xref: /titanic_44/usr/src/lib/libcurses/screen/winwstr.c (revision 45405cce0657d01714b3d014a0facf3bdce45736)
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	<sys/types.h>
36 #include	"curses_inc.h"
37 
38 int
39 winwstr(WINDOW *win, wchar_t *wstr)
40 {
41 	int	counter = 0;
42 	int	cy = win->_cury;
43 	chtype	*ptr = &(win->_y[cy][win->_curx]),
44 		*pmax = &(win->_y[cy][win->_maxx]);
45 	chtype	*p1st = &(win->_y[cy][0]);
46 	wchar_t	wc;
47 	int	sw, s;
48 	char	*cp, cbuf[CSMAX+1];
49 
50 	while (ISCBIT(*ptr) && (p1st < ptr))
51 		ptr--;
52 
53 	while (ptr < pmax) {
54 		wc = RBYTE(*ptr);
55 		sw = mbscrw((int)wc);
56 		(void) mbeucw((int)wc);
57 
58 		cp = cbuf;
59 		for (s = 0; s < sw; s++, ptr++) {
60 			if ((wc = RBYTE(*ptr)) == MBIT)
61 				continue;
62 			/* LINTED */
63 			*cp++ = (char) wc;
64 			if ((wc = LBYTE(*ptr) | MBIT) == MBIT)
65 				continue;
66 			/* LINTED */
67 			*cp++ = (char) wc;
68 		}
69 		*cp = '\0';
70 
71 		if (_curs_mbtowc(&wc, cbuf, CSMAX) <= 0)
72 			break;
73 
74 		*wstr++ = wc;
75 	}
76 
77 	*wstr = (wchar_t)0;
78 
79 	return (counter);
80 }
81