AutoDia is a modular application that parses source code, XML or data and produces an XML document in Dia format (or images via graphviz and vcg). Its goal is to be a UML / DB Schema diagram autocreation package. The diagrams its creates are standard UML diagrams showing dependancies, superclasses, packages, classes and inheritances, as well as the methods, etc of each class.

AutoDia supports any language that a Handler has been written for.

you can add your own parser or language handler in under 20 minutes if you have reasonable knowledge of perl and in an evening if you have basic perl skills.
If you can hack perl then you should also be able to create a new output format.