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fsprojects/FsLexYacc

This system is a compiler toolset for generating lexical and syntactic parsers, specifically providing the FsLex and FsYacc utilities for F# developers. It manages the build process and runtime support for these tools, including configuration for .NET 6 compatibility and NuGet distribution. The codebase also includes comprehensive test suites and examples to validate parsing logic and Unicode handling.

50.9

Adequate · 6 August 2026

6.1k

lines of production code

F#

primary language

5

bus factor · 58 authors in all

2

measurements over time

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How it got here

2013–2014 · .NET 6 migration and build modernization

The project underwent a significant infrastructure upgrade to .NET 6, updating build scripts, MSBuild tasks, and dependency management. This period also introduced new features for command-line argument parsing and configurable parser cache capacities, alongside expanded test coverage for both legacy and modern tooling.

9 changes

2015–2021 · Core library extraction and modularization

This period focused on refactoring the FsLex and FsYacc tooling by extracting their core domain logic into separate, versioned libraries (FsLex.Core and FsYacc.Core). This architectural shift improved modularity and enabled independent testing, supported by new test suites for Unicode handling and CLI options.

5 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 6 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 3bf3dded7c — the exact code this score is about.
  • Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.
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