Release 0.99.8.2

0.99.8.2

New features

• Added json functions push_back and insert for appending values
  to the end of a json array and inserting values at a specifed position

Rationale: While these functions provide the same functionality as the existing
json::add function, they have the advantage of following the naming conventions
of the C++ library, and have been given prominence in the examples and documentation
(add is still supported.)

0.99.8.1

New features

• cbor extension supports encoding to and decoding from the cbor binary serialization format.

• json_type_traits supports std::valarray

Documentation

• Documentation is now in the repository itself. Please see the documentation
  link in the README.md file

Changed

• Removed CharT template parameter from json_stream_traits

Release 0.99.8

Changes

• Visual Studio 2013 is no longer supported (jsonpath uses string initilizer lists)

• json_input_handler overloaded functions value(value,context)have been deprecated. Instead usestring_value(value,context), integer_value(value,context), uinteger_value(value,context), double_value(value,precision,context), bool_value(value,context)andnull_value(context)`

• json_output_handler overloaded functions value(value)have been deprecated. Instead usestring_value(value), integer_value(value), uinteger_value(value), double_value(value,precision=0), bool_value(value)andnull_value(context)`

• For consistency, the names jsoncons_ext/msgpack/message_pack.hpp,
  encode_message_pack and decode_message_pack have been deprecated and
  replaced with jsoncons_ext/msgpack/msgpack.hpp, encode_msgpack and decode_msg_pack

Bug fixes

• Fixed operator== throws when comparing a string against an empty object

• Fixed jsonpath issue with array 'length' (a.length worked but not a['length'])

• msgpack extension uses intrinsics for determing whether to swap bytes

New features

• Stream supported C++ values directly to JSON output, governed by json_stream_traits

• json::is() and json::as() accept template packs, which they forward to the
  json_type_traits is and as functions. This allows user defined json_type_traits
  implementations to resolve, for instance, a name into a C++ object looked up from a
  registry. See Type Extensibility, Example 2.

• jsonpath json_query now supports returning normalized paths (with
  optional return_type::path parameter)

• New jsonpath max and min aggregate functions over numeric values

• New json::merge function that inserts another json object's key-value pairs
  into a json object, if they don't already exist.

• New json::merge_or_update function that inserts another json object's key-value
  pairs into a json object, or assigns them if they already exist.

Release 0.99.7.3

• json_type_traits supports std::pair (convert to/from json array of size 2)

• parse_stream renamed to parse (backwards compatible)

• kvp_type renamed to key_value_pair_type (backwards compatible)

• The _json and _ojson literal operators have been moved to the namespace jsoncons::literals.
  Access to these literals now requires

    using namespace jsoncons::literals;    

Rationale: avoid name clashes with other json libraries

• The name owjson has been deprecated (still works) and changed to wojson. Rationale: naming consistency

• Added json array functions emplace_back and emplace, and json object functions try_emplace
  and insert_or_assign, which are analagous to the standard library vector and map functions.

Release 0.99.7.2

Bug fix

• A bug was introduced in 0.99.7 causing the values of existing object members to not be changed with set or assignment operations. This has been fixed.

Change

• jsoncons_ext/binary changed to jsoncons_ext/msgpack
• namespace jsoncons::binary changed to jsoncons::msgpack

Release 0.99.7.1

0.99.7.1

---

• Workarounds in unicode_traits and jsonpath to maintain support for vs2013
• Added mapping_type::n_rows, mapping_type::n_objects, and mapping_type::m_columns options for csv to json

0.99.7

Bug fixes

• Issues with precedence in JsonPath filter evaluations have been fixed
• An issue with (a - expression) in JsonPath filter evaluations has been fixed

New feature

• The new binary extension supports encoding to and decoding from the MessagePack binary serialization format.
• An extension to JsonPath to allow filter expressions over a single object.
• Added support for * and / operators to jsonpath filter
• literal operators _json and _ojson have been introduced

Non-breaking changes

• The json write functions have been renamed to dump. The old names have been deprecated but still work.
• Support for stateful allocators
• json function object_range() now returns a pair of RandomAccessIterator (previously BidirectionalIterator)
• json operator [size_t i] applied to a json object now returns the ith object (previously threw)

Breaking change (if you've implemented your own input and output handlers)

In basic_json_input_handler, the virtual functions

virtual void do_name(const CharT* value, size_t length, 
                     const basic_parsing_context<CharT>& context)

virtual void do_string_value(const CharT* value, size_t length, 
                             const basic_parsing_context<CharT>& context)

have been changed to

virtual void do_name(string_view_type val, 
                     const basic_parsing_context<CharT>& context) 

virtual void do_string_value(string_view_type val, 
                             const basic_parsing_context<CharT>& context) 

In basic_json_output_handler, the virtual functions

virtual void do_name(const CharT* value, size_t length) 

virtual void do_string_value(const CharT* value, size_t length) 

have been changed to

virtual void do_name(string_view_type val)

virtual void do_string_value(string_view_type val)

Removed features:

• The jsonx extension has been removed

Release 0.99.5

• Validations added to utf8 and utf16 string parsing to pass all JSONTestSuite tests
• The name json_encoder introduced in 0.99.4 has been changed to json_decoder. Rationale: consistencty with common usage (encoding and serialization, decoding and deserialization)

Release 0.99.3a

0.99.3a

Changes

The json initializer-list constructor has been removed, it gives inconsistent results when an initializer has zero elements, or one element of the type being initialized (json). Please replace

json j = {1,2,3} with json j = json::array{1,2,3}, and

json j = {{1,2,3},{4,5,6}} with json j = json::array{json::array{1,2,3},json::array{4,5,6}}

• Initializer-list constructors are now supported in json::object as well as json::array, e.g.

json j = json::object{{"first",1},{"second",json::array{1,2,3}}};

• json::any has been deprecated and will be removed in the future
• The json method to_stream has been renamed to write, the old name is still supported.
• output_format object_array_block_option, array_array_block_option functions have been deprecated and replaced by
  object_array_split_lines, array_array_split_lines functions.

Enhancements

• A new method get_with_default, with return type that of the default, has been added to json
• A new template parameter, JsonTraits, has been added to the basic_json class template.
• New instantiations of basic_json, ojson and wojson, have been added for users who wish to preserve the alphabetical sort of parsed json text and to insert new members in arbitrary name order.
• Added support for json is<T>, as<T>, constructor, and assignment operator for any sequence container (std::array, std::vector, std::deque, std::forward_list, std::list) whose values are assignable to JSON types (e.g., ints, doubles, bools, strings, STL containers of same) and for associative containers (std::set, std::multiset, std::unordered_set, std::unordered_multiset.)
• Added static method null() to json class to return null value
• A new extension jsonx that supports serializing JSON values to JSONx (XML)
• json parser will skip bom in input if present

Fixes:

• Fixes to the jsonpath extension, including the union operator and applying index operations to string values
• Fixes to remove warnings and issues reported by VS2015 with 4-th warnings level, PVS-Studio static analyzer tool, and UBSAN.

Release 0.99.2

• Included workaround for a C++11 issue in GCC 4.8, contributed by Alex Merry

• Fixed operator== so that json() == json(json::object())

• Fixed issue with json assignment to initializer list

• Fixed issue with assignment to empty json object with multiple keys, e.g.

  json val;
  val["key1"]["key2"] = 1;

Release 0.99.1

• Fix to json_filter class
• Fix to readme_examples

Release 0.99

• Fixes to deprecated json parse functions (deprecated, but still supposed to work)
• The Visual C++ specific implementation for reading floating point numbers should have freed a _locale_t object, fixed
• Added json_type_traits specialization to support assignment from non-const strings
• When parsing fractional numbers in text, floating point number precision is retained, and made available to serialization to preserve round-trip. The default output precision has been changed from 15 to 16.
• Added json std::initializer_list constructor for constructing arrays
• The deprecated json member constants null, an_object, and an_array have been removed
• Microsoft VC++ versions earlier than 2013 are no longer supported