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Within LTS Haskell 24.28 (ghc-9.10.3)
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LPeg – Parsing Expression Grammars For Lua This package contains the C sources of LPeg, as well as some tiny Haskell helper to load the package. http://www.inf.puc-rio.br/~roberto/lpeg/
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a simple, pure LRU cache This package contains a simple, pure LRU cache, implemented in terms of Data.Map. It also contains a mutable IO wrapper providing atomic updates to an LRU cache.
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Trek through your code forest and make logs This is a logging facility. Yes, there are many, and this is the one with a beard, wearing flannel and boots, that gets the job done. It's not the fanciest, it doesn't have a cargo-van full of features. This logger is designed to be straightforward to use, provide a good set of standard features, and be useable across a broad set of code.
- Logging itself is a monadic activity. This activity is most often performed in a monad stack with a MonadIO context to allow writing to files.
- The specific logging action implementations are managed separately from the actions of logging messages in the target code. This allows logging to be configurable and the manner of logging to be specified at startup time without requiring changes in the code from which log messages are being generated.
- The logging implementation code can use contravariant functors to adjust existing logging.
- Main code will typically retrieve the logging actions from a Reader context in your monad stack. That said, Log actions are not tied to an enclosing Monad. There are helpers to support a Monad which can store Log actions, but Log actions can also be explicitly passed and used.
- The prettyprinter package is used for formatting.
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Networked stream transducers Networked stream transducers Rúnar Bjarnason's talk on machines can be downloaded from: http://web.archive.org/web/20161029161813/https://dl.dropboxusercontent.com/u/4588997/Machines.pdf
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Syntax sugar for defining maps Haskell's canonical list of tuples syntax for defining maps is not very convenient and also has ambiguous semantics. This package leverages do notation to create a lighter syntax that makes semantics explicit and also allows the option of fail-fast handling of duplicate keys.
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Convert Markdown to HTML, with XSS protection This library leverages existing high-performance libraries (attoparsec, blaze-html, text, and conduit), and should integrate well with existing codebases.
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A type class for Matchable Functors. This package defines a type class Matchable, providing zipMatch operation for zipping two values of any container-like functor type.
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Please see the README on GitHub at https://github.com/NorfairKing/mergeful#readme
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Please see the README on GitHub at https://github.com/NorfairKing/mergeless#readme
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mersenne-random-pure64 Generate high quality pseudorandom numbers purely using a Mersenne Twister The Mersenne twister is a pseudorandom number generator developed by Makoto Matsumoto and Takuji Nishimura that is based on a matrix linear recurrence over a finite binary field. It provides for fast generation of very high quality pseudorandom numbers. The source for the C code can be found here: http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt64.html This library provides a purely functional binding to the 64 bit classic mersenne twister, along with instances of RandomGen, so the generator can be used with System.Random. The generator should typically be a few times faster than the default StdGen (but a tad slower than the impure 'mersenne-random' library based on SIMD instructions and destructive state updates.