some alternatives and similar packages
Based on the "Data" category.
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streaming
An optimized general monad transformer for streaming applications, with a simple prelude of functions -
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text-icu
This package provides the Haskell Data.Text.ICU library, for performing complex manipulation of Unicode text. -
InfluxDB - Power Real-Time Data Analytics at Scale
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README
some
This library defines several versions of an existential type 'Some', which works like this datastructure:
data Some f where
Some :: f a -> Some f
and operations to work with it.
However, due to GHC issue #1965, the direct implementation of this datastructure is less efficient than it could be. As a result, this library uses a more complex approach that implements it as a newtype, so there's no runtime overhead associated with wrapping and unwrapping Some values.
To use the recommended implementation, import Data.Some. If you need to ensure that you are definitely using the newtype implementation, import Data.Some.Newtype. By default, these are the same, but this can be changed via a Cabal flag.