XML parsing problem using SAX2

[Shawn]

I'm want to parse a xml file twice or more times.
So I do it like this:

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
 
	w = new test();
	w->show();
 
	QFile file("Resources/substations.xml");
	QXmlInputSource inputSource(&file);
 
	QXmlSimpleReader reader1, reader2;
	Paser1 handler1;
	reader1.setContentHandler(&handler1);
	reader1.setErrorHandler(&handler1);
	reader1.parse(inputSource);
 
	Paser2  handler2;
	handler2.num_Vol = handler1.num_Vol;
	handler2.num_Trans = handler1.num_Trans;
	handler2.num_Bay = handler1.num_Bay;
	reader2.setContentHandler(&handler2);
	reader2.setErrorHandler(&handler2);
	reader2.parse(inputSource);
 
	a.connect(&a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()));
	return a.exec();
}

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);

	w = new test();
	w->show();
	
	QFile file("Resources/substations.xml");
	QXmlInputSource inputSource(&file);

	QXmlSimpleReader reader1, reader2;
	Paser1 handler1;
	reader1.setContentHandler(&handler1);
	reader1.setErrorHandler(&handler1);
	reader1.parse(inputSource);

	Paser2  handler2;
	handler2.num_Vol = handler1.num_Vol;
	handler2.num_Trans = handler1.num_Trans;
	handler2.num_Bay = handler1.num_Bay;
	reader2.setContentHandler(&handler2);
	reader2.setErrorHandler(&handler2);
	reader2.parse(inputSource);

	a.connect(&a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()));
	return a.exec();
}

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the error info: Parser error at line 1, column 1: unexpected end of file.
why? because the first time parsing reader1.parse(inputSource) seems OK, and that the 2 handler handle the same xml file.

any help would be appreciated.

[jpn]

Try calling QXmlInputSource::reset().

[Shawn]

I called file.seek(0) and it's OK
Any way, Thanks!

[jpn]

I called file.seek(0) and it's OK

I think QXmlInputSource::reset() would have done it "transparently" for you.

[Shawn]

hehe, Thank u very much~