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 /*  Copyright (c) 1988 AT&T */
23 /*    All Rights Reserved   */
24 
25 
26 /*
27  *      Copyright (c) 1997, by Sun Microsystems, Inc.
28  *      All rights reserved.
29  */
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
32 
33 /*LINTLIBRARY*/
34 
35 #include	"curses_inc.h"
36 #include	<sys/types.h>
37 #include	<ctype.h>
38 
39 #define	CSWIDTH	514
40 
41 short		cswidth[4] = {-1, 1, 1, 1};	/* character length */
42 short		_curs_scrwidth[4] = {1, 1, 1, 1};	/* screen width */
43 
44 /*
45  * This function is called only once in a program.
46  * Before cgetwidth() is called, setlocale() must be called.
47  */
48 
49 void
mbgetwidth(void)50 mbgetwidth(void)
51 {
52 	unsigned char *cp = &__ctype[CSWIDTH];
53 
54 	cswidth[0] = cp[0];
55 	cswidth[1] = cp[1];
56 	cswidth[2] = cp[2];
57 	_curs_scrwidth[0] = cp[3];
58 	_curs_scrwidth[1] = cp[4];
59 	_curs_scrwidth[2] = cp[5];
60 
61 }
62 
63 int
mbeucw(int c)64 mbeucw(int c)
65 {
66 	c &= 0xFF;
67 
68 	if (c & 0x80) {
69 		if (c == SS2) {
70 			return (cswidth[1]);
71 		} else if (c == SS3) {
72 			return (cswidth[2]);
73 		}
74 		return (cswidth[0]);
75 	}
76 	return (1);
77 }
78 
79 int
mbscrw(int c)80 mbscrw(int c)
81 {
82 	c &= 0xFF;
83 
84 	if (c & 0x80) {
85 		if (c == SS2) {
86 			return (_curs_scrwidth[1]);
87 		} else if (c == SS3) {
88 			return (_curs_scrwidth[2]);
89 		}
90 		return (_curs_scrwidth[0]);
91 	}
92 	return (1);
93 }
94 
95 int
wcscrw(wchar_t wc)96 wcscrw(wchar_t wc)
97 {
98 	int	rv;
99 
100 	switch (wc & EUCMASK) {
101 	case	P11:	/* Code set 1 */
102 		rv = _curs_scrwidth[0];
103 		break;
104 	case	P01:	/* Code set 2 */
105 		rv = _curs_scrwidth[1];
106 		break;
107 	case	P10:	/* Code set 3 */
108 		rv = _curs_scrwidth[2];
109 		break;
110 	default	:	/* Code set 0 */
111 		rv = 1;
112 		break;
113 	}
114 
115 	return (rv);
116 }
117