the haskell uniplate library abstracts over common traversals and queries in a simple manner allowing the user to scrap their boilerplate code.

a more complete document on the uniplate class was published at the haskell workshop 2007 (http://www-users.cs.york.ac.uk/~ndm/uniplate/), along with a video presentation, and the associated thesis chapter.

this package provides a library for the haskell programming language. see http://www.haskell.org/ for more information on haskell.