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
12namespace Symfony\Component\CssSelector\Parser\Handler;
13
14use Symfony\Component\CssSelector\Parser\Reader;
15use Symfony\Component\CssSelector\Parser\Token;
16use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
17use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
18use Symfony\Component\CssSelector\Parser\TokenStream;
19
20/**
21 * CSS selector comment handler.
22 *
23 * This component is a port of the Python cssselect library,
24 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
25 *
26 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
27 *
28 * @internal
29 */
30class HashHandler implements HandlerInterface
31{
32    private $patterns;
33    private $escaping;
34
35    public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
36    {
37        $this->patterns = $patterns;
38        $this->escaping = $escaping;
39    }
40
41    /**
42     * {@inheritdoc}
43     */
44    public function handle(Reader $reader, TokenStream $stream): bool
45    {
46        $match = $reader->findPattern($this->patterns->getHashPattern());
47
48        if (!$match) {
49            return false;
50        }
51
52        $value = $this->escaping->escapeUnicode($match[1]);
53        $stream->push(new Token(Token::TYPE_HASH, $value, $reader->getPosition()));
54        $reader->moveForward(\strlen($match[0]));
55
56        return true;
57    }
58}
59