2018-01-12 03:38:09 -05:00
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#! /your/favourite/path/to/ruby
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# -*- mode: ruby; coding: utf-8; indent-tabs-mode: nil; ruby-indent-level: 2 -*-
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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 'securerandom'
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module RubyVM::CEscape
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module_function
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# generate comment, with escaps.
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def commentify str
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return "/* #{str.strip.b.gsub '*/', '*\\/'} */"
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end
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# Mimic gensym of CL.
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def gensym prefix = 'gensym_'
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return as_tr_cpp "#{prefix}#{SecureRandom.uuid}"
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end
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# Mimic AS_TR_CPP() of autoconf.
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def as_tr_cpp name
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q = name.b
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q.gsub! %r/[^a-zA-Z0-9_]/m, '_'
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q.gsub! %r/_+/, '_'
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return q
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end
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# Section 6.10.4 of ISO/IEC 9899:1999 specifies that the file name used for
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# #line directive shall be a "character string literal". So this is needed.
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#
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# I'm not sure how many chars are allowed here, though. The standard
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# specifies 4095 chars at most, after string concatenation (section 5.2.4.1).
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# But it is easy to have a path that is longer than that.
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#
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# Here we ignore the standard. Just create single string literal of any
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# needed length.
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def rstring2cstr str
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# I believe this is the fastest implementation done in pure-ruby.
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# Constants cached, gsub skips block evaluation, string literal optimized.
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buf = str.b
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buf.gsub! %r/./n, RString2CStr
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return %'"#{buf}"'
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end
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RString2CStr = {
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"\x00"=> "\\0", "\x01"=> "\\x1", "\x02"=> "\\x2", "\x03"=> "\\x3",
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"\x04"=> "\\x4", "\x05"=> "\\x5", "\x06"=> "\\x6", "\a"=> "\\a",
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"\b"=> "\\b", "\t"=> "\\t", "\n"=> "\\n", "\v"=> "\\v",
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"\f"=> "\\f", "\r"=> "\\r", "\x0E"=> "\\xe", "\x0F"=> "\\xf",
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"\x10"=>"\\x10", "\x11"=>"\\x11", "\x12"=>"\\x12", "\x13"=>"\\x13",
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"\x14"=>"\\x14", "\x15"=>"\\x15", "\x16"=>"\\x16", "\x17"=>"\\x17",
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"\x18"=>"\\x18", "\x19"=>"\\x19", "\x1A"=>"\\x1a", "\e"=>"\\x1b",
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"\x1C"=>"\\x1c", "\x1D"=>"\\x1d", "\x1E"=>"\\x1e", "\x1F"=>"\\x1f",
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" "=> " ", "!"=> "!", "\""=> "\\\"", "#"=> "#",
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"$"=> "$", "%"=> "%", "&"=> "&", "'"=> "\\'",
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"("=> "(", ")"=> ")", "*"=> "*", "+"=> "+",
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","=> ",", "-"=> "-", "."=> ".", "/"=> "/",
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"0"=> "0", "1"=> "1", "2"=> "2", "3"=> "3",
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"4"=> "4", "5"=> "5", "6"=> "6", "7"=> "7",
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"8"=> "8", "9"=> "9", ":"=> ":", ";"=> ";",
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"<"=> "<", "="=> "=", ">"=> ">", "?"=> "?",
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"@"=> "@", "A"=> "A", "B"=> "B", "C"=> "C",
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"D"=> "D", "E"=> "E", "F"=> "F", "G"=> "G",
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"H"=> "H", "I"=> "I", "J"=> "J", "K"=> "K",
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"L"=> "L", "M"=> "M", "N"=> "N", "O"=> "O",
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"P"=> "P", "Q"=> "Q", "R"=> "R", "S"=> "S",
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"T"=> "T", "U"=> "U", "V"=> "V", "W"=> "W",
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"X"=> "X", "Y"=> "Y", "Z"=> "Z", "["=> "[",
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"\\"=> "\\\\", "]"=> "]", "^"=> "^", "_"=> "_",
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"`"=> "`", "a"=> "a", "b"=> "b", "c"=> "c",
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"d"=> "d", "e"=> "e", "f"=> "f", "g"=> "g",
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"h"=> "h", "i"=> "i", "j"=> "j", "k"=> "k",
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"l"=> "l", "m"=> "m", "n"=> "n", "o"=> "o",
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"p"=> "p", "q"=> "q", "r"=> "r", "s"=> "s",
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"t"=> "t", "u"=> "u", "v"=> "v", "w"=> "w",
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"x"=> "x", "y"=> "y", "z"=> "z", "{"=> "{",
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"|"=> "|", "}"=> "}", "~"=> "~", "\x7F"=>"\\x7f",
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"\x80"=>"\\x80", "\x81"=>"\\x81", "\x82"=>"\\x82", "\x83"=>"\\x83",
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"\x84"=>"\\x84", "\x85"=>"\\x85", "\x86"=>"\\x86", "\x87"=>"\\x87",
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"\x88"=>"\\x88", "\x89"=>"\\x89", "\x8A"=>"\\x8a", "\x8B"=>"\\x8b",
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"\x8C"=>"\\x8c", "\x8D"=>"\\x8d", "\x8E"=>"\\x8e", "\x8F"=>"\\x8f",
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"\x90"=>"\\x90", "\x91"=>"\\x91", "\x92"=>"\\x92", "\x93"=>"\\x93",
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"\x94"=>"\\x94", "\x95"=>"\\x95", "\x96"=>"\\x96", "\x97"=>"\\x97",
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"\x98"=>"\\x98", "\x99"=>"\\x99", "\x9A"=>"\\x9a", "\x9B"=>"\\x9b",
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"\x9C"=>"\\x9c", "\x9D"=>"\\x9d", "\x9E"=>"\\x9e", "\x9F"=>"\\x9f",
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"\xA0"=>"\\xa0", "\xA1"=>"\\xa1", "\xA2"=>"\\xa2", "\xA3"=>"\\xa3",
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"\xA4"=>"\\xa4", "\xA5"=>"\\xa5", "\xA6"=>"\\xa6", "\xA7"=>"\\xa7",
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"\xA8"=>"\\xa8", "\xA9"=>"\\xa9", "\xAA"=>"\\xaa", "\xAB"=>"\\xab",
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"\xAC"=>"\\xac", "\xAD"=>"\\xad", "\xAE"=>"\\xae", "\xAF"=>"\\xaf",
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"\xB0"=>"\\xb0", "\xB1"=>"\\xb1", "\xB2"=>"\\xb2", "\xB3"=>"\\xb3",
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"\xB4"=>"\\xb4", "\xB5"=>"\\xb5", "\xB6"=>"\\xb6", "\xB7"=>"\\xb7",
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"\xB8"=>"\\xb8", "\xB9"=>"\\xb9", "\xBA"=>"\\xba", "\xBB"=>"\\xbb",
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"\xBC"=>"\\xbc", "\xBD"=>"\\xbd", "\xBE"=>"\\xbe", "\xBF"=>"\\xbf",
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"\xC0"=>"\\xc0", "\xC1"=>"\\xc1", "\xC2"=>"\\xc2", "\xC3"=>"\\xc3",
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"\xC4"=>"\\xc4", "\xC5"=>"\\xc5", "\xC6"=>"\\xc6", "\xC7"=>"\\xc7",
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"\xC8"=>"\\xc8", "\xC9"=>"\\xc9", "\xCA"=>"\\xca", "\xCB"=>"\\xcb",
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"\xCC"=>"\\xcc", "\xCD"=>"\\xcd", "\xCE"=>"\\xce", "\xCF"=>"\\xcf",
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"\xD0"=>"\\xd0", "\xD1"=>"\\xd1", "\xD2"=>"\\xd2", "\xD3"=>"\\xd3",
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"\xD4"=>"\\xd4", "\xD5"=>"\\xd5", "\xD6"=>"\\xd6", "\xD7"=>"\\xd7",
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"\xD8"=>"\\xd8", "\xD9"=>"\\xd9", "\xDA"=>"\\xda", "\xDB"=>"\\xdb",
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"\xDC"=>"\\xdc", "\xDD"=>"\\xdd", "\xDE"=>"\\xde", "\xDF"=>"\\xdf",
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"\xE0"=>"\\xe0", "\xE1"=>"\\xe1", "\xE2"=>"\\xe2", "\xE3"=>"\\xe3",
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"\xE4"=>"\\xe4", "\xE5"=>"\\xe5", "\xE6"=>"\\xe6", "\xE7"=>"\\xe7",
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"\xE8"=>"\\xe8", "\xE9"=>"\\xe9", "\xEA"=>"\\xea", "\xEB"=>"\\xeb",
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"\xEC"=>"\\xec", "\xED"=>"\\xed", "\xEE"=>"\\xee", "\xEF"=>"\\xef",
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"\xF0"=>"\\xf0", "\xF1"=>"\\xf1", "\xF2"=>"\\xf2", "\xF3"=>"\\xf3",
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"\xF4"=>"\\xf4", "\xF5"=>"\\xf5", "\xF6"=>"\\xf6", "\xF7"=>"\\xf7",
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"\xF8"=>"\\xf8", "\xF9"=>"\\xf9", "\xFA"=>"\\xfa", "\xFB"=>"\\xfb",
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"\xFC"=>"\\xfc", "\xFD"=>"\\xfd", "\xFE"=>"\\xfe", "\xFF"=>"\\xff",
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}.freeze
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private_constant :RString2CStr
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end
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2018-01-12 03:38:12 -05:00
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unless defined? ''.b
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class String
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def b
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return dup.force_encoding 'binary'
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end
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end
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end
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