[Haskell-cafe] zipper for rose trees? (Data.Tree)

Krasimir Angelov kr.angelov at gmail.com
Wed Apr 23 16:40:55 EDT 2008

Hi Graham,

There is one implementation here:


I wrote it for Yi but it is quite general. It is a pity that we don't
have it in the standard libraries. It is not completely tested but it
seems to work for me.


2008/4/23 Graham Fawcett <graham.fawcett at gmail.com>:
> Hi folks,
> Is there a common zipper implementation for the "Tree a" datatype, defined
> in Data.Tree?  The wiki gives examples for binary trees and B-trees, but not
> for these.
> Thanks,
> Graham
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