[Solved] QRegExp for a repeated pattern?
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Does QRegExp support matching of repeated patterns? Let's consider a sequence of integers (some of which could be negative), separated by either a comma or a space. For example, 4,6,-28,10.
The QRegExp for an optional minus, 1+ digits and a separator (comma or space) would be
QRegExp pattern("-?[0-9]+[,\\s]");So I'd expect
QRegExp repeatedPattern("[-?[0-9]+[,\\s]]*");to be the version for the repeated pattern described above. I know nested regular expressions can be ambiguous, but in this case it is not.
To provide some context — I'm trying to constrain the input for a QLineEdit, using
ui->lineEdit->setValidator(new QRegExpValidator(pattern)); -
Hi,
Unless you're using Qt 4, you should change to QRegularExpression then:
ui->lineEdit->setValidator(new QRegularExpressionValidator(QRegularExpression("(-?\\d+[,\\s])+")));should do what you want.
Hope it helps
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Hi,
Unless you're using Qt 4, you should change to QRegularExpression then:
ui->lineEdit->setValidator(new QRegularExpressionValidator(QRegularExpression("(-?\\d+[,\\s])+")));should do what you want.
Hope it helps
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You're welcome !
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