4 * This file is part of the Symfony package.
6 * (c) Fabien Potencier <fabien@symfony.com>
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
12 namespace Symfony\Component\CssSelector\Parser\Shortcut;
14 use Symfony\Component\CssSelector\Node\ElementNode;
15 use Symfony\Component\CssSelector\Node\SelectorNode;
16 use Symfony\Component\CssSelector\Parser\ParserInterface;
19 * CSS selector class parser shortcut.
21 * This shortcut ensure compatibility with previous version.
22 * - The parser fails to parse an empty string.
23 * - In the previous version, an empty string matches each tags.
25 * This component is a port of the Python cssselect library,
26 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
28 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
32 class EmptyStringParser implements ParserInterface
37 public function parse($source)
39 // Matches an empty string
41 return array(new SelectorNode(new ElementNode(null, '*')));