projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 6e1c93d0 DF |
1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef lint | |
| 8 | static char sccsid[] = "@(#)erase.c 5.1 (Berkeley) %G%"; | |
| 9 | #endif not lint | |
| 10 | ||
| cc1a8c38 KA |
11 | # include "curses.ext" |
| 12 | ||
| 13 | /* | |
| 14 | * This routine erases everything on the window. | |
| 15 | * | |
| cc1a8c38 KA |
16 | */ |
| 17 | werase(win) | |
| 18 | reg WINDOW *win; { | |
| 19 | ||
| 20 | reg int y; | |
| 21 | reg char *sp, *end, *start, *maxx; | |
| 22 | reg int minx; | |
| 23 | ||
| c4a44a4e KA |
24 | # ifdef DEBUG |
| 25 | fprintf(outf, "WERASE(%0.2o)\n", win); | |
| 26 | # endif | |
| cc1a8c38 KA |
27 | for (y = 0; y < win->_maxy; y++) { |
| 28 | minx = _NOCHANGE; | |
| 29 | start = win->_y[y]; | |
| 30 | end = &start[win->_maxx]; | |
| 31 | for (sp = start; sp < end; sp++) | |
| 32 | if (*sp != ' ') { | |
| 33 | maxx = sp; | |
| 34 | if (minx == _NOCHANGE) | |
| 35 | minx = sp - start; | |
| 36 | *sp = ' '; | |
| 37 | } | |
| f06658c3 JB |
38 | if (minx != _NOCHANGE) |
| 39 | touchline(win, y, minx, maxx - win->_y[y]); | |
| cc1a8c38 KA |
40 | } |
| 41 | win->_curx = win->_cury = 0; | |
| 42 | } |