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Re: Removing rollback from VC mode - request for comment

From: Stefan Monnier
Subject: Re: Removing rollback from VC mode - request for comment
Date: Sun, 14 Dec 2014 18:29:04 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)

> strings.  The Emacs display engine was never meant to cope with such
> massive usage of these features.  I think magit also uses a lot of
> overlay/display strings with newlines, or maybe it did in the past.
> That is one of the nastiest thing to do with Emacs display.  (I can
> explain if you are interested.)

FWIW, nhexl-mode is also guilty of very heavy use of display strings.

> And frankly, I don't understand why this kind of design was necessary:

I don't know enough about Magit to have an informed opinion, but your
analysis makes sense, indeed.  In the case of nhexl-mode we don't have
the luxury of changing the buffer's content.


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