OpenFOAM grammar for Tree-Sitter

> This project is in early phases of development; expect things to change considerably

> DISCLAIMER:
> This offering is not approved or endorsed by OpenCFD Limited, producer and distributor
> of the OpenFOAM software and owner of the OPENFOAM® and OpenCFD® trade marks.

!OpenFOAM dictionary syntax highlighting

This is a generic fail-tolerant parser for OpenFOAM case dictionaries.
The goal is to reach a state that is "good enough" for syntax highlighting
and feasible symbols extraction.

Features

- Semantic understanding of OpenFOAM IO entries (Dictionaries, key-value pairs, ... etc)
- Syntax highlighting (Targeting nvim-treesitter mainly)
- Highlighting of C++ code blocks and regular expressions, so if your client does not install
those parsers automatically, you might have to install them manually
- Scope-awareness is there (Per-dictionary) although not used yet
- Text-objects for dictionaries and key-value pairs to use with
TreeSitter textobjects plugin for NeoVim
- Text-subjects to use with TreeSitter textsubjects plugin for NeoVim
- Expression-based folding

Running tests

- Unit tests for both parsing and highlighting (Highlighting is not consistent between tree-sitter highlight
and nvim-treesitter) are executed with tree-sitter test
(Check the test folder)
- testOFFiles.sh $FOAM_TUTORIALS parses all OpenFOAM dictionaries in the tutorials directory
- Currently, the parser works on almost all OpenFOAM 8 and Foam-Extend 4 tutorial files
(Well, some files are faulty from source!)

Contributing

- Pull requests are welcome!
- And, no I'm not going to support specific keyword highlighting
(eg. scalarField will never be treated in a special way) unless I find an "unattended"
way to do that.