ONECOL
how |= ONECOL;
if ((how & (TERSE|ONECOL)) == (TERSE|ONECOL)) {
if ((count & 3) && (how & (TERSE|ONECOL)) == TERSE)
switch (how & (TERSE|ONECOL)) {
case ONECOL:
case TERSE|ONECOL: