Field Validation

Hello,

after searching for days for a solution on how to allow "&" in username field i am stuck!

I read that this is because of joomla username field restrictions
I read that this was solved on joomla next release.
I have tried the hundreds of regex codes that i found.
I have tested these regex codes on some regex testing sites proposed here.

The result is this...

I can enter $, #, @, whatever symbol i want in my username field, but not the "&".

By default there is a "Registration Forbidden Words" field in backend with the following value: http:,https:,mailto:,//.,<a,</a>,&#

Removed the "&" from the badwords value, but nothing changed!

I have seen several posts regarding username validation in the forum, but not a clear answer, so please tell me...

Is the forbidden words the reason of my problem?

If not...

What is the right regex code to allow letters, numbers, blank space and & un username field?

Thank you in advance...

I do not recommend using anything but alphanumeric characters in usernames. At any rate CB can not bypass Joomlas username or password validations. We've no limitations on username beyond those configured in the validation settings. Any further validation would be enforced by Joomla. Joomla does not allow for < > \ " ' % ; ( ) & characters in usernames.