I suppose I'm nitpicking here, but something has always bothered me about this answer (and those like it). Perl already provides a perfectly code "dispatch table", that is, a hash that maps subroutine names to subroutine references! I'm not sure why people are so strongly discouarged from using it. It's one thing to discourage accessing this hash for variables, since that leads to global variables and other such evil, but in this case you're just wasting effort to create something that already exists.
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