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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\SelectorNode;
use Symfony\Component\CssSelector\Parser\ParserInterface;
/**
* CSS selector element parser shortcut.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class ElementParser implements ParserInterface
{
/**
* {@inheritdoc}
*/
public function parse($source)
{
// Matches an optional namespace, required element or `*`
// $source = 'testns|testel';
// $matches = array (size=4)
// 0 => string 'testns:testel' (length=13)
// 1 => string 'testns:' (length=7)
// 2 => string 'testns' (length=6)
// 3 => string 'testel' (length=6)
if (preg_match('/^(([a-z]+)\|)?([\w-]+|\*)$/i', trim($source), $matches)) {
return array(new SelectorNode(new ElementNode($matches[2] ?: null, $matches[3])));
}
return array();
}
}