I was trying to today to test the (User Name Match Regular Expression) option on XF.
My forum is an Arabic one so I was trying to add a regex expression to allow the registration with Arabic letters only,
I used the following:
I trying to register after applying the above expression but I got an error: (A server error occurred. Please try again later.)
Is the Unicode expressions not supported by XF1.5.x or there is an error in my code.
Appreciate you help guys.