[Qt-interest] QString doesn't print anything with qDebug

[Elliot Smith]

On Wed, 2010-12-01 at 12:22 +0000, Anisha Kaul wrote:
> 
> I wrote a small code to print the tag names, and no characters EXCEPT THE SPACES get shown up when I run it.
> The relevant (successfully compiled) code is presented here:

My guess is it's printing the whitespace characters inside each element,
before the next element start tag is encountered. If you did more
readNext() calls, you'd probably eventually see some non-whitespace,
non-text elements.

I think you want something like this if you want to see the (start) tag
names:

################################################################
#include <QtCore/QCoreApplication>
#include <QFile>
#include <QXmlStreamReader>
#include <QDebug>

int main(int argc, char *argv[])
{
  QFile *objQFile    = new QFile ("config.xml");

  if (objQFile->open(QIODevice::ReadOnly) == false)
  {
    qDebug() << "\nError: Unable to open the XML file! Verify the file's
existence and permissions\n\n";
    exit (1);
  }

  QXmlStreamReader objQXmlReader(objQFile);

  while (!objQXmlReader.atEnd())
  {
    objQXmlReader.readNext();

    if (objQXmlReader.isStartElement()) {
      qDebug() << objQXmlReader.name().toString();
    }
  }

  exit (0);
}
################################################################

You can do more testing of the type of element in the while() loop if
required, but the code above prints out just the start tags for each
element.

Elliot

-- 
Elliot Smith
Intel Open Source Technology Centre

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