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; * etc/TODO: Add an item about @math images in Info buffers.

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Eli Zaretskii 2025-11-08 09:04:32 +02:00
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@ -547,6 +547,34 @@ One way of doing this is to start with fx's dynamic loading, and use it
to implement things like auto-loaded buffer parsers and database
access in cases which need more than Lisp.
** In Info, support image files generated from @math expressions
See this discussion on the Texinfo mailing list for the details:
https://lists.gnu.org/archive/html/bug-texinfo/2024-12/msg00061.html
https://lists.gnu.org/archive/html/bug-texinfo/2025-01/msg00004.html
https://lists.gnu.org/archive/html/bug-texinfo/2025-11/msg00002.html
The job here is to figure out the image attributes that will produce
good-looking display of math formulas in images created by LaTeX from
Texinfo @math elements. The above discussion concluded that just
showing these images as any other image sometimes produces misaligned
display and sometimes the size of the image needs tweaking to make it
similar to the default face's font used for showing the text in Info
buffers. The assumption is that using some non-default attributes of
image specs, like :ascent, :margin, and :height, and perhaps also using
:scale with the value 'auto', should be able to improve the display.
The conclusions should be communicated to the Texinfo developers, so
that 'makeinfo' could embed the necessary image attributes in the Info
output it produces from @math.
The function in info.el which handles image display is
'Info-display-images-node'.
The message below in Texinfo mailing list archives includes files that
could be used to work in this feature:
https://lists.gnu.org/archive/html/bug-texinfo/2025-11/msg00012.html
** Imenu could be extended into a file-structure browsing mechanism
This could use code like that of customize-groups.