The free package

[ Tags: bsd3, control, library, monads ] [ Propose Tags ]

Free monads are useful for many tree-like structures and domain specific languages.

A Monad n is a free Monad for f if every Monad homomorphism from n to another monad m is equivalent to a natural transformation from f to m.

Cofree comonads provide convenient ways to talk about branching streams and rose-trees, and can be used to annotate syntax trees.

A Comonad v is a cofree Comonad for f if every Comonad homomorphism another comonad w to v is equivalent to a natural transformation from w to f.

Properties

Versions 0.1.0, 0.1.1, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 1.8.0, 1.8.0.1, 1.8.0.3, 1.8.0.4, 2.0, 2.0.1, 2.0.1.1, 2.0.2, 2.0.3, 2.1, 2.1.1, 2.1.1.1, 2.2, 3.0, 3.1, 3.1.1, 3.2, 3.3, 3.3.0.1, 3.3.0.2, 3.3.1, 3.4, 3.4.1, 3.4.2, 4.0, 4.1, 4.2, 4.4, 4.5, 4.6, 4.6.1, 4.7, 4.7.1, 4.8, 4.8.0.1, 4.9, 4.10.0.1, 4.11, 4.12, 4.12.1, 4.12.2, 4.12.3, 4.12.4
Dependencies base (>=4 && <4.7), bifunctors (==3.0.*), comonad (==3.0.*), comonad-transformers (==3.0.*), comonads-fd (==3.0.*), distributive (>=0.2.1 && <0.4), mtl (>=2.0.1.0 && <2.2), semigroupoids (==3.0.*), semigroups (>=0.8.3.1 && <0.9), transformers (>=0.2.0 && <0.4) [details]
License BSD3
Copyright Copyright (C) 2008-2012 Edward A. Kmett
Author Edward A. Kmett
Maintainer Edward A. Kmett <ekmett@gmail.com>
Category Control, Monads
Home page http://github.com/ekmett/free/
Bug tracker http://github.com/ekmett/free/issues
Source repository head: git clone git://github.com/ekmett/free.git
Uploaded Sun Jan 6 17:35:45 UTC 2013 by EdwardKmett
Updated Tue May 12 18:14:33 UTC 2015 by AdamBergmark to revision 1   [What is this?]
Distributions Arch:4.12.4, Debian:4.12.1, Fedora:4.12.4, FreeBSD:4.12.1, LTSHaskell:4.12.4, NixOS:4.12.4, Stackage:4.12.4, Tumbleweed:4.12.4
Downloads 147356 total (6021 in the last 30 days)
Rating 2.5 (votes: 3) [estimated by rule of succession]
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Status Docs uploaded by user
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