pipes: Compositional pipelines
"Iteratees done right". This library implements iteratees/enumerators/enumeratees simply and elegantly, using different naming conventions.
Advantages over traditional iteratee implementations:
Simpler semantics: There is only one data type (
Pipe
), two primitives (await
andyield
), and only one way to composePipe
s (.
). In fact, this library implements its entire behavior using itsMonad
andCategory
instances and enforces their laws strictly!Clearer naming conventions: Enumeratees are called
Pipe
s, Enumerators areProducer
s, and Iteratees areConsumer
s.Producer
s andConsumer
s are just type synonyms forPipe
s with either the input or output end closed.Pipes are Categories: You compose them using ordinary composition.
Intuitive: Pipe composition is easier to reason about because it is a true
Category
. Composition works seamlessly and you don't have to worry about restarting iteratees, feeding new input, etc. "It just works".Vertical concatenation works flawlessly on everything: (
>>
) concatenatesPipe
s, but since everything is aPipe
, you can use it to concatenateProducer
s,Consumer
s, and even intermediatePipe
stages. Vertical Concatenation always works the way you expect, picking up where the previousPipe
left off.Bidirectionality: The library now provides a bidirectional
Pipe
type, called aProxy
.
Check out Control.Pipe.Tutorial for a copious introductory tutorial and
Control.Pipe for the actual implementation. Control.Proxy.Tutorial
introduces bidirectional iteratees that are backwards-compatible with Pipe
s
and Control.Proxy provides the implementation.
Modules
[Index]
Downloads
- pipes-2.3.0.tar.gz [browse] (Cabal source package)
- Package description (revised from the package)
Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
Versions [RSS] | 1.0, 1.0.1, 1.0.2, 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.4.0, 2.5.0, 3.0.0, 3.1.0, 3.2.0, 3.3.0, 4.0.0, 4.0.1, 4.0.2, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.2.0, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 4.3.10, 4.3.11, 4.3.12, 4.3.13, 4.3.14, 4.3.15, 4.3.16 |
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Dependencies | base (>=4 && <5), index-core, transformers, transformers-free, void [details] |
Tested with | ghc ==7.4.1 |
License | BSD-3-Clause |
Copyright | 2012 Gabriel Gonzalez |
Author | Gabriel Gonzalez |
Maintainer | Gabriel439@gmail.com |
Revised | Revision 1 made by phadej at 2016-05-31T13:43:58Z |
Category | Control, Enumerator |
Bug tracker | https://github.com/Gabriel439/Haskell-Pipes-Library/issues |
Source repo | head: git clone https://github.com/Gabriel439/Haskell-Pipes-Library |
Uploaded | by GabrielGonzalez at 2012-09-05T21:18:56Z |
Distributions | Arch:4.3.16, Debian:4.3.14, Fedora:4.3.16, LTSHaskell:4.3.16, NixOS:4.3.16, Stackage:4.3.16 |
Reverse Dependencies | 189 direct, 173 indirect [details] |
Downloads | 106425 total (400 in the last 30 days) |
Rating | 2.75 (votes: 10) [estimated by Bayesian average] |
Your Rating | |
Status | Docs available [build log] Last success reported on 2016-06-04 [all 1 reports] |