F_INDEX
di->flags |= F_INDEX;
di->flags |= F_INDEX;
di->flags |= F_INDEX;
if ((di->flags & F_INDEX) != 0)
index = (di.flags & F_INDEX) ? di.index : 0;
if ((di.flags & ~F_INDEX) == (F_MONTH | F_DAYOFWEEK | F_VARIABLE) &&
if ((di.flags & ~F_INDEX) == (F_DAYOFWEEK | F_VARIABLE) &&