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#! /your/favourite/path/to/ruby
# -*- mode: ruby; coding: utf-8; indent-tabs-mode: nil; ruby-indent-level: 2 -*-
# -*- frozen_string_literal: true; -*-
# -*- warn_indent: true; -*-
#
# Copyright (c) 2017 Urabe, Shyouhei. All rights reserved.
#
# This file is a part of the programming language Ruby. Permission is hereby
# granted, to either redistribute and/or modify this file, provided that the
# conditions mentioned in the file COPYING are met. Consult the file for
# details.
require_relative '../helpers/scanner'
json = []
scanner = RubyVM::Scanner.new '../../../defs/opt_operand.def'
path = scanner.__FILE__
grammer = %r/
(?<comment> \# .+? \n ){0}
(?<ws> \g<comment> | \s ){0}
(?<insn> \w+ ){0}
(?<paren> \( (?: \g<paren> | [^()]+)* \) ){0}
(?<expr> (?: \g<paren> | [^(),\ \n] )+ ){0}
(?<remain> \g<expr> ){0}
(?<arg> \g<expr> ){0}
(?<extra> , \g<ws>* \g<remain> ){0}
(?<args> \g<arg> \g<extra>* ){0}
(?<decl> \g<insn> \g<ws>+ \g<args> \n ){0}
/mx
until scanner.eos? do
break if scanner.scan(/ ^ __END__ $ /x)
next if scanner.scan(/#{grammer} \g<ws>+ /ox)
line = scanner.scan!(/#{grammer} \g<decl> /mox)
insn = scanner["insn"]
args = scanner["args"]
ary = []
until args.strip.empty? do
tmp = StringScanner.new args
tmp.scan(/#{grammer} \g<args> /mox)
ary << tmp["arg"]
args = tmp["remain"]
break unless args
end
json << {
location: [path, line],
signature: [insn, ary]
}
end
RubyVM::OptOperandDef = json
if __FILE__ == $0 then
require 'json'
JSON.dump RubyVM::OptOperandDef, STDOUT
end
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