# File lib/rbot/irc.rb, line 1971
    def find_users(mask)
      nm = new_netmask(mask)
      @users.inject(UserList.new) {
        |list, user|
        if user.user == "*" or user.host == "*"
          list << user if user.nick.irc_downcase(casemap) =~ nm.nick.irc_downcase(casemap).to_irc_regexp
        else
          list << user if user.matches?(nm)
        end
        list
      }
    end