Actually, another good way to go is a dispatch table... a hash of keys being the names of your subroutines and the values being references to those subs... 
my %dispatch = (
  test1 => \&test1, test2 => \&test2, etc..
);

if(exists $dispatch{$op}) {
  $dispatch{op}->($arg);
}

[download]
that may not be exactly right, but it gives the idea...

also, you can check the definedness of subroutines... 

if(defined &$op)

[download]
but most people would cringe at this being a symbol table lookup.... dispatch table is a very common way to go about this...

                - Ant
                - Some of my best work - Fish Dinner

In reply to Re: Style question: symref or eval? by suaveant
in thread Style question: symref or eval? by VSarkiss

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