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From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: cpitclaudel@gmail.com, joaotavora@gmail.com, emacs-devel@gnu.org
Subject: Re: Tracking buffer positions across time, without markers (was Re: PL support)
Date: Mon, 11 May 2020 05:27:31 +0300	[thread overview]
Message-ID: <837dxjcijw.fsf@gnu.org> (raw)
In-Reply-To: <jwvtv0nh6e7.fsf-monnier+emacs@gnu.org> (message from Stefan Monnier on Sun, 10 May 2020 16:46:29 -0400)

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: Eli Zaretskii <eliz@gnu.org>,  emacs-devel@gnu.org,
>   João Távora
>  <joaotavora@gmail.com>
> Date: Sun, 10 May 2020 16:46:29 -0400
> 
> If you have the option to ask for a more up-to-date version of the data
> to be sent, you can obviously throw the data away, but even in that case
> you should be able to do better with fairly little work: use an
> after-change-function to keep track of just 2 markers that indicate the
> beginning and end of the part of the buffer that's been modified.
> Then you can easily translate all the positions before the first and
> after the second marker and only discard the data between the two.

This is all possible, of course, but I don't (yet) see why it would be
necessary.  We survive without this complexity when using JIT
font-lock, and any alternative back-end for the same job should be
able to reuse the same basic architecture.



  reply	other threads:[~2020-05-11  2:27 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-09 19:47 Tracking buffer positions across time, without markers (was Re: PL support) Clément Pit-Claudel
2020-05-09 21:38 ` João Távora
2020-05-09 22:22   ` Clément Pit-Claudel
2020-05-09 23:26     ` João Távora
2020-05-10  3:45       ` Clément Pit-Claudel
2020-05-10  4:32         ` Eli Zaretskii
2020-05-10 19:27           ` Clément Pit-Claudel
2020-05-10 19:42             ` Drew Adams
2020-05-10 19:49             ` Eli Zaretskii
2020-05-10 20:52               ` Clément Pit-Claudel
2020-05-11 14:24                 ` Eli Zaretskii
2020-05-11 15:03                   ` Clément Pit-Claudel
2020-05-11 15:25                   ` Stefan Monnier
2020-05-10 20:46             ` Stefan Monnier
2020-05-11  2:27               ` Eli Zaretskii [this message]
2020-05-11  3:19                 ` Stefan Monnier
2020-05-11  0:17             ` Vladimir Sedach
2020-05-11 14:18               ` Clément Pit-Claudel
2020-05-11 15:16                 ` João Távora
2020-05-11 15:33                   ` Clément Pit-Claudel
2020-05-11 15:44                     ` João Távora
2020-05-11 16:02                       ` Clément Pit-Claudel
2020-05-11 16:11                         ` João Távora
2020-05-11 17:20                           ` Stefan Monnier
2020-05-11 14:39               ` Eli Zaretskii

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