http://www.saxproject.org Review of ''Book of SAX'' [http://www.unixreview.com/documents/s=7695/uni1037121722736/] [RS]: In another aspect, SAX (Simple API for XML) is a model of processing [XML] on the fly. A SAX parser like [expat] (available in [tdom]) goes through the XML input without keeping much state, and issues configurable callbacks for instance at the start or end of an XML element, or when it encounters a character data chunk.