# File lib/authlogic/regex.rb, line 33
    def self.email_nonascii
      @email_nonascii_regex ||= begin
        email_name_regex  = '[^[:cntrl:][@\[\]\^ \!\"#$\(\)*,/:;<=>\?`{|}~\\\]]+'
        domain_head_regex = '(?:[^[:cntrl:][@\[\]\^ \!\"#$&\(\)*,/:;<=>\?`{|}~\\\_\.%\+\']]+\.)+'
        domain_tld_regex  = '(?:[^[:cntrl:][@\[\]\^ \!\"#$&\(\)*,/:;<=>\?`{|}~\\\_\.%\+\-\'0-9]]{2,25})'
        /\A#{email_name_regex}@#{domain_head_regex}#{domain_tld_regex}\z/
      end
    end