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#! /your/favourite/path/to/ruby
# -*- Ruby -*-
# -*- 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 '../../../vm_opts.h'
grammar = %r/
(?<ws> \u0020 ){0}
(?<key> \w+ ){0}
(?<value> 0|1 ){0}
(?<define> \G \#define \g<ws>+ OPT_\g<key> \g<ws>+ \g<value> \g<ws>*\n )
/mx
until scanner.eos? do
if scanner.scan grammar then
json[scanner['key']] = ! scanner['value'].to_i.zero? # not nonzero?
else
scanner.scan(/\G.*\n/)
end
end
RubyVM::VmOptsH = json
if __FILE__ == $0 then
require 'json'
JSON.dump RubyVM::VmOptsH, STDOUT
end
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