annotate vendor/symfony/css-selector/Parser/Handler/StringHandler.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 129ea1e6d783
children
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Chris@0 1 <?php
Chris@0 2
Chris@0 3 /*
Chris@0 4 * This file is part of the Symfony package.
Chris@0 5 *
Chris@0 6 * (c) Fabien Potencier <fabien@symfony.com>
Chris@0 7 *
Chris@0 8 * For the full copyright and license information, please view the LICENSE
Chris@0 9 * file that was distributed with this source code.
Chris@0 10 */
Chris@0 11
Chris@0 12 namespace Symfony\Component\CssSelector\Parser\Handler;
Chris@0 13
Chris@0 14 use Symfony\Component\CssSelector\Exception\InternalErrorException;
Chris@0 15 use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
Chris@0 16 use Symfony\Component\CssSelector\Parser\Reader;
Chris@0 17 use Symfony\Component\CssSelector\Parser\Token;
Chris@0 18 use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
Chris@0 19 use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
Chris@17 20 use Symfony\Component\CssSelector\Parser\TokenStream;
Chris@0 21
Chris@0 22 /**
Chris@0 23 * CSS selector comment handler.
Chris@0 24 *
Chris@0 25 * This component is a port of the Python cssselect library,
Chris@0 26 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
Chris@0 27 *
Chris@0 28 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
Chris@0 29 *
Chris@0 30 * @internal
Chris@0 31 */
Chris@0 32 class StringHandler implements HandlerInterface
Chris@0 33 {
Chris@0 34 private $patterns;
Chris@0 35 private $escaping;
Chris@0 36
Chris@0 37 public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
Chris@0 38 {
Chris@0 39 $this->patterns = $patterns;
Chris@0 40 $this->escaping = $escaping;
Chris@0 41 }
Chris@0 42
Chris@0 43 /**
Chris@0 44 * {@inheritdoc}
Chris@0 45 */
Chris@0 46 public function handle(Reader $reader, TokenStream $stream)
Chris@0 47 {
Chris@0 48 $quote = $reader->getSubstring(1);
Chris@0 49
Chris@17 50 if (!\in_array($quote, ["'", '"'])) {
Chris@0 51 return false;
Chris@0 52 }
Chris@0 53
Chris@0 54 $reader->moveForward(1);
Chris@0 55 $match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote));
Chris@0 56
Chris@0 57 if (!$match) {
Chris@0 58 throw new InternalErrorException(sprintf('Should have found at least an empty match at %s.', $reader->getPosition()));
Chris@0 59 }
Chris@0 60
Chris@0 61 // check unclosed strings
Chris@17 62 if (\strlen($match[0]) === $reader->getRemainingLength()) {
Chris@0 63 throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
Chris@0 64 }
Chris@0 65
Chris@0 66 // check quotes pairs validity
Chris@17 67 if ($quote !== $reader->getSubstring(1, \strlen($match[0]))) {
Chris@0 68 throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
Chris@0 69 }
Chris@0 70
Chris@0 71 $string = $this->escaping->escapeUnicodeAndNewLine($match[0]);
Chris@0 72 $stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition()));
Chris@17 73 $reader->moveForward(\strlen($match[0]) + 1);
Chris@0 74
Chris@0 75 return true;
Chris@0 76 }
Chris@0 77 }