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All,
First I would like to give a sales pitch on my one and only publicly available module - Tie::Hash::Sorted. It will be the basis for the new module and it doesn't appear to be well known or well used. You can skip down to the Proposal section without losing anything if you are already familiar with Tie::Hash::Sorted.

Why use Tie::Hash::Sorted

It seems that on a daily basis, some one asks how to sort a hash. You don't need a module to do that for you, so why use one?

Hash stays sorted even with adds/deletes/modifies
Allows user to change sort routine at any time
Contains numerous optimizations to prevent resorting if unnecessary
Sort routine allows sorting based off lexicals (via closures)

I have also considered adding several new features, but the response wasn't very overwhelming.

Proposal for Tie::Hash::Ranked

The idea was inspired by this question as well as not wanting to give Tie::Hash::Sorted code bloat by adding functionality. The following methods would be added:

Top_X - keys, values, and each will only return the top x entries in hash.
Bottom_X - same as Top_X for bottom x entries
Get_Rank - Given a hash key, will return rank
Start_Key/End_Key - limit output to only the 21^st - 25^th place for instance.

Feedback Request

Here are the things I would appreciate feedback on:

Usefulness (is it worth it)

Tie::Hash::Sorted

Proposed name of module and/or methods
What functionality should be added/removed/modified
Anything else you think is worth saying

Cheers - L~R

In reply to RFC - Tie::Hash::Ranked by Limbic~Region

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