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#
# ripper/filter.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
class Filter
def initialize(src, filename = '-', lineno = 1)
@__parser = Tokenizer.new(src, filename, lineno)
@__line = nil
@__col = nil
end
def filename
@__parser.filename
end
def lineno
@__line
end
def column
@__col
end
def parse(init)
data = init
@__parser.parse.each do |pos, event, tok|
@__line, @__col = *pos
data = if respond_to?(event, true)
then __send__(event, tok, data)
else on_default(event, tok, data)
end
end
data
end
private
def on_default(event, tok, data)
data
end
end
end
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