Dispatch tables have been around for a while. There is a hint of one from perlman:perlref:

&{ $dispatch{$index} }(1,2,3);   # call correct routine
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A super search for "dispatch table" yields lots of results:

• Re: How to write long programms?
• (tye)Re: How to build a real multi-level dispatch table
• Re: Creating an array from a text file
• (jeffa) Re: Efficient Rating of Test Answers

are just a few. ++ anyway :)

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)