QSettings, my own format of config-file

[joshlareau]

Here is my solution:

bool readXmlFile( QIODevice& device, QSettings::SettingsMap& map )
{
	QXmlStreamReader xmlReader( &device );
 
	QString currentElementName;
	while( !xmlReader.atEnd() ) 
	{
xmlReader.readNext();
		while( xmlReader.isStartElement() )
		{
			if( xmlReader.name() == "SettingsMap" )
			{
                                xmlReader.readNext();
				continue;
			}
 
			if( !currentElementName.isEmpty() )
			{
				currentElementName += "/";
			}
			currentElementName += xmlReader.name().toString();
			xmlReader.readNext();
		}
 
		if( xmlReader.isEndElement() )
		{
			continue;
		}
 
		if( xmlReader.isCharacters() && !xmlReader.isWhitespace() )
		{
			QString key = currentElementName;
			QString value = xmlReader.text().toString();
 
			map[ key ] = value;
 
			currentElementName.clear();
		}
	}
 
	 if( xmlReader.hasError() )
	 {
		return false;
	 }
 
	return true;
}
 
bool writeXmlFile( QIODevice& device, const QSettings::SettingsMap& map )
{
	QXmlStreamWriter xmlWriter( &device );
	xmlWriter.setAutoFormatting( true );
 
	xmlWriter.writeStartDocument();
        xmlWriter.writeStartElement( "SettingsMap" );
 
	QSettings::SettingsMap::const_iterator mi = map.begin();
	for( mi; mi != map.end(); ++mi )
	{
		std::vector< std::string > groups;
		StringUtils::SplitList( mi.key().toStdString().c_str(), "/", &groups );
		foreach( std::string groupName, groups )
		{
			xmlWriter.writeStartElement( groupName.c_str() );
		}
 
		xmlWriter.writeCharacters( mi.value().toString() );
 
		foreach( std::string groupName, groups )
		{
			xmlWriter.writeEndElement();
		}
	}
 
        xmlWriter.writeEndElement();
	xmlWriter.writeEndDocument();
 
	return true;
}

bool readXmlFile( QIODevice& device, QSettings::SettingsMap& map )
{
	QXmlStreamReader xmlReader( &device );
	
	QString currentElementName;
	while( !xmlReader.atEnd() ) 
	{
xmlReader.readNext();
		while( xmlReader.isStartElement() )
		{
			if( xmlReader.name() == "SettingsMap" )
			{
                                xmlReader.readNext();
				continue;
			}

			if( !currentElementName.isEmpty() )
			{
				currentElementName += "/";
			}
			currentElementName += xmlReader.name().toString();
			xmlReader.readNext();
		}

		if( xmlReader.isEndElement() )
		{
			continue;
		}

		if( xmlReader.isCharacters() && !xmlReader.isWhitespace() )
		{
			QString key = currentElementName;
			QString value = xmlReader.text().toString();

			map[ key ] = value;

			currentElementName.clear();
		}
	}

	 if( xmlReader.hasError() )
	 {
		return false;
	 }

	return true;
}

bool writeXmlFile( QIODevice& device, const QSettings::SettingsMap& map )
{
	QXmlStreamWriter xmlWriter( &device );
	xmlWriter.setAutoFormatting( true );

	xmlWriter.writeStartDocument();
        xmlWriter.writeStartElement( "SettingsMap" );

	QSettings::SettingsMap::const_iterator mi = map.begin();
	for( mi; mi != map.end(); ++mi )
	{
		std::vector< std::string > groups;
		StringUtils::SplitList( mi.key().toStdString().c_str(), "/", &groups );
		foreach( std::string groupName, groups )
		{
			xmlWriter.writeStartElement( groupName.c_str() );
		}

		xmlWriter.writeCharacters( mi.value().toString() );

		foreach( std::string groupName, groups )
		{
			xmlWriter.writeEndElement();
		}
	}

        xmlWriter.writeEndElement();
	xmlWriter.writeEndDocument();

	return true;
}

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I just saw that QString has a Split method. Use that instead of my StringUtils::SplitList call.