Method scan_comment

dependencies/json/json.hpp:6783–6848

! * @brief scan a comment * @return whether comment could be scanned successfully */

     * @return whether comment could be scanned successfully
     */
    bool scan_comment()
    {
        switch (get())
        {
            // single-line comments skip input until a newline or EOF is read
            case '/':
            {
                while (true)
                {
                    switch (get())
                    {
                        case '\n':
                        case '\r':
                        case std::char_traits<char_type>::eof():
                        case '\0':
                            return true;

                        default:
                            break;
                    }
                }
            }

            // multi-line comments skip input until */ is read
            case '*':
            {
                while (true)
                {
                    switch (get())
                    {
                        case std::char_traits<char_type>::eof():
                        case '\0':
                        {
                            error_message = "invalid comment; missing closing '*/'";
                            return false;
                        }

                        case '*':
                        {
                            switch (get())
                            {
                                case '/':
                                    return true;

                                default:
                                {
                                    unget();
                                    continue;
                                }
                            }
                        }

                        default:
                            continue;
                    }
                }
            }