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A collaborative editing framework for Emacs

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README
* INTRODUCTION

  Rudel is a collaborative editing environment for GNU Emacs. Its
  purpose is to share buffers with other users in order to edit the
  contents of those buffers collaboratively. Rudel supports multiple
  backends to enable communication with other collaborative editors
  using different protocols, though currently Obby (for use with the
  Gobby editor) is the only fully-functional one.

  Since Rudel is not an application, but an extension to Emacs, it is
  not started and used like most applications (not even Emacs
  applications like Gnus). Rudel mostly works in the background to
  change the behavior of the set of Emacs buffers for which it has
  been activated.

  The user interface consists of a set of key bindings, a menu entry
  and some visual status indicators, which are added to the text,
  header line and/or mode line of buffers for which Rudel has been
  activated.

* GETTING STARTED

  Assuming Rudel has already been installed (see file:INSTALL) and
  auto loading has been set up, a global Rudel mode can be enabled as
  follows:

  : M-x global-rudel-minor-mode

  This will enable Rudel's key bindings and add a menu entry. To
  enable this mode permanently, the following fragment can be added to
  the Emacs initialization file (usually file:~/.emacs):

  #+BEGIN_SRC emacs-lisp
  (global-rudel-minor-mode 1)
  #+END_SRC

** JOINING A SESSION

   : M-x rudel-join-session [ C-c c j ]

   Depending on the installed Rudel backends, system environment and
   configuration, a number of questions will be asked, followed by an
   attempt to join session described by your answers.

   A typical example of the questions asked when joining a session may
   look like this:

   #+BEGIN_EXAMPLE
   Server: localhost RET
   Port (default 6522): RET
   Username: jan RET
   Color: light sky blue RET
   Use Encryption (y or n): n RET
   Global Password: RET
   User Password: RET
   #+END_EXAMPLE

   *IMPORTANT*: For sessions using the obby backend (like in the
   example above), the following restriction has to be taken into
   account:
   + When the server is Rudel inside an Emacs process:
     Encryption cannot be used currently in this case. Consequently
     the answer to the `Use Encryption (y or n):' prompt above has to
     be `n RET'.
   + When the server is a Gobby process:
     Gobby only supports encrypted connections. So the answer has to
     be `y RET' is this case.

   It is possible to configure frequently used sessions using the
   customization options `rudel-configured-sessions'. When one or more
   sessions are configured, `rudel-join-session' will provide choices
   like "my-configured-session", ... and "ask-protocol". Selecting
   "ask-protocol" invokes the behavior described above. Selecting one
   of the configured sessions connects to that session without asking
   for all the data.

** HOSTING A SESSION

   : M-x rudel-host-session [ C-c c h ]

   Note that the session starts out without any participating users
   (This is sometimes referred to as being a dedicated server). If you
   want to participate in the session you host, you have to join it as
   described above.

* REPORTING BUGS AND GETTING HELP

** EmacsWiki

   The EmacsWiki page about Rudel has
   [[http://www.emacswiki.org/emacs/Rudel#toc8][a section for feedback and questions]].
   Feel free leave feedback or ask questions there. If a reply does
   not occur promptly, try writing to the mailing list of visiting the
   IRC channel.

** Issue Tracker

   Bugs can be reported using the issue tracker on the sourceforge
   project page: http://sourceforge.net/tracker/?group_id=249139

** Mailing List

   Another possibility for getting help and reporting problems is
   writing to the Rudel mailing list:
   http://sourceforge.net/mail/?group_id=249139

** IRC Channel

   Rudel users and developers can also be reached on the #rudel IRC
   channel on the freenode network: irc:/irc.freenode.net:6667/#rudel

* KNOWN ISSUES

  + Publishing eshell buffers will cause your session to be
    disconnected since eshell disables the hooks that Rudel uses to
    catch changes to the buffer. As a workaround, you can use M-x
    ansi-term or another terminal emulator.

* LICENSE

  This file is part of Rudel.

  Rudel is free software: you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  Rudel is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  License for more details.

  You should have received a copy of the GNU General Public License
  along with Rudel.  If not, see <http://www.gnu.org/licenses/>.

#+STARTUP: showeverything
#+TITLE:   Rudel README
#+AUTHOR:  Jan Moringen
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