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Re: emacs kpart
From: |
Mario Lang |
Subject: |
Re: emacs kpart |
Date: |
Wed, 30 Jul 2003 17:28:55 +0200 |
User-agent: |
Gnus/5.1002 (Gnus v5.10.2) Emacs/21.3 (gnu/linux) |
Richard Stallman <address@hidden> writes:
> Is there a way to store the contents of the current buffer and then,
> after
> some modification, retrieve only the part that have changed? I know that
> there are some functions for retrieving the entire or part of the buffer
> (e.g. buffer-string,buffer-substring) but if I don't know which parts
> have
> been modified after some point, my only choice is to retrieve the entire
> buffer, which is of course very inneficient.
>
> You could look through the undo list.
> You would need to prevent the undo list from being truncated
> so that you could be sure it gives a complete record.
I know at least that erc explicitly prevents insertions from the filter
function from affecting the undo-list, since that would clobber it up with
modifications the user himself never made. It might be that
other extention packages do something roughly alike for the same reasons.
--
CYa,
Mario