libfyaml-0.9.2

[Bruce Dubbs]

New point version.

[Xi Ruoyao]

I cannot get it build: ​https://github.com/pantoniou/libfyaml/issues/156

Maybe a workaround is building w/o --disable-static but instead removing the .a file after installation.

[Bruce Dubbs]

Building without --disable-static works fine. I think we should just:

rm -fv /usr/lib/libfyaml.{a,la}

after install.

[Bruce Dubbs]

libfyaml v0.9.1

This is libfyaml v0.9.1, a significant maintenance release focused on licensing clarity, performance, stability, and build system modernization. Critical: Now Fully MIT Licensed

This release removes all GPL-licensed code from libfyaml. The previous GPL list implementation has been replaced with a clean-room MIT-licensed version. The entire library is now consistently MIT licensed without any GPL components, making it suitable for use in commercial and proprietary projects without any licensing concerns.

Performance Highlights

• Up to 24x faster on large files: fy-tool now uses streaming mode by default (105MB file: 18.3s → 0.776s)
• 2x faster emission through optimized plain scalar token analysis
• Thread-safe lockless allocators for multi-threaded applications
• Significantly improved UTF-8 handling and parsing performance

Stability Improvements

Fixed 12 critical bugs including:

• Segmentation faults and memory corruption issues
• Use-after-free errors in document processing
• Crashes on malformed input

New Features

Allocator Infrastructure

• Thread-safe lockless allocators (linear, malloc, mremap, dedup, auto)
• New fy_allocator_contains() API for pointer containment checks
• In-place allocator support (no malloc required)

Parser & API Enhancements

• Parser checkpointing: fy_parser_parse_peek(), fy_parser_skip(), fy_parser_count_*() for look-ahead operations
• Composer interface: Public event-based document composition API
• Document builder: Public API for programmatic document construction
• YPath operators: @ for set inclusion, ! for set exclusion
• New node operations: fy_node_delete(), fy_emit_body_node()
• Tag utilities: fy_node_get_tag0(), fy_node_get_tag_length()
• Event reporting: fy_event_report() methods for diagnostics

Build System Modernization

• CMake now at feature parity with autotools
• Full cross-compilation support (both CMake and autotools)
• Optional libclang integration for type-aware features
• Documentation build targets: doc-html, doc-latexpdf, doc-man
• New --enable-static-tools configuration option

Breaking Changes

Minor API Change

• Added minimum_bucket_occupancy field to dedup allocator configuration structure (no known external users affected)

Behavioral Change

• fy-tool now defaults to streaming mode for dump operations (24x faster)
• Streaming mode loses ability to reference forward anchors and perform strict duplicate key checking
• Use --no-streaming flag to restore previous document mode behavior

What's Changed

Added

• Thread-safe lockless allocator infrastructure
• Parser checkpointing and look-ahead APIs
• Public composer and document builder interfaces
• YPath set operators and enhanced path operations
• Compact emitter formats (flow and JSON)
• Cross-compilation support
• examples/ directory with library usage examples
• Comprehensive allocator and parser tests

Changed

• fy-tool uses streaming mode by default (up to 24x faster)
• Emission performance improved up to 2x
• UTF-8 handling significantly faster
• CMake build system at feature parity with autotools
• Stream YAML version handling now per-stream
• Improved block scalar handling

Fixed

• Segmentation fault in fy_reader_* when all input processed
• Use-after-free when document acceleration fails
• Double-free in fy_node_setup_path_expr_data
• Use-after-free after document resolution
• Crash when assertions compiled out in release mode
• Crash when addressing expression incorrectly
• Crash on error during walk evaluation
• Segmentation fault on garbage input
• Segmentation fault when block scalar indicators last in input
• Assertion preventing node deletion
• Crash when comparing mappings with NULL values
• Portability crash on NEC Aurora (enums in bitfields)
• Infinite loop in scan directive for malformed UTF-8
• Multiple use-after-free and memory corruption issues
• MacOS compatibility issues
• Numerous compiler warnings at high optimization levels

Documentation & Examples

• New examples/ directory with usage samples
• Fixed all documentation build errors
• Updated API reference
• New CHANGELOG.md following Keep a Changelog format

[Xi Ruoyao]

Now 0.9.2 with the build failure fixed.

[zeckma]

Pretty sure I have COVID Nimbus right now and Doug asked that I rest at least till Friday, so I'm reassigning this ticket to blfs-book.

[Douglas R. Reno]

Fixed at 2df0d5096448f3ad501a9d8cec7b941ffd2d0656

Documented a test failure in AppStream at f794a7f030c734bbcf766e439f6bbeca5e89b1fd

[Bruce Dubbs]

Milestone renamed