NSTokenField with mixed token/string input, possible?

Question

When entering an invalid email in Mail\'s NSTokenField one get\'s this (a mix of token and plain string values):

<

Answer 1

You need to implement the delegate method tokenField:styleForRepresentedObject: to return either NSRoundedTokenStyle for tokens or NSPlainTextTokenStyle for other text. The represented object for an token is the token string itself, unless your delegate returns other objects.

This should do the trick for your case:

- (NSTokenStyle)tokenField:(NSTokenField *)tokenField
 styleForRepresentedObject:(id)representedObject
{
    if ([representedObject rangeOfString: @"%["].location == 0) {
        return NSRoundedTokenStyle;
    } else {
        return NSPlainTextTokenStyle;
    }
}