nsISAXDTDHandler in Firefox 2.0

 Receive notification of basic DTD-related events.

 If a SAX application needs information about notations and
 unparsed entities, then the application implements this interface
 and registers an instance with the SAX parser using the parser's
 setDTDHandler method. The parser uses the instance to report
 notation and unparsed entity declarations to the application.

 Note that this interface includes only those DTD events that the
 XML recommendation requires processors to report: notation and
 unparsed entity declarations.

 The SAX parser may report these events in any order, regardless
 of the order in which the notations and unparsed entities were
 declared; however, all DTD events must be reported after the
 document handler's startDocument event, and before the first
 startElement event. (If the LexicalHandler is used, these events
 must also be reported before the endDTD event.)

[scriptable, uuid(4d01f225-6cc5-11da-be43-001422106990)]

Methods

 Receive notification of a notation declaration event.

 It is up to the application to record the notation for later
 reference, if necessary; notations may appear as attribute values
 and in unparsed entity declarations, and are sometime used with
 processing instruction target names.

 At least one of publicId and systemId must be non-null. If a
 system identifier is present, and it is a URL, the SAX parser
 must resolve it fully before passing it to the application
 through this event.

 There is no guarantee that the notation declaration will be
 reported before any unparsed entities that use it.

 @param name The notation name.
 @param publicId The notation's public identifier, or null if none was
                  given.
 @param systemId The notation's system identifier, or null if none was
                  given.

void notationDecl(in AString name, in AString publicId, in AString systemId)

 Receive notification of an unparsed entity declaration event.

 Note that the notation name corresponds to a notation reported
 by the notationDecl event. It is up to the application to record
 the entity for later reference, if necessary; unparsed entities
 may appear as attribute values.

 If the system identifier is a URL, the parser must resolve it
 fully before passing it to the application.

 @param name The unparsed entity's name.
 @param publicId The entity's public identifier, or null if none was
                  given.
 @param systemId The entity's system identifier, or null if none was
                  given.
 @param notationName The name of the associated notation.

void unparsedEntityDecl(in AString name, in AString publicId, in AString systemId, in AString notationName)