i should mention a test case that's pretty interesting. this will not work without the changes to tab2[].
; cat /tmp/cuneiform 𒐊 𒐋 𒑑 ; grep '[^x]' /tmp/cuneiform 𒐊 𒐋 𒑑 ; grep '[^α]' /tmp/cuneiform 𒐊 𒐋 𒑑 ; grep '[^ℙ]' /tmp/cuneiform 𒐊 𒐋 𒑑 ; grep '[^🎄]' /tmp/cuneiform 𒐊 𒐋 𒑑 - erik
