1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1995, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /*
28  * wunctrl.c
29  *
30  * XCurses Library
31  *
32  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
33  *
34  */
35 
36 #if M_RCSID
37 #ifndef lint
38 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/wunctrl.c 1.1 1995/05/16 15:15:37 ant Exp $";
39 #endif
40 #endif
41 
42 #include <private.h>
43 #include <wctype.h>
44 
45 static const wchar_t *carat[] = {
46 	M_MB_L("^?"),
47 	M_MB_L("^@"),
48 	M_MB_L("^A"),
49 	M_MB_L("^B"),
50 	M_MB_L("^C"),
51 	M_MB_L("^D"),
52 	M_MB_L("^E"),
53 	M_MB_L("^F"),
54 	M_MB_L("^G"),
55 	M_MB_L("^H"),
56 	M_MB_L("^I"),
57 	M_MB_L("^J"),
58 	M_MB_L("^K"),
59 	M_MB_L("^L"),
60 	M_MB_L("^M"),
61 	M_MB_L("^N"),
62 	M_MB_L("^O"),
63 	M_MB_L("^P"),
64 	M_MB_L("^Q"),
65 	M_MB_L("^R"),
66 	M_MB_L("^S"),
67 	M_MB_L("^T"),
68 	M_MB_L("^U"),
69 	M_MB_L("^V"),
70 	M_MB_L("^W"),
71 	M_MB_L("^X"),
72 	M_MB_L("^Y"),
73 	M_MB_L("^Z"),
74 	M_MB_L("^["),
75 	M_MB_L("^\\"),
76 	M_MB_L("^]"),
77 	M_MB_L("^^"),
78 	M_MB_L("^_")
79 };
80 
81 const wchar_t *
wunctrl(cc)82 wunctrl(cc)
83 const cchar_t *cc;
84 {
85 	int i;
86 	wint_t wc;
87 	static wchar_t wcs[M_CCHAR_MAX+1];
88 
89 #ifdef M_CURSES_TRACE
90 	__m_trace("wunctrl(%p)", cc);
91 #endif
92 	if (cc->_n <= 0)
93 		return __m_return_pointer("wunctrl", (wchar_t *) 0);
94 
95         /* Map wide character to a wide string. */
96 	wc = cc->_wc[0];
97 	if (iswcntrl(wc)) {
98 		if (wc == 127)
99 			return __m_return_pointer("wunctrl", carat[0]);
100 		if (0 <= wc && wc <= 32)
101 			return __m_return_pointer("wunctrl", carat[wc+1]);
102 		return __m_return_pointer("wunctrl", (wchar_t *) 0);
103 	}
104 
105 	for (i = 0; i < cc->_n; ++i)
106 		wcs[i] = cc->_wc[i];
107 	wcs[i] = M_MB_L('\0');
108 
109 	return __m_return_pointer("wunctrl", wcs);
110 }
111