my &helper = -> @prev, @rest { ... }

[download]
Too much syntax! You can use lexically scoped subs in P6 -- you don't have to use pointy-blocks for everything: 
    my sub helper (@prev, @rest) { ... }

[download]
Now I'm wondering if its possible to get rid of the "if" statment using multi-subs; And after that if its possible to get rid of the indexing into @rest. Something like 
sub outer(*@vals)
{
   my multi sub helper (@prev) {
      take @prev
   }
   my multi sub helper (@prev, $current, *@rest) {
      $current.map: { helper [@prev, $_], *@rest }
   }
   gather { helper [], *@vals }
}

[download]
This is totally untested -- I haven't been able to install pugs yet.

--Dave.

In reply to Re^2: Perl6 Contest #2: P6 That Doesn't Look Like P5 by dpuu
in thread Perl6 Contest #2: P6 That Doesn't Look Like P5 by Limbic~Region

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