62 lines
1.3 KiB
Ruby
Executable File
62 lines
1.3 KiB
Ruby
Executable File
# $Id$
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def main
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template, ids1, ids2 = *ARGV
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print <<header
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#
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# This file is automatically generated from #{File.basename(template)} and parse.y.
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# DO NOT MODIFY!!!!!!
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#
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header
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File.foreach(template) do |line|
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case line
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when /\A\#include ids1/
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print_items read_ids(ids1)
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when /\A\#include ids2/
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print_items read_ids(ids2)
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when /\A\#include handlers1/
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File.foreach(ids1) do |line|
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id, arity = line.split
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arity = arity.to_i
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puts
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puts " def on__#{id}#{paramdecl(arity)}"
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puts " #{arity == 0 ? 'nil' : 'a'}"
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puts " end"
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end
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when /\A\#include handlers2/
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File.foreach(ids2) do |line|
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id, arity = line.split
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arity = arity.to_i
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puts
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puts " def on__#{id}(token)"
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puts " token"
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puts " end"
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end
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when /\A\#include (.*)/
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raise "unknown operation: #include #{$1}"
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else
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print line
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end
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end
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end
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def print_items(ids)
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comma = ''
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ids.each do |id, arity|
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print comma; comma = ",\n"
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print " #{id.intern.inspect} => #{arity}"
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end
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puts
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end
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def read_ids(path)
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File.readlines(path).map {|line| line.split }
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end
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def paramdecl(n)
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return '' if n == 0
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'(' + %w(a b c d e f g h i j k l m)[0, n].join(', ') + ')'
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end
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main
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