League\HTMLToMarkdown\Converter\ParagraphConverter::escapeOtherCharactersRegex PHP Метод

    private function escapeOtherCharactersRegex($line)
    {
        $regExs = array('/^[0-9]+(?=\\)|\\.)/');
        foreach ($regExs as $i) {
            if (preg_match($i, $line, $match)) {
                // Matched an escapable character, adding a backslash on the string before the offending character
                $line = substr_replace($line, '\\', strlen($match[0]), 0);
            }
        }
        return $line;
    }