XML Streaming

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Since version 4.3, Qt provides two new classes for reading and writing XML: QXmlStreamReader and QXmlStreamWriter.

The QXmlStreamReader and QXmlStreamWriter are two new classes provided in Qt 4.3 and later. A stream reader reports an XML document as a stream of tokens. This differs from SAX as SAX applications provide handlers to receive XML events from the parser whereas the QXmlStreamReader drives the loop, pulling tokens from the reader when they are needed. This pulling approach makes it possible to build recursive descent parsers, allowing XML parsing code to be split into different methods or classes.

QXmlStreamReader is a well-formed XML 1.0 parser that excludes external parsed entities