Method get_ubjson_string

dependencies/json/json.hpp:9487–9535

! @brief reads a UBJSON string This function is either called after reading the 'S' byte explicitly indicating a string, or in case of an object key where the 'S' byte can be left out. @param[out] result created string @param[in] get_char whether a new character should be retrieved from the input (true, default) or whether the last read

    @return whether string creation completed
    */
    bool get_ubjson_string(string_t& result, const bool get_char = true)
    {
        if (get_char)
        {
            get();  // TODO(niels): may we ignore N here?
        }

        if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value")))
        {
            return false;
        }

        switch (current)
        {
            case 'U':
            {
                std::uint8_t len{};
                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
            }

            case 'i':
            {
                std::int8_t len{};
                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
            }

            case 'I':
            {
                std::int16_t len{};
                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
            }

            case 'l':
            {
                std::int32_t len{};
                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
            }

            case 'L':
            {
                std::int64_t len{};
                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
            }

            default:
                auto last_token = get_token_string();
                return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L); last byte: 0x" + last_token, "string")));
        }
    }

    /*!
    @param[out] result  determined size