bug#1806: dired-pop-to-buffer in wrong place

[martin rudalics]

> We could compare `split-window-preferred-function' with its default value
> and override it in dired only when it has the default value.

It would be more difficult to document such behavior than to implement it.

> Otherwise we could define a new option 
`dired-split-window-preferred-function'.

Didn't you cite some other package that wanted such a thing?

>> We could also provide a variable `split-window-preferred-window', nil by
>> default, which the window choosing mechanism of `display-buffer' would
>> respect if bound to some live window.  And we could turn this variable
>> into an option (now or later).
>
> Do you mean `split-window-preferred-window' as a user-defined value
> that replaces the `window' argument of `split-window-preferred-function'?

Yes, provided `split-window-preferred-function' then still wants such an
argument.  I'd simply check whether `split-window-preferred-window' is a
live window that can be split by `split-window-preferred-function'.  If
not, I'd proceed in the usual way.  Later on, we could allow as value of
`split-window-preferred-window' also a function that computes such a
window on-the-fly.

martin