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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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|
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namespace Symfony\Component\CssSelector\Parser\Handler; |
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|
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use Symfony\Component\CssSelector\Exception\InternalErrorException; |
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use Symfony\Component\CssSelector\Exception\SyntaxErrorException; |
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use Symfony\Component\CssSelector\Parser\Reader; |
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use Symfony\Component\CssSelector\Parser\Token; |
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use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping; |
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use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns; |
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use Symfony\Component\CssSelector\Parser\TokenStream; |
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|
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/** |
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* CSS selector comment handler. |
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* |
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* This component is a port of the Python cssselect library, |
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* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. |
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* |
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* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> |
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* |
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* @internal |
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*/ |
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class StringHandler implements HandlerInterface |
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{ |
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private $patterns; |
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private $escaping; |
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|
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public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping) |
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{ |
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$this->patterns = $patterns; |
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$this->escaping = $escaping; |
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} |
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|
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/** |
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* {@inheritdoc} |
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*/ |
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public function handle(Reader $reader, TokenStream $stream): bool |
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{ |
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$quote = $reader->getSubstring(1); |
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|
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if (!\in_array($quote, ["'", '"'])) { |
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return false; |
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} |
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|
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$reader->moveForward(1); |
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$match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote)); |
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|
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if (!$match) { |
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throw new InternalErrorException(sprintf('Should have found at least an empty match at %d.', $reader->getPosition())); |
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} |
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|
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// check unclosed strings |
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if (\strlen($match[0]) === $reader->getRemainingLength()) { |
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throw SyntaxErrorException::unclosedString($reader->getPosition() - 1); |
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} |
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|
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// check quotes pairs validity |
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if ($quote !== $reader->getSubstring(1, \strlen($match[0]))) { |
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throw SyntaxErrorException::unclosedString($reader->getPosition() - 1); |
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} |
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|
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$string = $this->escaping->escapeUnicodeAndNewLine($match[0]); |
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$stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition())); |
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$reader->moveForward(\strlen($match[0]) + 1); |
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|
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return true; |
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} |
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} |
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