Packages tagged control

697 packages have this tag.

[Merge tag] (trustees only)

Related tags: library (692), bsd3 (488), mit (117), deprecated (65), monads (57), data (36), program (35), public-domain (32), concurrency (21), pipes (20), failure (16), monad (15), parallelism (13), comonads (12), effect (12), gpl (12), error-handling (11), network (11), bsd2 (10), system (9), distributed-computing (8), categories (6), frp (6), mpl (6), reactivity (6), cloud-haskell (5), enumerator (5), lgpl (5), logic (5), apache (4), conversion (4), monadic-regions (4), ai (3), algebra (3), composition (3), data-structures (3), development (3), exceptions (3), language (3), prelude (3), recursion (3), streaming (3), template-haskell (3), text (3), category (2), combinators (2), constraints (2), cryptography (2), database (2), dsl (2), general (2), generics (2), http (2), io (2), logging (2), math (2), mutable-state (2), parsing (2), polymorphism (2), time (2), user-interfaces (2), applicative (1), benchmarking (1), concurrent (1), contract (1), ...

Name
DLs
Rating
Description
Tags
Last U/L
Maintainer
AAI540.0Abstract Application Interface. (control, library, mit)2015-08-03bash0r
AbortT-monadstf240.0Monads-tf instances for the AbortT monad transformer. (bsd3, control, library)2012-12-07GregoryCrosswhite
AbortT-mtl430.0mtl instances for the AbortT monad transformer (bsd3, control, library)2016-02-06GregoryCrosswhite
AbortT-transformers850.0A monad and monadic transformer providing "abort" functionality (bsd3, control, library)2016-02-06GregoryCrosswhite
Adaptive-Blaisorblade140.0Library for incremental computing. (bsd3, control, library, program)2013-01-26PaoloGiarrusso
CC-delcont280.0Delimited continuations and dynamically scoped variables (control, library)2016-05-11DanDoel
CC-delcont-alt290.0Three new monad transformers for multi-prompt delimited control (bsd3, control, library)2012-10-23KidoTakahiro
CC-delcont-cxe240.0A monad transformers for multi-prompt delimited control (bsd3, control, library)2011-10-12KidoTakahiro
CC-delcont-exc120.0A monad transformers for multi-prompt delimited control (bsd3, control, library)2011-10-12KidoTakahiro
CC-delcont-ref130.0A monad transformers for multi-prompt delimited control using refercence cells (bsd3, control, library)2011-10-12KidoTakahiro
CC-delcont-ref-tf260.0A monad transformers for multi-prompt delimited control using refercence cells (bsd3, control, library)2011-10-18KidoTakahiro
Cascade130.0Playing with reified categorical composition (control, library, public-domain)2014-11-14NoahEasterly
Catana240.0A monad for complex manipulation of a stream. (bsd3, control, library)2012-02-22DustinDeWeese
ChannelT660.0Generalized stream processors (bsd3, control, enumerator, iteratee, library, pipes, proxies)2018-01-28pthariensflame
ClassyPrelude110.0Prelude replacement using classes instead of concrete types where reasonable (bsd3, control, data, library)2010-05-31SveinOveAas
Clean (deprecated in favor of definitive-base)290.0A light, clean and powerful utility library (bsd3, control, deprecated, library)2013-06-10MarcCoiffier
ComonadSheet160.0A library for expressing spreadsheet-like computations as the fixed-points of comonads. (bsd3, control, library)2014-06-28kwf
Compactable (deprecated in favor of compactable)280.0A generalization for containers that can be stripped of Nothing (bsd3, control, deprecated, library)2017-03-06fresheyeball
Concurrential510.0Mix concurrent and sequential computation (bsd3, control, library)2015-09-04alexvieth
Configurable140.0Declare types as Configurable then specialize them all in one place (control, library, mit)2012-10-19JosephAbrahamson
ConstraintKinds490.0Repackages standard type classes with the ConstraintKinds extension (bsd3, control, library)2014-05-20MikeIzbicki
ContArrow370.0Control.Arrow.Transformer.Cont (bsd3, control, library)2009-09-21EvgenyJukov
Control-Engine (deprecated)640.0A parallel producer/consumer engine (thread pool) (bsd3, control, deprecated, library)2009-08-18ThomasDuBuisson
Control-Monad-MultiPass160.0A Library for Writing Multi-Pass Algorithms. (bsd3, control, library)2013-06-14KevinBackhouse
Control-Monad-ST2170.0A variation on the ST monad with two type parameters. (bsd3, control, library)2013-06-11KevinBackhouse
Coroutine150.0Type-safe coroutines using lightweight session types. (bsd3, control, library)2008-12-18RyanIngram
DeepArrow580.0Arrows for "deep application" (bsd3, combinators, control, library)2013-08-13ConalElliott
EitherT (deprecated in favor of either)290.0EitherT monad transformer (bsd3, control, deprecated, library)2012-04-22EyalLotem
Empty170.0A type class for empty containers (bsd3, control, library)2017-03-02fresheyeball
Etage1970.0A general data-flow framework (ai, control, lgpl, library)2014-05-10MitarMilutinovic
FailureT (deprecated in favor of transformers)200.0Failure Monad Transformer (control, deprecated, failure, library, public-domain)2013-03-14MatthewFarkasDyck
FastPush320.0A monad and monad transformer for pushing things onto a stack very fast. (bsd3, control, library)2017-02-26wyager
ForkableT260.0Forkable monad transformers (bsd3, control, library)2015-01-18AndrasSlemmer
Get230.0get stuff out of stuff (bsd3, control, library)2018-01-10MarisaVeryMoe
GotoT-transformers220.0A monad and monadic transformer providing "goto" functionality (bsd3, control, library)2012-07-22GregoryCrosswhite
IfElse1110.0Anaphoric and miscellaneous useful control-flow (bsd3, control, library)2008-12-24IvanPerez, JeffersonHeard, keera_studios_ci
ImperativeHaskell582.0A library for writing Imperative style haskell. (control, development, embedded, gpl, language, library)2012-06-07MatthewMirman
InfixApplicative270.0liftA2 for infix operators. (bsd3, control, library)2009-12-24ThomasDavie
JuicyPixels-util190.0Convert JuicyPixel images into RGBA format, flip, trim and so on (bsd3, control, library)2014-10-18FumiakiKinoshita
Kleislify220.0Variants of Control.Arrow functions, specialised to kleislis. (bsd3, control, library)2012-05-15DylanJust
Kriens170.0Category for Continuation Passing Style (bsd3, control, library)2015-12-07matteo_provenzano
List2900.0List monad transformer and class (bsd3, control, library)2017-09-27YairChuchem
ListT500.0List transformer (bsd3, control, library)2017-12-14MatthewFarkasDyck
LogicGrowsOnTrees790.0a parallel implementation of logic programming using distributed tree exploration (bsd3, control, distributed-computing, library, logic, parallelism)2014-03-09GregoryCrosswhite
LogicGrowsOnTrees-MPI220.0an adapter for LogicGrowsOnTrees that uses MPI (bsd3, control, distributed-computing, library, logic, parallelism)2014-03-09GregoryCrosswhite
LogicGrowsOnTrees-network360.0an adapter for LogicGrowsOnTrees that uses multiple processes running in a network (bsd3, control, distributed-computing, library, logic, parallelism)2016-04-05GregoryCrosswhite
LogicGrowsOnTrees-processes270.0an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism (bsd3, control, distributed-computing, library, logic, parallelism)2014-03-09GregoryCrosswhite
MHask230.0The category of monads (bsd3, control, library)2013-08-06DanBurton
MaybeT350.0MaybeT monad transformer (bsd3, control, library)2008-12-21CaleGibbard, DonaldStewart, EricKidd
MaybeT-monads-tf (deprecated in favor of monads-tf)210.0MaybeT monad transformer compatible with monads-tf (deprecated) (bsd3, control, deprecated, library)2011-06-22BenMillwood
MaybeT-transformers180.0MaybeT monad transformer using transformers instead of mtl. (bsd3, control, library)2010-06-28ErikHesselink, SebastiaanVisser
Mecha130.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
Mechs140.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
MissingM130.0findM and other missing 'M's (bsd3, control, library)2012-11-15DylanJust
MonadCatchIO-mtl (deprecated in favor of exceptions)1730.0Monad-transformer version of the Control.Exception module (bsd3, control, deprecated, library)2014-01-04DanielGorin
MonadCatchIO-mtl-foreign (deprecated)210.0Polymorphic combinators for working with foreign functions (bsd3, control, deprecated, library)2010-05-29AntoineLatter
MonadCatchIO-transformers (deprecated in favor of exceptions)2740.0Monad-transformer compatible version of the Control.Exception module (bsd3, control, deprecated, library)2014-12-23AriePeterson
MonadCatchIO-transformers-foreign (deprecated)220.0Polymorphic combinators for working with foreign functions (bsd3, control, deprecated, library)2010-05-29AntoineLatter
MonadPrompt1780.0MonadPrompt, implementation & examples (bsd3, control, library)2014-09-14CaleGibbard, JamesCook, RyanIngram
MonadRandom4752.0Random-number generation monad. (bsd3, control, library)2018-05-22BrentYorgey, CaleGibbard, EricKidd, LukePalmer, PaoloVeronelli, PatrickPalka
MonadRandomLazy230.0Lazy monad for psuedo random-number generation. (bsd3, control, library)2015-12-29NormanRamsey
MonadStack220.0Generalizing lift to monad stacks (bsd2, control, library)2015-07-13bhurt
Monatron180.0Monad transformer library with uniform liftings (bsd3, control, library)2010-05-12TomSchrijvers
Monatron-IO120.0MonadIO instances for the Monatron transformers. (bsd3, control, library)2012-04-26TobiasBrandt
Object210.0Object oriented programming for haskell using multiparameter typeclasses. (apache, control, data, library)2014-05-15yokto
PermuteEffects210.0Permutations of effectful computations (bsd3, control, library)2011-01-16MartijnVanSteenbergen
ProbabilityMonads120.0Probability distribution monads. (bsd3, control, library)2007-10-07EricKidd
ReplicateEffects180.0Composable replication schemes of applicative functors (bsd3, control, library)2012-12-27MartijnVanSteenbergen
RichConditional110.0Tiny library to replace classic if/else (control, library, mit)2015-02-16alexvieth
RoyalMonad260.0All hail the Royal Monad! (bsd3, control, library)2015-09-23AtzeVanDerPloeg
SciFlow650.0Scientific workflow management system (control, library, mit)2018-05-14kaizhang
THEff290.0TH implementation of effects. (bsd3, control, effect, library, th)2017-01-22kolodeznydiver
Tainted290.0Tainted type, and associated operations (bsd3, control, data, library, monads, trans)2015-05-27RossMeikleham
TotalMap322.0A total map datatype (control, library, mit)2018-11-14edwardwas
TreeT150.0Transformer for Data.Tree (control, library, monads, public-domain)2011-09-17RahulGopinath
TypeCompose4680.0Type composition classes & instances (bsd3, composition, control, library)2018-11-07ConalElliott
Workflow4482.0Workflow patterns over a monad for thread state logging & recovery (bsd3, control, library, workflow)2015-05-01AlbertoCorona
abstract-par1850.0Type classes generalizing the functionality of the 'monad-par' library. (bsd3, control, library, monads, parallelism)2013-11-06RyanNewton
acme-iot190.0IO monad transformer (control, library, mit)2016-08-13mniip
action-permutations250.0Execute a set of actions (e.g. parsers) in each possible order (bsd3, control, library)2014-04-11RossPaterson
allocated-processor250.0Functional combinators for monadic actions that require allocation and de-allocation (bsd3, control, library)2010-05-23NoamLewis
alternative-extra140.0Extra utilities for alternatives (bsd3, control, library)2017-02-20marcosdumay
alternators780.0Handy functions when using transformers. (bsd3, control, library)2018-07-02louispan
annihilator (deprecated in favor of boolean-like)130.0Semigroups with annihilators and utility functions (bsd3, control, deprecated, library)2016-04-05Shou
apart260.0Get all your structure and rip it apart. (bsd3, control, data, library, program)2018-09-28iokasimovmt
apecs2420.0Fast ECS framework for game programming (bsd3, control, data, game, library)2018-12-15jonascarpay
applicative-extras550.0Instances for Applicative (bsd3, control, library)2011-01-03ChrisEidhof
applicative-fail370.0Applicative functor and monad which collects all your fails (bsd3, control, library)2015-08-03AlekseyUymanov
applicative-splice120.0Write applicative programs in direct style (generalizes idiom brackets). (control, library, public-domain)2016-04-17AkioTakano
arity-generic-liftA440.0Provides an arity-generic version of the liftA2, liftA3... liftAn functions. (control, library, mit)2018-12-31oisdk
arrow-extras280.0Extra functions for Control.Arrow (bsd3, control, library)2017-03-15louispan
arrow-improve140.0Improved arrows. (control, library, mit)2014-02-18alynn
arrow-list1030.0List arrows for Haskell. (bsd3, control, library)2015-01-16AdamBergmark, ErikHesselink, SebastiaanVisser
arrowapply-utils200.0Utilities for working with ArrowApply instances more naturally (bsd3, control, library)2012-03-18AndrewMiller
arrows1470.0Arrow classes and transformers (bsd3, control, library)2018-03-31RossPaterson
artery180.0A simple, arrow-based reactive programming (bsd3, control, frp, library)2014-09-09FumiakiKinoshita
assert380.0Helpers for Control.Exception.assert (bsd3, control, library)2013-11-18LiyangHu
assert-failure1182.0Syntactic sugar improving 'assert' and 'error' (bsd3, contract, control, library)2017-09-15MikolajKonarski
async-refresh390.0Package implementing core logic for refreshing of expiring data. (bsd3, control, library)2018-03-20mtesseract
async-refresh-tokens430.0Package implementing core logic for refreshing of expiring access tokens (bsd3, control, library)2018-03-21mtesseract
asynchronous-exceptions (deprecated)240.0Distinguish between synchronous and asynchronous exceptions (control, deprecated, library, mit)2014-02-05RomanCheplyaka
atl490.0Arrow Transformer Library (bsd3, control, library)2016-09-28MatthewFarkasDyck
attoparsec-trans260.0Interleaved effects for attoparsec parsers (control, library, mit)2015-06-16srijs
auto2132.25Denotative, locally stateful programming DSL & platform (control, library, mit)2017-01-14jle
auto-update4280.0Efficiently run periodic, on-demand actions (control, library, mit)2016-05-09KazuYamamoto, MichaelSnoyman
backtracking-exceptions120.0A monad transformer for backtracking exceptions (bsd3, control, library)2014-08-22tapuu
backward-state200.0A state monad that runs the state in reverse through the computation (bsd3, control, library, monads)2013-01-14LukePalmer
barrier-monad170.0Implementation of barrier monad, can use custom front/back type (control, library, public-domain)2011-12-01AaronBlack
basic-prelude4682.0An enhanced core prelude; a common foundation for alternate preludes. (control, library, mit, prelude)2017-12-05DanBurton, MichaelSnoyman
billeksah-main120.0Leksah plugin base (control, program)2011-11-29JuergenNicklischFranken
billeksah-main-static130.0Leksah plugin base (control, program)2011-11-29JuergenNicklischFranken
billeksah-services120.0Leksah library (control, library)2011-11-29JuergenNicklischFranken
boolean-like410.0Logical combinatory operations dealing with datatypes representing booleans by their constructors. (bsd3, control, library)2016-09-22Shou
break220.0Break from a loop (bsd3, control, library)2017-04-07GabrielGonzalez
bytestring-progress790.0A library for tracking the consumption of a lazy ByteString (bsd3, control, library)2018-05-02AdamWick
bytestring-rematch110.0Rematch support for ByteString (control, library, mit)2013-05-19TomCrayford
capability150.0Extensional capabilities and deriving combinators (bsd3, control, library)2018-10-09aherrmann
capataz440.0OTP-like supervision trees in Haskell (concurrency, control, library, mit)2018-05-27RomanGonzalez
catch-fd340.0MonadThrow and MonadCatch, using functional dependencies (bsd3, control, library)2012-10-12AndySonnenburg
categories3690.0Categories (bsd3, control, library)2015-01-06EdwardKmett
category1230.0Categorical types and classes (bsd3, control, library, math)2018-12-29MatthewFarkasDyck
category-extras3520.0A meta-package documenting various packages inspired by category theory (bsd3, comonads, control, library, monads)2012-04-06DanDoel, DanielWagner, EdwardKmett, RussellOConnor
cflp1070.0Constraint Functional-Logic Programming in Haskell (bsd3, control, library)2009-06-04SebastianFischer
chr-core530.0Constraint Handling Rules (bsd3, control, library)2018-08-18AtzeDijkstra
classy-parallel180.0Fork of the monad-parallel package using monad-control (control, gpl, library)2012-07-31SamAnklesaria
classy-prelude6400.0A typeclass-based Prelude. (control, library, mit, prelude)2018-10-08GregWeber, MichaelSnoyman
classy-prelude-conduit3270.0classy-prelude together with conduit functions (control, library, mit, prelude)2018-10-08GregWeber, MichaelSnoyman
classy-prelude-yesod2390.0Provide a classy prelude including common Yesod functionality. (control, library, mit, yesod)2018-10-08GregWeber, MichaelSnoyman
cloud-haskell190.0The Cloud Haskell Application Platform (bsd3, control, library)2016-07-30FacundoDominguez, TimWatson
codecov-haskell270.0Codecov.io support for Haskell. (bsd3, control, library, program)2017-06-17killy971
coercible-utils290.0Utility functions for Coercible types. (bsd3, control, library)2018-06-29sjakobi, chessai
comonad12882.5Comonads (bsd3, comonads, control, library)2018-07-01EdwardKmett, EricMertens, ryanglscott
comonad-extras3840.0Exotic comonad transformers (bsd3, comonads, control, library)2013-11-25EdwardKmett
comonad-random (deprecated)190.0Comonadic interface for random values (control, deprecated, library)2009-07-21JakeMcArthur
comonad-transformers (deprecated in favor of comonad)8880.0This package has been merged into comonad 4.0 (bsd3, comonads, control, deprecated, library)2013-10-13EdwardKmett
comonads-fd (deprecated in favor of comonad)5410.0This package has been merged into comonad 4.0 (bsd3, comonads, control, deprecated, library)2013-10-13EdwardKmett
compactable1552.25A typeclass for structures which can be catMaybed, filtered, and partitioned. (bsd3, control, library)2018-06-28fresheyeball
composition-prelude7470.0Higher-order function combinators (bsd3, control, data, library)2018-11-27vmchale
computations100.0Advanced notions of computation (bsd3, control, library)2015-05-03WolfgangJeltsch
concatenative610.0A library for postfix control flow. (bsd3, control, library)2010-07-02SamAnklesaria
concurrent-machines780.0Concurrent networked stream transducers (bsd3, concurrency, control, library)2018-03-14AnthonyCowley
concurrent-state900.0MTL-like library using TVars (control, library, mit)2014-01-27JoelTaylor
cond1090.0Basic conditional and boolean operators with monadic variants. (bsd3, control, library, logic, monad)2014-11-23AdamCurtis
conkin210.0Tools for functors from Hask^k to Hask (control, library, public-domain)2017-10-26NoahEasterly
constrained-categories1520.0Constrained clones of the category-theory type classes, using ConstraintKinds. (control, gpl, library)2018-09-12leftaroundabout
constrained-monads370.0Typeclasses and instances for monads with constraints. (control, library, mit)2017-03-31oisdk
constrained-normal220.0Normalised Deep Embeddings for Constrained Type-Class Instances (bsd3, control, library)2014-06-09NeilSculthorpe
constraint-manip230.0Some conviencience type functions for manipulating constraints. (control, library, mit)2017-10-16clinton
constrictor1070.0strict versions of many things in base (control, library, mit)2018-05-31chessai
continue190.0Monads with suspension and arbitrary-spot reentry (bsd3, control, library)2013-04-21ErtugrulSoeylemez, esz
contravariant10812.25Contravariant functors (bsd3, control, data, library)2018-07-01EdwardKmett, EricMertens, ryanglscott
contravariant-extras890.0Extras for the "contravariant" package (control, library, mit)2018-02-28NikitaVolkov
control470.0Class of monad transformers which control operations can be lifted thru (bsd3, control, library)2018-08-19MatthewFarkasDyck
control-bool570.0Useful combinators for boolean expressions (bsd3, control, library)2013-12-08FumiakiKinoshita
control-dotdotdot180.0Haskell operator `g ... f = \x1 .. xn -> g (f x1 .. xn)`. (bsd3, control, library)2018-01-21erisco
control-dsl671.75An alternative to monads in do-notation (bsd3, control, dsl, effect, general, io, language, library, mutable-state, polymorphism)2018-10-18yangbo
control-event650.0Event scheduling system. (bsd3, control, library)2014-02-25ThomasDuBuisson
control-invariants130.0Invariants and contract monitoring (control, library, mit)2016-10-28SimonHudon, bandali
control-iso350.0A typeclass for type isomorphisms (bsd3, control, library)2018-06-04fresheyeball
control-monad-exception1330.0Explicitly typed, checked exceptions with stack traces (control, failure, library, mit, monads)2015-03-12PepeIborra
control-monad-exception-monadsfd300.0Monads-fd instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)2012-05-28PepeIborra
control-monad-exception-monadstf360.0Monads-tf instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)2012-05-28PepeIborra
control-monad-exception-mtl310.0MTL instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)2012-05-28PepeIborra
control-monad-failure (deprecated)620.0A class for monads which can fail with an error. (deprecated) (control, deprecated, failure, library, monads, public-domain)2012-01-18MichaelSnoyman, PepeIborra
control-monad-failure-mtl (deprecated)280.0A class for monads which can fail with an error for mtl 1 (deprecated) (control, deprecated, failure, library, monads, public-domain)2011-11-30MichaelSnoyman, PepeIborra
control-monad-free950.0Free monads and monad transformers (control, library, monads, public-domain)2018-10-06LukePalmer, PepeIborra
control-monad-loop290.0Simple monad transformer for imperative-style loops (bsd3, control, library)2012-07-08JoeyAdams
control-monad-omega1240.0A breadth-first list monad. (control, library, public-domain)2014-01-09LukePalmer
control-monad-queue330.0Reusable corecursive queues, via continuations. (bsd3, control, library)2015-12-19LeonSmith
control-timeout (deprecated)320.0Timeout handling (bsd3, control, deprecated, library)2008-02-01AdamLangley
contstuff (deprecated)920.0Fast, easy to use CPS-based monad transformers (bsd3, control, deprecated, library, monads)2011-05-19ErtugrulSoeylemez, esz
contstuff-monads-tf (deprecated)220.0ContStuff instances for monads-tf transformers (deprecated) (bsd3, control, deprecated, library, monads)2010-11-24ErtugrulSoeylemez, esz
contstuff-transformers (deprecated)160.0Deprecated interface between contstuff 0.7.0 and the transformers package (bsd3, control, deprecated, library, monads)2010-12-27ErtugrulSoeylemez, esz
conversion450.0Universal converter between values of different types (control, conversion, data, library, mit)2016-04-12NikitaVolkov
conversion-bytestring340.0"Conversion" instances for the "bytestring" library (control, conversion, data, library, mit)2016-04-12NikitaVolkov
conversion-case-insensitive120.0"Conversion" instances for the "case-insensitive" library (control, conversion, data, library, mit)2015-04-23NikitaVolkov
conversion-text370.0"Conversion" instances for the "text" library (control, conversion, data, library, mit)2016-04-12NikitaVolkov
corecursive-main230.0Write your main like it can call itself back. (bsd3, control, library, program)2018-08-19LucasDiCioccio
coroutine-object400.0Object-oriented programming realization using coroutine (bsd3, control, library)2016-02-05IanWooKim
coverage290.0Exhaustivity Checking Library (control, library, mit)2016-02-17NicolasDelPiano
cr200.0Code review tool (control, gpl, network, program, system)2012-12-03AlexandruScvortov
csp362.0Discrete constraint satisfaction problem (CSP) solver. (ai, constraints, control, failure, library, monads)2018-03-14AndreiBarbu
custom-prelude190.0An enhanced prelude, serving as a foundation for my projects (control, library)2012-10-02AnupamJain
daemons370.0Daemons in Haskell made fun and easy (control, gpl, library, network, program, system)2013-10-03AlexandruScvortov
data-fresh200.0Interface and functor transformers for fresh values (bsd3, control, library)2013-09-08StijnVanDrongelen
data-lens4890.0Used to be Haskell 98 Lenses (bsd3, comonads, control, library)2018-01-01EdwardKmett, RussellOConnor
data-lens-fd1560.0Lenses (bsd3, comonads, control, library)2016-07-17EdwardKmett, RussellOConnor
data-lens-ixset (deprecated in favor of data-store, tables, lens)290.0A Lens for IxSet (bsd3, comonads, control, data-structures, deprecated, library)2012-01-15DagOdenhall
decepticons110.0The categorical dual of transformers. (bsd3, control, library)2013-05-07JoeQuinn
deepcontrol760.0A library that provides deep-level programming style and(or) notation on Applicative and Monad (bsd3, control, library)2015-12-20KONISHI_Yohsuke
deepseq3852.0Deep evaluation of data structures (bsd3, control, library)2018-09-22AustinSeipp, DonaldStewart, HerbertValerioRiedel, IanLynagh, SimonMarlow
deepseq-bounded710.0Bounded deepseq, including support for generic deriving (bsd3, control, library)2015-02-04AndrewSeniuk
deepseq-generics2730.0GHC.Generics-based Control.DeepSeq.rnf implementation (bsd3, control, library)2016-01-03HerbertValerioRiedel
deepseq-magic240.0Deep evaluation of data structures without NFData (control, library, public-domain)2015-01-20EdwardYang
deepseq-th (deprecated in favor of deepseq-generics)300.0Template Haskell based deriver for optimised NFData instances (bsd3, control, deprecated, library)2012-10-13HerbertValerioRiedel
demarcate (deprecated in favor of free)130.0Demarcating transformed monad. (bsd3, control, deprecated, library)2013-09-23NickolayKudasov
despair220.0Despair (bsd3, control, library)2015-12-01Heather
disposable (deprecated in favor of glazier-react)1310.0Allows storing different resource-releasing actions together. (bsd3, control, deprecated, library)2018-07-02louispan
distributed-closure1652.0Serializable closures for distributed programming. (bsd3, control, library, program)2018-09-18AlexanderVershilov, AlpMestanogullari, FacundoDominguez, MathieuBoespflug
distributed-fork600.0Like 'forkIO', but uses remote machines instead of local threads. (bsd3, control, library)2018-06-15utdemir
distributed-fork-aws-lambda600.0AWS Lambda backend for distributed-fork. (bsd3, control, library)2018-06-15utdemir
distributed-process4842.5Cloud Haskell: Erlang-style concurrency in Haskell (bsd3, control, library)2018-06-12AlexanderVershilov, EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-async1280.0Cloud Haskell Async API (bsd3, control, library)2018-06-14AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-azure110.0Microsoft Azure backend for Cloud Haskell (bsd3, control, library)2012-11-05EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-client-server1530.0The Cloud Haskell Application Platform (bsd3, control, library)2018-06-14AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-execution540.0Execution Framework for The Cloud Haskell Application Platform (bsd3, control, library)2016-02-18AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-extras1320.0Cloud Haskell Extras (bsd3, control, library)2018-06-13AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-fsm110.0The Cloud Haskell implementation of Erlang/OTP gen_statem (bsd3, control, library)2017-03-26TimWatson
distributed-process-lifted280.0monad-control style typeclass and transformer instances for Process monad. (bsd3, cloud-haskell, control, library)2018-02-25jeremyjh
distributed-process-monad-control300.0Orphan instances for MonadBase and MonadBaseControl. (bsd3, control, library)2017-09-07jeremyjh
distributed-process-platform (deprecated in favor of distributed-process-extras, distributed-process-async, distributed-process-client-server, distributed-process-registry, distributed-process-supervisor, distributed-process-task, distributed-process-execution)230.0The Cloud Haskell Application Platform (bsd3, control, deprecated, library)2014-06-13AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-registry420.0Cloud Haskell Extended Process Registry (bsd3, control, library)2016-02-18AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-simplelocalnet2241.5Simple zero-configuration backend for Cloud Haskell (bsd3, control, library)2017-08-22AlexanderVershilov, EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-supervisor770.0Supervisors for The Cloud Haskell Application Platform (bsd3, control, library)2018-06-14AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-systest170.0Cloud Haskell Test Support (bsd3, cloud-haskell, control, library)2017-02-05TimWatson
distributed-process-task550.0Task Framework for The Cloud Haskell Application Platform (bsd3, cloud-haskell, control, library)2016-02-18AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-tests500.0Tests and test support tools for distributed-process. (bsd3, cloud-haskell, control, library)2017-10-05AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-zookeeper270.0A Zookeeper back-end for Cloud Haskell. (bsd3, cloud-haskell, control, library)2017-09-09jeremyjh
distributed-static2000.0Compositional, type-safe, polymorphic static values and closures (bsd3, control, library)2017-08-28EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
do-notation-dsl (deprecated in favor of control-dsl)240.0An alternative to monads (bsd3, control, deprecated, dsl, effect, general, io, language, library, mutable-state, polymorphism)2018-10-02yangbo
drinkery1130.0Boozy streaming library (bsd3, control, library)2018-07-18FumiakiKinoshita
edenmodules190.0Semi-explicit parallel programming library (bsd3, control, distributed-computing, eden, library, parallelism)2014-04-06MischaDieterle, JostBerthold, horstmeyer
effect-handlers1220.0A library for writing extensible algebraic effects and handlers. Similar to extensible-effects but with deep handlers. (control, library, mit)2016-04-28edofic, blambda
effect-monad242.0Embeds effect systems and program logics into Haskell using graded monads and parameterised monads (bsd3, control, library, monads)2018-01-24DominicOrchard
effects810.0Computational Effects (bsd3, control, library, monads)2017-01-29SjoerdVisscher
effects-parser110.0Parser Effect for the Control.Effects Library (bsd3, control, library, monads)2013-09-15JesseMcDonald
effin460.0A Typeable-free implementation of extensible effects (bsd3, control, effect, library)2017-08-03AnthonyVandikas
either10042.0Combinators for working with sums (bsd3, control, library, monads)2018-07-03EdwardKmett, ryanglscott, GeorgeWilson
elevator380.0Immediately lifts to a desired level (bsd3, control, library)2015-04-01FumiakiKinoshita
elision310.0Arrows with holes. (bsd2, control, library, program)2016-02-18jacrough
enclosed-exceptions3702.0Catching all exceptions from within an enclosed computation (control, library, mit)2018-07-11MichaelSnoyman, jcristovao
error-context340.0Provides API for enriching errors with contexts (bsd3, control, error-handling, library)2018-04-10mtesseract
error-continuations80.0Error Continuations (control, library, public-domain)2015-01-05echatav
error-list170.0A useful type for collecting error messages. (control, library, mit)2015-06-18thinkpad20
errorcall-eq-instance (deprecated in favor of base-orphans)310.0An orphan Eq instance for ErrorCall (control, deprecated, library, mit)2015-04-22SimonHengel
errors4192.25Simplified error-handling (bsd3, control, error-handling, library)2018-05-11GabrielGonzalez
errors-ext1350.0`bracket`-like functions for `ExceptT` over `IO` monad. (control, error-handling, library)2018-07-17warlock
eternal550.0everything breaking the Fairbairn threshold (bsd3, control, library)2016-07-24Heather
ether (deprecated)622.25Monad transformers and classes (bsd3, control, deprecated, library)2017-06-03int_index
event-driven110.0library for event driven programming (bsd3, control, library)2010-07-16YoshikuniJujo
event-handlers100.0Event handlers (control, data, library, public-domain)2008-12-15JamesCook
event-monad220.0Event-graph simulation monad transformer (control, library, public-domain)2010-01-11JamesCook
event-transformer (deprecated)110.0Initial project template from stack (bsd3, control, deprecated, library, program)2016-10-10SchellScivally
exception-monads-fd (deprecated in favor of exception-mtl)140.0Exception monad transformer instances for monads-fd classes. (bsd3, control, deprecated, error-handling, failure, library, monad)2010-10-06GeoffreyMainland
exception-monads-tf1070.0Exception monad transformer instances for monads-tf classes. (bsd3, control, error-handling, failure, library, monad)2017-05-03GeoffreyMainland
exception-mtl1880.0Exception monad transformer instances for mtl classes. (bsd3, control, error-handling, failure, library, monad)2016-05-10GeoffreyMainland
exception-transformers1370.0Type classes and monads for unchecked extensible exceptions. (bsd3, control, error-handling, failure, library, monad)2018-05-05GeoffreyMainland
exceptional1950.0Essentially the Maybe type with error messages. (bsd2, control, library)2015-07-22pharpend
exceptions8312.0Extensible optionally-pure exceptions (bsd3, control, exceptions, library, monad)2018-03-11EdwardKmett, ryanglscott
exhaustive420.0Compile time checks that a computation considers producing data through all possible constructors (bsd3, control, library)2018-10-23OliverCharles
exitcode150.0Monad transformer for exit codes (bsd3, control, library)2018-06-14qfpl
explicit-exception1310.0Exceptions which are explicit in the type signature. (bsd3, control, library)2018-02-16HenningThielemann
explicit-sharing590.0Explicit Sharing of Monadic Effects (control, library, monads, public-domain)2011-06-30SebastianFischer
extensible-effects7232.25An Alternative to Monad Transformers (control, effect, library, mit)2019-01-03BenFoppa, RomanCheplyaka, shergill
extensible-effects-concurrent1370.0Message passing concurrency as extensible-effect (bsd3, concurrency, control, effect, library, program)2018-12-18SvenHeyll
extensible-exceptions3070.0Extensible exceptions (bsd3, control, library)2012-02-02IanLynagh
failable1470.0A 'Failable' error monad class to unify failure across monads that can fail (bsd3, control, exceptions, library, monad)2019-01-21erick
failure (deprecated in favor of exceptions)2050.0A simple type class for success/failure computations. (deprecated) (bsd3, control, deprecated, failure, library, monads)2014-06-08MichaelSnoyman, Michael_Smith
feature-flags400.0A simple library for dynamically enabling and disabling functionality. (control, library, mit)2015-04-02IanDuncan
fold-debounce1750.0Fold multiple events that happen in a given period of time. (bsd3, control, library)2018-09-23debugito
foldl4162.5Composable, streaming, and efficient left folds (bsd3, control, library)2018-10-03GabrielGonzalez
foldl-incremental212.0incremental folds (control, library, mit, statistics)2015-02-23tonyday
foldl-transduce782.0Transducers for foldl folds. (bsd3, control, library)2018-05-12DanielDiazCarrete
foldl-transduce-attoparsec170.0Attoparsec and foldl-transduce integration. (bsd3, control, library)2016-02-12DanielDiazCarrete
for-free100.0Functor, Monad, MonadPlus, etc for free (control, library, public-domain)2012-07-09AaronBlack
forbidden-fruit180.0A library accelerates imperative style programming. (bsd3, control, library)2015-02-24minpou
forest730.0Tree and Forest types (control, library, mpl)2018-08-02ShaneOBrien
free13612.5Monads for free (bsd3, control, library, monads)2018-07-03EdwardKmett, EricMertens, JohnWiegley, ryanglscott
free-algebras540.0Free algebras in Haskell. (algebra, control, library, monads, mpl)2018-12-08coot
free-category250.0Free category (algebra, category, control, library, monads, mpl)2018-11-03coot
free-er140.0An extensible effects library (bsd3, control, effect, library, program)2017-10-10OmerAgacan
free-operational230.0Operational Applicative, Alternative, Monad and MonadPlus from free types. (bsd3, control, library)2013-08-08LuisCasillas
free-vl760.0van Laarhoven encoded Free Monad with Extensible Effects (bsd3, control, library, monads, program)2016-02-10aaronlevin
freer1232.25Implementation of the Freer Monad (bsd3, control, library, program)2016-11-25alleledev
freer-effects222.0Implementation of effect system for Haskell. (bsd3, control, library, program)2017-04-16MatejKollar, PeterTrsko, TomasJanousek
freer-simple1090.0Implementation of a friendly effect system for Haskell. (bsd3, control, library, program)2018-11-15lexi_lambda
freer-simple-catching220.0Checked runtime exceptions with freer-simple (control, library, mit)2018-11-12benweitzman
freer-simple-http230.0Make HTTP requests with freer-simple! (control, http, library, mit, web)2018-11-12benweitzman
freer-simple-profiling230.0Automatic profling of freer-simple programs (benchmarking, control, library, mit, profiling)2018-11-12benweitzman
freer-simple-random230.0Random number generators using freer-simple (control, library, mit, random)2018-11-12benweitzman
freer-simple-time250.0freer-simple interface to IO based time functions (control, library, mit, time)2018-11-12benweitzman
from-sum862.0Canonical fromMaybeM and fromEitherM functions. (bsd3, control, library)2016-11-17cdepillabout
frpnow1202.5Principled practical FRP (bsd3, control, library)2015-08-25AtzeVanDerPloeg
frpnow-gloss170.0Program awesome stuff with Gloss and frpnow! (bsd3, control, library)2015-07-14AtzeVanDerPloeg
frpnow-gtk150.0Program GUIs with GTK and frpnow! (bsd3, control, library)2015-07-14AtzeVanDerPloeg
frpnow-vty160.0Program terminal applications with vty and frpnow! (control, gpl, library, program)2018-03-19JaroReinders
fsharp (deprecated)200.0some F# operators, high priority pipes (bsd3, control, deprecated, library)2014-02-18Heather
full-sessions310.0a monad for protocol-typed network programming (bsd3, control, library, network)2012-01-23KeigoImai
function-combine150.0Combining functions (bsd3, control, library)2011-09-23IainAlexander
functor130.0Functors (bsd3, control, library, math)2017-11-16MatthewFarkasDyck
functor-apply (deprecated in favor of semigroupoids)2630.0This package has been subsumed by semigroupoids (bsd3, control, deprecated, library)2011-01-30EdwardKmett
functors100.0(.:) and friends, syntax for Functor and Applicative. (bsd3, control, library)2010-11-28AristidBreitkreuz
funflow1000.0Workflows with arrows (control, library, mit, program)2018-11-13nclarke
fused-effects892.25A fast, flexible, fused effect system. (bsd3, control, library)2018-12-03robrix
future-resource150.0realtime resource handling with manual concurrency (control, lgpl, library)2015-04-22capsjac
gang-of-threads280.0Non-deterministic parallelism with bags (bsd3, control, library, parallelism)2014-07-22bholst
garlic-bread220.0A monad transformer for keeping track of where you've come from. (bsd3, control, library)2018-03-17parsonsmatt
gas200.0Limit how many steps a program may take. (bsd3, control, library)2018-08-14rightfold
general-prelude (deprecated)160.0Prelude replacement using generalized type classes where possible (bsd3, control, data, deprecated, library)2012-12-18JohnWiegley
generator260.0Python-generators notation for creation of monadic lists (bsd3, control, library)2015-05-28YairChuchem
generators (deprecated)200.0Actually useful monadic random value generators. (bsd3, control, deprecated, library)2010-06-25LiamOConnorDavis
generic-deepseq250.0Generic deep evaluation of data structures (bsd3, control, generics, library)2012-02-28MaximeHenrion
ghc-call-stack-extras220.0Extra utilities for HasCallStack (bsd3, control, library)2018-03-14dfeuer
gooey130.0Graphical user interfaces that are renderable, change over time and eventually produce a value. (control, library, mit)2015-10-06SchellScivally
graphted980.0Graph indexed monads. (bsd3, comonads, control, library, monads)2017-05-09AaronFriel
groupoids (deprecated in favor of semigroupoids)712.0This package has been absorbed into semigroupoids 4.0 (bsd3, categories, control, deprecated, library)2013-10-13EdwardKmett
hasim180.0Process-Based Discrete Event Simulation library (bsd3, control, library)2008-12-29JochemBerndsen
hask190.0Categories (bsd3, control, library)2014-11-10EdwardKmett
haskell-cnc260.0Library for parallel programming in the Intel Concurrent Collections paradigm. (bsd3, control, library, parallelism, program)2011-08-12RyanNewton
hcron130.0A simple job scheduler, which just runs some IO action at a given time. (bsd3, control, library, scheduling)2012-08-23TimoHuebel
hdph100.0Haskell distributed parallel Haskell (bsd3, control, distributed-computing, library, monads, parallelism, program)2013-02-07PatrickMaier
hdph-closure110.0Explicit closures in Haskell distributed parallel Haskell (bsd3, control, distributed-computing, library)2013-02-07PatrickMaier
hmk430.0A make alternative based on Plan9's mk. (control, development, distribution, library, program)2016-01-11MathieuBoespflug
hoist-error480.0Some convenience facilities for hoisting errors into a monad (control, library, mit)2018-06-15JonSterling, schalmers, qfpl
hpc2080.0Code Coverage Library for Haskell (bsd3, control, library)2016-05-04AustinSeipp, HerbertValerioRiedel, IanLynagh
hpc-coveralls3540.0Coveralls.io support for Haskell. (bsd3, control, library, program)2017-05-13killy971
hreader530.0Generalization of MonadReader and ReaderT using hset (bsd3, control, library)2016-12-12AlekseyUymanov
hs-di232.0Dependency Injection library for Haskell (bsd3, control, dependency-injection, development, library, program, template-haskell, testing)2016-09-26Wizek
hsPID510.0PID control loop (control, lgpl, library)2018-11-25jlamothe
hspec-monad-control100.0Orphan instances of MonadBase and MonadBaseControl for SpecM (bsd3, control, library)2015-05-21bmjames
hyperfunctions190.0Hyperfunctions (bsd3, categories, control, library)2015-06-21EdwardKmett
if280.0(?) and (?>) conditional operator (bsd3, control, library)2016-11-17winterland
ifcxt142.25put if statements within type constraints (bsd3, control, library)2016-08-03MikeIzbicki
implicit-logging140.0A logging framework built around implicit parameters. (control, lgpl, library)2016-09-11rev_null
index-core320.0Indexed Types (bsd3, control, indexed, library)2016-06-12GabrielGonzalez
indexed430.0Haskell98 indexed functors, monads, comonads (bsd3, control, library)2016-09-17ReinerPope, typedrat
indexed-extras260.0Indexed functors, monads and comonads that require extensions to Haskell98 (bsd3, control, library)2016-07-08ReinerPope, typedrat
indexed-free310.0indexed monads for free (bsd3, control, library, monad)2013-11-27FumiakiKinoshita
indextype980.0A series of type families and constraints for "indexable" types. (bsd3, control, library)2017-10-19clinton
inject-function210.0Monadic functions with injected parameters. (control, gpl, library)2013-09-13DimitriSabadie
instance-control820.0Controls how the compiler searches for instances using type families. (bsd3, control, library)2017-09-27lazac
interchangeable (deprecated)200.0A type class for interchangeable data. (control, deprecated, library, mit)2015-01-18arowM
interleave110.0Combinators for supporting interleaving of different behaviours (bsd3, control, library)2011-01-07NeilBrown
interruptible180.0Monad transformers that can be run and resumed later, conserving their context. (bsd3, control, library)2016-06-08marcosdumay
interspersed300.0An abstraction over interspersing monadic actions (control, library, mit)2016-06-02NikitaVolkov
invariant4390.0Haskell98 invariant functors (bsd2, control, data, library)2018-07-15NicolasFrisby, ryanglscott
invertible620.0bidirectional arrows, bijective functions, and invariant functors (bsd3, composition, control, data, library)2018-04-15DylanSimon
invertible-hlist100.0invertible functions and instances for HList (bsd3, composition, control, data, library)2017-03-07DylanSimon
io-choice770.0Choice for IO and lifted IO (bsd3, control, library)2018-12-11KazuYamamoto
io-reactive120.0An API for generating TIMBER style reactive objects. (bsd3, control, library, program, reactivity)2008-09-23AndyGill
io-region400.0Exception safe resource management with dynamic regions (bsd3, control, library)2015-04-24YurasShumovich
iotransaction110.0Supports the automatic undoing of IO operations when an exception is thrown. (control, library, mit)2013-05-04DylanShearer
ixmonad (deprecated in favor of effect-monad, type-level-sets)1060.0Embeds effect systems into Haskell using parameteric effect monads (bsd3, control, deprecated, library, monads)2014-05-15DominicOrchard
json-tracer270.0A polymorphic, type-safe, json-structured tracing library (bsd3, control, library)2018-05-11autotaker
lambda-devs140.0a Paralell-DEVS implementaion based on distributed-process (bsd3, control, library, program, simulation)2013-11-24alios
lawless-concurrent-machines220.0Concurrent networked stream transducers (bsd3, concurrency, control, library)2017-10-02misandrist
lax240.0Lax arrows (bsd3, control, library)2012-02-07WolfgangJeltsch
layers130.0Modular type class machinery for monad transformer stacks. (bsd3, control, library)2013-03-14ShaneOBrien
lazy150.0Explicit laziness for Haskell (control, library, mit)2018-04-28NikitaVolkov
lazyio1590.0Run IO actions lazily while respecting their order (bsd3, control, library, monads)2016-12-14HenningThielemann
lens-misc300.0Miscellaneous lens utilities. (bsd3, control, library)2018-07-02louispan
lens-tutorial272.5Tutorial for the lens library (bsd3, control, library)2017-07-31GabrielGonzalez
lensref290.0References which can be joined and on which lenses can be applied (bsd3, control, data, library)2014-05-18PeterDivianszky
level-monad390.0Non-Determinism Monad for Level-Wise Search (control, library, monads, public-domain)2009-06-22SebastianFischer
lifted-base5520.0lifted IO operations from the base library (bsd3, control, library)2018-03-14BasVanDijk
lifted-base-tf200.0lifted IO operations from the base library (bsd3, control, library)2018-08-19MatthewFarkasDyck
list-t4702.0ListT done right (control, data-structures, library, mit, streaming)2019-01-19NikitaVolkov
list-transformer342.0List monad transformer (bsd3, control, library)2018-03-30GabrielGonzalez
local-search260.0Generalised local search within Haskell, for applications in combinatorial optimisation. (control, library, local-search, optimisation)2013-07-18RichardSenington
log-effect460.0An extensible log effect using extensible-effects (control, effect, library, logging, mit)2018-10-02ibotty, sickmind
log-effect-syslog140.0Syslog functions for log-effect (bsd3, control, effect, library, logging, syslog)2018-05-10sickmind
logicst90.0Backtracking mutable references in the ST and IO monads (bsd3, control, library)2013-04-17AndySonnenburg
logict3630.0A backtracking logic-programming monad. (bsd3, control, library)2014-02-09DanDoel
loop1230.0Fast loops (for when GHC can't optimize forM_) (control, library, mit)2015-09-03NiklasHambuechen
loop-effin170.0control-monad-loop port for effin (bsd3, control, library)2014-10-07HiromiIshii
loop-while100.0A monad transformer supporting various styles of while loop (bsd3, control, library)2010-01-11NeilBrown
loops690.0Fast imperative-style loops (bsd3, control, library)2014-06-13ThomasTuegel
machinecell690.0Arrow based stream transducers (bsd3, control, frp, library, reactivity)2018-04-17HidenoriAzuma
machines3232.5Networked stream transducers (bsd3, control, enumerator, library)2018-07-03EdwardKmett, EricMertens, ryanglscott
machines-bytestring210.0ByteString support for machines (bsd3, control, library, machines)2017-06-07zclod
managed1500.0A monad for managed values (bsd3, control, library)2018-02-14GabrielGonzalez
map-classes120.0A set of classes and instances for working with key/value mappings. (bsd3, control, library)2018-03-31clinton
mealstrom332.0Manipulate FSMs and store them in PostgreSQL. (control, database, library, mit)2018-11-16amx
mech110.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
mechs100.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
memo-ptr110.0Pointer equality memoization (control, library, mit)2015-05-31edofic
memoization-utils140.0Utilities for memoizing functions (control, library, mit)2015-11-06yamadapc
meta-par110.0Provides the monad-par interface, but based on modular scheduler "mix-ins". (bsd3, control, library, monads, parallelism)2012-05-04RyanNewton
micro-recursion-schemes180.0Simple recursion schemes (bsd3, control, library, recursion)2018-05-14
midair772.0Hot-swappable FRP (concurrency, control, frp, gpl, interaction, library, music, reactive, reactivity, user-interfaces)2018-11-10TomMurphy
minioperational (deprecated in favor of monad-skeleton)1760.0fast and simple operational monad (bsd3, control, deprecated, library)2015-01-26FumiakiKinoshita
mix-arrows230.0Mixing effects of one arrow into another one (bsd3, control, library)2012-02-06MiguelMitrofanov
mmorph5172.5Monad morphisms (bsd3, control, library)2018-03-22GabrielGonzalez
mmtl100.0Modular Monad transformer library (bsd3, control, library)2008-09-30MauroJaskelioff
mmtl-base90.0MonadBase type-class for mmtl (bsd3, control, library)2011-12-13MatthewFarkasDyck
modular-prelude (deprecated)150.0A new Prelude featuring first class modules (control, deprecated, library, mit)2012-08-18DanBurton
modular-prelude-classy (deprecated)100.0Reifying ClassyPrelude a la ModularPrelude (control, deprecated, library, mit)2012-08-18DanBurton
monad-abort-fd390.0A better error monad transformer (bsd3, control, library)2018-04-01MikhailVorozhtsov
monad-atom250.0Monadically convert object to unique integers and back. (bsd3, control, library)2012-03-16GrzegorzChrupala
monad-atom-simple150.0Monadically map objects to unique ints. (bsd3, control, library)2012-02-23GrzegorzChrupala
monad-batcher120.0An applicative monad that batches commands for later more efficient execution (bsd3, control, library)2017-04-29BasVanDijk
monad-bool (deprecated)190.0This package has been removed. (bsd3, control, deprecated, library)2013-01-28JohnWiegley
monad-classes422.0more flexible mtl (control, library, mit)2018-05-07MatthewFarkasDyck
monad-codec710.0Monadic conversion between complex data structures and unique integers (bsd3, control, library)2012-10-09JakubWaszczuk
monad-connect100.0Transformer for TCP connection with TLS and SOCKS support (control, library, monad, network, public-domain)2016-03-16akrasner
monad-control6470.0Lift control operations, like exception catching, through monad transformers (bsd3, control, library)2018-02-26BasVanDijk
monad-control-aligned360.0Just like monad-control, except less efficient, and the monadic state terms are all * -> * (bsd3, control, library)2018-03-26athanclark
monad-coroutine600.0Coroutine monad transformer for suspending and resuming monadic computations (concurrency, control, library, monads)2018-02-25MarioBlazevic
monad-dijkstra750.0A monad transformer for weighted graph searches (bsd3, control, library, monads)2019-01-22ecramer
monad-exception (deprecated in favor of layers)100.0Exstensible monadic exceptions (control, deprecated, library, public-domain)2012-03-01ShaneOBrien
monad-extras780.0Extra utility functions for working with monads (bsd3, control, library)2017-02-10JohnWiegley
monad-finally250.0Guard monadic computations with cleanup actions (bsd3, control, library)2018-04-01MikhailVorozhtsov
monad-fork (deprecated in favor of layers)110.0Type class for monads which support a fork operation. (control, deprecated, library, public-domain)2012-02-21ShaneOBrien
monad-hash190.0Monad transformer for incremental hashing (control, cryptography, hash, library, monad, public-domain)2016-05-30akrasner
monad-io-adapter140.0Adapters between MonadIO and MonadBase IO. (control, library)2017-11-21lexi_lambda
monad-journal4050.0Pure logger typeclass and monad transformer (bsd3, control, library)2017-11-25DimitriSabadie
monad-levels160.0Specific levels of monad transformers (control, library, mit)2015-02-03IvanMiljenovic
monad-lgbt180.0Monad transformers for combining local and global state. (bsd2, control, library)2016-07-23MichalGajda
monad-loops3752.25Monadic loops (control, library, public-domain)2015-06-19JamesCook
monad-loops-stm110.0Monadic loops for STM (control, library, public-domain)2013-06-09JamesCook
monad-markov200.0Markov process monad (control, library, mit)2018-06-29arran
monad-memo1772.0Memoization monad transformer (bsd3, control, library, monad)2018-08-31EduardSergeev
monad-mersenne-random182.5An efficient random generator monad, based on the Mersenne Twister (bsd3, control, library)2010-07-14DonaldStewart
monad-open90.0Open recursion for when you need it (control, library, mit)2015-03-22JonSterling
monad-ox410.0Monad for observation extraction (bsd3, control, library, natural-language-processing)2013-04-06JakubWaszczuk
monad-par3472.25A library for parallel programming based on a monad (bsd3, control, library, monads, parallelism)2016-06-16RyanNewton, SimonMarlow
monad-par-extras1970.0Combinators and extra features for Par monads (bsd3, control, library, monads, parallelism)2013-07-12RyanNewton
monad-parallel1030.0Parallel execution of monadic computations (bsd3, control, library, monads)2018-02-25MarioBlazevic
monad-parallel-progressbar130.0Parallel execution of monadic computations with a progress bar (control, library, mit, monads, system, user-interfaces)2015-04-05mnacamura
monad-param (deprecated in favor of indexed)550.0Parameterized monads (bsd3, control, deprecated, library)2011-01-15DominiqueDevriese, EdwardKmett
monad-peel520.0Lift control operations like exception catching through monad transformers (bsd3, control, library)2017-03-02AndersKaseorg, SergeyAlirzaev
monad-products1492.0Monad products (bsd3, control, library, monads)2016-01-17EdwardKmett
monad-ran320.0Fast monads and monad transformers (bsd3, control, library, monads)2009-05-06EdwardKmett
monad-resumption400.0Resumption and reactive resumption monads for Haskell. (bsd3, control, library)2018-02-17AdamProcter, IanGraves
monad-skeleton630.0Monads of program skeleta (bsd3, control, library, monads)2017-08-02FumiakiKinoshita
monad-st530.0Provides a MonadST class (bsd3, control, library, monads)2017-06-26EdwardKmett
monad-state160.0Utility library for monads, particularly those involving state. (bsd3, control, data, library, monads)2014-12-02ByronJohnson
monad-ste192.25ST monad with efficient explicit errors (bsd2, control, library)2016-05-04CarterSchonwald
monad-stm180.0MonadSTM class analogous to MonadIO (bsd3, control, library)2013-04-07MiguelMitrofanov
monad-supply450.0Stateful supply monad. (control, data, library, mit, monads)2018-04-03GeoffHulette
monad-task330.0A monad transformer that turns event processing into co-routine programming. (bsd3, control, library)2018-01-04PaulLiu
monad-time1000.0Type class for monads which carry the notion of the current time. (bsd3, control, library)2018-04-09GracjanPolak, MikhailGlushenkov, arybczak, jonathanjouty_scrive
monad-timing160.0Monad transformer for recording timing events (control, library, mit)2016-06-13pikajude
monad-tx130.0A transactional state monad. (bsd3, control, library, monads)2009-04-06MattMorrow
monad-unlift (deprecated in favor of unliftio-core, unliftio, rio)1120.0Typeclasses for representing monad transformer unlifting (control, deprecated, library, mit)2016-05-03MichaelSnoyman
monad-unlift-ref302.0Typeclasses for representing monad transformer unlifting (control, library, mit)2017-11-21MichaelSnoyman
monad-wrap180.0Wrap functions such as catch around different monads (bsd3, control, library)2013-04-27DavidMazieres
monadLib-compose170.0Arrow-like monad composition for monadLib. (bsd3, control, library, monads)2010-10-20AristidBreitkreuz
monadbi (deprecated)110.0Extract underlying monads from monad transformers (control, deprecated, library)2011-09-22AnupamJain
monadcryptorandom1000.0A monad for using CryptoRandomGen (bsd3, control, cryptography, library)2018-04-11ThomasDuBuisson
monadfibre (deprecated)190.0Monadic functions which provide Choice and Parallelism. (control, deprecated, library)2011-09-22AnupamJain
monadiccp790.0Constraint Programming (bsd3, control, library)2018-05-09MaikRiechert, PieterWuille, TomSchrijvers
monadiccp-gecode590.0Constraint Programming (bsd3, control, library)2018-05-30JanTikovsky
monadio-unwrappable160.0Reversibly allow monad transformer stacks to run in IO (bsd3, control, library)2012-06-18AndrewMiller
monadlist480.0Monadic versions of list functions (bsd3, control, library)2011-10-08ThomasEding
monadloc1030.0A class for monads which can keep a monadic call trace (control, library, monads, public-domain)2013-06-06PepeIborra
monadloc-pp220.0A preprocessor for generating monadic call traces (control, monads, program, public-domain)2014-10-17PepeIborra
monadplus780.0Haskell98 partial maps and filters over MonadPlus. (bsd3, control, library)2013-07-23HansHoglund
monads-fd (deprecated in favor of mtl)500.0Monad classes, using functional dependencies (bsd3, control, deprecated, library)2010-11-07RossPaterson
monads-tf1970.0Monad classes, using type families (bsd3, control, library)2016-06-08RossPaterson
more-extensible-effects302.0Initial project template from stack (bsd3, control, library)2017-01-29qzchenwl
morphisms750.0It's all about functions (control, data, library, mit)2019-01-04iokasimovmt
morphisms-functors2630.0Functors, theirs compositions and transformations (control, data, library, mit)2019-01-15iokasimovmt
morphisms-functors-inventory260.0Inventory is state and store (control, data, library, mit)2019-01-12iokasimovmt
morphisms-objects1640.0Algebraic structures (control, data, library, mit)2019-01-08iokasimovmt
motor230.0Type-safe effectful state machines in Haskell (control, library, mpl, program)2018-05-19owickstrom
motor-diagrams150.0Generate state diagrams from Motor FSM typeclasses (control, library, mpl)2018-05-19owickstrom
motor-reflection160.0Reflect on Motor FSM typeclasses to obtain runtime representations (control, library, mpl)2018-05-19owickstrom
mtl7262.75Monad classes, using functional dependencies (bsd3, control, library)2018-02-24DonaldStewart, EdwardKmett, HerbertValerioRiedel, IanLynagh, RossPaterson, ryanglscott
mtl-evil-instances (deprecated in favor of layers)110.0Instances for the mtl classes for all monad transformers. (control, deprecated, library, public-domain)2012-02-29ShaneOBrien
mtl-extras (deprecated in favor of transformers-lift)120.0Higher order versions of MTL classes (bsd3, control, deprecated, library)2016-08-12int_index
mtl-tf (deprecated)230.0Monad Transformer Library with Type Families (bsd3, control, deprecated, library)2018-01-23MatthewFarkasDyck, TrevorElliott
mtl-unleashed360.0MTL classes without the functional dependency (bsd3, control, library)2015-11-11DavidFox
mtlx280.0Monad transformer library with type indexes, providing 'free' copies. (bsd3, control, library)2012-10-15MarkSnyder
multipass440.0Folding data with multiple named passes (bsd3, control, library)2013-01-27EdwardKmett
multistate1160.0like mtl's ReaderT / WriterT / StateT, but more than one contained value/type. (bsd3, control, library)2018-10-03lspitzner
mvc1880.0Model-view-controller (bsd3, concurrency, control, library)2018-08-19GabrielGonzalez
mvc-updates210.0Concurrent and combinable updates (bsd3, concurrency, control, library)2014-09-23GabrielGonzalez
mzv200.0Implementation of the "Monads, Zippers and Views" (Schrijvers and Oliveira, ICFP'11) (bsd3, control, library)2014-04-16IsmaelFigueroa
named492.5Named parameters (keyword arguments) for Haskell (bsd3, control, library)2018-07-13Artyom, int_index
natural1190.0Natural number (bsd3, control, library)2019-01-11qfpl
natural-transformation1442.0A natural transformation package. (bsd3, control, library)2016-11-15AndrewFarmer, AndyGill, NeilSculthorpe, ryanglscott
needle150.0ASCII-fied arrow notation (control, library, mit)2014-09-28ScrambledEggs
newtype1160.0A typeclass and set of functions for working with newtypes. (bsd3, control, library)2011-04-20DariusJahandarie, jcristovao
newtype-deriving250.0Instance derivers for newtype wrappers (control, library, mit, template-haskell)2016-05-02NikitaVolkov
newtype-generics3222.0A typeclass and set of functions for working with newtypes (bsd3, control, library)2018-03-23jcristovao, sjakobi
newtype-th810.0A template haskell deriver to create Control.Newtype instances. (bsd3, control, library, template-haskell)2012-07-19MichaelSloan
newtyper120.0Extra functions for the Control.Newtype typeclass (bsd3, control, library)2012-05-15DylanJust
nondeterminism292.0A monad and monad transformer for nondeterministic computations. (ai, constraints, control, failure, library, monads)2015-10-19AndreiBarbu
nqe570.0Concurrency library in the style of Erlang/OTP (control, library, public-domain)2018-10-09xenog
objective970.0Composable objects (bsd3, control, library)2017-12-20FumiakiKinoshita
observable470.0Continuation patterns (bsd3, control, library)2018-12-10iokasimovmt
open-signals190.0A mechanism similar to checked exceptions that integrates with MTL and transformer stacks (control, library, mit)2016-04-17darwin226
operational2852.25Implementation of difficult monads made easy with operational semantics. (bsd3, control, library, monads)2016-11-21HeinrichApfelmus
operational-class740.0MonadProgram typeclass for the operational package (control, library, mit)2015-07-12srijs
overload310.0Finite overloading (control, library, mit)2018-03-08darwin226
parallel5792.0Parallel programming library (bsd3, control, library, parallelism)2018-07-13AustinSeipp, HerbertValerioRiedel, IanLynagh, SimonMarlow
parallel-tree-search420.0Parallel Tree Search (concurrency, control, library, public-domain)2009-04-09SebastianFischer
parameterized730.0Parameterized/indexed monoids and monads using only a single parameter type variable. (bsd3, control, library)2017-12-17louispan
partial330.0A nullary type class for partial functions (control, library, mit)2017-11-28PhilFreeman
partial-isomorphisms760.0Partial isomorphisms. (bsd3, control, library)2017-05-12TillmannRendel, schernichkin
partial-lens (deprecated in favor of data-lens)130.0Haskell 98 Partial Lenses (comonads, control, deprecated, library, mit)2011-12-21RussellOConnor
perm290.0permutation Applicative and Monad with many mtl instances (bsd3, control, library)2012-11-11AndySonnenburg
phantom-state1060.0Phantom State Transformer. Like State Monad, but without values. (bsd3, control, library)2016-05-31DanielDiaz
pipe-enumerator220.0A bidirectional bridge between pipes and iteratees (bsd3, control, library, pipes)2015-07-07patrykz
pipes7982.75Compositional pipelines (bsd3, control, library, pipes)2018-03-12GabrielGonzalez
pipes-async580.0A higher-level interface to using concurrency with pipes (bsd3, control, library)2018-07-23JohnWiegley
pipes-attoparsec-streaming (deprecated)120.0Streaming parsing in the pipes-core framework with Attoparsec. (bsd3, control, deprecated, library, program)2012-06-20MartinGrabmueller
pipes-break292.0Pipes to group by any delimiter (such as lines with carriage returns) (bsd3, control, library, pipes)2017-03-16mindreader
pipes-bytestring2340.0ByteString support for pipes (bsd3, control, library, pipes)2017-07-14GabrielGonzalez
pipes-category340.0Allows instances for Category, Arrow and ArrowChoice for Pipes. (bsd3, control, library, pipes)2017-10-08louispan
pipes-cellular100.0Pipes-based combinators for cellular data processing (bsd3, control, library, pipes)2015-07-07patrykz
pipes-cellular-csv100.0Efficient pipes-based cellular CSV codec (bsd3, control, library, pipes)2015-07-07patrykz
pipes-concurrency1222.0Concurrency for the pipes ecosystem (bsd3, concurrency, control, library, pipes)2018-09-24GabrielGonzalez
pipes-conduit100.0Conduit adapters (bsd3, control, enumerator, library)2012-03-10PaoloCapriotti
pipes-core (deprecated in favor of pipes)140.0Compositional pipelines (bsd3, control, deprecated, enumerator, library)2012-04-09PaoloCapriotti
pipes-errors200.0Integration between pipes and errors (bsd3, control, error-handling, library, monad, pipes)2015-05-21jdnavarro
pipes-extra180.0Various basic utilities for Pipes. (bsd3, control, enumerator, library)2012-06-09PaoloCapriotti
pipes-extras2640.0Extra utilities for pipes (bsd3, control, library, pipes)2018-07-04GabrielGonzalez
pipes-fluid1190.0Reactively combines Producers so that a value is yielded as soon as possible. (bsd3, control, frp, library, pipes)2018-06-01louispan
pipes-group2360.0Group streams into substreams (bsd3, control, library, pipes)2018-07-04GabrielGonzalez
pipes-io110.0Stateful IO streams based on pipes (apache, control, library, pipes)2016-08-26yinguanhao
pipes-lines (deprecated in favor of pipes-break)370.0Pipes for grouping by lines with carriage returns. (bsd3, control, deprecated, library, pipes)2017-03-16mindreader
pipes-misc660.0Miscellaneous utilities for pipes, required by glazier-tutorial (bsd3, control, library, pipes)2018-05-22louispan
pipes-parse2382.0Parsing infrastructure for the pipes ecosystem (bsd3, control, library, parsing, pipes)2016-12-03GabrielGonzalez
pipes-random750.0Producers for handling randomness. (bsd3, control, library)2017-11-26fosskers
pipes-rt230.0A few pipes to control the timing of yields (bsd3, control, library, pipes, program)2015-01-21imalsogreg
pipes-safe1790.0Safety for the pipes ecosystem (bsd3, control, error-handling, library, pipes)2018-10-03GabrielGonzalez
pipes-transduce640.0Interfacing pipes with foldl folds. (bsd3, control, library)2018-05-12DanielDiazCarrete
pipes-vector920.0Various proxies for streaming data into vectors (bsd3, control, library)2015-05-29BenGamari
pipes-zeromq4170.0Pipes integration for ZeroMQ messaging (bsd3, control, library, network, pipes)2017-04-20peddie
plan-applicative590.0Applicative/Arrow for resource estimation and progress tracking. (bsd3, control, library)2018-08-18DanielDiazCarrete
poly-cont130.0Poly-kinded continuations (bsd3, control, library)2018-03-14dfeuer
ports140.0The Haskell Ports Library (control, library)2007-07-14DonaldStewart
prelude-plus260.0Prelude for rest of us (bsd3, control, data, system)2009-10-14YusakuHashimoto
product-profunctors1870.0product-profunctors (bsd3, category, control, library)2018-04-07tomjaguarpaw
profunctor-extras3520.0This package has been absorbed into profunctors 4.0 (bsd3, categories, control, library)2013-10-13EdwardKmett
profunctor-monad180.0Monadic bidirectional programming (control, library, mit)2018-12-07lyxia
profunctors11442.5Profunctors (bsd3, categories, control, library)2018-07-03EdwardKmett, ryanglscott
progress-reporting162.0Functionality for reporting function progress. (control, lgpl, library)2017-09-27JeroenBransen
prologue990.0Better, more general Prelude exporting common utilities. (apache, control, library)2018-12-18danilo2, iamrecursion
prompt640.0Monad (and transformer) for deferred-effect pure prompt-response queries (control, library, mit)2016-05-26jle
prospect220.0Explore continuations with trepidation (bsd3, control, library)2018-07-10isovector
quantum-arrow212.0An embedding of quantum computation as a Haskell arrow (control, library)2009-01-09LukePalmer
quiver662.0Quiver finite stream processing library (bsd3, control, library)2015-12-08patrykz
quiver-binary470.0Binary serialisation support for Quivers (control, library, mit)2016-11-26IvanMiljenovic
quiver-bytestring200.0Quiver combinators for bytestring streaming (bsd3, control, library)2015-09-13patrykz
quiver-cell160.0Quiver combinators for cellular data processing (bsd3, control, library)2015-08-31patrykz
quiver-csv170.0Quiver combinators for cellular CSV data processing (bsd3, control, library)2015-08-04patrykz
quiver-enumerator110.0Bridge between Quiver and Iteratee paradigms (bsd3, control, library)2015-08-03patrykz
quiver-groups160.0Group and chunk values within a Quiver (control, library, mit)2016-07-19IvanMiljenovic
quiver-http130.0Adapter to stream over HTTP(s) with quiver (bsd3, control, http, library)2015-08-18ChristianMarie
quiver-instances570.0Extra instances for Quiver (control, library, mit)2016-11-26IvanMiljenovic
quiver-interleave570.0Interleave values from multiple Quivers (control, library, mit)2016-11-26IvanMiljenovic
quiver-sort450.0Sort the values in a quiver (control, library, mit)2016-11-26IvanMiljenovic
random-eff130.0A simple random generator library for extensible-effects (bsd3, control, effect, library)2014-04-01HiromiIshii
random-effin170.0A simple random generator library for effin (bsd3, control, effect, library)2014-10-09HiromiIshii
rank2classes1640.0standard type constructor class hierarchy, only with methods of rank 2 types (bsd3, control, data, generics, library)2018-11-08MarioBlazevic
rate-limit640.0A basic library for rate-limiting IO actions. (bsd3, control, library)2018-10-20AdamWick, eyevanmalicesun
reactive-haskell (deprecated)100.0minimal fork of io-reactive (bsd3, control, deprecated, library, reactivity)2014-09-23Heather
reactive-io (deprecated)140.0IO-oriented FRP library (control, deprecated, library, mit)2013-07-06RomanCheplyaka
reasonable-lens161.25Lens implementation. It is more small but adequately. (control, library, mit)2015-04-15outoftune
reasonable-operational130.0Just size Operational Monad implementation. (control, library, mit)2015-02-13outoftune
record890.0Anonymous records (control, data-structures, library, mit, records)2016-10-24NikitaVolkov
recursion2600.0A recursion schemes library for GHC. (bsd3, control, library, recursion)2019-01-05vmchale
recursion-schemes2132.5Generalized bananas, lenses and barbed wire (bsd3, control, library, recursion)2018-12-15EdwardKmett, EricMertens, gelisam, ryanglscott
recursion-schemes-ext760.0Amateur addenda to recursion-schemes (bsd3, control, library)2018-05-08vmchale
ref-fd1192.0A type class for monads with references using functional dependencies. (bsd3, control, library)2016-05-10GeoffreyMainland
ref-mtl150.0A type class for monads with references compatible with the mtl2 library. (bsd3, control, library)2011-04-05GeoffreyMainland
ref-tf1490.0A type class for monads with references using type families. (bsd3, control, library)2016-07-10GeoffreyMainland
reference150.0A class for references in Haskell (control, data, library, mit)2010-09-06MaciejPiechotka
references2080.0Selectors for reading and updating data. (bsd3, control, library)2017-11-28lazac
regions540.0Provides the region monad for safely opening and working with scarce resources. (bsd3, control, library, monadic-regions)2011-09-23BasVanDijk
regions-monadsfd (deprecated in favor of regions-mtl)300.0Monads-fd instances for the RegionT monad transformer (bsd3, control, deprecated, library, monadic-regions)2010-09-01BasVanDijk
regions-monadstf470.0Monads-tf instances for the RegionT monad transformer (bsd3, control, library, monadic-regions)2011-09-23BasVanDijk
regions-mtl210.0mtl instances for the RegionT monad transformer (bsd3, control, library, monadic-regions)2011-09-23BasVanDijk
registry1960.0data structure for assembling components (control, library, mit)2019-01-22etorreborre
rematch290.0A simple api for matchers (control, library, mit)2013-05-19TomCrayford
rematch-text160.0`rematch` matchers for Data.Text (control, library, mit)2013-05-19TomCrayford
remote-monad160.0An parametrizable Remote Monad, and parametrizable Applicative Functor (bsd3, control, library)2016-02-08AndyGill
representable-profunctors (deprecated in favor of profunctors)2240.0This package has been absorbed into profunctor-extras. (bsd3, categories, control, deprecated, library)2013-01-07EdwardKmett
request-monad190.0A transformer for generic requests (control, library, mit)2014-06-27nahiluhmot
resource-effect130.0A port of the package 'resourcet' for extensible effects. (bsd3, control, effect, library)2014-01-05ClarkGaebel
resource-pool-monad100.0A monadic interface for resource-pool (control, library, mit)2015-10-24srijs
resource-simple120.0Allocate resources which are guaranteed to be released. (bsd3, control, library)2012-03-02ShaneOBrien
resumable-exceptions120.0A monad transformer for resumable exceptions (control, error-handling, failure, library, monads, reactivity)2010-09-20NicolasFrisby
retry3342.5Retry combinators for monadic actions that may fail (bsd3, control, library)2018-08-27MichaelXavier, OzgunAtaman
rev-state510.0Reverse State monad transformer (bsd3, control, library)2016-02-01DanBurton
rex1270.0A quasi-quoter for typeful results of regex captures. (bsd3, control, library)2016-06-03MichaelSloan
rio3580.0A standard library for Haskell (control, library, mit)2018-12-30MichaelSnoyman
rio-orphans510.0Orphan instances for the RIO type in the rio package (control, library, mit)2018-06-19MichaelSnoyman
rmonad450.0Restricted monad library (bsd3, control, library)2013-12-23GaneshSittampalam
safe-buffer-monad190.0A monadic buffer resilient to exceptions (bsd3, control, library)2018-06-17dcastro
safe-exceptions2662.25Safe, consistent, and easy exception handling (control, library, mit)2018-01-18FrancescoMazzoli, MichaelSnoyman
safe-exceptions-checked302.0Safe, checked exceptions (bsd3, control, library)2017-01-28mitchellwrosen
scc550.0Streaming component combinators (combinators, concurrency, control, library, program)2016-06-19MarioBlazevic
schonfinkeling90.0Transformation of n-ary functions to unary functions (bsd3, control, library)2011-10-03DenisDefreyne
semi-iso350.0Weakened partial isomorphisms, reversible computations. (control, data, library, mit)2014-12-12pawel834
semigroupoid-extras2490.0Semigroupoids that depend on PolyKinds (bsd3, control, library)2015-05-15EdwardKmett
semigroupoids20182.5Semigroupoids: Category sans id (bsd3, comonads, control, library)2019-01-04EdwardKmett, EricMertens, ryanglscott
sessions670.0Session Types for Haskell (control, library)2008-07-18MatthewSackman
sessiontypes180.0Session types library (control, gpl, library, program)2018-01-13ferdinandvw
sessiontypes-distributed150.0Session types distributed (control, gpl, library)2018-01-13ferdinandvw
shade990.0A control structure used to combine heterogenous types with delayed effects. (bsd3, control, library)2017-05-20fredefox
shared-fields200.0a tiny library for using shared lens fields (bsd3, control, library)2015-07-20Intolerable
shortcircuit110.0Short-circuit values and expressions. (bsd3, control, data, library)2010-10-14AristidBreitkreuz
simple-effects3892.0A simple effect system that integrates with MTL (bsd3, control, effects, library)2018-11-19darwin226
simple-observer100.0The Observer pattern (bsd3, control, library)2009-11-11AndyGimblett
simple-sessions180.0A simple implementation of session types (bsd3, control, library)2013-10-10JesseTov
sink (deprecated)110.0An alternative to lazy I/O that doesn't conflate execution with evaluation (control, data, deprecated, library, mit, system)2011-08-27JakeMcArthur
skulk210.0Eclectic collection of utility functions (control, library, mit)2016-06-05geekyfox
sousit120.0Source/Sink/Transform: An alternative to lazy IO and iteratees. (bsd3, control, library)2012-09-16MarioSiegenthaler
spawn170.0Tiny library for concurrent computations (bsd3, concurrency, concurrent, control, library)2011-10-09KeeganMcAllister
speculation-transformers290.0Merged into 'speculation'. Use that instead. (bsd3, control, library)2011-01-19EdwardKmett
stack-hpc-coveralls330.0Initial project template from stack (control, library, program)2016-09-01rubik
state-bag110.0Monad transformers for holding bags of state. (bsd3, control, library)2016-07-22RobinKay
state-plus250.0MonadPlus for StateT (bsd3, control, library)2017-04-16BorisSukholitko
stateWriter1600.0A faster variant of the RWS monad transformers. (bsd3, control, library)2018-01-10SimonMarechal
statestack970.0Simple State-like monad transformer with saveable and restorable state (bsd3, control, library)2016-01-18BrentYorgey, RyanYates, jeffreyrosenbluth, bergey
static-closure120.0Serialisable static pointers to functions (bsd3, control, library)2018-01-17clinton
stm-supply340.0STM wrapper around Control.Concurrent.Supply. (bsd3, control, library)2016-11-19jmc41493
stopwatch400.0A simple stopwatch utility (bsd3, control, library)2018-03-14debugito
stream-monad340.0Simple, Fair and Terminating Backtracking Monad (bsd3, control, library, monads)2012-09-10SebastianFischer
streaming-eversion430.0Translate pull-based stream folds into push-based iteratees. (bsd3, control, library)2018-05-12DanielDiazCarrete
streamly1472.25Beautiful Streaming, Concurrent and Reactive Composition (bsd3, concurrency, control, library, reactivity, streaming)2018-12-31harendra
streamproc1130.0Stream Processer Arrow (bsd3, control, library)2013-04-05PeterSimons
streams4332.0Various Haskell 2010 stream comonads (bsd3, comonads, control, library)2016-06-15EdwardKmett, ryanglscott
strict-concurrency770.0Strict concurrency abstractions (bsd3, control, library)2018-10-09DonaldStewart, YitzGale
strict-identity80.0Strict Identity Monad, handy for writing fast code! (bsd3, control, library)2014-01-12CarterSchonwald
strict-writer (deprecated in favor of writer-cps-mtl)270.0A stricter writer, which uses StateT in order to avoid space leaks. (control, deprecated, library, mit)2017-02-10oisdk
strictly90.0Combinators for strictifying functions (bsd3, control, library)2013-08-14DanBurton
stt200.0A monad transformer version of the ST monad (control, library, mit)2016-11-06mckeankylej
sub-state100.0Get the total, put a single element (bsd3, control, library)2015-09-03athanclark
subhask162.0Type safe interface for programming in subcategories of Hask (algebra, bsd3, categories, control, library)2015-09-01MikeIzbicki
successors310.0An applicative functor to manage successors (control, library, mit)2017-12-31JoachimBreitner
supervisor140.0Control an internal monad execution for trace generation, backtrakcking, testing and other purposes (bsd3, control, library)2013-12-31AlbertoCorona
synchronous-channels132.0Synchronous communication channels (bsd3, concurrency, control, library)2015-07-07JesseTov
tagged-exception-core180.0Reflect exceptions using phantom types. (bsd3, control, error-handling, exceptions, failure, library, monad, monads, phantom-types)2016-02-02PeterTrsko
tagged-identity550.0Trivial monad transformer that allows identical monad stacks have different types (bsd3, control, library)2017-05-23mrkkrp
tagshare420.0TagShare - explicit sharing with tags (bsd3, control, library)2012-08-01JonasDuregard
takahashi210.0create slide for presentation. (control, library, mit)2015-07-14outoftune
tardis592.0Bidirectional state monad transformer (bsd3, control, library)2016-04-25DanBurton
these2712.25An either-or-both data type & a generalized 'zip with padding' typeclass (bsd3, control, data, library)2018-09-18JohnWiegley, phadej, cmccann
threads-pool90.0A library to operate with pool of haskell's IO threads (bsd3, control, library)2010-11-08IlyaPortnov
time-machine180.0A library to mock the current time. (bsd3, control, library)2017-11-26y_taka_23
time-out150.0Timers, timeouts, alarms, monadic wrappers (control, library, monad, public-domain, time, timeout)2016-05-30akrasner
time-warp322.0Distributed systems execution emulation (control, library, mit, network)2017-03-18jagajaga, gromak, volhovm, martoon
timeout160.0Generalized sleep and timeout functions (concurrency, control, library, mit)2014-08-02FedorGogolev
timeout-control110.0Updatable timeouts as a Monad transformer (bsd3, concurrency, control, library)2015-08-31NathanHowell
timers-tick400.0tick based timers (bsd3, control, library)2018-03-15fffaaa
total280.0Exhaustive pattern matching using lenses, traversals, and prisms (bsd3, control, library)2017-02-20GabrielGonzalez
trace320.0A monad transformer for tracing provenience of errors (control, library, mit)2015-04-15JonSterling
transactional-events110.0Transactional events, based on Concurrent ML semantics (bsd3, control, library)2008-10-10RyanIngram
transformers5452.5Concrete functor and monad transformers (bsd3, control, library)2017-10-04RossPaterson
transformers-abort1040.0Error and short-circuit monad transformers (bsd3, control, library)2016-12-09MikhailVorozhtsov
transformers-base5650.0Lift computations from the bottom of a transformer stack (bsd3, control, library)2018-03-31MikhailVorozhtsov
transformers-bifunctors472.0Bifunctors over monad transformers. (bsd3, control, functors, library)2017-07-16JacobStanley
transformers-compose110.0Arrow-like / category-like composition for transformers. (bsd3, control, library, monads)2010-11-01AristidBreitkreuz
transformers-continue112.0Control flow data type and monad transformer. (bsd3, control, library)2017-03-16nhibberd
transformers-convert90.0Sensible conversions between some of the monad transformers (bsd3, control, library)2014-05-30jcristovao
transformers-eff170.0An approach to managing composable effects, ala mtl/transformers/extensible-effects/Eff (bsd3, control, library)2018-03-22OliverCharles
transformers-free (deprecated in favor of free)200.0Free monad transformers (bsd3, control, deprecated, library)2012-11-01GabrielGonzalez
transformers-lift872.0Ad-hoc type classes for lifting (bsd3, control, library)2017-05-11int_index
transformers-runnable120.0A unified interface for the run operation of monad transformers (bsd3, control, library)2012-10-12JanBessai
transient1212.5composing programs with multithreading, events and distributed computing (concurrency, control, library, mit)2018-04-15AlbertoCorona, geraldus
transient-universe890.0Remote execution and map-reduce: distributed computing for Transient (control, distributed-computing, library, mit, program)2018-04-15AlbertoCorona, geraldus
tree-monad310.0Non-Determinism Monad for Tree Search (bsd3, control, library, monads)2010-10-09SebastianFischer
trivia120.0The trivial monad and comonad (bsd3, control, library)2014-03-02FumiakiKinoshita
tubes570.0Write stream processing computations with side effects in a series of tubes. (control, gpl, library, streaming)2016-08-16gatlin
tuple-lenses180.0Stock FieldN combos and generators (bsd3, control, library)2013-03-28JonathanFischoff
tweak140.0A library for incremental computing (bsd3, control, library)2013-10-05JonathanFischoff
type-operators430.0Various type-level operators (bsd3, control, library)2016-10-25Shou
uberlast200.0Generate overloaded lenses from plain data declaration (bsd3, control, library)2014-11-27FumiakiKinoshita
unexceptionalio1160.0IO without any non-error, synchronous exceptions (control, library)2018-05-08StephenWeber
unexceptionalio-trans90.0A wrapper around UnexceptionalIO using monad transformers (control, library)2018-05-08StephenWeber
unliftio4812.5The MonadUnliftIO typeclass for unlifting monads to IO (batteries included) (control, library, mit)2018-12-30MichaelSnoyman
unliftio-core4000.0The MonadUnliftIO typeclass for unlifting monads to IO (control, library, mit)2018-08-28MichaelSnoyman
unliftio-pool630.0Data.Pool generalized to MonadUnliftIO. (bsd3, control, data, database, library, network)2018-05-28BardurArantsson
unordered-containers-rematch110.0Rematch support for unordered containers (control, library, mit)2013-05-20TomCrayford
unpack-funcs240.0Monad transformers that mirror worker-wrapper transformations. (bsd3, control, library)2013-04-18LouisWasserman
unsafe940.0Unified interface to unsafe functions (bsd3, control, library)2013-04-21HenningThielemann
unsequential260.0An extension removing the sequentiality from monads (control, library, mit)2017-03-20NikitaVolkov
uu-interleaved970.0An interleaving combinator for use with applicative style implementations. (applicative, control, library, mit, parsing, text)2018-08-06DoaitseSwierstra
validationt632.0Straightforward validation monad. (bsd3, control, library)2018-07-10typeable
var-monad590.0The VarMonad typeclass, generalizing types of references. (apache, control, library)2017-08-29chris_martin
variables120.0Monads with variables, without deep magic (control, library, mit)2014-08-18alynn
varying932.0FRP through value streams and monadic splines. (control, frp, library, mit, program)2018-10-04SchellScivally
vector-strategies240.0A parallel evaluation strategy for boxed vectors (bsd3, control, library)2012-11-13ThomasDuBuisson
views (deprecated in favor of definitive-base)100.0Views allow you to run a State monad on part of a state. (bsd3, control, deprecated, library, monad)2013-03-15MarcCoiffier
vinyl-utils1340.0Utilities for vinyl (bsd3, control, library)2017-12-28mjmrotek
watchdog590.0Simple control structure to re-try an action with exponential backoff (bsd3, control, library)2017-06-06JanVornberger
weighted220.0Writer monad which uses semiring constraint (control, library, mit)2017-02-13oisdk
weighted-search140.0A weighted nondeterministic search monad (bsd3, control, library)2013-03-13LukePalmer
wires232.0Functional reactive programming library (bsd3, control, frp, library)2018-04-15esz
with200.0Simple open product type (bsd3, control, data, library)2018-09-16iokasimovmt
withdependencies300.0Run computations that depend on one or more elements in a stream. (control, gpl, library)2018-02-02SimonMarechal
wl-pprint-extras3810.0A free monad based on the Wadler/Leijen pretty printer (bsd3, control, library, monads, text)2015-06-09EdwardKmett, NathanielFilardo
wl-pprint-terminfo4810.0A color pretty printer with terminfo support (bsd3, control, library, monads, text)2016-06-22EdwardKmett, NathanielFilardo
writer-cps-exceptions180.0Control.Monad.Catch instances for the stricter CPS WriterT and RWST (bsd3, control, library)2018-10-29minad
writer-cps-full280.0WriteT and RWST monad transformers (Reexport with all dependencies) (bsd3, control, library)2017-01-19minad, louispan
writer-cps-lens360.0Lens instances for the stricter CPS WriterT and RWST (bsd3, control, library)2017-03-06minad, louispan
writer-cps-monads-tf330.0MonadWriter orphan instances for writer-cps-transformers (bsd3, control, library)2017-01-16minad
writer-cps-morph340.0MFunctor instance for CPS style WriterT and RWST (bsd3, control, library)2017-03-06minad, louispan
writer-cps-mtl1500.0MonadWriter orphan instances for writer-cps-transformers (bsd3, control, library)2018-08-13minad
writer-cps-transformers1500.0WriteT and RWST monad transformers (bsd3, control, library)2018-08-13minad
xml-html-conduit-lens1330.0Optics for xml-conduit and html-conduit (bsd3, control, library)2018-06-14MatveyAksenov
zoom-refs320.0Zoom (~ Functor) and pairing (~ Applicative) for mutable references. (bsd3, control, library)2016-05-23mjmrotek