This library provides the functions to find unique and duplicate elements in a list.

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 allows you to have a README.md that at the same time is a literate Haskell program.

This package provides a set of helper programs necessary to build the Gtk2Hs suite of libraries. These tools include a modified c2hs binding tool that is used to generate FFI declarations, a tool to build a type hierarchy that mirrors the C type hierarchy of GObjects found in glib, and a generator for signal declarations that are used to call back from C to Haskell. These tools are not needed to actually run Gtk2Hs programs.

This library provides Kan extensions, Kan lifts, various forms of the Yoneda lemma, and (co)density (co)monads for Haskell.

This library provides data structures for describing changes to other data structures. In this library, a patch is something that can be applied, analogous to a function, and which distinguishes returning the argument it was provided from returning something else.

This package contains an implementation of a high-quality splittable pseudorandom number generator. The generator is based on a cryptographic hash function built on top of the ThreeFish block cipher. See the paper "Splittable Pseudorandom Number Generators Using Cryptographic Hashing" by Claessen, Pałka for details and the rationale of the design.

The mockery package provides support functions for automated testing.

This library provides a pure Haskell implementation of the Unicode Collation Algorithm described at http://www.unicode.org/reports/tr10/. It is not as fully-featured or as performant as text-icu, but it avoids a dependency on a large C library. Locale-specific tailorings are also provided.

Wrappers and helpers to bridge Haskell and <https://www.lua.org/ Lua>. . It builds upon the /lua/ package, which allows bundling a Lua interpreter with a Haskell program.

This package provides a simple interface for building .dot graph files, for input into the dot and graphviz tools. It includes a monadic interface for building graphs.

OpenGLRaw is a raw Haskell binding for the OpenGL 4.5 graphics system and lots of OpenGL extensions. It is basically a 1:1 mapping of OpenGL's C API, intended as a basis for a nicer interface. OpenGLRaw offers access to all necessary functions, tokens and types plus a general facility for loading extension entries. The module hierarchy closely mirrors the naming structure of the OpenGL extensions, making it easy to find the right module to import. All API entries are loaded dynamically, so no special C header files are needed for building this package. If an API entry is not found at runtime, a userError is thrown.

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

GHC 7.4 introduced a new casMutVar PrimOp which is difficult to use safely, because pointer equality is a highly unstable property in Haskell. This library provides a safer method based on the concept of Tickets.

This package provides filtrable containers.

This package provides instances defined in later versions of ghc-binary package.

This module locates the full directory of the running program, to allow the use of paths relative to it. FindBin supports invocation of Haskell programs via "ghci", via "runhaskell/runghc", as well as compiled as an executable.

This library provides a YAML 1.2 parser implementation for Haskell. Its features include:

• Pure Haskell implementation with small dependency footprint and emphasis on strict compliance with the YAML 1.2 specification.

• Direct decoding to native Haskell types via (aeson-inspired) typeclass-based API (see Data.YAML).

• Support for constructing custom YAML node graph representation (including support for cyclic YAML data structures).

• Support for the standard (untyped) Failsafe, (strict) JSON, and (flexible) Core ``schemas'' providing implicit typing rules as defined in the YAML 1.2 specification (including support for user-defined custom schemas).

• Event-based API resembling LibYAML's Event-based API (see Data.YAML.Event).

• Low-level API access to lexical token-based scanner (see Data.YAML.Token).

Please see the README and documentation at <https://www.stackage.org/package/githash>

Network.HostName is a simple package providing a means to determine the hostname.

This package provides a compatibility layer for using GHC call stacks with different versions of the compiler.

This library provides functions for use in parsing indentation sensitive contexts. It parses blocks of lines all indented to the same level as well as lines continued at an indented level below.

This library provides some useful extensions for ghc-commonmark to parser core commonmark syntax: smart quotes, definition lists, tables, footnotes, math, and more.

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