@hackage keys3.12.5

Keyed functors and containers

Categories
- Data Structures
License
BSD-3-Clause
Maintainer
Edward A. Kmett <ekmett@gmail.com>
Links
Versions
- 3.12.5 Sat, 10 Jan 2026
- 3.12.4 Mon, 3 Mar 2025
- 3.12.3 Fri, 5 Jul 2024
- 3.12.2 Fri, 10 May 2019
- 3.12.1 Tue, 3 Jul 2018
- 3.12 Mon, 2 Jul 2018

Installation
In your cabal file:
Tested Compilers
- 9.12.2
- 9.10.3
- 9.8.4
- 9.6.7
- 9.4.8
- 9.2.8
- 9.0.2
- 8.10.7
- 8.8.4
- 8.6.5
- 8.4.4
- 8.2.2
- 8.0.2
Dependencies (10)
- array >=0.3.0.2 && <0.6
- base >=4.9 && <5
- comonad >=4 && <6
- containers >=0.3 && <0.9
- free >=4 && <6
- hashable >=1.1.2.3 && <1.6
Dependents (35)
@hackage/Cabal, @hackage/algebra, @hackage/compressed, @hackage/wikimusic-api-spec, @hackage/these, @hackage/wikimusic-model-hs, Show all…

keys

This package provides a bunch of ad hoc classes for accessing parts of a container.

In practice this package is largely subsumed by the lens package, but it is maintained for now as it has much simpler dependencies.

Contact Information

Contributions and bug reports are welcome!

Please feel free to contact me through github or on the #haskell IRC channel on irc.freenode.net.

-Edward Kmett