;;; -*-scheme-*-

;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; test.mes: 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 <http://www.gnu.org/licenses/>.

;; The Maxwell Equations of Software -- John McCarthy page 13
;; http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf

(display 123)

4
(newline)

(cons (display 'one-) (display 'two))
(newline)

(display 'hello-display-symbol)
(newline)

(display '(0 1 2))
(newline)

(display (- 12 3))
(newline)

(display (+ 3 4))

(newline)

(display 'and-0-1:)
(display (and 0 1))
(newline)
(display 'and-#f-2:)
(display (and #f 2))
(newline)

(display 'or-0-1:)
(display (or 0 1))
(newline)
(display 'or-#f-2:)
(display (or #f 2))
(newline)

(let ((p 5)
       (q 6))
      (display 'let-p:3-q:4)
      (newline)
      (display 'p:)
      (display p)
      (newline)
      (display 'q:)
      (display q)
      (newline))


(display
 (let ((p 5)
       (q 6))
   (display 'hallo)
   (display p)
   (display 'daar)
   (display q)
   (display 'dan)))

(newline)
(display 'let-dun)
(newline)

(define c 'b)
`(aa bb ,c)
(display `(pp qq ,c))
(newline)

(display
 (let* ((aa 2)
       (bb (+ aa 3))
       #! boo !#
       ;;(bb 4)
       )
   (display 'allo:)
   bb))

(newline)
(display 'let*-dun)
(newline)
(map display '(1 2 3 4))
(newline)
(map (lambda (x) (display x) (newline)) '(5 6 7 8))
(newline)

(map (lambda (i a) (display i) (display ':) (display a) (newline)) '(1 2 3 4) '(a b c d))
(newline)

(define a 0)
(display 'a=0:)
(display a)
(newline)
(set! a 1)
(display 'a=1:)
(display a)
(newline)

(display
 ((lambda (x)
    (display 'x:)
    (display x)
    (newline)
    (display 'setting-x=2)
    (newline)
    (set! x 2)
    (display 'x:)
    (display x)
    (newline))
  1))

(display (+ 11 12))
(newline)
(display (* 3 3))
(newline)
(display (/ 9 3))
(newline)
(display (= 3 '3))
(newline)

(display (if #t 'true))
(newline)
(display (if (eq? 0 '0) 'true 'false))
(newline)
(display (if (= 1 2) 'true 'false))
(newline)

(display 'factorial4=)
(display
 (letrec ((factorial (lambda (n)
                       ;; (display 'factorial:)
                       ;; (display n)
                       ;; (newline)
                       (if (= n 1) 1
                           (* n (factorial (- n 1)))))))
   (factorial 4)))
(newline)

(define a 2)
(begin
  (display 'a+3=)
  (display (+ a 3)))
(newline)

" a b c"
(display "string me")
(newline)
(display (string-append "a" "b" "c"))
(newline)
(display (string-length (string-append "a" "b" "c")))
(newline)

#\m
(display #\m)
(newline)
(display #\101)
(newline)
(display #\newline)
(newline)
(display #\space)
(newline)

(display (string #\a #\space #\s #\t #\r #\i #\n #\g #\newline))
(newline)

(display "length of nil: ")
(display (length '()))
(newline)
(display "length of '(a b c): ")
(display (length '(a b c)))
(newline)

'()