anchor.diff:    : '('
       (
         options {
  -	generateAmbigWarnings=false;
  +		generateAmbigWarnings=false;
         }
       :
         { count > 0 }? ')' { count--; }
  
positive.code:   ;
  
  protected
  MESSAGE
      :  '"' (ESC|~('"'|'\\'))* '"'
  	//	{ System.out.println("Assert: got MESSAGE #" + text + "#"); }
      ;
  
  protected
  
negative.code:     testLiterals=false;    // don't automatically test for literals
      k=4;                   // four characters of lookahead
      filter=true; //ignore things we can't match
  	defaultErrorHandler = false;     // generate parser error handlers
  }
  
  {
  