unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: Stefan Monnier via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: highlighting one buffer according to another
Date: Wed, 14 Sep 2022 23:18:49 -0400	[thread overview]
Message-ID: <jwvzgf11g7i.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: CAJcAo8vtv8yvbJDgZM6bU3vYmpMQL12ptZ7uV_ed3YPCRqtDqg@mail.gmail.com

> it captures the diff, its contents, from any other buffer.  suppose
> the buffer it captures from is called orig.  it could be magit or
> anything else.  and suppose the name of the buffer with special gutter
> characters is mydiff.

I'm afraid your description is a bit too vague for me to be able to give
you much advice.

How do the original (say diff-mode) buffer and your mydiff buffer differ
(or how are they related)?
Is `mydiff` generated from `diff`?
What do you mean by "gutter"?

> so part of the problem is finding the corresponding line in orig for
> each line in mydiff,

If `mydiff` is generated from `diff`, presumably you can get this info
by remembering this original mapping (e.g. adding text-properties in
`mydiff` that point to the origin, so that as you modify `mydiff`, the
origin info is preserved).


        Stefan




  reply	other threads:[~2022-09-15  3:18 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-15  3:09 highlighting one buffer according to another Samuel Wales
2022-09-15  3:18 ` Stefan Monnier via Users list for the GNU Emacs text editor [this message]
2022-09-15  4:36   ` Samuel Wales

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=jwvzgf11g7i.fsf-monnier+emacs@gnu.org \
    --to=help-gnu-emacs@gnu.org \
    --cc=monnier@iro.umontreal.ca \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).