anchor.diff:      ip = IP_ADDRESS mask = IP_ADDRESS
       | prefix = IP_PREFIX
     )
  -  (ROUTE_MAP rm = VARIABLE)?
  +  (ROUTE_MAP rm = variable)?
     NEWLINE
   ;
   
   eos_rbi_network6
   :
  -  IPV6_PREFIX (ROUTE_MAP rm = VARIABLE)? NEWLINE
  +  IPV6_PREFIX (ROUTE_MAP rm = variable)? NEWLINE
   ;
   
   eos_rbi_no
  
positive.code: 
  eos_rbafnc_route_map
  :
    ROUTE_MAP name = VARIABLE (IN | OUT) NEWLINE
  ;
  
  eos_rb_af_no_neighbor_common
  
negative.code: 
  eos_rbir_attached_host
  :
    ATTACHED_HOST (ROUTE_MAP rm = variable)? NEWLINE
  ;
  
  eos_rbir_connected
  :
    CONNECTED (ROUTE_MAP rm = variable)? NEWLINE
  ;
  
  eos_rbir_dynamic
  :
    DYNAMIC (ROUTE_MAP rm = variable)? NEWLINE
  ;
  
  eos_rbir_isis
  :
    ISIS
    (LEVEL_1 | LEVEL_2 | LEVEL_1_2)?
    (ROUTE_MAP rm = variable)?
    NEWLINE
  ;
  
  