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 /*
23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 /*LINTLIBRARY*/
41
42 #include <sys/types.h>
43 #include "curses_inc.h"
44
45 /*
46 * Copy n chars in window win from current cursor position to end
47 * of window into char buffer str. Return the number of chars copied.
48 */
49
50 int
winnstr(WINDOW * win,char * str,int ncols)51 winnstr(WINDOW *win, char *str, int ncols)
52 {
53 int counter = 0;
54 int cy = win->_cury;
55 chtype *ptr = &(win->_y[cy][win->_curx]),
56 *pmax = &(win->_y[cy][win->_maxx]);
57 chtype wc;
58 int eucw, scrw, s;
59
60
61 while (ISCBIT(*ptr))
62 ptr--;
63
64 if (ncols < -1)
65 ncols = MAXINT;
66
67 while (counter < ncols) {
68 scrw = mbscrw((int) RBYTE(*ptr));
69 eucw = mbeucw((int) RBYTE(*ptr));
70 if (counter + eucw > ncols)
71 break;
72
73 for (s = 0; s < scrw; s++, ptr++) {
74 if ((wc = RBYTE(*ptr)) == MBIT)
75 continue;
76 /* LINTED */
77 *str++ = (char) wc;
78 counter++;
79 if ((wc = LBYTE(*ptr) | MBIT) == MBIT)
80 continue;
81 /* LINTED */
82 *str++ = (char) wc;
83 counter++;
84 }
85
86 if (ptr >= pmax) {
87 if (++cy == win->_maxy)
88 break;
89
90 ptr = &(win->_y[cy][0]);
91 pmax = ptr + win->_maxx;
92 }
93 }
94 if (counter < ncols)
95 *str = '\0';
96
97 return (counter);
98 }
99