[XeTeX] Redefining \em and \emph

[Philip Taylor (Webmaster, Ret'd)]

Will Robertson wrote:

> I'd write something like
>
> \let\oldemph\emph
> \renewcommand\emph{%
> \if at RTL \expandafter\aemph \else \expandafter\oldelse \fi

or better still, ... \expandafter \oldemph \fi %!
** Phil.