Re: Scaling of image produced for math in Info in the Emacs Info reader

[Eli Zaretskii]

> From: Björn Bidar <bjorn.bidar@thaodan.de>
> Cc: pertusus@free.fr,  emacs-devel@gnu.org
> Date: Fri, 31 Jan 2025 07:06:33 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > We could perhaps use character composition and HarfBuzz shaping to
> > produce the desired effect from a sequence of codepoints, but that
> > would mean only certain fonts are suitable for displaying Info manuals
> > with math (assuming there are such fonts out there, I don't know if
> > that's true), and makeinfo will need to know about those fonts and
> > their shaping capabilities when it generates Info files.  I'm not sure
> > this is a reasonable design.
> 
> Should this already happen composing HTML or LaTeX output? It possible
> to render mathematical formulas in a similar way than in PDF's with
> HTML.
> "All" that's missing is include the information that PDF's and the HTML
> output already should get for this.

How's that possible?  Info files are plain-text files with some
special-purpose control sequences.  Plain-text means it's just a
sequence of Unicode codepoints.  How can a plain-text file express
layout produced by LaTeX?