XF 1.3 Regular expressions Greek characters only

[zastavra]

Hello,

I'd like my members to use Greek characters only, in a certain custom field. What's the regular expressions that I have to use?

Thanks.

 

[Jake Bunce]

Custom user fields have a "regular expression" option. Here is an example of a regex like what you want:

http://xenforo.com/community/threads/username-validation-regex.24291/page-2#post-345455

Basically you need to explicitly list your allowed characters.