The pez package
PEZ is a generic zipper library. It uses lenses from the fclabels package to reference a "location" to move to in the zipper. The zipper is restricted to types in the Typeable class, allowing the user to "move up" through complex data structures such as mutually-recursive types.
Both the Typeable class and fclabels lenses can be derived in GHC, making it easy for the programmer to use a zipper with a minimum of boilerplate.
Please send any feature requests or bug reports along.
Changes 0.0.4 -> 0.1.0:
- use fclabels 1.0 - module renamed Data.Label.Zipper - 'ZPath' renamed 'Motion', define new Up type and instance - fclabels lenses now require wrapping with 'to' - 'moveTo' changed to 'move' - savedLens renamed flatten - SavedPath renamed To - removed experimental operators - using failure package for exceptions - etc., etc.
|Versions||0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.1.0|
|Dependencies||base (==4.*), failure (>=0.1), fclabels (>=1.0 && <1.2), thrist (==0.2.*) [details]|
|Copyright||Brandon Simmons, 2011|
|Source repository||head: git clone https://github.com/jberryman/pez.git -b master|
|Uploaded||Sat Jan 28 03:50:40 UTC 2012 by BrandonSimmons|
|Downloads||992 total (16 in the last 30 days)|
|Status||Docs uploaded by user
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