I want to add a extension to the file name a user chooses. Lets assume the piece of code attached. Lets also assume that the user chooses to save as "html", and he chooses the filename "file1".

I want to add to the filename, the "html" extension. However, on my code the variable sf contains the full string showed at the bottom 'HTML Files(*.html *.htm)' and I just want "html".

I can handcraft something myself, like having a hash, and creating the string to be passed to the QFileDialog::getSaveFileName call, but I am hoping for a better tirck.


Qt Code: 
  1. static QString sf;
  2. 	QString s = QFileDialog::getSaveFileName(
  3. 		this,
  4. 		"Choose a file to save to",
  5. 		"",
  6. 		"Text files (*.txt *.utf8);; HTML Files(*.html *.htm)",
  7. 		&sf
  8. 	);
  9.  
  10. 	if (s.isEmpty())
  11. 		return;
  12.  
  13. 	bool status;
  14. 	QString s_lower = s.toLower();
  15.  
  16. 	// what if the users did not specify a suffix...?
  17. 	QFileInfo f( s );
  18. 	if (f.suffix().isEmpty())
  19. 	{
  20. 		//
  21. 		qDebug("no suffix, adding %s", qPrintable( sf ) );
  22. 	}
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