github-linguist/linguist

Add support for Metamath

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#7,499 opened on Jul 23, 2025

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Description

Metamath is a simple and flexible computer-processable language that supports rigorously verifying, archiving, and presenting mathematical proofs.

Language name

Metamath

URL of example repository

https://github.com/metamath/set.mm

URL of syntax highlighting grammar

https://github.com/vsannier/metamath-databases/blob/main/misc/metamath.sublime-syntax

Most popular extensions

.mm

Detected language

Objective C++

Contributor guide

Research direction
Study the Linguist documentation on adding a language. Look at existing language definitions in lib/linguist/languages.yml and add a new entry for Metamath. Consider adding a syntax highlighting grammar if needed. Test the changes locally and submit a pull request.
Tech stack
ruby
Domain
tooling
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75