Re: PROPOSAL: classes for traversals

This seems like a solid, worthwhile proposal to me as well. In fact, I will start using this in new code, regardless of its acceptance into the library. Jacques Ross Paterson wrote:

Conor McBride and I would like to propose some new classes for traversals of containers, based around applicative functors (the abstraction formerly known as idioms):

http://www.soi.city.ac.uk/~ross/traversals/

They are proposed for the base package, and would replace FunctorM.

Comments most welcome.

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