# File lib/rbot/botuser.rb, line 447
      def permit?(cmd, chan=nil)
        if chan
          k = chan.to_s.to_sym
        else
          k = :*
        end
        allow = nil
        pt = @perm.merge @perm_temp
        if pt.has_key?(k)
          allow = pt[k].permit?(cmd)
        end
        return allow
      end