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* 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 and
mode line of buffers for which Rudel has been activated.
* GETTING STARTED
Assuming Rudel has already been installed and auto loading has been
set up, a global Rudel mode can be enabled as follows:
: M-x global-rudel-minor-mode
This will enabled Rudel's key bindings and menu entry. To enable
this mode permanently, the following fragment can be added to the
Emacs initialization file (usually .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.
* 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
Rudel is licensed under the same terms as GNU Emacs.
Local variables:
mode: org
end:
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