mirror of
https://github.com/rectorphp/rector.git
synced 2025-02-24 19:53:14 +01:00
9131fc62e0
2ed0430f4e [NodeTypeResolver] Avoid error Uncaught TypeError: PHPStan\Type\Constant\ConstantIntegerType::__construct(): Argument #1 () must be of type int, string given (#1210)
131 lines
3.9 KiB
PHP
131 lines
3.9 KiB
PHP
<?php
|
||
|
||
/*
|
||
* This file is part of the Symfony package.
|
||
*
|
||
* (c) Fabien Potencier <fabien@symfony.com>
|
||
*
|
||
* For the full copyright and license information, please view the LICENSE
|
||
* file that was distributed with this source code.
|
||
*/
|
||
namespace RectorPrefix20211111\Symfony\Component\Yaml;
|
||
|
||
use RectorPrefix20211111\Symfony\Component\Yaml\Exception\ParseException;
|
||
/**
|
||
* Unescaper encapsulates unescaping rules for single and double-quoted
|
||
* YAML strings.
|
||
*
|
||
* @author Matthew Lewinski <matthew@lewinski.org>
|
||
*
|
||
* @internal
|
||
*/
|
||
class Unescaper
|
||
{
|
||
/**
|
||
* Regex fragment that matches an escaped character in a double quoted string.
|
||
*/
|
||
public const REGEX_ESCAPED_CHARACTER = '\\\\(x[0-9a-fA-F]{2}|u[0-9a-fA-F]{4}|U[0-9a-fA-F]{8}|.)';
|
||
/**
|
||
* Unescapes a single quoted string.
|
||
*
|
||
* @param string $value A single quoted string
|
||
*
|
||
* @return string The unescaped string
|
||
*/
|
||
public function unescapeSingleQuotedString($value) : string
|
||
{
|
||
return \str_replace('\'\'', '\'', $value);
|
||
}
|
||
/**
|
||
* Unescapes a double quoted string.
|
||
*
|
||
* @param string $value A double quoted string
|
||
*
|
||
* @return string The unescaped string
|
||
*/
|
||
public function unescapeDoubleQuotedString($value) : string
|
||
{
|
||
$callback = function ($match) {
|
||
return $this->unescapeCharacter($match[0]);
|
||
};
|
||
// evaluate the string
|
||
return \preg_replace_callback('/' . self::REGEX_ESCAPED_CHARACTER . '/u', $callback, $value);
|
||
}
|
||
/**
|
||
* Unescapes a character that was found in a double-quoted string.
|
||
*
|
||
* @param string $value An escaped character
|
||
*
|
||
* @return string The unescaped character
|
||
*/
|
||
private function unescapeCharacter(string $value) : string
|
||
{
|
||
switch ($value[1]) {
|
||
case '0':
|
||
return "\0";
|
||
case 'a':
|
||
return "\7";
|
||
case 'b':
|
||
return "\10";
|
||
case 't':
|
||
return "\t";
|
||
case "\t":
|
||
return "\t";
|
||
case 'n':
|
||
return "\n";
|
||
case 'v':
|
||
return "\v";
|
||
case 'f':
|
||
return "\f";
|
||
case 'r':
|
||
return "\r";
|
||
case 'e':
|
||
return "\33";
|
||
case ' ':
|
||
return ' ';
|
||
case '"':
|
||
return '"';
|
||
case '/':
|
||
return '/';
|
||
case '\\':
|
||
return '\\';
|
||
case 'N':
|
||
// U+0085 NEXT LINE
|
||
return "
";
|
||
case '_':
|
||
// U+00A0 NO-BREAK SPACE
|
||
return " ";
|
||
case 'L':
|
||
// U+2028 LINE SEPARATOR
|
||
return "
";
|
||
case 'P':
|
||
// U+2029 PARAGRAPH SEPARATOR
|
||
return "
";
|
||
case 'x':
|
||
return self::utf8chr(\hexdec(\substr($value, 2, 2)));
|
||
case 'u':
|
||
return self::utf8chr(\hexdec(\substr($value, 2, 4)));
|
||
case 'U':
|
||
return self::utf8chr(\hexdec(\substr($value, 2, 8)));
|
||
default:
|
||
throw new \RectorPrefix20211111\Symfony\Component\Yaml\Exception\ParseException(\sprintf('Found unknown escape character "%s".', $value));
|
||
}
|
||
}
|
||
/**
|
||
* Get the UTF-8 character for the given code point.
|
||
*/
|
||
private static function utf8chr(int $c) : string
|
||
{
|
||
if (0x80 > ($c %= 0x200000)) {
|
||
return \chr($c);
|
||
}
|
||
if (0x800 > $c) {
|
||
return \chr(0xc0 | $c >> 6) . \chr(0x80 | $c & 0x3f);
|
||
}
|
||
if (0x10000 > $c) {
|
||
return \chr(0xe0 | $c >> 12) . \chr(0x80 | $c >> 6 & 0x3f) . \chr(0x80 | $c & 0x3f);
|
||
}
|
||
return \chr(0xf0 | $c >> 18) . \chr(0x80 | $c >> 12 & 0x3f) . \chr(0x80 | $c >> 6 & 0x3f) . \chr(0x80 | $c & 0x3f);
|
||
}
|
||
}
|