;;; Mes --- Maxwell Equations of Software ;;; Copyright © 2018 Jan Nieuwenhuizen ;;; ;;; This file is part of Mes. ;;; ;;; Mes is free software; you can redistribute it and/or modify it ;;; under the terms of the GNU General Public License as published by ;;; the Free Software Foundation; either version 3 of the License, or (at ;;; your option) any later version. ;;; ;;; Mes is distributed in the hope that it will be useful, but ;;; WITHOUT ANY WARRANTY; without even the implied warranty of ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;;; GNU General Public License for more details. ;;; ;;; You should have received a copy of the GNU General Public License ;;; along with Mes. If not, see . (define (cadr x) (car (cdr x))) (define (map f lst) (if (null? lst) (list) (cons (f (car lst)) (map f (cdr lst))))) (define-macro (let bindings . rest) (cons (cons 'lambda (cons (map car bindings) rest)) (map cadr bindings))) (define (list-length list) (let ((length (length list))) (- length 2))) (exit (list-length '(bar baz)))