What if you take one list of strings and convert it to a HoHoHo...?

The top level key would be the first letter of each string. At each level, you have either the string to eq against, or a hash of choices for the next letter.

EG:
my $tree = 
{f => 
      {o => 'foo',
       i => 
            {r => 'fire',
             n => 'fine',
            },
      },
 b => 'bar',
}

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You would know instantly that 'monk' isn't in the second list because !exists($tree->{m}).
You would know 'balloon' doesn't exist pretty quick because exists($tree->{b}) and ref($tree->{b}) ne 'HASH' and $tree->{b} ne 'balloon'.

If the second list is something constant without too much duplication early in the string, such as a dictionary, then it should work really well.

In reply to Re: Better way to search array for elements in other array? by SuicideJunkie
in thread Better way to search array for elements in other array? by echo5

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