Method parse_bson_element_internal

Source/external/json.hpp:9346–9412

! @brief Read a BSON document element of the given @a element_type. @param[in] element_type The BSON element type, c.f. http://bsonspec.org/spec.html @param[in] element_type_parse_position The position in the input stream, where the `element_type` was read. @warning Not all BSON element types are supported yet. An unsupported @a element_type will give rise to a parse_error.114: U

	@return whether a valid BSON-object/array was passed to the SAX parser
	*/
	bool parse_bson_element_internal(const char_int_type element_type,
									 const std::size_t element_type_parse_position)
	{
		switch (element_type)
		{
			case 0x01: // double
			{
				double number{};
				return get_number<double, true>(input_format_t::bson, number) && sax->number_float(static_cast<number_float_t>(number), "");
			}

			case 0x02: // string
			{
				std::int32_t len{};
				string_t value;
				return get_number<std::int32_t, true>(input_format_t::bson, len) && get_bson_string(len, value) && sax->string(value);
			}

			case 0x03: // object
			{
				return parse_bson_internal();
			}

			case 0x04: // array
			{
				return parse_bson_array();
			}

			case 0x05: // binary
			{
				std::int32_t len{};
				binary_t value;
				return get_number<std::int32_t, true>(input_format_t::bson, len) && get_bson_binary(len, value) && sax->binary(value);
			}

			case 0x08: // boolean
			{
				return sax->boolean(get() != 0);
			}

			case 0x0A: // null
			{
				return sax->null();
			}

			case 0x10: // int32
			{
				std::int32_t value{};
				return get_number<std::int32_t, true>(input_format_t::bson, value) && sax->number_integer(value);
			}

			case 0x12: // int64
			{
				std::int64_t value{};
				return get_number<std::int64_t, true>(input_format_t::bson, value) && sax->number_integer(value);
			}

			default: // anything else not supported (yet)