Option 2)

A callback would be simpler: 

{
   iterate {
      my (
         $env_name,
         $platform_name,
         $host_name,
         $target_name,
         $total_capacity,
         $free_capacity,
      ) = @_;
   
      local $, = "\t";
      local $\ = "\n";

      print $env_name,
            $platform_name,
            $host_name,
            $target_name,
            $total_capacity,
            $free_capacity;
   } $stuff;
}

[download]
sub iterate(&$) {
   my ($callback, $envs) = @_;
                      
   while (my ($env_name,      $platforms) = each %{$envs     }) {
   while (my ($platform_name, $hosts    ) = each %{$platforms}) {
   while (my ($host_name,     $targets  ) = each %{$hosts    }) {
   while (my ($target_name,   $target   ) = each %{$targets  }) {
      my $total_capacity = $target->{total_capacity};
      my $free_capacity  = $target->{free_capacity};
      
      $callback->(
         $env_name,
         $platform_name,
         $host_name,
         $target_name,
         $total_capacity,
         $free_capacity,
      );
   }}}}             
}

[download]

Tested.

In reply to Re^3: Help with Hash of hashes, is there a better way? by ikegami
in thread Help with Hash of hashes, is there a better way? by TeraMarv

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