49 lines
1.5 KiB
PHP
49 lines
1.5 KiB
PHP
<?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\ClassNode;
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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 class 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 ClassParser implements ParserInterface
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{
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public function parse(string $source): array
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{
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// Matches an optional namespace, optional element, and required class
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// $source = 'test|input.ab6bd_field';
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// $matches = array (size=4)
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// 0 => string 'test|input.ab6bd_field' (length=22)
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// 1 => string 'test' (length=4)
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// 2 => string 'input' (length=5)
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// 3 => string 'ab6bd_field' (length=11)
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if (preg_match('/^(?:([a-z]++)\|)?+([\w-]++|\*)?+\.([\w-]++)$/i', trim($source), $matches)) {
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return [
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new SelectorNode(new ClassNode(new ElementNode($matches[1] ?: null, $matches[2] ?: null), $matches[3])),
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];
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}
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return [];
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}
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}
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