The QXmlEntityResolver class provides an interface to
resolve external entities contained in XML data.
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Detailed Description
The QXmlEntityResolver class provides an interface to
resolve external entities contained in XML data.
If an application needs to implement customized handling for
external entities, it must implement this interface, i.e.
resolveEntity(), and register it with
QXmlReader::setEntityResolver().
See also the Introduction to SAX2.
See also QXmlDTDHandler, QXmlDeclHandler, QXmlContentHandler, QXmlErrorHandler, QXmlLexicalHandler and XML.
Member Function Documentation
QString QXmlEntityResolver::errorString () [pure virtual]
The reader calls this function to get an error string if any of
the handler functions returns FALSE.
bool QXmlEntityResolver::resolveEntity ( const QString & publicId, const QString & systemId, QXmlInputSource *& ret ) [pure virtual]
The reader calls this function before it opens any external
entity, except the top-level document entity. The application may
request the reader to resolve the entity itself (ret is 0) or
to use an entirely different input source (ret points to the
input source).
The reader deletes the input source ret when it no longer needs
it, so you should allocate it on the heap with new.
The argument publicId is the public identifier of the external
entity, systemId is the system identifier of the external
entity and ret is the return value of this function. If ret
is 0 the reader should resolve the entity itself, if it is
non-zero it must point to an input source which the reader uses
instead.
If this function returns FALSE the reader stops parsing and
reports an error. The reader uses the function errorString() to
get the error message.
This file is part of the Qt toolkit.
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