source: trunk/abcl/src/org/armedbear/lisp/chars.lisp @ 14215

Last change on this file since 14215 was 11391, checked in by vvoutilainen, 12 years ago

ABCL license is GPL + Classpath exception. This was intended
by Peter Graves, the original author. For reference, see
http://sourceforge.net/mailarchive/forum.php?thread_name=20040721115302.839%40prufrock&forum_name=armedbear-j-announce

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 2.7 KB
Line 
1;;; chars.lisp
2;;;
3;;; Copyright (C) 2003-2004 Peter Graves
4;;; $Id: chars.lisp 11391 2008-11-15 22:38:34Z vvoutilainen $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19;;;
20;;; As a special exception, the copyright holders of this library give you
21;;; permission to link this library with independent modules to produce an
22;;; executable, regardless of the license terms of these independent
23;;; modules, and to copy and distribute the resulting executable under
24;;; terms of your choice, provided that you also meet, for each linked
25;;; independent module, the terms and conditions of the license of that
26;;; module.  An independent module is a module which is not derived from
27;;; or based on this library.  If you modify this library, you may extend
28;;; this exception to your version of the library, but you are not
29;;; obligated to do so.  If you do not wish to do so, delete this
30;;; exception statement from your version.
31
32(in-package #:system)
33
34;;; From CMUCL.
35
36(defun char/= (character &rest more-characters)
37  (do* ((head character (car list))
38  (list more-characters (cdr list)))
39       ((atom list) T)
40    (unless (do* ((l list (cdr l)))                  ;inner loop returns T
41     ((atom l) T)          ; iff head /= rest.
42        (if (eql head (car l)) (return nil)))
43      (return nil))))
44
45(defun char> (character &rest more-characters)
46  (do* ((c character (car list))
47  (list more-characters (cdr list)))
48       ((atom list) T)
49    (unless (> (char-int c)
50         (char-int (car list)))
51      (return nil))))
52
53(defun char>= (character &rest more-characters)
54  (do* ((c character (car list))
55  (list more-characters (cdr list)))
56       ((atom list) T)
57    (unless (>= (char-int c)
58    (char-int (car list)))
59      (return nil))))
60
61(defmacro equal-char-code (character)
62  `(let ((ch (char-code ,character)))
63     (if (< 96 ch 123) (- ch 32) ch)))
64
65(defun char-not-equal (character &rest more-characters)
66  (do* ((head character (car list))
67  (list more-characters (cdr list)))
68       ((atom list) T)
69    (unless (do* ((l list (cdr l)))
70     ((atom l) T)
71        (if (= (equal-char-code head)
72         (equal-char-code (car l)))
73      (return nil)))
74      (return nil))))
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