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bug#52569: 29.0.50; Wishlist: There should be a way for packages to hand
From: |
Stefan Kangas |
Subject: |
bug#52569: 29.0.50; Wishlist: There should be a way for packages to handle files without reading them in first |
Date: |
Sun, 19 Dec 2021 12:00:06 -0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Juri Linkov <juri@linkov.net> writes:
>> This would be useful for large files like .sqlite and images.
>
> I'm not sure about images since some image formats are editable,
> like .svg, .xpm, .ps... Only .pdf with in doc-view-mode could have
> this optimization of not loading the whole file. Also archive files
> could benefit from this optimization.
This would improve performance, right? If yes, I think this is sorely
needed for opening images in Emacs (though there are other things to
improve as well). I think the editable image formats are in the
minority, so we could always handle them differently.
> Or when it returns t, this could mean that the function displayed
> the buffer in some other way, for example, by calling an external command.
Yes, that would be very nice. I have wanted something like that to
replace the openwith package in my own use.