decision tables Re: Another stab at a "switch/case" construct (new proposal):

[Gerson Kurz]

On Sat, 30 Mar 2002 08:33:13 +0300 (MSK), Roman Suzi <rnd at onego.ru>
wrote:

>However, I'd liked to see a good paradigm for expressing
>decision tables like this one:
>
>F1 F2 F3 R
>0  0  *  do1
>0  1  0  do2
>0  1  1  do3
>1  *  *  do4

just an idea: subclass dict, implement pattern matching in the lookup
func? 

derived_dict( 
  (0,0,2) : do1,
  (0,1,0) : do2,
  (0,1,1) : do3,
  (1,2,2) : do4
)

with lookup

d[F1,F2,F3](args)