This is only for use in developing libraries that should conform to the persistent interface, not for users of the persistent suite of database libraries.

This Haskell library provides pointed and copointed data types.

Network recv based on buffer pools

Monad classes using type families, with instances for various monad transformers, inspired by the paper 'Functional Programming with Overloading and Higher-Order Polymorphism', by Mark P Jones. This package is almost a compatible replacement for the mtl-tf package.

This library provides the natural numbers for Haskell.

This package provides Haskell bindings to the setlocale C function.

This Haskell package defines typeclasses used for converting Haskell data types to and from HTTP API data.

This package extends https://hackage.haskell.org/package/process. It allows you to read process input and output as ByteStrings or Text, or write your own ProcessOutput instance. It also provides lazy process input and output, and a ProcessMaker class for more flexibility in the process creation API.

This package provides a Readable type class for reading data types from ByteString and Text. It also includes efficient implementations for common data types.

This package provides a parser and pretty printer for converting between Haskell values and JSON. JavaScript Object Notation is a lightweight data-interchange format.

This package provides low-dependency functionality commonly needed by various Haskell streaming data libraries, such as conduit and pipes.

This Haskell package provides the core MonadUnliftIO typeclass, a number of common instances, and a collection of common functions working with it.

This library provides an interface to GSL special functions for Haskell.

This package provides access to platform dependent file locking APIs. There are alternative file locking packages:

• GHC.IO.Handle.Lock in base >= 4.10 is good enough for most use cases. However, uses only Handles so these locks cannot be used for intra-process locking.

• ghc-filelock doesn't support OFD locking.

This package provides a pure Haskell client library for the Music Player Daemon.

This package contains the Control.Monad.Fail module providing the MonadFail class that became available in base-4.9.0.0 for older base package versions. This package turns into an empty package when used with GHC versions which already provide the Control.Monad.Fail module.

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 provides a writer monad for multi-line string literals.

This package normalizes variations in the interface for inspecting datatype information via Template Haskell so that packages and support a single, easier to use informational datatype while supporting many versions of Template Haskell.

This package provides low-level bindings to the zlib package.

This Haskell library provides simple read-only access to the local computer's networking configuration. It is currently capable of getting a list of all the network interfaces and their respective IPv4, IPv6 and MAC addresses.

This package provides efficient vector-based hashtable implementation similar to .NET Generic Dictionary implementation (at the time of 2015).

The config-ini Haskell library exports some simple monadic functions to ease the parsing of .ini-style configuration files, and to write and update them in an efficient diff-minimal way. This means that if you parse a file, update a single field, and reserialize, that file should differ only in the field we changed and that's it: field order, comments, and incidental whitespace will remain unchanged. The library aims to produce human-readable error messages when things go wrong.

SDL_mixer is a sample multi-channel audio mixer library. It supports any number of simultaneously playing channels of 16 bit stereo audio, plus a single channel of music, mixed by the popular MikMod MOD, Timidity MIDI, Ogg Vorbis, and SMPEG MP3 libraries.