bug#18823: Built-in support for visiting compressed files

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> 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?

Yes -- it's already pushed to Emacs 28.

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