anchor.diff:      }
       
       private void dumpTree(AST ast, String offset) {
  -    	dump(ast, offset);
  +        dump(ast, offset);
           for (AST node = ast.getFirstChild(); node != null; node = node.getNextSibling()) {
               dumpTree(node, offset+"\t");
           }
  
positive.code: 
  commandArgumentsGreedy[AST head]
  { 
  	AST prev = #head;
  }
      :
         
  
negative.code:  */
  commandArguments[AST head]
  {
      Token first = LT(1);
  }
      :
          commandArgument ( options {greedy=true;}: COMMA! nls! commandArgument )*
  