SAX.setDocumentLocator()
SAX.startDocument()
SAX.internalSubset(doc, , )
SAX.attributeDecl(doc, a1, 8, 1, 1 2, ...)
SAX.elementDecl(doc, 3, ...)
SAX.externalSubset(doc, , )
SAX.startElementNs(doc, NULL, NULL, 0, 1, 1, a1='1 2...', 3)
SAX.endElementNs(doc, NULL, NULL)
SAX.endDocument()
