I want position information with AST node as IToken does(getLin(), getColumn()). How to achive that? Cheers. Jigang ___________________________________________________________ ÑÅ»¢1GÃâ·ÑÓÊÏä°Ù·Ö°Ù·ÀÀ¬»øÐÅ http://cn.mail.yahoo.com/