You should be clearer about the features you want to implement.

Sample code would be nice, a test suite even perfect.

It's not as straight forward as you might think, since Haskell is

So which features do you want to translate into Perl's world and how exactly?

Please be aware that because of Perl's dynamic nature you are free to write something like

sub multi {
   my ( $bob ) = @_;
   if ( $bob == 45 ) {
      print $bob;
      return;
   } elsif (...) {
      ...
      return;
   } else {
      ...
      return;
   }
}

[download]

anything else is - at best - "only" syntactic sugar.

Cheers Rolf

PS: Je suis Charlie!

In reply to Re: rough approximation to pattern matching using local by LanX
in thread rough approximation to pattern matching using local by gregory-nisbet

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