doccaico / lisp-zig

Lisp written in Zig/Ziglang

Lisp-Zig (Tested on Windows only)

Something like Lisp. I referred to Lisp interpreter in Rust and vishpat/lisp-rs. Thank you Vishal Patil.

Zig version

// 2024/04/06
0.12.0-dev.3533+e5d900268

Usage

$ zig run src\main.zig

Keywords

• print

print arg

(print "foobar")

> "foobar"

• define

define name value

(define pi 3.14)
(print pi)

> 3.14

• begin

begin element ...

(begin
    (define a 1)
    (define b 2)
    (+ a b)
)

> 3

• list

list element ...

(list 1 2 3 4 5)

> (1 2 3 4 5) 

• lambda

lambda args body

(define add (lambda (a b) (+ a b)))
(add 1 2)

> 3

• let

let binds body

(begin
    (let ((a 1) (b 2))
        (+ a b)
    )
)

> 3

• map

map function list

(map (lambda (a) (+ a 10)) (list 1 2 3 4 5))

> (11 12 13 14 15)

• filter

filter function list

(begin
    (define odd (lambda (v) (= 1 (% v 2))))
    (define l (list 1 2 3 4 5))
    (filter odd l)
)

> (1 3 5)

• reduce

reduce function list

(begin
    (define add (lambda (a b) (+ a b)))
    (define l (list 1 2 4 8 16 32))
    (reduce add l )
)

> 63

• range

range (start end stride)

(range 0 11)

>(0 1 2 3 4 5 6 7 8 9 10)

(range 0 11 2)

>(0 2 4 6 8 10)

• car

car list

(car (list 1 2 3))

>1

• cdr

cdr list

(car (list 1 2 3))

>(2 3)

• length

length list

(length (list 1 2 3))

>3

• null?

null? list

(null? (list 1 2 3 4 5))

>false

(null? (list))

>true