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 /*
37 * Read in ncols worth of data from window win and assign the
38 * chars to string. NULL terminate string upon completion.
39 * Return the number of chtypes copied.
40 */
41
42 int
winwchnstr(WINDOW * win,chtype * string,int ncols)43 winwchnstr(WINDOW *win, chtype *string, int ncols)
44 {
45 chtype *ptr = &(win->_y[win->_cury][win->_curx]);
46 int counter = 0;
47 int maxcols = win->_maxx - win->_curx;
48 int scrw, s, wc;
49 char *mp, mbbuf[CSMAX+1];
50 wchar_t wch;
51 chtype rawc;
52 chtype attr;
53
54 if (ncols < 0)
55 ncols = MAXINT;
56
57 while (ISCBIT(*ptr)) {
58 ptr--;
59 maxcols++;
60 }
61
62 while ((counter < ncols) && maxcols > 0) {
63 attr = *ptr & A_WATTRIBUTES;
64 rawc = *ptr & A_WCHARTEXT;
65 (void) mbeucw((int)RBYTE(rawc));
66 scrw = mbscrw((int)RBYTE(rawc));
67 for (mp = mbbuf, s = 0; s < scrw; s++, maxcols--, ptr++) {
68 if ((wc = (int)RBYTE(rawc)) == MBIT)
69 continue;
70 /* LINTED */
71 *mp++ = (char) wc;
72 if ((wc = (int)(LBYTE(rawc) | MBIT)) == MBIT)
73 continue;
74 /* LINTED */
75 *mp++ = (char) wc;
76 }
77 *mp = '\0';
78 if (_curs_mbtowc(&wch, mbbuf, CSMAX) <= 0)
79 break;
80 *string++ = wch | attr;
81 counter++;
82 }
83 if (counter < ncols)
84 *string = (chtype) 0;
85 return (counter);
86 }
87