This library provides a continuation-based, backtracking, logic programming monad. An adaptation of the two-continuation implementation found in the paper "Backtracking, Interleaving, and Terminating Monad Transformers" available online.

A thread safe API to write a line of textual data to a Handle, such as sending some messages to the terminal - that has the following properties:

• Properly handle character encoding settings on the Handle

• For reasonably sized messages, ensure that the entire message is written in one chunk to avoid interleaving data with other threads

• Avoid unnecessary memory allocations and copies

• Minimize locking.

This package provides the Network.Multicast Haskell module for sending UDP datagrams over multicast (class D) addresses.

This package provides a Template Haskell splice that expand to the value of an environment variable. This can be used to embed build-time parameters in the application.

Experimental Hspec support for testing WAI applications

This library provides an easy way to define command line parsers.

A decimal number has an integer mantissa and a negative exponent. The exponent can be interpreted as the number of decimal places in the value.

This package provides a string interpolation library for Haskell.

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 portable implementations of parts of the unix package. This package re-exports the unix package when available. When it isn't available, portable implementations are used.

ghc-blaze-textual is a fast Haskell library for rendering common Haskell datatypes in text form using the ghc-blaze-builder library.

This library provides a datatype which can be interpreted by apply-refact. It exists as a separate library so that applications can specify refactorings without depending on GHC.

Efficient hashing-based container types. The containers have been optimized for performance critical use, both in terms of large data quantities and high speed.

This package provides a version of ghc-hspec-expectations generalized to MonadIO.

Reading of directory contents in constant memory, i.e. in an iterative fashion without storing all directory elements in memory. From another perspective, this reading interface allows stopping at any point without loading every directory element. Also defines general-purpose recursive directory traversals. Both Windows and Unix systems are supported.

This module allows tokens produced by skylighting-core to be rendered as ANSI colored text.

Clear to write, read and edit Haskell DSL for HTML.

• Names are consistent, and do not conflict with base or are keywords (all have suffix -).

• Same combinator can be used for attributes and elements (e.g. style_).

This library provides profunctors for Haskell.

This Haskell package provides striped pooling abstraction for managing flexibly-sized collections of resources such as database connections.

This Haskell package was originally present in classy-prelude.

Alternative parser for the Cassava package written with Megaparsec that provides for better error messages at the expense of some speed.

This package provides instances for QuickCheck's \"Arbitrary\" typeclass.

This package provides filtrable containers.

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.