\input texinfo
@c %**start of header
@setfilename erc.info
@settitle ERC Manual
@c %**end of header

@dircategory Emacs
@direntry
* ERC: (erc).           Powerful, modular, and extensible IRC client for Emacs.
@end direntry

@syncodeindex fn cp

@copying
This manual is for ERC version 5.3.

Copyright @copyright{} 2005, 2006, 2007, 2008 Free Software Foundation, Inc.

@quotation
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no
Invariant Sections, Front-Cover texts, or Back-Cover Texts.

All Emacs Lisp code contained in this document may be used, distributed,
and modified without restriction.
@end quotation
@end copying

@titlepage
@title ERC manual
@subtitle a full-featured IRC client
@subtitle for GNU Emacs and XEmacs

@c The following two commands
@c start the copyright page.
@page
@vskip 0pt plus 1filll
@insertcopying
@end titlepage

@c So the toc is printed at the start
@contents

@ifnottex
@node Top, Introduction, (dir), (dir)
@comment  node-name,  next,  previous,  up
@top ERC

@insertcopying
@end ifnottex

@menu
* Introduction::                What is ERC?
* Obtaining ERC::               How to get ERC releases and development
                                  versions.
* Installation::                Compiling and installing ERC.
* Getting Started::             Quick Start guide to using ERC.
* Keystroke Summary::           Keystrokes used in ERC buffers.
* Modules::                     Available modules for ERC.
* Advanced Usage::              Cool ways of using ERC.
* Getting Help and Reporting Bugs::  
* History::                     The history of ERC.
* Copying::                     The GNU General Public License gives you
                                  permission to redistribute ERC on
                                  certain terms; it also explains that
                                  there is no warranty.
* GNU Free Documentation License::  The license for this documentation.
* Concept Index::               Search for terms.

@detailmenu
 --- The Detailed Node Listing ---

Obtaining ERC

* Releases::                    Released versions of ERC.
* Development::                 Latest unreleased development changes.

Getting Started

* Sample Session::              Example of connecting to the #emacs channel
* Special Features::            Differences from standalone IRC clients

Advanced Usage

* Connecting::                  Ways of connecting to an IRC server.
* Sample Configuration::        An example configuration file.
* Options::                     Options that are available for ERC.

@end detailmenu
@end menu

@node Introduction, Obtaining ERC, Top, Top
@comment  node-name,  next,  previous,  up
@chapter Introduction

ERC is a powerful, modular, and extensible IRC client for Emacs.

It comes with the following capabilities enabled by default.

@itemize @bullet
@item Flood control
@item Timestamps
@item Join channels automatically
@item Buttonize URLs, nicknames, and other text
@item Wrap long lines
@item Highlight or remove IRC control characters
@item Highlight pals, fools, and other keywords
@item Detect netsplits
@item Complete nicknames and commands in a programmable fashion
@item Make displayed lines read-only
@item Input history
@item Track channel activity in the mode-line

@end itemize

@node Obtaining ERC, Installation, Introduction, Top
@comment  node-name,  next,  previous,  up
@chapter Obtaining ERC

@menu
* Releases::                    Released versions of ERC.
* Development::                 Latest unreleased development changes.
@end menu

Note that some ERC files are not included with Emacs due to copyright or
dependency issues.  If desired, they may be found at the following
locations, or from your local GNU mirror.

@itemize @bullet
@item @uref{http://ftp.gnu.org/gnu/erc/erc-5.3-extras.tar.gz}
@item @uref{http://ftp.gnu.org/gnu/erc/erc-5.3-extras.zip}
@end itemize

The rest of this chapter may be skipped if you are using the version of
ERC that comes with Emacs.

@node Releases, Development, Obtaining ERC, Obtaining ERC
@comment  node-name,  next,  previous,  up
@section Releases

Choose to install a release if you want to minimize risk.

Errors are corrected in development first.  User-visible changes will be
announced on the @email{erc-discuss@@gnu.org} mailing list.
@pxref{Getting Help and Reporting Bugs}.

@cindex releases, Debian package
@cindex Debian package for ERC
Debian users can get ERC via apt-get.  The @file{erc} package is
available in the official Debian repository.

@cindex releases, from source
Alternatively, you can download the latest release from
@uref{http://ftp.gnu.org/gnu/erc}, or your local GNU mirror.

@node Development,  , Releases, Obtaining ERC
@comment  node-name,  next,  previous,  up
@section Development
@cindex development

Choose the development version if you want to live on the bleeding edge
of ERC development or try out new features before release.

@cindex git version control system, using
The git version control system allows you to keep up-to-date with the
latest changes to the development version of ERC.  It also allows you
to contribute changes (via commits, if you are have developer access to
the repository, or via patches, otherwise).  If you would like to
contribute to ERC development, it is highly recommended that you use
git.

If you are new to git, you might find this tutorial helpful:
@uref{http://www.kernel.org/pub/software/scm/git/docs/tutorial.html}.

Downloading ERC with git and staying up-to-date involves the following
steps.

@enumerate
@item Install git.

@itemize @bullet
@item Debian and Ubuntu: @kbd{apt-get install git-core}.
@item Windows: @uref{http://git.or.cz/gitwiki/WindowsInstall}.
@item Other operating systems: download, compile, and install the source
from @uref{http://www.kernel.org/pub/software/scm/git/}, or find a git
package for your operating system.
@end itemize

@item Download the ERC development branch.

If you have developer access to ERC, do:

@example
git clone ssh://loginname@@git.sv.gnu.org/srv/git/erc.git
@end example

otherwise, do:

@example
git clone git://git.sv.gnu.org/erc.git
@end example

If you are behind a restrictive firewall, and do not have developer
access, then do the following instead:

@example
git clone http://git.sv.gnu.org/r/erc.git
@end example

@item List upstream changes that are missing from your local copy.
Do this whenever you want to see whether new changes have been committed
to ERC.  If you wish, you may skip this step and proceed directly to
the ``update'' step.

@example
# Change to the source directory you are interested in.
cd erc

# Fetch new changes from the repository, but don't apply them yet
git fetch origin

# Display log messages for the new changes
git log HEAD..origin
@end example

``origin'' is git's name for the location where you originally got ERC
from.  You can change this location at any time by editing the
@file{.git/config} file in the directory where the ERC source was
placed.

@cindex updating ERC with git
@item Update to the latest version by pulling in any missing changes.

@example
cd erc
git pull origin
@end example

git will show how many files changed, and will provide a visual display
for how many lines were changed in each file.

@end enumerate

There are other ways to interact with the ERC repository.

@itemize
@item Browse git repo: @uref{http://git.sv.gnu.org/gitweb/?p=erc.git}
@item Latest development snapshot: @uref{http://mwolson.org/static/dist/erc-latest.tar.gz}
@item Latest development snapshot (zip file): @uref{http://mwolson.org/static/dist/erc-latest.zip}
@end itemize

The latest development snapshot can lag behind the git repo by as much
as 20 minutes, but never more than that.

For further information on committing changes to ERC and performing
development, please consult
@uref{http://emacswiki.org/cgi-bin/wiki/ErcDevelopment}.


@node Installation, Getting Started, Obtaining ERC, Top
@comment  node-name,  next,  previous,  up
@chapter Installation

ERC may be compiled and installed on your machine.

This section may be skipped if you are using the version of ERC that
comes with Emacs.

@subsubheading Compilation

This is an optional step, since Emacs Lisp source code does not
necessarily have to be byte-compiled.  It will yield a speed increase,
though.

A working copy of Emacs or XEmacs is needed in order to compile ERC.  By
default, the program that is installed with the name @command{emacs}
will be used.

If you want to use the @command{xemacs} binary to perform the
compilation, you would need to edit @file{Makefile} in the top-level
directory as follows.  You can put either a full path to an Emacs or
XEmacs binary or just the command name, as long as it is in the
@env{PATH}.

@example
EMACS    = xemacs
SITEFLAG = -no-site-file
@end example

Running @code{make} should compile the ERC source files in the
@file{lisp} directory.

@subsubheading Installation

ERC may be installed into your file hierarchy by doing the following.

Edit the @file{Makefile} file so that @env{ELISPDIR} points to where you
want the source and compiled ERC files to be installed and
@env{INFODIR} indicates where to put the ERC manual.  Of course, you
will want to edit @env{EMACS} and @env{SITEFLAG} as shown in the
Compilation section if you are using XEmacs.

If you are installing ERC on a Debian system, you might want to change
the value of @env{INSTALLINFO} as specified in @file{Makefile}.

Run @code{make} as a normal user.

Run @code{make install} as the root user if you have chosen installation
locations that require this.


@node Getting Started, Keystroke Summary, Installation, Top
@comment  node-name,  next,  previous,  up
@chapter Getting Started
@cindex settings

To use ERC, add the directory containing its files to your
@code{load-path} variable, in your @file{.emacs} file.  Then, load ERC
itself.  An example follows.

@lisp
(require 'erc)
@end lisp

Once ERC is loaded, the command @kbd{M-x erc} will start ERC and
prompt for the server to connect to.

If you want to place ERC settings in their own file, you can place them
in @file{~/.emacs.d/.ercrc.el}, creating it if necessary.

If you would rather use the Customize interface to change how ERC works,
do @kbd{M-x customize-group RET erc RET}.  In particular, ERC comes with
lots of modules that may be enabled or disabled; to select which ones
you want, do @kbd{M-x customize-variable RET erc-modules RET}.

@menu
* Sample Session::              Example of connecting to the #emacs channel
* Special Features::            Differences from standalone IRC clients
@end menu

@node Sample Session, Special Features, Getting Started, Getting Started
@comment  node-name,  next,  previous,  up
@section Sample Session

This is an example ERC session which shows how to connect to the #emacs
channel on Freenode.  Another IRC channel on Freenode that may be of
interest is #erc, which is a channel where ERC users and developers hang
out.

@itemize @bullet

@item Connect to Freenode

Run @kbd{M-x erc}.  Use ``irc.freenode.net'' as the IRC server, ``6667''
as the port, and choose a nickname.

@item Get used to the interface

Switch to the ``irc.freenode.net:6667'' buffer, if you're not already
there.  You will see first some messages about checking for ident, and
then a bunch of other messages that describe the current IRC server.

@item Join the #emacs channel

In that buffer, type ``/join SPC #emacs'' and hit @kbd{RET}.  Depending
on how you've set up ERC, either a new buffer for ``#emacs'' will be
displayed, or a new buffer called ``#emacs'' will be created in the
background.  If the latter, switch to the ``#emacs'' buffer.  You will
see the channel topic and a list of the people who are currently on the
channel.

@item Register your nickname with Freenode

If you would like to be able to talk with people privately on the
Freenode network, you will have to ``register'' your nickname.  To do
so, switch to the ``irc.freenode.net:6667'' buffer and type ``/msg
NickServ register <password>'', replacing ``<password>'' with your
desired password.  It should tell you that the operation was successful.

@item Talk to people in the channel

If you switch back to the ``#emacs'' buffer, you can type a message, and
everyone on the channel will see it.

@item Open a query buffer to talk to someone

If you want to talk with someone in private (this should usually not be
done for technical help, only for personal questions), type ``/query
<nick>'', replacing ``<nick>'' with the nickname of the person you would
like to talk to.  Depending on how ERC is set up, you will either see a
new buffer with the name of the person, or such a buffer will be created
in the background and you will have to switch to it.  Begin typing
messages, and you will be able to have a conversation.

Note that if the other person is not registered, you will not be able to
talk with them.

@end itemize

@node Special Features, , Sample Session, Getting Started
@comment  node-name,  next,  previous,  up
@section Special Features

ERC has some features that distinguish it from some IRC clients.

@itemize @bullet

@item multiple channels and multiple servers

Every channel is put in a separate buffer.  Several IRC servers may be
connected to at the same time.

@cindex query buffers
@item private message separation

Private conversations are treated as channels, and are put into separate
buffers in Emacs.  We call these ``query buffers''.

@item highlighting

Some occurrences of words can be highlighted, which makes it easier to
track different kinds of conversations.

@item notification

ERC can notify you that certain users are online.

@item channel tracking

Channels can be hidden and conversation continue in the background.  You
are notified when something is said in such a channel that is not
currently visible.  This makes it easy to get Real Work done while still
maintaining an IRC presence.

@item nick completion

ERC can complete words upon hitting @kbd{TAB}, which eases the writing
of nicknames in messages.

@cindex history ring
@item history

Past actions are kept in history rings for future use.  To navigate a
history ring, hit @kbd{M-p} to go backwards and @kbd{M-n} to go
forwards.

@item multiple languages

Different channels and servers may have different language encodings.

In addition, it is possible to translate the messages that ERC uses into
multiple languages.  Please contact the developers of ERC at
@email{erc-discuss@@gnu.org} if you are interested in helping with the
translation effort.

@item user scripting

Users can load scripts (e.g. auto greeting scripts) when ERC starts up.

It is also possible to make custom IRC commands, if you know a little
Emacs Lisp.  Just make an Emacs Lisp function and call it
@code{erc-cmd-NEWCOMMAND}, where @code{NEWCOMMAND} is the name of the
new command in capital letters.

@item auto reconnect

If the connection goes away at some point, ERC will try to reconnect
automatically.  If it fails to reconnect, and you want to try to
manually reestablish the connection at some later point, switch to an
ERC  buffer and run the @code{/RECONNECT} command.

@end itemize


@node Keystroke Summary, Modules, Getting Started, Top
@comment  node-name,  next,  previous,  up
@chapter Keys Used in ERC
@cindex keystrokes

This is a summary of keystrokes available in every ERC buffer.

@table @kbd

@item C-a or <home> (`erc-bol')
Go to beginning of line or end of prompt.

@item RET (`erc-send-current-line')
Send the current line

@item TAB (`erc-complete-word')
If at prompt, complete the current word.
Otherwise, move to the next link or button.

@item M-TAB (`ispell-complete-word')
Complete the given word, using ispell.

@item C-c C-a (`erc-bol')
Go to beginning of line or end of prompt.

@item C-c C-b (`erc-iswitchb')
Use `iswitchb-read-buffer' to prompt for a ERC buffer to switch to.

@item C-c C-c (`erc-toggle-interpret-controls')
Toggle interpretation of control sequences in messages.

@item C-c C-d (`erc-input-action')
Interactively input a user action and send it to IRC.

@item C-c C-e (`erc-toggle-ctcp-autoresponse')
Toggle automatic CTCP replies (like VERSION and PING).

@item C-c C-f (`erc-toggle-flood-control')
Toggle use of flood control on sent messages.

@item C-c TAB (`erc-invite-only-mode')
Turn on the invite only mode (+i) for the current channel.

@item C-c C-j (`erc-join-channel')
Join channel.  If point is at the beginning of a channel name, use that
as default.

@item C-c C-k (`erc-go-to-log-matches-buffer')
Interactively open an erc-log-matches buffer

@item C-c C-l (`erc-save-buffer-in-logs')
Append buffer contents to the log file, if logging is enabled.

@item C-c C-n (`erc-channel-names')
Run "/names #channel" in the current channel.

@item C-c C-o (`erc-get-channel-mode-from-keypress')
Read a key sequence and call the corresponding channel mode function.
After doing @kbd{C-c C-o}, type in a channel mode letter.

@kbd{C-g} means quit.
@kbd{RET} lets you type more than one mode at a time.
If @kbd{l} is pressed, @code{erc-set-channel-limit} gets called.
If @kbd{k} is pressed, @code{erc-set-channel-key} gets called.
Anything else will be sent to `erc-toggle-channel-mode'.

@item C-c C-p (`erc-part-from-channel')
Part from the current channel and prompt for a reason.

@item C-c C-q (`erc-quit-server')
Disconnect from current server after prompting for reason.

@item C-c C-r (`erc-remove-text-properties-region')
Clears the region (start,end) in object from all colors, etc.

@item C-c C-t (`erc-set-topic')
Prompt for a topic for the current channel.

@item C-c C-u (`erc-kill-input')
Kill current input line using `erc-bol' followed by `kill-line'.

@end table


@node Modules, Advanced Usage, Keystroke Summary, Top
@comment  node-name,  next,  previous,  up
@chapter Modules
@cindex modules

One way to add functionality to ERC is to customize which of its many
modules are loaded.

There is a spiffy customize interface, which may be reached by typing
@kbd{M-x customize-option erc-modules RET}.  Alternatively, set
@code{erc-modules} manually and then call @code{erc-update-modules}.

The following is a list of available modules.

@table @code

@cindex modules, autoaway
@item autoaway
Set away status automatically

@cindex modules, autojoin
@item autojoin
Join channels automatically

@cindex modules, bbdb
@item bbdb
Integrate with the Big Brother Database

@cindex modules, button
@item button
Buttonize URLs, nicknames, and other text

@cindex modules, capab-identify
@item capab-identify
Mark unidentified users on freenode and other servers supporting CAPAB.

@cindex modules, completion
@cindex modules, pcomplete
@item completion (aka pcomplete)
Complete nicknames and commands (programmable)

@cindex modules, fill
@item fill
Wrap long lines

@cindex modules, hecomplete
@item hecomplete
Complete nicknames and commands (old).  This is the old module---you
might prefer the ``completion'' module instead.

@cindex modules, identd
@item identd
Launch an identd server on port 8113

@cindex modules, irccontrols
@item irccontrols
Highlight or remove IRC control characters

@cindex modules, list
@item list
List channels nicely in a separate buffer

@cindex modules, log
@item log
Save buffers in logs

@cindex modules, match
@item match
Highlight pals, fools, and other keywords

@cindex modules, menu
@item menu
Display a menu in ERC buffers

@cindex modules, netsplit
@item netsplit
Detect netsplits

@cindex modules, noncommands
@item noncommands
Don't display non-IRC commands after evaluation

@cindex modules, notify
@item notify
Notify when the online status of certain users changes

@cindex modules, page
@item page
Process CTCP PAGE requests from IRC

@cindex modules, readonly
@item readonly
Make displayed lines read-only

@cindex modules, replace
@item replace
Replace text in messages

@cindex modules, ring
@item ring
Enable an input history

@cindex modules, scrolltobottom
@item scrolltobottom
Scroll to the bottom of the buffer

@cindex modules, services
@item services
Identify to Nickserv (IRC Services) automatically

@cindex modules, smiley
@item smiley
Convert smileys to pretty icons

@cindex modules, sound
@item sound
Play sounds when you receive CTCP SOUND requests

@cindex modules, spelling
@item spelling
Check spelling of messages

@cindex modules, stamp
@item stamp
Add timestamps to messages

@cindex modules, track
@item track
Track channel activity in the mode-line

@cindex modules, truncate
@item truncate
Truncate buffers to a certain size

@cindex modules, unmorse
@item unmorse
Translate morse code in messages

@end table

@c PRE5_3: Document every option of every module in its own subnode


@node Advanced Usage, Getting Help and Reporting Bugs, Modules, Top
@comment  node-name,  next,  previous,  up
@chapter Advanced Usage
@cindex advanced topics

@menu
* Connecting::                  Ways of connecting to an IRC server.
* Sample Configuration::        An example configuration file.
* Options::                     Options that are available for ERC.
@end menu

@node Connecting, Sample Configuration, Advanced Usage, Advanced Usage
@comment  node-name,  next,  previous,  up
@section Connecting to an IRC Server
@cindex connecting

The easiest way to connect to an IRC server is to call @kbd{M-x erc}.
If you want to assign this function to a keystroke, the following will
help you figure out its parameters.

@defun erc
Select connection parameters and run ERC.
Non-interactively, it takes the following keyword arguments.

@itemize @bullet
@item @var{server}
@item @var{port}
@item @var{nick}
@item @var{password}
@item @var{full-name}
@end itemize

That is, if called with the following arguments, @var{server} and
@var{full-name} will be set to those values, whereas
@code{erc-compute-port}, @code{erc-compute-nick} and
@code{erc-compute-full-name} will be invoked for the values of the other
parameters.

@example
(erc :server "irc.freenode.net" :full-name "Harry S Truman")
@end example
@end defun

@subheading Server

@defun erc-compute-server &optional server
Return an IRC server name.

This tries a number of increasingly more default methods until a non-nil
value is found.

@itemize @bullet
@item @var{server} (the argument passed to this function)
@item The @code{erc-server} option
@item The value of the IRCSERVER environment variable
@item The @code{erc-default-server} variable
@end itemize

@end defun

@defopt erc-server nil
IRC server to use if one is not provided.
@end defopt

@subheading Port

@defun erc-compute-port &optional port
Return a port for an IRC server.

This tries a number of increasingly more default methods until a non-nil
value is found.

@itemize @bullet
@item @var{port} (the argument passed to this function)
@item The @code{erc-port} option
@item The @code{erc-default-port} variable
@end itemize

@end defun

@defopt erc-port
IRC port to use if not specified.

This can be either a string or a number.
@end defopt

@subheading Nick

@defun erc-compute-nick &optional nick
Return user's IRC nick.

This tries a number of increasingly more default methods until a
non-nil value is found.

@itemize
@item @var{nick} (the argument passed to this function)
@item The @code{erc-nick} option
@item The value of the IRCNICK environment variable
@item The result from the @code{user-login-name} function
@end itemize

@end defun

@defopt erc-nick
Nickname to use if one is not provided.

This can be either a string, or a list of strings.
In the latter case, if the first nick in the list is already in use,
other nicks are tried in the list order.
@end defopt

@defopt erc-nick-uniquifier
The string to append to the nick if it is already in use.
@end defopt

@defopt erc-try-new-nick-p
If the nickname you chose isn't available, and this option is non-nil,
ERC should automatically attempt to connect with another nickname.

You can manually set another nickname with the /NICK command.
@end defopt

@subheading Full name

@defun erc-compute-full-name &optional full-name
Return user's full name.

This tries a number of increasingly more default methods until a
non-nil value is found.

@itemize @bullet
@item @var{full-name} (the argument passed to this function)
@item The @code{erc-user-full-name} option
@item The value of the IRCNAME environment variable
@item The result from the @code{user-full-name} function
@end itemize

@end defun

@defopt erc-user-full-name
User full name.

This can be either a string or a function to call.
@end defopt

@node Sample Configuration, Options, Connecting, Advanced Usage
@comment  node-name,  next,  previous,  up
@section Sample Configuration
@cindex configuration, sample

Here is an example of configuration settings for ERC.  This can go into
your Emacs configuration file.  Everything after the @code{(require
'erc)} command can optionally go into @file{~/.emacs.d/.ercrc.el}.

@lisp
;;; Sample ERC configuration

;; Add the ERC directory to load path -- you don't need this if you are
;; using the version of ERC that comes with Emacs
(add-to-list 'load-path "~/elisp/erc")

;; Load ERC
(require 'erc)

;; Load authentication info from an external source.  Put sensitive
;; passwords and the like in here.
(load "~/.emacs.d/.erc-auth")

;; This is an example of how to make a new command.  Type "/uptime" to
;; use it.
(defun erc-cmd-UPTIME (&rest ignore)
  "Display the uptime of the system, as well as some load-related
stuff, to the current ERC buffer."
  (let ((uname-output
         (replace-regexp-in-string
          ", load average: " "] @{Load average@} ["
          ;; Collapse spaces, remove
          (replace-regexp-in-string
           " +" " "
           ;; Remove beginning and trailing whitespace
           (replace-regexp-in-string
            "^ +\\|[ \n]+$" ""
            (shell-command-to-string "uptime"))))))
    (erc-send-message
     (concat "@{Uptime@} [" uname-output "]"))))

;; This causes ERC to connect to the Freenode network upon hitting
;; C-c e f.  Replace MYNICK with your IRC nick.
(global-set-key "\C-cef" (lambda () (interactive)
                           (erc :server "irc.freenode.net" :port "6667"
                                :nick "MYNICK")))

;; This causes ERC to connect to the IRC server on your own machine (if
;; you have one) upon hitting C-c e b.  Replace MYNICK with your IRC
;; nick.  Often, people like to run bitlbee (http://bitlbee.org/) as an
;; AIM/Jabber/MSN to IRC gateway, so that they can use ERC to chat with
;; people on those networks.
(global-set-key "\C-ceb" (lambda () (interactive)
                           (erc :server "localhost" :port "6667"
                                :nick "MYNICK")))

;; Make C-c RET (or C-c C-RET) send messages instead of RET. This has
;; been commented out to avoid confusing new users.
;; (define-key erc-mode-map (kbd "RET") nil)
;; (define-key erc-mode-map (kbd "C-c RET") 'erc-send-current-line)
;; (define-key erc-mode-map (kbd "C-c C-RET") 'erc-send-current-line)

;;; Options

;; Join the #emacs and #erc channels whenever connecting to Freenode.
(setq erc-autojoin-channels-alist '(("freenode.net" "#emacs" "#erc")))

;; Interpret mIRC-style color commands in IRC chats
(setq erc-interpret-mirc-color t)

;; The following are commented out by default, but users of other
;; non-Emacs IRC clients might find them useful.
;; Kill buffers for channels after /part
;; (setq erc-kill-buffer-on-part t)
;; Kill buffers for private queries after quitting the server
;; (setq erc-kill-queries-on-quit t)
;; Kill buffers for server messages after quitting the server
;; (setq erc-kill-server-buffer-on-quit t)
@end lisp

@node Options, , Sample Configuration, Advanced Usage
@comment  node-name,  next,  previous,  up
@section Options
@cindex options

@c PRE5_3: (Node) Document every ERC option (module options go in
@c previous chapter)

This section has not yet been written.  For now, the easiest way to
check out the available options for ERC is to do
@kbd{M-x customize-group erc RET}.


@node Getting Help and Reporting Bugs, History, Advanced Usage, Top
@comment  node-name,  next,  previous,  up
@chapter Getting Help and Reporting Bugs
@cindex help, getting
@cindex bugs, reporting

After you have read this guide, if you still have questions about ERC,
or if you have bugs to report, there are several places you can go.

@itemize @bullet

@item
@uref{http://www.emacswiki.org/cgi-bin/wiki/ERC} is the
emacswiki.org page for ERC.  Anyone may add tips, hints, or bug
descriptions to it.

@item
There are several mailing lists for ERC.  To subscribe, visit
@uref{http://savannah.gnu.org/mail/?group=erc}.

The mailing lists are also available on Gmane.
(@url{http://gmane.org/}).  Gmane provides additional methods for
accessing the mailing lists, adding content to them, and searching them.

@enumerate
@item gmane.emacs.erc.announce: Announcements

@item gmane.emacs.erc.discuss: General discussion

@item gmane.emacs.erc.cvs: Log messages for changes to the ERC source code

@end enumerate

@item
You can visit the IRC Freenode channel @samp{#emacs}. Many of the
contributors are frequently around and willing to answer your
questions.

@end itemize


@node History, Copying, Getting Help and Reporting Bugs, Top
@comment  node-name,  next,  previous,  up
@chapter History
@cindex history, of ERC

ERC was originally written by Alexander L. Belikoff
@email{abel@@bfr.co.il} and Sergey Berezin
@email{sergey.berezin@@cs.cmu.edu}.  They stopped development around
December 1999.  Their last released version was ERC 2.0.

P.S.: If one of the original developers of ERC reads this, we'd like to
receive additional information for this file and hear comments in
general.

@itemize
@item 2001

In June 2001, Mario Lang @email{mlang@@delysid.org} and Alex Schroeder
@email{alex@@gnu.org} took over development and created a ERC Project at
@uref{http://sourceforge.net/projects/erc}.

In reaction to a mail about the new ERC development effort, Sergey
Berezin said, ``First of all, I'm glad that my version of ERC is being
used out there.  The thing is, I do not have free time and enough
incentive anymore to work on ERC, so I would be happy if you guys take
over the project entirely.''

So we happily hacked away on ERC, and soon after (September 2001)
released the next "stable" version, 2.1.

Most of the development of the new ERC happened on #emacs on
irc.openprojects.net.  Over time, many people contributed code, ideas,
bugfixes, and a lot of alpha/beta/gamma testing.

See the @file{CREDITS} file for a list of contributors.

@item 2003

ERC 3.0 was released.

@item 2004

ERC 4.0 was released.

@item 2005

ERC 5.0 was released.  Michael Olson @email{mwolson@@gnu.org} became
the release manager and eventually the maintainer.

After some discussion between him and the Emacs developers, it was
decided to include ERC in Emacs.

@item 2006

ERC 5.1 was released.  It was subsequently included in Emacs 22.

ERC became an official GNU project, and development moved to
@uref{http://sv.gnu.org/projects/erc}.  We switched to using GNU Arch as
our revision control system.  Our mailing list address changed as well.

@item 2007

We switched to using git for our version control system.

@end itemize

@node Copying, GNU Free Documentation License, History, Top
@comment  node-name,  next,  previous,  up
@unnumbered GNU General Public License
@center Version 3, 29 June 2007

@c This file is intended to be included in another file.

@display
Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/}

Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.
@end display

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@enumerate a
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@end enumerate

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permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work.  The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.

@item Revised Versions of this License.

The Free Software Foundation may publish revised and/or new versions
of the GNU General Public License from time to time.  Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.

Each version is given a distinguishing version number.  If the Program
specifies that a certain numbered version of the GNU General Public
License ``or any later version'' applies to it, you have the option of
following the terms and conditions either of that numbered version or
of any later version published by the Free Software Foundation.  If
the Program does not specify a version number of the GNU General
Public License, you may choose any version ever published by the Free
Software Foundation.

If the Program specifies that a proxy can decide which future versions
of the GNU General Public License can be used, that proxy's public
statement of acceptance of a version permanently authorizes you to
choose that version for the Program.

Later license versions may give you additional or different
permissions.  However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.

@item Disclaimer of Warranty.

THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND
PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE
DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
CORRECTION.

@item Limitation of Liability.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

@item Interpretation of Sections 15 and 16.

If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

@end enumerate

@heading END OF TERMS AND CONDITIONS

@heading How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these
terms.

To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the ``copyright'' line and a pointer to where the full notice is found.

@smallexample
@var{one line to give the program's name and a brief idea of what it does.}  
Copyright (C) @var{year} @var{name of author}

This program 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.

This program 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 this program.  If not, see @url{http://www.gnu.org/licenses/}.
@end smallexample

Also add information on how to contact you by electronic and paper mail.

If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:

@smallexample
@var{program} Copyright (C) @var{year} @var{name of author} 
This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}.
This is free software, and you are welcome to redistribute it
under certain conditions; type @samp{show c} for details.
@end smallexample

The hypothetical commands @samp{show w} and @samp{show c} should show
the appropriate parts of the General Public License.  Of course, your
program's commands might be different; for a GUI interface, you would
use an ``about box''.

You should also get your employer (if you work as a programmer) or school,
if any, to sign a ``copyright disclaimer'' for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
@url{http://www.gnu.org/licenses/}.

The GNU General Public License does not permit incorporating your
program into proprietary programs.  If your program is a subroutine
library, you may consider it more useful to permit linking proprietary
applications with the library.  If this is what you want to do, use
the GNU Lesser General Public License instead of this License.  But
first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}.


@node GNU Free Documentation License, Concept Index, Copying, Top
@comment  node-name,  next,  previous,  up
@unnumbered GNU Free Documentation License
@center Version 1.2, November 2002

@display
Copyright (C) 2000,2001,2002  Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
@end display
@sp 1
@enumerate 0
@item
PREAMBLE

The purpose of this License is to make a manual, textbook, or other
functional and useful document ``free'' in the sense of freedom: to
assure everyone the effective freedom to copy and redistribute it,
with or without modifying it, either commercially or noncommercially.
Secondarily, this License preserves for the author and publisher a way
to get credit for their work, while not being considered responsible
for modifications made by others.

This License is a kind of ``copyleft'', which means that derivative
works of the document must themselves be free in the same sense.  It
complements the GNU General Public License, which is a copyleft
license designed for free software.

We have designed this License in order to use it for manuals for free
software, because free software needs free documentation: a free
program should come with manuals providing the same freedoms that the
software does.  But this License is not limited to software manuals;
it can be used for any textual work, regardless of subject matter or
whether it is published as a printed book.  We recommend this License
principally for works whose purpose is instruction or reference.

@sp 1
@item
APPLICABILITY AND DEFINITIONS

This License applies to any manual or other work, in any medium, that
contains a notice placed by the copyright holder saying it can be
distributed under the terms of this License.  Such a notice grants a
world-wide, royalty-free license, unlimited in duration, to use that
work under the conditions stated herein.  The ``Document'', below,
refers to any such manual or work.  Any member of the public is a
licensee, and is addressed as ``you''.  You accept the license if you
copy, modify or distribute the work in a way requiring permission
under copyright law.

A ``Modified Version'' of the Document means any work containing the
Document or a portion of it, either copied verbatim, or with
modifications and/or translated into another language.

A ``Secondary Section'' is a named appendix or a front-matter section of
the Document that deals exclusively with the relationship of the
publishers or authors of the Document to the Document's overall subject
(or to related matters) and contains nothing that could fall directly
within that overall subject.  (Thus, if the Document is in part a
textbook of mathematics, a Secondary Section may not explain any
mathematics.)  The relationship could be a matter of historical
connection with the subject or with related matters, or of legal,
commercial, philosophical, ethical or political position regarding
them.

The ``Invariant Sections'' are certain Secondary Sections whose titles
are designated, as being those of Invariant Sections, in the notice
that says that the Document is released under this License.  If a
section does not fit the above definition of Secondary then it is not
allowed to be designated as Invariant.  The Document may contain zero
Invariant Sections.  If the Document does not identify any Invariant
Sections then there are none.

The ``Cover Texts'' are certain short passages of text that are listed,
as Front-Cover Texts or Back-Cover Texts, in the notice that says that
the Document is released under this License.  A Front-Cover Text may
be at most 5 words, and a Back-Cover Text may be at most 25 words.

A ``Transparent'' copy of the Document means a machine-readable copy,
represented in a format whose specification is available to the
general public, that is suitable for revising the document
straightforwardly with generic text editors or (for images composed of
pixels) generic paint programs or (for drawings) some widely available
drawing editor, and that is suitable for input to text formatters or
for automatic translation to a variety of formats suitable for input
to text formatters.  A copy made in an otherwise Transparent file
format whose markup, or absence of markup, has been arranged to thwart
or discourage subsequent modification by readers is not Transparent.
An image format is not Transparent if used for any substantial amount
of text.  A copy that is not ``Transparent'' is called ``Opaque.''


Examples of suitable formats for Transparent copies include plain
ASCII without markup, Texinfo input format, LaTeX input format, SGML
or XML using a publicly available DTD, and standard-conforming simple
HTML, PostScript or PDF designed for human modification.  Examples of
transparent image formats include PNG, XCF and JPG.  Opaque formats
include proprietary formats that can be read and edited only by
proprietary word processors, SGML or XML for which the DTD and/or
processing tools are not generally available, and the
machine-generated HTML, PostScript or PDF produced by some word
processors for output purposes only.

The ``Title Page'' means, for a printed book, the title page itself,
plus such following pages as are needed to hold, legibly, the material
this License requires to appear in the title page.  For works in
formats which do not have any title page as such, ``Title Page'' means
the text near the most prominent appearance of the work's title,
preceding the beginning of the body of the text.

A section ``Entitled XYZ'' means a named subunit of the Document whose
title either is precisely XYZ or contains XYZ in parentheses following
text that translates XYZ in another language.  (Here XYZ stands for a
specific section name mentioned below, such as ``Acknowledgements'',
``Dedications'', ``Endorsements'', or ``History''.)  To ``Preserve the Title''
of such a section when you modify the Document means that it remains a
section ``Entitled XYZ'' according to this definition.

The Document may include Warranty Disclaimers next to the notice which
states that this License applies to the Document.  These Warranty
Disclaimers are considered to be included by reference in this
License, but only as regards disclaiming warranties: any other
implication that these Warranty Disclaimers may have is void and has
no effect on the meaning of this License.
@sp 1
@item
VERBATIM COPYING

You may copy and distribute the Document in any medium, either
commercially or noncommercially, provided that this License, the
copyright notices, and the license notice saying this License applies
to the Document are reproduced in all copies, and that you add no other
conditions whatsoever to those of this License.  You may not use
technical measures to obstruct or control the reading or further
copying of the copies you make or distribute.  However, you may accept
compensation in exchange for copies.  If you distribute a large enough
number of copies you must also follow the conditions in section 3.

You may also lend copies, under the same conditions stated above, and
you may publicly display copies.
@sp 1
@item
COPYING IN QUANTITY

If you publish printed copies (or copies in media that commonly have
printed covers) of the Document, numbering more than 100, and the
Document's license notice requires Cover Texts, you must enclose the
copies in covers that carry, clearly and legibly, all these Cover
Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
the back cover.  Both covers must also clearly and legibly identify
you as the publisher of these copies.  The front cover must present
the full title with all words of the title equally prominent and
visible.  You may add other material on the covers in addition.
Copying with changes limited to the covers, as long as they preserve
the title of the Document and satisfy these conditions, can be treated
as verbatim copying in other respects.

If the required texts for either cover are too voluminous to fit
legibly, you should put the first ones listed (as many as fit
reasonably) on the actual cover, and continue the rest onto adjacent
pages.

If you publish or distribute Opaque copies of the Document numbering
more than 100, you must either include a machine-readable Transparent
copy along with each Opaque copy, or state in or with each Opaque copy
a computer-network location from which the general network-using
public has access to download using public-standard network protocols
a complete Transparent copy of the Document, free of added material.
If you use the latter option, you must take reasonably prudent steps,
when you begin distribution of Opaque copies in quantity, to ensure
that this Transparent copy will remain thus accessible at the stated
location until at least one year after the last time you distribute an
Opaque copy (directly or through your agents or retailers) of that
edition to the public.

It is requested, but not required, that you contact the authors of the
Document well before redistributing any large number of copies, to give
them a chance to provide you with an updated version of the Document.
@sp 1
@item
MODIFICATIONS

You may copy and distribute a Modified Version of the Document under
the conditions of sections 2 and 3 above, provided that you release
the Modified Version under precisely this License, with the Modified
Version filling the role of the Document, thus licensing distribution
and modification of the Modified Version to whoever possesses a copy
of it.  In addition, you must do these things in the Modified Version:

A. Use in the Title Page (and on the covers, if any) a title distinct
   from that of the Document, and from those of previous versions
   (which should, if there were any, be listed in the History section
   of the Document).  You may use the same title as a previous version
   if the original publisher of that version gives permission.@*
B. List on the Title Page, as authors, one or more persons or entities
   responsible for authorship of the modifications in the Modified
   Version, together with at least five of the principal authors of the
   Document (all of its principal authors, if it has fewer than five),
   unless they release you from this requirement.@*
C. State on the Title page the name of the publisher of the
   Modified Version, as the publisher.@*
D. Preserve all the copyright notices of the Document.@*
E. Add an appropriate copyright notice for your modifications
   adjacent to the other copyright notices.@*
F. Include, immediately after the copyright notices, a license notice
   giving the public permission to use the Modified Version under the
   terms of this License, in the form shown in the Addendum below.@*
G. Preserve in that license notice the full lists of Invariant Sections
   and required Cover Texts given in the Document's license notice.@*
H. Include an unaltered copy of this License.@*
I. Preserve the section Entitled ``History'', Preserve its Title, and add
   to it an item stating at least the title, year, new authors, and
   publisher of the Modified Version as given on the Title Page.  If
   there is no section Entitled ``History'' in the Document, create one
   stating the title, year, authors, and publisher of the Document as
   given on its Title Page, then add an item describing the Modified
   Version as stated in the previous sentence.@*
J. Preserve the network location, if any, given in the Document for
   public access to a Transparent copy of the Document, and likewise
   the network locations given in the Document for previous versions
   it was based on.  These may be placed in the ``History'' section.
   You may omit a network location for a work that was published at
   least four years before the Document itself, or if the original
   publisher of the version it refers to gives permission.@*
K. For any section Entitled ``Acknowledgements'' or ``Dedications'',
   Preserve the Title of the section, and preserve in the section all
   the substance and tone of each of the contributor acknowledgements
   and/or dedications given therein.@*
L. Preserve all the Invariant Sections of the Document,
   unaltered in their text and in their titles.  Section numbers
   or the equivalent are not considered part of the section titles.@*
M. Delete any section Entitled ``Endorsements.''  Such a section
   may not be included in the Modified Version.@*
N. Do not retitle any existing section to be Entitled ``Endorsements''
   or to conflict in title with any Invariant Section.@*
O. Preserve any Warranty Disclaimers.@*
@sp 1
If the Modified Version includes new front-matter sections or
appendices that qualify as Secondary Sections and contain no material
copied from the Document, you may at your option designate some or all
of these sections as invariant.  To do this, add their titles to the
list of Invariant Sections in the Modified Version's license notice.
These titles must be distinct from any other section titles.

You may add a section Entitled ``Endorsements'', provided it contains
nothing but endorsements of your Modified Version by various
parties--for example, statements of peer review or that the text has
been approved by an organization as the authoritative definition of a
standard.

You may add a passage of up to five words as a Front-Cover Text, and a
passage of up to 25 words as a Back-Cover Text, to the end of the list
of Cover Texts in the Modified Version.  Only one passage of
Front-Cover Text and one of Back-Cover Text may be added by (or
through arrangements made by) any one entity.  If the Document already
includes a cover text for the same cover, previously added by you or
by arrangement made by the same entity you are acting on behalf of,
you may not add another; but you may replace the old one, on explicit
permission from the previous publisher that added the old one.

The author(s) and publisher(s) of the Document do not by this License
give permission to use their names for publicity for or to assert or
imply endorsement of any Modified Version.
@sp 1
@item
COMBINING DOCUMENTS

You may combine the Document with other documents released under this
License, under the terms defined in section 4 above for modified
versions, provided that you include in the combination all of the
Invariant Sections of all of the original documents, unmodified, and
list them all as Invariant Sections of your combined work in its
license notice, and that you preserve all their Warranty Disclaimers.

The combined work need only contain one copy of this License, and
multiple identical Invariant Sections may be replaced with a single
copy.  If there are multiple Invariant Sections with the same name but
different contents, make the title of each such section unique by
adding at the end of it, in parentheses, the name of the original
author or publisher of that section if known, or else a unique number.
Make the same adjustment to the section titles in the list of
Invariant Sections in the license notice of the combined work.

In the combination, you must combine any sections Entitled ``History''
in the various original documents, forming one section Entitled
``History''; likewise combine any sections Entitled ``Acknowledgements'',
and any sections Entitled ``Dedications.''  You must delete all sections
Entitled ``Endorsements.''
@sp 1
@item
COLLECTIONS OF DOCUMENTS

You may make a collection consisting of the Document and other documents
released under this License, and replace the individual copies of this
License in the various documents with a single copy that is included in
the collection, provided that you follow the rules of this License for
verbatim copying of each of the documents in all other respects.

You may extract a single document from such a collection, and distribute
it individually under this License, provided you insert a copy of this
License into the extracted document, and follow this License in all
other respects regarding verbatim copying of that document.
@sp 1
@item
AGGREGATION WITH INDEPENDENT WORKS

A compilation of the Document or its derivatives with other separate
and independent documents or works, in or on a volume of a storage or
distribution medium, is called an ``aggregate'' if the copyright
resulting from the compilation is not used to limit the legal rights
of the compilation's users beyond what the individual works permit.
When the Document is included in an aggregate, this License does not
apply to the other works in the aggregate which are not themselves
derivative works of the Document.

If the Cover Text requirement of section 3 is applicable to these
copies of the Document, then if the Document is less than one half of
the entire aggregate, the Document's Cover Texts may be placed on
covers that bracket the Document within the aggregate, or the
electronic equivalent of covers if the Document is in electronic form.
Otherwise they must appear on printed covers that bracket the whole
aggregate.
@sp 1
@item
TRANSLATION

Translation is considered a kind of modification, so you may
distribute translations of the Document under the terms of section 4.
Replacing Invariant Sections with translations requires special
permission from their copyright holders, but you may include
translations of some or all Invariant Sections in addition to the
original versions of these Invariant Sections.  You may include a
translation of this License, and all the license notices in the
Document, and any Warranty Disclaimers, provided that you also include
the original English version of this License and the original versions
of those notices and disclaimers.  In case of a disagreement between
the translation and the original version of this License or a notice
or disclaimer, the original version will prevail.

If a section in the Document is Entitled ``Acknowledgements'',
``Dedications'', or ``History'', the requirement (section 4) to Preserve
its Title (section 1) will typically require changing the actual
title.
@sp 1
@item
TERMINATION

You may not copy, modify, sublicense, or distribute the Document except
as expressly provided for under this License.  Any other attempt to
copy, modify, sublicense or distribute the Document is void, and will
automatically terminate your rights under this License.  However,
parties who have received copies, or rights, from you under this
License will not have their licenses terminated so long as such
parties remain in full compliance.
@sp 1
@item
FUTURE REVISIONS OF THIS LICENSE

The Free Software Foundation may publish new, revised versions
of the GNU Free Documentation License from time to time.  Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.  See
http://www.gnu.org/copyleft/.

Each version of the License is given a distinguishing version number.
If the Document specifies that a particular numbered version of this
License ``or any later version'' applies to it, you have the option of
following the terms and conditions either of that specified version or
of any later version that has been published (not as a draft) by the
Free Software Foundation.  If the Document does not specify a version
number of this License, you may choose any version ever published (not
as a draft) by the Free Software Foundation.

@end enumerate

@unnumberedsec ADDENDUM: How to use this License for your documents

To use this License in a document you have written, include a copy of
the License in the document and put the following copyright and
license notices just after the title page:

@smallexample
@group
Copyright (C)  @var{year}  @var{your name}.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.2
or any later version published by the Free Software Foundation;
with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
A copy of the license is included in the section entitled ``GNU
Free Documentation License''.
@end group
@end smallexample

If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
replace the ``with...Texts.'' line with this:

@smallexample
@group
with the Invariant Sections being @var{list their titles}, with the
Front-Cover Texts being @var{list}, and with the Back-Cover Texts being
@var{list}.
@end group
@end smallexample

If you have Invariant Sections without Cover Texts, or some other
combination of the three, merge those two alternatives to suit the
situation.

If your document contains nontrivial examples of program code, we
recommend releasing these examples in parallel under your choice of
free software license, such as the GNU General Public License,
to permit their use in free software.


@node Concept Index,  , GNU Free Documentation License, Top
@comment  node-name,  next,  previous,  up
@unnumbered Index

@printindex cp

@bye

@ignore
   arch-tag: cf9cfaff-fc12-4297-ad15-ec2493002b1e
@end ignore
