Parse problem with RegExpValidator in large binding

[SafaAlfulaij]

Sample code:

validator: {
    if (rootItem.validator == 'test')
        return RegExpValidator {}
    else if (rootItem.validator == 'int')
        return IntValidator {}
    else
        return undefined
}

I always get Expected token ';' on return RegExpValidator {} and Expected token '}' on else if (rootItem.validator == 'int')

I dont get problems if a string is returned (It just says that I can't assign a QString to a QValidator).

[SGaist]

Hi and welcome to devnet

AFAIK it should be:

return RegExpValidator {regExp: /''/}

[SafaAlfulaij]

@SGaist Thanks for your answer.
But RegExp works well if I used it as a simple binding (no curly brackets and an inline if..else statement).
And it is supported as the docs says: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions

[SGaist]

But you are using a RegExpValidator which is a QML type and the documentation of the regExp property explicitly state that you should pass a regular expression in JS syntax.

[SafaAlfulaij]

@SGaist I made an edit to the code (even though RegExp works for me). I get the same error with the new code.

[SGaist]

Ok, I think I misunderstood your original setup.

A cleaner way to do that would be to have a validatorName property on your item and you change the validator accordingly. You can then manipulate that property from your rootItem for example.

WARNING not tested

YourItem {
    id: yourItem

    property str validatorName: "test"

    onValidatorNameChanged: {
        if (validatorName == "int")
            validator = intval;
        else if (validatorName == "test")
            validator = regex;
        // etc
       }
       IntValidator { id: intval  }
       RegExpValidator { id: regexp; regExp: /""/ }
}

[SafaAlfulaij]

@SGaist Thanks a dozen! It worked! :)