bug#73530: [PATCH] Add imenu index function for Djvu files in doc-view

["Jose A. Ortega Ruiz" <jao@gnu.org>]

On Sat, Sep 28 2024, Tassilo Horn wrote:


[...]

> I think I'd prefer to delay the creation of the index until imenu is
> invoked the first time and get rid of doc-view-imenu-enabled.  If we
> really wanted to and the requirements are met, we could also run the
> index creation in an idle-timer.  Probably not by default but maybe by
> adding and documenting a function one could add to doc-view-mode-hook
> for that purpose.

FWIW, I'd keep doc-view-imenu-enabled, and use it to control the
creation of the idle timer. The latter sounds like the right solution to
avoid delays, and the former a much simpler strategy than asking users
to configure hooks.

I also very much like the idea of being able to tell emacs not to call
executables in my path and create other processes behind my
back. Personally, I find that ability reason enough to keep the flag,
delays or not, and, now that i think of it, that was perhaps the main
reason I introduced doc-view-imenu-enabled. Unconditionally spawning
external processes doesn't feel right to me.

Just my 2c,
jao
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