Inherited by: QXmlFormatter
QXmlQuery query; query.setQuery("doc('index.html')/html/body/p"); QXmlSerializer serializer(query, myOutputDevice); query.evaluateTo(&serializer);
First it constructs a
querythat gets the first paragraph from document
index.html. Then it constructs an instance of this class with the
myOutputDevice. Finally, it
query, producing an ordered sequence of calls to the serializer’s callback functions. The sequence of callbacks transforms the query output to XML and writes it to
Declare namespaces when needed,
Use appropriate escaping, when characters can’t be represented in the XML,
Handle line endings appropriately,
Report errors, when it can’t serialize the content, e.g., when asked to serialize an attribute that is a top-level node, or when more than one top-level element is encountered.
If an error occurs during serialization, result is undefined unless the serializer is driven through a call to
If the generated XML should be indented and formatted for reading, use
- class PySide2.QtXmlPatterns.QXmlSerializer(query, outputDevice)¶
Constructs a serializer that uses the name pool and message handler in
query, and writes the output to
outputDevicemust be a valid, non-null device that is open in write mode, otherwise behavior is undefined.
outputDevicemust not be opened with
Textbecause it will cause the output to be incorrect. This class will ensure line endings are serialized as according with the XML specification.
QXmlSerializerdoes not take ownership of
- Return type:
Returns the codec being used by the serializer for encoding its XML output.
- Return type:
Returns a pointer to the output device. There is no corresponding function to set the output device, because the output device must be passed to the constructor. The serializer does not take ownership of its IO device.
Sets the codec the serializer will use for encoding its XML output. The output codec is set to
outputCodec. By default, the output codec is set to the one for
UTF-8. The serializer does not take ownership of the codec.
© 2022 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.