Method get_ubjson_value

native/thirdpart/json/json.hpp:6706–6797

! @param prefix the previously read or set type prefix @return whether value creation completed */

    @return whether value creation completed
    */
    bool get_ubjson_value(const int prefix)
    {
        switch (prefix)
        {
            case std::char_traits<char>::eof():  // EOF
                return unexpect_eof(input_format_t::ubjson, "value");

            case 'T':  // true
                return sax->boolean(true);
            case 'F':  // false
                return sax->boolean(false);

            case 'Z':  // null
                return sax->null();

            case 'U':
            {
                std::uint8_t number;
                return get_number(input_format_t::ubjson, number) and sax->number_unsigned(number);
            }

            case 'i':
            {
                std::int8_t number;
                return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
            }

            case 'I':
            {
                std::int16_t number;
                return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
            }

            case 'l':
            {
                std::int32_t number;
                return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
            }

            case 'L':
            {
                std::int64_t number;
                return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
            }

            case 'd':
            {
                float number;
                return get_number(input_format_t::ubjson, number) and sax->number_float(static_cast<number_float_t>(number), "");
            }

            case 'D':
            {
                double number;
                return get_number(input_format_t::ubjson, number) and sax->number_float(static_cast<number_float_t>(number), "");
            }

            case 'C':  // char