~/Unix/i)' fortune.dat
+#-----------------------------
+handle.print "one", "two", "three" # "onetwothree"
+puts "Baa baa black sheep."        # sent to $stdout
+#-----------------------------
+buffer = handle.read(4096)
+rv     = buffer.length
+#-----------------------------
+handle.truncate(length)
+open("/tmp#{$$}.pid", 'w') { |handle| handle.truncate(length) }
+#-----------------------------
+pos = datafile.pos  # tell is an alias of pos
+puts "I'm #{pos} bytes from the start of datafile"
+#-----------------------------
+logfile.seek(0, IO::SEEK_END)
+datafile.seek(pos)  #  IO::SEEK_SET is the default
+out.seek(-20, IO::SEEK_CUR)
+#-----------------------------
+written = datafile.syswrite(mystring)
+raise RunTimeError unless written == mystring.length
+block = infile.sysread(256)   # no equivalent to perl offset parameter in sysread
+puts "only read #{block.length} bytes" if 256 != block.length
+#-----------------------------
+pos = handle.sysseek(0, IO::SEEK_CUR)  # don't change position
+
+
+# @@PLEAC@@_8.1
+while (line = fh.gets)
+    line.chomp!
+    nextline = nil
+    line.gsub!(/\\$/) { |match| nextline = fh.gets; '' }
+    if (nextline != nil)
+        line += nextline 
+        redo
+    end
+    # process full record in line here
+end
+#-----------------------------
+# DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) \
+#         $(TEXINFOS) $(INFOS) $(MANS) $(DATA)
+# DEP_DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) \
+#         $(TEXINFOS) $(INFO_DEPS) $(MANS) $(DATA) \
+#         $(EXTRA_DIST)
+#-----------------------------
+line.gsub!(/\\\s*$/, '') {
+    # as before
+}
+
+
+# @@PLEAC@@_8.2
+#-----------------------------
+count = `wc -l < #{filename}`
+fail "wc failed: #{$?}" if $? != 0
+count.chomp!
+#-----------------------------
+count = 0
+File.open(file, 'r') { |fh|
+    count += 1 while fh.gets
+}
+# count now holds the number of lines read
+#-----------------------------
+count = 0
+while (chunk = file.sysread(2**16)) 
+    count += chunk.count("\n")
+end rescue EOFError
+#-----------------------------
+File.open(filename,'r') { |fh|
+    count += 1 while fh.gets
+}
+# count now holds the number of lines read
+#-----------------------------
+# As ruby doesn't quite have an equivalent to using a for
+# statement as in perl, I threw this in
+count = File.readlines(filename).size
+#-----------------------------
+1 while file.gets
+count = $.
+#-----------------------------
+$/ = ''
+open(filename, 'r') { |fh|
+    1 while fh.gets
+    para_count = $.
+} rescue fail("can't open #{filename}: $!") 
+#-----------------------------
+
+
+# ^^PLEAC^^_8.3
+#-----------------------------
+while (gets)
+    split.each { |chunk|
+        # do something with chunk
+    }
+end
+#-----------------------------
+while (gets)
+    gsub(/(\w[\w'-]*)/) { |word|
+        # do something with word
+    }
+end
+#-----------------------------
+# Make a word frequency count
+# normally hashes can be created using {} or just Hash.new
+# but we want the default value of an entry to be 0 instead 
+# of nil. (nil can't be incremented)
+seen = Hash.new(0)
+while (gets)
+    gsub(/(\w[\w'-]*)/) { |word|
+        seen[word.downcase] += 1
+    }
+end
+# output hash in a descending numeric sort of its values
+seen.sort { |a,b| b[1] <=> a[1] }.each do |k,v|
+    printf("%5d %s\n", v, k )
+end
+
+#-----------------------------
+# Line frequency count
+seen = Hash.new(0)
+while (gets)
+    seen[$_.downcase] += 1
+end
+seen.sort { |a,b| b[1] <=> a[1] }.each do |k,v|
+    printf("%5d %s\n", v, k )
+end
+#-----------------------------
+
+
+# @@PLEAC@@_8.4
+#-----------------------------
+# instead of file handle FILE, we can just
+# use a string containing the filename
+File.readlines(file).each { |line|
+    # do something with line
+}
+#-----------------------------
+File.readlines(file).reverse_each { |line|
+    # do something with line
+}
+#-----------------------------
+# the variable lines might have been created
+# this way
+# lines = File.readlines(file)
+#
+# normally one would use the reverse_each, but
+# if you insist on using a numerical index to
+# iterate over the lines array...
+(lines.size - 1).downto(0) { |i|
+    line = lines[i]
+}
+#-----------------------------
+# the second readlines argument is a the 
+# record separator $/, just like perl, a blank
+# separator splits the records into paragraphs
+File.readlines(file, '').each { |paragraph|
+    # do something with paragraph
+    puts "->Paragraph #{paragraph}"
+}
+#-----------------------------
+
+
+# @@PLEAC@@_8.6
+
+$/ = "%\n";
+srand;
+
+File.open('/usr/share/fortune/humorists').each do |line|
+    adage = line if rand($.) < 1
+end
+
+puts adage;
+
+
+# @@PLEAC@@_8.10
+begin
+    fh = File.open(file, "r+")
+    addr = fh.tell unless fh.eof while fh.gets
+    fh.truncate(addr)
+rescue SystemCallError
+    $stderr.puts "#$!"
+end
+
+
+# @@PLEAC@@_9.0
+entry = File.stat("/usr/bin/vi")
+entry = File.stat("/usr/bin")
+entry = File.stat(INFILE)
+
+entry = File.stat("/usr/bin/vi")
+ctime = entry.ctime
+size  = entry.size
+
+f = File.open(filename, "r")
+
+## There is no -T equivalent in Ruby, but we can still test emptiness
+if test(?s, filename)
+  puts "#{filename} doesn't have text in it."
+  exit
+end
+
+Dir.new("/usr/bin").each do |filename|
+  puts "Inside /usr/bin is something called #{filename}"
+end
+
+
+# @@PLEAC@@_9.1
+file = File.stat("filename")
+readtime, writetime = file.atime, file.mtime
+file.utime(readtime, writetime)  
+
+SECONDS_PER_DAY = 60 * 60 * 24
+file = File.stat("filename")
+atime, mtime = file.atime, file.mtime
+
+atime -= 7 * SECONDS_PER_DAY
+mtime -= 7 * SECONDS_PER_DAY
+
+File.utime(atime, mtime, file)
+mtime = File.stat(file).mtime
+File.utime(Time.new, mtime, file)
+File.utime(Time.new, File.stat("testfile").mtime, file)
+
+#-----------------------------
+#!/usr/bin/ruby -w
+## uvi - vi a file without changing it's access times
+
+if ARGV.length != 1
+  puts "usage: uvi filename"
+  exit
+end
+file = ARGV[0]
+atime, mtime = File.stat(file).atime, File.stat(file).mtime
+system(ENV["EDITOR"] || "vi", file)
+File.utime(atime, mtime, file)
+#-----------------------------
+
+
+# @@PLEAC@@_9.2
+File.unlink(FILENAME)
+
+err_flg = false
+filenames.each do |file|
+  begin
+    File.unlink(file)
+  rescue
+    err_flg = $!
+  end
+end
+err_flg and raise "Couldn't unlink all of #{filenames.join(" ")}: #{err_flg}"
+
+File.unlink(file)
+
+count = filenames.length
+filenames.each do |file|
+  begin
+    File.unlink(file)
+  rescue
+    count -= 1
+  end
+end
+if count != filenames.length
+  STDERR.puts "could only delete #{count} of #{filenames.length} files"
+end
+
+
+# @@PLEAC@@_9.3
+require "ftools"
+File.copy(oldfile, newfile)
+
+infile  = File.open(oldfile, "r")
+outfile = File.open(newfile, "w")
+
+blksize = infile.stat.blksize
+# This doesn't handle partial writes or ^Z
+# like the Perl version does.
+while (line = infile.read(blksize))
+  outfile.write(line)
+end
+
+infile.close
+outfile.close
+
+system("cp #{oldfile} #{newfile}")    # unix
+system("copy #{oldfile} #{newfile}")  # dos, vms
+
+require "ftools"
+File.copy("datafile.dat", "datafile.bak")
+File.move("datafile.new", "datafile.dat")
+
+
+# @@PLEAC@@_9.4
+$seen = {} # must use global var to be seen inside of method below
+
+def do_my_thing(filename)
+    dev, ino = File.stat(filename).dev, File.stat(filename).ino
+    unless $seen[[dev, ino]]
+        # do something with $filename because we haven't
+        # seen it before
+    end
+    $seen[[dev, ino]] = $seen[[dev, ino]].to_i + 1
+end
+
+files.each do |filename|
+    dev, ino = File.stat(filename).dev, File.stat(filename).ino
+    if !$seen.has_key?([dev, ino])
+        $seen[[dev, ino]] = []
+    end
+    $seen[[dev, ino]].push(filename)
+end
+
+$seen.keys.sort.each do |devino|
+    ino, dev = devino
+    if $seen[devino].length > 1
+        # $seen[devino] is a list of filenames for the same file
+    end
+end
+
+
+# @@PLEAC@@_9.5
+Dir.open(dirname) do |dir|
+    dir.each do |file|
+        # do something with dirname/file
+        puts file
+    end
+end
+# Dir.close is automatic
+
+# No -T equivalent in Ruby
+
+dir.each do |file|
+    next if file =~ /^\.\.?$/
+    # ...
+end
+
+def plainfiles(dir)
+    dh = Dir.open(dir)
+    dh.entries.grep(/^[^.]/).
+        map      {|file| "#{dir}/#{file}"}.
+        find_all {|file| test(?f, file)}.
+        sort
+end
+
+
+# @@PLEAC@@_9.6
+list = Dir.glob("*.c")
+
+dir = Dir.open(path)
+files = dir.entries.grep(/\.c$/)
+dir.close
+
+files = Dir.glob("*.c")
+files = Dir.open(path).entries.grep(/\.[ch]$/i)
+
+dir = Dir.new(path)
+files = dir.entries.grep(/\.[ch]$/i)
+
+begin
+  d = Dir.open(dir)
+rescue Errno::ENOENT
+  raise "Couldn't open #{dir} for reading: #{$!}"
+end
+
+files = []
+d.each do |file|
+  puts file
+  next unless file =~ /\.[ch]$/i
+
+  filename = "#{dir}/#{file}"
+  # There is no -T equivalent in Ruby, but we can still test emptiness
+  files.push(filename) if test(?s, filename)
+end
+
+dirs.entries.grep(/^\d+$/).
+             map    { |file| [file, "#{path}/#{file}"]} .
+             select { |file| test(?d, file[1]) }.
+             sort   { |a,b|  a[0] <=> b[0] }.
+             map    { |file| file[1] }
+
+
+# @@PLEAC@@_9.7
+require 'find'
+Find.find(dirlist) do |file|
+  # do whatever
+end
+
+require 'find'
+argv = ARGV.empty? ? %w{.} : ARGV
+Find.find(*argv) do |file|
+  print file, (test(?d, file) ? "/\n" : "\n")
+end
+
+require 'find'
+argv = ARGV.empty? ? %w{.} : ARGV
+sum = 0
+Find.find(*argv) do |file|
+  size = test(?s, file) || 0
+  sum += size
+end
+puts "#{argv.join(' ')} contains #{sum} bytes"
+
+require 'find'
+argv = ARGV.empty? ? %w{.} : ARGV
+saved_size, saved_name = -1, ""
+Find.find(*argv) do |file|
+  size = test(?s, file) || 0
+  next unless test(?f, file) && size > saved_size
+  saved_size = size
+  saved_name = file
+end
+puts "Biggest file #{saved_name} in #{argv.join(' ')} is #{saved_size}"
+
+require 'find'
+argv = ARGV.empty? ? %w{.} : ARGV
+age, name = nil
+Find.find(*argv) do |file|
+  mtime = File.stat(file).mtime
+  next if age && age > mtime
+  age = mtime
+  name = file
+end
+puts "#{name} #{age}"
+
+#-----------------------------
+#!/usr/bin/ruby -w
+# fdirs - find all directories
+require 'find'
+argv = ARGV.empty? ? %w{.} : ARGV
+File.find(*argv) { |file| puts file if test(?d, file) }
+#-----------------------------
+
+
+# @@PLEAC@@_9.8
+require 'fileutils'
+
+puts "Usage #{$0} dir ..." if ARGV.empty?
+ARGV.each do |dir|
+  FileUtils.rmtree(dir)
+end
+
+
+# @@PLEAC@@_9.9
+require 'ftools'
+names.each do |file|
+  newname = file
+  begin
+    File.move(file, newname)
+  rescue Errno::EPERM
+    $stderr.puts "Couldn't rename #{file} to #{newname}: #{$!}"
+  end
+end
+
+require 'ftools'
+op = ARGV.empty? ? (raise "Usage: rename expr [files]\n") : ARGV.shift
+argv = ARGV.empty? ? $stdin.readlines.map { |f| f.chomp } : ARGV
+argv.each do |file|
+  was = file
+  file = eval("file.#{op}")
+  File.move(was, file) unless was == file
+end
+
+
+# @@PLEAC@@_9.10
+base = File.basename(path)
+dir  = File.dirname(path)
+# ruby has no fileparse equivalent
+dir, base = File.split(path)
+ext = base.scan(/\..*$/).to_s
+
+path = '/usr/lib/libc.a'
+file = File.basename(path)
+dir  = File.dirname(path)
+
+puts "dir is #{dir}, file is #{file}"
+# dir is /usr/lib, file is libc.a
+
+path = '/usr/lib/libc.a'
+dir, filename = File.split(path)
+name, ext = filename.split(/(?=\.)/)
+puts "dir is #{dir}, name is #{name}, ext is #{ext}"
+#   NOTE: The Ruby code prints
+#   dir is /usr/lib, name is libc, extension is .a
+#     while the Perl code prints a '/' after the directory name
+#   dir is /usr/lib/, name is libc, extension is .a
+
+# No fileparse_set_fstype() equivalent in ruby
+
+def extension(path)
+    ext = path.scan(/\..*$/).to_s
+    ext.sub(/^\./, "")
+end
+
+
+# @@PLEAC@@_9.11
+#-----------------------------
+#!/usr/bin/ruby -w
+# symirror - build spectral forest of symlinks
+
+require 'find'
+require 'fileutils'
+
+raise "usage: #{$0} realdir mirrordir" unless ARGV.size == 2
+
+srcdir,dstdir = ARGV
+srcmode = File::stat(srcdir).mode
+Dir.mkdir(dstdir, srcmode & 07777) unless test(?d, dstdir)
+
+# fix relative paths
+Dir.chdir(srcdir) {srcdir = Dir.pwd}
+Dir.chdir(dstdir) {dstdir = Dir.pwd}
+
+Find.find(srcdir) do |srcfile| 
+    if test(?d, srcfile)
+        dest = srcfile.sub(/^#{srcdir}/, dstdir)
+        dmode = File::stat(srcfile).mode & 07777
+        Dir.mkdir(dest, dmode) unless test(?d, dest)
+        a = Dir["#{srcfile}/*"].reject{|f| test(?d, f)}
+        FileUtils.ln_s(a, dest)
+    end
+end
+
+
+# @@PLEAC@@_9.12
+# we use the Getopt/Declare library here for convenience:
+#   http://raa.ruby-lang.org/project/getoptdeclare/
+#-----------------------------
+#!/usr/bin/ruby -w
+# lst - list sorted directory contents (depth first)
+
+require 'find'
+require 'etc'
+require "Getopt/Declare"
+
+# Note: in the option-spec below there must by at least one hard
+# tab in between each -option and its description. For example
+#    -i <tab> read from stdin
+
+opts = Getopt::Declare.new(<<'EOPARAM')
+    ============
+    Input Format:
+        -i	read from stdin
+    ============
+    Output Format:
+        -l	long listing
+        -r	reverse listing
+    ============
+    Sort on: (one of)
+        -m	mtime (modify time - default)
+                {$sort_criteria = :mtime}
+        -u	atime (access time)
+                {$sort_criteria = :atime}
+        -c	ctime (inode change time)
+                {$sort_criteria = :ctime}
+        -s	size
+                {$sort_criteria = :size}
+        [mutex: -m -u -c -s]
+
+EOPARAM
+
+$sort_criteria ||= :mtime
+files = {}
+DIRS = opts['-i'] ? $stdin.readlines.map{|f|f.chomp!} : ARGV
+DIRS.each do |dir|
+    Find.find(dir) do |ent|
+        files[ent] = File::stat(ent)
+    end
+end
+entries = files.keys.sort_by{|f| files[f].send($sort_criteria)}
+entries = entries.reverse unless opts['-r']
+
+entries.each do |ent|
+    unless opts['-l']
+        puts ent
+        next
+    end
+    stats = files[ent]
+    ftime = stats.send($sort_criteria == :size ? :mtime : $sort_criteria)
+    printf "%6d %04o %6d %8s %8s %8d %s %s\n",
+        stats.ino,
+        stats.mode & 07777,
+        stats.nlink,
+        ETC::PASSWD[stats.uid].name,
+        ETC::GROUP[stats.gid].name,
+        stats.size,
+        ftime.strftime("%a %b %d %H:%M:%S %Y"),
+        ent
+end
+
+
+# @@PLEAC@@_10.0
+def hello
+    $greeted += 1      # in Ruby, a variable beginning with $ is global (can be any type of course)
+    puts "hi there!"
+end
+
+# We need to initialize $greeted before it can be used, because "+=" is waiting a Numeric object
+$greeted = 0
+hello                  # note that appending () is optional to function calls with no parameters
+
+
+# @@PLEAC@@_10.1
+# In Ruby, parameters are named anyway
+def hypotenuse(side1, side2)
+    Math.sqrt(side1**2 + side2**2)    # the sqrt function comes from the Math module
+end
+diag = hypotenuse(3, 4)
+
+puts hypotenuse(3, 4)
+
+a = [3, 4]
+print hypotenuse(*a)                  # the star operator will magically convert an Array into a "tuple"
+
+both = men + women
+
+# In Ruby, all objects are references, so the same problem arises; we then return a new object
+nums = [1.4, 3.5, 6.7]
+def int_all(n)
+    n.collect { |v| v.to_i }
+end
+ints = int_all(nums)
+
+nums = [1.4, 3.5, 6.7]
+def trunc_em(n)
+    n.collect! { |v| v.to_i }         # the bang-version of collect modifies the object
+end
+trunc_em(nums)
+
+# Ruby has two chomp version:
+# ``chomp'' chomps the record separator and returns what's expected
+# ``chomp!'' does the same but also modifies the parameter object
+
+
+# @@PLEAC@@_10.2
+def somefunc
+    variable = something  # variable is local by default
+end
+
+name, age = ARGV
+start     = fetch_time
+
+a, b = pair               # will succeed if pair is an Array object (like ARGV is)
+c = fetch_time
+
+# In ruby, run_check can't access a, b, or c until they are
+# explicitely defined global (using leading $), even if they are
+# both defined in the same scope
+
+def check_x(x)
+    y = "whatever"
+    run_check
+    if $condition
+        puts "got $x"
+    end
+end
+
+# The following will keep a reference to the array, though the
+# results will be slightly different from perl: the last element
+# of $global_array will be itself an array
+def save_array(ary)
+    $global_array << ary
+end
+
+# The following gives the same results as in Perl for $global_array,
+# though it doesn't illustrate anymore the way to keep a reference
+# to an object: $global_array is extended with the elements of ary
+def save_array(ary)
+    $global_array += ary
+end
+
+
+# @@PLEAC@@_10.3
+# In Ruby, AFAIK a method cannot access "local variables" defined
+# upper scope; mostly because everything is an object, so you'll
+# do the same by defining an attribute or a static attribute
+
+# In Ruby the BEGIN also exists:
+BEGIN { puts "hello from BEGIN" }
+puts "hello from main"
+BEGIN { puts "hello from 2nd BEGIN" }
+# gives:
+#   hello from BEGIN
+#   hello from 2nd BEGIN
+#   hello from main
+
+# In Ruby, it can be written as a static method and a static
+# variable
+class Counter
+    @@counter = 0
+    def Counter.next_counter; @@counter += 1; end
+end
+
+# There is no need of BEGIN since the variable will get
+# initialized when parsing
+class Counter
+    @@counter = 42
+    def Counter.next_counter; @@counter += 1; end
+    def Counter.prev_counter; @@counter -= 1; end
+end
+
+
+# @@PLEAC@@_10.4
+# You can either get the whole trace as an array of strings, each
+# string telling which file, line and method is calling:
+caller
+
+# ...or only the last caller
+caller[0]
+
+# We need to extract just the method name of the backtrace:
+def whoami;  caller()[0] =~ /in `([^']+)'/ ? $1 : '(anonymous)'; end
+def whowasi; caller()[1] =~ /in `([^']+)'/ ? $1 : '(anonymous)'; end
+
+
+# @@PLEAC@@_10.5
+# In Ruby, every value is a reference on an object, thus there is
+# no such problem
+array_diff(array1, array2)
+
+def add_vecpair(a1, a2)
+    results = []
+    a1.each_index { |i| results << (a1[i] + a2[i]) }
+    results
+end
+a = [1, 2]
+b = [5, 8]
+c = add_vecpair(a, b)
+p c
+
+# Add this to the beginning of the function to check if we were
+# given two arrays
+a1.type == Array && a2.type == Array or
+    raise "usage: add_vecpair array1 array2 (was used with: #{a1.type} #{a2.type})"
+
+
+# @@PLEAC@@_10.6
+# There is no return context in Ruby
+
+
+# @@PLEAC@@_10.7
+# Like in Perl, we need to fake with a hash, but it's dirty :-(
+def thefunc(param_args)
+    args = { 'INCREMENT' => '10s', 'FINISH' => '0', 'START' => 0 }
+    args.update(param_args)
+    if (args['INCREMENT']  =~ /m$/ )
+        # .....
+    end
+end
+
+thefunc({ 'INCREMENT' => '20s', 'START' => '+5m', 'FINISH' => '+30m' })
+thefunc({})
+
+
+# @@PLEAC@@_10.8
+# there is no "undef" direct equivalent but there is the slice equiv:
+a, c = func.indexes(0, 2)
+
+
+# @@PLEAC@@_10.9
+# Ruby has no such limitation:
+def somefunc
+    ary = []
+    hash = {}
+    # ...
+    return ary, hash
+end
+arr, dict = somefunc
+
+array_of_hashes = fn
+h1, h2, h3      = fn
+
+
+# @@PLEAC@@_10.10
+return
+# or (equivalent)
+return nil
+
+
+# @@PLEAC@@_10.11
+# You can't prototype in Ruby regarding types :-(
+# Though, you can force the number of arguments:
+def func_with_no_arg; end
+def func_with_no_arg(); end
+def func_with_one_arg(a1); end
+def func_with_two_args(a1, a2); end
+def func_with_any_number_of_args(*args); end
+
+
+# @@PLEAC@@_10.12
+raise "some message"        # raise exception
+
+begin
+    val = func
+rescue Exception => msg
+    $stderr.puts "func raised an exception: #{msg}"
+end
+
+# In Ruby the rescue statement uses an exception class, every
+# exception which is not matched is still continuing
+begin
+    val = func
+rescue FullMoonError
+    ...
+end
+
+
+# @@PLEAC@@_10.13
+# Saving Global Values
+# Of course we can just save the value and restore it later:
+def print_age
+    puts "Age is #{$age}"
+end
+
+$age = 18         # global variable
+print_age()
+if condition
+    safeage = $age
+    $age = 23
+    print_age()
+    $age = safeage
+end
+
+# We can also use a method that saves the global variable and
+# restores it automatically when the block is left:
+
+def local(var)
+    eval("save = #{var.id2name}")
+    begin
+        result = yield
+    ensure
+        # we want to call this even if we got an exception
+        eval("#{var.id2name} = save")
+    end
+    result
+end
+
+condition = true
+$age = 18
+print_age()
+if condition
+    local(:$age) {
+        $age = 23
+        print_age()
+    }
+end
+print_age()
+
+# There is no need to use local() for filehandles or directory
+# handles in ruby because filehandles are normal objects.
+
+
+# @@PLEAC@@_10.14
+# In Ruby you may redefine a method [but not overload it :-(]
+# just by defining again with the same name.
+def foo; puts 'foo'; end
+def foo; puts 'bar'; end
+foo
+#=> bar
+
+# You can also take a reference to an existing method before
+# redefining a new one, using the `alias' keyword
+def foo; puts 'foo'; end
+alias foo_orig foo
+def foo; puts 'bar'; end
+foo_orig
+foo
+#=> foo
+#=> bar
+
+# AFAIK, there is no direct way to create a new method whose name
+# comes from a variable, so use "eval"
+colors = %w(red blue green yellow orange purple violet)
+colors.each { |c|
+    eval <<-EOS
+    def #{c}(*a)
+        "<FONT COLOR='#{c}'>" + a.to_s + "</FONT>"
+    end
+    EOS
+} 
+
+
+# @@PLEAC@@_10.15
+def method_missing(name, *args)
+    "<FONT COLOR='#{name}'>" + args.join(' ') + "</FONT>"
+end
+puts chartreuse("stuff")
+
+
+# @@PLEAC@@_10.16
+def outer(arg)
+    x = arg + 35
+    inner = proc { x * 19 }
+    x + inner.call()
+end
+
+
+# @@PLEAC@@_10.17
+#!/usr/bin/ruby -w
+# mailsort - sort mbox by different criteria
+require 'English'
+require 'Date'
+
+# Objects of class Mail represent a single mail.
+class Mail
+    attr_accessor :no
+    attr_accessor :subject
+    attr_accessor :fulltext
+    attr_accessor :date
+
+    def initialize
+        @fulltext = ""
+        @subject = ""
+    end
+
+    def append(para)
+        @fulltext << para
+    end
+
+    # this is called if you call puts(mail)
+    def to_s
+        @fulltext
+    end
+end
+
+# represents a list of mails.
+class Mailbox < Array
+
+    Subjectpattern = Regexp.new('Subject:\s*(?:Re:\s*)*(.*)\n')
+    Datepattern = Regexp.new('Date:\s*(.*)\n')
+
+    # reads mails from open file and stores them
+    def read(file)
+        $INPUT_RECORD_SEPARATOR = ''  # paragraph reads
+        msgno = -1
+        file.each { |para|
+            if para =~ /^From/
+                mail = Mail.new
+                mail.no = (msgno += 1)
+                md = Subjectpattern.match(para)
+                if md
+                    mail.subject = md[1]
+                end
+                md = Datepattern.match(para)
+                if md
+                    mail.date = DateTime.parse(md[1])
+                else
+                    mail.date = DateTime.now
+                end
+                self.push(mail)
+            end
+            mail.append(para) if mail
+        }
+    end
+
+    def sort_by_subject_and_no
+        self.sort_by { |m|
+            [m.subject, m.no]
+        }
+    end
+
+    # sorts by a list of attributs of mail, given as symbols
+    def sort_by_attributs(*attrs)
+        # you can sort an Enumerable by an array of
+        # values, they would be compared
+        # from ary[0] to ary[n]t, say:
+        # ['b',1] > ['a',10] > ['a',9]
+        self.sort_by { |elem|
+            attrs.map { |attr|
+                elem.send(attr)
+            }
+        }
+    end
+
+end
+
+mailbox = Mailbox.new
+mailbox.read(ARGF)
+
+# print only subjects sorted by subject and number
+for m in mailbox.sort_by_subject_and_no
+    puts(m.subject)
+end
+
+# print complete mails sorted by date, then subject, then number
+for m in mailbox.sort_by_attributs(:date, :subject)
+    puts(m)
+end
+
+
+# @@PLEAC@@_11.7
+def mkcounter(count)
+    start  = count 
+    bundle = { 
+        "NEXT"   => proc { count += 1 },
+        "PREV"   => proc { count -= 1 },
+        "RESET"  => proc { count = start }
+    }
+    bundle["LAST"] = bundle["PREV"]
+    return bundle
+end
+
+c1 = mkcounter(20)
+c2 = mkcounter(77)
+
+puts "next c1: #{c1["NEXT"].call}"  # 21 
+puts "next c2: #{c2["NEXT"].call}"  # 78 
+puts "next c1: #{c1["NEXT"].call}"  # 22 
+puts "last c1: #{c1["PREV"].call}"  # 21 
+puts "last c1: #{c1["LAST"].call}"  # 20 
+puts "old  c2: #{c2["RESET"].call}" # 77 
+
+
+# @@PLEAC@@_11.15
+class Binary_tree
+    def initialize(val)
+        @value = val
+        @left = nil
+        @right = nil
+    end
+    
+    # insert given value into proper point of
+    # provided tree.  If no tree provided, 
+    # use implicit pass by reference aspect of @_
+    # to fill one in for our caller.
+    def insert(val)
+        if val < @value then
+            if @left then
+                @left.insert(val)
+            else
+                @left = Binary_tree.new(val)
+            end
+        elsif val > @value then
+            if @right then
+                @right.insert(val)
+            else
+                @right = Binary_tree.new(val)
+            end
+        else
+            puts "double"
+            # do nothing, no double values
+        end
+    end
+
+    # recurse on left child, 
+    # then show current value, 
+    # then recurse on right child.  
+    def in_order
+        @left.in_order if @left
+        print @value, " "
+        @right.in_order if @right
+    end
+    
+    # show current value, 
+    # then recurse on left child, 
+    # then recurse on right child.
+    def pre_order
+        print @value, " "
+        @left.pre_order if @left
+        @right.pre_order if @right
+    end
+
+    # recurse on left child, 
+    # then recurse on right child,
+    # then show current value.
+    def post_order
+        @left.post_order if @left
+        @right.post_order if @right
+        print @value, " "
+    end
+
+    # find out whether provided value is in the tree.
+    # if so, return the node at which the value was found.
+    # cut down search time by only looking in the correct
+    # branch, based on current value.
+    def search(val)
+        if val == @value then
+            return self
+        elsif val < @value then
+            return @left.search(val) if @left
+            return nil
+        else
+            return @right.search(val) if @right
+            return nil
+        end
+    end
+end
+
+# first generate 20 random inserts
+test = Binary_tree.new(0)
+for a in 0..20
+    test.insert(rand(1000)) 
+end
+
+# now dump out the tree all three ways
+print "Pre order:  ";  test.pre_order;  puts ""
+print "In order:  ";  test.in_order;  puts ""
+print "Post order:  ";  test.post_order;  puts ""
+
+print "search?"
+while gets
+    print test.search($_.to_i)
+    print "\nsearch?"
+end
+
+
+# @@PLEAC@@_12.0
+# class and module names need to have the first letter capitalized
+module Alpha
+    NAME = 'first'
+end
+module Omega
+    NAME = 'last'
+end
+puts "Alpha is #{Alpha::NAME}, Omega is #{Omega::NAME}"
+
+# ruby doesn't differentiate beteen compile-time and run-time
+require 'getoptlong.rb'
+require 'getoptlong'     # assumes the .rb
+require 'cards/poker.rb'
+require 'cards/poker'    # assumes the .rb
+load    'cards/poker'    # require only loads the file once
+
+module Cards
+    module Poker
+        @card_deck = Array.new # or @card_deck = []
+        def shuffle
+        end
+    end
+end
+
+
+# @@PLEAC@@_12.1
+# a module exports all of its functions
+module Your_Module
+    def self.function
+        # this would be called as Your_Module.function
+    end
+    
+    def Your_Module.another
+        # this is the same as above, but more specific
+    end
+end
+
+# @@PLEAC@@_12.2
+begin
+    require 'nonexistent'
+rescue LoadError
+    puts "Couldn't load #{$!}"  # $! contains the last error string
+end
+
+# @@PLEAC@@_12.4
+# module variables are private unless access functions are defined
+module Alpha
+    @aa = 10
+    @bb = 11
+    
+    def self.put_aa
+        puts @aa
+    end
+    
+    def self.bb=(val)
+        @bb = val
+    end
+end
+
+Alpha.bb = 12
+# Alpha.aa = 10 # error, no aa=method
+
+
+# @@PLEAC@@_12.5
+# caller provides a backtrace of the call stack
+module MyModule
+    def find_caller
+        caller
+    end
+
+    def find_caller2(i)
+        caller(i) # an argument limits the size of the stack returned
+    end
+end
+
+
+# @@PLEAC@@_12.6
+BEGIN {
+    $logfile = '/tmp/mylog' unless defined? $logfile
+    $LF = File.open($logfile, 'a')
+}
+
+module Logger
+    def self.logmsg(msg)
+        $LF.puts msg
+    end
+
+    logmsg('startup')
+end
+
+END {
+    Logger::logmsg('shutdown')
+    $LF.close
+}
+
+
+# @@PLEAC@@_12.7
+#-----------------------------
+# results may be different on your system
+# % ruby -e "$LOAD_PATH.each_index { |i| printf("%d %s\n", i, $LOAD_PATH[i] }
+#0 /usr/local/lib/site_ruby/1.6
+#1 /usr/local/lib/site_ruby/1.6/i386-linux
+#2 /usr/local/lib/site_ruby/
+#3 /usr/lib/ruby/1.6
+#4 /usr/lib/ruby/1.6/i136-linux
+#5 .
+#-----------------------------
+# syntax for sh, bash, ksh, or zsh
+#$ export RUBYLIB=$HOME/rubylib
+
+# syntax for csh or tcsh
+# % setenv RUBYLIB ~/rubylib
+#-----------------------------
+$LOAD_PATH.unshift "/projects/spectre/lib";
+
+
+# @@PLEAC@@_12.8
+# equivalents in ruby are mkmf, SWIG, or Ruby/DL depending on usage
+
+
+# @@PLEAC@@_12.9
+# no equivalent in ruby
+
+
+# @@PLEAC@@_12.10
+# no equivalent in ruby
+
+
+# @@PLEAC@@_12.11
+module FineTime
+    def self.time
+        # to be defined later
+    end
+end
+
+
+module FineTime
+    def self.time
+        "its a fine time"
+    end
+end
+
+puts FineTime.time #=> "its a fine time"
+
+
+# @@PLEAC@@_12.12
+def even_only(n)
+    raise "#{n} is not even" if (n & 1) != 0  # one way to test
+    # ...
+end
+def even_only(n)
+    $stderr.puts "#{n} is not even" if (n & 1) != 0
+    # ...
+end
+
+
+# @@PLEAC@@_12.17
+# The library archive for ruby is called Ruby Application archive,
+# or shorter RAA, and can be found at http://raa.ruby-lang.org.
+# A typical library is installed like this:
+# % gunzip some-module-4.54.tar.gz
+# % tar xf some-module-4.54.tar
+# % cd some-module-4.54.tar
+# % ruby install.rb config
+# % ruby install.rb setup
+# get superuser previleges here if needed for next step
+# % ruby install.rb install
+
+# Some modules use a different process,
+# you should find details in the documentation
+# Here is an example of such a different process
+# % ruby extconf.rb
+# % make
+# % make install
+
+# If you want the module installed in your own directory:
+# For ruby version specific libraries
+# % ruby install.rb config --site-ruby=~/lib
+# For version independent libraries
+# % ruby install.rb config --site-ruby-common=~/lib
+
+# Information about possible options for config
+# % ruby install.rb --help
+
+# If you have your own complete distribution
+# % ruby install.rb --prefix=path=~/ruby-private
+
+
+# @@PLEAC@@_13.0
+# Classes and objects in Ruby are rather straigthforward
+class Person
+    # Class variables (also called static attributes) are prefixed by @@
+    @@person_counter=0
+    
+    # object constructor
+    def initialize(age, name, alive = true)     # Default arg like in C++
+        @age, @name, @alive = age, name, alive  # Object attributes are prefixed by '@'
+        @@person_counter += 1
+          # There is no '++' operator in Ruby. The '++'/'--'  operators are in fact 
+          # hidden assignments which affect variables, not objects. You cannot accomplish
+          # assignment via method. Since everything in Ruby is object, '++' and '--' 
+          # contradict Ruby OO ideology. Instead '-=' and '+=' are used.
+    end
+    
+    attr_accessor :name, :age   # This creates setter and getter methods for @name
+                                # and @age. See 13.3 for detailes.
+    
+    # methods modifying the receiver object usually have the '!' suffix
+    def die!
+        @alive = false
+        puts "#{@name} has died at the age of #{@age}."
+        @alive
+    end
+    
+    def kill(anotherPerson)
+        print @name, ' is killing ', anotherPerson.name, ".\n"
+        anotherPerson.die!
+    end
+
+    # methods used as queries
+    # usually have the '?' suffix    
+    def alive?
+        @alive && true
+    end
+    
+    def year_of_birth
+        Time.now.year - @age
+    end
+    
+    # Class method (also called static method)
+    def Person.number_of_people
+        @@person_counter
+    end
+end
+
+# Using the class:
+# Create objects of class Person
+lecter = Person.new(47, 'Hannibal')
+starling = Person.new(29, 'Clarice', true)
+pazzi = Person.new(40, 'Rinaldo', true)
+
+# Calling a class method
+print "There are ", Person.number_of_people, " Person objects\n"
+
+print pazzi.name, ' is ', (pazzi.alive?) ? 'alive' : 'dead', ".\n"
+lecter.kill(pazzi)
+print pazzi.name, ' is ', (pazzi.alive?) ? 'alive' : 'dead', ".\n"
+
+print starling.name , ' was born in ', starling.year_of_birth, "\n"
+
+
+# @@PLEAC@@_13.1
+# If you don't need any initialisation in the constructor,
+# you don't need to write a constructor.
+class MyClass
+end
+
+class MyClass
+    def initialize
+        @start = Time.new
+        @age = 0
+    end
+end
+
+class MyClass
+    def initialize(inithash)
+        @start = Time.new
+        @age = 0
+        for key, value in inithash
+            instance_variable_set("@#{key}", value)
+        end
+    end
+end
+
+# @@PLEAC@@_13.2
+# Objects are destroyed by the garbage collector.
+# The time of destroying is not predictable.
+# The ruby garbage collector can handle circular references,
+# so there is no need to write destructor for that.
+
+# There is no direct support for destructor.
+# You can call a custom function, or more specific a proc object, when the
+# garbage collector is about to destruct the object, but it is unpredictable
+# when this occurs.
+# Also if such a finalizer object has a reference to the orignal object,
+# this may prevent the original object to get garbage collected.
+# Because of this problem the finalize method below is
+# a class method and not a instance method.
+# So if you need to free resources for an object, like
+# closing a socket or kill a spawned subprocess,
+# you should do it explicitly.
+
+class MyClass
+    def initialize
+        ObjectSpace.define_finalizer(self,
+                                     self.class.method(:finalize).to_proc)
+    end
+    def MyClass.finalize(id)
+        puts "Object #{id} dying at #{Time.new}"
+    end
+end
+
+# test code
+3.times {
+    MyClass.new
+}
+ObjectSpace.garbage_collect
+
+
+# @@PLEAC@@_13.3
+# You can write getter and setter methods in a natural way:
+class Person
+    def name
+        @name
+    end
+    def name=(name)
+        @name = name
+    end
+end
+
+# But there is a better and shorter way
+class Person
+    attr_reader :age
+    attr_writer :name  
+    # attr_reader and attr_writer are actually methods in class Class
+    # which set getter and setter methods for you.
+end
+
+# There is also attr_accessor to create both setters and getters
+class Person
+    attr_accessor :age, :name
+end
+
+
+# @@PLEAC@@_13.4
+class Person
+    # Class variables (also called static attributes) are prefixed by @@
+    @@person_counter = 0
+    
+    def Person.population
+        @@person_counter
+    end
+    def initialize
+        @@person_counter += 1
+        ObjectSpace.define_finalizer(self,
+                                     self.class.method(:finalize).to_proc)
+    end
+    def Person.finalize(id)
+        @@person_counter -= 1
+    end
+end
+people = []
+10.times {
+    people.push(Person.new)
+}
+printf("There are %d people alive", Person.population)
+
+
+FixedArray.class_max_bounds = 100
+alpha = FixedArray.new
+puts "Bound on alpha is #{alpha.max_bounds}"
+
+beta = FixedArray.new
+beta.max_bounds = 50                    # calls the instance method
+beta.class.class_max_bounds = 50        # alternative, calls the class method
+puts "Bound on alpha is #{alpha.max_bounds}"
+    
+class FixedArray
+    @@bounds = 7
+    
+    def max_bounds
+        @@max_bounds
+    end
+    # instance method, which sets the class variable
+    def max_bounds=(value)
+        @@max_bounds = value
+    end
+    # class method. This can only be called on a class,
+    # but not on the instances
+    def FixedArray.class_max_bounds=(value)
+        @@max_bounds = value
+    end
+end
+
+
+# @@PLEAC@@_13.5
+PersonStruct = Struct.new("Person", :name, :age, :peers)
+# creates a class "Person::Struct", which is accessiable with the
+# constant "PersonStruct"
+p = PersonStruct.new
+p = Struct::Person.new                      # alternative using the classname
+p.name = "Jason Smythe"
+p.age = 13
+p.peers = ["Wilbur", "Ralph", "Fred"]
+p[:peers] = ["Wilbur", "Ralph", "Fred"]     # alternative access using symbol
+p["peers"] = ["Wilbur", "Ralph", "Fred"]    # alternative access using name of field
+p[2] = ["Wilbur", "Ralph", "Fred"]          # alternative access using index of field
+puts "At age #{p.age}, #{p.name}'s first friend is #{p.peers[0]}"
+
+# The fields of a struct have no special type, like other ruby variables
+# you can put any objects in. Therefore the discussions how to specify
+# the types of the fields do not apply to ruby.
+
+FamilyStruct = Struct.new("Family", :head, :address, :members)
+folks = FamilyStruct.new
+folks.head = PersonStruct.new
+dad = folks.head
+dad.name = "John"
+dad.age = 34
+
+# supply of own accessor method for the struct for error checking
+class PersonStruct
+    def age=(value)
+        if !value.kind_of?(Integer)
+            raise(ArgumentError, "Age #{value} isn't an Integer")
+        elsif value > 150
+            raise(ArgumentError, "Age #{value} is unreasonable")
+        end
+        @age = value
+    end
+end
+
+
+# @@PLEAC@@_13.6
+# The ruby Object class defines a dup and a clone method.
+# The dup method is recommended for prototype object creation.
+# The default implementation makes a shallow copy,
+# but each class can override it, for example to make a deep copy.
+
+# If you want to call 'new' directly on the instances,
+# you can create a instance method "new", which returns a new duplicate.
+# This method is distinct from the class method new.
+#
+class A
+    def new
+        dup
+    end
+end
+
+ob1 = A.new
+# later on
+ob2 = ob1.new
+
+
+# @@PLEAC@@_13.7
+methname = 'flicker'
+obj.send(methname, 10)      # calls obj.flicker(10)
+
+# call three methods on the object, by name
+['start', 'run', 'stop'].each do |method_string|
+    obj.send(method_string)
+end
+
+# Another way is to create a Method object
+method_obj = obj.method('flicker')
+# And then call it
+method_obj.call(10)
+
+
+# @@PLEAC@@_13.8
+# All classes in Ruby inherit from class Object
+# and thus all objects share methods defined in this class
+
+# the class of the object
+puts any_object.type
+
+# Ruby classes are actually objects of class Class and they
+# respond to methods defined in Object class as well
+
+# the superclass of this class
+puts any_object.class.superclass
+
+# ask an object whether it is an instance of particular class
+n = 4.7
+puts n.instance_of?(Float)    # true
+puts n.instance_of?(Numeric)  # false
+
+# ask an object whether it is an instance of class, one of the
+# superclasses of the object, or modules included in it
+puts n.kind_of?(Float)       # true (the class)
+puts n.kind_of?(Numeric)     # true (an ancestor class)
+puts n.kind_of?(Comparable)  # true (a mixin module)
+puts n.kind_of?(String)      # false
+
+# ask an object whether it can respond to a particular method
+puts n.respond_to?('+')      # true
+puts n.respond_to?('length') # false
+
+# all methods an object can respond to
+'just a string'.methods.each { |m| puts m }
+
+
+# @@PLEAC@@_13.9
+# Actually any class in Ruby is inheritable
+class Person        
+    attr_accessor :age, :name
+    def initialize
+        @name
+        @age
+    end
+end
+#-----------------------------
+dude = Person.new
+dude.name = 'Jason'
+dude.age = 23
+printf "%s is age %d.\n", dude.name, dude.age
+#-----------------------------
+# Inheriting from Person
+class Employee < Person
+    attr_accessor :salary
+end
+#-----------------------------
+empl = Employee.new
+empl.name = 'Jason'
+empl.age = 23
+empl.salary = 200
+printf "%s is age %d, the salary is %d.\n", empl.name, empl.age, empl.salary
+#-----------------------------
+# Any built-in class can be inherited the same way
+class WeirdString < String  
+    def initialize(obj)
+        super obj
+    end
+    def +(anotherObj)   # + method in this class is overridden
+        # to return the sum of string lengths
+        self.length + anotherObj.length  # 'self' can be omitted
+    end  
+end
+#-----------------------------
+a = WeirdString.new('hello')
+b = WeirdString.new('bye')
+
+puts a + b    # the overridden +
+#=> 8
+puts a.length # method from the superclass, String
+#=> 5
+
+
+# @@PLEAC@@_13.11
+# In ruby you can override the method_missing method
+# to have a solution similar to perls AUTOLOAD.
+class Person
+
+    def initialize
+        @ok_fields = %w(name age peers parent)
+    end
+
+    def valid_attribute?(name)
+        @ok_fields.include?(name)
+    end
+
+    def method_missing(namesymbol, *params)
+        name = namesymbol.to_s
+        return if name =~ /^A-Z/
+        if name.to_s[-1] == ('='[0])       # we have a setter
+            isSetter = true
+            name.sub!(/=$/, '')
+        end
+        if valid_attribute?(name)
+            if isSetter
+                instance_variable_set("@#{name}", *params)
+            else
+                instance_variable_get("@#{name}", *params)
+            end
+        else
+            # if no annestor is responsible,
+            # the Object class will throw a NoMethodError exception
+            super(namesymbol, *params)
+        end
+    end
+
+    def new
+        kid = Person.new
+        kid.parent = self
+        kid
+    end
+
+end
+
+dad = Person.new
+dad.name = "Jason"
+dad.age = 23
+kid = dad.new
+kid.name = "Rachel"
+kid.age = 2
+puts "Kid's parent is #{kid.parent.name}"
+puts dad
+puts kid
+
+class Employee < Person
+    def initialize
+        super
+        @ok_fields.push("salary", "boss")
+    end
+    def ok_fields
+        @ok_fields
+    end
+end
+
+
+# @@PLEAC@@_13.13
+# The ruby garbage collector pretends to cope with circular structures.
+# You can test it with this code:
+class RingNode
+    attr_accessor :next
+    attr_accessor :prev
+    attr_reader :name
+
+    def initialize(aName)
+        @name = aName
+        ObjectSpace.define_finalizer(self,
+                                     self.class.method(:finalize).to_proc)
+    end
+
+    def RingNode.finalize(id)
+        puts "Node #{id} dying"
+    end
+
+    def RingNode.show_all_objects
+        ObjectSpace.each_object {|id|
+            puts id.name if id.class == RingNode
+        }
+    end
+end
+
+def create_test
+    a = RingNode.new("Node A")
+    b = RingNode.new("Node B")
+    c = RingNode.new("Node C")
+    a.next = b
+    b.next = c
+    c.next = a
+    a.prev = c
+    c.prev = b
+    b.prev = a
+
+    a = nil
+    b = nil
+    c = nil
+end
+
+create_test
+RingNode.show_all_objects
+ObjectSpace.garbage_collect
+puts "After garbage collection"
+RingNode.show_all_objects
+
+
+# @@PLEAC@@_13.14
+class String
+    def <=>(other)
+        self.casecmp other
+    end
+end
+
+# There is no way to directly overload the '""' (stringify) 
+# operator in Ruby.  However, by convention, classes which 
+# can reasonably be converted to a String will define a 
+# 'to_s' method as in the TimeNumber class defined below.
+# The 'puts' method will automatcally call an object's
+# 'to_s' method as is demonstrated below.
+# Furthermore, if a class defines a to_str method, an object of that
+# class can be used most any place where the interpreter is looking 
+# for a String value.
+
+#---------------------------------------
+# NOTE: Ruby has a builtin Time class which would usually be used 
+# to manipulate time objects, the following is supplied for
+# educational purposes to demonstrate operator overloading.
+#
+class TimeNumber
+    attr_accessor  :hours,:minutes,:seconds
+    def initialize( hours, minutes, seconds)
+        @hours = hours
+        @minutes = minutes
+        @seconds = seconds
+    end
+    
+    def to_s
+        return sprintf( "%d:%02d:%02d", @hours, @minutes, @seconds)
+    end
+
+    def to_str
+        to_s
+    end
+
+    def +( other)
+        seconds = @seconds + other.seconds
+        minutes = @minutes + other.minutes
+        hours = @hours + other.hours
+        if seconds >= 60
+            seconds %= 60
+            minutes += 1
+        end
+        if minutes >= 60
+            minutes %= 60
+            hours += 1
+        end
+        return TimeNumber.new(hours, minutes, seconds)
+    end
+
+    def -(other)
+        raise NotImplementedError
+    end
+
+    def *(other)
+        raise NotImplementedError
+    end
+
+    def /( other)
+        raise NotImplementedError
+    end
+end
+
+t1 = TimeNumber.new(0, 58, 59)
+sec = TimeNumber.new(0, 0, 1)
+min = TimeNumber.new(0, 1, 0)
+puts t1 + sec + min + min
+
+#-----------------------------
+# StrNum class example: Ruby's builtin String class already has the 
+# capabilities outlined in StrNum Perl example, however the '*' operator
+# on Ruby's String class acts differently: It creates a string which
+# is the original string repeated N times.
+#
+# Using Ruby's String class as is in this example:
+x = "Red"; y = "Black"
+z = x+y
+r = z*3 # r is "RedBlackRedBlackRedBlack"
+puts "values are #{x}, #{y}, #{z}, and #{r}"
+print "#{x} is ", x < y ? "LT" : "GE", " #{y}\n"
+# prints:
+# values are Red, Black, RedBlack, and RedBlackRedBlackRedBlack
+# Red is GE Black
+
+#-----------------------------
+class FixNum
+    REGEX = /(\.\d*)/
+    DEFAULT_PLACES = 0
+    attr_accessor :value, :places
+    def initialize(value, places = nil)
+        @value = value
+        if places
+            @places = places
+        else
+            m = REGEX.match(value.to_s) 
+            if m
+                @places = m[0].length - 1
+            else
+                @places = DEFAULT_PLACES
+            end
+        end
+    end
+
+    def +(other)
+        FixNum.new(@value + other.value, max(@places, other.places))
+    end
+
+    def *(other)
+        FixNum.new(@value * other.value, max(@places, other.places))
+    end
+
+    def /(other)
+        puts "Divide: #{@value.to_f/other.value.to_f}"
+        result = FixNum.new(@value.to_f/other.value.to_f)
+        result.places = max(result.places,other.places) 
+        result
+    end
+
+    def to_s
+        sprintf("STR%s: %.*f", self.class.to_s , @places, @value)   #.
+    end  
+
+    def to_str
+        to_s
+    end
+
+    def to_i #convert to int
+        @value.to_i
+    end
+
+    def to_f #convert to float`
+        @value.to_f
+    end
+
+    private
+    def max(a,b)
+        a > b ? a : b
+    end
+end
+
+def demo()
+    x = FixNum.new(40)
+    y = FixNum.new(12, 0)
+
+    puts "sum of #{x} and #{y} is  #{x+y}"
+    puts "product of #{x} and #{y} is #{x*y}"
+
+    z = x/y
+    puts "#{z} has #{z.places} places"
+    unless z.places
+        z.places = 2
+    end
+
+    puts "div of #{x} by #{y} is #{z}"
+    puts "square of that is  #{z*z}"
+end
+
+if __FILE__ == $0
+    demo()
+end
+
+
+# @@PLEAC@@_14.1
+# There are dbm, sdbm, gdbm modules
+# and the bdb module for accessing the berkeley db
+# sdbm seem to be available on the most systems,
+# so we use it here
+#
+require "sdbm"
+SDBM.open("filename", 0666) { |dbobj|
+    # raises exception if open error
+    
+    # the returned sdbm-dbobj has most of the methods of a hash
+    v = dbobj["key"]
+    dbobj["key"] = "newvalue"
+    if dbobj.has_key?("key")
+        # ...
+    end
+    dbobj.delete("key2")
+}
+# database is open only inside the block.
+
+# It is also possible to use a open .. close pair:
+dbobj = SDBM.open("filename", 0666)
+#.. do something with dbobj
+dbobj.close
+
+#!/usr/bin/ruby -w
+# userstats - generate statistics on who is logged in
+# call with usernames as argument to display the totals
+# for the given usernames, call with "ALL" to display all users
+
+require "sdbm"
+filename = '/tmp/userstats.db'
+SDBM.open(filename, 0666) { |dbobj|
+    if ARGV.length > 0
+        if ARGV[0] == "ALL"
+            # ARGV is constant, so we need the variable userlist
+            userlist = dbobj.keys().sort()
+        else
+            userlist = ARGV
+        end
+        userlist.each { |user|
+            print "#{user}\t#{dbobj[user]}\n"
+        }
+    else
+        who = `who`
+        who.split("\n").each { |line|
+            md = /^(\S+)/.match(line)
+            raise "Bad line from who: #{line}" unless md
+            # sdbm stores only strings, so "+=" doesn't work,
+            # we need to convert them expicitly back to integer.
+            if dbobj.has_key?(md[0])
+                dbobj[md[0]] = dbobj[md[0]].to_i + 1
+            else
+                dbobj[md[0]] = "1"
+            end
+        }
+    end
+}
+
+
+# @@PLEAC@@_14.2
+# using open and clear
+dbobj = SDBM.open("filename", 0666)
+dbobj.clear()
+dbobj.close()
+# deleting file and recreating it
+# the filenames depend on the flavor of dbm you use,
+# for example sdbm has two files named filename.pag and filename.dir,
+# so you need to delete both files
+begin
+    File.delete("filename")
+    # raises Exception if not exist
+    dbobj = SDBM.open("filename", 0666)
+rescue
+    # add error handling here
+end
+
+
+# @@PLEAC@@_14.3
+# sdbm2gdbm: converts sdbm database to a gdbm database
+require "sdbm"
+require "gdbm"
+
+unless ARGV.length == 2
+    fail "usage: sdbm2gdbm infile outfile"
+end
+infile = ARGV[0]
+outfile = ARGV[1]
+
+sdb = SDBM.open(infile)
+gdb = GDBM.open(outfile, 0666)
+sdb.each { |key, val|
+    gdb[key] = val
+}
+gdb.close
+sdb.close
+
+
+# @@PLEAC@@_14.4
+#!/usr/bin/ruby -w
+# dbmmerge: merges two dbm databases
+require "sdbm"
+
+unless ARGV.length == 3
+    fail "usage: dbmmerge indb1 indb2 outdb"
+end
+infile1 = ARGV[0]
+infile2 = ARGV[0]
+outfile = ARGV[2]
+
+in1 = SDBM.open(infile1, nil)
+in2 = SDBM.open(infile2, nil)
+outdb = SDBM.open(outfile, 0666)
+
+[in1, in2].each { |indb|
+    indb.each { |key, val|
+        if outdb.has_key?(key)
+            # decide which value to set.
+            # set outdb[key] if necessary
+        else
+            outdb[key] = val
+        end
+    }
+}
+in1.close
+in2.close
+outdb.close
+
+
+# @@PLEAC@@_14.7
+# we write a tie method that extends the Array class.
+# It reads the file into the memory, executes the code block
+# in which you can manipulate the array as needed, and writes
+# the array back to the file after the end of the block execution
+class Array
+    def tie(filename, flags)
+        File.open(filename, flags) { |f|
+            f.each_line { |line|
+                self.push(line.chomp)
+            }
+            yield
+            f.rewind
+            each { |line|
+                if line
+                    f.puts(line)
+                else
+                    f.puts ""
+                end
+            }
+        }
+    end
+end
+
+array = Array.new
+array.tie("/tmp/textfile.txt", File::RDWR|File::CREAT) {
+    array[4] = "a new line 4"
+}
+
+# The tied array can be manipulated like a normal array,
+# so there is no need for a special API, and the recno_demo program
+# to demonstrate is API is useless
+
+
+# tied array demo: show how to use array with a tied file
+filename = "db_file.txt"
+lines = Array.new
+File.unlink(filename) if File.exists?(filename)
+lines.tie(filename, File::RDWR | File::CREAT) {
+    # first create a textfile to play with
+    lines[0] = "zero"
+    lines[1] = "one"
+    lines[2] = "two"
+    lines[3] = "three"
+    lines[4] = "four"
+
+    # print the records in order.
+    # Opposed to perl, the tied array behaves exactly as a normal array
+    puts "\nOriginal"
+    for i in 0..(lines.length-1)
+        puts "#{i}: #{lines[i]}"
+    end
+
+    #use push and pop
+    a = lines.pop
+    lines.push("last")
+    puts("The last line was [#{a}]")
+
+    #use shift and unshift
+    a = lines.shift
+    lines.unshift("first")
+    puts("The first line was [#{a}]")
+
+    # add record after record 2
+    i = 2
+    lines.insert(i + 1, "Newbie")
+
+    # add record before record one
+    i = 1
+    lines.insert(i, "New One")
+
+    # delete record 3
+    lines.delete_at(3)
+
+    #now print the records in reverse order
+    puts "\nReverse"
+    (lines.length - 1).downto(0){ |i|
+        puts "#{i}: #{lines[i]}"
+    }
+
+}
+
+
+# @@PLEAC@@_14.8
+# example to store complex data in a database
+# uses marshall from the standard library
+require "sdbm"
+db = SDBM.open("pleac14-8-database", 0666)
+
+# convert the Objects into strings and back by using the Marshal module.
+# Most normal objects can be converted out of the box,
+# but not special things like procedure objects,
+# IO instance variables, singleton objects
+
+db["Tom Christiansen"] = Marshal.dump(["book author",  "tchrist@perl.com"])
+db["Tom Boutell"] = Marshal.dump(["shareware author",
+"boutell@boutell.com"])
+
+name1 = "Tom Christiansen"
+name2 = "Tom Boutell"
+
+tom1 = Marshal.load(db[name1])
+tom2 = Marshal.load(db[name2])
+
+puts "Two Toming: #{tom1} #{tom2}"
+
+if tom1[0] == tom2[0] && tom1[1] == tom2[1]
+   puts "You're having runtime fun with one Tom made two."
+else
+   puts "No two Toms are ever alike"
+end
+
+# To change parts of an entry, get the whole entry, change the parts,
+# and save the whole entry back
+entry = Marshal.load(db["Tom Boutell"])
+entry[0] = "Poet Programmer"
+db["Tom Boutell"] = Marshal.dump(entry)
+db.close
+
+
+# @@PLEAC@@_14.9
+# example to make data persistent
+# uses Marshal from the standard lib
+# Stores the data in a simple file,
+# see 14.8 on how to store it in a dbm file
+
+# The BEGIN block is executed before the rest of the script
+# we use global variables here because local variables
+# will go out of scope and are not accessible from the main script
+
+BEGIN {
+   $persistent_store = "persitence.dat"
+   begin
+     File.open($persistent_store) do |f|
+       $stringvariable1 = Marshal.load(f)
+       $arrayvariable2 = Marshal.load(f)
+     end
+   rescue
+     puts "Can not open #{$persistent_store}"
+     # Initialisation if this script runs the first time
+     $stringvariable1 = ""
+     $arrayvariable2 = []
+   end
+}
+
+END {
+   File.open($persistent_store, "w+") do |f|
+     Marshal.dump($stringvariable1, f)
+     Marshal.dump($arrayvariable2, f)
+   end
+}
+
+# simple test program
+puts $stringvariable1
+puts $arrayvariable2
+$stringvariable1 = "Hello World"
+$arrayvariable2.push(5)
+puts $stringvariable1
+puts $arrayvariable2
+
+
+# @@PLEAC@@_14.10
+#!/usr/bin/ruby -w
+# Ruby has a dbi module with an architecture similar
+# to the Perl dbi module: the dbi module provides an unified
+# interface and uses specialized drivers for each dbms vendor
+#
+begin
+    DBI.connect("DBI:driver:driverspecific", "username", "auth") {
+        |dbh|
+
+        dbh.do(SQL1)
+
+        dbh.prepare(SQL2){ |sth|
+            sth.execute
+            sth.fetch {|row|
+                # ...
+            }
+        } # end of block finishes the statement handle
+    } # end of block closes the database connection
+rescue DBI::DatabaseError => e
+    puts "dbi error occurred"
+    puts "Error code: #{e.err}"
+    puts "Error message: #{e.errstr}"
+end
+
+#!/usr/bin/ruby -w
+# dbusers - example for mysql which creates a table,
+# fills it with values, retrieves the values back,
+# and finally destroys the table.
+
+require "dbi"
+
+# replacement for the User::pwnt module
+def getpwent
+    result = []
+    File.open("/etc/passwd") {|file|
+        file.each_line {|line|
+            next if line.match(/^#/)
+            cols = line.split(":")
+            result.push([cols[2], cols[0]])
+        }
+    }
+    result
+end
+
+begin
+    DBI.connect("DBI:Mysql:pleacdatabase", "pleac", "pleacpassword") {
+        |conn|
+
+        conn.do("CREATE TABLE users (uid INT, login CHAR(8))")
+
+        users = getpwent
+
+        conn.prepare("INSERT INTO users VALUES (?,?)") {|sth|
+            users.each {|entry|
+                sth.execute(entry[0], entry[1])
+            }
+        }
+
+        conn.execute("SELECT uid, login FROM users WHERE uid < 50") {|sth|
+            sth.fetch {|row|
+                puts row.collect {|col|
+                    if col.nil?
+                        "(null)"
+                    else
+                        col
+                    end
+                }.join(", ")
+            }
+        }
+
+        conn.do("DROP TABLE users")
+    }
+rescue DBI::DatabaseError => e
+    puts "dbi error occurred"
+    puts "Error code: #{e.err}"
+    puts "Error message: #{e.errstr}"
+end
+
+
+# @@PLEAC@@_15.1
+# This test program demonstrates parsing program arguments.
+# It uses the optparse library, which is included with ruby 1.8
+# It handles classic unix style and gnu style options
+require 'optparse'
+
+@debugmode = false
+@verbose = false
+
+ARGV.options do |opts|
+    opts.banner = "Usage: ruby #{$0} [OPTIONS] INPUTFILES"
+
+    opts.on("-h", "--help", "show this message") {
+        puts opts
+        exit
+    }
+    # The OptionParser#on method is called with a specification of short
+    # options, of long options, a data type spezification and user help
+    # messages for this option.
+    # The method analyses the given parameter and decides what it is,
+    # so you can leave out the long option if you don't need it
+    opts.on("-v", "--[no-]verbose=[FLAG]", TrueClass, "run verbosly") {
+        |@verbose|   # sets @verbose to true or false
+    }
+    opts.on("-D", "--DEBUG", TrueClass, "turns on debug mode" ){
+        |@debugmode|   # sets @debugmode to true
+    }
+    opts.on("-c", "--count=NUMBER", Integer, "how many times we do it" ){
+        |@count|      # sets @count to given integer
+    }
+    opts.on("-o", "--output=FILE", String, "file to write output to"){
+        |@outputfile|   # sets @outputfile to given string
+    }
+    opts.parse!
+end
+
+# example to use the options in the main program
+puts "Verbose is on" if @verbose
+puts "Debugmode is on" if @debugmode
+puts "Outfile is #{@outputfile}" if defined? @outputfile
+puts "Count is #{@count}" if defined? @count
+ARGV.each { |param|
+    puts "Got parameter #{param}"
+}
+
+
+# @@PLEAC@@_15.4
+buf = "\0" * 8
+$stdout.ioctl(0x5413, buf)
+ws_row, ws_col, ws_xpixel, ws_ypixel = buf.unpack("S4")
+
+raise "You must have at least 20 characters" unless ws_col >= 20
+max = 0
+values = (1..5).collect { rand(20) }  # generate an array[5] of rand values
+for i in values
+    max = i if max < i
+end
+ratio = Float(ws_col-12)/max          # chars per unit
+for i in values
+    printf "%8.1f %s\n", i, "*" * (ratio*i)
+end
+
+# gives, for example:
+#   15.0 *******************************
+#   10.0 *********************
+#    5.0 **********
+#   14.0 *****************************
+#   18.0 **************************************
+
+
+# @@PLEAC@@_16.1
+output = `program args`       # collect output into one multiline string
+output = `program args`.split # collect output into array, one line per
+element
+
+readme = IO.popen("ls")
+output = ""
+while readme.gets do
+    output += $_
+end
+readme.close
+
+`fsck -y /dev/rsd1a`  # BAD AND SCARY in Perl because it's managed by the shell
+                      # I donna in Ruby ...
+
+# so the "clean and secure" version
+readme, writeme = IO.pipe
+pid = fork {
+    # child
+    $stdout = writeme
+    readme.close
+    exec('find', '..')
+}
+# parent
+Process.waitpid(pid, 0)
+writeme.close
+while readme.gets do
+    # do something with $_
+end
+
+
+# @@PLEAC@@_16.2
+status = system("xemacs #{myfile}")
+
+status = system("xemacs", myfile)
+
+system("cmd1 args | cmd2 | cmd3 >outfile")
+system("cmd args <infile >outfile 2>errfile")
+
+# stop if the command fails
+raise "$program exited funny: #{$?}" unless system("cmd", "args1", "args2")
+
+# get the value of the signal sent to the child
+# even if it is a SIGINT or SIGQUIT
+system(arglist)
+raise "program killed by signal #{$?}" if ($? & 127) != 0
+
+pid = fork {
+    trap("SIGINT", "IGNORE")
+    exec("sleep", "10")
+}
+trap ("SIGINT") {
+    puts "Tsk tsk, no process interruptus"
+}
+Process.waitpid(pid, 0)
+
+# Ruby doesn't permit to lie to the program called by a 'system'.
+# (ie specify what return argv[0] in C, $0 in Perl/Ruby ...)
+# A (dirty) way is to create a link (under Unix), run this link and
+# erase it. Somebody has a best idea ?
+
+
+# @@PLEAC@@_16.3
+exec("archive *.data")
+
+exec("archive", "accounting.data")
+
+exec("archive accounting.data")
+
+
+# @@PLEAC@@_16.4
+# read the output of a program
+IO.popen("ls") {|readme|
+    while readme.gets do
+        # ...
+    end
+}
+# or
+readme = IO.popen("ls")
+while readme.gets do
+    # ...
+end
+readme.close
+
+# "write" in a program
+IO.popen("cmd args","w") {|pipe|
+    pipe.puts("data")
+    pipe.puts("foo")
+}
+
+# close wait for the end of the process
+read = IO.popen("sleep 10000") # child goes to sleep
+read.close                     # and the parent goes to lala land
+
+writeme = IO.popen("cmd args", "w")
+writeme.puts "hello" # program will get hello\n on STDIN
+writeme.close        # program will get EOF on STDIN
+
+# send in a pager (eg less) all output
+$stdout = IO.popen("/usr/bin/less","w")
+print "huge string\n" * 10000
+
+
+# @@PLEAC@@_16.5
+#-----------------------------
+def head(lines = 20)
+    pid = open("|-","w")
+    if pid == nil
+        return
+    else
+        while gets() do
+            pid.print
+            lines -= 1
+            break if lines == 0
+        end
+    end
+    exit
+end
+
+head(100)
+while gets() do
+    print
+end
+#-----------------------------
+1: > Welcome to Linux, version 2.0.33 on a i686
+
+2: > 
+
+3: >     "The software required `Windows 95 or better', 
+
+4: >      so I installed Linux."  
+#-----------------------------
+> 1: Welcome to Linux, Kernel version 2.0.33 on a i686
+
+> 2: 
+
+> 3:     "The software required `Windows 95 or better', 
+
+> 4:      so I installed Linux."  
+#-----------------------------
+#!/usr/bin/ruby
+# qnumcat - demo additive output filters
+
+def number()
+    pid = open("|-","w")
+    if pid == nil
+        return
+    else
+        while gets() do pid.printf("%d: %s", $., $_); end
+    end
+    exit
+end
+
+def quote()
+    pid = open("|-","w")
+    if pid == nil
+        return
+    else
+        while gets() do pid.print "> #{$_}" end
+    end
+    exit
+end
+
+number()
+quote()
+
+while gets() do
+    print
+end
+$stdout.close
+exit
+
+
+# @@PLEAC@@_16.6
+ARGV.map! { |arg|
+    arg =~ /\.(gz|Z)$/ ? "|gzip -dc #{arg}" : arg
+}
+for file in ARGV
+    fh = open(file)
+    while fh.gets() do
+        # .......
+    end
+end
+#-----------------------------
+ARGV.map! { |arg|
+    arg =~ %r#^\w+://# ? "|GET #{arg}" : arg   #
+}
+for file in ARGV
+    fh = open(file)
+    while fh.gets() do
+        # .......
+    end
+end
+#-----------------------------
+pwdinfo = (`domainname` =~ /^(\(none\))?$/) ? '/etc/passwd' : '|ypcat  passwd';
+pwd = open(pwdinfo);
+#-----------------------------
+puts "File, please? ";
+file = gets().chomp();
+fh = open(file);
+
+
+# @@PLEAC@@_16.7
+output = `cmd 2>&1`                            # with backticks
+# or
+ph = open("|cmd 2>&1")                         # with an open pipe
+while ph.gets() { }                            # plus a read
+#-----------------------------
+output = `cmd 2>/dev/null`                     # with backticks
+# or
+ph = open("|cmd 2>/dev/null")                  # with an open pipe
+while ph.gets() { }                            # plus a read
+#-----------------------------
+output = `cmd 2>&1 1>/dev/null`                # with backticks
+# or
+ph = open("|cmd 2>&1 1>/dev/null")             # with an open pipe
+while ph.gets() { }                            # plus a read
+#-----------------------------
+output = `cmd 3>&1 1>&2 2>&3 3>&-`             # with backticks
+# or
+ph = open("|cmd 3>&1 1>&2 2>&3 3>&-")          # with an open pipe
+while ph.gets() { }                            # plus a read
+#-----------------------------
+system("program args 1>/tmp/program.stdout 2>/tmp/program.stderr") 
+#-----------------------------
+output = `cmd 3>&1 1>&2 2>&3 3>&-`  
+#-----------------------------
+fd3 = fd1 
+fd1 = fd2 
+fd2 = fd3 
+fd3 = nil 
+#-----------------------------
+system("prog args 1>tmpfile 2>&1") 
+system("prog args 2>&1 1>tmpfile") 
+#-----------------------------
+# system ("prog args 1>tmpfile 2>&1") 
+fd1 = "tmpfile"          # change stdout destination first
+fd2 = fd1                # now point stderr there, too
+#-----------------------------
+# system("prog args 2>&1 1>tmpfile") 
+fd2 = fd1                # stderr same destination as stdout
+fd1 = "tmpfile"          # but change stdout destination 
+#-----------------------------
+# It is often better not to rely on the shell, 
+# because of portability, possible security problems 
+# and bigger resource usage. So, it is often better to use the open3 library. 
+# See below for an example.
+# opening stdin, stdout, stderr
+require "open3"
+stdin, stdout, stderr = Open3.popen('cmd')
+
+
+# @@PLEAC@@_16.8
+#-----------------------------
+# Contrary to perl, we don't need to use a module in Ruby
+fh = Kernel.open("|" + program, "w+")
+fh.puts "here's your input\n"
+output = fh.gets()
+fh.close()
+#-----------------------------
+Kernel.open("|program"),"w+")    # RIGHT !
+#-----------------------------
+# Ruby has already object methods for I/O handles
+#-----------------------------
+begin
+    fh = Kernel.open("|" + program_and_options, "w+")
+rescue
+    if ($@ ~= /^open/)
+        $stderr.puts "open failed : #{$!} \n #{$@} \n"
+        break
+    end
+    raise      # reraise unforseen exception
+end
+
+
+# @@PLEAC@@_16.13
+#% kill -l
+#HUP INT QUIT ILL TRAP ABRT BUS FPE KILL USR1 SEGV USR2 PIPE
+#ALRM TERM CHLD CONT STOP TSTP TTIN TTOU URG XCPU XFSZ VTALRM
+#PROF WINCH POLL PWR
+#-----------------------------
+#% ruby -e 'puts Signal.list.keys.join(" ")'
+#PWR USR1 BUS USR2 TERM SEGV KILL POLL STOP SYS TRAP IOT HUP INT                                                                          #
+#WINCH XCPU TTIN CLD TSTP FPE IO TTOU PROF CHLD CONT PIPE ABRT
+#VTALRM QUIT ILL XFSZ URG ALRM
+#-----------------------------
+# After that, the perl script create an hash equivalent to Signal.list, 
+# and an array. The array can be obtained by :
+signame = []
+Signal.list.each { |name, i| signame[i] = name }
+
+
+# @@PLEAC@@_16.14
+Process.kill(9, pid)                    # send $pid a signal 9
+Process.kill(-1, Process.getpgrp())     # send whole job a signal 1
+Process.kill("USR1", $$)                # send myself a SIGUSR1
+Process.kill("HUP", pid1, pid2, pid3)   # send a SIGHUP to processes in @pids
+#-----------------------------
+begin
+    Process.kill(0, minion)
+    puts "#{minion} is alive!"
+rescue Errno::EPERM                     # changed uid
+    puts "#{minion} has escaped my control!";
+rescue Errno::ESRCH
+    puts "#{minion} is deceased.";      # or zombied
+rescue
+    puts "Odd; I couldn't check the status of #{minion} : #{$!}"
+end
+
+
+# @@PLEAC@@_16.15
+Kernel.trap("QUIT", got_sig_quit)       # got_sig_quit = Proc.new { puts "Quit\n" }
+trap("PIPE", "got_sig_quit")            # def got_sig_pipe ...
+trap("INT") { ouch++ }                  # increment ouch for every SIGINT
+#-----------------------------
+trap("INT", "IGNORE")                   # ignore the signal INT
+#-----------------------------
+trap("STOP", "DEFAULT")                 # restore default STOP signal handling
+
+
+# @@PLEAC@@_16.16
+# the signal handler
+def ding
+    trap("INT", "ding")
+    puts "\aEnter your name!"
+end
+
+# prompt for name, overriding SIGINT
+def get_name
+    save = trap("INT", "ding")
+
+    puts "Kindly Stranger, please enter your name: "
+    name = gets().chomp()
+    trap("INT", save)
+    name
+end
+
+
+# @@PLEAC@@_16.21
+# implemented thanks to http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/1760
+require 'timeout'
+
+# we'll do something vastly more useful than cookbook to demonstrate timeouts
+begin
+    timeout(5) {
+        waitsec = rand(10)
+        puts "Let's see if a sleep of #{waitsec} seconds is longer than 5 seconds..."
+        system("sleep #{waitsec}")
+    }
+    puts "Timeout didn't occur"
+rescue Timeout::Error    
+    puts "Timed out!"
+end
+
+
+# @@PLEAC@@_17.1
+# A basic TCP client connection
+require 'socket'
+begin
+    t = TCPSocket.new('www.ruby-lang.org', 'www')
+rescue
+    puts "error: #{$!}"
+else
+    # ... do something with the socket
+    t.print "GET / HTTP/1.0\n\n"
+    answer = t.gets(nil)
+    # and terminate the connection when we're done
+    t.close
+end
+
+# Using the evil low level socket API
+require 'socket'
+# create a socket
+s = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)
+# build the address of the remote machine
+sockaddr_server = [Socket::AF_INET, 80,
+    Socket.gethostbyname('www.ruby-lang.org')[3],
+    0, 0].pack("snA4NN")
+# connect
+begin
+    s.connect(sockaddr_server)
+rescue
+    puts "error: #{$!}"
+else
+    # ... do something with the socket
+    s.print "GET / HTTP/1.0\n\n"
+    # and terminate the connection when we're done
+    s.close
+end
+
+# TCP connection with management of error (DNS)
+require 'socket'
+begin
+    client = TCPSocket.new('does not exists', 'www')
+rescue
+    puts "error: #{$!}"
+end
+
+# TCP connection with a time out
+require 'socket'
+require 'timeout'
+begin
+    timeout(1) do #the server has one second to answer
+        client = TCPSocket.new('www.host.com', 'www')
+    end
+rescue
+    puts "error: #{$!}"
+end
+
+
+# @@PLEAC@@_17.12
+require 'socket'
+
+class Preforker 
+    attr_reader (:child_count)
+    
+    def initialize(prefork, max_clients_per_child, port, client_handler)
+        @prefork = prefork
+        @max_clients_per_child = max_clients_per_child
+        @port = port
+        @child_count = 0
+        
+        @reaper = proc {
+            trap('CHLD', @reaper)
+            pid = Process.wait
+            @child_count -= 1
+        }
+        
+        @huntsman = proc {
+            trap('CHLD', 'IGNORE')
+            trap('INT', 'IGNORE')
+            Process.kill('INT', 0)
+            exit
+        }
+        
+        @client_handler=client_handler
+    end
+    
+    def child_handler
+        trap('INT', 'EXIT')
+        @client_handler.setUp
+        # wish: sigprocmask UNblock SIGINT
+        @max_clients_per_child.times {
+            client = @server.accept or break
+            @client_handler.handle_request(client)
+            client.close
+        }
+        @client_handler.tearDown
+    end
+    
+    def make_new_child
+        # wish: sigprocmask block SIGINT
+        @child_count += 1
+        pid = fork do
+            child_handler
+        end
+        # wish: sigprocmask UNblock SIGINT
+    end
+    
+    def run
+        @server = TCPserver.open(@port)
+        trap('CHLD', @reaper)
+        trap('INT', @huntsman)
+        loop {
+            (@prefork - @child_count).times { |i|
+                make_new_child
+            }
+            sleep .1
+        }
+    end
+end
+
+#-----------------------------
+#!/usr/bin/ruby
+
+require 'Preforker'
+
+class ClientHandler
+    def setUp
+    end
+    
+    def tearDown
+    end
+    
+    def handle_request(client)
+        # do stuff
+    end
+end
+
+server = Preforker.new(1, 100, 3102, ClientHandler.new)
+server.run
+
+
+# @@PLEAC@@_18.2
+require 'net/ftp'
+
+begin
+    ftp = Net::FTP::new("ftp.host.com")
+    ftp.login(username,password)
+    ftp.chdir(directory)
+    ftp.get(filename)
+    ftp.put(filename)
+rescue Net::FTPError
+    $stderr.print "FTP failed: " + $!
+ensure
+    ftp.close() if ftp
+end
+
+# A better solution for a local use could be :
+Net::FTP::new("ftp.host.com") do |ftp|
+    ftp.login(username,password)
+    ftp.chdir(directory)
+    ftp.get(filename)
+    ftp.put(filename)
+end
+
+# If you have only one file to get, there is a simple solution :
+require 'open-uri'
+open("ftp://www.ruby-lang.org/path/filename") do |fh|
+    # read from filehandle fh
+end 
+#--------------------------------------------
+# to wait a defined time for the connection, 
+# use the timeout module
+require 'timeout'
+begin 
+    timeout(30){
+        ftp = Net::FTP::new("ftp.host.com")
+        ftp.debug_mode = true
+    }
+rescue Net::FTPError
+    $stderr.puts "Couldn't connect."
+rescue Timeout::Error
+    $stderr.puts "Timeout while connecting to server."
+end
+
+begin
+    ftp.login()
+rescue Net::FTPError
+    $stderr.print "Couldn't authentificate.\n"
+end
+
+begin
+    ftp.login(username)
+rescue Net::FTPError
+    $stderr.print "Still couldn't authenticate.\n"
+end
+
+begin
+    ftp.login(username, password)
+rescue Net::FTPError
+    $stderr.print "Couldn't authenticate, even with explicit
+    username and password.\n"
+end
+
+begin
+    ftp.login(username, password, account)
+rescue Net::FTPError
+    $stderr.print "No dice. It hates me.\n"
+end
+#-----------------------------
+ftp.put(localfile, remotefile)
+#-----------------------------
+# Sending data from STDIN is not directly supported 
+# by the ftp library module. A possible way to do it is to use the 
+# storlines method directly to send raw commands to the ftp server.
+#-----------------------------
+ftp.get(remotefile, localfile)
+#-----------------------------
+ftp.get(remotefile) { |data| puts data }
+#-----------------------------
+ftp.chdir("/pub/ruby") 
+print "I'm in the directory ", ftp.pwd(), "\n"
+#-----------------------------
+ftp.mkdir("/pub/ruby/new_dir")
+#-----------------------------
+lines = ftp.ls("/pub/ruby/")
+# => ["drwxr-xr-x 2 matz users 4096 July 17 1998 1.0", ... ]
+
+latest = ftp.dir("/pub/ruby/*.tgz").sort.last
+
+ftp.nlst("/pub/ruby")
+# => ["/pub/ruby/1.0", ... ]
+#-----------------------------
+ftp.quit()
+
+
+# @@PLEAC@@_18.6
+require 'net/telnet'
+t = Net::Telnet::new( "Timeout" => 10,
+                      "Prompt"  => /%/,
+                      "Host"    => host )
+t.login(username, password)
+files = t.cmd("ls")
+t.print("top")
+process_string = t.waitfor(/\d+ processes/)
+t.close
+#-----------------------------
+/[$%#>] \z/n
+#-----------------------------
+# In case of an error, the telnet module throws an exception.
+# For control of the behavior in case of an error,
+# you just need to catch the exceptions and do your custom
+# error handling.
+#-----------------------------
+begin
+    telnet.login(username, password)
+rescue TimeoutError
+    fail "Login failed !\n"
+end
+#-----------------------------
+telnet.waitfor('/--more--/')
+#-----------------------------
+telnet.waitfor(String => 'greasy smoke', Timeout => 30)
+
+
+# @@PLEAC@@_18.7
+require 'ping'
+
+puts "#{host} is alive.\n" if Ping.pingecho(host);
+#-----------------------------
+# the ping module only use TCP ping, not ICMP even if we are root
+if Ping.pingecho("kingkong.com")
+    puts "The giant ape lives!\n";
+else
+    puts "All hail mighty Gamera, friend of children!\n";
+end
+
+
+# @@PLEAC@@_19.0
+#-----------------------------
+# http://www.perl.com/CPAN/
+# http://www.perl.com:8001/bad/mojo.html
+# ftp://gatekeeper.dec.com/pub/misc/netlib.tar.Z
+# ftp://anonymous@myplace:gatekeeper.dec.com/pub/misc/netlib.tar.Z
+# file:///etc/motd
+#-----------------------------
+# http://mox.perl.com/cgi-bin/program?name=Johann&born=1685
+#-----------------------------
+# http://mox.perl.com/cgi-bin/program
+#-----------------------------
+
+
+# @@PLEAC@@_19.1
+#!/usr/local/bin/ruby -w
+# hiweb - load CGI class to decode information given by web server
+
+require 'cgi'
+
+cgi = CGI.new('html3')
+
+# get a parameter from a form
+value = cgi.params['PARAM_NAME'][0]
+
+# output a document
+cgi.out {
+    cgi.html {
+        cgi.head { cgi.title { "Howdy there!" } } +
+            cgi.body { cgi.p { "You typed: " + cgi.tt {
+                    CGI.escapeHTML(value) } } }
+    }
+}
+
+require 'cgi'
+cgi = CGI.new
+who   = cgi.param["Name"][0]     # first param in list
+phone = cgi.param["Number"][0]
+picks = cgi.param["Choices"]     # complete list
+
+print cgi.header( 'type' => 'text/plain',
+                  'expires' => Time.now + (3 * 24 * 60 * 60) )
+
+
+# @@PLEAC@@_19.3
+#!/usr/local/bin/ruby -w
+# webwhoami - show web user's id
+require 'etc'
+print "Content-Type: text/plain\n\n"
+print "Running as " + Etc.getpwuid.name + "\n"
+
+# % ruby -wc cgi-script     # just check syntax
+
+# % ruby -w  cgi-script     # params from stdin
+# (offline mode: enter name=value pairs on standard input)
+# name=joe
+# number=10
+# ^D
+
+# % ruby -w  cgi-script name=joe number=10     # run with mock form input
+# % ruby -d  cgi-script name=joe number=10     # ditto, under the debugger
+
+# POST method script in csh
+# % (setenv HTTP_METHOD POST; ruby -w cgi-script name=joe number=10)
+# POST method script in sh
+# % HTTP_METHOD=POST perl -w cgi-script name=joe number=10
+
+
+# @@PLEAC@@_19.4
+# ruby has several security levels, the level "1" is similar to perls taint mode.
+# It can be switched on by providing the -T command line parameter
+# or by setting $SAFE to 1. Setting $SAFE to 2,3 or 4 restricts possible
+# harmful operations further.
+
+#!/usr/bin/ruby -T
+$SAFE = 1
+File.open(ARGV[0], "w")
+# ruby warns with:
+# taint1.rb:2:in `initialize': Insecure operation - initialize (SecurityError)
+
+$SAFE = 1
+file = ARGV[0]
+unless /^([\w.-]+)$/.match(file)
+    raise "filename #{file} has invalid characters"
+end
+file = $1
+# In ruby, even the back reference from a regular expression stays tainted.
+# you need to explicitly untaint the variable:
+file.untaint
+File.open(file, "w")
+
+# Race condition exists like in perl:
+unless File.exists(filename)        # Wrong because of race condition
+    File.open(filename, "w")
+end
+
+
+# @@PLEAC@@_19.8
+url = "http://pleac.sourceforge.net/pleac_ruby/"
+print "Location: #{url}\r\n\r\n"
+exit
+
+#!/usr/bin/ruby
+require 'cgi'
+
+cgi = CGI.new
+oreo = CGI::Cookie.new('name' => 'filling',
+                       'value' => 'vanilla creme',
+                       'expires' => Time.now + (3 * 30 * 24 * 60 * 60),
+                       'domain' => '.pleac.sourceforge.net')
+
+whither = 'http://pleac.sourceforge.net/pleac_ruby/cgiprogramming.html'
+
+cgi.out('cookie' => oreo,
+        'Location' => whither){""}
+
+#!/usr/bin/ruby
+# os_snipe - redirect to a Jargon File entry about current OS
+dir = 'http://www.elsewhere.org/jargon/html/entry'
+
+agent = ENV['HTTP_USER_AGENT']
+
+page = case
+    when agent =~ /Mac/: 'Macintrash.html'
+    when agent =~ /Win(dows )?NT/: 'evil_and_rude.html'
+    when agent =~ /Win|MSIE|WebTV/: 'Microsloth_Windows.html'
+    when agent =~ /Linux/: 'Linux.html'
+    when agent =~ /HP-UX/: 'HP-SUX.html'
+    when agent =~ /SunOS/: 'ScumOS.html'
+    else 'Appendix_B.html'
+end
+
+print "Location: #{dir}/#{page}\n\n"
+
+require 'cgi'
+cgi = CGI.new
+cgi.out('status' => '204 No response'){""}
+# this produces:
+# Status: 204 No response
+# Content-Type: text/html
+# Content-Length: 0
+# <blank line here>
+
+
+# @@PLEAC@@_19.10
+preference_value = cgi.cookies["preference name"][0]
+
+packed_cookie = CGI::Cookie.new("name" => "preference name",
+                                "value" => "whatever you'd like",
+                                "expires" => Time.local(Time.now.year + 2,
+    Time.now.mon, Time.now.day, Time.now.hour, Time.now.min, Time.now.sec) )
+
+cgi.header("cookie" => [packed_cookie])
+
+#!/usr/local/bin/ruby -w
+# ic_cookies - sample CGI script that uses a cookie
+require 'cgi'
+
+cgi = CGI.new('html3')
+
+cookname = "favorite ice cream"
+favorite = cgi.params["flavor"][0]
+tasty    = cgi.cookies[cookname][0] || 'mint'
+
+unless favorite
+    cgi.out {
+        cgi.html {
+            cgi.head { cgi.title { "Ice Cookies" } } +
+            cgi.body {
+                cgi.h1 { "Hello Ice Cream" } +
+                cgi.hr +
+                cgi.form {
+                    cgi.p { "Please select a flavor: " +
+                            cgi.text_field("flavor", tasty ) }
+                } +
+                cgi.hr
+            }
+        }
+    }
+else
+    cookie = CGI::Cookie.new( "name"    => cookname,
+                              "value"   => favorite,
+                              "expires" => Time.local(Time.now.year + 2,
+Time.now.mon, Time.now.day, Time.now.hour, Time.now.min, Time.now.sec) )
+    cgi.out("cookie" => [cookie]) {
+        cgi.html {
+            cgi.head { cgi.title { "Ice Cookies" } } +
+            cgi.body {
+                cgi.h1 { "Hello Ice Cream" } +
+                cgi.p { "You chose as your favorite flavor `#{favorite}'." }
+            }
+        }
+    }
+end
+
+
+# @@PLEAC@@_20.9
+def templatefile(filename, fillings)
+    aFile = File.new(filename, "r")
+    text = aFile.read()
+    aFile.close()
+    pattern = Regexp.new('%%(.*?)%%')
+    text.gsub!(pattern) {
+        fillings[$1] || ""
+    }
+    text
+end
+
+fields = {
+    'username' => whats_his_name,
+    'count' => login_count,
+    'total' => minutes_used
+}
+puts templatefile('simple.template', fields)
+
+# @@INCOMPLETE@@
+# An example using databases is missing
+
+
diff --git a/test/scanners/ruby/pleac.out.raydebug b/test/scanners/ruby/pleac.out.raydebug
new file mode 100644
index 0000000..c6fcd8c
--- /dev/null
+++ b/test/scanners/ruby/pleac.out.raydebug
@@ -0,0 +1,6368 @@
+comment(# -*- ruby -*-)
+
+comment(# Local variables:)
+comment(#  indent-tabs-mode: nil)
+comment(#  ruby-indent-level: 4)
+comment(# End:)
+
+comment(# @@PLEAC@@_NAME)
+comment(# @@SKIP@@ Ruby)
+
+comment(# @@PLEAC@@_WEB)
+comment(# @@SKIP@@ http://www.ruby-lang.org)
+
+
+comment(# @@PLEAC@@_1.0)
+ident(string) operator(=) string<delimiter(')content(\\n)delimiter(')>                     comment(# two characters, \\ and an n)
+ident(string) operator(=) string<delimiter(')content(Jon )char(\\')content(Maddog)char(\\')content( Orwant)delimiter(')>  comment(# literal single quotes)
+
+ident(string) operator(=) string<delimiter(")char(\\n)delimiter(")>                     comment(# a "newline" character)
+ident(string) operator(=) string<delimiter(")content(Jon )char(\\")content(Maddog)char(\\")content( Orwant)delimiter(")>  comment(# literal double quotes)
+
+ident(string) operator(=) string<delimiter(%q/)content(Jon 'Maddog' Orwant)delimiter(/)>  comment(# literal single quotes)
+
+ident(string) operator(=) string<delimiter(%q[)content(Jon 'Maddog' Orwant)delimiter(])>  comment(# literal single quotes)
+ident(string) operator(=) string<delimiter(%q{)content(Jon 'Maddog' Orwant)delimiter(})>  comment(# literal single quotes)
+ident(string) operator(=) string<delimiter(%q()content(Jon 'Maddog' Orwant)delimiter(\))>  comment(# literal single quotes)
+ident(string) operator(=) string<delimiter(%q<)content(Jon 'Maddog' Orwant)delimiter(>)>  comment(# literal single quotes)
+
+ident(a) operator(=) string<delimiter(<<"EOF")>string<content(
+This is a multiline here document
+terminated by EOF on a line by itself)delimiter(
+EOF)>
+
+
+comment(# @@PLEAC@@_1.1)
+ident(value) operator(=) ident(string)operator([)ident(offset)operator(,)ident(count)operator(])
+ident(value) operator(=) ident(string)operator([)ident(offset)operator(..)integer(-1)operator(])
+
+ident(string)operator([)ident(offset)operator(,)ident(count)operator(]) operator(=) ident(newstring)
+ident(string)operator([)ident(offset)operator(..)integer(-1)operator(])   operator(=) ident(newtail)
+
+comment(# in Ruby we can also specify intervals by their two offsets)
+ident(value) operator(=) ident(string)operator([)ident(offset)operator(..)ident(offs2)operator(])
+ident(string)operator([)ident(offset)operator(..)ident(offs2)operator(]) operator(=) ident(newstring)
+
+ident(leading)operator(,) ident(s1)operator(,) ident(s2)operator(,) ident(trailing) operator(=) ident(data)operator(.)ident(unpack)operator(()string<delimiter(")content(A5 x3 A8 A8 A*)delimiter(")>operator(\))
+
+ident(fivers) operator(=) ident(string)operator(.)ident(unpack)operator(()string<delimiter(")content(A5)delimiter(")> operator(*) operator(()ident(string)operator(.)ident(length)operator(/)integer(5)operator(\))operator(\))
+
+ident(chars) operator(=) ident(string)operator(.)ident(unpack)operator(()string<delimiter(")content(A1)delimiter(")> operator(*) ident(string)operator(.)ident(length)operator(\))
+
+ident(string) operator(=) string<delimiter(")content(This is what you have)delimiter(")>
+comment(#        +012345678901234567890  Indexing forwards  (left to right\))
+comment(#         109876543210987654321- Indexing backwards (right to left\))
+comment(#          note that 0 means 10 or 20, etc. above)
+
+ident(first)  operator(=) ident(string)operator([)integer(0)operator(,) integer(1)operator(])       comment(# "T")
+ident(start)  operator(=) ident(string)operator([)integer(5)operator(,) integer(2)operator(])       comment(# "is")
+ident(rest)   operator(=) ident(string)operator([)integer(13)operator(..)integer(-1)operator(])     comment(# "you have")
+ident(last)   operator(=) ident(string)operator([)integer(-1)operator(,) integer(1)operator(])      comment(# "e")
+ident(end_)   operator(=) ident(string)operator([)integer(-4)operator(..)integer(-1)operator(])     comment(# "have")
+ident(piece)  operator(=) ident(string)operator([)integer(-8)operator(,) integer(3)operator(])      comment(# "you")
+
+ident(string)operator([)integer(5)operator(,) integer(2)operator(]) operator(=) string<delimiter(")content(wasn't)delimiter(")>     comment(# change "is" to "wasn't")
+ident(string)operator([)integer(-12)operator(..)integer(-1)operator(]) operator(=) string<delimiter(")content(ondrous)delimiter(")> comment(# "This wasn't wondrous")
+ident(string)operator([)integer(0)operator(,) integer(1)operator(]) operator(=) string<delimiter(")delimiter(")>           comment(# delete first character)
+ident(string)operator([)integer(-10)operator(..)integer(-1)operator(])  operator(=) string<delimiter(")delimiter(")>       comment(# delete last 10 characters)
+
+reserved(if) ident(string)operator([)integer(-10)operator(..)integer(-1)operator(]) operator(=)operator(~) regexp<delimiter(/)content(pattern)delimiter(/)>
+    ident(puts) string<delimiter(")content(Pattern matches in last 10 characters)delimiter(")>
+reserved(end)
+
+ident(string)operator([)integer(0)operator(,) integer(5)operator(])operator(.)ident(gsub!)operator(()regexp<delimiter(/)content(is)delimiter(/)>operator(,) string<delimiter(')content(at)delimiter(')>operator(\))
+
+ident(a) operator(=) string<delimiter(")content(make a hat)delimiter(")>
+ident(a)operator([)integer(0)operator(,) integer(1)operator(])operator(,) ident(a)operator([)integer(-1)operator(,) integer(1)operator(]) operator(=) ident(a)operator([)integer(-1)operator(,) integer(1)operator(])operator(,) ident(a)operator([)integer(0)operator(,) integer(1)operator(])
+
+ident(a) operator(=) string<delimiter(")content(To be or not to be)delimiter(")>
+ident(b) operator(=) ident(a)operator(.)ident(unpack)operator(()string<delimiter(")content(x6 A6)delimiter(")>operator(\))
+
+ident(b)operator(,) ident(c) operator(=) ident(a)operator(.)ident(unpack)operator(()string<delimiter(")content(x6 A2 X5 A2)delimiter(")>operator(\))
+ident(puts) string<delimiter(")inline<delimiter(#{)ident(b)delimiter(})>char(\\n)inline<delimiter(#{)ident(c)delimiter(})>char(\\n)delimiter(")>
+
+reserved(def) method(cut2fmt)operator(()operator(*)ident(args)operator(\))
+    ident(template) operator(=) string<delimiter(')delimiter(')>
+    ident(lastpos)  operator(=) integer(1)
+    reserved(for) ident(place) reserved(in) ident(args)
+        ident(template) operator(+=) string<delimiter(")content(A)delimiter(")> operator(+) operator(()ident(place) operator(-) ident(lastpos)operator(\))operator(.)ident(to_s) operator(+) string<delimiter(")content( )delimiter(")>
+        ident(lastpos)   operator(=) ident(place)
+    reserved(end)
+    ident(template) operator(+=) string<delimiter(")content(A*)delimiter(")>
+    reserved(return) ident(template)
+reserved(end)
+
+ident(fmt) operator(=) ident(cut2fmt)operator(()integer(8)operator(,) integer(14)operator(,) integer(20)operator(,) integer(26)operator(,) integer(30)operator(\))
+
+
+comment(# @@PLEAC@@_1.2)
+comment(# careful! "b is true" doesn't mean "b != 0" (0 is true in Ruby\))
+comment(# thus no problem of "defined" later since only nil is false)
+comment(# the following sets to `c' if `b' is nil or false)
+ident(a) operator(=) ident(b) operator(||) ident(c)
+
+comment(# if you need Perl's behaviour (setting to `c' if `b' is 0\) the most)
+comment(# effective way is to use Numeric#nonzero? (thanks to Dave Thomas!\))
+ident(a) operator(=) ident(b)operator(.)ident(nonzero?) operator(||) ident(c)
+
+comment(# you will still want to use defined? in order to test)
+comment(# for scope existence of a given object)
+ident(a) operator(=) reserved(defined?)operator(()ident(b)operator(\)) operator(?) ident(b) operator(:) ident(c)
+
+ident(dir) operator(=) pre_constant(ARGV)operator(.)ident(shift) operator(||) string<delimiter(")content(/tmp)delimiter(")>
+
+
+comment(# @@PLEAC@@_1.3)
+ident(v1)operator(,) ident(v2) operator(=) ident(v2)operator(,) ident(v1)
+
+ident(alpha)operator(,) ident(beta)operator(,) ident(production) operator(=) string<delimiter(%w()content(January March August)delimiter(\))>
+ident(alpha)operator(,) ident(beta)operator(,) ident(production) operator(=) ident(beta)operator(,) ident(production)operator(,) ident(alpha)
+
+
+comment(# @@PLEAC@@_1.4)
+ident(num) operator(=) ident(char)operator([)integer(0)operator(])
+ident(char) operator(=) ident(num)operator(.)ident(chr)
+
+comment(# Ruby also supports having a char from character constant)
+ident(num) operator(=) integer(?r)
+
+ident(char) operator(=) ident(sprintf)operator(()string<delimiter(")content(%c)delimiter(")>operator(,) ident(num)operator(\))
+ident(printf)operator(()string<delimiter(")content(Number %d is character %c)char(\\n)delimiter(")>operator(,) ident(num)operator(,) ident(num)operator(\))
+
+ident(ascii) operator(=) ident(string)operator(.)ident(unpack)operator(()string<delimiter(")content(C*)delimiter(")>operator(\))
+ident(string) operator(=) ident(ascii)operator(.)ident(pack)operator(()string<delimiter(")content(C*)delimiter(")>operator(\))
+
+ident(hal) operator(=) string<delimiter(")content(HAL)delimiter(")>
+ident(ascii) operator(=) ident(hal)operator(.)ident(unpack)operator(()string<delimiter(")content(C*)delimiter(")>operator(\))
+comment(# We can't use Array#each since we can't mutate a Fixnum)
+ident(ascii)operator(.)ident(collect!) operator({) operator(|)ident(i)operator(|)
+    ident(i) operator(+) integer(1)                         comment(# add one to each ASCII value)
+operator(})                
+ident(ibm) operator(=) ident(ascii)operator(.)ident(pack)operator(()string<delimiter(")content(C*)delimiter(")>operator(\))
+ident(puts) ident(ibm)
+
+
+comment(# @@PLEAC@@_1.5)
+ident(array) operator(=) ident(string)operator(.)ident(split)operator(()string<delimiter(')delimiter(')>operator(\))
+
+ident(array) operator(=) ident(string)operator(.)ident(unpack)operator(()string<delimiter(")content(C*)delimiter(")>operator(\))
+
+ident(string)operator(.)ident(scan)operator(()regexp<delimiter(/)content(.)delimiter(/)>operator(\)) operator({) operator(|)ident(b)operator(|)
+    comment(# do something with b)
+operator(})
+
+ident(string) operator(=) string<delimiter(")content(an apple a day)delimiter(")>
+ident(print) string<delimiter(")content(unique chars are: )delimiter(")>operator(,) ident(string)operator(.)ident(split)operator(()string<delimiter(')delimiter(')>operator(\))operator(.)ident(uniq)operator(.)ident(sort)operator(,) string<delimiter(")char(\\n)delimiter(")>
+
+ident(sum) operator(=) integer(0)
+reserved(for) ident(ascval) reserved(in) ident(string)operator(.)ident(unpack)operator(()string<delimiter(")content(C*)delimiter(")>operator(\)) comment(# or use Array#each for a pure OO style :\))
+    ident(sum) operator(+=) ident(ascval)
+reserved(end)
+ident(puts) string<delimiter(")content(sum is )inline<delimiter(#{)ident(sum) operator(&) integer(0xffffffff)delimiter(})>delimiter(")> comment(# since Ruby will go Bignum if necessary)
+
+comment(# @@INCLUDE@@ include/ruby/slowcat.rb)
+
+
+comment(# @@PLEAC@@_1.6)
+ident(revbytes) operator(=) ident(string)operator(.)ident(reverse)
+
+ident(revwords) operator(=) ident(string)operator(.)ident(split)operator(()string<delimiter(")content( )delimiter(")>operator(\))operator(.)ident(reverse)operator(.)ident(join)operator(()string<delimiter(")content( )delimiter(")>operator(\))
+
+ident(revwords) operator(=) ident(string)operator(.)ident(split)operator(()regexp<delimiter(/)content(()char(\\s)content(+\))delimiter(/)>operator(\))operator(.)ident(reverse)operator(.)ident(join)
+
+comment(# using the fact that IO is Enumerable, you can directly "select" it)
+ident(long_palindromes) operator(=) constant(File)operator(.)ident(open)operator(()string<delimiter(")content(/usr/share/dict/words)delimiter(")>operator(\))operator(.)
+    ident(select) operator({) operator(|)ident(w)operator(|) ident(w)operator(.)ident(chomp!)operator(;) ident(w)operator(.)ident(reverse) operator(==) ident(w) operator(&&) ident(w)operator(.)ident(length) operator(>) integer(5) operator(})
+
+
+comment(# @@PLEAC@@_1.7)
+reserved(while) ident(string)operator(.)ident(sub!)operator(()string<delimiter(")char(\\t)content(+)delimiter(")>operator(\)) operator({) string<delimiter(')content( )delimiter(')> operator(*) operator(()global_variable($&)operator(.)ident(length) operator(*) integer(8) operator(-) global_variable($`)operator(.)ident(length) operator(%) integer(8)operator(\)) operator(})
+reserved(end)
+
+
+comment(# @@PLEAC@@_1.8)
+string<delimiter(')content(You owe #{debt} to me)delimiter(')>operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\#)content({()char(\\w)content(+\)})delimiter(/)>operator(\)) operator({) ident(eval)operator(()global_variable($1)operator(\)) operator(})
+
+ident(rows)operator(,) ident(cols) operator(=) integer(24)operator(,) integer(80)
+ident(text) operator(=) string<delimiter(%q()content(I am #{rows} high and #{cols} long)delimiter(\))>
+ident(text)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\#)content({()char(\\w)content(+\)})delimiter(/)>operator(\)) operator({) ident(eval)operator(()string<delimiter(")inline<delimiter(#{)global_variable($1)delimiter(})>delimiter(")>operator(\)) operator(})
+ident(puts) ident(text)
+
+string<delimiter(')content(I am 17 years old)delimiter(')>operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\d)content(+)delimiter(/)>operator(\)) operator({) integer(2) operator(*) global_variable($&)operator(.)ident(to_i) operator(})
+
+
+comment(# @@PLEAC@@_1.9)
+ident(e) operator(=) string<delimiter(")content(bo peep)delimiter(")>operator(.)ident(upcase)
+ident(e)operator(.)ident(downcase!)
+ident(e)operator(.)ident(capitalize!)
+
+string<delimiter(")content(thIS is a loNG liNE)delimiter(")>operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\w)content(+)delimiter(/)>operator(\)) operator({) global_variable($&)operator(.)ident(capitalize) operator(})
+
+
+comment(# @@PLEAC@@_1.10)
+string<delimiter(")content(I have )inline<delimiter(#{)ident(n)integer(+1)delimiter(})>content( guanacos.)delimiter(")>
+ident(print) string<delimiter(")content(I have )delimiter(")>operator(,) ident(n)integer(+1)operator(,) string<delimiter(")content( guanacos.)delimiter(")>
+
+
+comment(# @@PLEAC@@_1.11)
+ident(var) operator(=) string<delimiter(<<'EOF')>operator(.)ident(gsub)operator(()regexp<delimiter(/)content(^)char(\\s)content(+)delimiter(/)>operator(,) string<delimiter(')delimiter(')>operator(\))string<content(
+    your text
+    goes here)delimiter(
+EOF)>
+
+
+comment(# @@PLEAC@@_1.12)
+ident(string) operator(=) string<delimiter(")content(Folding and splicing is the work of an editor,)char(\\n)delimiter(")>operator(+)
+    string<delimiter(")content(not a mere collection of silicon)char(\\n)delimiter(")>operator(+) 
+    string<delimiter(")content(and)char(\\n)delimiter(")>operator(+)
+    string<delimiter(")content(mobile electrons!)delimiter(")>
+
+reserved(def) method(wrap)operator(()ident(str)operator(,) ident(max_size)operator(\))
+    ident(all) operator(=) operator([)operator(])
+    ident(line) operator(=) string<delimiter(')delimiter(')>
+    reserved(for) ident(l) reserved(in) ident(str)operator(.)ident(split)
+        reserved(if) operator(()ident(line)operator(+)ident(l)operator(\))operator(.)ident(length) operator(>)operator(=) ident(max_size)
+            ident(all)operator(.)ident(push)operator(()ident(line)operator(\))
+            ident(line) operator(=) string<delimiter(')delimiter(')>
+        reserved(end)
+        ident(line) operator(+=) ident(line) operator(==) string<delimiter(')delimiter(')> operator(?) ident(l) operator(:) string<delimiter(')content( )delimiter(')> operator(+) ident(l)
+    reserved(end)
+    ident(all)operator(.)ident(push)operator(()ident(line)operator(\))operator(.)ident(join)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))
+reserved(end)
+
+ident(print) ident(wrap)operator(()ident(string)operator(,) integer(20)operator(\))
+comment(#=> Folding and )
+comment(#=> splicing is the )
+comment(#=> work of an editor, )
+comment(#=> not a mere )
+comment(#=> collection of )
+comment(#=> silicon and mobile )
+comment(#=> electrons!)
+
+
+comment(# @@PLEAC@@_1.13)
+ident(string) operator(=) string<delimiter(%q()content(Mom said, "Don't do that.")delimiter(\))>
+ident(string)operator(.)ident(gsub)operator(()regexp<delimiter(/)content(['"])delimiter(/)>operator(\)) operator({) string<delimiter(')char(\\\\)delimiter(')>operator(+)global_variable($&) operator(})
+ident(string)operator(.)ident(gsub)operator(()regexp<delimiter(/)content(['"])delimiter(/)>operator(,) string<delimiter(')content(\\&)content(\\&)delimiter(')>operator(\))
+ident(string)operator(.)ident(gsub)operator(()regexp<delimiter(/)content([^A-Z])delimiter(/)>operator(\)) operator({) string<delimiter(')char(\\\\)delimiter(')>operator(+)global_variable($&) operator(})
+string<delimiter(")content(is a test!)delimiter(")>operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\W)delimiter(/)>operator(\)) operator({) string<delimiter(')char(\\\\)delimiter(')>operator(+)global_variable($&) operator(})  comment(# no function like quotemeta?)
+
+
+comment(# @@PLEAC@@_1.14)
+ident(string)operator(.)ident(strip!)
+
+
+comment(# @@PLEAC@@_1.15)
+reserved(def) method(parse_csv)operator(()ident(text)operator(\))
+    ident(new) operator(=) ident(text)operator(.)ident(scan)operator(()regexp<delimiter(/)content("([^)char(\\")char(\\\\)content(]*(?:)char(\\\\)content(.[^)char(\\")char(\\\\)content(]*\)*\)",?|([^,]+\),?|,)delimiter(/)>operator(\))
+    ident(new) operator(<<) pre_constant(nil) reserved(if) ident(text)operator([)integer(-1)operator(]) operator(==) integer(?,)
+    ident(new)operator(.)ident(flatten)operator(.)ident(compact)
+reserved(end)  
+
+ident(line) operator(=) string<delimiter(%q<)content(XYZZY,"","O'Reilly, Inc","Wall, Larry","a )content(\\")content(glug)content(\\")content( bit,",5,"Error, Core Dumped")delimiter(>)>
+ident(fields) operator(=) ident(parse_csv)operator(()ident(line)operator(\))
+ident(fields)operator(.)ident(each_with_index) operator({) operator(|)ident(v)operator(,)ident(i)operator(|)
+    ident(print) string<delimiter(")inline<delimiter(#{)ident(i)delimiter(})>content( : )inline<delimiter(#{)ident(v)delimiter(})>char(\\n)delimiter(")>operator(;)
+operator(})
+
+
+comment(# @@PLEAC@@_1.16)
+comment(# Use the soundex.rb Library from Michael Neumann.)
+comment(# http://www.s-direktnet.de/homepages/neumann/rb_prgs/Soundex.rb)
+ident(require) string<delimiter(')content(Soundex)delimiter(')>
+
+ident(code) operator(=) constant(Text)operator(::)constant(Soundex)operator(.)ident(soundex)operator(()ident(string)operator(\))
+ident(codes) operator(=) constant(Text)operator(::)constant(Soundex)operator(.)ident(soundex)operator(()ident(array)operator(\))
+
+comment(# substitution function for getpwent(\):)
+comment(# returns an array of user entries,)
+comment(# each entry contains the username and the full name)
+reserved(def) method(login_names)
+    ident(result) operator(=) operator([)operator(])
+    constant(File)operator(.)ident(open)operator(()string<delimiter(")content(/etc/passwd)delimiter(")>operator(\)) operator({) operator(|)ident(file)operator(|)
+        ident(file)operator(.)ident(each_line) operator({) operator(|)ident(line)operator(|)
+            reserved(next) reserved(if) ident(line)operator(.)ident(match)operator(()regexp<delimiter(/)content(^#)delimiter(/)>operator(\))
+            ident(cols) operator(=) ident(line)operator(.)ident(split)operator(()string<delimiter(")content(:)delimiter(")>operator(\))
+            ident(result)operator(.)ident(push)operator(()operator([)ident(cols)operator([)integer(0)operator(])operator(,) ident(cols)operator([)integer(4)operator(])operator(])operator(\))
+        operator(})
+    operator(})
+    ident(result)
+reserved(end)
+
+ident(puts) string<delimiter(")content(Lookup user: )delimiter(")>
+ident(user) operator(=) constant(STDIN)operator(.)ident(gets)
+ident(user)operator(.)ident(chomp!)
+ident(exit) reserved(unless) ident(user)
+ident(name_code) operator(=) constant(Text)operator(::)constant(Soundex)operator(.)ident(soundex)operator(()ident(user)operator(\))
+
+ident(splitter) operator(=) constant(Regexp)operator(.)ident(new)operator(()string<delimiter(')content(()content(\\w)content(+\)[^,]*)content(\\b)content(()content(\\w)content(+\))delimiter(')>operator(\))
+reserved(for) ident(username)operator(,) ident(fullname) reserved(in) ident(login_names) reserved(do)
+    ident(firstname)operator(,) ident(lastname) operator(=) ident(splitter)operator(.)ident(match)operator(()ident(fullname)operator(\))operator([)integer(1)operator(,)integer(2)operator(])
+    reserved(if) ident(name_code) operator(==) constant(Text)operator(::)constant(Soundex)operator(.)ident(soundex)operator(()ident(username)operator(\))
+        operator(||) ident(name_code) operator(==) constant(Text)operator(::)constant(Soundex)operator(.)ident(soundex)operator(()ident(firstname)operator(\))
+        operator(||) ident(name_code) operator(==) constant(Text)operator(::)constant(Soundex)operator(.)ident(soundex)operator(()ident(lastname)operator(\))
+    reserved(then)
+        ident(puts) string<delimiter(")inline<delimiter(#{)ident(username)delimiter(})>content(: )inline<delimiter(#{)ident(firstname)delimiter(})>content( )inline<delimiter(#{)ident(lastname)delimiter(})>delimiter(")>
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_1.17)
+comment(# @@INCLUDE@@ include/ruby/fixstyle.rb)
+
+
+comment(# @@PLEAC@@_1.18)
+comment(# @@INCLUDE@@ include/ruby/psgrep.rb)
+
+
+comment(# @@PLEAC@@_2.1)
+comment(# Matz tells that you can use Integer(\) for strict checked conversion.)
+ident(Integer)operator(()string<delimiter(")content(abc)delimiter(")>operator(\))
+comment(#=> `Integer': invalid value for Integer: "abc" (ArgumentError\))
+ident(Integer)operator(()string<delimiter(")content(567)delimiter(")>operator(\))
+comment(#=> 567)
+
+comment(# You may use Float(\) for floating point stuff)
+ident(Integer)operator(()string<delimiter(")content(56.7)delimiter(")>operator(\))
+comment(#=> `Integer': invalid value for Integer: "56.7" (ArgumentError\))
+ident(Float)operator(()string<delimiter(")content(56.7)delimiter(")>operator(\))
+comment(#=> 56.7)
+
+comment(# You may also use a regexp for that)
+reserved(if) ident(string) operator(=)operator(~) regexp<delimiter(/)content(^[+-]?)char(\\d)content(+$)delimiter(/)>
+    ident(p) string<delimiter(')content(is an integer)delimiter(')>
+reserved(else)
+    ident(p) string<delimiter(')content(is not)delimiter(')>
+reserved(end)
+
+reserved(if) ident(string) operator(=)operator(~) regexp<delimiter(/)content(^-?(?:)char(\\d)content(+(?:)char(\\.)char(\\d)content(*\)?|)char(\\.)char(\\d)content(+\)$)delimiter(/)>
+    ident(p) string<delimiter(')content(is a decimal number)delimiter(')>
+reserved(else)
+    ident(p) string<delimiter(')content(is not)delimiter(')>
+reserved(end)
+
+
+comment(# @@PLEAC@@_2.2)
+comment(# equal(num1, num2, accuracy\) : returns true if num1 and num2 are)
+comment(#   equal to accuracy number of decimal places)
+reserved(def) method(equal)operator(()ident(i)operator(,) ident(j)operator(,) ident(a)operator(\))
+    ident(sprintf)operator(()string<delimiter(")content(%.)inline<delimiter(#{)ident(a)delimiter(})>content(g)delimiter(")>operator(,) ident(i)operator(\)) operator(==) ident(sprintf)operator(()string<delimiter(")content(%.)inline<delimiter(#{)ident(a)delimiter(})>content(g)delimiter(")>operator(,) ident(j)operator(\))
+reserved(end)
+
+ident(wage) operator(=) integer(536)                        comment(# $5.36/hour)
+ident(week) operator(=) integer(40) operator(*) ident(wage)                  comment(# $214.40)
+ident(printf)operator(()string<delimiter(")content(One week's wage is: )char(\\$)content(%.2f)char(\\n)delimiter(")>operator(,) ident(week)operator(/)float(100.0)operator(\))
+
+
+comment(# @@PLEAC@@_2.3)
+ident(num)operator(.)ident(round)                         comment(# rounds to integer)
+
+ident(a) operator(=) float(0.255)
+ident(b) operator(=) ident(sprintf)operator(()string<delimiter(")content(%.2f)delimiter(")>operator(,) ident(a)operator(\))
+ident(print)  string<delimiter(")content(Unrounded: )inline<delimiter(#{)ident(a)delimiter(})>char(\\n)content(Rounded: )inline<delimiter(#{)ident(b)delimiter(})>char(\\n)delimiter(")>
+ident(printf) string<delimiter(")content(Unrounded: )inline<delimiter(#{)ident(a)delimiter(})>char(\\n)content(Rounded: %.2f)char(\\n)delimiter(")>operator(,) ident(a)
+
+ident(print) string<delimiter(")content(number)char(\\t)content(int)char(\\t)content(floor)char(\\t)content(ceil)char(\\n)delimiter(")>
+ident(a) operator(=) operator([) float(3.3) operator(,) float(3.5) operator(,) float(3.7)operator(,) float(-3.3) operator(])
+reserved(for) ident(n) reserved(in) ident(a)
+    ident(printf)operator(()string<delimiter(")content(% .1f)char(\\t)content(% .1f)char(\\t)content(% .1f)char(\\t)content(% .1f)char(\\n)delimiter(")>operator(,)  comment(# at least I don't fake my output :\))
+           ident(n)operator(,) ident(n)operator(.)ident(to_i)operator(,) ident(n)operator(.)ident(floor)operator(,) ident(n)operator(.)ident(ceil)operator(\))
+reserved(end)
+
+
+comment(# @@PLEAC@@_2.4)
+reserved(def) method(dec2bin)operator(()ident(n)operator(\))
+    operator([)ident(n)operator(])operator(.)ident(pack)operator(()string<delimiter(")content(N)delimiter(")>operator(\))operator(.)ident(unpack)operator(()string<delimiter(")content(B32)delimiter(")>operator(\))operator([)integer(0)operator(])operator(.)ident(sub)operator(()regexp<delimiter(/)content(^0+(?=)char(\\d)content(\))delimiter(/)>operator(,) string<delimiter(')delimiter(')>operator(\))
+reserved(end)
+
+reserved(def) method(bin2dec)operator(()ident(n)operator(\))
+    operator([)operator(()string<delimiter(")content(0)delimiter(")>operator(*)integer(32)operator(+)ident(n)operator(.)ident(to_s)operator(\))operator([)integer(-32)operator(..)integer(-1)operator(])operator(])operator(.)ident(pack)operator(()string<delimiter(")content(B32)delimiter(")>operator(\))operator(.)ident(unpack)operator(()string<delimiter(")content(N)delimiter(")>operator(\))operator([)integer(0)operator(])
+reserved(end)
+
+
+comment(# @@PLEAC@@_2.5)
+reserved(for) ident(i) reserved(in) ident(x) operator(..) ident(y)
+    comment(# i is set to every integer from x to y, inclusive)
+reserved(end)
+
+ident(x)operator(.)ident(step)operator(()ident(y)operator(,)integer(7)operator(\)) operator({) operator(|)ident(i)operator(|)
+    comment(# i is set to every integer from x to y, stepsize = 7)
+operator(})
+
+ident(print) string<delimiter(")content(Infancy is: )delimiter(")>
+operator(()integer(0)operator(..)integer(2)operator(\))operator(.)ident(each) operator({) operator(|)ident(i)operator(|)
+    ident(print) ident(i)operator(,) string<delimiter(")content( )delimiter(")>
+operator(})
+ident(print) string<delimiter(")char(\\n)delimiter(")>
+
+
+comment(# @@PLEAC@@_2.6)
+comment(# We can add conversion methods to the Integer class,)
+comment(# this makes a roman number just a representation for normal numbers.)
+reserved(class) class(Integer)
+    
+    class_variable(@@romanlist) operator(=) operator([)operator([)string<delimiter(")content(M)delimiter(")>operator(,) integer(1000)operator(])operator(,)
+                   operator([)string<delimiter(")content(CM)delimiter(")>operator(,) integer(900)operator(])operator(,)
+                   operator([)string<delimiter(")content(D)delimiter(")>operator(,)  integer(500)operator(])operator(,)
+                   operator([)string<delimiter(")content(CD)delimiter(")>operator(,) integer(400)operator(])operator(,)
+                   operator([)string<delimiter(")content(C)delimiter(")>operator(,)  integer(100)operator(])operator(,)
+                   operator([)string<delimiter(")content(XC)delimiter(")>operator(,)  integer(90)operator(])operator(,)
+                   operator([)string<delimiter(")content(L)delimiter(")>operator(,)   integer(50)operator(])operator(,)
+                   operator([)string<delimiter(")content(XL)delimiter(")>operator(,)  integer(40)operator(])operator(,)
+                   operator([)string<delimiter(")content(X)delimiter(")>operator(,)   integer(10)operator(])operator(,)
+                   operator([)string<delimiter(")content(IX)delimiter(")>operator(,)   integer(9)operator(])operator(,)
+                   operator([)string<delimiter(")content(V)delimiter(")>operator(,)    integer(5)operator(])operator(,)
+                   operator([)string<delimiter(")content(IV)delimiter(")>operator(,)   integer(4)operator(])operator(,)
+                   operator([)string<delimiter(")content(I)delimiter(")>operator(,)    integer(1)operator(])operator(])
+    
+    reserved(def) method(to_roman)
+        ident(remains) operator(=) pre_constant(self)
+        ident(roman) operator(=) string<delimiter(")delimiter(")>
+        reserved(for) ident(sym)operator(,) ident(num) reserved(in) class_variable(@@romanlist)
+            reserved(while) ident(remains) operator(>)operator(=) ident(num)
+                ident(remains) operator(-=) ident(num)
+                ident(roman) operator(<<) ident(sym)
+            reserved(end)
+        reserved(end)
+        ident(roman)
+    reserved(end)
+    
+    reserved(def) constant(Integer)operator(.)ident(from_roman)operator(()ident(roman)operator(\))
+        ident(ustr) operator(=) ident(roman)operator(.)ident(upcase)
+        ident(sum) operator(=) integer(0)
+        reserved(for) ident(entry) reserved(in) class_variable(@@romanlist)
+            ident(sym)operator(,) ident(num) operator(=) ident(entry)operator([)integer(0)operator(])operator(,) ident(entry)operator([)integer(1)operator(])
+            reserved(while) ident(sym) operator(==) ident(ustr)operator([)integer(0)operator(,) ident(sym)operator(.)ident(length)operator(])
+                ident(sum) operator(+=) ident(num)
+                ident(ustr)operator(.)ident(slice!)operator(()integer(0)operator(,) ident(sym)operator(.)ident(length)operator(\))
+            reserved(end)
+        reserved(end)
+        ident(sum)
+    reserved(end)
+    
+reserved(end)
+
+
+ident(roman_fifteen) operator(=) integer(15)operator(.)ident(to_roman)
+ident(puts) string<delimiter(")content(Roman for fifteen is )inline<delimiter(#{)ident(roman_fifteen)delimiter(})>delimiter(")>
+ident(i) operator(=) constant(Integer)operator(.)ident(from_roman)operator(()ident(roman_fifteen)operator(\))
+ident(puts) string<delimiter(")content(Converted back, )inline<delimiter(#{)ident(roman_fifteen)delimiter(})>content( is )inline<delimiter(#{)ident(i)delimiter(})>delimiter(")>
+
+comment(# check)
+reserved(for) ident(i) reserved(in) operator(()integer(1)operator(..)integer(3900)operator(\))
+    ident(r) operator(=) ident(i)operator(.)ident(to_roman)
+    ident(j) operator(=) constant(Integer)operator(.)ident(from_roman)operator(()ident(r)operator(\))
+    reserved(if) ident(i) operator(!=) ident(j)
+        ident(puts) string<delimiter(")content(error: )inline<delimiter(#{)ident(i)delimiter(})>content( : )inline<delimiter(#{)ident(r)delimiter(})>content( - )inline<delimiter(#{)ident(j)delimiter(})>delimiter(")>
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_2.7)
+ident(random) operator(=) ident(rand)operator(()ident(y)operator(-)ident(x)integer(+1)operator(\))operator(+)ident(x)
+
+ident(chars) operator(=) operator([)string<delimiter(")content(A)delimiter(")>operator(..)string<delimiter(")content(Z)delimiter(")>operator(,)string<delimiter(")content(a)delimiter(")>operator(..)string<delimiter(")content(z)delimiter(")>operator(,)string<delimiter(")content(0)delimiter(")>operator(..)string<delimiter(")content(9)delimiter(")>operator(])operator(.)ident(collect) operator({) operator(|)ident(r)operator(|) ident(r)operator(.)ident(to_a) operator(})operator(.)ident(join) operator(+) string<delimiter(%q()content(!@$%^&*)delimiter(\))>
+ident(password) operator(=) operator(()integer(1)operator(..)integer(8)operator(\))operator(.)ident(collect) operator({) ident(chars)operator([)ident(rand)operator(()ident(chars)operator(.)ident(size)operator(\))operator(]) operator(})operator(.)ident(pack)operator(()string<delimiter(")content(C*)delimiter(")>operator(\))
+
+
+comment(# @@PLEAC@@_2.8)
+ident(srand)        comment(# uses a combination of the time, the process id, and a sequence number)
+ident(srand)operator(()ident(val)operator(\))   comment(# for repeatable behaviour)
+
+
+comment(# @@PLEAC@@_2.9)
+comment(# from the randomr lib: )
+comment(# http://raa.ruby-lang.org/project/randomr/)
+operator(-)operator(-)operator(-)operator(-)operator(>) ident(http)symbol(:/)operator(/)ident(raa)operator(.)ident(ruby)operator(-)ident(lang)operator(.)ident(org)operator(/)ident(project)operator(/)ident(randomr)operator(/)
+
+ident(require) string<delimiter(')content(random/mersenne_twister)delimiter(')>
+ident(mers) operator(=) constant(Random)operator(::)constant(MersenneTwister)operator(.)ident(new) integer(123456789)
+ident(puts) ident(mers)operator(.)ident(rand)operator(()integer(0)operator(\))    comment(# 0.550321932544541)
+ident(puts) ident(mers)operator(.)ident(rand)operator(()integer(10)operator(\))   comment(# 2)
+
+comment(# using online sources of random data via the realrand package:)
+comment(# http://raa.ruby-lang.org/project/realrand/)
+comment(# **Note**)
+comment(# The following online services are used in this package:)
+comment(#   http://www.random.org - source: atmospheric noise )
+comment(#   http://www.fourmilab.ch/hotbits - source: radioactive decay timings)
+comment(#   http://random.hd.org - source: entropy from local and network noise)
+comment(# Please visit the sites and respect the rules of each service.)
+
+ident(require) string<delimiter(')content(random/online)delimiter(')>
+
+ident(generator1) operator(=) constant(Random)operator(::)constant(RandomOrg)operator(.)ident(new)
+ident(puts) ident(generator1)operator(.)ident(randbyte)operator(()integer(5)operator(\))operator(.)ident(join)operator(()string<delimiter(")content(,)delimiter(")>operator(\))
+ident(puts) ident(generator1)operator(.)ident(randnum)operator(()integer(10)operator(,) integer(1)operator(,) integer(6)operator(\))operator(.)ident(join)operator(()string<delimiter(")content(,)delimiter(")>operator(\))  comment(# Roll dice 10 times.)
+
+ident(generator2) operator(=) constant(Random)operator(::)constant(FourmiLab)operator(.)ident(new)
+ident(puts) ident(generator2)operator(.)ident(randbyte)operator(()integer(5)operator(\))operator(.)ident(join)operator(()string<delimiter(")content(,)delimiter(")>operator(\))
+comment(# randnum is not supported.)
+
+ident(generator3) operator(=) constant(Random)operator(::)constant(EntropyPool)operator(.)ident(new)
+ident(puts) ident(generator3)operator(.)ident(randbyte)operator(()integer(5)operator(\))operator(.)ident(join)operator(()string<delimiter(")content(,)delimiter(")>operator(\))
+comment(# randnum is not supported.)
+
+
+comment(# @@PLEAC@@_2.10)
+reserved(def) method(gaussian_rand)
+    reserved(begin)
+        ident(u1) operator(=) integer(2) operator(*) ident(rand)operator(()operator(\)) operator(-) integer(1)
+        ident(u2) operator(=) integer(2) operator(*) ident(rand)operator(()operator(\)) operator(-) integer(1)
+        ident(w) operator(=) ident(u1)operator(*)ident(u1) operator(+) ident(u2)operator(*)ident(u2)
+    reserved(end) reserved(while) operator(()ident(w) operator(>)operator(=) integer(1)operator(\))
+    ident(w) operator(=) constant(Math)operator(.)ident(sqrt)operator(()operator(()integer(-2)operator(*)constant(Math)operator(.)ident(log)operator(()ident(w)operator(\))operator(\))operator(/)ident(w)operator(\))
+    operator([) ident(u2)operator(*)ident(w)operator(,) ident(u1)operator(*)ident(w) operator(])
+reserved(end)
+
+ident(mean) operator(=) integer(25)
+ident(sdev) operator(=) integer(2)
+ident(salary) operator(=) ident(gaussian_rand)operator([)integer(0)operator(]) operator(*) ident(sdev) operator(+) ident(mean)
+ident(printf)operator(()string<delimiter(")content(You have been hired at )char(\\$)content(%.2f)char(\\n)delimiter(")>operator(,) ident(salary)operator(\))
+
+
+comment(# @@PLEAC@@_2.11)
+reserved(def) method(deg2rad)operator(()ident(d)operator(\))
+    operator(()ident(d)operator(/)float(180.0)operator(\))operator(*)constant(Math)operator(::)constant(PI)
+reserved(end)
+
+reserved(def) method(rad2deg)operator(()ident(r)operator(\))
+    operator(()ident(r)operator(/)constant(Math)operator(::)constant(PI)operator(\))operator(*)integer(180)
+reserved(end)
+
+
+comment(# @@PLEAC@@_2.12)
+ident(sin_val) operator(=) constant(Math)operator(.)ident(sin)operator(()ident(angle)operator(\))
+ident(cos_val) operator(=) constant(Math)operator(.)ident(cos)operator(()ident(angle)operator(\))
+ident(tan_val) operator(=) constant(Math)operator(.)ident(tan)operator(()ident(angle)operator(\))
+
+comment(# AFAIK Ruby's Math module doesn't provide acos/asin)
+comment(# While we're at it, let's also define missing hyperbolic functions)
+reserved(module) class(Math)
+    reserved(def) constant(Math)operator(.)ident(asin)operator(()ident(x)operator(\))
+        ident(atan2)operator(()ident(x)operator(,) ident(sqrt)operator(()integer(1) operator(-) ident(x)operator(**)integer(2)operator(\))operator(\))
+    reserved(end)
+    reserved(def) constant(Math)operator(.)ident(acos)operator(()ident(x)operator(\))
+        ident(atan2)operator(()ident(sqrt)operator(()integer(1) operator(-) ident(x)operator(**)integer(2)operator(\))operator(,) ident(x)operator(\))
+    reserved(end)
+    reserved(def) constant(Math)operator(.)ident(atan)operator(()ident(x)operator(\))
+        ident(atan2)operator(()ident(x)operator(,) integer(1)operator(\))
+    reserved(end)
+    reserved(def) constant(Math)operator(.)ident(sinh)operator(()ident(x)operator(\))
+        operator(()ident(exp)operator(()ident(x)operator(\)) operator(-) ident(exp)operator(()operator(-)ident(x)operator(\))operator(\)) operator(/) integer(2)
+    reserved(end)
+    reserved(def) constant(Math)operator(.)ident(cosh)operator(()ident(x)operator(\))
+        operator(()ident(exp)operator(()ident(x)operator(\)) operator(+) ident(exp)operator(()operator(-)ident(x)operator(\))operator(\)) operator(/) integer(2)
+    reserved(end)
+    reserved(def) constant(Math)operator(.)ident(tanh)operator(()ident(x)operator(\))
+        ident(sinh)operator(()ident(x)operator(\)) operator(/) ident(cosh)operator(()ident(x)operator(\))
+    reserved(end)
+reserved(end)
+
+comment(# The support for Complex numbers is not built-in)
+ident(y) operator(=) constant(Math)operator(.)ident(acos)operator(()float(3.7)operator(\))
+comment(#=> in `sqrt': square root for negative number (ArgumentError\))
+
+comment(# There is an implementation of Complex numbers in 'complex.rb' in current)
+comment(# Ruby distro, but it doesn't support atan2 with complex args, so it doesn't)
+comment(# solve this problem.)
+
+
+comment(# @@PLEAC@@_2.13)
+ident(log_e) operator(=) constant(Math)operator(.)ident(log)operator(()ident(val)operator(\))
+ident(log_10) operator(=) constant(Math)operator(.)ident(log10)operator(()ident(val)operator(\))
+
+reserved(def) method(log_base)operator(()ident(base)operator(,) ident(val)operator(\))
+    constant(Math)operator(.)ident(log)operator(()ident(val)operator(\))operator(/)constant(Math)operator(.)ident(log)operator(()ident(base)operator(\))
+reserved(end)
+
+ident(answer) operator(=) ident(log_base)operator(()integer(10)operator(,) integer(10_000)operator(\))
+ident(puts) string<delimiter(")content(log10(10,000\) = )inline<delimiter(#{)ident(answer)delimiter(})>delimiter(")>
+
+
+comment(# @@PLEAC@@_2.14)
+ident(require) string<delimiter(')content(matrix.rb)delimiter(')>
+
+ident(a) operator(=) constant(Matrix)operator([)operator([)integer(3)operator(,) integer(2)operator(,) integer(3)operator(])operator(,) operator([)integer(5)operator(,) integer(9)operator(,) integer(8)operator(])operator(])
+ident(b) operator(=) constant(Matrix)operator([)operator([)integer(4)operator(,) integer(7)operator(])operator(,) operator([)integer(9)operator(,) integer(3)operator(])operator(,) operator([)integer(8)operator(,) integer(1)operator(])operator(])
+ident(c) operator(=) ident(a) operator(*) ident(b)
+
+ident(a)operator(.)ident(row_size)
+ident(a)operator(.)ident(column_size)
+
+ident(c)operator(.)ident(det)
+ident(a)operator(.)ident(transpose)
+
+
+comment(# @@PLEAC@@_2.15)
+ident(require) string<delimiter(')content(complex.rb)delimiter(')>
+ident(require) string<delimiter(')content(rational.rb)delimiter(')>
+
+ident(a) operator(=) ident(Complex)operator(()integer(3)operator(,) integer(5)operator(\))              comment(# 3 + 5i)
+ident(b) operator(=) ident(Complex)operator(()integer(2)operator(,) integer(-2)operator(\))             comment(# 2 - 2i)
+ident(puts) string<delimiter(")content(c = )inline<delimiter(#{)ident(a)operator(*)ident(b)delimiter(})>delimiter(")>
+
+ident(c) operator(=) ident(a) operator(*) ident(b)
+ident(d) operator(=) integer(3) operator(+) integer(4)operator(*)constant(Complex)operator(::)constant(I)
+
+ident(printf) string<delimiter(")content(sqrt()inline<delimiter(#{)ident(d)delimiter(})>content(\) = %s)char(\\n)delimiter(")>operator(,) constant(Math)operator(.)ident(sqrt)operator(()ident(d)operator(\))
+
+
+comment(# @@PLEAC@@_2.16)
+ident(number) operator(=) ident(hexadecimal)operator(.)ident(hex)
+ident(number) operator(=) ident(octal)operator(.)ident(oct)
+
+ident(print) string<delimiter(")content(Gimme a number in decimal, octal, or hex: )delimiter(")>
+ident(num) operator(=) ident(gets)operator(.)ident(chomp)
+ident(exit) reserved(unless) reserved(defined?)operator(()ident(num)operator(\))
+ident(num) operator(=) ident(num)operator(.)ident(oct) reserved(if) ident(num) operator(=)operator(~) regexp<delimiter(/)content(^0)delimiter(/)>  comment(# does both oct and hex  )
+ident(printf) string<delimiter(")content(%d %x %o)char(\\n)delimiter(")>operator(,) ident(num)operator(,) ident(num)operator(,) ident(num)
+
+ident(print) string<delimiter(")content(Enter file permission in octal: )delimiter(")>
+ident(permissions) operator(=) ident(gets)operator(.)ident(chomp)
+ident(raise) string<delimiter(")content(Exiting ...)char(\\n)delimiter(")> reserved(unless) reserved(defined?)operator(()ident(permissions)operator(\))
+ident(puts) string<delimiter(")content(The decimal value is )inline<delimiter(#{)ident(permissions)operator(.)ident(oct)delimiter(})>delimiter(")>
+
+
+comment(# @@PLEAC@@_2.17)
+reserved(def) method(commify)operator(()ident(n)operator(\))
+    ident(n)operator(.)ident(to_s) operator(=)operator(~) regexp<delimiter(/)content(([^)char(\\.)content(]*\)()char(\\.)content(.*\)?)delimiter(/)>
+    ident(int)operator(,) ident(dec) operator(=) global_variable($1)operator(.)ident(reverse)operator(,) global_variable($2) operator(?) global_variable($2) operator(:) string<delimiter(")delimiter(")>
+    reserved(while) ident(int)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content((,|)char(\\.)content(|^\)()char(\\d)content({3}\)()char(\\d)content(\))delimiter(/)>operator(,) string<delimiter(')content(\\1)content(\\2)content(,)content(\\3)delimiter(')>operator(\))
+    reserved(end)
+    ident(int)operator(.)ident(reverse) operator(+) ident(dec)
+reserved(end)
+
+
+comment(# @@PLEAC@@_2.18)
+ident(printf) string<delimiter(")content(It took %d hour%s)char(\\n)delimiter(")>operator(,) ident(time)operator(,) ident(time) operator(==) integer(1) operator(?) string<delimiter(")delimiter(")> operator(:) string<delimiter(")content(s)delimiter(")>
+
+comment(# dunno if an equivalent to Lingua::EN::Inflect exists...)
+
+
+comment(# @@PLEAC@@_2.19)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby)
+comment(# bigfact - calculating prime factors)
+reserved(def) method(factorize)operator(()ident(orig)operator(\))
+    ident(factors) operator(=) operator({)operator(})
+    ident(factors)operator(.)ident(default) operator(=) integer(0)     comment(# return 0 instead nil if key not found in hash)
+    ident(n) operator(=) ident(orig)
+    ident(i) operator(=) integer(2)
+    ident(sqi) operator(=) integer(4)                 comment(# square of i)
+    reserved(while) ident(sqi) operator(<=) ident(n) reserved(do)
+        reserved(while) ident(n)operator(.)ident(modulo)operator(()ident(i)operator(\)) operator(==) integer(0) reserved(do)
+            ident(n) regexp<delimiter(/)content(= i
+            factors[i] += 1
+            # puts "Found factor )inline<delimiter(#{)ident(i)delimiter(})>content("
+        end
+        # we take advantage of the fact that (i +1\)**2 = i**2 + 2*i +1
+        sqi += 2 * i + 1
+        i += 1
+    end
+    
+    if (n != 1\) && (n != orig\)
+        factors[n] += 1
+    end
+    factors
+end
+
+def printfactorhash(orig, factorcount\)
+    print format("%-10d ", orig\)
+    if factorcount.length == 0
+        print "PRIME"
+    else
+        # sorts after number, because the hash keys are numbers
+        factorcount.sort.each { |factor,exponent|
+            print factor
+            if exponent > 1
+                print "**", exponent
+            end
+            print " "
+        }
+    end
+    puts
+end
+
+for arg in ARGV
+    n = arg.to_i
+    mfactors = factorize(n\)
+    printfactorhash(n, mfactors\)
+end
+#-----------------------------
+
+
+# @@PLEAC@@_3.0
+puts Time.now
+
+print "Today is day ", Time.now.yday, " of the current year.)char(\\n)content("
+print "Today is day ", Time.now.day, " of the current month.)char(\\n)content("
+
+
+# @@PLEAC@@_3.1
+day, month, year = Time.now.day, Time.now.month, Time.now.year
+# or
+day, month, year = Time.now.to_a[3..5]
+
+tl = Time.now.localtime
+printf("The current date is %04d %02d %02d)char(\\n)content(", tl.year, tl.month, tl.day\)
+
+Time.now.localtime.strftime("%Y-%m-%d"\)
+
+
+# @@PLEAC@@_3.2
+Time.local(year, month, day, hour, minute, second\).tv_sec
+Time.gm(year, month, day, hour, minute, second\).tv_sec
+
+
+# @@PLEAC@@_3.3
+sec, min, hour, day, month, year, wday, yday, isdst, zone = Time.at(epoch_secs\).to_a
+
+
+# @@PLEAC@@_3.4
+when_ = now + difference         # now -> Time ; difference -> Numeric (delta in seconds\)
+then_ = now - difference
+
+
+# @@PLEAC@@_3.5
+bree = 361535725
+nat  =  96201950
+
+difference = bree - nat
+puts "There were )inline<delimiter(#{)ident(difference)delimiter(})>content( seconds between Nat and Bree"
+
+seconds    =  difference % 60
+difference = (difference - seconds\) )delimiter(/)> integer(60)
+ident(minutes)    operator(=)  ident(difference) operator(%) integer(60)
+ident(difference) operator(=) operator(()ident(difference) operator(-) ident(minutes)operator(\)) operator(/) integer(60)
+ident(hours)      operator(=)  ident(difference) operator(%) integer(24)
+ident(difference) operator(=) operator(()ident(difference) operator(-) ident(hours)operator(\))   operator(/) integer(24)
+ident(days)       operator(=)  ident(difference) operator(%) integer(7)
+ident(weeks)      operator(=) operator(()ident(difference) operator(-) ident(days)operator(\))    operator(/)  integer(7)
+
+ident(puts) string<delimiter(")content(()inline<delimiter(#{)ident(weeks)delimiter(})>content( weeks, )inline<delimiter(#{)ident(days)delimiter(})>content( days, )inline<delimiter(#{)ident(hours)delimiter(})>content(:)inline<delimiter(#{)ident(minutes)delimiter(})>content(:)inline<delimiter(#{)ident(seconds)delimiter(})>content(\))delimiter(")>
+
+
+comment(# @@PLEAC@@_3.6)
+ident(monthday)operator(,) ident(weekday)operator(,) ident(yearday) operator(=) ident(date)operator(.)ident(mday)operator(,) ident(date)operator(.)ident(wday)operator(,) ident(date)operator(.)ident(yday)
+
+comment(# AFAIK the week number is not just a division since week boundaries are on sundays)
+ident(weeknum) operator(=) ident(d)operator(.)ident(strftime)operator(()string<delimiter(")content(%U)delimiter(")>operator(\))operator(.)ident(to_i) operator(+) integer(1)
+
+ident(year)  operator(=) integer(1981)
+ident(month) operator(=) string<delimiter(")content(jun)delimiter(")>                     comment(# or `6' if you want to emulate a broken language)
+ident(day)   operator(=) integer(16)
+ident(t) operator(=) constant(Time)operator(.)ident(mktime)operator(()ident(year)operator(,) ident(month)operator(,) ident(day)operator(\))
+ident(print) string<delimiter(")inline<delimiter(#{)ident(month)delimiter(})>content(/)inline<delimiter(#{)ident(day)delimiter(})>content(/)inline<delimiter(#{)ident(year)delimiter(})>content( was a )delimiter(")>operator(,) ident(t)operator(.)ident(strftime)operator(()string<delimiter(")content(%A)delimiter(")>operator(\))operator(,) string<delimiter(")char(\\n)delimiter(")>
+
+
+comment(# @@PLEAC@@_3.7)
+ident(yyyy)operator(,) ident(mm)operator(,) ident(dd) operator(=) global_variable($1)operator(,) global_variable($2)operator(,) global_variable($3) reserved(if) string<delimiter(")content(1998-06-25)delimiter(")> operator(=)operator(~) regexp<delimiter(/)content(()char(\\d)content(+\)-()char(\\d)content(+\)-()char(\\d)content(+\))delimiter(/)>
+
+ident(epoch_seconds) operator(=) constant(Time)operator(.)ident(mktime)operator(()ident(yyyy)operator(,) ident(mm)operator(,) ident(dd)operator(\))operator(.)ident(tv_sec)
+
+comment(# dunno an equivalent to Date::Manip#ParseDate)
+
+
+comment(# @@PLEAC@@_3.8)
+ident(string) operator(=) constant(Time)operator(.)ident(at)operator(()ident(epoch_secs)operator(\))
+constant(Time)operator(.)ident(at)operator(()integer(1234567890)operator(\))operator(.)ident(gmtime)        comment(# gives: Fri Feb 13 23:31:30 UTC 2009)
+
+ident(time) operator(=) constant(Time)operator(.)ident(mktime)operator(()integer(1973)operator(,) string<delimiter(")content(jan)delimiter(")>operator(,) integer(18)operator(,) integer(3)operator(,) integer(45)operator(,) integer(50)operator(\))
+ident(print) string<delimiter(")content(In localtime it gives: )delimiter(")>operator(,) ident(time)operator(.)ident(localtime)operator(,) string<delimiter(")char(\\n)delimiter(")>
+
+
+comment(# @@PLEAC@@_3.9)
+comment(# Ruby provides micro-seconds in Time object)
+constant(Time)operator(.)ident(now)operator(.)ident(usec)
+
+comment(# Ruby gives the seconds in floating format when substracting two Time objects)
+ident(before) operator(=) constant(Time)operator(.)ident(now)
+ident(line) operator(=) ident(gets)
+ident(elapsed) operator(=) constant(Time)operator(.)ident(now) operator(-) ident(before)
+ident(puts) string<delimiter(")content(You took )inline<delimiter(#{)ident(elapsed)delimiter(})>content( seconds.)delimiter(")>
+
+comment(# On my Celeron-400 with Linux-2.2.19-14mdk, average for three execs are:)
+comment(#   This Ruby version:       average 0.00321 sec)
+comment(#   Cookbook's Perl version: average 0.00981 sec)
+ident(size) operator(=) integer(500)
+ident(number_of_times) operator(=) integer(100)
+ident(total_time) operator(=) integer(0)
+ident(number_of_times)operator(.)ident(times) operator({)
+    comment(# populate array)
+    ident(array) operator(=) operator([)operator(])
+    ident(size)operator(.)ident(times) operator({) ident(array) operator(<<) ident(rand) operator(})
+    comment(# sort it)
+    ident(begin_) operator(=) constant(Time)operator(.)ident(now)
+    ident(array)operator(.)ident(sort!)
+    ident(time) operator(=) constant(Time)operator(.)ident(now) operator(-) ident(begin_)
+    ident(total_time) operator(+=) ident(time)
+operator(})
+ident(printf) string<delimiter(")content(On average, sorting %d random numbers takes %.5f seconds)char(\\n)delimiter(")>operator(,)
+    ident(size)operator(,) operator(()ident(total_time)operator(/)ident(Float)operator(()ident(number_of_times)operator(\))operator(\))
+
+
+comment(# @@PLEAC@@_3.10)
+ident(sleep)operator(()float(0.005)operator(\))                      comment(# Ruby is definitely not as broken as Perl :\))
+comment(# (may be interrupted by sending the process a SIGALRM\))
+
+
+comment(# @@PLEAC@@_3.11)
+comment(#!/usr/bin/ruby -w)
+comment(# hopdelta - feed mail header, produce lines)
+comment(#            showing delay at each hop.)
+ident(require) string<delimiter(')content(time)delimiter(')>
+reserved(class) class(MailHopDelta)
+
+    reserved(def) method(initialize)operator(()ident(mail)operator(\))
+        instance_variable(@head) operator(=) ident(mail)operator(.)ident(gsub)operator(()regexp<delimiter(/)char(\\n)char(\\s)content(+)delimiter(/)>operator(,)string<delimiter(')content( )delimiter(')>operator(\))
+        instance_variable(@topline) operator(=) string<delimiter(%w-)content(Sender Recipient Time Delta)delimiter(-)>
+        instance_variable(@start_from) operator(=) ident(mail)operator(.)ident(match)operator(()regexp<delimiter(/)content(^From.*)char(\\@)content(([^)char(\\s)content(>]*\))delimiter(/)>operator(\))operator([)integer(1)operator(])
+        instance_variable(@date) operator(=) constant(Time)operator(.)ident(parse)operator(()ident(mail)operator(.)ident(match)operator(()regexp<delimiter(/)content(^Date:)char(\\s)content(+(.*\))delimiter(/)>operator(\))operator([)integer(1)operator(])operator(\))
+    reserved(end)
+
+    reserved(def) method(out)operator(()ident(line)operator(\))
+         string<delimiter(")content(%-20.20s %-20.20s %-20.20s  %s)delimiter(")> operator(%) ident(line)
+    reserved(end)
+
+    reserved(def) method(hop_date)operator(()ident(day)operator(\))
+        ident(day)operator(.)ident(strftime)operator(()string<delimiter(")content(%I:%M:%S %Y/%m/%d)delimiter(")>operator(\))
+    reserved(end)
+
+    reserved(def) method(puts_hops)
+        ident(puts) ident(out)operator(()instance_variable(@topline)operator(\)) 
+        ident(puts) ident(out)operator(()operator([)string<delimiter(')content(Start)delimiter(')>operator(,) instance_variable(@start_from)operator(,) ident(hop_date)operator(()instance_variable(@date)operator(\))operator(,)string<delimiter(')delimiter(')>operator(])operator(\))
+        instance_variable(@head)operator(.)ident(split)operator(()regexp<delimiter(/)char(\\n)delimiter(/)>operator(\))operator(.)ident(reverse)operator(.)ident(grep)operator(()regexp<delimiter(/)content(^Received:)delimiter(/)>operator(\))operator(.)ident(each) reserved(do) operator(|)ident(hop)operator(|)
+            ident(hop)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\b)content(on (.*?\) (id.*\))delimiter(/)>operator(,)string<delimiter(')content(; )content(\\1)delimiter(')>operator(\))
+            ident(whence) operator(=) ident(hop)operator(.)ident(match)operator(()regexp<delimiter(/)content(;)char(\\s)content(+(.*\)$)delimiter(/)>operator(\))operator([)integer(1)operator(])
+            reserved(unless) ident(whence)
+                ident(warn) string<delimiter(")content(Bad received line: )inline<delimiter(#{)ident(hop)delimiter(})>delimiter(")>
+                reserved(next)
+            reserved(end)
+            ident(from) operator(=) global_variable($+) reserved(if) ident(hop) operator(=)operator(~) regexp<delimiter(/)content(from)char(\\s)content(+()char(\\S)content(+\)|)char(\\()content((.*?\))char(\\\))delimiter(/)>
+            ident(by)   operator(=) global_variable($1) reserved(if) ident(hop) operator(=)operator(~) regexp<delimiter(/)content(by)char(\\s)content(+()char(\\S)content(+)char(\\.)char(\\S)content(+\))delimiter(/)>
+            reserved(next) reserved(unless) ident(now) operator(=) constant(Time)operator(.)ident(parse)operator(()ident(whence)operator(\))operator(.)ident(localtime)
+            ident(delta) operator(=) ident(now) operator(-) instance_variable(@date)
+            ident(puts) ident(out)operator(()operator([)ident(from)operator(,) ident(by)operator(,) ident(hop_date)operator(()ident(now)operator(\))operator(,) ident(hop_time)operator(()ident(delta)operator(\))operator(])operator(\))
+            instance_variable(@date) operator(=) ident(now)
+        reserved(end)
+    reserved(end)
+
+    reserved(def) method(hop_time)operator(()ident(secs)operator(\))
+        ident(sign) operator(=) ident(secs) operator(<) integer(0) operator(?) integer(-1) operator(:) integer(1)
+        ident(days)operator(,) ident(secs) operator(=) ident(secs)operator(.)ident(abs)operator(.)ident(divmod)operator(()integer(60) operator(*) integer(60) operator(*) integer(24)operator(\))
+        ident(hours)operator(,)ident(secs) operator(=) ident(secs)operator(.)ident(abs)operator(.)ident(divmod)operator(()integer(60) operator(*) integer(60)operator(\))
+        ident(mins)operator(,) ident(secs) operator(=) ident(secs)operator(.)ident(abs)operator(.)ident(divmod)operator(()integer(60)operator(\))
+        ident(rtn) operator(=)  string<delimiter(")content(%3ds)delimiter(")> operator(%) operator([)ident(secs)  operator(*) ident(sign)operator(])
+        ident(rtn) operator(<<) string<delimiter(")content(%3dm)delimiter(")> operator(%) operator([)ident(mins)  operator(*) ident(sign)operator(]) reserved(if) ident(mins)  operator(!=) integer(0)
+        ident(rtn) operator(<<) string<delimiter(")content(%3dh)delimiter(")> operator(%) operator([)ident(hours) operator(*) ident(sign)operator(]) reserved(if) ident(hours) operator(!=) integer(0)
+        ident(rtn) operator(<<) string<delimiter(")content(%3dd)delimiter(")> operator(%) operator([)ident(days)  operator(*) ident(sign)operator(]) reserved(if) ident(days)  operator(!=) integer(0) 
+        ident(rtn)
+    reserved(end)
+reserved(end)
+
+global_variable($/) operator(=) string<delimiter(")delimiter(")>
+ident(mail) operator(=) constant(MailHopDelta)operator(.)ident(new)operator(()pre_constant(ARGF)operator(.)ident(gets)operator(\))operator(.)ident(puts_hops)
+
+
+comment(# @@PLEAC@@_4.0)
+ident(single_level) operator(=) operator([) string<delimiter(")content(this)delimiter(")>operator(,) string<delimiter(")content(that)delimiter(")>operator(,) string<delimiter(")content(the)delimiter(")>operator(,) string<delimiter(")content(other)delimiter(")> operator(])
+
+comment(# Ruby directly supports nested arrays)
+ident(double_level) operator(=) operator([) string<delimiter(")content(this)delimiter(")>operator(,) string<delimiter(")content(that)delimiter(")>operator(,) operator([) string<delimiter(")content(the)delimiter(")>operator(,) string<delimiter(")content(other)delimiter(")> operator(]) operator(])
+ident(still_single_level) operator(=) operator([) string<delimiter(")content(this)delimiter(")>operator(,) string<delimiter(")content(that)delimiter(")>operator(,) operator([) string<delimiter(")content(the)delimiter(")>operator(,) string<delimiter(")content(other)delimiter(")> operator(]) operator(])operator(.)ident(flatten)
+
+
+comment(# @@PLEAC@@_4.1)
+ident(a) operator(=) operator([) string<delimiter(")content(quick)delimiter(")>operator(,) string<delimiter(")content(brown)delimiter(")>operator(,) string<delimiter(")content(fox)delimiter(")> operator(])
+ident(a) operator(=) string<delimiter(%w()content(Why are you teasing me?)delimiter(\))>
+
+ident(lines) operator(=) string<delimiter(<<"END_OF_HERE_DOC")>operator(.)ident(gsub)operator(()regexp<delimiter(/)content(^)char(\\s)content(*(.+\))delimiter(/)>operator(,) string<delimiter(')content(\\1)delimiter(')>operator(\))string<content(
+    The boy stood on the burning deck,
+    It was as hot as glass.)delimiter(
+END_OF_HERE_DOC)>
+
+ident(bigarray) operator(=) constant(IO)operator(.)ident(readlines)operator(()string<delimiter(")content(mydatafile)delimiter(")>operator(\))operator(.)ident(collect) operator({) operator(|)ident(l)operator(|) ident(l)operator(.)ident(chomp) operator(})
+
+ident(name) operator(=) string<delimiter(")content(Gandalf)delimiter(")>
+ident(banner) operator(=) string<delimiter(%Q()content(Speak, )inline<delimiter(#{)ident(name)delimiter(})>content(, and welcome!)delimiter(\))>
+
+ident(host_info)  operator(=) shell<delimiter(`)content(host )inline<delimiter(#{)ident(his_host)delimiter(})>delimiter(`)>
+
+shell<delimiter(%x()content(ps )inline<delimiter(#{)global_variable($$)delimiter(})>delimiter(\))>
+
+ident(banner) operator(=) string<delimiter(')content(Costs only $4.95)delimiter(')>operator(.)ident(split)operator(()string<delimiter(')content( )delimiter(')>operator(\))
+
+ident(rax) operator(=) string<delimiter(%w!)content( ( \) < > { } [ ] )delimiter(!)>
+
+
+comment(# @@PLEAC@@_4.2)
+reserved(def) method(commify_series)operator(()ident(arr)operator(\))
+    reserved(return) string<delimiter(')delimiter(')> reserved(if) reserved(not) ident(arr)
+    reserved(case) ident(arr)operator(.)ident(size)
+        reserved(when) integer(0) reserved(then) string<delimiter(')delimiter(')>
+        reserved(when) integer(1) reserved(then) ident(arr)operator([)integer(0)operator(])
+        reserved(when) integer(2) reserved(then) ident(arr)operator(.)ident(join)operator(()string<delimiter(')content( and )delimiter(')>operator(\))
+        reserved(else) ident(arr)operator([)integer(0)operator(..)integer(-2)operator(])operator(.)ident(join)operator(()string<delimiter(')content(, )delimiter(')>operator(\)) operator(+) string<delimiter(')content(, and )delimiter(')> operator(+) ident(arr)operator([)integer(-1)operator(])
+    reserved(end)
+reserved(end)
+
+ident(array) operator(=) operator([) string<delimiter(")content(red)delimiter(")>operator(,) string<delimiter(")content(yellow)delimiter(")>operator(,) string<delimiter(")content(green)delimiter(")> operator(])
+
+ident(print) string<delimiter(")content(I have )delimiter(")>operator(,) ident(array)operator(,) string<delimiter(")content( marbles)char(\\n)delimiter(")>
+comment(# -> I have redyellowgreen marbles)
+
+comment(# But unlike Perl:)
+ident(print) string<delimiter(")content(I have )inline<delimiter(#{)ident(array)delimiter(})>content( marbles)char(\\n)delimiter(")>
+comment(# -> I have redyellowgreen marbles)
+comment(# So, needs:)
+ident(print) string<delimiter(")content(I have )inline<delimiter(#{)ident(array)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))delimiter(})>content( marbles)char(\\n)delimiter(")>
+comment(# -> I have red yellow green marbles)
+
+comment(#!/usr/bin/ruby)
+comment(# communify_series - show proper comma insertion in list output)
+
+reserved(def) method(commify_series)operator(()ident(arr)operator(\))
+    reserved(return) string<delimiter(')delimiter(')> reserved(if) reserved(not) ident(arr)
+    ident(sepchar) operator(=) ident(arr)operator(.)ident(find) operator({) operator(|)ident(p)operator(|) ident(p) operator(=)operator(~) regexp<delimiter(/)content(,)delimiter(/)> operator(}) operator(?) string<delimiter(')content(; )delimiter(')> operator(:) string<delimiter(')content(, )delimiter(')>
+    reserved(case) ident(arr)operator(.)ident(size)
+        reserved(when) integer(0) reserved(then) string<delimiter(')delimiter(')>
+        reserved(when) integer(1) reserved(then) ident(arr)operator([)integer(0)operator(])
+        reserved(when) integer(2) reserved(then) ident(arr)operator(.)ident(join)operator(()string<delimiter(')content( and )delimiter(')>operator(\))
+        reserved(else) ident(arr)operator([)integer(0)operator(..)integer(-2)operator(])operator(.)ident(join)operator(()ident(sepchar)operator(\)) operator(+) ident(sepchar) operator(+) string<delimiter(')content(and )delimiter(')> operator(+) ident(arr)operator([)integer(-1)operator(])
+    reserved(end)
+reserved(end)
+
+ident(lists) operator(=) operator([)
+    operator([) string<delimiter(')content(just one thing)delimiter(')> operator(])operator(,)
+    string<delimiter(%w()content(Mutt Jeff)delimiter(\))>operator(,)
+    string<delimiter(%w()content(Peter Paul Mary)delimiter(\))>operator(,)
+    operator([) string<delimiter(')content(To our parents)delimiter(')>operator(,) string<delimiter(')content(Mother Theresa)delimiter(')>operator(,) string<delimiter(')content(God)delimiter(')> operator(])operator(,)
+    operator([) string<delimiter(')content(pastrami)delimiter(')>operator(,) string<delimiter(')content(ham and cheese)delimiter(')>operator(,) string<delimiter(')content(peanut butter and jelly)delimiter(')>operator(,) string<delimiter(')content(tuna)delimiter(')> operator(])operator(,)
+    operator([) string<delimiter(')content(recycle tired, old phrases)delimiter(')>operator(,) string<delimiter(')content(ponder big, happy thoughts)delimiter(')> operator(])operator(,)
+    operator([) string<delimiter(')content(recycle tired, old phrases)delimiter(')>operator(,)
+      string<delimiter(')content(ponder big, happy thoughts)delimiter(')>operator(,)
+      string<delimiter(')content(sleep and dream peacefully)delimiter(')> operator(])operator(,)
+operator(])
+
+reserved(for) ident(list) reserved(in) ident(lists) reserved(do)
+    ident(puts) string<delimiter(")content(The list is: )inline<delimiter(#{)ident(commify_series)operator(()ident(list)operator(\))delimiter(})>content(.)delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_4.3)
+comment(#   (note: AFAIK Ruby doesn't allow gory change of Array length\))
+comment(# grow the array by assigning nil to past the end of array)
+ident(ary)operator([)ident(new_size)integer(-1)operator(]) operator(=) pre_constant(nil)
+comment(# shrink the array by slicing it down)
+ident(ary)operator(.)ident(slice!)operator(()ident(new_size)operator(..)integer(-1)operator(\))
+comment(# init the array with given size)
+constant(Array)operator(.)ident(new)operator(()ident(number_of_elems)operator(\))
+comment(# assign to an element past the original end enlarges the array)
+ident(ary)operator([)ident(index_new_last_elem)operator(]) operator(=) ident(value)
+
+reserved(def) method(what_about_that_array)operator(()ident(a)operator(\))
+    ident(print) string<delimiter(")content(The array now has )delimiter(")>operator(,) ident(a)operator(.)ident(size)operator(,) string<delimiter(")content( elements.)char(\\n)delimiter(")>
+    comment(# Index of last element is not really interesting in Ruby)
+    ident(print) string<delimiter(")content(Element #3 is `)inline<delimiter(#{)ident(a)operator([)integer(3)operator(])delimiter(})>content('.)char(\\n)delimiter(")>
+reserved(end)
+ident(people) operator(=) string<delimiter(%w()content(Crosby Stills Nash Young)delimiter(\))>
+ident(what_about_that_array)operator(()ident(people)operator(\))
+
+
+comment(# @@PLEAC@@_4.4)
+comment(# OO style)
+ident(bad_users)operator(.)ident(each) operator({) operator(|)ident(user)operator(|)
+    ident(complain)operator(()ident(user)operator(\))
+operator(})
+comment(# or, functional style)
+reserved(for) ident(user) reserved(in) ident(bad_users)
+    ident(complain)operator(()ident(user)operator(\))
+reserved(end)
+
+reserved(for) ident(var) reserved(in) constant(ENV)operator(.)ident(keys)operator(.)ident(sort)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(var)delimiter(})>content(=)inline<delimiter(#{)constant(ENV)operator([)ident(var)operator(])delimiter(})>delimiter(")>
+reserved(end)
+
+reserved(for) ident(user) reserved(in) ident(all_users)
+    ident(disk_space) operator(=) ident(get_usage)operator(()ident(user)operator(\))
+    reserved(if) operator(()ident(disk_space) operator(>) constant(MAX_QUOTA)operator(\))
+        ident(complain)operator(()ident(user)operator(\))
+    reserved(end)
+reserved(end)
+
+reserved(for) ident(l) reserved(in) constant(IO)operator(.)ident(popen)operator(()string<delimiter(")content(who)delimiter(")>operator(\))operator(.)ident(readlines)
+    ident(print) ident(l) reserved(if) ident(l) operator(=)operator(~) regexp<delimiter(/)content(^gc)delimiter(/)> 
+reserved(end)
+
+comment(# we can mimic the obfuscated Perl way)
+reserved(while) ident(fh)operator(.)ident(gets)               comment(# $_ is set to the line just read)
+    ident(chomp)                   comment(# $_ has a trailing \\n removed, if it had one)
+    ident(split)operator(.)ident(each) operator({) operator(|)ident(w)operator(|)        comment(# $_ is split on whitespace)
+                            comment(# but $_ is not set to each chunk as in Perl)
+        ident(print) ident(w)operator(.)ident(reverse)
+    operator(})
+reserved(end)
+comment(# ...or use a cleaner way)
+reserved(for) ident(l) reserved(in) ident(fh)operator(.)ident(readlines)
+    ident(l)operator(.)ident(chomp)operator(.)ident(split)operator(.)ident(each) operator({) operator(|)ident(w)operator(|) ident(print) ident(w)operator(.)ident(reverse) operator(})
+reserved(end)
+
+comment(# same drawback as in problem 1.4, we can't mutate a Numeric...)
+ident(array)operator(.)ident(collect!) operator({) operator(|)ident(v)operator(|) ident(v) operator(-) integer(1) operator(})
+
+ident(a) operator(=) operator([) operator(.)integer(5)operator(,) integer(3) operator(])operator(;) ident(b) operator(=) operator([) integer(0)operator(,) integer(1) operator(])
+reserved(for) ident(ary) reserved(in) operator([) ident(a)operator(,) ident(b) operator(])
+    ident(ary)operator(.)ident(collect!) operator({) operator(|)ident(v)operator(|) ident(v) operator(*) integer(7) operator(})
+reserved(end)
+ident(puts) string<delimiter(")inline<delimiter(#{)ident(a)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))delimiter(})>content( )inline<delimiter(#{)ident(b)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))delimiter(})>delimiter(")>
+
+comment(# we can mutate Strings, cool; we need a trick for the scalar)
+reserved(for) ident(ary) reserved(in) operator([) operator([) ident(scalar) operator(])operator(,) ident(array)operator(,) ident(hash)operator(.)ident(values) operator(])
+    ident(ary)operator(.)ident(each) operator({) operator(|)ident(v)operator(|) ident(v)operator(.)ident(strip!) operator(})     comment(# String#strip rules :\))
+reserved(end)
+
+
+comment(# @@PLEAC@@_4.5)
+comment(# not relevant in Ruby since we have always references)
+reserved(for) ident(item) reserved(in) ident(array)
+    comment(# do somethingh with item)
+reserved(end)
+
+
+comment(# @@PLEAC@@_4.6)
+ident(unique) operator(=) ident(list)operator(.)ident(uniq)
+
+comment(# generate a list of users logged in, removing duplicates)
+ident(users) operator(=) shell<delimiter(`)content(who)delimiter(`)>operator(.)ident(collect) operator({) operator(|)ident(l)operator(|) ident(l) operator(=)operator(~) regexp<delimiter(/)content(()char(\\w)content(+\))delimiter(/)>operator(;) global_variable($1) operator(})operator(.)ident(sort)operator(.)ident(uniq)
+ident(puts)operator(()string<delimiter(")content(users logged in: )inline<delimiter(#{)ident(commify_series)operator(()ident(users)operator(\))delimiter(})>delimiter(")>operator(\))  comment(# see 4.2 for commify_series)
+
+
+comment(# @@PLEAC@@_4.7)
+ident(a) operator(-) ident(b)
+comment(# [ 1, 1, 2, 2, 3, 3, 3, 4, 5 ] - [ 1, 2, 4 ]  ->  [3, 5])
+
+
+comment(# @@PLEAC@@_4.8)
+ident(union) operator(=) ident(a) operator(|) ident(b)
+ident(intersection) operator(=) ident(a) operator(&) ident(b)
+ident(difference) operator(=) ident(a) operator(-) ident(b)
+
+
+comment(# @@PLEAC@@_4.9)
+ident(array1)operator(.)ident(concat)operator(()ident(array2)operator(\))
+comment(# if you will assign to another object, better use:)
+ident(new_ary) operator(=) ident(array1) operator(+) ident(array2)
+
+ident(members) operator(=) operator([) string<delimiter(")content(Time)delimiter(")>operator(,) string<delimiter(")content(Flies)delimiter(")> operator(])
+ident(initiates) operator(=)  operator([) string<delimiter(")content(An)delimiter(")>operator(,) string<delimiter(")content(Arrow)delimiter(")> operator(])
+ident(members) operator(+=) ident(initiates)
+
+ident(members) operator(=) operator([) string<delimiter(")content(Time)delimiter(")>operator(,) string<delimiter(")content(Flies)delimiter(")> operator(])
+ident(initiates) operator(=) operator([) string<delimiter(")content(An)delimiter(")>operator(,) string<delimiter(")content(Arrow)delimiter(")> operator(])
+ident(members)operator([)integer(2)operator(,)integer(0)operator(]) operator(=) operator([) string<delimiter(")content(Like)delimiter(")>operator(,) ident(initiates) operator(])operator(.)ident(flatten)
+
+ident(members)operator([)integer(0)operator(]) operator(=) string<delimiter(")content(Fruit)delimiter(")>
+ident(members)operator([)integer(3)operator(,)integer(2)operator(]) operator(=) string<delimiter(")content(A)delimiter(")>operator(,) string<delimiter(")content(Banana)delimiter(")>
+
+
+comment(# @@PLEAC@@_4.10)
+ident(reversed) operator(=) ident(ary)operator(.)ident(reverse)
+
+ident(ary)operator(.)ident(reverse_each) operator({) operator(|)ident(e)operator(|)
+    comment(# do something with e)
+operator(})
+
+ident(descending) operator(=) ident(ary)operator(.)ident(sort)operator(.)ident(reverse)
+ident(descending) operator(=) ident(ary)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(b) operator(<=>) ident(a) operator(})
+
+
+comment(# @@PLEAC@@_4.11)
+comment(# remove n elements from front of ary (shift n\))
+ident(front) operator(=) ident(ary)operator(.)ident(slice!)operator(()integer(0)operator(,) ident(n)operator(\))
+
+comment(# remove n elements from the end of ary (pop n\))
+ident(end_) operator(=) ident(ary)operator(.)ident(slice!)operator(()operator(-)ident(n) operator(..) integer(-1)operator(\))
+
+comment(# let's extend the Array class, to make that useful)
+reserved(class) class(Array)
+    reserved(def) method(shift2)operator(()operator(\))
+        ident(slice!)operator(()integer(0) operator(..) integer(1)operator(\))     comment(# more symetric with pop2...)
+    reserved(end)
+    reserved(def) method(pop2)operator(()operator(\))
+        ident(slice!)operator(()integer(-2) operator(..) integer(-1)operator(\))
+    reserved(end)
+reserved(end)
+
+ident(friends) operator(=) string<delimiter(%w()content(Peter Paul Mary Jim Tim)delimiter(\))>
+ident(this)operator(,) ident(that) operator(=) ident(friends)operator(.)ident(shift2)
+
+ident(beverages) operator(=) string<delimiter(%w()content(Dew Jolt Cola Sprite Fresca)delimiter(\))>
+ident(pair) operator(=) ident(beverages)operator(.)ident(pop2)
+
+
+comment(# @@PLEAC@@_4.12)
+comment(# use Enumerable#detect (or the synonym Enumerable#find\))
+ident(highest_eng) operator(=) ident(employees)operator(.)ident(detect) operator({) operator(|)ident(emp)operator(|) ident(emp)operator(.)ident(category) operator(==) string<delimiter(')content(engineer)delimiter(')> operator(})
+
+
+comment(# @@PLEAC@@_4.13)
+comment(# use Enumerable#select (or the synonym Enumerable#find_all\))
+ident(bigs) operator(=) ident(nums)operator(.)ident(select) operator({) operator(|)ident(i)operator(|) ident(i) operator(>) integer(1_000_000) operator(})
+ident(pigs) operator(=) ident(users)operator(.)ident(keys)operator(.)ident(select) operator({) operator(|)ident(k)operator(|) ident(users)operator([)ident(k)operator(]) operator(>) float(1e7) operator(})
+
+ident(matching) operator(=) shell<delimiter(`)content(who)delimiter(`)>operator(.)ident(select) operator({) operator(|)ident(u)operator(|) ident(u) operator(=)operator(~) regexp<delimiter(/)content(^gnat )delimiter(/)> operator(})
+
+ident(engineers) operator(=) ident(employees)operator(.)ident(select) operator({) operator(|)ident(e)operator(|) ident(e)operator(.)ident(position) operator(==) string<delimiter(')content(Engineer)delimiter(')> operator(})
+
+ident(secondary_assistance) operator(=) ident(applicants)operator(.)ident(select) operator({) operator(|)ident(a)operator(|)
+    ident(a)operator(.)ident(income) operator(>)operator(=) integer(26_000) operator(&&) ident(a)operator(.)ident(income) operator(<) integer(30_000)
+operator(})
+
+
+comment(# @@PLEAC@@_4.14)
+comment(# normally you would have an array of Numeric (Float or)
+comment(# Fixnum or Bignum\), so you would use:)
+ident(sorted) operator(=) ident(unsorted)operator(.)ident(sort)
+comment(# if you have strings representing Integers or Floats)
+comment(# you may specify another sort method:)
+ident(sorted) operator(=) ident(unsorted)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator(.)ident(to_f) operator(<=>) ident(b)operator(.)ident(to_f) operator(})
+
+comment(# let's use the list of my own PID's)
+shell<delimiter(`)content(ps ux)delimiter(`)>operator(.)ident(split)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))operator([)integer(1)operator(..)integer(-1)operator(])operator(.)
+    ident(select) operator({) operator(|)ident(i)operator(|) ident(i) operator(=)operator(~) regexp<delimiter(/)content(^)inline<delimiter(#{)constant(ENV)operator([)string<delimiter(')content(USER)delimiter(')>operator(])delimiter(})>delimiter(/)> operator(})operator(.)
+    ident(collect) operator({) operator(|)ident(i)operator(|) ident(i)operator(.)ident(split)operator([)integer(1)operator(]) operator(})operator(.)
+    ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator(.)ident(to_i) operator(<=>) ident(b)operator(.)ident(to_i) operator(})operator(.)ident(each) operator({) operator(|)ident(i)operator(|) ident(puts) ident(i) operator(})
+ident(puts) string<delimiter(")content(Select a process ID to kill:)delimiter(")>
+ident(pid) operator(=) ident(gets)operator(.)ident(chomp)
+ident(raise) string<delimiter(")content(Exiting ... )char(\\n)delimiter(")> reserved(unless) ident(pid) operator(&&) ident(pid) operator(=)operator(~) regexp<delimiter(/)content(^)char(\\d)content(+$)delimiter(/)>
+constant(Process)operator(.)ident(kill)operator(()string<delimiter(')content(TERM)delimiter(')>operator(,) ident(pid)operator(.)ident(to_i)operator(\))
+ident(sleep) integer(2)
+constant(Process)operator(.)ident(kill)operator(()string<delimiter(')content(KILL)delimiter(')>operator(,) ident(pid)operator(.)ident(to_i)operator(\))
+
+ident(descending) operator(=) ident(unsorted)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(b)operator(.)ident(to_f) operator(<=>) ident(a)operator(.)ident(to_f) operator(})
+
+
+comment(# @@PLEAC@@_4.15)
+ident(ordered) operator(=) ident(unordered)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(compare)operator(()ident(a)operator(,)ident(b)operator(\)) operator(})
+
+ident(precomputed) operator(=) ident(unordered)operator(.)ident(collect) operator({) operator(|)ident(e)operator(|) operator([)ident(compute)operator(,) ident(e)operator(]) operator(})
+ident(ordered_precomputed) operator(=) ident(precomputed)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(0)operator(]) operator(<=>) ident(b)operator([)integer(0)operator(]) operator(})
+ident(ordered) operator(=) ident(ordered_precomputed)operator(.)ident(collect) operator({) operator(|)ident(e)operator(|) ident(e)operator([)integer(1)operator(]) operator(})
+
+ident(ordered) operator(=) ident(unordered)operator(.)ident(collect) operator({) operator(|)ident(e)operator(|) operator([)ident(compute)operator(,) ident(e)operator(]) operator(})operator(.)
+    ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(0)operator(]) operator(<=>) ident(b)operator([)integer(0)operator(]) operator(})operator(.)
+    ident(collect) operator({) operator(|)ident(e)operator(|) ident(e)operator([)integer(1)operator(]) operator(})
+
+reserved(for) ident(employee) reserved(in) ident(employees)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator(.)ident(name) operator(<=>) ident(b)operator(.)ident(name) operator(})
+    ident(print) ident(employee)operator(.)ident(name)operator(,) string<delimiter(")content( earns )char(\\$)content( )delimiter(")>operator(,) ident(employee)operator(.)ident(salary)operator(,) string<delimiter(")char(\\n)delimiter(")>
+reserved(end)
+
+comment(# Beware! `0' is true in Ruby.)
+comment(# For chaining comparisons, you may use Numeric#nonzero?, which)
+comment(# returns num if num is not zero, nil otherwise)
+ident(sorted) operator(=) ident(employees)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) operator(()ident(a)operator(.)ident(name) operator(<=>) ident(b)operator(.)ident(name)operator(\))operator(.)ident(nonzero?) operator(||) ident(b)operator(.)ident(age) operator(<=>) ident(a)operator(.)ident(age) operator(})
+
+ident(users) operator(=) operator([)operator(])
+comment(# getpwent is not wrapped in Ruby... let's fallback)
+constant(IO)operator(.)ident(readlines)operator(()string<delimiter(')content(/etc/passwd)delimiter(')>operator(\))operator(.)ident(each) operator({) operator(|)ident(u)operator(|) ident(users) operator(<<) ident(u)operator(.)ident(split)operator(()string<delimiter(')content(:)delimiter(')>operator(\)) operator(})
+ident(users)operator(.)ident(sort!) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(0)operator(]) operator(<=>) ident(b)operator([)integer(0)operator(]) operator(})
+reserved(for) ident(user) reserved(in) ident(users)
+    ident(puts) ident(user)operator([)integer(0)operator(])
+reserved(end)
+
+ident(sorted) operator(=) ident(names)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(1)operator(,) integer(1)operator(]) operator(<=>) ident(b)operator([)integer(1)operator(,) integer(1)operator(]) operator(})
+ident(sorted) operator(=) ident(strings)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator(.)ident(length) operator(<=>) ident(b)operator(.)ident(length) operator(})
+
+comment(# let's show only the compact version)
+ident(ordered) operator(=) ident(strings)operator(.)ident(collect) operator({) operator(|)ident(e)operator(|) operator([)ident(e)operator(.)ident(length)operator(,) ident(e)operator(]) operator(})operator(.)
+    ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(0)operator(]) operator(<=>) ident(b)operator([)integer(0)operator(]) operator(})operator(.)
+    ident(collect) operator({) operator(|)ident(e)operator(|) ident(e)operator([)integer(1)operator(]) operator(})
+
+ident(ordered) operator(=) ident(strings)operator(.)ident(collect) operator({) operator(|)ident(e)operator(|) operator([)regexp<delimiter(/)char(\\d)content(+)delimiter(/)>operator(.)ident(match)operator(()ident(e)operator(\))operator([)integer(0)operator(])operator(.)ident(to_i)operator(,) ident(e)operator(]) operator(})operator(.)
+    ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(0)operator(]) operator(<=>) ident(b)operator([)integer(0)operator(]) operator(})operator(.)
+    ident(collect) operator({) operator(|)ident(e)operator(|) ident(e)operator([)integer(1)operator(]) operator(})
+
+ident(print) shell<delimiter(`)content(cat /etc/passwd)delimiter(`)>operator(.)ident(collect) operator({) operator(|)ident(e)operator(|) operator([)ident(e)operator(,) ident(e)operator(.)ident(split)operator(()string<delimiter(')content(:)delimiter(')>operator(\))operator(.)ident(indexes)operator(()integer(3)operator(,)integer(2)operator(,)integer(0)operator(\))operator(])operator(.)ident(flatten) operator(})operator(.)
+    ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) operator(()ident(a)operator([)integer(1)operator(]) operator(<=>) ident(b)operator([)integer(1)operator(])operator(\))operator(.)ident(nonzero?) operator(||) operator(()ident(a)operator([)integer(2)operator(]) operator(<=>) ident(b)operator([)integer(2)operator(])operator(\))operator(.)ident(nonzero?) operator(||) ident(a)operator([)integer(3)operator(]) operator(<=>) ident(b)operator([)integer(3)operator(]) operator(})operator(.)
+    ident(collect) operator({) operator(|)ident(e)operator(|) ident(e)operator([)integer(0)operator(]) operator(})
+
+
+comment(# @@PLEAC@@_4.16)
+ident(circular)operator(.)ident(unshift)operator(()ident(circular)operator(.)ident(pop)operator(\))        comment(# the last shall be first)
+ident(circular)operator(.)ident(push)operator(()ident(circular)operator(.)ident(shift)operator(\))         comment(# and vice versa)
+
+reserved(def) method(grab_and_rotate)operator(()ident(l)operator(\))
+    ident(l)operator(.)ident(push)operator(()ident(ret) operator(=) ident(l)operator(.)ident(shift)operator(\))
+    ident(ret)
+reserved(end)
+
+ident(processes) operator(=) operator([)integer(1)operator(,) integer(2)operator(,) integer(3)operator(,) integer(4)operator(,) integer(5)operator(])
+reserved(while) operator(()integer(1)operator(\))
+    ident(process) operator(=) ident(grab_and_rotate)operator(()ident(processes)operator(\))
+    ident(puts) string<delimiter(")content(Handling process )inline<delimiter(#{)ident(process)delimiter(})>delimiter(")>
+    ident(sleep) integer(1)
+reserved(end)
+
+
+comment(# @@PLEAC@@_4.17)
+reserved(def) method(fisher_yates_shuffle)operator(()ident(a)operator(\))
+    operator(()ident(a)operator(.)ident(size)integer(-1)operator(\))operator(.)ident(downto)operator(()integer(1)operator(\)) operator({) operator(|)ident(i)operator(|)
+        ident(j) operator(=) ident(rand)operator(()ident(i)integer(+1)operator(\))
+        ident(a)operator([)ident(i)operator(])operator(,) ident(a)operator([)ident(j)operator(]) operator(=) ident(a)operator([)ident(j)operator(])operator(,) ident(a)operator([)ident(i)operator(]) reserved(if) ident(i) operator(!=) ident(j)
+    operator(})
+reserved(end)
+
+reserved(def) method(naive_shuffle)operator(()ident(a)operator(\))
+    reserved(for) ident(i) reserved(in) integer(0)operator(...)ident(a)operator(.)ident(size)
+        ident(j) operator(=) ident(rand)operator(()ident(a)operator(.)ident(size)operator(\))
+        ident(a)operator([)ident(i)operator(])operator(,) ident(a)operator([)ident(j)operator(]) operator(=) ident(a)operator([)ident(j)operator(])operator(,) ident(a)operator([)ident(i)operator(])
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_4.18)
+comment(#!/usr/bin/env ruby)
+comment(# example 4-2 words)
+comment(# words - gather lines, present in colums)
+
+comment(# class to encapsulate the word formatting from the input)
+reserved(class) class(WordFormatter)
+    reserved(def) method(initialize)operator(()ident(cols)operator(\))
+        instance_variable(@cols) operator(=) ident(cols)
+    reserved(end)
+
+    comment(# helper to return the length of the longest word in the wordlist)
+    reserved(def) method(maxlen)operator(()ident(wordlist)operator(\))
+        ident(max) operator(=) integer(1)
+        reserved(for) ident(word) reserved(in) ident(wordlist)
+            reserved(if) ident(word)operator(.)ident(length) operator(>) ident(max)
+                ident(max) operator(=) ident(word)operator(.)ident(length)
+            reserved(end)
+        reserved(end)
+        ident(max)
+    reserved(end)
+
+    comment(# process the wordlist and print it formmated into columns)
+    reserved(def) method(output)operator(()ident(wordlist)operator(\))
+        ident(collen) operator(=) ident(maxlen)operator(()ident(wordlist)operator(\)) operator(+) integer(1)
+        ident(columns) operator(=) instance_variable(@cols) operator(/) ident(collen)
+        ident(columns) operator(=) integer(1) reserved(if) ident(columns) operator(==) integer(0)
+        ident(rows) operator(=) operator(()ident(wordlist)operator(.)ident(length) operator(+) ident(columns) operator(-) integer(1)operator(\)) operator(/) ident(columns)
+        comment(# now process each item, picking out proper piece for this position)
+        integer(0)operator(.)ident(upto)operator(()ident(rows) operator(*) ident(columns) operator(-) integer(1)operator(\)) operator({) operator(|)ident(item)operator(|)
+            ident(target) operator(=) operator(()ident(item) operator(%) ident(columns)operator(\)) operator(*) ident(rows) operator(+) operator(()ident(item) operator(/) ident(columns)operator(\))
+            ident(eol) operator(=) operator(()operator(()ident(item)integer(+1)operator(\)) operator(%) ident(columns) operator(==) integer(0)operator(\))
+            ident(piece) operator(=) ident(wordlist)operator([)ident(target)operator(]) operator(||) string<delimiter(")delimiter(")>
+            ident(piece) operator(=) ident(piece)operator(.)ident(ljust)operator(()ident(collen)operator(\)) reserved(unless) ident(eol)
+            ident(print) ident(piece)
+            ident(puts) reserved(if) ident(eol)
+        operator(})
+        comment(# no need to finish it up, because eol is always true for the last element)
+    reserved(end)
+reserved(end)
+
+comment(# get nr of chars that fit in window or console, see PLEAC 15.4)
+comment(# not portable -- linux only (?\))
+reserved(def) method(getWinCharWidth)operator(()operator(\))
+    ident(buf) operator(=) string<delimiter(")char(\\0)delimiter(")> operator(*) integer(8)
+    global_variable($stdout)operator(.)ident(ioctl)operator(()integer(0x5413)operator(,) ident(buf)operator(\))
+    ident(ws_row)operator(,) ident(ws_col)operator(,) ident(ws_xpixel)operator(,) ident(ws_ypixel) operator(=) ident(buf)operator(.)ident(unpack)operator(()string<delimiter(")content($4)delimiter(")>operator(\))
+    ident(ws_col) operator(||) integer(80)
+reserved(rescue)
+    integer(80)
+reserved(end)
+
+comment(# main program)
+ident(cols) operator(=) ident(getWinCharWidth)operator(()operator(\))
+ident(formatter) operator(=) constant(WordFormatter)operator(.)ident(new)operator(()ident(cols)operator(\))
+ident(words) operator(=) ident(readlines)operator(()operator(\))
+ident(words)operator(.)ident(collect!) operator({) operator(|)ident(line)operator(|)
+    ident(line)operator(.)ident(chomp)
+operator(})
+ident(formatter)operator(.)ident(output)operator(()ident(words)operator(\))
+
+
+comment(# @@PLEAC@@_4.19)
+comment(# In ruby, Fixnum's are automatically converted to Bignum's when)
+comment(# needed, so there is no need for an extra module)
+reserved(def) method(factorial)operator(()ident(n)operator(\))
+    ident(s) operator(=) integer(1)
+    reserved(while) ident(n) operator(>) integer(0)
+        ident(s) operator(*=) ident(n)
+        ident(n) operator(-=) integer(1)
+    reserved(end)
+    ident(s)
+reserved(end)
+
+ident(puts) ident(factorial)operator(()integer(500)operator(\))
+
+comment(#---------------------------------------------------------)
+comment(# Example 4-3. tsc-permute)
+comment(# tsc_permute: permute each word of input)
+reserved(def) method(permute)operator(()ident(items)operator(,) ident(perms)operator(\))
+    reserved(unless) ident(items)operator(.)ident(length) operator(>) integer(0)
+        ident(puts) ident(perms)operator(.)ident(join)operator(()string<delimiter(")content( )delimiter(")>operator(\))
+    reserved(else)
+        reserved(for) ident(i) reserved(in) ident(items)
+            ident(newitems) operator(=) ident(items)operator(.)ident(dup)
+            ident(newperms) operator(=) ident(perms)operator(.)ident(dup)
+            ident(newperms)operator(.)ident(unshift)operator(()ident(newitems)operator(.)ident(delete)operator(()ident(i)operator(\))operator(\))
+            ident(permute)operator(()ident(newitems)operator(,) ident(newperms)operator(\))
+        reserved(end)
+    reserved(end)
+reserved(end)
+comment(# In ruby the main program must be after all definitions it is using)
+ident(permute)operator(()pre_constant(ARGV)operator(,) operator([)operator(])operator(\))
+
+comment(#---------------------------------------------------------)
+comment(# mjd_permute: permute each word of input)
+
+reserved(def) method(factorial)operator(()ident(n)operator(\))
+    ident(s) operator(=) integer(1)
+    reserved(while) ident(n) operator(>) integer(0)
+        ident(s) operator(*=) ident(n)
+        ident(n) operator(-=) integer(1)
+    reserved(end)
+    ident(s)
+reserved(end)
+
+comment(# we use a class with a class variable store the private cache)
+comment(# for the results of the factorial function.)
+reserved(class) class(Factorial)
+    class_variable(@@fact) operator(=) operator([) integer(1) operator(])
+    reserved(def) constant(Factorial)operator(.)ident(compute)operator(()ident(n)operator(\))
+        reserved(if) class_variable(@@fact)operator([)ident(n)operator(])
+            class_variable(@@fact)operator([)ident(n)operator(])
+        reserved(else)
+            class_variable(@@fact)operator([)ident(n)operator(]) operator(=) ident(n) operator(*) constant(Factorial)operator(.)ident(compute)operator(()ident(n) operator(-) integer(1)operator(\))
+        reserved(end)
+    reserved(end)
+reserved(end)
+
+comment(#---------------------------------------------------------)
+comment(# Example 4-4- mjd-permute)
+comment(# n2pat(n, len\): produce the N-th pattern of length len)
+
+comment(# We must use a lower case letter as parameter N, otherwise it is)
+comment(# handled as constant Length is the length of the resulting)
+comment(# array, not the index of the last element (length -1\) like in)
+comment(# the perl example.)
+reserved(def) method(n2pat)operator(()ident(n)operator(,) ident(length)operator(\))
+    ident(pat) operator(=) operator([)operator(])
+    ident(i) operator(=) integer(1)
+    reserved(while) ident(i) operator(<=) ident(length)
+        ident(pat)operator(.)ident(push)operator(()ident(n) operator(%) ident(i)operator(\))
+        ident(n) regexp<delimiter(/)content(= i
+        i += 1
+    end
+    pat
+end
+
+# pat2perm(pat\): turn pattern returned by n2pat(\) into
+# permutation of integers.
+def pat2perm(pat\)
+    source = (0 .. pat.length - 1\).to_a
+    perm = []
+    perm.push(source.slice!(pat.pop\)\) while pat.length > 0
+    perm
+end
+
+def n2perm(n, len\)
+    pat2perm(n2pat(n,len\)\)
+end
+
+# In ruby the main program must be after all definitions
+while gets
+    data = split
+    # the perl solution has used $#data, which is length-1
+    num_permutations = Factorial.compute(data.length(\)\)
+    0.upto(num_permutations - 1\) do |i|
+        # in ruby we can not use an array as selector for an array
+        # but by exchanging the two arrays, we can use the collect method
+        # which returns an array with the result of all block invocations
+        permutation = n2perm(i, data.length\).collect {
+            |j| data[j]
+        }
+        puts permutation.join(" "\)
+    end
+end
+
+
+# @@PLEAC@@_5.0
+age = { "Nat",   24,
+        "Jules", 25,
+        "Josh",  17  }
+
+age["Nat"]   = 24
+age["Jules"] = 25
+age["Josh"]  = 17
+
+food_color = {
+    "Apple"  => "red",
+    "Banana" => "yellow",
+    "Lemon"  => "yellow",
+    "Carrot" => "orange"
+             }
+
+# In Ruby, you cannot avoid the double or simple quoting
+# while manipulatin hashes
+
+
+# @@PLEAC@@_5.1
+hash[key] = value
+
+food_color["Raspberry"] = "pink"
+puts "Known foods:", food_color.keys
+
+
+# @@PLEAC@@_5.2
+# does hash have a value for key ?
+if (hash.has_key?(key\)\)
+    # it exists
+else
+    # it doesn't
+end
+
+[ "Banana", "Martini" ].each { |name|
+    print name, " is a ", food_color.has_key?(name\) ? "food" : "drink", ")char(\\n)content("
+}
+
+age = {}
+age['Toddler'] = 3
+age['Unborn'] = 0
+age['Phantasm'] = nil
+
+for thing in ['Toddler', 'Unborn', 'Phantasm', 'Relic']
+    print ")inline<delimiter(#{)ident(thing)delimiter(})>content(: "
+    print "Has-key " if age.has_key?(thing\)
+    print "True " if age[thing]
+    print "Nonzero " if age[thing] && age[thing].nonzero?
+    print ")char(\\n)content("
+end
+
+#=>
+# Toddler: Has-key True Nonzero 
+# Unborn: Has-key True 
+# Phantasm: Has-key 
+# Relic: 
+
+# You use Hash#has_key? when you use Perl's exists -> it checks
+# for existence of a key in a hash.
+# All Numeric are "True" in ruby, so the test doesn't have the
+# same semantics as in Perl; you would use Numeric#nonzero? to
+# achieve the same semantics (false if 0, true otherwise\).
+
+
+# @@PLEAC@@_5.3
+food_color.delete("Banana"\)
+
+
+# @@PLEAC@@_5.4
+hash.each { |key, value|
+    # do something with key and value
+}
+
+hash.each_key { |key|
+    # do something with key
+}
+
+food_color.each { |food, color|
+    puts ")inline<delimiter(#{)ident(food)delimiter(})>content( is )inline<delimiter(#{)ident(color)delimiter(})>content("
+}
+
+food_color.each_key { |food|
+    puts ")inline<delimiter(#{)ident(food)delimiter(})>content( is )inline<delimiter(#{)ident(food_color)operator([)ident(food)operator(])delimiter(})>content("
+}
+
+# IMO this demonstrates that OO style is by far more readable
+food_color.keys.sort.each { |food|
+    puts ")inline<delimiter(#{)ident(food)delimiter(})>content( is )inline<delimiter(#{)ident(food_color)operator([)ident(food)operator(])delimiter(})>content(."
+}
+
+#-----------------------------
+#!)delimiter(/)modifier(us)>ident(r)operator(/)ident(bin)operator(/)ident(ruby)
+comment(# countfrom - count number of messages from each sender)
+
+comment(# Default value is 0)
+ident(from) operator(=) constant(Hash)operator(.)ident(new)operator(()integer(0)operator(\))
+reserved(while) ident(gets)
+    regexp<delimiter(/)content(^From: (.*\))delimiter(/)> reserved(and) ident(from)operator([)global_variable($1)operator(]) operator(+=) integer(1)
+reserved(end)
+
+comment(# More useful to sort by number of received mail by person)
+ident(from)operator(.)ident(sort) operator({)operator(|)ident(a)operator(,)ident(b)operator(|) ident(b)operator([)integer(1)operator(])operator(<=>)ident(a)operator([)integer(1)operator(])operator(})operator(.)ident(each) operator({) operator(|)ident(v)operator(|)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(v)operator([)integer(1)operator(])delimiter(})>content(: )inline<delimiter(#{)ident(v)operator([)integer(0)operator(])delimiter(})>delimiter(")>
+operator(})
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_5.5)
+comment(# You may use the built-in 'inspect' method this way:)
+ident(p) ident(hash)
+
+comment(# Or do it the Cookbook way:)
+ident(hash)operator(.)ident(each) operator({) operator(|)ident(k)operator(,)ident(v)operator(|) ident(puts) string<delimiter(")inline<delimiter(#{)ident(k)delimiter(})>content( => )inline<delimiter(#{)ident(v)delimiter(})>delimiter(")> operator(})
+
+comment(# Sorted by keys)
+ident(hash)operator(.)ident(sort)operator(.)ident(each) operator({) operator(|)ident(e)operator(|) ident(puts) string<delimiter(")inline<delimiter(#{)ident(e)operator([)integer(0)operator(])delimiter(})>content( => )inline<delimiter(#{)ident(e)operator([)integer(1)operator(])delimiter(})>delimiter(")> operator(})
+comment(# Sorted by values)
+ident(hash)operator(.)ident(sort)operator({)operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(1)operator(])operator(<=>)ident(b)operator([)integer(1)operator(])operator(})operator(.)ident(each) operator({) operator(|)ident(e)operator(|) ident(puts) string<delimiter(")inline<delimiter(#{)ident(e)operator([)integer(0)operator(])delimiter(})>content( => )inline<delimiter(#{)ident(e)operator([)integer(1)operator(])delimiter(})>delimiter(")> operator(})
+
+
+comment(# @@PLEAC@@_5.7)
+ident(ttys) operator(=) constant(Hash)operator(.)ident(new)
+reserved(for) ident(i) reserved(in) shell<delimiter(`)content(who)delimiter(`)>
+    ident(user)operator(,) ident(tty) operator(=) ident(i)operator(.)ident(split)
+    operator(()ident(ttys)operator([)ident(user)operator(]) operator(||=) operator([)operator(])operator(\)) operator(<<) ident(tty)               comment(# see problems_ruby for more infos)
+reserved(end)
+ident(ttys)operator(.)ident(keys)operator(.)ident(sort)operator(.)ident(each) operator({) operator(|)ident(k)operator(|)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(k)delimiter(})>content(: )inline<delimiter(#{)ident(commify_series)operator(()ident(ttys)operator([)ident(k)operator(])operator(\))delimiter(})>delimiter(")>  comment(# from 4.2)
+operator(})
+
+
+comment(# @@PLEAC@@_5.8)
+ident(surname) operator(=) operator({) string<delimiter(")content(Mickey)delimiter(")> operator(=)operator(>) string<delimiter(")content(Mantle)delimiter(")>operator(,) string<delimiter(")content(Babe)delimiter(")> operator(=)operator(>) string<delimiter(")content(Ruth)delimiter(")> operator(})
+ident(puts) ident(surname)operator(.)ident(index)operator(()string<delimiter(")content(Mantle)delimiter(")>operator(\))
+
+comment(# If you really needed to 'invert' the whole hash, use Hash#invert)
+
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# foodfind - find match for food or color)
+
+ident(given) operator(=) pre_constant(ARGV)operator(.)ident(shift) reserved(or) ident(raise) string<delimiter(")content(usage: foodfind food_or_color)delimiter(")>
+
+ident(color) operator(=) operator({)
+    string<delimiter(")content(Apple)delimiter(")>  operator(=)operator(>) string<delimiter(")content(red)delimiter(")>operator(,)
+    string<delimiter(")content(Banana)delimiter(")> operator(=)operator(>) string<delimiter(")content(yellow)delimiter(")>operator(,)
+    string<delimiter(")content(Lemon)delimiter(")>  operator(=)operator(>) string<delimiter(")content(yellow)delimiter(")>operator(,)
+    string<delimiter(")content(Carrot)delimiter(")> operator(=)operator(>) string<delimiter(")content(orange)delimiter(")>operator(,)
+operator(})
+
+reserved(if) operator(()ident(color)operator(.)ident(has_key?)operator(()ident(given)operator(\))operator(\))
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(given)delimiter(})>content( is a food with color )inline<delimiter(#{)ident(color)operator([)ident(given)operator(])delimiter(})>content(.)delimiter(")>
+reserved(end)
+reserved(if) operator(()ident(color)operator(.)ident(has_value?)operator(()ident(given)operator(\))operator(\))
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(color)operator(.)ident(index)operator(()ident(given)operator(\))delimiter(})>content( is a food with color )inline<delimiter(#{)ident(given)delimiter(})>content(.)delimiter(")>
+reserved(end)
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_5.9)
+comment(# Sorted by keys (Hash#sort gives an Array of pairs made of each key,value\))
+ident(food_color)operator(.)ident(sort)operator(.)ident(each) operator({) operator(|)ident(f)operator(|)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(f)operator([)integer(0)operator(])delimiter(})>content( is )inline<delimiter(#{)ident(f)operator([)integer(1)operator(])delimiter(})>content(.)delimiter(")>
+operator(})
+
+comment(# Sorted by values)
+ident(food_color)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(1)operator(]) operator(<=>) ident(b)operator([)integer(1)operator(]) operator(})operator(.)ident(each) operator({) operator(|)ident(f)operator(|)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(f)operator([)integer(0)operator(])delimiter(})>content( is )inline<delimiter(#{)ident(f)operator([)integer(1)operator(])delimiter(})>content(.)delimiter(")>
+operator(})
+
+comment(# Sorted by length of values)
+ident(food_color)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(a)operator([)integer(1)operator(])operator(.)ident(length) operator(<=>) ident(b)operator([)integer(1)operator(])operator(.)ident(length) operator(})operator(.)ident(each) operator({) operator(|)ident(f)operator(|)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(f)operator([)integer(0)operator(])delimiter(})>content( is )inline<delimiter(#{)ident(f)operator([)integer(1)operator(])delimiter(})>content(.)delimiter(")>
+operator(})
+
+
+comment(# @@PLEAC@@_5.10)
+ident(merged) operator(=) ident(a)operator(.)ident(clone)operator(.)ident(update)operator(()ident(b)operator(\))        comment(# because Hash#update changes object in place)
+
+ident(drink_color) operator(=) operator({) string<delimiter(")content(Galliano)delimiter(")>  operator(=)operator(>) string<delimiter(")content(yellow)delimiter(")>operator(,) string<delimiter(")content(Mai Tai)delimiter(")> operator(=)operator(>) string<delimiter(")content(blue)delimiter(")> operator(})
+ident(ingested_color) operator(=) ident(drink_color)operator(.)ident(clone)operator(.)ident(update)operator(()ident(food_color)operator(\))
+
+ident(substance_color) operator(=) operator({)operator(})
+reserved(for) ident(i) reserved(in) operator([) ident(food_color)operator(,) ident(drink_color) operator(])
+    ident(i)operator(.)ident(each_key) operator({) operator(|)ident(k)operator(|)
+        reserved(if) ident(substance_color)operator(.)ident(has_key?)operator(()ident(k)operator(\))
+            ident(puts) string<delimiter(")content(Warning: )inline<delimiter(#{)ident(k)delimiter(})>content( seen twice.  Using the first definition.)delimiter(")>
+            reserved(next)
+        reserved(end)
+        ident(substance_color)operator([)ident(k)operator(]) operator(=) integer(1)
+    operator(})
+reserved(end)
+
+
+comment(# @@PLEAC@@_5.11)
+ident(common) operator(=) ident(hash1)operator(.)ident(keys) operator(&) ident(hash2)operator(.)ident(keys)
+
+ident(this_not_that) operator(=) ident(hash1)operator(.)ident(keys) operator(-) ident(hash2)operator(.)ident(keys)
+
+
+comment(# @@PLEAC@@_5.12)
+comment(# no problem here, Ruby handles any kind of object for key-ing)
+comment(# (it takes Object#hash, which defaults to Object#id\))
+
+
+comment(# @@PLEAC@@_5.13)
+comment(# AFAIK, not possible in Ruby)
+
+
+comment(# @@PLEAC@@_5.14)
+comment(# Be careful, the following is possible only because Fixnum objects are)
+comment(# special (documentation says: there is effectively only one Fixnum object)
+comment(# instance for any given integer value\).)
+ident(count) operator(=) constant(Hash)operator(.)ident(new)operator(()integer(0)operator(\))
+ident(array)operator(.)ident(each) operator({) operator(|)ident(e)operator(|)
+    ident(count)operator([)ident(e)operator(]) operator(+=) integer(1)
+operator(})
+
+
+comment(# @@PLEAC@@_5.15)
+ident(father) operator(=) operator({)
+    string<delimiter(")content(Cain)delimiter(")>      operator(,) string<delimiter(")content(Adam)delimiter(")>operator(,)
+    string<delimiter(")content(Abel)delimiter(")>      operator(,) string<delimiter(")content(Adam)delimiter(")>operator(,)
+    string<delimiter(")content(Seth)delimiter(")>      operator(,) string<delimiter(")content(Adam)delimiter(")>operator(,)
+    string<delimiter(")content(Enoch)delimiter(")>     operator(,) string<delimiter(")content(Cain)delimiter(")>operator(,)
+    string<delimiter(")content(Irad)delimiter(")>      operator(,) string<delimiter(")content(Enoch)delimiter(")>operator(,)
+    string<delimiter(")content(Mehujael)delimiter(")>  operator(,) string<delimiter(")content(Irad)delimiter(")>operator(,)
+    string<delimiter(")content(Methusael)delimiter(")> operator(,) string<delimiter(")content(Mehujael)delimiter(")>operator(,)
+    string<delimiter(")content(Lamech)delimiter(")>    operator(,) string<delimiter(")content(Methusael)delimiter(")>operator(,)
+    string<delimiter(")content(Jabal)delimiter(")>     operator(,) string<delimiter(")content(Lamech)delimiter(")>operator(,)
+    string<delimiter(")content(Jubal)delimiter(")>     operator(,) string<delimiter(")content(Lamech)delimiter(")>operator(,)
+    string<delimiter(")content(Tubalcain)delimiter(")> operator(,) string<delimiter(")content(Lamech)delimiter(")>operator(,)
+    string<delimiter(")content(Enos)delimiter(")>      operator(,) string<delimiter(")content(Seth)delimiter(")>operator(,)
+operator(})
+
+reserved(while) ident(gets)
+    ident(chomp)
+    reserved(begin)
+        ident(print) global_variable($_)operator(,) string<delimiter(")content( )delimiter(")>
+    reserved(end) reserved(while) global_variable($_) operator(=) ident(father)operator([)global_variable($_)operator(])
+    ident(puts)
+reserved(end)
+
+ident(children) operator(=) operator({)operator(})
+ident(father)operator(.)ident(each) operator({) operator(|)ident(k)operator(,)ident(v)operator(|)
+    operator(()ident(children)operator([)ident(v)operator(]) operator(||=) operator([)operator(])operator(\)) operator(<<) ident(k)
+operator(})
+reserved(while) ident(gets)
+    ident(chomp)
+    ident(puts) string<delimiter(")inline<delimiter(#{)global_variable($_)delimiter(})>content( begat )inline<delimiter(#{)operator(()ident(children)operator([)global_variable($_)operator(]) operator(||) operator([)string<delimiter(')content(Nobody)delimiter(')>operator(])operator(\))operator(.)ident(join)operator(()string<delimiter(')content(, )delimiter(')>operator(\))delimiter(})>content(.)char(\\n)delimiter(")>
+reserved(end)
+
+ident(includes) operator(=) operator({)operator(})
+ident(files)operator(.)ident(each) operator({) operator(|)ident(f)operator(|)
+    reserved(begin)
+        reserved(for) ident(l) reserved(in) constant(IO)operator(.)ident(readlines)operator(()ident(f)operator(\))
+            reserved(next) reserved(unless) ident(l) operator(=)operator(~) regexp<delimiter(/)content(^)char(\\s)content(*#)char(\\s)content(*include)char(\\s)content(*<([^>]+\)>)delimiter(/)>
+            operator(()ident(includes)operator([)global_variable($1)operator(]) operator(||=) operator([)operator(])operator(\)) operator(<<) ident(f)
+        reserved(end)
+    reserved(rescue) constant(SystemCallError)
+        global_variable($stderr)operator(.)ident(puts) string<delimiter(")escape(#)global_variable($!)content( (skipping\))delimiter(")>
+    reserved(end)
+operator(})
+
+ident(include_free) operator(=) ident(includes)operator(.)ident(values)operator(.)ident(flatten)operator(.)ident(uniq) operator(-) ident(includes)operator(.)ident(keys)
+
+
+comment(# @@PLEAC@@_5.16)
+comment(# dutree - print sorted intented rendition of du output)
+comment(#% dutree)
+comment(#% dutree /usr)
+comment(#% dutree -a)
+comment(#% dutree -a /bin)
+
+comment(# The DuNode class collects all information about a directory,)
+comment(# and provides some convenience methods)
+reserved(class) class(DuNode)
+
+    ident(attr_reader) symbol(:name)
+    ident(attr_accessor) symbol(:size)
+    ident(attr_accessor) symbol(:kids)
+
+    reserved(def) method(initialize)operator(()ident(name)operator(\))
+        instance_variable(@name) operator(=) ident(name)
+        instance_variable(@kids) operator(=) operator([)operator(])
+        instance_variable(@size) operator(=) integer(0)
+    reserved(end)
+
+    comment(# support for sorting nodes with side)
+    reserved(def) method(size_compare)operator(()ident(node2)operator(\))
+        instance_variable(@size) operator(<=>) ident(node2)operator(.)ident(size)
+    reserved(end)
+
+    reserved(def) method(basename)
+        instance_variable(@name)operator(.)ident(sub)operator(()regexp<delimiter(/)content(.*)char(\\/)delimiter(/)>operator(,) string<delimiter(")delimiter(")>operator(\))
+    reserved(end)
+
+    comment(#returns substring before last "/", nil if not there)
+    reserved(def) method(parent)
+        ident(p) operator(=) instance_variable(@name)operator(.)ident(sub)operator(()regexp<delimiter(/)char(\\/)content([^)char(\\/)content(]+$)delimiter(/)>operator(,)string<delimiter(")delimiter(")>operator(\))
+        reserved(if) ident(p) operator(==) instance_variable(@name)
+            pre_constant(nil)
+        reserved(else)
+            ident(p)
+        reserved(end)
+    reserved(end)
+
+reserved(end)
+
+comment(# The DuTree does the acdtual work of)
+comment(# getting the input, parsing it, builging up a tree)
+comment(# and format it for output)
+reserved(class) class(Dutree)
+
+    ident(attr_reader) symbol(:topdir)
+
+    reserved(def) method(initialize)
+        instance_variable(@nodes) operator(=) constant(Hash)operator(.)ident(new)
+        instance_variable(@dirsizes) operator(=) constant(Hash)operator(.)ident(new)operator(()integer(0)operator(\))
+        instance_variable(@kids) operator(=) constant(Hash)operator(.)ident(new)operator(()operator([)operator(])operator(\))
+    reserved(end)
+
+    comment(# get a node by name, create it if it does not exist yet)
+    reserved(def) method(get_create_node)operator(()ident(name)operator(\))
+        reserved(if) instance_variable(@nodes)operator(.)ident(has_key?)operator(()ident(name)operator(\))
+            instance_variable(@nodes)operator([)ident(name)operator(])
+        reserved(else)
+            ident(node) operator(=) constant(DuNode)operator(.)ident(new)operator(()ident(name)operator(\))
+            instance_variable(@nodes)operator([)ident(name)operator(]) operator(=) ident(node)
+            ident(node)
+        reserved(end)
+    reserved(end)
+
+    comment(# run du, read in input, save sizes and kids)
+    comment(# stores last directory read in instance variable topdir)
+    reserved(def) method(input)operator(()ident(arguments)operator(\))
+        ident(name) operator(=) string<delimiter(")delimiter(")>
+        ident(cmd) operator(=) string<delimiter(")content(du )delimiter(")> operator(+) ident(arguments)operator(.)ident(join)operator(()string<delimiter(")content( )delimiter(")>operator(\))
+        constant(IO)operator(.)ident(popen)operator(()ident(cmd)operator(\)) operator({) operator(|)ident(pipe)operator(|)
+            ident(pipe)operator(.)ident(each) operator({) operator(|)ident(line)operator(|)
+                ident(size)operator(,) ident(name) operator(=) ident(line)operator(.)ident(chomp)operator(.)ident(split)operator(()regexp<delimiter(/)char(\\s)content(+)delimiter(/)>operator(,) integer(2)operator(\))
+                ident(node) operator(=) ident(get_create_node)operator(()ident(name)operator(\))
+                ident(node)operator(.)ident(size) operator(=) ident(size)operator(.)ident(to_i)
+                instance_variable(@nodes)operator([)ident(name)operator(]) operator(=) ident(node)
+                ident(parent) operator(=) ident(node)operator(.)ident(parent)
+                reserved(if) ident(parent)
+                    ident(get_create_node)operator(()ident(parent)operator(\))operator(.)ident(kids)operator(.)ident(push)operator(()ident(node)operator(\))
+                reserved(end)
+            operator(})
+        operator(})
+        instance_variable(@topdir) operator(=) instance_variable(@nodes)operator([)ident(name)operator(])
+    reserved(end)
+
+    comment(# figure out how much is taken in each directory)
+    comment(# that isn't stored in the subdirectories. Add a new)
+    comment(# fake kid called "." containing that much.)
+    reserved(def) method(get_dots)operator(()ident(node)operator(\))
+        ident(cursize) operator(=) ident(node)operator(.)ident(size)
+        reserved(for) ident(kid) reserved(in) ident(node)operator(.)ident(kids)
+            ident(cursize) operator(-=)  ident(kid)operator(.)ident(size)
+            ident(get_dots)operator(()ident(kid)operator(\))
+        reserved(end)
+        reserved(if) ident(node)operator(.)ident(size) operator(!=) ident(cursize)
+            ident(newnode) operator(=) ident(get_create_node)operator(()ident(node)operator(.)ident(name) operator(+) string<delimiter(")content(/.)delimiter(")>operator(\))
+            ident(newnode)operator(.)ident(size) operator(=) ident(cursize)
+            ident(node)operator(.)ident(kids)operator(.)ident(push)operator(()ident(newnode)operator(\))
+        reserved(end)
+    reserved(end)
+
+    comment(# recursively output everything)
+    comment(# passing padding and number width as well)
+    comment(# on recursive calls)
+    reserved(def) method(output)operator(()ident(node)operator(,) ident(prefix)operator(=)string<delimiter(")delimiter(")>operator(,) ident(width)operator(=)integer(0)operator(\))
+        ident(line) operator(=) ident(sprintf)operator(()string<delimiter(")content(%)inline<delimiter(#{)ident(width)delimiter(})>content(d %s)delimiter(")>operator(,) ident(node)operator(.)ident(size)operator(,) ident(node)operator(.)ident(basename)operator(\))
+        ident(puts)operator(()ident(prefix) operator(+) ident(line)operator(\))
+        ident(prefix) operator(+=) ident(line)operator(.)ident(sub)operator(()regexp<delimiter(/)char(\\d)content( )delimiter(/)>operator(,) string<delimiter(")content(| )delimiter(")>operator(\))
+        ident(prefix)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content([^|])delimiter(/)>operator(,) string<delimiter(")content( )delimiter(")>operator(\))
+        reserved(if) ident(node)operator(.)ident(kids)operator(.)ident(length) operator(>) integer(0)     comment(# not a bachelor node)
+            ident(kids) operator(=) ident(node)operator(.)ident(kids)
+            ident(kids)operator(.)ident(sort!) operator({) operator(|)ident(a)operator(,)ident(b)operator(|)
+                ident(b)operator(.)ident(size_compare)operator(()ident(a)operator(\))
+            operator(})
+            ident(width) operator(=) ident(kids)operator([)integer(0)operator(])operator(.)ident(size)operator(.)ident(to_s)operator(.)ident(length)
+            reserved(for) ident(kid) reserved(in) ident(kids)
+                ident(output)operator(()ident(kid)operator(,) ident(prefix)operator(,) ident(width)operator(\))
+            reserved(end)
+        reserved(end)
+    reserved(end)
+
+reserved(end)
+
+ident(tree) operator(=) constant(Dutree)operator(.)ident(new)
+ident(tree)operator(.)ident(input)operator(()pre_constant(ARGV)operator(\))
+ident(tree)operator(.)ident(get_dots)operator(()ident(tree)operator(.)ident(topdir)operator(\))
+ident(tree)operator(.)ident(output)operator(()ident(tree)operator(.)ident(topdir)operator(\))
+
+
+comment(# @@PLEAC@@_6.0)
+comment(# The verbose version are match, sub, gsub, sub! and gsub!;)
+comment(# pattern needs to be a Regexp object; it yields a MatchData)
+comment(# object.)
+ident(pattern)operator(.)ident(match)operator(()ident(string)operator(\))
+ident(string)operator(.)ident(sub)operator(()ident(pattern)operator(,) ident(replacement)operator(\))
+ident(string)operator(.)ident(gsub)operator(()ident(pattern)operator(,) ident(replacement)operator(\))
+comment(# As usual in Ruby, sub! does the same as sub but also modifies)
+comment(# the object, the same for gsub!/gsub.)
+
+comment(# Sugared syntax yields the position of the match (or nil if no)
+comment(# match\). Note that the object at the right of the operator needs)
+comment(# not to be a Regexp object (it can be a String\). The "dont)
+comment(# match" operator yields true or false.)
+ident(meadow) operator(=)operator(~) regexp<delimiter(/)content(sheep)delimiter(/)>   comment(# position of the match, nil if no match)
+ident(meadow) operator(!)operator(~) regexp<delimiter(/)content(sheep)delimiter(/)>   comment(# true if doesn't match, false if it does)
+comment(# There is no sugared version for the substitution)
+
+ident(meadow) operator(=)operator(~) regexp<delimiter(/)char(\\b)content(ovines?)char(\\b)delimiter(/)modifier(i)> reserved(and) ident(print) string<delimiter(")content(Here be sheep!)delimiter(")>
+
+ident(string) operator(=) string<delimiter(")content(good food)delimiter(")>
+ident(string)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(o*)delimiter(/)>operator(,) string<delimiter(')content(e)delimiter(')>operator(\))
+
+comment(# % echo ababacaca | ruby -ne 'puts $& if /(a|ba|b\)+(a|ac\)+/')
+comment(# ababa)
+
+comment(# The "global" (or "multiple"\) match is handled by String#scan)
+ident(scan) operator(()regexp<delimiter(/)content(()char(\\d)content(+\))delimiter(/)>operator(\)) operator({)
+    ident(puts) string<delimiter(")content(Found number )inline<delimiter(#{)global_variable($1)delimiter(})>delimiter(")>
+operator(})
+
+comment(# String#scan yields an Array if not used with a block)
+ident(numbers) operator(=) ident(scan)operator(()regexp<delimiter(/)char(\\d)content(+)delimiter(/)>operator(\))
+
+ident(digits) operator(=) string<delimiter(")content(123456789)delimiter(")>
+ident(nonlap) operator(=) ident(digits)operator(.)ident(scan)operator(()regexp<delimiter(/)content(()char(\\d)char(\\d)char(\\d)content(\))delimiter(/)>operator(\))
+ident(yeslap) operator(=) ident(digits)operator(.)ident(scan)operator(()regexp<delimiter(/)content((?=()char(\\d)char(\\d)char(\\d)content(\)\))delimiter(/)>operator(\))
+ident(puts) string<delimiter(")content(Non-overlapping:  )inline<delimiter(#{)ident(nonlap)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))delimiter(})>delimiter(")>
+ident(puts) string<delimiter(")content(Overlapping:      )inline<delimiter(#{)ident(yeslap)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))delimiter(})>delimiter(")>operator(;)
+comment(# Non-overlapping:  123 456 789)
+comment(# Overlapping:      123 234 345 456 567 678 789)
+
+ident(string) operator(=) string<delimiter(")content(And little lambs eat ivy)delimiter(")>
+ident(string) operator(=)operator(~) regexp<delimiter(/)content(l[^s]*s)delimiter(/)>
+ident(puts) string<delimiter(")content(()escape(#)global_variable($`)content(\) ()escape(#)global_variable($&)content(\) ()escape(#)global_variable($')content(\))delimiter(")>
+comment(# (And \) (little lambs\) ( eat ivy\))
+
+
+comment(# @@PLEAC@@_6.1)
+comment(# Ruby doesn't have the same problem:)
+ident(dst) operator(=) ident(src)operator(.)ident(sub)operator(()string<delimiter(')content(this)delimiter(')>operator(,) string<delimiter(')content(that)delimiter(')>operator(\))
+
+ident(progname) operator(=) global_variable($0)operator(.)ident(sub)operator(()string<delimiter(')content(^.*/)delimiter(')>operator(,) string<delimiter(')delimiter(')>operator(\))
+
+ident(bindirs) operator(=) string<delimiter(%w()content(/usr/bin /bin /usr/local/bin)delimiter(\))>
+ident(libdirs) operator(=) ident(bindirs)operator(.)ident(map) operator({) operator(|)ident(l)operator(|) ident(l)operator(.)ident(sub)operator(()string<delimiter(')content(bin)delimiter(')>operator(,) string<delimiter(')content(lib)delimiter(')>operator(\)) operator(})
+
+
+comment(# @@PLEAC@@_6.3)
+regexp<delimiter(/)char(\\S)content(+)delimiter(/)>               comment(# as many non-whitespace bytes as possible)
+regexp<delimiter(/)content([A-Za-z'-]+)delimiter(/)>       comment(# as many letters, apostrophes, and hyphens)
+
+regexp<delimiter(/)char(\\b)content(([A-Za-z]+\))char(\\b)delimiter(/)>   comment(# usually best)
+regexp<delimiter(/)char(\\s)content(([A-Za-z]+\))char(\\s)delimiter(/)>   comment(# fails at ends or w/ punctuation)
+
+
+comment(# @@PLEAC@@_6.4)
+ident(require) string<delimiter(')content(socket)delimiter(')>
+ident(str) operator(=) string<delimiter(')content(www.ruby-lang.org and www.rubygarden.org)delimiter(')>
+ident(re) operator(=) regexp<delimiter(/)content(
+      (               # capture the hostname in $1
+        (?:           # these parens for grouping only
+          (?! [-_] \)  # lookahead for neither underscore nor dash
+          [)char(\\w)content(-] +     # hostname component
+          )char(\\.)content(          # and the domain dot
+        \) +           # now repeat that whole thing a bunch of times
+        [A-Za-z]      # next must be a letter
+        [)char(\\w)content(-] +       # now trailing domain part
+      \)               # end of $1 capture
+     )delimiter(/)modifier(x)>               comment(# /x for nice formatting)
+
+ident(str)operator(.)ident(gsub!) ident(re) reserved(do)       comment(# pass a block to execute replacement)
+    ident(host) operator(=) constant(TCPsocket)operator(.)ident(gethostbyname)operator(()global_variable($1)operator(\))
+    string<delimiter(")inline<delimiter(#{)global_variable($1)delimiter(})>content( [)inline<delimiter(#{)ident(host)operator([)integer(3)operator(])delimiter(})>content(])delimiter(")>
+reserved(end)
+
+ident(puts) ident(str)
+comment(#-----------------------------)
+comment(# to match whitespace or #-characters in an extended re you need to escape)
+comment(# them.)
+
+ident(foo) operator(=) integer(42)
+ident(str) operator(=) string<delimiter(')content(blah #foo# blah)delimiter(')>
+ident(str)operator(.)ident(gsub!) regexp<delimiter(%r/)content(       # replace
+              )char(\\#)content(    #   a pound sign
+              ()char(\\w)content(+\) #   the variable name
+              )char(\\#)content(    #   another pound sign
+          )delimiter(/)modifier(x)> reserved(do)
+              ident(eval) global_variable($1)           comment(# with the value of a local variable)
+          reserved(end)
+ident(puts) ident(str)  comment(# => blah 42 blah)
+
+
+comment(# @@PLEAC@@_6.5)
+comment(# The 'g' modifier doesn't exist in Ruby, a regexp can't be used)
+comment(# directly in a while loop; instead, use String#scan { |match| .. } )
+ident(fish) operator(=) string<delimiter(')content(One fish two fish red fish blue fish)delimiter(')>
+constant(WANT) operator(=) integer(3)
+ident(count) operator(=) integer(0)
+ident(fish)operator(.)ident(scan)operator(()regexp<delimiter(/)content(()char(\\w)content(+\))char(\\s)content(+fish)char(\\b)delimiter(/)modifier(i)>operator(\)) operator({)
+    reserved(if) operator(()ident(count) operator(+=) integer(1)operator(\)) operator(==) constant(WANT)
+        ident(puts) string<delimiter(")content(The third fish is a )inline<delimiter(#{)global_variable($1)delimiter(})>content( one.)delimiter(")>
+    reserved(end)
+operator(})
+
+reserved(if) ident(fish) operator(=)operator(~) regexp<delimiter(/)content((?:)char(\\w)content(+)char(\\s)content(+fish)char(\\s)content(+\){2}()char(\\w)content(+\))char(\\s)content(+fish)delimiter(/)modifier(i)>
+    ident(puts) string<delimiter(")content(The third fish is a )inline<delimiter(#{)global_variable($1)delimiter(})>content( one.)delimiter(")>
+reserved(end)
+
+ident(pond) operator(=) string<delimiter(')content(One fish two fish red fish blue fish)delimiter(')>
+comment(# String#scan without a block gives an array of matches, each match)
+comment(# being an array of all the specified groups)
+ident(colors) operator(=) ident(pond)operator(.)ident(scan)operator(()regexp<delimiter(/)content(()char(\\w)content(+\))char(\\s)content(+fish)char(\\b)delimiter(/)modifier(i)>operator(\))operator(.)ident(flatten)  comment(# get all matches)
+ident(color)  operator(=) ident(colors)operator([)integer(2)operator(])                          comment(# then the one we want)
+comment(# or without a temporary array)
+ident(color) operator(=) ident(pond)operator(.)ident(scan)operator(()regexp<delimiter(/)content(()char(\\w)content(+\))char(\\s)content(+fish)char(\\b)delimiter(/)modifier(i)>operator(\))operator(.)ident(flatten)operator([)integer(2)operator(])  comment(# just grab element 3)
+ident(puts) string<delimiter(")content(The third fish in the pond is )inline<delimiter(#{)ident(color)delimiter(})>content(.)delimiter(")>
+
+ident(count) operator(=) integer(0)
+ident(fishes) operator(=) string<delimiter(')content(One fish two fish red fish blue fish)delimiter(')>
+ident(evens) operator(=) ident(fishes)operator(.)ident(scan)operator(()regexp<delimiter(/)content(()char(\\w)content(+\))char(\\s)content(+fish)char(\\b)delimiter(/)modifier(i)>operator(\))operator(.)ident(select) operator({) operator(()ident(count)operator(+=)integer(1)operator(\)) operator(%) integer(2) operator(==) integer(0) operator(})
+ident(print) string<delimiter(")content(Even numbered fish are )inline<delimiter(#{)ident(evens)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))delimiter(})>content(.)delimiter(")>
+
+ident(count) operator(=) integer(0)
+ident(fishes)operator(.)ident(gsub)operator(()regexp<delimiter(/)content(
+   )char(\\b)content(               # makes next )char(\\w)content( more efficient
+   ( )char(\\w)content(+ \)          # this is what we)char(\\')content(ll be changing
+   (
+     )char(\\s)content(+ fish )char(\\b)content(
+   \)
+            )delimiter(/)modifier(x)>operator(\)) operator({)
+    reserved(if) operator(()ident(count) operator(+=) integer(1)operator(\)) operator(==) integer(4)
+        string<delimiter(')content(sushi)delimiter(')> operator(+) global_variable($2)
+    reserved(else)
+        global_variable($1) operator(+) global_variable($2)
+    reserved(end)
+operator(})
+
+ident(pond) operator(=) string<delimiter(')content(One fish two fish red fish blue fish swim here.)delimiter(')>
+ident(puts) string<delimiter(")content(Last fish is )inline<delimiter(#{)ident(pond)operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\b)content(()char(\\w)content(+\))char(\\s)content(+fish)char(\\b)delimiter(/)modifier(i)>operator(\))operator(.)ident(flatten)operator([)integer(-1)operator(])delimiter(})>delimiter(")>
+
+regexp<delimiter(/)content(
+    A               # find some pattern A
+    (?!             # mustn)char(\\')content(t be able to find
+        .*          # something
+        A           # and A
+    \)
+    $               # through the end of the string
+)delimiter(/)modifier(x)>
+
+comment(# The "s" perl modifier is "m" in Ruby (not very nice since there is)
+comment(# also an "m" in perl..\))
+ident(pond) operator(=) string<delimiter(")content(One fish two fish red fish blue fish swim here.)delimiter(")>
+reserved(if) operator(()ident(pond) operator(=)operator(~) regexp<delimiter(/)content(
+                    )char(\\b)content(  (  )char(\\w)content(+\) )char(\\s)content(+ fish )char(\\b)content(
+                (?! .* )char(\\b)content( fish )char(\\b)content( \)
+            )delimiter(/)modifier(mix)>operator(\))
+    ident(puts) string<delimiter(")content(Last fish is )inline<delimiter(#{)global_variable($1)delimiter(})>content(.)delimiter(")>
+reserved(else)
+    ident(puts) string<delimiter(")content(Failed!)delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_6.6)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# killtags - very bad html killer)
+global_variable($/) operator(=) pre_constant(nil)operator(;)                              comment(# each read is whole file)
+reserved(while) ident(file) operator(=) ident(gets)operator(()operator(\)) reserved(do)
+    ident(file)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content(<.*?>)delimiter(/)modifier(m)>operator(,)string<delimiter(')delimiter(')>operator(\))operator(;)           comment(# strip tags (terribly\))
+    ident(puts) ident(file)                          comment(# print file to STDOUT)
+reserved(end)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(#headerfy - change certain chapter headers to html)
+global_variable($/) operator(=) string<delimiter(')delimiter(')>
+reserved(while) ident(file) operator(=) ident(gets)operator(()operator(\)) reserved(do)
+    ident(pattern) operator(=) regexp<delimiter(/)content(
+                  )char(\\A)content(                   # start of record
+                  (                    # capture in $1
+                      Chapter          # text string
+                      )char(\\s)content(+              # mandatory whitespace
+                      )char(\\d)content(+              # decimal number
+                      )char(\\s)content(*              # optional whitespace
+                      :                # a real colon
+                      . *              # anything not a newline till end of line
+                  \)
+               )delimiter(/)modifier(x)>
+    ident(puts) ident(file)operator(.)ident(gsub)operator(()ident(pattern)operator(,)string<delimiter(')content(<H1>)content(\\1)content(</H1>)delimiter(')>operator(\))
+reserved(end)
+comment(#-----------------------------)
+comment(#% ruby -00pe "gsub!(/\\A(Chapter\\s+\\d+\\s*:.*\)/,'<H1>\\1</H1>'\)" datafile)
+
+comment(#!/usr/bin/ruby -w)
+comment(#-----------------------------)
+reserved(for) ident(file) reserved(in) pre_constant(ARGV)
+    ident(file) operator(=) constant(File)operator(.)ident(open)operator(()pre_constant(ARGV)operator(.)ident(shift)operator(\))
+    reserved(while) ident(file)operator(.)ident(gets)operator(()string<delimiter(')delimiter(')>operator(\)) reserved(do)             comment(# each read is a paragraph)
+        ident(print) string<delimiter(")content(chunk )inline<delimiter(#{)global_variable($.)delimiter(})>content( in $ARGV has <<)inline<delimiter(#{)global_variable($1)delimiter(})>content(>>)char(\\n)delimiter(")> reserved(while) regexp<delimiter(/)content(^START(.*?\)^END)delimiter(/)modifier(m)>
+    reserved(end)                                comment(# /m activates the multiline mode)
+reserved(end)
+comment(#-----------------------------)
+
+comment(# @@PLEAC@@_6.7)
+comment(#-----------------------------)
+global_variable($/) operator(=) pre_constant(nil)operator(;)
+ident(file) operator(=) constant(File)operator(.)ident(open)operator(()string<delimiter(")content(datafile)delimiter(")>operator(\))
+ident(chunks) operator(=) ident(file)operator(.)ident(gets)operator(.)ident(split)operator(()regexp<delimiter(/)content(pattern)delimiter(/)>operator(\))
+comment(#-----------------------------)
+comment(# .Ch, .Se and .Ss divide chunks of STDIN)
+ident(chunks) operator(=) ident(gets)operator(()pre_constant(nil)operator(\))operator(.)ident(split)operator(()regexp<delimiter(/)content(^)char(\\.)content((Ch|Se|Ss\)$)delimiter(/)>operator(\))
+ident(print) string<delimiter(")content(I read )inline<delimiter(#{)ident(chunks)operator(.)ident(size)delimiter(})>content( chunks.)char(\\n)delimiter(")>
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_6.8)
+reserved(while) ident(gets)
+    reserved(if) operator(~)regexp<delimiter(/)content(BEGIN)delimiter(/)> operator(..) operator(~)regexp<delimiter(/)content(END)delimiter(/)>
+        comment(# line falls between BEGIN and END inclusive)
+    reserved(end)
+reserved(end)
+
+reserved(while) ident(gets)
+    reserved(if) operator(()global_variable($.) operator(==) ident(firstnum)operator(\)) operator(..) operator(()global_variable($.) operator(==) ident(lastnum)operator(\))
+        comment(# operate between firstnum and lastnum line number)
+    reserved(end)
+reserved(end)
+
+comment(# in ruby versions prior to 1.8, the above two conditional)
+comment(# expressions could be shortened to:)
+comment(#     if /BEGIN/ .. /END/)
+comment(# and)
+comment(#     if firstnum .. lastnum)
+comment(# but these now only work this way from the command line  )
+
+comment(#-----------------------------)
+
+reserved(while) ident(gets)
+    reserved(if) operator(~)regexp<delimiter(/)content(BEGIN)delimiter(/)> operator(...) operator(~)regexp<delimiter(/)content(END)delimiter(/)>
+        comment(# line falls between BEGIN and END on different lines)
+    reserved(end)
+reserved(end)
+
+reserved(while) ident(gets)
+    reserved(if) operator(()global_variable($.) operator(==) ident(first)operator(\)) operator(...) operator(()global_variable($.) operator(==) ident(last)operator(\))
+        comment(# operate between first and last line number on different lines)
+    reserved(end)
+reserved(end)
+
+comment(#-----------------------------)
+comment(# command-line to print lines 15 through 17 inclusive (see below\))
+ident(ruby) operator(-)ident(ne) string<delimiter(')content(print if 15 .. 17)delimiter(')> ident(datafile)
+
+comment(# print out all <XMP> .. </XMP> displays from HTML doc)
+reserved(while) ident(gets)
+    ident(print) reserved(if) operator(~)regexp<delimiter(%r#)content(<XMP>)delimiter(#)modifier(i)> operator(..) operator(~)regexp<delimiter(%r#)content(</XMP>)delimiter(#)modifier(i)>operator(;)
+reserved(end)
+    
+comment(# same, but as shell command)
+comment(# ruby -ne 'print if %r#<XMP>#i .. %r#</XMP>#i' document.html)
+comment(#-----------------------------)
+comment(# ruby -ne 'BEGIN { $top=3; $bottom=5 }; \\)
+comment(#     print if $top .. $bottom' /etc/passwd                 #  FAILS)
+comment(# ruby -ne 'BEGIN { $top=3; $bottom=5 }; \\)
+comment(#     print if $. == $top .. $. ==  $bottom' /etc/passwd    # works)
+comment(# ruby -ne 'print if 3 .. 5' /etc/passwd                    # also works)
+comment(#-----------------------------)
+ident(print) reserved(if) operator(~)regexp<delimiter(/)content(begin)delimiter(/)> operator(..) operator(~)regexp<delimiter(/)content(end)delimiter(/)>operator(;)
+ident(print) reserved(if) operator(~)regexp<delimiter(/)content(begin)delimiter(/)> operator(...) operator(~)regexp<delimiter(/)content(end)delimiter(/)>operator(;)
+comment(#-----------------------------)
+reserved(while) ident(gets)
+    global_variable($in_header) operator(=) global_variable($.) operator(==) integer(1)  operator(..) operator(~)regexp<delimiter(/)content(^$)delimiter(/)> operator(?) pre_constant(true) operator(:) pre_constant(false)
+    global_variable($in_body)   operator(=) operator(~)regexp<delimiter(/)content(^$)delimiter(/)> operator(..) pre_constant(ARGF)operator(.)ident(eof) operator(?) pre_constant(true) operator(:) pre_constant(false)
+reserved(end)
+comment(#-----------------------------)
+ident(seen) operator(=) operator({)operator(})
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    reserved(next) reserved(unless) ident(line) operator(=)operator(~) regexp<delimiter(/)content(^From:?)char(\\s)delimiter(/)modifier(i)> operator(..) ident(line) operator(=)operator(~) regexp<delimiter(/)content(^$)delimiter(/)>operator(;)
+    ident(line)operator(.)ident(scan)operator(()regexp<delimiter(%r/)content(([^<>(\),;)char(\\s)content(]+)char(\\@)content([^<>(\),;)char(\\s)content(]+\))delimiter(/)>operator(\))operator(.)ident(each) reserved(do) operator(|)ident(addr)operator(|)
+        ident(puts) ident(addr) reserved(unless) ident(seen)operator([)ident(addr)operator(])
+        ident(seen)operator([)ident(addr)operator(]) operator(||=) integer(1) 
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_6.9)
+reserved(def) method(glob2pat)operator(()ident(globstr)operator(\))
+    ident(patmap) operator(=) operator({)
+        string<delimiter(')content(*)delimiter(')> operator(=)operator(>) string<delimiter(')content(.*)delimiter(')>operator(,)
+        string<delimiter(')content(?)delimiter(')> operator(=)operator(>) string<delimiter(')content(.)delimiter(')>operator(,)
+        string<delimiter(')content([)delimiter(')> operator(=)operator(>) string<delimiter(')content([)delimiter(')>operator(,)
+        string<delimiter(')content(])delimiter(')> operator(=)operator(>) string<delimiter(')content(])delimiter(')>operator(,)
+    operator(})
+    ident(globstr)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content((.\))delimiter(/)>operator(\)) operator({) operator(|)ident(c)operator(|) ident(patmap)operator([)ident(c)operator(]) operator(||) constant(Regexp)operator(::)ident(escape)operator(()ident(c)operator(\)) operator(})
+    string<delimiter(')content(^)delimiter(')> operator(+) ident(globstr) operator(+) string<delimiter(')content($)delimiter(')>
+reserved(end)
+
+
+comment(# @@PLEAC@@_6.10)
+comment(# avoid interpolating patterns like this if the pattern)
+comment(# isn't going to change:)
+ident(pattern) operator(=) pre_constant(ARGV)operator(.)ident(shift)
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(print) ident(line) reserved(if) ident(line) operator(=)operator(~) regexp<delimiter(/)inline<delimiter(#{)ident(pattern)delimiter(})>delimiter(/)>
+reserved(end)
+
+comment(# the above creates a new regex each iteration. Instead,)
+comment(# use the /o modifier so the regex is compiled only once)
+
+ident(pattern) operator(=) pre_constant(ARGV)operator(.)ident(shift)
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(print) ident(line) reserved(if) ident(line) operator(=)operator(~) regexp<delimiter(/)inline<delimiter(#{)ident(pattern)delimiter(})>delimiter(/)modifier(o)>
+reserved(end)
+
+comment(#-----------------------------)
+
+comment(#!/usr/bin/ruby)
+comment(# popgrep1 - grep for abbreviations of places that say "pop")
+comment(# version 1: slow but obvious way)
+ident(popstates) operator(=) string<delimiter(%w()content(CO ON MI WI MN)delimiter(\))>
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(popstates)operator(.)ident(each) reserved(do) operator(|)ident(state)operator(|)
+        reserved(if) ident(line) operator(=)operator(~) regexp<delimiter(/)char(\\b)inline<delimiter(#{)ident(state)delimiter(})>char(\\b)delimiter(/)>
+            ident(print) ident(line)
+            ident(last)
+        reserved(end)
+    reserved(end)
+reserved(end)
+
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby)
+comment(# popgrep2 - grep for abbreviations of places that say "pop")
+comment(# version 2: eval strings; fast but hard to quote)
+ident(popstates) operator(=) string<delimiter(%w()content(CO ON MI WI MN)delimiter(\))>
+ident(code) operator(=) string<delimiter(")content(ARGF.each do |line|)char(\\n)delimiter(")>
+ident(popstates)operator(.)ident(each) reserved(do) operator(|)ident(state)operator(|)
+    ident(code) operator(+=) string<delimiter(")char(\\t)content(if line =~ /)char(\\\\)content(b)inline<delimiter(#{)ident(state)delimiter(})>char(\\\\)content(b/; print(line\); next; end)char(\\n)delimiter(")>
+reserved(end)
+ident(code) operator(+=) string<delimiter(")content(end)char(\\n)delimiter(")>
+ident(print) string<delimiter(")content(CODE IS)char(\\n)content(---)char(\\n)inline<delimiter(#{)ident(code)delimiter(})>char(\\n)content(---)char(\\n)delimiter(")> reserved(if) pre_constant(false) comment(# turn on for debugging)
+ident(eval) ident(code)
+
+comment(# CODE IS)
+comment(# ---)
+comment(# ARGF.each do |line|)
+comment(#         if line =~ /\\bCO\\b/; print(line\); next; end)
+comment(#         if line =~ /\\bON\\b/; print(line\); next; end)
+comment(#         if line =~ /\\bMI\\b/; print(line\); next; end)
+comment(#         if line =~ /\\bWI\\b/; print(line\); next; end)
+comment(#         if line =~ /\\bMN\\b/; print(line\); next; end)
+comment(# end)
+comment(# )
+comment(# ---)
+
+comment(## alternatively, the same idea as above but compiling )
+comment(## to a case statement: (not in perlcookbook\))
+comment(#!/usr/bin/ruby -w)
+comment(# popgrep2.5 - grep for abbreviations of places that say "pop")
+comment(# version 2.5: eval strings; fast but hard to quote)
+ident(popstates) operator(=) string<delimiter(%w()content(CO ON MI WI MN)delimiter(\))>
+ident(code) operator(=) string<delimiter(")content(ARGF.each do |line|)char(\\n)content(    case line)char(\\n)delimiter(")>
+ident(popstates)operator(.)ident(each) reserved(do) operator(|)ident(state)operator(|)
+    ident(code) operator(+=) string<delimiter(")content(        when /)char(\\\\)content(b)inline<delimiter(#{)ident(state)delimiter(})>char(\\\\)content(b/ : print line)char(\\n)delimiter(")>
+reserved(end)
+ident(code) operator(+=) string<delimiter(")content(    end)char(\\n)content(end)char(\\n)delimiter(")>
+ident(print) string<delimiter(")content(CODE IS)char(\\n)content(---)char(\\n)inline<delimiter(#{)ident(code)delimiter(})>char(\\n)content(---)char(\\n)delimiter(")> reserved(if) pre_constant(false) comment(# turn on for debugging)
+ident(eval) ident(code)
+
+comment(# CODE IS)
+comment(# ---)
+comment(# ARGF.each do |line|)
+comment(#     case line)
+comment(#         when /\\bCO\\b/ : print line)
+comment(#         when /\\bON\\b/ : print line)
+comment(#         when /\\bMI\\b/ : print line)
+comment(#         when /\\bWI\\b/ : print line)
+comment(#         when /\\bMN\\b/ : print line)
+comment(#     end)
+comment(# end)
+comment(# )
+comment(# ---)
+
+comment(# Note: (above\) Ruby 1.8+ allows the 'when EXP : EXPR' on one line)
+comment(# with the colon separator.)
+
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby)
+comment(# popgrep3 - grep for abbreviations of places that say "pop")
+comment(# version3: build a match_any function)
+ident(popstates) operator(=) string<delimiter(%w()content(CO ON MI WI MN)delimiter(\))>
+ident(expr) operator(=) ident(popstates)operator(.)ident(map)operator({)operator(|)ident(e)operator(|)string<delimiter(")content(line =~ /)char(\\\\)content(b)inline<delimiter(#{)ident(e)delimiter(})>char(\\\\)content(b/)delimiter(")>operator(})operator(.)ident(join)operator(()string<delimiter(')content(||)delimiter(')>operator(\))
+ident(eval) string<delimiter(")content(def match_any(line\); )inline<delimiter(#{)ident(expr)delimiter(})>content(;end)delimiter(")>
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(print) ident(line) reserved(if) ident(match_any)operator(()ident(line)operator(\))
+reserved(end)
+comment(#-----------------------------)
+
+comment(##  building a match_all function is a trivial)
+comment(##  substitution of && for ||)
+comment(##  here is a generalized example:)
+comment(#!/usr/bin/ruby -w)
+comment(## grepauth - print lines that mention both foo and bar)
+reserved(class) class(MultiMatch) 
+    reserved(def) method(initialize)operator(()operator(*)ident(patterns)operator(\))
+        ident(_any) operator(=) ident(build_match)operator(()string<delimiter(')content(||)delimiter(')>operator(,)ident(patterns)operator(\))
+        ident(_all) operator(=) ident(build_match)operator(()string<delimiter(')content(&&)delimiter(')>operator(,)ident(patterns)operator(\))
+        ident(eval) string<delimiter(")content(def match_any(line\);)inline<delimiter(#{)ident(_any)delimiter(})>content(;end)char(\\n)delimiter(")>
+        ident(eval) string<delimiter(")content(def match_all(line\);)inline<delimiter(#{)ident(_all)delimiter(})>content(;end)char(\\n)delimiter(")>
+      reserved(end)
+    reserved(def) method(build_match)operator(()ident(sym)operator(,)ident(args)operator(\))
+        ident(args)operator(.)ident(map)operator({)operator(|)ident(e)operator(|)string<delimiter(")content(line =~ /)inline<delimiter(#{)ident(e)delimiter(})>content(/)delimiter(")>operator(})operator(.)ident(join)operator(()ident(sym)operator(\))
+    reserved(end)
+reserved(end)
+
+ident(mm) operator(=) constant(MultiMatch)operator(.)ident(new)operator(()string<delimiter(')content(foo)delimiter(')>operator(,)string<delimiter(')content(bar)delimiter(')>operator(\))
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(print) ident(line) reserved(if) ident(mm)operator(.)ident(match_all)operator(()ident(line)operator(\))
+reserved(end)
+comment(#-----------------------------)
+
+comment(#!/usr/bin/ruby)
+comment(# popgrep4 - grep for abbreviations of places that say "pop")
+comment(# version4: pretty fast, but simple: compile all re's first:)
+ident(popstates) operator(=) string<delimiter(%w()content(CO ON MI WI MN)delimiter(\))>
+ident(popstates) operator(=) ident(popstates)operator(.)ident(map)operator({)operator(|)ident(re)operator(|) regexp<delimiter(%r/)char(\\b)inline<delimiter(#{)ident(re)delimiter(})>char(\\b)delimiter(/)>operator(})
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(popstates)operator(.)ident(each) reserved(do) operator(|)ident(state_re)operator(|)
+        reserved(if) ident(line) operator(=)operator(~) ident(state_re)
+            ident(print) ident(line)
+            reserved(break)
+        reserved(end)
+    reserved(end)
+reserved(end)
+
+comment(## speeds trials on the jargon file(412\): 26006 lines, 1.3MB)
+comment(## popgrep1   => 7.040s)
+comment(## popgrep2   => 0.656s)
+comment(## popgrep2.5 => 0.633s)
+comment(## popgrep3   => 0.675s)
+comment(## popgrep4   => 1.027s)
+
+comment(# unless speed is criticial, the technique in popgrep4 is a)
+comment(# reasonable balance between speed and logical simplicity.)
+
+
+comment(# @@PLEAC@@_6.11)
+reserved(begin)
+    ident(print) string<delimiter(")content(Pattern? )delimiter(")>
+    ident(pat) operator(=) global_variable($stdin)operator(.)ident(gets)operator(.)ident(chomp)
+    constant(Regexp)operator(.)ident(new)operator(()ident(pat)operator(\))
+reserved(rescue) 
+    ident(warn) string<delimiter(")content(Invalid Pattern)delimiter(")>
+    reserved(retry)
+reserved(end)
+
+
+comment(# @@PLEAC@@_6.13)
+comment(# uses the 'amatch' extension found on:)
+comment(# http://raa.ruby-lang.org/project/amatch/)
+ident(require) string<delimiter(')content(amatch)delimiter(')>
+ident(matcher) operator(=) constant(Amatch)operator(.)ident(new)operator(()string<delimiter(')content(balast)delimiter(')>operator(\))
+comment(#$relative, $distance = 0, 1)
+constant(File)operator(.)ident(open)operator(()string<delimiter(')content(/usr/share/dict/words)delimiter(')>operator(\))operator(.)ident(each_line) reserved(do) operator(|)ident(line)operator(|)
+    ident(print) ident(line) reserved(if) ident(matcher)operator(.)ident(search)operator(()ident(line)operator(\)) operator(<=) integer(1)
+reserved(end)
+comment(__END__
+)comment(#CODE)
+ident(ballast)
+ident(ballasts)
+ident(balustrade)
+ident(balustrades)
+ident(blast)
+ident(blasted)
+ident(blaster)
+ident(blasters)
+ident(blasting)
+ident(blasts)
+
+
+comment(# @@PLEAC@@_6.14)
+ident(str)operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\G)content(()char(\\d)content(\))delimiter(/)>operator(\))operator(.)ident(each) reserved(do) operator(|)ident(token)operator(|)
+    ident(puts) string<delimiter(")content(found )inline<delimiter(#{)ident(token)delimiter(})>delimiter(")>
+reserved(end)
+comment(#-----------------------------)
+ident(n) operator(=) string<delimiter(")content(   49 here)delimiter(")>
+ident(n)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\G)content( )delimiter(/)>operator(,)string<delimiter(')content(0)delimiter(')>operator(\))
+ident(puts) ident(n)
+comment(#-----------------------------)
+ident(str) operator(=) string<delimiter(")content(3,4,5,9,120)delimiter(")>
+ident(str)operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\G)content(,?()char(\\d)content(+\))delimiter(/)>operator(\))operator(.)ident(each) reserved(do) operator(|)ident(num)operator(|)
+    ident(puts) string<delimiter(")content(Found number: )inline<delimiter(#{)ident(num)delimiter(})>delimiter(")>
+reserved(end)
+comment(#-----------------------------)
+comment(# Ruby doesn't have the String.pos or a /c re modifier like Perl )
+comment(# But it does have StringScanner in the standard library (strscn\))
+comment(# which allows similar functionality:)
+
+ident(require) string<delimiter(')content(strscan)delimiter(')>
+ident(text) operator(=) string<delimiter(')content(the year 1752 lost 10 days on the 3rd of September)delimiter(')>
+ident(sc) operator(=) constant(StringScanner)operator(.)ident(new)operator(()ident(text)operator(\))
+reserved(while) ident(sc)operator(.)ident(scan)operator(()regexp<delimiter(/)content(.*?()char(\\d)content(+\))delimiter(/)>operator(\))
+    ident(print) string<delimiter(")content(found: )inline<delimiter(#{)ident(sc)operator([)integer(1)operator(])delimiter(})>char(\\n)delimiter(")>   
+reserved(end)
+reserved(if) ident(sc)operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\S)content(+)delimiter(/)>operator(\))
+    ident(puts) string<delimiter(")content(Found )inline<delimiter(#{)ident(sc)operator([)integer(0)operator(])delimiter(})>content( after last number)delimiter(")>
+reserved(end)
+comment(#-----------------------------)
+comment(# assuming continuing from above:)
+ident(puts) string<delimiter(")content(The position in 'text' is: )inline<delimiter(#{)ident(sc)operator(.)ident(pos)delimiter(})>delimiter(")>
+ident(sc)operator(.)ident(pos) operator(=) integer(30)
+ident(puts) string<delimiter(")content(The position in 'text' is: )inline<delimiter(#{)ident(sc)operator(.)ident(pos)delimiter(})>delimiter(")>
+
+
+comment(# @@PLEAC@@_6.15)
+comment(#-----------------------------)
+comment(# greedy pattern)
+ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content(<.*>)delimiter(/)modifier(m)>operator(,)string<delimiter(')delimiter(')>operator(\))   comment(# not good)
+
+comment(# non-greedy (minimal\) pattern)
+ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content(<.*?>)delimiter(/)modifier(m)>operator(,)string<delimiter(')delimiter(')>operator(\))   comment(# not great)
+
+
+comment(#-----------------------------)
+comment(#<b><i>this</i> and <i>that</i> are important</b> Oh, <b><i>me too!</i></b>)
+comment(#-----------------------------)
+regexp<delimiter(%r{)content( <b><i>(.*?\)</i></b> )delimiter(})modifier(mx)>
+comment(#-----------------------------)
+regexp<delimiter(%r/)content(BEGIN((?:(?!BEGIN\).\)*\)END)delimiter(/)>
+comment(#-----------------------------)
+regexp<delimiter(%r{)content( <b><i>(  (?: (?!</b>|</i>\). \)*  \) </i></b> )delimiter(})modifier(mx)>
+comment(#-----------------------------)
+regexp<delimiter(%r{)content( <b><i>(  (?: (?!</[ib]>\). \)*  \) </i></b> )delimiter(})modifier(mx)>
+comment(#-----------------------------)
+regexp<delimiter(%r{)content(
+    <b><i> 
+    [^<]*  # stuff not possibly bad, and not possibly the end.
+    (?:
+ # at this point, we can have '<' if not part of something bad
+     (?!  </?[ib]>  \)   # what we can't have
+     <                  # okay, so match the '<'
+     [^<]*              # and continue with more safe stuff
+    \) *
+    </i></b>
+ )delimiter(})modifier(mx)>
+
+
+comment(# @@PLEAC@@_6.16)
+comment(#-----------------------------)
+global_variable($/) operator(=) string<delimiter(")delimiter(")>
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(para)operator(|)
+    ident(para)operator(.)ident(scan) regexp<delimiter(%r/)content(
+                  )char(\\b)content(     # start at word boundary
+                  ()char(\\S)content(+\)  # find chunk of non-whitespace
+                  )char(\\b)content(     # until a word boundary
+                  (      
+                    )char(\\s)content(+  # followed by whitespace
+                    )char(\\1)content(   # and that same chunk again
+                    )char(\\b)content(   # and a word boundary
+                  \) +    # one or more times
+                )delimiter(/)modifier(xi)> reserved(do)
+        ident(puts) string<delimiter(")content(dup word ')inline<delimiter(#{)global_variable($1)delimiter(})>content(' at paragraph )inline<delimiter(#{)global_variable($.)delimiter(})>delimiter(")> 
+    reserved(end)
+reserved(end)
+comment(#-----------------------------)
+ident(astr) operator(=) string<delimiter(')content(nobody)delimiter(')>
+ident(bstr) operator(=) string<delimiter(')content(bodysnatcher)delimiter(')>
+reserved(if) string<delimiter(")inline<delimiter(#{)ident(astr)delimiter(})>content( )inline<delimiter(#{)ident(bstr)delimiter(})>delimiter(")> operator(=)operator(~) regexp<delimiter(/)content(^()char(\\w)content(+\)()char(\\w)content(+\) )char(\\2)content(()char(\\w)content(+\)$)delimiter(/)>
+    ident(print) string<delimiter(")inline<delimiter(#{)global_variable($2)delimiter(})>content( overlaps in )inline<delimiter(#{)global_variable($1)delimiter(})>content(-)inline<delimiter(#{)global_variable($2)delimiter(})>content(-)inline<delimiter(#{)global_variable($3)delimiter(})>delimiter(")>
+reserved(end)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# prime_pattern -- find prime factors of argument using patterns)
+pre_constant(ARGV) operator(<<) integer(180)
+ident(cap) operator(=) string<delimiter(')content(o)delimiter(')> operator(*) pre_constant(ARGV)operator(.)ident(shift)
+reserved(while) ident(cap) operator(=)operator(~) regexp<delimiter(/)content(^(oo+?\))char(\\1)content(+$)delimiter(/)>
+    ident(print) global_variable($1)operator(.)ident(size)operator(,) string<delimiter(")content( )delimiter(")>
+    ident(cap)operator(.)ident(gsub!)operator(()regexp<delimiter(/)inline<delimiter(#{)global_variable($1)delimiter(})>delimiter(/)>operator(,)string<delimiter(')content(o)delimiter(')>operator(\))
+reserved(end)
+ident(puts) ident(cap)operator(.)ident(size)
+comment(#-----------------------------)
+comment(#diophantine)
+comment(# solve for 12x + 15y + 16z = 281, maximizing x)
+reserved(if) operator(()string<delimiter(')content(o)delimiter(')> operator(*) integer(281)operator(\))operator(.)ident(match)operator(()regexp<delimiter(/)content(^(o*\))char(\\1)content({11}(o*\))char(\\2)content({14}(o*\))char(\\3)content({15}$)delimiter(/)>operator(\))
+    ident(x)operator(,) ident(y)operator(,) ident(z) operator(=) global_variable($1)operator(.)ident(size)operator(,) global_variable($2)operator(.)ident(size)operator(,) global_variable($3)operator(.)ident(size)
+    ident(puts) string<delimiter(")content(One solution is: x=)inline<delimiter(#{)ident(x)delimiter(})>content(; y=)inline<delimiter(#{)ident(y)delimiter(})>content(; z=)inline<delimiter(#{)ident(z)delimiter(})>delimiter(")>
+reserved(else) 
+    ident(puts) string<delimiter(")content(No solution.)delimiter(")>
+reserved(end)
+comment(#    => One solution is: x=17; y=3; z=2)
+
+comment(#-----------------------------)
+comment(# using different quantifiers:)
+operator(()string<delimiter(')content(o)delimiter(')> operator(*) integer(281)operator(\))operator(.)ident(match)operator(()regexp<delimiter(/)content(^(o+\))char(\\1)content({11}(o+\))char(\\2)content({14}(o+\))char(\\3)content({15}$)delimiter(/)>operator(\))
+comment(#    => One solution is: x=17; y=3; z=2)
+
+operator(()string<delimiter(')content(o)delimiter(')> operator(*) integer(281)operator(\))operator(.)ident(match)operator(()regexp<delimiter(/)content(^(o*?\))char(\\1)content({11}(o*\))char(\\2)content({14}(o*\))char(\\3)content({15}$)delimiter(/)>operator(\))
+comment(#    => One solution is: x=0; y=7; z=11)
+
+operator(()string<delimiter(')content(o)delimiter(')> operator(*) integer(281)operator(\))operator(.)ident(match)operator(()regexp<delimiter(/)content(^(o+?\))char(\\1)content({11}(o*\))char(\\2)content({14}(o*\))char(\\3)content({15}$)delimiter(/)>operator(\))
+comment(#    => One solution is: x=1; y=3; z=14)
+
+
+comment(# @@PLEAC@@_6.17)
+comment(# alpha OR beta)
+regexp<delimiter(%r/)content(alpha|beta)delimiter(/)>
+
+comment(# alpha AND beta)
+regexp<delimiter(%r/)content((?=.*alpha\)(?=.*beta\))delimiter(/)modifier(m)>
+
+comment(# alpha AND beta,  no overlap)
+regexp<delimiter(%r/)content(alpha.*beta|beta.*alpha)delimiter(/)modifier(m)>
+
+comment(# NOT beta)
+regexp<delimiter(%r/)content(^(?:(?!beta\).\)*$)delimiter(/)modifier(m)>
+
+comment(# NOT bad BUT good)
+regexp<delimiter(%r/)content((?=(?:(?!BAD\).\)*$\)GOOD)delimiter(/)modifier(m)>
+comment(#-----------------------------)
+
+reserved(if) operator(!)operator(()ident(string) operator(=)operator(~) regexp<delimiter(/)content(pattern)delimiter(/)>operator(\))   comment(# ugly)
+    ident(something)operator(()operator(\))
+reserved(end)
+
+reserved(if) ident(string) operator(!)operator(~) regexp<delimiter(/)content(pattern)delimiter(/)>   comment(# preferred)
+    ident(something)operator(()operator(\))
+reserved(end)
+
+
+comment(#-----------------------------)
+reserved(if) ident(string) operator(=)operator(~) regexp<delimiter(/)content(pat1)delimiter(/)>  operator(&&) ident(string) operator(=)operator(~) regexp<delimiter(/)content(pat2)delimiter(/)>
+    ident(something)operator(()operator(\))
+reserved(end)
+comment(#-----------------------------)
+reserved(if) ident(string) operator(=)operator(~) regexp<delimiter(/)content(pat1)delimiter(/)> operator(||) ident(string) operator(=)operator(~) regexp<delimiter(/)content(pat2)delimiter(/)>
+    ident(something)operator(()operator(\))
+reserved(end)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# minigrep - trivial grep)
+ident(pat) operator(=) pre_constant(ARGV)operator(.)ident(shift)
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(print) ident(line) reserved(if) ident(line) operator(=)operator(~) regexp<delimiter(/)inline<delimiter(#{)ident(pat)delimiter(})>delimiter(/)modifier(o)>
+reserved(end)
+comment(#-----------------------------)
+ string<delimiter(")content(labelled)delimiter(")> operator(=)operator(~) regexp<delimiter(/)content(^(?=.*bell\)(?=.*lab\))delimiter(/)modifier(m)>
+comment(#-----------------------------)
+global_variable($string) operator(=)operator(~) regexp<delimiter(/)content(bell)delimiter(/)> operator(&&) global_variable($string) operator(=)operator(~) regexp<delimiter(/)content(lab)delimiter(/)>
+comment(#-----------------------------)
+global_variable($murray_hill) operator(=) string<delimiter(")content(blah bell blah )delimiter(")>
+reserved(if) global_variable($murray_hill) operator(=)operator(~) regexp<delimiter(%r{)content(
+                         ^              # start of string
+                        (?=             # zero-width lookahead
+                            .*          # any amount of intervening stuff
+                            bell        # the desired bell string
+                        \)               # rewind, since we were only looking
+                        (?=             # and do the same thing
+                            .*          # any amount of intervening stuff
+                            lab         # and the lab part
+                        \)
+                     )delimiter(})modifier(mx)>                comment(# /m means . can match newline)
+
+    ident(print) string<delimiter(")content(Looks like Bell Labs might be in Murray Hill!)char(\\n)delimiter(")>operator(;)
+reserved(end)
+comment(#-----------------------------)
+string<delimiter(")content(labelled)delimiter(")> operator(=)operator(~) regexp<delimiter(/)content((?:^.*bell.*lab\)|(?:^.*lab.*bell\))delimiter(/)>
+comment(#-----------------------------)
+global_variable($brand) operator(=) string<delimiter(")content(labelled)delimiter(")>operator(;)
+reserved(if) global_variable($brand) operator(=)operator(~) regexp<delimiter(%r{)content(
+                (?:                 # non-capturing grouper
+                    ^ .*?           # any amount of stuff at the front
+                      bell          # look for a bell
+                      .*?           # followed by any amount of anything
+                      lab           # look for a lab
+                  \)                 # end grouper
+            |                       # otherwise, try the other direction
+                (?:                 # non-capturing grouper
+                    ^ .*?           # any amount of stuff at the front
+                      lab           # look for a lab
+                      .*?           # followed by any amount of anything
+                      bell          # followed by a bell
+                  \)                 # end grouper
+            )delimiter(})modifier(mx)>                     comment(# /m means . can match newline)
+    ident(print) string<delimiter(")content(Our brand has bell and lab separate.)char(\\n)delimiter(")>operator(;)
+reserved(end)
+comment(#-----------------------------)
+global_variable($map) operator(=)operator(~) regexp<delimiter(/)content(^(?:(?!waldo\).\)*$)delimiter(/)modifier(s)>
+comment(#-----------------------------)
+global_variable($map) operator(=) string<delimiter(")content(the great baldo)delimiter(")>
+reserved(if) global_variable($map) operator(=)operator(~) regexp<delimiter(%r{)content(
+                ^                   # start of string
+                (?:                 # non-capturing grouper
+                    (?!             # look ahead negation
+                        waldo       # is he ahead of us now?
+                    \)               # is so, the negation failed
+                    .               # any character (cuzza /s\)
+                \) *                 # repeat that grouping 0 or more
+                $                   # through the end of the string
+             )delimiter(})modifier(mx)>                    comment(# /m means . can match newline)
+    ident(print) string<delimiter(")content(There's no waldo here!)char(\\n)delimiter(")>operator(;)
+reserved(end)
+comment(=begin
+ 7:15am  up 206 days, 13:30,  4 users,  load average: 1.04, 1.07, 1.04
+
+USER     TTY      FROM              LOGIN@  IDLE   JCPU   PCPU  WHAT
+
+tchrist  tty1                       5:16pm 36days 24:43   0.03s  xinit
+
+tchrist  tty2                       5:19pm  6days  0.43s  0.43s  -tcsh
+
+tchrist  ttyp0    chthon            7:58am  3days 23.44s  0.44s  -tcsh
+
+gnat     ttyS4    coprolith         2:01pm 13:36m  0.30s  0.30s  -tcsh
+=end)
+comment(#% w | minigrep '^(?!.*ttyp\).*tchrist')
+comment(#-----------------------------)
+regexp<delimiter(%r{)content(
+    ^                       # anchored to the start
+    (?!                     # zero-width look-ahead assertion
+        .*                  # any amount of anything (faster than .*?\)
+        ttyp                # the string you don't want to find
+    \)                       # end look-ahead negation; rewind to start
+    .*                      # any amount of anything (faster than .*?\)
+    tchrist                 # now try to find Tom
+)delimiter(})modifier(x)>
+comment(#-----------------------------)
+comment(#% w | grep tchrist | grep -v ttyp)
+comment(#-----------------------------)
+comment(#% grep -i 'pattern' files)
+comment(#% minigrep '(?i\)pattern' files)
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_6.20)
+ident(ans) operator(=) global_variable($stdin)operator(.)ident(gets)operator(.)ident(chomp)
+ident(re) operator(=) regexp<delimiter(%r/)content(^)inline<delimiter(#{)constant(Regexp)operator(.)ident(quote)operator(()ident(ans)operator(\))delimiter(})>delimiter(/)>
+reserved(case) 
+    reserved(when) string<delimiter(")content(SEND)delimiter(")>  operator(=)operator(~) ident(re) operator(:) ident(puts) string<delimiter(")content(Action is send)delimiter(")>
+    reserved(when) string<delimiter(")content(STOP)delimiter(")>  operator(=)operator(~) ident(re) operator(:) ident(puts) string<delimiter(")content(Action is stop)delimiter(")>
+    reserved(when) string<delimiter(")content(ABORT)delimiter(")> operator(=)operator(~) ident(re) operator(:) ident(puts) string<delimiter(")content(Action is abort)delimiter(")>
+    reserved(when) string<delimiter(")content(EDIT)delimiter(")>  operator(=)operator(~) ident(re) operator(:) ident(puts) string<delimiter(")content(Action is edit)delimiter(")>
+reserved(end)
+comment(#-----------------------------)
+ident(require) string<delimiter(')content(abbrev)delimiter(')>
+ident(table) operator(=) constant(Abbrev)operator(.)ident(abbrev) string<delimiter(%w-)content(send stop abort edit)delimiter(-)>
+ident(loop) reserved(do)
+    ident(print) string<delimiter(")content(Action: )delimiter(")>
+    ident(ans) operator(=) global_variable($stdin)operator(.)ident(gets)operator(.)ident(chomp)
+    ident(puts) string<delimiter(")content(Action for )inline<delimiter(#{)ident(ans)delimiter(})>content( is )inline<delimiter(#{)ident(table)operator([)ident(ans)operator(.)ident(downcase)operator(])delimiter(})>delimiter(")>
+reserved(end)
+
+
+comment(#-----------------------------)
+comment(# dummy values are defined for 'file', 'PAGER', and)
+comment(# the 'invoke_editor' and 'deliver_message' methods)
+comment(# do not do anything interesting in this example.)
+comment(#!/usr/bin/ruby -w)
+ident(require) string<delimiter(')content(abbrev)delimiter(')>
+
+ident(file) operator(=) string<delimiter(')content(pleac_ruby.data)delimiter(')>
+constant(PAGER) operator(=) string<delimiter(')content(less)delimiter(')>
+
+reserved(def) method(invoke_editor)
+    ident(puts) string<delimiter(")content(invoking editor)delimiter(")>
+reserved(end)
+
+reserved(def) method(deliver_message)
+    ident(puts) string<delimiter(")content(delivering message)delimiter(")>
+reserved(end)
+
+ident(actions) operator(=) operator({)
+    string<delimiter(')content(edit)delimiter(')>  operator(=)operator(>) pre_constant(self)operator(.)ident(method)operator(()symbol(:invoke_editor)operator(\))operator(,)
+    string<delimiter(')content(send)delimiter(')>  operator(=)operator(>) pre_constant(self)operator(.)ident(method)operator(()symbol(:deliver_message)operator(\))operator(,)
+    string<delimiter(')content(list)delimiter(')>  operator(=)operator(>) ident(proc) operator({)ident(system)operator(()constant(PAGER)operator(,) ident(file)operator(\))operator(})operator(,)
+    string<delimiter(')content(abort)delimiter(')> operator(=)operator(>) ident(proc) operator({)ident(puts) string<delimiter(")content(See ya!)delimiter(")>operator(;) ident(exit)operator(})operator(,)
+    string<delimiter(")delimiter(")>      operator(=)operator(>) ident(proc) operator({)ident(puts) string<delimiter(")content(Unknown Command)delimiter(")>operator(})
+operator(})
+
+ident(dtable) operator(=) constant(Abbrev)operator(.)ident(abbrev)operator(()ident(actions)operator(.)ident(keys)operator(\))
+ident(loop) reserved(do)
+    ident(print) string<delimiter(")content(Action: )delimiter(")>
+    ident(ans) operator(=) global_variable($stdin)operator(.)ident(gets)operator(.)ident(chomp)operator(.)ident(delete)operator(()string<delimiter(")content( )char(\\t)delimiter(")>operator(\))
+    ident(actions)operator([) ident(dtable)operator([)ident(ans)operator(.)ident(downcase)operator(]) operator(||) string<delimiter(")delimiter(")> operator(])operator(.)ident(call)
+reserved(end)
+
+
+comment(# @@PLEAC@@_6.19)
+comment(#-----------------------------)
+comment(# basically, the Perl Cookbook categorizes this as an)
+comment(# unsolvable problem ...)
+comment(#-----------------------------)
+integer(1) reserved(while) ident(addr)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\()content([^(\)]*)char(\\\))delimiter(/)>operator(,)string<delimiter(')delimiter(')>operator(\))
+comment(#-----------------------------)
+constant(Dear) ident(someuser)instance_variable(@host)operator(.)ident(com)operator(,)
+
+constant(Please) ident(confirm) ident(the) ident(mail) ident(address) ident(you) ident(gave) ident(us) constant(Wed) constant(May)  integer(6) integer(09)operator(:)integer(38)operator(:)integer(41)
+constant(MDT) integer(1998) ident(by) ident(replying) ident(to) ident(this) ident(message)operator(.)  constant(Include) ident(the) ident(string)
+string<delimiter(")content(Rumpelstiltskin)delimiter(")> reserved(in) ident(that) ident(reply)operator(,) ident(but) ident(spelled) reserved(in) ident(reverse)operator(;) ident(that) ident(is)operator(,)
+ident(start) ident(with) string<delimiter(")content(Nik...)delimiter(")>operator(.)  constant(Once) ident(this) ident(is) ident(done)operator(,) ident(your) ident(confirmed) ident(address) ident(will)
+ident(be) ident(entered) ident(into) ident(our) ident(records)operator(.)
+
+
+comment(# @@PLEAC@@_6.21)
+comment(#-----------------------------)
+comment(#% gunzip -c ~/mail/archive.gz | urlify > archive.urlified)
+comment(#-----------------------------)
+comment(#% urlify ~/mail/*.inbox > ~/allmail.urlified)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# urlify - wrap HTML links around URL-like constructs)
+
+ident(urls) operator(=) string<delimiter(')content((https?|telnet|gopher|file|wais|ftp\))delimiter(')>operator(;)
+ident(ltrs) operator(=) string<delimiter(')content(\\w)delimiter(')>operator(;)
+ident(gunk) operator(=) string<delimiter(')content(/#~:.?+=&%@!)content(\\-)delimiter(')>operator(;)
+ident(punc) operator(=) string<delimiter(')content(.:?)content(\\-)delimiter(')>operator(;)
+ident(any)  operator(=) string<delimiter(")inline<delimiter(#{)ident(ltrs)delimiter(})>inline<delimiter(#{)ident(gunk)delimiter(})>inline<delimiter(#{)ident(punc)delimiter(})>delimiter(")>operator(;)
+
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(line)operator(.)ident(gsub!) regexp<delimiter(%r/)content(
+        )char(\\b)content(                    # start at word boundary
+        (                     # begin $1  {
+         )inline<delimiter(#{)ident(urls)delimiter(})>content(     :        # need resource and a colon
+         [)inline<delimiter(#{)ident(any)delimiter(})>content(] +?          # followed by on or more
+                              #  of any valid character, but
+                              #  be conservative and take only
+                              #  what you need to....
+        \)                     # end   $1  }
+        (?=                   # look-ahead non-consumptive assertion
+         [)inline<delimiter(#{)ident(punc)delimiter(})>content(]*           # either 0 or more punctuation
+         [^)inline<delimiter(#{)ident(any)delimiter(})>content(]            #   followed by a non-url char
+         |                    # or else
+         $                    #   then end of the string
+        \)
+    )delimiter(/)modifier(iox)> reserved(do) 
+        string<delimiter(%Q|)content(<A HREF=")inline<delimiter(#{)global_variable($1)delimiter(})>content(">)inline<delimiter(#{)global_variable($1)delimiter(})>content(</A>)delimiter(|)>
+    reserved(end)
+    ident(print) ident(line)
+reserved(end)
+
+
+comment(# @@PLEAC@@_6.23)
+regexp<delimiter(%r/)content(^m*(d?c{0,3}|c[dm]\)(l?x{0,3}|x[lc]\)(v?i{0,3}|i[vx]\)$)delimiter(/)modifier(i)>
+comment(#-----------------------------)
+ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(()char(\\S)content(+\)()char(\\s)content(+\)()char(\\S)content(+\))delimiter(/)>operator(,) string<delimiter(')content(\\3)content(\\2)content(\\1)delimiter(')>operator(\))
+comment(#-----------------------------)
+regexp<delimiter(%r/)content(()char(\\w)content(+\))char(\\s)content(*=)char(\\s)content(*(.*\))char(\\s)content(*$)delimiter(/)>             comment(# keyword is $1, value is $2)
+comment(#-----------------------------)
+regexp<delimiter(%r/)content(.{80,})delimiter(/)>
+comment(#-----------------------------)
+regexp<delimiter(%r|)content(()char(\\d)content(+\)/()char(\\d)content(+\)/()char(\\d)content(+\) ()char(\\d)content(+\):()char(\\d)content(+\):()char(\\d)content(+\))delimiter(|)>
+comment(#-----------------------------)
+ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(%r|)content(/usr/bin)delimiter(|)>operator(,)string<delimiter(')content(/usr/local/bin)delimiter(')>operator(\))
+comment(#-----------------------------)
+ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content(%([0-9A-Fa-f][0-9A-Fa-f]\))delimiter(/)>operator(\))operator({) global_variable($1)operator(.)ident(hex)operator(.)ident(chr) operator(})
+comment(#-----------------------------)
+ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(%r{)content(
+    /)char(\\*)content(                    # Match the opening delimiter
+    .*?                    # Match a minimal number of characters
+    )char(\\*)content(/                    # Match the closing delimiter
+)delimiter(})modifier(xm)>operator(,)string<delimiter(')delimiter(')>operator(\))
+comment(#-----------------------------)
+ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(^)char(\\s)content(+)delimiter(/)>operator(,) string<delimiter(')delimiter(')>operator(\))
+ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)char(\\s)content(+$)delimiter(/)>operator(,) string<delimiter(')delimiter(')>operator(\))
+
+comment(# but really, in Ruby we'd just do:)
+ident(str)operator(.)ident(strip!)
+comment(#-----------------------------)
+ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\\\)content(n)delimiter(/)>operator(,)string<delimiter(")char(\\n)delimiter(")>operator(\))
+comment(#-----------------------------)
+ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(^.*::)delimiter(/)>operator(,) string<delimiter(')delimiter(')>operator(\))
+comment(#-----------------------------)
+regexp<delimiter(%r/)content(^([01]?)char(\\d)char(\\d)content(|2[0-4])char(\\d)content(|25[0-5]\))char(\\.)content(([01]?)char(\\d)char(\\d)content(|2[0-4])char(\\d)content(|25[0-5]\))char(\\.)content(
+    ([01]?)char(\\d)char(\\d)content(|2[0-4])char(\\d)content(|25[0-5]\))char(\\.)content(([01]?)char(\\d)char(\\d)content(|2[0-4])char(\\d)content(|25[0-5]\)$)delimiter(/)modifier(x)>
+comment(#-----------------------------)
+ident(str)operator(.)ident(sub!)operator(()regexp<delimiter(%r|)content(^.*/)delimiter(|)>operator(,) string<delimiter(')delimiter(')>operator(\))
+comment(#-----------------------------)
+ident(cols) operator(=) operator(() operator(()constant(ENV)operator([)string<delimiter(')content(TERMCAP)delimiter(')>operator(]) operator(||) string<delimiter(")content( )delimiter(")>operator(\)) operator(=)operator(~) regexp<delimiter(/)content(:co#()char(\\d)content(+\):)delimiter(/)> operator(\)) operator(?) global_variable($1) operator(:) integer(80)operator(;)
+comment(#-----------------------------)
+ident(name) operator(=) string<delimiter(")content( )inline<delimiter(#{)global_variable($0)delimiter(})>content( )inline<delimiter(#{)pre_constant(ARGV)delimiter(})>delimiter(")>operator(.)ident(gsub)operator(()regexp<delimiter(%r|)content( /)char(\\S)content(+/)delimiter(|)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+comment(#-----------------------------)
+ident(require) string<delimiter(')content(rbconfig)delimiter(')>
+ident(include) constant(Config)
+ident(raise) string<delimiter(")content(This isn't Linux)delimiter(")> reserved(unless) constant(CONFIG)operator([)string<delimiter(')content(target_os)delimiter(')>operator(]) operator(=)operator(~) regexp<delimiter(/)content(linux)delimiter(/)modifier(i)>operator(;)
+comment(#-----------------------------)
+ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(%r/)char(\\n)char(\\s)content(+)delimiter(/)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+comment(#-----------------------------)
+ident(nums) operator(=) ident(str)operator(.)ident(scan)operator(()regexp<delimiter(/)content(()char(\\d)content(+)char(\\.)content(?)char(\\d)content(*|)char(\\.)char(\\d)content(+\))delimiter(/)>operator(\))
+comment(#-----------------------------)
+ident(capwords) operator(=) ident(str)operator(.)ident(scan)operator(()regexp<delimiter(%r/)content(()char(\\b)content([^)char(\\W)content(a-z0-9_]+)char(\\b)content(\))delimiter(/)>operator(\))
+comment(#-----------------------------)
+ident(lowords) operator(=) ident(str)operator(.)ident(scan)operator(()regexp<delimiter(%r/)content(()char(\\b)content([^)char(\\W)content(A-Z0-9_]+)char(\\b)content(\))delimiter(/)>operator(\))
+comment(#-----------------------------)
+ident(icwords) operator(=) ident(str)operator(.)ident(scan)operator(()regexp<delimiter(%r/)content(()char(\\b)content([^)char(\\W)content(a-z0-9_][^)char(\\W)content(A-Z0-9_]*)char(\\b)content(\))delimiter(/)>operator(\))
+comment(#-----------------------------)
+ident(links) operator(=) ident(str)operator(.)ident(scan)operator(()regexp<delimiter(%r/)content(<A[^>]+?HREF)char(\\s)content(*=)char(\\s)content(*["']?([^'" >]+?\)[ '"]?>)delimiter(/)modifier(mi)>operator(\))
+comment(#-----------------------------)
+ident(initial) operator(=) ident(str) operator(=)operator(~) regexp<delimiter(/)content(^)char(\\S)content(+)char(\\s)content(+()char(\\S)content(\))char(\\S)content(*)char(\\s)content(+)char(\\S)delimiter(/)> operator(?) global_variable($1) operator(:) string<delimiter(")delimiter(")>
+comment(#-----------------------------)
+ident(str)operator(.)ident(gsub!)operator(()regexp<delimiter(%r/)content("([^"]*\)")delimiter(/)>operator(,) string<delimiter(%q-)content(``)content(\\1)content('')delimiter(-)>operator(\))
+comment(#-----------------------------)
+
+global_variable($/) operator(=) string<delimiter(")delimiter(")>
+ident(sentences) operator(=) operator([)operator(])
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(para)operator(|)
+    ident(para)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\n)delimiter(/)>operator(,) string<delimiter(')content( )delimiter(')>operator(\))
+    ident(para)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content( {3,})delimiter(/)>operator(,)string<delimiter(')content(  )delimiter(')>operator(\))
+    ident(sentences) operator(<<) ident(para)operator(.)ident(scan)operator(()regexp<delimiter(/)content(()char(\\S)content(.*?[!?.]\)(?=  |)char(\\Z)content(\))delimiter(/)>operator(\))
+reserved(end)
+
+comment(#-----------------------------)
+regexp<delimiter(%r/)content(()char(\\d)content({4}\)-()char(\\d)char(\\d)content(\)-()char(\\d)char(\\d)content(\))delimiter(/)>            comment(# YYYY in $1, MM in $2, DD in $3)
+comment(#-----------------------------)
+regexp<delimiter(%r/)content( ^
+      (?:
+       1 )char(\\s)content( (?: )char(\\d)char(\\d)char(\\d)content( )char(\\s)content(\)?            # 1, or 1 and area code
+       |                               # ... or ...
+       )char(\\()char(\\d)char(\\d)char(\\d)char(\\\))content( )char(\\s)content(                   # area code with parens
+       |                               # ... or ...
+       (?: )char(\\+)char(\\d)char(\\d)content(?)char(\\d)content(? )char(\\s)content(\)?             # optional +country code
+       )char(\\d)char(\\d)char(\\d)content( ([)char(\\s)char(\\-)content(]\)                 # and area code
+      \)
+      )char(\\d)char(\\d)char(\\d)content( ()char(\\s)content(|)char(\\1)content(\)                   # prefix (and area code separator\)
+      )char(\\d)char(\\d)char(\\d)char(\\d)content(                         # exchange
+        $
+ )delimiter(/)modifier(x)>
+comment(#-----------------------------)
+regexp<delimiter(%r/)char(\\b)content(oh)char(\\s)content(+my)char(\\s)content(+gh?o(d(dess(es\)?|s?\)|odness|sh\))char(\\b)delimiter(/)modifier(i)>
+comment(#-----------------------------)
+ident(lines) operator(=) operator([)operator(])
+ident(lines) operator(<<) global_variable($1) reserved(while) ident(input)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(^([^)char(\\012)char(\\015)content(]*\)()char(\\012)char(\\015)content(?|)char(\\015)char(\\012)content(?\))delimiter(/)>operator(,)string<delimiter(')delimiter(')>operator(\))
+
+
+comment(# @@PLEAC@@_7.0)
+comment(# An IO object being Enumerable, we can use 'each' directly on it)
+constant(File)operator(.)ident(open)operator(()string<delimiter(")content(/usr/local/widgets/data)delimiter(")>operator(\))operator(.)ident(each) operator({) operator(|)ident(line)operator(|)
+    ident(puts) ident(line) reserved(if) ident(line) operator(=)operator(~) regexp<delimiter(/)content(blue)delimiter(/)>
+operator(})
+
+ident(logfile) operator(=) constant(File)operator(.)ident(new)operator(()string<delimiter(")content(/var/log/rubylog.txt)delimiter(")>operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+ident(mysub)operator(()global_variable($stdin)operator(,) ident(logfile)operator(\))
+
+comment(# The method IO#readline is similar  to IO#gets)
+comment(# but throws an exception when it reaches EOF)
+ident(f) operator(=) constant(File)operator(.)ident(new)operator(()string<delimiter(")content(bla.txt)delimiter(")>operator(\))
+reserved(begin)
+    reserved(while) operator(()ident(line) operator(=) ident(f)operator(.)ident(readline)operator(\))
+        ident(line)operator(.)ident(chomp)
+        global_variable($stdout)operator(.)ident(print) ident(line) reserved(if) ident(line) operator(=)operator(~) regexp<delimiter(/)content(blue)delimiter(/)>
+    reserved(end)
+reserved(rescue) constant(EOFError)
+    ident(f)operator(.)ident(close)
+reserved(end)
+
+reserved(while) global_variable($stdin)operator(.)ident(gets)                        comment(# reads from STDIN)
+    reserved(unless) operator(()regexp<delimiter(/)char(\\d)delimiter(/)>operator(\)) 
+        global_variable($stderr)operator(.)ident(puts) string<delimiter(")content(No digit found.)delimiter(")>   comment(# writes to STDERR)
+    reserved(end)
+    ident(puts) string<delimiter(")content(Read: )inline<delimiter(#{)global_variable($_)delimiter(})>delimiter(")>                   comment(# writes to STDOUT)
+reserved(end)
+
+ident(logfile) operator(=) constant(File)operator(.)ident(new)operator(()string<delimiter(")content(/tmp/log)delimiter(")>operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+
+ident(logfile)operator(.)ident(close)
+
+comment(# $defout (or its synonym '$>'\) is the destination of output)
+comment(# for Kernel#print, Kernel#puts, and family functions)
+ident(logfile) operator(=) constant(File)operator(.)ident(new)operator(()string<delimiter(")content(log.txt)delimiter(")>operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+ident(old) operator(=) global_variable($defout)
+global_variable($defout) operator(=) ident(logfile)                 comment(# switch to logfile for output)
+ident(puts) string<delimiter(")content(Countdown initiated ...)delimiter(")>
+global_variable($defout) operator(=) ident(old)                     comment(# return to original output)
+ident(puts) string<delimiter(")content(You have 30 seconds to reach minimum safety distance.)delimiter(")>
+
+
+comment(# @@PLEAC@@_7.1)
+ident(source) operator(=) constant(File)operator(.)ident(new)operator(()ident(path)operator(,) string<delimiter(")content(r)delimiter(")>operator(\))  comment(# open file "path" for reading only)
+ident(sink)   operator(=) constant(File)operator(.)ident(new)operator(()ident(path)operator(,) string<delimiter(")content(w)delimiter(")>operator(\))  comment(# open file "path" for writing only)
+
+ident(source) operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(RDONLY)operator(\))  comment(# open file "path" for reading only)
+ident(sink)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(WRONLY)operator(\))  comment(# open file "path" for writing only)
+
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) string<delimiter(")content(r+)delimiter(")>operator(\))  comment(# open "path" for reading and writing)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) ident(flags)operator(\)) comment(# open "path" with the flags "flags" (see examples below for flags\))
+
+comment(# open file "path" read only)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) string<delimiter(")content(r)delimiter(")>operator(\))
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(RDONLY)operator(\))
+
+comment(# open file "path" write only, create it if it does not exist)
+comment(# truncate it to zero length if it exists)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(WRONLY)operator(|)constant(File)operator(::)constant(TRUNC)operator(|)constant(File)operator(::)constant(CREAT)operator(\)) 
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(WRONLY)operator(|)constant(File)operator(::)constant(TRUNC)operator(|)constant(File)operator(::)constant(CREAT)operator(,) integer(0666)operator(\))  comment(# with permission 0666)
+
+comment(# open file "path" write only, fails if file exists)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(WRONLY)operator(|)constant(File)operator(::)constant(EXCL)operator(|)constant(File)operator(::)constant(CREAT)operator(\)) 
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(WRONLY)operator(|)constant(File)operator(::)constant(EXCL)operator(|)constant(File)operator(::)constant(CREAT)operator(,) integer(0666)operator(\)) 
+
+comment(# open file "path" for appending)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) string<delimiter(")content(a)delimiter(")>operator(\))
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(WRONLY)operator(|)constant(File)operator(::)constant(APPEND)operator(|)constant(File)operator(::)constant(CREAT)operator(\)) 
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(WRONLY)operator(|)constant(File)operator(::)constant(APPEND)operator(|)constant(File)operator(::)constant(CREAT)operator(,) integer(0666)operator(\)) 
+
+comment(# open file "path" for appending only when file exists)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(WRONLY)operator(|)constant(File)operator(::)constant(APPEND)operator(\)) 
+
+comment(# open file "path" for reading and writing)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) string<delimiter(")content(r+)delimiter(")>operator(\))
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(RDWR)operator(\))
+
+comment(# open file for reading and writing, create a new file if it does not exist)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(RDWR)operator(|)constant(File)operator(::)constant(CREAT)operator(\))
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(RDWR)operator(|)constant(File)operator(::)constant(CREAT)operator(,) integer(0600)operator(\))
+
+comment(# open file "path" reading and writing, fails if file exists)
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(RDWR)operator(|)constant(File)operator(::)constant(EXCL)operator(|)constant(File)operator(::)constant(CREAT)operator(\))
+ident(file)   operator(=) constant(File)operator(.)ident(open)operator(()ident(path)operator(,) constant(File)operator(::)constant(RDWR)operator(|)constant(File)operator(::)constant(EXCL)operator(|)constant(File)operator(::)constant(CREAT)operator(,) integer(0600)operator(\))
+
+
+comment(# @@PLEAC@@_7.2)
+comment(# No problem with Ruby since the filename doesn't contain characters with)
+comment(# special meaning; like Perl's sysopen)
+constant(File)operator(.)ident(open)operator(()ident(filename)operator(,) string<delimiter(')content(r)delimiter(')>operator(\))
+
+
+comment(# @@PLEAC@@_7.3)
+constant(File)operator(.)ident(expand_path)operator(()string<delimiter(')content(~root/tmp)delimiter(')>operator(\))
+comment(#=> "/root/tmp")
+constant(File)operator(.)ident(expand_path)operator(()string<delimiter(')content(~rpcuser)delimiter(')>operator(\))
+comment(#=> "/var/lib/nfs")
+
+comment(# To expand ~/.. it explicitely needs the environment variable HOME)
+constant(File)operator(.)ident(expand_path)operator(()string<delimiter(')content(~/tmp)delimiter(')>operator(\))
+comment(#=> "/home/gc/tmp")
+
+
+comment(# @@PLEAC@@_7.4)
+comment(# The exception raised in Ruby reports the filename)
+constant(File)operator(.)ident(open)operator(()string<delimiter(')content(afile)delimiter(')>operator(\))
+
+
+comment(# @@PLEAC@@_7.5)
+comment(# Standard Ruby distribution provides the following useful extension)
+ident(require) string<delimiter(')content(tempfile)delimiter(')>
+comment(# With the Tempfile class, the file is automatically deleted on garbage)
+comment(# collection, so you won't need to remove it, later on.)
+ident(tf) operator(=) constant(Tempfile)operator(.)ident(new)operator(()string<delimiter(')content(tmp)delimiter(')>operator(\))   comment(# a name is required to create the filename)
+
+comment(# If you need to pass the filename to an external program you can use)
+comment(# File#path, but don't forget to File#flush in order to flush anything)
+comment(# living in some buffer somewhere.)
+ident(tf)operator(.)ident(flush)
+ident(system)operator(()string<delimiter(")content(/usr/bin/dowhatever )inline<delimiter(#{)ident(tf)operator(.)ident(path)delimiter(})>delimiter(")>operator(\))
+
+ident(fh) operator(=) constant(Tempfile)operator(.)ident(new)operator(()string<delimiter(')content(tmp)delimiter(')>operator(\))
+ident(fh)operator(.)ident(sync) operator(=) pre_constant(true)                comment(# autoflushes)
+integer(10)operator(.)ident(times) operator({) operator(|)ident(i)operator(|) ident(fh)operator(.)ident(puts) ident(i) operator(})
+ident(fh)operator(.)ident(rewind)
+ident(puts) string<delimiter(')content(Tmp file has: )delimiter(')>operator(,) ident(fh)operator(.)ident(readlines)
+
+
+comment(# @@PLEAC@@_7.6)
+reserved(while) operator(()pre_constant(DATA)operator(.)ident(gets)operator(\)) reserved(do)
+    comment(# process the line  )
+reserved(end)
+comment(__END__
+# your data goes here
+# __DATA__ doesn't exist in Ruby
+
+)comment(#CODE)
+comment(# get info about the script (size, date of last modification\))
+ident(kilosize) operator(=) pre_constant(DATA)operator(.)ident(stat)operator(.)ident(size) operator(/) integer(1024)
+ident(last_modif) operator(=) pre_constant(DATA)operator(.)ident(stat)operator(.)ident(mtime)
+ident(puts) string<delimiter(")content(<P>Script size is )inline<delimiter(#{)ident(kilosize)delimiter(})>delimiter(")>
+ident(puts) string<delimiter(")content(<P>Last script update: )inline<delimiter(#{)ident(last_modif)delimiter(})>delimiter(")>
+comment(__END__
+# DO NOT REMOVE THE PRECEEDING LINE.
+# Everything else in this file will be ignored.
+)comment(#CODE)
+
+
+comment(# @@PLEAC@@_7.7)
+reserved(while) ident(line) operator(=) ident(gets) reserved(do)
+    comment(# do something with line.)
+reserved(end)
+
+comment(#  or )
+reserved(while) ident(gets) reserved(do)
+    comment(# do something with $_)
+reserved(end)
+
+comment(# or more rubyish)
+global_variable($stdin)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    comment(# do stuff with line)
+reserved(end)
+
+
+comment(# ARGF may makes this more easy)
+comment(# this is skipped if ARGV.size==0)
+pre_constant(ARGV)operator(.)ident(each) reserved(do) operator(|)ident(filename)operator(|) 
+    comment(# closing and exception handling are done by the block)
+    ident(open)operator(()ident(filename)operator(\)) reserved(do) operator(|)ident(fd)operator(|) 
+        ident(fd)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+            comment(# do stuff with line)
+        reserved(end)   
+    reserved(end) reserved(rescue) ident(abort)operator(()string<delimiter(")content(can't open %s)delimiter(")> operator(%) ident(filename)operator(\))
+reserved(end)
+
+comment(# globbing is done in the Dir module)
+pre_constant(ARGV) operator(=) constant(Dir)operator([)string<delimiter(")content(*.[Cch])delimiter(")>operator(]) reserved(if) pre_constant(ARGV)operator(.)ident(empty?)
+
+comment(# note: optparse is the preferred way to handle this)
+reserved(if) operator(()pre_constant(ARGV)operator([)integer(0)operator(]) operator(==) string<delimiter(')content(-c)delimiter(')>operator(\))  
+    ident(chop_first) operator(+=) integer(1)
+    pre_constant(ARGV)operator(.)ident(shift)
+reserved(end)
+
+
+comment(# processing numerical options)
+reserved(if) pre_constant(ARGV)operator([)integer(0)operator(]) operator(=)operator(~) regexp<delimiter(/)content(^-()char(\\d)content(+\)$)delimiter(/)>
+    ident(columns) operator(=) global_variable($1)
+    pre_constant(ARGV)operator(.)ident(shift)
+reserved(end)
+
+comment(# again, better to use optparse:)
+ident(require) string<delimiter(')content(optparse)delimiter(')>
+ident(nostdout) operator(=) integer(0)
+ident(append) operator(=) integer(0)
+ident(unbuffer) operator(=) integer(0)
+ident(ignore_ints) operator(=) integer(0)
+pre_constant(ARGV)operator(.)ident(options) reserved(do) operator(|)ident(opt)operator(|)
+    ident(opt)operator(.)ident(on)operator(()string<delimiter(')content(-n)delimiter(')>operator(\)) operator({) ident(nostdout) operator(+=)integer(1) operator(})
+    ident(opt)operator(.)ident(on)operator(()string<delimiter(')content(-a)delimiter(')>operator(\)) operator({) ident(append)   operator(+=)integer(1) operator(})
+    ident(opt)operator(.)ident(on)operator(()string<delimiter(')content(-u)delimiter(')>operator(\)) operator({) ident(unbuffer) operator(+=)integer(1) operator(})
+    ident(opt)operator(.)ident(on)operator(()string<delimiter(')content(-i)delimiter(')>operator(\)) operator({) ident(ignore_ints) operator(+=)integer(1) operator(})
+    ident(opt)operator(.)ident(parse!)
+reserved(end) reserved(or) ident(abort)operator(()string<delimiter(")content(usage: )delimiter(")> operator(+) pre_constant(__FILE__) operator(+) string<delimiter(")content( [-ainu] [filenames])delimiter(")>operator(\))
+
+comment(# no need to do undef $/, we have File.read)
+ident(str) operator(=) constant(File)operator(.)ident(read)operator(()pre_constant(ARGV)operator([)integer(0)operator(])operator(\))
+
+comment(# again we have File.read)
+ident(str) operator(=) constant(File)operator(.)ident(read)operator(()pre_constant(ARGV)operator([)integer(0)operator(])operator(\))
+
+comment(# not sure what this should do:)
+comment(# I believe open the file, print filename, lineno and line:)
+pre_constant(ARGF)operator(.)ident(each_with_index) reserved(do) operator(|)ident(line)operator(,) ident(idx)operator(|)
+    ident(print) pre_constant(ARGF)operator(.)ident(filename)operator(,) string<delimiter(")content(:)delimiter(")>operator(,) ident(idx)operator(,) string<delimiter(")content(;)delimiter(")>operator(,) ident(line)
+reserved(end)
+
+comment(# print all the lines in every file passed via command line that contains login)
+pre_constant(ARGF)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(puts) ident(line) reserved(if) ident(line) operator(=)operator(~) regexp<delimiter(/)content(login)delimiter(/)>
+reserved(end)
+comment(#)
+comment(# even this would fit)
+comment(#%ruby -ne "print if /f/" 2.log)
+comment(#)
+
+pre_constant(ARGF)operator(.)ident(each) operator({) operator(|)ident(l)operator(|) ident(puts) ident(l)operator(.)ident(downcase!) operator(})
+
+comment(#------------------)
+comment(#!/usr/bin/ruby -p)
+comment(# just like perl's -p)
+global_variable($_)operator(.)ident(downcase!)
+comment(#)
+
+comment(# I don't know who should I trust. )
+comment(# perl's version splits on \\w+ while python's on \\w.)
+
+ident(chunks) operator(=) integer(0)
+
+constant(File)operator(.)ident(read)operator(()pre_constant(ARGV)operator([)integer(0)operator(])operator(\))operator(.)ident(split)operator(.)ident(each) reserved(do) operator(|)ident(word)operator(|)
+    reserved(next) reserved(if) ident(word) operator(=)operator(~) regexp<delimiter(/)content(^#)delimiter(/)>
+    reserved(break) reserved(if) operator([)string<delimiter(")content(__DATA__)delimiter(")>operator(,) string<delimiter(")content(__END__)delimiter(")>operator(])operator(.)ident(member?) ident(word)
+    ident(chunks) operator(+=) integer(1) 
+reserved(end)
+
+ident(print) string<delimiter(")content(Found )delimiter(")>operator(,) ident(chunks)operator(,) string<delimiter(")content( chunks)char(\\n)delimiter(")>
+
+
+comment(# @@PLEAC@@_7.8)
+ident(old) operator(=) constant(File)operator(.)ident(open)operator(()ident(old_file)operator(\))
+ident(new) operator(=) constant(File)operator(.)ident(open)operator(()ident(new_file)operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+reserved(while) ident(old)operator(.)ident(gets) reserved(do)
+    comment(# change $_, then...)
+    ident(new)operator(.)ident(print) global_variable($_)
+reserved(end)
+ident(old)operator(.)ident(close)
+ident(new)operator(.)ident(close)
+constant(File)operator(.)ident(rename)operator(()ident(old_file)operator(,) string<delimiter(")content(old.orig)delimiter(")>operator(\))
+constant(File)operator(.)ident(rename)operator(()ident(new_file)operator(,) ident(old_file)operator(\))
+
+reserved(while) ident(old)operator(.)ident(gets) reserved(do)
+    reserved(if) global_variable($.) operator(==) integer(20) reserved(then) comment(# we are at the 20th line)
+        ident(new)operator(.)ident(puts) string<delimiter(")content(Extra line 1)delimiter(")>
+        ident(new)operator(.)ident(puts) string<delimiter(")content(Extra line 2)delimiter(")>
+    reserved(end)
+    ident(new)operator(.)ident(print) global_variable($_)
+reserved(end)
+
+reserved(while) ident(old)operator(.)ident(gets) reserved(do)
+    reserved(next) reserved(if) integer(20)operator(..)integer(30) comment(# skip the 20th line to the 30th)
+                   comment(# Ruby (and Perl\) permit to write if 20..30 )
+                   comment(# instead of if (20 <= $.\) and ($. <= 30\))
+    ident(new)operator(.)ident(print) global_variable($_)
+reserved(end)
+
+
+comment(# @@PLEAC@@_7.9)
+comment(#% ruby -i.orig -pe 'FILTER COMMAND' file1 file2 file3 ...)
+comment(#)
+comment(#-----------------------------)
+comment(##!/usr/bin/ruby -i.orig -p)
+comment(# filter commands go here)
+comment(#-----------------------------)
+
+comment(#% ruby -pi.orig -e 'gsub!(/DATE/\){Time.now\)')
+
+comment(# effectively becomes:)
+pre_constant(ARGV) operator(<<) string<delimiter(')content(I)delimiter(')>
+ident(oldfile) operator(=) string<delimiter(")delimiter(")>
+reserved(while) ident(gets)
+    reserved(if) pre_constant(ARGF)operator(.)ident(filename) operator(!=) ident(oldfile)
+        ident(newfile) operator(=) pre_constant(ARGF)operator(.)ident(filename)
+        constant(File)operator(.)ident(rename)operator(()ident(newfile)operator(,) ident(newfile) operator(+) string<delimiter(")content(.orig)delimiter(")>operator(\))
+        global_variable($stdout) operator(=) constant(File)operator(.)ident(open)operator(()ident(newfile)operator(,)string<delimiter(')content(w)delimiter(')>operator(\))
+        ident(oldfile) operator(=) ident(newfile)
+    reserved(end)
+    ident(gsub!)operator(()regexp<delimiter(/)content(DATE)delimiter(/)>operator(\))operator({)constant(Time)operator(.)ident(now)operator(})
+    ident(print) 
+reserved(end)
+global_variable($stdout) operator(=) constant(STDOUT)
+comment(#-----------------------------)
+comment(#% ruby -i.old -pe 'gsub!(%r{\\bhisvar\\b}, 'hervar'\)' *.[Cchy])
+
+comment(#-----------------------------)
+comment(# set up to iterate over the *.c files in the current directory,)
+comment(# editing in place and saving the old file with a .orig extension)
+global_variable($-i) operator(=) string<delimiter(')content(.orig)delimiter(')>                       comment(# set up -i mode)
+pre_constant(ARGV)operator(.)ident(replace)operator(()constant(Dir)operator([)string<delimiter(')content(*.[Cchy])delimiter(')>operator(])operator(\))
+reserved(while) ident(gets)
+    reserved(if) global_variable($.) operator(==) integer(1)
+        ident(print) string<delimiter(")content(This line should appear at the top of each file)char(\\n)delimiter(")>
+    reserved(end)
+    ident(gsub!)operator(()regexp<delimiter(/)char(\\b)content((p\)earl)char(\\b)delimiter(/)modifier(i)>operator(,) string<delimiter(')content(\\1)content(erl)delimiter(')>operator(\))    comment(# Correct typos, preserving case)
+    ident(print)
+    pre_constant(ARGF)operator(.)ident(close) reserved(if) pre_constant(ARGF)operator(.)ident(eof)
+reserved(end)
+
+
+comment(# @@PLEAC@@_7.10)
+constant(File)operator(.)ident(open)operator(()string<delimiter(')content(itest)delimiter(')>operator(,) string<delimiter(')content(r+)delimiter(')>operator(\)) reserved(do) operator(|)ident(f)operator(|)   comment(# open file for update)
+    ident(lines) operator(=) ident(f)operator(.)ident(readlines)           comment(# read into array of lines)
+    ident(lines)operator(.)ident(each) reserved(do) operator(|)ident(it)operator(|)            comment(# modify lines)
+        ident(it)operator(.)ident(gsub!)operator(()regexp<delimiter(/)content(foo)delimiter(/)>operator(,) string<delimiter(')content(QQQ)delimiter(')>operator(\))
+    reserved(end)
+    ident(f)operator(.)ident(pos) operator(=) integer(0)                     comment(# back to start)
+    ident(f)operator(.)ident(print) ident(lines)                 comment(# write out modified lines)
+    ident(f)operator(.)ident(truncate)operator(()ident(f)operator(.)ident(pos)operator(\))             comment(# truncate to new length)
+reserved(end)                               comment(# file is automatically closed)
+comment(#-----------------------------)
+constant(File)operator(.)ident(open)operator(()string<delimiter(')content(itest)delimiter(')>operator(,) string<delimiter(')content(r+)delimiter(')>operator(\)) reserved(do) operator(|)ident(f)operator(|)   
+    ident(out) operator(=) string<delimiter(")delimiter(")>
+    ident(f)operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+        ident(out) operator(<<) ident(line)operator(.)ident(gsub)operator(()regexp<delimiter(/)content(DATE)delimiter(/)>operator(\)) operator({)constant(Time)operator(.)ident(now)operator(})
+    reserved(end)
+    ident(f)operator(.)ident(pos) operator(=) integer(0)                     
+    ident(f)operator(.)ident(print) ident(out)
+    ident(f)operator(.)ident(truncate)operator(()ident(f)operator(.)ident(pos)operator(\))             
+reserved(end)
+
+comment(# @@PLEAC@@_7.11)
+constant(File)operator(.)ident(open)operator(()string<delimiter(')content(infile)delimiter(')>operator(,) string<delimiter(')content(r+)delimiter(')>operator(\)) reserved(do) operator(|)ident(f)operator(|)
+    ident(f)operator(.)ident(flock) constant(File)operator(::)constant(LOCK_EX)
+    comment(# update file)
+reserved(end)
+comment(#-----------------------------)
+constant(File)operator(::)constant(LOCK_SH)     comment(# shared lock (for reading\))
+constant(File)operator(::)constant(LOCK_EX)     comment(# exclusive lock (for writing\))
+constant(File)operator(::)constant(LOCK_NB)     comment(# non-blocking request)
+constant(File)operator(::)constant(LOCK_UN)     comment(# free lock)
+comment(#-----------------------------)
+reserved(unless) ident(f)operator(.)ident(flock) constant(File)operator(::)constant(LOCK_EX) operator(|) constant(File)operator(::)constant(LOCK_NB)
+    ident(warn) string<delimiter(")content(can't get immediate lock: blocking ...)delimiter(")>
+    ident(f)operator(.)ident(flock) constant(File)operator(::)constant(LOCK_EX) 
+reserved(end)
+comment(#-----------------------------)
+constant(File)operator(.)ident(open)operator(()string<delimiter(')content(numfile)delimiter(')>operator(,) constant(File)operator(::)constant(RDWR)operator(|)constant(File)operator(::)constant(CREAT)operator(\)) reserved(do) operator(|)ident(f)operator(|)
+    ident(f)operator(.)ident(flock)operator(()constant(File)operator(::)constant(LOCK_EX)operator(\))
+    ident(num) operator(=) ident(f)operator(.)ident(gets)operator(.)ident(to_i) operator(||) integer(0)
+    ident(f)operator(.)ident(pos) operator(=) integer(0)
+    ident(f)operator(.)ident(truncate) integer(0)
+    ident(f)operator(.)ident(puts) ident(num) operator(+) integer(1)ident(q)
+reserved(end)
+
+
+comment(# @@PLEAC@@_7.12)
+ident(output_handle)operator(.)ident(sync) operator(=) pre_constant(true)
+comment(# Please note that like in Perl, $stderr is already unbuffered)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# seeme - demo stdio output buffering)
+global_variable($stdout)operator(.)ident(sync) operator(=) pre_constant(ARGV)operator(.)ident(size) operator(>) integer(0)
+ident(print) string<delimiter(")content(Now you don't see it...)delimiter(")>
+ident(sleep) integer(2)
+ident(puts) string<delimiter(")content(now you do)delimiter(")>
+comment(#-----------------------------)
+global_variable($stderr)operator(.)ident(sync) operator(=) pre_constant(true)
+ident(afile)operator(.)ident(sync) operator(=) pre_constant(false)
+comment(#-----------------------------)
+comment(# assume 'remote_con' is an interactive socket handle,)
+comment(# but 'disk_file' is a handle to a regular file.)
+ident(remote_con)operator(.)ident(sync) operator(=) pre_constant(true)       comment(# unbuffer for clarity)
+ident(disk_file)operator(.)ident(sync) operator(=) pre_constant(false)       comment(# buffered for speed)
+comment(#-----------------------------)
+ident(require) string<delimiter(')content(socket)delimiter(')>
+ident(sock) operator(=) constant(TCPSocket)operator(.)ident(new)operator(()string<delimiter(')content(www.ruby-lang.org)delimiter(')>operator(,) integer(80)operator(\))
+ident(sock)operator(.)ident(sync) operator(=) pre_constant(true)
+ident(sock)operator(.)ident(puts) string<delimiter(")content(GET /en/ HTTP/1.0 )char(\\n)char(\\n)delimiter(")>
+ident(resp) operator(=) ident(sock)operator(.)ident(read)
+ident(print) string<delimiter(")content(DOC IS: )inline<delimiter(#{)ident(resp)delimiter(})>char(\\n)delimiter(")>
+
+
+comment(# @@PLEAC@@_7.13)
+comment(#-----------------------------)
+comment(# assumes fh1, fh2, fh2 are oen IO objects)
+ident(nfound) operator(=) ident(select)operator(()operator([)global_variable($stdin)operator(,) ident(fh1)operator(,) ident(fh2)operator(,) ident(fh3)operator(])operator(,) pre_constant(nil)operator(,) pre_constant(nil)operator(,) integer(0)operator(\))
+ident(nfound)operator([)integer(0)operator(])operator(.)ident(each) reserved(do) operator(|)ident(file)operator(|)
+    reserved(case) ident(file)
+        reserved(when) ident(fh1)
+            comment(# do something with fh1)
+        reserved(when) ident(fh2)
+            comment(# do something with fh2)
+        reserved(when) ident(fh3)
+            comment(# do something with fh3)
+    reserved(end)
+reserved(end)
+comment(#-----------------------------)
+ident(input_files) operator(=) operator([)operator(])
+comment(# repeat next line for all in-files to poll)
+ident(input_files) operator(<<) ident(fh1)
+reserved(if) ident(nfound) operator(=) ident(select)operator(()ident(input_files)operator(,) pre_constant(nil)operator(,) pre_constant(nil)operator(,) integer(0)operator(\))
+    comment(# input ready on files in nfound[0])
+reserved(end)
+
+
+comment(# @@PLEAC@@_8.0)
+comment(#-----------------------------)
+comment(# datafile is a file or IO object)
+ident(datafile)operator(.)ident(readlines)operator(.)ident(each) operator({) operator(|)ident(line)operator(|)
+    ident(line)operator(.)ident(chomp!)
+    ident(size) operator(=) ident(line)operator(.)ident(length)
+    ident(puts) ident(size)
+operator(})
+comment(#-----------------------------)
+ident(datafile)operator(.)ident(readlines)operator(.)ident(each) operator({) operator(|)ident(line)operator(|)
+    ident(puts) ident(line)operator(.)ident(chomp!)operator(.)ident(length)
+operator(})
+comment(#-----------------------------)
+ident(lines) operator(=) ident(datafile)operator(.)ident(readlines)
+comment(#-----------------------------)
+ident(whole_file) operator(=) ident(file)operator(.)ident(read)
+comment(#-----------------------------)
+comment(# ruby -040 -e 'word = gets; puts "First word is #{word}"')
+comment(#-----------------------------)
+comment(# ruby -ne 'BEGIN { $/="%%\\n" }; $_.chomp; puts $_ if( $_=~/Unix/i\)' fortune.dat)
+comment(#-----------------------------)
+ident(handle)operator(.)ident(print) string<delimiter(")content(one)delimiter(")>operator(,) string<delimiter(")content(two)delimiter(")>operator(,) string<delimiter(")content(three)delimiter(")> comment(# "onetwothree")
+ident(puts) string<delimiter(")content(Baa baa black sheep.)delimiter(")>        comment(# sent to $stdout)
+comment(#-----------------------------)
+ident(buffer) operator(=) ident(handle)operator(.)ident(read)operator(()integer(4096)operator(\))
+ident(rv)     operator(=) ident(buffer)operator(.)ident(length)
+comment(#-----------------------------)
+ident(handle)operator(.)ident(truncate)operator(()ident(length)operator(\))
+ident(open)operator(()string<delimiter(")content(/tmp)inline<delimiter(#{)global_variable($$)delimiter(})>content(.pid)delimiter(")>operator(,) string<delimiter(')content(w)delimiter(')>operator(\)) operator({) operator(|)ident(handle)operator(|) ident(handle)operator(.)ident(truncate)operator(()ident(length)operator(\)) operator(})
+comment(#-----------------------------)
+ident(pos) operator(=) ident(datafile)operator(.)ident(pos)  comment(# tell is an alias of pos)
+ident(puts) string<delimiter(")content(I'm )inline<delimiter(#{)ident(pos)delimiter(})>content( bytes from the start of datafile)delimiter(")>
+comment(#-----------------------------)
+ident(logfile)operator(.)ident(seek)operator(()integer(0)operator(,) constant(IO)operator(::)constant(SEEK_END)operator(\))
+ident(datafile)operator(.)ident(seek)operator(()ident(pos)operator(\))  comment(#  IO::SEEK_SET is the default)
+ident(out)operator(.)ident(seek)operator(()integer(-20)operator(,) constant(IO)operator(::)constant(SEEK_CUR)operator(\))
+comment(#-----------------------------)
+ident(written) operator(=) ident(datafile)operator(.)ident(syswrite)operator(()ident(mystring)operator(\))
+ident(raise) constant(RunTimeError) reserved(unless) ident(written) operator(==) ident(mystring)operator(.)ident(length)
+ident(block) operator(=) ident(infile)operator(.)ident(sysread)operator(()integer(256)operator(\))   comment(# no equivalent to perl offset parameter in sysread)
+ident(puts) string<delimiter(")content(only read )inline<delimiter(#{)ident(block)operator(.)ident(length)delimiter(})>content( bytes)delimiter(")> reserved(if) integer(256) operator(!=) ident(block)operator(.)ident(length)
+comment(#-----------------------------)
+ident(pos) operator(=) ident(handle)operator(.)ident(sysseek)operator(()integer(0)operator(,) constant(IO)operator(::)constant(SEEK_CUR)operator(\))  comment(# don't change position)
+
+
+comment(# @@PLEAC@@_8.1)
+reserved(while) operator(()ident(line) operator(=) ident(fh)operator(.)ident(gets)operator(\))
+    ident(line)operator(.)ident(chomp!)
+    ident(nextline) operator(=) pre_constant(nil)
+    ident(line)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\\\)content($)delimiter(/)>operator(\)) operator({) operator(|)ident(match)operator(|) ident(nextline) operator(=) ident(fh)operator(.)ident(gets)operator(;) string<delimiter(')delimiter(')> operator(})
+    reserved(if) operator(()ident(nextline) operator(!=) pre_constant(nil)operator(\))
+        ident(line) operator(+=) ident(nextline) 
+        reserved(redo)
+    reserved(end)
+    comment(# process full record in line here)
+reserved(end)
+comment(#-----------------------------)
+comment(# DISTFILES = $(DIST_COMMON\) $(SOURCES\) $(HEADERS\) \\)
+comment(#         $(TEXINFOS\) $(INFOS\) $(MANS\) $(DATA\))
+comment(# DEP_DISTFILES = $(DIST_COMMON\) $(SOURCES\) $(HEADERS\) \\)
+comment(#         $(TEXINFOS\) $(INFO_DEPS\) $(MANS\) $(DATA\) \\)
+comment(#         $(EXTRA_DIST\))
+comment(#-----------------------------)
+ident(line)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\\\)char(\\s)content(*$)delimiter(/)>operator(,) string<delimiter(')delimiter(')>operator(\)) operator({)
+    comment(# as before)
+operator(})
+
+
+comment(# @@PLEAC@@_8.2)
+comment(#-----------------------------)
+ident(count) operator(=) shell<delimiter(`)content(wc -l < )inline<delimiter(#{)ident(filename)delimiter(})>delimiter(`)>
+ident(fail) string<delimiter(")content(wc failed: )inline<delimiter(#{)global_variable($?)delimiter(})>delimiter(")> reserved(if) global_variable($?) operator(!=) integer(0)
+ident(count)operator(.)ident(chomp!)
+comment(#-----------------------------)
+ident(count) operator(=) integer(0)
+constant(File)operator(.)ident(open)operator(()ident(file)operator(,) string<delimiter(')content(r)delimiter(')>operator(\)) operator({) operator(|)ident(fh)operator(|)
+    ident(count) operator(+=) integer(1) reserved(while) ident(fh)operator(.)ident(gets)
+operator(})
+comment(# count now holds the number of lines read)
+comment(#-----------------------------)
+ident(count) operator(=) integer(0)
+reserved(while) operator(()ident(chunk) operator(=) ident(file)operator(.)ident(sysread)operator(()integer(2)operator(**)integer(16)operator(\))operator(\)) 
+    ident(count) operator(+=) ident(chunk)operator(.)ident(count)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))
+reserved(end) reserved(rescue) constant(EOFError)
+comment(#-----------------------------)
+constant(File)operator(.)ident(open)operator(()ident(filename)operator(,)string<delimiter(')content(r)delimiter(')>operator(\)) operator({) operator(|)ident(fh)operator(|)
+    ident(count) operator(+=) integer(1) reserved(while) ident(fh)operator(.)ident(gets)
+operator(})
+comment(# count now holds the number of lines read)
+comment(#-----------------------------)
+comment(# As ruby doesn't quite have an equivalent to using a for)
+comment(# statement as in perl, I threw this in)
+ident(count) operator(=) constant(File)operator(.)ident(readlines)operator(()ident(filename)operator(\))operator(.)ident(size)
+comment(#-----------------------------)
+integer(1) reserved(while) ident(file)operator(.)ident(gets)
+ident(count) operator(=) global_variable($.)
+comment(#-----------------------------)
+global_variable($/) operator(=) string<delimiter(')delimiter(')>
+ident(open)operator(()ident(filename)operator(,) string<delimiter(')content(r)delimiter(')>operator(\)) operator({) operator(|)ident(fh)operator(|)
+    integer(1) reserved(while) ident(fh)operator(.)ident(gets)
+    ident(para_count) operator(=) global_variable($.)
+operator(}) reserved(rescue) ident(fail)operator(()string<delimiter(")content(can't open )inline<delimiter(#{)ident(filename)delimiter(})>content(: $!)delimiter(")>operator(\)) 
+comment(#-----------------------------)
+
+
+comment(# ^^PLEAC^^_8.3)
+comment(#-----------------------------)
+reserved(while) operator(()ident(gets)operator(\))
+    ident(split)operator(.)ident(each) operator({) operator(|)ident(chunk)operator(|)
+        comment(# do something with chunk)
+    operator(})
+reserved(end)
+comment(#-----------------------------)
+reserved(while) operator(()ident(gets)operator(\))
+    ident(gsub)operator(()regexp<delimiter(/)content(()char(\\w)content([)char(\\w)content('-]*\))delimiter(/)>operator(\)) operator({) operator(|)ident(word)operator(|)
+        comment(# do something with word)
+    operator(})
+reserved(end)
+comment(#-----------------------------)
+comment(# Make a word frequency count)
+comment(# normally hashes can be created using {} or just Hash.new)
+comment(# but we want the default value of an entry to be 0 instead )
+comment(# of nil. (nil can't be incremented\))
+ident(seen) operator(=) constant(Hash)operator(.)ident(new)operator(()integer(0)operator(\))
+reserved(while) operator(()ident(gets)operator(\))
+    ident(gsub)operator(()regexp<delimiter(/)content(()char(\\w)content([)char(\\w)content('-]*\))delimiter(/)>operator(\)) operator({) operator(|)ident(word)operator(|)
+        ident(seen)operator([)ident(word)operator(.)ident(downcase)operator(]) operator(+=) integer(1)
+    operator(})
+reserved(end)
+comment(# output hash in a descending numeric sort of its values)
+ident(seen)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(b)operator([)integer(1)operator(]) operator(<=>) ident(a)operator([)integer(1)operator(]) operator(})operator(.)ident(each) reserved(do) operator(|)ident(k)operator(,)ident(v)operator(|)
+    ident(printf)operator(()string<delimiter(")content(%5d %s)char(\\n)delimiter(")>operator(,) ident(v)operator(,) ident(k) operator(\))
+reserved(end)
+
+comment(#-----------------------------)
+comment(# Line frequency count)
+ident(seen) operator(=) constant(Hash)operator(.)ident(new)operator(()integer(0)operator(\))
+reserved(while) operator(()ident(gets)operator(\))
+    ident(seen)operator([)global_variable($_)operator(.)ident(downcase)operator(]) operator(+=) integer(1)
+reserved(end)
+ident(seen)operator(.)ident(sort) operator({) operator(|)ident(a)operator(,)ident(b)operator(|) ident(b)operator([)integer(1)operator(]) operator(<=>) ident(a)operator([)integer(1)operator(]) operator(})operator(.)ident(each) reserved(do) operator(|)ident(k)operator(,)ident(v)operator(|)
+    ident(printf)operator(()string<delimiter(")content(%5d %s)char(\\n)delimiter(")>operator(,) ident(v)operator(,) ident(k) operator(\))
+reserved(end)
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_8.4)
+comment(#-----------------------------)
+comment(# instead of file handle FILE, we can just)
+comment(# use a string containing the filename)
+constant(File)operator(.)ident(readlines)operator(()ident(file)operator(\))operator(.)ident(each) operator({) operator(|)ident(line)operator(|)
+    comment(# do something with line)
+operator(})
+comment(#-----------------------------)
+constant(File)operator(.)ident(readlines)operator(()ident(file)operator(\))operator(.)ident(reverse_each) operator({) operator(|)ident(line)operator(|)
+    comment(# do something with line)
+operator(})
+comment(#-----------------------------)
+comment(# the variable lines might have been created)
+comment(# this way)
+comment(# lines = File.readlines(file\))
+comment(#)
+comment(# normally one would use the reverse_each, but)
+comment(# if you insist on using a numerical index to)
+comment(# iterate over the lines array...)
+operator(()ident(lines)operator(.)ident(size) operator(-) integer(1)operator(\))operator(.)ident(downto)operator(()integer(0)operator(\)) operator({) operator(|)ident(i)operator(|)
+    ident(line) operator(=) ident(lines)operator([)ident(i)operator(])
+operator(})
+comment(#-----------------------------)
+comment(# the second readlines argument is a the )
+comment(# record separator $/, just like perl, a blank)
+comment(# separator splits the records into paragraphs)
+constant(File)operator(.)ident(readlines)operator(()ident(file)operator(,) string<delimiter(')delimiter(')>operator(\))operator(.)ident(each) operator({) operator(|)ident(paragraph)operator(|)
+    comment(# do something with paragraph)
+    ident(puts) string<delimiter(")content(->Paragraph )inline<delimiter(#{)ident(paragraph)delimiter(})>delimiter(")>
+operator(})
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_8.6)
+
+global_variable($/) operator(=) string<delimiter(")content(%)char(\\n)delimiter(")>operator(;)
+ident(srand)operator(;)
+
+constant(File)operator(.)ident(open)operator(()string<delimiter(')content(/usr/share/fortune/humorists)delimiter(')>operator(\))operator(.)ident(each) reserved(do) operator(|)ident(line)operator(|)
+    ident(adage) operator(=) ident(line) reserved(if) ident(rand)operator(()global_variable($.)operator(\)) operator(<) integer(1)
+reserved(end)
+
+ident(puts) ident(adage)operator(;)
+
+
+comment(# @@PLEAC@@_8.10)
+reserved(begin)
+    ident(fh) operator(=) constant(File)operator(.)ident(open)operator(()ident(file)operator(,) string<delimiter(")content(r+)delimiter(")>operator(\))
+    ident(addr) operator(=) ident(fh)operator(.)ident(tell) reserved(unless) ident(fh)operator(.)ident(eof) reserved(while) ident(fh)operator(.)ident(gets)
+    ident(fh)operator(.)ident(truncate)operator(()ident(addr)operator(\))
+reserved(rescue) constant(SystemCallError)
+    global_variable($stderr)operator(.)ident(puts) string<delimiter(")escape(#)global_variable($!)delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.0)
+ident(entry) operator(=) constant(File)operator(.)ident(stat)operator(()string<delimiter(")content(/usr/bin/vi)delimiter(")>operator(\))
+ident(entry) operator(=) constant(File)operator(.)ident(stat)operator(()string<delimiter(")content(/usr/bin)delimiter(")>operator(\))
+ident(entry) operator(=) constant(File)operator(.)ident(stat)operator(()constant(INFILE)operator(\))
+
+ident(entry) operator(=) constant(File)operator(.)ident(stat)operator(()string<delimiter(")content(/usr/bin/vi)delimiter(")>operator(\))
+ident(ctime) operator(=) ident(entry)operator(.)ident(ctime)
+ident(size)  operator(=) ident(entry)operator(.)ident(size)
+
+ident(f) operator(=) constant(File)operator(.)ident(open)operator(()ident(filename)operator(,) string<delimiter(")content(r)delimiter(")>operator(\))
+
+comment(## There is no -T equivalent in Ruby, but we can still test emptiness)
+reserved(if) ident(test)operator(()integer(?s)operator(,) ident(filename)operator(\))
+  ident(puts) string<delimiter(")inline<delimiter(#{)ident(filename)delimiter(})>content( doesn't have text in it.)delimiter(")>
+  ident(exit)
+reserved(end)
+
+constant(Dir)operator(.)ident(new)operator(()string<delimiter(")content(/usr/bin)delimiter(")>operator(\))operator(.)ident(each) reserved(do) operator(|)ident(filename)operator(|)
+  ident(puts) string<delimiter(")content(Inside /usr/bin is something called )inline<delimiter(#{)ident(filename)delimiter(})>delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.1)
+ident(file) operator(=) constant(File)operator(.)ident(stat)operator(()string<delimiter(")content(filename)delimiter(")>operator(\))
+ident(readtime)operator(,) ident(writetime) operator(=) ident(file)operator(.)ident(atime)operator(,) ident(file)operator(.)ident(mtime)
+ident(file)operator(.)ident(utime)operator(()ident(readtime)operator(,) ident(writetime)operator(\))  
+
+constant(SECONDS_PER_DAY) operator(=) integer(60) operator(*) integer(60) operator(*) integer(24)
+ident(file) operator(=) constant(File)operator(.)ident(stat)operator(()string<delimiter(")content(filename)delimiter(")>operator(\))
+ident(atime)operator(,) ident(mtime) operator(=) ident(file)operator(.)ident(atime)operator(,) ident(file)operator(.)ident(mtime)
+
+ident(atime) operator(-=) integer(7) operator(*) constant(SECONDS_PER_DAY)
+ident(mtime) operator(-=) integer(7) operator(*) constant(SECONDS_PER_DAY)
+
+constant(File)operator(.)ident(utime)operator(()ident(atime)operator(,) ident(mtime)operator(,) ident(file)operator(\))
+ident(mtime) operator(=) constant(File)operator(.)ident(stat)operator(()ident(file)operator(\))operator(.)ident(mtime)
+constant(File)operator(.)ident(utime)operator(()constant(Time)operator(.)ident(new)operator(,) ident(mtime)operator(,) ident(file)operator(\))
+constant(File)operator(.)ident(utime)operator(()constant(Time)operator(.)ident(new)operator(,) constant(File)operator(.)ident(stat)operator(()string<delimiter(")content(testfile)delimiter(")>operator(\))operator(.)ident(mtime)operator(,) ident(file)operator(\))
+
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(## uvi - vi a file without changing it's access times)
+
+reserved(if) pre_constant(ARGV)operator(.)ident(length) operator(!=) integer(1)
+  ident(puts) string<delimiter(")content(usage: uvi filename)delimiter(")>
+  ident(exit)
+reserved(end)
+ident(file) operator(=) pre_constant(ARGV)operator([)integer(0)operator(])
+ident(atime)operator(,) ident(mtime) operator(=) constant(File)operator(.)ident(stat)operator(()ident(file)operator(\))operator(.)ident(atime)operator(,) constant(File)operator(.)ident(stat)operator(()ident(file)operator(\))operator(.)ident(mtime)
+ident(system)operator(()constant(ENV)operator([)string<delimiter(")content(EDITOR)delimiter(")>operator(]) operator(||) string<delimiter(")content(vi)delimiter(")>operator(,) ident(file)operator(\))
+constant(File)operator(.)ident(utime)operator(()ident(atime)operator(,) ident(mtime)operator(,) ident(file)operator(\))
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_9.2)
+constant(File)operator(.)ident(unlink)operator(()constant(FILENAME)operator(\))
+
+ident(err_flg) operator(=) pre_constant(false)
+ident(filenames)operator(.)ident(each) reserved(do) operator(|)ident(file)operator(|)
+  reserved(begin)
+    constant(File)operator(.)ident(unlink)operator(()ident(file)operator(\))
+  reserved(rescue)
+    ident(err_flg) operator(=) global_variable($!)
+  reserved(end)
+reserved(end)
+ident(err_flg) reserved(and) ident(raise) string<delimiter(")content(Couldn't unlink all of )inline<delimiter(#{)ident(filenames)operator(.)ident(join)operator(()string<delimiter(")content( )delimiter(")>operator(\))delimiter(})>content(: )inline<delimiter(#{)ident(err_flg)delimiter(})>delimiter(")>
+
+constant(File)operator(.)ident(unlink)operator(()ident(file)operator(\))
+
+ident(count) operator(=) ident(filenames)operator(.)ident(length)
+ident(filenames)operator(.)ident(each) reserved(do) operator(|)ident(file)operator(|)
+  reserved(begin)
+    constant(File)operator(.)ident(unlink)operator(()ident(file)operator(\))
+  reserved(rescue)
+    ident(count) operator(-=) integer(1)
+  reserved(end)
+reserved(end)
+reserved(if) ident(count) operator(!=) ident(filenames)operator(.)ident(length)
+  constant(STDERR)operator(.)ident(puts) string<delimiter(")content(could only delete )inline<delimiter(#{)ident(count)delimiter(})>content( of )inline<delimiter(#{)ident(filenames)operator(.)ident(length)delimiter(})>content( files)delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.3)
+ident(require) string<delimiter(")content(ftools)delimiter(")>
+constant(File)operator(.)ident(copy)operator(()ident(oldfile)operator(,) ident(newfile)operator(\))
+
+ident(infile)  operator(=) constant(File)operator(.)ident(open)operator(()ident(oldfile)operator(,) string<delimiter(")content(r)delimiter(")>operator(\))
+ident(outfile) operator(=) constant(File)operator(.)ident(open)operator(()ident(newfile)operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+
+ident(blksize) operator(=) ident(infile)operator(.)ident(stat)operator(.)ident(blksize)
+comment(# This doesn't handle partial writes or ^Z)
+comment(# like the Perl version does.)
+reserved(while) operator(()ident(line) operator(=) ident(infile)operator(.)ident(read)operator(()ident(blksize)operator(\))operator(\))
+  ident(outfile)operator(.)ident(write)operator(()ident(line)operator(\))
+reserved(end)
+
+ident(infile)operator(.)ident(close)
+ident(outfile)operator(.)ident(close)
+
+ident(system)operator(()string<delimiter(")content(cp )inline<delimiter(#{)ident(oldfile)delimiter(})>content( )inline<delimiter(#{)ident(newfile)delimiter(})>delimiter(")>operator(\))    comment(# unix)
+ident(system)operator(()string<delimiter(")content(copy )inline<delimiter(#{)ident(oldfile)delimiter(})>content( )inline<delimiter(#{)ident(newfile)delimiter(})>delimiter(")>operator(\))  comment(# dos, vms)
+
+ident(require) string<delimiter(")content(ftools)delimiter(")>
+constant(File)operator(.)ident(copy)operator(()string<delimiter(")content(datafile.dat)delimiter(")>operator(,) string<delimiter(")content(datafile.bak)delimiter(")>operator(\))
+constant(File)operator(.)ident(move)operator(()string<delimiter(")content(datafile.new)delimiter(")>operator(,) string<delimiter(")content(datafile.dat)delimiter(")>operator(\))
+
+
+comment(# @@PLEAC@@_9.4)
+global_variable($seen) operator(=) operator({)operator(}) comment(# must use global var to be seen inside of method below)
+
+reserved(def) method(do_my_thing)operator(()ident(filename)operator(\))
+    ident(dev)operator(,) ident(ino) operator(=) constant(File)operator(.)ident(stat)operator(()ident(filename)operator(\))operator(.)ident(dev)operator(,) constant(File)operator(.)ident(stat)operator(()ident(filename)operator(\))operator(.)ident(ino)
+    reserved(unless) global_variable($seen)operator([)operator([)ident(dev)operator(,) ident(ino)operator(])operator(])
+        comment(# do something with $filename because we haven't)
+        comment(# seen it before)
+    reserved(end)
+    global_variable($seen)operator([)operator([)ident(dev)operator(,) ident(ino)operator(])operator(]) operator(=) global_variable($seen)operator([)operator([)ident(dev)operator(,) ident(ino)operator(])operator(])operator(.)ident(to_i) operator(+) integer(1)
+reserved(end)
+
+ident(files)operator(.)ident(each) reserved(do) operator(|)ident(filename)operator(|)
+    ident(dev)operator(,) ident(ino) operator(=) constant(File)operator(.)ident(stat)operator(()ident(filename)operator(\))operator(.)ident(dev)operator(,) constant(File)operator(.)ident(stat)operator(()ident(filename)operator(\))operator(.)ident(ino)
+    reserved(if) operator(!)global_variable($seen)operator(.)ident(has_key?)operator(()operator([)ident(dev)operator(,) ident(ino)operator(])operator(\))
+        global_variable($seen)operator([)operator([)ident(dev)operator(,) ident(ino)operator(])operator(]) operator(=) operator([)operator(])
+    reserved(end)
+    global_variable($seen)operator([)operator([)ident(dev)operator(,) ident(ino)operator(])operator(])operator(.)ident(push)operator(()ident(filename)operator(\))
+reserved(end)
+
+global_variable($seen)operator(.)ident(keys)operator(.)ident(sort)operator(.)ident(each) reserved(do) operator(|)ident(devino)operator(|)
+    ident(ino)operator(,) ident(dev) operator(=) ident(devino)
+    reserved(if) global_variable($seen)operator([)ident(devino)operator(])operator(.)ident(length) operator(>) integer(1)
+        comment(# $seen[devino] is a list of filenames for the same file)
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.5)
+constant(Dir)operator(.)ident(open)operator(()ident(dirname)operator(\)) reserved(do) operator(|)ident(dir)operator(|)
+    ident(dir)operator(.)ident(each) reserved(do) operator(|)ident(file)operator(|)
+        comment(# do something with dirname/file)
+        ident(puts) ident(file)
+    reserved(end)
+reserved(end)
+comment(# Dir.close is automatic)
+
+comment(# No -T equivalent in Ruby)
+
+ident(dir)operator(.)ident(each) reserved(do) operator(|)ident(file)operator(|)
+    reserved(next) reserved(if) ident(file) operator(=)operator(~) regexp<delimiter(/)content(^)char(\\.)char(\\.)content(?$)delimiter(/)>
+    comment(# ...)
+reserved(end)
+
+reserved(def) method(plainfiles)operator(()ident(dir)operator(\))
+    ident(dh) operator(=) constant(Dir)operator(.)ident(open)operator(()ident(dir)operator(\))
+    ident(dh)operator(.)ident(entries)operator(.)ident(grep)operator(()regexp<delimiter(/)content(^[^.])delimiter(/)>operator(\))operator(.)
+        ident(map)      operator({)operator(|)ident(file)operator(|) string<delimiter(")inline<delimiter(#{)ident(dir)delimiter(})>content(/)inline<delimiter(#{)ident(file)delimiter(})>delimiter(")>operator(})operator(.)
+        ident(find_all) operator({)operator(|)ident(file)operator(|) ident(test)operator(()integer(?f)operator(,) ident(file)operator(\))operator(})operator(.)
+        ident(sort)
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.6)
+ident(list) operator(=) constant(Dir)operator(.)ident(glob)operator(()string<delimiter(")content(*.c)delimiter(")>operator(\))
+
+ident(dir) operator(=) constant(Dir)operator(.)ident(open)operator(()ident(path)operator(\))
+ident(files) operator(=) ident(dir)operator(.)ident(entries)operator(.)ident(grep)operator(()regexp<delimiter(/)char(\\.)content(c$)delimiter(/)>operator(\))
+ident(dir)operator(.)ident(close)
+
+ident(files) operator(=) constant(Dir)operator(.)ident(glob)operator(()string<delimiter(")content(*.c)delimiter(")>operator(\))
+ident(files) operator(=) constant(Dir)operator(.)ident(open)operator(()ident(path)operator(\))operator(.)ident(entries)operator(.)ident(grep)operator(()regexp<delimiter(/)char(\\.)content([ch]$)delimiter(/)modifier(i)>operator(\))
+
+ident(dir) operator(=) constant(Dir)operator(.)ident(new)operator(()ident(path)operator(\))
+ident(files) operator(=) ident(dir)operator(.)ident(entries)operator(.)ident(grep)operator(()regexp<delimiter(/)char(\\.)content([ch]$)delimiter(/)modifier(i)>operator(\))
+
+reserved(begin)
+  ident(d) operator(=) constant(Dir)operator(.)ident(open)operator(()ident(dir)operator(\))
+reserved(rescue) constant(Errno)operator(::)constant(ENOENT)
+  ident(raise) string<delimiter(")content(Couldn't open )inline<delimiter(#{)ident(dir)delimiter(})>content( for reading: )inline<delimiter(#{)global_variable($!)delimiter(})>delimiter(")>
+reserved(end)
+
+ident(files) operator(=) operator([)operator(])
+ident(d)operator(.)ident(each) reserved(do) operator(|)ident(file)operator(|)
+  ident(puts) ident(file)
+  reserved(next) reserved(unless) ident(file) operator(=)operator(~) regexp<delimiter(/)char(\\.)content([ch]$)delimiter(/)modifier(i)>
+
+  ident(filename) operator(=) string<delimiter(")inline<delimiter(#{)ident(dir)delimiter(})>content(/)inline<delimiter(#{)ident(file)delimiter(})>delimiter(")>
+  comment(# There is no -T equivalent in Ruby, but we can still test emptiness)
+  ident(files)operator(.)ident(push)operator(()ident(filename)operator(\)) reserved(if) ident(test)operator(()integer(?s)operator(,) ident(filename)operator(\))
+reserved(end)
+
+ident(dirs)operator(.)ident(entries)operator(.)ident(grep)operator(()regexp<delimiter(/)content(^)char(\\d)content(+$)delimiter(/)>operator(\))operator(.)
+             ident(map)    operator({) operator(|)ident(file)operator(|) operator([)ident(file)operator(,) string<delimiter(")inline<delimiter(#{)ident(path)delimiter(})>content(/)inline<delimiter(#{)ident(file)delimiter(})>delimiter(")>operator(])operator(}) operator(.)
+             ident(select) operator({) operator(|)ident(file)operator(|) ident(test)operator(()integer(?d)operator(,) ident(file)operator([)integer(1)operator(])operator(\)) operator(})operator(.)
+             ident(sort)   operator({) operator(|)ident(a)operator(,)ident(b)operator(|)  ident(a)operator([)integer(0)operator(]) operator(<=>) ident(b)operator([)integer(0)operator(]) operator(})operator(.)
+             ident(map)    operator({) operator(|)ident(file)operator(|) ident(file)operator([)integer(1)operator(]) operator(})
+
+
+comment(# @@PLEAC@@_9.7)
+ident(require) string<delimiter(')content(find)delimiter(')>
+constant(Find)operator(.)ident(find)operator(()ident(dirlist)operator(\)) reserved(do) operator(|)ident(file)operator(|)
+  comment(# do whatever)
+reserved(end)
+
+ident(require) string<delimiter(')content(find)delimiter(')>
+ident(argv) operator(=) pre_constant(ARGV)operator(.)ident(empty?) operator(?) string<delimiter(%w{)content(.)delimiter(})> operator(:) pre_constant(ARGV)
+constant(Find)operator(.)ident(find)operator(()operator(*)ident(argv)operator(\)) reserved(do) operator(|)ident(file)operator(|)
+  ident(print) ident(file)operator(,) operator(()ident(test)operator(()integer(?d)operator(,) ident(file)operator(\)) operator(?) string<delimiter(")content(/)char(\\n)delimiter(")> operator(:) string<delimiter(")char(\\n)delimiter(")>operator(\))
+reserved(end)
+
+ident(require) string<delimiter(')content(find)delimiter(')>
+ident(argv) operator(=) pre_constant(ARGV)operator(.)ident(empty?) operator(?) string<delimiter(%w{)content(.)delimiter(})> operator(:) pre_constant(ARGV)
+ident(sum) operator(=) integer(0)
+constant(Find)operator(.)ident(find)operator(()operator(*)ident(argv)operator(\)) reserved(do) operator(|)ident(file)operator(|)
+  ident(size) operator(=) ident(test)operator(()integer(?s)operator(,) ident(file)operator(\)) operator(||) integer(0)
+  ident(sum) operator(+=) ident(size)
+reserved(end)
+ident(puts) string<delimiter(")inline<delimiter(#{)ident(argv)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))delimiter(})>content( contains )inline<delimiter(#{)ident(sum)delimiter(})>content( bytes)delimiter(")>
+
+ident(require) string<delimiter(')content(find)delimiter(')>
+ident(argv) operator(=) pre_constant(ARGV)operator(.)ident(empty?) operator(?) string<delimiter(%w{)content(.)delimiter(})> operator(:) pre_constant(ARGV)
+ident(saved_size)operator(,) ident(saved_name) operator(=) integer(-1)operator(,) string<delimiter(")delimiter(")>
+constant(Find)operator(.)ident(find)operator(()operator(*)ident(argv)operator(\)) reserved(do) operator(|)ident(file)operator(|)
+  ident(size) operator(=) ident(test)operator(()integer(?s)operator(,) ident(file)operator(\)) operator(||) integer(0)
+  reserved(next) reserved(unless) ident(test)operator(()integer(?f)operator(,) ident(file)operator(\)) operator(&&) ident(size) operator(>) ident(saved_size)
+  ident(saved_size) operator(=) ident(size)
+  ident(saved_name) operator(=) ident(file)
+reserved(end)
+ident(puts) string<delimiter(")content(Biggest file )inline<delimiter(#{)ident(saved_name)delimiter(})>content( in )inline<delimiter(#{)ident(argv)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))delimiter(})>content( is )inline<delimiter(#{)ident(saved_size)delimiter(})>delimiter(")>
+
+ident(require) string<delimiter(')content(find)delimiter(')>
+ident(argv) operator(=) pre_constant(ARGV)operator(.)ident(empty?) operator(?) string<delimiter(%w{)content(.)delimiter(})> operator(:) pre_constant(ARGV)
+ident(age)operator(,) ident(name) operator(=) pre_constant(nil)
+constant(Find)operator(.)ident(find)operator(()operator(*)ident(argv)operator(\)) reserved(do) operator(|)ident(file)operator(|)
+  ident(mtime) operator(=) constant(File)operator(.)ident(stat)operator(()ident(file)operator(\))operator(.)ident(mtime)
+  reserved(next) reserved(if) ident(age) operator(&&) ident(age) operator(>) ident(mtime)
+  ident(age) operator(=) ident(mtime)
+  ident(name) operator(=) ident(file)
+reserved(end)
+ident(puts) string<delimiter(")inline<delimiter(#{)ident(name)delimiter(})>content( )inline<delimiter(#{)ident(age)delimiter(})>delimiter(")>
+
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# fdirs - find all directories)
+ident(require) string<delimiter(')content(find)delimiter(')>
+ident(argv) operator(=) pre_constant(ARGV)operator(.)ident(empty?) operator(?) string<delimiter(%w{)content(.)delimiter(})> operator(:) pre_constant(ARGV)
+constant(File)operator(.)ident(find)operator(()operator(*)ident(argv)operator(\)) operator({) operator(|)ident(file)operator(|) ident(puts) ident(file) reserved(if) ident(test)operator(()integer(?d)operator(,) ident(file)operator(\)) operator(})
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_9.8)
+ident(require) string<delimiter(')content(fileutils)delimiter(')>
+
+ident(puts) string<delimiter(")content(Usage )inline<delimiter(#{)global_variable($0)delimiter(})>content( dir ...)delimiter(")> reserved(if) pre_constant(ARGV)operator(.)ident(empty?)
+pre_constant(ARGV)operator(.)ident(each) reserved(do) operator(|)ident(dir)operator(|)
+  constant(FileUtils)operator(.)ident(rmtree)operator(()ident(dir)operator(\))
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.9)
+ident(require) string<delimiter(')content(ftools)delimiter(')>
+ident(names)operator(.)ident(each) reserved(do) operator(|)ident(file)operator(|)
+  ident(newname) operator(=) ident(file)
+  reserved(begin)
+    constant(File)operator(.)ident(move)operator(()ident(file)operator(,) ident(newname)operator(\))
+  reserved(rescue) constant(Errno)operator(::)constant(EPERM)
+    global_variable($stderr)operator(.)ident(puts) string<delimiter(")content(Couldn't rename )inline<delimiter(#{)ident(file)delimiter(})>content( to )inline<delimiter(#{)ident(newname)delimiter(})>content(: )inline<delimiter(#{)global_variable($!)delimiter(})>delimiter(")>
+  reserved(end)
+reserved(end)
+
+ident(require) string<delimiter(')content(ftools)delimiter(')>
+ident(op) operator(=) pre_constant(ARGV)operator(.)ident(empty?) operator(?) operator(()ident(raise) string<delimiter(")content(Usage: rename expr [files])char(\\n)delimiter(")>operator(\)) operator(:) pre_constant(ARGV)operator(.)ident(shift)
+ident(argv) operator(=) pre_constant(ARGV)operator(.)ident(empty?) operator(?) global_variable($stdin)operator(.)ident(readlines)operator(.)ident(map) operator({) operator(|)ident(f)operator(|) ident(f)operator(.)ident(chomp) operator(}) operator(:) pre_constant(ARGV)
+ident(argv)operator(.)ident(each) reserved(do) operator(|)ident(file)operator(|)
+  ident(was) operator(=) ident(file)
+  ident(file) operator(=) ident(eval)operator(()string<delimiter(")content(file.)inline<delimiter(#{)ident(op)delimiter(})>delimiter(")>operator(\))
+  constant(File)operator(.)ident(move)operator(()ident(was)operator(,) ident(file)operator(\)) reserved(unless) ident(was) operator(==) ident(file)
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.10)
+ident(base) operator(=) constant(File)operator(.)ident(basename)operator(()ident(path)operator(\))
+ident(dir)  operator(=) constant(File)operator(.)ident(dirname)operator(()ident(path)operator(\))
+comment(# ruby has no fileparse equivalent)
+ident(dir)operator(,) ident(base) operator(=) constant(File)operator(.)ident(split)operator(()ident(path)operator(\))
+ident(ext) operator(=) ident(base)operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\.)content(.*$)delimiter(/)>operator(\))operator(.)ident(to_s)
+
+ident(path) operator(=) string<delimiter(')content(/usr/lib/libc.a)delimiter(')>
+ident(file) operator(=) constant(File)operator(.)ident(basename)operator(()ident(path)operator(\))
+ident(dir)  operator(=) constant(File)operator(.)ident(dirname)operator(()ident(path)operator(\))
+
+ident(puts) string<delimiter(")content(dir is )inline<delimiter(#{)ident(dir)delimiter(})>content(, file is )inline<delimiter(#{)ident(file)delimiter(})>delimiter(")>
+comment(# dir is /usr/lib, file is libc.a)
+
+ident(path) operator(=) string<delimiter(')content(/usr/lib/libc.a)delimiter(')>
+ident(dir)operator(,) ident(filename) operator(=) constant(File)operator(.)ident(split)operator(()ident(path)operator(\))
+ident(name)operator(,) ident(ext) operator(=) ident(filename)operator(.)ident(split)operator(()regexp<delimiter(/)content((?=)char(\\.)content(\))delimiter(/)>operator(\))
+ident(puts) string<delimiter(")content(dir is )inline<delimiter(#{)ident(dir)delimiter(})>content(, name is )inline<delimiter(#{)ident(name)delimiter(})>content(, ext is )inline<delimiter(#{)ident(ext)delimiter(})>delimiter(")>
+comment(#   NOTE: The Ruby code prints)
+comment(#   dir is /usr/lib, name is libc, extension is .a)
+comment(#     while the Perl code prints a '/' after the directory name)
+comment(#   dir is /usr/lib/, name is libc, extension is .a)
+
+comment(# No fileparse_set_fstype(\) equivalent in ruby)
+
+reserved(def) method(extension)operator(()ident(path)operator(\))
+    ident(ext) operator(=) ident(path)operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\.)content(.*$)delimiter(/)>operator(\))operator(.)ident(to_s)
+    ident(ext)operator(.)ident(sub)operator(()regexp<delimiter(/)content(^)char(\\.)delimiter(/)>operator(,) string<delimiter(")delimiter(")>operator(\))
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.11)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# symirror - build spectral forest of symlinks)
+
+ident(require) string<delimiter(')content(find)delimiter(')>
+ident(require) string<delimiter(')content(fileutils)delimiter(')>
+
+ident(raise) string<delimiter(")content(usage: )inline<delimiter(#{)global_variable($0)delimiter(})>content( realdir mirrordir)delimiter(")> reserved(unless) pre_constant(ARGV)operator(.)ident(size) operator(==) integer(2)
+
+ident(srcdir)operator(,)ident(dstdir) operator(=) pre_constant(ARGV)
+ident(srcmode) operator(=) constant(File)operator(::)ident(stat)operator(()ident(srcdir)operator(\))operator(.)ident(mode)
+constant(Dir)operator(.)ident(mkdir)operator(()ident(dstdir)operator(,) ident(srcmode) operator(&) integer(07777)operator(\)) reserved(unless) ident(test)operator(()integer(?d)operator(,) ident(dstdir)operator(\))
+
+comment(# fix relative paths)
+constant(Dir)operator(.)ident(chdir)operator(()ident(srcdir)operator(\)) operator({)ident(srcdir) operator(=) constant(Dir)operator(.)ident(pwd)operator(})
+constant(Dir)operator(.)ident(chdir)operator(()ident(dstdir)operator(\)) operator({)ident(dstdir) operator(=) constant(Dir)operator(.)ident(pwd)operator(})
+
+constant(Find)operator(.)ident(find)operator(()ident(srcdir)operator(\)) reserved(do) operator(|)ident(srcfile)operator(|) 
+    reserved(if) ident(test)operator(()integer(?d)operator(,) ident(srcfile)operator(\))
+        ident(dest) operator(=) ident(srcfile)operator(.)ident(sub)operator(()regexp<delimiter(/)content(^)inline<delimiter(#{)ident(srcdir)delimiter(})>delimiter(/)>operator(,) ident(dstdir)operator(\))
+        ident(dmode) operator(=) constant(File)operator(::)ident(stat)operator(()ident(srcfile)operator(\))operator(.)ident(mode) operator(&) integer(07777)
+        constant(Dir)operator(.)ident(mkdir)operator(()ident(dest)operator(,) ident(dmode)operator(\)) reserved(unless) ident(test)operator(()integer(?d)operator(,) ident(dest)operator(\))
+        ident(a) operator(=) constant(Dir)operator([)string<delimiter(")inline<delimiter(#{)ident(srcfile)delimiter(})>content(/*)delimiter(")>operator(])operator(.)ident(reject)operator({)operator(|)ident(f)operator(|) ident(test)operator(()integer(?d)operator(,) ident(f)operator(\))operator(})
+        constant(FileUtils)operator(.)ident(ln_s)operator(()ident(a)operator(,) ident(dest)operator(\))
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_9.12)
+comment(# we use the Getopt/Declare library here for convenience:)
+comment(#   http://raa.ruby-lang.org/project/getoptdeclare/)
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby -w)
+comment(# lst - list sorted directory contents (depth first\))
+
+ident(require) string<delimiter(')content(find)delimiter(')>
+ident(require) string<delimiter(')content(etc)delimiter(')>
+ident(require) string<delimiter(")content(Getopt/Declare)delimiter(")>
+
+comment(# Note: in the option-spec below there must by at least one hard)
+comment(# tab in between each -option and its description. For example)
+comment(#    -i <tab> read from stdin)
+
+ident(opts) operator(=) constant(Getopt)operator(::)constant(Declare)operator(.)ident(new)operator(()string<delimiter(<<'EOPARAM')>operator(\))string<content(
+    ============
+    Input Format:
+        -i	read from stdin
+    ============
+    Output Format:
+        -l	long listing
+        -r	reverse listing
+    ============
+    Sort on: (one of\)
+        -m	mtime (modify time - default\)
+                {$sort_criteria = :mtime}
+        -u	atime (access time\)
+                {$sort_criteria = :atime}
+        -c	ctime (inode change time\)
+                {$sort_criteria = :ctime}
+        -s	size
+                {$sort_criteria = :size}
+        [mutex: -m -u -c -s]
+)delimiter(
+EOPARAM)>
+
+global_variable($sort_criteria) operator(||=) symbol(:mtime)
+ident(files) operator(=) operator({)operator(})
+constant(DIRS) operator(=) ident(opts)operator([)string<delimiter(')content(-i)delimiter(')>operator(]) operator(?) global_variable($stdin)operator(.)ident(readlines)operator(.)ident(map)operator({)operator(|)ident(f)operator(|)ident(f)operator(.)ident(chomp!)operator(}) operator(:) pre_constant(ARGV)
+constant(DIRS)operator(.)ident(each) reserved(do) operator(|)ident(dir)operator(|)
+    constant(Find)operator(.)ident(find)operator(()ident(dir)operator(\)) reserved(do) operator(|)ident(ent)operator(|)
+        ident(files)operator([)ident(ent)operator(]) operator(=) constant(File)operator(::)ident(stat)operator(()ident(ent)operator(\))
+    reserved(end)
+reserved(end)
+ident(entries) operator(=) ident(files)operator(.)ident(keys)operator(.)ident(sort_by)operator({)operator(|)ident(f)operator(|) ident(files)operator([)ident(f)operator(])operator(.)ident(send)operator(()global_variable($sort_criteria)operator(\))operator(})
+ident(entries) operator(=) ident(entries)operator(.)ident(reverse) reserved(unless) ident(opts)operator([)string<delimiter(')content(-r)delimiter(')>operator(])
+
+ident(entries)operator(.)ident(each) reserved(do) operator(|)ident(ent)operator(|)
+    reserved(unless) ident(opts)operator([)string<delimiter(')content(-l)delimiter(')>operator(])
+        ident(puts) ident(ent)
+        reserved(next)
+    reserved(end)
+    ident(stats) operator(=) ident(files)operator([)ident(ent)operator(])
+    ident(ftime) operator(=) ident(stats)operator(.)ident(send)operator(()global_variable($sort_criteria) operator(==) symbol(:size) operator(?) symbol(:mtime) operator(:) global_variable($sort_criteria)operator(\))
+    ident(printf) string<delimiter(")content(%6d %04o %6d %8s %8s %8d %s %s)char(\\n)delimiter(")>operator(,)
+        ident(stats)operator(.)ident(ino)operator(,)
+        ident(stats)operator(.)ident(mode) operator(&) integer(07777)operator(,)
+        ident(stats)operator(.)ident(nlink)operator(,)
+        constant(ETC)operator(::)constant(PASSWD)operator([)ident(stats)operator(.)ident(uid)operator(])operator(.)ident(name)operator(,)
+        constant(ETC)operator(::)constant(GROUP)operator([)ident(stats)operator(.)ident(gid)operator(])operator(.)ident(name)operator(,)
+        ident(stats)operator(.)ident(size)operator(,)
+        ident(ftime)operator(.)ident(strftime)operator(()string<delimiter(")content(%a %b %d %H:%M:%S %Y)delimiter(")>operator(\))operator(,)
+        ident(ent)
+reserved(end)
+
+
+comment(# @@PLEAC@@_10.0)
+reserved(def) method(hello)
+    global_variable($greeted) operator(+=) integer(1)      comment(# in Ruby, a variable beginning with $ is global (can be any type of course\))
+    ident(puts) string<delimiter(")content(hi there!)delimiter(")>
+reserved(end)
+
+comment(# We need to initialize $greeted before it can be used, because "+=" is waiting a Numeric object)
+global_variable($greeted) operator(=) integer(0)
+ident(hello)                  comment(# note that appending (\) is optional to function calls with no parameters)
+
+
+comment(# @@PLEAC@@_10.1)
+comment(# In Ruby, parameters are named anyway)
+reserved(def) method(hypotenuse)operator(()ident(side1)operator(,) ident(side2)operator(\))
+    constant(Math)operator(.)ident(sqrt)operator(()ident(side1)operator(**)integer(2) operator(+) ident(side2)operator(**)integer(2)operator(\))    comment(# the sqrt function comes from the Math module)
+reserved(end)
+ident(diag) operator(=) ident(hypotenuse)operator(()integer(3)operator(,) integer(4)operator(\))
+
+ident(puts) ident(hypotenuse)operator(()integer(3)operator(,) integer(4)operator(\))
+
+ident(a) operator(=) operator([)integer(3)operator(,) integer(4)operator(])
+ident(print) ident(hypotenuse)operator(()operator(*)ident(a)operator(\))                  comment(# the star operator will magically convert an Array into a "tuple")
+
+ident(both) operator(=) ident(men) operator(+) ident(women)
+
+comment(# In Ruby, all objects are references, so the same problem arises; we then return a new object)
+ident(nums) operator(=) operator([)float(1.4)operator(,) float(3.5)operator(,) float(6.7)operator(])
+reserved(def) method(int_all)operator(()ident(n)operator(\))
+    ident(n)operator(.)ident(collect) operator({) operator(|)ident(v)operator(|) ident(v)operator(.)ident(to_i) operator(})
+reserved(end)
+ident(ints) operator(=) ident(int_all)operator(()ident(nums)operator(\))
+
+ident(nums) operator(=) operator([)float(1.4)operator(,) float(3.5)operator(,) float(6.7)operator(])
+reserved(def) method(trunc_em)operator(()ident(n)operator(\))
+    ident(n)operator(.)ident(collect!) operator({) operator(|)ident(v)operator(|) ident(v)operator(.)ident(to_i) operator(})         comment(# the bang-version of collect modifies the object)
+reserved(end)
+ident(trunc_em)operator(()ident(nums)operator(\))
+
+comment(# Ruby has two chomp version:)
+comment(# ``chomp'' chomps the record separator and returns what's expected)
+comment(# ``chomp!'' does the same but also modifies the parameter object)
+
+
+comment(# @@PLEAC@@_10.2)
+reserved(def) method(somefunc)
+    ident(variable) operator(=) ident(something)  comment(# variable is local by default)
+reserved(end)
+
+ident(name)operator(,) ident(age) operator(=) pre_constant(ARGV)
+ident(start)     operator(=) ident(fetch_time)
+
+ident(a)operator(,) ident(b) operator(=) ident(pair)               comment(# will succeed if pair is an Array object (like ARGV is\))
+ident(c) operator(=) ident(fetch_time)
+
+comment(# In ruby, run_check can't access a, b, or c until they are)
+comment(# explicitely defined global (using leading $\), even if they are)
+comment(# both defined in the same scope)
+
+reserved(def) method(check_x)operator(()ident(x)operator(\))
+    ident(y) operator(=) string<delimiter(")content(whatever)delimiter(")>
+    ident(run_check)
+    reserved(if) global_variable($condition)
+        ident(puts) string<delimiter(")content(got $x)delimiter(")>
+    reserved(end)
+reserved(end)
+
+comment(# The following will keep a reference to the array, though the)
+comment(# results will be slightly different from perl: the last element)
+comment(# of $global_array will be itself an array)
+reserved(def) method(save_array)operator(()ident(ary)operator(\))
+    global_variable($global_array) operator(<<) ident(ary)
+reserved(end)
+
+comment(# The following gives the same results as in Perl for $global_array,)
+comment(# though it doesn't illustrate anymore the way to keep a reference)
+comment(# to an object: $global_array is extended with the elements of ary)
+reserved(def) method(save_array)operator(()ident(ary)operator(\))
+    global_variable($global_array) operator(+=) ident(ary)
+reserved(end)
+
+
+comment(# @@PLEAC@@_10.3)
+comment(# In Ruby, AFAIK a method cannot access "local variables" defined)
+comment(# upper scope; mostly because everything is an object, so you'll)
+comment(# do the same by defining an attribute or a static attribute)
+
+comment(# In Ruby the BEGIN also exists:)
+reserved(BEGIN) operator({) ident(puts) string<delimiter(")content(hello from BEGIN)delimiter(")> operator(})
+ident(puts) string<delimiter(")content(hello from main)delimiter(")>
+reserved(BEGIN) operator({) ident(puts) string<delimiter(")content(hello from 2nd BEGIN)delimiter(")> operator(})
+comment(# gives:)
+comment(#   hello from BEGIN)
+comment(#   hello from 2nd BEGIN)
+comment(#   hello from main)
+
+comment(# In Ruby, it can be written as a static method and a static)
+comment(# variable)
+reserved(class) class(Counter)
+    class_variable(@@counter) operator(=) integer(0)
+    reserved(def) constant(Counter)operator(.)ident(next_counter)operator(;) class_variable(@@counter) operator(+=) integer(1)operator(;) reserved(end)
+reserved(end)
+
+comment(# There is no need of BEGIN since the variable will get)
+comment(# initialized when parsing)
+reserved(class) class(Counter)
+    class_variable(@@counter) operator(=) integer(42)
+    reserved(def) constant(Counter)operator(.)ident(next_counter)operator(;) class_variable(@@counter) operator(+=) integer(1)operator(;) reserved(end)
+    reserved(def) constant(Counter)operator(.)ident(prev_counter)operator(;) class_variable(@@counter) operator(-=) integer(1)operator(;) reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_10.4)
+comment(# You can either get the whole trace as an array of strings, each)
+comment(# string telling which file, line and method is calling:)
+ident(caller)
+
+comment(# ...or only the last caller)
+ident(caller)operator([)integer(0)operator(])
+
+comment(# We need to extract just the method name of the backtrace:)
+reserved(def) method(whoami)operator(;)  ident(caller)operator(()operator(\))operator([)integer(0)operator(]) operator(=)operator(~) regexp<delimiter(/)content(in `([^']+\)')delimiter(/)> operator(?) global_variable($1) operator(:) string<delimiter(')content((anonymous\))delimiter(')>operator(;) reserved(end)
+reserved(def) method(whowasi)operator(;) ident(caller)operator(()operator(\))operator([)integer(1)operator(]) operator(=)operator(~) regexp<delimiter(/)content(in `([^']+\)')delimiter(/)> operator(?) global_variable($1) operator(:) string<delimiter(')content((anonymous\))delimiter(')>operator(;) reserved(end)
+
+
+comment(# @@PLEAC@@_10.5)
+comment(# In Ruby, every value is a reference on an object, thus there is)
+comment(# no such problem)
+ident(array_diff)operator(()ident(array1)operator(,) ident(array2)operator(\))
+
+reserved(def) method(add_vecpair)operator(()ident(a1)operator(,) ident(a2)operator(\))
+    ident(results) operator(=) operator([)operator(])
+    ident(a1)operator(.)ident(each_index) operator({) operator(|)ident(i)operator(|) ident(results) operator(<<) operator(()ident(a1)operator([)ident(i)operator(]) operator(+) ident(a2)operator([)ident(i)operator(])operator(\)) operator(})
+    ident(results)
+reserved(end)
+ident(a) operator(=) operator([)integer(1)operator(,) integer(2)operator(])
+ident(b) operator(=) operator([)integer(5)operator(,) integer(8)operator(])
+ident(c) operator(=) ident(add_vecpair)operator(()ident(a)operator(,) ident(b)operator(\))
+ident(p) ident(c)
+
+comment(# Add this to the beginning of the function to check if we were)
+comment(# given two arrays)
+ident(a1)operator(.)ident(type) operator(==) constant(Array) operator(&&) ident(a2)operator(.)ident(type) operator(==) constant(Array) reserved(or)
+    ident(raise) string<delimiter(")content(usage: add_vecpair array1 array2 (was used with: )inline<delimiter(#{)ident(a1)operator(.)ident(type)delimiter(})>content( )inline<delimiter(#{)ident(a2)operator(.)ident(type)delimiter(})>content(\))delimiter(")>
+
+
+comment(# @@PLEAC@@_10.6)
+comment(# There is no return context in Ruby)
+
+
+comment(# @@PLEAC@@_10.7)
+comment(# Like in Perl, we need to fake with a hash, but it's dirty :-()
+reserved(def) method(thefunc)operator(()ident(param_args)operator(\))
+    ident(args) operator(=) operator({) string<delimiter(')content(INCREMENT)delimiter(')> operator(=)operator(>) string<delimiter(')content(10s)delimiter(')>operator(,) string<delimiter(')content(FINISH)delimiter(')> operator(=)operator(>) string<delimiter(')content(0)delimiter(')>operator(,) string<delimiter(')content(START)delimiter(')> operator(=)operator(>) integer(0) operator(})
+    ident(args)operator(.)ident(update)operator(()ident(param_args)operator(\))
+    reserved(if) operator(()ident(args)operator([)string<delimiter(')content(INCREMENT)delimiter(')>operator(])  operator(=)operator(~) regexp<delimiter(/)content(m$)delimiter(/)> operator(\))
+        comment(# .....)
+    reserved(end)
+reserved(end)
+
+ident(thefunc)operator(()operator({) string<delimiter(')content(INCREMENT)delimiter(')> operator(=)operator(>) string<delimiter(')content(20s)delimiter(')>operator(,) string<delimiter(')content(START)delimiter(')> operator(=)operator(>) string<delimiter(')content(+5m)delimiter(')>operator(,) string<delimiter(')content(FINISH)delimiter(')> operator(=)operator(>) string<delimiter(')content(+30m)delimiter(')> operator(})operator(\))
+ident(thefunc)operator(()operator({)operator(})operator(\))
+
+
+comment(# @@PLEAC@@_10.8)
+comment(# there is no "undef" direct equivalent but there is the slice equiv:)
+ident(a)operator(,) ident(c) operator(=) ident(func)operator(.)ident(indexes)operator(()integer(0)operator(,) integer(2)operator(\))
+
+
+comment(# @@PLEAC@@_10.9)
+comment(# Ruby has no such limitation:)
+reserved(def) method(somefunc)
+    ident(ary) operator(=) operator([)operator(])
+    ident(hash) operator(=) operator({)operator(})
+    comment(# ...)
+    reserved(return) ident(ary)operator(,) ident(hash)
+reserved(end)
+ident(arr)operator(,) ident(dict) operator(=) ident(somefunc)
+
+ident(array_of_hashes) operator(=) ident(fn)
+ident(h1)operator(,) ident(h2)operator(,) ident(h3)      operator(=) ident(fn)
+
+
+comment(# @@PLEAC@@_10.10)
+reserved(return)
+comment(# or (equivalent\))
+reserved(return) pre_constant(nil)
+
+
+comment(# @@PLEAC@@_10.11)
+comment(# You can't prototype in Ruby regarding types :-()
+comment(# Though, you can force the number of arguments:)
+reserved(def) method(func_with_no_arg)operator(;) reserved(end)
+reserved(def) method(func_with_no_arg)operator(()operator(\))operator(;) reserved(end)
+reserved(def) method(func_with_one_arg)operator(()ident(a1)operator(\))operator(;) reserved(end)
+reserved(def) method(func_with_two_args)operator(()ident(a1)operator(,) ident(a2)operator(\))operator(;) reserved(end)
+reserved(def) method(func_with_any_number_of_args)operator(()operator(*)ident(args)operator(\))operator(;) reserved(end)
+
+
+comment(# @@PLEAC@@_10.12)
+ident(raise) string<delimiter(")content(some message)delimiter(")>        comment(# raise exception)
+
+reserved(begin)
+    ident(val) operator(=) ident(func)
+reserved(rescue) constant(Exception) operator(=)operator(>) ident(msg)
+    global_variable($stderr)operator(.)ident(puts) string<delimiter(")content(func raised an exception: )inline<delimiter(#{)ident(msg)delimiter(})>delimiter(")>
+reserved(end)
+
+comment(# In Ruby the rescue statement uses an exception class, every)
+comment(# exception which is not matched is still continuing)
+reserved(begin)
+    ident(val) operator(=) ident(func)
+reserved(rescue) constant(FullMoonError)
+    operator(...)
+reserved(end)
+
+
+comment(# @@PLEAC@@_10.13)
+comment(# Saving Global Values)
+comment(# Of course we can just save the value and restore it later:)
+reserved(def) method(print_age)
+    ident(puts) string<delimiter(")content(Age is )inline<delimiter(#{)global_variable($age)delimiter(})>delimiter(")>
+reserved(end)
+
+global_variable($age) operator(=) integer(18)         comment(# global variable)
+ident(print_age)operator(()operator(\))
+reserved(if) ident(condition)
+    ident(safeage) operator(=) global_variable($age)
+    global_variable($age) operator(=) integer(23)
+    ident(print_age)operator(()operator(\))
+    global_variable($age) operator(=) ident(safeage)
+reserved(end)
+
+comment(# We can also use a method that saves the global variable and)
+comment(# restores it automatically when the block is left:)
+
+reserved(def) method(local)operator(()ident(var)operator(\))
+    ident(eval)operator(()string<delimiter(")content(save = )inline<delimiter(#{)ident(var)operator(.)ident(id2name)delimiter(})>delimiter(")>operator(\))
+    reserved(begin)
+        ident(result) operator(=) reserved(yield)
+    reserved(ensure)
+        comment(# we want to call this even if we got an exception)
+        ident(eval)operator(()string<delimiter(")inline<delimiter(#{)ident(var)operator(.)ident(id2name)delimiter(})>content( = save)delimiter(")>operator(\))
+    reserved(end)
+    ident(result)
+reserved(end)
+
+ident(condition) operator(=) pre_constant(true)
+global_variable($age) operator(=) integer(18)
+ident(print_age)operator(()operator(\))
+reserved(if) ident(condition)
+    ident(local)operator(()symbol(:$age)operator(\)) operator({)
+        global_variable($age) operator(=) integer(23)
+        ident(print_age)operator(()operator(\))
+    operator(})
+reserved(end)
+ident(print_age)operator(()operator(\))
+
+comment(# There is no need to use local(\) for filehandles or directory)
+comment(# handles in ruby because filehandles are normal objects.)
+
+
+comment(# @@PLEAC@@_10.14)
+comment(# In Ruby you may redefine a method [but not overload it :-(])
+comment(# just by defining again with the same name.)
+reserved(def) method(foo)operator(;) ident(puts) string<delimiter(')content(foo)delimiter(')>operator(;) reserved(end)
+reserved(def) method(foo)operator(;) ident(puts) string<delimiter(')content(bar)delimiter(')>operator(;) reserved(end)
+ident(foo)
+comment(#=> bar)
+
+comment(# You can also take a reference to an existing method before)
+comment(# redefining a new one, using the `alias' keyword)
+reserved(def) method(foo)operator(;) ident(puts) string<delimiter(')content(foo)delimiter(')>operator(;) reserved(end)
+reserved(alias) ident(foo_orig) ident(foo)
+reserved(def) method(foo)operator(;) ident(puts) string<delimiter(')content(bar)delimiter(')>operator(;) reserved(end)
+ident(foo_orig)
+ident(foo)
+comment(#=> foo)
+comment(#=> bar)
+
+comment(# AFAIK, there is no direct way to create a new method whose name)
+comment(# comes from a variable, so use "eval")
+ident(colors) operator(=) string<delimiter(%w()content(red blue green yellow orange purple violet)delimiter(\))>
+ident(colors)operator(.)ident(each) operator({) operator(|)ident(c)operator(|)
+    ident(eval) string<delimiter(<<-EOS)>string<content(
+    def )inline<delimiter(#{)ident(c)delimiter(})>content((*a\)
+        "<FONT COLOR=')inline<delimiter(#{)ident(c)delimiter(})>content('>" + a.to_s + "</FONT>"
+    end)delimiter(
+    EOS)>
+operator(}) 
+
+
+comment(# @@PLEAC@@_10.15)
+reserved(def) method(method_missing)operator(()ident(name)operator(,) operator(*)ident(args)operator(\))
+    string<delimiter(")content(<FONT COLOR=')inline<delimiter(#{)ident(name)delimiter(})>content('>)delimiter(")> operator(+) ident(args)operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\)) operator(+) string<delimiter(")content(</FONT>)delimiter(")>
+reserved(end)
+ident(puts) ident(chartreuse)operator(()string<delimiter(")content(stuff)delimiter(")>operator(\))
+
+
+comment(# @@PLEAC@@_10.16)
+reserved(def) method(outer)operator(()ident(arg)operator(\))
+    ident(x) operator(=) ident(arg) operator(+) integer(35)
+    ident(inner) operator(=) ident(proc) operator({) ident(x) operator(*) integer(19) operator(})
+    ident(x) operator(+) ident(inner)operator(.)ident(call)operator(()operator(\))
+reserved(end)
+
+
+comment(# @@PLEAC@@_10.17)
+comment(#!/usr/bin/ruby -w)
+comment(# mailsort - sort mbox by different criteria)
+ident(require) string<delimiter(')content(English)delimiter(')>
+ident(require) string<delimiter(')content(Date)delimiter(')>
+
+comment(# Objects of class Mail represent a single mail.)
+reserved(class) class(Mail)
+    ident(attr_accessor) symbol(:no)
+    ident(attr_accessor) symbol(:subject)
+    ident(attr_accessor) symbol(:fulltext)
+    ident(attr_accessor) symbol(:date)
+
+    reserved(def) method(initialize)
+        instance_variable(@fulltext) operator(=) string<delimiter(")delimiter(")>
+        instance_variable(@subject) operator(=) string<delimiter(")delimiter(")>
+    reserved(end)
+
+    reserved(def) method(append)operator(()ident(para)operator(\))
+        instance_variable(@fulltext) operator(<<) ident(para)
+    reserved(end)
+
+    comment(# this is called if you call puts(mail\))
+    reserved(def) method(to_s)
+        instance_variable(@fulltext)
+    reserved(end)
+reserved(end)
+
+comment(# represents a list of mails.)
+reserved(class) class(Mailbox) operator(<) constant(Array)
+
+    constant(Subjectpattern) operator(=) constant(Regexp)operator(.)ident(new)operator(()string<delimiter(')content(Subject:)content(\\s)content(*(?:Re:)content(\\s)content(*\)*(.*\))content(\\n)delimiter(')>operator(\))
+    constant(Datepattern) operator(=) constant(Regexp)operator(.)ident(new)operator(()string<delimiter(')content(Date:)content(\\s)content(*(.*\))content(\\n)delimiter(')>operator(\))
+
+    comment(# reads mails from open file and stores them)
+    reserved(def) method(read)operator(()ident(file)operator(\))
+        global_variable($INPUT_RECORD_SEPARATOR) operator(=) string<delimiter(')delimiter(')>  comment(# paragraph reads)
+        ident(msgno) operator(=) integer(-1)
+        ident(file)operator(.)ident(each) operator({) operator(|)ident(para)operator(|)
+            reserved(if) ident(para) operator(=)operator(~) regexp<delimiter(/)content(^From)delimiter(/)>
+                ident(mail) operator(=) constant(Mail)operator(.)ident(new)
+                ident(mail)operator(.)ident(no) operator(=) operator(()ident(msgno) operator(+=) integer(1)operator(\))
+                ident(md) operator(=) constant(Subjectpattern)operator(.)ident(match)operator(()ident(para)operator(\))
+                reserved(if) ident(md)
+                    ident(mail)operator(.)ident(subject) operator(=) ident(md)operator([)integer(1)operator(])
+                reserved(end)
+                ident(md) operator(=) constant(Datepattern)operator(.)ident(match)operator(()ident(para)operator(\))
+                reserved(if) ident(md)
+                    ident(mail)operator(.)ident(date) operator(=) constant(DateTime)operator(.)ident(parse)operator(()ident(md)operator([)integer(1)operator(])operator(\))
+                reserved(else)
+                    ident(mail)operator(.)ident(date) operator(=) constant(DateTime)operator(.)ident(now)
+                reserved(end)
+                pre_constant(self)operator(.)ident(push)operator(()ident(mail)operator(\))
+            reserved(end)
+            ident(mail)operator(.)ident(append)operator(()ident(para)operator(\)) reserved(if) ident(mail)
+        operator(})
+    reserved(end)
+
+    reserved(def) method(sort_by_subject_and_no)
+        pre_constant(self)operator(.)ident(sort_by) operator({) operator(|)ident(m)operator(|)
+            operator([)ident(m)operator(.)ident(subject)operator(,) ident(m)operator(.)ident(no)operator(])
+        operator(})
+    reserved(end)
+
+    comment(# sorts by a list of attributs of mail, given as symbols)
+    reserved(def) method(sort_by_attributs)operator(()operator(*)ident(attrs)operator(\))
+        comment(# you can sort an Enumerable by an array of)
+        comment(# values, they would be compared)
+        comment(# from ary[0] to ary[n]t, say:)
+        comment(# ['b',1] > ['a',10] > ['a',9])
+        pre_constant(self)operator(.)ident(sort_by) operator({) operator(|)ident(elem)operator(|)
+            ident(attrs)operator(.)ident(map) operator({) operator(|)ident(attr)operator(|)
+                ident(elem)operator(.)ident(send)operator(()ident(attr)operator(\))
+            operator(})
+        operator(})
+    reserved(end)
+
+reserved(end)
+
+ident(mailbox) operator(=) constant(Mailbox)operator(.)ident(new)
+ident(mailbox)operator(.)ident(read)operator(()pre_constant(ARGF)operator(\))
+
+comment(# print only subjects sorted by subject and number)
+reserved(for) ident(m) reserved(in) ident(mailbox)operator(.)ident(sort_by_subject_and_no)
+    ident(puts)operator(()ident(m)operator(.)ident(subject)operator(\))
+reserved(end)
+
+comment(# print complete mails sorted by date, then subject, then number)
+reserved(for) ident(m) reserved(in) ident(mailbox)operator(.)ident(sort_by_attributs)operator(()symbol(:date)operator(,) symbol(:subject)operator(\))
+    ident(puts)operator(()ident(m)operator(\))
+reserved(end)
+
+
+comment(# @@PLEAC@@_11.7)
+reserved(def) method(mkcounter)operator(()ident(count)operator(\))
+    ident(start)  operator(=) ident(count) 
+    ident(bundle) operator(=) operator({) 
+        string<delimiter(")content(NEXT)delimiter(")>   operator(=)operator(>) ident(proc) operator({) ident(count) operator(+=) integer(1) operator(})operator(,)
+        string<delimiter(")content(PREV)delimiter(")>   operator(=)operator(>) ident(proc) operator({) ident(count) operator(-=) integer(1) operator(})operator(,)
+        string<delimiter(")content(RESET)delimiter(")>  operator(=)operator(>) ident(proc) operator({) ident(count) operator(=) ident(start) operator(})
+    operator(})
+    ident(bundle)operator([)string<delimiter(")content(LAST)delimiter(")>operator(]) operator(=) ident(bundle)operator([)string<delimiter(")content(PREV)delimiter(")>operator(])
+    reserved(return) ident(bundle)
+reserved(end)
+
+ident(c1) operator(=) ident(mkcounter)operator(()integer(20)operator(\))
+ident(c2) operator(=) ident(mkcounter)operator(()integer(77)operator(\))
+
+ident(puts) string<delimiter(")content(next c1: )inline<delimiter(#{)ident(c1)operator([)string<delimiter(")content(NEXT)delimiter(")>operator(])operator(.)ident(call)delimiter(})>delimiter(")>  comment(# 21 )
+ident(puts) string<delimiter(")content(next c2: )inline<delimiter(#{)ident(c2)operator([)string<delimiter(")content(NEXT)delimiter(")>operator(])operator(.)ident(call)delimiter(})>delimiter(")>  comment(# 78 )
+ident(puts) string<delimiter(")content(next c1: )inline<delimiter(#{)ident(c1)operator([)string<delimiter(")content(NEXT)delimiter(")>operator(])operator(.)ident(call)delimiter(})>delimiter(")>  comment(# 22 )
+ident(puts) string<delimiter(")content(last c1: )inline<delimiter(#{)ident(c1)operator([)string<delimiter(")content(PREV)delimiter(")>operator(])operator(.)ident(call)delimiter(})>delimiter(")>  comment(# 21 )
+ident(puts) string<delimiter(")content(last c1: )inline<delimiter(#{)ident(c1)operator([)string<delimiter(")content(LAST)delimiter(")>operator(])operator(.)ident(call)delimiter(})>delimiter(")>  comment(# 20 )
+ident(puts) string<delimiter(")content(old  c2: )inline<delimiter(#{)ident(c2)operator([)string<delimiter(")content(RESET)delimiter(")>operator(])operator(.)ident(call)delimiter(})>delimiter(")> comment(# 77 )
+
+
+comment(# @@PLEAC@@_11.15)
+reserved(class) class(Binary_tree)
+    reserved(def) method(initialize)operator(()ident(val)operator(\))
+        instance_variable(@value) operator(=) ident(val)
+        instance_variable(@left) operator(=) pre_constant(nil)
+        instance_variable(@right) operator(=) pre_constant(nil)
+    reserved(end)
+    
+    comment(# insert given value into proper point of)
+    comment(# provided tree.  If no tree provided, )
+    comment(# use implicit pass by reference aspect of @_)
+    comment(# to fill one in for our caller.)
+    reserved(def) method(insert)operator(()ident(val)operator(\))
+        reserved(if) ident(val) operator(<) instance_variable(@value) reserved(then)
+            reserved(if) instance_variable(@left) reserved(then)
+                instance_variable(@left)operator(.)ident(insert)operator(()ident(val)operator(\))
+            reserved(else)
+                instance_variable(@left) operator(=) constant(Binary_tree)operator(.)ident(new)operator(()ident(val)operator(\))
+            reserved(end)
+        reserved(elsif) ident(val) operator(>) instance_variable(@value) reserved(then)
+            reserved(if) instance_variable(@right) reserved(then)
+                instance_variable(@right)operator(.)ident(insert)operator(()ident(val)operator(\))
+            reserved(else)
+                instance_variable(@right) operator(=) constant(Binary_tree)operator(.)ident(new)operator(()ident(val)operator(\))
+            reserved(end)
+        reserved(else)
+            ident(puts) string<delimiter(")content(double)delimiter(")>
+            comment(# do nothing, no double values)
+        reserved(end)
+    reserved(end)
+
+    comment(# recurse on left child, )
+    comment(# then show current value, )
+    comment(# then recurse on right child.  )
+    reserved(def) method(in_order)
+        instance_variable(@left)operator(.)ident(in_order) reserved(if) instance_variable(@left)
+        ident(print) instance_variable(@value)operator(,) string<delimiter(")content( )delimiter(")>
+        instance_variable(@right)operator(.)ident(in_order) reserved(if) instance_variable(@right)
+    reserved(end)
+    
+    comment(# show current value, )
+    comment(# then recurse on left child, )
+    comment(# then recurse on right child.)
+    reserved(def) method(pre_order)
+        ident(print) instance_variable(@value)operator(,) string<delimiter(")content( )delimiter(")>
+        instance_variable(@left)operator(.)ident(pre_order) reserved(if) instance_variable(@left)
+        instance_variable(@right)operator(.)ident(pre_order) reserved(if) instance_variable(@right)
+    reserved(end)
+
+    comment(# recurse on left child, )
+    comment(# then recurse on right child,)
+    comment(# then show current value.)
+    reserved(def) method(post_order)
+        instance_variable(@left)operator(.)ident(post_order) reserved(if) instance_variable(@left)
+        instance_variable(@right)operator(.)ident(post_order) reserved(if) instance_variable(@right)
+        ident(print) instance_variable(@value)operator(,) string<delimiter(")content( )delimiter(")>
+    reserved(end)
+
+    comment(# find out whether provided value is in the tree.)
+    comment(# if so, return the node at which the value was found.)
+    comment(# cut down search time by only looking in the correct)
+    comment(# branch, based on current value.)
+    reserved(def) method(search)operator(()ident(val)operator(\))
+        reserved(if) ident(val) operator(==) instance_variable(@value) reserved(then)
+            reserved(return) pre_constant(self)
+        reserved(elsif) ident(val) operator(<) instance_variable(@value) reserved(then)
+            reserved(return) instance_variable(@left)operator(.)ident(search)operator(()ident(val)operator(\)) reserved(if) instance_variable(@left)
+            reserved(return) pre_constant(nil)
+        reserved(else)
+            reserved(return) instance_variable(@right)operator(.)ident(search)operator(()ident(val)operator(\)) reserved(if) instance_variable(@right)
+            reserved(return) pre_constant(nil)
+        reserved(end)
+    reserved(end)
+reserved(end)
+
+comment(# first generate 20 random inserts)
+ident(test) operator(=) constant(Binary_tree)operator(.)ident(new)operator(()integer(0)operator(\))
+reserved(for) ident(a) reserved(in) integer(0)operator(..)integer(20)
+    ident(test)operator(.)ident(insert)operator(()ident(rand)operator(()integer(1000)operator(\))operator(\)) 
+reserved(end)
+
+comment(# now dump out the tree all three ways)
+ident(print) string<delimiter(")content(Pre order:  )delimiter(")>operator(;)  ident(test)operator(.)ident(pre_order)operator(;)  ident(puts) string<delimiter(")delimiter(")>
+ident(print) string<delimiter(")content(In order:  )delimiter(")>operator(;)  ident(test)operator(.)ident(in_order)operator(;)  ident(puts) string<delimiter(")delimiter(")>
+ident(print) string<delimiter(")content(Post order:  )delimiter(")>operator(;)  ident(test)operator(.)ident(post_order)operator(;)  ident(puts) string<delimiter(")delimiter(")>
+
+ident(print) string<delimiter(")content(search?)delimiter(")>
+reserved(while) ident(gets)
+    ident(print) ident(test)operator(.)ident(search)operator(()global_variable($_)operator(.)ident(to_i)operator(\))
+    ident(print) string<delimiter(")char(\\n)content(search?)delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_12.0)
+comment(# class and module names need to have the first letter capitalized)
+reserved(module) class(Alpha)
+    constant(NAME) operator(=) string<delimiter(')content(first)delimiter(')>
+reserved(end)
+reserved(module) class(Omega)
+    constant(NAME) operator(=) string<delimiter(')content(last)delimiter(')>
+reserved(end)
+ident(puts) string<delimiter(")content(Alpha is )inline<delimiter(#{)constant(Alpha)operator(::)constant(NAME)delimiter(})>content(, Omega is )inline<delimiter(#{)constant(Omega)operator(::)constant(NAME)delimiter(})>delimiter(")>
+
+comment(# ruby doesn't differentiate beteen compile-time and run-time)
+ident(require) string<delimiter(')content(getoptlong.rb)delimiter(')>
+ident(require) string<delimiter(')content(getoptlong)delimiter(')>     comment(# assumes the .rb)
+ident(require) string<delimiter(')content(cards/poker.rb)delimiter(')>
+ident(require) string<delimiter(')content(cards/poker)delimiter(')>    comment(# assumes the .rb)
+ident(load)    string<delimiter(')content(cards/poker)delimiter(')>    comment(# require only loads the file once)
+
+reserved(module) class(Cards)
+    reserved(module) class(Poker)
+        instance_variable(@card_deck) operator(=) constant(Array)operator(.)ident(new) comment(# or @card_deck = [])
+        reserved(def) method(shuffle)
+        reserved(end)
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_12.1)
+comment(# a module exports all of its functions)
+reserved(module) class(Your_Module)
+    reserved(def) pre_constant(self)operator(.)ident(function)
+        comment(# this would be called as Your_Module.function)
+    reserved(end)
+    
+    reserved(def) constant(Your_Module)operator(.)ident(another)
+        comment(# this is the same as above, but more specific)
+    reserved(end)
+reserved(end)
+
+comment(# @@PLEAC@@_12.2)
+reserved(begin)
+    ident(require) string<delimiter(')content(nonexistent)delimiter(')>
+reserved(rescue) constant(LoadError)
+    ident(puts) string<delimiter(")content(Couldn't load )inline<delimiter(#{)global_variable($!)delimiter(})>delimiter(")>  comment(# $! contains the last error string)
+reserved(end)
+
+comment(# @@PLEAC@@_12.4)
+comment(# module variables are private unless access functions are defined)
+reserved(module) class(Alpha)
+    instance_variable(@aa) operator(=) integer(10)
+    instance_variable(@bb) operator(=) integer(11)
+    
+    reserved(def) pre_constant(self)operator(.)ident(put_aa)
+        ident(puts) instance_variable(@aa)
+    reserved(end)
+    
+    reserved(def) pre_constant(self)operator(.)ident(bb)operator(=)operator(()ident(val)operator(\))
+        instance_variable(@bb) operator(=) ident(val)
+    reserved(end)
+reserved(end)
+
+constant(Alpha)operator(.)ident(bb) operator(=) integer(12)
+comment(# Alpha.aa = 10 # error, no aa=method)
+
+
+comment(# @@PLEAC@@_12.5)
+comment(# caller provides a backtrace of the call stack)
+reserved(module) class(MyModule)
+    reserved(def) method(find_caller)
+        ident(caller)
+    reserved(end)
+
+    reserved(def) method(find_caller2)operator(()ident(i)operator(\))
+        ident(caller)operator(()ident(i)operator(\)) comment(# an argument limits the size of the stack returned)
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_12.6)
+reserved(BEGIN) operator({)
+    global_variable($logfile) operator(=) string<delimiter(')content(/tmp/mylog)delimiter(')> reserved(unless) reserved(defined?) global_variable($logfile)
+    global_variable($LF) operator(=) constant(File)operator(.)ident(open)operator(()global_variable($logfile)operator(,) string<delimiter(')content(a)delimiter(')>operator(\))
+operator(})
+
+reserved(module) class(Logger)
+    reserved(def) pre_constant(self)operator(.)ident(logmsg)operator(()ident(msg)operator(\))
+        global_variable($LF)operator(.)ident(puts) ident(msg)
+    reserved(end)
+
+    ident(logmsg)operator(()string<delimiter(')content(startup)delimiter(')>operator(\))
+reserved(end)
+
+reserved(END) operator({)
+    constant(Logger)operator(::)ident(logmsg)operator(()string<delimiter(')content(shutdown)delimiter(')>operator(\))
+    global_variable($LF)operator(.)ident(close)
+operator(})
+
+
+comment(# @@PLEAC@@_12.7)
+comment(#-----------------------------)
+comment(# results may be different on your system)
+comment(# % ruby -e "$LOAD_PATH.each_index { |i| printf("%d %s\\n", i, $LOAD_PATH[i] })
+comment(#0 /usr/local/lib/site_ruby/1.6)
+comment(#1 /usr/local/lib/site_ruby/1.6/i386-linux)
+comment(#2 /usr/local/lib/site_ruby/)
+comment(#3 /usr/lib/ruby/1.6)
+comment(#4 /usr/lib/ruby/1.6/i136-linux)
+comment(#5 .)
+comment(#-----------------------------)
+comment(# syntax for sh, bash, ksh, or zsh)
+comment(#$ export RUBYLIB=$HOME/rubylib)
+
+comment(# syntax for csh or tcsh)
+comment(# % setenv RUBYLIB ~/rubylib)
+comment(#-----------------------------)
+global_variable($LOAD_PATH)operator(.)ident(unshift) string<delimiter(")content(/projects/spectre/lib)delimiter(")>operator(;)
+
+
+comment(# @@PLEAC@@_12.8)
+comment(# equivalents in ruby are mkmf, SWIG, or Ruby/DL depending on usage)
+
+
+comment(# @@PLEAC@@_12.9)
+comment(# no equivalent in ruby)
+
+
+comment(# @@PLEAC@@_12.10)
+comment(# no equivalent in ruby)
+
+
+comment(# @@PLEAC@@_12.11)
+reserved(module) class(FineTime)
+    reserved(def) pre_constant(self)operator(.)ident(time)
+        comment(# to be defined later)
+    reserved(end)
+reserved(end)
+
+
+reserved(module) class(FineTime)
+    reserved(def) pre_constant(self)operator(.)ident(time)
+        string<delimiter(")content(its a fine time)delimiter(")>
+    reserved(end)
+reserved(end)
+
+ident(puts) constant(FineTime)operator(.)ident(time) comment(#=> "its a fine time")
+
+
+comment(# @@PLEAC@@_12.12)
+reserved(def) method(even_only)operator(()ident(n)operator(\))
+    ident(raise) string<delimiter(")inline<delimiter(#{)ident(n)delimiter(})>content( is not even)delimiter(")> reserved(if) operator(()ident(n) operator(&) integer(1)operator(\)) operator(!=) integer(0)  comment(# one way to test)
+    comment(# ...)
+reserved(end)
+reserved(def) method(even_only)operator(()ident(n)operator(\))
+    global_variable($stderr)operator(.)ident(puts) string<delimiter(")inline<delimiter(#{)ident(n)delimiter(})>content( is not even)delimiter(")> reserved(if) operator(()ident(n) operator(&) integer(1)operator(\)) operator(!=) integer(0)
+    comment(# ...)
+reserved(end)
+
+
+comment(# @@PLEAC@@_12.17)
+comment(# The library archive for ruby is called Ruby Application archive,)
+comment(# or shorter RAA, and can be found at http://raa.ruby-lang.org.)
+comment(# A typical library is installed like this:)
+comment(# % gunzip some-module-4.54.tar.gz)
+comment(# % tar xf some-module-4.54.tar)
+comment(# % cd some-module-4.54.tar)
+comment(# % ruby install.rb config)
+comment(# % ruby install.rb setup)
+comment(# get superuser previleges here if needed for next step)
+comment(# % ruby install.rb install)
+
+comment(# Some modules use a different process,)
+comment(# you should find details in the documentation)
+comment(# Here is an example of such a different process)
+comment(# % ruby extconf.rb)
+comment(# % make)
+comment(# % make install)
+
+comment(# If you want the module installed in your own directory:)
+comment(# For ruby version specific libraries)
+comment(# % ruby install.rb config --site-ruby=~/lib)
+comment(# For version independent libraries)
+comment(# % ruby install.rb config --site-ruby-common=~/lib)
+
+comment(# Information about possible options for config)
+comment(# % ruby install.rb --help)
+
+comment(# If you have your own complete distribution)
+comment(# % ruby install.rb --prefix=path=~/ruby-private)
+
+
+comment(# @@PLEAC@@_13.0)
+comment(# Classes and objects in Ruby are rather straigthforward)
+reserved(class) class(Person)
+    comment(# Class variables (also called static attributes\) are prefixed by @@)
+    class_variable(@@person_counter)operator(=)integer(0)
+    
+    comment(# object constructor)
+    reserved(def) method(initialize)operator(()ident(age)operator(,) ident(name)operator(,) ident(alive) operator(=) pre_constant(true)operator(\))     comment(# Default arg like in C++)
+        instance_variable(@age)operator(,) instance_variable(@name)operator(,) instance_variable(@alive) operator(=) ident(age)operator(,) ident(name)operator(,) ident(alive)  comment(# Object attributes are prefixed by '@')
+        class_variable(@@person_counter) operator(+=) integer(1)
+          comment(# There is no '++' operator in Ruby. The '++'/'--'  operators are in fact )
+          comment(# hidden assignments which affect variables, not objects. You cannot accomplish)
+          comment(# assignment via method. Since everything in Ruby is object, '++' and '--' )
+          comment(# contradict Ruby OO ideology. Instead '-=' and '+=' are used.)
+    reserved(end)
+    
+    ident(attr_accessor) symbol(:name)operator(,) symbol(:age)   comment(# This creates setter and getter methods for @name)
+                                comment(# and @age. See 13.3 for detailes.)
+    
+    comment(# methods modifying the receiver object usually have the '!' suffix)
+    reserved(def) method(die!)
+        instance_variable(@alive) operator(=) pre_constant(false)
+        ident(puts) string<delimiter(")inline<delimiter(#{)instance_variable(@name)delimiter(})>content( has died at the age of )inline<delimiter(#{)instance_variable(@age)delimiter(})>content(.)delimiter(")>
+        instance_variable(@alive)
+    reserved(end)
+    
+    reserved(def) method(kill)operator(()ident(anotherPerson)operator(\))
+        ident(print) instance_variable(@name)operator(,) string<delimiter(')content( is killing )delimiter(')>operator(,) ident(anotherPerson)operator(.)ident(name)operator(,) string<delimiter(")content(.)char(\\n)delimiter(")>
+        ident(anotherPerson)operator(.)ident(die!)
+    reserved(end)
+
+    comment(# methods used as queries)
+    comment(# usually have the '?' suffix    )
+    reserved(def) method(alive?)
+        instance_variable(@alive) operator(&&) pre_constant(true)
+    reserved(end)
+    
+    reserved(def) method(year_of_birth)
+        constant(Time)operator(.)ident(now)operator(.)ident(year) operator(-) instance_variable(@age)
+    reserved(end)
+    
+    comment(# Class method (also called static method\))
+    reserved(def) constant(Person)operator(.)ident(number_of_people)
+        class_variable(@@person_counter)
+    reserved(end)
+reserved(end)
+
+comment(# Using the class:)
+comment(# Create objects of class Person)
+ident(lecter) operator(=) constant(Person)operator(.)ident(new)operator(()integer(47)operator(,) string<delimiter(')content(Hannibal)delimiter(')>operator(\))
+ident(starling) operator(=) constant(Person)operator(.)ident(new)operator(()integer(29)operator(,) string<delimiter(')content(Clarice)delimiter(')>operator(,) pre_constant(true)operator(\))
+ident(pazzi) operator(=) constant(Person)operator(.)ident(new)operator(()integer(40)operator(,) string<delimiter(')content(Rinaldo)delimiter(')>operator(,) pre_constant(true)operator(\))
+
+comment(# Calling a class method)
+ident(print) string<delimiter(")content(There are )delimiter(")>operator(,) constant(Person)operator(.)ident(number_of_people)operator(,) string<delimiter(")content( Person objects)char(\\n)delimiter(")>
+
+ident(print) ident(pazzi)operator(.)ident(name)operator(,) string<delimiter(')content( is )delimiter(')>operator(,) operator(()ident(pazzi)operator(.)ident(alive?)operator(\)) operator(?) string<delimiter(')content(alive)delimiter(')> operator(:) string<delimiter(')content(dead)delimiter(')>operator(,) string<delimiter(")content(.)char(\\n)delimiter(")>
+ident(lecter)operator(.)ident(kill)operator(()ident(pazzi)operator(\))
+ident(print) ident(pazzi)operator(.)ident(name)operator(,) string<delimiter(')content( is )delimiter(')>operator(,) operator(()ident(pazzi)operator(.)ident(alive?)operator(\)) operator(?) string<delimiter(')content(alive)delimiter(')> operator(:) string<delimiter(')content(dead)delimiter(')>operator(,) string<delimiter(")content(.)char(\\n)delimiter(")>
+
+ident(print) ident(starling)operator(.)ident(name) operator(,) string<delimiter(')content( was born in )delimiter(')>operator(,) ident(starling)operator(.)ident(year_of_birth)operator(,) string<delimiter(")char(\\n)delimiter(")>
+
+
+comment(# @@PLEAC@@_13.1)
+comment(# If you don't need any initialisation in the constructor,)
+comment(# you don't need to write a constructor.)
+reserved(class) class(MyClass)
+reserved(end)
+
+reserved(class) class(MyClass)
+    reserved(def) method(initialize)
+        instance_variable(@start) operator(=) constant(Time)operator(.)ident(new)
+        instance_variable(@age) operator(=) integer(0)
+    reserved(end)
+reserved(end)
+
+reserved(class) class(MyClass)
+    reserved(def) method(initialize)operator(()ident(inithash)operator(\))
+        instance_variable(@start) operator(=) constant(Time)operator(.)ident(new)
+        instance_variable(@age) operator(=) integer(0)
+        reserved(for) ident(key)operator(,) ident(value) reserved(in) ident(inithash)
+            ident(instance_variable_set)operator(()string<delimiter(")content(@)inline<delimiter(#{)ident(key)delimiter(})>delimiter(")>operator(,) ident(value)operator(\))
+        reserved(end)
+    reserved(end)
+reserved(end)
+
+comment(# @@PLEAC@@_13.2)
+comment(# Objects are destroyed by the garbage collector.)
+comment(# The time of destroying is not predictable.)
+comment(# The ruby garbage collector can handle circular references,)
+comment(# so there is no need to write destructor for that.)
+
+comment(# There is no direct support for destructor.)
+comment(# You can call a custom function, or more specific a proc object, when the)
+comment(# garbage collector is about to destruct the object, but it is unpredictable)
+comment(# when this occurs.)
+comment(# Also if such a finalizer object has a reference to the orignal object,)
+comment(# this may prevent the original object to get garbage collected.)
+comment(# Because of this problem the finalize method below is)
+comment(# a class method and not a instance method.)
+comment(# So if you need to free resources for an object, like)
+comment(# closing a socket or kill a spawned subprocess,)
+comment(# you should do it explicitly.)
+
+reserved(class) class(MyClass)
+    reserved(def) method(initialize)
+        constant(ObjectSpace)operator(.)ident(define_finalizer)operator(()pre_constant(self)operator(,)
+                                     pre_constant(self)operator(.)ident(class)operator(.)ident(method)operator(()symbol(:finalize)operator(\))operator(.)ident(to_proc)operator(\))
+    reserved(end)
+    reserved(def) constant(MyClass)operator(.)ident(finalize)operator(()ident(id)operator(\))
+        ident(puts) string<delimiter(")content(Object )inline<delimiter(#{)ident(id)delimiter(})>content( dying at )inline<delimiter(#{)constant(Time)operator(.)ident(new)delimiter(})>delimiter(")>
+    reserved(end)
+reserved(end)
+
+comment(# test code)
+integer(3)operator(.)ident(times) operator({)
+    constant(MyClass)operator(.)ident(new)
+operator(})
+constant(ObjectSpace)operator(.)ident(garbage_collect)
+
+
+comment(# @@PLEAC@@_13.3)
+comment(# You can write getter and setter methods in a natural way:)
+reserved(class) class(Person)
+    reserved(def) method(name)
+        instance_variable(@name)
+    reserved(end)
+    reserved(def) method(name=)operator(()ident(name)operator(\))
+        instance_variable(@name) operator(=) ident(name)
+    reserved(end)
+reserved(end)
+
+comment(# But there is a better and shorter way)
+reserved(class) class(Person)
+    ident(attr_reader) symbol(:age)
+    ident(attr_writer) symbol(:name)  
+    comment(# attr_reader and attr_writer are actually methods in class Class)
+    comment(# which set getter and setter methods for you.)
+reserved(end)
+
+comment(# There is also attr_accessor to create both setters and getters)
+reserved(class) class(Person)
+    ident(attr_accessor) symbol(:age)operator(,) symbol(:name)
+reserved(end)
+
+
+comment(# @@PLEAC@@_13.4)
+reserved(class) class(Person)
+    comment(# Class variables (also called static attributes\) are prefixed by @@)
+    class_variable(@@person_counter) operator(=) integer(0)
+    
+    reserved(def) constant(Person)operator(.)ident(population)
+        class_variable(@@person_counter)
+    reserved(end)
+    reserved(def) method(initialize)
+        class_variable(@@person_counter) operator(+=) integer(1)
+        constant(ObjectSpace)operator(.)ident(define_finalizer)operator(()pre_constant(self)operator(,)
+                                     pre_constant(self)operator(.)ident(class)operator(.)ident(method)operator(()symbol(:finalize)operator(\))operator(.)ident(to_proc)operator(\))
+    reserved(end)
+    reserved(def) constant(Person)operator(.)ident(finalize)operator(()ident(id)operator(\))
+        class_variable(@@person_counter) operator(-=) integer(1)
+    reserved(end)
+reserved(end)
+ident(people) operator(=) operator([)operator(])
+integer(10)operator(.)ident(times) operator({)
+    ident(people)operator(.)ident(push)operator(()constant(Person)operator(.)ident(new)operator(\))
+operator(})
+ident(printf)operator(()string<delimiter(")content(There are %d people alive)delimiter(")>operator(,) constant(Person)operator(.)ident(population)operator(\))
+
+
+constant(FixedArray)operator(.)ident(class_max_bounds) operator(=) integer(100)
+ident(alpha) operator(=) constant(FixedArray)operator(.)ident(new)
+ident(puts) string<delimiter(")content(Bound on alpha is )inline<delimiter(#{)ident(alpha)operator(.)ident(max_bounds)delimiter(})>delimiter(")>
+
+ident(beta) operator(=) constant(FixedArray)operator(.)ident(new)
+ident(beta)operator(.)ident(max_bounds) operator(=) integer(50)                    comment(# calls the instance method)
+ident(beta)operator(.)ident(class)operator(.)ident(class_max_bounds) operator(=) integer(50)        comment(# alternative, calls the class method)
+ident(puts) string<delimiter(")content(Bound on alpha is )inline<delimiter(#{)ident(alpha)operator(.)ident(max_bounds)delimiter(})>delimiter(")>
+    
+reserved(class) class(FixedArray)
+    class_variable(@@bounds) operator(=) integer(7)
+    
+    reserved(def) method(max_bounds)
+        class_variable(@@max_bounds)
+    reserved(end)
+    comment(# instance method, which sets the class variable)
+    reserved(def) method(max_bounds=)operator(()ident(value)operator(\))
+        class_variable(@@max_bounds) operator(=) ident(value)
+    reserved(end)
+    comment(# class method. This can only be called on a class,)
+    comment(# but not on the instances)
+    reserved(def) constant(FixedArray)operator(.)ident(class_max_bounds)operator(=)operator(()ident(value)operator(\))
+        class_variable(@@max_bounds) operator(=) ident(value)
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_13.5)
+constant(PersonStruct) operator(=) constant(Struct)operator(.)ident(new)operator(()string<delimiter(")content(Person)delimiter(")>operator(,) symbol(:name)operator(,) symbol(:age)operator(,) symbol(:peers)operator(\))
+comment(# creates a class "Person::Struct", which is accessiable with the)
+comment(# constant "PersonStruct")
+ident(p) operator(=) constant(PersonStruct)operator(.)ident(new)
+ident(p) operator(=) constant(Struct)operator(::)constant(Person)operator(.)ident(new)                      comment(# alternative using the classname)
+ident(p)operator(.)ident(name) operator(=) string<delimiter(")content(Jason Smythe)delimiter(")>
+ident(p)operator(.)ident(age) operator(=) integer(13)
+ident(p)operator(.)ident(peers) operator(=) operator([)string<delimiter(")content(Wilbur)delimiter(")>operator(,) string<delimiter(")content(Ralph)delimiter(")>operator(,) string<delimiter(")content(Fred)delimiter(")>operator(])
+ident(p)operator([)symbol(:peers)operator(]) operator(=) operator([)string<delimiter(")content(Wilbur)delimiter(")>operator(,) string<delimiter(")content(Ralph)delimiter(")>operator(,) string<delimiter(")content(Fred)delimiter(")>operator(])     comment(# alternative access using symbol)
+ident(p)operator([)string<delimiter(")content(peers)delimiter(")>operator(]) operator(=) operator([)string<delimiter(")content(Wilbur)delimiter(")>operator(,) string<delimiter(")content(Ralph)delimiter(")>operator(,) string<delimiter(")content(Fred)delimiter(")>operator(])    comment(# alternative access using name of field)
+ident(p)operator([)integer(2)operator(]) operator(=) operator([)string<delimiter(")content(Wilbur)delimiter(")>operator(,) string<delimiter(")content(Ralph)delimiter(")>operator(,) string<delimiter(")content(Fred)delimiter(")>operator(])          comment(# alternative access using index of field)
+ident(puts) string<delimiter(")content(At age )inline<delimiter(#{)ident(p)operator(.)ident(age)delimiter(})>content(, )inline<delimiter(#{)ident(p)operator(.)ident(name)delimiter(})>content('s first friend is )inline<delimiter(#{)ident(p)operator(.)ident(peers)operator([)integer(0)operator(])delimiter(})>delimiter(")>
+
+comment(# The fields of a struct have no special type, like other ruby variables)
+comment(# you can put any objects in. Therefore the discussions how to specify)
+comment(# the types of the fields do not apply to ruby.)
+
+constant(FamilyStruct) operator(=) constant(Struct)operator(.)ident(new)operator(()string<delimiter(")content(Family)delimiter(")>operator(,) symbol(:head)operator(,) symbol(:address)operator(,) symbol(:members)operator(\))
+ident(folks) operator(=) constant(FamilyStruct)operator(.)ident(new)
+ident(folks)operator(.)ident(head) operator(=) constant(PersonStruct)operator(.)ident(new)
+ident(dad) operator(=) ident(folks)operator(.)ident(head)
+ident(dad)operator(.)ident(name) operator(=) string<delimiter(")content(John)delimiter(")>
+ident(dad)operator(.)ident(age) operator(=) integer(34)
+
+comment(# supply of own accessor method for the struct for error checking)
+reserved(class) class(PersonStruct)
+    reserved(def) method(age=)operator(()ident(value)operator(\))
+        reserved(if) operator(!)ident(value)operator(.)ident(kind_of?)operator(()constant(Integer)operator(\))
+            ident(raise)operator(()constant(ArgumentError)operator(,) string<delimiter(")content(Age )inline<delimiter(#{)ident(value)delimiter(})>content( isn't an Integer)delimiter(")>operator(\))
+        reserved(elsif) ident(value) operator(>) integer(150)
+            ident(raise)operator(()constant(ArgumentError)operator(,) string<delimiter(")content(Age )inline<delimiter(#{)ident(value)delimiter(})>content( is unreasonable)delimiter(")>operator(\))
+        reserved(end)
+        instance_variable(@age) operator(=) ident(value)
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_13.6)
+comment(# The ruby Object class defines a dup and a clone method.)
+comment(# The dup method is recommended for prototype object creation.)
+comment(# The default implementation makes a shallow copy,)
+comment(# but each class can override it, for example to make a deep copy.)
+
+comment(# If you want to call 'new' directly on the instances,)
+comment(# you can create a instance method "new", which returns a new duplicate.)
+comment(# This method is distinct from the class method new.)
+comment(#)
+reserved(class) class(A)
+    reserved(def) method(new)
+        ident(dup)
+    reserved(end)
+reserved(end)
+
+ident(ob1) operator(=) constant(A)operator(.)ident(new)
+comment(# later on)
+ident(ob2) operator(=) ident(ob1)operator(.)ident(new)
+
+
+comment(# @@PLEAC@@_13.7)
+ident(methname) operator(=) string<delimiter(')content(flicker)delimiter(')>
+ident(obj)operator(.)ident(send)operator(()ident(methname)operator(,) integer(10)operator(\))      comment(# calls obj.flicker(10\))
+
+comment(# call three methods on the object, by name)
+operator([)string<delimiter(')content(start)delimiter(')>operator(,) string<delimiter(')content(run)delimiter(')>operator(,) string<delimiter(')content(stop)delimiter(')>operator(])operator(.)ident(each) reserved(do) operator(|)ident(method_string)operator(|)
+    ident(obj)operator(.)ident(send)operator(()ident(method_string)operator(\))
+reserved(end)
+
+comment(# Another way is to create a Method object)
+ident(method_obj) operator(=) ident(obj)operator(.)ident(method)operator(()string<delimiter(')content(flicker)delimiter(')>operator(\))
+comment(# And then call it)
+ident(method_obj)operator(.)ident(call)operator(()integer(10)operator(\))
+
+
+comment(# @@PLEAC@@_13.8)
+comment(# All classes in Ruby inherit from class Object)
+comment(# and thus all objects share methods defined in this class)
+
+comment(# the class of the object)
+ident(puts) ident(any_object)operator(.)ident(type)
+
+comment(# Ruby classes are actually objects of class Class and they)
+comment(# respond to methods defined in Object class as well)
+
+comment(# the superclass of this class)
+ident(puts) ident(any_object)operator(.)ident(class)operator(.)ident(superclass)
+
+comment(# ask an object whether it is an instance of particular class)
+ident(n) operator(=) float(4.7)
+ident(puts) ident(n)operator(.)ident(instance_of?)operator(()constant(Float)operator(\))    comment(# true)
+ident(puts) ident(n)operator(.)ident(instance_of?)operator(()constant(Numeric)operator(\))  comment(# false)
+
+comment(# ask an object whether it is an instance of class, one of the)
+comment(# superclasses of the object, or modules included in it)
+ident(puts) ident(n)operator(.)ident(kind_of?)operator(()constant(Float)operator(\))       comment(# true (the class\))
+ident(puts) ident(n)operator(.)ident(kind_of?)operator(()constant(Numeric)operator(\))     comment(# true (an ancestor class\))
+ident(puts) ident(n)operator(.)ident(kind_of?)operator(()constant(Comparable)operator(\))  comment(# true (a mixin module\))
+ident(puts) ident(n)operator(.)ident(kind_of?)operator(()constant(String)operator(\))      comment(# false)
+
+comment(# ask an object whether it can respond to a particular method)
+ident(puts) ident(n)operator(.)ident(respond_to?)operator(()string<delimiter(')content(+)delimiter(')>operator(\))      comment(# true)
+ident(puts) ident(n)operator(.)ident(respond_to?)operator(()string<delimiter(')content(length)delimiter(')>operator(\)) comment(# false)
+
+comment(# all methods an object can respond to)
+string<delimiter(')content(just a string)delimiter(')>operator(.)ident(methods)operator(.)ident(each) operator({) operator(|)ident(m)operator(|) ident(puts) ident(m) operator(})
+
+
+comment(# @@PLEAC@@_13.9)
+comment(# Actually any class in Ruby is inheritable)
+reserved(class) class(Person)        
+    ident(attr_accessor) symbol(:age)operator(,) symbol(:name)
+    reserved(def) method(initialize)
+        instance_variable(@name)
+        instance_variable(@age)
+    reserved(end)
+reserved(end)
+comment(#-----------------------------)
+ident(dude) operator(=) constant(Person)operator(.)ident(new)
+ident(dude)operator(.)ident(name) operator(=) string<delimiter(')content(Jason)delimiter(')>
+ident(dude)operator(.)ident(age) operator(=) integer(23)
+ident(printf) string<delimiter(")content(%s is age %d.)char(\\n)delimiter(")>operator(,) ident(dude)operator(.)ident(name)operator(,) ident(dude)operator(.)ident(age)
+comment(#-----------------------------)
+comment(# Inheriting from Person)
+reserved(class) class(Employee) operator(<) constant(Person)
+    ident(attr_accessor) symbol(:salary)
+reserved(end)
+comment(#-----------------------------)
+ident(empl) operator(=) constant(Employee)operator(.)ident(new)
+ident(empl)operator(.)ident(name) operator(=) string<delimiter(')content(Jason)delimiter(')>
+ident(empl)operator(.)ident(age) operator(=) integer(23)
+ident(empl)operator(.)ident(salary) operator(=) integer(200)
+ident(printf) string<delimiter(")content(%s is age %d, the salary is %d.)char(\\n)delimiter(")>operator(,) ident(empl)operator(.)ident(name)operator(,) ident(empl)operator(.)ident(age)operator(,) ident(empl)operator(.)ident(salary)
+comment(#-----------------------------)
+comment(# Any built-in class can be inherited the same way)
+reserved(class) class(WeirdString) operator(<) constant(String)  
+    reserved(def) method(initialize)operator(()ident(obj)operator(\))
+        reserved(super) ident(obj)
+    reserved(end)
+    reserved(def) method(+)operator(()ident(anotherObj)operator(\))   comment(# + method in this class is overridden)
+        comment(# to return the sum of string lengths)
+        pre_constant(self)operator(.)ident(length) operator(+) ident(anotherObj)operator(.)ident(length)  comment(# 'self' can be omitted)
+    reserved(end)  
+reserved(end)
+comment(#-----------------------------)
+ident(a) operator(=) constant(WeirdString)operator(.)ident(new)operator(()string<delimiter(')content(hello)delimiter(')>operator(\))
+ident(b) operator(=) constant(WeirdString)operator(.)ident(new)operator(()string<delimiter(')content(bye)delimiter(')>operator(\))
+
+ident(puts) ident(a) operator(+) ident(b)    comment(# the overridden +)
+comment(#=> 8)
+ident(puts) ident(a)operator(.)ident(length) comment(# method from the superclass, String)
+comment(#=> 5)
+
+
+comment(# @@PLEAC@@_13.11)
+comment(# In ruby you can override the method_missing method)
+comment(# to have a solution similar to perls AUTOLOAD.)
+reserved(class) class(Person)
+
+    reserved(def) method(initialize)
+        instance_variable(@ok_fields) operator(=) string<delimiter(%w()content(name age peers parent)delimiter(\))>
+    reserved(end)
+
+    reserved(def) method(valid_attribute?)operator(()ident(name)operator(\))
+        instance_variable(@ok_fields)operator(.)ident(include?)operator(()ident(name)operator(\))
+    reserved(end)
+
+    reserved(def) method(method_missing)operator(()ident(namesymbol)operator(,) operator(*)ident(params)operator(\))
+        ident(name) operator(=) ident(namesymbol)operator(.)ident(to_s)
+        reserved(return) reserved(if) ident(name) operator(=)operator(~) regexp<delimiter(/)content(^A-Z)delimiter(/)>
+        reserved(if) ident(name)operator(.)ident(to_s)operator([)integer(-1)operator(]) operator(==) operator(()string<delimiter(')content(=)delimiter(')>operator([)integer(0)operator(])operator(\))       comment(# we have a setter)
+            ident(isSetter) operator(=) pre_constant(true)
+            ident(name)operator(.)ident(sub!)operator(()regexp<delimiter(/)content(=$)delimiter(/)>operator(,) string<delimiter(')delimiter(')>operator(\))
+        reserved(end)
+        reserved(if) ident(valid_attribute?)operator(()ident(name)operator(\))
+            reserved(if) ident(isSetter)
+                ident(instance_variable_set)operator(()string<delimiter(")content(@)inline<delimiter(#{)ident(name)delimiter(})>delimiter(")>operator(,) operator(*)ident(params)operator(\))
+            reserved(else)
+                ident(instance_variable_get)operator(()string<delimiter(")content(@)inline<delimiter(#{)ident(name)delimiter(})>delimiter(")>operator(,) operator(*)ident(params)operator(\))
+            reserved(end)
+        reserved(else)
+            comment(# if no annestor is responsible,)
+            comment(# the Object class will throw a NoMethodError exception)
+            reserved(super)operator(()ident(namesymbol)operator(,) operator(*)ident(params)operator(\))
+        reserved(end)
+    reserved(end)
+
+    reserved(def) method(new)
+        ident(kid) operator(=) constant(Person)operator(.)ident(new)
+        ident(kid)operator(.)ident(parent) operator(=) pre_constant(self)
+        ident(kid)
+    reserved(end)
+
+reserved(end)
+
+ident(dad) operator(=) constant(Person)operator(.)ident(new)
+ident(dad)operator(.)ident(name) operator(=) string<delimiter(")content(Jason)delimiter(")>
+ident(dad)operator(.)ident(age) operator(=) integer(23)
+ident(kid) operator(=) ident(dad)operator(.)ident(new)
+ident(kid)operator(.)ident(name) operator(=) string<delimiter(")content(Rachel)delimiter(")>
+ident(kid)operator(.)ident(age) operator(=) integer(2)
+ident(puts) string<delimiter(")content(Kid's parent is )inline<delimiter(#{)ident(kid)operator(.)ident(parent)operator(.)ident(name)delimiter(})>delimiter(")>
+ident(puts) ident(dad)
+ident(puts) ident(kid)
+
+reserved(class) class(Employee) operator(<) constant(Person)
+    reserved(def) method(initialize)
+        reserved(super)
+        instance_variable(@ok_fields)operator(.)ident(push)operator(()string<delimiter(")content(salary)delimiter(")>operator(,) string<delimiter(")content(boss)delimiter(")>operator(\))
+    reserved(end)
+    reserved(def) method(ok_fields)
+        instance_variable(@ok_fields)
+    reserved(end)
+reserved(end)
+
+
+comment(# @@PLEAC@@_13.13)
+comment(# The ruby garbage collector pretends to cope with circular structures.)
+comment(# You can test it with this code:)
+reserved(class) class(RingNode)
+    ident(attr_accessor) symbol(:next)
+    ident(attr_accessor) symbol(:prev)
+    ident(attr_reader) symbol(:name)
+
+    reserved(def) method(initialize)operator(()ident(aName)operator(\))
+        instance_variable(@name) operator(=) ident(aName)
+        constant(ObjectSpace)operator(.)ident(define_finalizer)operator(()pre_constant(self)operator(,)
+                                     pre_constant(self)operator(.)ident(class)operator(.)ident(method)operator(()symbol(:finalize)operator(\))operator(.)ident(to_proc)operator(\))
+    reserved(end)
+
+    reserved(def) constant(RingNode)operator(.)ident(finalize)operator(()ident(id)operator(\))
+        ident(puts) string<delimiter(")content(Node )inline<delimiter(#{)ident(id)delimiter(})>content( dying)delimiter(")>
+    reserved(end)
+
+    reserved(def) constant(RingNode)operator(.)ident(show_all_objects)
+        constant(ObjectSpace)operator(.)ident(each_object) operator({)operator(|)ident(id)operator(|)
+            ident(puts) ident(id)operator(.)ident(name) reserved(if) ident(id)operator(.)ident(class) operator(==) constant(RingNode)
+        operator(})
+    reserved(end)
+reserved(end)
+
+reserved(def) method(create_test)
+    ident(a) operator(=) constant(RingNode)operator(.)ident(new)operator(()string<delimiter(")content(Node A)delimiter(")>operator(\))
+    ident(b) operator(=) constant(RingNode)operator(.)ident(new)operator(()string<delimiter(")content(Node B)delimiter(")>operator(\))
+    ident(c) operator(=) constant(RingNode)operator(.)ident(new)operator(()string<delimiter(")content(Node C)delimiter(")>operator(\))
+    ident(a)operator(.)ident(next) operator(=) ident(b)
+    ident(b)operator(.)ident(next) operator(=) ident(c)
+    ident(c)operator(.)ident(next) operator(=) ident(a)
+    ident(a)operator(.)ident(prev) operator(=) ident(c)
+    ident(c)operator(.)ident(prev) operator(=) ident(b)
+    ident(b)operator(.)ident(prev) operator(=) ident(a)
+
+    ident(a) operator(=) pre_constant(nil)
+    ident(b) operator(=) pre_constant(nil)
+    ident(c) operator(=) pre_constant(nil)
+reserved(end)
+
+ident(create_test)
+constant(RingNode)operator(.)ident(show_all_objects)
+constant(ObjectSpace)operator(.)ident(garbage_collect)
+ident(puts) string<delimiter(")content(After garbage collection)delimiter(")>
+constant(RingNode)operator(.)ident(show_all_objects)
+
+
+comment(# @@PLEAC@@_13.14)
+reserved(class) class(String)
+    reserved(def) method(<=>)operator(()ident(other)operator(\))
+        pre_constant(self)operator(.)ident(casecmp) ident(other)
+    reserved(end)
+reserved(end)
+
+comment(# There is no way to directly overload the '""' (stringify\) )
+comment(# operator in Ruby.  However, by convention, classes which )
+comment(# can reasonably be converted to a String will define a )
+comment(# 'to_s' method as in the TimeNumber class defined below.)
+comment(# The 'puts' method will automatcally call an object's)
+comment(# 'to_s' method as is demonstrated below.)
+comment(# Furthermore, if a class defines a to_str method, an object of that)
+comment(# class can be used most any place where the interpreter is looking )
+comment(# for a String value.)
+
+comment(#---------------------------------------)
+comment(# NOTE: Ruby has a builtin Time class which would usually be used )
+comment(# to manipulate time objects, the following is supplied for)
+comment(# educational purposes to demonstrate operator overloading.)
+comment(#)
+reserved(class) class(TimeNumber)
+    ident(attr_accessor)  symbol(:hours)operator(,)symbol(:minutes)operator(,)symbol(:seconds)
+    reserved(def) method(initialize)operator(() ident(hours)operator(,) ident(minutes)operator(,) ident(seconds)operator(\))
+        instance_variable(@hours) operator(=) ident(hours)
+        instance_variable(@minutes) operator(=) ident(minutes)
+        instance_variable(@seconds) operator(=) ident(seconds)
+    reserved(end)
+    
+    reserved(def) method(to_s)
+        reserved(return) ident(sprintf)operator(() string<delimiter(")content(%d:%02d:%02d)delimiter(")>operator(,) instance_variable(@hours)operator(,) instance_variable(@minutes)operator(,) instance_variable(@seconds)operator(\))
+    reserved(end)
+
+    reserved(def) method(to_str)
+        ident(to_s)
+    reserved(end)
+
+    reserved(def) method(+)operator(() ident(other)operator(\))
+        ident(seconds) operator(=) instance_variable(@seconds) operator(+) ident(other)operator(.)ident(seconds)
+        ident(minutes) operator(=) instance_variable(@minutes) operator(+) ident(other)operator(.)ident(minutes)
+        ident(hours) operator(=) instance_variable(@hours) operator(+) ident(other)operator(.)ident(hours)
+        reserved(if) ident(seconds) operator(>)operator(=) integer(60)
+            ident(seconds) operator(%=) integer(60)
+            ident(minutes) operator(+=) integer(1)
+        reserved(end)
+        reserved(if) ident(minutes) operator(>)operator(=) integer(60)
+            ident(minutes) operator(%=) integer(60)
+            ident(hours) operator(+=) integer(1)
+        reserved(end)
+        reserved(return) constant(TimeNumber)operator(.)ident(new)operator(()ident(hours)operator(,) ident(minutes)operator(,) ident(seconds)operator(\))
+    reserved(end)
+
+    reserved(def) method(-)operator(()ident(other)operator(\))
+        ident(raise) constant(NotImplementedError)
+    reserved(end)
+
+    reserved(def) method(*)operator(()ident(other)operator(\))
+        ident(raise) constant(NotImplementedError)
+    reserved(end)
+
+    reserved(def) method(/)operator(() ident(other)operator(\))
+        ident(raise) constant(NotImplementedError)
+    reserved(end)
+reserved(end)
+
+ident(t1) operator(=) constant(TimeNumber)operator(.)ident(new)operator(()integer(0)operator(,) integer(58)operator(,) integer(59)operator(\))
+ident(sec) operator(=) constant(TimeNumber)operator(.)ident(new)operator(()integer(0)operator(,) integer(0)operator(,) integer(1)operator(\))
+ident(min) operator(=) constant(TimeNumber)operator(.)ident(new)operator(()integer(0)operator(,) integer(1)operator(,) integer(0)operator(\))
+ident(puts) ident(t1) operator(+) ident(sec) operator(+) ident(min) operator(+) ident(min)
+
+comment(#-----------------------------)
+comment(# StrNum class example: Ruby's builtin String class already has the )
+comment(# capabilities outlined in StrNum Perl example, however the '*' operator)
+comment(# on Ruby's String class acts differently: It creates a string which)
+comment(# is the original string repeated N times.)
+comment(#)
+comment(# Using Ruby's String class as is in this example:)
+ident(x) operator(=) string<delimiter(")content(Red)delimiter(")>operator(;) ident(y) operator(=) string<delimiter(")content(Black)delimiter(")>
+ident(z) operator(=) ident(x)operator(+)ident(y)
+ident(r) operator(=) ident(z)operator(*)integer(3) comment(# r is "RedBlackRedBlackRedBlack")
+ident(puts) string<delimiter(")content(values are )inline<delimiter(#{)ident(x)delimiter(})>content(, )inline<delimiter(#{)ident(y)delimiter(})>content(, )inline<delimiter(#{)ident(z)delimiter(})>content(, and )inline<delimiter(#{)ident(r)delimiter(})>delimiter(")>
+ident(print) string<delimiter(")inline<delimiter(#{)ident(x)delimiter(})>content( is )delimiter(")>operator(,) ident(x) operator(<) ident(y) operator(?) string<delimiter(")content(LT)delimiter(")> operator(:) string<delimiter(")content(GE)delimiter(")>operator(,) string<delimiter(")content( )inline<delimiter(#{)ident(y)delimiter(})>char(\\n)delimiter(")>
+comment(# prints:)
+comment(# values are Red, Black, RedBlack, and RedBlackRedBlackRedBlack)
+comment(# Red is GE Black)
+
+comment(#-----------------------------)
+reserved(class) class(FixNum)
+    constant(REGEX) operator(=) regexp<delimiter(/)content(()char(\\.)char(\\d)content(*\))delimiter(/)>
+    constant(DEFAULT_PLACES) operator(=) integer(0)
+    ident(attr_accessor) symbol(:value)operator(,) symbol(:places)
+    reserved(def) method(initialize)operator(()ident(value)operator(,) ident(places) operator(=) pre_constant(nil)operator(\))
+        instance_variable(@value) operator(=) ident(value)
+        reserved(if) ident(places)
+            instance_variable(@places) operator(=) ident(places)
+        reserved(else)
+            ident(m) operator(=) constant(REGEX)operator(.)ident(match)operator(()ident(value)operator(.)ident(to_s)operator(\)) 
+            reserved(if) ident(m)
+                instance_variable(@places) operator(=) ident(m)operator([)integer(0)operator(])operator(.)ident(length) operator(-) integer(1)
+            reserved(else)
+                instance_variable(@places) operator(=) constant(DEFAULT_PLACES)
+            reserved(end)
+        reserved(end)
+    reserved(end)
+
+    reserved(def) method(+)operator(()ident(other)operator(\))
+        constant(FixNum)operator(.)ident(new)operator(()instance_variable(@value) operator(+) ident(other)operator(.)ident(value)operator(,) ident(max)operator(()instance_variable(@places)operator(,) ident(other)operator(.)ident(places)operator(\))operator(\))
+    reserved(end)
+
+    reserved(def) method(*)operator(()ident(other)operator(\))
+        constant(FixNum)operator(.)ident(new)operator(()instance_variable(@value) operator(*) ident(other)operator(.)ident(value)operator(,) ident(max)operator(()instance_variable(@places)operator(,) ident(other)operator(.)ident(places)operator(\))operator(\))
+    reserved(end)
+
+    reserved(def) method(/)operator(()ident(other)operator(\))
+        ident(puts) string<delimiter(")content(Divide: )inline<delimiter(#{)instance_variable(@value)operator(.)ident(to_f)operator(/)ident(other)operator(.)ident(value)operator(.)ident(to_f)delimiter(})>delimiter(")>
+        ident(result) operator(=) constant(FixNum)operator(.)ident(new)operator(()instance_variable(@value)operator(.)ident(to_f)operator(/)ident(other)operator(.)ident(value)operator(.)ident(to_f)operator(\))
+        ident(result)operator(.)ident(places) operator(=) ident(max)operator(()ident(result)operator(.)ident(places)operator(,)ident(other)operator(.)ident(places)operator(\)) 
+        ident(result)
+    reserved(end)
+
+    reserved(def) method(to_s)
+        ident(sprintf)operator(()string<delimiter(")content(STR%s: %.*f)delimiter(")>operator(,) pre_constant(self)operator(.)ident(class)operator(.)ident(to_s) operator(,) instance_variable(@places)operator(,) instance_variable(@value)operator(\))   comment(#.)
+    reserved(end)  
+
+    reserved(def) method(to_str)
+        ident(to_s)
+    reserved(end)
+
+    reserved(def) method(to_i) comment(#convert to int)
+        instance_variable(@value)operator(.)ident(to_i)
+    reserved(end)
+
+    reserved(def) method(to_f) comment(#convert to float`)
+        instance_variable(@value)operator(.)ident(to_f)
+    reserved(end)
+
+    ident(private)
+    reserved(def) method(max)operator(()ident(a)operator(,)ident(b)operator(\))
+        ident(a) operator(>) ident(b) operator(?) ident(a) operator(:) ident(b)
+    reserved(end)
+reserved(end)
+
+reserved(def) method(demo)operator(()operator(\))
+    ident(x) operator(=) constant(FixNum)operator(.)ident(new)operator(()integer(40)operator(\))
+    ident(y) operator(=) constant(FixNum)operator(.)ident(new)operator(()integer(12)operator(,) integer(0)operator(\))
+
+    ident(puts) string<delimiter(")content(sum of )inline<delimiter(#{)ident(x)delimiter(})>content( and )inline<delimiter(#{)ident(y)delimiter(})>content( is  )inline<delimiter(#{)ident(x)operator(+)ident(y)delimiter(})>delimiter(")>
+    ident(puts) string<delimiter(")content(product of )inline<delimiter(#{)ident(x)delimiter(})>content( and )inline<delimiter(#{)ident(y)delimiter(})>content( is )inline<delimiter(#{)ident(x)operator(*)ident(y)delimiter(})>delimiter(")>
+
+    ident(z) operator(=) ident(x)operator(/)ident(y)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(z)delimiter(})>content( has )inline<delimiter(#{)ident(z)operator(.)ident(places)delimiter(})>content( places)delimiter(")>
+    reserved(unless) ident(z)operator(.)ident(places)
+        ident(z)operator(.)ident(places) operator(=) integer(2)
+    reserved(end)
+
+    ident(puts) string<delimiter(")content(div of )inline<delimiter(#{)ident(x)delimiter(})>content( by )inline<delimiter(#{)ident(y)delimiter(})>content( is )inline<delimiter(#{)ident(z)delimiter(})>delimiter(")>
+    ident(puts) string<delimiter(")content(square of that is  )inline<delimiter(#{)ident(z)operator(*)ident(z)delimiter(})>delimiter(")>
+reserved(end)
+
+reserved(if) pre_constant(__FILE__) operator(==) global_variable($0)
+    ident(demo)operator(()operator(\))
+reserved(end)
+
+
+comment(# @@PLEAC@@_14.1)
+comment(# There are dbm, sdbm, gdbm modules)
+comment(# and the bdb module for accessing the berkeley db)
+comment(# sdbm seem to be available on the most systems,)
+comment(# so we use it here)
+comment(#)
+ident(require) string<delimiter(")content(sdbm)delimiter(")>
+constant(SDBM)operator(.)ident(open)operator(()string<delimiter(")content(filename)delimiter(")>operator(,) integer(0666)operator(\)) operator({) operator(|)ident(dbobj)operator(|)
+    comment(# raises exception if open error)
+    
+    comment(# the returned sdbm-dbobj has most of the methods of a hash)
+    ident(v) operator(=) ident(dbobj)operator([)string<delimiter(")content(key)delimiter(")>operator(])
+    ident(dbobj)operator([)string<delimiter(")content(key)delimiter(")>operator(]) operator(=) string<delimiter(")content(newvalue)delimiter(")>
+    reserved(if) ident(dbobj)operator(.)ident(has_key?)operator(()string<delimiter(")content(key)delimiter(")>operator(\))
+        comment(# ...)
+    reserved(end)
+    ident(dbobj)operator(.)ident(delete)operator(()string<delimiter(")content(key2)delimiter(")>operator(\))
+operator(})
+comment(# database is open only inside the block.)
+
+comment(# It is also possible to use a open .. close pair:)
+ident(dbobj) operator(=) constant(SDBM)operator(.)ident(open)operator(()string<delimiter(")content(filename)delimiter(")>operator(,) integer(0666)operator(\))
+comment(#.. do something with dbobj)
+ident(dbobj)operator(.)ident(close)
+
+comment(#!/usr/bin/ruby -w)
+comment(# userstats - generate statistics on who is logged in)
+comment(# call with usernames as argument to display the totals)
+comment(# for the given usernames, call with "ALL" to display all users)
+
+ident(require) string<delimiter(")content(sdbm)delimiter(")>
+ident(filename) operator(=) string<delimiter(')content(/tmp/userstats.db)delimiter(')>
+constant(SDBM)operator(.)ident(open)operator(()ident(filename)operator(,) integer(0666)operator(\)) operator({) operator(|)ident(dbobj)operator(|)
+    reserved(if) pre_constant(ARGV)operator(.)ident(length) operator(>) integer(0)
+        reserved(if) pre_constant(ARGV)operator([)integer(0)operator(]) operator(==) string<delimiter(")content(ALL)delimiter(")>
+            comment(# ARGV is constant, so we need the variable userlist)
+            ident(userlist) operator(=) ident(dbobj)operator(.)ident(keys)operator(()operator(\))operator(.)ident(sort)operator(()operator(\))
+        reserved(else)
+            ident(userlist) operator(=) pre_constant(ARGV)
+        reserved(end)
+        ident(userlist)operator(.)ident(each) operator({) operator(|)ident(user)operator(|)
+            ident(print) string<delimiter(")inline<delimiter(#{)ident(user)delimiter(})>char(\\t)inline<delimiter(#{)ident(dbobj)operator([)ident(user)operator(])delimiter(})>char(\\n)delimiter(")>
+        operator(})
+    reserved(else)
+        ident(who) operator(=) shell<delimiter(`)content(who)delimiter(`)>
+        ident(who)operator(.)ident(split)operator(()string<delimiter(")char(\\n)delimiter(")>operator(\))operator(.)ident(each) operator({) operator(|)ident(line)operator(|)
+            ident(md) operator(=) regexp<delimiter(/)content(^()char(\\S)content(+\))delimiter(/)>operator(.)ident(match)operator(()ident(line)operator(\))
+            ident(raise) string<delimiter(")content(Bad line from who: )inline<delimiter(#{)ident(line)delimiter(})>delimiter(")> reserved(unless) ident(md)
+            comment(# sdbm stores only strings, so "+=" doesn't work,)
+            comment(# we need to convert them expicitly back to integer.)
+            reserved(if) ident(dbobj)operator(.)ident(has_key?)operator(()ident(md)operator([)integer(0)operator(])operator(\))
+                ident(dbobj)operator([)ident(md)operator([)integer(0)operator(])operator(]) operator(=) ident(dbobj)operator([)ident(md)operator([)integer(0)operator(])operator(])operator(.)ident(to_i) operator(+) integer(1)
+            reserved(else)
+                ident(dbobj)operator([)ident(md)operator([)integer(0)operator(])operator(]) operator(=) string<delimiter(")content(1)delimiter(")>
+            reserved(end)
+        operator(})
+    reserved(end)
+operator(})
+
+
+comment(# @@PLEAC@@_14.2)
+comment(# using open and clear)
+ident(dbobj) operator(=) constant(SDBM)operator(.)ident(open)operator(()string<delimiter(")content(filename)delimiter(")>operator(,) integer(0666)operator(\))
+ident(dbobj)operator(.)ident(clear)operator(()operator(\))
+ident(dbobj)operator(.)ident(close)operator(()operator(\))
+comment(# deleting file and recreating it)
+comment(# the filenames depend on the flavor of dbm you use,)
+comment(# for example sdbm has two files named filename.pag and filename.dir,)
+comment(# so you need to delete both files)
+reserved(begin)
+    constant(File)operator(.)ident(delete)operator(()string<delimiter(")content(filename)delimiter(")>operator(\))
+    comment(# raises Exception if not exist)
+    ident(dbobj) operator(=) constant(SDBM)operator(.)ident(open)operator(()string<delimiter(")content(filename)delimiter(")>operator(,) integer(0666)operator(\))
+reserved(rescue)
+    comment(# add error handling here)
+reserved(end)
+
+
+comment(# @@PLEAC@@_14.3)
+comment(# sdbm2gdbm: converts sdbm database to a gdbm database)
+ident(require) string<delimiter(")content(sdbm)delimiter(")>
+ident(require) string<delimiter(")content(gdbm)delimiter(")>
+
+reserved(unless) pre_constant(ARGV)operator(.)ident(length) operator(==) integer(2)
+    ident(fail) string<delimiter(")content(usage: sdbm2gdbm infile outfile)delimiter(")>
+reserved(end)
+ident(infile) operator(=) pre_constant(ARGV)operator([)integer(0)operator(])
+ident(outfile) operator(=) pre_constant(ARGV)operator([)integer(1)operator(])
+
+ident(sdb) operator(=) constant(SDBM)operator(.)ident(open)operator(()ident(infile)operator(\))
+ident(gdb) operator(=) constant(GDBM)operator(.)ident(open)operator(()ident(outfile)operator(,) integer(0666)operator(\))
+ident(sdb)operator(.)ident(each) operator({) operator(|)ident(key)operator(,) ident(val)operator(|)
+    ident(gdb)operator([)ident(key)operator(]) operator(=) ident(val)
+operator(})
+ident(gdb)operator(.)ident(close)
+ident(sdb)operator(.)ident(close)
+
+
+comment(# @@PLEAC@@_14.4)
+comment(#!/usr/bin/ruby -w)
+comment(# dbmmerge: merges two dbm databases)
+ident(require) string<delimiter(")content(sdbm)delimiter(")>
+
+reserved(unless) pre_constant(ARGV)operator(.)ident(length) operator(==) integer(3)
+    ident(fail) string<delimiter(")content(usage: dbmmerge indb1 indb2 outdb)delimiter(")>
+reserved(end)
+ident(infile1) operator(=) pre_constant(ARGV)operator([)integer(0)operator(])
+ident(infile2) operator(=) pre_constant(ARGV)operator([)integer(0)operator(])
+ident(outfile) operator(=) pre_constant(ARGV)operator([)integer(2)operator(])
+
+ident(in1) operator(=) constant(SDBM)operator(.)ident(open)operator(()ident(infile1)operator(,) pre_constant(nil)operator(\))
+ident(in2) operator(=) constant(SDBM)operator(.)ident(open)operator(()ident(infile2)operator(,) pre_constant(nil)operator(\))
+ident(outdb) operator(=) constant(SDBM)operator(.)ident(open)operator(()ident(outfile)operator(,) integer(0666)operator(\))
+
+operator([)ident(in1)operator(,) ident(in2)operator(])operator(.)ident(each) operator({) operator(|)ident(indb)operator(|)
+    ident(indb)operator(.)ident(each) operator({) operator(|)ident(key)operator(,) ident(val)operator(|)
+        reserved(if) ident(outdb)operator(.)ident(has_key?)operator(()ident(key)operator(\))
+            comment(# decide which value to set.)
+            comment(# set outdb[key] if necessary)
+        reserved(else)
+            ident(outdb)operator([)ident(key)operator(]) operator(=) ident(val)
+        reserved(end)
+    operator(})
+operator(})
+ident(in1)operator(.)ident(close)
+ident(in2)operator(.)ident(close)
+ident(outdb)operator(.)ident(close)
+
+
+comment(# @@PLEAC@@_14.7)
+comment(# we write a tie method that extends the Array class.)
+comment(# It reads the file into the memory, executes the code block)
+comment(# in which you can manipulate the array as needed, and writes)
+comment(# the array back to the file after the end of the block execution)
+reserved(class) class(Array)
+    reserved(def) method(tie)operator(()ident(filename)operator(,) ident(flags)operator(\))
+        constant(File)operator(.)ident(open)operator(()ident(filename)operator(,) ident(flags)operator(\)) operator({) operator(|)ident(f)operator(|)
+            ident(f)operator(.)ident(each_line) operator({) operator(|)ident(line)operator(|)
+                pre_constant(self)operator(.)ident(push)operator(()ident(line)operator(.)ident(chomp)operator(\))
+            operator(})
+            reserved(yield)
+            ident(f)operator(.)ident(rewind)
+            ident(each) operator({) operator(|)ident(line)operator(|)
+                reserved(if) ident(line)
+                    ident(f)operator(.)ident(puts)operator(()ident(line)operator(\))
+                reserved(else)
+                    ident(f)operator(.)ident(puts) string<delimiter(")delimiter(")>
+                reserved(end)
+            operator(})
+        operator(})
+    reserved(end)
+reserved(end)
+
+ident(array) operator(=) constant(Array)operator(.)ident(new)
+ident(array)operator(.)ident(tie)operator(()string<delimiter(")content(/tmp/textfile.txt)delimiter(")>operator(,) constant(File)operator(::)constant(RDWR)operator(|)constant(File)operator(::)constant(CREAT)operator(\)) operator({)
+    ident(array)operator([)integer(4)operator(]) operator(=) string<delimiter(")content(a new line 4)delimiter(")>
+operator(})
+
+comment(# The tied array can be manipulated like a normal array,)
+comment(# so there is no need for a special API, and the recno_demo program)
+comment(# to demonstrate is API is useless)
+
+
+comment(# tied array demo: show how to use array with a tied file)
+ident(filename) operator(=) string<delimiter(")content(db_file.txt)delimiter(")>
+ident(lines) operator(=) constant(Array)operator(.)ident(new)
+constant(File)operator(.)ident(unlink)operator(()ident(filename)operator(\)) reserved(if) constant(File)operator(.)ident(exists?)operator(()ident(filename)operator(\))
+ident(lines)operator(.)ident(tie)operator(()ident(filename)operator(,) constant(File)operator(::)constant(RDWR) operator(|) constant(File)operator(::)constant(CREAT)operator(\)) operator({)
+    comment(# first create a textfile to play with)
+    ident(lines)operator([)integer(0)operator(]) operator(=) string<delimiter(")content(zero)delimiter(")>
+    ident(lines)operator([)integer(1)operator(]) operator(=) string<delimiter(")content(one)delimiter(")>
+    ident(lines)operator([)integer(2)operator(]) operator(=) string<delimiter(")content(two)delimiter(")>
+    ident(lines)operator([)integer(3)operator(]) operator(=) string<delimiter(")content(three)delimiter(")>
+    ident(lines)operator([)integer(4)operator(]) operator(=) string<delimiter(")content(four)delimiter(")>
+
+    comment(# print the records in order.)
+    comment(# Opposed to perl, the tied array behaves exactly as a normal array)
+    ident(puts) string<delimiter(")char(\\n)content(Original)delimiter(")>
+    reserved(for) ident(i) reserved(in) integer(0)operator(..)operator(()ident(lines)operator(.)ident(length)integer(-1)operator(\))
+        ident(puts) string<delimiter(")inline<delimiter(#{)ident(i)delimiter(})>content(: )inline<delimiter(#{)ident(lines)operator([)ident(i)operator(])delimiter(})>delimiter(")>
+    reserved(end)
+
+    comment(#use push and pop)
+    ident(a) operator(=) ident(lines)operator(.)ident(pop)
+    ident(lines)operator(.)ident(push)operator(()string<delimiter(")content(last)delimiter(")>operator(\))
+    ident(puts)operator(()string<delimiter(")content(The last line was [)inline<delimiter(#{)ident(a)delimiter(})>content(])delimiter(")>operator(\))
+
+    comment(#use shift and unshift)
+    ident(a) operator(=) ident(lines)operator(.)ident(shift)
+    ident(lines)operator(.)ident(unshift)operator(()string<delimiter(")content(first)delimiter(")>operator(\))
+    ident(puts)operator(()string<delimiter(")content(The first line was [)inline<delimiter(#{)ident(a)delimiter(})>content(])delimiter(")>operator(\))
+
+    comment(# add record after record 2)
+    ident(i) operator(=) integer(2)
+    ident(lines)operator(.)ident(insert)operator(()ident(i) operator(+) integer(1)operator(,) string<delimiter(")content(Newbie)delimiter(")>operator(\))
+
+    comment(# add record before record one)
+    ident(i) operator(=) integer(1)
+    ident(lines)operator(.)ident(insert)operator(()ident(i)operator(,) string<delimiter(")content(New One)delimiter(")>operator(\))
+
+    comment(# delete record 3)
+    ident(lines)operator(.)ident(delete_at)operator(()integer(3)operator(\))
+
+    comment(#now print the records in reverse order)
+    ident(puts) string<delimiter(")char(\\n)content(Reverse)delimiter(")>
+    operator(()ident(lines)operator(.)ident(length) operator(-) integer(1)operator(\))operator(.)ident(downto)operator(()integer(0)operator(\))operator({) operator(|)ident(i)operator(|)
+        ident(puts) string<delimiter(")inline<delimiter(#{)ident(i)delimiter(})>content(: )inline<delimiter(#{)ident(lines)operator([)ident(i)operator(])delimiter(})>delimiter(")>
+    operator(})
+
+operator(})
+
+
+comment(# @@PLEAC@@_14.8)
+comment(# example to store complex data in a database)
+comment(# uses marshall from the standard library)
+ident(require) string<delimiter(")content(sdbm)delimiter(")>
+ident(db) operator(=) constant(SDBM)operator(.)ident(open)operator(()string<delimiter(")content(pleac14-8-database)delimiter(")>operator(,) integer(0666)operator(\))
+
+comment(# convert the Objects into strings and back by using the Marshal module.)
+comment(# Most normal objects can be converted out of the box,)
+comment(# but not special things like procedure objects,)
+comment(# IO instance variables, singleton objects)
+
+ident(db)operator([)string<delimiter(")content(Tom Christiansen)delimiter(")>operator(]) operator(=) constant(Marshal)operator(.)ident(dump)operator(()operator([)string<delimiter(")content(book author)delimiter(")>operator(,)  string<delimiter(")content(tchrist@perl.com)delimiter(")>operator(])operator(\))
+ident(db)operator([)string<delimiter(")content(Tom Boutell)delimiter(")>operator(]) operator(=) constant(Marshal)operator(.)ident(dump)operator(()operator([)string<delimiter(")content(shareware author)delimiter(")>operator(,)
+string<delimiter(")content(boutell@boutell.com)delimiter(")>operator(])operator(\))
+
+ident(name1) operator(=) string<delimiter(")content(Tom Christiansen)delimiter(")>
+ident(name2) operator(=) string<delimiter(")content(Tom Boutell)delimiter(")>
+
+ident(tom1) operator(=) constant(Marshal)operator(.)ident(load)operator(()ident(db)operator([)ident(name1)operator(])operator(\))
+ident(tom2) operator(=) constant(Marshal)operator(.)ident(load)operator(()ident(db)operator([)ident(name2)operator(])operator(\))
+
+ident(puts) string<delimiter(")content(Two Toming: )inline<delimiter(#{)ident(tom1)delimiter(})>content( )inline<delimiter(#{)ident(tom2)delimiter(})>delimiter(")>
+
+reserved(if) ident(tom1)operator([)integer(0)operator(]) operator(==) ident(tom2)operator([)integer(0)operator(]) operator(&&) ident(tom1)operator([)integer(1)operator(]) operator(==) ident(tom2)operator([)integer(1)operator(])
+   ident(puts) string<delimiter(")content(You're having runtime fun with one Tom made two.)delimiter(")>
+reserved(else)
+   ident(puts) string<delimiter(")content(No two Toms are ever alike)delimiter(")>
+reserved(end)
+
+comment(# To change parts of an entry, get the whole entry, change the parts,)
+comment(# and save the whole entry back)
+ident(entry) operator(=) constant(Marshal)operator(.)ident(load)operator(()ident(db)operator([)string<delimiter(")content(Tom Boutell)delimiter(")>operator(])operator(\))
+ident(entry)operator([)integer(0)operator(]) operator(=) string<delimiter(")content(Poet Programmer)delimiter(")>
+ident(db)operator([)string<delimiter(")content(Tom Boutell)delimiter(")>operator(]) operator(=) constant(Marshal)operator(.)ident(dump)operator(()ident(entry)operator(\))
+ident(db)operator(.)ident(close)
+
+
+comment(# @@PLEAC@@_14.9)
+comment(# example to make data persistent)
+comment(# uses Marshal from the standard lib)
+comment(# Stores the data in a simple file,)
+comment(# see 14.8 on how to store it in a dbm file)
+
+comment(# The BEGIN block is executed before the rest of the script)
+comment(# we use global variables here because local variables)
+comment(# will go out of scope and are not accessible from the main script)
+
+reserved(BEGIN) operator({)
+   global_variable($persistent_store) operator(=) string<delimiter(")content(persitence.dat)delimiter(")>
+   reserved(begin)
+     constant(File)operator(.)ident(open)operator(()global_variable($persistent_store)operator(\)) reserved(do) operator(|)ident(f)operator(|)
+       global_variable($stringvariable1) operator(=) constant(Marshal)operator(.)ident(load)operator(()ident(f)operator(\))
+       global_variable($arrayvariable2) operator(=) constant(Marshal)operator(.)ident(load)operator(()ident(f)operator(\))
+     reserved(end)
+   reserved(rescue)
+     ident(puts) string<delimiter(")content(Can not open )inline<delimiter(#{)global_variable($persistent_store)delimiter(})>delimiter(")>
+     comment(# Initialisation if this script runs the first time)
+     global_variable($stringvariable1) operator(=) string<delimiter(")delimiter(")>
+     global_variable($arrayvariable2) operator(=) operator([)operator(])
+   reserved(end)
+operator(})
+
+reserved(END) operator({)
+   constant(File)operator(.)ident(open)operator(()global_variable($persistent_store)operator(,) string<delimiter(")content(w+)delimiter(")>operator(\)) reserved(do) operator(|)ident(f)operator(|)
+     constant(Marshal)operator(.)ident(dump)operator(()global_variable($stringvariable1)operator(,) ident(f)operator(\))
+     constant(Marshal)operator(.)ident(dump)operator(()global_variable($arrayvariable2)operator(,) ident(f)operator(\))
+   reserved(end)
+operator(})
+
+comment(# simple test program)
+ident(puts) global_variable($stringvariable1)
+ident(puts) global_variable($arrayvariable2)
+global_variable($stringvariable1) operator(=) string<delimiter(")content(Hello World)delimiter(")>
+global_variable($arrayvariable2)operator(.)ident(push)operator(()integer(5)operator(\))
+ident(puts) global_variable($stringvariable1)
+ident(puts) global_variable($arrayvariable2)
+
+
+comment(# @@PLEAC@@_14.10)
+comment(#!/usr/bin/ruby -w)
+comment(# Ruby has a dbi module with an architecture similar)
+comment(# to the Perl dbi module: the dbi module provides an unified)
+comment(# interface and uses specialized drivers for each dbms vendor)
+comment(#)
+reserved(begin)
+    constant(DBI)operator(.)ident(connect)operator(()string<delimiter(")content(DBI:driver:driverspecific)delimiter(")>operator(,) string<delimiter(")content(username)delimiter(")>operator(,) string<delimiter(")content(auth)delimiter(")>operator(\)) operator({)
+        operator(|)ident(dbh)operator(|)
+
+        ident(dbh)operator(.)ident(do)operator(()constant(SQL1)operator(\))
+
+        ident(dbh)operator(.)ident(prepare)operator(()constant(SQL2)operator(\))operator({) operator(|)ident(sth)operator(|)
+            ident(sth)operator(.)ident(execute)
+            ident(sth)operator(.)ident(fetch) operator({)operator(|)ident(row)operator(|)
+                comment(# ...)
+            operator(})
+        operator(}) comment(# end of block finishes the statement handle)
+    operator(}) comment(# end of block closes the database connection)
+reserved(rescue) constant(DBI)operator(::)constant(DatabaseError) operator(=)operator(>) ident(e)
+    ident(puts) string<delimiter(")content(dbi error occurred)delimiter(")>
+    ident(puts) string<delimiter(")content(Error code: )inline<delimiter(#{)ident(e)operator(.)ident(err)delimiter(})>delimiter(")>
+    ident(puts) string<delimiter(")content(Error message: )inline<delimiter(#{)ident(e)operator(.)ident(errstr)delimiter(})>delimiter(")>
+reserved(end)
+
+comment(#!/usr/bin/ruby -w)
+comment(# dbusers - example for mysql which creates a table,)
+comment(# fills it with values, retrieves the values back,)
+comment(# and finally destroys the table.)
+
+ident(require) string<delimiter(")content(dbi)delimiter(")>
+
+comment(# replacement for the User::pwnt module)
+reserved(def) method(getpwent)
+    ident(result) operator(=) operator([)operator(])
+    constant(File)operator(.)ident(open)operator(()string<delimiter(")content(/etc/passwd)delimiter(")>operator(\)) operator({)operator(|)ident(file)operator(|)
+        ident(file)operator(.)ident(each_line) operator({)operator(|)ident(line)operator(|)
+            reserved(next) reserved(if) ident(line)operator(.)ident(match)operator(()regexp<delimiter(/)content(^#)delimiter(/)>operator(\))
+            ident(cols) operator(=) ident(line)operator(.)ident(split)operator(()string<delimiter(")content(:)delimiter(")>operator(\))
+            ident(result)operator(.)ident(push)operator(()operator([)ident(cols)operator([)integer(2)operator(])operator(,) ident(cols)operator([)integer(0)operator(])operator(])operator(\))
+        operator(})
+    operator(})
+    ident(result)
+reserved(end)
+
+reserved(begin)
+    constant(DBI)operator(.)ident(connect)operator(()string<delimiter(")content(DBI:Mysql:pleacdatabase)delimiter(")>operator(,) string<delimiter(")content(pleac)delimiter(")>operator(,) string<delimiter(")content(pleacpassword)delimiter(")>operator(\)) operator({)
+        operator(|)ident(conn)operator(|)
+
+        ident(conn)operator(.)ident(do)operator(()string<delimiter(")content(CREATE TABLE users (uid INT, login CHAR(8\)\))delimiter(")>operator(\))
+
+        ident(users) operator(=) ident(getpwent)
+
+        ident(conn)operator(.)ident(prepare)operator(()string<delimiter(")content(INSERT INTO users VALUES (?,?\))delimiter(")>operator(\)) operator({)operator(|)ident(sth)operator(|)
+            ident(users)operator(.)ident(each) operator({)operator(|)ident(entry)operator(|)
+                ident(sth)operator(.)ident(execute)operator(()ident(entry)operator([)integer(0)operator(])operator(,) ident(entry)operator([)integer(1)operator(])operator(\))
+            operator(})
+        operator(})
+
+        ident(conn)operator(.)ident(execute)operator(()string<delimiter(")content(SELECT uid, login FROM users WHERE uid < 50)delimiter(")>operator(\)) operator({)operator(|)ident(sth)operator(|)
+            ident(sth)operator(.)ident(fetch) operator({)operator(|)ident(row)operator(|)
+                ident(puts) ident(row)operator(.)ident(collect) operator({)operator(|)ident(col)operator(|)
+                    reserved(if) ident(col)operator(.)ident(nil?)
+                        string<delimiter(")content((null\))delimiter(")>
+                    reserved(else)
+                        ident(col)
+                    reserved(end)
+                operator(})operator(.)ident(join)operator(()string<delimiter(")content(, )delimiter(")>operator(\))
+            operator(})
+        operator(})
+
+        ident(conn)operator(.)ident(do)operator(()string<delimiter(")content(DROP TABLE users)delimiter(")>operator(\))
+    operator(})
+reserved(rescue) constant(DBI)operator(::)constant(DatabaseError) operator(=)operator(>) ident(e)
+    ident(puts) string<delimiter(")content(dbi error occurred)delimiter(")>
+    ident(puts) string<delimiter(")content(Error code: )inline<delimiter(#{)ident(e)operator(.)ident(err)delimiter(})>delimiter(")>
+    ident(puts) string<delimiter(")content(Error message: )inline<delimiter(#{)ident(e)operator(.)ident(errstr)delimiter(})>delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_15.1)
+comment(# This test program demonstrates parsing program arguments.)
+comment(# It uses the optparse library, which is included with ruby 1.8)
+comment(# It handles classic unix style and gnu style options)
+ident(require) string<delimiter(')content(optparse)delimiter(')>
+
+instance_variable(@debugmode) operator(=) pre_constant(false)
+instance_variable(@verbose) operator(=) pre_constant(false)
+
+pre_constant(ARGV)operator(.)ident(options) reserved(do) operator(|)ident(opts)operator(|)
+    ident(opts)operator(.)ident(banner) operator(=) string<delimiter(")content(Usage: ruby )inline<delimiter(#{)global_variable($0)delimiter(})>content( [OPTIONS] INPUTFILES)delimiter(")>
+
+    ident(opts)operator(.)ident(on)operator(()string<delimiter(")content(-h)delimiter(")>operator(,) string<delimiter(")content(--help)delimiter(")>operator(,) string<delimiter(")content(show this message)delimiter(")>operator(\)) operator({)
+        ident(puts) ident(opts)
+        ident(exit)
+    operator(})
+    comment(# The OptionParser#on method is called with a specification of short)
+    comment(# options, of long options, a data type spezification and user help)
+    comment(# messages for this option.)
+    comment(# The method analyses the given parameter and decides what it is,)
+    comment(# so you can leave out the long option if you don't need it)
+    ident(opts)operator(.)ident(on)operator(()string<delimiter(")content(-v)delimiter(")>operator(,) string<delimiter(")content(--[no-]verbose=[FLAG])delimiter(")>operator(,) constant(TrueClass)operator(,) string<delimiter(")content(run verbosly)delimiter(")>operator(\)) operator({)
+        operator(|)instance_variable(@verbose)operator(|)   comment(# sets @verbose to true or false)
+    operator(})
+    ident(opts)operator(.)ident(on)operator(()string<delimiter(")content(-D)delimiter(")>operator(,) string<delimiter(")content(--DEBUG)delimiter(")>operator(,) constant(TrueClass)operator(,) string<delimiter(")content(turns on debug mode)delimiter(")> operator(\))operator({)
+        operator(|)instance_variable(@debugmode)operator(|)   comment(# sets @debugmode to true)
+    operator(})
+    ident(opts)operator(.)ident(on)operator(()string<delimiter(")content(-c)delimiter(")>operator(,) string<delimiter(")content(--count=NUMBER)delimiter(")>operator(,) constant(Integer)operator(,) string<delimiter(")content(how many times we do it)delimiter(")> operator(\))operator({)
+        operator(|)instance_variable(@count)operator(|)      comment(# sets @count to given integer)
+    operator(})
+    ident(opts)operator(.)ident(on)operator(()string<delimiter(")content(-o)delimiter(")>operator(,) string<delimiter(")content(--output=FILE)delimiter(")>operator(,) constant(String)operator(,) string<delimiter(")content(file to write output to)delimiter(")>operator(\))operator({)
+        operator(|)instance_variable(@outputfile)operator(|)   comment(# sets @outputfile to given string)
+    operator(})
+    ident(opts)operator(.)ident(parse!)
+reserved(end)
+
+comment(# example to use the options in the main program)
+ident(puts) string<delimiter(")content(Verbose is on)delimiter(")> reserved(if) instance_variable(@verbose)
+ident(puts) string<delimiter(")content(Debugmode is on)delimiter(")> reserved(if) instance_variable(@debugmode)
+ident(puts) string<delimiter(")content(Outfile is )inline<delimiter(#{)instance_variable(@outputfile)delimiter(})>delimiter(")> reserved(if) reserved(defined?) instance_variable(@outputfile)
+ident(puts) string<delimiter(")content(Count is )inline<delimiter(#{)instance_variable(@count)delimiter(})>delimiter(")> reserved(if) reserved(defined?) instance_variable(@count)
+pre_constant(ARGV)operator(.)ident(each) operator({) operator(|)ident(param)operator(|)
+    ident(puts) string<delimiter(")content(Got parameter )inline<delimiter(#{)ident(param)delimiter(})>delimiter(")>
+operator(})
+
+
+comment(# @@PLEAC@@_15.4)
+ident(buf) operator(=) string<delimiter(")char(\\0)delimiter(")> operator(*) integer(8)
+global_variable($stdout)operator(.)ident(ioctl)operator(()integer(0x5413)operator(,) ident(buf)operator(\))
+ident(ws_row)operator(,) ident(ws_col)operator(,) ident(ws_xpixel)operator(,) ident(ws_ypixel) operator(=) ident(buf)operator(.)ident(unpack)operator(()string<delimiter(")content(S4)delimiter(")>operator(\))
+
+ident(raise) string<delimiter(")content(You must have at least 20 characters)delimiter(")> reserved(unless) ident(ws_col) operator(>)operator(=) integer(20)
+ident(max) operator(=) integer(0)
+ident(values) operator(=) operator(()integer(1)operator(..)integer(5)operator(\))operator(.)ident(collect) operator({) ident(rand)operator(()integer(20)operator(\)) operator(})  comment(# generate an array[5] of rand values)
+reserved(for) ident(i) reserved(in) ident(values)
+    ident(max) operator(=) ident(i) reserved(if) ident(max) operator(<) ident(i)
+reserved(end)
+ident(ratio) operator(=) ident(Float)operator(()ident(ws_col)integer(-12)operator(\))operator(/)ident(max)          comment(# chars per unit)
+reserved(for) ident(i) reserved(in) ident(values)
+    ident(printf) string<delimiter(")content(%8.1f %s)char(\\n)delimiter(")>operator(,) ident(i)operator(,) string<delimiter(")content(*)delimiter(")> operator(*) operator(()ident(ratio)operator(*)ident(i)operator(\))
+reserved(end)
+
+comment(# gives, for example:)
+comment(#   15.0 *******************************)
+comment(#   10.0 *********************)
+comment(#    5.0 **********)
+comment(#   14.0 *****************************)
+comment(#   18.0 **************************************)
+
+
+comment(# @@PLEAC@@_16.1)
+ident(output) operator(=) shell<delimiter(`)content(program args)delimiter(`)>       comment(# collect output into one multiline string)
+ident(output) operator(=) shell<delimiter(`)content(program args)delimiter(`)>operator(.)ident(split) comment(# collect output into array, one line per)
+ident(element)
+
+ident(readme) operator(=) constant(IO)operator(.)ident(popen)operator(()string<delimiter(")content(ls)delimiter(")>operator(\))
+ident(output) operator(=) string<delimiter(")delimiter(")>
+reserved(while) ident(readme)operator(.)ident(gets) reserved(do)
+    ident(output) operator(+=) global_variable($_)
+reserved(end)
+ident(readme)operator(.)ident(close)
+
+shell<delimiter(`)content(fsck -y /dev/rsd1a)delimiter(`)>  comment(# BAD AND SCARY in Perl because it's managed by the shell)
+                      comment(# I donna in Ruby ...)
+
+comment(# so the "clean and secure" version)
+ident(readme)operator(,) ident(writeme) operator(=) constant(IO)operator(.)ident(pipe)
+ident(pid) operator(=) ident(fork) operator({)
+    comment(# child)
+    global_variable($stdout) operator(=) ident(writeme)
+    ident(readme)operator(.)ident(close)
+    ident(exec)operator(()string<delimiter(')content(find)delimiter(')>operator(,) string<delimiter(')content(..)delimiter(')>operator(\))
+operator(})
+comment(# parent)
+constant(Process)operator(.)ident(waitpid)operator(()ident(pid)operator(,) integer(0)operator(\))
+ident(writeme)operator(.)ident(close)
+reserved(while) ident(readme)operator(.)ident(gets) reserved(do)
+    comment(# do something with $_)
+reserved(end)
+
+
+comment(# @@PLEAC@@_16.2)
+ident(status) operator(=) ident(system)operator(()string<delimiter(")content(xemacs )inline<delimiter(#{)ident(myfile)delimiter(})>delimiter(")>operator(\))
+
+ident(status) operator(=) ident(system)operator(()string<delimiter(")content(xemacs)delimiter(")>operator(,) ident(myfile)operator(\))
+
+ident(system)operator(()string<delimiter(")content(cmd1 args | cmd2 | cmd3 >outfile)delimiter(")>operator(\))
+ident(system)operator(()string<delimiter(")content(cmd args <infile >outfile 2>errfile)delimiter(")>operator(\))
+
+comment(# stop if the command fails)
+ident(raise) string<delimiter(")content($program exited funny: )inline<delimiter(#{)global_variable($?)delimiter(})>delimiter(")> reserved(unless) ident(system)operator(()string<delimiter(")content(cmd)delimiter(")>operator(,) string<delimiter(")content(args1)delimiter(")>operator(,) string<delimiter(")content(args2)delimiter(")>operator(\))
+
+comment(# get the value of the signal sent to the child)
+comment(# even if it is a SIGINT or SIGQUIT)
+ident(system)operator(()ident(arglist)operator(\))
+ident(raise) string<delimiter(")content(program killed by signal )inline<delimiter(#{)global_variable($?)delimiter(})>delimiter(")> reserved(if) operator(()global_variable($?) operator(&) integer(127)operator(\)) operator(!=) integer(0)
+
+ident(pid) operator(=) ident(fork) operator({)
+    ident(trap)operator(()string<delimiter(")content(SIGINT)delimiter(")>operator(,) string<delimiter(")content(IGNORE)delimiter(")>operator(\))
+    ident(exec)operator(()string<delimiter(")content(sleep)delimiter(")>operator(,) string<delimiter(")content(10)delimiter(")>operator(\))
+operator(})
+ident(trap) operator(()string<delimiter(")content(SIGINT)delimiter(")>operator(\)) operator({)
+    ident(puts) string<delimiter(")content(Tsk tsk, no process interruptus)delimiter(")>
+operator(})
+constant(Process)operator(.)ident(waitpid)operator(()ident(pid)operator(,) integer(0)operator(\))
+
+comment(# Ruby doesn't permit to lie to the program called by a 'system'.)
+comment(# (ie specify what return argv[0] in C, $0 in Perl/Ruby ...\))
+comment(# A (dirty\) way is to create a link (under Unix\), run this link and)
+comment(# erase it. Somebody has a best idea ?)
+
+
+comment(# @@PLEAC@@_16.3)
+ident(exec)operator(()string<delimiter(")content(archive *.data)delimiter(")>operator(\))
+
+ident(exec)operator(()string<delimiter(")content(archive)delimiter(")>operator(,) string<delimiter(")content(accounting.data)delimiter(")>operator(\))
+
+ident(exec)operator(()string<delimiter(")content(archive accounting.data)delimiter(")>operator(\))
+
+
+comment(# @@PLEAC@@_16.4)
+comment(# read the output of a program)
+constant(IO)operator(.)ident(popen)operator(()string<delimiter(")content(ls)delimiter(")>operator(\)) operator({)operator(|)ident(readme)operator(|)
+    reserved(while) ident(readme)operator(.)ident(gets) reserved(do)
+        comment(# ...)
+    reserved(end)
+operator(})
+comment(# or)
+ident(readme) operator(=) constant(IO)operator(.)ident(popen)operator(()string<delimiter(")content(ls)delimiter(")>operator(\))
+reserved(while) ident(readme)operator(.)ident(gets) reserved(do)
+    comment(# ...)
+reserved(end)
+ident(readme)operator(.)ident(close)
+
+comment(# "write" in a program)
+constant(IO)operator(.)ident(popen)operator(()string<delimiter(")content(cmd args)delimiter(")>operator(,)string<delimiter(")content(w)delimiter(")>operator(\)) operator({)operator(|)ident(pipe)operator(|)
+    ident(pipe)operator(.)ident(puts)operator(()string<delimiter(")content(data)delimiter(")>operator(\))
+    ident(pipe)operator(.)ident(puts)operator(()string<delimiter(")content(foo)delimiter(")>operator(\))
+operator(})
+
+comment(# close wait for the end of the process)
+ident(read) operator(=) constant(IO)operator(.)ident(popen)operator(()string<delimiter(")content(sleep 10000)delimiter(")>operator(\)) comment(# child goes to sleep)
+ident(read)operator(.)ident(close)                     comment(# and the parent goes to lala land)
+
+ident(writeme) operator(=) constant(IO)operator(.)ident(popen)operator(()string<delimiter(")content(cmd args)delimiter(")>operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+ident(writeme)operator(.)ident(puts) string<delimiter(")content(hello)delimiter(")> comment(# program will get hello\\n on STDIN)
+ident(writeme)operator(.)ident(close)        comment(# program will get EOF on STDIN)
+
+comment(# send in a pager (eg less\) all output)
+global_variable($stdout) operator(=) constant(IO)operator(.)ident(popen)operator(()string<delimiter(")content(/usr/bin/less)delimiter(")>operator(,)string<delimiter(")content(w)delimiter(")>operator(\))
+ident(print) string<delimiter(")content(huge string)char(\\n)delimiter(")> operator(*) integer(10000)
+
+
+comment(# @@PLEAC@@_16.5)
+comment(#-----------------------------)
+reserved(def) method(head)operator(()ident(lines) operator(=) integer(20)operator(\))
+    ident(pid) operator(=) ident(open)operator(()string<delimiter(")content(|-)delimiter(")>operator(,)string<delimiter(")content(w)delimiter(")>operator(\))
+    reserved(if) ident(pid) operator(==) pre_constant(nil)
+        reserved(return)
+    reserved(else)
+        reserved(while) ident(gets)operator(()operator(\)) reserved(do)
+            ident(pid)operator(.)ident(print)
+            ident(lines) operator(-=) integer(1)
+            reserved(break) reserved(if) ident(lines) operator(==) integer(0)
+        reserved(end)
+    reserved(end)
+    ident(exit)
+reserved(end)
+
+ident(head)operator(()integer(100)operator(\))
+reserved(while) ident(gets)operator(()operator(\)) reserved(do)
+    ident(print)
+reserved(end)
+comment(#-----------------------------)
+integer(1)operator(:) operator(>) constant(Welcome) ident(to) constant(Linux)operator(,) ident(version) float(2.0)operator(.)integer(33) ident(on) ident(a) ident(i686)
+
+integer(2)operator(:) operator(>) 
+
+integer(3)operator(:) operator(>)     string<delimiter(")content(The software required `Windows 95 or better', 
+
+4: >      so I installed Linux.)delimiter(")>  
+comment(#-----------------------------)
+operator(>) integer(1)operator(:) constant(Welcome) ident(to) constant(Linux)operator(,) constant(Kernel) ident(version) float(2.0)operator(.)integer(33) ident(on) ident(a) ident(i686)
+
+operator(>) integer(2)operator(:) 
+
+operator(>) integer(3)operator(:)     string<delimiter(")content(The software required `Windows 95 or better', 
+
+> 4:      so I installed Linux.)delimiter(")>  
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby)
+comment(# qnumcat - demo additive output filters)
+
+reserved(def) method(number)operator(()operator(\))
+    ident(pid) operator(=) ident(open)operator(()string<delimiter(")content(|-)delimiter(")>operator(,)string<delimiter(")content(w)delimiter(")>operator(\))
+    reserved(if) ident(pid) operator(==) pre_constant(nil)
+        reserved(return)
+    reserved(else)
+        reserved(while) ident(gets)operator(()operator(\)) reserved(do) ident(pid)operator(.)ident(printf)operator(()string<delimiter(")content(%d: %s)delimiter(")>operator(,) global_variable($.)operator(,) global_variable($_)operator(\))operator(;) reserved(end)
+    reserved(end)
+    ident(exit)
+reserved(end)
+
+reserved(def) method(quote)operator(()operator(\))
+    ident(pid) operator(=) ident(open)operator(()string<delimiter(")content(|-)delimiter(")>operator(,)string<delimiter(")content(w)delimiter(")>operator(\))
+    reserved(if) ident(pid) operator(==) pre_constant(nil)
+        reserved(return)
+    reserved(else)
+        reserved(while) ident(gets)operator(()operator(\)) reserved(do) ident(pid)operator(.)ident(print) string<delimiter(")content(> )inline<delimiter(#{)global_variable($_)delimiter(})>delimiter(")> reserved(end)
+    reserved(end)
+    ident(exit)
+reserved(end)
+
+ident(number)operator(()operator(\))
+ident(quote)operator(()operator(\))
+
+reserved(while) ident(gets)operator(()operator(\)) reserved(do)
+    ident(print)
+reserved(end)
+global_variable($stdout)operator(.)ident(close)
+ident(exit)
+
+
+comment(# @@PLEAC@@_16.6)
+pre_constant(ARGV)operator(.)ident(map!) operator({) operator(|)ident(arg)operator(|)
+    ident(arg) operator(=)operator(~) regexp<delimiter(/)char(\\.)content((gz|Z\)$)delimiter(/)> operator(?) string<delimiter(")content(|gzip -dc )inline<delimiter(#{)ident(arg)delimiter(})>delimiter(")> operator(:) ident(arg)
+operator(})
+reserved(for) ident(file) reserved(in) pre_constant(ARGV)
+    ident(fh) operator(=) ident(open)operator(()ident(file)operator(\))
+    reserved(while) ident(fh)operator(.)ident(gets)operator(()operator(\)) reserved(do)
+        comment(# .......)
+    reserved(end)
+reserved(end)
+comment(#-----------------------------)
+pre_constant(ARGV)operator(.)ident(map!) operator({) operator(|)ident(arg)operator(|)
+    ident(arg) operator(=)operator(~) regexp<delimiter(%r#)content(^)char(\\w)content(+://)delimiter(#)> operator(?) string<delimiter(")content(|GET )inline<delimiter(#{)ident(arg)delimiter(})>delimiter(")> operator(:) ident(arg)   comment(#)
+operator(})
+reserved(for) ident(file) reserved(in) pre_constant(ARGV)
+    ident(fh) operator(=) ident(open)operator(()ident(file)operator(\))
+    reserved(while) ident(fh)operator(.)ident(gets)operator(()operator(\)) reserved(do)
+        comment(# .......)
+    reserved(end)
+reserved(end)
+comment(#-----------------------------)
+ident(pwdinfo) operator(=) operator(()shell<delimiter(`)content(domainname)delimiter(`)> operator(=)operator(~) regexp<delimiter(/)content(^()char(\\()content(none)char(\\\))content(\)?$)delimiter(/)>operator(\)) operator(?) string<delimiter(')content(/etc/passwd)delimiter(')> operator(:) string<delimiter(')content(|ypcat  passwd)delimiter(')>operator(;)
+ident(pwd) operator(=) ident(open)operator(()ident(pwdinfo)operator(\))operator(;)
+comment(#-----------------------------)
+ident(puts) string<delimiter(")content(File, please? )delimiter(")>operator(;)
+ident(file) operator(=) ident(gets)operator(()operator(\))operator(.)ident(chomp)operator(()operator(\))operator(;)
+ident(fh) operator(=) ident(open)operator(()ident(file)operator(\))operator(;)
+
+
+comment(# @@PLEAC@@_16.7)
+ident(output) operator(=) shell<delimiter(`)content(cmd 2>&1)delimiter(`)>                            comment(# with backticks)
+comment(# or)
+ident(ph) operator(=) ident(open)operator(()string<delimiter(")content(|cmd 2>&1)delimiter(")>operator(\))                         comment(# with an open pipe)
+reserved(while) ident(ph)operator(.)ident(gets)operator(()operator(\)) operator({) operator(})                            comment(# plus a read)
+comment(#-----------------------------)
+ident(output) operator(=) shell<delimiter(`)content(cmd 2>/dev/null)delimiter(`)>                     comment(# with backticks)
+comment(# or)
+ident(ph) operator(=) ident(open)operator(()string<delimiter(")content(|cmd 2>/dev/null)delimiter(")>operator(\))                  comment(# with an open pipe)
+reserved(while) ident(ph)operator(.)ident(gets)operator(()operator(\)) operator({) operator(})                            comment(# plus a read)
+comment(#-----------------------------)
+ident(output) operator(=) shell<delimiter(`)content(cmd 2>&1 1>/dev/null)delimiter(`)>                comment(# with backticks)
+comment(# or)
+ident(ph) operator(=) ident(open)operator(()string<delimiter(")content(|cmd 2>&1 1>/dev/null)delimiter(")>operator(\))             comment(# with an open pipe)
+reserved(while) ident(ph)operator(.)ident(gets)operator(()operator(\)) operator({) operator(})                            comment(# plus a read)
+comment(#-----------------------------)
+ident(output) operator(=) shell<delimiter(`)content(cmd 3>&1 1>&2 2>&3 3>&-)delimiter(`)>             comment(# with backticks)
+comment(# or)
+ident(ph) operator(=) ident(open)operator(()string<delimiter(")content(|cmd 3>&1 1>&2 2>&3 3>&-)delimiter(")>operator(\))          comment(# with an open pipe)
+reserved(while) ident(ph)operator(.)ident(gets)operator(()operator(\)) operator({) operator(})                            comment(# plus a read)
+comment(#-----------------------------)
+ident(system)operator(()string<delimiter(")content(program args 1>/tmp/program.stdout 2>/tmp/program.stderr)delimiter(")>operator(\)) 
+comment(#-----------------------------)
+ident(output) operator(=) shell<delimiter(`)content(cmd 3>&1 1>&2 2>&3 3>&-)delimiter(`)>  
+comment(#-----------------------------)
+ident(fd3) operator(=) ident(fd1) 
+ident(fd1) operator(=) ident(fd2) 
+ident(fd2) operator(=) ident(fd3) 
+ident(fd3) operator(=) pre_constant(nil) 
+comment(#-----------------------------)
+ident(system)operator(()string<delimiter(")content(prog args 1>tmpfile 2>&1)delimiter(")>operator(\)) 
+ident(system)operator(()string<delimiter(")content(prog args 2>&1 1>tmpfile)delimiter(")>operator(\)) 
+comment(#-----------------------------)
+comment(# system ("prog args 1>tmpfile 2>&1"\) )
+ident(fd1) operator(=) string<delimiter(")content(tmpfile)delimiter(")>          comment(# change stdout destination first)
+ident(fd2) operator(=) ident(fd1)                comment(# now point stderr there, too)
+comment(#-----------------------------)
+comment(# system("prog args 2>&1 1>tmpfile"\) )
+ident(fd2) operator(=) ident(fd1)                comment(# stderr same destination as stdout)
+ident(fd1) operator(=) string<delimiter(")content(tmpfile)delimiter(")>          comment(# but change stdout destination )
+comment(#-----------------------------)
+comment(# It is often better not to rely on the shell, )
+comment(# because of portability, possible security problems )
+comment(# and bigger resource usage. So, it is often better to use the open3 library. )
+comment(# See below for an example.)
+comment(# opening stdin, stdout, stderr)
+ident(require) string<delimiter(")content(open3)delimiter(")>
+ident(stdin)operator(,) ident(stdout)operator(,) ident(stderr) operator(=) constant(Open3)operator(.)ident(popen)operator(()string<delimiter(')content(cmd)delimiter(')>operator(\))
+
+
+comment(# @@PLEAC@@_16.8)
+comment(#-----------------------------)
+comment(# Contrary to perl, we don't need to use a module in Ruby)
+ident(fh) operator(=) constant(Kernel)operator(.)ident(open)operator(()string<delimiter(")content(|)delimiter(")> operator(+) ident(program)operator(,) string<delimiter(")content(w+)delimiter(")>operator(\))
+ident(fh)operator(.)ident(puts) string<delimiter(")content(here's your input)char(\\n)delimiter(")>
+ident(output) operator(=) ident(fh)operator(.)ident(gets)operator(()operator(\))
+ident(fh)operator(.)ident(close)operator(()operator(\))
+comment(#-----------------------------)
+constant(Kernel)operator(.)ident(open)operator(()string<delimiter(")content(|program)delimiter(")>operator(\))operator(,)string<delimiter(")content(w+)delimiter(")>operator(\))    comment(# RIGHT !)
+comment(#-----------------------------)
+comment(# Ruby has already object methods for I/O handles)
+comment(#-----------------------------)
+reserved(begin)
+    ident(fh) operator(=) constant(Kernel)operator(.)ident(open)operator(()string<delimiter(")content(|)delimiter(")> operator(+) ident(program_and_options)operator(,) string<delimiter(")content(w+)delimiter(")>operator(\))
+reserved(rescue)
+    reserved(if) operator(()global_variable($@) operator(~=) regexp<delimiter(/)content(^open)delimiter(/)>operator(\))
+        global_variable($stderr)operator(.)ident(puts) string<delimiter(")content(open failed : )inline<delimiter(#{)global_variable($!)delimiter(})>content( )char(\\n)content( )inline<delimiter(#{)global_variable($@)delimiter(})>content( )char(\\n)delimiter(")>
+        reserved(break)
+    reserved(end)
+    ident(raise)      comment(# reraise unforseen exception)
+reserved(end)
+
+
+comment(# @@PLEAC@@_16.13)
+comment(#% kill -l)
+comment(#HUP INT QUIT ILL TRAP ABRT BUS FPE KILL USR1 SEGV USR2 PIPE)
+comment(#ALRM TERM CHLD CONT STOP TSTP TTIN TTOU URG XCPU XFSZ VTALRM)
+comment(#PROF WINCH POLL PWR)
+comment(#-----------------------------)
+comment(#% ruby -e 'puts Signal.list.keys.join(" "\)')
+comment(#PWR USR1 BUS USR2 TERM SEGV KILL POLL STOP SYS TRAP IOT HUP INT                                                                          #)
+comment(#WINCH XCPU TTIN CLD TSTP FPE IO TTOU PROF CHLD CONT PIPE ABRT)
+comment(#VTALRM QUIT ILL XFSZ URG ALRM)
+comment(#-----------------------------)
+comment(# After that, the perl script create an hash equivalent to Signal.list, )
+comment(# and an array. The array can be obtained by :)
+ident(signame) operator(=) operator([)operator(])
+constant(Signal)operator(.)ident(list)operator(.)ident(each) operator({) operator(|)ident(name)operator(,) ident(i)operator(|) ident(signame)operator([)ident(i)operator(]) operator(=) ident(name) operator(})
+
+
+comment(# @@PLEAC@@_16.14)
+constant(Process)operator(.)ident(kill)operator(()integer(9)operator(,) ident(pid)operator(\))                    comment(# send $pid a signal 9)
+constant(Process)operator(.)ident(kill)operator(()integer(-1)operator(,) constant(Process)operator(.)ident(getpgrp)operator(()operator(\))operator(\))     comment(# send whole job a signal 1)
+constant(Process)operator(.)ident(kill)operator(()string<delimiter(")content(USR1)delimiter(")>operator(,) global_variable($$)operator(\))                comment(# send myself a SIGUSR1)
+constant(Process)operator(.)ident(kill)operator(()string<delimiter(")content(HUP)delimiter(")>operator(,) ident(pid1)operator(,) ident(pid2)operator(,) ident(pid3)operator(\))   comment(# send a SIGHUP to processes in @pids)
+comment(#-----------------------------)
+reserved(begin)
+    constant(Process)operator(.)ident(kill)operator(()integer(0)operator(,) ident(minion)operator(\))
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(minion)delimiter(})>content( is alive!)delimiter(")>
+reserved(rescue) constant(Errno)operator(::)constant(EPERM)                     comment(# changed uid)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(minion)delimiter(})>content( has escaped my control!)delimiter(")>operator(;)
+reserved(rescue) constant(Errno)operator(::)constant(ESRCH)
+    ident(puts) string<delimiter(")inline<delimiter(#{)ident(minion)delimiter(})>content( is deceased.)delimiter(")>operator(;)      comment(# or zombied)
+reserved(rescue)
+    ident(puts) string<delimiter(")content(Odd; I couldn't check the status of )inline<delimiter(#{)ident(minion)delimiter(})>content( : )inline<delimiter(#{)global_variable($!)delimiter(})>delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_16.15)
+constant(Kernel)operator(.)ident(trap)operator(()string<delimiter(")content(QUIT)delimiter(")>operator(,) ident(got_sig_quit)operator(\))       comment(# got_sig_quit = Proc.new { puts "Quit\\n" })
+ident(trap)operator(()string<delimiter(")content(PIPE)delimiter(")>operator(,) string<delimiter(")content(got_sig_quit)delimiter(")>operator(\))            comment(# def got_sig_pipe ...)
+ident(trap)operator(()string<delimiter(")content(INT)delimiter(")>operator(\)) operator({) ident(ouch)operator(+)operator(+) operator(})                  comment(# increment ouch for every SIGINT)
+comment(#-----------------------------)
+ident(trap)operator(()string<delimiter(")content(INT)delimiter(")>operator(,) string<delimiter(")content(IGNORE)delimiter(")>operator(\))                   comment(# ignore the signal INT)
+comment(#-----------------------------)
+ident(trap)operator(()string<delimiter(")content(STOP)delimiter(")>operator(,) string<delimiter(")content(DEFAULT)delimiter(")>operator(\))                 comment(# restore default STOP signal handling)
+
+
+comment(# @@PLEAC@@_16.16)
+comment(# the signal handler)
+reserved(def) method(ding)
+    ident(trap)operator(()string<delimiter(")content(INT)delimiter(")>operator(,) string<delimiter(")content(ding)delimiter(")>operator(\))
+    ident(puts) string<delimiter(")char(\\a)content(Enter your name!)delimiter(")>
+reserved(end)
+
+comment(# prompt for name, overriding SIGINT)
+reserved(def) method(get_name)
+    ident(save) operator(=) ident(trap)operator(()string<delimiter(")content(INT)delimiter(")>operator(,) string<delimiter(")content(ding)delimiter(")>operator(\))
+
+    ident(puts) string<delimiter(")content(Kindly Stranger, please enter your name: )delimiter(")>
+    ident(name) operator(=) ident(gets)operator(()operator(\))operator(.)ident(chomp)operator(()operator(\))
+    ident(trap)operator(()string<delimiter(")content(INT)delimiter(")>operator(,) ident(save)operator(\))
+    ident(name)
+reserved(end)
+
+
+comment(# @@PLEAC@@_16.21)
+comment(# implemented thanks to http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/1760)
+ident(require) string<delimiter(')content(timeout)delimiter(')>
+
+comment(# we'll do something vastly more useful than cookbook to demonstrate timeouts)
+reserved(begin)
+    ident(timeout)operator(()integer(5)operator(\)) operator({)
+        ident(waitsec) operator(=) ident(rand)operator(()integer(10)operator(\))
+        ident(puts) string<delimiter(")content(Let's see if a sleep of )inline<delimiter(#{)ident(waitsec)delimiter(})>content( seconds is longer than 5 seconds...)delimiter(")>
+        ident(system)operator(()string<delimiter(")content(sleep )inline<delimiter(#{)ident(waitsec)delimiter(})>delimiter(")>operator(\))
+    operator(})
+    ident(puts) string<delimiter(")content(Timeout didn't occur)delimiter(")>
+reserved(rescue) constant(Timeout)operator(::)constant(Error)    
+    ident(puts) string<delimiter(")content(Timed out!)delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_17.1)
+comment(# A basic TCP client connection)
+ident(require) string<delimiter(')content(socket)delimiter(')>
+reserved(begin)
+    ident(t) operator(=) constant(TCPSocket)operator(.)ident(new)operator(()string<delimiter(')content(www.ruby-lang.org)delimiter(')>operator(,) string<delimiter(')content(www)delimiter(')>operator(\))
+reserved(rescue)
+    ident(puts) string<delimiter(")content(error: )inline<delimiter(#{)global_variable($!)delimiter(})>delimiter(")>
+reserved(else)
+    comment(# ... do something with the socket)
+    ident(t)operator(.)ident(print) string<delimiter(")content(GET / HTTP/1.0)char(\\n)char(\\n)delimiter(")>
+    ident(answer) operator(=) ident(t)operator(.)ident(gets)operator(()pre_constant(nil)operator(\))
+    comment(# and terminate the connection when we're done)
+    ident(t)operator(.)ident(close)
+reserved(end)
+
+comment(# Using the evil low level socket API)
+ident(require) string<delimiter(')content(socket)delimiter(')>
+comment(# create a socket)
+ident(s) operator(=) constant(Socket)operator(.)ident(new)operator(()constant(Socket)operator(::)constant(AF_INET)operator(,) constant(Socket)operator(::)constant(SOCK_STREAM)operator(,) integer(0)operator(\))
+comment(# build the address of the remote machine)
+ident(sockaddr_server) operator(=) operator([)constant(Socket)operator(::)constant(AF_INET)operator(,) integer(80)operator(,)
+    constant(Socket)operator(.)ident(gethostbyname)operator(()string<delimiter(')content(www.ruby-lang.org)delimiter(')>operator(\))operator([)integer(3)operator(])operator(,)
+    integer(0)operator(,) integer(0)operator(])operator(.)ident(pack)operator(()string<delimiter(")content(snA4NN)delimiter(")>operator(\))
+comment(# connect)
+reserved(begin)
+    ident(s)operator(.)ident(connect)operator(()ident(sockaddr_server)operator(\))
+reserved(rescue)
+    ident(puts) string<delimiter(")content(error: )inline<delimiter(#{)global_variable($!)delimiter(})>delimiter(")>
+reserved(else)
+    comment(# ... do something with the socket)
+    ident(s)operator(.)ident(print) string<delimiter(")content(GET / HTTP/1.0)char(\\n)char(\\n)delimiter(")>
+    comment(# and terminate the connection when we're done)
+    ident(s)operator(.)ident(close)
+reserved(end)
+
+comment(# TCP connection with management of error (DNS\))
+ident(require) string<delimiter(')content(socket)delimiter(')>
+reserved(begin)
+    ident(client) operator(=) constant(TCPSocket)operator(.)ident(new)operator(()string<delimiter(')content(does not exists)delimiter(')>operator(,) string<delimiter(')content(www)delimiter(')>operator(\))
+reserved(rescue)
+    ident(puts) string<delimiter(")content(error: )inline<delimiter(#{)global_variable($!)delimiter(})>delimiter(")>
+reserved(end)
+
+comment(# TCP connection with a time out)
+ident(require) string<delimiter(')content(socket)delimiter(')>
+ident(require) string<delimiter(')content(timeout)delimiter(')>
+reserved(begin)
+    ident(timeout)operator(()integer(1)operator(\)) reserved(do) comment(#the server has one second to answer)
+        ident(client) operator(=) constant(TCPSocket)operator(.)ident(new)operator(()string<delimiter(')content(www.host.com)delimiter(')>operator(,) string<delimiter(')content(www)delimiter(')>operator(\))
+    reserved(end)
+reserved(rescue)
+    ident(puts) string<delimiter(")content(error: )inline<delimiter(#{)global_variable($!)delimiter(})>delimiter(")>
+reserved(end)
+
+
+comment(# @@PLEAC@@_17.12)
+ident(require) string<delimiter(')content(socket)delimiter(')>
+
+reserved(class) class(Preforker) 
+    ident(attr_reader) operator(()symbol(:child_count)operator(\))
+    
+    reserved(def) method(initialize)operator(()ident(prefork)operator(,) ident(max_clients_per_child)operator(,) ident(port)operator(,) ident(client_handler)operator(\))
+        instance_variable(@prefork) operator(=) ident(prefork)
+        instance_variable(@max_clients_per_child) operator(=) ident(max_clients_per_child)
+        instance_variable(@port) operator(=) ident(port)
+        instance_variable(@child_count) operator(=) integer(0)
+        
+        instance_variable(@reaper) operator(=) ident(proc) operator({)
+            ident(trap)operator(()string<delimiter(')content(CHLD)delimiter(')>operator(,) instance_variable(@reaper)operator(\))
+            ident(pid) operator(=) constant(Process)operator(.)ident(wait)
+            instance_variable(@child_count) operator(-=) integer(1)
+        operator(})
+        
+        instance_variable(@huntsman) operator(=) ident(proc) operator({)
+            ident(trap)operator(()string<delimiter(')content(CHLD)delimiter(')>operator(,) string<delimiter(')content(IGNORE)delimiter(')>operator(\))
+            ident(trap)operator(()string<delimiter(')content(INT)delimiter(')>operator(,) string<delimiter(')content(IGNORE)delimiter(')>operator(\))
+            constant(Process)operator(.)ident(kill)operator(()string<delimiter(')content(INT)delimiter(')>operator(,) integer(0)operator(\))
+            ident(exit)
+        operator(})
+        
+        instance_variable(@client_handler)operator(=)ident(client_handler)
+    reserved(end)
+    
+    reserved(def) method(child_handler)
+        ident(trap)operator(()string<delimiter(')content(INT)delimiter(')>operator(,) string<delimiter(')content(EXIT)delimiter(')>operator(\))
+        instance_variable(@client_handler)operator(.)ident(setUp)
+        comment(# wish: sigprocmask UNblock SIGINT)
+        instance_variable(@max_clients_per_child)operator(.)ident(times) operator({)
+            ident(client) operator(=) instance_variable(@server)operator(.)ident(accept) reserved(or) reserved(break)
+            instance_variable(@client_handler)operator(.)ident(handle_request)operator(()ident(client)operator(\))
+            ident(client)operator(.)ident(close)
+        operator(})
+        instance_variable(@client_handler)operator(.)ident(tearDown)
+    reserved(end)
+    
+    reserved(def) method(make_new_child)
+        comment(# wish: sigprocmask block SIGINT)
+        instance_variable(@child_count) operator(+=) integer(1)
+        ident(pid) operator(=) ident(fork) reserved(do)
+            ident(child_handler)
+        reserved(end)
+        comment(# wish: sigprocmask UNblock SIGINT)
+    reserved(end)
+    
+    reserved(def) method(run)
+        instance_variable(@server) operator(=) constant(TCPserver)operator(.)ident(open)operator(()instance_variable(@port)operator(\))
+        ident(trap)operator(()string<delimiter(')content(CHLD)delimiter(')>operator(,) instance_variable(@reaper)operator(\))
+        ident(trap)operator(()string<delimiter(')content(INT)delimiter(')>operator(,) instance_variable(@huntsman)operator(\))
+        ident(loop) operator({)
+            operator(()instance_variable(@prefork) operator(-) instance_variable(@child_count)operator(\))operator(.)ident(times) operator({) operator(|)ident(i)operator(|)
+                ident(make_new_child)
+            operator(})
+            ident(sleep) operator(.)integer(1)
+        operator(})
+    reserved(end)
+reserved(end)
+
+comment(#-----------------------------)
+comment(#!/usr/bin/ruby)
+
+ident(require) string<delimiter(')content(Preforker)delimiter(')>
+
+reserved(class) class(ClientHandler)
+    reserved(def) method(setUp)
+    reserved(end)
+    
+    reserved(def) method(tearDown)
+    reserved(end)
+    
+    reserved(def) method(handle_request)operator(()ident(client)operator(\))
+        comment(# do stuff)
+    reserved(end)
+reserved(end)
+
+ident(server) operator(=) constant(Preforker)operator(.)ident(new)operator(()integer(1)operator(,) integer(100)operator(,) integer(3102)operator(,) constant(ClientHandler)operator(.)ident(new)operator(\))
+ident(server)operator(.)ident(run)
+
+
+comment(# @@PLEAC@@_18.2)
+ident(require) string<delimiter(')content(net/ftp)delimiter(')>
+
+reserved(begin)
+    ident(ftp) operator(=) constant(Net)operator(::)constant(FTP)operator(::)ident(new)operator(()string<delimiter(")content(ftp.host.com)delimiter(")>operator(\))
+    ident(ftp)operator(.)ident(login)operator(()ident(username)operator(,)ident(password)operator(\))
+    ident(ftp)operator(.)ident(chdir)operator(()ident(directory)operator(\))
+    ident(ftp)operator(.)ident(get)operator(()ident(filename)operator(\))
+    ident(ftp)operator(.)ident(put)operator(()ident(filename)operator(\))
+reserved(rescue) constant(Net)operator(::)constant(FTPError)
+    global_variable($stderr)operator(.)ident(print) string<delimiter(")content(FTP failed: )delimiter(")> operator(+) global_variable($!)
+reserved(ensure)
+    ident(ftp)operator(.)ident(close)operator(()operator(\)) reserved(if) ident(ftp)
+reserved(end)
+
+comment(# A better solution for a local use could be :)
+constant(Net)operator(::)constant(FTP)operator(::)ident(new)operator(()string<delimiter(")content(ftp.host.com)delimiter(")>operator(\)) reserved(do) operator(|)ident(ftp)operator(|)
+    ident(ftp)operator(.)ident(login)operator(()ident(username)operator(,)ident(password)operator(\))
+    ident(ftp)operator(.)ident(chdir)operator(()ident(directory)operator(\))
+    ident(ftp)operator(.)ident(get)operator(()ident(filename)operator(\))
+    ident(ftp)operator(.)ident(put)operator(()ident(filename)operator(\))
+reserved(end)
+
+comment(# If you have only one file to get, there is a simple solution :)
+ident(require) string<delimiter(')content(open-uri)delimiter(')>
+ident(open)operator(()string<delimiter(")content(ftp://www.ruby-lang.org/path/filename)delimiter(")>operator(\)) reserved(do) operator(|)ident(fh)operator(|)
+    comment(# read from filehandle fh)
+reserved(end) 
+comment(#--------------------------------------------)
+comment(# to wait a defined time for the connection, )
+comment(# use the timeout module)
+ident(require) string<delimiter(')content(timeout)delimiter(')>
+reserved(begin) 
+    ident(timeout)operator(()integer(30)operator(\))operator({)
+        ident(ftp) operator(=) constant(Net)operator(::)constant(FTP)operator(::)ident(new)operator(()string<delimiter(")content(ftp.host.com)delimiter(")>operator(\))
+        ident(ftp)operator(.)ident(debug_mode) operator(=) pre_constant(true)
+    operator(})
+reserved(rescue) constant(Net)operator(::)constant(FTPError)
+    global_variable($stderr)operator(.)ident(puts) string<delimiter(")content(Couldn't connect.)delimiter(")>
+reserved(rescue) constant(Timeout)operator(::)constant(Error)
+    global_variable($stderr)operator(.)ident(puts) string<delimiter(")content(Timeout while connecting to server.)delimiter(")>
+reserved(end)
+
+reserved(begin)
+    ident(ftp)operator(.)ident(login)operator(()operator(\))
+reserved(rescue) constant(Net)operator(::)constant(FTPError)
+    global_variable($stderr)operator(.)ident(print) string<delimiter(")content(Couldn't authentificate.)char(\\n)delimiter(")>
+reserved(end)
+
+reserved(begin)
+    ident(ftp)operator(.)ident(login)operator(()ident(username)operator(\))
+reserved(rescue) constant(Net)operator(::)constant(FTPError)
+    global_variable($stderr)operator(.)ident(print) string<delimiter(")content(Still couldn't authenticate.)char(\\n)delimiter(")>
+reserved(end)
+
+reserved(begin)
+    ident(ftp)operator(.)ident(login)operator(()ident(username)operator(,) ident(password)operator(\))
+reserved(rescue) constant(Net)operator(::)constant(FTPError)
+    global_variable($stderr)operator(.)ident(print) string<delimiter(")content(Couldn't authenticate, even with explicit
+    username and password.)char(\\n)delimiter(")>
+reserved(end)
+
+reserved(begin)
+    ident(ftp)operator(.)ident(login)operator(()ident(username)operator(,) ident(password)operator(,) ident(account)operator(\))
+reserved(rescue) constant(Net)operator(::)constant(FTPError)
+    global_variable($stderr)operator(.)ident(print) string<delimiter(")content(No dice. It hates me.)char(\\n)delimiter(")>
+reserved(end)
+comment(#-----------------------------)
+ident(ftp)operator(.)ident(put)operator(()ident(localfile)operator(,) ident(remotefile)operator(\))
+comment(#-----------------------------)
+comment(# Sending data from STDIN is not directly supported )
+comment(# by the ftp library module. A possible way to do it is to use the )
+comment(# storlines method directly to send raw commands to the ftp server.)
+comment(#-----------------------------)
+ident(ftp)operator(.)ident(get)operator(()ident(remotefile)operator(,) ident(localfile)operator(\))
+comment(#-----------------------------)
+ident(ftp)operator(.)ident(get)operator(()ident(remotefile)operator(\)) operator({) operator(|)ident(data)operator(|) ident(puts) ident(data) operator(})
+comment(#-----------------------------)
+ident(ftp)operator(.)ident(chdir)operator(()string<delimiter(")content(/pub/ruby)delimiter(")>operator(\)) 
+ident(print) string<delimiter(")content(I'm in the directory )delimiter(")>operator(,) ident(ftp)operator(.)ident(pwd)operator(()operator(\))operator(,) string<delimiter(")char(\\n)delimiter(")>
+comment(#-----------------------------)
+ident(ftp)operator(.)ident(mkdir)operator(()string<delimiter(")content(/pub/ruby/new_dir)delimiter(")>operator(\))
+comment(#-----------------------------)
+ident(lines) operator(=) ident(ftp)operator(.)ident(ls)operator(()string<delimiter(")content(/pub/ruby/)delimiter(")>operator(\))
+comment(# => ["drwxr-xr-x 2 matz users 4096 July 17 1998 1.0", ... ])
+
+ident(latest) operator(=) ident(ftp)operator(.)ident(dir)operator(()string<delimiter(")content(/pub/ruby/*.tgz)delimiter(")>operator(\))operator(.)ident(sort)operator(.)ident(last)
+
+ident(ftp)operator(.)ident(nlst)operator(()string<delimiter(")content(/pub/ruby)delimiter(")>operator(\))
+comment(# => ["/pub/ruby/1.0", ... ])
+comment(#-----------------------------)
+ident(ftp)operator(.)ident(quit)operator(()operator(\))
+
+
+comment(# @@PLEAC@@_18.6)
+ident(require) string<delimiter(')content(net/telnet)delimiter(')>
+ident(t) operator(=) constant(Net)operator(::)constant(Telnet)operator(::)ident(new)operator(() string<delimiter(")content(Timeout)delimiter(")> operator(=)operator(>) integer(10)operator(,)
+                      string<delimiter(")content(Prompt)delimiter(")>  operator(=)operator(>) regexp<delimiter(/)content(%)delimiter(/)>operator(,)
+                      string<delimiter(")content(Host)delimiter(")>    operator(=)operator(>) ident(host) operator(\))
+ident(t)operator(.)ident(login)operator(()ident(username)operator(,) ident(password)operator(\))
+ident(files) operator(=) ident(t)operator(.)ident(cmd)operator(()string<delimiter(")content(ls)delimiter(")>operator(\))
+ident(t)operator(.)ident(print)operator(()string<delimiter(")content(top)delimiter(")>operator(\))
+ident(process_string) operator(=) ident(t)operator(.)ident(waitfor)operator(()regexp<delimiter(/)char(\\d)content(+ processes)delimiter(/)>operator(\))
+ident(t)operator(.)ident(close)
+comment(#-----------------------------)
+regexp<delimiter(/)content([$%#>] )char(\\z)delimiter(/)modifier(n)>
+comment(#-----------------------------)
+comment(# In case of an error, the telnet module throws an exception.)
+comment(# For control of the behavior in case of an error,)
+comment(# you just need to catch the exceptions and do your custom)
+comment(# error handling.)
+comment(#-----------------------------)
+reserved(begin)
+    ident(telnet)operator(.)ident(login)operator(()ident(username)operator(,) ident(password)operator(\))
+reserved(rescue) constant(TimeoutError)
+    ident(fail) string<delimiter(")content(Login failed !)char(\\n)delimiter(")>
+reserved(end)
+comment(#-----------------------------)
+ident(telnet)operator(.)ident(waitfor)operator(()string<delimiter(')content(/--more--/)delimiter(')>operator(\))
+comment(#-----------------------------)
+ident(telnet)operator(.)ident(waitfor)operator(()constant(String) operator(=)operator(>) string<delimiter(')content(greasy smoke)delimiter(')>operator(,) constant(Timeout) operator(=)operator(>) integer(30)operator(\))
+
+
+comment(# @@PLEAC@@_18.7)
+ident(require) string<delimiter(')content(ping)delimiter(')>
+
+ident(puts) string<delimiter(")inline<delimiter(#{)ident(host)delimiter(})>content( is alive.)char(\\n)delimiter(")> reserved(if) constant(Ping)operator(.)ident(pingecho)operator(()ident(host)operator(\))operator(;)
+comment(#-----------------------------)
+comment(# the ping module only use TCP ping, not ICMP even if we are root)
+reserved(if) constant(Ping)operator(.)ident(pingecho)operator(()string<delimiter(")content(kingkong.com)delimiter(")>operator(\))
+    ident(puts) string<delimiter(")content(The giant ape lives!)char(\\n)delimiter(")>operator(;)
+reserved(else)
+    ident(puts) string<delimiter(")content(All hail mighty Gamera, friend of children!)char(\\n)delimiter(")>operator(;)
+reserved(end)
+
+
+comment(# @@PLEAC@@_19.0)
+comment(#-----------------------------)
+comment(# http://www.perl.com/CPAN/)
+comment(# http://www.perl.com:8001/bad/mojo.html)
+comment(# ftp://gatekeeper.dec.com/pub/misc/netlib.tar.Z)
+comment(# ftp://anonymous@myplace:gatekeeper.dec.com/pub/misc/netlib.tar.Z)
+comment(# file:///etc/motd)
+comment(#-----------------------------)
+comment(# http://mox.perl.com/cgi-bin/program?name=Johann&born=1685)
+comment(#-----------------------------)
+comment(# http://mox.perl.com/cgi-bin/program)
+comment(#-----------------------------)
+
+
+comment(# @@PLEAC@@_19.1)
+comment(#!/usr/local/bin/ruby -w)
+comment(# hiweb - load CGI class to decode information given by web server)
+
+ident(require) string<delimiter(')content(cgi)delimiter(')>
+
+ident(cgi) operator(=) constant(CGI)operator(.)ident(new)operator(()string<delimiter(')content(html3)delimiter(')>operator(\))
+
+comment(# get a parameter from a form)
+ident(value) operator(=) ident(cgi)operator(.)ident(params)operator([)string<delimiter(')content(PARAM_NAME)delimiter(')>operator(])operator([)integer(0)operator(])
+
+comment(# output a document)
+ident(cgi)operator(.)ident(out) operator({)
+    ident(cgi)operator(.)ident(html) operator({)
+        ident(cgi)operator(.)ident(head) operator({) ident(cgi)operator(.)ident(title) operator({) string<delimiter(")content(Howdy there!)delimiter(")> operator(}) operator(}) operator(+)
+            ident(cgi)operator(.)ident(body) operator({) ident(cgi)operator(.)ident(p) operator({) string<delimiter(")content(You typed: )delimiter(")> operator(+) ident(cgi)operator(.)ident(tt) operator({)
+                    constant(CGI)operator(.)ident(escapeHTML)operator(()ident(value)operator(\)) operator(}) operator(}) operator(})
+    operator(})
+operator(})
+
+ident(require) string<delimiter(')content(cgi)delimiter(')>
+ident(cgi) operator(=) constant(CGI)operator(.)ident(new)
+ident(who)   operator(=) ident(cgi)operator(.)ident(param)operator([)string<delimiter(")content(Name)delimiter(")>operator(])operator([)integer(0)operator(])     comment(# first param in list)
+ident(phone) operator(=) ident(cgi)operator(.)ident(param)operator([)string<delimiter(")content(Number)delimiter(")>operator(])operator([)integer(0)operator(])
+ident(picks) operator(=) ident(cgi)operator(.)ident(param)operator([)string<delimiter(")content(Choices)delimiter(")>operator(])     comment(# complete list)
+
+ident(print) ident(cgi)operator(.)ident(header)operator(() string<delimiter(')content(type)delimiter(')> operator(=)operator(>) string<delimiter(')content(text/plain)delimiter(')>operator(,)
+                  string<delimiter(')content(expires)delimiter(')> operator(=)operator(>) constant(Time)operator(.)ident(now) operator(+) operator(()integer(3) operator(*) integer(24) operator(*) integer(60) operator(*) integer(60)operator(\)) operator(\))
+
+
+comment(# @@PLEAC@@_19.3)
+comment(#!/usr/local/bin/ruby -w)
+comment(# webwhoami - show web user's id)
+ident(require) string<delimiter(')content(etc)delimiter(')>
+ident(print) string<delimiter(")content(Content-Type: text/plain)char(\\n)char(\\n)delimiter(")>
+ident(print) string<delimiter(")content(Running as )delimiter(")> operator(+) constant(Etc)operator(.)ident(getpwuid)operator(.)ident(name) operator(+) string<delimiter(")char(\\n)delimiter(")>
+
+comment(# % ruby -wc cgi-script     # just check syntax)
+
+comment(# % ruby -w  cgi-script     # params from stdin)
+comment(# (offline mode: enter name=value pairs on standard input\))
+comment(# name=joe)
+comment(# number=10)
+comment(# ^D)
+
+comment(# % ruby -w  cgi-script name=joe number=10     # run with mock form input)
+comment(# % ruby -d  cgi-script name=joe number=10     # ditto, under the debugger)
+
+comment(# POST method script in csh)
+comment(# % (setenv HTTP_METHOD POST; ruby -w cgi-script name=joe number=10\))
+comment(# POST method script in sh)
+comment(# % HTTP_METHOD=POST perl -w cgi-script name=joe number=10)
+
+
+comment(# @@PLEAC@@_19.4)
+comment(# ruby has several security levels, the level "1" is similar to perls taint mode.)
+comment(# It can be switched on by providing the -T command line parameter)
+comment(# or by setting $SAFE to 1. Setting $SAFE to 2,3 or 4 restricts possible)
+comment(# harmful operations further.)
+
+comment(#!/usr/bin/ruby -T)
+global_variable($SAFE) operator(=) integer(1)
+constant(File)operator(.)ident(open)operator(()pre_constant(ARGV)operator([)integer(0)operator(])operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+comment(# ruby warns with:)
+comment(# taint1.rb:2:in `initialize': Insecure operation - initialize (SecurityError\))
+
+global_variable($SAFE) operator(=) integer(1)
+ident(file) operator(=) pre_constant(ARGV)operator([)integer(0)operator(])
+reserved(unless) regexp<delimiter(/)content(^([)char(\\w)content(.-]+\)$)delimiter(/)>operator(.)ident(match)operator(()ident(file)operator(\))
+    ident(raise) string<delimiter(")content(filename )inline<delimiter(#{)ident(file)delimiter(})>content( has invalid characters)delimiter(")>
+reserved(end)
+ident(file) operator(=) global_variable($1)
+comment(# In ruby, even the back reference from a regular expression stays tainted.)
+comment(# you need to explicitly untaint the variable:)
+ident(file)operator(.)ident(untaint)
+constant(File)operator(.)ident(open)operator(()ident(file)operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+
+comment(# Race condition exists like in perl:)
+reserved(unless) constant(File)operator(.)ident(exists)operator(()ident(filename)operator(\))        comment(# Wrong because of race condition)
+    constant(File)operator(.)ident(open)operator(()ident(filename)operator(,) string<delimiter(")content(w)delimiter(")>operator(\))
+reserved(end)
+
+
+comment(# @@PLEAC@@_19.8)
+ident(url) operator(=) string<delimiter(")content(http://pleac.sourceforge.net/pleac_ruby/)delimiter(")>
+ident(print) string<delimiter(")content(Location: )inline<delimiter(#{)ident(url)delimiter(})>char(\\r)char(\\n)char(\\r)char(\\n)delimiter(")>
+ident(exit)
+
+comment(#!/usr/bin/ruby)
+ident(require) string<delimiter(')content(cgi)delimiter(')>
+
+ident(cgi) operator(=) constant(CGI)operator(.)ident(new)
+ident(oreo) operator(=) constant(CGI)operator(::)constant(Cookie)operator(.)ident(new)operator(()string<delimiter(')content(name)delimiter(')> operator(=)operator(>) string<delimiter(')content(filling)delimiter(')>operator(,)
+                       string<delimiter(')content(value)delimiter(')> operator(=)operator(>) string<delimiter(')content(vanilla creme)delimiter(')>operator(,)
+                       string<delimiter(')content(expires)delimiter(')> operator(=)operator(>) constant(Time)operator(.)ident(now) operator(+) operator(()integer(3) operator(*) integer(30) operator(*) integer(24) operator(*) integer(60) operator(*) integer(60)operator(\))operator(,)
+                       string<delimiter(')content(domain)delimiter(')> operator(=)operator(>) string<delimiter(')content(.pleac.sourceforge.net)delimiter(')>operator(\))
+
+ident(whither) operator(=) string<delimiter(')content(http://pleac.sourceforge.net/pleac_ruby/cgiprogramming.html)delimiter(')>
+
+ident(cgi)operator(.)ident(out)operator(()string<delimiter(')content(cookie)delimiter(')> operator(=)operator(>) ident(oreo)operator(,)
+        string<delimiter(')content(Location)delimiter(')> operator(=)operator(>) ident(whither)operator(\))operator({)string<delimiter(")delimiter(")>operator(})
+
+comment(#!/usr/bin/ruby)
+comment(# os_snipe - redirect to a Jargon File entry about current OS)
+ident(dir) operator(=) string<delimiter(')content(http://www.elsewhere.org/jargon/html/entry)delimiter(')>
+
+ident(agent) operator(=) constant(ENV)operator([)string<delimiter(')content(HTTP_USER_AGENT)delimiter(')>operator(])
+
+ident(page) operator(=) reserved(case)
+    reserved(when) ident(agent) operator(=)operator(~) regexp<delimiter(/)content(Mac)delimiter(/)>operator(:) string<delimiter(')content(Macintrash.html)delimiter(')>
+    reserved(when) ident(agent) operator(=)operator(~) regexp<delimiter(/)content(Win(dows \)?NT)delimiter(/)>operator(:) string<delimiter(')content(evil_and_rude.html)delimiter(')>
+    reserved(when) ident(agent) operator(=)operator(~) regexp<delimiter(/)content(Win|MSIE|WebTV)delimiter(/)>operator(:) string<delimiter(')content(Microsloth_Windows.html)delimiter(')>
+    reserved(when) ident(agent) operator(=)operator(~) regexp<delimiter(/)content(Linux)delimiter(/)>operator(:) string<delimiter(')content(Linux.html)delimiter(')>
+    reserved(when) ident(agent) operator(=)operator(~) regexp<delimiter(/)content(HP-UX)delimiter(/)>operator(:) string<delimiter(')content(HP-SUX.html)delimiter(')>
+    reserved(when) ident(agent) operator(=)operator(~) regexp<delimiter(/)content(SunOS)delimiter(/)>operator(:) string<delimiter(')content(ScumOS.html)delimiter(')>
+    reserved(else) string<delimiter(')content(Appendix_B.html)delimiter(')>
+reserved(end)
+
+ident(print) string<delimiter(")content(Location: )inline<delimiter(#{)ident(dir)delimiter(})>content(/)inline<delimiter(#{)ident(page)delimiter(})>char(\\n)char(\\n)delimiter(")>
+
+ident(require) string<delimiter(')content(cgi)delimiter(')>
+ident(cgi) operator(=) constant(CGI)operator(.)ident(new)
+ident(cgi)operator(.)ident(out)operator(()string<delimiter(')content(status)delimiter(')> operator(=)operator(>) string<delimiter(')content(204 No response)delimiter(')>operator(\))operator({)string<delimiter(")delimiter(")>operator(})
+comment(# this produces:)
+comment(# Status: 204 No response)
+comment(# Content-Type: text/html)
+comment(# Content-Length: 0)
+comment(# <blank line here>)
+
+
+comment(# @@PLEAC@@_19.10)
+ident(preference_value) operator(=) ident(cgi)operator(.)ident(cookies)operator([)string<delimiter(")content(preference name)delimiter(")>operator(])operator([)integer(0)operator(])
+
+ident(packed_cookie) operator(=) constant(CGI)operator(::)constant(Cookie)operator(.)ident(new)operator(()string<delimiter(")content(name)delimiter(")> operator(=)operator(>) string<delimiter(")content(preference name)delimiter(")>operator(,)
+                                string<delimiter(")content(value)delimiter(")> operator(=)operator(>) string<delimiter(")content(whatever you'd like)delimiter(")>operator(,)
+                                string<delimiter(")content(expires)delimiter(")> operator(=)operator(>) constant(Time)operator(.)ident(local)operator(()constant(Time)operator(.)ident(now)operator(.)ident(year) operator(+) integer(2)operator(,)
+    constant(Time)operator(.)ident(now)operator(.)ident(mon)operator(,) constant(Time)operator(.)ident(now)operator(.)ident(day)operator(,) constant(Time)operator(.)ident(now)operator(.)ident(hour)operator(,) constant(Time)operator(.)ident(now)operator(.)ident(min)operator(,) constant(Time)operator(.)ident(now)operator(.)ident(sec)operator(\)) operator(\))
+
+ident(cgi)operator(.)ident(header)operator(()string<delimiter(")content(cookie)delimiter(")> operator(=)operator(>) operator([)ident(packed_cookie)operator(])operator(\))
+
+comment(#!/usr/local/bin/ruby -w)
+comment(# ic_cookies - sample CGI script that uses a cookie)
+ident(require) string<delimiter(')content(cgi)delimiter(')>
+
+ident(cgi) operator(=) constant(CGI)operator(.)ident(new)operator(()string<delimiter(')content(html3)delimiter(')>operator(\))
+
+ident(cookname) operator(=) string<delimiter(")content(favorite ice cream)delimiter(")>
+ident(favorite) operator(=) ident(cgi)operator(.)ident(params)operator([)string<delimiter(")content(flavor)delimiter(")>operator(])operator([)integer(0)operator(])
+ident(tasty)    operator(=) ident(cgi)operator(.)ident(cookies)operator([)ident(cookname)operator(])operator([)integer(0)operator(]) operator(||) string<delimiter(')content(mint)delimiter(')>
+
+reserved(unless) ident(favorite)
+    ident(cgi)operator(.)ident(out) operator({)
+        ident(cgi)operator(.)ident(html) operator({)
+            ident(cgi)operator(.)ident(head) operator({) ident(cgi)operator(.)ident(title) operator({) string<delimiter(")content(Ice Cookies)delimiter(")> operator(}) operator(}) operator(+)
+            ident(cgi)operator(.)ident(body) operator({)
+                ident(cgi)operator(.)ident(h1) operator({) string<delimiter(")content(Hello Ice Cream)delimiter(")> operator(}) operator(+)
+                ident(cgi)operator(.)ident(hr) operator(+)
+                ident(cgi)operator(.)ident(form) operator({)
+                    ident(cgi)operator(.)ident(p) operator({) string<delimiter(")content(Please select a flavor: )delimiter(")> operator(+)
+                            ident(cgi)operator(.)ident(text_field)operator(()string<delimiter(")content(flavor)delimiter(")>operator(,) ident(tasty) operator(\)) operator(})
+                operator(}) operator(+)
+                ident(cgi)operator(.)ident(hr)
+            operator(})
+        operator(})
+    operator(})
+reserved(else)
+    ident(cookie) operator(=) constant(CGI)operator(::)constant(Cookie)operator(.)ident(new)operator(() string<delimiter(")content(name)delimiter(")>    operator(=)operator(>) ident(cookname)operator(,)
+                              string<delimiter(")content(value)delimiter(")>   operator(=)operator(>) ident(favorite)operator(,)
+                              string<delimiter(")content(expires)delimiter(")> operator(=)operator(>) constant(Time)operator(.)ident(local)operator(()constant(Time)operator(.)ident(now)operator(.)ident(year) operator(+) integer(2)operator(,)
+constant(Time)operator(.)ident(now)operator(.)ident(mon)operator(,) constant(Time)operator(.)ident(now)operator(.)ident(day)operator(,) constant(Time)operator(.)ident(now)operator(.)ident(hour)operator(,) constant(Time)operator(.)ident(now)operator(.)ident(min)operator(,) constant(Time)operator(.)ident(now)operator(.)ident(sec)operator(\)) operator(\))
+    ident(cgi)operator(.)ident(out)operator(()string<delimiter(")content(cookie)delimiter(")> operator(=)operator(>) operator([)ident(cookie)operator(])operator(\)) operator({)
+        ident(cgi)operator(.)ident(html) operator({)
+            ident(cgi)operator(.)ident(head) operator({) ident(cgi)operator(.)ident(title) operator({) string<delimiter(")content(Ice Cookies)delimiter(")> operator(}) operator(}) operator(+)
+            ident(cgi)operator(.)ident(body) operator({)
+                ident(cgi)operator(.)ident(h1) operator({) string<delimiter(")content(Hello Ice Cream)delimiter(")> operator(}) operator(+)
+                ident(cgi)operator(.)ident(p) operator({) string<delimiter(")content(You chose as your favorite flavor `)inline<delimiter(#{)ident(favorite)delimiter(})>content('.)delimiter(")> operator(})
+            operator(})
+        operator(})
+    operator(})
+reserved(end)
+
+
+comment(# @@PLEAC@@_20.9)
+reserved(def) method(templatefile)operator(()ident(filename)operator(,) ident(fillings)operator(\))
+    ident(aFile) operator(=) constant(File)operator(.)ident(new)operator(()ident(filename)operator(,) string<delimiter(")content(r)delimiter(")>operator(\))
+    ident(text) operator(=) ident(aFile)operator(.)ident(read)operator(()operator(\))
+    ident(aFile)operator(.)ident(close)operator(()operator(\))
+    ident(pattern) operator(=) constant(Regexp)operator(.)ident(new)operator(()string<delimiter(')content(%%(.*?\)%%)delimiter(')>operator(\))
+    ident(text)operator(.)ident(gsub!)operator(()ident(pattern)operator(\)) operator({)
+        ident(fillings)operator([)global_variable($1)operator(]) operator(||) string<delimiter(")delimiter(")>
+    operator(})
+    ident(text)
+reserved(end)
+
+ident(fields) operator(=) operator({)
+    string<delimiter(')content(username)delimiter(')> operator(=)operator(>) ident(whats_his_name)operator(,)
+    string<delimiter(')content(count)delimiter(')> operator(=)operator(>) ident(login_count)operator(,)
+    string<delimiter(')content(total)delimiter(')> operator(=)operator(>) ident(minutes_used)
+operator(})
+ident(puts) ident(templatefile)operator(()string<delimiter(')content(simple.template)delimiter(')>operator(,) ident(fields)operator(\))
+
+comment(# @@INCOMPLETE@@)
+comment(# An example using databases is missing)
+
+
diff --git a/test/scanners/ruby/quotes.in.rb b/test/scanners/ruby/quotes.in.rb
new file mode 100644
index 0000000..8c38e1f
--- /dev/null
+++ b/test/scanners/ruby/quotes.in.rb
@@ -0,0 +1,3 @@
+puts %}#{%}b#{%}r}*5}}*7}, immer wieder\n}*5
+
+print "test\n\\\\".gsub(/[\n\\]/, '\\\\\&')
diff --git a/test/scanners/ruby/quotes.out.raydebug b/test/scanners/ruby/quotes.out.raydebug
new file mode 100644
index 0000000..61fff05
--- /dev/null
+++ b/test/scanners/ruby/quotes.out.raydebug
@@ -0,0 +1,3 @@
+ident(puts) string<delimiter(%})inline<delimiter(#{)string<delimiter(%})content(b)inline<delimiter(#{)string<delimiter(%})content(r)delimiter(})>operator(*)integer(5)delimiter(})>delimiter(})>operator(*)integer(7)delimiter(})>content(, immer wieder)char(\\n)delimiter(})>operator(*)integer(5)
+
+ident(print) string<delimiter(")content(test)char(\\n)char(\\\\)char(\\\\)delimiter(")>operator(.)ident(gsub)operator(()regexp<delimiter(/)content([)char(\\n)char(\\\\)content(])delimiter(/)>operator(,) string<delimiter(')char(\\\\)char(\\\\)content(\\&)delimiter(')>operator(\))
diff --git a/test/scanners/ruby/sidebarize.in.rb b/test/scanners/ruby/sidebarize.in.rb
new file mode 100644
index 0000000..6cb9e22
--- /dev/null
+++ b/test/scanners/ruby/sidebarize.in.rb
@@ -0,0 +1,145 @@
+#!/usr/bin/env ruby
+# Sidebarize is a quite simple converter, like a lot others.
+# But in one way Sidebarize is special: it converts
+# feeds into HTML-pages suitable for sidebars in Gecko-browsers.
+
+# import support for all kinds of feeds
+require 'rss/0.9'
+require 'rss/1.0'
+require 'rss/2.0'
+# import support for encodings
+require 'iconv'
+# import support for CGI
+require 'cgi'
+# import support for getting files from URLs
+require 'net/http'
+require 'uri'
+
+Version = '0.0.9'
+
+Header = %q(<!DOCTYPE html PUBLIC 
+	"-//W3C//DTD XHTML 1.0 Strict//EN"
+	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>%s Sidebar</title>
+        <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+        <link rel="stylesheet" type="text/css" href="sidebarize.css" />
+    </head>
+
+    <body>
+        <p>%s</p>)
+
+Footer = %q(        <p>
+            <img src="fourpiece32.png" width="32" height="32" class="logo" />
+            generated by Sidebarize %s
+        </p>
+    </body>
+</html>)
+
+Entry = %q(        <div>
+            <img src="arrow.png" width="6" height="11" />
+            <a href="%s">%s</a>
+        </div>)
+
+class FeedConverter
+    def initialize
+        @xml_source = ''
+        @feed_data = []
+        @feed_version = ''
+        @feed_description = ''
+    end
+    
+    def from_file(filename)
+        f = File::open(filename)
+        @xml_source = f.read
+        f.close
+    end
+    
+    def from_url(url)
+        @xml_source = Net::HTTP.get(URI.parse(url))
+    end
+    
+    def parse
+        feed = RSS::Parser.parse(@xml_source)
+        @feed_description = feed.channel.description
+        @feed_name = feed.channel.title
+        
+    
+        feed.items.each do |item|
+            item_data = {}
+            item_data['title'] = item.title
+            item_data['link'] = item.link
+            @feed_data << item_data
+        end
+    end
+    
+    # Output HTML from the internal data structure
+    def to_html
+        # header
+        puts Header % [convert_entity(@feed_name), convert_entity(@feed_description)]
+        
+        # the entries
+        @feed_data.each do |item|
+            puts Entry % [item['link'], convert_entity(item['title'])]
+        end
+    
+        # footer
+        print Footer % Version
+    end
+end
+
+# Converts entities
+# uses code by murphy extended with iconv conversion
+def convert_entity(text)
+    text = Iconv.new('iso-8859-15', 'utf-8').iconv(text) 
+    
+    feed = text.inspect[1...-1]
+
+    feed.gsub!(/\\([0-7]+)|(.)/m) do
+        if $2
+            $&
+        else
+            '&#%s;' % $1.to_i(8).to_s(10)
+        end
+    end
+    
+    feed.gsub!('\"', '&quot;')
+
+    return feed
+end
+
+# Starter
+def main
+    fc = FeedConverter.new
+    cgi = CGI.new
+    if cgi.has_key? 'url'
+        # yeah, the user pointed us to an URL
+        fc.from_url(cgi['url'])
+        #fc.from_file('sd.xml')
+        #fc.from_file('sbarize_design.html')
+        
+        begin
+            # try to parse it and to generate HTML
+            fc.parse
+            
+            puts 'Content-Type: text/html'
+            puts
+            fc.to_html
+        rescue
+            # parsing failed so show an error message
+            puts 'Content-Type: text/html'
+            puts
+            puts Header % ['No', 'The specified feed is not valid.']
+            puts Footer % Version
+        end
+    else
+        # no, we've got no URL, generate error message
+        puts 'Content-Type: text/plain'
+        puts
+        puts Header % ['No', 'You have to set the url=http://domain.tld/path/feed.xml to your feed.']
+        puts Footer % Version
+    end
+end
+
+main if __FILE__ == $0
+\ No newline at end of file
diff --git a/test/scanners/ruby/sidebarize.out.raydebug b/test/scanners/ruby/sidebarize.out.raydebug
new file mode 100644
index 0000000..fb7e255
--- /dev/null
+++ b/test/scanners/ruby/sidebarize.out.raydebug
@@ -0,0 +1,145 @@
+comment(#!/usr/bin/env ruby)
+comment(# Sidebarize is a quite simple converter, like a lot others.)
+comment(# But in one way Sidebarize is special: it converts)
+comment(# feeds into HTML-pages suitable for sidebars in Gecko-browsers.)
+
+comment(# import support for all kinds of feeds)
+ident(require) string<delimiter(')content(rss/0.9)delimiter(')>
+ident(require) string<delimiter(')content(rss/1.0)delimiter(')>
+ident(require) string<delimiter(')content(rss/2.0)delimiter(')>
+comment(# import support for encodings)
+ident(require) string<delimiter(')content(iconv)delimiter(')>
+comment(# import support for CGI)
+ident(require) string<delimiter(')content(cgi)delimiter(')>
+comment(# import support for getting files from URLs)
+ident(require) string<delimiter(')content(net/http)delimiter(')>
+ident(require) string<delimiter(')content(uri)delimiter(')>
+
+constant(Version) operator(=) string<delimiter(')content(0.0.9)delimiter(')>
+
+constant(Header) operator(=) string<delimiter(%q()content(<!DOCTYPE html PUBLIC 
+	"-//W3C//DTD XHTML 1.0 Strict//EN"
+	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>%s Sidebar</title>
+        <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+        <link rel="stylesheet" type="text/css" href="sidebarize.css" />
+    </head>
+
+    <body>
+        <p>%s</p>)delimiter(\))>
+
+constant(Footer) operator(=) string<delimiter(%q()content(        <p>
+            <img src="fourpiece32.png" width="32" height="32" class="logo" />
+            generated by Sidebarize %s
+        </p>
+    </body>
+</html>)delimiter(\))>
+
+constant(Entry) operator(=) string<delimiter(%q()content(        <div>
+            <img src="arrow.png" width="6" height="11" />
+            <a href="%s">%s</a>
+        </div>)delimiter(\))>
+
+reserved(class) class(FeedConverter)
+    reserved(def) method(initialize)
+        instance_variable(@xml_source) operator(=) string<delimiter(')delimiter(')>
+        instance_variable(@feed_data) operator(=) operator([)operator(])
+        instance_variable(@feed_version) operator(=) string<delimiter(')delimiter(')>
+        instance_variable(@feed_description) operator(=) string<delimiter(')delimiter(')>
+    reserved(end)
+    
+    reserved(def) method(from_file)operator(()ident(filename)operator(\))
+        ident(f) operator(=) constant(File)operator(::)ident(open)operator(()ident(filename)operator(\))
+        instance_variable(@xml_source) operator(=) ident(f)operator(.)ident(read)
+        ident(f)operator(.)ident(close)
+    reserved(end)
+    
+    reserved(def) method(from_url)operator(()ident(url)operator(\))
+        instance_variable(@xml_source) operator(=) constant(Net)operator(::)constant(HTTP)operator(.)ident(get)operator(()constant(URI)operator(.)ident(parse)operator(()ident(url)operator(\))operator(\))
+    reserved(end)
+    
+    reserved(def) method(parse)
+        ident(feed) operator(=) constant(RSS)operator(::)constant(Parser)operator(.)ident(parse)operator(()instance_variable(@xml_source)operator(\))
+        instance_variable(@feed_description) operator(=) ident(feed)operator(.)ident(channel)operator(.)ident(description)
+        instance_variable(@feed_name) operator(=) ident(feed)operator(.)ident(channel)operator(.)ident(title)
+        
+    
+        ident(feed)operator(.)ident(items)operator(.)ident(each) reserved(do) operator(|)ident(item)operator(|)
+            ident(item_data) operator(=) operator({)operator(})
+            ident(item_data)operator([)string<delimiter(')content(title)delimiter(')>operator(]) operator(=) ident(item)operator(.)ident(title)
+            ident(item_data)operator([)string<delimiter(')content(link)delimiter(')>operator(]) operator(=) ident(item)operator(.)ident(link)
+            instance_variable(@feed_data) operator(<<) ident(item_data)
+        reserved(end)
+    reserved(end)
+    
+    comment(# Output HTML from the internal data structure)
+    reserved(def) method(to_html)
+        comment(# header)
+        ident(puts) constant(Header) operator(%) operator([)ident(convert_entity)operator(()instance_variable(@feed_name)operator(\))operator(,) ident(convert_entity)operator(()instance_variable(@feed_description)operator(\))operator(])
+        
+        comment(# the entries)
+        instance_variable(@feed_data)operator(.)ident(each) reserved(do) operator(|)ident(item)operator(|)
+            ident(puts) constant(Entry) operator(%) operator([)ident(item)operator([)string<delimiter(')content(link)delimiter(')>operator(])operator(,) ident(convert_entity)operator(()ident(item)operator([)string<delimiter(')content(title)delimiter(')>operator(])operator(\))operator(])
+        reserved(end)
+    
+        comment(# footer)
+        ident(print) constant(Footer) operator(%) constant(Version)
+    reserved(end)
+reserved(end)
+
+comment(# Converts entities)
+comment(# uses code by murphy extended with iconv conversion)
+reserved(def) method(convert_entity)operator(()ident(text)operator(\))
+    ident(text) operator(=) constant(Iconv)operator(.)ident(new)operator(()string<delimiter(')content(iso-8859-15)delimiter(')>operator(,) string<delimiter(')content(utf-8)delimiter(')>operator(\))operator(.)ident(iconv)operator(()ident(text)operator(\)) 
+    
+    ident(feed) operator(=) ident(text)operator(.)ident(inspect)operator([)integer(1)operator(...)integer(-1)operator(])
+
+    ident(feed)operator(.)ident(gsub!)operator(()regexp<delimiter(/)char(\\\\)content(([0-7]+\)|(.\))delimiter(/)modifier(m)>operator(\)) reserved(do)
+        reserved(if) global_variable($2)
+            global_variable($&)
+        reserved(else)
+            string<delimiter(')content(&#%s;)delimiter(')> operator(%) global_variable($1)operator(.)ident(to_i)operator(()integer(8)operator(\))operator(.)ident(to_s)operator(()integer(10)operator(\))
+        reserved(end)
+    reserved(end)
+    
+    ident(feed)operator(.)ident(gsub!)operator(()string<delimiter(')content(\\")delimiter(')>operator(,) string<delimiter(')content(&quot;)delimiter(')>operator(\))
+
+    reserved(return) ident(feed)
+reserved(end)
+
+comment(# Starter)
+reserved(def) method(main)
+    ident(fc) operator(=) constant(FeedConverter)operator(.)ident(new)
+    ident(cgi) operator(=) constant(CGI)operator(.)ident(new)
+    reserved(if) ident(cgi)operator(.)ident(has_key?) string<delimiter(')content(url)delimiter(')>
+        comment(# yeah, the user pointed us to an URL)
+        ident(fc)operator(.)ident(from_url)operator(()ident(cgi)operator([)string<delimiter(')content(url)delimiter(')>operator(])operator(\))
+        comment(#fc.from_file('sd.xml'\))
+        comment(#fc.from_file('sbarize_design.html'\))
+        
+        reserved(begin)
+            comment(# try to parse it and to generate HTML)
+            ident(fc)operator(.)ident(parse)
+            
+            ident(puts) string<delimiter(')content(Content-Type: text/html)delimiter(')>
+            ident(puts)
+            ident(fc)operator(.)ident(to_html)
+        reserved(rescue)
+            comment(# parsing failed so show an error message)
+            ident(puts) string<delimiter(')content(Content-Type: text/html)delimiter(')>
+            ident(puts)
+            ident(puts) constant(Header) operator(%) operator([)string<delimiter(')content(No)delimiter(')>operator(,) string<delimiter(')content(The specified feed is not valid.)delimiter(')>operator(])
+            ident(puts) constant(Footer) operator(%) constant(Version)
+        reserved(end)
+    reserved(else)
+        comment(# no, we've got no URL, generate error message)
+        ident(puts) string<delimiter(')content(Content-Type: text/plain)delimiter(')>
+        ident(puts)
+        ident(puts) constant(Header) operator(%) operator([)string<delimiter(')content(No)delimiter(')>operator(,) string<delimiter(')content(You have to set the url=http://domain.tld/path/feed.xml to your feed.)delimiter(')>operator(])
+        ident(puts) constant(Footer) operator(%) constant(Version)
+    reserved(end)
+reserved(end)
+
+ident(main) reserved(if) pre_constant(__FILE__) operator(==) global_variable($0)
+\ No newline at end of file
diff --git a/test/scanners/ruby/simple.in.rb b/test/scanners/ruby/simple.in.rb
new file mode 100644
index 0000000..3f5e390
--- /dev/null
+++ b/test/scanners/ruby/simple.in.rb
@@ -0,0 +1,2 @@
+puts "Hello, World!"
+p 2 * 19
diff --git a/test/scanners/ruby/simple.out.raydebug b/test/scanners/ruby/simple.out.raydebug
new file mode 100644
index 0000000..b423e9f
--- /dev/null
+++ b/test/scanners/ruby/simple.out.raydebug
@@ -0,0 +1,2 @@
+ident(puts) string<delimiter(")content(Hello, World!)delimiter(")>
+ident(p) integer(2) operator(*) integer(19)
diff --git a/test/scanners/ruby/strange.in.rb b/test/scanners/ruby/strange.in.rb
new file mode 100644
index 0000000..8369aaa
--- /dev/null
+++ b/test/scanners/ruby/strange.in.rb
@@ -0,0 +1,341 @@
+a.each{|el|anz[el]=anz[el]?anz[el]+1:1}
+while x<10000
+#a bis f dienen dazu die Nachbarschaft festzulegen. Man stelle sich die #Zahl von 1 bis 64 im Bin�rcode vor 1 bedeutet an 0 aus
+  b=(p[x]%32)/16<1 ? 0 : 1
+
+  (x-102>=0? n[x-102].to_i : 0)*a+(x-101>=0?n[x-101].to_i : 0)*e+n[x-100].to_i+(x-99>=0? n[x-99].to_i : 0)*f+(x-98>=0? n[x-98].to_i : 0)*a+
+  n[x+199].to_i*b+n[x+200].to_i*d+n[x+201].to_i*b
+
+#und die Ausgabe folgt
+g=%w{}
+x=0
+
+=begin
+class Hello
+  @hi   #class-instance-variable
+  self <<class
+    attr_accessor :hi
+  end
+end
+=end
+
+while x<100
+ puts"#{g[x]}"
+ x+=1
+end
+
+puts""
+sleep(10)
+
+1E1E1
+puts 30.send(:/, 5) # prints 6
+
+"instance variables can be #@included, #@@class_variables\n and #$globals as well."
+`instance variables can be #@included, #@@class_variables\n and #$globals as well.`
+'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+/instance variables can be #@included, #@@class_variables\n and #$globals as well./mousenix
+:"instance variables can be #@included, #@@class_variables\n and #$globals as well."
+:'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+%'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+%q'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+%Q'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+%w'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+%W'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+%s'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+%r'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+%x'instance variables can be #@included, #@@class_variables\n and #$globals as well.'
+
+#%W[ but #@0illegal_values look strange.]
+
+%Quark dazu
+
+% abc   # FIXME
+
+%s#ruby allows strange#{constructs}
+%s#ruby allows strange#$constructs
+%s#ruby allows strange#@@constructs
+
+%r\VERY STRANGE!\x00
+%x\VERY STRANGE!\x00
+
+~%r#<XMP>#i .. ~%r#</XMP>#i;
+
+a = <<"EOF"
+This is a multiline #$here document
+terminated by EOF on a line by itself
+EOF
+
+a = <<'EOF'
+This is a multiline #$here document
+terminated by EOF on a line by itself
+EOF
+
+b=(p[x] %32)/16<1 ? 0 : 1
+
+#<<""
+<<"X"
+#{test}
+#@bla
+#die suppe!!!
+\xfffff
+
+
+super <<-EOE % [
+			EOE
+
+<<X
+X
+X
+%s(uninter\)pre\ted)
+%q(uninter\)pre\ted)
+%Q(inter\)pre\ted)
+:"inter\)pre\ted"
+:'uninter\'pre\ted'
+
+%q[haha! [nesting [rocks] ] ! ]
+
+%Q[hehe! #{ %Q]nesting #{"really"} rocks] } ! ]
+
+"but it #{<<may} break"
+the code.
+may
+
+# this is a known bug.
+p <<this
+but it may break #{<<that}
+code.
+that
+this
+that
+
+##################################################################
+class                                                  NP
+def  initialize a=@p=[], b=@b=[];                      end
+def +@;@b<<1;b2c end;def-@;@b<<0;b2c                   end
+def  b2c;if @b.size==8;c=0;@b.each{|b|c<<=1;c|=b};send(
+     'lave'.reverse,(@p.join))if c==0;@p<<c.chr;@b=[] end
+     self end end ; begin _ = NP.new                   end
+c
+# ^ This is a bug :(
+
+# The Programming Language `NegaPosi'
++-+--++----+--+-+++--+-------+--++--+++---+-+++-+-+-+++-----+++-_
++--++++--+---++-+-+-+++--+--+-+------+--++++-++---++-++---++-++-_
++++--++-+-+--++--+++--+------+----+--++--+++-++-+----++------+--_
+-+-+----+++--+--+----+--+--+-++-++--+++-++++-++-----+-+-+----++-_
+---------+-+----                                                _
+##################################################################
+
+
+# date: 03/18/2004
+# title: primes less than 1000 ( 2005 Obfuscated Ruby Contest )
+# author: Jim Lawless
+# email: jimbo at radiks dotski net
+# comments: This program will display all positive prime integers
+#           less than 1000.  Program licens is the same as the Ruby
+#           license ( http://www.ruby-lang.org/en/LICENSE.txt )
+
+   $e=""
+
+def a()
+   $a=$a+1
+end
+
+def b()
+   $a=$a+5
+end
+
+def c()
+   $e=$e+$a.chr
+end
+
+def d()
+   $a=10
+end
+
+def e()
+   $a=$a+16
+end
+
+d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;a;c;d;e;e;e;a;a;a;c;d;e;e;b;b;
+a;c;d;c;d;e;e;e;e;e;e;b;b;a;a;a;c;d;e;e;e;e;e;b;b;a;a;a;a;c;d;e;e;e;e;
+e;b;b;a;a;a;a;a;c;d;e;e;e;e;e;e;a;a;c;d;e;e;e;e;e;b;b;a;c;d;e;b;a;c;
+d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;a;c;d;e;e;e;a;a;c;d;e;e;b;a;a;
+c;d;e;e;b;a;c;d;e;e;b;a;c;d;e;e;b;a;c;d;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;b;
+b;a;a;a;a;a;c;d;e;e;e;a;a;a;c;d;e;e;b;a;a;a;c;d;c;d;e;b;a;a;a;a;a;c;d;e;
+e;e;e;e;b;b;a;a;c;d;e;e;e;e;e;e;a;a;a;a;a;c;d;e;e;e;e;e;e;b;b;a;c;
+d;e;e;e;e;e;e;a;a;a;a;c;d;e;e;e;e;e;b;a;a;a;a;a;c;d;e;e;e;a;a;a;c;d;e;
+e;b;a;c;d;c;d;e;e;e;e;e;e;b;b;a;a;a;c;d;e;e;e;e;e;b;b;a;a;a;a;c;d;e;e;
+e;e;e;b;b;a;a;a;a;a;c;d;e;e;e;e;e;e;a;a;c;d;e;e;e;e;e;b;b;a;c;d;e;b;
+a;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;b;b;a;a;a;a;a;c;d;e;e;e;a;a;c;d;e;b;
+a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;a;c;d;e;b;a;c;d;c;d;e;e;e;e;e;b;b;a;
+a;a;a;a;c;d;e;e;e;e;e;b;b;a;a;c;d;e;b;b;a;a;a;a;c;d;e;b;a;c;d;e;b;b;a;
+a;a;a;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;a;c;d;e;e;a;a;a;a;c;
+d;e;e;e;e;e;e;a;a;a;c;d;e;e;e;e;e;e;a;a;a;a;a;c;d;e;e;e;e;e;b;a;a;a;
+a;a;c;d;e;e;e;e;e;e;b;b;a;c;d;e;e;e;e;e;e;a;a;c;d;e;e;e;e;e;e;a;a;a;
+a;a;c;d;e;b;b;a;a;a;a;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;b;b;a;a;a;a;a;
+c;d;e;b;b;a;a;a;a;a;c;d;e;b;b;a;a;a;a;a;c;d;e;e;e;a;a;a;c;d;e;e;e;a;a;
+a;c;d;e;e;b;a;c;d;e;b;b;a;a;a;a;a;c;d;e;b;a;c;d;c;d;e;b;a;a;a;a;a;c;d;e;e;
+e;e;e;b;b;a;a;c;d;e;e;e;e;e;e;a;a;a;a;a;c;d;e;e;e;e;e;e;b;b;a;c;d;e;
+e;e;e;e;e;a;a;a;a;c;d;e;e;e;e;e;b;a;a;a;a;a;c;d;e;e;e;a;a;a;c;d;e;e;
+b;a;a;c;d;c;d;e;e;e;e;e;b;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;c;d;e;e;e;e;e;
+b;b;a;c;d;e;e;e;e;e;b;a;a;c;d;e;e;e;e;e;e;a;c;d;c;d;e;e;e;e;e;b;b;a;c;
+d;e;e;e;e;e;e;a;a;a;a;c;d;e;e;e;e;e;b;a;a;a;a;a;c;d;c;d;e;b;a;a;a;a;a;
+c;d;e;e;e;e;e;b;b;a;a;a;a;a;c;d;e;e;e;a;a;a;c;d;e;b;a;a;a;a;a;c;d;e;e;
+e;e;e;b;b;a;a;a;a;a;c;d;e;e;a;c;d;e;e;b;a;a;c;d;c;d;e;e;e;e;e;b;b;a;a;
+a;a;a;c;d;e;e;e;e;e;b;b;a;a;c;d;e;b;a;c;d;e;b;b;a;a;a;a;c;d;e;b;b;a;a;
+a;a;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;b;b;a;a;a;a;a;c;d;e;b;b;b;a;c;d;e;
+b;a;a;a;a;a;c;d;e;e;e;e;e;b;b;a;a;a;a;a;c;d;e;b;b;a;a;a;a;a;c;d;e;e;
+e;a;a;a;a;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;a;c;d;e;b;b;a;a;
+a;a;a;c;d;c;d;e;e;e;e;e;b;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;c;d;e;e;e;e;e;
+b;b;a;c;d;e;e;e;e;e;b;a;a;c;d;e;e;e;e;e;e;a;c;d;c;d;e;e;e;e;e;b;b;a;c;
+d;e;e;e;e;e;e;a;a;a;a;c;d;e;e;e;e;e;b;a;a;a;a;a;c;d;c;d;e;e;e;e;e;b;b;
+a;c;d;e;e;e;e;e;e;a;a;a;a;c;d;e;e;e;e;e;b;a;a;a;a;a;c;d;c;d;e;e;e;e;e;
+b;b;a;a;a;a;a;c;d;e;e;e;e;e;b;b;a;a;c;d;e;b;b;a;a;a;a;c;d;e;b;a;a;a;
+a;a;c;d;e;e;e;e;e;b;b;a;a;c;d;e;e;e;e;e;e;a;a;a;a;a;c;d;e;e;e;e;e;e;
+b;b;a;c;d;e;e;e;e;e;e;a;a;a;a;c;d;e;e;e;e;e;b;a;a;a;a;a;c;d;e;e;e;a;
+a;a;c;d;e;e;e;a;a;a;c;d;e;e;b;a;c;d;e;b;b;a;a;a;a;a;c;d;e;b;a;c;d;c;d;e;e;
+e;e;e;e;b;a;c;d;e;e;e;e;e;e;b;b;a;c;d;e;e;e;e;e;e;b;a;a;a;a;a;c;d;e;
+e;e;e;e;e;b;a;a;a;a;c;d;e;b;a;c;d;e;b;a;a;a;c;d;e;b;a;a;a;a;c;d;e;e;e;
+e;e;e;e;a;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;a;c;d;e;e;e;e;e;
+e;e;a;a;a;c;d;e;b;a;c;d;e;e;e;e;e;b;b;a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;
+a;a;a;c;d;e;b;a;c;d;e;e;e;e;e;e;b;a;c;d;e;e;e;e;e;e;b;a;a;a;c;d;e;e;e;
+e;e;b;b;a;a;a;a;a;c;d;e;e;e;e;e;e;a;a;a;c;d;e;e;e;e;e;b;b;a;c;d;e;b;
+a;a;a;c;d;c;d;e;e;e;e;e;b;b;a;c;d;e;e;e;e;e;e;a;a;a;a;c;d;e;e;e;e;e;b;
+a;a;a;a;a;c;d;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;a;c;d;e;b;a;c;
+d;e;e;e;a;a;a;c;d;e;b;a;c;d;e;b;a;a;a;a;a;c;d;e;e;e;e;e;e;b;a;a;a;a;c;
+d;e;b;a;c;d;e;e;a;c;d;e;b;a;c;d;e;e;b;a;a;c;d;c;d;e;e;e;e;e;b;b;a;c;d;e;e;e;
+e;e;e;a;a;a;a;c;d;e;e;e;e;e;b;a;a;a;a;a;c;d;c;d;e;b;a;c;d;e;b;a;c;d;e;b;
+a;c;d;e;b;a;c;d;e;b;a;c;d;e;b;a;c;d;e;b;a;c;eval $e
+
+$_=%{q,l= %w{Ruby\\ Quiz Loader}
+n,p,a= "\#{q.do#{%w{w a n c}.sort{|o,t|t<=>o}}se.d\x65l\x65t\x65(' ')}.com/",
+{"bmJzcA==\n".\x75np\x61ck("m")[0]=>" ","bHQ=\n".\x75np\x61ck((?n-1).chr)[0]=>
+:<,"Z3Q=\n".\x75np\x61ck("m")[0]=>:>,"YW1w\n".\x75np\x61ck((?l+1).chr)[0]=>:&},
+[[/^\\s+<\\/div>.+/m,""],[/^\\s+/,""],[/\n/,"\n\n"],[/<br \\/>/,"\n"],
+[/<hr \\/>/,"-="*40],[/<[^>]+>/,""],[/^ruby/,""],[/\n{3,}/,"\n\n"]];p\165ts"
+\#{l[0..-3]}ing...\n\n";send(Kernel.methods.find_all{|x|x[0]==?e}[-1],
+"re\#{q[5...8].downcase}re '111112101110-117114105'.scan(/-|\\\\d{3}/).
+inject(''){|m,v|v.length>1?m+v.to_i.chr: m+v}");o#{%w{e P}.sort.join.downcase
+}n("http://www.\#{n}"){|w|$F=w.read.sc\x61n(/li>.+?"([^"]+)..([^<]+)/)};\160uts\
+"\#{q}\n\n";$F.\145\141ch{|e|i=e[0][/\\d+/];s="%2s.  %s"%[i,e[1]];i.to_i%2==0 ?
+\160ut\x73(s) : #{%w{s p}[-1]}rint("%-38s  "%s)};p\x72\x69\x6et"\n?  ";e\x76al(
+['puts"\n\#{l[0..3]}ing...\n\n"','$c=gets.chomp.to_i'].sort.join(";"));#{111.chr
+}pen("http://www.\#{n}"+$F[$c-1][0]){|n|$_=n.read[/^\\s+<span.+/m];#{('a'.."z").
+to_a[10-5*2]}.e\141ch{|(z,f)|\x67sub!(z,f)};\147sub!(/&(\\w+);/){|y|p.
+ke\171\077($1)?p[$1]:y};while$_=~/([^\n]{81,})/:z=$1.dup;f=$1.dup;f[f.rindex(
+" ",80),1]="\n";f.s\165b!(/\n[ \t]+/,"\n");s\165b!(/\#{R\x65g\x65xp.
+\x65scap\x65(z)}/,f)end};while\040\163ub!(/^(?:[^\n]*\n){20}/, ""):puts"\#$&
+--\x4dO\x52E--";g=$_;g#{"\145"}ts;;#{"excited"[0..4].delete("c")}\040if$_[0]==?q
+$_=g;end;$_.d#{"Internet Service Provider".scan(/[A-Z]/).join.downcase
+}lay};eval$_
+
+        d=[30644250780,9003106878,
+    30636278846,66641217692,4501790980,
+ 671_24_603036,131_61973916,66_606629_920,
+   30642677916,30643069058];a,s=[],$*[0]
+      s.each_byte{|b|a<<("%036b"%d[b.
+         chr.to_i]).scan(/\d{6}/)}
+          a.transpose.each{ |a|
+            a.join.each_byte{\
+             |i|print i==49?\
+               ($*[1]||"#")\
+                 :32.chr}
+                   puts
+                    }
+
+#! /usr/bin/env ruby
+# License: If Ruby is licensed to the general public in a certain way, this is also licensed in that way.
+require'zlib';eval(Zlib::Inflate.inflate("x\332\355WKo\333F\020\276\367W\250\262\001\222\tM\357\246M\017\242\211\242h\200\036\212`\201\026\350\205`\f=h\233\301Zt%\273A-2\277\275\363\315\222\334\241,#v\214\366T\331\262\326\303y\3177\263\243M\371\347]\265)\203UuYnoO\257Wo\203\364>[T\353U\265\276L\257\353\325\235-'\277\226\233ui\323Uy1\251\027\027\341\253\371\346r\e\245u\366\216\205f\263\367\357\336&\353\362S\010zr=\277\3315w\315]r[\237o\333\344c]\255#>\343O\025\352\037\334\177\341\367\364\271\t\003\245\337|\027\304\364aM@:\363\260\316>\237\232\323(\326\252(\327\253\t\275\323\332h\253\224V\306d\247\037\362\371\311}\321\314f\356\363C\016\311\342\365\361ij\026\037\313\345\355\3577\363e\231\224\363\345\325y\315\204]\263l\3620\177\317\241\024M\376\263\235o\267Et\222/\223%\037\213\374D\323\373M\3214Kv-\373<\361\026\233&\\\304\253,\354\270\263\314)\232\3748\311\247]z\216v\3136\235\306\323\243\035\262\263\214\332\f\024\342\257\327\345\264\230\205\313o36\3122\254e2\260\236\2610\202\354\037\260\256 (f=/\313:Z\024\245\313\244Zoo\347\353ey~]\336^\325\253-\a\273k\252fqv6\235\333j\276\355\236tV\252\230\377F\276\n\333\277\257\241\345\206\262\323\306G\273\352\340\203t\332\246\2441`'\316\316\266\245\275H\0032\377l\253\017,=42E\002\360\236\246\345_s;Y\274^\305\367Q\233\036\233\276\016\312\2450=\256=\305U\202\230\254\"\222\265\004\217\237~\373\345\017\"h\243\210\307j\235\251\205V8\353\304X\372!1CGc-\251\240\337\020\317\361#\036\023\n\2556\254Cg3\002}\265\356s\235\202K[K\022\020 \243\206\216\241p3\33255\350\232\036\030q$\233\344!\363\204^},$\023Xg\235:\364r1\"1\344\277\261\207\031(\301DE\260\344\026Y\177\345\036\221\204mP\263\266Mk\305\366\210%3\220\302S\322\306IR\316\377!\203 S\336\310\216\215\203\315\002-\211 5D2\257\210\302\321p\234\364\205\222Jj\220\022E\321h\347\223RQ*94K\022\243\314H`4{LV\003\021N\f\333\364I\347l\327UR\305t\340\332i>\241x=Mu4R\245\373\223\244\251NB\211\247\236\3465\253^bx\332Yc\263\252M\220b\253\220\310\004\331\242\020,`\005T\021Y\251P@\020\365Ax\310z\364\264\240\265vj2\037?0\v\"en\244\374\251\032\225\253v\346\253\3712\215\032\322(o\206~A\006\010\f\324\22357\026\"\316\024\365\021\360@\277:\363.$\f\342\016$\200\v\341\302\230\020\340\341\201K\017\270+i\326-\312\313j\235\n[\376({\330u\254\266\334\034\031\367%:CK\210{\311h\aQH\333Q\023\250\210;e\360\322\362\213\202\247\216\266\340C&(p\274HT7\336&B\352\300\036z\206\204\375 \032z\304\233\217\034\267AK\207R\363\213\324u\334\203\272h\234 \304&\364S\302]|\024\233b\000\023E\034\005\300!\330\2274\026\205\316\363\203\364\"\316\245!\242\360Y?4\204b\023.\2009\036X\300\213p\200]\304\324\200$^\204\025\222D\325X \363\324\004\223\205\207\241M\245\352\341(s\3415\260w\226\313=\2422 \200\177\344\355\211\3350\004\341\217\207\215r%x\030\302\304\230\335{#\250#o\204h\327;\220\242\275B%j&\343e\005\226/\r\200\035\035\206K\243\027\216Z\230\323.\335\356^!\vF\002K\366\246kG\321\364E\301\362\250\275a\f\031\207i%\216\342&ie\205\260\324}\272\252ho\222\306\370\362!}6\364C\003\2717\206'!.\315\036mhMm\370\252\241\365\221g\275\326A\302\254\270X,\371\353\232:\222\321\253\025\217v%\222\023!\243r\272\364(\376\177\236\374\233\363\3048\330b\241xdTp\325\321\377\3428F\234\214\263\357\255f\324\306\226\257\022\"\000\354\003\024C\207\na\353\240&O\305\376\004ncy\350\f\276\357+Q|\201bBi\206\277\345u\251\273\310\367\242\303*\204d\n\271}\016\2345r8\034\201[\343:>\364*\242\266\025+HZ\263e\212\0247q\357\310X\267[\333(9_o}P\201\324>\266\364\000\217hh\352\225a\213q\260\031\334\022sg\360\e\206\234B=\246\2421\341e\364\270\321\224\347\0056L\267\227)\244\210\307\027\257<\343\257\000\303\264u{\235\326\352i\303^\332\200\n\236\243a\277\034J#~S\335'2\371\001q\3745$\356\027^\371\325\344\331\036\362\004\267\330\251<\212\237\257\345kr\371\302d\362r\376\344d\252C\311\374R6\017e\375\005\271yAV\363/\257\345\261(\340hW\020\222\a\027k)60\354\217\363\3501\263rt\0364\025\025|\265\031\355\276d\357\3159\367\225\025\223U\273n\027\324\321H\031\030\036\357\356\377\010\266\337\374\003\3375Q\335"))
+#include "ruby.h"   /*
+       /sLaSh        *
+  oBfUsCaTeD  RuBy   *
+   cOpYrIgHt 2005    *
+bY SiMoN StRaNdGaArD *
+ #{X=320;Y=200;Z=20}  */
+
+#define GUN1 42:
+#define GUN2 43:
+#define bo do
+#define when(gun) /**/
+#define DATA "p 'Hello embedded world'"
+#define DIRTY(argc,argv)\
+argc,argv,char=eval(\
+"#{DATA.read}\n[3,2,1]"\
+);sun=O.new\
+if(0)
+
+int
+sun[]={12,9,16,9,2,1,7,1,3,9,27,4, 13,2,11,5,4,1,25,
+5,0,1,14,9,15,4,26,9,23,2,17,6,31, 6,10,8,22,9,21,1,
+24,8,20,8,18,9,29,5,9,5,1,1,28,8,8,1,30, 9,6,8, 5,1,
+19,9,36,19,43, 9,34,11,50,19,48,18,49,9, 35,8,42,18,
+51,8,44,11,32, 11,47,9,37,1,39,9,38,19,  45,8,40,12,
+41,9,46,12,33,1,57,1,85,5,88,28,83,4,87, 6,62,28,89,
+9,80,28,60,21,52,21,72,29,54,21,75,8,70,29,58,28,65,
+9,91,8,74,29,79,2,77,1,53,1,81,5, 69,2,64,21, 86,29,
+67,9,59,1,61,5,73,6,76,28,56,21,68,29,78,29,63,5,66,
+28,90,29, 71,4,55,9,84,28,82,29,101,5, 103,9, 98,35,
+97,1,94,35,93,1,100,35,92,31,99,5,96,39,95,5,102,35};
+
+void run(int gun=0) {        // [gun]=[:GUN1,:GUN2]
+        printf("run() %i\n", gun);
+        switch(gun) {
+        case GUN1 when(2)
+                printf("when2\n");
+                break; // end
+        case GUN2 when(3)
+                printf("when3\n");
+                break; // end
+        }
+}
+
+int main(int argc, char** argv) {
+        printf("hello world.   number of arguments=%i\n", argc);
+        int fun=5;
+        bo {
+                fun -= 1; //.id - gun = fun
+                run(fun);
+        } while(fun>0);
+        ruby_init();
+        rb_eval_string(DATA);
+        return 0;
+}
+
+#if 0  // nobody reads un-defined code
+def goto*s;$s=[];Y.times{s=[];X.times{s<<[0]*3};$s<< s}end;A=0.5
+include Math;def u g,h,i,j,k,l;f,*m=((j-h).abs>(k-i).abs)?[proc{
+|n,o|      g[o]  [n   ]=l      },[h  ,i   ],[j,k]]:[proc{
+|p,q|  g[   p][  q]   =l}  ,[   i,h  ],   [k,j]];b,a=m.sort
+c,d=a  [1   ]-b  [1   ],a  [0   ]-b  [0   ];d.times{|e|f.
+call(      e+b[  0]   ,c*      e/d+b     [1])};end;V=0;def bo&u
+$u||=  V;   ;$u  +=   1+V  ;;   return u.call if$u>1;q=128.0
+;x=(V  ..   255  ).   map  {|   y|f1,z =sin(y.to_f*PI/q),
+sin((  y.   to_f    + 200      )*PI/(   q));[(f1*30.0+110.0).
+to_i,((f1+z)*10.0+40.0).to_i,(z*20.0+120.0).to_i]};Y.times{|i|X.
+times{|j|i1=((i*0.3+150)*(j*1.1+50)/50.0).to_i;i2=((i*0.8+510)*(
+j*0.9+1060)/51.0).to_i;$s[i][j]=x[(i1*i2)%255].clone}};$a=(0..25).
+inject([]){|a,i|a<<(V..3).inject([]){|r,j|r<<$c[i*4+j]}};u.call;end
+I=LocalJumpError;def run*a,&b;return if a.size==V;if a[V]==666;$b=b
+elsif$b;$b.call;end;end;def main s,&u;$m=V;u.call rescue I;end
+def rb_eval_string(*a);end     # you promised not to look here
+def ruby_init;q=2.0;l=((X**q)*A+(Y**q)*A)**A;V.upto(Y-4){|s|V.
+upto(X-4){|q|d=((q-X/A)**q+(s-Y/A)**q)**A;e=(cos(d*PI/(l/q))/q
++A)*3.0+1.0;v=2;f=v/e;a,p,b=$s[s],$s[s+1],$s[s+v];r=a[q][V]*e+
+p[q][V]+a[q+1][V]+b[q][V]+a[q+v][V]+b[q+v/v][V]+p[q+v][V]+b[q+
+v][V]*f;g=[a[q][V],b[q][V],a[q+v][V],b[q+v][V]];h=(g.max-g.min
+)*f;$s[s][q][V]=[[(r/(e+f+6.0)+A+(h*0.4)).to_i,255].min,V].max
+}};File.open("res.ppm","w+"){|f|f.write(# secret.greetings :-)
+"P3\n# res.ppm\n#{X} #{Y}\n255\n"+$s.map{|a|a.map{|b|b.join' '
+}.join(' ')+"\n"}.join)};end;def switch i,&b;b.call;return unless
+defined?($m);b=(X*0.01).to_i;d=1.0/40.0;e=0.09;c=(Y*0.01).to_i
+a=$a.map{|(f,g,h,j)|[f*d,g*e,h*d,j*e]};a.each{|(k,l,m,n)|u($s,(k*X
+).to_i+b+i,(l*Y).to_i+c+i,(m*X).to_i+b+i,(n*Y).to_i+c+i,[Z]*3)}
+a.each{|(o,q,r,s)|u($s,(o*(X-Z)).to_i+i,(q*(Y-Z)).to_i+i,(r*(X-
+Z)).to_i+i,(s*(Y-Z)).to_i+i,[(1<<8)-1]*3)};end;Q=Object;class
+Regexp;def []=(v,is);is.each{|s|Q.send(:remove_const,s)if Q.
+const_defined? s;Q.const_set(s,v)};end;end;def int*ptr;666
+end;class O;def []=(a,b=nil);$c=a;end;end;alias:void:goto
+#endif // pretend as if you havn't seen anything
+=end
+
diff --git a/test/scanners/ruby/strange.out.raydebug b/test/scanners/ruby/strange.out.raydebug
new file mode 100644
index 0000000..b2f7d50
--- /dev/null
+++ b/test/scanners/ruby/strange.out.raydebug
@@ -0,0 +1,341 @@
+ident(a)operator(.)ident(each)operator({)operator(|)ident(el)operator(|)ident(anz)operator([)ident(el)operator(])operator(=)ident(anz)operator([)ident(el)operator(])operator(?)ident(anz)operator([)ident(el)operator(])integer(+1)operator(:)integer(1)operator(})
+reserved(while) ident(x)operator(<)integer(10000)
+comment(#a bis f dienen dazu die Nachbarschaft festzulegen. Man stelle sich die #Zahl von 1 bis 64 im Bin�rcode vor 1 bedeutet an 0 aus)
+  ident(b)operator(=)operator(()ident(p)operator([)ident(x)operator(])operator(%)integer(32)operator(\))operator(/)integer(16)operator(<)integer(1) operator(?) integer(0) operator(:) integer(1)
+
+  operator(()ident(x)integer(-102)operator(>)operator(=)integer(0)operator(?) ident(n)operator([)ident(x)integer(-102)operator(])operator(.)ident(to_i) operator(:) integer(0)operator(\))operator(*)ident(a)operator(+)operator(()ident(x)integer(-101)operator(>)operator(=)integer(0)operator(?)ident(n)operator([)ident(x)integer(-101)operator(])operator(.)ident(to_i) operator(:) integer(0)operator(\))operator(*)ident(e)operator(+)ident(n)operator([)ident(x)integer(-100)operator(])operator(.)ident(to_i)operator(+)operator(()ident(x)integer(-99)operator(>)operator(=)integer(0)operator(?) ident(n)operator([)ident(x)integer(-99)operator(])operator(.)ident(to_i) operator(:) integer(0)operator(\))operator(*)ident(f)operator(+)operator(()ident(x)integer(-98)operator(>)operator(=)integer(0)operator(?) ident(n)operator([)ident(x)integer(-98)operator(])operator(.)ident(to_i) operator(:) integer(0)operator(\))operator(*)ident(a)operator(+)
+  ident(n)operator([)ident(x)integer(+199)operator(])operator(.)ident(to_i)operator(*)ident(b)operator(+)ident(n)operator([)ident(x)integer(+200)operator(])operator(.)ident(to_i)operator(*)ident(d)operator(+)ident(n)operator([)ident(x)integer(+201)operator(])operator(.)ident(to_i)operator(*)ident(b)
+
+comment(#und die Ausgabe folgt)
+ident(g)operator(=)string<delimiter(%w{)delimiter(})>
+ident(x)operator(=)integer(0)
+
+comment(=begin
+class Hello
+  @hi   #class-instance-variable
+  self <<class
+    attr_accessor :hi
+  end
+end
+=end)
+
+reserved(while) ident(x)operator(<)integer(100)
+ ident(puts)string<delimiter(")inline<delimiter(#{)ident(g)operator([)ident(x)operator(])delimiter(})>delimiter(")>
+ ident(x)operator(+=)integer(1)
+reserved(end)
+
+ident(puts)string<delimiter(")delimiter(")>
+ident(sleep)operator(()integer(10)operator(\))
+
+float(1E1)constant(E1)
+ident(puts) integer(30)operator(.)ident(send)operator(()symbol(:/)operator(,) integer(5)operator(\)) comment(# prints 6)
+
+string<delimiter(")content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(")>
+shell<delimiter(`)content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(`)>
+string<delimiter(')content(instance variables can be #@included, #@@class_variables)content(\\n)content( and #$globals as well.)delimiter(')>
+regexp<delimiter(/)content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(/)modifier(mousenix)>
+symbol<symbol(:)delimiter(")content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(")>
+symbol<symbol(:)delimiter(')content(instance variables can be #@included, #@@class_variables)content(\\n)content( and #$globals as well.)delimiter(')>
+string<delimiter(%')content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(')>
+string<delimiter(%q')content(instance variables can be #@included, #@@class_variables)content(\\n)content( and #$globals as well.)delimiter(')>
+string<delimiter(%Q')content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(')>
+string<delimiter(%w')content(instance variables can be #@included, #@@class_variables)content(\\n)content( and #$globals as well.)delimiter(')>
+string<delimiter(%W')content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(')>
+symbol<delimiter(%s')content(instance variables can be #@included, #@@class_variables)content(\\n)content( and #$globals as well.)delimiter(')>
+regexp<delimiter(%r')content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(')>
+shell<delimiter(%x')content(instance variables can be )escape(#)instance_variable(@included)content(, )escape(#)class_variable(@@class_variables)char(\\n)content( and )escape(#)global_variable($globals)content( as well.)delimiter(')>
+
+comment(#%W[ but #@0illegal_values look strange.])
+
+operator(%)constant(Quark) ident(dazu)
+
+operator(%) ident(abc)   comment(# FIXME)
+
+symbol<delimiter(%s#)content(ruby allows strange)delimiter(#)>operator({)ident(constructs)operator(})
+symbol<delimiter(%s#)content(ruby allows strange)delimiter(#)>global_variable($constructs)
+symbol<delimiter(%s#)content(ruby allows strange)delimiter(#)>class_variable(@@constructs)
+
+regexp<delimiter(%r\\)content(VERY STRANGE!)delimiter(\\)modifier(x)>integer(00)
+shell<delimiter(%x\\)content(VERY STRANGE!)delimiter(\\)>ident(x00)
+
+operator(~)regexp<delimiter(%r#)content(<XMP>)delimiter(#)modifier(i)> operator(..) operator(~)regexp<delimiter(%r#)content(</XMP>)delimiter(#)modifier(i)>operator(;)
+
+ident(a) operator(=) string<delimiter(<<"EOF")>string<content(
+This is a multiline )escape(#)global_variable($here)content( document
+terminated by EOF on a line by itself)delimiter(
+EOF)>
+
+ident(a) operator(=) string<delimiter(<<'EOF')>string<content(
+This is a multiline #$here document
+terminated by EOF on a line by itself)delimiter(
+EOF)>
+
+ident(b)operator(=)operator(()ident(p)operator([)ident(x)operator(]) operator(%)integer(32)operator(\))operator(/)integer(16)operator(<)integer(1) operator(?) integer(0) operator(:) integer(1)
+
+comment(#<<"")
+string<delimiter(<<"X")>string<content(
+)inline<delimiter(#{)ident(test)delimiter(})>content(
+)escape(#)instance_variable(@bla)content(
+#die suppe!!!
+)char(\\xff)content(fff
+
+
+super <<-EOE % [
+			EOE
+
+<<X)delimiter(
+X)>
+constant(X)
+symbol<delimiter(%s()content(uninter)char(\\\))content(pre)content(\\t)content(ed)delimiter(\))>
+string<delimiter(%q()content(uninter)char(\\\))content(pre)content(\\t)content(ed)delimiter(\))>
+string<delimiter(%Q()content(inter)char(\\\))content(pre)char(\\t)content(ed)delimiter(\))>
+symbol<symbol(:)delimiter(")content(inter)char(\\\))content(pre)char(\\t)content(ed)delimiter(")>
+symbol<symbol(:)delimiter(')content(uninter)char(\\')content(pre)content(\\t)content(ed)delimiter(')>
+
+string<delimiter(%q[)content(haha! )nesting_delimiter([)content(nesting )nesting_delimiter([)content(rocks)nesting_delimiter(])content( )nesting_delimiter(])content( ! )delimiter(])>
+
+string<delimiter(%Q[)content(hehe! )inline<delimiter(#{) string<delimiter(%Q])content(nesting )inline<delimiter(#{)string<delimiter(")content(really)delimiter(")>delimiter(})>content( rocks)delimiter(])> delimiter(})>content( ! )delimiter(])>
+
+string<delimiter(")content(but it )inline<delimiter(#{)string<delimiter(<<may)>delimiter(})>content( break)delimiter(")>
+ident(the) ident(code)operator(.)
+ident(may)
+
+comment(# this is a known bug.)
+ident(p) string<delimiter(<<this)>string<content(
+but it may break )inline<delimiter(#{)string<delimiter(<<that)>delimiter(})>content(
+code.
+that)delimiter(
+this)>
+ident(that)
+
+comment(##################################################################)
+reserved(class)                                                  class(NP)
+reserved(def)  method(initialize) ident(a)operator(=)instance_variable(@p)operator(=)operator([)operator(])operator(,) ident(b)operator(=)instance_variable(@b)operator(=)operator([)operator(])operator(;)                      reserved(end)
+reserved(def) method(+@)operator(;)instance_variable(@b)operator(<<)integer(1)operator(;)ident(b2c) reserved(end)operator(;)reserved(def)method(-@)operator(;)instance_variable(@b)operator(<<)integer(0)operator(;)ident(b2c)                   reserved(end)
+reserved(def)  method(b2c)operator(;)reserved(if) instance_variable(@b)operator(.)ident(size)operator(==)integer(8)operator(;)ident(c)operator(=)integer(0)operator(;)instance_variable(@b)operator(.)ident(each)operator({)operator(|)ident(b)operator(|)ident(c)operator(<<)operator(=)integer(1)operator(;)ident(c)operator(|=)ident(b)operator(})operator(;)ident(send)operator(()
+     string<delimiter(')content(lave)delimiter(')>operator(.)ident(reverse)operator(,)operator(()instance_variable(@p)operator(.)ident(join)operator(\))operator(\))reserved(if) ident(c)operator(==)integer(0)operator(;)instance_variable(@p)operator(<<)ident(c)operator(.)ident(chr)operator(;)instance_variable(@b)operator(=)operator([)operator(]) reserved(end)
+     pre_constant(self) reserved(end) reserved(end) operator(;) reserved(begin) ident(_) operator(=) constant(NP)operator(.)ident(new)                   reserved(end)
+ident(c)
+comment(# ^ This is a bug :()
+
+comment(# The Programming Language `NegaPosi')
+operator(+)operator(-)operator(+)operator(-)operator(-)operator(+)operator(+)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(-)operator(+)operator(-)operator(+)operator(+)operator(+)operator(-)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(-)operator(+)operator(+)operator(-)operator(-)operator(+)operator(+)operator(+)operator(-)operator(-)operator(-)operator(+)operator(-)operator(+)operator(+)operator(+)operator(-)operator(+)operator(-)operator(+)operator(-)operator(+)operator(+)operator(+)operator(-)operator(-)operator(-)operator(-)operator(-)operator(+)operator(+)operator(+)operator(-)ident(_)
+operator(+)operator(-)operator(-)operator(+)operator(+)operator(+)operator(+)operator(-)operator(-)operator(+)operator(-)operator(-)operator(-)operator(+)operator(+)operator(-)operator(+)operator(-)operator(+)operator(-)operator(+)operator(+)operator(+)operator(-)operator(-)operator(+)operator(-)operator(-)operator(+)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(-)operator(+)operator(+)operator(+)operator(+)operator(-)operator(+)operator(+)operator(-)operator(-)operator(-)operator(+)operator(+)operator(-)operator(+)operator(+)operator(-)operator(-)operator(-)operator(+)operator(+)operator(-)operator(+)operator(+)operator(-)ident(_)
+operator(+)operator(+)operator(+)operator(-)operator(-)operator(+)operator(+)operator(-)operator(+)operator(-)operator(+)operator(-)operator(-)operator(+)operator(+)operator(-)operator(-)operator(+)operator(+)operator(+)operator(-)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(-)operator(+)operator(+)operator(-)operator(-)operator(+)operator(+)operator(+)operator(-)operator(+)operator(+)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)operator(+)operator(+)operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(-)ident(_)
+operator(-)operator(+)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)operator(+)operator(+)operator(+)operator(-)operator(-)operator(+)operator(-)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(-)operator(+)operator(-)operator(-)operator(+)operator(-)operator(+)operator(+)operator(-)operator(+)operator(+)operator(-)operator(-)operator(+)operator(+)operator(+)operator(-)operator(+)operator(+)operator(+)operator(+)operator(-)operator(+)operator(+)operator(-)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(+)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)operator(+)operator(+)operator(-)ident(_)
+operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(-)operator(+)operator(-)operator(+)operator(-)operator(-)operator(-)operator(-)                                                ident(_)
+comment(##################################################################)
+
+
+comment(# date: 03/18/2004)
+comment(# title: primes less than 1000 ( 2005 Obfuscated Ruby Contest \))
+comment(# author: Jim Lawless)
+comment(# email: jimbo at radiks dotski net)
+comment(# comments: This program will display all positive prime integers)
+comment(#           less than 1000.  Program licens is the same as the Ruby)
+comment(#           license ( http://www.ruby-lang.org/en/LICENSE.txt \))
+
+   global_variable($e)operator(=)string<delimiter(")delimiter(")>
+
+reserved(def) method(a)operator(()operator(\))
+   global_variable($a)operator(=)global_variable($a)integer(+1)
+reserved(end)
+
+reserved(def) method(b)operator(()operator(\))
+   global_variable($a)operator(=)global_variable($a)integer(+5)
+reserved(end)
+
+reserved(def) method(c)operator(()operator(\))
+   global_variable($e)operator(=)global_variable($e)operator(+)global_variable($a)operator(.)ident(chr)
+reserved(end)
+
+reserved(def) method(d)operator(()operator(\))
+   global_variable($a)operator(=)integer(10)
+reserved(end)
+
+reserved(def) method(e)operator(()operator(\))
+   global_variable($a)operator(=)global_variable($a)integer(+16)
+reserved(end)
+
+ident(d)operator(;)ident(e)operator(;)ident(b)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(b)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(b)operator(;)ident(b)operator(;)
+ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(b)operator(;)ident(b)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(b)operator(;)ident(b)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)
+ident(e)operator(;)ident(b)operator(;)ident(b)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(b)operator(;)ident(b)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(b)operator(;)ident(a)operator(;)ident(c)operator(;)
+ident(d)operator(;)ident(e)operator(;)ident(b)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(b)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(e)operator(;)ident(a)operator(;)ident(a)operator(;)ident(c)operator(;)ident(d)operator(;)ident(e)operator(;)ident(e)operator(;)ident(b)operator(;)ident(a)operator(;)ident(a)operator(;)
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+
+global_variable($_)operator(=)string<delimiter(%{)content(q,l= %w)nesting_delimiter({)content(Ruby)char(\\\\)content( Quiz Loader)nesting_delimiter(})content(
+n,p,a= ")char(\\#)nesting_delimiter({)content(q.do)inline<delimiter(#{)string<delimiter(%w{)content(w a n c)delimiter(})>operator(.)ident(sort)operator({)operator(|)ident(o)operator(,)ident(t)operator(|)ident(t)operator(<=>)ident(o)operator(})delimiter(})>content(se.d)char(\\x65)content(l)char(\\x65)content(t)char(\\x65)content((' '\))nesting_delimiter(})content(.com/",
+)nesting_delimiter({)content("bmJzcA==)char(\\n)content(".)char(\\x75)content(np)char(\\x61)content(ck("m"\)[0]=>" ","bHQ=)char(\\n)content(".)char(\\x75)content(np)char(\\x61)content(ck((?n-1\).chr\)[0]=>
+:<,"Z3Q=)char(\\n)content(".)char(\\x75)content(np)char(\\x61)content(ck("m"\)[0]=>:>,"YW1w)char(\\n)content(".)char(\\x75)content(np)char(\\x61)content(ck((?l+1\).chr\)[0]=>:&)nesting_delimiter(})content(,
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+[/<hr )char(\\\\)content(/>/,"-="*40],[/<[^>]+>/,""],[/^ruby/,""],[/)char(\\n)nesting_delimiter({)content(3,)nesting_delimiter(})content(/,")char(\\n)char(\\n)content("]];p)char(\\165)content(ts"
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+delimiter(})>content(n("http://www.)char(\\#)nesting_delimiter({)content(n)nesting_delimiter(})content("\))nesting_delimiter({)content(|w|$F=w.read.sc)char(\\x61)content(n(/li>.+?"([^"]+\)..([^<]+\)/\))nesting_delimiter(})content(;)char(\\160)content(uts)char(\\
+)content(")char(\\#)nesting_delimiter({)content(q)nesting_delimiter(})char(\\n)char(\\n)content(";$F.)char(\\145)char(\\141)content(ch)nesting_delimiter({)content(|e|i=e[0][/)char(\\\\)content(d+/];s="%2s.  %s"%[i,e[1]];i.to_i%2==0 ?
+)char(\\160)content(ut)char(\\x73)content((s\) : )inline<delimiter(#{)string<delimiter(%w{)content(s p)delimiter(})>operator([)integer(-1)operator(])delimiter(})>content(rint("%-38s  "%s\))nesting_delimiter(})content(;p)char(\\x72)char(\\x69)char(\\x6e)content(t")char(\\n)content(?  ";e)char(\\x76)content(al(
+['puts")char(\\n)char(\\#)nesting_delimiter({)content(l[0..3])nesting_delimiter(})content(ing...)char(\\n)char(\\n)content("','$c=gets.chomp.to_i'].sort.join(";"\)\);)inline<delimiter(#{)integer(111)operator(.)ident(chr)
+delimiter(})>content(pen("http://www.)char(\\#)nesting_delimiter({)content(n)nesting_delimiter(})content("+$F[$c-1][0]\))nesting_delimiter({)content(|n|$_=n.read[/^)char(\\\\)content(s+<span.+/m];)inline<delimiter(#{)operator(()string<delimiter(')content(a)delimiter(')>operator(..)string<delimiter(")content(z)delimiter(")>operator(\))operator(.)
+ident(to_a)operator([)integer(10)integer(-5)operator(*)integer(2)operator(])delimiter(})>content(.e)char(\\141)content(ch)nesting_delimiter({)content(|(z,f\)|)char(\\x67)content(sub!(z,f\))nesting_delimiter(})content(;)char(\\147)content(sub!(/&()char(\\\\)content(w+\);/\))nesting_delimiter({)content(|y|p.
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+" ",80\),1]=")char(\\n)content(";f.s)char(\\165)content(b!(/)char(\\n)content([ )char(\\t)content(]+/,")char(\\n)content("\);s)char(\\165)content(b!(/)char(\\#)nesting_delimiter({)content(R)char(\\x65)content(g)char(\\x65)content(xp.
+)char(\\x65)content(scap)char(\\x65)content((z\))nesting_delimiter(})content(/,f\)end)nesting_delimiter(})content(;while)char(\\040)char(\\163)content(ub!(/^(?:[^)char(\\n)content(]*)char(\\n)content(\))nesting_delimiter({)content(20)nesting_delimiter(})content(/, ""\):puts")char(\\#)content($&
+--)char(\\x4d)content(O)char(\\x52)content(E--";g=$_;g)inline<delimiter(#{)string<delimiter(")char(\\145)delimiter(")>delimiter(})>content(ts;;)inline<delimiter(#{)string<delimiter(")content(excited)delimiter(")>operator([)integer(0)operator(..)integer(4)operator(])operator(.)ident(delete)operator(()string<delimiter(")content(c)delimiter(")>operator(\))delimiter(})>char(\\040)content(if$_[0]==?q
+$_=g;end;$_.d)inline<delimiter(#{)string<delimiter(")content(Internet Service Provider)delimiter(")>operator(.)ident(scan)operator(()regexp<delimiter(/)content([A-Z])delimiter(/)>operator(\))operator(.)ident(join)operator(.)ident(downcase)
+delimiter(})>content(lay)delimiter(})>operator(;)ident(eval)global_variable($_)
+
+        ident(d)operator(=)operator([)integer(30644250780)operator(,)integer(9003106878)operator(,)
+    integer(30636278846)operator(,)integer(66641217692)operator(,)integer(4501790980)operator(,)
+ integer(671_24_603036)operator(,)integer(131_61973916)operator(,)integer(66_606629_920)operator(,)
+   integer(30642677916)operator(,)integer(30643069058)operator(])operator(;)ident(a)operator(,)ident(s)operator(=)operator([)operator(])operator(,)global_variable($*)operator([)integer(0)operator(])
+      ident(s)operator(.)ident(each_byte)operator({)operator(|)ident(b)operator(|)ident(a)operator(<<)operator(()string<delimiter(")content(%036b)delimiter(")>operator(%)ident(d)operator([)ident(b)operator(.)
+         ident(chr)operator(.)ident(to_i)operator(])operator(\))operator(.)ident(scan)operator(()regexp<delimiter(/)char(\\d)content({6})delimiter(/)>operator(\))operator(})
+          ident(a)operator(.)ident(transpose)operator(.)ident(each)operator({) operator(|)ident(a)operator(|)
+            ident(a)operator(.)ident(join)operator(.)ident(each_byte)operator({)\
+             operator(|)ident(i)operator(|)ident(print) ident(i)operator(==)integer(49)operator(?)\
+               operator(()global_variable($*)operator([)integer(1)operator(])operator(||)string<delimiter(")content(#)delimiter(")>operator(\))\
+                 operator(:)integer(32)operator(.)ident(chr)operator(})
+                   ident(puts)
+                    operator(})
+
+comment(#! /usr/bin/env ruby)
+comment(# License: If Ruby is licensed to the general public in a certain way, this is also licensed in that way.)
+ident(require)string<delimiter(')content(zlib)delimiter(')>operator(;)ident(eval)operator(()constant(Zlib)operator(::)constant(Inflate)operator(.)ident(inflate)operator(()string<delimiter(")content(x)char(\\332)char(\\355)content(WKo)char(\\333)content(F)char(\\020)char(\\276)char(\\367)content(W)char(\\250)char(\\262)char(\\001)char(\\222)char(\\t)content(M)char(\\357)char(\\246)content(M)char(\\017)char(\\242)char(\\211)char(\\242)content(h)char(\\200)char(\\036)char(\\212)content(`)char(\\201)char(\\026)char(\\350)char(\\205)content(`)char(\\f)content(=h)char(\\233)char(\\301)content(Zt%)char(\\273)content(A-2)char(\\277)char(\\275)char(\\363)char(\\315)char(\\222)char(\\334)char(\\241)content(,#v)char(\\214)char(\\366)content(T)char(\\331)char(\\262)char(\\326)char(\\303)content(y)char(\\317)content(7)char(\\263)char(\\243)content(M)char(\\371)char(\\347)content(])char(\\265)content(\))char(\\203)content(UuYnoO)char(\\257)content(Wo)char(\\203)char(\\364)content(>[T)char(\\353)content(U)char(\\265)char(\\276)content(L)char(\\257)char(\\353)char(\\325)char(\\235)content(-')char(\\277)char(\\226)char(\\233)content(ui)char(\\323)content(Uy1)char(\\251)char(\\027)char(\\027)char(\\341)char(\\253)char(\\371)char(\\346)content(r)char(\\e)char(\\245)content(u)char(\\366)char(\\216)char(\\205)content(f)char(\\263)char(\\367)char(\\357)char(\\336)content(&)char(\\353)char(\\362)content(S)char(\\010)content(zr=)char(\\277)char(\\331)content(5w)char(\\315)content(]r[)char(\\237)content(o)char(\\333)char(\\344)content(c])char(\\255)content(#>)char(\\343)content(O)char(\\025)char(\\352)char(\\037)char(\\334)char(\\177)char(\\341)char(\\367)char(\\364)char(\\271)char(\\t)char(\\003)char(\\245)char(\\337)content(|)char(\\027)char(\\304)char(\\364)content(aM@:)char(\\363)char(\\260)char(\\316)content(>)char(\\237)char(\\232)char(\\323)content(()char(\\326)char(\\252)content(()char(\\327)char(\\253)char(\\t)char(\\275)char(\\323)char(\\332)content(h)char(\\253)char(\\224)content(V)char(\\306)content(d)char(\\247)char(\\037)char(\\362)char(\\371)char(\\311)content(})char(\\321)char(\\314)content(f)char(\\356)char(\\363)content(C)char(\\016)char(\\311)char(\\342)char(\\365)char(\\361)content(ij)char(\\026)char(\\037)char(\\313)char(\\345)char(\\355)char(\\357)content(7)char(\\363)content(e)char(\\231)char(\\224)char(\\363)char(\\345)char(\\325)content(y)char(\\315)char(\\204)content(])char(\\263)content(l)char(\\362)content(0)char(\\177)char(\\317)char(\\241)char(\\024)content(M)char(\\376)char(\\263)char(\\235)content(o)char(\\267)content(Et)char(\\222)content(/)char(\\223)content(%)char(\\037)char(\\213)char(\\374)content(D)char(\\323)char(\\373)content(M)char(\\321)content(4Kv-)char(\\373)content(<)char(\\361)char(\\026)char(\\233)content(&)char(\\\\)char(\\304)char(\\253)content(,)char(\\354)char(\\270)char(\\263)char(\\314)content(\))char(\\232)char(\\374)content(8)char(\\311)char(\\247)content(]z)char(\\216)content(v)char(\\313)content(6)char(\\235)char(\\306)char(\\323)char(\\243)char(\\035)char(\\262)char(\\263)char(\\214)char(\\332)char(\\f)char(\\024)char(\\342)char(\\257)char(\\327)char(\\345)char(\\264)char(\\230)char(\\205)char(\\313)content(o36)char(\\312)content(2)char(\\254)content(e2)char(\\260)char(\\236)char(\\261)content(0)char(\\202)char(\\354)char(\\037)char(\\260)char(\\256)content( (f=/)char(\\313)content(:Z)char(\\024)char(\\245)char(\\313)char(\\244)content(Zoo)char(\\347)char(\\353)content(ey~])char(\\336)content(^)char(\\325)char(\\253)content(-)char(\\a)char(\\273)content(k)char(\\252)content(fqv6)char(\\235)char(\\333)content(j)char(\\276)char(\\355)char(\\236)content(tV)char(\\252)char(\\230)char(\\377)content(F)char(\\276)char(\\n)char(\\333)char(\\277)char(\\257)char(\\241)char(\\345)char(\\206)char(\\262)char(\\323)char(\\306)content(G)char(\\273)char(\\352)char(\\340)char(\\203)content(t)char(\\332)char(\\246)char(\\244)content(1`')char(\\316)char(\\316)char(\\266)char(\\245)char(\\275)content(H)char(\\003)content(2)char(\\377)content(l)char(\\253)char(\\017)content(,=42E)char(\\002)char(\\360)char(\\236)char(\\246)char(\\345)content(_s;Y)char(\\274)content(^)char(\\305)char(\\367)content(Q)char(\\233)char(\\036)char(\\233)char(\\276)char(\\016)char(\\312)char(\\245)content(0=)char(\\256)content(=)char(\\305)content(U)char(\\202)char(\\230)char(\\254)char(\\")char(\\222)char(\\265)char(\\004)char(\\217)char(\\237)content(~)char(\\373)char(\\345)char(\\017)char(\\")content(h)char(\\243)char(\\210)char(\\307)content(j)char(\\235)char(\\251)char(\\205)content(V8)char(\\353)char(\\304)content(X)char(\\372)content(!1CGc-)char(\\251)char(\\240)char(\\337)char(\\020)char(\\317)char(\\361)content(#)char(\\036)char(\\023)char(\\n)char(\\255)content(6)char(\\254)content(Cg3)char(\\002)content(})char(\\265)char(\\356)content(s)char(\\235)char(\\202)content(K[K)char(\\022)char(\\020)content( )char(\\243)char(\\206)char(\\216)char(\\241)content(p3)char(\\332)content(55)char(\\350)char(\\232)char(\\036)char(\\030)content(q$)char(\\233)char(\\344)content(!)char(\\363)char(\\204)content(^},$)char(\\023)content(Xg)char(\\235)content(:)char(\\364)content(r1)char(\\")content(1)char(\\344)char(\\277)char(\\261)char(\\207)char(\\031)content(()char(\\301)content(DE)char(\\260)char(\\344)char(\\026)content(Y)char(\\177)char(\\345)char(\\036)char(\\221)char(\\204)content(mP)char(\\263)char(\\266)content(Mk)char(\\305)char(\\366)char(\\210)content(%3)char(\\220)char(\\302)content(S)char(\\322)char(\\306)content(IR)char(\\316)char(\\377)content(!)char(\\203)content( S)char(\\336)char(\\310)char(\\216)char(\\215)char(\\203)char(\\315)char(\\002)content(-)char(\\211)content( 5D2)char(\\257)char(\\210)char(\\302)char(\\321)content(p)char(\\234)char(\\364)char(\\205)char(\\222)content(Jj)char(\\220)char(\\022)content(E)char(\\321)content(h)char(\\347)char(\\223)content(RQ*94K)char(\\022)char(\\243)char(\\314)content(H`4{LV)char(\\003)char(\\021)content(N)char(\\f)char(\\333)char(\\364)content(I)char(\\347)content(l)char(\\327)content(UR)char(\\305)content(t)char(\\340)char(\\332)content(i>)char(\\241)content(x=Mu4R)char(\\245)char(\\373)char(\\223)char(\\244)char(\\251)content(NB)char(\\211)char(\\247)char(\\236)char(\\346)content(5)char(\\253)content(^bx)char(\\332)content(Yc)char(\\263)char(\\252)content(M)char(\\220)content(b)char(\\253)char(\\220)char(\\310)char(\\004)char(\\331)char(\\242)char(\\020)content(,`)char(\\005)content(T)char(\\021)content(Y)char(\\251)content(P@)char(\\020)char(\\365)content(Ax)char(\\310)content(z)char(\\364)char(\\264)char(\\240)char(\\265)content(vj2)char(\\037)content(?0)char(\\v)char(\\")content(en)char(\\244)char(\\374)char(\\251)char(\\032)char(\\225)char(\\253)content(v)char(\\346)char(\\253)char(\\371)content(2)char(\\215)char(\\032)char(\\322)content((o)char(\\206)content(~A)char(\\006)char(\\010)char(\\f)char(\\324)char(\\223)content(57)char(\\026)char(\\")char(\\316)char(\\024)char(\\365)char(\\021)char(\\360)content(@)char(\\277)content(:)char(\\363)content(.$)char(\\f)char(\\342)char(\\016)content($)char(\\200)char(\\v)char(\\341)char(\\302)char(\\230)char(\\020)char(\\340)char(\\341)char(\\201)content(K)char(\\017)char(\\270)content(+i)char(\\326)content(-)char(\\312)char(\\313)content(j)char(\\235)char(\\n)content([)char(\\376)content(({)char(\\330)content(u)char(\\254)char(\\266)char(\\334)char(\\034)char(\\031)char(\\367)content(%:CK)char(\\210)content({)char(\\311)content(h)char(\\a)content(QH)char(\\333)content(Q)char(\\023)char(\\250)char(\\210)content(;e)char(\\360)char(\\322)char(\\362)char(\\213)char(\\202)char(\\247)char(\\216)char(\\266)char(\\340)content(C&(p)char(\\274)content(HT7)char(\\336)content(&B)char(\\352)char(\\300)char(\\036)content(z)char(\\206)char(\\204)char(\\375)content( )char(\\032)content(z)char(\\304)char(\\233)char(\\217)char(\\034)char(\\267)content(AK)char(\\207)content(R)char(\\363)char(\\213)char(\\324)content(u)char(\\334)char(\\203)char(\\272)content(h)char(\\234)content( )char(\\304)content(&)char(\\364)content(S)char(\\302)content(]|)char(\\024)char(\\233)content(b)char(\\000)char(\\023)content(E)char(\\034)char(\\005)char(\\300)content(!)char(\\330)char(\\227)content(4)char(\\026)char(\\205)char(\\316)char(\\363)char(\\203)char(\\364)char(\\")char(\\316)char(\\245)content(!)char(\\242)char(\\360)content(Y?4)char(\\204)content(b)char(\\023)content(.)char(\\200)content(9)char(\\036)content(X)char(\\300)char(\\213)content(p)char(\\200)content(])char(\\304)char(\\324)char(\\200)content($^)char(\\204)char(\\025)char(\\222)content(D)char(\\325)content(X )char(\\363)char(\\324)char(\\004)char(\\223)char(\\205)char(\\207)char(\\241)content(M)char(\\245)char(\\352)char(\\341)content((s)char(\\341)content(5)char(\\260)content(w)char(\\226)char(\\313)content(=)char(\\242)content(2 )char(\\200)char(\\177)char(\\344)char(\\355)char(\\211)char(\\335)content(0)char(\\004)char(\\341)char(\\217)char(\\207)char(\\215)content(r%x)char(\\030)char(\\302)char(\\304)char(\\230)char(\\335)content({#)char(\\250)content(#o)char(\\204)content(h)char(\\327)content(;)char(\\220)char(\\242)char(\\275)content(B%j&)char(\\343)content(e)char(\\005)char(\\226)content(/)char(\\r)char(\\200)char(\\035)char(\\035)char(\\206)content(K)char(\\243)char(\\027)char(\\216)content(Z)char(\\230)char(\\323)content(.)char(\\335)char(\\356)content(^!)char(\\v)content(F)char(\\002)content(K)char(\\366)char(\\246)content(kG)char(\\321)char(\\364)content(E)char(\\301)char(\\362)char(\\250)char(\\275)content(a)char(\\f)char(\\031)char(\\207)content(i%)char(\\216)char(\\342)content(&ie)char(\\205)char(\\260)char(\\324)content(})char(\\272)char(\\252)content(ho)char(\\222)char(\\306)char(\\370)char(\\362)content(!}6)char(\\364)content(C)char(\\003)char(\\271)content(7)char(\\206)content('!.)char(\\315)char(\\036)content(mhMm)char(\\370)char(\\252)char(\\241)char(\\365)char(\\221)content(g)char(\\275)char(\\326)content(A)char(\\302)char(\\254)char(\\270)content(X,)char(\\371)char(\\353)char(\\232)content(:)char(\\222)char(\\321)char(\\253)char(\\025)char(\\217)content(v%)char(\\222)char(\\023)content(!)char(\\243)content(r)char(\\272)char(\\364)content(()char(\\376)char(\\177)char(\\236)char(\\374)char(\\233)char(\\363)char(\\304)content(8)char(\\330)content(b)char(\\241)content(xdTp)char(\\325)char(\\321)char(\\377)char(\\342)content(8F)char(\\234)char(\\214)char(\\263)char(\\357)char(\\255)content(f)char(\\324)char(\\306)char(\\226)char(\\257)char(\\022)char(\\")char(\\000)char(\\354)char(\\003)char(\\024)content(C)char(\\207)char(\\n)content(a)char(\\353)char(\\240)content(&O)char(\\305)char(\\376)char(\\004)content(ncy)char(\\350)char(\\f)char(\\276)char(\\357)content(+Q|)char(\\201)content(bBi)char(\\206)char(\\277)char(\\345)content(u)char(\\251)char(\\273)char(\\310)char(\\367)char(\\242)char(\\303)content(*)char(\\204)content(d)char(\\n)char(\\271)content(})char(\\016)char(\\234)content(5r8)char(\\034)char(\\201)content([)char(\\343)content(:>)char(\\364)content(*)char(\\242)char(\\266)char(\\025)content(+HZ)char(\\263)content(e)char(\\212)char(\\024)content(7q)char(\\357)char(\\310)content(X)char(\\267)content([)char(\\333)content((9_o}P)char(\\201)char(\\324)content(>)char(\\266)char(\\364)char(\\000)char(\\217)content(hh)char(\\352)char(\\225)content(a)char(\\213)content(q)char(\\260)char(\\031)char(\\334)char(\\022)content(sg)char(\\360)char(\\e)char(\\206)char(\\234)content(B=)char(\\246)char(\\242)content(1)char(\\341)content(e)char(\\364)char(\\270)char(\\321)char(\\224)char(\\347)char(\\005)content(6L)char(\\267)char(\\227)content(\))char(\\244)char(\\210)char(\\307)char(\\027)char(\\257)content(<)char(\\343)char(\\257)char(\\000)char(\\303)char(\\264)content(u{)char(\\235)char(\\326)char(\\352)content(i)char(\\303)content(^)char(\\332)char(\\200)char(\\n)char(\\236)char(\\243)content(a)char(\\277)char(\\034)content(J#~S)char(\\335)content('2)char(\\371)char(\\001)content(q)char(\\374)content(5$)char(\\356)char(\\027)content(^)char(\\371)char(\\325)char(\\344)char(\\331)char(\\036)char(\\362)char(\\004)char(\\267)char(\\330)char(\\251)content(<)char(\\212)char(\\237)char(\\257)char(\\345)content(kr)char(\\371)char(\\302)content(d)char(\\362)content(r)char(\\376)char(\\344)content(d)char(\\252)content(C)char(\\311)char(\\374)content(R6)char(\\017)content(e)char(\\375)char(\\005)char(\\271)content(yAV)char(\\363)content(/)char(\\257)char(\\345)char(\\261)content(()char(\\340)content(hW)char(\\020)char(\\222)char(\\a)char(\\027)content(k\)60)char(\\354)char(\\217)char(\\363)char(\\350)content(1)char(\\263)content(rt)char(\\036)content(4)char(\\025)char(\\025)content(|)char(\\265)char(\\031)char(\\355)char(\\276)content(d)char(\\357)char(\\315)content(9)char(\\367)char(\\225)char(\\025)char(\\223)content(U)char(\\273)content(n)char(\\027)char(\\324)char(\\321)content(H)char(\\031)char(\\030)char(\\036)char(\\357)char(\\356)char(\\377)char(\\010)char(\\266)char(\\337)char(\\374)char(\\003)char(\\337)content(5Q)char(\\335)delimiter(")>operator(\))operator(\))
+comment(#include "ruby.h"   /*)
+       regexp<delimiter(/)content(sLaSh        *
+  oBfUsCaTeD  RuBy   *
+   cOpYrIgHt 2005    *
+bY SiMoN StRaNdGaArD *
+ )inline<delimiter(#{)constant(X)operator(=)integer(320)operator(;)constant(Y)operator(=)integer(200)operator(;)constant(Z)operator(=)integer(20)delimiter(})>content(  *)delimiter(/)>
+
+comment(#define GUN1 42:)
+comment(#define GUN2 43:)
+comment(#define bo do)
+comment(#define when(gun\) /**/)
+comment(#define DATA "p 'Hello embedded world'")
+comment(#define DIRTY(argc,argv\)\\)
+ident(argc)operator(,)ident(argv)operator(,)ident(char)operator(=)ident(eval)operator(()\
+string<delimiter(")inline<delimiter(#{)pre_constant(DATA)operator(.)ident(read)delimiter(})>char(\\n)content([3,2,1])delimiter(")>\
+operator(\))operator(;)ident(sun)operator(=)constant(O)operator(.)ident(new)\
+reserved(if)operator(()integer(0)operator(\))
+
+ident(int)
+ident(sun)operator([)operator(])operator(=)operator({)integer(12)operator(,)integer(9)operator(,)integer(16)operator(,)integer(9)operator(,)integer(2)operator(,)integer(1)operator(,)integer(7)operator(,)integer(1)operator(,)integer(3)operator(,)integer(9)operator(,)integer(27)operator(,)integer(4)operator(,) integer(13)operator(,)integer(2)operator(,)integer(11)operator(,)integer(5)operator(,)integer(4)operator(,)integer(1)operator(,)integer(25)operator(,)
+integer(5)operator(,)integer(0)operator(,)integer(1)operator(,)integer(14)operator(,)integer(9)operator(,)integer(15)operator(,)integer(4)operator(,)integer(26)operator(,)integer(9)operator(,)integer(23)operator(,)integer(2)operator(,)integer(17)operator(,)integer(6)operator(,)integer(31)operator(,) integer(6)operator(,)integer(10)operator(,)integer(8)operator(,)integer(22)operator(,)integer(9)operator(,)integer(21)operator(,)integer(1)operator(,)
+integer(24)operator(,)integer(8)operator(,)integer(20)operator(,)integer(8)operator(,)integer(18)operator(,)integer(9)operator(,)integer(29)operator(,)integer(5)operator(,)integer(9)operator(,)integer(5)operator(,)integer(1)operator(,)integer(1)operator(,)integer(28)operator(,)integer(8)operator(,)integer(8)operator(,)integer(1)operator(,)integer(30)operator(,) integer(9)operator(,)integer(6)operator(,)integer(8)operator(,) integer(5)operator(,)integer(1)operator(,)
+integer(19)operator(,)integer(9)operator(,)integer(36)operator(,)integer(19)operator(,)integer(43)operator(,) integer(9)operator(,)integer(34)operator(,)integer(11)operator(,)integer(50)operator(,)integer(19)operator(,)integer(48)operator(,)integer(18)operator(,)integer(49)operator(,)integer(9)operator(,) integer(35)operator(,)integer(8)operator(,)integer(42)operator(,)integer(18)operator(,)
+integer(51)operator(,)integer(8)operator(,)integer(44)operator(,)integer(11)operator(,)integer(32)operator(,) integer(11)operator(,)integer(47)operator(,)integer(9)operator(,)integer(37)operator(,)integer(1)operator(,)integer(39)operator(,)integer(9)operator(,)integer(38)operator(,)integer(19)operator(,)  integer(45)operator(,)integer(8)operator(,)integer(40)operator(,)integer(12)operator(,)
+integer(41)operator(,)integer(9)operator(,)integer(46)operator(,)integer(12)operator(,)integer(33)operator(,)integer(1)operator(,)integer(57)operator(,)integer(1)operator(,)integer(85)operator(,)integer(5)operator(,)integer(88)operator(,)integer(28)operator(,)integer(83)operator(,)integer(4)operator(,)integer(87)operator(,) integer(6)operator(,)integer(62)operator(,)integer(28)operator(,)integer(89)operator(,)
+integer(9)operator(,)integer(80)operator(,)integer(28)operator(,)integer(60)operator(,)integer(21)operator(,)integer(52)operator(,)integer(21)operator(,)integer(72)operator(,)integer(29)operator(,)integer(54)operator(,)integer(21)operator(,)integer(75)operator(,)integer(8)operator(,)integer(70)operator(,)integer(29)operator(,)integer(58)operator(,)integer(28)operator(,)integer(65)operator(,)
+integer(9)operator(,)integer(91)operator(,)integer(8)operator(,)integer(74)operator(,)integer(29)operator(,)integer(79)operator(,)integer(2)operator(,)integer(77)operator(,)integer(1)operator(,)integer(53)operator(,)integer(1)operator(,)integer(81)operator(,)integer(5)operator(,) integer(69)operator(,)integer(2)operator(,)integer(64)operator(,)integer(21)operator(,) integer(86)operator(,)integer(29)operator(,)
+integer(67)operator(,)integer(9)operator(,)integer(59)operator(,)integer(1)operator(,)integer(61)operator(,)integer(5)operator(,)integer(73)operator(,)integer(6)operator(,)integer(76)operator(,)integer(28)operator(,)integer(56)operator(,)integer(21)operator(,)integer(68)operator(,)integer(29)operator(,)integer(78)operator(,)integer(29)operator(,)integer(63)operator(,)integer(5)operator(,)integer(66)operator(,)
+integer(28)operator(,)integer(90)operator(,)integer(29)operator(,) integer(71)operator(,)integer(4)operator(,)integer(55)operator(,)integer(9)operator(,)integer(84)operator(,)integer(28)operator(,)integer(82)operator(,)integer(29)operator(,)integer(101)operator(,)integer(5)operator(,) integer(103)operator(,)integer(9)operator(,) integer(98)operator(,)integer(35)operator(,)
+integer(97)operator(,)integer(1)operator(,)integer(94)operator(,)integer(35)operator(,)integer(93)operator(,)integer(1)operator(,)integer(100)operator(,)integer(35)operator(,)integer(92)operator(,)integer(31)operator(,)integer(99)operator(,)integer(5)operator(,)integer(96)operator(,)integer(39)operator(,)integer(95)operator(,)integer(5)operator(,)integer(102)operator(,)integer(35)operator(})operator(;)
+
+ident(void) ident(run)operator(()ident(int) ident(gun)operator(=)integer(0)operator(\)) operator({)        regexp<delimiter(/)delimiter(/)> operator([)ident(gun)operator(])operator(=)operator([)symbol(:GUN1)operator(,)symbol(:GUN2)operator(])
+        ident(printf)operator(()string<delimiter(")content(run(\) %i)char(\\n)delimiter(")>operator(,) ident(gun)operator(\))operator(;)
+        ident(switch)operator(()ident(gun)operator(\)) operator({)
+        reserved(case) constant(GUN1) reserved(when)operator(()integer(2)operator(\))
+                ident(printf)operator(()string<delimiter(")content(when2)char(\\n)delimiter(")>operator(\))operator(;)
+                reserved(break)operator(;) regexp<delimiter(/)delimiter(/)> reserved(end)
+        reserved(case) constant(GUN2) reserved(when)operator(()integer(3)operator(\))
+                ident(printf)operator(()string<delimiter(")content(when3)char(\\n)delimiter(")>operator(\))operator(;)
+                reserved(break)operator(;) regexp<delimiter(/)delimiter(/)> reserved(end)
+        operator(})
+operator(})
+
+ident(int) ident(main)operator(()ident(int) ident(argc)operator(,) ident(char)operator(**) ident(argv)operator(\)) operator({)
+        ident(printf)operator(()string<delimiter(")content(hello world.   number of arguments=%i)char(\\n)delimiter(")>operator(,) ident(argc)operator(\))operator(;)
+        ident(int) ident(fun)operator(=)integer(5)operator(;)
+        ident(bo) operator({)
+                ident(fun) operator(-=) integer(1)operator(;) regexp<delimiter(/)delimiter(/)>operator(.)ident(id) operator(-) ident(gun) operator(=) ident(fun)
+                ident(run)operator(()ident(fun)operator(\))operator(;)
+        operator(}) reserved(while)operator(()ident(fun)operator(>)integer(0)operator(\))operator(;)
+        ident(ruby_init)operator(()operator(\))operator(;)
+        ident(rb_eval_string)operator(()pre_constant(DATA)operator(\))operator(;)
+        reserved(return) integer(0)operator(;)
+operator(})
+
+comment(#if 0  // nobody reads un-defined code)
+reserved(def) method(goto)operator(*)ident(s)operator(;)global_variable($s)operator(=)operator([)operator(])operator(;)constant(Y)operator(.)ident(times)operator({)ident(s)operator(=)operator([)operator(])operator(;)constant(X)operator(.)ident(times)operator({)ident(s)operator(<<)operator([)integer(0)operator(])operator(*)integer(3)operator(})operator(;)global_variable($s)operator(<<) ident(s)operator(})reserved(end)operator(;)constant(A)operator(=)float(0.5)
+ident(include) constant(Math)operator(;)reserved(def) method(u) ident(g)operator(,)ident(h)operator(,)ident(i)operator(,)ident(j)operator(,)ident(k)operator(,)ident(l)operator(;)ident(f)operator(,)operator(*)ident(m)operator(=)operator(()operator(()ident(j)operator(-)ident(h)operator(\))operator(.)ident(abs)operator(>)operator(()ident(k)operator(-)ident(i)operator(\))operator(.)ident(abs)operator(\))operator(?)operator([)ident(proc)operator({)
+operator(|)ident(n)operator(,)ident(o)operator(|)      ident(g)operator([)ident(o)operator(])  operator([)ident(n)   operator(])operator(=)ident(l)      operator(})operator(,)operator([)ident(h)  operator(,)ident(i)   operator(])operator(,)operator([)ident(j)operator(,)ident(k)operator(])operator(])operator(:)operator([)ident(proc)operator({)
+operator(|)ident(p)operator(,)ident(q)operator(|)  ident(g)operator([)   ident(p)operator(])operator([)  ident(q)operator(])   operator(=)ident(l)operator(})  operator(,)operator([)   ident(i)operator(,)ident(h)  operator(])operator(,)   operator([)ident(k)operator(,)ident(j)operator(])operator(])operator(;)ident(b)operator(,)ident(a)operator(=)ident(m)operator(.)ident(sort)
+ident(c)operator(,)ident(d)operator(=)ident(a)  operator([)integer(1)   operator(])operator(-)ident(b)  operator([)integer(1)   operator(])operator(,)ident(a)  operator([)integer(0)   operator(])operator(-)ident(b)  operator([)integer(0)   operator(])operator(;)ident(d)operator(.)ident(times)operator({)operator(|)ident(e)operator(|)ident(f)operator(.)
+ident(call)operator(()      ident(e)operator(+)ident(b)operator([)  integer(0)operator(])   operator(,)ident(c)operator(*)      ident(e)operator(/)ident(d)operator(+)ident(b)     operator([)integer(1)operator(])operator(\))operator(})operator(;)reserved(end)operator(;)constant(V)operator(=)integer(0)operator(;)reserved(def) method(bo)operator(&)ident(u)
+global_variable($u)operator(||=)  constant(V)operator(;)   operator(;)global_variable($u)  operator(+=)   integer(1)operator(+)constant(V)  operator(;)operator(;)   reserved(return) ident(u)operator(.)ident(call) reserved(if)global_variable($u)operator(>)integer(1)operator(;)ident(q)operator(=)float(128.0)
+operator(;)ident(x)operator(=)operator(()constant(V)  operator(..)   integer(255)  operator(\))operator(.)   ident(map)  operator({)operator(|)   ident(y)operator(|)ident(f1)operator(,)ident(z) operator(=)ident(sin)operator(()ident(y)operator(.)ident(to_f)operator(*)constant(PI)operator(/)ident(q)operator(\))operator(,)
+ident(sin)operator(()operator(()  ident(y)operator(.)   ident(to_f)    operator(+) integer(200)      operator(\))operator(*)constant(PI)operator(/)operator(()   ident(q)operator(\))operator(\))operator(;)operator([)operator(()ident(f1)operator(*)float(30.0)float(+110.0)operator(\))operator(.)
+ident(to_i)operator(,)operator(()operator(()ident(f1)operator(+)ident(z)operator(\))operator(*)float(10.0)float(+40.0)operator(\))operator(.)ident(to_i)operator(,)operator(()ident(z)operator(*)float(20.0)float(+120.0)operator(\))operator(.)ident(to_i)operator(])operator(})operator(;)constant(Y)operator(.)ident(times)operator({)operator(|)ident(i)operator(|)constant(X)operator(.)
+ident(times)operator({)operator(|)ident(j)operator(|)ident(i1)operator(=)operator(()operator(()ident(i)operator(*)float(0.3)integer(+150)operator(\))operator(*)operator(()ident(j)operator(*)float(1.1)integer(+50)operator(\))operator(/)float(50.0)operator(\))operator(.)ident(to_i)operator(;)ident(i2)operator(=)operator(()operator(()ident(i)operator(*)float(0.8)integer(+510)operator(\))operator(*)operator(()
+ident(j)operator(*)float(0.9)integer(+1060)operator(\))operator(/)float(51.0)operator(\))operator(.)ident(to_i)operator(;)global_variable($s)operator([)ident(i)operator(])operator([)ident(j)operator(])operator(=)ident(x)operator([)operator(()ident(i1)operator(*)ident(i2)operator(\))operator(%)integer(255)operator(])operator(.)ident(clone)operator(})operator(})operator(;)global_variable($a)operator(=)operator(()integer(0)operator(..)integer(25)operator(\))operator(.)
+ident(inject)operator(()operator([)operator(])operator(\))operator({)operator(|)ident(a)operator(,)ident(i)operator(|)ident(a)operator(<<)operator(()constant(V)operator(..)integer(3)operator(\))operator(.)ident(inject)operator(()operator([)operator(])operator(\))operator({)operator(|)ident(r)operator(,)ident(j)operator(|)ident(r)operator(<<)global_variable($c)operator([)ident(i)operator(*)integer(4)operator(+)ident(j)operator(])operator(})operator(})operator(;)ident(u)operator(.)ident(call)operator(;)reserved(end)
+constant(I)operator(=)constant(LocalJumpError)operator(;)reserved(def) method(run)operator(*)ident(a)operator(,)operator(&)ident(b)operator(;)reserved(return) reserved(if) ident(a)operator(.)ident(size)operator(==)constant(V)operator(;)reserved(if) ident(a)operator([)constant(V)operator(])operator(==)integer(666)operator(;)global_variable($b)operator(=)ident(b)
+reserved(elsif)global_variable($b)operator(;)global_variable($b)operator(.)ident(call)operator(;)reserved(end)operator(;)reserved(end)operator(;)reserved(def) method(main) ident(s)operator(,)operator(&)ident(u)operator(;)global_variable($m)operator(=)constant(V)operator(;)ident(u)operator(.)ident(call) reserved(rescue) constant(I)operator(;)reserved(end)
+reserved(def) method(rb_eval_string)operator(()operator(*)ident(a)operator(\))operator(;)reserved(end)     comment(# you promised not to look here)
+reserved(def) method(ruby_init)operator(;)ident(q)operator(=)float(2.0)operator(;)ident(l)operator(=)operator(()operator(()constant(X)operator(**)ident(q)operator(\))operator(*)constant(A)operator(+)operator(()constant(Y)operator(**)ident(q)operator(\))operator(*)constant(A)operator(\))operator(**)constant(A)operator(;)constant(V)operator(.)ident(upto)operator(()constant(Y)integer(-4)operator(\))operator({)operator(|)ident(s)operator(|)constant(V)operator(.)
+ident(upto)operator(()constant(X)integer(-4)operator(\))operator({)operator(|)ident(q)operator(|)ident(d)operator(=)operator(()operator(()ident(q)operator(-)constant(X)operator(/)constant(A)operator(\))operator(**)ident(q)operator(+)operator(()ident(s)operator(-)constant(Y)operator(/)constant(A)operator(\))operator(**)ident(q)operator(\))operator(**)constant(A)operator(;)ident(e)operator(=)operator(()ident(cos)operator(()ident(d)operator(*)constant(PI)operator(/)operator(()ident(l)operator(/)ident(q)operator(\))operator(\))operator(/)ident(q)
+operator(+)constant(A)operator(\))operator(*)float(3.0)float(+1.0)operator(;)ident(v)operator(=)integer(2)operator(;)ident(f)operator(=)ident(v)operator(/)ident(e)operator(;)ident(a)operator(,)ident(p)operator(,)ident(b)operator(=)global_variable($s)operator([)ident(s)operator(])operator(,)global_variable($s)operator([)ident(s)integer(+1)operator(])operator(,)global_variable($s)operator([)ident(s)operator(+)ident(v)operator(])operator(;)ident(r)operator(=)ident(a)operator([)ident(q)operator(])operator([)constant(V)operator(])operator(*)ident(e)operator(+)
+ident(p)operator([)ident(q)operator(])operator([)constant(V)operator(])operator(+)ident(a)operator([)ident(q)integer(+1)operator(])operator([)constant(V)operator(])operator(+)ident(b)operator([)ident(q)operator(])operator([)constant(V)operator(])operator(+)ident(a)operator([)ident(q)operator(+)ident(v)operator(])operator([)constant(V)operator(])operator(+)ident(b)operator([)ident(q)operator(+)ident(v)operator(/)ident(v)operator(])operator([)constant(V)operator(])operator(+)ident(p)operator([)ident(q)operator(+)ident(v)operator(])operator([)constant(V)operator(])operator(+)ident(b)operator([)ident(q)operator(+)
+ident(v)operator(])operator([)constant(V)operator(])operator(*)ident(f)operator(;)ident(g)operator(=)operator([)ident(a)operator([)ident(q)operator(])operator([)constant(V)operator(])operator(,)ident(b)operator([)ident(q)operator(])operator([)constant(V)operator(])operator(,)ident(a)operator([)ident(q)operator(+)ident(v)operator(])operator([)constant(V)operator(])operator(,)ident(b)operator([)ident(q)operator(+)ident(v)operator(])operator([)constant(V)operator(])operator(])operator(;)ident(h)operator(=)operator(()ident(g)operator(.)ident(max)operator(-)ident(g)operator(.)ident(min)
+operator(\))operator(*)ident(f)operator(;)global_variable($s)operator([)ident(s)operator(])operator([)ident(q)operator(])operator([)constant(V)operator(])operator(=)operator([)operator([)operator(()ident(r)operator(/)operator(()ident(e)operator(+)ident(f)float(+6.0)operator(\))operator(+)constant(A)operator(+)operator(()ident(h)operator(*)float(0.4)operator(\))operator(\))operator(.)ident(to_i)operator(,)integer(255)operator(])operator(.)ident(min)operator(,)constant(V)operator(])operator(.)ident(max)
+operator(})operator(})operator(;)constant(File)operator(.)ident(open)operator(()string<delimiter(")content(res.ppm)delimiter(")>operator(,)string<delimiter(")content(w+)delimiter(")>operator(\))operator({)operator(|)ident(f)operator(|)ident(f)operator(.)ident(write)operator(()comment(# secret.greetings :-\))
+string<delimiter(")content(P3)char(\\n)content(# res.ppm)char(\\n)inline<delimiter(#{)constant(X)delimiter(})>content( )inline<delimiter(#{)constant(Y)delimiter(})>char(\\n)content(255)char(\\n)delimiter(")>operator(+)global_variable($s)operator(.)ident(map)operator({)operator(|)ident(a)operator(|)ident(a)operator(.)ident(map)operator({)operator(|)ident(b)operator(|)ident(b)operator(.)ident(join)string<delimiter(')content( )delimiter(')>
+operator(})operator(.)ident(join)operator(()string<delimiter(')content( )delimiter(')>operator(\))operator(+)string<delimiter(")char(\\n)delimiter(")>operator(})operator(.)ident(join)operator(\))operator(})operator(;)reserved(end)operator(;)reserved(def) method(switch) ident(i)operator(,)operator(&)ident(b)operator(;)ident(b)operator(.)ident(call)operator(;)reserved(return) reserved(unless)
+reserved(defined?)operator(()global_variable($m)operator(\))operator(;)ident(b)operator(=)operator(()constant(X)operator(*)float(0.01)operator(\))operator(.)ident(to_i)operator(;)ident(d)operator(=)float(1.0)operator(/)float(40.0)operator(;)ident(e)operator(=)float(0.09)operator(;)ident(c)operator(=)operator(()constant(Y)operator(*)float(0.01)operator(\))operator(.)ident(to_i)
+ident(a)operator(=)global_variable($a)operator(.)ident(map)operator({)operator(|)operator(()ident(f)operator(,)ident(g)operator(,)ident(h)operator(,)ident(j)operator(\))operator(|)operator([)ident(f)operator(*)ident(d)operator(,)ident(g)operator(*)ident(e)operator(,)ident(h)operator(*)ident(d)operator(,)ident(j)operator(*)ident(e)operator(])operator(})operator(;)ident(a)operator(.)ident(each)operator({)operator(|)operator(()ident(k)operator(,)ident(l)operator(,)ident(m)operator(,)ident(n)operator(\))operator(|)ident(u)operator(()global_variable($s)operator(,)operator(()ident(k)operator(*)constant(X)
+operator(\))operator(.)ident(to_i)operator(+)ident(b)operator(+)ident(i)operator(,)operator(()ident(l)operator(*)constant(Y)operator(\))operator(.)ident(to_i)operator(+)ident(c)operator(+)ident(i)operator(,)operator(()ident(m)operator(*)constant(X)operator(\))operator(.)ident(to_i)operator(+)ident(b)operator(+)ident(i)operator(,)operator(()ident(n)operator(*)constant(Y)operator(\))operator(.)ident(to_i)operator(+)ident(c)operator(+)ident(i)operator(,)operator([)constant(Z)operator(])operator(*)integer(3)operator(\))operator(})
+ident(a)operator(.)ident(each)operator({)operator(|)operator(()ident(o)operator(,)ident(q)operator(,)ident(r)operator(,)ident(s)operator(\))operator(|)ident(u)operator(()global_variable($s)operator(,)operator(()ident(o)operator(*)operator(()constant(X)operator(-)constant(Z)operator(\))operator(\))operator(.)ident(to_i)operator(+)ident(i)operator(,)operator(()ident(q)operator(*)operator(()constant(Y)operator(-)constant(Z)operator(\))operator(\))operator(.)ident(to_i)operator(+)ident(i)operator(,)operator(()ident(r)operator(*)operator(()constant(X)operator(-)
+constant(Z)operator(\))operator(\))operator(.)ident(to_i)operator(+)ident(i)operator(,)operator(()ident(s)operator(*)operator(()constant(Y)operator(-)constant(Z)operator(\))operator(\))operator(.)ident(to_i)operator(+)ident(i)operator(,)operator([)operator(()integer(1)operator(<<)integer(8)operator(\))integer(-1)operator(])operator(*)integer(3)operator(\))operator(})operator(;)reserved(end)operator(;)constant(Q)operator(=)constant(Object)operator(;)reserved(class)
+class(Regexp)operator(;)reserved(def) method([]=)operator(()ident(v)operator(,)ident(is)operator(\))operator(;)ident(is)operator(.)ident(each)operator({)operator(|)ident(s)operator(|)constant(Q)operator(.)ident(send)operator(()symbol(:remove_const)operator(,)ident(s)operator(\))reserved(if) constant(Q)operator(.)
+ident(const_defined?) ident(s)operator(;)constant(Q)operator(.)ident(const_set)operator(()ident(s)operator(,)ident(v)operator(\))operator(})operator(;)reserved(end)operator(;)reserved(end)operator(;)reserved(def) method(int)operator(*)ident(ptr)operator(;)integer(666)
+reserved(end)operator(;)reserved(class) class(O)operator(;)reserved(def) method([]=)operator(()ident(a)operator(,)ident(b)operator(=)pre_constant(nil)operator(\))operator(;)global_variable($c)operator(=)ident(a)operator(;)reserved(end)operator(;)reserved(end)operator(;)reserved(alias)symbol(:void)symbol(:goto)
+comment(#endif // pretend as if you havn't seen anything)
+operator(=)reserved(end)
+
diff --git a/test/scanners/ruby/suite.rb b/test/scanners/ruby/suite.rb
new file mode 100644
index 0000000..c56b3bd
--- /dev/null
+++ b/test/scanners/ruby/suite.rb
@@ -0,0 +1,3 @@
+class Ruby < CodeRay::TestCase
+  extension :rb
+end
diff --git a/test/scanners/ruby/test-fitter.in.rb b/test/scanners/ruby/test-fitter.in.rb
new file mode 100644
index 0000000..7d00da6
--- /dev/null
+++ b/test/scanners/ruby/test-fitter.in.rb
@@ -0,0 +1,45 @@
+require 'benchmark'
+require 'fits'
+
+N = 100_000
+
+def test s
+  puts s
+  Benchmark.bm 10 do |bm|
+    bm.report 'default' do
+      N.times { s =~ /\A\w+\z/ }
+    end
+
+    bm.report 'fits?' do
+      N.times { s.fits? /\w+/ }
+    end
+
+    bm.report 'f' do
+      N.times { s =~ /\w+/.f }
+    end
+   
+    re = /\w+/.f
+
+    bm.report 'preparsed' do
+      N.times { s =~ re }
+    end
+  end
+  puts
+end
+
+a.fits? / bla /x
+
+test 'harmlessline'
+
+test <<EOL
+<div style=\"font-size:2px\">Destroy my HTML!
+harmlessline
+EOL
+
+test <<EOL
+harmlessline
+harmlesslineharmlessline
+<div style=\"font-size:2px\">Destroy my HTML!
+harmlessline
+EOL
+
diff --git a/test/scanners/ruby/test-fitter.out.raydebug b/test/scanners/ruby/test-fitter.out.raydebug
new file mode 100644
index 0000000..da35d8d
--- /dev/null
+++ b/test/scanners/ruby/test-fitter.out.raydebug
@@ -0,0 +1,46 @@
+ident(require) string<delimiter(')content(benchmark)delimiter(')>
+ident(require) string<delimiter(')content(fits)delimiter(')>
+
+constant(N) operator(=) integer(100_000)
+
+reserved(def) method(test) ident(s)
+  ident(puts) ident(s)
+  constant(Benchmark)operator(.)ident(bm) integer(10) reserved(do) operator(|)ident(bm)operator(|)
+    ident(bm)operator(.)ident(report) string<delimiter(')content(default)delimiter(')> reserved(do)
+      constant(N)operator(.)ident(times) operator({) ident(s) operator(=)operator(~) regexp<delimiter(/)char(\\A)char(\\w)content(+)char(\\z)delimiter(/)> operator(})
+    reserved(end)
+
+    ident(bm)operator(.)ident(report) string<delimiter(')content(fits?)delimiter(')> reserved(do)
+      constant(N)operator(.)ident(times) operator({) ident(s)operator(.)ident(fits?) regexp<delimiter(/)char(\\w)content(+)delimiter(/)> operator(})
+    reserved(end)
+
+    ident(bm)operator(.)ident(report) string<delimiter(')content(f)delimiter(')> reserved(do)
+      constant(N)operator(.)ident(times) operator({) ident(s) operator(=)operator(~) regexp<delimiter(/)char(\\w)content(+)delimiter(/)>operator(.)ident(f) operator(})
+    reserved(end)
+   
+    ident(re) operator(=) regexp<delimiter(/)char(\\w)content(+)delimiter(/)>operator(.)ident(f)
+
+    ident(bm)operator(.)ident(report) string<delimiter(')content(preparsed)delimiter(')> reserved(do)
+      constant(N)operator(.)ident(times) operator({) ident(s) operator(=)operator(~) ident(re) operator(})
+    reserved(end)
+  reserved(end)
+  ident(puts)
+reserved(end)
+
+ident(a)operator(.)ident(fits?) operator(/) ident(bla) regexp<delimiter(/)content(x
+
+test 'harmlessline'
+
+test <<EOL
+<div style=)char(\\")content(font-size:2px)char(\\")content(>Destroy my HTML!
+harmlessline
+EOL
+
+test <<EOL
+harmlessline
+harmlesslineharmlessline
+<div style=)char(\\")content(font-size:2px)char(\\")content(>Destroy my HTML!
+harmlessline
+EOL
+
+)>
+\ No newline at end of file
diff --git a/test/scanners/ruby/tk-calc.in.rb b/test/scanners/ruby/tk-calc.in.rb
new file mode 100644
index 0000000..76272da
--- /dev/null
+++ b/test/scanners/ruby/tk-calc.in.rb
@@ -0,0 +1,5 @@
+require 'tk';TkRoot.new;r,c,b=1,1,%w#7 8 9 + 4 5 6 - 1 2 3 * 0 . /#;d=TkEntry.new{
+grid("row"=>0,"column"=>1,"columnspan"=>4)};b.each_index{|i|TkButton.new{text b[i]
+command proc{d.insert("end",b[i])};grid("row"=>r,"column"=>c)};c+=1;if i&&(i+1)%##
+4==0then r+=1;c=1 end};TkButton.new{text"=";command proc{t=d.get;d.delete(0,"end")
+d.insert("end",eval(t))};grid("row"=>r,"column"=>c)};Tk.mainloop### by mawe :) ###
diff --git a/test/scanners/ruby/tk-calc.out.raydebug b/test/scanners/ruby/tk-calc.out.raydebug
new file mode 100644
index 0000000..4bd4db0
--- /dev/null
+++ b/test/scanners/ruby/tk-calc.out.raydebug
@@ -0,0 +1,5 @@
+ident(require) string<delimiter(')content(tk)delimiter(')>operator(;)constant(TkRoot)operator(.)ident(new)operator(;)ident(r)operator(,)ident(c)operator(,)ident(b)operator(=)integer(1)operator(,)integer(1)operator(,)string<delimiter(%w#)content(7 8 9 + 4 5 6 - 1 2 3 * 0 . /)delimiter(#)>operator(;)ident(d)operator(=)constant(TkEntry)operator(.)ident(new)operator({)
+ident(grid)operator(()string<delimiter(")content(row)delimiter(")>operator(=)operator(>)integer(0)operator(,)string<delimiter(")content(column)delimiter(")>operator(=)operator(>)integer(1)operator(,)string<delimiter(")content(columnspan)delimiter(")>operator(=)operator(>)integer(4)operator(\))operator(})operator(;)ident(b)operator(.)ident(each_index)operator({)operator(|)ident(i)operator(|)constant(TkButton)operator(.)ident(new)operator({)ident(text) ident(b)operator([)ident(i)operator(])
+ident(command) ident(proc)operator({)ident(d)operator(.)ident(insert)operator(()string<delimiter(")content(end)delimiter(")>operator(,)ident(b)operator([)ident(i)operator(])operator(\))operator(})operator(;)ident(grid)operator(()string<delimiter(")content(row)delimiter(")>operator(=)operator(>)ident(r)operator(,)string<delimiter(")content(column)delimiter(")>operator(=)operator(>)ident(c)operator(\))operator(})operator(;)ident(c)operator(+=)integer(1)operator(;)reserved(if) ident(i)operator(&&)operator(()ident(i)integer(+1)operator(\))operator(%)comment(##)
+integer(4)operator(==)integer(0)reserved(then) ident(r)operator(+=)integer(1)operator(;)ident(c)operator(=)integer(1) reserved(end)operator(})operator(;)constant(TkButton)operator(.)ident(new)operator({)ident(text)string<delimiter(")content(=)delimiter(")>operator(;)ident(command) ident(proc)operator({)ident(t)operator(=)ident(d)operator(.)ident(get)operator(;)ident(d)operator(.)ident(delete)operator(()integer(0)operator(,)string<delimiter(")content(end)delimiter(")>operator(\))
+ident(d)operator(.)ident(insert)operator(()string<delimiter(")content(end)delimiter(")>operator(,)ident(eval)operator(()ident(t)operator(\))operator(\))operator(})operator(;)ident(grid)operator(()string<delimiter(")content(row)delimiter(")>operator(=)operator(>)ident(r)operator(,)string<delimiter(")content(column)delimiter(")>operator(=)operator(>)ident(c)operator(\))operator(})operator(;)constant(Tk)operator(.)ident(mainloop)comment(### by mawe :\) ###)
diff --git a/test/scanners/ruby/undef.in.rb b/test/scanners/ruby/undef.in.rb
new file mode 100644
index 0000000..795483d
--- /dev/null
+++ b/test/scanners/ruby/undef.in.rb
@@ -0,0 +1,18 @@
+undef /
+undef ,
+undef --
+
+undef
+# bla
+[]=
+
+undef undef
+undef /,/,:/
+
+undef &,&&
+
+:simple
+:"bla"
+:"#{undef :blubb}#@@cv"
+
+undef :"bla", /, :"#{undef :blubb}#@@cv"
diff --git a/test/scanners/ruby/undef.out.raydebug b/test/scanners/ruby/undef.out.raydebug
new file mode 100644
index 0000000..e306858
--- /dev/null
+++ b/test/scanners/ruby/undef.out.raydebug
@@ -0,0 +1,18 @@
+reserved(undef) method(/)
+reserved(undef) operator(,)
+reserved(undef) method(-)operator(-)
+
+reserved(undef)
+comment(# bla)
+method([]=)
+
+reserved(undef) method(undef)
+reserved(undef) method(/)operator(,)method(/)operator(,)symbol(:/)
+
+reserved(undef) method(&)operator(,)method(&)operator(&)
+
+symbol(:simple)
+symbol<symbol(:)delimiter(")content(bla)delimiter(")>
+symbol<symbol(:)delimiter(")inline<delimiter(#{)reserved(undef) symbol(:blubb)delimiter(})>escape(#)class_variable(@@cv)delimiter(")>
+
+reserved(undef) symbol<symbol(:)delimiter(")content(bla)delimiter(")>operator(,) method(/)operator(,) symbol<symbol(:)delimiter(")inline<delimiter(#{)reserved(undef) symbol(:blubb)delimiter(})>escape(#)class_variable(@@cv)delimiter(")>
diff --git a/test/scanners/ruby/zero.in.rb b/test/scanners/ruby/zero.in.rb
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test/scanners/ruby/zero.in.rb
diff --git a/test/scanners/ruby/zero.out.raydebug b/test/scanners/ruby/zero.out.raydebug
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test/scanners/ruby/zero.out.raydebug