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bug#18823: Built-in support for visiting compressed files
From: |
Eli Zaretskii |
Subject: |
bug#18823: Built-in support for visiting compressed files |
Date: |
Wed, 14 Jul 2021 16:16:24 +0300 |
> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: dmoncayo@gmail.com, 18823@debbugs.gnu.org
> Date: Wed, 14 Jul 2021 15:05:13 +0200
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > To insert text, you must make the buffer into which you insert be the
> > current buffer. That's how the low-level insertion primitives work.
> > So what will insert-into-buffer do that is different (and more
> > efficient) than the contortion you need to do now, which involves
> > temporary switch to the target buffer?
>
> It just does the contortion for you.
So you want a function that does
(let ((source-buf (current-buffer)))
(with-current-buffer target-buf
(insert-buffer-substring source-buf ...)))
is that it?
> This sort of thing comes up mostly when doing stuff with temporary
> buffers, so I wonder whether we should consider adding a special form
> for it. That is, something like `with-temp-buffer-and-insert' that
> would work identically as `with-temp-buffer', but insert the contents of
> the buffer into the current buffer before killing the temporary
> buffer...
If it's something one must do a lot, maybe...