Patlac--Xml2cpp is a totally customizable code generator that generates classes (c++ for now) automatically from a xsd schema. Classes are described in google-ctemplate files and a xml options file allow precise definition of projects.
SaxMagique is a c++ library that offers an API for creating a saxparser.
It is intended to be the simplest way theoretically possible to create a complex saxparser. It build-up the [start|end]Element and characters handlers needed by expat.