Crisp documentation

Introduction

crisp is a programming language based on Lisp that takes more inspiration from Rust (keywords for instance).

>> "Hello, world!"
"Hello, world!"
>> (+ 1 2 3 4 5)
15
>> (* 4 5 6)
120
>> (- 5 15)
-10
>> (* 13 (+ 1 2 3) 5)
390

>> (let x 10)
nil
>> (let y 15)
nil
>> (+ x y)
25

>> (let triple (fn (x) (* x 3)))
nil
>> (triple 5)
15

Above can also be written like so:

>> (let (triple x) (* x 3))
nil
>> (triple 5)
15

Functions can also be recursive (tail-call optimization is implemented):

>> (let (sum x acc) (if (> x 0) (sum (- x 1) (+ acc x)) acc))
nil
>> (sum 10 0)
55