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