QRegExp for strings with numbers

[roseicollis]

Hi!

I need a regexp which accepts a string (maximum 30 characters/Slots) with:

- letters from A to Z (not Á or Ñ or Ë...)
- numbers
- spaces
- signs: . , -

No matter the order so valid examples are :

- Hello how are you
- Hi. My -name- is ... mm

I was trying with that but it just accepts letters and numbers:

QRegExp rx7("[A-Z0-9]{0,30}");
    QValidator *validator7 = new QRegExpValidator(rx7, this);
    myLineEdit->setValidator(validator7);

QRegExp rx7("[A-Z0-9]{0,30}");
    QValidator *validator7 = new QRegExpValidator(rx7, this);
    myLineEdit->setValidator(validator7);

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Thank you so much