mes/scaffold/boot/4e-let-global.scm

;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU 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.
;;;
;;; GNU 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 GNU Mes.  If not, see <http://www.gnu.org/licenses/>.

(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)))