Re: Fwd: [Haskell-cafe] Data.Tree.Zipper in the standard libraries

Don Stewart wrote:

I wonder if there's a good case already:

The zipper module here has:

* A solid theoretical foundation (its a straightforward derivative of a data type)

and seems to go along with that data type, in the places it's used? is that right?

* Sensible API derived from Huet's papers, then implemented and used for Yi, one of the larger Haskell projects

interesting, so Yi would start using the version in `containers` if we put it there? And so would Krasimir's projects? If so, that sounds like a solid user-base... hmm. -Isaac