QRegExp progblem

[high_flyer]

Hi,

I have the following code, which should find all occorences of '_' which is followed by a number, and replace it with a '.' (dot).
But nothing is being replced...
I guess my QRegExp is wrong, but from reading the docs, I don't understand why...

Thanks.

int main(int argc, char *argv[])
{
        //Q_INIT_RESOURCE(application);
 
        QApplication app(argc, argv);
        QRegExp re("_(?=\d+)");
        QFile ifile("marquard.csv");
        QFile ofile("marqurd_new.cvs");
        ifile.open(QIODevice::ReadOnly);
        ofile.open(QIODevice::WriteOnly);
        QTextStream istream(&ifile);
        QTextStream ostream(&ofile);
        QString text;
        istream>>text;
        text.replace(re,".");
        ostream<<text;
        ifile.close();
        ofile.close();
        return app.exec();
}

int main(int argc, char *argv[])
{
        //Q_INIT_RESOURCE(application);

        QApplication app(argc, argv);
        QRegExp re("_(?=\d+)");
        QFile ifile("marquard.csv");
        QFile ofile("marqurd_new.cvs");
        ifile.open(QIODevice::ReadOnly);
        ofile.open(QIODevice::WriteOnly);
        QTextStream istream(&ifile);
        QTextStream ostream(&ofile);
        QString text;
        istream>>text;
        text.replace(re,".");
        ostream<<text;
        ifile.close();
        ofile.close();
        return app.exec();
}

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[danadam]

You need two backslashes:

QRegExp re("_(?=\\d+)")

QRegExp re("_(?=\\d+)")

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It works for me:

danadam@peasant18]$ cat a.txt
aaaa_3dfd
danadam@peasant18]$ cat b.txt
aaaa.3dfd

danadam@peasant18]$ cat a.txt
aaaa_3dfd
danadam@peasant18]$ cat b.txt
aaaa.3dfd

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