This library implements the 'patience diff' algorithm, as well as the patience algorithm for the longest increasing subsequence problem. Patience diff computes the difference between two lists, for example the lines of two versions of a source file. It provides a good balance between performance, nice output for humans, and simplicity of implementation.

This library lets you create a one-shot timer, poll it using STM, and update it to ring at a different time than initially specified. It uses GHC event manager timeouts when available, yielding performance similar to threadDelay and registerDelay. Otherwise, it falls back to forked threads and threadDelay.

This package provides two simple conduit wrappers around STM channels: a source and a sink.

This package provides a Haskell type inhabited by finitely many values and indexed by type-level naturals.

This package provides the tldr command and a Haskell client library allowing users to update and view tldr pages from a shell. The tldr pages are a community effort to simplify the man pages with practical examples.

This library provides tools for reading and manipulating the .cabal file format. . Version 3.6 (unlike the following versions) is a dummy package that prevents module name clases between Cabal and Cabal-syntax if used together with a Cabal flag as described below. . In Cabal-3.7 this package was split off. To avoid module name clashes, you can add this to your .cabal file: . > flag Cabal-syntax > description: Use the new Cabal-syntax package > default: False > manual: False > > library > -- ... > if flag(Cabal-syntax) > build-depends: Cabal-syntax >= 3.7 > else > build-depends: Cabal < 3.7, Cabal-syntax < 3.7 . This will default to the older build, but will allow consumers to opt-in to the newer libraries by requiring Cabal or Cabal-syntax >= 3.7

Haskeline provides a user interface for line input in command-line programs. This library is similar in purpose to readline, but since it is written in Haskell it is (hopefully) more easily used in other Haskell programs.

Haskeline runs both on POSIX-compatible systems and on Windows.

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.

vty is a terminal GUI library in the niche of ncurses, intended to be easy to use and to provide good support for common terminal types.

This library provides a half-precision floating-point computation library for Haskell.

This library implements the GHC API. It is like the compiler-provided ghc package, but it can be loaded on many compiler versions.

Hslogger lets each log message have a priority and source be associated with it. The programmer can then define global handlers that route or filter messages based on the priority and source. It also has a syslog handler built in.

This package defines new symbols for a number of functions, operators and types in the base package. All symbols are documented with their actual definition and information regarding their Unicode code point. They should be completely interchangeable with their definitions. For further Unicode goodness you can enable the UnicodeSyntax language extension. This extension enables Unicode characters to be used to stand for certain ASCII character sequences, i.e. → instead of ->, ∀ instead of forall and many others.

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

cassava is a library for parsing and encoding RFC 4180 compliant comma-separated values (CSV) data, which is a textual line-oriented format commonly used for exchanging tabular data.

cassava's API includes support for:

• Index-based record-conversion

• Name-based record-conversion

• Typeclass directed conversion of fields and records

• Built-in field-conversion instances for standard types

• Customizable record-conversion instance derivation via GHC generics

• Low-level bytestring builders (see Data.Csv.Builder)

• Incremental decoding and encoding API (see Data.Csv.Incremental)

• Streaming API for constant-space decoding (see Data.Csv.Streaming)

Moreover, this library is designed to be easy to use; for instance, here's a very simple example of encoding CSV data:

>>> Data.Csv.encode [("John",27),("Jane",28)]
"John,27
Jane,28
"

This module allows tokens produced by skylighting-core to be rendered as ANSI colored text.

This package defines a class, Hashable, for types that can be converted to a hash value. This class exists for the benefit of hashing-based data structures. The package provides instances for basic types and a way to combine hash values.

This package provides a Haskell library for working with base16-encoded data quickly and efficiently, using the ByteString type.

This package provides Haskell APIs to efficiently access the <https://www.unicode.org/ucd/ Unicode character database> (UCD). Performance is the primary goal in the design of this package. The Haskell data structures are generated programmatically from the UCD files.

Haskell bindings to the International Components for Unicode (ICU) libraries. These libraries provide robust and full-featured Unicode services on a wide variety of platforms. . Features include: . * Both pure and impure bindings, to allow for fine control over efficiency and ease of use. . * Breaking of strings on character, word, sentence, and line boundaries. . * Access to the Unicode Character Database (UCD) of character metadata. . * String collation functions, for locales where the conventions for lexicographic ordering differ from the simple numeric ordering of character codes. . * Character set conversion functions, allowing conversion between Unicode and over 220 character encodings. . * Unicode normalization. (When implementations keep strings in a normalized form, they can be assured that equivalent strings have a unique binary representation.) . * Regular expression search and replace. . * Security checks for visually confusable (spoofable) strings. . * Bidirectional Unicode algorithm . * Calendar objects holding dates and times. . * Number and calendar formatting.

This package provides a wrapper around the Pango C library that allows high-quality rendering of Unicode text. It can be used either with Cairo to output text in PDF, PS or other documents or with Gtk+ to display text on-screen.

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 simple XML library for Haskell.

This package provides a small cross-platform library for reading and modifying the system clipboard. It uses xclip or xsel at runtime.