SAX.setDocumentLocator()
SAX.startDocument()
SAX.comment( comment before the DTD )
SAX.internalSubset(doc, , )
SAX.elementDecl(doc, 2, ...)
SAX.externalSubset(doc, , )
SAX.comment( comment after the DTD )
SAX.startElement(doc)
SAX.endElement(doc)
SAX.endDocument()