<?php

namespace Symfony\Component\Translation\Extractor;

class PhpStringTokenParser
{
    protected static $replacements = [
        '\\' => '\\',
        '$' => '$',
        'n' => "\n",
        'r' => "\r",
        't' => "\t",
        'f' => "\f",
        'v' => "\v",
        'e' => "\x1B",
    ];

    /**
     * Parses a string token.
     *
     * @param string $str String token content
     *
     * @return string The parsed string
     */
    public static function parse($str)
    {
        $bLength = 0;
        if ('b' === $str[0]) {
            $bLength = 1;
        }

        if ('\'' === $str[$bLength]) {
            return str_replace(
                ['\\\\', '\\\''],
                ['\\', '\''],
                substr($str, $bLength + 1, -1)
            );
        } else {
            return self::parseEscapeSequences(substr($str, $bLength + 1, -1), '"');
        }
    }

    /**
     * Parses escape sequences in strings (all string types apart from single quoted).
     *
     * @param string      $str   String without quotes
     * @param string|null $quote Quote type
     *
     * @return string String with escape sequences parsed
     */
    public static function parseEscapeSequences($str, $quote)
    {
        if (null !== $quote) {
            $str = str_replace('\\'.$quote, $quote, $str);
        }

        return preg_replace_callback(
            '~\\\\([\\\\$nrtfve]|[xX][0-9a-fA-F]{1,2}|[0-7]{1,3})~',
            [__CLASS__, 'parseCallback'],
            $str
        );
    }

    private static function parseCallback(array $matches): string
    {
        $str = $matches[1];

        if (isset(self::$replacements[$str])) {
            return self::$replacements[$str];
        } elseif ('x' === $str[0] || 'X' === $str[0]) {
            return \chr(hexdec($str));
        } else {
            return \chr(octdec($str));
        }
    }

    /**
     * Parses a constant doc string.
     *
     * @param string $startToken Doc string start token content (<<<SMTHG)
     * @param string $str        String token content
     *
     * @return string Parsed string
     */
    public static function parseDocString($startToken, $str)
    {
        // strip last newline (thanks tokenizer for sticking it into the string!)
        $str = preg_replace('~(\r\n|\n|\r)$~', '', $str);

        // nowdoc string
        if (str_contains($startToken, '\'')) {
            return $str;
        }

        return self::parseEscapeSequences($str, null);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MTk0MzkwNDkxOTg3NTgzMCA5MDIyODU5MjM2NzU2NTI2IDczNzY2NTYzMzQ5ODQ5NDU=