[![Build Status][build_img]][ci]
About
=====
Bare essentials for building abstract syntax trees (AST) and Python
`lex`-`yacc` ([PLY](https://github.com/dabeaz/ply)) parsers.
The package includes:
- two classes for tree nodes: `Terminal`, `Operator`
- a `Lexer` and `Parser` class, and a helper function to erase and
rewrite the table files.
The examples under `examples/` demonstrate how to use these classes to create
a richer AST, a parser, and different backends that use the same parser.
These classes provide the boilerplate for parsing with PLY, and are based on
code that was developed in [`tulip`](
https://github.com/tulip-control/tulip-control)
and [`promela`](https://github.com/johnyf/promela).
License
=======
[BSD-3](https://opensource.org/licenses/BSD-3-Clause), see file `LICENSE`.
[build_img]: https://github.com/johnyf/astutils/actions/workflows/main.yml/badge.svg?branch=main
[ci]: https://github.com/johnyf/astutils/actions
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