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Re: display-buffer-alist simplifications

From: Stefan Monnier
Subject: Re: display-buffer-alist simplifications
Date: Sat, 13 Aug 2011 10:30:10 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

>> You're referring to the following point, I think:
>> - the display method has to handle everything, there's no common/shared
>> postprocessing.
>> The way I think we would handle it is by making most/all
>> display-buffer-<foo> function finish by calling
>> a display-buffer-post-process function, passing it the ALIST.
>> So the ALIST may include something like (even-window . height) to
>> specify whether and how to even windows.
> Now this makes sense.  We would have to decide whether we provide one
> such function or more (depending on the functionality of the service or
> the method used).  And probably, if there's no suitable ALIST entry,
> such a function would respect the old options where applicable.

That's the idea, yes.  I'm not completely satisfied with this, tho.
I'd rather have a way to specify a list of post-processing functions,
but I can't think of an elegant way to do that right now.

>> Admittedly, you won't be able to do the equivalent of
>> ((reuse-window foo bar) (reuse-window titi toto)) because the args
>> passed to FUNCTIONs are the same for each FUNCTION, so if a FUNCTION
>> appears twice both occurrences will behave identically.
> I should be able to live with that.  But how do we express that
> splitting a window should try the largest window first and the lru
> afterwards?

You don't express it in display-buffer-alist but in Elisp code instead.


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