QXmlDTDHandler 類

The QXmlDTDHandler class provides an interface to report DTD content of XML data. 更多...

頭: #include <QXmlDTDHandler>
qmake: QT += xml
繼承者: QXmlDefaultHandler

注意: 此類的所有函數 可重入 .

公共函數

virtual ~QXmlDTDHandler ()
virtual QString errorString () const = 0
virtual bool notationDecl (const QString & name , const QString & publicId , const QString & systemId ) = 0
virtual bool unparsedEntityDecl (const QString & name , const QString & publicId , const QString & systemId , const QString & notationName ) = 0

詳細描述

The QXmlDTDHandler class provides an interface to report DTD content of XML data.

If an application needs information about notations and unparsed entities, it can implement this interface and register an instance with QXmlReader::setDTDHandler ().

Note that this interface includes only those DTD events that the XML recommendation requires processors to report, i.e. notation and unparsed entity declarations using notationDecl () 和 unparsedEntityDecl () 分彆。

另請參閱 QXmlDeclHandler , QXmlContentHandler , QXmlEntityResolver , QXmlErrorHandler , QXmlLexicalHandler ,和 Introduction to SAX2 .

成員函數文檔編製

[虛擬] QXmlDTDHandler:: ~QXmlDTDHandler ()

Destroys the DTD handler.

[pure virtual] QString QXmlDTDHandler:: errorString () const

The reader calls this function to get an error string if any of the handler functions returns false .

[pure virtual] bool QXmlDTDHandler:: notationDecl (const QString & name , const QString & publicId , const QString & systemId )

The reader calls this function when it has parsed a notation declaration.

自變量 name is the notation name, publicId is the notation's public identifier and systemId is the notation's system identifier.

若此函數返迴 false the reader stops parsing and reports an error. The reader uses the function errorString () to get the error message.

[pure virtual] bool QXmlDTDHandler:: unparsedEntityDecl (const QString & name , const QString & publicId , const QString & systemId , const QString & notationName )

The reader calls this function when it finds an unparsed entity declaration.

自變量 name is the unparsed entity's name, publicId is the entity's public identifier, systemId is the entity's system identifier and notationName is the name of the associated notation.

若此函數返迴 false the reader stops parsing and reports an error. The reader uses the function errorString () to get the error message.