DeepArrow

Arrows for "deep application"

http://haskell.org/haskellwiki/DeepArrow

Latest on Hackage:

0.4.0

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.

BSD-3-Clause licensed by Conal Elliott

Maintained by [email protected]

This library provides a framework for type-directed composition of value editors (non-syntactic transformations). The tools enable "deep function application" in two senses: deep application of functions and application of deep functions. These tools generalize beyond values and functions, via the DeepArrow subclass of the Arrow type class.

For more information see:

The project wiki page http://haskell.org/haskellwiki/DeepArrow
Application of deep arrows for composable interfaces in the TV library: http://haskell.org/haskellwiki/TV
The motivating idea and paper "Tangible Functional Programming": http://conal.net/papers/Eros

The primary module is Control.Arrow.DeepArrow. Examples in Control.Arrow.DeepArrow.Examples.

Note: Many of the type signatures use infix type operators (as in a~>b). In reading the documentation and code, be aware that infix operators bind more tightly than ->.