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#
# ripper/tokenizer.rb
#
# Copyright (C) 2004 Minero Aoki
#
# This program is free software.
# You can distribute and/or modify this program under the Ruby License.
# For details of Ruby License, see ruby/COPYING.
#
require 'ripper'
class Ripper
def Ripper.tokenize(str)
Tokenizer.tokenize(str)
end
class Tokenizer < ::Ripper
def Tokenizer.tokenize(str, filename = '-', lineno = 1)
new(str, filename, lineno).tokenize
end
def initialize(src, filename = '-', lineno = 1)
@src = src
@__filename = filename
@__linestart = lineno
@__line = nil
@__col = nil
end
def filename
@__filename
end
def lineno
@__line
end
def column
@__col
end
def tokenize
_exec_tokenizer().map {|pos, event, tok| tok }
end
def parse
_exec_tokenizer().each do |pos, event, tok|
@__line, @__col = *pos
on__scan(event, tok)
__send__(event, tok)
end
end
private
def _exec_tokenizer
TokenSorter.new(@src, @__filename, @__linestart).parse
end
end
class TokenSorter < ::Ripper #:nodoc: internal use only
def parse
@data = []
super
@data.sort_by {|pos, event, tok| pos }
end
private
def on__scan(event, tok)
@data.push [[lineno(),column()], event, tok]
end
end
end
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