Qt-interest Archive, August 2007
QXmlStreamReader: parsing a file being streamed over a network
Message 1 in thread
Hi,
I'm slightly confused as to the best/intended way to parse an XML file
as it's being downloaded over a network using QXmlStreamReader.
I've subclassed QXmlStreamReader and I'm using KIO from KDE so
whenever I get a data(KIO::Job* kiojob,const QByteArray& data) signal
I do addData(data) in the corresponding slot.
I'm thinking my reader should look something like this:
<code>
void TestXmlStreamReaderDownloader::doRead()
{
while (!atEnd()) {
readNext();
if(error() == PrematureEndOfDocumentError) {
waitForMoreData(); // this is the issue
}
if (isStartElement()) {
// random example XML parsing here
if (name() == "xml" && attributes().value("version") == "1") {
readXml();
}
else {
raiseError("not valid xml");
}
}
}
if(error() == NoError) {
emit finished();
}
else {
emit failed();
}
}
</code>
Any words of advice?
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Message 2 in thread
On Wednesday 01 August 2007 07:16:16 pm Gavin Beatty wrote:
> Hi,
>
> I'm slightly confused as to the best/intended way to parse an XML file
> as it's being downloaded over a network using QXmlStreamReader.
[...]
>
>
> Any words of advice?
Have a look at the rsslisting example, it does exactly this.
Matthias
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Message 3 in thread
On 02/08/07, Matthias Ettrich <ettrich@xxxxxxxxxxxxx> wrote:
> Have a look at the rsslisting example, it does exactly this.
I completely missed that fact. :-/
Pity about the example not having "context" in the XML ;)
Apologies and many thanks,
Gavin
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