[Zope] Cataloging xml files

Hello, For a new project, I'd like to use pure xml files in zope to store metainformation about media files. For example, I would have "picture.jpg", and I'd like to store - author - licence - keywords etc... about this information into picture.jpg.xml Both files stored in zope. Then, would it be possible with the current zope xml integration to catalog the xml file and search for a particular media made by a particular author ? In other word, is it possible to catalog xml files in zope, and map xml tags to zcatalog metadata right now ? Philippe