QString arg

I want to use QString to produce something like following:

Quote:

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This is number 99.

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I should note that i want to be able to change it to the following if needed:

Quote:

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This_is_number_99.

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or this one:

Quote:

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This-is-number-99.

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in which spaces are dynamic, so I used this code:

Code:

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QString test=" ";
QMessageBox::information(this,"Testing...",tr("This%1is%1number%199.").arg(test));

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the problem is that, because %1 is followed by another number, it does not work as expected, please someone shows me a way to solve this,

any help is appreciated.

Code:

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QMessageBox::information(this,"Testing...",tr(QString("This is number %1.").arg(99)));

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But you can also do:

Code:

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QMessageBox::information(this,"Testing...",tr(QString("This is number ")+QString::number(99)));

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Thanks for your reply, but I think you didn't understand what I mean,

I want SPACES to be variable and that number is static!!

please someone helps if there is a way...

problem is not the number, problem is %1 followed by a number!

That's what high_flyer said applied to your code:

Code:

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QString test=" ";
QMessageBox::information(this,"Testing...",tr("This%1is%1number%1%2.").arg(test).arg(99));
 
// or
 
QString test=" ";
QMessageBox::information(this,"Testing...",tr("This%1is%1number%1.").arg(test)+QString::number(99));

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Quote:

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Originally Posted by faldżip

That's what high_flyer said applied to your code:

Code:

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QString test=" ";
QMessageBox::information(this,"Testing...",tr("This%1is%1number%1%2.").arg(test).arg(99));
 
// or
 
QString test=" ";
QMessageBox::information(this,"Testing...",tr("This%1is%1number%1.").arg(test)+QString::number(99));

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Thanks for your help,

thats a nice way, but I was looking for a more convenience way, like specifying {%1} or %{1} or similar things.

so there is no such way,

again thanks for your reply.

Another thing which came to my mind is that maybe you can use QString::split() and QStringList::join():

Code:

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QString test("_");
QString result = QString("This is number 99.").split(' ').join(test);
// this should give result = "This_is_number_99"

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Why not just

Code:

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QString txt = "This is text with spaces";
txt.replace(" ", "_");

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Quote:

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Originally Posted by franz

Why not just

Code:

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QString txt = "This is text with spaces";
txt.replace(" ", "_");

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You're right... -_-'
:D sometimes the simplest solution is the last one you are thinking of :]