Multi-User Text Editing

Multi-User Text Editing This document defines how several people may simultaneously edit text. This XMPP Extension Protocol is copyright © 1999 – 2024 by the XMPP Standards Foundation (XSF). Permission is hereby granted, free of charge, to any person obtaining a copy of this specification (the "Specification"), to make use of the Specification without restriction, including without limitation the rights to implement the Specification in a software program, deploy the Specification in a network service, and copy, modify, merge, publish, translate, distribute, sublicense, or sell copies of the Specification, and to permit persons to whom the Specification is furnished to do so, subject to the condition that the foregoing copyright notice and this permission notice shall be included in all copies or substantial portions of the Specification. Unless separate permission is granted, modified works that are redistributed shall not contain misleading information regarding the authors, title, number, or publisher of the Specification, and shall not claim endorsement of the modified works by the authors, any organization or project to which the authors belong, or the XMPP Standards Foundation. ## NOTE WELL: This Specification is provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. ## In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall the XMPP Standards Foundation or any author of this Specification be liable for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising from, out of, or in connection with the Specification or the implementation, deployment, or other use of the Specification (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if the XMPP Standards Foundation or such author has been advised of the possibility of such damages. This XMPP Extension Protocol has been contributed in full conformance with the XSF's Intellectual Property Rights Policy (a copy of which can be found at <https://xmpp.org/about/xsf/ipr-policy> or obtained by writing to XMPP Standards Foundation, P.O. Box 787, Parker, CO 80134 USA). 0058 Deferred Standards Track Standards Council N/A Alexey Shchepin alexey@sevcom.net aleksey@jabber.ru 0.1 2002-11-12 as Initial version.

This document defines an XMPP protocol extension for editing one text document by several people. This can be useful when several people write different parts of one single document, or one person edits the text and other people can see the changes. The advantage of using this protocol in compared to using a version control systems is that all changes are distributed between editors in real-time.

To start editing a file, the user must subscribe to it on special "server" The server stores text files. A User first can ask for list of these documents.

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After that the server returns a list of the documents. For each list item an ID and description is given.

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Then the user can send a subscribe request to the server by sending the documents ID. Attribute type can be rdwr for full access or rdonly for read-only access.

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After successful subscription, the server sends the full contents of the document to the new editor.

... 8. Admin Use Cases 8.1. Banning a User 8.2. Modifying the Ban List 8.3. Granting Membership 8.4. Revoking Mambership 8.5. Modifying the Member List 8.6. Granting Moderator Privileges 8.7. Revoking Moderator Privileges 8.8. Modifying the Moderator List ... ]]> ]]>

If an editor wants to commit the changes he made, then he sends a patch file to this text in GNU diff(1) unified format without first two lines (they specify file names and modification dates, that is not needed).

@@ -2,7 +2,7 @@ 8.1. Banning a User 8.2. Modifying the Ban List 8.3. Granting Membership - 8.4. Revoking Mambership + 8.4. Revoking Membership 8.5. Modifying the Member List 8.6. Granting Moderator Privileges 8.7. Revoking Moderator Privileges ]]> ]]> @@ -2,7 +2,7 @@ 8.1. Banning a User 8.2. Modifying the Ban List 8.3. Granting Membership - 8.4. Revoking Mambership + 8.4. Revoking Membership 8.5. Modifying the Member List 8.6. Granting Moderator Privileges 8.7. Revoking Moderator Privileges Not Allowed ]]>

If server accepts the patch, then it resends it to all subscribed text editors and readers.

If server receives an error IQ reply from one of the editors/readers on any of above requests, then it must remove him from subscribers list and may send a message to him about this.

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