# Install menhir with Homebrew, apt LR(1) parser generator for the OCaml programming language. Version 20260209 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:menhir ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install menhir ``` Evidence: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install libmenhir-ocaml-dev ``` Evidence: Debian stable package indexes: libmenhir-ocaml-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz ## Package facts - **Package key:** brew:menhir - **Package manager:** Homebrew - **Package manager page:** - **Version:** 20260209 - **Source summary:** LR(1) parser generator for the OCaml programming language - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** GPL-3.0-or-later - **Source archive:** - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - menhir (cli) - menhir (alias) ## Dependencies - ocaml ## Build dependencies - dune - ocamlbuild ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 20260209 - Local data: ok - Upstream repository: http://cristal.inria.fr/~fpottier/menhir - info: No package-manager update timestamp was available. - info: Release/tag comparison is only available for GitHub repositories. ## Project history and usage Menhir is an LR(1) parser generator for OCaml, created in 2005 by François Pottier and Yann Régis-Gianas. Its manual presents it as a generator that turns grammar specifications plus semantic actions into parsers, based on Knuth's LR(1) construction and inspired by yacc, ML-Yacc, and ocamlyacc while adding more modern capabilities. ### Project history The project history is unusually well documented in its README. Régis-Gianas contributed the early front-end for parsing and transforming .mly grammar files, while Pottier contributed the LR(1) construction algorithms, conflict explanations, and first OCaml code backend. A table backend using menhirLib followed in 2008 with Jane Street Capital funding through the OCaml Summer Project. Jacques-Henri Jourdan implemented a Coq-table backend in 2011. Frédéric Bour contributed the incremental API, inspection API, attributes, and MenhirSdk between 2014 and 2017. The build moved to Dune in 2019, and Émile Trotignon and Pottier implemented a new efficient, well-typed code backend around StackLang in 2021. ### How it is used Menhir's ecosystem role is as the richer successor-style tool for OCaml parser generation. OCaml developers feed it .mly grammar files and receive parser .ml/.mli output, either as standalone generated code or table-backed parsers linked with MenhirLib. The opam package page lists many reverse users, including compiler, verification, parsing, and developer-tooling packages, which matches its place as infrastructure for OCaml language tooling. ### Sources - - - - ## Security Notes generalized runtime or code generation signal. - **Geiger risk:** yellow / medium - generalized runtime or code generation signal ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** menhir - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - Debian apt - libmenhir-ocaml-dev - 20240715+ds-1+b2: normalized package name match | Debian stable package indexes: libmenhir-ocaml-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Menhir library for OCaml | https://gallium.inria.fr/~fpottier/menhir/ - Debian apt - menhir - 20240715+ds-1+b2: normalized package name match | Debian stable package indexes: menhir from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Parser generator for OCaml | https://gallium.inria.fr/~fpottier/menhir/ - Debian apt - menhir-doc - 20240715+ds-1: normalized package name match | Debian stable package indexes: menhir-doc from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Documentation of the Menhir parser generator for OCaml | https://gallium.inria.fr/~fpottier/menhir/ - Ubuntu apt - libmenhir-ocaml-dev - 20231231+ds-1: normalized package name match | Ubuntu 24.04 LTS package indexes: libmenhir-ocaml-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Menhir library for OCaml | https://gallium.inria.fr/~fpottier/menhir/ - Ubuntu apt - menhir - 20231231+ds-1: normalized package name match | Ubuntu 24.04 LTS package indexes: menhir from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Parser generator for OCaml | https://gallium.inria.fr/~fpottier/menhir/ - Ubuntu apt - menhir-doc - 20231231+ds-1: normalized package name match | Ubuntu 24.04 LTS package indexes: menhir-doc from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Documentation of the Menhir parser generator for OCaml | https://gallium.inria.fr/~fpottier/menhir/ ## Related links - [Secret-risk packages](https://www.automicvault.com/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [ocaml](https://www.automicvault.com/pkg/brew/ocaml/) - Runtime dependency declared by Homebrew. - [dune](https://www.automicvault.com/pkg/brew/dune/) - Build dependency declared by Homebrew. - [ocamlbuild](https://www.automicvault.com/pkg/brew/ocamlbuild/) - Build dependency declared by Homebrew. - [byacc](https://www.automicvault.com/pkg/brew/byacc/) - Shares av.db curated category or tags: cli, compiler-tools, developer-tools, parser-generator. - [javacc](https://www.automicvault.com/pkg/brew/javacc/) - Shares av.db curated category or tags: cli, developer-tools, grammar, parser-generator. - [peg](https://www.automicvault.com/pkg/brew/peg/) - Shares av.db curated category or tags: cli, compiler-tools, developer-tools, parser-generator. - [tree-sitter-cli](https://www.automicvault.com/pkg/brew/tree-sitter-cli/) - Shares av.db curated category or tags: cli, developer-tools, parser-generator. - [bison](https://www.automicvault.com/pkg/brew/bison/) - Shares av.db curated category or tags: cli, compiler-tools, developer-tools, parser-generator. - [bnfc](https://www.automicvault.com/pkg/brew/bnfc/) - Shares av.db curated category or tags: cli, developer-tools, grammar, parser-generator. - [abnfgen](https://www.automicvault.com/pkg/brew/abnfgen/) - Shares av.db curated category or tags: cli, developer-tools, grammar. - [antlr](https://www.automicvault.com/pkg/brew/antlr/) - Shares av.db curated category or tags: cli, developer-tools, parser-generator. ## Combined YAML source View the package source record on GitHub. [combined/menhir.yml](https://github.com/automic-vault/db/blob/main/combined/menhir.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph