This package provides fast unicode character sets for Haskell, based on complemented PATRICIA tries.

This package contains basic definitions related to indexed profunctors. These are primarily intended as internal utilities to support the optics and generic-lens package families.

This package provides Haskell bindings for libcmark-gfm, the reference parser for GitHub Flavored Markdown, a fully specified variant of Markdown. It includes sources for libcmark-gfm and does not require prior installation of the C library.

This package backports the Control.Monad.Except module from mtl (if using mtl-2.2.0.1 or earlier), which reexports the ExceptT monad transformer and the MonadError class.

This package should only be used if there is a need to use the Control.Monad.Except module specifically. If you just want the mtl class instances for ExceptT, use transformers-compat instead, since mtl-compat does nothing but reexport the instances from that package.

Note that unlike how mtl-2.2 or later works, the Control.Monad.Except module defined in this package exports all of ExceptT's monad class instances. Therefore, you may have to declare import Control.Monad.Except () at the top of your file to get all of the ExceptT instances in scope.

This package provides memory abstractions, such as chunk of memory, polymorphic byte array management and manipulation functions. It contains a polymorphic byte array abstraction and functions similar to strict ByteString, different type of byte array abstraction, raw memory IO operations (memory set, memory copy, ..) and more

This Haskell package provides interfaces and helper functions for the ghc-persistent package.

This package provides a fully compliant Haskell 98 lexer.

This library provides tools to create command line interfaces with ease.

This is an implementation of Tarjan's Union-Find algorithm (Robert E.: Tarjan. "Efficiency of a Good But Not Linear Set Union Algorithm",JACM 22(2), 1975) in order to maintain an equivalence relation. This implementation is a port of the union-find package using the ST monad transformer (instead of the IO monad).

Contravariant functors for Haskell.

ByteString-backed Handles

This is a Haskell library to derive Template Haskell's Lift class for datatypes.

This package provides a writer monad for multi-line string literals.

This package provides datatypes to construct Free monads, Free monad transformers, and useful instances. In addition it provides the constructs to avoid quadratic complexity of left associative bind, as explained in:

• Janis Voigtlander, Asymptotic Improvement of Computations over Free Monads, MPC'08

This package provides an abstract class to manipulate sequence of bytes. The use case of this class is abstracting manipulation of types that are just wrapping a bytestring with stronger and more meaniful name.

This package provides a library for generating 2D charts and plots, with backends provided by the Cairo and Diagrams libraries.

This package provides Haskell bindings to bibutils, a library that interconverts between various bibliography formats using a common MODS-format XML intermediate.

This package provides an abstraction for communicating with line-oriented network services while abstracting over the use of SOCKS5 and TLS (via OpenSSL)

This library provides parsers and printers for bencoded data. Bencode is the encoding used by the peer-to-peer file sharing system BitTorrent for storing and transmitting loosely structured data.

Values of custom types usually have invariants imposed upon them. This package provides the Validity type class, which makes these invariants explicit by providing a function to check whether the invariants hold.

Brick helps you write terminal user interfaces (TUIs). You write an event handler and a drawing function and the library does the rest.

This library provides tools for reading and manipulating the .cabal file format. . Version 3.6 (unlike the following versions) is a dummy package that prevents module name clases between Cabal and Cabal-syntax if used together with a Cabal flag as described below. . In Cabal-3.7 this package was split off. To avoid module name clashes, you can add this to your .cabal file: . > flag Cabal-syntax > description: Use the new Cabal-syntax package > default: False > manual: False > > library > -- ... > if flag(Cabal-syntax) > build-depends: Cabal-syntax >= 3.7 > else > build-depends: Cabal < 3.7, Cabal-syntax < 3.7 . This will default to the older build, but will allow consumers to opt-in to the newer libraries by requiring Cabal or Cabal-syntax >= 3.7

This package provides a full-featured binding to the C libmagic library. With it, you can determine the type of a file by examining its contents rather than its name.

GLURaw is a raw Haskell binding for the GLU 1.3 OpenGL utility library. It is basically a 1:1 mapping of GLU's C API, intended as a basis for a nicer interface.