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From: Qiantan Hong <qhong@mit.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Yuan Fu <casouri@gmail.com>, Fermin <fmfs@posteo.net>,
	Jean Louis <bugs@gnu.support>, Caio Henrique <caiohcs0@gmail.com>,
	Ergus <spacibba@aol.com>, "joakim@verona.se" <joakim@verona.se>,
	Noam Postavsky <npostavs@gmail.com>,
	Karl Fogel <kfogel@red-bean.com>,
	Stefan Monnier <monnier@iro.umontreal.ca>,
	Joe Corneli <holtzermann17@gmail.com>,
	emacs-devel <emacs-devel@gnu.org>
Subject: Re: Question collaborative editing - Wikipedia reference
Date: Mon, 12 Oct 2020 16:53:43 +0000	[thread overview]
Message-ID: <2E89B4B4-AAA9-472F-AAFC-7505C2A98FD2@mit.edu> (raw)
In-Reply-To: <834kmz4iet.fsf@gnu.org>

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The problem with this is it will require considering conflict
resolution for every combination of command (which is basically
impossible) and it’s hard to even just guarantee eventual consistency.

One simple example to illustrate this:
* Level 1
** Level 2
some text

User 1 pressed TAB (to invoke org-cycle) on ** Level 2,
user 2 delete ** Level 2 in the same time.
If we just send (command,location) over the wire,
in the end user 1 will end up having a folded “some text”
without “**level 2” heading, and user1 will have level 1 folded.

With a overlay-synchronization approach, I was able to
support org-cycle with eventual consistency guarantee in 1 line
(just add to the filter). 
(The synchronization implementation itself is about 100 lines).
I was thinking that my way of filtering might not be general enough
but now I think there’s probably very few use cases for this —
org-cycle is a useful one — so I don’t need to worry much about
filtering customization. What do others think?

> On Oct 12, 2020, at 10:40 AM, Eli Zaretskii <eliz@gnu.org> wrote:
> 
>> From: Qiantan Hong <qhong@mit.edu>
>> CC: Joe Corneli <holtzermann17@gmail.com>,
>>        "joakim@verona.se"
>> 	<joakim@verona.se>, Yuan Fu <casouri@gmail.com>,
>>        Fermin <fmfs@posteo.net>, Jean Louis <bugs@gnu.support>,
>>        Caio Henrique <caiohcs0@gmail.com>, Ergus
>> 	<spacibba@aol.com>,
>>        Noam Postavsky <npostavs@gmail.com>, Karl Fogel
>> 	<kfogel@red-bean.com>,
>>        Stefan Monnier <monnier@iro.umontreal.ca>,
>>        emacs-devel
>> 	<emacs-devel@gnu.org>
>> Date: Mon, 12 Oct 2020 03:22:55 +0000
>> 
>> E.g. when two users are editing the same org document,
>> in some cases they may want two replica to fold the same sections.
>> — I always find myself wanting this feature to make sure both
>> are focusing on the same parts of the document, and at least seeing
>> the same thing.
> 
> This seems to indicate you want the capability of sending commands,
> not their results.  The command will then be executed on the remote,
> and will produce the desired effects.


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  reply	other threads:[~2020-10-12 16:53 UTC|newest]

Thread overview: 151+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200921120518.35d56p747pr5mhta.ref@Ergus>
2020-09-21 12:05 ` Question collaborative editing Ergus
2020-09-21 13:35   ` Stefan Monnier
2020-09-21 16:24     ` Ergus
2020-09-21 20:25     ` Karl Fogel
2020-09-24  1:36       ` Ergus
2020-09-24 21:41         ` Fermin
2020-09-25  0:22           ` Ergus
2020-09-25 10:34             ` Fermin
2020-09-26 16:33               ` Ergus
2020-09-29 16:01                 ` Qiantan Hong
2020-09-29 21:46                   ` Ergus
2020-09-30  9:52                     ` Jean Louis
2020-09-28  0:43               ` Ergus
2020-09-29  0:00                 ` Fermin
2020-09-29  1:01                   ` Noam Postavsky
2020-09-29  8:25                     ` Jean Louis
2020-09-29 12:45                       ` Ergus
2020-09-29 15:58                         ` Qiantan Hong
2020-09-29 16:29                           ` Stefan Monnier
2020-09-29 16:33                             ` Qiantan Hong
2020-10-27  5:10                             ` Qiantan Hong
2020-10-27 12:46                               ` Jean Louis
2020-09-29 17:35                         ` Karl Fogel
2020-09-29 21:58                           ` Ergus
2020-09-29 23:40                             ` Qiantan Hong
2020-09-30  0:13                               ` Ergus
2020-09-30  0:47                                 ` Qiantan Hong
2020-09-30  7:40                                 ` Karl Fogel
2020-09-30 13:19                                   ` Ergus
2020-09-30 17:00                                     ` Karl Fogel
2020-10-02 18:48                                     ` Emacs + Etherpad compatibility? (was: Question collaborative editing.) Karl Fogel
2020-10-02 20:34                                       ` Emacs + Etherpad compatibility? Stefan Monnier
2020-10-03 10:01                                         ` Michael Albinus
2020-09-30 13:46                                 ` Question collaborative editing Eli Zaretskii
2020-09-30 13:43                               ` Eli Zaretskii
2020-09-30 15:47                                 ` Qiantan Hong
2020-09-30 16:19                                   ` Eli Zaretskii
2020-09-30 17:00                                     ` Qiantan Hong
2020-09-30 17:04                                       ` Qiantan Hong
2020-09-30 17:20                                         ` Eli Zaretskii
2020-09-30 17:48                                           ` Qiantan Hong
2020-09-30 18:08                                             ` Eli Zaretskii
2020-09-30 23:11                                               ` Ergus
2020-10-01 13:40                                                 ` Eli Zaretskii
2020-10-01 15:21                                                   ` Qiantan Hong
2020-10-01 23:10                                                     ` Karl Fogel
2020-10-01 15:55                                                   ` Ergus
2020-09-30 17:08                                       ` Stefan Monnier
2020-10-01 14:11                                     ` Jean Louis
2020-10-01 16:01                                       ` Ergus
2020-10-01 16:44                                         ` Pankaj Jangid
2020-10-01 16:53                                           ` Ergus
2020-10-01 17:29                                             ` Yuri Khan
2020-10-02  3:00                                               ` Pankaj Jangid
2020-10-02  7:30                                             ` Michael Albinus
2020-10-02  7:35                                               ` Eli Zaretskii
2020-10-02 10:01                                               ` Pankaj Jangid
2020-10-02 11:33                                               ` Ergus
2020-10-02 12:13                                                 ` Michael Albinus
2020-10-04 17:54                                           ` Question collaborative editing - Wikipedia reference Jean Louis
2020-10-04 18:45                                             ` Caio Henrique
2020-10-04 19:48                                               ` Jean Louis
2020-10-04 23:59                                                 ` Qiantan Hong
2020-10-05  0:05                                                   ` Qiantan Hong
2020-10-05  1:08                                                     ` Karl Fogel
2020-10-05  4:40                                                     ` Karl Fogel
2020-10-05  5:48                                                       ` Jean Louis
2020-10-05  6:18                                                         ` Qiantan Hong
     [not found]                                                           ` <EC602765-9F1A-4269-9F2E-4F05C50AE1E7@mit.edu>
2020-10-05  8:07                                                             ` crdt.el collaborative real time editing for Emacs Jean Louis
2020-10-05  8:22                                                               ` Qiantan Hong
2020-10-05 14:03                                                                 ` Jean Louis
2020-10-05 17:05                                                                   ` Qiantan Hong
2020-10-05 18:17                                                                     ` Jean Louis
2020-10-05 14:11                                                                 ` Jean Louis
2020-10-05  9:39                                                               ` Eli Zaretskii
2020-10-05  8:51                                                           ` Jean Louis
2020-10-05  3:53                                                   ` crdt.el - collaborative " Jean Louis
2020-10-05  4:02                                                   ` Question collaborative editing - Wikipedia reference Jean Louis
2020-10-05  4:11                                                     ` Qiantan Hong
2020-10-05  5:34                                                       ` Jean Louis
2020-10-05  5:58                                                       ` Eli Zaretskii
2020-10-05  6:15                                                     ` Stefan Monnier
2020-10-05  6:51                                                       ` Eli Zaretskii
2020-10-05  7:31                                                         ` Ergus via Emacs development discussions.
2020-10-05  8:44                                                       ` Jean Louis
2020-10-05 13:20                                                         ` Stefan Monnier
2020-10-05 17:20                                                           ` Karl Fogel
2020-10-06  1:03                                                             ` Qiantan Hong
2020-10-06  1:41                                                               ` T.V Raman
2020-10-06  8:52                                                               ` Jean Louis
2020-10-06 17:32                                                               ` Jean Louis
2020-10-20 16:15                                                                 ` Ergus
2020-10-20 17:11                                                                   ` Qiantan Hong
2020-10-20 18:51                                                                     ` Jean Louis
2020-10-26 20:36                                                                       ` Qiantan Hong
2020-10-27 21:54                                                                         ` Mathias Dahl
2020-10-27 22:45                                                                           ` Qiantan Hong
2020-10-29 16:21                                                                             ` Ergus
2020-10-28 16:29                                                                         ` Question collaborative editing - tools to connect Jean Louis
2020-10-28 16:40                                                                           ` Qiantan Hong
2020-10-28 17:13                                                                             ` Question collaborative editing - crdt.el, does it use SSL? Jean Louis
2020-10-28 21:51                                                                               ` Qiantan Hong
2020-10-28 22:36                                                                                 ` Jean Louis
2020-10-28 23:08                                                                                   ` Qiantan Hong
2020-10-29  5:43                                                                                     ` Jean Louis
2020-11-02  9:47                                                                                       ` Robert Pluim
2020-11-02 10:02                                                                                         ` Jean Louis
2020-10-28 17:20                                                                             ` Question collaborative editing - torify emacs Jean Louis
2020-10-28 18:01                                                                               ` Qiantan Hong
2020-10-28 18:56                                                                                 ` Jean Louis
2020-10-29  4:57                                                                             ` Question collaborative editing - tools to connect Richard Stallman
2020-10-31  4:16                                                                           ` Qiantan Hong
2020-10-31  5:33                                                                             ` Jean Louis
2020-10-20 18:21                                                                   ` Question collaborative editing - Wikipedia reference Jean Louis
2020-10-06 18:20                                                               ` Karl Fogel
2020-10-07  0:00                                                                 ` Qiantan Hong
2020-10-09  1:50                                                                   ` Yuan Fu
2020-10-09  1:58                                                                   ` Yuan Fu
2020-10-09  2:12                                                                     ` Qiantan Hong
2020-10-09  2:42                                                                       ` Yuan Fu
2020-10-09  7:04                                                                         ` Qiantan Hong
2020-10-09  8:36                                                                           ` joakim
2020-10-09 13:33                                                                             ` Joe Corneli
2020-10-09 15:33                                                                               ` Qiantan Hong
2020-10-11 17:49                                                                               ` Qiantan Hong
2020-10-11 18:21                                                                                 ` Eli Zaretskii
2020-10-11 18:26                                                                                   ` Qiantan Hong
2020-10-11 18:56                                                                                     ` Eli Zaretskii
2020-10-11 19:57                                                                                       ` Qiantan Hong
2020-10-12  2:26                                                                                         ` Eli Zaretskii
2020-10-12  3:22                                                                                           ` Qiantan Hong
2020-10-12 14:40                                                                                             ` Eli Zaretskii
2020-10-12 16:53                                                                                               ` Qiantan Hong [this message]
2020-10-13 13:31                                                                                                 ` Yuan Fu
2020-10-11 18:40                                                                                 ` Joe Corneli via Emacs development discussions.
2020-10-09 17:46                                                                           ` Jean Louis
2020-10-09 17:50                                                                             ` Qiantan Hong
2020-10-09 20:31                                                                           ` Karl Fogel
2020-10-10 17:09                                                                             ` Qiantan Hong
2020-10-09  7:09                                                                         ` Qiantan Hong
2020-10-05  5:50                                                   ` Eli Zaretskii
2020-10-05  3:10                                               ` Richard Stallman
2020-10-20 16:37                                             ` Aurélien Aptel
2020-10-20 18:41                                               ` Jean Louis
2020-10-26 19:47                                                 ` Eli Zaretskii
2020-10-26 20:26                                                   ` too many Jean Louis
2020-10-28  4:45                                                   ` Question collaborative editing - Wikipedia reference Richard Stallman
2020-10-28 15:08                                                     ` Eli Zaretskii
2020-10-28 16:20                                                       ` Jean Louis
2020-10-28 16:33                                                         ` Eli Zaretskii
2020-10-28 16:59                                                           ` Jean Louis

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