zippo: A simple lens-based, generic, heterogenous, type-checked zipper library

[ bsd3, data, library ] [ Propose Tags ]

This light-weight library provides a basic, but fully-type-checked zipper implementation, suitable for any algebraic data structure. Our implementation has no notion of "left" and "right", and instead uses lenses (from the "yall" package) to indicate directions to "navigate down to".

For a similar approach with many more features, but less type-safety see "pez".

UPDATE: I have stopped developing this package; instead look into "lens" v3.0 which includes similar functionality

CHANGES: 0.2 to 0.3:


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Versions 0.1, 0.2, 0.3
Dependencies base (==4.*), mtl (>=2), yall (>=0.2.1) [details]
License BSD-3-Clause
Author Brandon Simmons
Maintainer brandon.m.simmons@gmail.com
Category Data
Home page http://brandon.si/code/zippo/
Source repo head: git clone https://github.com/jberryman/zippo.git -b master
Uploaded by BrandonSimmons at Fri Sep 21 16:44:12 UTC 2012
Distributions NixOS:0.3
Downloads 1119 total (10 in the last 30 days)
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Status Docs available [build log]
Successful builds reported [all 1 reports]
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Readme for zippo-0.3

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A simple lens-based, lightweight, type-checked, heterogenous zipper library.

get with a

cabal install zippo

and check out the docs here.