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

[Isaac Dupree]

Neil Mitchell wrote:
> Hi Krasimir,
> 
> What is the strong justification for adding this to the base library?
> Is there some particular reason that it can't be done outside of base,
> or is there some particular need that makes this code desirable in the
> base libraries? Could it be added as a separate library on hackage,
> worked on for a while, and then merged into the base latter if
> appropriate?

'containers', not 'base'.  But still, I think it should stay in a 
separate package.  Someday Data.Tree may be removed from the more-used 
containers too.  (do we know who does use Data.Tree, btw?)

-Isaac