Additions

• CMake support added for easier integration into modern build systems (thanks @glebm)
• C++ compatibility for public headers to support mixed-language codebases (thanks @glebm)
• GitHub Actions replaced Travis CI as the CI system (thanks @AJenbo)
• CI now runs on Linux, macOS, and Windows, performing both build and test using CMake and Meson:
  • Linux and macOS workflows use GCC and Clang
  • Windows workflow uses MSVC only
• Valgrind job added in Linux CI using Make to detect uninitialized memory usage
• Public version header <SheenBidi/SBVersion.h> introduced for programmatic version checks
• SB_PUBLIC macro introduced to handle visibility of public functions across platforms
• SB_DEPRECATED macro introduced to annotate deprecated APIs with compiler-specific attributes
• UTF decoding helpers introduced for single code points:
  • SBCodepointDecodeNextFromUTF8
  • SBCodepointDecodePreviousFromUTF8
  • SBCodepointDecodeNextFromUTF16
  • SBCodepointDecodePreviousFromUTF16
• SBScriptGetUnicodeTag(SBScript) introduced to return a single Unicode script tag (4-letter abbreviation) corresponding to the passed-in script, usable with HarfBuzz
• Internal Object class introduced for consistent memory management across all major types (SBAlgorithm, SBParagraph, SBLine, etc.)
• Unified versioning implemented across all build systems using the public version header
• Support for building the library as a DLL on Windows added in both CMake and Meson
• pkg-config support added in both CMake and Meson builds
• Support for running individual test classes added (when the STANDALONE_TESTING macro is defined)
• Dedicated targets for each test class added in CMake and Meson, allowing execution via ctest or meson test

Updates

• SBCodepointSequence now uses a const buffer (thanks @glebm)
• Source tree restructured:
  • Public headers moved to Headers/SheenBidi/
  • Test sources moved to Tests/
• Internal Parser library rewritten to more robustly parse Unicode data files
• General category lookup generator improved using Unicode’s DerivedGeneralCategory.txt
• SBScriptGetOpenTypeTag data updated to match Microsoft’s OpenType script tags (as of 2024‑05‑31)
• SBScriptGetOpenTypeTag marked as deprecated in favor of SBScriptGetUnicodeTag
• Support for default property values of unassigned code points improved using enhanced parsing logic
• Tests added for:
  • RunQueue
  • Script-to-tag conversion (OpenType & Unicode)
  • Bracket matching with canonical equivalence

Fixes

• Fixed [#19]: eliminated uninitialized memory warning in Valgrind by introducing a flags array for BidiLink state tracking
• Canonical bracket equivalence added for code points U+2329 and U+3008
• Test coverage increased to 97% through targeted test additions

• Updated all lookups to Unicode 16.0.0
• Added support for code point ranges in UnicodeData.txt file parser
• Fixed unasigned values in general category lookup

• Updated all lookups to Unicode 15.1.0

• Fixed larger paragraph creation issue when specifying smaller suggested length
• Fixed decreased paragraph boundary issue when specifying smaller suggested length

• Implemented safe allocation for all objects with NULL checks on malloc calls
• Extracted element insertion functions from stack and queue push functions for simplification
• Removed SB prefix from status stack related private structs
• Added support for meson build system

• Updated all lookups to Unicode 14.0

• Used DerivedBidiClass.txt for generating bidi type lookup
• Updated all lookups to Unicode 13.0

• Added support for Appveyor CI
• Updated all lookups to Unicode 12.1
• Revised convention for naming private types and functions

Additions

SBScript:

• OpenType Tag: SBUInt32 SBScriptGetOpenTypeTag(SBScript script)

Updates

• Updated all lookups to Unicode 11.0

Additions

SBCodepoint:

• Bidirectional Type: SBBidiType SBCodepointGetBidiType(SBCodepoint codepoint)
• General Category: SBGeneralCategory SBCodepointGetGeneralCategory(SBCodepoint codepoint)
• Script: SBScript SBCodepointGetScript(SBCodepoint codepoint)

SBAlgorithm:

• Bidirectional Types: const SBBidiType *SBAlgorithmGetBidiTypesPtr(SBAlgorithmRef algorithm)

SBScriptLocator:

• Facilitates to find out script runs sequentially, as specified in UAX #24

Updates

• Used const agent in SBMirrorLocator to avoid undesired mutations.
• Used signed indexes to track boundary elements in custom stack and queue implementations.
• Changed bidi type of unspecified code points from L to ON.
• Added lookup postfix in Unicode tester files.

Fixes

• Fixed minor compiler warnings.
• Made minor clarifications in the documentation.