On Wed, Dec 05, 2018 at 02:47:26PM +0000, John Was wrote: > Ah, another quirk of LaTeX.
Of TeX. As you can see in your own example: > \def\overstrike#1#2{\setbox0=\hbox{#1}\setbox1=\hbox{#2}\copy0 > \kern -0.5\wd0 \kern -0.5\wd1 \copy1 \kern -0.5\wd1 \kern 0.5\wd0} the arguments are surrounded by curly braces in the macro definition. With the definition you wrote: >>> \def\Textit#1{{\italictrue \textit #1}} \textit would use only the first token of #1 at the end of the definition. This has nothing to do with LaTeX macros or syntax. Best, Arthur -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex