#include <QCoreApplication>
#include <QDebug>
#include <QDomDocument>

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

    QString value = "row:23212,col:5234";
    QRegExp exp("(\\d+)");
    auto offset = exp.indexIn(value);
    qDebug() << exp.cap(1);

    exp.indexIn(value, offset + exp.cap(1).length());
    qDebug() << exp.cap(1);

    return a.exec();
}