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Within LTS Haskell 24.34 (ghc-9.10.3)
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Primitive GHC types with unlifted types inside Primitive GHC types with unlifted types inside. There used to be a module named Data.Primitive.UnliftedArray in the primitive library. However, it turns out that it is impossible to write such an API safely in versions of GHC before 8.10.1, thanks to some nasty interactions between unsafe coercions and the foreign function interface. This package also uses a somewhat different, and more flexible, approach than that module did.
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A small prelude. A sensible set of defaults for writing custom Preludes.
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Test properties and default-mains for QuickCheck This package contains definitions of test properties and default-mains using QuickCheck library.
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Representing common recursion patterns as higher-order functions Many recursive functions share the same structure, e.g. pattern-match on the input and, depending on the data constructor, either recur on a smaller input or terminate the recursion with the base case. Another one: start with a seed value, use it to produce the first element of an infinite list, and recur on a modified seed in order to produce the rest of the list. Such a structure is called a recursion scheme. Using higher-order functions to implement those recursion schemes makes your code clearer, faster, and safer. See README for details.
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PCRE Backend for "Text.Regex" (regex-base) This package provides a PCRE backend for the regex-base API. See also https://wiki.haskell.org/Regular_expressions for more information. Includes bundled code from www.pcre.org
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Binary serialization with version control. An extension to Data.Serialize with built-in version control.
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two monoids as one, in holy haskimony Haskellers are usually familiar with monoids and semigroups. A monoid has an appending operation <> (or mappend), and an identity element, mempty. A semigroup has an appending <> operation, but does not require a mempty element. A Semiring has two appending operations, plus and times, and two respective identity elements, zero and one. More formally, a Semiring R is a set equipped with two binary relations + and *, such that: (R,+) is a commutative monoid with identity element 0, (R,*) is a monoid with identity element 1, (*) left and right distributes over addition, and multiplication by '0' annihilates R.
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A web server for the Snap Framework Snap is a simple and fast web development framework and server written in Haskell. For more information or to download the latest version, you can visit the Snap project website at http://snapframework.com/. The Snap HTTP server is a high performance web server library written in Haskell. Together with the snap-core library upon which it depends, it provides a clean and efficient Haskell programming interface to the HTTP protocol.
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tasty-inspection-testing Inspection testing support for tasty Integrate inspection-testing into tasty test suites.
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Efficient conversion of values into Text text-show offers a replacement for the Show typeclass intended for use with Text instead of Strings. This package was created in the spirit of bytestring-show. For most uses, simply importing TextShow will suffice:
module Main where import TextShow main :: IO () main = printT (Just "Hello, World!")
See also the naming conventions page. Support for automatically deriving TextShow instances can be found in the TextShow.TH and TextShow.Generic modules. text-show only provides instances for data types in the following packages: This policy is in place to keep text-show's dependencies reasonably light. If you need a TextShow instance for a library that is not in this list, it may be covered by the text-show-instances library.