Now uses screen address for all buffers.

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

#ifndef lint
static  char *sccsid = "@(#)wwmisc.c    3.3 83/09/15";
#endif

#include "ww.h"

/*
* Sufficient but not necessary test for total visibility.
*/
wwvisible(w)
register struct ww *w;
{
       register i;
       register nvis = 0;

       for (i = w->ww_i.t; i < w->ww_i.b; i++)
               nvis += w->ww_nvis[i];
       if (w->ww_hascursor
           && w->ww_cur.r >= w->ww_i.b && w->ww_cur.r < w->ww_i.t
           && w->ww_cur.c >= w->ww_i.l && w->ww_cur.c < w->ww_i.r
           && wwsmap[w->ww_cur.r][w->ww_cur.c] == w->ww_index)
               nvis++;
       return nvis == w->ww_i.nr * w->ww_i.nc;
}

char *
unctrl(c)
register char c;
{
       static char buf[5];
       register char *p = buf;

       if (c == DEL) {
               *p++ = '^';
               *p++ = '?';
       } else if (c < ' ') {
               *p++ = '^';
               *p++ = c + '@';
       } else if (c > DEL) {
               *p++ = '\\';
               *p++ = (c >> 6 & 3) + '0';
               *p++ = (c >> 3 & 7) + '0';
               *p++ = (c & 7) + '0';
       } else
               *p++ = c;
       *p = 0;
       return buf;
}