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Re: Opening multiple files in a single buffer?

From: Gregory Heytings
Subject: Re: Opening multiple files in a single buffer?
Date: Sat, 13 Jun 2020 20:42:47 +0000
User-agent: Alpine 2.21 (NEB 202 2017-01-01)

Indeed, but that's not the point. As I said what I'm proposing is a way to do some things more easily (for some users). Everything that could be done with such a feature can already be done in other ways. I don't use the menu-bar, the tool-bar, customize, or the menus on the mode-line. But I do not consider that they are useless. All these features make it possible to do things more easily (for some users), that can already be done in other ways.

Before you decide to dive into this, I would suggest doing a test run by writing a simple script to cat the files together with a separator and edit that file with something like search and replace or bounce around in various places making edits. I have vague memories that when buffers get extremely big, emacs slows down considerably but my memories are not clear enough to recall the exact circumstances.

Perhaps one of the emacs maintainers can jump in and comment. Is emacs going to be more efficient with several “small” buffers rather than one extremely large buffer. Some of the people commenting are wanting to load up an entire project into a single buffer. As I recall, that is going to be very unfriendly to use.

That's not correct. On my laptop, I can easily edit a 100 (one hundred) MB text file, Emacs is almost as reactive as with a 1 KB text file. Of course some operations take more time, e.g. a query-replace-regexp on the whole buffer, but from what I see (on my laptop it takes about four seconds, with a regexp) I doubt that it takes more time than hundred query-replace-regexp in a 1 MB file, or for that matter than doing this with dired on hundred 1 MB files.


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