Before revision:  In this article  , we  take a closer look at  various existing mapped WENO schemes in references to obtain a general formula for their mapping functions that allows the extension of the OP criterion to all existing mapped WENO schemes .
After revision:  In this article , we take a closer look at various existing mapped WENO schemes and devise a general formula for their mapping functions that allows the extension of the OP criterion to all existing mapped WENO schemes .