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vendor/symfony/css-selector/Parser/Shortcut/EmptyStringParser.php 1.18 KB
ad2e91f7   Mihail   move multyparser ...
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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\Shortcut;
  
  use Symfony\Component\CssSelector\Node\ElementNode;
  use Symfony\Component\CssSelector\Node\SelectorNode;
  use Symfony\Component\CssSelector\Parser\ParserInterface;
  
  /**
   * CSS selector class parser shortcut.
   *
   * This shortcut ensure compatibility with previous version.
   * - The parser fails to parse an empty string.
   * - In the previous version, an empty string matches each tags.
   *
   * 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>
   */
  class EmptyStringParser implements ParserInterface
  {
      /**
       * {@inheritdoc}
       */
      public function parse($source)
      {
          // Matches an empty string
          if ($source == '') {
              return array(new SelectorNode(new ElementNode(null, '*')));
          }
  
          return array();
      }
  }