# Modal

Modal is a language based a model of computation that uses pattern matching and replacement to rewrite trees.

All Modal code is represented as a series of rules applied to a given tree, formatted textually as tokens delimited with parenthesis, which gets continually modified until no rules match any given part of the tree.

A pattern/replacement can be:

    A token: foo, bar, baz
    A variable: ?foo, ?bar, ?baz
    A sequence of the above: (foo bar baz), (foo ?bar baz), foo (bar (baz))

## Build

```
cc src/modal.c -o bin/modal
```

## Run

```
bin/modal examples/hello.modal
```

## Credits

Created by [wryl](https://wryl.tech/), Immediate Mode Technologies.