1 /* $Header: /p/tcsh/cvsroot/tcsh/tc.nls.c,v 3.21 2006/09/26 16:45:30 christos Exp $ */
3 * tc.nls.c: NLS handling
6 * Copyright (c) 1980, 1991 The Regents of the University of California.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 RCSID("$tcsh: tc.nls.c,v 3.21 2006/09/26 16:45:30 christos Exp $")
46 return l >= 0 ? l : 0;
48 return iswprint(c) != 0;
53 NLSStringWidth(const Char *s)
61 if ((l = wcwidth(c)) < 0)
73 NLSChangeCase(const Char *p, int mode)
78 for (; (c = *p) != 0; p++) {
79 if (mode == 0 && Islower(c)) {
82 } else if (mode && Isupper(c)) {
95 NLSClassify(Char c, int nocomb)
99 return NLSCLASS_ILLEGAL;
101 if ((w > 0 && !(Iscntrl(c) && (c & CHAR) < 0x100)) || (Isprint(c) && !nocomb))
103 if (Iscntrl(c) && (c & CHAR) < 0x100) {
108 return NLSCLASS_CTRL;
112 return NLSCLASS_ILLEGAL4;
114 return NLSCLASS_ILLEGAL3;
117 return NLSCLASS_ILLEGAL2;
118 return NLSCLASS_ILLEGAL;