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- <?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\CssSelector\Parser\Handler;
- use Symfony\Component\CssSelector\Exception\InternalErrorException;
- use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
- use Symfony\Component\CssSelector\Parser\Reader;
- use Symfony\Component\CssSelector\Parser\Token;
- use Symfony\Component\CssSelector\Parser\TokenStream;
- use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
- use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
- /**
- * CSS selector comment handler.
- *
- * This component is a port of the Python cssselect library,
- * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
- *
- * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
- *
- * @internal
- */
- class StringHandler implements HandlerInterface
- {
- /**
- * @var TokenizerPatterns
- */
- private $patterns;
- /**
- * @var TokenizerEscaping
- */
- private $escaping;
- /**
- * @param TokenizerPatterns $patterns
- * @param TokenizerEscaping $escaping
- */
- public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
- {
- $this->patterns = $patterns;
- $this->escaping = $escaping;
- }
- /**
- * {@inheritdoc}
- */
- public function handle(Reader $reader, TokenStream $stream)
- {
- $quote = $reader->getSubstring(1);
- if (!in_array($quote, array("'", '"'))) {
- return false;
- }
- $reader->moveForward(1);
- $match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote));
- if (!$match) {
- throw new InternalErrorException(sprintf('Should have found at least an empty match at %s.', $reader->getPosition()));
- }
- // check unclosed strings
- if (strlen($match[0]) === $reader->getRemainingLength()) {
- throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
- }
- // check quotes pairs validity
- if ($quote !== $reader->getSubstring(1, strlen($match[0]))) {
- throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
- }
- $string = $this->escaping->escapeUnicodeAndNewLine($match[0]);
- $stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition()));
- $reader->moveForward(strlen($match[0]) + 1);
- return true;
- }
- }
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