home/alospiesjs/www/apis/youtube/vendor/symfony/translation/Extractor/PhpStringTokenParser.php000060400000010325151161364250027244 0ustar00 * * 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 */ public static function parse(string $str): string { $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 */ public static function parseEscapeSequences(string $str, string $quote = null): string { 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 (<<