<?php
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;
class StringHandler implements HandlerInterface
{
public function __construct(
private TokenizerPatterns $patterns,
private TokenizerEscaping $escaping,
) {
}
public function handle(Reader $reader, TokenStream $stream): bool
{
$quote = $reader->getSubstring(1);
if (!\in_array($quote, ["'", '"'], true)) {
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.', $reader->getPosition()));
}
if (\strlen($match[0]) === $reader->getRemainingLength()) {
throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
}
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;
}
}