v0.9.4

libfyaml v0.9.4

A major release adding full native Windows support and moving comment handling out of experimental status.

Major: Full Windows Support

libfyaml now builds and runs natively on Windows with full support for MSVC, clang-cl, and Clang compilers.

Native Windows Builds

• Full support for MSVC (32-bit and 64-bit)
• clang-cl and Clang support
• Works with Visual Studio, VSCode, and other Windows IDEs
• All tests pass on Windows

Cross-Compilation from Linux

Using msvc-wine you can build Windows binaries from Linux:

# Compile using cl.exe via Wine
cmake -DMSVC_WINE_DIR=/path/to/msvc -DMSVC_WINE_COMPILER=cl ..

# Compile using clang-cl without Wine
cmake -DMSVC_WINE_DIR=/path/to/msvc -DMSVC_WINE_COMPILER=clang-cl ..

# Compile using Clang cross-compilation
cmake -DMSVC_WINE_DIR=/path/to/msvc -DMSVC_WINE_COMPILER=clang ..

Major: Comment Support Now Stable

Comment parsing and emission has been moved out of experimental status. Comments can now be reliably preserved and manipulated through the API.

New Features

API Additions

• fy_node_set_style(): Set the style of a node (block, flow, plain, etc.) - Fixes #78
• fy_token_set_comment(): Attach comments to tokens programmatically
• fy_event_to_string(): Convert events to string representation
• fy_diag_get_collect_errors(): Query if error collection is enabled
• fy_atom_lines_containing(): Get lines containing an atom (useful for diagnostics)

Build System

• New CMake-based GitHub Actions CI workflow
• Improved build matrix coverage
• Emscripten platform support

Bug Fixes

Critical Fixes

• #193: Token creation now properly clears memory (prevents UB on invalid input)
• #186: Reference loop nesting now respected when checking link validity
• #185: Fixed crash when setting document root to NULL; input size clamping fix
• #184, #182: Walk expression bugs with improved debug infrastructure
• #183, #191: Early error on FYECF_EXTENDED_CFG with helper emit methods
• #181: Walk double-free on node delete
• #178, #177: Walk error path handling for recursive alias resolution
• #176: Off-by-one error in fy_accel_grow
• #175: Parser crash on corrupted UTF-8 at end of file
• #174: Superfluous document end marker with version/tag directives
• #173, #172: Depth limit for node copy (prevents stack overflow)
• #143: Document root now correctly marked as attached

Other Fixes

• Emit state reset at end of document (fixes multi-document streams)
• Flow quoting error on ANY style
• Empty file/stream handling on various platforms
• Removed notice for multiple alias declarations (valid YAML)

Platform Support

Supported platforms: Linux, macOS, FreeBSD, OpenBSD, NetBSD, and Windows.

Windows-Specific

• Full native MSVC support (32-bit and 64-bit)
• Fixed intrinsics for 32-bit builds
• Proper CRLF (DOS line ending) handling
• msvc-wine cross-compilation support

Portability Improvements

• Fixed void pointer arithmetic (strict C compliance)
• Fixed GCC ternary extension (x ? : y)
• Fixed \e escape sequence
• Fixed mremap page alignment (BSD crash fix)

macOS

• Fixed ASAN support (link-time flags)
• Apple clang alloca poisoning workaround

Statistics

• 58 commits since v0.9.3
• 18 bug fix issues closed
• Full Windows platform support added

Installation

From Source

# CMake (all platforms including Windows)
mkdir build && cd build
cmake ..
cmake --build .
cmake --install .

# Autotools (Unix-like systems)
./bootstrap.sh
./configure
make
sudo make install

Using CMake

find_package(libfyaml 0.9.4 REQUIRED)
target_link_libraries(your_app PRIVATE libfyaml::libfyaml)

Resources

• Changelog: CHANGELOG.md
• Documentation: https://pantoniou.github.io/libfyaml/
• Repository: https://github.com/pantoniou/libfyaml
• Issues: https://github.com/pantoniou/libfyaml/issues

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Full Changelog: v0.9.3...v0.9.4