From: Philip Kaludercic <philipk@posteo.net>
To: Ergus <spacibba@aol.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Help with display-buffer-alist
Date: Fri, 15 Apr 2022 14:33:18 +0000 [thread overview]
Message-ID: <87ilrabemp.fsf@posteo.net> (raw)
In-Reply-To: <20220415111531.ktoqlbfuusufjjdv@Ergus> (Ergus's message of "Fri, 15 Apr 2022 13:15:31 +0200")
Ergus <spacibba@aol.com> writes:
> Hi:
>
> I am trying to mimic somehow the swiper behavior with occur. The first
> step for that is to put the occur window always at bottom which was
> pretty simple with this:
>
> (add-to-list 'display-buffer-alist ("*Occur*" display-buffer-at-bottom))
^ watch out, this is a regular
expression matching a buffer
name, so the * has to be escaped
[0].
> But now I want somehow to limit the window height to 10 lines.
>
> With the documentation of display-buffer and display-buffer-alist It
> says that there should be (CONDITION . ACTION) where:
>
> ACTION is a cons cell (FUNCTIONS . ALIST), where FUNCTIONS is an
> action function or a list of action functions and ALIST is an
> action alist. Each such action function should accept two
> arguments: a buffer to display and an alist of the same form as
> ALIST. See `display-buffer' for details.
>
>
> So I tried substituting display-buffer-at-bottom with:
>
> (display-buffer-at-bottom . (window-height . 10))
Note that (window-height . 10) is not an alist, but an element of an
alist. The alist you want to pass is
((window-height . 10))
which means (FUNCTION . ALIST) is
(display-buffer-at-bottom . ((window-height . 10)))
or simply
(display-buffer-at-bottom (window-height . 10))
making the `add-to-list' call
(add-to-list 'display-buffer-alist
'("*Occur*"
display-buffer-at-bottom
(window-height . 10)))
Or alternatively if you are tracking the master brach
(add-to-list 'display-buffer-alist
'((major-mode occur-mode)
display-buffer-at-bottom
(window-height . 10)))
which uses the new buffer-match-p system.
> But I am obviously doing something wrong because this just doesn't
> work... so the question is: how do I use correctly the
> (FUNCTIONS . ALIST) in the extended way?
>
> Thanks in advance,
> Ergus...
>
> PD: Maybe another example with this answer may be added to the docstring.
>
>
--
Philip Kaludercic
next prev parent reply other threads:[~2022-04-15 14:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220415111531.ktoqlbfuusufjjdv.ref@Ergus>
2022-04-15 11:15 ` Help with display-buffer-alist Ergus
2022-04-15 11:47 ` Eric S Fraga
2022-04-15 14:33 ` Philip Kaludercic [this message]
2022-04-21 6:36 ` Juri Linkov
2022-04-21 7:26 ` Philip Kaludercic
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