macOS
Homebrewverified · 100%
brew install graplocal Homebrew formula metadata
brew
Install grap with Homebrew, apt, Nix
Language for typesetting graphs. Version 1.49 via Homebrew; verified from local package data.
install
Additional install commands
Linux
Debian aptverified · 92%
sudo apt install grapDebian stable package indexes · grap · source: deb.debian.org
Nixverified · 92%
nix profile install nixpkgs#grapnixpkgs package indexes · pkgs/by-name/gr/grap/package.nix · source: api.github.com
overview
Package summary
Language for typesetting graphs
Project links
Commands and aliases
- grap
history
Project history and usage
grap is an implementation of the Bell Labs grap language for typesetting graphs in troff, groff, TeX, and other document-formatting pipelines that can consume pic output.
Project history
The grap language was specified and first implemented by Brian Kernighan and Jon Bentley at Bell Labs. Ted Faber's implementation was written because groff did not include a free grap implementation, and the repository describes it as an implementation of Kernighan and Bentley's language.
The project preserves a classic Unix documentation workflow: a small language is processed into pic, then included in typeset documents. That lineage places grap beside troff preprocessors such as pic, tbl, and eqn.
Adoption history
grap is niche but durable because it solves a specific documentation problem for users who still value text-based, reproducible graph descriptions inside Unix typesetting systems. It appears in package managers for people maintaining historical troff/groff workflows or converting old documents.
How it is used
Users write graph descriptions in grap, run the preprocessor to generate pic, and let pic/troff, groff, or TeX-oriented workflows render the graph in a document.
Why package nerds care
grap matters to package nerds because it is a preservation-friendly Unix tool: tiny, source-buildable, text-oriented, and useful mainly when the rest of a document toolchain is installed correctly.
Timeline
- 1986: Bentley and Kernighan published GRAP, a language for typesetting graphs, in Communications of the ACM.
- 1998-2009: Ted Faber copyright range shown in the repository README.
- 2025-04-16: Lunabase project page listed version 1.49.
Related projects
- pic is the immediate output language and troff/groff are the common formatting environments.
- TeX can participate through workflows that consume pic-generated output.
- The original Bell Labs language is the historical source for Ted Faber's implementation.
Sources
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 8 platform targets.
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 |
|---|---|---|---|
grap | 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 version1.49
manager updated
local dataok
upstreamnot checked
latest detectednot detected
https://www.lunabase.org/~faber/Vault/software/grap/
- infoNo package-manager update timestamp was available.low confidence
- infoRelease/tag comparison is only available for GitHub repositories.https://www.lunabase.org/~faber/Vault/software/grap/none confidence
install metadata
Package metadata
| Package key | brew:grap |
|---|---|
| Version | 1.49 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/grap |
| Homepage | https://www.lunabase.org/~faber/Vault/software/grap/ |
| Repository | https://github.com/snorerot13/grap |
| Upstream docs | https://github.com/snorerot13/grap/blob/master/README |
| License | BSD-2-Clause |
| Source archive | https://www.lunabase.org/~faber/Vault/software/grap/grap-1.49.tar.gz |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | grap |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Debian apt95%
grap 1.49-1
program for typesetting graphs
https://www.lunabase.org/~faber/Vault/software/grap/
sudo apt install grap- Section: text
- Architecture: amd64
- 3 dependencies
- 1 optional deps
- normalized package name match
- Matched by: Grap
Nix95%
grap
nix profile install nixpkgs#grap- normalized package name match
- Matched by: Grap
Ubuntu apt95%
grap 1.47-1
program for typesetting graphs
https://www.lunabase.org/~faber/Vault/software/grap/
sudo apt install grap- Section: universe/text
- Architecture: amd64
- 3 dependencies
- 1 optional deps
- normalized package name match
- Matched by: Grap
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
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment