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annotate vendor/symfony/css-selector/Parser/Shortcut/EmptyStringParser.php @ 19:fa3358dc1485 tip
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author | Chris Cannam |
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date | Wed, 28 Aug 2019 13:14:47 +0100 |
parents | 129ea1e6d783 |
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rev | line source |
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Chris@0 | 1 <?php |
Chris@0 | 2 |
Chris@0 | 3 /* |
Chris@0 | 4 * This file is part of the Symfony package. |
Chris@0 | 5 * |
Chris@0 | 6 * (c) Fabien Potencier <fabien@symfony.com> |
Chris@0 | 7 * |
Chris@0 | 8 * For the full copyright and license information, please view the LICENSE |
Chris@0 | 9 * file that was distributed with this source code. |
Chris@0 | 10 */ |
Chris@0 | 11 |
Chris@0 | 12 namespace Symfony\Component\CssSelector\Parser\Shortcut; |
Chris@0 | 13 |
Chris@0 | 14 use Symfony\Component\CssSelector\Node\ElementNode; |
Chris@0 | 15 use Symfony\Component\CssSelector\Node\SelectorNode; |
Chris@0 | 16 use Symfony\Component\CssSelector\Parser\ParserInterface; |
Chris@0 | 17 |
Chris@0 | 18 /** |
Chris@0 | 19 * CSS selector class parser shortcut. |
Chris@0 | 20 * |
Chris@0 | 21 * This shortcut ensure compatibility with previous version. |
Chris@0 | 22 * - The parser fails to parse an empty string. |
Chris@0 | 23 * - In the previous version, an empty string matches each tags. |
Chris@0 | 24 * |
Chris@0 | 25 * This component is a port of the Python cssselect library, |
Chris@0 | 26 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. |
Chris@0 | 27 * |
Chris@0 | 28 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> |
Chris@0 | 29 * |
Chris@0 | 30 * @internal |
Chris@0 | 31 */ |
Chris@0 | 32 class EmptyStringParser implements ParserInterface |
Chris@0 | 33 { |
Chris@0 | 34 /** |
Chris@0 | 35 * {@inheritdoc} |
Chris@0 | 36 */ |
Chris@0 | 37 public function parse($source) |
Chris@0 | 38 { |
Chris@0 | 39 // Matches an empty string |
Chris@14 | 40 if ('' == $source) { |
Chris@17 | 41 return [new SelectorNode(new ElementNode(null, '*'))]; |
Chris@0 | 42 } |
Chris@0 | 43 |
Chris@17 | 44 return []; |
Chris@0 | 45 } |
Chris@0 | 46 } |