1 /****************************************************************************
2 * Copyright 2020 Thomas E. Dickey *
3 * Copyright 1998-2010,2017 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
27 * authorization. *
28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
32 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
33 * and: Thomas E. Dickey 1996-on *
34 ****************************************************************************/
35
36 /*
37 ** lib_inchstr.c
38 **
39 ** The routine winchnstr().
40 **
41 */
42
43 #include <curses.priv.h>
44
45 MODULE_ID("$Id: lib_inchstr.c,v 1.17 2020/02/02 23:34:34 tom Exp $")
46
NCURSES_EXPORT(int)47 NCURSES_EXPORT(int)
48 winchnstr(WINDOW *win, chtype *str, int n)
49 {
50 int i = 0;
51
52 T((T_CALLED("winchnstr(%p,%p,%d)"), (void *) win, (void *) str, n));
53
54 if (!win || !str) {
55 i = ERR;
56 } else {
57 int row = win->_cury;
58 int col = win->_curx;
59 NCURSES_CH_T *text = win->_line[row].text;
60
61 for (; (n < 0 || (i < n)) && (col + i <= win->_maxx); i++) {
62 str[i] = (((chtype) CharOf(text[col + i]) & A_CHARTEXT) |
63 AttrOf(text[col + i]));
64 }
65 str[i] = (chtype) 0;
66 }
67
68 returnCode(i);
69 }
70