23 Apr
2008
23 Apr
'08
6:43 p.m.
On Wed, Apr 23, 2008 at 4:40 PM, Krasimir Angelov
Hi Graham,
There is one implementation here:
http://code.haskell.org/yi/Data/Tree/
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.
Thank very much, Krasimir! I agree, it would be a good addition to the standard library. I've added a link to your implementation from the Zipper page in the Haskell wiki. Regards, Graham