vi_HARDTABS
if (tab && value(vi_HARDTABS))
i = (destcol / value(vi_HARDTABS)) + (destcol % value(vi_HARDTABS));
if (value(vi_HARDTABS)) {
j = destcol / value(vi_HARDTABS) - outcol / value(vi_HARDTABS);
j += destcol % value(vi_HARDTABS);
if (tab && value(vi_HARDTABS))
i = destcol % value(vi_HARDTABS)
+ destcol / value(vi_HARDTABS);
if (value(vi_HARDTABS))
outcol -= outcol % value(vi_HARDTABS); /* outcol &= ~7; */
if (value(vi_HARDTABS) && tab && !insmode && destcol - outcol > 1) {
i = tabcol(outcol, value(vi_HARDTABS));