Hello all. I have a problem that I have been bashing my head against the wall on. I have a computed hash with a very complex format (multiple layers deep). I want to be able to pick out a series of values from keys stored in this hash, and would like to be able to store the key names in an array. For example, the array would contain 
my @array = (
  '{title}',
  '{Rule}{Severity}',
  '{Rule}{weight}',
  '{Rule}{id}',
  '{Rule}{version}',
  '{Rule}{title}',
  '{Rule}{detailedDescription}{VulnDiscussion}',
  '{Rule}{detailedDescription}{Responsibility}',
  '{Rule}{detailedDescription}{IAControls}',
  '{Rule}{check}{check-content}',
  '{Rule}{fixtext}{content}',

);

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I would like to later process the array and pull individual results out of the parent hash on the fly, al la: 
foreach my $firstKey (sort keys %hashData) {
  foreach my $arrayKey (@array) {
    print $hashData{$firstKey}$arrayKey;
  }

}

[download]

With '$hashData{$firstKey}$arrayKey' being treated like '$hashData{$firstKey}{Rule}{detailedDescription}{VulnDiscussion}'.

The problem is that I don't know how deep the array key may get on the fly, and at a certain point can just write a block of code quicker for each item in the array rather than try and make it more malleable. However, I really want to make the configuration (order of items to extract, etc) more, well, configurable, and not have to add a block of code each time the group wants a new piece of data added.

Thanks in advance! T

In reply to Storing an indeterminate number of hash keys in a variable by banesong

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