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Grammatica: GBNF grammar building toolkit

Testing
Package
Meta

What is it?

Grammatica is a GBNF (GGML BNF) grammar builder that exposes the GBNF notation system using a syntax that reflects the resulting grammar. These grammars can be used to restrict the output of LLMs using interface engines such as llama.cpp.

Table of Contents

• Requirements
• Issue Reporting
• Installing
• Useful Links

Requirements

Grammatica requires Python 3.10 or higher and is platform independent.

Important

typing-extensions is required for Python 3.11 and lower.

Issue Reporting

If you discover an issue with Grammatica, please report it at https://github.com/yaphott/grammatica/issues.

Installing

Install from PyPI:

pip install grammatica

Install from GitHub:

git clone git+https://github.com/yaphott/grammatica.git
cd grammatica
pip install -e .

Useful Links

• Grammatica Documentation
• Introduction to GGML (Hugging Face)
• GBNF Guide (llama.cpp)

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