Haskellari

Haskellari is a collection of Haskell libraries maintained by Oleg Grenrus with help of Andrew Lelechenko and others.

These libraries are (a) largely feature-complete and (b) very dependency light. They are reasonably useful utilities, sitting somewhere between core libraries and heavily-specialised software.

The libraries are in haskellari GitHub organization and include

• assoc — swap and assoc: Symmetric and Semigroupy Bifunctors
• binary-instances — Common Binary instances
• binary-orphans — Orphan instances for binary
• cabal-doctest — A Setup.hs helper for doctest running
• edit-distance — Edit distance library for Haskell
• functor-classes-compat — Data.Functor.Classes instances for core packages
• integer-logarithms — Integer logarithms
• lattices — Fine-grained lattice primitives for Haskell
• lukko — File locking
• microstache — Mustache templates for Haskell. microstache to stache is what parsec is to megaparsec
• OneTuple — Singleton Tuple
• postgresql-libpq — Low-level Haskell bindings for libpq
• postgresql-simple — Mid-level client library for accessing PostgreSQL from Haskell
• quickcheck-instances — Instances for QuickCheck classes
• splitmix — Pure Haskell implementation of SplitMix pseudo-random number generator
• these An either-or-both data type. (also `semialign` and `monad-chronicle` packages)
• time-compat — Compatibility package for time
• tree-diff — Diffing of (expression) trees