tomlplusplus/CHANGELOG.md

# Changelog

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## [vX.X.X](https://github.com/osgenic/stim/releases/tag/vX.X.X) - YYYY-MM-DD

#### Fixes:
#### Additions:
#### Changes:
#### Removals:
#### Build system:

-->



## Unreleased

This release will be a major version bump, so it's ABI breaks all around.
Any changes that might cause code or build systems to break are indicated with ⚠&#xFE0F;.

Highlights are indicated with ❤&#xFE0F;.

#### Fixes:
- ⚠&#xFE0F; fixed `toml::table` init-list constructor requiring double-brackets
- ⚠&#xFE0F; fixed `TOML_API` + extern templates causing linker errors in some circumstances
- ⚠&#xFE0F; fixed incorrect `noexcept` specifications on many functions
- ⚠&#xFE0F; fixed missing `TOML_API` on some interfaces
- fixed `toml::json_formatter` not formatting inf and nan incorrectly
- fixed a number of spec conformance issues (#127, #128, #129, #130, #131, #132) (@moorereason)
- fixed an illegal table redefinition edge case (#112) (@python36)
- fixed documentation issues
- fixed incorrect handling of vertical whitespace in keys when printing TOML to streams
- fixed incorrect source position in redefinition error messages
- fixed memory leak during parse failures when compiled using GCC (#123, #124) (@rsmmr, @ronalabraham)
- fixed missing `#include <initializer_list>`
- fixed missing `#include <utility>`
- fixed parser not correctly round-tripping the format of binary and octal integers in some cases
- fixed some incorrect unicode scalar sequence transformations (#125)
- fixed strong exception guarantee edge-cases in `toml::table` and `toml::array`

#### Additions:
- ❤&#xFE0F; added `operator->` to `toml::value` for class types
- ❤&#xFE0F; added `toml::at_path()`, `toml::node::at_path()` and `toml::node_view::at_path()` for qualified path-based lookups (#118) (@ben-crowhurst)
- ❤&#xFE0F; added `toml::key` - provides a facility to access the source_regions of parsed keys (#82) (@vaartis)
- ❤&#xFE0F; added `toml::yaml_formatter`
- ❤&#xFE0F; added support for Unicode 14.0
- added `parse_benchmark` example
- added `toml::array::at()` (same semantics as `std::vector::at()`)
- added `toml::array::prune()`
- added `toml::array::replace()` (#109) (@LebJe)
- added `toml::array::resize()` param `default_init_flags`
- added `toml::date_time` converting constructors from `toml::date` and `toml::time`
- added `toml::format_flags::allow_binary_integers`
- added `toml::format_flags::allow_hexadecimal_integers`
- added `toml::format_flags::allow_octal_integers`
- added `toml::format_flags::allow_real_tabs_in_strings`
- added `toml::format_flags::allow_unicode_strings`
- added `toml::format_flags::indent_array_elements` (#120) (@W4RH4WK)
- added `toml::format_flags::indent_sub_tables` (#120) (@W4RH4WK)
- added `toml::format_flags::quote_infinities_and_nans`
- added `toml::is_key<>` and toml::is_key_or_convertible<>` metafunctions
- added `toml::node_view::operator==`
- added `toml::table::at()` (same semantics as `std::map::at()`)
- added `toml::table::emplace_hint()` (same semantics as `std::map::emplace_hint()`)
- added `toml::table::lower_bound()` (same semantics as `std::map::lower_bound()`)
- added `toml::table::prune()`
- added `toml::value` copy+move constructor overloads with flags override
- added `TOML_ENABLE_FORMATTERS` option
- added clang's enum annotation attributes to all enums
- added magic `toml::value_flags` constant `toml::preserve_source_value_flags`
- added value flags to array + table insert methods (#44) (@levicki)

#### Changes:
- ⚠&#xFE0F; `toml::format_flags` is now backed by `uint64_t` (was previously `uint8_t`)
- ⚠&#xFE0F; `toml::source_index` is now an alias for `uint32_t` unconditionally (was previously dependent on `TOML_LARGE_FILES`)
- ⚠&#xFE0F; `toml::table` now uses `toml::key` as the key type (was previously `std::string`)
- ⚠&#xFE0F; `toml::value_flags` is now backed by `uint16_t` (was previously `uint8_t`)
- ⚠&#xFE0F; made all overloaded operators 'hidden friends' where possible
- ⚠&#xFE0F; renamed `toml::default_formatter` to `toml::toml_formatter` (`toml::default_formatter` is now an alias)
- ⚠&#xFE0F; renamed `TOML_PARSER` option to `TOML_ENABLE_PARSER` (`TOML_PARSER` will continue to work but is deprecated)
- ⚠&#xFE0F; renamed `TOML_UNRELEASED_FEATURES` to `TOML_ENABLE_UNRELEASED_FEATURES` (`TOML_UNRELEASED_FEATURES` will continue to work but is deprecated)
- ⚠&#xFE0F; renamed `TOML_WINDOWS_COMPAT` to `TOML_ENABLE_WINDOWS_COMPAT` (`TOML_WINDOWS_COMPAT` will continue to work but is deprecated)
- ❤&#xFE0F; `toml::node::ref()` now supports explicit ref categories and cv-qualifiers
- ❤&#xFE0F; applied clang-format to all the things 🎉&#xFE0F;
- exposed `TOML_NAMESPACE_START` and `TOML_NAMESPACE_END` macros to help with ADL specialization scenarios
- improved performance of parser
- made date/time constructors accept any integral types
- moved all implementation headers to `/impl`
- renamed all implementation headers to `.h` and 'source' headers to `.inl`
- updated conformance tests

#### Removals:
- ⚠&#xFE0F; removed `toml::format_flags::allow_value_format_flags`
- ⚠&#xFE0F; removed `TOML_LARGE_FILES` (it is now default - explicitly setting `TOML_LARGE_FILES` to `0` will invoke an `#error`)
- removed unnecessary template machinery (esp. where ostreams were involved)
- removed unnecessary uses of `final`

#### Build system:
- ⚠&#xFE0F; increased minimum required meson version to `0.54.0`
- disabled 'install' path when being used as a meson subproject (#114) (@Tachi107)
- fixed builds failing with meson 0.6.0 (#117) (@Tachi107)
- general meson improvements and fixes (#115) (@Tachi107)
- used `override_dependency` where supported (#116) (@Tachi107)



## [v2.5.0](https://github.com/osgenic/stim/releases/tag/v2.5.0) - 2021-07-11

#### Fixes:
- fixed linkage error with windows compat mode 
- fixed `TOML_CONSTEVAL` broken in MSVC (again)
- fixed minor documentation bugs
- fixed cmake project version being incorrect (#110) (@GiulioRomualdi)

#### Additions:
- added support for lowercase 't' and 'z' in datetimes (per spec) 
- added natvis file to cmake install (#106) (@Ryan-rsm-McKenzie)
- added VS cpp.hint file to cmake install
- added metafunctions `is_container`, `is_chronological`, `is_value`, `is_node`, `inserted_type_of`

#### Changes:
- improved debug code size by removing unnecessary std::forwards and std::moves
- modernized the CMake build files (#102, #103, #105) (@friendlyanon) 
- updated conformance tests



## [v2.4.0](https://github.com/osgenic/stim/releases/tag/v2.4.0) - 2021-05-19

#### Fixes:
- fixed `node::value()` not retrieving inf and nan correctly
- fixed dotted kvps being unable to add subtables (#61) (@Validark)
- fixed linker error on linux ICC (#83) (@blackwer)
- fixed segfault JSON-formatting a failed `parse_result` (#96) (@proydakov)
- fixed spurious newline after JSON formatting a table
- fixed VS intellisense not detecting `TOML_COMPILER_EXCEPTIONS` correctly
- fixed crash with pathologically-nested inputs (#100) (@geeknik)
- fixed `parse_result` natvis
- fixed false-positive `char8_t` support detection on older compilers
- fixed unnecessary `#include <Windows.h>` Windows builds (@BeastLe9enD)
- fixed `TOML_CONSTEVAL` breaking on VS 16.10.0pre2
- fixed spurious warnings with MSVC /Wall
- fixed missing blank lines between consecutive empty tables/A-o-T
- fixed unnecessary `TOML_API` declarations
- fixed many small documentation issues

#### Additions:
- added proper cmake support (#85) (@ClausKlein)
- added cmake FetchContent information to documentation (#101) (@proydakov)

#### Removals:
- removed explicit `#include <fstream>` requirement for `parse_file()`



## [v2.3.0](https://github.com/osgenic/stim/releases/tag/v2.3.0) - 2020-12-29

#### Fixes:
- fixed compiler errors caused by `<charconv>` with Apple-flavoured clang
- fixed array and table iterators missing `iterator_category` (#77) (@HazardyKnusperkeks)
- fixed `Wuseless-cast` warnings on GCC 10 (#75) (@HazardyKnusperkeks)
- fixed formatter not correctly line wrapping in some rare circumstances (#73) (@89z)
- fixed an unnecessary global compiler flag breaking builds when used as a meson subproject (#72) (@jamabr)
- fixed link error caused by `<charconv>` on emscripten (#71) (@suy)
- fixed ambiguity with the `toml::literals` inline namespace (#69) (@std-any-emplace)
- fixed formatter emitting superfluous newlines after printing tables (#68) (@std-any-emplace)
- fixed array and table iterators not converting between const and non-const versions of themselves (#67) (@std-any-emplace)
- fixed some parser crashes when given pathologically-malformed UTF-8 (#65) (@sneves)



## [v2.2.0](https://github.com/osgenic/stim/releases/tag/v2.2.0) - 2020-08-09

#### Fixes:
- fixed some issues building with VS2017 (#55) (@sobczyk)
- fixed `_Float16` erroneously detected as supported on g++ (#57) (@sobczyk)
- fixed `<Windows.h>` causing compilation failure on mingw (#63) (@rezahousseini)
- fixed CMake and pkg-config files not being installed into architecture-agnostic directories (#59) (@tambry)
- fixed memory leak during parsing (#64) (@sneves)
- fixed ambiguous `operator==` error on MSVC (#56) (@HellsingDarge)

#### Additions:
- added additional node_view constructors
- added ability to specify serialization format of integer values
- added integer value serialization format round trip (e.g. hex in, hex out)

#### Changes:
- updated conformance tests
- TOML version bump to v1.0.0-rc.3
- refactors and cleanups based on feedback given [here](https://medium.com/@julienjorge/code-review-of-toml-f816a6071120)

#### Build system:
- renamed build options to `snake_case`
- tests, examples and cmake config now explicitly disabled when used as a subproject
- removed small_binaries (it's now implicit when building as release)
- bumped minimum meson version to 0.53



## [v2.1.0](https://github.com/osgenic/stim/releases/tag/v2.1.0) - 2020-07-11

#### Fixes:
- fixed inconsistent emission of leading/trailing newlines when writing a table to an ostream (#48) (@levicki)
- fixed `Wcast-align` warning spam on ARM
- fixed `array::insert` not working correctly in some cases
- fixed `node::value_or()` not having the same semantics as `node::value()` (#50) (@whiterabbit963)
- fixed 'misleading assignment' of rvalue node_views (#52) (@Reedbeta)
- fixed some issues handling infinities and NaNs (#51) (@Reedbeta)
- fixed some minor documentation issues

#### Additions:
- added support for `__fp16`, `_Float16`, `__float128`, `__int128_t` and `__uint128_t`
- added copy construction/assignment for arrays, tables and values 
- added insert, emplace, push_back etc. compatibility with node_views
- added `node::is_homogenous`
- added `table::is_homogenous`
- added `value::is_homogenous` (just for generic code's sake)
- added `is_homogenous` overload for identifying failure-causing element
- added implicit conversion operator from `node` to `node_view` (#52) (@Reedbeta)

#### Changes:
- renamed `TOML_ALL_INLINE` to `TOML_HEADER_ONLY` (the old name will still work, but is no longer documented)
- general cleanup



## [v2.0.0](https://github.com/osgenic/stim/releases/tag/v2.0.0) - 2020-07-20

This release contains a fairly significant number of 'quality of life' improvements, yay! But also necessitates an ABI
break (hence the version number bump). Changes that might block a migration are annotated with ⚠&#xFE0F;.

#### Fixes:
- fixed infinity and NaN-related code breaking when using `-ffast-math` and friends
- fixed narrowing conversion warnings when constructing int values from unsigned
- fixed Visual Studio debugger native visualizations for `date`, `time`, `time_offset`, `date_time`
- fixed some static assert messages being badly formatted on clang
- fixed internal macro `assert_or_assume` leaking out of `toml_parser.hpp`

#### Additions:
- added additional types allowed in `node::value()` and `node::value_or()` ([see `value()` dox for examples](https://marzer.github.io/tomlplusplus/classtoml_1_1node.html#ab144c1ae90338b6b03f6af0574c87993))
- added additional types allowed in `node_view::value()` and `node_view::value_or()`
- added `node::value_exact()` and `node_view::value_exact()`
- added support for interop with wide strings on Windows:
    - added wide-string path arg overloads of `parse()` and `parse_file()`
    - added wide-string support to all relevant `table` and `array` ops
    - added wide-string support to `node::value(), node::value_or()`
    - added wide-string support to `node_view::value(), node_view::value_or()`
	- added wide-string support to `value<string>` constructor
    - added wide-string overloads of `node_view::operator[]`
    - added `source_region::wide_path()`
    - added `TOML_WINDOWS_COMPAT` switch for explicitly enabling/disabling this stuff
- added emission of 'literal' strings to the TOML serializer
- added lots of minor documentation fixes and improvements
- added Visual Studio debugger native visualizations for `table`, `array`, `parse_result`, and `parse_error` (#46) (@Reedbeta)
- added non-template version of `array::is_homogeneous()`
- added explicit instantiations of more template types when `!TOML_ALL_INLINE`

#### Changes:
- ⚠&#xFE0F; deprecated `parse_result::get()` in favour of `parse_result::table()`
- ⚠&#xFE0F; deprecated `node_view::get()` in favour of `node_view::node()`
- ⚠&#xFE0F; simplified internal ABI namespaces
- improved the quality of many static_assert error messages

#### Removals:
- ⚠&#xFE0F; renamed `date_time::time_offset` to just 'offset'
- ⚠&#xFE0F; removed `TOML_CHAR_8_STRINGS` since it no longer makes sense



## [v1.3.3](https://github.com/osgenic/stim/releases/tag/v1.3.3) - 2020-06-29

#### Fixes:
- fixed some minor TOML spec conformance bugs
- fixed BOM check causing EOF on very short iostream inputs
- fixed `std::numeric_limits::max()` getting broken by macros in some environments
- fixed 'unknown pragma' warning spam in older versions of GCC
- fixed a few minor documentation issues

#### Additions:
- added rvalue overload of `array::flatten`
- added conformance tests from `BurntSushi/toml-test` and `iarna/toml-spec-tests`
- added `toml::inserter` as a workaround for nested construction of single-element `toml::arrays` performing move-construction instead
- added license boilerplate to test files

#### Changes:
- refactored the parser to reduce binary size



## [v1.3.2](https://github.com/osgenic/stim/releases/tag/v1.3.2) - 2020-06-19

#### Fixes:
- fixed single-digit negative integers parsing as positive
- fixed parse failure when parsing an empty file
- fixed multi-line strings being allowed in keys
- fixed overflow for very long binary integer literals

#### Changes:
- improved the performance of toml::parse_file
- improved the performance of printing to streams for deepy-nested TOML data



## [v1.3.0](https://github.com/osgenic/stim/releases/tag/v1.3.0) - 2020-06-02

#### Fixes:
- fixed `formatter::print_inline()` causing compilation failures in DLL builds
- fixed BOMs occasionally causing overflow/crash in char8 mode
- fixed some spurious warnings in GCC 10
- fixed clang static analyzer warning in BOM handling code

#### Additions:
- added `table_iterator::operator ->`
- added `array::resize()` and `array::truncate()`
- added `array::capacity()`, `array::shrink_to_fit()`, `array::max_size()`
- added non-const -> const conversion for table and array iterators

#### Changes:
- renamed table iterator proxy pair members to `first` and `second` to match STL



## [v1.2.5](https://github.com/osgenic/stim/releases/tag/v1.2.5) - 2020-04-24

#### Fixes:
- fixed some multi-line string parsing issues
- fixed pedantic warnings on gcc 10 and clang 11
- fixed `is_unicode_XXXXXX` functions being wrong in some cases
- fixed `TOML_LIKELY` not being correct on older versions of gcc and clang
- fixed minor documentation issues (#26, #38) (@prince-chrismc)

#### Additions:
- added additional error message cases to the parser
- added `error_printer` example
- added `toml_generator` example

#### Changes:
- improved unicode-related codegen



## [v1.2.3](https://github.com/osgenic/stim/releases/tag/v1.2.3) - 2020-04-11

#### Fixes:
- fixed printing of inf and nan
- fixed parser not handling floats with leading '.' characters
- fixed pedantic vtable warnings on clang with -Weverything
- fixed a number of documentation bugs
- fixed `TOML_UNRELEASED_FEATURES` default being 1 (it should have been 0)

#### Additions:
- added `TOML_PARSER` configuration option
- added `TOML_LIB_SINGLE_HEADER` indicator
- added doxygen page for the configuration options
- added SPDX-License-Identifiers around the place

#### Changes:
- split some header files up to make future maintenance easier
- refactored and greatly simplified parser



## [v1.2.0](https://github.com/osgenic/stim/releases/tag/v1.2.0) - 2020-04-07

#### Fixes:
- fixed some parsing and printing ops being locale-dependent
- fixed some parsing errors at EOF when `TOML_EXCEPTIONS = 0`
- fixed some unreferenced variable warnings on older compilers
- fixed some 'maybe-uninitialized' false-positives on GCC9
- fixed pkgconfig subdir being wrong 

#### Additions:
- added support for implementations without `<charconv>`
- added cmake package config generator (#22) (@GiulioRomualdi)
- added build config feature option `GENERATE_CMAKE_CONFIG`
- added many new tests



## [v1.1.0](https://github.com/osgenic/stim/releases/tag/v1.1.0) - 2020-04-03

#### Fixes:
- fixed some parser error paths not returning early enough `TOML_EXCEPTIONS=0` 
- fixed a number of minor documentation issues

#### Additions:
- added support for [TOML 1.0.0-rc.1](https://github.com/toml-lang/toml/releases/tag/v1.0.0-rc.1) 🎉 
- added `operator[]`, `begin()`, `end()` to `toml::parse_result` for `TOML_EXCEPTIONS=0`
- added additional compilation speed improvements for `TOML_ALL_INLINE=0`
- added more specific error messages for parsing errors relating to prohibited codepoints
- added a large number of additional tests
- added support for installation with meson (#16) (@ximion)
- added the array and table iterators to the `toml` namespace



## [v1.0.0](https://github.com/osgenic/stim/releases/tag/1.0.0) - 2020-03-28

#### Fixes:
- fixed minor documentation issues

#### Changes:
- refactoring of ABI-based inline namespaces



## [v0.6.0](https://github.com/osgenic/stim/releases/tag/v0.6.0) - 2020-03-24

#### Fixes:
- fixed minor preprocessor/macro issues
- fixed minor documentation issues

#### Additions:
- added `<cassert>` include directly in 'debug' builds when `TOML_ASSERT` isn't defined
- added Clang's `[[trivial_abi]]` attribute to `date`, `time`, `time_offset`



## [v0.5.0](https://github.com/osgenic/stim/releases/tag/v0.5.0) - 2020-03-18

#### Fixes:
- fixed crash when reaching EOF while parsing a string when exceptions are disabled
- fixed some attribute warnings in GCC
- fixed build with GCC 8.2.0 (#15) (@shdnx)
- fixed exception mode detection sometimes being incorrect on MSVC
- fixed compilation on older implementations without `std::launder`
- fixed `json_formatter` type deduction on older compilers

#### Additions:
- added support for Unicode 13.0
- added support for `\xHH` escape sequences ([toml/pull/796](https://github.com/toml-lang/toml/pull/796))
- added short-form license preamble to all source files
- added build configuration option for compiling examples



## [v0.4.3](https://github.com/osgenic/stim/releases/tag/v0.4.3) - 2020-03-10

#### Fixes:
- fixed ICE in VS2019 when using `/std:c++17` instead of `/std:c++latest

#### Additions:
- added `#error` when `TOML_EXCEPTIONS` is set to `1` but compiler exceptions were disabled

#### Changes:
- parsing performance improvements



## [v0.4.0](https://github.com/osgenic/stim/releases/tag/v0.4.0) - 2020-03-05

#### Fixes:
- fixed `parse_file()` failing to compile with plain string literals
- fixed tests being built when used as a meson subproject (#14) (@shdnx)

#### Additions:
- added support for compiling into DLLs on windows (`TOML_API`)
- added support for explicitly setting the `TOML_EXCEPTION` mode
- added `TOML_OPTIONAL_TYPE` customization point
- added `node::ref()` and `node_view::ref()`



## [v0.3.0](https://github.com/osgenic/stim/releases/tag/v0.3.0) - 2020-03-01

#### Fixes:
- fixed some pedantic clang warnings
- fixed some minor documentation errors

#### Additions:
- added `node::value()` and `node::value_or()`
- added `node_view::value()`
- added relops for the date/time classes
- added `TOML_ALL_INLINE` and `TOML_IMPLEMENTATION` options
- added preliminary support for ICC

#### Removals:
- removed `<cmath>` dependency



## [v0.2.1](https://github.com/osgenic/stim/releases/tag/v0.2.1) - 2020-02-26

#### Fixes:
- fixed minor printing bug in `operator<<(ostream, source_position)`
- fixed minor documentation issues

#### Additions:
- added `operator<<(ostream&, parse_error)`

#### Changes:
- improved quality of error messages for boolean and inf/nan parsing



## [v0.2.0](https://github.com/osgenic/stim/releases/tag/v0.2.0) - 2020-02-23

#### Fixes:
- fixed truncation of floating-point values when using ostreams
- fixed missing value deduction guides for dates and times
- fixed potential ODR issues relating to exception mode handling etc.
- fixed some documentation issues

#### Additions:
- added serialization round-trip tests
- added `node::is_number()`
- added `node_view::is_number()`
- added `node_view::value_or()`
- added hexfloat parsing support for all implementations (not just `<charconv>` ones)



## [v0.1.0](https://github.com/osgenic/stim/releases/tag/v0.1.0) - 2020-02-20

- First public release, yay! 🎉&#xFE0F;