Haskell bindings to the International Components for Unicode (ICU) libraries. These libraries provide robust and full-featured Unicode services on a wide variety of platforms. . Features include: . * Both pure and impure bindings, to allow for fine control over efficiency and ease of use. . * Breaking of strings on character, word, sentence, and line boundaries. . * Access to the Unicode Character Database (UCD) of character metadata. . * String collation functions, for locales where the conventions for lexicographic ordering differ from the simple numeric ordering of character codes. . * Character set conversion functions, allowing conversion between Unicode and over 220 character encodings. . * Unicode normalization. (When implementations keep strings in a normalized form, they can be assured that equivalent strings have a unique binary representation.) . * Regular expression search and replace. . * Security checks for visually confusable (spoofable) strings. . * Bidirectional Unicode algorithm . * Calendar objects holding dates and times. . * Number and calendar formatting.

SmallCheck is a testing library that verifies properties for all test cases up to some depth. The test cases are generated automatically by SmallCheck.

This package provides a pretty printing class similar to Show, based on the HughesPJ pretty printing library. It provides the pretty printing class and instances for the Prelude types.

This package provides a Haskell library including a Storable instance for Complex which is binary compatible with C99, C++ and Fortran complex data types.

Haskell library for both generating and consuming project templates.

ost IDEs provide the concept of a project template: instead of writing all of the code for a project from scratch, you select a template, answer a few questions, and a bunch of files are automatically generated.

project-template tries to provide a canonical Haskell library for implementing the ideal templating system.

This library tries to call minimum system calls which are the bottleneck of web servers.

The texmath library provides functions to read and write TeX math, presentation MathML, and OMML (Office Math Markup Language, used in Microsoft Office). Support is also included for converting math formats to pandoc's native format (allowing conversion, via pandoc, to a variety of different markup formats). The TeX reader supports basic LaTeX and AMS extensions, and it can parse and apply LaTeX macros.

This package provides a data structure representing a bidirectional mapping between two key types. Each value in the bimap is associated with exactly one value of the opposite type.

This package provides a Dec type for representing deciable relations.

type Neg a = a -> Void

data Dec a
    = Yes a
    | No (Neg a)

The mockery package provides support functions for automated testing.

This package provides a pipe-based interface to the Aspell program (no dynamic linking required).

This library implements the 'patience diff' algorithm, as well as the patience algorithm for the longest increasing subsequence problem. Patience diff computes the difference between two lists, for example the lines of two versions of a source file. It provides a good balance between performance, nice output for humans, and simplicity of implementation.

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 algorithms on Conduits, including higher level asynchronous processing and some other utilities.

Provides default instances for types from the containers package.

More complex tests for chell.

A cross-platform library with functions for adjusting code pages on Windows. On all other operating systems, the library does nothing.

The ghc-ini Haskell library lets programmers quickly and easily read and write configuration files in the simple INI format.

Special values are provided by a SpecialValues typeclass. Those can be used for example by QuickCheck, see quickcheck-special.

The ghc-lib-parser-ex package contains GHC API parse tree utilities.

Provides Arbitrary instances for fgl graphs to avoid adding a QuickCheck dependency for fgl whilst still making the instances available to others. Also available are non-fgl-specific functions for generating graph-like data structures.

This package tries to compat as many time features as possible.

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

This package implements selective applicative functors, which allow you to declare your effects statically, and select which to execute dynamically. See the paper on selective functors for more details.