bug#61877: [PATCH] Extract Lisp function examples from shortdoc information

[Daniel Martín]

Daniel Martín <mardani29@yahoo.es> writes:

> Shortdoc contains a lot of useful examples about how to use common ELisp
> functions.  This patch explores a new Emacs feature where those examples
> are identified and extracted so they can be displayed, perhaps, in
> *Help* buffers (via an additional help-fns-describe-function-functions
> hook).
>
> After you install the attached patch, take a look at the *Help* buffer
> produced by C-h f assq RET, or C-h f match-string RET, etc.
>
> What do you think of having this new Lisp feature in Emacs 30?  I can
> send later another patch with tests, relevant NEWS entries and
> documentation changes.
>
> Thanks.

I attach a second version of the patch.  I've confined the
implementation to shortdoc.el, added a test, and documented the new
functions.

The NEWS entry explains how users could show this information in their
*Help* buffers, if they want.

Thanks.

0001-Add-functions-to-query-Emacs-Lisp-examples-registere.patch
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