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 /*
39 * Copy n chars(wchar_t) in window win from current cursor position to end
40 * of window into char buffer str. Return the number of chars copied.
41 */
42
43 int
winnwstr(WINDOW * win,wchar_t * wstr,int ncols)44 winnwstr(WINDOW *win, wchar_t *wstr, int ncols)
45 {
46 int counter = 0;
47 int cy = win->_cury;
48 chtype *ptr = &(win->_y[cy][win->_curx]),
49 *pmax = &(win->_y[cy][win->_maxx]);
50 wchar_t wc, *cp;
51 int scrw, s;
52 char cbuf[CSMAX+1];
53
54
55 while (ISCBIT(*ptr))
56 ptr--;
57
58 if (ncols < -1)
59 ncols = MAXINT;
60
61 while (counter < ncols) {
62 wc = RBYTE(*ptr);
63 scrw = mbscrw((int) wc);
64 (void) mbeucw((int) wc);
65 /* LINTED */
66 cp = (wchar_t *)cbuf;
67 for (s = 0; s < scrw; s++, ptr++) {
68 if ((wc = RBYTE(*ptr)) == MBIT)
69 continue;
70 *cp++ = wc;
71 if ((wc = LBYTE(*ptr) | MBIT) == MBIT)
72 continue;
73 *cp++ = wc;
74 }
75 *cp = (char)0;
76
77 if (_curs_mbtowc(&wc, cbuf, CSMAX) <= 0)
78 break;
79
80 *wstr++ = wc;
81 counter++;
82
83 if (ptr >= pmax) {
84 if (++cy == win->_maxy)
85 break;
86
87 ptr = &(win->_y[cy][0]);
88 pmax = ptr + win->_maxx;
89 }
90 }
91 if (counter < ncols)
92 *wstr = (wchar_t)0;
93
94 return (counter);
95 }
96