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module CodeRay
module Encoders
# = Debug Encoder
#
# Fast encoder producing simple debug output.
#
# It is readable and diff-able and is used for testing.
#
# You cannot fully restore the tokens information from the
# output, because consecutive :space tokens are merged.
# Use Tokens#dump for caching purposes.
#
# See also: Scanners::Debug
class Debug < Encoder
register_for :debug
FILE_EXTENSION = 'raydebug'
def initialize options = {}
super
@opened = []
end
def text_token text, kind
raise 'empty token' if $CODERAY_DEBUG && text.empty?
if kind == :space
@out << text
else
text = text.gsub('\\', '\\\\\\\\') if text.index('\\')
text = text.gsub(')', '\\\\)') if text.index(')')
@out << "#{kind}(#{text})"
end
end
def begin_group kind
@opened << kind if $CODERAY_DEBUG
@out << "#{kind}<"
end
def end_group kind
raise "We are inside #{@opened.inspect}, not #{kind}" if $CODERAY_DEBUG && @opened.pop != kind
@out << '>'
end
def begin_line kind
@opened << kind if $CODERAY_DEBUG
@out << "#{kind}["
end
def end_line kind
raise "We are inside #{@opened.inspect}, not #{kind}" if $CODERAY_DEBUG && @opened.pop != kind
@out << ']'
end
end
end
end
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