# Install thrax with Homebrew Tools for compiling grammars into finite state transducers. Version 1.3.10 via Homebrew; verified 2026-06-26. ## Install ```sh sudo av install brew:thrax ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install thrax ``` Evidence: local Homebrew formula metadata ## Package facts - **Package key:** brew:thrax - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.3.10 - **Source summary:** Tools for compiling grammars into finite state transducers - **Homepage:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Last updated:** 2026-06-26T12:23:28-04:00 - **Generated:** 2026-07-08T18:08:21+00:00 ## Executables - thraxcompiler (cli) - thraxmakedep (cli) - thraxrandom-generator (cli) - thraxrewrite-tester (cli) - thraxcompiler (alias) - thraxmakedep (alias) - thraxrandom-generator (alias) - thraxrewrite-tester (alias) ## Dependencies - openfst ## Uses from macOS - python ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma ## Freshness - Page generated: 2026-07-08 - Package-manager version: 1.3.10 - Package-manager updated: 2026-06-26 - Local data: ok - Upstream repository: https://www.openfst.org/twiki/bin/view/GRM/Thrax - info: Release/tag comparison is only available for GitHub repositories. ## Project history and usage OpenGrm Thrax is a grammar compiler toolkit for compiling grammars written as regular expressions and context-dependent rewrite rules into weighted finite-state transducers using the OpenFst format. ### Project history The official OpenGrm README presents Thrax as release 1.2 and ties it directly to OpenFst: users need OpenFst with FAR, PDT, and MPDT support or the OpenFst `--enable-grm` option. The documentation is hosted on the OpenFst/OpenGrm TWiki rather than a public GitHub repository. ### Adoption history Thrax's adoption is specialized: it serves finite-state grammar, language-processing, and computational-linguistics workflows rather than broad application development. Its Homebrew package makes the OpenGrm tools available to macOS users who want command-line programs such as `thraxcompiler`, `thraxmakedep`, and `thraxrewrite-tester` without building the OpenFst-related stack manually. ### How it is used The quick tour recommends copying the installed sample grammars from `/usr/local/share/thrax/grammars`, running `thraxmakedep`, building with `make`, and testing the resulting FAR archive with `thraxrewrite-tester`. The same page documents grammar features for tokenization, rewrite rules, PDT/MPDT usage, and morphological paradigms. ### Why package nerds care For package nerds, Thrax is a good example of a niche research-grade CLI where packaging matters because the dependency and build flags are the hard part. The official README calls out C++11, POSIX, bison, OpenFst, and specific OpenFst features, so a package manager saves users from reproducing a fragile local build recipe. ### Timeline - 2017: Official OpenGrm README revision documents Thrax release 1.2. - 2019: Official quick tour revision documents the OpenGrm Thrax grammar compiler workflow. - Thrax 1.1.0: Official quick tour notes added support for linguistic features and aspects of paradigmatic morphology. - Thrax 1.2.4: Official quick tour notes a more bash-friendly separator for PDT/parens/assignments triples. ### Related projects - Related projects include OpenFst, OpenGrm, weighted finite-state transducer tools, grammar compilers, and language-processing toolkits that use rewrite rules and finite-state archives. ### Sources - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** thrax - **Version Scheme:** 0 - **Revision:** 0 - **Requirements:** macos - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Related links - [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. - [Language runtime packages](https://www.automicvault.com/pkg/language-runtime-packages/) - Matched language runtime, compiler, or interpreter metadata. - [openfst](https://www.automicvault.com/pkg/brew/openfst/) - Runtime dependency declared by Homebrew. - [bsc](https://www.automicvault.com/pkg/brew/bsc/) - Shares av.db curated category or tags: cli, compiler, developer-tools. - [cc65](https://www.automicvault.com/pkg/brew/cc65/) - Shares av.db curated category or tags: cli, compiler, developer-tools. - [closure-compiler](https://www.automicvault.com/pkg/brew/closure-compiler/) - Shares av.db curated category or tags: cli, compiler, developer-tools. - [emscripten](https://www.automicvault.com/pkg/brew/emscripten/) - Shares av.db curated category or tags: cli, compiler, developer-tools. - [lunarml](https://www.automicvault.com/pkg/brew/lunarml/) - Shares av.db curated category or tags: cli, compiler, developer-tools. - [roblox-ts](https://www.automicvault.com/pkg/brew/roblox-ts/) - Shares av.db curated category or tags: cli, compiler, developer-tools. - [sdcc](https://www.automicvault.com/pkg/brew/sdcc/) - Shares av.db curated category or tags: cli, compiler, developer-tools. - [shc](https://www.automicvault.com/pkg/brew/shc/) - Shares av.db curated category or tags: cli, compiler, developer-tools. - [foma](https://www.automicvault.com/pkg/brew/foma/) - Local package facts share a topical domain. Shared terms: cli, compiler, developer, developer-tools, finite. ## Combined YAML source View the package source record on GitHub. [combined/thrax.yml](https://github.com/automic-vault/db/blob/main/combined/thrax.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 - cross-ecosystem install command graph