Oleg's Zipper FS https://github.com/jkarni/ZipperFS

Latest on Hackage:0.0.2

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.

PublicDomain licensed by Amr Sabry, R. Kent Dybvig, Simon L. Peyton Jones, Oleg Kiselyov
Maintained by Julian K. Arni
This is a Cabalized and somewhat modernized/cleaned-up package containing Oleg's famous ZipperFS. For details, see <http://lambda-the-ultimate.org/node/1036>.

A demonstration of how to use it is contained in zfs.pdf. The short of the matter is:

"Load ZFS.hs into GHCi
Start up the system: main at the GHCi prompt
From some terminal: 'telnet localhost 1503'"

And then you can play around with it.

This package also comes with an old implementation of delimited continuations. Ideally it would be updated to use the maintained package, CC-Delcont <http://hackage.haskell.org/cgi-bin/hackage-scripts/package/CC-delcont>. But I don't know how.
Used by 1 package:
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