rework for pmake 2.1
[unix-history] / usr / src / lib / libcurses / insertln.c
CommitLineData
87c6fcf8 1/*
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2 * Copyright (c) 1981 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms are permitted
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6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * advertising materials, and other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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DF
16 */
17
18#ifndef lint
a399f6c8 19static char sccsid[] = "@(#)insertln.c 5.3 (Berkeley) %G%";
2f14f200 20#endif /* not lint */
87c6fcf8 21
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22# include "curses.ext"
23
24/*
25 * This routine performs an insert-line on the window, leaving
26 * (_cury,_curx) unchanged.
27 *
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28 */
29winsertln(win)
30reg WINDOW *win; {
31
32 reg char *temp;
33 reg int y;
34 reg char *end;
e3fd04f0 35 reg int x;
259c2c61 36
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JB
37#ifdef DEBUG
38 fprintf(outf, "INSERTLN(%0.2o)\n", win);
39#endif
40 if (win->_orig == NULL)
41 temp = win->_y[win->_maxy - 1];
259c2c61 42 for (y = win->_maxy - 1; y > win->_cury; --y) {
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JB
43 if (win->_orig == NULL)
44 win->_y[y] = win->_y[y - 1];
45 else
46 bcopy(win->_y[y - 1], win->_y[y], win->_maxx);
47 touchline(win, y, 0, win->_maxx - 1);
259c2c61 48 }
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JB
49 if (win->_orig == NULL)
50 win->_y[y] = temp;
51 else
52 temp = win->_y[y];
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53 for (end = &temp[win->_maxx]; temp < end; )
54 *temp++ = ' ';
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55 touchline(win, y, 0, win->_maxx - 1);
56 if (win->_orig == NULL)
57 _id_subwins(win);
259c2c61 58}