2.9BSD - /usr/src/lib/curses/clrtoeol.c

   1: # include   "curses.ext"
   2: 
   3: /*
   4:  *	This routine clears up to the end of line
   5:  *
   6:  * 3/5/81 (Berkeley) @(#)clrtoeol.c	1.2
   7:  */
   8: wclrtoeol(win)
   9: reg WINDOW  *win; {
  10: 
  11:     reg char    *sp, *end;
  12:     reg int     y, x;
  13:     reg char    *maxx;
  14:     reg int     minx;
  15: 
  16:     y = win->_cury;
  17:     x = win->_curx;
  18:     end = &win->_y[y][win->_maxx];
  19:     minx = _NOCHANGE;
  20:     maxx = &win->_y[y][x];
  21:     for (sp = maxx; sp < end; sp++)
  22:         if (*sp != ' ') {
  23:             maxx = sp;
  24:             if (minx == _NOCHANGE)
  25:                 minx = sp - win->_y[y];
  26:             *sp = ' ';
  27:         }
  28:     /*
  29: 	 * update firstch and lastch for the line
  30: 	 */
  31: # ifdef DEBUG
  32:     fprintf(outf, "CLRTOEOL: minx = %d, maxx = %d, firstch = %d, lastch = %d\n", minx, maxx - win->_y[y], win->_firstch[y], win->_lastch[y]);
  33: # endif
  34:     if (minx != _NOCHANGE) {
  35:         if (win->_firstch[y] > minx || win->_firstch[y] == _NOCHANGE)
  36:             win->_firstch[y] = minx;
  37:         if (win->_lastch[y] < maxx - win->_y[y])
  38:             win->_lastch[y] = maxx - win->_y[y];
  39:     }
  40: }

Defined functions