This library provides instances of Binary for the types defined in the vector package, making it easy to serialize vectors to and from disk. We use the generic interface to vectors, so all vector types are supported. Specific instances are provided for unboxed, boxed and storable vectors.

This package provides helper functions for working with haskell-src-exts trees.

This package provides a quasiquoter for non-interpolated strings, texts and bytestrings.

This module provides set and multiset operations on ordered lists.

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.

The premise of basic-prelude is that there are a lot of very commonly desired features missing from the standard Prelude, such as commonly used operators (<$> and >=>, for instance) and imports for common datatypes (e.g., ByteString and Vector). At the same time, there are lots of other components which are more debatable, such as providing polymorphic versions of common functions.

So basic-prelude is intended to give a common foundation for a number of alternate preludes. The package provides two modules: CorePrelude provides the common ground for other preludes to build on top of, while BasicPrelude exports CorePrelude together with commonly used list functions to provide a drop-in replacement for the standard Prelude.

Users wishing to have an improved Prelude can use BasicPrelude. Developers wishing to create a new prelude should use CorePrelude.

This package provides tools to parse and produce literals efficiently from strict or lazy bytestrings.

This library provides a half-precision floating-point computation library for Haskell.

This library provides a class for non-negative numbers, a wrapper which can turn any ordered numeric type into a member of that class, and a lazy number type for non-negative numbers (a generalization of Peano numbers).

Backported versions of types that were added to transformers in transformers 0.3 and 0.4 for users who need strict transformers 0.2 or 0.3 compatibility to run on old versions of the platform.

Basic file IO operations like Prelude, but for OsPath'.

This package contains a simple and pure LRU cache. The implementation is based on Data.Map from the containers library. Further, the package also containes a multiple IO wrapper that enables atomic updates of the cache.

Alex is a tool for generating lexical analysers in Haskell. It takes a description of tokens based on regular expressions and generates a Haskell module containing code for scanning text efficiently. It is similar to the tool lex or flex for C/C++.

This package provides ANSI terminal support for Haskell. It allows cursor movement, screen clearing, color output showing or hiding the cursor, and changing the title.

This package defines new symbols for a number of functions, operators and types in the base package. All symbols are documented with their actual definition and information regarding their Unicode code point. They should be completely interchangeable with their definitions. For further Unicode goodness you can enable the UnicodeSyntax language extension. This extension enables Unicode characters to be used to stand for certain ASCII character sequences, i.e. → instead of ->, ∀ instead of forall and many others.

This library can load and store images in PNG, Bitmap, JPEG, Radiance, TIFF and GIF formats.

This is a lightweight package providing commonly useful parser combinators.

This package provides a pure interface for compressing and decompressing streams of data represented as lazy ByteStrings. It uses the zlib C library so it has high performance. It supports the zlib, gzip and raw compression formats. It provides a convenient high level API suitable for most tasks and for the few cases where more control is needed it provides access to the full zlib feature set.

This library provides access to system information and functionality to Lua scripts via Haskell's System module. Intended usage for this package is to preload it by adding the loader function to package.preload. Note that the Lua package library must have already been loaded before the loader can be added.

This Haskell package supports the definition of generic functions. Datatypes are viewed in a uniform, structured way: the choice between constructors is represented using an n-ary sum, and the arguments of each constructor are represented using an n-ary product.

This Haskell package provides a validator that can validate an email address string against RFC 5322.

This package provides implementation of the Wagner-Fischer dynamic programming algorithm to find the optimal edit script and cost between two sequences. The implementation in this package is specialised to sequences represented with Data.Vector but is otherwise agnostic to:

• The type of values in the vectors;

• The type representing edit operations; and

• The type representing the cost of operations.

This Haskell library provides a simple purely functional circular list, or ring, data type: a circular data structure such that if you continue rotating the ring in either direction, you'll eventually return to the element you first observed.

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