xref: /illumos-gate/usr/src/lib/libcurses/screen/winwstr.c (revision ddb365bfc9e868ad24ccdcb0dc91af18b10df082)
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 /*LINTLIBRARY*/
32 
33 #include	<sys/types.h>
34 #include	"curses_inc.h"
35 
36 int
37 winwstr(WINDOW *win, wchar_t *wstr)
38 {
39 	int	counter = 0;
40 	int	cy = win->_cury;
41 	chtype	*ptr = &(win->_y[cy][win->_curx]),
42 		*pmax = &(win->_y[cy][win->_maxx]);
43 	chtype	*p1st = &(win->_y[cy][0]);
44 	wchar_t	wc;
45 	int	sw, s;
46 	char	*cp, cbuf[CSMAX+1];
47 
48 	while (ISCBIT(*ptr) && (p1st < ptr))
49 		ptr--;
50 
51 	while (ptr < pmax) {
52 		wc = RBYTE(*ptr);
53 		sw = mbscrw((int)wc);
54 		(void) mbeucw((int)wc);
55 
56 		cp = cbuf;
57 		for (s = 0; s < sw; s++, ptr++) {
58 			if ((wc = RBYTE(*ptr)) == MBIT)
59 				continue;
60 			/* LINTED */
61 			*cp++ = (char) wc;
62 			if ((wc = LBYTE(*ptr) | MBIT) == MBIT)
63 				continue;
64 			/* LINTED */
65 			*cp++ = (char) wc;
66 		}
67 		*cp = '\0';
68 
69 		if (_curs_mbtowc(&wc, cbuf, CSMAX) <= 0)
70 			break;
71 
72 		*wstr++ = wc;
73 	}
74 
75 	*wstr = (wchar_t)0;
76 
77 	return (counter);
78 }
79