mylisp
Lisp interpreter written in Clojure, mainly as an exercise to experiment with clojure.spec features for conforming and destructuring S-expressions.
Goals
The main goals of this LISP interpreter implementation is to support evaluation of S-expressions of untyped lambda calculus:
- evaluation robust enough, so that Y-Combinator works
- support for basic LISP macro system (dirty, non-hiegenic)
Usage
Run the REPL by executing lein run in the project root directory.
While in the REPL try executing the following expressions:
(+ 1 2 3)
;; => 6
(defun square (x) (* x x))
;; => square
(square 5)
;; = > 25
(let (x (+ 2 3)) (square x))
;; => 25
(defun fact (n) (if (= n 0) 1 (* n (fact (- n 1)))))
;; => fact
(fact 0)
;; => 1
(fact 5)
;; => 120
License
Copyright © 2014 Daniel Dinnyes
Distributed under the Eclipse Public License either version 1.0 or any later version.