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Update to Unicode 17.0 #56

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2 changes: 1 addition & 1 deletion CHANGELOG.md
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* Implemented collection and object attribute directives. The new `collect<C>[e]` directive synthesizes a sequence or associative container type `C` consisting of elements gathered from the inherited or synthesized attributes in expression `e`. Likewise, there also new `synthesize<C,A...>[e]`, `synthesize_shared<C,A...>[e]` and `synthesize_unique<C,A...>[e]` directives for synthesizing objects, shared pointers and unique pointers respectively, constructed from the component attributes in expression `e`.
* Implemented `synthesize_collect` directive that combines `collect` and `synthesize` directives together for improved code readability and reduced boilerplate when constructing complex data structures from parsed elements. This is particularly useful for building nested collections like arrays of objects or maps with complex value types.
* Added `lug::recursive_wrapper` template class for handling circular dependencies in abstract syntax trees, particularily those making use of `std::variant`.
* Updated to Unicode Standard Version 16.0.0 and added support for building tools to CMakeLists.txt.
* Updated to Unicode Standard Version 17.0.0 and added support for building tools to CMakeLists.txt.
* Optimized character range and rune set matching for ASCII characters, resulting in significant performance improvements for common text processing operations. Added specialized fast paths for ASCII-only inputs that bypass the more expensive Unicode handling code.
* Implemented test opcodes for head-fail optimization and repeat opcodes for optimized whitespace skipping. These optimizations will be fully enabled in the next release after planned expression tree transformations.
* Enhanced input source handling with improved buffering and error reporting for `std::istream` sources, and improved the interactive mode support that properly handles line-by-line input for terminal sessions or for line-oriented grammars.
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