<?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\Tokenizer;

/**
 * CSS selector tokenizer escaping applier.
 *
 * 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 TokenizerEscaping
{
    private $patterns;

    public function __construct(TokenizerPatterns $patterns)
    {
        $this->patterns = $patterns;
    }

    /**
     * @param string $value
     *
     * @return string
     */
    public function escapeUnicode($value)
    {
        $value = $this->replaceUnicodeSequences($value);

        return preg_replace($this->patterns->getSimpleEscapePattern(), '$1', $value);
    }

    /**
     * @param string $value
     *
     * @return string
     */
    public function escapeUnicodeAndNewLine($value)
    {
        $value = preg_replace($this->patterns->getNewLineEscapePattern(), '', $value);

        return $this->escapeUnicode($value);
    }

    /**
     * @param string $value
     *
     * @return string
     */
    private function replaceUnicodeSequences($value)
    {
        return preg_replace_callback($this->patterns->getUnicodeEscapePattern(), function ($match) {
            $c = hexdec($match[1]);

            if (0x80 > $c %= 0x200000) {
                return chr($c);
            }
            if (0x800 > $c) {
                return chr(0xC0 | $c >> 6).chr(0x80 | $c & 0x3F);
            }
            if (0x10000 > $c) {
                return chr(0xE0 | $c >> 12).chr(0x80 | $c >> 6 & 0x3F).chr(0x80 | $c & 0x3F);
            }
        }, $value);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MTAyMjM1NDU1MDA5NTMyMyA4MjA5NDQ0MjAwNTQwMDcgODAwNDg4MDc2NjgzOTIz