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module CodeRay
module Scanners
# = Debug Scanner
#
# Parses the output of the Encoders::Debug encoder.
class Raydebug < Scanner
register_for :raydebug
file_extension 'raydebug'
title 'CodeRay Token Dump'
protected
def scan_tokens encoder, options
opened_tokens = []
until eos?
if match = scan(/\s+/)
encoder.text_token match, :space
elsif match = scan(/ (\w+) \( ( [^\)\\]* ( \\. [^\)\\]* )* ) /x)
kind = self[1]
encoder.text_token kind, :class
encoder.text_token '(', :operator
match = self[2]
encoder.text_token match, kind.to_sym
encoder.text_token match, :operator if match = scan(/\)/)
elsif match = scan(/ (\w+) ([<\[]) /x)
kind = self[1]
case self[2]
when '<'
encoder.text_token kind, :class
when '['
encoder.text_token kind, :class
else
raise 'CodeRay bug: This case should not be reached.'
end
kind = kind.to_sym
opened_tokens << kind
encoder.begin_group kind
encoder.text_token self[2], :operator
elsif !opened_tokens.empty? && match = scan(/ [>\]] /x)
encoder.text_token match, :operator
encoder.end_group opened_tokens.pop
else
encoder.text_token getch, :space
end
end
encoder.end_group opened_tokens.pop until opened_tokens.empty?
encoder
end
end
end
end
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