anchor.diff:     (
         dscp_types += dscp_type
      )+ NEWLINE
  +;
  +
  +cmm_exception
  +:
  +   EXCEPTION ~NEWLINE+ NEWLINE
   ;
   
   cmm_mpls
  
positive.code: :
     CLASS_MAP
     (
        MATCH_ALL
        | MATCH_ANY
        | TYPE ~NEWLINE
     )? name = variable NEWLINE s_class_map_tail*
  ;
  
  
negative.code:    | cmm_cos
     | cmm_default_inspection_traffic
     | cmm_dscp
     | cmm_exception
     | cmm_mpls
     | cmm_non_client_nrt
     | cmm_port
     | cmm_protocol
     | cmm_redirect
     | cmm_qos_group
  ;
  
  