fez-lisp/README.md

Lisp interpreted & compiled to JavaScript

# Fez Programming Language

<p align="center">
<img width="128" src="./favicon.svg"/>
</p>

```lisp
(let fezz-buzz (lambda n
        (cond
          (= (mod n 15) 0) "FezzBuzz"
          (= (mod n 3) 0) "Fezz"
          (= (mod n 5) 0) "Buzz"
          (*) (from:integer->string n))))

(|> (math:range 1 100) (array:map fezz-buzz) (from:array->string char:space) (string))
```

## [Try it in online editor](https://at-290690.github.io/fez/)

```lisp
; Build-in keywords
(/ ...) (+ ...) (* ...) (- ...) (= ...) (< ...) (> ...) (>= ...) (<= ...) (& ...) (~ ...) (| ...) (^ ...) (<< ...) (>> ...)
(mod ...) (let ...) (if ...) (not ...) (and ...) (or ...) (atom? ...) (lambda? ...)
(length ...) (do ...) (array ...) (set! ...) (pop! ...) (get ...) (lambda ...) (apply ...)
```

## ⚠️ Important: Do not use this programming language in production!

Here is how to install the compiler:

```
npm i fez-lisp
```

```js
import { parse, compile } from 'fez-lisp'
console.log(compile(parse('(+ 1 2)')))
// '(()=>{;return(()=>{return (1+2);})()})()'
```

```js
import { parse, fez } from 'fez-lisp'
const parsed = parse(`(|> [ 1 2 3 4 ] (math:map math:square) (math:summation))`)
const [result, error] = fez(parsed, false)
error == null ? console.log(result) : console.log('\x1b[31m', error, '\x1b[0m')
```