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This library provides mechanisms to efficiently run periodic, on-demand actions in Haskell.
Shelly provides convenient systems programming in Haskell, similar in spirit to POSIX shells. Shelly is originally forked from the Shellish package.
Language C is a Haskell library for the analysis and generation of C code. It features a complete, well-tested parser and pretty printer for all of C99 and a large set of GNU extensions.
This package provides the bytestring builder that is debuting in bytestring-0.10.4.0, which should be shipping with GHC 7.8. Compatibility package for older packages.
This library provides the natural numbers for Haskell.
This library provides functions available in later versions of base to a wider range of compilers, without requiring you to use CPP pragmas in your code. This package provides the same API as the base-compat library, but depends on compatibility packages (such as semigroups) to offer a wider support window than base-compat, which has no dependencies.
This package provides a set of helper programs necessary to build the Gtk2Hs suite of libraries. These tools include a modified c2hs binding tool that is used to generate FFI declarations, a tool to build a type hierarchy that mirrors the C type hierarchy of GObjects found in glib, and a generator for signal declarations that are used to call back from C to Haskell. These tools are not needed to actually run Gtk2Hs programs.
This package contains an implementation of a high-quality splittable pseudorandom number generator. The generator is based on a cryptographic hash function built on top of the ThreeFish block cipher. See the paper "Splittable Pseudorandom Number Generators Using Cryptographic Hashing" by Claessen, Pałka for details and the rationale of the design.
This package provides a backend for the ghc-persistent library using the ghc-postgresql-simple package.
Async provides a library to run IO operations asynchronously, and wait for their results. It is a higher-level interface over threads in Haskell, in which Async a is a concurrent thread that will eventually deliver a value of type a.
Rose (n-ary) trees with both upwards- (i.e. cached) and downwards-traveling (i.e. accumulating) monoidal annotations. This is used as the core data structure underlying the diagrams framework, but potentially has other applications as well.
This package provides bifunctors for Haskell.
This library lets you derive automatically Haskell functions that let you query each endpoint of a <http://hackage.haskell.org/package/servant servant> webservice. . See <http://docs.servant.dev/en/stable/tutorial/Client.html the client section of the tutorial>. . <https://github.com/haskell-servant/servant/blob/master/servant-client/CHANGELOG.md CHANGELOG>.
This package provides a low-level networking interface.
This package provides a new data structure for accurate on-line accumulation of rank-based statistics such as quantiles and trimmed means. . See original paper: "Computing extremely accurate quantiles using t-digest" by Ted Dunning and Otmar Ertl for more details <https://github.com/tdunning/t-digest/blob/07b8f2ca2be8d0a9f04df2feadad5ddc1bb73c88/docs/t-digest-paper/histo.pdf>.
This package provides Haskell 98 groups. A group is a monoid with invertibility.
MissingH is a library of all sorts of utility functions for Haskell programmers. It is written in pure Haskell and thus should be extremely portable and easy to use.
The PGP Word List consists of two phonetic alphabets, each with one word per possible byte value. A string of bytes is translated with these alphabets, alternating between them at each byte.
The PGP words corresponding to the bytes 5B 1D CA 6E are "erase breakaway spellbind headwaters", for example.
For further information, see http://en.wikipedia.org/wiki/PGP_word_list.
To store passwords securely, they should be salted, then hashed with a slow hash function. This library uses PBKDF1-SHA256, and handles all the details. It uses the cryptohash package for speed; if you need a pure Haskell library, pwstore-purehaskell has the exact same API, but uses only pure Haskell. It is about 25 times slower than this package, but still quite usable.
This package provides a plotting library for Haskell, using gnuplot for rendering.
This library uses GHC.Generics to derive efficient optics (traversals, lenses and prisms) for algebraic data types in a type-directed way, with a focus on good type inference and error messages when possible. The library exposes a van Laarhoven interface. For an alternative interface, supporting an opaque optic type, see generic-optics.
This package provides a modular backend for rendering diagrams created with the diagrams embedded domain-specific language (EDSL) to Scalable Vector Graphics (SVG) files.
Concatenative gives Haskell Factor-style combinators and arrows for postfix notation. For more information on stack based languages, see https://concatenative.org.
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.