anchor.diff:        | (NSSA_EXTERNAL DEC?)
       )
     )?
  -  (ROUTE_MAP rm = VARIABLE)?
  +  (ROUTE_MAP rm = variable)?
     NEWLINE
   ;
   
   eos_rbir_rip
   :
  -  RIP (ROUTE_MAP rm = VARIABLE)? NEWLINE
  +  RIP (ROUTE_MAP rm = variable)? NEWLINE
   ;
   
   eos_rbir_static
   :
  -  STATIC (ROUTE_MAP rm = VARIABLE)? NEWLINE
  +  STATIC (ROUTE_MAP rm = variable)? NEWLINE
   ;
   
   eos_rbi_router_id
  
positive.code: // Defining a peer group
  eos_rbi_peer_group
  :
    name = VARIABLE
    (
      (PEER_GROUP | PEER GROUP) NEWLINE
      | eos_rbi_neighbor_common
  
negative.code: 
  eos_rbinc_password
  :
    PASSWORD (encrypt_level = DEC)? variable NEWLINE
  ;
  
  eos_rbinc_remote_as
  