1 # include "curses.ext" 2 3 /* 4 * This routine erases everything on the window. 5 * 6 * 01/26/81 (Berkeley) @(#)clrtobot.c 1.1 7 */ 8 wclrtobot(win) 9 reg WINDOW *win; { 10 11 reg int y; 12 reg char *sp, *end, *maxx; 13 reg int startx, minx; 14 15 startx = win->_curx; 16 for (y = win->_cury; y < win->_maxy; y++) { 17 minx = _NOCHANGE; 18 end = &win->_y[y][win->_maxx]; 19 for (sp = &win->_y[y][startx]; sp < end; sp++) 20 if (*sp != ' ') { 21 maxx = sp; 22 if (minx == _NOCHANGE) 23 minx = sp - win->_y[y]; 24 *sp = ' '; 25 } 26 if (minx != _NOCHANGE) { 27 if (win->_firstch[y] > minx 28 || win->_firstch[y] == _NOCHANGE) 29 win->_firstch[y] = minx; 30 if (win->_lastch[y] < maxx - win->_y[y]) 31 win->_lastch[y] = maxx - win->_y[y]; 32 } 33 startx = 0; 34 } 35 win->_curx = win->_cury = 0; 36 } 37