macOS
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brew install thraxlocal Homebrew formula metadata
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Install thrax with Homebrew
Tools for compiling grammars into finite state transducers. Version 1.3.10 via Homebrew; verified 2026-06-26.
install
Additional install commands
overview
Package summary
Tools for compiling grammars into finite state transducers
Project links
Commands and aliases
- thraxcompiler
- thraxmakedep
- thraxrandom-generator
- thraxrewrite-tester
history
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
- https://www.openfst.org/twiki/bin/view/GRM/ReadMe - official OpenGrm Thrax README for release, requirements, OpenFst dependency, installation, and usage paths.
- https://www.openfst.org/twiki/bin/view/GRM/Thrax - official Thrax documentation entry point.
- https://www.openfst.org/twiki/bin/view/GRM/ThraxQuickTour - official quick tour for compiler workflow, `thraxmakedep`, `thraxrewrite-tester`, PDT/MPDT, feature, and morphology notes.
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 4 platform targets.
- Installs with 1 runtime dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
thraxcompiler | cli | global executable | |
thraxmakedep | cli | global executable | |
thraxrandom-generator | cli | global executable | |
thraxrewrite-tester | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version1.3.10
manager updated2026-06-26
local dataok
upstreamnot checked
latest detectednot detected
https://www.openfst.org/twiki/bin/view/GRM/Thrax
- infoRelease/tag comparison is only available for GitHub repositories.https://www.openfst.org/twiki/bin/view/GRM/Thraxnone confidence
install metadata
Package metadata
| Package key | brew:thrax |
|---|---|
| Version | 1.3.10 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/thrax |
| Homepage | https://www.openfst.org/twiki/bin/view/GRM/Thrax |
| Upstream docs | https://www.openfst.org/twiki/bin/view/GRM/ReadMe |
| License | Apache-2.0 |
| Source archive | https://www.openfst.org/twiki/pub/GRM/ThraxDownload/thrax-1.3.10.tar.gz |
| Last updated | 2026-06-26T12:23:28-04:00 |
| Pulse | updated |
| Dependencies | openfst |
| Uses from macOS | python |
| Bottle | available (on arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | thrax |
| Version Scheme | 0 |
| Revision | 0 |
| Requirements |
|
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- package relationship graph
- package version freshness
- package-page enrichment