SAX.setDocumentLocator()
SAX.startDocument()
SAX.internalSubset(doc, , )
SAX.elementDecl(doc, 1, ...)
SAX.externalSubset(doc, , )
SAX.startElementNs(doc, NULL, NULL, 0, 0, 0)
SAX.endElementNs(doc, NULL, NULL)
SAX.endDocument()
