SAX.setDocumentLocator()
SAX.startDocument()
SAX.startElementNs(element, NULL, 'http://example.org/ns/1', 2, xmlns:rng='http://example.org/ns/1', xmlns='http://example.org/ns/1', 1, 0, name='foo"...', 3)
SAX.characters(
  , 3)
SAX.startElementNs(empty, NULL, 'http://example.org/ns/1', 0, 0, 0)
SAX.endElementNs(empty, NULL, 'http://example.org/ns/1')
SAX.characters(
, 1)
SAX.endElementNs(element, NULL, 'http://example.org/ns/1')
SAX.endDocument()