source: trunk/j/src/org/armedbear/lisp/chars.lisp @ 7828

Last change on this file since 7828 was 7828, checked in by piso, 17 years ago

Moved ALPHANUMERICP to LispCharacter?.java.

File size: 2.3 KB
Line 
1;;; chars.lisp
2;;;
3;;; Copyright (C) 2003-2004 Peter Graves
4;;; $Id: chars.lisp,v 1.14 2004-09-27 13:57:28 piso Exp $
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(in-package #:system)
21
22;;; From CMUCL.
23
24(defun char/= (character &rest more-characters)
25  (do* ((head character (car list))
26  (list more-characters (cdr list)))
27       ((atom list) T)
28    (unless (do* ((l list (cdr l)))                  ;inner loop returns T
29     ((atom l) T)          ; iff head /= rest.
30        (if (eql head (car l)) (return nil)))
31      (return nil))))
32
33(defun char< (character &rest more-characters)
34  (do* ((c character (car list))
35  (list more-characters (cdr list)))
36       ((atom list) T)
37    (unless (< (char-int c)
38         (char-int (car list)))
39      (return nil))))
40
41(defun char> (character &rest more-characters)
42  (do* ((c character (car list))
43  (list more-characters (cdr list)))
44       ((atom list) T)
45    (unless (> (char-int c)
46         (char-int (car list)))
47      (return nil))))
48
49(defun char>= (character &rest more-characters)
50  (do* ((c character (car list))
51  (list more-characters (cdr list)))
52       ((atom list) T)
53    (unless (>= (char-int c)
54    (char-int (car list)))
55      (return nil))))
56
57(defmacro equal-char-code (character)
58  `(let ((ch (char-code ,character)))
59     (if (< 96 ch 123) (- ch 32) ch)))
60
61(defun char-not-equal (character &rest more-characters)
62  (do* ((head character (car list))
63  (list more-characters (cdr list)))
64       ((atom list) T)
65    (unless (do* ((l list (cdr l)))
66     ((atom l) T)
67        (if (= (equal-char-code head)
68         (equal-char-code (car l)))
69      (return nil)))
70      (return nil))))
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