jisp

Jisp is a Lisp in Julia.

Usage

Load jisp either using include inside the Julia repl, or by running julia -i jisp.jl. Then, call repl. Here's an actual session:

$ julia -i jisp.jl
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.6.3 (2021-09-23)
 _/ |\__'_|_|_|\__'_|  |  
|__/                   |

julia> repl()
REPL mode jisp initialized. Press ) to enter and backspace to exit.
jisp> 
jisp> (+ 1 1)
2
jisp> (define sqr (lambda (x) (* x x)))
#1
jisp> (sqr 2)
4
jisp> (sqr (sqr 4))
256
jisp> (define fib
       (lambda (n)
        (cond
         ((= n 1) 0)
         ((= n 2) 1)
         (#t (+ (fib (- n 1)) (fib (- n 2)))))))
#1
jisp> (fib 5)
3
jisp> (exit)
$