This package implements an API for accessing the Domain Name Service (DNS) resolver service via the standard libresolv system library (whose API is often available directly via the standard libc C library) on Unix systems.

This library provides functions for parsing and pretty printing Roman numerals. Because the notation of Roman numerals has varied through the centuries this package allows for some customisation using a configuration that is passed to the conversion functions.

A nonce is an arbitrary number used only once in a cryptographic communication. This package contain helper functions for generating nonces. There are many kinds of nonces used in different situations. It's not guaranteed that by using the nonces from this package you won't have any security issues. Please make sure that the nonces generated via this package are usable on your design.

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.

Get terminal window height and width without ncurses dependency.

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

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

This package provides a bunch of ad hoc classes for accessing parts of a container. In practice this package is largely subsumed by the ghc-lens, but it is maintained for now as it has much simpler dependencies.

This package provides a compatibility layer providing Binary instances for strict and lazy text types for versions older than 1.2.1 of the text package.

This is a Haskell library to derive Template Haskell's Lift class for datatypes.

Bindings to the Xft, X Free Type interface library, and some Xrender parts.

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.

Pattern synonyms for ASCII characters, e.g. . @ pattern SPACE :: Word8 pattern SPACE = 0x20 @.

This Haskell library offers (among other things) the following selection of synchronisation primitives:

• Broadcast: Wake multiple threads by broadcasting a value.

• Event: Wake multiple threads by signalling an event.

• Lock: Enforce exclusive access to a resource. Also known as a binary semaphore or mutex. The package additionally provides an alternative that works in the STM monad.

• RLock: A lock which can be acquired multiple times by the same thread. Also known as a reentrant mutex.

• ReadWriteLock: Multiple-reader, single-writer locks. Used to protect shared resources which may be concurrently read, but only sequentially written.

• ReadWriteVar: Concurrent read, sequential write variables.

Please consult the API documentation of the individual modules for more detailed information.

This package was inspired by the concurrency libraries of Java and Python.

Fixpoint types and recursion schemes. If you define your AST as fixpoint type, you get fold and unfold operations for free.

Thanks for contribution to: Matej Kollar, Herbert Valerio Riedel

This package attempts to provide support for using Amazon Web Services like S3 (storage), SQS (queuing) and others to Haskell programmers. The ultimate goal is to support all Amazon Web Services.

This Haskell package provides an either monad transformer.

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.

The HMatrix package provides a Haskell library for dealing with linear systems, matrix decompositions, and other numerical computations based on BLAS and LAPACK.

A package for convenient access to high-resolution clock and timer functions of different operating systems via a unified API.

This package provides a monad transformer version of the ST monad for strict state threads.

This library provides a conduit-based, streaming interface for extracting and creating tar files.

This package provides a writer monad for multi-line string literals.

Concatenative gives Haskell Factor-style combinators and arrows for postfix notation. For more information on stack based languages, see https://concatenative.org.