POSIX operations on Handles

Unix memory syscalls

Run processes on Unix systems, with a conduit interface (deprecated)

Fast and flexible primitives for recursive file system IO on Posix systems

Straightforward bindings to the posix API

Unleash feature toggle client core

Typeclass for monads that can be unlifted to arbitrary base monads

(un)lifted classes and functions for the STM monad

GHC Haskell lists of non-thunks (things of kind TYPE 'UnliftedRep)

Fast and robust message queues for concurrent processes

A Library for the manipulation of images

Rematch support for unordered containers

Graph library using unordered-containers

A specialization of `HashMap Int v`

Monad transformers that mirror worker-wrapper transformations

Unpacked containers via backpack

An unpacked either data type

An unpacked maybe data type

optional text that unpacks well

Compiler plugin for loop unrolling

Flexible access control for unsafe operations and instances

Unsatisfiable type class

An extension removing the sequentiality from monads

A command line tool to identify unused code

Units of measure as a GHC type-checker plugin

A style of maintaining and upgrading Haskell projects

Haskell client for Uploadcare

Binding to upskirt

Hoon-style atom manipulation and printing functions

Library for working with URIs

Read and write URIs (deprecated)

A uri encoder to make your strings less readable

A simple library for parsing and generating URIs

URI template library for Haskell

Memory efficient url type and parser

Decoders for URL-encoding (aka Percent-encoding)

Parse/format generic key/value URLs from record data types

Parallel link checker

Decode percent-encoded strings

Simple, declarative, expressive URL routing -- on happstack

Universal Resource Names

A package for updatable discrete distributions

XML parser-printer supporting Ur/Web syntax extensions

A collection of user agents

A mysql-haskell backend for the users library

A persistent backend for the users package

A PostgreSQL backend for the users package

UTF-8

A string conversion library that assumes utf8

Variants of Prelude and System.IO with UTF8 text I/O operations

Constant-space UTF8 validator for ByteStrings

See README for more info

A collection of commonly used utils

Primitive memory-related utilities

Utilities for compiler construction: core functionality

Attribute Grammar System of Universiteit Utrecht

Utility for drawing attribute grammar pictures with the diagrams package

Aeson types for UUID instances

Fast unboxed arrays with a flexible interface

Cross-language extensible representation for algebraic data type instances

Core algorithms and datatypes used by vabal

Graph representation of the GHC heap

Runs commands on remote machines using ssh

Type isomorphic to `Either` with `Applicative` instance which combines errors

Valid operator/module characters

Type-level constraints on strings and other input

A nice way to define field validations in Haskell

Straightforward validation monad

Composable validations for your Haskell data types

Valuations

A library for generating values without having to thread state

Analyze and visualize expression trees

Mutable variables and tuples

The VarMonad typeclass, generalizing types of references

Process mpileup output to identify significant differences

Simple type for representing one of several media types

Monads with variables, without deep magic

Abstractions for working with variadic functions

nominal value with possible variations

Vary: Friendly and fast polymorphic variants (open unions/coproducts/extensible sums)

Client library for HashiCorp's Vault tool (via HTTP API)

semi-transparent persistence for Haskell using LMDB, STM

Recursively check that a directory is under version control

A package to parse VCF files inspired in similar python libraries

Wrapper for source code management systems

A low-dimensional linear algebra library, operating on the Floating typeclass

OpenGL support for the `vect' low-dimensional linear algebra library

ByteStrings as type synonyms of Storable Vectors of Word8s

circular vectors

Vector clocks for versioning message flows

Conduit utilities for vectors

Some special functions to work with Vector (with zip)

Storable vectors with cpu-independent representation

vectors that perform the fmap operation in constant time

A type-safe library for vectors whose elements can be of any type, or any type satisfying some constraints

Generate vectors filled with high quality pseudorandom numbers

(deprecated) Read instances for 'Data.Vector'