f8bb463da6
* module/srfi/srfi-14.mes: New file. * tests/srfi-14.test: New file. * GNUmakefile (TESTS): Add it.
49 lines
1.4 KiB
Scheme
49 lines
1.4 KiB
Scheme
;;; -*-scheme-*-
|
|
|
|
;;; Mes --- Maxwell Equations of Software
|
|
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
|
|
;;;
|
|
;;; 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/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Minimal implementation of srfi-14, for nyacc.
|
|
|
|
;;; Code:
|
|
|
|
;; FIXME: have structs
|
|
(define (char-set . x)
|
|
(cons '*char-set* x))
|
|
|
|
(define (char-set? x)
|
|
(and (pair? x) (eq? (car x) '*char-set*)))
|
|
|
|
(define (char-set= a b)
|
|
(and (char-set? a) (char-set? b)
|
|
(equal? a b)))
|
|
|
|
(define char-set:whitespace (char-set #\tab #\return #\vtab #\newline #\space))
|
|
|
|
(define (string->char-set x . base)
|
|
(apply char-set (append (string->list x) (if (null? base) '() (cdar base)))))
|
|
|
|
(define (string->char-set! x base)
|
|
(set-cdr! (last-pair base) (string->list x))
|
|
base)
|
|
|
|
(define (char-set-contains? cs x)
|
|
(memq x cs))
|