anchor.diff:  private boolean enableDEC = true;
   private boolean enableACL_NUM = false;
   private boolean enableCOMMUNITY_LIST_NUM = false;
  +private boolean enableREGEX = false;
   private boolean _inAccessList = false;
   private boolean inCommunitySet = false;
   private boolean _foundry = false;
  
positive.code:    	}
     	enableIP_ADDRESS = true;
        enableDEC = true;
        enableACL_NUM = false;
        _inAccessList = false;
    }
  
negative.code: PLUS
  :
     '+'
  ;
  
  REGEX
  :
     '/' {enableREGEX}?
     (
        ~('/' | '\\')
        |
        ( '\\' '/')
     )* '/'
  ;
  
  RP_VARIABLE
  