You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
4.3 KiB
142 lines
4.3 KiB
<?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 Symfony\Component\Translation\Extractor;
|
|
|
|
/*
|
|
* The following is derived from code at http://github.com/nikic/PHP-Parser
|
|
*
|
|
* Copyright (c) 2011 by Nikita Popov
|
|
*
|
|
* Some rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
*
|
|
* * The names of the contributors may not be used to endorse or
|
|
* promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
class PhpStringTokenParser
|
|
{
|
|
protected static $replacements = [
|
|
'\\' => '\\',
|
|
'$' => '$',
|
|
'n' => "\n",
|
|
'r' => "\r",
|
|
't' => "\t",
|
|
'f' => "\f",
|
|
'v' => "\v",
|
|
'e' => "\x1B",
|
|
];
|
|
|
|
/**
|
|
* Parses a string token.
|
|
*
|
|
* @param string $str String token content
|
|
*
|
|
* @return string The parsed string
|
|
*/
|
|
public static function parse(string $str)
|
|
{
|
|
$bLength = 0;
|
|
if ('b' === $str[0]) {
|
|
$bLength = 1;
|
|
}
|
|
|
|
if ('\'' === $str[$bLength]) {
|
|
return str_replace(
|
|
['\\\\', '\\\''],
|
|
['\\', '\''],
|
|
substr($str, $bLength + 1, -1)
|
|
);
|
|
} else {
|
|
return self::parseEscapeSequences(substr($str, $bLength + 1, -1), '"');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parses escape sequences in strings (all string types apart from single quoted).
|
|
*
|
|
* @param string $str String without quotes
|
|
* @param string|null $quote Quote type
|
|
*
|
|
* @return string String with escape sequences parsed
|
|
*/
|
|
public static function parseEscapeSequences(string $str, string $quote = null)
|
|
{
|
|
if (null !== $quote) {
|
|
$str = str_replace('\\'.$quote, $quote, $str);
|
|
}
|
|
|
|
return preg_replace_callback(
|
|
'~\\\\([\\\\$nrtfve]|[xX][0-9a-fA-F]{1,2}|[0-7]{1,3})~',
|
|
[__CLASS__, 'parseCallback'],
|
|
$str
|
|
);
|
|
}
|
|
|
|
private static function parseCallback(array $matches): string
|
|
{
|
|
$str = $matches[1];
|
|
|
|
if (isset(self::$replacements[$str])) {
|
|
return self::$replacements[$str];
|
|
} elseif ('x' === $str[0] || 'X' === $str[0]) {
|
|
return \chr(hexdec($str));
|
|
} else {
|
|
return \chr(octdec($str));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parses a constant doc string.
|
|
*
|
|
* @param string $startToken Doc string start token content (<<<SMTHG)
|
|
* @param string $str String token content
|
|
*
|
|
* @return string Parsed string
|
|
*/
|
|
public static function parseDocString(string $startToken, string $str)
|
|
{
|
|
// strip last newline (thanks tokenizer for sticking it into the string!)
|
|
$str = preg_replace('~(\r\n|\n|\r)$~', '', $str);
|
|
|
|
// nowdoc string
|
|
if (false !== strpos($startToken, '\'')) {
|
|
return $str;
|
|
}
|
|
|
|
return self::parseEscapeSequences($str, null);
|
|
}
|
|
}
|
|
|