Classes List

Symfony\Component\CssSelector\Parser\Shortcut\HashParser

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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\HashNode;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\ParserInterface;

/** * CSS selector hash parser shortcut. * * 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> * * @internal */
class HashParser implements ParserInterface
{
    /** * {@inheritdoc} */
    public function parse($source)
    {
        // Matches an optional namespace, optional element, and required id
        // $source = 'test|input#ab6bd_field';
        // $matches = array (size=4)
        // 0 => string 'test|input#ab6bd_field' (length=22)
        // 1 => string 'test' (length=4)
        // 2 => string 'input' (length=5)
        // 3 => string 'ab6bd_field' (length=11)
        if (preg_match('/^(?:([a-z]++)\|)?+([\w-]++|\*)?+#([\w-]++)$/i'trim($source), $matches)) {
            return array(
                new SelectorNode(new HashNode(new ElementNode($matches[1] ?: null$matches[2] ?: null), $matches[3])),
            );
        }

        return array();
    }
}