[Interest] QDateTime + QXmlStreamWriter on non-UTF8 compatible systems

[Thiago Macieira]

On quinta-feira, 21 de dezembro de 2017 20:49:33 -02 Scott Bloom wrote:
> When using the QXmlStreamWriter to write out an XML file, where one of the
> sections is a DateTime Field, and the system is non-UTF8 (Japanese in my
> customer case) the XML generated via
> 
> writer.writeCharacters( dateTime.toString() )
> 
> Produces XML that cant be read in via QXmlStreamReader

What is your Writer writing to?

If it's a QIODevice or QByteArray, then it does this:
        QByteArray bytes = encoder->fromUnicode(s);
        device->write(bytes)

If it's a string, it does:
        stringDevice->append(s);

(this is after escaping)

What is the XML it generates? We need to isolate the problem either in the 
Writer or in the Reader.

> Now, I am guessing, that I have to setup the writer with the proper codec
> via writer.setCodec( )

No need, as the default is UTF-8.

> How do I get the proper codec that will actually be needed to generate
> proper XML?

Ask for the codec for "UTF-8". Which is what QXmlStreamWriter is already 
doing.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center