WhitespaceHandler.php 1.1 KB

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  1. <?php
  2. /*
  3. * This file is part of the Symfony package.
  4. *
  5. * (c) Fabien Potencier <fabien@symfony.com>
  6. *
  7. * For the full copyright and license information, please view the LICENSE
  8. * file that was distributed with this source code.
  9. */
  10. namespace Symfony\Component\CssSelector\Parser\Handler;
  11. use Symfony\Component\CssSelector\Parser\Reader;
  12. use Symfony\Component\CssSelector\Parser\Token;
  13. use Symfony\Component\CssSelector\Parser\TokenStream;
  14. /**
  15. * CSS selector whitespace handler.
  16. *
  17. * This component is a port of the Python cssselect library,
  18. * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
  19. *
  20. * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
  21. *
  22. * @internal
  23. */
  24. class WhitespaceHandler implements HandlerInterface
  25. {
  26. public function handle(Reader $reader, TokenStream $stream): bool
  27. {
  28. $match = $reader->findPattern('~^[ \t\r\n\f]+~');
  29. if (false === $match) {
  30. return false;
  31. }
  32. $stream->push(new Token(Token::TYPE_WHITESPACE, $match[0], $reader->getPosition()));
  33. $reader->moveForward(\strlen($match[0]));
  34. return true;
  35. }
  36. }