This is a Debian prepackaged version of the rxp validating XML parser. This package was put together by Joey Hess , using sources from: http://www.cogsci.ed.ac.uk/~richard/rxp.html The copyright is GPL (/usr/share/common-licenses/GPL) plus the following: Copyright (c) 1997-99 Richard Tobin, Language Technology Group, HCRC, University of Edinburgh. THE SOFTWARE IS PROVIDED `AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR OR THE UNIVERSITY OF EDINBURGH BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.