In the case where you only have two or three cases, this works fine. If you have a case where you have many conditions you can use a dispatch table as such.

my %dispatch = ('foo_1' => \&bar,
                'foo_2' => \&foo_2,
                'bar_3' => \&foo_2,
                'bar_4' => \&foo_2,
                'blah_5' => \&foo_2,
                'default' => \&default,
               );
(defined $dispatch{$value}) 
   ? &{$dispatch{$value}}()
   : &{$dispatch{'default'}}();
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