Hello
Not a good example obviously - the macros are surrounded by braces in the
definition only because they are in an \hbox there. But the braces are
certainly needed in *usage*: \overstrike{b}{p} (to give a rough impression
of a thorn). But if you wanted a simple macro, say one that reversed two
arguments, you could have e.g.
\def\swap#1#2{#2#1}
with no extra braces aside from those needed to open and close the
definition. You would still need them in *usage*, of course.
But we're rather far from the original question by now! I hope the fake
italics are now working, however he is achieving them.
Best
John
On Wed, 5 Dec 2018 at 15:58, Arthur Reutenauer <
arthur.reutena...@normalesup.org> wrote:
> 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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