Special Character Validation

IknowQT

I want to do special character validation.
When creating a folder, you need to validate the name.
There are special characters that are limited when creating folders in Windows.

QString v("[^\\\/:*?\"<>|]");
this->setValidator(new QRegExpValidator(QRegExp(v)));

I wrote the code like this, but no characters are input.
Is there a way to disable only special characters?

IknowQT

@IknowQT

	QString v("[^\\\\/`~!@#$%^&*:*?\"<>|.]*");
	this->setValidator(new QRegExpValidator(QRegExp(v)));

IknowQT

@IknowQT

	QString v("[^\\\\/`~!@#$%^&*:*?\"<>|.]*");
	this->setValidator(new QRegExpValidator(QRegExp(v)));

JonB

@IknowQT
It doesn't matter, but why do you start your regular expression with [^\\\\? That is 2 literal backslashes, the second one achieves nothing inside [^. For readability/simplicity, might as well be "[^\\/...]". You also have * listed twice. And at least some of your excluded characters are allowed in Windows file/directory names, such as, say, ! or @. You may forbid them if that is what you wish, but just be aware they are not forbidden characters. A list of genuinely illegal characters (there are only 9 disallowed punctuation ones --- oh, that is what you had in your first attempt) can be found at e.g. https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions. There are also further rules than just illegal characters, e.g. "The filename can't end with a space or a period".

It is a shame you persist with QRegExp stuff. Unless you are using a pretty old Qt version, you would be better moving to QRegularExpression, and will require to do so if you upgrade.

Solved Special Character Validation