72 lines
2.3 KiB
PHP
72 lines
2.3 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\Handler;
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use Symfony\Component\CssSelector\Exception\InternalErrorException;
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use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
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use Symfony\Component\CssSelector\Parser\Reader;
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use Symfony\Component\CssSelector\Parser\Token;
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use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
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use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
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use Symfony\Component\CssSelector\Parser\TokenStream;
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/**
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* CSS selector comment handler.
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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 StringHandler implements HandlerInterface
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{
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public function __construct(
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private TokenizerPatterns $patterns,
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private TokenizerEscaping $escaping,
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) {
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}
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public function handle(Reader $reader, TokenStream $stream): bool
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{
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$quote = $reader->getSubstring(1);
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if (!\in_array($quote, ["'", '"'])) {
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return false;
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}
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$reader->moveForward(1);
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$match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote));
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if (!$match) {
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throw new InternalErrorException(sprintf('Should have found at least an empty match at %d.', $reader->getPosition()));
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}
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// check unclosed strings
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if (\strlen($match[0]) === $reader->getRemainingLength()) {
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throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
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}
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// check quotes pairs validity
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if ($quote !== $reader->getSubstring(1, \strlen($match[0]))) {
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throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
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}
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$string = $this->escaping->escapeUnicodeAndNewLine($match[0]);
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$stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition()));
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$reader->moveForward(\strlen($match[0]) + 1);
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return true;
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}
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}
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