77 lines
2.4 KiB
PHP
77 lines
2.4 KiB
PHP
<?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\Handler;
|
|
|
|
use Symfony\Component\CssSelector\Exception\InternalErrorException;
|
|
use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
|
|
use Symfony\Component\CssSelector\Parser\Reader;
|
|
use Symfony\Component\CssSelector\Parser\Token;
|
|
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
|
|
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
|
|
use Symfony\Component\CssSelector\Parser\TokenStream;
|
|
|
|
/**
|
|
* CSS selector comment handler.
|
|
*
|
|
* This component is a port of the Python cssselect library,
|
|
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
|
|
*
|
|
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
|
|
*
|
|
* @internal
|
|
*/
|
|
class StringHandler implements HandlerInterface
|
|
{
|
|
private $patterns;
|
|
private $escaping;
|
|
|
|
public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
|
|
{
|
|
$this->patterns = $patterns;
|
|
$this->escaping = $escaping;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function handle(Reader $reader, TokenStream $stream): bool
|
|
{
|
|
$quote = $reader->getSubstring(1);
|
|
|
|
if (!\in_array($quote, ["'", '"'])) {
|
|
return false;
|
|
}
|
|
|
|
$reader->moveForward(1);
|
|
$match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote));
|
|
|
|
if (!$match) {
|
|
throw new InternalErrorException(sprintf('Should have found at least an empty match at %d.', $reader->getPosition()));
|
|
}
|
|
|
|
// check unclosed strings
|
|
if (\strlen($match[0]) === $reader->getRemainingLength()) {
|
|
throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
|
|
}
|
|
|
|
// check quotes pairs validity
|
|
if ($quote !== $reader->getSubstring(1, \strlen($match[0]))) {
|
|
throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
|
|
}
|
|
|
|
$string = $this->escaping->escapeUnicodeAndNewLine($match[0]);
|
|
$stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition()));
|
|
$reader->moveForward(\strlen($match[0]) + 1);
|
|
|
|
return true;
|
|
}
|
|
}
|