On Wed, Aug 10, 2022 at 2:49 AM Gavin Smith <[email protected]>
wrote:
> > If I do
> >
> > @inlinefmt{tex, {\rm Ai}(x)}
> >
> > The output is "\rm Ai(x)" in a normal roman font.
>
> A workaround is to use a block conditional instead:
>
> @iftex
> @math{{\rm Ai}(x)
> @end iftex
>
> This appears to produces good results but you would have to try it in
> your document to be sure. If you don't want an extra space to appear then
> you need to use
>
> @iftex
> @math{{\rm Ai}(x)@c
> @end iftex
>
> to comment out the newline.
>
Ah, this is great! I'd previously been using block conditionals, but there
was always an extra space, which meant the inline formulas followed by a
period had an extra space. That's why I was thinking of using @inlinefmt
for this.
And previously I was also doing
@tex
${\rm Ai}(x)$
@end tex
but @iftex seems nicer. since I can add @math{} around it.
>
> The reason that the texinfo.tex implementation is flawed is that when
> @inlinefmt reads its arguments, \ is not an escape character, and it
> is not reinterpreted after checking the conditional. This shows
> a possible fix:
>
> --- a/doc/texinfo.tex
> +++ b/doc/texinfo.tex
> @@ -3343,7 +3343,7 @@ $$%
> \long\def\inlinefmt#1{\doinlinefmt #1,\finish}
> \long\def\doinlinefmt#1,#2,\finish{%
> \def\inlinefmtname{#1}%
> - \ifx\inlinefmtname\outfmtnametex \ignorespaces #2\fi
> + \ifx\inlinefmtname\outfmtnametex \ignorespaces \scantokens{#2}\fi
> }
> %
> % @inlinefmtifelse{FMTNAME,THEN-TEXT,ELSE-TEXT} expands THEN-TEXT if
>
> although I would rather not touch this code if possible. It might be
> better just to document the limitation and workaround in the manual.
>
I think it would be nice if inlinefmt(tex,...) worked, but I'll leave that
to you. I have a workaround that is perfectly fine and AFAICT, would work
just as well as inlinefmt.
--
Ray
