;;; -*-scheme-*-
;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 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 .
;;; Commentary:
;;; base.mes is being loaded after base-0.mes. It provides the minimal
;;; set of scheme primitives to run lib/test.mes. It is safe to be
;;; run by Guile.
;;; Code:
(define (identity x) x)
(define-macro (or . x)
(if (null? x) #f
(if (null? (cdr x)) (car x)
(list 'if (car x) (car x)
(cons 'or (cdr x))))))
(define-macro (and . x)
(if (null? x) #t
(if (null? (cdr x)) (car x)
(list 'if (car x) (cons 'and (cdr x))
#f))))
(define (equal? a b) ;; FIXME: only 2 arg
(if (and (null? a) (null? b)) #t
(if (and (pair? a) (pair? b))
(and (equal? (car a) (car b))
(equal? (cdr a) (cdr b)))
(if (and (string? a) (string? b))
(eq? (string->symbol a) (string->symbol b))
(if (and (vector? a) (vector? b))
(equal? (vector->list a) (vector->list b))
(eq? a b))))))
(define (list? x)
(or (null? x)
(and (pair? x) (list? (cdr x)))))
(define (procedure? p)
(cond ((builtin? p) #t)
((and (pair? p) (eq? (car p) 'lambda)))
((and (pair? p) (eq? (car p) '*closure*)))
(#t #f)))