QT. Read a configuration file into a Hashtable

readConfigFile.cpp

/*
Read a configuration file with  key = value pairs and [sections] into a Hash table.

sample config file:

[SYSTEM]
key1 = value
key2 = value

[NETWORK]
key1 = value
key4 = value

The resulting hash table will contain the following pairs:

SYSTEM_key1 = value
SYSTEM_key2 = value
NETWORK_key1 = value
NETWORK_key4 = value

*/

QHash<QString, QString> Utils::getConfiguration(const QString &source)
{
    QHash<QString, QString> config;
    QFile inputFile(source);
    if (inputFile.open(QIODevice::ReadOnly))
    {
        QTextStream in(&inputFile);
        QString currentLabel = "";
        QStringList toks;
        while (!in.atEnd())
        {
            QString line = in.readLine();
            line = line.trimmed();
            if(line.length() > 0){
                if(line.indexOf("[") == 0){
                    currentLabel = line.replace(QRegExp("[\\[\\]]"),"");
                }else{
                     toks = line.split("=");
                     if(toks.length() == 2){
                        QString key =  toks[0].trimmed();
                        if(currentLabel.length() > 0){
                           key = currentLabel + "_" + key;
                        }
                        config.insert(key,toks[1].trimmed());
                     }
                }
            }
        }
        inputFile.close();
    }
    return config;
}