48 lines
1.4 KiB
PHP
48 lines
1.4 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\CssSelector\Parser\Shortcut;
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use Symfony\Component\CssSelector\Node\ElementNode;
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use Symfony\Component\CssSelector\Node\SelectorNode;
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use Symfony\Component\CssSelector\Parser\ParserInterface;
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/**
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* CSS selector element parser shortcut.
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*
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* This component is a port of the Python cssselect library,
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* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
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*
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* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
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*
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* @internal
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*/
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class ElementParser implements ParserInterface
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{
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/**
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* {@inheritdoc}
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*/
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public function parse($source)
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{
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// Matches an optional namespace, required element or `*`
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// $source = 'testns|testel';
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// $matches = array (size=3)
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// 0 => string 'testns|testel' (length=13)
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// 1 => string 'testns' (length=6)
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// 2 => string 'testel' (length=6)
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if (preg_match('/^(?:([a-z]++)\|)?([\w-]++|\*)$/i', trim($source), $matches)) {
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return array(new SelectorNode(new ElementNode($matches[1] ?: null, $matches[2])));
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}
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return array();
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}
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}
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