Re: New package `outline-occur'

>>> Also overriding 'occur-hook' with 'pop-to-buffer' is not
>>> the right way to customize the buffer display behavior.
>>> Either the command can override with 'display-buffer-overriding-action',
>>> or we can leave the customization to users with 'display-buffer-alist'.
>>
>> I'd like the Occur buffer to pop up by default, so I'll take a look at
>> `display-buffer-overriding-action' and change the code accordingly.
>
> `display-buffer-overriding-action` is not appropriate for defaults
> (since, as the name implies, it *overrides* other settings, incuding
> user settings).
>
> Instead, pass the default ACTION directly to `display/pop-to-buffer`.

The problem is that the call '(display-buffer occur-buf)'
is deeply inside 'occur-1'.  We could add a category to this call
for better customizability.

But still we need a better way for a command to override the
default behavior (popup or not) using some let-bound variable.