Hi Jingsong:

please can you check the project. It is about visualizing traversals.
The traversals are either specified using the strategy notation or
the static XPath notation.

Please propose a class dictionary for the subset of XPath that they should implement.
Make it small, including //, /, intersection, union, complement and .. (inverse of /).

See /project directory of course directory.

It is important that you implement a prototype of the plug-in before the students
start working on it. Focus on the XPath part.

I also would like you to give a lecture on Eclipse to the class covering 
how to write Eclipse plug-ins.
 
-- Karl