Provides instances of the Validity type class for lazy and strict ByteStrings and ShortByteStrings.

A reusable library containing hledger's core functionality. This is used by most hledger* packages so that they support the same common file formats, command line options, reports etc.

hledger is a robust, cross-platform set of tools for tracking money, time, or any other commodity, using double-entry accounting and a simple, editable file format, with command-line, terminal and web interfaces. It is a Haskell rewrite of Ledger, and one of the leading implementations of Plain Text Accounting.

This package provides tools to parse Haskell sources to the template-haskell abstract syntax.

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 contains functions (like view or +=) which work on MonadReader, MonadWriter, and MonadState from the mtl package. This package is a part of the microlens family; see the readme on Github.

This package provides a library implementing the XDG Base Directory spec.

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

This library defines a data structure for representing Jupyter notebooks, along with ToJSON and FromJSON instances for conversion to and from JSON .ipynb files.

This package provides Haskell bindings to SDL2_ttf C++ library.

This package provides a simple applicative parser in Parsec style.

This package provides a plotting library for Haskell, using gnuplot for rendering.

IP Routing Table is a tree of IP ranges to search one of them on the longest match base. It is a kind of TRIE with one way branching removed. Both IPv4 and IPv6 are supported.

A library for generating concise pretty printers based on precedence rules.

This package provides a compatibility layer for GHC's wherefrom function, which exposes info provenance information. Each major version of this library exports a different version of this interface.

PCG is a family of simple fast space-efficient statistically good algorithms for random number generation. Unlike many general-purpose RNGs, they are also hard to predict. . This library implements bindings to the standard C implementation. This includes the standard, unique, fast and single variants in the pcg family. There is a pure implementation that can be used as a generator with the random package as well as a faster primitive api that includes functions for generating common types. . The generators in this module are suitable for use in parallel but make sure threads don't share the same generator or things will go horribly wrong.

This package provides various primitive memory-related operations.

This package defines the type class MonadBaseControl, a subset of MonadBase into which generic control operations such as catch can be lifted from IO or any other base monad.

Provides a FilePath datatype and utility functions for operating on it. Unlike the filepath package, this package does not simply reuse String, increasing type safety.

This package provides a backwards compatibility layer for Template Haskell newer than 2.8.

This Haskell library provides a purely functional interface to selected numerical computations, internally implemented using GSL.

This Haskell package includes tools for generating and consuming feeds in both RSS (Really Simple Syndication) and Atom format.

Transformers provides functor and monad transformers, inspired by the paper "Functional Programming with Overloading and Higher-Order Polymorphism", by Mark P Jones, in Advanced School of Functional Programming, 1995 http://web.cecs.pdx.edu/~mpj/pubs/springschool.html.

This package contains:

• the monad transformer class (in Control.Monad.Trans.Class)

• concrete functor and monad transformers, each with associated operations and functions to lift operations associated with other transformers.

This package can be used on its own in portable Haskell code, in which case operations need to be manually lifted through transformer stacks (see Control.Monad.Trans.Class for some examples). Alternatively, it can be used with the non-portable monad classes in the mtl or monads-tf packages, which automatically lift operations introduced by monad transformers through other transformers.

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

Safe conversions between textual types