Re: Completion: minibuffer.el vs comint.el

[martin rudalics <rudalics@gmx.at>]

>> I think it may become dedicated in the function `minibuffer-completion-help'
>> in `minibuffer.el'. Notice the local binding of the variable
>> display-buffer-mark-dedicated'.  From the documentation of the variable:
>
>> 	If non-nil, `display-buffer' marks the windows it creates as dedicated.
>
>> `display-buffer' itself is called from the `with-output-to-temp-buffer' C
>> function (at least that is what `with-output-...'s docs suggest).
>
>> Unfortunately as for intent/reason behind this behavior, I don't have
>> a clue.
>
> This is so as to know whether to delete the window when the *Completions*
> buffer is hidden/buried.
>
> Maybe we should use another approach (hi Martin ;-).  E.g. just add
> a flag "created for *Completions*" when we create the window, that would
> work similarly to `dedicated' w.r.t bury-buffer but which would not
> prevent display-buffer from reusing that window for some other buffer.

The dedicated window method works well for displaying a buffer in a
separate frame or a new window.  It can't be used when a window is
reused for displaying the buffer.  In my branch `display-buffer' always
records the previous state and burying the buffer or quitting the window
conveniently restores the previous state.  So when you dedicate a window
to its buffer you exclusively do that because you do not want to display
another buffer in that window.

martin