private bool checkEntityStart(DataBlock dataBlock)
 {
     string relationChild;
     string name = dataBlock.eatShortString();
     if (dataBlock.eatPlausibleString(out relationChild) == false)
         return false;
     if (relationChild != "")
     {
     //		if (eatPlausibleString(out relationParent) == false)
     //		return false;
     }
     string description;
     string indexfilename;
     if (dataBlock.eatPlausibleString(out description, false) == false)
         return false;
     if (dataBlock.eatPlausibleString(out indexfilename, false) == false)
         return false;
     return description.EndsWith(".ptr") ||
         indexfilename.EndsWith(".ptr");
 }