bug#64227: Setting of outline levels for custom headings

[uzibalqa]

------- Original Message -------
On Friday, June 23rd, 2023 at 6:56 AM, Juri Linkov <juri@linkov.net> wrote:


> forcemerge 64177 64227
> stop
> 
> > I am using outline-minor-mode and have changed outline-regexp, 
> > outline-heading-alist.
> > 
> > Have seen that for some major modes (e.g. emacs-lisp-mode), with 
> > outline-minor-mode-highlight
> > set to 'override nil), one has to call (setq-local outline-level 
> > 'outline-level) for the
> > heading faces to take effect.
> > 
> > But without the call to outline-minor-mode-highlight, the headings defined 
> > by outline-regexp
> > still get recognised, but not the outline levels.
> > 
> > It is not evident at this point, which major modes require a call to 
> > (setq-local outline-level 'outline-level).
> > There is not enough information in the documentation to get a custom 
> > headings setup operational.
> > 
> > Furthermore, although a call to (setq-local outline-level 'outline-level) 
> > solved the problem,
> > a better approach would be for outline-minor-mode to automatically detect 
> > whether a custom heading
> > was specified, and thus act accordingly. It would be quite a struggle for 
> > people to perceive the
> > need to call (setq-local outline-level 'outline-level), as the change is 
> > only needed for certain
> > major modes only.
> 
> 
> Why are you creating a new bug report instead of replying to the existing?

You provided a solution for my bug report with

(setq-local outline-level 'outline-level)

This is about a request to handle custom headings better, otherwise improving
documentation on how to set up custom headings and a simpler way to figure out
which major modes would require the additional outline-level call.