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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\HashNode; 16 use Symfony\Component\CssSelector\Node\SelectorNode; 17 use Symfony\Component\CssSelector\Parser\ParserInterface; 18 19 /** 20 * CSS selector hash parser shortcut. 21 * 22 * This component is a port of the Python cssselect library, 23 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. 24 * 25 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> 26 * 27 * @internal 28 */ 29 class HashParser implements ParserInterface 30 { 31 /** 32 * {@inheritdoc} 33 */ 34 public function parse(string $source): array 35 { 36 // Matches an optional namespace, optional element, and required id 37 // $source = 'test|input#ab6bd_field'; 38 // $matches = array (size=4) 39 // 0 => string 'test|input#ab6bd_field' (length=22) 40 // 1 => string 'test' (length=4) 41 // 2 => string 'input' (length=5) 42 // 3 => string 'ab6bd_field' (length=11) 43 if (preg_match('/^(?:([a-z]++)\|)?+([\w-]++|\*)?+#([\w-]++)$/i', trim($source), $matches)) { 44 return [ 45 new SelectorNode(new HashNode(new ElementNode($matches[1] ?: null, $matches[2] ?: null), $matches[3])), 46 ]; 47 } 48 49 return []; 50 } 51 }
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