Re: I'm not subscriber, but want to send a code.

[Ihor Radchenko]

Teika Kazura <teika@gmx.com> writes:

> ------------------------------------------------------------------------
> [Wishitem] Show the current node name in the header line (w/ sample 
> implementation)
> -----------------------------------------------------------------------
> Hi. The following code shows the current "node name" (outline header
> name) in the emacs header line:
> ...

Thanks for the suggestion!
Have you seen org-eldoc.el library (a part of org-contrib)?
It provides a similar functionality using eldoc-mode.

By default, eldoc-mode uses echo area to display the breadcrumbs.
However, you may customize `eldoc-display-functions' to display the
breadcrumbs in header line.

eldoc-mode allows multiline messages.

> If you like, adopt it for org-mode. Feel free to modify.

You might also be interested in https://github.com/joaotavora/breadcrumb

I believe that the proposed functionality is already covered by either
org-eldoc.el or breadcrumb.el. So, we do not need to re-implement it
within Org mode.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
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