emented by
   having the default for a switch to pass the interpretation of
   the action code to a superclass.

<li> Use preinitialized Methods and invoke().

<li> The current Actor scheme.

<li> No tables, instead each State to have it's processChar() function
   and a switch statement on the incoming character.
</ol>

Schemes 1, 2 and 3 were actually somewhat implemented and compared.
#2 turned out to be the worst, about 3-4 times slower than all
the other schemes. The Actor scheme allows for quick virtu