bug#50679: 28.0.50; outline-minor-mode-cycle should be able to only cycle at the begining of a line

[Juri Linkov]

>>>> Then you can customize it to 'bolp'.
>>>
>>> I just tried it out, and it looks good. The only thing I wonder is if
>>> this should apply to both outline-minor-mode and outline-mode?
>>
>> I separated maps outline-mode-map from outline-minor-mode-cycle-map,
>> so it's applied only to outline-minor-mode-cycle-map.  It seems there is
>> no need to use it in outline-mode.
>
> I just noticed this now, but I am not sure how clever it is to bind
> outline-cycle-buffer via a menu-item. I don't think that there is as
> much of a conflict with backtab, as with regular tab, and having to find
> a heading before being able to cycling seems less efficient.

I'm using S-TAB (backtab) all the time, e.g. to move to the previous
hunk in diff-mode, so menu-item is a saver.  After customizing
the option that you proposed to the value "Not at the beginning of the line"
now it's possible to use TAB to move the next diff hunk and S-TAB to
move to the previous diff hunk while keeping point on the first column.
And when point is on the second column then S-TAB hides all hunks,
and TAB opens the current hunk with outline-minor-mode-cycle.