code: public String getCompleteValue() {
  	StringBuffer buf = new StringBuffer();
  	buf.append("$(");
  	buf.append(value);
  	buf.append(")");
  	if (concatValue != null) {
  	    buf.append(concatValue.getCompleteValue());
  	}
  	return buf.toString();
      }
docs: Returns a complete string representation of this
  value.
  
  @return a complete string representation of this
  value.