Grammar composition and testing tool

Grammar Parser Generators

• ✓ pegen -- Based on python's own PEG parser generator
• ✓ peg -- Ian Piumarta's peg - PEG recursive-descent parser generators for C
• ○ leg -- Ian Piumarta's leg - 'peg' with closer to full lex/yacc syntax
• ✓ Lark -- Fastest python parser generator
• ✓ ANTLR4
• ○ TatSu
• ○ Arpeggio
• ○ Parsimonious
• ○ Ply -- David Beazley’s awesome PLY
• ○ rPly -- Rewrite of PLY with public API
• ○ Sly -- David Beazley revisit with clean/modern syntax, OOP

I hope you enjoy this tool and don't hesitate to reach out to me by email: [email protected] or just open an issue / open a PR if you see any opportunity for improvements. Additional parser generators can typically be added in an hour two. I will detail the necessary changes in New Parser Generator HOWTO.md

How to install and run it

$ git clone [email protected]:philip-h-dye/grammar-tool.git
$ cd grammar-tool
$ python3.10 -m venv venv
$ source venv/bin/activate
(venv) $ pip install -r requirements.txt

# or in one command
$ make setup

# ... usage ...

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Running the tests and other tools

(venv) $ pytest
# or
(venv) $ make cov

# run flake8 and mypy
(venv) $ make lint
(venv) $ make typing

Ian Piumarta's peg/leg - recursive-descent parser generators for C

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Python Arpeggio

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