With XMLTransformer you can bind Smalltalk code to any XML element. You can transform a XML into any other XML or finally in some other format ... Sound, Html, Pdf ... what you think of :) You can bind XML namespaces to a namespace class. You can bind XML elements to methods in a namespace class.
After installing take a look at the examples and class comments in XMLT (Category XML-Transformer).
Todo: - I have to create some example namespaces (Simplified Docbook). - Namespaces should be able to get parsed several times. - I need better solutions to avoid recursion.