Hi all, I'm trying to merge lists of words into a tree-like structure. For example, given the following input: 
my @list1 = qw/Truck Car Byke/;
my @list2 = qw/Truck Car Scooter/;
my @list3 = qw/Truck Trailer Skates/;

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Obtain a tree-like structure like this: 
Truck
   |_____ Car
   |       |_______Byke
   |       |_______Scooter
   |
   |_____Trailer
           |_______Skates

[download]

Maybe implementing the tree as a hash of hash refs would be a good solution: 

{'Truck' => {
              'Car' => {
                   'Byke' => ?,
                   'Scooter' => ?
              },
             'Trailer' => {
                  'Skates' => ?
            }
}

[download]

But every attemp to implement an algorithm to make the conversion ends with a too obfuscated code involving too much recursion. (Well, surely, the obfuscation comes from me)

Maybe I'm missing a simpler solution. Any idea on how to solve this would be highly appreciated

Thank you very much in advance

citromatik

In reply to trees of word lists by citromatik

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