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💡 update documentation

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Niels Lohmann 2021-08-08 13:24:17 +02:00
parent db7ccafbda
commit 523f7c2c9d
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10 changed files with 80 additions and 63 deletions
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2
doc/mkdocs/docs/api/basic_json/binary_t.md
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@ -64,4 +64,4 @@ type `#!cpp binary_t*` must be dereferenced.
## Version history
- Added in version 3.8.0.
- Added in version 3.8.0. Changed type of subtype to `std::uint64_t` in version 3.9.2.

8
doc/mkdocs/docs/api/basic_json/cbor_tag_handler_t.md
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@ -4,7 +4,8 @@
enum class cbor_tag_handler_t
{
error,
ignore
ignore,
store
};
```
@ -16,6 +17,9 @@ error
ignore
: ignore tags
store
: store tagged values as binary container with subtype (for bytes 0xd8..0xdb)
## Version history
- Added in version 3.9.0.
- Added in version 3.9.0. Added value `store` in 3.9.2.

4
doc/mkdocs/docs/features/binary_formats/cbor.md
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@ -55,6 +55,8 @@ binary | *size*: 256..65535 | byte string (2 by
binary | *size*: 65536..4294967295 | byte string (4 bytes follow) | 0x5A
binary | *size*: 4294967296..18446744073709551615 | byte string (8 bytes follow) | 0x5B
Binary values with subtype are mapped to tagged values (0xD8..0xDB) depending on the subtype, followed by a byte string,
see "binary" cells in the table above.
!!! success "Complete mapping"
@ -162,7 +164,7 @@ Double-Precision Float | number_float | 0xFB
!!! warning "Tagged items"
Tagged items will throw a parse error by default. However, they can be ignored by passing `cbor_tag_handler_t::ignore` to function `from_cbor`.
Tagged items will throw a parse error by default. They can be ignored by passing `cbor_tag_handler_t::ignore` to function `from_cbor`. They can be stored by passing `cbor_tag_handler_t::store` to function `from_cbor`.
??? example

2
doc/mkdocs/docs/features/binary_formats/index.md
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@ -25,7 +25,7 @@ to efficiently encode JSON values to byte vectors and to decode such vectors.
| Format | Binary values | Binary subtypes |
| ----------- | ------------- | --------------- |
| BSON | supported | supported |
| CBOR | supported | not supported |
| CBOR | supported | supported |
| MessagePack | supported | supported |
| UBJSON | not supported | not supported |

9
doc/mkdocs/docs/features/binary_values.md
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@ -9,10 +9,10 @@ JSON itself does not have a binary value. As such, binary values are an extensio
```plantuml
class json::binary_t {
-- setters --
+void set_subtype(std::uint8_t subtype)
+void set_subtype(std::uint64_t subtype)
+void clear_subtype()
-- getters --
+std::uint8_t subtype() const
+std::uint64_t subtype() const
+bool has_subtype() const
}
@ -68,7 +68,7 @@ j.get_binary().has_subtype(); // returns true
j.get_binary().size(); // returns 4
```
For convencience, binary JSON values can be constructed via `json::binary`:
For convenience, binary JSON values can be constructed via `json::binary`:
```cpp
auto j2 = json::binary({0xCA, 0xFE, 0xBA, 0xBE}, 23);
@ -76,6 +76,7 @@ auto j3 = json::binary({0xCA, 0xFE, 0xBA, 0xBE});
j2 == j; // returns true
j3.get_binary().has_subtype(); // returns false
j3.get_binary().subtype(); // returns std::uint64_t(-1) as j3 has no subtype
```
@ -184,7 +185,7 @@ JSON does not have a binary type, and this library does not introduce a new type
0xCA 0xFE 0xBA 0xBE // content
```
Note that the subtype is serialized as tag. However, parsing tagged values yield a parse error unless `json::cbor_tag_handler_t::ignore` is passed to `json::from_cbor`.
Note that the subtype is serialized as tag. However, parsing tagged values yield a parse error unless `json::cbor_tag_handler_t::ignore` or `json::cbor_tag_handler_t::store` is passed to `json::from_cbor`.
```json
{

7
include/nlohmann/byte_container_with_subtype.hpp
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@ -1,6 +1,6 @@
#pragma once
#include <cstdint> // uint8_t
#include <cstdint> // uint8_t, uint64_t
#include <tuple> // tie
#include <utility> // move
@ -18,7 +18,7 @@ order to override the binary type.
@tparam BinaryType container to store bytes (`std::vector<std::uint8_t>` by
default)
@since version 3.8.0
@since version 3.8.0; changed type of subtypes to std::uint64_t in 3.9.2.
*/
template<typename BinaryType>
class byte_container_with_subtype : public BinaryType
@ -107,7 +107,8 @@ class byte_container_with_subtype : public BinaryType
@sa see @ref has_subtype() -- returns whether or not the binary value has a
subtype
@since version 3.8.0
@since version 3.8.0; fixed return value to properly return
subtype_type(-1) as documented in version 3.9.2
*/
constexpr subtype_type subtype() const noexcept
{

2
include/nlohmann/detail/input/parser.hpp
View File

@ -23,7 +23,7 @@ namespace detail
// parser //
////////////
enum class parse_event_t : uint8_t
enum class parse_event_t : std::uint8_t
{
/// the parser read `{` and started to process a JSON object
object_start,

2
include/nlohmann/detail/output/serializer.hpp
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@ -389,7 +389,7 @@ class serializer
for (std::size_t i = 0; i < s.size(); ++i)
{
const auto byte = static_cast<uint8_t>(s[i]);
const auto byte = static_cast<std::uint8_t>(s[i]);
switch (decode(state, codepoint, byte))
{

44
include/nlohmann/json.hpp
View File

@ -902,8 +902,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
#### Notes on subtypes
- CBOR
- Binary values are represented as byte strings. No subtypes are
supported and will be ignored when CBOR is written.
- Binary values are represented as byte strings. Subtypes are serialized
as tagged values.
- MessagePack
- If a subtype is given and the binary array contains exactly 1, 2, 4, 8,
or 16 elements, the fixext family (fixext1, fixext2, fixext4, fixext8)
@ -1497,7 +1497,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@ref number_float_t, and all convertible number types such as `int`,
`size_t`, `int64_t`, `float` or `double` can be used.
- **boolean**: @ref boolean_t / `bool` can be used.
- **binary**: @ref binary_t / `std::vector<uint8_t>` may be used,
- **binary**: @ref binary_t / `std::vector<std::uint8_t>` may be used,
unfortunately because string literals cannot be distinguished from binary
character arrays by the C++ type system, all types compatible with `const
char*` will be directed to the string constructor instead. This is both
@ -7187,6 +7187,10 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
binary | *size*: 65536..4294967295 | byte string (4 bytes follow) | 0x5A
binary | *size*: 4294967296..18446744073709551615 | byte string (8 bytes follow) | 0x5B
Binary values with subtype are mapped to tagged values (0xD8..0xDB)
depending on the subtype, followed by a byte string, see "binary" cells
in the table above.
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a CBOR value.
@ -7227,16 +7231,16 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@since version 2.0.9; compact representation of floating-point numbers
since version 3.8.0
*/
static std::vector<uint8_t> to_cbor(const basic_json& j)
static std::vector<std::uint8_t> to_cbor(const basic_json& j)
{
std::vector<uint8_t> result;
std::vector<std::uint8_t> result;
to_cbor(j, result);
return result;
}
static void to_cbor(const basic_json& j, detail::output_adapter<uint8_t> o)
static void to_cbor(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<uint8_t>(o).write_cbor(j);
binary_writer<std::uint8_t>(o).write_cbor(j);
}
static void to_cbor(const basic_json& j, detail::output_adapter<char> o)
@ -7322,16 +7326,16 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@since version 2.0.9
*/
static std::vector<uint8_t> to_msgpack(const basic_json& j)
static std::vector<std::uint8_t> to_msgpack(const basic_json& j)
{
std::vector<uint8_t> result;
std::vector<std::uint8_t> result;
to_msgpack(j, result);
return result;
}
static void to_msgpack(const basic_json& j, detail::output_adapter<uint8_t> o)
static void to_msgpack(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<uint8_t>(o).write_msgpack(j);
binary_writer<std::uint8_t>(o).write_msgpack(j);
}
static void to_msgpack(const basic_json& j, detail::output_adapter<char> o)
@ -7425,19 +7429,19 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@since version 3.1.0
*/
static std::vector<uint8_t> to_ubjson(const basic_json& j,
static std::vector<std::uint8_t> to_ubjson(const basic_json& j,
const bool use_size = false,
const bool use_type = false)
{
std::vector<uint8_t> result;
std::vector<std::uint8_t> result;
to_ubjson(j, result, use_size, use_type);
return result;
}
static void to_ubjson(const basic_json& j, detail::output_adapter<uint8_t> o,
static void to_ubjson(const basic_json& j, detail::output_adapter<std::uint8_t> o,
const bool use_size = false, const bool use_type = false)
{
binary_writer<uint8_t>(o).write_ubjson(j, use_size, use_type);
binary_writer<std::uint8_t>(o).write_ubjson(j, use_size, use_type);
}
static void to_ubjson(const basic_json& j, detail::output_adapter<char> o,
@ -7503,9 +7507,9 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@sa see @ref to_cbor(const basic_json&) for the related CBOR format
@sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
*/
static std::vector<uint8_t> to_bson(const basic_json& j)
static std::vector<std::uint8_t> to_bson(const basic_json& j)
{
std::vector<uint8_t> result;
std::vector<std::uint8_t> result;
to_bson(j, result);
return result;
}
@ -7518,13 +7522,13 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@pre The input `j` shall be an object: `j.is_object() == true`
@sa see @ref to_bson(const basic_json&)
*/
static void to_bson(const basic_json& j, detail::output_adapter<uint8_t> o)
static void to_bson(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<uint8_t>(o).write_bson(j);
binary_writer<std::uint8_t>(o).write_bson(j);
}
/*!
@copydoc to_bson(const basic_json&, detail::output_adapter<uint8_t>)
@copydoc to_bson(const basic_json&, detail::output_adapter<std::uint8_t>)
*/
static void to_bson(const basic_json& j, detail::output_adapter<char> o)
{

55
single_include/nlohmann/json.hpp
View File

@ -4956,7 +4956,7 @@ struct adl_serializer
// #include <nlohmann/byte_container_with_subtype.hpp>
#include <cstdint> // uint8_t
#include <cstdint> // uint8_t, uint64_t
#include <tuple> // tie
#include <utility> // move
@ -4974,7 +4974,7 @@ order to override the binary type.
@tparam BinaryType container to store bytes (`std::vector<std::uint8_t>` by
default)
@since version 3.8.0
@since version 3.8.0; changed type of subtypes to std::uint64_t in 3.9.2.
*/
template<typename BinaryType>
class byte_container_with_subtype : public BinaryType
@ -5063,7 +5063,8 @@ class byte_container_with_subtype : public BinaryType
@sa see @ref has_subtype() -- returns whether or not the binary value has a
subtype
@since version 3.8.0
@since version 3.8.0; fixed return value to properly return
subtype_type(-1) as documented in version 3.9.2
*/
constexpr subtype_type subtype() const noexcept
{
@ -10783,7 +10784,7 @@ namespace detail
// parser //
////////////
enum class parse_event_t : uint8_t
enum class parse_event_t : std::uint8_t
{
/// the parser read `{` and started to process a JSON object
object_start,
@ -16468,7 +16469,7 @@ class serializer
for (std::size_t i = 0; i < s.size(); ++i)
{
const auto byte = static_cast<uint8_t>(s[i]);
const auto byte = static_cast<std::uint8_t>(s[i]);
switch (decode(state, codepoint, byte))
{
@ -18057,8 +18058,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
#### Notes on subtypes
- CBOR
- Binary values are represented as byte strings. No subtypes are
supported and will be ignored when CBOR is written.
- Binary values are represented as byte strings. Subtypes are serialized
as tagged values.
- MessagePack
- If a subtype is given and the binary array contains exactly 1, 2, 4, 8,
or 16 elements, the fixext family (fixext1, fixext2, fixext4, fixext8)
@ -18652,7 +18653,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@ref number_float_t, and all convertible number types such as `int`,
`size_t`, `int64_t`, `float` or `double` can be used.
- **boolean**: @ref boolean_t / `bool` can be used.
- **binary**: @ref binary_t / `std::vector<uint8_t>` may be used,
- **binary**: @ref binary_t / `std::vector<std::uint8_t>` may be used,
unfortunately because string literals cannot be distinguished from binary
character arrays by the C++ type system, all types compatible with `const
char*` will be directed to the string constructor instead. This is both
@ -24342,6 +24343,10 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
binary | *size*: 65536..4294967295 | byte string (4 bytes follow) | 0x5A
binary | *size*: 4294967296..18446744073709551615 | byte string (8 bytes follow) | 0x5B
Binary values with subtype are mapped to tagged values (0xD8..0xDB)
depending on the subtype, followed by a byte string, see "binary" cells
in the table above.
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a CBOR value.
@ -24382,16 +24387,16 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@since version 2.0.9; compact representation of floating-point numbers
since version 3.8.0
*/
static std::vector<uint8_t> to_cbor(const basic_json& j)
static std::vector<std::uint8_t> to_cbor(const basic_json& j)
{
std::vector<uint8_t> result;
std::vector<std::uint8_t> result;
to_cbor(j, result);
return result;
}
static void to_cbor(const basic_json& j, detail::output_adapter<uint8_t> o)
static void to_cbor(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<uint8_t>(o).write_cbor(j);
binary_writer<std::uint8_t>(o).write_cbor(j);
}
static void to_cbor(const basic_json& j, detail::output_adapter<char> o)
@ -24477,16 +24482,16 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@since version 2.0.9
*/
static std::vector<uint8_t> to_msgpack(const basic_json& j)
static std::vector<std::uint8_t> to_msgpack(const basic_json& j)
{
std::vector<uint8_t> result;
std::vector<std::uint8_t> result;
to_msgpack(j, result);
return result;
}
static void to_msgpack(const basic_json& j, detail::output_adapter<uint8_t> o)
static void to_msgpack(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<uint8_t>(o).write_msgpack(j);
binary_writer<std::uint8_t>(o).write_msgpack(j);
}
static void to_msgpack(const basic_json& j, detail::output_adapter<char> o)
@ -24580,19 +24585,19 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@since version 3.1.0
*/
static std::vector<uint8_t> to_ubjson(const basic_json& j,
static std::vector<std::uint8_t> to_ubjson(const basic_json& j,
const bool use_size = false,
const bool use_type = false)
{
std::vector<uint8_t> result;
std::vector<std::uint8_t> result;
to_ubjson(j, result, use_size, use_type);
return result;
}
static void to_ubjson(const basic_json& j, detail::output_adapter<uint8_t> o,
static void to_ubjson(const basic_json& j, detail::output_adapter<std::uint8_t> o,
const bool use_size = false, const bool use_type = false)
{
binary_writer<uint8_t>(o).write_ubjson(j, use_size, use_type);
binary_writer<std::uint8_t>(o).write_ubjson(j, use_size, use_type);
}
static void to_ubjson(const basic_json& j, detail::output_adapter<char> o,
@ -24658,9 +24663,9 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@sa see @ref to_cbor(const basic_json&) for the related CBOR format
@sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
*/
static std::vector<uint8_t> to_bson(const basic_json& j)
static std::vector<std::uint8_t> to_bson(const basic_json& j)
{
std::vector<uint8_t> result;
std::vector<std::uint8_t> result;
to_bson(j, result);
return result;
}
@ -24673,13 +24678,13 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
@pre The input `j` shall be an object: `j.is_object() == true`
@sa see @ref to_bson(const basic_json&)
*/
static void to_bson(const basic_json& j, detail::output_adapter<uint8_t> o)
static void to_bson(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<uint8_t>(o).write_bson(j);
binary_writer<std::uint8_t>(o).write_bson(j);
}
/*!
@copydoc to_bson(const basic_json&, detail::output_adapter<uint8_t>)
@copydoc to_bson(const basic_json&, detail::output_adapter<std::uint8_t>)
*/
static void to_bson(const basic_json& j, detail::output_adapter<char> o)
{