134 lines
4.4 KiB
Scheme
134 lines
4.4 KiB
Scheme
;;; -*-scheme-*-
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;;; GNU Mes --- Maxwell Equations of Software
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;;; Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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;;;
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;;; This file is part of GNU Mes.
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;;;
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;;; GNU Mes is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Mes is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; base.mes is being loaded after base-0.mes. It provides the minimal
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;;; set of scheme primitives to run lib/test.mes. It is safe to be
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;;; run by Guile.
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;;; Code:
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(define (caar x) (car (car x)))
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(define (cadr x) (car (cdr x)))
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(define (cdar x) (cdr (car x)))
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(define (cddr x) (cdr (cdr x)))
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(define (caaar x) (car (car (car x))))
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(define (caadr x) (car (car (cdr x))))
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(define (cadar x) (car (cdr (car x))))
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(define (caddr x) (car (cdr (cdr x))))
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(define (cdaar x) (cdr (car (car x))))
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(define (cdadr x) (cdr (car (cdr x))))
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(define (cddar x) (cdr (cdr (car x))))
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(define (cdddr x) (cdr (cdr (cdr x))))
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(define (caaaar x) (car (car (car (car x)))))
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(define (caaadr x) (car (car (car (cdr x)))))
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(define (caadar x) (car (car (cdr (car x)))))
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(define (caaddr x) (car (car (cdr (cdr x)))))
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(define (cadaar x) (car (cdr (car (car x)))))
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(define (cadadr x) (car (cdr (car (cdr x)))))
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(define (caddar x) (car (cdr (cdr (car x)))))
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(define (cadddr x) (car (cdr (cdr (cdr x)))))
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(define (cdaaar x) (cdr (car (car (car x)))))
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(define (cdaadr x) (cdr (car (car (cdr x)))))
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(define (cdadar x) (cdr (car (cdr (car x)))))
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(define (cdaddr x) (cdr (car (cdr (cdr x)))))
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(define (cddaar x) (cdr (cdr (car (car x)))))
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(define (cddadr x) (cdr (cdr (car (cdr x)))))
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(define (cdddar x) (cdr (cdr (cdr (car x)))))
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(define (cddddr x) (cdr (cdr (cdr (cdr x)))))
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(define (identity x) x)
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(define call/cc call-with-current-continuation)
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(define (command-line) %argv)
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(define (read) (read-env (current-module)))
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(define-macro (and . x)
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(if (null? x) #t
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(if (null? (cdr x)) (car x)
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(list 'if (car x) (cons 'and (cdr x))
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#f))))
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(define-macro (or . x)
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(if (null? x) #f
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(if (null? (cdr x)) (car x)
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(list (list 'lambda (list 'r)
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(list 'if 'r 'r
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(cons 'or (cdr x))))
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(car x)))))
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(define (and=> value procedure) (and value (procedure value)))
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(define eqv? eq?)
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(define (equal? . x)
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(if (or (null? x) (null? (cdr x))) #t
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(if (null? (cddr x)) (equal2? (car x) (cadr x))
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(and (equal2? (car x) (cadr x))
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(apply equal? (cdr x))))))
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(define (list? x)
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(or (null? x)
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(and (pair? x) (list? (cdr x)))))
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(define-macro (cond . clauses)
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(list 'if (pair? clauses)
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(list (cons
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'lambda
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(cons
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'(test)
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(list (list 'if 'test
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(if (pair? (cdr (car clauses)))
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(if (eq? (car (cdr (car clauses))) '=>)
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(append2 (cdr (cdr (car clauses))) '(test))
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(list (cons 'lambda (cons '() (cons 'test (cdr (car clauses)))))))
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(list (cons 'lambda (cons '() (cons 'test (cdr (car clauses)))))))
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(if (pair? (cdr clauses))
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(cons 'cond (cdr clauses)))))))
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(car (car clauses)))))
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(define else #t)
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(define (map f h . t)
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(if (or (null? h)
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(and (pair? t) (null? (car t)))
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(and (pair? t) (pair? (cdr t)) (null? (cadr t)))) '()
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(if (null? t) (cons (f (car h)) (map f (cdr h)))
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(if (null? (cdr t))
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(cons (f (car h) (caar t)) (map f (cdr h) (cdar t)))
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(if (null? (cddr t))
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(cons (f (car h) (caar t) (caadr t)) (map f (cdr h) (cdar t) (cdadr t)))
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(if (null? (cdddr t))
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(cons (f (car h) (caar t) (caadr t) (car (caddr t))) (map f (cdr h) (cdar t) (cdadr t) (cdr (caddr t))))
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(error 'unsupported (cons* "map 5:" f h t))) )))))
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