I was playing with something very similar to this but it wasn't coming out right. I gave up after an hour or so to go tackle another problem that didn't get solved (bike repair). 
sub foo{
  my $F= shift;
  @G = @_ ? @{foo(@_)} : [] x scalar @$F;
  foreach my $e (@$F){
    push @H, map {[unshift @{$_}, "$e($i)"]} @G;
  }
  \@H;
}

[download]
That was of course just trying to get it to work, a proper golf would have been shorter.

--
perl -pe "s/\b;([mnst])/'\1/mg"

In reply to Re4: (GOLF) combine N arrays by belg4mit
in thread (GOLF) combine N arrays by suaveant

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