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
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