How to retrieve / match - at least next "pair"? (regular expression )

Anonymous_Banned275

Here is my command result ,

I can "match" hcix with address , but only one pair.
Here is my reg expressions usage

QRegularExpression re("[hci[0-9]+\t[0-9A-F:]+]*");
QRegularExpression re("[hci[0-9]+\t[0-9A-F:]+]+");

both code matches only the first hcix / address

how do I modify the reg expression to match BOTH pairs?

At present I have only two hci devices / adapters but I will need more in future.

I did try AI reg expression generator but it did now work, several of them.

I basically need a syntax to [match hcix with its address ]
and then REPEAT for rest of the pairs - hcix and its address.

"Devices:\n\thci8\t00:50:B6:80:4D:5D\n\thci0\t00:15:83:15:A2:CB\n"
"Devices:\n\thci8\t00:50:B6:80:4D:5D\n\thci0\t00:15:83:15:A2:CB\n"
" SUCCESS test_contains Devices:Devices:\n\thci8\t00:50:B6:80:4D:5D\n\thci0\t00:15:83:15:A2:CB\n DEBUG TASK START Bluetooth "
" MATCH result "
"hci8\t00:50:B6:80:4D:5D"
" MATCH result "
" SCAN results hci8\t00:50:B6:80:4D:5D"

only the first pair is "matched"

JonB

@AnneRanch
If you are using QRegularExpression::match() that will match and return only the first match. To keep matching you need to use QRegularExpressionMatchIterator QRegularExpression::globalMatch(). That returns a QRegularExpressionMatchIterator, on which you iterate to return each of the matches, until it returns no more. Example code is given both in that topic and in Global Matching.

Anonymous_Banned275

@JonB Are you saying my iterator is the problem ?
I believe the "+"
[0-9A-F:]+

instruct the process to run multiple [0-9A-F:] "matches" ,
so I am under the impression I should be able to
instruct to run the entire
[hci[0-9]+\t[0-9A-F:]+]+
by adding the last "+" - multiple time

I am looking at this as - the "match" is the issue , not the iteration.
or
if there is no match , the iteration WILL have no choice but to fail .

       QRegularExpression re("[hci[0-9]+\\t[0-9A-F:]+]*");

        //QRegularExpression re("[0-9A-F:]+"); // picks from SUCCESS ? CCE
        QRegularExpressionMatch match = re.match(text);

        if (match.hasMatch()) { // matches all
            //text = " Has all match ";
            QStringList result = match.capturedTexts();
            text = " MATCH result ";
            qDebug() << text;
            qDebug() << result.at(0);
            text = " MATCH result ";
            qDebug() << text;
            QString item;
            foreach(item,result)
            {
                text = " SCAN  results ";
                text += item;
                qDebug() << text;
            }
        }
 qDebug() << text;

JonB

@AnneRanch said in How to retrieve / match - at least next "pair"? (regular expression ):

QRegularExpressionMatch match = re.match(text);

You are using QRegularExpression::match(), which returns the first match only. As I said, you need to change over to using QRegularExpression::globalMatch() to access all the matches of your regular expression in your input string, which is what you are looking for,. The example code at https://doc.qt.io/qt-6/qregularexpression.html#global-matching shows the code you need.

JonB

@AnneRanch
I have written the complete example code, giving what you want, at https://forum.qt.io/topic/152045/qt-regular-expresssion-example-how-to-use-it/10