prednote

prednote helps you build a tree of predicates that you can apply to a list of items. It was written for Penny:

http://www.github.com/massysett/penny

but I also find it useful for dapi:

http://www.github.com/massysett/dapi

and so you might find it useful too.

prednote is on Github:

http://www.github.com/massysett/prednote

and Hackage:

http://hackage.haskell.org/package/prednote

prednote is licensed under the BSD license; see the LICENSE file.