The flow package

[ Tags: combinators, functions, library, mit, utility ] [ Propose Tags ]

Flow provides operators for writing more understandable Haskell.

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Versions 1.0.0, 1.0.1, 1.0.2, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9 (info)
Change log
Dependencies base (<5) [details]
License MIT
Maintainer Taylor Fausak
Category Combinators, Functions, Utility
Home page
Bug tracker
Source repository head: git clone
Uploaded Wed Aug 30 00:12:40 UTC 2017 by fozworth
Distributions LTSHaskell:1.0.9, NixOS:1.0.9, Stackage:1.0.9, Tumbleweed:1.0.7
Downloads 969 total (54 in the last 30 days)
Rating 2.5 (votes: 3) [estimated by rule of succession]
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Status Docs available [build log]
Last success reported on 2017-08-30 [all 1 reports]
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Maintainer's Corner

For package maintainers and hackage trustees

Readme for flow-1.0.9

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Write more understandable Haskell. [![Version badge][]][version] [![Build badge][]][build] Flow is a package that provides functions and operators for writing more understandable Haskell. It is an alternative to some common idioms like [($)][] for function application and [(.)][] for function composition.


Flow requires a Haskell compiler. It is tested with recent versions of GHC, but older or different compilers should be acceptable. For installation with Cabal, Flow requires at least Cabal 1.8.


To add Flow as a dependency to your package, add it to your Cabal file.

build-depends: flow ==1.0.*

See [the change log][] for a detailed list of changes.


Flow is designed to be imported unqualified. It does not export anything that conflicts with [the base package][].

import Flow

Cheat sheet

Flow | Base --------------- | ------------- <code>x |> f</code> | x & f <code>f <| x</code> | f $ x apply x f | f x f .> g | f >>> g g <. f | g . f compose f g x | g (f x) x !> f | - f <! x | f $! x apply' x f | seq x (f x) For more information about Flow, please read [the Haddock documentation][]. [Flow]: [Version badge]: [version]: [Build badge]: [build]: [($)]: [(.)]: [the change log]: [the base package]: [the haddock documentation]: