DTDHandler

class DTDHandler

Receive notification of basic DTD-related events

Inheritance:

Public

Documentation

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.

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.

It is up to the application to store the information for future use (perhaps in a hash table or object tree). If the application encounters attributes of type "NOTATION", "ENTITY", or "ENTITIES", it can use the information that it obtained through this interface to find the entity and/or notation corresponding with the attribute value.

The HandlerBase class provides a default implementation of this interface, which simply ignores the events.
$Log: DTDHandler.hpp,v $ Revision 1.1.1.1 1999/11/09 01:07:44 twl Initial checkin Revision 1.2 1999/11/08 20:44:54 rahul Swat for adding in Product name and CVS comment log variable.

Constructors and Destructor DTDHandler() Default Constructor virtual ~DTDHandler() Destructor
The DTD handler interface

virtual void notationDecl( const XMLCh* const name, const XMLCh* const publicId, const XMLCh* const systemId )
Receive notification of a notation declaration event.
It is up to the application to record the notation for later reference, if necessary.

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

Throws:
SAXException Any SAX exception, possibly wrapping another exception.
Parameters:
name - The notation name.
publicId - The notation's public identifier, or null if none was given.
systemId - The notation's system identifier, or null if none was given.
See Also:
unparsedEntityDecl
AttributeList

virtual void unparsedEntityDecl( const XMLCh* const name, const XMLCh* const publicId, const XMLCh* const systemId, const XMLCh* const notationName )
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.

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

Throws:
SAXException Any SAX exception, possibly wrapping another exception.
Parameters:
name - The unparsed entity's name.
publicId - The entity's public identifier, or null if none was given.
systemId - The entity's system identifier (it must always have one).
notation - name The name of the associated notation.
See Also:
notationDecl
AttributeList
private Unimplemented constructors and operators DTDHandler(const DTDHandler&) Copy constructor void operator=(const DTDHandler&) Assignment operator

Direct child classes:: HandlerBase

See Also:: setDTDHandler
HandlerBase

alphabetic index hierarchy of classes

class DTDHandler

Inheritance:

Public

Documentation