1 1)Copy Parser.jjt in a dedicated directory.
   2 
   3 2) Grammar modificatiobns:
   4 Grammar located in file Parser.jjt :
   5 
   6 3) Command :
   7 /usr/lang/JAVA/JavaCC_2.0/bin/jjtree Parser.jjt
   8 /usr/lang/JAVA/JavaCC_2.0/bin/javacc Parser.jj
   9 
  10 4) Files to copy back in IPAcl directory:
  11 If you added new node (eg :IpV6Address()) copy the JDM file (eg:JDMIpV6Address.java)
  12 In any cases copy back (These files must be checkedout in IPAcl directory):
  13 ASCII_CharStream.java
  14 JJTParserState.java
  15 ParseException.java
  16 Parser.java
  17 ParserConstants.java
  18 ParserTokenManager.java
  19 ParserTreeConstants.java
  20 TokenMgrError.java
  21 
  22 5) You need to modify any JDM files you copied back. Lauch the compilation and you will see what is wrong.
  23 Have a look to similar nodes in order to see how to modify. Some protected methods have to be overloaded.
  24 
  25 6) Once your updates are running, copy back:
  26 Parser.jj
  27 Parser.jjt
  28 
  29 7) DONE.