dev-haskell / transformers

Concrete functor and monad transformers

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Haskell 98 part of a monad transformer library, inspired by the paper \"Functional Programming with Overloading and Higher-Order Polymorphism\", by Mark P Jones, in /Advanced School of Functional Programming/, 1995 (<>). This part contains the monad transformer class, the concrete monad transformers, operations and liftings. It can be used on its own in Haskell 98 code, or with the monad classes in the @monads-fd@ or @monads-tf@ packages, which automatically lift operations introduced by monad transformers through other transformers.

v0.5.2.0 :: 0/ :: gentoo

~amd64 ~amd64-linux ~x86 ~x86-linux ~x86-macos ~x86-solaris
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v0.4.3.0 :: 0/ :: gentoo

~amd64 ~amd64-linux ~ppc ~ppc-macos ~ppc64 ~x86 ~x86-linux ~x86-macos ~x86-solaris
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v0.4.2.0 :: 0/ :: gentoo

~amd64 ~amd64-linux ~ppc ~ppc-macos ~ppc64 ~x86 ~x86-linux ~x86-macos ~x86-solaris
USE flags
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v0.4.1.0 :: 0/ :: gentoo

~amd64 ~amd64-linux ~ppc ~ppc-macos ~ppc64 ~x86 ~x86-linux ~x86-macos ~x86-solaris
USE flags
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v0.3.0.0-r1 :: 0/ :: gentoo

~amd64 ~amd64-linux ~ppc ~ppc-macos ~ppc64 ~x86 ~x86-linux ~x86-macos ~x86-solaris
USE flags
doc hscolour profile


Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
Include coloured haskell sources to generated documentation (dev-haskell/hscolour)
Add support for software performance analysis (will likely vary from ebuild to ebuild)

dev-haskell / cabal : A framework for packaging Haskell software

dev-haskell / haddock : A documentation-generation tool for Haskell libraries

dev-haskell / hscolour : Colourise Haskell code

dev-lang / ghc : The Glasgow Haskell Compiler

dev-lang / ghc : The Glasgow Haskell Compiler

app-emacs / ghc-mod : Happy Haskell Programming

app-emulation / ganeti : Ganeti is a virtual server management software tool

dev-haskell / adjunctions : Adjunctions and representable functors

dev-haskell / aeson : Fast JSON parsing and encoding

dev-haskell / alut : A binding for the OpenAL Utility Toolkit

dev-haskell / ascii-progress : A simple progress bar for the console

dev-haskell / attoparsec : Fast combinator parsing for bytestrings and text

dev-haskell / attoparsec-conduit : Consume attoparsec parsers via conduit. (deprecated)

dev-haskell / authenticate : Authentication methods for Haskell web applications

dev-haskell / aws : Amazon Web Services (AWS) for Haskell

dev-haskell / basic-prelude : An enhanced core prelude; a common foundation for alternate preludes

dev-haskell / bifunctors : Haskell 98 bifunctors, bifoldables and bitraversables

dev-haskell / blaze-builder-conduit : Convert streams of builders to streams of bytestrings. (deprecated)

dev-haskell / blaze-builder-enumerator : Enumeratees for the incremental conversion of builders to bytestrings

dev-haskell / bytes : Sharing code for serialization between binary and cereal

dev-haskell / c2hs : C->Haskell FFI tool that gives some cross-language type safety

dev-haskell / cabal-helper : Simple interface to some of Cabal's configuration state used by ghc-mod

dev-haskell / chaselev-deque : Chase & Lev work-stealing lock-free double-ended queues (deques)

dev-haskell / chell : A simple and intuitive library for automated testing

dev-haskell / chunked-data : Typeclasses for dealing with various chunked data representations

dev-haskell / classy-prelude : A typeclass-based Prelude

dev-haskell / clientsession : Securely store session data in a client-side cookie

dev-haskell / cmdargs : Command line argument processing

dev-haskell / cmdlib : a library for command line parsing & online help

dev-haskell / comonad : Haskell 98 compatible comonads

dev-haskell / comonad-transformers : This package has been merged into comonad 4.0

dev-haskell / comonads-fd : This package has been merged into comonad 4.0

dev-haskell / concurrent-output : Ungarble output from several threads or commands

dev-haskell / conduit : Streaming data processing library

dev-haskell / conduit-extra : Batteries included conduit: adapters for common libraries

dev-haskell / constraints : Constraint manipulation

dev-haskell / contravariant : Contravariant functors

dev-haskell / control-monad-loop : Simple monad transformer for imperative-style loops

dev-haskell / criterion : Robust, reliable performance measurement and analysis

dev-haskell / crypto-api : A generic interface for cryptographic operations

dev-haskell / crypto-conduit : Conduit interface for cryptographic operations (from crypto-api)

dev-haskell / cryptohash-conduit : cryptohash conduit

dev-haskell / data-accessor : Utilities for accessing and manipulating fields of records

dev-haskell / dav : RFC 4918 WebDAV support

dev-haskell / dbus : A client library for the D-Bus IPC system

dev-haskell / derive : A program and library to derive instances for data types

dev-haskell / distributive : Distributive functors -- Dual to Traversable

dev-haskell / djinn-ghc : Generate Haskell code from a type. Bridge from Djinn to GHC API

dev-haskell / doctest : Test interactive Haskell examples

dev-haskell / either : An either monad transformer

dev-haskell / ekg : Remote monitoring of processes

dev-haskell / enclosed-exceptions : Catching all exceptions from within an enclosed computation

dev-haskell / enumerator : Reliable, high-performance processing with left-fold enumerators

dev-haskell / equivalence : Maintaining an equivalence relation implemented as union-find using STT

dev-haskell / errors : Simplified error-handling

dev-haskell / esqueleto : Type-safe EDSL for SQL queries on persistent backends

dev-haskell / exceptions : Extensible optionally-pure exceptions

dev-haskell / failure : A simple type class for success/failure computations. (deprecated)

dev-haskell / fclabels : First class accessor labels implemented as lenses

dev-haskell / fgl : Martin Erwig's Functional Graph Library

dev-haskell / file-location : common functions that show file location information

dev-haskell / foldl : Composable, streaming, and efficient left folds

dev-haskell / free : Monads for free

dev-haskell / glob : Globbing library

dev-haskell / gluraw : A raw binding for the OpenGL graphics system

dev-haskell / gnutls : Bindings for GNU libgnutls

dev-haskell / graphviz : Bindings to Graphviz for graph visualisation

dev-haskell / gsasl : Bindings for GNU libgsasl

dev-haskell / gtk3 : Binding to the Gtk+ 3 graphical user interface library

dev-haskell / haddock-api : A documentation-generation tool for Haskell libraries

dev-haskell / haddock-library : Library exposing some functionality of Haddock

dev-haskell / happstack-server : Web related tools and services

dev-haskell / haskeline : A command-line interface for user input, written in Haskell

dev-haskell / haskell-platform : The Haskell Platform

dev-haskell / hastache : Haskell implementation of Mustache templates

dev-haskell / hexpat : XML parser/formatter based on expat

dev-haskell / hlint : Source code suggestions

dev-haskell / hspec : A Testing Framework for Haskell

dev-haskell / hspec-core : A Testing Framework for Haskell

dev-haskell / hspec-meta : A version of Hspec which is used to test Hspec itself

dev-haskell / html-conduit : Parse HTML documents using xml-conduit datatypes

dev-haskell / http-client : An HTTP client engine

dev-haskell / http-client-conduit : Frontend support for using http-client with conduit (deprecated)

dev-haskell / http-client-multipart : Generate multipart uploads for http-client. (deprecated)

dev-haskell / http-common : Common types for HTTP clients and servers

dev-haskell / http-conduit : HTTP client package with conduit interface and HTTPS support

dev-haskell / http-reverse-proxy : Reverse proxy HTTP requests, either over raw sockets or with WAI

dev-haskell / juicypixels : Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and others)

dev-haskell / kan-extensions : Kan extensions, lifts, forms of the Yoneda lemma, and (co)density (co)monads

dev-haskell / keys : Keyed functors and containers

dev-haskell / lens : Lenses, Folds and Traversals

dev-haskell / lens-family : Lens Families

dev-haskell / lens-family-core : Haskell 98 Lens Families

dev-haskell / lens-simple : simplified import of elementary lens-family combinators

dev-haskell / lifted-base : lifted IO operations from the base library

dev-haskell / linear : Linear Algebra

dev-haskell / list : List monad transformer and class

dev-haskell / logging-facade : Simple logging abstraction that allows multiple backends

dev-haskell / logict-state : Library for logic programming based on haskell package logict

dev-haskell / mmorph : Monad morphisms

dev-haskell / monad-control : Lift control operations, like exception catching, through monad transformers

dev-haskell / monad-journal : Pure logger typeclass and monad transformer

dev-haskell / monad-logger : A class of monads which can log messages

dev-haskell / monad-par-extras : Combinators and extra features for Par monads

dev-haskell / monad-unlift : Typeclasses for representing monad transformer unlifting

dev-haskell / monadcatchio-transformers : Monad-transformer compatible version of the Control.Exception module

dev-haskell / monadrandom : Random-number generation monad

dev-haskell / monads-tf : Monad classes, using type families

dev-haskell / mono-traversable : Type classes for mapping, folding, and traversing monomorphic containers

dev-haskell / mtl : Monad classes, using functional dependencies

dev-haskell / network-conduit : Stream socket data using conduits. (deprecated)

dev-haskell / network-protocol-xmpp : Client library for the XMPP protocol

dev-haskell / nonce : Generate cryptographic nonces

dev-haskell / objectname : Explicitly handled object names

dev-haskell / openal : A binding to the OpenAL cross-platform 3D audio API

dev-haskell / opengl : A binding for the OpenGL graphics system

dev-haskell / openglraw : A raw binding for the OpenGL graphics system

dev-haskell / options : A powerful and easy-to-use command-line option parser

dev-haskell / optparse-applicative : Utilities and combinators for parsing command line options

dev-haskell / persistent : Type-safe, multi-backend data serialization

dev-haskell / persistent-sqlite : Backend for the persistent library using sqlite3

dev-haskell / persistent-template : Type-safe, non-relational, multi-backend persistence

dev-haskell / pipes : Compositional pipelines

dev-haskell / pointed : Pointed and copointed data

dev-haskell / primitive : Primitive memory-related operations

dev-haskell / profunctor-extras : This package has been absorbed into profunctors 4.0

dev-haskell / profunctors : Haskell 98 Profunctors

dev-haskell / project-template : Specify Haskell project templates and generate files

dev-haskell / quickcheck : Automatic testing of Haskell programs

dev-haskell / reducers : Semigroups, specialized containers and a general map/reduce framework

dev-haskell / regex-applicative : Regex-based parsing with applicative interface

dev-haskell / resource-pool : A high-performance striped resource pooling implementation

dev-haskell / resourcet : Deterministic allocation and freeing of scarce resources

dev-haskell / semigroupoids : Semigroupoids: Category sans id

dev-haskell / semigroups : Anything that associates

dev-haskell / shakespeare : A toolkit for making compile-time interpolated templates

dev-haskell / shakespeare-css : Stick your haskell variables into css at compile time. (deprecated)

dev-haskell / shelly : shell-like (systems) programming in Haskell

dev-haskell / snap-server : A web server for the Snap Framework

dev-haskell / statevar : State variables

dev-haskell / streaming-commons : Common lower-level functions needed by various streaming data libraries

dev-haskell / system-fileio : Consistent filesystem interaction across GHC versions (deprecated)

dev-haskell / tagstream-conduit : streamlined html tag parser

dev-haskell / tasty-ant-xml : Render tasty output to XML for Jenkins

dev-haskell / tasty-rerun : Run tests by filtering the tests depending on the result of previous runs

dev-haskell / temporary : Portable temporary file and directory support for Windows and Unix

dev-haskell / temporary-rc : Portable temporary file and directory support for Windows and Unix

dev-haskell / tls : TLS/SSL protocol native implementation (Server and Client)

dev-haskell / transformers-base : Lift computations from the bottom of a transformer stack

dev-haskell / transformers-compat : A small compatibility shim for dev-haskell/transformers

dev-haskell / vector : Efficient Arrays

dev-haskell / wai : Web Application Interface

dev-haskell / wai-app-static : WAI application for static serving

dev-haskell / wai-conduit : conduit wrappers for WAI

dev-haskell / wai-extra : Provides some basic WAI handlers and middleware

dev-haskell / wai-test : Unit test framework (built on HUnit) for WAI applications. (deprecated)

dev-haskell / warp : A fast, light-weight web server for WAI applications

dev-haskell / xml-conduit : Pure-Haskell utilities for dealing with XML with the conduit package

dev-haskell / yaml : Support for parsing and rendering YAML documents

dev-haskell / yesod : Creation of type-safe, RESTful web applications

dev-haskell / yesod-auth : Authentication for Yesod

dev-haskell / yesod-core : Creation of type-safe, RESTful web applications

dev-haskell / yesod-form : Form handling support for Yesod Web Framework

dev-haskell / yesod-json : Generate content for Yesod using the aeson package. (deprecated)

dev-haskell / yesod-persistent : Some helpers for using Persistent from Yesod

dev-haskell / yesod-static : Static file serving subsite for Yesod Web Framework

dev-haskell / yesod-test : integration testing for WAI/Yesod Applications

dev-haskell / zlib-conduit : Streaming compression/decompression via conduits. (deprecated)

dev-haskell / zlib-enum : Enumerator interface for zlib compression

dev-lang / helium : The Helium Compiler

dev-vcs / darcs : a distributed, interactive, smart revision control system

sci-mathematics / agda : A dependently typed functional programming language and proof assistant

x11-misc / xmobar : A Minimalistic Text Based Status Bar

[haskell overlay] dev-haskell/transformers- - Control/Monad/Trans/Error.hs:69:10: error: Duplicate instance declarations: instance MonadPlus IO
Repository mirror & CI · gentoo
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Sergei Trofimovich · gentoo
*/*: destabilize dev-lang/ghc for all arches
dev-lang/ghc is a fast-moving target without much of stable API across major GHC releases. This makes stabilization process a fragile process. The change moves all haskell revdeps to pure ~arch. There are not many outside dev-haskell/*: - app-emulation/ganeti - app-text/pandoc - dev-util/bustle - dev-util/shellcheck - dev-vcs/darcs - x11-wm/xmonad/xmonad Existing stable haskell users are recommended to keyword used packages and all of dev-haskell/* to ease upgrades. Signed-off-by: Sergei Trofimovich <>
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Sergei Trofimovich · gentoo
*/*: dekeyword haskell on ia64
ia64 is an unregisterised GHC target. That means you need a few days to build ghc itself. It's fun to play with but not practical to use software. Cross-compilation to ia64 still works. Let's drop keywords. Signed-off-by: Sergei Trofimovich <>
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Rolf Eike Beer · gentoo
drop haskell on sparc, it doesn't build at all
Signed-off-by: Rolf Eike Beer <> Signed-off-by: Sergei Trofimovich <>
Repository mirror & CI · gentoo
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Matt Turner · gentoo
*/*: Drop stable ia64 keywords
Signed-off-by: Matt Turner <>
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Matt Turner · gentoo
dev-haskell/*: drop alpha keywords
Signed-off-by: Matt Turner <>
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Michał Górny · gentoo
*/*: Bump copyright on files touched this year
Update the copyright notice on all files that were touched since January 1st but did not have the notice updated. Signed-off-by: Michał Górny <>
Repository mirror & CI · gentoo
Merge updates from master
Matt Turner · gentoo
*/*: Drop stable alpha keywords
Signed-off-by: Matt Turner <>
Repository mirror & CI · gentoo
Merge updates from master
Michał Górny · gentoo
*/*: Inline mirror://hackage and update URIs
This change inlines mirror://hackage in all ebuilds, and updates URIs to the modern form (old URIs redirect to that). The change has been made using the following command: find -name '*.ebuild' -exec sed -r -i \ -e 's@mirror://hackage/@' \ -e 's@[^/]*)/([^/]*)/@\1-\2/@g' \ -e '/hackage\.haskell\.org/s@\$\{PN}-\$\{PV}@${P}@g' \ -e '/hackage\.haskell\.org/s@\$\{MY_PN}-\$\{PV}@${MY_P}@g' \ -e '/hackage\.haskell\.org/s@\$\{PN}-\$\{MY_PV}@${MY_P}@g' \ {} + Signed-off-by: Michał Górny <>
Repository mirror & CI · gentoo
Merge updates from master
Michał Górny · gentoo
dev-haskell: Remove *-fbsd KEYWORDS
Signed-off-by: Michał Górny <>
Sergei Trofimovich · gentoo
dev-haskell/transformers: stable for x86/amd64, bug #631138
Package-Manager: Portage-2.3.10, Repoman-2.3.3 RepoMan-Options: --include-arches="amd64 x86"
Robin H. Johnson · gentoo
Drop $Id$ per council decision in bug #611234.
Signed-off-by: Robin H. Johnson <>
Sergei Trofimovich · gentoo
dev-haskell/transformers: bump up to
Package-Manager: Portage-2.3.3, Repoman-2.3.1
Sergei Trofimovich · gentoo
dev-haskell/transformers: amd64/x86 stable, bug #563090
Package-Manager: portage-2.2.28
Sergei Trofimovich · gentoo
dev-haskell/transformers: allow ghc-7.10.3
Package-Manager: portage-2.2.28
Sergei Trofimovich · gentoo
dev-haskell/transformers: drop old
Package-Manager: portage-2.2.26
Sergei Trofimovich · gentoo
dev-haskell/transformers: disable 0.3 branch on ghc-7.10
Reported-by: Gooberpatrol66 Bug: Package-Manager: portage-2.2.26
Sergei Trofimovich · gentoo
dev-haskell: mark packages as bundled with dev-lang/ghc-7.10.2-r1
Robin H. Johnson · gentoo
proj/gentoo: Initial commit
This commit represents a new era for Gentoo: Storing the gentoo-x86 tree in Git, as converted from CVS. This commit is the start of the NEW history. Any historical data is intended to be grafted onto this point. Creation process: 1. Take final CVS checkout snapshot 2. Remove ALL ChangeLog* files 3. Transform all Manifests to thin 4. Remove empty Manifests 5. Convert all stale $Header$/$Id$ CVS keywords to non-expanded Git $Id$ 5.1. Do not touch files with -kb/-ko keyword flags. Signed-off-by: Robin H. Johnson <> X-Thanks: Alec Warner <> - did the GSoC 2006 migration tests X-Thanks: Robin H. Johnson <> - infra guy, herding this project X-Thanks: Nguyen Thai Ngoc Duy <> - Former Gentoo developer, wrote Git features for the migration X-Thanks: Brian Harring <> - wrote much python to improve cvs2svn X-Thanks: Rich Freeman <> - validation scripts X-Thanks: Patrick Lauer <> - Gentoo dev, running new 2014 work in migration X-Thanks: Michał Górny <> - scripts, QA, nagging X-Thanks: All of other Gentoo developers - many ideas and lots of paint on the bikeshed