Re: question about pop-to-buffer

[Thierry Volpiatto <thierry.volpiatto@gmail.com>]

martin rudalics <rudalics@gmx.at> writes:

>> Also, I have noticed that window-right/left can also handle vertical
>> splitting (I.e I was looking for something like window-above/bottom and
>> I discover that window-right/left do this).
>> Maybe that can be documented somewhere?
>
> No, and I probably should have called them window--right and
> window--left, but I faintly recall having called them from somewhere
> outside window.el.  These functions are only useful to avoid writing
>
>   (and window (window-parent window) (window-next-sibling window)))
>
> which is needed for technical reasons because usually the minibuffer
> window is the "sibling" of the frame's root window and the window tree
> functions should not work on the minibuffer window.  Anyone interested
> finds the rationale in the comment preceding `window-right'.
>
> The functions you are interested in are either
>
> `window-next-sibling' and `window-prev-sibling' plus `window-combined-p'
>   where the latter is needed to find out whether any such sibling is
>   horizontally or vertically aligned - an information `window-right' and
>   `window-left' won't give you anyway, or
>
> `window-in-direction'.
>
> If you tell me more precisely how you want to use them, I can provide
> more information.
I want a function that return the window at the left of the selected one
or nil if none.
Same for above, right, below.

If a window is returned I use it, otherwise (nil) I use the selected
one.

Actually I use window-left/right and it works fine, but IIUC, I don't
need the first checking:
(and window (window-parent window) (window-next-sibling window)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

I can use directly window-next/prev-sibling, right?

-- 
  Thierry
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