@haskell/parsec
Monadic parser combinators
@haskell/mtl
Monad classes for transformers, using functional dependencies
@haskell/base
Core data structures and operations
@haskell/array
Mutable and immutable arrays
@hackage/numbers
Various number types
@hackage/monad-loops
Monadic loops
@hackage/list-tries
Tries and Patricia tries: finite sets and maps for list keys