Got rid of 'curwin'.

[unix-history] / usr / src / usr.bin / window / wwdelete.c

#ifndef lint
static  char *sccsid = "@(#)wwdelete.c  3.3 83/08/16";
#endif

#include "ww.h"

/*
* Pull w free from the cover list.
*/
wwdelete(w)
register struct ww *w;
{
       {
               register i = w->ww_w.t;
               register char *touched = &wwtouched[i];

               for (; i < w->ww_w.b; i++, touched++) {
                       register int j = w->ww_w.l;
                       register char *smap = &wwsmap[i][j];
                       register union ww_char *ns = &wwns[i][j];

                       for (j = w->ww_w.nc; --j >= 0;) {
                               if (*smap == w->ww_index) {
                                       *touched = 1;
                                       *smap++ = WWX_NOBODY;
                                       ns++->c_w = ' ';
                               } else {
                                       smap++;
                                       ns++;
                               }
                       }
               }
       }
       {
               register struct ww *wp;

               for (wp = w->ww_forw; wp != &wwhead; wp = wp->ww_forw) {
                       wp->ww_order--;
                       wwuncover(w, wp);
               }
       }
       {
               register i;

               for (i = 0; i < w->ww_w.nr; i++) {
                       register j;
                       register char *win = w->ww_win[i];
                       register char *cov = w->ww_cov[i];
                       for (j = w->ww_w.nc; --j >= 0;) {
                               if (*win != 0) {
                                       if ((*win++ &= ~WWM_COV) == 0)
                                               w->ww_nvis[i]++;
                               } else
                                       win++;
                               *cov++ = WWX_NOBODY;
                       }
               }
       }
       w->ww_back->ww_forw = w->ww_forw;
       w->ww_forw->ww_back = w->ww_back;
       w->ww_forw = w->ww_back = 0;
}