[XeTeX] newcommand with optional arguments

Will Robertson wspr81 at gmail.com
Tue Mar 4 01:39:20 CET 2008


On 04/03/2008, at 8:11 AM, Ross Moore wrote:

> Actually the \expandafter s  are not needed here.

There's also the package ifmtarg that provides a couple of useful  
(userlevel) commands for checking for empty arguments.
Generally in these sorts of cases I'll write something like

\def\@tempa{#1}
\ifx\@tempa\@empty ...

but if I recall correctly the ifmtarg package gives you an expandable  
command :)

Will
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