Xtract: a `grep'-like tool for XML documents
Xtract is "Open Source" (see http://www.opensource.org/ ), which means its authors retain all rights over the software, but license it freely for your use, provided you do not restrict anyone else's use. You are licensed to use, distribute, or modify this software under the terms of the Gnu GPL. We give you no warranty, express or implied, about this software: use it at your own risk.
Development of Xtract was funded by Canon Research Centre Europe Ltd., and was undertaken in the Dept of Computer Science at the University of York, UK. Xtract re-uses some components written by other members of the Haskell language community. Hence, various modules are copyright to different people and/or organisations.
The official Xtract website is at http://www.cs.york.ac.uk/fp/Xtract/