[tlug] Japanese Regex (Ruby on Rails)

[Patrick Niessen <tlug.niessen@example.com>]

Hi everyone,

I am trying to find the Japanese / Unicode equivalent for the
following Regular Expression, to verify web form input:

validates_format_of :screen_name,
  :with =>/^[A-Z0-9._]*$/i,
  :message => "must contain only letters, numbers and undescore %  or dots."

My guess is, that normal characters live within a defined range so I
suppose one only needs to check whether the submitted forms parameter
are within that range.

Thanks!

-- 
Patrick Niessen