This package provides first class functional references in Van Laarhoven style supporting the following optics: . * Lenses (view, over) . * Traversals (toListOf, matching, over) . * Setters (over) . * Grates (zipWithOf, under, review) . * Resetters (under) . * Adapters (view, review) . * Grids (toListOf, over / under, review) . * Prisms (matching, over / under, review) . * Getters (view) . * Folders (toListOf) . * Reviewers (review).

Cairo is a library to render high quality vector graphics. There exist various backends that allows rendering to Gtk windows, PDF, PS, PNG and SVG documents, amongst others.

Time, clocks and calendars.

REST is a Rewriting library with online termination checking. For more details see the paper at https://arxiv.org/abs/2202.05872.

Bindings for GObject, autogenerated by haskell-gi.

This package provides array, slice and text operations.

Bindings for GdkX11, autogenerated by haskell-gi.

This package provides a simple Haskell progress bar for the console. Heavily borrows from TJ Holowaychuk's Node.JS project <https://github.com/tj/node-progress progress> . <https://github.com/yamadapc/haskell-ascii-progress github>.

This package provides a pure interface for compressing and decompressing streams of data represented as lazy ByteStrings. It uses the bz2 C library so it has high performance.

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 bzip2 feature set.

This package adds resource management and exception handling to the @pipes@ ecosystem. . Notable features include: . * /Resource Safety/: Guarantee finalization using @finally@, @bracket@ and more . * /Exception Safety/: Even against asynchronous exceptions! . * /Laziness/: Only acquire resources when you need them . * /Promptness/: Finalize resources early when you are done with them . * /Native Exception Handling/: Catch and resume from exceptions inside pipes . * /No Buy-in/: Mix resource-safe pipes with unmanaged pipes using @hoist@.

This library defines an Interpreter monad. It allows to load Haskell modules, browse them, type-check and evaluate strings with Haskell expressions and even coerce them into values. The library is thread-safe and type-safe (even the coercion of expressions to values). It is, essentially, a huge subset of the GHC API wrapped in a simpler API.

This package provides functionality for manipulating @OsString@ values, and is shipped with <https://www.haskell.org/ghc/ GHC>.

Included are some folds and maps I've found useful in parsing XML data.

Various useful functions on tuples, overloaded on tuple size.

Bindings for GLib, autogenerated by haskell-gi.

This library implements an SMT-LIB backend (in the sense of the smtlib-backends package) which runs solvers as external processes.

Catchy combinators for HUnit: <https://github.com/hspec/hspec-expectations#readme>.

Bindings for libdbusmenu, autogenerated by haskell-gi.

Bindings for Gdk, autogenerated by haskell-gi.

This package provides a stable version of Hspec which is used to test the in-development version of Hspec.

This library allows an application to extend the 'global state' hidden inside the IO monad with semi-arbitrary data. Data is required to be 'Typeable'. The library provides an essentially unbounded number of key-value stores indexed by strings, with each key within the stores also being a string.

Unaligned access to primitive arrays. The offsets are given in bytes rather than elements.

QuickCheck is a library for random testing of program properties. The programmer provides a specification of the program, in the form of properties which functions should satisfy, and QuickCheck then tests that the properties hold in a large number of randomly generated cases. Specifications are expressed in Haskell, using combinators provided by QuickCheck. QuickCheck provides combinators to define properties, observe the distribution of test data, and define test data generators. . Most of QuickCheck's functionality is exported by the main "Test.QuickCheck" module. The main exception is the monadic property testing library in "Test.QuickCheck.Monadic". . If you are new to QuickCheck, you can try looking at the following resources: . * The <http://www.cse.chalmers.se/~rjmh/QuickCheck/manual.html official QuickCheck manual>. It's a bit out-of-date in some details and doesn't cover newer QuickCheck features, but is still full of good advice. * <https://begriffs.com/posts/2017-01-14-design-use-quickcheck.html>, a detailed tutorial written by a user of QuickCheck. . The <https://hackage.haskell.org/package/quickcheck-instances quickcheck-instances> companion package provides instances for types in Haskell Platform packages at the cost of additional dependencies.