How to pass regular expresion to QString.contains (reg expression) ??

Anonymous_Banned275

I am testing /learning how to use regular expression.
I like this code to match all ASCII characters as words .

When used like this ,
QRegularExpression re("[ -~]+");
it correctly matches first words in the inString

However when used in .contains it fails.
I have included two attempts to implement .contains with similar parameter passed.

I am asking for help to write passed regular expression correctly.
My syntax pass by compiler but does not work.

Please - no references to AI reg expression generators - they do not work when tested expression code is passed to Qt.

THANKS

        if(inString.contains(^[ -~]+$ ))
        {
            text = "Match ";
        }else
        {
            text = " No match ";
        }

        qDebug() << text;
        textDEBUG->append(text);

OR 

      if(inString.contains("[ -~]+"))
        {
            text = "Match ";
        }else
        {
            text = " No match ";
        }

        qDebug() << text;
        textDEBUG->append(text);

JonB

@AnneRanch

if(inString.contains(^[ -~]+$ ))

This will not compile as you are not passing it either a QString or a QRegularExpression. You will get a syntax error.

if(inString.contains("[ -~]+"))

This will compile. But because you don't pass any regular expression, only a plain string, it will look to see whether that literal string appears in your test string, which it won't.

You meant:

if(inString.contains(QRegularExpression("[ -~]+")))

which will tell you whether your string contains one or more ASCII characters.

That would be true if your string contains a mixture of ASCII and non-ASCII characters. If you want to "fail" on any non-ASCII characters (i.e. only succeed on all ASCII characters) you want something like:

if (QRegularExpression("^[ -~]+$").match(inString).hasMatch())