rjray,
You may be interested in Merge Algorithm (Combining Sorted Lists). In it, I provided a more generic (higher order) approach to fetching items from the lists.

You may also be interested in an article I wrote for perl.com on Understanding And Using Iterators.

Do you use iterators a lot at work? I once combined 4 different iterators to solve a problem and was wondering if anyone had ever used more. I am rather passionate about iterators because my brain seems to have a hard time thinking recursively.

Cheers - L~R

In reply to Re: Variation on the "Higher Order Perl" Iterator Pattern by Limbic~Region
in thread Variation on the "Higher Order Perl" Iterator Pattern by rjray

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