Home

QtLibxmlReader Class Reference

The QtLibxmlReader class is a SAX2 parser based on libxml2, with a QXmlReader interface. More...

 #include <QtLibxmlReader>

Inherits QXmlReader.

• List of all members, including inherited members
• Obsolete members

Public Functions

• QtLibxmlReader ()
• virtual ~QtLibxmlReader ()
• virtual QXmlDTDHandler * DTDHandler () const
• virtual QXmlContentHandler * contentHandler () const
• virtual QXmlDeclHandler * declHandler () const
• virtual QXmlEntityResolver * entityResolver () const
• virtual QXmlErrorHandler * errorHandler () const
• virtual bool feature ( const QString & name, bool * ok = 0 ) const
• virtual bool hasFeature ( const QString & name ) const
• virtual bool hasProperty ( const QString & name ) const
• virtual QXmlLexicalHandler * lexicalHandler () const
• virtual bool parse ( const QXmlInputSource * input )
• bool parse ( const QString & uri )
• virtual void * property ( const QString & name, bool * ok = 0 ) const
• virtual void setContentHandler ( QXmlContentHandler * handler )
• virtual void setDTDHandler ( QXmlDTDHandler * handler )
• virtual void setDeclHandler ( QXmlDeclHandler * handler )
• virtual void setEntityResolver ( QXmlEntityResolver * resolver )
• virtual void setErrorHandler ( QXmlErrorHandler * handler )
• virtual void setFeature ( const QString & name, bool value )
• virtual void setLexicalHandler ( QXmlLexicalHandler * handler )
• virtual void setProperty ( const QString & name, void * value )

• 19 public functions inherited from QXmlReader

Detailed Description

The QtLibxmlReader class is a SAX2 parser based on libxml2, with a QXmlReader interface.

QtLibxmlReader is a SAX2 parser. Like QXmlSimpleReader, it inherits QXmlReader and therefore Qt's SAX API. Unlike QXmlSimpleReader, QtLibxmlReader uses libxml2 to do the actual parsing.

For an overview of differences between QtLibxmlReader and QXmlSimpleReader, see the overview.

For more information on Qt's SAX2 interface, see the documentation for QXmlReader and QtXmlSimpleReader.

Member Function Documentation

QtLibxmlReader::QtLibxmlReader ()

Constructs a QtLibxmlReader object.

QtLibxmlReader::~QtLibxmlReader ()   [virtual]

Destroys a QtLibxmlReader object.

QXmlDTDHandler * QtLibxmlReader::DTDHandler () const   [virtual]

Returns the DTD handler or 0 if none was set.

Reimplemented from QXmlReader.

See also setDTDHandler().

QXmlContentHandler * QtLibxmlReader::contentHandler () const   [virtual]

Returns the content handler or 0 if none was set.

Reimplemented from QXmlReader.

See also setContentHandler().

QXmlDeclHandler * QtLibxmlReader::declHandler () const   [virtual]

Returns the declaration handler or 0 if none was set.

Reimplemented from QXmlReader.

See also setDeclHandler().

QXmlEntityResolver * QtLibxmlReader::entityResolver () const   [virtual]

Returns 0. QXmlEntityResolver is not supported.

Instead, if the NOENT feature is set, libxml2 loads external entities from the local filesystem, or from the network via HTTP or FTP. If the NOENT feature is not set, reports all entity references with QContentHandler::skippedEntity().

Reimplemented from QXmlReader.

See also setEntityResolver(), property(), and setProperty().

QXmlErrorHandler * QtLibxmlReader::errorHandler () const   [virtual]

Returns the error handler or 0 if none is set.

Reimplemented from QXmlReader.

See also setErrorHandler().

bool QtLibxmlReader::feature ( const QString & name, bool * ok = 0 ) const   [virtual]

If the reader has the feature called name, the feature's value is returned. If no such feature exists the return value is undefined.

If ok is not 0: ok is set to TRUE if the reader has the feature called name; otherwise ok is set to FALSE.

Reimplemented from QXmlReader.

See also setFeature() and hasFeature().

bool QtLibxmlReader::hasFeature ( const QString & name ) const   [virtual]

Returns TRUE if the reader has the feature called name; otherwise returns FALSE.

Reimplemented from QXmlReader.

See also feature() and setFeature().

bool QtLibxmlReader::hasProperty ( const QString & name ) const   [virtual]

Returns TRUE if the reader has the property name; otherwise returns FALSE.

Reimplemented from QXmlReader.

See also property() and setProperty().

QXmlLexicalHandler * QtLibxmlReader::lexicalHandler () const   [virtual]

Returns the lexical handler or 0 if none was set.

Reimplemented from QXmlReader.

See also setLexicalHandler().

bool QtLibxmlReader::parse ( const QXmlInputSource * input )   [virtual]

Reads an XML document from input in and parses it. Returns FALSE if the parsing detects an error; otherwise returns TRUE.

Reimplemented from QXmlReader.

bool QtLibxmlReader::parse ( const QString & uri )

This is an overloaded member function, provided for convenience.

Reads an XML document from uri and parses it. uri may be a file name, or a HTTP or FTP url. Returns FALSE if the parsing detects an error; otherwise returns TRUE.

This function does not use QXmlInputSource. Instead, uri is passed directly to libxml2. This has several advantages:

• QXmlInputSource reads the whole document into memory. This function, on the other hand, parses the document in chunks.
• QXmlInputSource converts the document to UTF-16, which is then converted to UTF-8 by libxml2. This function converts directly from the document's encoding to UTF-8.

void * QtLibxmlReader::property ( const QString & name, bool * ok = 0 ) const   [virtual]

If the reader has the property name, this function returns the value of the property; otherwise the return value is undefined.

If ok is not 0 and the reader has the name property, ok is set to TRUE; otherwise ok is set to FALSE.

Reimplemented from QXmlReader.

See also setProperty() and hasProperty().

void QtLibxmlReader::setContentHandler ( QXmlContentHandler * handler )   [virtual]

Sets the content handler to handler.

Reimplemented from QXmlReader.

See also contentHandler().

void QtLibxmlReader::setDTDHandler ( QXmlDTDHandler * handler )   [virtual]

Sets the DTD handler to handler.

Reimplemented from QXmlReader.

See also DTDHandler().

void QtLibxmlReader::setDeclHandler ( QXmlDeclHandler * handler )   [virtual]

Sets the declaration handler to handler.

Reimplemented from QXmlReader.

See also declHandler().

void QtLibxmlReader::setEntityResolver ( QXmlEntityResolver * resolver )   [virtual]

Does nothing. QXmlEntityResolver is not supported. resolver is ignored.

Instead, if the NOENT feature is set, libxml2 loads external entities from the local filesystem, or from the network via HTTP or FTP. If the NOENT feature is not set, reports all entity references with QContentHandler::skippedEntity().

Reimplemented from QXmlReader.

See also entityResolver(), property(), and setProperty().

void QtLibxmlReader::setErrorHandler ( QXmlErrorHandler * handler )   [virtual]

Sets the error handler to handler. Clears the error handler if handler is 0.

Reimplemented from QXmlReader.

See also errorHandler().

void QtLibxmlReader::setFeature ( const QString & name, bool value )   [virtual]

Sets the state of the feature name to value:

If the feature is not recognized, it is ignored.

The following features are supported:

Reimplemented from QXmlReader.

See also feature() and hasFeature().

void QtLibxmlReader::setLexicalHandler ( QXmlLexicalHandler * handler )   [virtual]

Sets the lexical handler to handler.

Reimplemented from QXmlReader.

See also lexicalHandler().

void QtLibxmlReader::setProperty ( const QString & name, void * value )   [virtual]

Sets the property name to value. If the reader doesn't have the property nothing happens.

Reimplemented from QXmlReader.

See also property() and hasProperty().