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|
module CodeRay
module Encoders
class HTML
module Output
def numerize *args
clone.numerize!(*args)
end
=begin NUMERIZABLE_WRAPPINGS = {
:table => [:div, :page, nil],
:inline => :all,
:list => [:div, :page, nil]
}
NUMERIZABLE_WRAPPINGS.default = :all
=end
def numerize! mode = :table, options = {}
return self unless mode
options = DEFAULT_OPTIONS.merge options
start = options[:line_number_start]
unless start.is_a? Integer
raise ArgumentError, "Invalid value %p for :line_number_start; Integer expected." % start
end
#allowed_wrappings = NUMERIZABLE_WRAPPINGS[mode]
#unless allowed_wrappings == :all or allowed_wrappings.include? options[:wrap]
# raise ArgumentError, "Can't numerize, :wrap must be in %p, but is %p" % [NUMERIZABLE_WRAPPINGS, options[:wrap]]
#end
bold_every = options[:bold_every]
bolding =
if bold_every == false
proc { |line| line.to_s }
elsif bold_every.is_a? Integer
raise ArgumentError, ":bolding can't be 0." if bold_every == 0
proc do |line|
if line % bold_every == 0
"<strong>#{line}</strong>" # every bold_every-th number in bold
else
line.to_s
end
end
else
raise ArgumentError, 'Invalid value %p for :bolding; false or Integer expected.' % bold_every
end
case mode
when :inline
max_width = (start + line_count).to_s.size
line = start
gsub!(/^/) do
line_number = bolding.call line
indent = ' ' * (max_width - line.to_s.size)
res = "<span class=\"no\">#{indent}#{line_number}</span> "
line += 1
res
end
when :table
# This is really ugly.
# Because even monospace fonts seem to have different heights when bold,
# I make the newline bold, both in the code and the line numbers.
# FIXME Still not working perfect for Mr. Internet Exploder
# FIXME Firefox struggles with very long codes (> 200 lines)
line_numbers = (start ... start + line_count).to_a.map(&bolding).join("\n")
line_numbers << "\n" # also for Mr. MS Internet Exploder :-/
line_numbers.gsub!(/\n/) { "<tt>\n</tt>" }
line_numbers_table_tpl = TABLE.apply('LINE_NUMBERS', line_numbers)
gsub!(/\n/) { "<tt>\n</tt>" }
wrap_in! line_numbers_table_tpl
@wrapped_in = :div
when :list
opened_tags = []
gsub!(/^.*$\n?/) do |line|
line.chomp!
open = opened_tags.join
line.scan(%r!<(/)?span[^>]*>?!) do |close,|
if close
opened_tags.pop
else
opened_tags << $&
end
end
close = '</span>' * opened_tags.size
"<li>#{open}#{line}#{close}</li>"
end
wrap_in! LIST
@wrapped_in = :div
else
raise ArgumentError, 'Unknown value %p for mode: expected one of %p' %
[mode, [:table, :list, :inline]]
end
self
end
def line_count
line_count = count("\n")
position_of_last_newline = rindex(?\n)
if position_of_last_newline
after_last_newline = self[position_of_last_newline + 1 .. -1]
ends_with_newline = after_last_newline[/\A(?:<\/span>)*\z/]
line_count += 1 if not ends_with_newline
end
line_count
end
end
end
end
end
|
