scratch – Blame information for rev 87

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87 office 1 <?php
2  
3 /*
4 * This file is part of the Symfony package.
5 *
6 * (c) Fabien Potencier <fabien@symfony.com>
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11  
12 namespace Symfony\Component\CssSelector\Parser\Shortcut;
13  
14 use Symfony\Component\CssSelector\Node\ElementNode;
15 use Symfony\Component\CssSelector\Node\SelectorNode;
16 use Symfony\Component\CssSelector\Parser\ParserInterface;
17  
18 /**
19 * CSS selector class parser shortcut.
20 *
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.
24 *
25 * This component is a port of the Python cssselect library,
26 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
27 *
28 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
29 *
30 * @internal
31 */
32 class EmptyStringParser implements ParserInterface
33 {
34 /**
35 * {@inheritdoc}
36 */
37 public function parse($source)
38 {
39 // Matches an empty string
40 if ($source == '') {
41 return array(new SelectorNode(new ElementNode(null, '*')));
42 }
43  
44 return array();
45 }
46 }