Libunicode Versions Save

What's Changed

• Allow passing custom LIBUNICODE_UCD_DIR to cmake by @christianparpart in https://github.com/contour-terminal/libunicode/pull/69
• Fix error handling of UTF-8 decoding for incomplete UTF-8 sequences by @christianparpart in https://github.com/contour-terminal/libunicode/pull/71
• Improve naming convention to be more streamlined. by @christianparpart in https://github.com/contour-terminal/libunicode/pull/72
• Move scan_result.next to scan_state.next by @christianparpart in https://github.com/contour-terminal/libunicode/pull/73
• Check md5 of downloaded file by @Yaraslaut in https://github.com/contour-terminal/libunicode/pull/74
• Remove ubuntu 18.04 from github build actions by @Yaraslaut in https://github.com/contour-terminal/libunicode/pull/76
• Problem: Catch2 is always required by @yrashk in https://github.com/contour-terminal/libunicode/pull/75
• Update catch2 to v3 by @topazus in https://github.com/contour-terminal/libunicode/pull/82
• Improved libunicode targets installation by @christianparpart in https://github.com/contour-terminal/libunicode/pull/83
• Fix ARM64 build on Windows by @christianparpart in https://github.com/contour-terminal/libunicode/pull/84
• Allow building with older CMake < 3.18 by @christianparpart in https://github.com/contour-terminal/libunicode/pull/85

New Contributors

• @Yaraslaut made their first contribution in https://github.com/contour-terminal/libunicode/pull/74
• @yrashk made their first contribution in https://github.com/contour-terminal/libunicode/pull/75

Full Changelog: https://github.com/contour-terminal/libunicode/compare/v0.3.0...v0.4.0

0.3.0 (2023-03-01)

• Fixes build error on GCC 13.
• Fixes properly stopping at control characters in complex sub-state in scan API.
• Fixes successful processing invalid UTF-8 in scan API.
• Fixes installing missing headers for use of this API as non-embedded library.
• Changes project and include directory from unicode to libunicode to avoid include path conflict with ICU.
• Adds compile time option to either build static or dynamic binaries (LIBUNICODE_BUILD_STATIC).
• Adds SONAME version to libraries.

• Fixes unicode-query's output for "character width".
• Fixes decoding invalid UTF-8 locking up.
• Fixes stage1 multistage-table sizes, reducing memory footprint a bit.
• Adds SIMD implementation for scan API on ARM64 (NEON).
• unicode-query is now linked statically on UNIX platforms.

• Slightly improve performance of grapheme cluster segmentation.
• Fixes grapheme cluster segmentation of multiple consecutive regional flags.
• Add access to Age property of a codepoint (giving information about at which Unicode version a codepoint was introduced).
• Add access to the assigned name of a codepoint.
• unicode-query: Now also prints name and age properties.
• CMake install target also installs header and library (not just tools).
• Reduce number of dependencies down to fmtlib and (for unit tests) Catch2.
• Enables libunicode to be found via CMake's find_package().
• Improved default installation directories on UNIX via GNUInstallDirs helper.

While version 0.1.0 sounds like a small number, this project is out there since quite some years already and actively used by Contour Terminal.

The biggest movements lately are major performance improvements in accessing Unicode properties, fixing bugs as usual, and apart from being a modern C++ Unicode library, we've now also added a command line tool to query Unicode properties in the hope it'll be useful to you.

This release is also marking a milestone as I'm generally happy about the usefulness, stability, and performance of libunicode and its CLI tool (unicode-query).