1 ;; erc.el --- An Emacs Internet Relay Chat client
3 ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4 ;; 2006 Free Software Foundation, Inc.
6 ;; Author: Alexander L. Belikoff (alexander@belikoff.net)
7 ;; Contributors: Sergey Berezin (sergey.berezin@cs.cmu.edu),
8 ;; Mario Lang (mlang@delysid.org),
9 ;; Alex Schroeder (alex@gnu.org)
10 ;; Andreas Fuchs (afs@void.at)
11 ;; Gergely Nagy (algernon@midgard.debian.net)
12 ;; David Edmondson (dme@dme.org)
13 ;; Maintainer: Michael Olson (mwolson@gnu.org)
14 ;; Keywords: IRC, chat, client, Internet
16 ;; This file is part of GNU Emacs.
18 ;; GNU Emacs is free software; you can redistribute it and/or modify
19 ;; it under the terms of the GNU General Public License as published by
20 ;; the Free Software Foundation; either version 2, or (at your option)
23 ;; GNU Emacs is distributed in the hope that it will be useful,
24 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
25 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 ;; GNU General Public License for more details.
28 ;; You should have received a copy of the GNU General Public License
29 ;; along with GNU Emacs; see the file COPYING. If not, write to the
30 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
31 ;; Boston, MA 02110-1301, USA.
35 ;; ERC is a powerful, modular, and extensible IRC client for Emacs.
37 ;; For more information, see the following URLs:
38 ;; * http://sv.gnu.org/projects/erc/
39 ;; * http://www.emacswiki.org/cgi-bin/wiki/ERC
41 ;; As of 2006-06-13, ERC development is now hosted on Savannah
42 ;; (http://sv.gnu.org/projects/erc). I invite everyone who wants to
43 ;; hack on it to contact me <mwolson@gnu.org> in order to get write
44 ;; access to the shared Arch archive.
48 ;; Put erc.el in your load-path, and put (require 'erc) in your .emacs.
52 ;; Use M-x customize-group RET erc RET to get an overview
53 ;; of all the variables you can tweak.
57 ;; To connect to an IRC server, do
61 ;; After you are connected to a server, you can use C-h m or have a look at
69 (defconst erc-version-string "Version 5.2 stable pre-release"
70 "ERC version. This is used by function `erc-version'.")
72 (eval-when-compile (require 'cl))
79 (defvar erc-official-location
80 "http://emacswiki.org/cgi-bin/wiki/ERC (mailing list: erc-discuss@gnu.org)"
81 "Location of the ERC client on the Internet.")
84 "Emacs Internet Relay Chat client."
85 :link '(url-link "http://www.emacswiki.org/cgi-bin/wiki/ERC")
89 (defgroup erc-buffers nil
90 "Creating new ERC buffers"
93 (defgroup erc-display nil
94 "Settings for how various things are displayed"
97 (defgroup erc-mode-line-and-header nil
98 "Displaying information in the mode-line and header"
101 (defgroup erc-ignore nil
102 "Ignoring certain messages"
105 (defgroup erc-query nil
106 "Using separate buffers for private discussions"
109 (defgroup erc-quit-and-part nil
110 "Quitting and parting channels"
113 (defgroup erc-paranoia nil
114 "Know what is sent and received; control the display of sensitive data."
117 (defgroup erc-scripts nil
118 "Running scripts at startup and with /LOAD"
121 (require 'erc-backend)
123 ;; compatibility with older ERC releases
125 (if (fboundp 'defvaralias)
127 (defvaralias 'erc-announced-server-name 'erc-server-announced-name)
128 (erc-make-obsolete-variable 'erc-announced-server-name
129 'erc-server-announced-name
131 (defvaralias 'erc-process 'erc-server-process)
132 (erc-make-obsolete-variable 'erc-process 'erc-server-process "ERC 5.1")
133 (defvaralias 'erc-default-coding-system 'erc-server-coding-system)
134 (erc-make-obsolete-variable 'erc-default-coding-system
135 'erc-server-coding-system
137 (message (concat "ERC: The function `defvaralias' is not bound. See the "
138 "NEWS file for variable name changes since ERC 5.0.4.")))
140 (defalias 'erc-send-command 'erc-server-send)
141 (erc-make-obsolete 'erc-send-command 'erc-server-send "ERC 5.1")
143 ;; tunable connection and authentication parameters
145 (defcustom erc-server nil
146 "IRC server to use if one is not provided.
147 See function `erc-compute-server' for more details on connection
148 parameters and authentication."
150 :type '(choice (const :tag "None" nil)
151 (string :tag "Server")))
153 (defcustom erc-port nil
154 "IRC port to use if not specified.
156 This can be either a string or a number."
158 :type '(choice (const :tag "None" nil)
159 (integer :tag "Port number")
160 (string :tag "Port string")))
162 (defcustom erc-nick nil
163 "Nickname to use if one is not provided.
165 This can be either a string, or a list of strings.
166 In the latter case, if the first nick in the list is already in use,
167 other nicks are tried in the list order.
169 See function `erc-compute-nick' for more details on connection
170 parameters and authentication."
172 :type '(choice (const :tag "None" nil)
173 (string :tag "Nickname")
174 (repeat (string :tag "Nickname"))))
176 (defcustom erc-nick-uniquifier "`"
177 "The string to append to the nick if it is already in use."
181 (defcustom erc-try-new-nick-p t
182 "If the nickname you chose isn't available, and this option is non-nil,
183 ERC should automatically attempt to connect with another nickname.
185 You can manually set another nickname with the /NICK command."
189 (defcustom erc-user-full-name nil
192 This can be either a string or a function to call.
194 See function `erc-compute-full-name' for more details on connection
195 parameters and authentication."
197 :type '(choice (const :tag "No name" nil)
199 (function :tag "Get from function"))
200 :set (lambda (sym val)
202 (set sym (funcall val))
205 (defvar erc-password nil
206 "Password to use when authenticating to an IRC server.
207 It is not strictly necessary to provide this, since ERC will
210 (defcustom erc-user-mode nil
211 "Initial user modes to be set after a connection is established."
213 :type '(choice (const nil) string function))
216 (defcustom erc-prompt-for-password t
217 "Asks before using the default password, or whether to enter a new one."
221 (defcustom erc-warn-about-blank-lines t
222 "Warn the user if they attempt to send a blank line."
226 (defcustom erc-send-whitespace-lines nil
227 "If set to non-nil, send lines consisting of only whitespace."
231 (defcustom erc-hide-prompt nil
232 "If non-nil, do not display the prompt for commands.
234 \(A command is any input starting with a '/').
236 See also the variables `erc-prompt' and `erc-command-indicator'."
242 (defcustom erc-show-my-nick t
243 "If non-nil, display one's own nickname when sending a message.
245 If non-nil, \"<nickname>\" will be shown.
246 If nil, only \"> \" will be shown."
250 (define-widget 'erc-message-type 'set
251 "A set of standard IRC Message types."
252 :args '((const "JOIN")
258 (repeat :inline t :tag "Others" (string :tag "IRC Message Type"))))
260 (defcustom erc-hide-list nil
261 "*List of IRC type messages to hide.
262 A typical value would be '(\"JOIN\" \"PART\" \"QUIT\")."
264 :type 'erc-message-type)
266 (defvar erc-session-password nil
267 "The password used for the current session.")
268 (make-variable-buffer-local 'erc-session-password)
270 (defcustom erc-disconnected-hook nil
271 "Run this hook with arguments (NICK IP REASON) when disconnected.
272 This happens before automatic reconnection. Note, that
273 `erc-server-QUIT-functions' might not be run when we disconnect,
274 simply because we do not necessarily receive the QUIT event."
278 (defcustom erc-complete-functions nil
279 "These functions get called when the user hits TAB in ERC.
280 Each function in turn is called until one returns non-nil to
281 indicate it has handled the input."
285 (defcustom erc-join-hook nil
286 "Hook run when we join a channel. Hook functions are called
287 without arguments, with the current buffer set to the buffer of
290 See also `erc-server-JOIN-functions', `erc-part-hook'."
294 (defcustom erc-quit-hook nil
295 "Hook run when processing a quit command directed at our nick.
297 The hook receives one argument, the current PROCESS.
298 See also `erc-server-QUIT-functions' and `erc-disconnected-hook'."
302 (defcustom erc-part-hook nil
303 "Hook run when processing a PART message directed at our nick.
305 The hook receives one argument, the current BUFFER.
306 See also `erc-server-QUIT-functions', `erc-quit-hook' and
307 `erc-disconnected-hook'."
311 (defcustom erc-kick-hook nil
312 "Hook run when processing a KICK message directed at our nick.
314 The hook receives one argument, the current BUFFER.
315 See also `erc-server-PART-functions' and `erc-part-hook'."
319 (defcustom erc-nick-changed-functions nil
320 "List of functions run when your nick was successfully changed.
322 Each function should accept two arguments, NEW-NICK and OLD-NICK."
326 (defcustom erc-connect-pre-hook '(erc-initialize-log-marker)
327 "Hook called just before `erc' calls `erc-connect'.
328 Functions are run in the buffer-to-be."
333 (defvar erc-channel-users nil
334 "A hash table of members in the current channel, which
335 associates nicknames with cons cells of the form:
336 \(USER . MEMBER-DATA) where USER is a pointer to an
337 erc-server-user struct, and MEMBER-DATA is a pointer to an
338 erc-channel-user struct.")
339 (make-variable-buffer-local 'erc-channel-users)
341 (defvar erc-server-users nil
342 "A hash table of users on the current server, which associates
343 nicknames with erc-server-user struct instances.")
344 (make-variable-buffer-local 'erc-server-users)
346 (defun erc-downcase (string)
347 "Convert STRING to IRC standard conforming downcase."
348 (let ((s (downcase string))
354 (while (string-match "[]\\[~]" s)
355 (aset s (match-beginning 0)
356 (cdr (assq (aref s (match-beginning 0)) c)))))
359 (defstruct (erc-server-user (:type vector) :named)
361 nickname host login full-name info
364 ;; This is an alist of the form (BUFFER . CHANNEL-DATA), where
365 ;; CHANNEL-DATA is either nil or an erc-channel-user struct.
369 (defstruct (erc-channel-user (:type vector) :named)
371 ;; Last message time (in the form of the return value of
374 ;; This is useful for ordered name completion.
375 (last-message-time nil))
377 (defsubst erc-get-channel-user (nick)
378 "Finds the (USER . CHANNEL-DATA) element corresponding to NICK
379 in the current buffer's `erc-channel-users' hash table."
380 (gethash (erc-downcase nick) erc-channel-users))
382 (defsubst erc-get-server-user (nick)
383 "Finds the USER corresponding to NICK in the current server's
384 `erc-server-users' hash table."
385 (with-current-buffer (process-buffer erc-server-process)
386 (gethash (erc-downcase nick) erc-server-users)))
388 (defsubst erc-add-server-user (nick user)
389 "This function is for internal use only.
391 Adds USER with nickname NICK to the `erc-server-users' hash table."
392 (with-current-buffer (process-buffer erc-server-process)
393 (puthash (erc-downcase nick) user erc-server-users)))
395 (defsubst erc-remove-server-user (nick)
396 "This function is for internal use only.
398 Removes the user with nickname NICK from the `erc-server-users'
399 hash table. This user is not removed from the
400 `erc-channel-users' lists of other buffers.
402 See also: `erc-remove-user'."
403 (with-current-buffer (process-buffer erc-server-process)
404 (remhash (erc-downcase nick) erc-server-users)))
406 (defun erc-change-user-nickname (user new-nick)
407 "This function is for internal use only.
409 Changes the nickname of USER to NEW-NICK in the
410 `erc-server-users' hash table. The `erc-channel-users' lists of
411 other buffers are also changed."
412 (let ((nick (erc-server-user-nickname user)))
413 (setf (erc-server-user-nickname user) new-nick)
414 (with-current-buffer (process-buffer erc-server-process)
415 (remhash (erc-downcase nick) erc-server-users)
416 (puthash (erc-downcase new-nick) user erc-server-users))
417 (dolist (buf (erc-server-user-buffers user))
418 (if (buffer-live-p buf)
419 (with-current-buffer buf
420 (let ((cdata (erc-get-channel-user nick)))
421 (remhash (erc-downcase nick) erc-channel-users)
422 (puthash (erc-downcase new-nick) cdata
423 erc-channel-users)))))))
425 (defun erc-remove-channel-user (nick)
426 "This function is for internal use only.
428 Removes the user with nickname NICK from the `erc-channel-users'
429 list for this channel. If this user is not in the
430 `erc-channel-users' list of any other buffers, the user is also
431 removed from the server's `erc-server-users' list.
433 See also: `erc-remove-server-user' and `erc-remove-user'."
434 (let ((channel-data (erc-get-channel-user nick)))
436 (let ((user (car channel-data)))
437 (setf (erc-server-user-buffers user)
438 (delq (current-buffer)
439 (erc-server-user-buffers user)))
440 (remhash (erc-downcase nick) erc-channel-users)
441 (if (null (erc-server-user-buffers user))
442 (erc-remove-server-user nick))))))
444 (defun erc-remove-user (nick)
445 "This function is for internal use only.
447 Removes the user with nickname NICK from the `erc-server-users'
448 list as well as from all `erc-channel-users' lists.
450 See also: `erc-remove-server-user' and
451 `erc-remove-channel-user'."
452 (let ((user (erc-get-server-user nick)))
454 (let ((buffers (erc-server-user-buffers user)))
455 (dolist (buf buffers)
456 (if (buffer-live-p buf)
457 (with-current-buffer buf
458 (remhash (erc-downcase nick) erc-channel-users)
459 (run-hooks 'erc-channel-members-changed-hook)))))
460 (erc-remove-server-user nick))))
462 (defun erc-remove-channel-users ()
463 "This function is for internal use only.
465 Removes all users in the current channel. This is called by
466 `erc-server-PART' and `erc-server-QUIT'."
467 (when (and erc-server-connected
468 (erc-server-process-alive)
469 (hash-table-p erc-channel-users))
470 (maphash (lambda (nick cdata)
471 (erc-remove-channel-user nick))
473 (clrhash erc-channel-users)))
475 (defsubst erc-channel-user-op-p (nick)
476 "Return t if NICK is an operator in the current channel."
478 (hash-table-p erc-channel-users)
479 (let ((cdata (erc-get-channel-user nick)))
480 (and cdata (cdr cdata)
481 (erc-channel-user-op (cdr cdata))))))
483 (defsubst erc-channel-user-voice-p (nick)
484 "Return t if NICK has voice in the current channel."
486 (hash-table-p erc-channel-users)
487 (let ((cdata (erc-get-channel-user nick)))
488 (and cdata (cdr cdata)
489 (erc-channel-user-voice (cdr cdata))))))
491 (defun erc-get-channel-user-list ()
492 "Returns a list of users in the current channel. Each element
493 of the list is of the form (USER . CHANNEL-DATA), where USER is
494 an erc-server-user struct, and CHANNEL-DATA is either `nil' or an
495 erc-channel-user struct.
497 See also: `erc-sort-channel-users-by-activity'"
499 (if (hash-table-p erc-channel-users)
500 (maphash (lambda (nick cdata)
501 (setq users (cons cdata users)))
505 (defun erc-get-server-nickname-list ()
506 "Returns a list of known nicknames on the current server."
507 (if (erc-server-process-alive)
508 (with-current-buffer (erc-server-buffer)
510 (when (hash-table-p erc-server-users)
511 (maphash (lambda (n user)
513 (cons (erc-server-user-nickname user)
518 (defun erc-get-channel-nickname-list ()
519 "Returns a list of known nicknames on the current channel."
521 (when (hash-table-p erc-channel-users)
522 (maphash (lambda (n cdata)
524 (cons (erc-server-user-nickname (car cdata))
529 (defun erc-get-server-nickname-alist ()
530 "Returns an alist of known nicknames on the current server."
531 (if (erc-server-process-alive)
532 (with-current-buffer (erc-server-buffer)
534 (when (hash-table-p erc-server-users)
535 (maphash (lambda (n user)
537 (cons (cons (erc-server-user-nickname user) nil)
542 (defun erc-get-channel-nickname-alist ()
543 "Returns an alist of known nicknames on the current channel."
545 (when (hash-table-p erc-channel-users)
546 (maphash (lambda (n cdata)
548 (cons (cons (erc-server-user-nickname (car cdata)) nil)
553 (defun erc-sort-channel-users-by-activity (list)
554 "Sorts LIST such that users which have spoken most recently are
555 listed first. LIST must be of the form (USER . CHANNEL-DATA).
557 See also: `erc-get-channel-user-list'."
562 (let ((tx (erc-channel-user-last-message-time (cdr x)))
563 (ty (erc-channel-user-last-message-time (cdr y))))
570 (defun erc-sort-channel-users-alphabetically (list)
571 "Sort LIST so that users' nicknames are in alphabetical order.
572 LIST must be of the form (USER . CHANNEL-DATA).
574 See also: `erc-get-channel-user-list'."
579 (let ((nickx (downcase (erc-server-user-nickname (car x))))
580 (nicky (downcase (erc-server-user-nickname (car y)))))
583 (string-lessp nickx nicky)
587 (defvar erc-channel-topic nil
588 "A topic string for the channel. Should only be used in channel-buffers.")
589 (make-variable-buffer-local 'erc-channel-topic)
591 (defvar erc-channel-modes nil
592 "List of strings representing channel modes.
593 E.g. '(\"i\" \"m\" \"s\" \"b Quake!*@*\")
594 \(not sure the ban list will be here, but why not)")
595 (make-variable-buffer-local 'erc-channel-modes)
597 (defvar erc-insert-marker nil
598 "The place where insertion of new text in erc buffers should happen.")
599 (make-variable-buffer-local 'erc-insert-marker)
601 (defvar erc-input-marker nil
602 "The marker where input should be inserted.")
603 (make-variable-buffer-local 'erc-input-marker)
605 (defun erc-string-no-properties (string)
606 "Return a copy of STRING will all text-properties removed."
607 (let ((newstring (copy-sequence string)))
608 (set-text-properties 0 (length newstring) nil newstring)
611 (defcustom erc-prompt "ERC>"
612 "Prompt used by ERC. Trailing whitespace is not required."
614 :type '(choice string function))
617 "Return the input prompt as a string.
619 See also the variable `erc-prompt'."
620 (let ((prompt (if (functionp erc-prompt)
623 (if (> (length prompt) 0)
627 (defcustom erc-command-indicator nil
628 "Indicator used by ERC for showing commands.
630 If non-nil, this will be used in the ERC buffer to indicate
631 commands (i.e., input starting with a '/').
633 If nil, the prompt will be constructed from the variable `erc-prompt'."
635 :type '(choice (const nil) string function))
637 (defun erc-command-indicator ()
638 "Return the command indicator prompt as a string.
640 This only has any meaning if the variable `erc-command-indicator' is non-nil."
641 (and erc-command-indicator
642 (let ((prompt (if (functionp erc-command-indicator)
643 (funcall erc-command-indicator)
644 erc-command-indicator)))
645 (if (> (length prompt) 0)
649 (defcustom erc-notice-prefix "*** "
650 "*Prefix for all notices."
654 (defcustom erc-notice-highlight-type 'all
655 "*Determines how to highlight notices.
656 See `erc-notice-prefix'.
658 The following values are allowed:
660 'prefix - highlight notice prefix only
661 'all - highlight the entire notice
663 Any other value disables notice's highlighting altogether."
665 :type '(choice (const :tag "highlight notice prefix only" prefix)
666 (const :tag "highlight the entire notice" all)
667 (const :tag "don't highlight notices at all" nil)))
669 (defcustom erc-echo-notice-hook nil
670 "*Specifies a list of functions to call to echo a private
671 notice. Each function is called with four arguments, the string
672 to display, the parsed server message, the target buffer (or
673 nil), and the sender. The functions are called in order, until a
674 function evaluates to non-nil. These hooks are called after
675 those specified in `erc-echo-notice-always-hook'.
677 See also: `erc-echo-notice-always-hook',
678 `erc-echo-notice-in-default-buffer',
679 `erc-echo-notice-in-target-buffer',
680 `erc-echo-notice-in-minibuffer',
681 `erc-echo-notice-in-server-buffer',
682 `erc-echo-notice-in-active-non-server-buffer',
683 `erc-echo-notice-in-active-buffer',
684 `erc-echo-notice-in-user-buffers',
685 `erc-echo-notice-in-user-and-target-buffers',
686 `erc-echo-notice-in-first-user-buffer'"
689 :options '(erc-echo-notice-in-default-buffer
690 erc-echo-notice-in-target-buffer
691 erc-echo-notice-in-minibuffer
692 erc-echo-notice-in-server-buffer
693 erc-echo-notice-in-active-non-server-buffer
694 erc-echo-notice-in-active-buffer
695 erc-echo-notice-in-user-buffers
696 erc-echo-notice-in-user-and-target-buffers
697 erc-echo-notice-in-first-user-buffer))
699 (defcustom erc-echo-notice-always-hook
700 '(erc-echo-notice-in-default-buffer)
701 "*Specifies a list of functions to call to echo a private
702 notice. Each function is called with four arguments, the string
703 to display, the parsed server message, the target buffer (or
704 nil), and the sender. The functions are called in order, and all
705 functions are called. These hooks are called before those
706 specified in `erc-echo-notice-hook'.
708 See also: `erc-echo-notice-hook',
709 `erc-echo-notice-in-default-buffer',
710 `erc-echo-notice-in-target-buffer',
711 `erc-echo-notice-in-minibuffer',
712 `erc-echo-notice-in-server-buffer',
713 `erc-echo-notice-in-active-non-server-buffer',
714 `erc-echo-notice-in-active-buffer',
715 `erc-echo-notice-in-user-buffers',
716 `erc-echo-notice-in-user-and-target-buffers',
717 `erc-echo-notice-in-first-user-buffer'"
720 :options '(erc-echo-notice-in-default-buffer
721 erc-echo-notice-in-target-buffer
722 erc-echo-notice-in-minibuffer
723 erc-echo-notice-in-server-buffer
724 erc-echo-notice-in-active-non-server-buffer
725 erc-echo-notice-in-active-buffer
726 erc-echo-notice-in-user-buffers
727 erc-echo-notice-in-user-and-target-buffers
728 erc-echo-notice-in-first-user-buffer))
730 ;; other tunable parameters
732 (defcustom erc-whowas-on-nosuchnick nil
733 "*If non-nil, do a whowas on a nick if no such nick."
737 (defcustom erc-verbose-server-ping nil
738 "*If non-nil, show every time you get a PING or PONG from the server."
742 (defcustom erc-public-away-p nil
743 "*Let others know you are back when you are no longer marked away.
744 This happens in this form:
745 * <nick> is back (gone for <time>)
747 Many consider it impolite to do so automatically."
751 (defcustom erc-away-nickname nil
752 "*The nickname to take when you are marked as being away."
754 :type '(choice (const nil)
757 (defcustom erc-paranoid nil
758 "If non-nil, then all incoming CTCP requests will be shown."
762 (defcustom erc-disable-ctcp-replies nil
763 "Disable replies to CTCP requests that require a reply.
764 If non-nil, then all incoming CTCP requests that normally require
765 an automatic reply (like VERSION or PING) will be ignored. Good to
766 set if some hacker is trying to flood you away."
770 (defcustom erc-anonymous-login t
771 "Be paranoid, don't give away your machine name."
775 (defcustom erc-prompt-for-channel-key nil
776 "Prompt for channel key when using `erc-join-channel' interactively."
780 (defcustom erc-email-userid "user"
781 "Use this as your email user ID."
785 (defcustom erc-ignore-list nil
786 "*List of regexps matching user identifiers to ignore.
788 A user identifier has the form \"nick!login@host\". If an
789 identifier matches, the message from the person will not be
792 :type '(repeat regexp))
793 (make-variable-buffer-local 'erc-ignore-list)
795 (defcustom erc-ignore-reply-list nil
796 "*List of regexps matching user identifiers to ignore completely.
798 This differs from `erc-ignore-list' in that it also ignores any
799 messages directed at the user.
801 A user identifier has the form \"nick!login@host\".
803 If an identifier matches, or a message is addressed to a nick
804 whose identifier matches, the message will not be processed.
806 CAVEAT: ERC doesn't know about the user and host of anyone who
807 was already in the channel when you joined, but never said
808 anything, so it won't be able to match the user and host of those
809 people. You can update the ERC internal info using /WHO *."
811 :type '(repeat regexp))
813 (defvar erc-flood-protect t
814 "*If non-nil, flood protection is enabled.
815 Flooding is sending too much information to the server in too
816 short of an interval, which may cause the server to terminate the
819 See `erc-server-flood-margin' for other flood-related parameters.")
823 (defcustom erc-startup-file-list
824 '("~/.emacs.d/.ercrc.el" "~/.emacs.d/.ercrc"
825 "~/.ercrc.el" "~/.ercrc" ".ercrc.el" ".ercrc")
826 "List of files to try for a startup script.
827 The first existent and readable one will get executed.
829 If the filename ends with `.el' it is presumed to be an Emacs Lisp
830 script and it gets (load)ed. Otherwise is is treated as a bunch of
831 regular IRC commands."
833 :type '(repeat file))
835 (defcustom erc-script-path nil
836 "List of directories to look for a script in /load command.
837 The script is first searched in the current directory, then in each
838 directory in the list."
840 :type '(repeat directory))
842 (defcustom erc-script-echo t
843 "*If non-nil, echo the IRC script commands locally."
847 (defvar erc-last-saved-position nil
848 "A marker containing the position the current buffer was last saved at.")
849 (make-variable-buffer-local 'erc-last-saved-position)
851 (defcustom erc-kill-buffer-on-part nil
852 "Kill the channel buffer on PART.
853 This variable should probably stay nil, as ERC can reuse buffers if
854 you rejoin them later."
855 :group 'erc-quit-and-part
858 (defcustom erc-kill-queries-on-quit nil
859 "Kill all query (also channel) buffers of this server on QUIT.
860 See the variable `erc-kill-buffer-on-part' for details."
861 :group 'erc-quit-and-part
864 (defcustom erc-kill-server-buffer-on-quit nil
865 "Kill the server buffer of the process on QUIT."
866 :group 'erc-quit-and-part
869 (defcustom erc-quit-reason-various-alist nil
870 "Alist of possible arguments to the /quit command.
872 Each element has the form:
875 If REGEXP matches the argument to /quit, then its relevant RESULT
876 will be used. RESULT may be either a string, or a function. If
877 a function, it should return the quit message as a string.
879 If no elements match, then the empty string is used.
882 (setq erc-quit-reason-various-alist
883 '((\"zippy\" erc-quit-reason-zippy)
884 (\"xmms\" dme:now-playing)
885 (\"version\" erc-quit-reason-normal)
886 (\"home\" \"Gone home !\")
887 (\"^$\" \"Default Reason\")))
888 If the user types \"/quit zippy\", then a Zippy the Pinhead quotation
889 will be used as the quit message."
890 :group 'erc-quit-and-part
891 :type '(repeat (list regexp (choice (string) (function)))))
893 (defcustom erc-part-reason-various-alist nil
894 "Alist of possible arguments to the /part command.
896 Each element has the form:
899 If REGEXP matches the argument to /part, then its relevant RESULT
900 will be used. RESULT may be either a string, or a function. If
901 a function, it should return the part message as a string.
903 If no elements match, then the empty string is used.
906 (setq erc-part-reason-various-alist
907 '((\"zippy\" erc-part-reason-zippy)
908 (\"xmms\" dme:now-playing)
909 (\"version\" erc-part-reason-normal)
910 (\"home\" \"Gone home !\")
911 (\"^$\" \"Default Reason\")))
912 If the user types \"/part zippy\", then a Zippy the Pinhead quotation
913 will be used as the part message."
914 :group 'erc-quit-and-part
915 :type '(repeat (list regexp (choice (string) (function)))))
917 (defcustom erc-quit-reason 'erc-quit-reason-normal
918 "*A function which returns the reason for quitting.
920 The function is passed a single argument, the string typed by the
921 user after \"/quit\"."
922 :group 'erc-quit-and-part
923 :type '(choice (const erc-quit-reason-normal)
924 (const erc-quit-reason-zippy)
925 (const erc-quit-reason-various)
928 (defcustom erc-part-reason 'erc-part-reason-normal
929 "A function which returns the reason for parting a channel.
931 The function is passed a single argument, the string typed by the
932 user after \"/PART\"."
933 :group 'erc-quit-and-part
934 :type '(choice (const erc-part-reason-normal)
935 (const erc-part-reason-zippy)
936 (const erc-part-reason-various)
939 (defvar erc-grab-buffer-name "*erc-grab*"
940 "The name of the buffer created by `erc-grab-region'.")
942 ;; variables available for IRC scripts
944 (defvar erc-user-information "ERC User"
945 "USER_INFORMATION IRC variable.")
949 (defgroup erc-hooks nil
950 "Hook variables for fancy customizations of ERC."
953 (defcustom erc-mode-hook nil
954 "Hook run after `erc-mode' setup is finished."
957 :options '(erc-add-scroll-to-bottom))
959 (defcustom erc-timer-hook nil
960 "Put functions which should get called more or less periodically here.
961 The idea is that servers always play ping pong with the client, and so there
962 is no need for any idle-timer games with Emacs."
966 (defcustom erc-insert-pre-hook nil
967 "Hook called first when some text is inserted through `erc-display-line'.
968 It gets called with one argument, STRING.
969 To be able to modify the inserted text, use `erc-insert-modify-hook' instead.
970 Filtering functions can set `erc-insert-this' to nil to avoid
971 display of that particular string at all."
975 (defcustom erc-send-pre-hook nil
976 "Hook called first when some text is sent through `erc-send-current-line'.
977 It gets called with one argument, STRING.
979 To change the text that will be sent, set the variable STR which is
980 used in `erc-send-current-line'.
982 To change the text inserted into the buffer without changing the text
983 that will be sent, use `erc-send-modify-hook' instead.
985 Filtering functions can set `erc-send-this' to nil to avoid sending of
986 that particular string at all and `erc-insert-this' to prevent
987 inserting that particular string into the buffer.
989 Note that it's useless to set `erc-send-this' to nil and
990 `erc-insert-this' to t. ERC is sane enough to not insert the text
995 (defvar erc-insert-this t
996 "Insert the text into the target buffer or not.
997 Functions on `erc-insert-pre-hook' can set this variable to nil
998 if they wish to avoid insertion of a particular string.")
1000 (defvar erc-send-this t
1001 "Send the text to the target or not.
1002 Functions on `erc-send-pre-hook' can set this variable to nil
1003 if they wish to avoid sending of a particular string.")
1005 (defcustom erc-insert-modify-hook ()
1006 "Insertion hook for functions that will change the text's appearance.
1007 This hook is called just after `erc-insert-pre-hook' when the value
1008 of `erc-insert-this' is t.
1009 While this hook is run, narrowing is in effect and `current-buffer' is
1010 the buffer where the text got inserted. One possible value to add here
1015 (defcustom erc-insert-post-hook nil
1016 "This hook is called just after `erc-insert-modify-hook'.
1017 At this point, all modifications from prior hook functions are done."
1020 :options '(erc-truncate-buffer
1022 erc-save-buffer-in-logs))
1024 (defcustom erc-send-modify-hook nil
1025 "Sending hook for functions that will change the text's appearance.
1026 This hook is called just after `erc-send-pre-hook' when the values
1027 of `erc-send-this' and `erc-insert-this' are both t.
1028 While this hook is run, narrowing is in effect and `current-buffer' is
1029 the buffer where the text got inserted.
1031 Note that no function in this hook can change the appearance of the
1032 text that is sent. Only changing the sent text's appearance on the
1033 sending user's screen is possible. One possible value to add here
1038 (defcustom erc-send-post-hook nil
1039 "This hook is called just after `erc-send-modify-hook'.
1040 At this point, all modifications from prior hook functions are done.
1041 NOTE: The functions on this hook are called _before_ sending a command
1044 This function is called with narrowing, ala `erc-send-modify-hook'."
1047 :options '(erc-make-read-only))
1049 (defcustom erc-send-completed-hook
1050 (when (featurep 'emacspeak)
1053 (emacspeak-auditory-icon 'select-object)))))
1054 "Hook called after a message has been parsed by ERC.
1056 The single argument to the functions is the unmodified string
1057 which the local user typed."
1060 ;; mode-specific tables
1062 (defvar erc-mode-syntax-table
1063 (let ((syntax-table (make-syntax-table)))
1064 (modify-syntax-entry ?\" ". " syntax-table)
1065 (modify-syntax-entry ?\\ ". " syntax-table)
1066 (modify-syntax-entry ?' "w " syntax-table)
1067 ;; Make dabbrev-expand useful for nick names
1068 (modify-syntax-entry ?< "." syntax-table)
1069 (modify-syntax-entry ?> "." syntax-table)
1071 "Syntax table used while in ERC mode.")
1073 (defvar erc-mode-abbrev-table nil
1074 "Abbrev table used while in ERC mode.")
1075 (define-abbrev-table 'erc-mode-abbrev-table ())
1077 (defvar erc-mode-map
1078 (let ((map (make-sparse-keymap)))
1079 (define-key map "\C-m" 'erc-send-current-line)
1080 (define-key map "\C-a" 'erc-bol)
1081 (define-key map [home] 'erc-bol)
1082 (define-key map "\C-c\C-a" 'erc-bol)
1083 (define-key map "\C-c\C-b" 'erc-iswitchb)
1084 (define-key map "\C-c\C-c" 'erc-toggle-interpret-controls)
1085 (define-key map "\C-c\C-d" 'erc-input-action)
1086 (define-key map "\C-c\C-e" 'erc-toggle-ctcp-autoresponse)
1087 (define-key map "\C-c\C-f" 'erc-toggle-flood-control)
1088 (define-key map "\C-c\C-i" 'erc-invite-only-mode)
1089 (define-key map "\C-c\C-j" 'erc-join-channel)
1090 (define-key map "\C-c\C-n" 'erc-channel-names)
1091 (define-key map "\C-c\C-o" 'erc-get-channel-mode-from-keypress)
1092 (define-key map "\C-c\C-p" 'erc-part-from-channel)
1093 (define-key map "\C-c\C-q" 'erc-quit-server)
1094 (define-key map "\C-c\C-r" 'erc-remove-text-properties-region)
1095 (define-key map "\C-c\C-t" 'erc-set-topic)
1096 (define-key map "\C-c\C-u" 'erc-kill-input)
1097 (define-key map "\M-\t" 'ispell-complete-word)
1098 (define-key map "\t" 'erc-complete-word)
1100 ;; Suppress `font-lock-fontify-block' key binding since it
1101 ;; destroys face properties.
1102 (if (fboundp 'command-remapping)
1103 (define-key map [remap font-lock-fontify-block] 'undefined)
1104 (substitute-key-definition
1105 'font-lock-fontify-block 'undefined map global-map))
1112 ; Honestly, I have a horrible sense of color and the "defaults" below
1113 ; are supposed to be really bad. But colors ARE required in IRC to
1114 ; convey different parts of conversation. If you think you know better
1115 ; defaults - send them to me.
1117 ;; Now colors are a bit nicer, at least to my eyes.
1118 ;; You may still want to change them to better fit your background.-- S.B.
1120 (defgroup erc-faces nil
1124 (defface erc-default-face '((t))
1128 (defface erc-direct-msg-face '((t (:foreground "IndianRed")))
1129 "ERC face used for messages you receive in the main erc buffer."
1132 (defface erc-header-line
1133 '((t (:foreground "grey20" :background "grey90")))
1134 "ERC face used for the header line.
1136 This will only be used if `erc-header-line-face-method' is non-nil."
1139 (defface erc-input-face '((t (:foreground "brown")))
1140 "ERC face used for your input."
1143 (defface erc-prompt-face
1144 '((t (:bold t :foreground "Black" :background "lightBlue2")))
1145 "ERC face for the prompt."
1148 (defface erc-command-indicator-face
1150 "ERC face for the command indicator.
1151 See the variable `erc-command-indicator'."
1154 (defface erc-notice-face '((t (:bold t :foreground "SlateBlue")))
1155 "ERC face for notices."
1158 (defface erc-action-face '((t (:bold t)))
1159 "ERC face for actions generated by /ME."
1162 (defface erc-error-face '((t (:foreground "red")))
1163 "ERC face for errors."
1166 ;; same default color as `erc-input-face'
1167 (defface erc-my-nick-face '((t (:bold t :foreground "brown")))
1168 "ERC face for your current nickname in messages sent by you.
1169 See also `erc-show-my-nick'."
1172 (defface erc-nick-default-face '((t (:bold t)))
1173 "ERC nickname default face."
1176 (defface erc-nick-msg-face '((t (:bold t :foreground "IndianRed")))
1177 "ERC nickname face for private messages."
1180 ;; Debugging support
1182 (defvar erc-log-p nil
1183 "When set to t, generate debug messages in a separate debug buffer.")
1185 (defvar erc-debug-log-file (expand-file-name "ERC.debug")
1186 "Debug log file name.")
1188 (defvar erc-dbuf nil)
1189 (make-variable-buffer-local 'erc-dbuf)
1191 (defmacro define-erc-module (name alias doc enable-body disable-body
1193 "Define a new minor mode using ERC conventions.
1194 Symbol NAME is the name of the module.
1195 Symbol ALIAS is the alias to use, or nil.
1196 DOC is the documentation string to use for the minor mode.
1197 ENABLE-BODY is a list of expressions used to enable the mode.
1198 DISABLE-BODY is a list of expressions used to disable the mode.
1199 If LOCAL-P is non-nil, the mode will be created as a buffer-local
1200 mode, rather than a global one.
1202 This will define a minor mode called erc-NAME-mode, possibly
1203 an alias erc-ALIAS-mode, as well as the helper functions
1204 erc-NAME-enable, and erc-NAME-disable.
1208 ;;;###autoload (autoload 'erc-replace-mode \"erc-replace\")
1209 (define-erc-module replace nil
1210 \"This mode replaces incoming text according to `erc-replace-alist'.\"
1211 ((add-hook 'erc-insert-modify-hook
1212 'erc-replace-insert))
1213 ((remove-hook 'erc-insert-modify-hook
1214 'erc-replace-insert)))"
1215 (let* ((sn (symbol-name name))
1216 (mode (intern (format "erc-%s-mode" (downcase sn))))
1217 (group (intern (format "erc-%s" (downcase sn))))
1218 (enable (intern (format "erc-%s-enable" (downcase sn))))
1219 (disable (intern (format "erc-%s-disable" (downcase sn)))))
1221 (erc-define-minor-mode
1223 ,(format "Toggle ERC %S mode.
1224 With arg, turn ERC %S mode on if and only if arg is positive.
1227 :global ,(not local-p) :group (quote ,group)
1232 ,(format "Enable ERC %S mode."
1235 (add-to-list 'erc-modules (quote ,name))
1239 ,(format "Disable ERC %S mode."
1242 (setq erc-modules (delq (quote ,name) erc-modules))
1245 ,(when (and alias (not (eq name alias)))
1249 (format "erc-%s-mode"
1250 (downcase (symbol-name alias)))))
1253 ;; For find-function and find-variable.
1254 (put ',mode 'definition-name ',name)
1255 (put ',enable 'definition-name ',name)
1256 (put ',disable 'definition-name ',name))))
1258 (put 'define-erc-module 'doc-string-elt 3)
1260 (defun erc-once-with-server-event (event &rest forms)
1261 "Execute FORMS the next time EVENT occurs in the `current-buffer'.
1263 You should make sure that `current-buffer' is a server buffer.
1265 This function temporarily adds a function to EVENT's hook to
1266 execute FORMS. After FORMS are run, the function is removed from
1267 EVENT's hook. The last expression of FORMS should be either nil
1268 or t, where nil indicates that the other functions on EVENT's hook
1269 should be run too, and t indicates that other functions should
1272 Please be sure to use this function in server-buffers. In
1273 channel-buffers it may not work at all, as it uses the LOCAL
1274 argument of `add-hook' and `remove-hook' to ensure multiserver
1276 (unless (erc-server-buffer-p)
1278 "You should only run `erc-once-with-server-event' in a server buffer"))
1279 (let ((fun (erc-gensym))
1280 (hook (erc-get-hook event)))
1281 (put fun 'erc-original-buffer (current-buffer))
1282 (fset fun `(lambda (proc parsed)
1283 (with-current-buffer (get ',fun 'erc-original-buffer)
1284 (remove-hook ',hook ',fun t))
1287 (add-hook hook fun nil t)
1290 (defun erc-once-with-server-event-global (event &rest forms)
1291 "Execute FORMS the next time EVENT occurs in any server buffer.
1293 This function temporarily prepends a function to EVENT's hook to
1294 execute FORMS. After FORMS are run, the function is removed from
1295 EVENT's hook. The last expression of FORMS should be either nil
1296 or t, where nil indicates that the other functions on EVENT's hook
1297 should be run too, and t indicates that other functions should
1300 When FORMS execute, the current buffer is the server buffer associated with the
1301 connection over which the data was received that triggered EVENT."
1302 (let ((fun (erc-gensym))
1303 (hook (erc-get-hook event)))
1304 (fset fun `(lambda (proc parsed)
1305 (remove-hook ',hook ',fun)
1308 (add-hook hook fun nil nil)
1311 (defmacro erc-log (string)
1312 "Logs STRING if logging is on (see `erc-log-p')."
1314 (erc-log-aux ,string)))
1316 (defun erc-server-buffer ()
1317 "Return the server buffer for the current buffer's process.
1318 The buffer-local variable `erc-server-process' is used to find
1319 the process buffer."
1320 (and (erc-server-buffer-live-p)
1321 (process-buffer erc-server-process)))
1323 (defun erc-server-buffer-live-p ()
1324 "Return t if the server buffer has not been killed."
1325 (and (processp erc-server-process)
1326 (buffer-live-p (process-buffer erc-server-process))))
1328 (defun erc-server-buffer-p (&optional buffer)
1329 "Return non-nil if argument BUFFER is an ERC server buffer.
1331 If BUFFER is nil, the current buffer is used."
1332 (with-current-buffer (or buffer (current-buffer))
1333 (and (eq major-mode 'erc-mode)
1334 (null (erc-default-target)))))
1336 (defun erc-query-buffer-p (&optional buffer)
1337 "Return non-nil if BUFFER is an ERC query buffer.
1338 If BUFFER is nil, the current buffer is used."
1339 (with-current-buffer (or buffer (current-buffer))
1340 (let ((target (erc-default-target)))
1341 (and (eq major-mode 'erc-mode)
1343 (not (memq (aref target 0) '(?# ?& ?+ ?!)))))))
1345 (defun erc-ison-p (nick)
1346 "Return non-nil if NICK is online."
1347 (interactive "sNick: ")
1348 (with-current-buffer (erc-server-buffer)
1349 (let ((erc-online-p 'unknown))
1350 (erc-once-with-server-event
1352 `(let ((ison (split-string (aref parsed 3))))
1353 (setq erc-online-p (car (erc-member-ignore-case ,nick ison)))
1355 (erc-server-send (format "ISON %s" nick))
1356 (while (eq erc-online-p 'unknown) (accept-process-output))
1358 (message "%s is %sonline"
1359 (or erc-online-p nick)
1360 (if erc-online-p "" "not "))
1363 (defun erc-log-aux (string)
1364 "Do the debug logging of STRING."
1365 (let ((cb (current-buffer))
1368 (session-buffer (erc-server-buffer)))
1371 (set-buffer session-buffer)
1372 (if (not (and erc-dbuf (bufferp erc-dbuf) (buffer-live-p erc-dbuf)))
1374 (setq erc-dbuf (get-buffer-create
1375 (concat "*ERC-DEBUG: "
1376 erc-session-server "*")))))
1377 (set-buffer erc-dbuf)
1378 (setq point (point))
1379 (setq was-eob (eobp))
1380 (goto-char (point-max))
1381 (insert (concat "** " string "\n"))
1382 (if was-eob (goto-char (point-max))
1385 (message "ERC: ** %s" string))))
1387 ;; Last active buffer, to print server messages in the right place
1389 (defvar erc-active-buffer nil
1390 "The current active buffer, the one where the user typed the last command.
1391 Defaults to the server buffer, and should only be set in the
1393 (make-variable-buffer-local 'erc-active-buffer)
1395 (defun erc-active-buffer ()
1396 "Return the value of `erc-active-buffer' for the current server.
1397 Defaults to the server buffer."
1398 (with-current-buffer (erc-server-buffer)
1399 (if (buffer-live-p erc-active-buffer)
1401 (setq erc-active-buffer (current-buffer)))))
1403 (defun erc-set-active-buffer (buffer)
1404 "Set the value of `erc-active-buffer' to BUFFER."
1405 (cond ((erc-server-buffer)
1406 (with-current-buffer (erc-server-buffer)
1407 (setq erc-active-buffer buffer)))
1408 (t (setq erc-active-buffer buffer))))
1410 ;; Mode activation routines
1413 "Major mode for Emacs IRC.
1418 Turning on `erc-mode' runs the hook `erc-mode-hook'."
1419 (kill-all-local-variables)
1420 (use-local-map erc-mode-map)
1421 (setq mode-name "ERC"
1422 major-mode 'erc-mode
1423 local-abbrev-table erc-mode-abbrev-table)
1424 (set-syntax-table erc-mode-syntax-table)
1425 (when (boundp 'next-line-add-newlines)
1426 (set (make-local-variable 'next-line-add-newlines) nil))
1427 (setq line-move-ignore-invisible t)
1428 (set (make-local-variable 'paragraph-separate)
1429 (concat "\C-l\\|\\(^" (regexp-quote (erc-prompt)) "\\)"))
1430 (set (make-local-variable 'paragraph-start)
1431 (concat "\\(" (regexp-quote (erc-prompt)) "\\)"))
1432 ;; Run the mode hooks
1433 (run-hooks 'erc-mode-hook))
1437 (defconst erc-default-server "irc.freenode.net"
1438 "IRC server to use if it cannot be detected otherwise.")
1440 (defconst erc-default-port "6667"
1441 "IRC port to use if it cannot be detected otherwise.")
1443 (defcustom erc-join-buffer 'buffer
1444 "Determines how to display the newly created IRC buffer.
1445 'window - in another window,
1446 'window-noselect - in another window, but don't select that one,
1447 'frame - in another frame,
1448 'bury - bury it in a new buffer,
1449 any other value - in place of the current buffer."
1451 :type '(choice (const window)
1452 (const window-noselect)
1457 (defcustom erc-frame-alist nil
1458 "*Alist of frame parameters for creating erc frames.
1459 A value of nil means to use `default-frame-alist'."
1461 :type '(repeat (cons :format "%v"
1462 (symbol :tag "Parameter")
1463 (sexp :tag "Value"))))
1465 (defcustom erc-frame-dedicated-flag nil
1466 "*Non-nil means the erc frames are dedicated to that buffer.
1467 This only has effect when `erc-join-buffer' is set to `frame'."
1471 (defun erc-channel-p (channel)
1472 "Return non-nil if CHANNEL seems to be an IRC channel name."
1473 (cond ((stringp channel)
1474 (memq (aref channel 0) '(?# ?& ?+ ?!)))
1475 ((and (bufferp channel) (buffer-live-p channel))
1476 (with-current-buffer channel
1477 (erc-channel-p (erc-default-target))))
1480 (defcustom erc-reuse-buffers t
1481 "*If nil, create new buffers on joining a channel/query.
1482 If non-nil, a new buffer will only be created when you join
1483 channels with same names on different servers, or have query buffers
1484 open with nicks of the same name on different servers. Otherwise,
1485 the existing buffers will be reused."
1489 (defun erc-normalize-port (port)
1490 "Normalize the port specification PORT to integer form.
1491 PORT may be an integer, a string or a symbol. If it is a string or a
1492 symbol, it may have these values:
1496 * ircd-dalnet -> 7000"
1499 (erc-normalize-port (symbol-name port)))
1501 (let ((port-nr (string-to-number port)))
1505 ((string-equal port "irc")
1507 ((string-equal port "ircs")
1509 ((string-equal port "ircd")
1511 ((string-equal port "ircd-dalnet")
1520 (defun erc-port-equal (a b)
1521 "Check whether ports A and B are equal."
1522 (= (erc-normalize-port a) (erc-normalize-port b)))
1524 (defun erc-generate-new-buffer-name (server port target &optional proc)
1525 "Create a new buffer name based on the arguments."
1526 (when (numberp port) (setq port (number-to-string port)))
1527 (let* ((buf-name (or target
1528 (or (let ((name (concat server ":" port)))
1529 (when (> (length name) 1)
1531 ; This fallback should in fact never happen
1532 "*erc-server-buffer*"))))
1533 ;; Reuse existing buffers, but not if the buffer is a connected server
1534 ;; buffer and not if its associated with a different server than the
1535 ;; current ERC buffer.
1536 (if (and erc-reuse-buffers
1537 (get-buffer buf-name)
1539 (with-current-buffer (get-buffer buf-name)
1540 (and (erc-server-buffer-p)
1541 (not (erc-server-process-alive)))))
1542 (with-current-buffer (get-buffer buf-name)
1543 (and (string= erc-session-server server)
1544 (erc-port-equal erc-session-port port))))
1546 (generate-new-buffer-name buf-name))))
1548 (defun erc-get-buffer-create (server port target &optional proc)
1549 "Create a new buffer based on the arguments."
1550 (get-buffer-create (erc-generate-new-buffer-name server port target proc)))
1553 (defun erc-member-ignore-case (string list)
1554 "Return non-nil if STRING is a member of LIST.
1556 All strings are compared according to IRC protocol case rules, see
1558 (setq string (erc-downcase string))
1561 (if (string= string (erc-downcase (car list)))
1562 (throw 'result list)
1563 (setq list (cdr list))))))
1565 (defmacro erc-with-buffer (spec &rest body)
1566 "Execute BODY in the buffer associated with SPEC.
1568 SPEC should have the form
1572 If TARGET is a buffer, use it. Otherwise, use the buffer
1573 matching TARGET in the process specified by PROCESS.
1575 If PROCESS is nil, use the current `erc-server-process'.
1576 See `erc-get-buffer' for details.
1578 See also `with-current-buffer'.
1580 \(fn (TARGET [PROCESS]) BODY...)"
1581 (let ((buf (erc-gensym))
1583 (target (erc-gensym))
1584 (process (erc-gensym)))
1585 `(let* ((,target ,(car spec))
1586 (,process ,(cadr spec))
1587 (,buf (if (bufferp ,target)
1589 (let ((,proc (or ,process
1590 (and (processp erc-server-process)
1591 erc-server-process))))
1592 (if (and ,target ,proc)
1593 (erc-get-buffer ,target ,proc))))))
1595 (with-current-buffer ,buf
1597 (put 'erc-with-buffer 'lisp-indent-function 1)
1598 (put 'erc-with-buffer 'edebug-form-spec '((form &optional form) body))
1600 (defun erc-get-buffer (target &optional proc)
1601 "Return the buffer matching TARGET in the process PROC.
1602 If PROC is not supplied, all processes are searched."
1603 (let ((downcased-target (erc-downcase target)))
1607 (let ((current (erc-default-target)))
1608 (and (stringp current)
1609 (string-equal downcased-target (erc-downcase current))
1610 (throw 'buffer (current-buffer)))))
1613 (defun erc-buffer-filter (predicate &optional proc)
1614 "Return a list of `erc-mode' buffers matching certain criteria.
1615 PREDICATE is a function executed with each buffer, if it returns t, that buffer
1616 is considered a valid match.
1618 PROC is either an `erc-server-process', identifying a certain
1619 server connection, or nil which means all open connections."
1623 (mapcar (lambda (buf)
1624 (when (buffer-live-p buf)
1625 (with-current-buffer buf
1626 (and (eq major-mode 'erc-mode)
1628 (eq proc erc-server-process))
1633 (defun erc-buffer-list (&optional predicate proc)
1634 "Return a list of ERC buffers.
1635 PREDICATE is a function which executes with every buffer satisfying
1636 the predicate. If PREDICATE is passed as nil, return a list of all ERC
1637 buffers. If PROC is given, the buffers local variable `erc-server-process'
1638 needs to match PROC."
1640 (setq predicate (lambda () t)))
1641 (erc-buffer-filter predicate proc))
1643 (defmacro erc-with-all-buffers-of-server (process pred &rest forms)
1644 "Execute FORMS in all buffers which have same process as this server.
1645 FORMS will be evaluated in all buffers having the process PROCESS and
1646 where PRED matches or in all buffers of the server process if PRED is
1648 ;; Make the evaluation have the correct order
1649 (let ((pre (erc-gensym))
1651 `(let ((,pro ,process)
1653 (mapcar (lambda (buffer)
1654 (with-current-buffer buffer
1656 (erc-buffer-list ,pre
1658 (put 'erc-with-all-buffers-of-server 'lisp-indent-function 1)
1659 (put 'erc-with-all-buffers-of-server 'edebug-form-spec '(form form body))
1661 (defun erc-iswitchb (&optional arg)
1662 "Use `iswitchb-read-buffer' to prompt for a ERC buffer to switch to.
1663 When invoked with prefix argument, use all erc buffers. Without prefix
1664 ARG, allow only buffers related to same session server.
1665 If `erc-track-mode' is in enabled, put the last element of
1666 `erc-modified-channels-alist' in front of the buffer list.
1668 Due to some yet unresolved reason, global function `iswitchb-mode'
1669 needs to be active for this function to work."
1672 (require 'iswitchb))
1673 (let ((enabled iswitchb-mode))
1674 (or enabled (iswitchb-mode 1))
1675 (let ((iswitchb-make-buflist-hook
1677 (setq iswitchb-temp-buflist
1678 (mapcar 'buffer-name
1681 (when arg erc-server-process)))))))
1683 (iswitchb-read-buffer
1685 (if (boundp 'erc-modified-channels-alist)
1686 (buffer-name (caar (last erc-modified-channels-alist)))
1689 (or enabled (iswitchb-mode -1))))
1691 (defun erc-channel-list (proc)
1692 "Return a list of channel buffers.
1693 PROC is the process for the server connection. If PROC is nil, return
1694 all channel buffers on all servers."
1697 (and (erc-default-target)
1698 (erc-channel-p (erc-default-target))))
1701 (defun erc-buffer-list-with-nick (nick proc)
1702 "Return buffers containing NICK in the `erc-channel-users' list."
1703 (with-current-buffer (process-buffer proc)
1704 (let ((user (gethash (erc-downcase nick) erc-server-users)))
1706 (erc-server-user-buffers user)
1709 ;; Some local variables
1711 (defvar erc-default-recipients nil
1712 "List of default recipients of the current buffer.")
1713 (make-variable-buffer-local 'erc-default-recipients)
1715 (defvar erc-session-user-full-name nil
1716 "Full name of the user on the current server.")
1717 (make-variable-buffer-local 'erc-session-user-full-name)
1719 (defvar erc-channel-user-limit nil
1720 "Limit of users per channel.")
1721 (make-variable-buffer-local 'erc-channel-user-limit)
1723 (defvar erc-channel-key nil
1724 "Key needed to join channel.")
1725 (make-variable-buffer-local 'erc-channel-key)
1727 (defvar erc-invitation nil
1728 "Last invitation channel.")
1729 (make-variable-buffer-local 'erc-invitation)
1731 (defvar erc-away nil
1732 "Non-nil indicates that we are away.")
1733 (make-variable-buffer-local 'erc-away)
1735 (defvar erc-channel-list nil
1736 "Server channel list.")
1737 (make-variable-buffer-local 'erc-channel-list)
1739 (defvar erc-bad-nick nil
1740 "Non-nil indicates that we got a `nick in use' error while connecting.")
1741 (make-variable-buffer-local 'erc-bad-nick)
1743 (defvar erc-logged-in nil
1744 "Non-nil indicates that we are logged in.")
1745 (make-variable-buffer-local 'erc-logged-in)
1747 (defvar erc-default-nicks nil
1748 "The local copy of `erc-nick' - the list of nicks to choose from.")
1749 (make-variable-buffer-local 'erc-default-nicks)
1751 (defvar erc-nick-change-attempt-count 0
1752 "Used to keep track of how many times an attempt at changing nick is made.")
1753 (make-variable-buffer-local 'erc-nick-change-attempt-count)
1755 (defun erc-migrate-modules (mods)
1756 "Migrate old names of ERC modules to new ones."
1757 ;; modify `transforms' to specify what needs to be changed
1758 ;; each item is in the format '(old . new)
1759 (let ((transforms '((pcomplete . completion))))
1761 (mapcar (lambda (m) (or (cdr (assoc m transforms)) m))
1764 (defcustom erc-modules '(netsplit fill button match track completion readonly
1765 ring autojoin noncommands irccontrols
1767 "A list of modules which ERC should enable.
1768 If you set the value of this without using `customize' remember to call
1769 \(erc-update-modules) after you change it. When using `customize', modules
1770 removed from the list will be disabled."
1772 ;; replace outdated names with their newer equivalents
1773 (erc-migrate-modules (symbol-value sym)))
1774 :set (lambda (sym val)
1775 ;; disable modules which have just been removed
1776 (when (and (boundp 'erc-modules) erc-modules val)
1777 (dolist (module erc-modules)
1778 (unless (member module val)
1779 (let ((f (intern-soft (format "erc-%s-mode" module))))
1780 (when (and (fboundp f) (boundp f) (symbol-value f))
1781 (message "Disabling `erc-%s'" module)
1784 ;; this test is for the case where erc hasn't been loaded yet
1785 (when (fboundp 'erc-update-modules)
1786 (erc-update-modules)))
1790 (const :tag "Set away status automatically" autoaway)
1791 (const :tag "Join channels automatically" autojoin)
1792 (const :tag "Buttonize URLs, nicknames, and other text" button)
1793 (const :tag "Wrap long lines" fill)
1794 (const :tag "Launch an identd server on port 8113" identd)
1795 (const :tag "Highlight or remove IRC control characters"
1797 (const :tag "Save buffers in logs" log)
1798 (const :tag "Highlight pals, fools, and other keywords" match)
1799 (const :tag "Detect netsplits" netsplit)
1800 (const :tag "Don't display non-IRC commands after evaluation"
1803 "Notify when the online status of certain users changes"
1805 (const :tag "Complete nicknames and commands (programmable)"
1807 (const :tag "Complete nicknames and commands (old)" hecomplete)
1808 (const :tag "Process CTCP PAGE requests from IRC" page)
1809 (const :tag "Make displayed lines read-only" readonly)
1810 (const :tag "Replace text in messages" replace)
1811 (const :tag "Enable an input history" ring)
1812 (const :tag "Scroll to the bottom of the buffer" scrolltobottom)
1813 (const :tag "Identify to Nickserv (IRC Services) automatically"
1815 (const :tag "Convert smileys to pretty icons" smiley)
1816 (const :tag "Play sounds when you receive CTCP SOUND requests"
1818 (const :tag "Add timestamps to messages" stamp)
1819 (const :tag "Check spelling" spelling)
1820 (const :tag "Track channel activity in the mode-line" track)
1821 (const :tag "Truncate buffers to a certain size" truncate)
1822 (const :tag "Translate morse code in messages" unmorse)
1823 (repeat :tag "Others" :inline t symbol))
1826 (defun erc-update-modules ()
1827 "Run this to enable erc-foo-mode for all modules in `erc-modules'."
1829 (dolist (mod erc-modules)
1830 (setq req (concat "erc-" (symbol-name mod)))
1832 ;; yuck. perhaps we should bring the filenames into sync?
1833 ((string= req "erc-completion")
1834 (setq req "erc-pcomplete"))
1835 ((string= req "erc-pcomplete")
1836 (setq mod 'completion))
1837 ((string= req "erc-autojoin")
1838 (setq req "erc-join")))
1840 (require (intern req))
1842 (let ((sym (intern-soft (concat "erc-" (symbol-name mod) "-mode"))))
1845 (error "`%s' is not a known ERC module" mod))))))
1847 (defun erc-setup-buffer (buffer)
1848 "Consults `erc-join-buffer' to find out how to display `BUFFER'."
1849 (cond ((eq erc-join-buffer 'window)
1850 (if (active-minibuffer-window)
1851 (display-buffer buffer)
1852 (switch-to-buffer-other-window buffer)))
1853 ((eq erc-join-buffer 'window-noselect)
1854 (display-buffer buffer))
1855 ((eq erc-join-buffer 'bury)
1857 ((eq erc-join-buffer 'frame)
1858 (funcall '(lambda (frame)
1860 (select-frame frame))
1861 (make-frame (or erc-frame-alist
1862 default-frame-alist)))
1863 (switch-to-buffer buffer)
1864 (when erc-frame-dedicated-flag
1865 (set-window-dedicated-p (selected-window) t)))
1867 (if (active-minibuffer-window)
1868 (display-buffer buffer)
1869 (switch-to-buffer buffer)))))
1871 (defun erc-open (&optional server port nick full-name
1872 connect passwd tgt-list channel process)
1873 "ERC is a powerful, modular, and extensible IRC client.
1875 Connect to SERVER on PORT as NICK with FULL-NAME.
1877 If CONNECT is non-nil, connect to the server. Otherwise assume
1878 already connected and just create a separate buffer for the new
1881 Use PASSWD as user password on the server. If TGT-LIST is
1882 non-nil, use it to initialise `erc-default-recipients'.
1884 Returns the buffer for the given server or channel."
1885 (let ((server-announced-name (when (and (boundp 'erc-session-server)
1886 (string= server erc-session-server))
1887 erc-server-announced-name))
1888 (connected-p (unless connect erc-server-connected))
1889 (buffer (erc-get-buffer-create server port channel))
1890 (old-buffer (current-buffer))
1893 (erc-update-modules)
1896 (setq erc-server-announced-name server-announced-name)
1897 (setq erc-server-connected connected-p)
1898 ;; connection parameters
1899 (setq erc-server-process process)
1900 (setq erc-insert-marker (make-marker))
1901 (setq erc-input-marker (make-marker))
1902 ;; go to the end of the buffer and open a new line
1903 ;; (the buffer may have existed)
1904 (goto-char (point-max))
1906 (when (get-text-property (point) 'erc-prompt)
1907 (setq continued-session t)
1908 (set-marker erc-input-marker
1909 (or (next-single-property-change (point) 'erc-prompt)
1911 (unless continued-session
1912 (goto-char (point-max))
1914 (set-marker erc-insert-marker (point))
1915 ;; stack of default recipients
1916 (setq erc-default-recipients tgt-list)
1917 (setq erc-server-current-nick nil)
1918 ;; Initialize erc-server-users and erc-channel-users
1920 (progn ;; server buffer
1921 (setq erc-server-users
1922 (make-hash-table :test 'equal))
1923 (setq erc-channel-users nil))
1924 (progn ;; target buffer
1925 (setq erc-server-users nil)
1926 (setq erc-channel-users
1927 (make-hash-table :test 'equal))))
1928 ;; clear last incomplete line read
1929 (setq erc-server-filter-data nil)
1930 (setq erc-channel-topic "")
1931 ;; limit on the number of users on the channel (mode +l)
1932 (setq erc-channel-user-limit nil)
1933 (setq erc-channel-key nil)
1934 ;; last active buffer, defaults to this one
1935 (erc-set-active-buffer buffer)
1936 ;; last invitation channel
1937 (setq erc-invitation nil)
1939 ;; Should only be used in session-buffers
1940 (setq erc-away (let ((serverbuf (erc-server-buffer)))
1941 (and serverbuf (with-current-buffer serverbuf erc-away))))
1942 ;; Server channel list
1943 (setq erc-channel-list ())
1944 ;; login-time 'nick in use' error
1945 (setq erc-bad-nick nil)
1946 ;; whether we have logged in
1947 (setq erc-logged-in nil)
1948 ;; The local copy of `erc-nick' - the list of nicks to choose
1949 (setq erc-default-nicks (if (consp erc-nick) erc-nick (list erc-nick)))
1951 (setq erc-session-password passwd)
1952 ;; debug output buffer
1955 (get-buffer-create (concat "*ERC-DEBUG: " server "*"))))
1956 (erc-determine-parameters server port nick full-name)
1958 ;; Saving log file on exit
1959 (run-hooks 'erc-connect-pre-hook)
1962 (erc-server-connect erc-session-server erc-session-port))
1963 (erc-update-mode-line)
1964 (set-marker erc-insert-marker (point))
1965 (unless continued-session
1966 (goto-char (point-max))
1968 (set-marker (process-mark erc-server-process) (point))
1969 (if continued-session
1970 (goto-char old-point)
1971 (set-marker erc-insert-marker (point))
1972 (erc-display-prompt)
1973 (goto-char (point-max)))
1975 ;; Now display the buffer in a window as per user wishes.
1976 (unless (eq buffer old-buffer)
1978 ;; we can't log to debug buffer, it may not exist yet
1979 (message "erc: old buffer %s, switching to %s"
1981 (erc-setup-buffer buffer))
1985 (defun erc-initialize-log-marker ()
1986 "Initialize the `erc-last-saved-position' marker to a sensible position."
1987 (setq erc-last-saved-position (make-marker))
1988 (move-marker erc-last-saved-position
1989 (1- (marker-position erc-insert-marker))))
1991 ;; interactive startup
1993 (defvar erc-server-history-list nil
1994 "IRC server interactive selection history list.")
1996 (defvar erc-nick-history-list nil
1997 "Nickname interactive selection history list.")
1999 (defun erc-already-logged-in (server port nick)
2000 "Return the buffers corresponding to a NICK on PORT of a session SERVER.
2001 This is determined by looking for the appropriate buffer and checking
2002 whether the connection is still alive.
2003 If no buffer matches, return nil."
2006 (and (erc-server-process-alive)
2007 (string= erc-session-server server)
2008 (erc-port-equal erc-session-port port)
2009 (erc-current-nick-p nick)))))
2011 (if (not (fboundp 'read-passwd))
2012 (defun read-passwd (prompt)
2013 "Substitute for `read-passwd' in early emacsen."
2014 (read-from-minibuffer prompt)))
2016 (defcustom erc-before-connect nil
2017 "Hook called before connecting to a server.
2018 This hook gets executed before `erc' actually invokes `erc-mode'
2019 with your input data. The functions in here get called with three
2020 parameters, SERVER, PORT and NICK."
2024 (defcustom erc-after-connect nil
2025 "Hook called after connecting to a server.
2026 This hook gets executed when an end of MOTD has been received. All
2027 functions in here get called with the parameters SERVER and NICK."
2032 (defun erc-select-read-args ()
2033 "Prompt the user for values of nick, server, port, and password."
2034 (let (user-input server port nick passwd)
2035 (setq user-input (read-from-minibuffer
2037 (erc-compute-server) nil nil 'erc-server-history-list))
2039 (if (string-match "\\(.*\\):\\(.*\\)\\'" user-input)
2040 (setq port (erc-string-to-port (match-string 2 user-input))
2041 user-input (match-string 1 user-input))
2043 (erc-string-to-port (read-from-minibuffer
2044 "IRC port: " (erc-port-to-string
2045 (erc-compute-port))))))
2047 (if (string-match "\\`\\(.*\\)@\\(.*\\)" user-input)
2048 (setq nick (match-string 1 user-input)
2049 user-input (match-string 2 user-input))
2051 (if (erc-already-logged-in server port nick)
2052 (read-from-minibuffer
2053 (erc-format-message 'nick-in-use ?n nick)
2055 nil nil 'erc-nick-history-list)
2056 (read-from-minibuffer
2057 "Nickname: " (erc-compute-nick nick)
2058 nil nil 'erc-nick-history-list))))
2060 (setq server user-input)
2062 (setq passwd (if erc-prompt-for-password
2063 (if (and erc-password
2064 (y-or-n-p "Use the default password? "))
2066 (read-passwd "Password: "))
2068 (when (and passwd (string= "" passwd))
2071 (while (erc-already-logged-in server port nick)
2072 ;; hmm, this is a problem when using multiple connections to a bnc
2073 ;; with the same nick. Currently this code prevents using more than one
2074 ;; bnc with the same nick. actually it would be nice to have
2075 ;; bncs transparent, so that erc-compute-buffer-name displays
2076 ;; the server one is connected to.
2077 (setq nick (read-from-minibuffer
2078 (erc-format-message 'nick-in-use ?n nick)
2080 nil nil 'erc-nick-history-list)))
2081 (list :server server :port port :nick nick :password passwd)))
2084 (defun* erc (&key (server (erc-compute-server))
2085 (port (erc-compute-port))
2086 (nick (erc-compute-nick))
2088 (full-name (erc-compute-full-name)))
2089 "Select connection parameters and run ERC.
2090 Non-interactively, it takes keyword arguments
2091 (server (erc-compute-server))
2092 (port (erc-compute-port))
2093 (nick (erc-compute-nick))
2095 (full-name (erc-compute-full-name)))
2097 That is, if called with
2099 (erc :server \"irc.freenode.net\" :full-name \"Harry S Truman\")
2101 server and full-name will be set to those values, whereas
2102 `erc-compute-port', `erc-compute-nick' and `erc-compute-full-name' will
2103 be invoked for the values of the other parameters."
2104 (interactive (erc-select-read-args))
2106 (run-hook-with-args 'erc-before-connect server port nick)
2107 (erc-open server port nick full-name t password))
2109 (defalias 'erc-select 'erc)
2111 (defun erc-ssl (&rest r)
2112 "Interactively select SSL connection parameters and run ERC.
2113 Arguments are the same as for `erc'."
2114 (interactive (erc-select-read-args))
2115 (let ((erc-server-connect-function 'erc-open-ssl-stream))
2118 (defalias 'erc-select-ssl 'erc-ssl)
2120 (defun erc-open-ssl-stream (name buffer host port)
2121 "Open an SSL stream to an IRC server.
2122 The process will be given the name NAME, its target buffer will be
2123 BUFFER. HOST and PORT specify the connection target."
2124 (when (require 'tls)
2125 (let ((proc (open-tls-stream name buffer host port)))
2126 ;; Ugly hack, but it works for now. Problem is it is
2127 ;; very hard to detect when ssl is established, because s_client
2128 ;; doesn't give any CONNECTIONESTABLISHED kind of message, and
2129 ;; most IRC servers send nothing and wait for you to identify.
2130 ;; Disabled when switching to tls.el -- jas
2134 ;;; Debugging the protocol
2136 (defvar erc-debug-irc-protocol nil
2137 "If non-nil, log all IRC protocol traffic to the buffer \"*erc-protocol*\".
2139 The buffer is created if it doesn't exist.
2141 NOTE: If this variable is non-nil, and you kill the only
2142 visible \"*erc-protocol*\" buffer, it will be recreated shortly,
2143 but you won't see it.
2145 WARNING: Do not set this variable directly! Instead, use the
2146 function `erc-toggle-debug-irc-protocol' to toggle its value.")
2148 (defun erc-log-irc-protocol (string &optional outbound)
2149 "Append STRING to the buffer *erc-protocol*.
2151 This only has any effect if `erc-debug-irc-protocol' is non-nil.
2153 The buffer is created if it doesn't exist.
2155 If OUTBOUND is non-nil, STRING is being sent to the IRC server
2156 and appears in face `erc-input-face' in the buffer."
2157 (when erc-debug-irc-protocol
2158 (let ((network-name (or (ignore-errors (erc-network-name))
2160 (with-current-buffer (get-buffer-create "*erc-protocol*")
2162 (goto-char (point-max))
2163 (let ((inhibit-read-only t))
2164 (insert (if (not outbound)
2165 ;; Cope with the fact that string might
2166 ;; contain multiple lines of text.
2167 (let ((lines (delete "" (split-string string
2170 (dolist (line lines)
2171 (setq result (concat result network-name
2175 (concat network-name " >> " string
2178 (1- (length string))))
2180 'face 'erc-input-face)))))
2181 (let ((orig-win (selected-window))
2182 (debug-buffer-window (get-buffer-window (current-buffer) t)))
2183 (when debug-buffer-window
2184 (select-window debug-buffer-window)
2185 (when (= 1 (count-lines (point) (point-max)))
2186 (goto-char (point-max))
2188 (select-window orig-win)))))))
2190 (defun erc-toggle-debug-irc-protocol (&optional arg)
2191 "Toggle the value of `erc-debug-irc-protocol'.
2193 If ARG is non-nil, show the *erc-protocol* buffer."
2195 (let* ((buf (get-buffer-create "*erc-protocol*")))
2196 (with-current-buffer buf
2197 (erc-view-mode-enter 1)
2198 (when (null (current-local-map))
2199 (let ((inhibit-read-only t))
2200 (insert (erc-make-notice "This buffer displays all IRC protocol traffic exchanged with each server.\n"))
2201 (insert (erc-make-notice "Kill this buffer to terminate protocol logging.\n\n")))
2202 (use-local-map (make-sparse-keymap))
2203 (local-set-key (kbd "RET") 'erc-toggle-debug-irc-protocol))
2204 (add-hook 'kill-buffer-hook
2205 #'(lambda () (setq erc-debug-irc-protocol nil))
2207 (goto-char (point-max))
2208 (let ((inhibit-read-only t))
2209 (insert (erc-make-notice
2210 (format "IRC protocol logging %s at %s -- Press ENTER to toggle logging.\n"
2211 (if erc-debug-irc-protocol "disabled" "enabled")
2212 (current-time-string))))))
2213 (setq erc-debug-irc-protocol (not erc-debug-irc-protocol))
2215 (not (get-buffer-window "*erc-protocol*" t)))
2216 (display-buffer buf t))
2217 (message "IRC protocol traffic logging %s (see buffer *erc-protocol*)."
2218 (if erc-debug-irc-protocol "enabled" "disabled"))))
2224 (defun erc-send-action (tgt str &optional force)
2225 "Send CTCP ACTION information described by STR to TGT."
2226 (erc-send-ctcp-message tgt (format "ACTION %s" str) force)
2227 (erc-display-message
2228 nil 'input (current-buffer)
2229 'ACTION ?n (erc-current-nick) ?a str ?u "" ?h ""))
2231 ;; Display interface
2233 (defun erc-string-invisible-p (string)
2234 "Check whether STRING is invisible or not.
2235 I.e. any char in it has the `invisible' property set."
2236 (text-property-any 0 (length string) 'invisible t string))
2238 (defun erc-display-line-1 (string buffer)
2239 "Display STRING in `erc-mode' BUFFER.
2240 Auxiliary function used in `erc-display-line'. The line gets filtered to
2241 interpret the control characters. Then, `erc-insert-pre-hook' gets called.
2242 If `erc-insert-this' is still t, STRING gets inserted into the buffer.
2243 Afterwards, `erc-insert-modify' and `erc-insert-post-hook' get called.
2244 If STRING is nil, the function does nothing."
2247 (set-buffer (or buffer (process-buffer erc-server-process)))
2248 (let ((insert-position (or (marker-position erc-insert-marker)
2250 (let ((string string) ;; FIXME! Can this be removed?
2251 (buffer-undo-list t)
2252 (inhibit-read-only t))
2253 (unless (string-match "\n$" string)
2254 (setq string (concat string "\n"))
2255 (when (erc-string-invisible-p string)
2256 (erc-put-text-properties 0 (length string) string
2257 '(invisible intangible))))
2258 (erc-log (concat "erc-display-line: " string
2259 (format "(%S)" string) " in buffer "
2260 (format "%s" buffer)))
2261 (setq erc-insert-this t)
2262 (run-hook-with-args 'erc-insert-pre-hook string)
2263 (if (null erc-insert-this)
2264 ;; Leave erc-insert-this set to t as much as possible. Fran
2265 ;; Litterio <franl> has seen erc-insert-this set to nil while
2266 ;; erc-send-pre-hook is running, which should never happen. This
2268 (setq erc-insert-this t)
2269 (save-excursion ;; to restore point in the new buffer
2272 (goto-char insert-position)
2273 (insert-before-markers string)
2274 ;; run insertion hook, with point at restored location
2276 (narrow-to-region insert-position (point))
2277 (run-hooks 'erc-insert-modify-hook)
2278 (run-hooks 'erc-insert-post-hook))))))
2279 (erc-update-undo-list (- (or (marker-position erc-insert-marker)
2281 insert-position))))))
2283 (defun erc-update-undo-list (shift)
2284 ;; Translate buffer positions in buffer-undo-list by SHIFT.
2285 (unless (or (zerop shift) (atom buffer-undo-list))
2286 (let ((list buffer-undo-list) elt)
2288 (setq elt (car list))
2289 (cond ((integerp elt) ; POSITION
2290 (incf (car list) shift))
2291 ((or (atom elt) ; nil, EXTENT
2292 ;; (eq t (car elt)) ; (t HIGH . LOW)
2293 (markerp (car elt))) ; (MARKER . DISTANCE)
2295 ((integerp (car elt)) ; (BEGIN . END)
2296 (incf (car elt) shift)
2297 (incf (cdr elt) shift))
2298 ((stringp (car elt)) ; (TEXT . POSITION)
2299 (incf (cdr elt) (* (if (natnump (cdr elt)) 1 -1) shift)))
2300 ((null (car elt)) ; (nil PROPERTY VALUE BEG . END)
2301 (let ((cons (nthcdr 3 elt)))
2302 (incf (car cons) shift)
2303 (incf (cdr cons) shift)))
2304 ((and (featurep 'xemacs)
2305 (extentp (car elt))) ; (EXTENT START END)
2306 (incf (nth 1 elt) shift)
2307 (incf (nth 2 elt) shift)))
2308 (setq list (cdr list))))))
2310 (defvar erc-valid-nick-regexp "[]a-zA-Z^[;\\`_{}|][]^[;\\`_{}|a-zA-Z0-9-]*"
2311 "Regexp which matches all legal characters in a IRC nickname.")
2313 (defun erc-is-valid-nick-p (nick)
2314 "Check if NICK is a valid IRC nickname."
2315 (string-match (concat "^" erc-valid-nick-regexp "$") nick))
2317 (defun erc-display-line (string &optional buffer)
2318 "Display STRING in the ERC BUFFER.
2319 All screen output must be done through this function. If BUFFER is nil
2320 or omitted, the default ERC buffer for the `erc-session-server' is used.
2321 The BUFFER can be an actual buffer, a list of buffers, 'all or 'active.
2322 If BUFFER = 'all, the string is displayed in all the ERC buffers for the
2323 current session. 'active means the current active buffer
2324 \(`erc-active-buffer'). If the buffer can't be resolved, the current
2325 buffer is used. `erc-display-line-1' is used to display STRING.
2327 If STRING is nil, the function does nothing."
2328 (let ((inhibit-point-motion-hooks t)
2331 ((bufferp buffer) (list buffer))
2332 ((listp buffer) buffer)
2333 ((processp buffer) (list (process-buffer buffer)))
2335 ;; Hmm, or all of the same session server?
2336 (erc-buffer-list nil erc-server-process))
2337 ((and (eq 'active buffer) (erc-active-buffer))
2338 (list (erc-active-buffer)))
2339 ((erc-server-buffer-live-p)
2340 (list (process-buffer erc-server-process)))
2341 (t (list (current-buffer)))))
2342 (when (buffer-live-p buf)
2343 (erc-display-line-1 string buf)
2344 (add-to-list 'new-bufs buf)))
2345 (when (null new-bufs)
2346 (if (erc-server-buffer-live-p)
2347 (erc-display-line-1 string (process-buffer erc-server-process))
2348 (erc-display-line-1 string (current-buffer))))))
2350 (defun erc-display-message-highlight (type string)
2351 "Highlight STRING according to TYPE, where erc-TYPE-face is an ERC face.
2353 See also `erc-make-notice'."
2354 (cond ((eq type 'notice)
2355 (erc-make-notice string))
2357 (erc-put-text-property
2359 'face (or (intern-soft
2360 (concat "erc-" (symbol-name type) "-face"))
2365 (defun erc-display-message (parsed type buffer msg &rest args)
2366 "Display MSG in BUFFER.
2368 ARGS, PARSED, and TYPE are used to format MSG sensibly.
2370 See also `erc-format-message' and `erc-display-line'."
2371 (let ((string (if (symbolp msg)
2372 (apply 'erc-format-message msg args)
2379 (mapc (lambda (type)
2381 (erc-display-message-highlight type string)))
2385 (erc-display-message-highlight type string))))
2387 (if (not (erc-response-p parsed))
2388 (erc-display-line string buffer)
2389 (unless (member (erc-response.command parsed) erc-hide-list)
2390 (erc-put-text-property 0 (length string) 'erc-parsed parsed string)
2391 (erc-put-text-property 0 (length string) 'rear-sticky t string)
2392 (erc-display-line string buffer)))))
2394 (defun erc-message-type-member (position list)
2395 "Return non-nil if the erc-parsed text-property at POSITION is in LIST.
2397 This function relies on the erc-parsed text-property being
2399 (let ((prop-val (get-text-property position 'erc-parsed)))
2400 (and prop-val (member (erc-response.command prop-val) list))))
2402 (defvar erc-send-input-line-function 'erc-send-input-line)
2403 (make-variable-buffer-local 'erc-send-input-line-function)
2405 (defun erc-send-input-line (target line &optional force)
2406 "Send LINE to TARGET.
2408 See also `erc-server-send'."
2409 (setq line (format "PRIVMSG %s :%s"
2411 ;; If the line is empty, we still want to
2412 ;; send it - i.e. an empty pasted line.
2413 (if (string= line "\n")
2416 (erc-server-send line force target))
2418 (defun erc-get-arglist (fun)
2419 "Return the argument list of a function without the parens."
2420 (let ((arglist (format "%S" (erc-function-arglist fun))))
2421 (if (string-match "^(\\(.*\\))$" arglist)
2422 (match-string 1 arglist)
2425 (defun erc-command-name (cmd)
2426 "For CMD being the function name of a ERC command, something like
2427 erc-cmd-FOO, this returns a string /FOO."
2428 (let ((command-name (symbol-name cmd)))
2429 (if (string-match "^erc-cmd-\\(.*\\)$" command-name)
2430 (concat "/" (match-string 1 command-name))
2433 (defun erc-process-input-line (line &optional force no-command)
2434 "Translate LINE to an RFC1459 command and send it based.
2435 Returns non-nil if the command is actually sent to the server, and nil
2438 If the command in the LINE is not bound as a function `erc-cmd-<COMMAND>',
2439 it is passed to `erc-cmd-default'. If LINE is not a command (i.e. doesn't
2440 start with /<COMMAND>) then it is sent as a message.
2442 An optional FORCE argument forces sending the line when flood
2443 protection is in effect. The optional NO-COMMAND argument prohibits
2444 this function from interpreting the line as a command."
2445 (let ((command-list (erc-extract-command-from-line line)))
2446 (if (and command-list
2448 (let* ((cmd (nth 0 command-list))
2449 (args (nth 1 command-list)))
2454 (wrong-number-of-arguments
2455 (erc-display-message nil 'error (current-buffer) 'incorrect-args
2456 ?c (erc-command-name cmd)
2457 ?u (or (erc-get-arglist cmd)
2460 (or (documentation cmd) "")))
2462 (let ((r (erc-default-target)))
2464 (funcall erc-send-input-line-function r line force)
2465 (erc-display-message nil 'error (current-buffer) 'no-target)
2468 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2469 ;; Input commands handlers
2470 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2472 (defun erc-cmd-AMSG (line)
2473 "Send LINE to all channels of the current server that you are on."
2474 (interactive "sSend to all channels you're on: ")
2475 (setq line (erc-trim-string line))
2476 (erc-with-all-buffers-of-server nil
2478 (erc-channel-p (erc-default-target)))
2479 (erc-send-message line)))
2480 (put 'erc-cmd-AMSG 'do-not-parse-args t)
2482 (defun erc-cmd-SAY (line)
2483 "Send LINE to the current query or channel as a message, not a command.
2485 Use this when you want to send a message with a leading '/'. Note
2486 that since multi-line messages are never a command, you don't
2487 need this when pasting multiple lines of text."
2488 (if (string-match "^\\s-*$" line)
2490 (string-match "^ ?\\(.*\\)" line)
2491 (erc-process-input-line (match-string 1 line) nil t)))
2492 (put 'erc-cmd-SAY 'do-not-parse-args t)
2494 (defun erc-cmd-SET (line)
2495 "Set the variable named by the first word in LINE to some VALUE.
2496 VALUE is computed by evaluating the rest of LINE in Lisp."
2498 ((string-match "^\\s-*\\(\\S-+\\)\\s-+\\(.*\\)$" line)
2499 (let ((var (read (concat "erc-" (match-string 1 line))))
2500 (val (read (match-string 2 line))))
2503 (set var (eval val))
2504 (erc-display-message
2505 nil nil 'active (format "Set %S to %S" var val))
2507 (setq var (read (match-string 1 line)))
2510 (set var (eval val))
2511 (erc-display-message
2512 nil nil 'active (format "Set %S to %S" var val))
2514 (erc-display-message nil 'error 'active 'variable-not-bound)
2516 ((string-match "^\\s-*$" line)
2518 (concat "Available user variables:\n"
2523 (let ((val (symbol-value var)))
2524 (concat (format "%S:" var)
2526 (concat "\n" (pp-to-string val))
2527 (format " %S\n" val)))))
2528 (apropos-internal "^erc-" 'user-variable-p))))
2529 (current-buffer)) t)
2531 (defalias 'erc-cmd-VAR 'erc-cmd-SET)
2532 (defalias 'erc-cmd-VARIABLE 'erc-cmd-SET)
2533 (put 'erc-cmd-SET 'do-not-parse-args t)
2535 (defun erc-cmd-default (line)
2538 Commands for which no erc-cmd-xxx exists, are tunnelled through
2539 this function. LINE is sent to the server verbatim, and
2540 therefore has to contain the command itself as well."
2541 (erc-log (format "cmd: DEFAULT: %s" line))
2542 (erc-server-send (substring line 1))
2545 (defun erc-cmd-IGNORE (&optional user)
2546 "Ignore USER. This should be a regexp matching nick!user@host.
2547 If no USER argument is specified, list the contents of `erc-ignore-list'."
2549 (let ((quoted (regexp-quote user)))
2550 (when (and (not (string= user quoted))
2551 (y-or-n-p (format "Use regexp-quoted form (%s) instead? "
2555 (erc-make-notice (format "Now ignoring %s" user))
2557 (with-current-buffer (erc-server-buffer)
2558 (add-to-list 'erc-ignore-list user)))
2559 (if (null (with-current-buffer (erc-server-buffer) erc-ignore-list))
2560 (erc-display-line (erc-make-notice "Ignore list is empty") 'active)
2561 (erc-display-line (erc-make-notice "Ignore list:") 'active)
2562 (mapc #'(lambda (item)
2563 (erc-display-line (erc-make-notice item)
2565 (with-current-buffer (erc-server-buffer) erc-ignore-list))))
2568 (defun erc-cmd-UNIGNORE (user)
2569 "Remove the user specified in USER from the ignore list."
2570 (let ((ignored-nick (car (with-current-buffer (erc-server-buffer)
2571 (erc-member-ignore-case (regexp-quote user)
2572 erc-ignore-list)))))
2573 (unless ignored-nick
2574 (if (setq ignored-nick (erc-ignored-user-p user))
2575 (unless (y-or-n-p (format "Remove this regexp (%s)? "
2577 (setq ignored-nick nil))
2579 (erc-make-notice (format "%s is not currently ignored!" user))
2583 (erc-make-notice (format "No longer ignoring %s" user))
2585 (with-current-buffer (erc-server-buffer)
2586 (setq erc-ignore-list (delete ignored-nick erc-ignore-list)))))
2589 (defun erc-cmd-CLEAR ()
2590 "Clear the window content."
2594 (defun erc-cmd-OPS ()
2595 "Show the ops in the current channel."
2598 (if erc-channel-users
2599 (maphash (lambda (nick user-data)
2600 (let ((cuser (cdr user-data)))
2602 (erc-channel-user-op cuser))
2603 (setq ops (cons (erc-server-user-nickname
2607 (setq ops (sort ops 'string-lessp))
2609 (erc-display-message
2610 nil 'notice (current-buffer) 'ops
2611 ?i (length ops) ?s (if (> (length ops) 1) "s" "")
2612 ?o (mapconcat 'identity ops " "))
2613 (erc-display-message nil 'notice (current-buffer) 'ops-none)))
2616 (defun erc-cmd-COUNTRY (tld)
2617 "Display the country associated with the top level domain TLD."
2618 (require 'mail-extr)
2619 (let ((co (ignore-errors (what-domain tld))))
2621 (erc-display-message
2622 nil 'notice 'active 'country ?c co ?d tld)
2623 (erc-display-message
2624 nil 'notice 'active 'country-unknown ?d tld))
2627 (defun erc-cmd-AWAY (line)
2628 "Mark the user as being away, the reason being indicated by LINE.
2629 If no reason is given, unset away status."
2630 (when (string-match "^\\s-*\\(.*\\)$" line)
2631 (let ((reason (match-string 1 line)))
2632 (erc-log (format "cmd: AWAY: %s" reason))
2634 (if (string= reason "")
2636 (concat "AWAY :" reason))))
2638 (put 'erc-cmd-AWAY 'do-not-parse-args t)
2640 (defun erc-cmd-GAWAY (line)
2641 "Mark the user as being away everywhere, the reason being indicated by LINE."
2642 ;; on all server buffers.
2643 (erc-with-all-buffers-of-server nil
2644 #'erc-server-buffer-p
2645 (erc-cmd-AWAY line)))
2646 (put 'erc-cmd-GAWAY 'do-not-parse-args t)
2648 (defun erc-cmd-CTCP (nick cmd &rest args)
2649 "Send a Client To Client Protocol message to NICK.
2651 CMD is the CTCP command, possible values being ECHO, FINGER, CLIENTINFO, TIME,
2652 VERSION and so on. It is called with ARGS."
2653 (let ((str (concat cmd
2655 (concat " " (mapconcat #'identity args " "))))))
2656 (erc-log (format "cmd: CTCP [%s]: [%s]" nick str))
2657 (erc-send-ctcp-message nick str)
2660 (defun erc-cmd-HELP (&optional func)
2661 "Popup help information.
2663 If FUNC contains a valid function or variable, help about that
2664 will be displayed. If FUNC is empty, display an apropos about
2665 ERC commands. Otherwise, do `apropos' in the ERC namespace
2669 To find out about erc and bbdb, do
2672 For help about the WHOIS command, do:
2675 For a list of user commands (/join /part, ...):
2678 (let* ((sym (or (let ((sym (intern-soft
2679 (concat "erc-cmd-" (upcase func)))))
2680 (if (and sym (or (boundp sym) (fboundp sym)))
2683 (let ((sym (intern-soft func)))
2684 (if (and sym (or (boundp sym) (fboundp sym)))
2687 (let ((sym (intern-soft (concat "erc-" func))))
2688 (if (and sym (or (boundp sym) (fboundp sym)))
2693 ((boundp sym) (describe-variable sym))
2694 ((fboundp sym) (describe-function sym))
2696 (apropos-command (concat "erc-.*" func) nil
2699 (get x 'custom-type))))
2701 (apropos "erc-cmd-")
2702 (message "Type C-h m to get additional information about keybindings.")
2705 (defalias 'erc-cmd-H 'erc-cmd-HELP)
2707 (defun erc-cmd-JOIN (channel &optional key)
2708 "Join the channel given in CHANNEL, optionally with KEY.
2709 If CHANNEL is specified as \"-invite\", join the channel to which you
2710 were most recently invited. See also `invitation'."
2712 (if (string= (upcase channel) "-INVITE")
2714 (setq chnl erc-invitation)
2715 (erc-display-message nil 'error (current-buffer) 'no-invitation))
2716 (setq chnl (erc-ensure-channel-name channel)))
2718 ;; Prevent double joining of same channel on same server.
2719 (let ((joined-channels
2720 (mapcar #'(lambda (chanbuf)
2721 (with-current-buffer chanbuf (erc-default-target)))
2722 (erc-channel-list erc-server-process))))
2723 (if (erc-member-ignore-case chnl joined-channels)
2724 (switch-to-buffer (car (erc-member-ignore-case chnl
2726 (erc-log (format "cmd: JOIN: %s" chnl))
2728 (erc-server-send (format "JOIN %s %s" chnl key))
2729 (erc-server-send (format "JOIN %s" chnl)))))))
2732 (defalias 'erc-cmd-CHANNEL 'erc-cmd-JOIN)
2733 (defalias 'erc-cmd-J 'erc-cmd-JOIN)
2735 (defvar erc-channel-new-member-names nil
2736 "If non-nil, a names list is currently being received.
2738 If non-nil, this variable is a hash-table that associates
2739 received nicks with t.")
2740 (make-variable-buffer-local 'erc-channel-new-member-names)
2742 (defun erc-cmd-NAMES (&optional channel)
2743 "Display the users in CHANNEL.
2744 If CHANNEL is not specified, display the users in the current channel.
2745 This function clears the channel name list first, then sends the
2747 (let ((tgt (or (and (erc-channel-p channel) channel)
2748 (erc-default-target))))
2749 (if (and tgt (erc-channel-p tgt))
2751 (erc-log (format "cmd: DEFAULT: NAMES %s" tgt))
2754 (erc-channel-begin-receiving-names))
2755 (erc-server-send (concat "NAMES " tgt)))
2756 (erc-display-message nil 'error (current-buffer) 'no-default-channel)))
2758 (defalias 'erc-cmd-N 'erc-cmd-NAMES)
2760 (defun erc-cmd-KICK (target &optional reason-or-nick &rest reasonwords)
2761 "Kick the user indicated in LINE from the current channel.
2762 LINE has the format: \"#CHANNEL NICK REASON\" or \"NICK REASON\"."
2763 (let ((reasonstring (mapconcat 'identity reasonwords " ")))
2764 (if (string= "" reasonstring)
2765 (setq reasonstring (format "Kicked by %s" (erc-current-nick))))
2766 (if (erc-channel-p target)
2767 (let ((nick reason-or-nick))
2768 (erc-log (format "cmd: KICK: %s/%s: %s" nick target reasonstring))
2769 (erc-server-send (format "KICK %s %s :%s" target nick reasonstring)
2773 (let ((ch (erc-default-target)))
2774 (setq reasonstring (concat
2775 (if reason-or-nick (concat reason-or-nick " "))
2780 (format "cmd: KICK: %s/%s: %s" target ch reasonstring))
2782 (format "KICK %s %s :%s" ch target reasonstring) nil ch))
2783 (erc-display-message nil 'error (current-buffer)
2784 'no-default-channel))
2787 (defvar erc-script-args nil)
2789 (defun erc-cmd-LOAD (line)
2790 "Load the script provided in the LINE.
2791 If LINE continues beyond the file name, the rest of
2792 it is put in a (local) variable `erc-script-args',
2793 which can be used in Emacs Lisp scripts.
2795 The optional FORCE argument is ignored here - you can't force loading
2796 a script after exceeding the flood threshold."
2798 ((string-match "^\\s-*\\(\\S-+\\)\\(.*\\)$" line)
2799 (let* ((file-to-find (match-string 1 line))
2800 (erc-script-args (match-string 2 line))
2801 (file (erc-find-file file-to-find erc-script-path)))
2802 (erc-log (format "cmd: LOAD: %s" file-to-find))
2805 (erc-display-message nil 'error (current-buffer)
2806 'cannot-find-file ?f file-to-find))
2807 ((not (file-readable-p file))
2808 (erc-display-message nil 'error (current-buffer)
2809 'cannot-read-file ?f file))
2811 (message "Loading \'%s\'..." file)
2812 (erc-load-script file)
2813 (message "Loading \'%s\'...done" file))))
2817 (defun erc-cmd-WHOIS (user &optional server)
2818 "Display whois information for USER.
2820 If SERVER is non-nil, use that, rather than the current server."
2821 ;; FIXME: is the above docstring correct? -- Lawrence 2004-01-08
2822 (let ((send (if server
2823 (format "WHOIS %s %s" user server)
2824 (format "WHOIS %s" user))))
2825 (erc-log (format "cmd: %s" send))
2826 (erc-server-send send)
2828 (defalias 'erc-cmd-WI 'erc-cmd-WHOIS)
2830 (defun erc-cmd-WHOAMI ()
2831 "Display whois information about yourself."
2832 (erc-cmd-WHOIS (erc-current-nick))
2835 (defun erc-cmd-IDLE (nick)
2836 "Show the length of time NICK has been idle."
2837 (let ((serverbuf (erc-server-buffer))
2838 (origbuf (current-buffer))
2840 (with-current-buffer serverbuf
2841 (add-to-list 'symlist
2842 (cons (erc-once-with-server-event
2845 (erc-response.command-args parsed))))
2846 'erc-server-311-functions))
2847 (add-to-list 'symlist
2848 (cons (erc-once-with-server-event
2851 (erc-response.command-args parsed))))
2852 'erc-server-312-functions))
2853 (add-to-list 'symlist
2854 (cons (erc-once-with-server-event
2857 (erc-response.command-args parsed))))
2858 'erc-server-318-functions))
2859 (add-to-list 'symlist
2860 (cons (erc-once-with-server-event
2863 (erc-response.command-args parsed))))
2864 'erc-server-319-functions))
2865 (add-to-list 'symlist
2866 (cons (erc-once-with-server-event
2869 (erc-response.command-args parsed))))
2870 'erc-server-320-functions))
2871 (add-to-list 'symlist
2872 (cons (erc-once-with-server-event
2875 (erc-response.command-args parsed))))
2876 'erc-server-330-functions))
2877 (add-to-list 'symlist
2878 (cons (erc-once-with-server-event
2883 (erc-response.command-args parsed)))))
2886 (format "%s has been idle for %s."
2887 (erc-string-no-properties ,nick)
2888 (erc-seconds-to-string idleseconds)))
2891 'erc-server-317-functions))
2893 ;; Send the WHOIS command.
2894 (erc-cmd-WHOIS nick)
2896 ;; Remove the uninterned symbols from the server hooks that did not run.
2897 (run-at-time 20 nil `(lambda ()
2898 (with-current-buffer ,(current-buffer)
2899 (dolist (sym ',symlist)
2900 (let ((hooksym (cdr sym))
2901 (funcsym (car sym)))
2902 (remove-hook hooksym funcsym t))))))))
2905 (defun erc-cmd-DESCRIBE (line)
2906 "Pose some action to a certain user.
2907 LINE has the format \"USER ACTION\"."
2910 "^\\s-*\\(\\S-+\\)\\s-\\(.*\\)$" line)
2911 (let ((dst (match-string 1 line))
2912 (s (match-string 2 line)))
2913 (erc-log (format "cmd: DESCRIBE: [%s] %s" dst s))
2914 (erc-send-action dst s))
2917 (put 'erc-cmd-DESCRIBE 'do-not-parse-args t)
2919 (defun erc-cmd-ME (line)
2920 "Send LINE as an action."
2922 ((string-match "^\\s-\\(.*\\)$" line)
2923 (let ((s (match-string 1 line)))
2924 (erc-log (format "cmd: ME: %s" s))
2925 (erc-send-action (erc-default-target) s))
2928 (put 'erc-cmd-ME 'do-not-parse-args t)
2930 (defun erc-cmd-LASTLOG (line)
2931 "Show all lines in the current buffer matching the regexp LINE.
2933 If a match spreads across multiple lines, all those lines are shown.
2935 The lines are shown in a buffer named `*Occur*'.
2936 It serves as a menu to find any of the occurrences in this buffer.
2937 \\[describe-mode] in that buffer will explain how.
2939 If LINE contains upper case characters (excluding those preceded by `\'),
2940 the matching is case-sensitive."
2943 (put 'erc-cmd-LASTLOG 'do-not-parse-args t)
2945 (defun erc-send-message (line &optional force)
2946 "Send LINE to the current channel or user and display it.
2948 See also `erc-message' and `erc-display-line'."
2949 (erc-message "PRIVMSG" (concat (erc-default-target) " " line) force)
2951 (concat (erc-format-my-nick) line)
2953 ;; FIXME - treat multiline, run hooks, or remove me?
2956 (defun erc-cmd-MODE (line)
2957 "Change or display the mode value of a channel or user.
2958 The first word specifies the target. The rest is the mode string
2961 If only one word is given, display the mode of that target.
2963 A list of valid mode strings for Freenode may be found at
2964 `http://freenode.net/using_the_network.shtml'."
2966 ((string-match "^\\s-\\(.*\\)$" line)
2967 (let ((s (match-string 1 line)))
2968 (erc-log (format "cmd: MODE: %s" s))
2969 (erc-server-send (concat "MODE " line)))
2972 (put 'erc-cmd-MODE 'do-not-parse-args t)
2974 (defun erc-cmd-NOTICE (channel-or-user &rest message)
2975 "Send a notice to the channel or user given as the first word.
2976 The rest is the message to send."
2977 (erc-message "NOTICE" (concat channel-or-user " "
2978 (mapconcat #'identity message " "))))
2980 (defun erc-cmd-MSG (line)
2981 "Send a message to the channel or user given as the first word in LINE.
2983 The rest of LINE is the message to send."
2984 (erc-message "PRIVMSG" line))
2986 (defalias 'erc-cmd-M 'erc-cmd-MSG)
2987 (put 'erc-cmd-MSG 'do-not-parse-args t)
2989 (defun erc-cmd-SQUERY (line)
2990 "Send a Service Query to the service given as the first word in LINE.
2992 The rest of LINE is the message to send."
2993 (erc-message "SQUERY" line))
2995 (defun erc-cmd-NICK (nick)
2996 "Change current nickname to NICK."
2997 (erc-log (format "cmd: NICK: %s (erc-bad-nick: %S)" nick erc-bad-nick))
2998 (let ((nicklen (cdr (assoc "NICKLEN" (with-current-buffer (erc-server-buffer)
2999 erc-server-parameters)))))
3000 (and nicklen (> (length nick) (string-to-number nicklen))
3001 (erc-display-message
3002 nil 'notice 'active 'nick-too-long
3003 ?i (length nick) ?l nicklen)))
3004 (erc-server-send (format "NICK %s" nick))
3006 (erc-set-current-nick nick)
3007 (erc-update-mode-line)
3008 (setq erc-bad-nick nil)))
3011 (defun erc-cmd-PART (line)
3012 "When LINE is an empty string, leave the current channel.
3013 Otherwise leave the channel indicated by LINE."
3015 ((string-match "^\\s-*\\([&#+!]\\S-+\\)\\s-?\\(.*\\)$" line)
3016 (let* ((ch (match-string 1 line))
3017 (msg (match-string 2 line))
3018 (reason (funcall erc-part-reason (if (equal msg "") nil msg))))
3019 (erc-log (format "cmd: PART: %s: %s" ch reason))
3020 (erc-server-send (if (string= reason "")
3021 (format "PART %s" ch)
3022 (format "PART %s :%s" ch reason))
3025 ((string-match "^\\s-*\\(.*\\)$" line)
3026 (let* ((ch (erc-default-target))
3027 (msg (match-string 1 line))
3028 (reason (funcall erc-part-reason (if (equal msg "") nil msg))))
3029 (if (and ch (erc-channel-p ch))
3031 (erc-log (format "cmd: PART: %s: %s" ch reason))
3032 (erc-server-send (if (string= reason "")
3033 (format "PART %s" ch)
3034 (format "PART %s :%s" ch reason))
3036 (erc-display-message nil 'error (current-buffer) 'no-target)))
3039 (put 'erc-cmd-PART 'do-not-parse-args t)
3041 (defalias 'erc-cmd-LEAVE 'erc-cmd-PART)
3043 (defun erc-cmd-PING (recipient)
3045 (let ((time (format "%f" (erc-current-time))))
3046 (erc-log (format "cmd: PING: %s" time))
3047 (erc-cmd-CTCP recipient "PING" time)))
3049 (defun erc-cmd-QUOTE (line)
3050 "Send LINE directly to the server.
3051 All the text given as argument is sent to the sever as unmodified,
3052 just as you provided it. Use this command with care!"
3054 ((string-match "^ ?\\(.+\\)$" line)
3055 (erc-server-send (match-string 1 line)))
3057 (put 'erc-cmd-QUOTE 'do-not-parse-args t)
3059 (defun erc-cmd-QUERY (&optional user)
3060 "Open a query with USER.
3061 The type of query window/frame/etc will depend on the value of
3062 `erc-join-buffer'. If USER is omitted, close the current query buffer if one
3063 exists - except this is broken now ;-)"
3065 (list (read-from-minibuffer "Start a query with: " nil)))
3066 (let ((session-buffer (erc-server-buffer)))
3068 (erc-query user session-buffer)
3069 ;; currently broken, evil hack to display help anyway
3070 ;(erc-delete-query))))
3071 (signal 'wrong-number-of-arguments ""))))
3072 (defalias 'erc-cmd-Q 'erc-cmd-QUERY)
3074 (defun erc-quit-reason-normal (&optional s)
3075 "Normal quit message.
3077 If S is non-nil, it will be used as the quit reason."
3079 (format "\C-bERC\C-b %s (IRC client for Emacs)"; - \C-b%s\C-b"
3080 erc-version-string) ; erc-official-location)
3083 (defun erc-quit-reason-zippy (&optional s)
3084 "Zippy quit message.
3086 If S is non-nil, it will be used as the quit reason."
3088 (erc-replace-regexp-in-string "\n" "" (yow))))
3090 (defun erc-quit-reason-various (s)
3091 "Choose a quit reason based on S (a string)."
3092 (when (featurep 'xemacs) (require 'poe))
3093 (let ((res (car (assoc-default (or s "")
3094 erc-quit-reason-various-alist 'string-match))))
3096 ((functionp res) (funcall res))
3099 (t (erc-quit-reason-normal)))))
3101 (defun erc-part-reason-normal (&optional s)
3102 "Normal part message.
3104 If S is non-nil, it will be used as the quit reason."
3106 (format "\C-bERC\C-b %s (IRC client for Emacs)"; - \C-b%s\C-b"
3107 erc-version-string) ; erc-official-location)
3110 (defun erc-part-reason-zippy (&optional s)
3111 "Zippy part message.
3113 If S is non-nil, it will be used as the quit reason."
3115 (erc-replace-regexp-in-string "\n" "" (yow))))
3117 (defun erc-part-reason-various (s)
3118 "Choose a part reason based on S (a string)."
3119 (when (featurep 'xemacs) (require 'poe))
3120 (let ((res (car (assoc-default (or s "")
3121 erc-part-reason-various-alist 'string-match))))
3123 ((functionp res) (funcall res))
3126 (t (erc-part-reason-normal)))))
3128 (defun erc-cmd-QUIT (reason)
3129 "Disconnect from the current server.
3130 If REASON is omitted, display a default quit message, otherwise display
3131 the message given by REASON."
3135 ((string-match "^\\s-*\\(.*\\)$" reason)
3136 (let* ((s (match-string 1 reason))
3137 (buffer (erc-server-buffer))
3138 (reason (funcall erc-quit-reason (if (equal s "") nil s))))
3139 (with-current-buffer (if (and buffer
3143 (erc-log (format "cmd: QUIT: %s" reason))
3144 (setq erc-server-quitting t)
3145 (erc-set-active-buffer (erc-server-buffer))
3146 (erc-server-send (format "QUIT :%s" reason)))
3147 (run-hook-with-args 'erc-quit-hook erc-server-process)
3148 (when erc-kill-queries-on-quit
3149 (erc-kill-query-buffers erc-server-process)))
3153 (defalias 'erc-cmd-BYE 'erc-cmd-QUIT)
3154 (defalias 'erc-cmd-EXIT 'erc-cmd-QUIT)
3155 (defalias 'erc-cmd-SIGNOFF 'erc-cmd-QUIT)
3156 (put 'erc-cmd-QUIT 'do-not-parse-args t)
3158 (defun erc-cmd-GQUIT (reason)
3159 "Disconnect from all servers at once with the same quit REASON."
3160 (erc-with-all-buffers-of-server nil #'(lambda ()
3161 (and (erc-server-buffer-p)
3162 (erc-server-process-alive)))
3163 (erc-cmd-QUIT reason)))
3165 (defalias 'erc-cmd-GQ 'erc-cmd-GQUIT)
3166 (put 'erc-cmd-GQUIT 'do-not-parse-args t)
3168 (defun erc-cmd-SERVER (server)
3169 "Connect to SERVER, leaving existing connection intact."
3170 (erc-log (format "cmd: SERVER: %s" server))
3172 (erc :server server :nick (erc-current-nick))
3174 (message "Cannot find host %s." server)
3179 (defvar motif-version-string)
3180 (defvar gtk-version-string))
3182 (defun erc-cmd-SV ()
3183 "Say the current ERC and Emacs version into channel."
3184 (erc-send-message (format "I'm using ERC %s with %s %s (%s%s) of %s."
3186 (if (featurep 'xemacs) "XEmacs" "GNU Emacs")
3188 system-configuration
3190 (cond ((featurep 'motif)
3191 (concat ", " (substring
3192 motif-version-string 4)))
3194 (concat ", GTK+ Version "
3195 gtk-version-string))
3196 ((featurep 'mac-carbon) ", Mac Carbon")
3197 ((featurep 'x-toolkit) ", X toolkit")
3199 (if (and (boundp 'x-toolkit-scroll-bars)
3200 (memq x-toolkit-scroll-bars
3202 (format ", %s scroll bars"
3203 (capitalize (symbol-name
3204 x-toolkit-scroll-bars)))
3206 (if (featurep 'multi-tty) ", multi-tty" ""))
3207 erc-emacs-build-time))
3210 (defun erc-cmd-SM ()
3211 "Say the current ERC modes into channel."
3212 (erc-send-message (format "I'm using the following modules: %s!"
3216 (defun erc-cmd-DEOP (&rest people)
3217 "Remove the operator setting from user(s) given in PEOPLE."
3218 (when (> (length people) 0)
3219 (erc-server-send (concat "MODE " (erc-default-target)
3221 (make-string (length people) ?o)
3223 (mapconcat 'identity people " ")))
3226 (defun erc-cmd-OP (&rest people)
3227 "Add the operator setting to users(s) given in PEOPLE."
3228 (when (> (length people) 0)
3229 (erc-server-send (concat "MODE " (erc-default-target)
3231 (make-string (length people) ?o)
3233 (mapconcat 'identity people " ")))
3236 (defun erc-cmd-TIME (&optional line)
3237 "Request the current time and date from the current server."
3239 ((and line (string-match "^\\s-*\\(.*\\)$" line))
3240 (let ((args (match-string 1 line)))
3241 (erc-log (format "cmd: TIME: %s" args))
3242 (erc-server-send (concat "TIME " args)))
3244 (t (erc-server-send "TIME"))))
3245 (defalias 'erc-cmd-DATE 'erc-cmd-TIME)
3247 (defun erc-cmd-TOPIC (topic)
3248 "Set or request the topic for a channel.
3249 LINE has the format: \"#CHANNEL TOPIC\", \"#CHANNEL\", \"TOPIC\"
3250 or the empty string.
3252 If no #CHANNEL is given, the default channel is used. If TOPIC is
3253 given, the channel topic is modified, otherwise the current topic will
3256 ;; /topic #channel TOPIC
3257 ((string-match "^\\s-*\\([&#+!]\\S-+\\)\\s-\\(.*\\)$" topic)
3258 (let ((ch (match-string 1 topic))
3259 (topic (match-string 2 topic)))
3260 (erc-log (format "cmd: TOPIC [%s]: %s" ch topic))
3261 (erc-server-send (format "TOPIC %s :%s" ch topic) nil ch))
3264 ((string-match "^\\s-*\\([&#+!]\\S-+\\)" topic)
3265 (let ((ch (match-string 1 topic)))
3266 (erc-server-send (format "TOPIC %s" ch) nil ch)
3269 ((string-match "^\\s-*$" topic)
3270 (let ((ch (erc-default-target)))
3271 (erc-server-send (format "TOPIC %s" ch) nil ch)
3274 ((string-match "^\\s-*\\(.*\\)$" topic)
3275 (let ((ch (erc-default-target))
3276 (topic (match-string 1 topic)))
3277 (if (and ch (erc-channel-p ch))
3279 (erc-log (format "cmd: TOPIC [%s]: %s" ch topic))
3280 (erc-server-send (format "TOPIC %s :%s" ch topic) nil ch))
3281 (erc-display-message nil 'error (current-buffer) 'no-target)))
3284 (defalias 'erc-cmd-T 'erc-cmd-TOPIC)
3285 (put 'erc-cmd-TOPIC 'do-not-parse-args t)
3287 (defun erc-cmd-APPENDTOPIC (topic)
3288 "Append TOPIC to the current channel topic, separated by a space."
3289 (let ((oldtopic erc-channel-topic))
3290 ;; display help when given no arguments
3291 (when (string-match "^\\s-*$" topic)
3292 (signal 'wrong-number-of-arguments nil))
3293 ;; strip trailing ^O
3294 (when (string-match "\\(.*\\)\C-o" oldtopic)
3295 (erc-cmd-TOPIC (concat (match-string 1 oldtopic) topic)))))
3296 (defalias 'erc-cmd-AT 'erc-cmd-APPENDTOPIC)
3297 (put 'erc-cmd-APPENDTOPIC 'do-not-parse-args t)
3299 (defun erc-cmd-CLEARTOPIC (&optional channel)
3300 "Clear the topic for a CHANNEL.
3301 If CHANNEL is not specified, clear the topic for the default channel."
3302 (interactive "sClear topic of channel (RET is current channel): ")
3303 (let ((chnl (or (and (erc-channel-p channel) channel) (erc-default-target))))
3305 (erc-server-send (format "TOPIC %s :" chnl))
3310 (defvar erc-channel-banlist nil
3311 "A list of bans seen for the current channel.
3313 Each ban is an alist of the form:
3316 The property `received-from-server' indicates whether
3317 or not the ban list has been requested from the server.")
3318 (make-variable-buffer-local 'erc-channel-banlist)
3319 (put 'erc-channel-banlist 'received-from-server nil)
3321 (defun erc-cmd-BANLIST ()
3322 "Pretty-print the contents of `erc-channel-banlist'.
3324 The ban list is fetched from the server if necessary."
3325 (let ((chnl (erc-default-target))
3326 (chnl-name (buffer-name)))
3329 ((not (erc-channel-p chnl))
3330 (erc-display-line (erc-make-notice "You're not on a channel\n")
3333 ((not (get 'erc-channel-banlist 'received-from-server))
3334 (let ((old-367-hook erc-server-367-functions))
3335 (setq erc-server-367-functions 'erc-banlist-store
3336 erc-channel-banlist nil)
3337 ;; fetch the ban list then callback
3338 (with-current-buffer (erc-server-buffer)
3339 (erc-once-with-server-event
3341 `(with-current-buffer ,chnl-name
3342 (put 'erc-channel-banlist 'received-from-server t)
3343 (setq erc-server-367-functions ',old-367-hook)
3346 (erc-server-send (format "MODE %s b" chnl)))))
3348 ((null erc-channel-banlist)
3349 (erc-display-line (erc-make-notice
3350 (format "No bans for channel: %s\n" chnl))
3352 (put 'erc-channel-banlist 'received-from-server nil))
3355 (let* ((erc-fill-column (or (and (boundp 'erc-fill-column)
3357 (and (boundp 'fill-column)
3359 (1- (window-width))))
3360 (separator (make-string erc-fill-column ?=))
3362 "%-" (number-to-string (/ erc-fill-column 2)) "s"
3363 "%" (number-to-string (/ erc-fill-column 2)) "s")))
3366 (erc-make-notice (format "Ban list for channel: %s\n"
3367 (erc-default-target)))
3370 (erc-display-line separator 'active)
3371 (erc-display-line (format fmt "Ban Mask" "Banned By") 'active)
3372 (erc-display-line separator 'active)
3378 (truncate-string-to-width (cdr x) (/ erc-fill-column 2))
3380 (truncate-string-to-width (car x) (/ erc-fill-column 2))
3383 erc-channel-banlist)
3385 (erc-display-line (erc-make-notice "End of Ban list")
3387 (put 'erc-channel-banlist 'received-from-server nil)))))
3390 (defalias 'erc-cmd-BL 'erc-cmd-BANLIST)
3392 (defun erc-cmd-MASSUNBAN ()
3395 Unban all currently banned users in the current channel."
3396 (let ((chnl (erc-default-target)))
3399 ((not (erc-channel-p chnl))
3401 (erc-make-notice "You're not on a channel\n")
3404 ((not (get 'erc-channel-banlist 'received-from-server))
3405 (let ((old-367-hook erc-server-367-functions))
3406 (setq erc-server-367-functions 'erc-banlist-store)
3407 ;; fetch the ban list then callback
3408 (with-current-buffer (erc-server-buffer)
3409 (erc-once-with-server-event
3411 `(with-current-buffer ,chnl
3412 (put 'erc-channel-banlist 'received-from-server t)
3413 (setq erc-server-367-functions ,old-367-hook)
3416 (erc-server-send (format "MODE %s b" chnl)))))
3418 (t (let ((bans (mapcar 'cdr erc-channel-banlist)))
3420 ;; Glob the bans into groups of three, and carry out the unban.
3421 ;; eg. /mode #foo -bbb a*!*@* b*!*@* c*!*@*
3425 (format "MODE %s -%s %s" (erc-default-target)
3426 (make-string (length x) ?b)
3427 (mapconcat 'identity x " "))))
3428 (erc-group-list bans 3))))
3431 (defalias 'erc-cmd-MUB 'erc-cmd-MASSUNBAN)
3433 ;;;; End of IRC commands
3435 (defun erc-ensure-channel-name (channel)
3436 "Return CHANNEL if it is a valid channel name.
3437 Eventually add a # in front of it, if that turns it into a valid channel name."
3438 (if (erc-channel-p channel)
3440 (concat "#" channel)))
3442 (defun erc-grab-region (start end)
3443 "Copy the region between START and END in a recreatable format.
3445 Converts all the IRC text properties in each line of the region
3446 into control codes and writes them to a separate buffer. The
3447 resulting text may be used directly as a script to generate this
3450 (erc-set-active-buffer (current-buffer))
3452 (let* ((cb (current-buffer))
3453 (buf (generate-new-buffer erc-grab-buffer-name))
3454 (region (buffer-substring start end))
3455 (lines (erc-split-multiline-safe region)))
3457 (dolist (line lines)
3458 (insert (concat line "\n")))
3460 (switch-to-buffer-other-window buf)))
3461 (message "erc-grab-region doesn't grab colors etc. anymore. If you use this, please tell the maintainers.")
3464 (defun erc-display-prompt (&optional buffer pos prompt face)
3465 "Display PROMPT in BUFFER at position POS.
3466 Display an ERC prompt in BUFFER.
3468 If PROMPT is nil, one is constructed with the function `erc-prompt'.
3469 If BUFFER is nil, the `current-buffer' is used.
3470 If POS is nil, PROMPT will be displayed at `point'.
3471 If FACE is non-nil, it will be used to propertize the prompt. If it is nil,
3472 `erc-prompt-face' will be used."
3473 (let* ((prompt (or prompt (erc-prompt)))
3475 (ob (current-buffer)))
3476 ;; We cannot use save-excursion because we move point, therefore
3477 ;; we resort to the ol' ob trick to restore this.
3478 (when (and buffer (bufferp buffer))
3479 (set-buffer buffer))
3481 ;; now save excursion again to store where point and mark are
3482 ;; in the current buffer
3484 (setq pos (or pos (point)))
3487 ;; Do not extend the text properties when typing at the end
3488 ;; of the prompt, but stuff typed in front of the prompt
3489 ;; shall remain part of the prompt.
3490 (setq prompt (erc-propertize prompt
3491 'start-open t ; XEmacs
3492 'rear-nonsticky t ; Emacs
3496 (erc-put-text-property 0 (1- (length prompt))
3497 'face (or face 'erc-prompt-face)
3500 ;; Set the input marker
3501 (set-marker erc-input-marker (point)))
3503 ;; Now we are back at the old position. If the prompt was
3504 ;; inserted here or before us, advance point by the length of
3506 (when (or (not pos) (<= (point) pos))
3508 ;; Clear the undo buffer now, so the user can undo his stuff,
3509 ;; but not the stuff we did. Sneaky!
3510 (setq buffer-undo-list nil)
3513 ;; interactive operations
3515 (defun erc-input-message ()
3516 "Read input from the minibuffer."
3518 (let ((minibuffer-allow-text-properties t)
3519 (read-map minibuffer-local-map))
3520 (insert (read-from-minibuffer "Message: "
3521 (string last-command-char) read-map))
3522 (erc-send-current-line)))
3524 (defvar erc-action-history-list ()
3525 "History list for interactive action input.")
3527 (defun erc-input-action ()
3528 "Interactively input a user action and send it to IRC."
3530 (erc-set-active-buffer (current-buffer))
3531 (let ((action (read-from-minibuffer
3532 "Action: " nil nil nil 'erc-action-history-list)))
3533 (if (not (string-match "^\\s-*$" action))
3534 (erc-send-action (erc-default-target) action))))
3536 (defun erc-join-channel (channel &optional key)
3539 If `point' is at the beginning of a channel name, use that as default."
3542 (let ((chnl (if (looking-at "\\([&#+!][^ \n]+\\)") (match-string 1) ""))
3543 (table (when (erc-server-buffer-live-p)
3544 (set-buffer (process-buffer erc-server-process))
3546 (completing-read "Join channel: " table nil nil nil nil chnl))
3547 (when erc-prompt-for-channel-key
3548 (read-from-minibuffer "Channel key (RET for none): " nil))))
3549 (erc-cmd-JOIN channel (when (>= (length key) 1) key)))
3551 (defun erc-part-from-channel (reason)
3552 "Part from the current channel and prompt for a REASON."
3555 (if (and (boundp 'reason) (stringp reason) (not (string= reason "")))
3557 (read-from-minibuffer (concat "Reason for leaving " (erc-default-target)
3559 (erc-cmd-PART (concat (erc-default-target)" " reason)))
3561 (defun erc-set-topic (topic)
3562 "Prompt for a TOPIC for the current channel."
3565 (read-from-minibuffer
3566 (concat "Set topic of " (erc-default-target) ": ")
3567 (when erc-channel-topic
3568 (cons (apply 'concat (butlast (split-string erc-channel-topic "\C-o")))
3570 (let ((topic-list (split-string topic "\C-o"))) ; strip off the topic setter
3571 (erc-cmd-TOPIC (concat (erc-default-target) " " (car topic-list)))))
3573 (defun erc-set-channel-limit (&optional limit)
3574 "Set a LIMIT for the current channel. Remove limit if nil.
3575 Prompt for one if called interactively."
3576 (interactive (list (read-from-minibuffer
3577 (format "Limit for %s (RET to remove limit): "
3578 (erc-default-target)))))
3579 (let ((tgt (erc-default-target)))
3580 (if (and limit (>= (length limit) 1))
3581 (erc-server-send (format "MODE %s +l %s" tgt limit))
3582 (erc-server-send (format "MODE %s -l" tgt)))))
3584 (defun erc-set-channel-key (&optional key)
3585 "Set a KEY for the current channel. Remove key if nil.
3586 Prompt for one if called interactively."
3587 (interactive (list (read-from-minibuffer
3588 (format "Key for %s (RET to remove key): "
3589 (erc-default-target)))))
3590 (let ((tgt (erc-default-target)))
3591 (if (and key (>= (length key) 1))
3592 (erc-server-send (format "MODE %s +k %s" tgt key))
3593 (erc-server-send (format "MODE %s -k" tgt)))))
3595 (defun erc-quit-server (reason)
3596 "Disconnect from current server after prompting for REASON.
3597 `erc-quit-reason' works with this just like with `erc-cmd-QUIT'."
3598 (interactive (list (read-from-minibuffer
3599 (format "Reason for quitting %s: "
3600 (or erc-server-announced-name
3601 erc-session-server)))))
3602 (erc-cmd-QUIT reason))
3604 ;; Movement of point
3607 "Move `point' to the beginning of the current line.
3609 This places `point' just after the prompt, or at the beginning of the line."
3612 (when (get-text-property (point) 'erc-prompt)
3613 (goto-char erc-input-marker))
3616 (defun erc-kill-input ()
3617 "Kill current input line using `erc-bol' followed by `kill-line'."
3619 (when (and (erc-bol)
3620 (/= (point) (point-max))) ;; Prevent a (ding) and an error when
3621 ;; there's nothing to kill
3622 (if (boundp 'erc-input-ring-index)
3623 (setq erc-input-ring-index nil))
3626 (defun erc-complete-word ()
3627 "Complete the word before point.
3629 This function uses `erc-complete-functions'."
3631 (unless (run-hook-with-args-until-success 'erc-complete-functions)
3634 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3636 ;; IRC SERVER INPUT HANDLING
3638 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3640 ;;;; New Input parsing
3642 ; Stolen from ZenIRC. I just wanna test this code, so here is
3645 (defcustom erc-default-server-hook '(erc-debug-missing-hooks
3646 erc-default-server-handler)
3647 "*Default for server messages which aren't covered by `erc-server-hooks'."
3648 :group 'erc-server-hooks
3651 (defun erc-default-server-handler (proc parsed)
3652 "Default server handler.
3654 Displays PROC and PARSED appropriately using `erc-display-message'."
3655 (erc-display-message
3662 (setq res (append res (list x)))))
3667 (defvar erc-server-vectors
3668 '(["msgtype" "sender" "to" "arg1" "arg2" "arg3" "..."])
3669 "List of received server messages which ERC does not specifically handle.
3670 See `erc-debug-missing-hooks'.")
3671 ;(make-variable-buffer-local 'erc-server-vectors)
3673 (defun erc-debug-missing-hooks (proc parsed)
3674 "Add PARSED server message ERC does not yet handle to `erc-server-vectors'.
3675 These vectors can be helpful when adding new server message handlers to ERC.
3676 See `erc-default-server-hook'."
3677 (nconc erc-server-vectors (list parsed))
3680 (defun erc-query (target server)
3681 "Open a query buffer on TARGET, using SERVER.
3682 To change how this query window is displayed, use `let' to bind
3683 `erc-join-buffer' before calling this."
3685 (buffer-live-p server)
3686 (set-buffer server))
3687 (error "Couldn't switch to server buffer"))
3688 (let ((buf (erc-open erc-session-server
3691 erc-session-user-full-name
3696 erc-server-process)))
3698 (error "Couldn't open query window"))
3699 (erc-update-mode-line)
3702 (defcustom erc-auto-query nil
3703 "If non-nil, create a query buffer each time you receive a private message.
3705 If the buffer doesn't already exist it is created. This can be
3706 set to a symbol, to control how the new query window should
3707 appear. See the documentation for `erc-join-buffer' for
3710 :type '(choice (const nil)
3713 (const window-noselect)
3717 (defcustom erc-query-on-unjoined-chan-privmsg t
3718 "If non-nil create query buffer on receiving any PRIVMSG at all.
3719 This includes PRIVMSGs directed to channels. If you are using an IRC
3720 bouncer, such as dircproxy, to keep a log of channels when you are
3721 disconnected, you should set this option to t."
3725 (defcustom erc-format-query-as-channel-p t
3726 "If non-nil, format text from others in a query buffer like in a channel,
3727 otherwise format like a private message."
3731 (defcustom erc-minibuffer-notice nil
3732 "If non-nil, print ERC notices for the user in the minibuffer.
3733 Only happens when the session buffer isn't visible."
3737 (defcustom erc-minibuffer-ignored nil
3738 "If non-nil, print a message in the minibuffer if we ignored something."
3742 (defun erc-wash-quit-reason (reason nick login host)
3743 "Remove duplicate text from quit REASON.
3744 Specifically in relation to NICK (user@host) information. Returns REASON
3745 unmodified if nothing can be removed.
3746 E.g. \"Read error to Nick [user@some.host]: 110\" would be shortened to
3747 \"Read error: 110\". The same applies for \"Ping Timeout\"."
3748 (setq nick (regexp-quote nick)
3749 login (regexp-quote login)
3750 host (regexp-quote host))
3751 (or (when (string-match (concat "^\\(Read error\\) to "
3752 nick "\\[" host "\\]: "
3753 "\\(.+\\)$") reason)
3754 (concat (match-string 1 reason) ": " (match-string 2 reason)))
3755 (when (string-match (concat "^\\(Ping timeout\\) for "
3756 nick "\\[" host "\\]$") reason)
3757 (match-string 1 reason))
3760 (defun erc-nickname-in-use (nick reason)
3761 "If NICK is unavailable, tell the user the REASON.
3763 See also `erc-display-error-notice'."
3764 (if (or (not erc-try-new-nick-p)
3765 ;; how many default-nicks are left + one more try...
3766 (eq erc-nick-change-attempt-count
3767 (if (consp erc-nick)
3768 (+ (length erc-nick) 1)
3770 (erc-display-error-notice
3772 (format "Nickname %s is %s, try another." nick reason))
3773 (setq erc-nick-change-attempt-count (+ erc-nick-change-attempt-count 1))
3774 (let ((newnick (nth 1 erc-default-nicks))
3775 (nicklen (cdr (assoc "NICKLEN"
3776 (with-current-buffer (erc-server-buffer)
3777 erc-server-parameters)))))
3778 (setq erc-bad-nick t)
3779 ;; try to use a different nick
3780 (if erc-default-nicks
3781 (setq erc-default-nicks (cdr erc-default-nicks)))
3783 (setq newnick (concat (truncate-string-to-width
3785 (if (and erc-server-connected nicklen)
3786 (- (string-to-number nicklen)
3787 (length erc-nick-uniquifier))
3788 ;; rfc2812 max nick length = 9
3789 ;; we must assume this is the
3790 ;; server's setting if we haven't
3791 ;; established a connection yet
3792 (- 9 (length erc-nick-uniquifier))))
3793 erc-nick-uniquifier)))
3794 (erc-cmd-NICK newnick)
3795 (erc-display-error-notice
3797 (format "Nickname %s is %s, trying %s"
3798 nick reason newnick)))))
3802 (defgroup erc-server-hooks nil
3803 "Server event callbacks.
3804 Every server event - like numeric replies - has its own hook.
3805 Those hooks are all called using `run-hook-with-args-until-success'.
3806 They receive as first argument the process object from where the event
3808 and as second argument the event parsed as a vector."
3811 (defun erc-display-server-message (proc parsed)
3812 "Display the message sent by the server as a notice."
3813 (erc-display-message
3814 parsed 'notice 'active (erc-response.contents parsed)))
3816 (defun erc-auto-query (proc parsed)
3817 ;; FIXME: This needs more documentation, unless it's not a user function --
3818 ;; Lawrence 2004-01-08
3819 "Put this on `erc-server-PRIVMSG-functions'."
3820 (when erc-auto-query
3821 (let* ((nick (car (erc-parse-user (erc-response.sender parsed))))
3822 (target (car (erc-response.command-args parsed)))
3823 (msg (erc-response.contents parsed))
3824 (query (if (not erc-query-on-unjoined-chan-privmsg)
3826 (if (erc-current-nick-p target)
3829 (and (not (erc-ignored-user-p (erc-response.sender parsed)))
3830 (or erc-query-on-unjoined-chan-privmsg
3831 (string= target (erc-current-nick)))
3832 (not (erc-get-buffer query proc))
3833 (not (erc-is-message-ctcp-and-not-action-p msg))
3834 (let ((erc-join-buffer erc-auto-query))
3835 (erc-cmd-QUERY query))
3838 (defun erc-is-message-ctcp-p (message)
3839 "Check if MESSAGE is a CTCP message or not."
3840 (string-match "^\C-a\\([^\C-a]*\\)\C-a?$" message))
3842 (defun erc-is-message-ctcp-and-not-action-p (message)
3843 "Check if MESSAGE is a CTCP message or not."
3844 (and (erc-is-message-ctcp-p message)
3845 (not (string-match "^\C-a\\ACTION.*\C-a$" message))))
3847 (defun erc-format-privmessage (nick msg privp msgp)
3848 "Format a PRIVMSG in an insertible fashion."
3849 (let* ((mark-s (if msgp (if privp "*" "<") "-"))
3850 (mark-e (if msgp (if privp "*" ">") "-"))
3851 (str (format "%s%s%s %s" mark-s nick mark-e msg))
3852 (nick-face (if privp 'erc-nick-msg-face 'erc-nick-default-face))
3853 (msg-face (if privp 'erc-direct-msg-face 'erc-default-face)))
3854 ;; add text properties to text before the nick, the nick and after the nick
3855 (erc-put-text-property 0 (length mark-s) 'face msg-face str)
3856 (erc-put-text-property (length mark-s) (+ (length mark-s) (length nick))
3857 'face nick-face str)
3858 (erc-put-text-property (+ (length mark-s) (length nick)) (length str)
3862 (defcustom erc-format-nick-function 'erc-format-nick
3863 "*Function to format a nickname for message display."
3867 (defun erc-format-nick (&optional user channel-data)
3868 "Return the nickname of USER.
3869 See also `erc-format-nick-function'."
3870 (when user (erc-server-user-nickname user)))
3872 (defun erc-format-@nick (&optional user channel-data)
3873 "Format the nickname of USER showing if USER is an operator or has voice.
3874 Operators have \"@\" and users with voice have \"+\" as a prefix.
3875 Use CHANNEL-DATA to determine op and voice status.
3876 See also `erc-format-nick-function'."
3878 (let ((op (and channel-data (erc-channel-user-op channel-data) "@"))
3879 (voice (and channel-data (erc-channel-user-voice channel-data) "+")))
3880 (concat voice op (erc-server-user-nickname user)))))
3882 (defun erc-format-my-nick ()
3883 "Return the beginning of this user's message, correctly propertized."
3884 (if erc-show-my-nick
3887 (nick (erc-current-nick)))
3889 (erc-propertize open 'face 'erc-default-face)
3890 (erc-propertize nick 'face 'erc-my-nick-face)
3891 (erc-propertize close 'face 'erc-default-face)))
3892 (let ((prefix "> "))
3893 (erc-propertize prefix 'face 'erc-default-face))))
3895 (defun erc-echo-notice-in-default-buffer (s parsed buffer sender)
3896 "Echos a private notice in the default buffer, namely the
3897 target buffer specified by BUFFER, or there is no target buffer,
3898 the server buffer. This function is designed to be added to
3899 either `erc-echo-notice-hook' or `erc-echo-notice-always-hook',
3900 and always returns t."
3901 (erc-display-message parsed nil buffer s)
3904 (defun erc-echo-notice-in-target-buffer (s parsed buffer sender)
3905 "Echos a private notice in BUFFER, if BUFFER is non-nil. This
3906 function is designed to be added to either `erc-echo-notice-hook'
3907 or `erc-echo-notice-always-hook', and returns non-nil iff BUFFER
3910 (progn (erc-display-message parsed nil buffer s) t)
3913 (defun erc-echo-notice-in-minibuffer (s parsed buffer sender)
3914 "Echos a private notice in the minibuffer. This function is
3915 designed to be added to either `erc-echo-notice-hook' or
3916 `erc-echo-notice-always-hook', and always returns t."
3917 (message "%s" (concat "NOTICE: " s))
3920 (defun erc-echo-notice-in-server-buffer (s parsed buffer sender)
3921 "Echos a private notice in the server buffer. This function is
3922 designed to be added to either `erc-echo-notice-hook' or
3923 `erc-echo-notice-always-hook', and always returns t."
3924 (erc-display-message parsed nil nil s)
3927 (defun erc-echo-notice-in-active-non-server-buffer (s parsed buffer sender)
3928 "Echos a private notice in the active buffer if the active
3929 buffer is not the server buffer. This function is designed to be
3930 added to either `erc-echo-notice-hook' or
3931 `erc-echo-notice-always-hook', and returns non-nil iff the active
3932 buffer is not the server buffer."
3933 (if (not (eq (erc-server-buffer) (erc-active-buffer)))
3934 (progn (erc-display-message parsed nil 'active s) t)
3937 (defun erc-echo-notice-in-active-buffer (s parsed buffer sender)
3938 "Echos a private notice in the active buffer. This function is
3939 designed to be added to either `erc-echo-notice-hook' or
3940 `erc-echo-notice-always-hook', and always returns t."
3941 (erc-display-message parsed nil 'active s)
3944 (defun erc-echo-notice-in-user-buffers (s parsed buffer sender)
3945 "Echos a private notice in all of the buffers for which SENDER
3946 is a member. This function is designed to be added to either
3947 `erc-echo-notice-hook' or `erc-echo-notice-always-hook', and
3948 returns non-nil iff there is at least one buffer for which the
3951 See also: `erc-echo-notice-in-first-user-buffer',
3952 `erc-buffer-list-with-nick'."
3953 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
3955 (progn (erc-display-message parsed nil buffers s) t)
3958 (defun erc-echo-notice-in-user-and-target-buffers (s parsed buffer sender)
3959 "Echos a private notice in BUFFER and in all of the buffers for
3960 which SENDER is a member. This function is designed to be added
3961 to either `erc-echo-notice-hook' or
3962 `erc-echo-notice-always-hook', and returns non-nil iff there is
3963 at least one buffer for which the sender is a member or the
3966 See also: `erc-echo-notice-in-user-buffers',
3967 `erc-buffer-list-with-nick'."
3968 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
3969 (add-to-list 'buffers buffer)
3971 (progn (erc-display-message parsed nil buffers s) t)
3974 (defun erc-echo-notice-in-first-user-buffer (s parsed buffer sender)
3975 "Echos a private notice in one of the buffers for which SENDER
3976 is a member. This function is designed to be added to either
3977 `erc-echo-notice-hook' or `erc-echo-notice-always-hook', and
3978 returns non-nil iff there is at least one buffer for which the
3981 See also: `erc-echo-notice-in-user-buffers',
3982 `erc-buffer-list-with-nick'."
3983 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
3985 (progn (erc-display-message parsed nil (car buffers) s) t)
3988 ;;; Ban manipulation
3990 (defun erc-banlist-store (proc parsed)
3991 "Record ban entries for a channel."
3992 (multiple-value-bind (channel mask whoset)
3993 (cdr (erc-response.command-args parsed))
3994 ;; Determine to which buffer the message corresponds
3995 (let ((buffer (erc-get-buffer channel proc)))
3996 (with-current-buffer buffer
3997 (unless (member (cons whoset mask) erc-channel-banlist)
3998 (setq erc-channel-banlist (cons (cons whoset mask)
3999 erc-channel-banlist))))))
4002 (defun erc-banlist-finished (proc parsed)
4003 "Record that we have received the banlist."
4004 (let* ((channel (second (erc-response.command-args parsed)))
4005 (buffer (erc-get-buffer channel proc)))
4006 (with-current-buffer buffer
4007 (put 'erc-channel-banlist 'received-from-server t)))
4008 t) ; suppress the 'end of banlist' message
4010 (defun erc-banlist-update (proc parsed)
4011 "Check MODE commands for bans and update the banlist appropriately."
4012 ;; FIXME: Possibly incorrect. -- Lawrence 2004-05-11
4013 (let* ((tgt (first (erc-response.command-args parsed)))
4014 (mode (erc-response.contents parsed))
4015 (whoset (erc-response.sender parsed))
4016 (buffer (erc-get-buffer tgt proc)))
4018 (with-current-buffer buffer
4019 (cond ((not (get 'erc-channel-banlist 'received-from-server)) nil)
4020 ((string-match "^\\([+-]\\)b" mode)
4023 ((string-match "^-" mode)
4024 ;; Remove the unbanned masks from the ban list
4025 (setq erc-channel-banlist
4028 (member (upcase (cdr y))
4030 (cdr (split-string mode)))))
4031 erc-channel-banlist)))
4032 ((string-match "^+" mode)
4033 ;; Add the banned mask(s) to the ban list
4036 (unless (member (cons whoset mask) erc-channel-banlist)
4037 (setq erc-channel-banlist
4038 (cons (cons whoset mask) erc-channel-banlist))))
4039 (cdr (split-string mode))))))))))
4042 ;; used for the banlist cmds
4043 (defun erc-group-list (list n)
4044 "Group LIST into sublists of length N."
4045 (cond ((null list) nil)
4046 ((null (nthcdr n list)) (list list))
4047 (t (cons (erc-subseq list 0 n) (erc-group-list (nthcdr n list) n)))))
4052 (defun erc-handle-login ()
4053 "Handle the logging in process of connection."
4054 (unless erc-logged-in
4055 (setq erc-logged-in t)
4056 (message "Logging in as \'%s\'... done" (erc-current-nick))
4057 ;; execute a startup script
4058 (let ((f (erc-select-startup-file)))
4060 (erc-load-script f)))))
4062 (defun erc-connection-established (proc parsed)
4063 "Run just after connection.
4065 Set user modes and run `erc-after-connect' hook."
4066 (unless erc-server-connected ; only once per session
4067 (let ((server (or erc-server-announced-name (erc-response.sender parsed)))
4068 (nick (car (erc-response.command-args parsed ))))
4069 (setq erc-server-connected t)
4070 (erc-update-mode-line)
4071 (erc-set-initial-user-mode nick)
4072 (erc-server-setup-periodical-server-ping)
4073 (run-hook-with-args 'erc-after-connect server nick))))
4075 (defun erc-set-initial-user-mode (nick)
4076 "If `erc-user-mode' is non-nil for NICK, set the user modes."
4078 (let ((mode (if (functionp erc-user-mode)
4079 (funcall erc-user-mode)
4081 (when (stringp mode)
4082 (erc-log (format "changing mode for %s to %s" nick mode))
4083 (erc-server-send (format "MODE %s %s" nick mode))))))
4085 (defun erc-display-error-notice (parsed string)
4086 "Display STRING as an error notice.
4088 See also `erc-display-message'."
4089 (erc-display-message
4090 parsed '(notice error) 'active string))
4092 (defun erc-process-ctcp-query (proc parsed nick login host)
4093 ;; FIXME: This needs a proper docstring -- Lawrence 2004-01-08
4094 "Process a CTCP query."
4095 (let ((queries (delete "" (split-string (erc-response.contents parsed)
4097 (if (> (length queries) 4)
4098 (erc-display-message
4099 parsed (list 'notice 'error) proc 'ctcp-too-many)
4100 (if (= 0 (length queries))
4101 (erc-display-message
4102 parsed (list 'notice 'error) proc
4103 'ctcp-empty ?n nick)
4105 (let* ((type (upcase (car (split-string (car queries)))))
4106 (hook (intern-soft (concat "erc-ctcp-query-" type "-hook"))))
4107 (if (and hook (boundp hook))
4108 (if (string-equal type "ACTION")
4109 (run-hook-with-args-until-success
4110 hook proc parsed nick login host
4111 (car (erc-response.command-args parsed))
4114 (if (erc-current-nick-p
4115 (car (erc-response.command-args parsed)))
4116 (erc-display-message
4117 parsed 'error 'active 'ctcp-request
4118 ?n nick ?u login ?h host ?r (car queries))
4119 (erc-display-message
4120 parsed 'error 'active 'ctcp-request-to
4121 ?n nick ?u login ?h host ?r (car queries)
4122 ?t (car (erc-response.command-args parsed)))))
4123 (run-hook-with-args-until-success
4124 hook proc nick login host
4125 (car (erc-response.command-args parsed))
4127 (erc-display-message
4128 parsed (list 'notice 'error) proc
4130 (setq queries (cdr queries)))))))
4132 (defvar erc-ctcp-query-ACTION-hook '(erc-ctcp-query-ACTION))
4134 (defun erc-ctcp-query-ACTION (proc parsed nick login host to msg)
4135 "Respond to a CTCP ACTION query."
4136 (when (string-match "^ACTION\\s-\\(.*\\)\\s-*$" msg)
4137 (let ((s (match-string 1 msg))
4138 (buf (or (erc-get-buffer to proc)
4139 (erc-get-buffer nick proc)
4140 (process-buffer proc))))
4141 (erc-display-message
4143 'ACTION ?n nick ?u login ?h host ?a s))))
4145 (defvar erc-ctcp-query-CLIENTINFO-hook '(erc-ctcp-query-CLIENTINFO))
4147 (defun erc-ctcp-query-CLIENTINFO (proc nick login host to msg)
4148 "Respond to a CTCP CLIENTINFO query."
4149 (when (string-match "^CLIENTINFO\\(\\s-*\\|\\s-+.*\\)$" msg)
4150 (let ((s (erc-client-info (erc-trim-string (match-string 1 msg)))))
4151 (unless erc-disable-ctcp-replies
4152 (erc-send-ctcp-notice nick (format "CLIENTINFO %s" s)))))
4155 (defvar erc-ctcp-query-ECHO-hook '(erc-ctcp-query-ECHO))
4156 (defun erc-ctcp-query-ECHO (proc nick login host to msg)
4157 "Respond to a CTCP ECHO query."
4158 (when (string-match "^ECHO\\s-+\\(.*\\)\\s-*$" msg)
4159 (let ((s (match-string 1 msg)))
4160 (unless erc-disable-ctcp-replies
4161 (erc-send-ctcp-notice nick (format "ECHO %s" s)))))
4164 (defvar erc-ctcp-query-FINGER-hook '(erc-ctcp-query-FINGER))
4165 (defun erc-ctcp-query-FINGER (proc nick login host to msg)
4166 "Respond to a CTCP FINGER query."
4167 (unless erc-disable-ctcp-replies
4168 (let ((s (if erc-anonymous-login
4169 (format "FINGER I'm %s." (erc-current-nick))
4170 (format "FINGER %s (%s@%s)."
4174 (ns (erc-time-diff erc-server-last-sent-time (erc-current-time))))
4176 (setq s (concat s " Idle for " (erc-sec-to-time ns))))
4177 (erc-send-ctcp-notice nick s)))
4180 (defvar erc-ctcp-query-PING-hook '(erc-ctcp-query-PING))
4181 (defun erc-ctcp-query-PING (proc nick login host to msg)
4182 "Respond to a CTCP PING query."
4183 (when (string-match "^PING\\s-+\\(.*\\)" msg)
4184 (unless erc-disable-ctcp-replies
4185 (let ((arg (match-string 1 msg)))
4186 (erc-send-ctcp-notice nick (format "PING %s" arg)))))
4189 (defvar erc-ctcp-query-TIME-hook '(erc-ctcp-query-TIME))
4190 (defun erc-ctcp-query-TIME (proc nick login host to msg)
4191 "Respond to a CTCP TIME query."
4192 (unless erc-disable-ctcp-replies
4193 (erc-send-ctcp-notice nick (format "TIME %s" (current-time-string))))
4196 (defvar erc-ctcp-query-USERINFO-hook '(erc-ctcp-query-USERINFO))
4197 (defun erc-ctcp-query-USERINFO (proc nick login host to msg)
4198 "Respond to a CTCP USERINFO query."
4199 (unless erc-disable-ctcp-replies
4200 (erc-send-ctcp-notice nick (format "USERINFO %s" erc-user-information)))
4203 (defvar erc-ctcp-query-VERSION-hook '(erc-ctcp-query-VERSION))
4204 (defun erc-ctcp-query-VERSION (proc nick login host to msg)
4205 "Respond to a CTCP VERSION query."
4206 (unless erc-disable-ctcp-replies
4207 (erc-send-ctcp-notice
4209 "VERSION \C-bERC\C-b %s - an IRC client for emacs (\C-b%s\C-b)"
4211 erc-official-location)))
4214 (defun erc-process-ctcp-reply (proc parsed nick login host msg)
4215 "Process MSG as a CTCP reply."
4216 (let* ((type (car (split-string msg)))
4217 (hook (intern (concat "erc-ctcp-reply-" type "-hook"))))
4219 (run-hook-with-args-until-success
4220 hook proc nick login host
4221 (car (erc-response.command-args parsed)) msg)
4222 (erc-display-message
4223 parsed 'notice 'active
4224 'CTCP-UNKNOWN ?n nick ?u login ?h host ?m msg))))
4226 (defvar erc-ctcp-reply-ECHO-hook '(erc-ctcp-reply-ECHO))
4227 (defun erc-ctcp-reply-ECHO (proc nick login host to msg)
4228 "Handle a CTCP ECHO reply."
4229 (when (string-match "^ECHO\\s-+\\(.*\\)\\s-*$" msg)
4230 (let ((message (match-string 1 msg)))
4231 (erc-display-message
4232 nil '(notice action) 'active
4233 'CTCP-ECHO ?n nick ?m message)))
4236 (defvar erc-ctcp-reply-CLIENTINFO-hook '(erc-ctcp-reply-CLIENTINFO))
4237 (defun erc-ctcp-reply-CLIENTINFO (proc nick login host to msg)
4238 "Handle a CTCP CLIENTINFO reply."
4239 (when (string-match "^CLIENTINFO\\s-+\\(.*\\)\\s-*$" msg)
4240 (let ((message (match-string 1 msg)))
4241 (erc-display-message
4243 'CTCP-CLIENTINFO ?n nick ?m message)))
4246 (defvar erc-ctcp-reply-FINGER-hook '(erc-ctcp-reply-FINGER))
4247 (defun erc-ctcp-reply-FINGER (proc nick login host to msg)
4248 "Handle a CTCP FINGER reply."
4249 (when (string-match "^FINGER\\s-+\\(.*\\)\\s-*$" msg)
4250 (let ((message (match-string 1 msg)))
4251 (erc-display-message
4253 'CTCP-FINGER ?n nick ?m message)))
4256 (defvar erc-ctcp-reply-PING-hook '(erc-ctcp-reply-PING))
4257 (defun erc-ctcp-reply-PING (proc nick login host to msg)
4258 "Handle a CTCP PING reply."
4259 (if (not (string-match "^PING\\s-+\\([0-9.]+\\)" msg))
4261 (let ((time (match-string 1 msg)))
4263 (let ((delta (erc-time-diff (string-to-number time)
4264 (erc-current-time))))
4265 (erc-display-message
4268 ?t (erc-sec-to-time delta)))
4270 (erc-display-message
4272 'bad-ping-response ?n nick ?t time))))))
4274 (defvar erc-ctcp-reply-TIME-hook '(erc-ctcp-reply-TIME))
4275 (defun erc-ctcp-reply-TIME (proc nick login host to msg)
4276 "Handle a CTCP TIME reply."
4277 (when (string-match "^TIME\\s-+\\(.*\\)\\s-*$" msg)
4278 (let ((message (match-string 1 msg)))
4279 (erc-display-message
4281 'CTCP-TIME ?n nick ?m message)))
4284 (defvar erc-ctcp-reply-VERSION-hook '(erc-ctcp-reply-VERSION))
4285 (defun erc-ctcp-reply-VERSION (proc nick login host to msg)
4286 "Handle a CTCP VERSION reply."
4287 (when (string-match "^VERSION\\s-+\\(.*\\)\\s-*$" msg)
4288 (let ((message (match-string 1 msg)))
4289 (erc-display-message
4291 'CTCP-VERSION ?n nick ?m message)))
4294 (defun erc-process-away (proc away-p)
4295 ;; FIXME: This docstring is AWFUL -- Lawrence 2004-01-08
4296 "Process the user being away, or returning from an away break."
4297 (let ((sessionbuf (process-buffer proc)))
4299 (with-current-buffer sessionbuf
4300 (when erc-away-nickname
4301 (erc-log (format "erc-process-away: away-nick: %s, away-p: %s"
4302 erc-away-nickname away-p))
4303 (erc-cmd-NICK (if away-p
4308 (erc-with-all-buffers-of-server proc nil
4309 (setq erc-away (current-time))))
4311 (let ((away-time erc-away))
4312 ;; away must be set to NIL BEFORE sending anything to prevent
4313 ;; an infinite recursion
4314 (erc-with-all-buffers-of-server proc nil
4315 (setq erc-away nil))
4317 (set-buffer (erc-active-buffer))
4318 (when erc-public-away-p
4320 (erc-default-target)
4322 (format "is back (gone for %s)"
4325 (erc-emacs-time-to-erc-time away-time)
4326 (erc-current-time))))
4328 (erc-update-mode-line)))
4330 ;;;; List of channel members handling
4332 (defun erc-channel-begin-receiving-names ()
4335 Used when a channel names list is about to be received. Should
4336 be called with the current buffer set to the channel buffer.
4338 See also `erc-channel-end-receiving-names'."
4339 (setq erc-channel-new-member-names (make-hash-table :test 'equal)))
4341 (defun erc-channel-end-receiving-names ()
4344 Used to fix `erc-channel-users' after a channel names list has been
4345 received. Should be called with the current buffer set to the
4348 See also `erc-channel-begin-receiving-names'."
4349 (maphash (lambda (nick user)
4350 (if (null (gethash nick erc-channel-new-member-names))
4351 (erc-remove-channel-user nick)))
4353 (setq erc-channel-new-member-names nil))
4355 (defun erc-channel-receive-names (names-string)
4356 "This function is for internal use only.
4358 Update `erc-channel-users' according to NAMES-STRING.
4359 NAMES-STRING is a string listing some of the names on the
4361 (let (names name op voice)
4362 ;; We need to delete "" because in XEmacs, (split-string "a ")
4363 ;; returns ("a" "").
4364 (setq names (delete "" (split-string names-string)))
4365 (let ((erc-channel-members-changed-hook nil))
4366 (dolist (item names)
4367 (cond ((string-match "^@\\(.*\\)$" item)
4368 (setq name (match-string 1 item)
4371 ((string-match "^+\\(.*\\)$" item)
4372 (setq name (match-string 1 item)
4378 (puthash (erc-downcase name) t
4379 erc-channel-new-member-names)
4380 (erc-update-current-channel-member
4381 name name t op voice)))
4382 (run-hooks 'erc-channel-members-changed-hook)))
4384 (defcustom erc-channel-members-changed-hook nil
4385 "*This hook is called every time the variable `channel-members' changes.
4386 The buffer where the change happened is current while this hook is called."
4390 (defun erc-update-user-nick (nick &optional new-nick
4391 host login full-name info)
4392 "Updates the stored user information for the user with nickname
4395 See also: `erc-update-user'."
4396 (erc-update-user (erc-get-server-user nick) new-nick
4397 host login full-name info))
4399 (defun erc-update-user (user &optional new-nick
4400 host login full-name info)
4401 "Update user info for USER. USER must be an erc-server-user
4402 struct. Any of NEW-NICK, HOST, LOGIN, FULL-NAME, INFO which are
4403 non-nil and not equal to the existing values for USER are used to
4404 replace the stored values in USER.
4406 If, and only if, a change is made,
4407 `erc-channel-members-changed-hook' is run for each channel for
4408 which USER is a member, and t is returned."
4412 (not (equal (erc-server-user-nickname user)
4415 (erc-change-user-nickname user new-nick))
4417 (not (equal (erc-server-user-host user) host)))
4419 (setf (erc-server-user-host user) host))
4421 (not (equal (erc-server-user-login user) login)))
4423 (setf (erc-server-user-login user) login))
4424 (when (and full-name
4425 (not (equal (erc-server-user-full-name user)
4428 (setf (erc-server-user-full-name user) full-name))
4430 (not (equal (erc-server-user-info user) info)))
4432 (setf (erc-server-user-info user) info))
4434 (dolist (buf (erc-server-user-buffers user))
4435 (if (buffer-live-p buf)
4436 (with-current-buffer buf
4437 (run-hooks 'erc-channel-members-changed-hook))))))
4440 (defun erc-update-current-channel-member
4441 (nick new-nick &optional add op voice host login full-name info
4442 update-message-time)
4443 "Updates the stored user information for the user with nickname
4444 NICK. `erc-update-user' is called to handle changes to nickname,
4445 HOST, LOGIN, FULL-NAME, and INFO. If OP or VOICE are non-nil,
4446 they must be equal to either `on' or `off', in which case the
4447 operator or voice status of the user in the current channel is
4448 changed accordingly. If UPDATE-MESSAGE-TIME is non-nil, the
4449 last-message-time of the user in the current channel is set
4452 If ADD is non-nil, the user will be added with the specified
4453 information if it is not already present in the user or channel
4456 If, and only if, changes are made, or the user is added,
4457 `erc-channel-members-updated-hook' is run, and t is returned.
4459 See also: `erc-update-user' and `erc-update-channel-member'."
4460 (let* (changed user-changed
4461 (channel-data (erc-get-channel-user nick))
4462 (cuser (if channel-data (cdr channel-data)))
4463 (user (if channel-data (car channel-data)
4464 (erc-get-server-user nick))))
4467 (erc-log (format "update-member: user = %S, cuser = %S" user cuser))
4469 (not (eq (erc-channel-user-op cuser) op)))
4471 (setf (erc-channel-user-op cuser)
4472 (cond ((eq op 'on) t)
4476 (not (eq (erc-channel-user-voice cuser) voice)))
4478 (setf (erc-channel-user-voice cuser)
4479 (cond ((eq voice 'on) t)
4480 ((eq voice 'off) nil)
4482 (when update-message-time
4483 (setf (erc-channel-user-last-message-time cuser) (current-time)))
4485 (erc-update-user user new-nick
4486 host login full-name info)))
4490 (setq user (make-erc-server-user
4493 :full-name full-name
4496 :buffers (list (current-buffer))))
4497 (erc-add-server-user nick user))
4498 (setf (erc-server-user-buffers user)
4499 (cons (current-buffer)
4500 (erc-server-user-buffers user))))
4501 (setq cuser (make-erc-channel-user
4502 :op (cond ((eq op 'on) t)
4505 :voice (cond ((eq voice 'on) t)
4506 ((eq voice 'off) nil)
4509 (if update-message-time (current-time))))
4510 (puthash (erc-downcase nick) (cons user cuser)
4513 (when (and changed (null user-changed))
4514 (run-hooks 'erc-channel-members-changed-hook))
4515 (or changed user-changed add)))
4517 (defun erc-update-channel-member (channel nick new-nick
4518 &optional add op voice host login
4519 full-name info update-message-time)
4520 "Updates user and channel information for the user with
4521 nickname NICK in channel CHANNEL.
4523 See also: `erc-update-current-channel-member'."
4526 (erc-update-current-channel-member nick new-nick add op voice host
4527 login full-name info
4528 update-message-time)))
4530 (defun erc-remove-current-channel-member (nick)
4531 "Remove NICK from current channel membership list.
4532 Runs `erc-channel-members-changed-hook'."
4533 (let ((channel-data (erc-get-channel-user nick)))
4535 (erc-remove-channel-user nick)
4536 (run-hooks 'erc-channel-members-changed-hook))))
4538 (defun erc-remove-channel-member (channel nick)
4539 "Remove NICK from CHANNEL's membership list.
4541 See also `erc-remove-current-channel-member'."
4544 (erc-remove-current-channel-member nick)))
4546 (defun erc-update-channel-topic (channel topic &optional modify)
4547 "Find a buffer for CHANNEL and set the TOPIC for it.
4549 If optional MODIFY is 'append or 'prepend, then append or prepend the
4550 TOPIC string to the current topic."
4551 (erc-with-buffer (channel)
4552 (cond ((eq modify 'append)
4553 (setq erc-channel-topic (concat erc-channel-topic topic)))
4554 ((eq modify 'prepend)
4555 (setq erc-channel-topic (concat topic erc-channel-topic)))
4556 (t (setq erc-channel-topic topic)))
4557 (erc-update-mode-line-buffer (current-buffer))))
4559 (defun erc-set-modes (tgt mode-string)
4560 "Set the modes for the TGT provided as MODE-STRING."
4561 (let* ((modes (erc-parse-modes mode-string))
4562 (add-modes (nth 0 modes))
4563 (remove-modes (nth 1 modes))
4564 ;; list of triples: (mode-char 'on/'off argument)
4565 (arg-modes (nth 2 modes)))
4566 (cond ((erc-channel-p tgt); channel modes
4567 (let ((buf (and erc-server-process
4568 (erc-get-buffer tgt erc-server-process))))
4570 (with-current-buffer buf
4571 (setq erc-channel-modes add-modes)
4572 (setq erc-channel-user-limit nil)
4573 (setq erc-channel-key nil)
4575 (let ((mode (nth 0 (car arg-modes)))
4576 (onoff (nth 1 (car arg-modes)))
4577 (arg (nth 2 (car arg-modes))))
4578 (cond ((string-match "^[Ll]" mode)
4579 (erc-update-channel-limit tgt onoff arg))
4580 ((string-match "^[Kk]" mode)
4581 (erc-update-channel-key tgt onoff arg))
4583 (setq arg-modes (cdr arg-modes)))
4584 (erc-update-mode-line-buffer buf)))))
4585 ;; we do not keep our nick's modes yet
4586 ;;(t (setq erc-user-modes add-modes))
4590 (defun erc-sort-strings (list-of-strings)
4591 "Sort LIST-OF-STRINGS in lexicographic order.
4594 (sort (copy-sequence list-of-strings) 'string<))
4596 (defun erc-parse-modes (mode-string)
4597 "Parse MODE-STRING into a list.
4599 Returns a list of three elements:
4601 (ADD-MODES REMOVE-MODES ARG-MODES).
4603 The add-modes and remove-modes are lists of single-character strings
4604 for modes without parameters to add and remove respectively. The
4605 arg-modes is a list of triples of the form:
4607 (MODE-CHAR ON/OFF ARGUMENT)."
4608 (if (string-match "^\\s-*\\(\\S-+\\)\\(\\s-.*$\\|$\\)" mode-string)
4609 (let ((chars (mapcar 'char-to-string (match-string 1 mode-string)))
4610 ;; arguments in channel modes
4611 (args-str (match-string 2 mode-string))
4615 (arg-modes nil); list of triples: (mode-char 'on/'off argument)
4617 ;; make the argument list
4618 (while (string-match "^\\s-*\\(\\S-+\\)\\(\\s-+.*$\\|$\\)" args-str)
4619 (setq args (cons (match-string 1 args-str) args))
4620 (setq args-str (match-string 2 args-str)))
4621 (setq args (nreverse args))
4622 ;; collect what modes changed, and match them with arguments
4624 (cond ((string= (car chars) "+") (setq add-p t))
4625 ((string= (car chars) "-") (setq add-p nil))
4626 ((string-match "^[ovbOVB]" (car chars))
4627 (setq arg-modes (cons (list (car chars)
4629 (if args (car args) nil))
4631 (if args (setq args (cdr args))))
4632 ((string-match "^[LlKk]" (car chars))
4633 (setq arg-modes (cons (list (car chars)
4635 (if (and add-p args)
4638 (if (and add-p args) (setq args (cdr args))))
4639 (add-p (setq add-modes (cons (car chars) add-modes)))
4640 (t (setq remove-modes (cons (car chars) remove-modes))))
4641 (setq chars (cdr chars)))
4642 (setq add-modes (nreverse add-modes))
4643 (setq remove-modes (nreverse remove-modes))
4644 (setq arg-modes (nreverse arg-modes))
4645 (list add-modes remove-modes arg-modes))
4648 (defun erc-update-modes (tgt mode-string &optional nick host login)
4649 "Update the mode information for TGT, provided as MODE-STRING.
4650 Optional arguments: NICK, HOST and LOGIN - the attributes of the
4651 person who changed the modes."
4652 (let* ((modes (erc-parse-modes mode-string))
4653 (add-modes (nth 0 modes))
4654 (remove-modes (nth 1 modes))
4655 ;; list of triples: (mode-char 'on/'off argument)
4656 (arg-modes (nth 2 modes)))
4657 ;; now parse the modes changes and do the updates
4658 (cond ((erc-channel-p tgt); channel modes
4659 (let ((buf (and erc-server-process
4660 (erc-get-buffer tgt erc-server-process))))
4662 ;; FIXME! This used to have an original buffer
4663 ;; variable, but it never switched back to the original
4664 ;; buffer. Is this wanted behavior?
4666 (if (not (boundp 'erc-channel-modes))
4667 (setq erc-channel-modes nil))
4669 (setq erc-channel-modes (delete (car remove-modes)
4671 remove-modes (cdr remove-modes)))
4673 (setq erc-channel-modes (cons (car add-modes)
4675 add-modes (cdr add-modes)))
4676 (setq erc-channel-modes (erc-sort-strings erc-channel-modes))
4678 (let ((mode (nth 0 (car arg-modes)))
4679 (onoff (nth 1 (car arg-modes)))
4680 (arg (nth 2 (car arg-modes))))
4681 (cond ((string-match "^[oO]" mode)
4682 (erc-update-channel-member tgt arg arg nil onoff))
4683 ((string-match "^[Vv]" mode)
4684 (erc-update-channel-member tgt arg arg nil nil
4686 ((string-match "^[Ll]" mode)
4687 (erc-update-channel-limit tgt onoff arg))
4688 ((string-match "^[Kk]" mode)
4689 (erc-update-channel-key tgt onoff arg))
4690 (t nil)); only ops are tracked now
4691 (setq arg-modes (cdr arg-modes))))
4692 (erc-update-mode-line buf))))
4693 ;; nick modes - ignored at this point
4696 (defun erc-update-channel-limit (channel onoff n)
4697 ;; FIXME: what does ONOFF actually do? -- Lawrence 2004-01-08
4698 "Update CHANNEL's user limit to N."
4699 (if (or (not (eq onoff 'on))
4700 (and (stringp n) (string-match "^[0-9]+$" n)))
4703 (cond ((eq onoff 'on) (setq erc-channel-user-limit (string-to-number n)))
4704 (t (setq erc-channel-user-limit nil))))))
4706 (defun erc-update-channel-key (channel onoff key)
4707 "Update CHANNEL's key to KEY if ONOFF is 'on or to nil if it's 'off."
4710 (cond ((eq onoff 'on) (setq erc-channel-key key))
4711 (t (setq erc-channel-key nil)))))
4713 (defun erc-handle-user-status-change (type nlh &optional l)
4714 "Handle changes in any user's status.
4716 So far, only nick change is handled.
4718 Generally, the TYPE argument is a symbol describing the change type, NLH is
4719 a list containing the original nickname, login name and hostname for the user,
4720 and L is a list containing additional TYPE-specific arguments.
4722 So far the following TYPE/L pairs are supported:
4726 nickname change 'nick (NEW-NICK)"
4727 (erc-log (format "user-change: type: %S nlh: %S l: %S" type nlh l))
4735 (defun erc-highlight-notice (s)
4736 "Highlight notice message S and return it.
4737 See also variable `erc-notice-highlight-type'."
4739 ((eq erc-notice-highlight-type 'prefix)
4740 (erc-put-text-property 0 (length erc-notice-prefix)
4741 'face 'erc-notice-face s)
4743 ((eq erc-notice-highlight-type 'all)
4744 (erc-put-text-property 0 (length s) 'face 'erc-notice-face s)
4748 (defun erc-make-notice (message)
4749 "Notify the user of MESSAGE."
4750 (when erc-minibuffer-notice
4751 (message "%s" message))
4752 (erc-highlight-notice (concat erc-notice-prefix message)))
4754 (defun erc-highlight-error (s)
4755 "Highlight error message S and return it."
4756 (erc-put-text-property 0 (length s) 'face 'erc-error-face s)
4759 (defun erc-put-text-property (start end property value &optional object)
4760 "Set text-property for an object (usually a string).
4761 START and END define the characters covered.
4762 PROPERTY is the text-property set, usually the symbol `face'.
4763 VALUE is the value for the text-property, usually a face symbol such as
4764 the face `bold' or `erc-pal-face'.
4765 OBJECT is a string which will be modified and returned.
4766 OBJECT is modified without being copied first.
4768 You can redefine or `defadvice' this function in order to add
4769 EmacsSpeak support."
4770 (put-text-property start end property value object))
4772 (defun erc-list (thing)
4773 "Return THING if THING is a list, or a list with THING as its element."
4778 (defun erc-parse-user (string)
4779 "Parse STRING as a user specification (nick!login@host).
4781 Return a list of the three separate tokens."
4783 ((string-match "^\\([^!\n]*\\)!\\([^@\n]*\\)@\\(.*\\)$" string)
4784 (list (match-string 1 string)
4785 (match-string 2 string)
4786 (match-string 3 string)))
4787 ;; Some bogus bouncers send Nick!(null), try to live with that.
4788 ((string-match "^\\([^!\n]*\\)!\\(.*\\)$" string)
4789 (list (match-string 1 string)
4791 (match-string 2 string)))
4793 (list string "" ""))))
4795 (defun erc-extract-nick (string)
4796 "Return the nick corresponding to a user specification STRING.
4798 See also `erc-parse-user'."
4799 (car (erc-parse-user string)))
4801 (defun erc-put-text-properties (start end properties
4802 &optional object value-list)
4803 "Set text-properties for OBJECT.
4805 START and END describe positions in OBJECT.
4806 If VALUE-LIST is nil, set each property in PROPERTIES to t, else set
4807 each property to the corresponding value in VALUE-LIST."
4809 (setq value-list (mapcar (lambda (x)
4812 (mapcar* (lambda (prop value)
4813 (erc-put-text-property start end prop value object))
4814 properties value-list))
4816 ;;; Input area handling:
4818 (defun erc-beg-of-input-line ()
4819 "Return the value of `point' at the beginning of the input line.
4821 Specifically, return the position of `erc-insert-marker'."
4822 (or (and (boundp 'erc-insert-marker)
4823 (markerp erc-insert-marker))
4824 (error "erc-insert-marker has no value, please report a bug"))
4825 (marker-position erc-insert-marker))
4827 (defun erc-end-of-input-line ()
4828 "Return the value of `point' at the end of the input line."
4831 (defun erc-send-current-line ()
4832 "Parse current line and send it to IRC."
4837 ((< (point) (erc-beg-of-input-line))
4838 (message "Point is not in the input area")
4840 ((not (erc-server-buffer-live-p))
4841 (message "ERC: No process running")
4844 (erc-set-active-buffer (current-buffer))
4845 (let ((inhibit-read-only t)
4846 (str (erc-user-input))
4847 (old-buf (current-buffer)))
4849 ;; Kill the input and the prompt
4850 (delete-region (erc-beg-of-input-line)
4851 (erc-end-of-input-line))
4854 (erc-send-input str)
4855 ;; Fix the buffer if the command didn't kill it
4856 (when (buffer-live-p old-buf)
4857 (with-current-buffer old-buf
4860 (goto-char (point-max))
4861 (set-marker (process-mark erc-server-process) (point))
4862 (set-marker erc-insert-marker (point))
4863 (let ((buffer-modified (buffer-modified-p)))
4864 (erc-display-prompt)
4865 (set-buffer-modified-p buffer-modified))))))
4867 ;; Only when last hook has been run...
4868 (run-hook-with-args 'erc-send-completed-hook str))))))
4870 (defun erc-user-input ()
4871 "Return the input of the user in the current buffer."
4874 (erc-end-of-input-line)))
4876 (defun erc-send-input (input)
4877 "Treat INPUT as typed in by the user. It is assumed that the input
4878 and the prompt is already deleted.
4879 This returns non-nil only iff we actually send anything."
4880 ;; Handle different kinds of inputs
4882 ;; Ignore empty input
4883 ((if erc-send-whitespace-lines
4885 (string-match "\\`[ \t\r\f\n]*\\'" input))
4886 (when erc-warn-about-blank-lines
4887 (message "Blank line - ignoring...")
4892 (erc-insert-this t))
4893 (setq erc-send-this t)
4894 (run-hook-with-args 'erc-send-pre-hook input)
4896 (if (or (string-match "\n" str)
4897 (not (char-equal (aref str 0) ?/)))
4902 ;; Insert what has to be inserted for this.
4903 (erc-display-msg line)
4904 (erc-process-input-line (concat line "\n")
4905 (null erc-flood-protect) t))
4906 (or (and erc-flood-protect (erc-split-line line))
4908 (split-string str "\n"))
4909 ;; Insert the prompt along with the command.
4910 (erc-display-command str)
4911 (erc-process-input-line (concat str "\n") t nil))
4914 (defun erc-display-command (line)
4915 (when erc-insert-this
4916 (let ((insert-position (point)))
4917 (unless erc-hide-prompt
4918 (erc-display-prompt nil nil (erc-command-indicator)
4919 (and (erc-command-indicator)
4920 'erc-command-indicator-face)))
4921 (let ((beg (point)))
4923 (erc-put-text-property beg (point)
4924 'face 'erc-command-indicator-face)
4926 (set-marker (process-mark erc-server-process) (point))
4927 (set-marker erc-insert-marker (point))
4930 (narrow-to-region insert-position (point))
4931 (run-hooks 'erc-send-modify-hook)
4932 (run-hooks 'erc-send-post-hook))))))
4934 (defun erc-display-msg (line)
4935 "Display LINE as a message of the user to the current target at the
4937 (when erc-insert-this
4938 (let ((insert-position (point)))
4939 (insert (erc-format-my-nick))
4940 (let ((beg (point)))
4942 (erc-put-text-property beg (point)
4943 'face 'erc-input-face))
4945 (set-marker (process-mark erc-server-process) (point))
4946 (set-marker erc-insert-marker (point))
4949 (narrow-to-region insert-position (point))
4950 (run-hooks 'erc-send-modify-hook)
4951 (run-hooks 'erc-send-post-hook))))))
4953 (defun erc-command-symbol (command)
4954 "Return the ERC command symbol for COMMAND if it exists and is bound."
4955 (let ((cmd (intern-soft (format "erc-cmd-%s" (upcase command)))))
4956 (when (fboundp cmd) cmd)))
4958 (defun erc-extract-command-from-line (line)
4959 "Extract command and args from the input LINE.
4960 If no command was given, return nil. If command matches, return a
4961 list of the form: (command args) where both elements are strings."
4962 (when (string-match "^/\\([A-Za-z]+\\)\\(\\s-+.*\\|\\s-*\\)$" line)
4963 (let* ((cmd (erc-command-symbol (match-string 1 line)))
4964 ;; note: return is nil, we apply this simply for side effects
4965 (canon-defun (while (and cmd (symbolp (symbol-function cmd)))
4966 (setq cmd (symbol-function cmd))))
4967 (cmd-fun (or cmd #'erc-cmd-default))
4969 (if (get cmd-fun 'do-not-parse-args)
4970 (format "%s" (match-string 2 line))
4971 (delete "" (split-string (erc-trim-string
4972 (match-string 2 line)) " ")))
4974 (list cmd-fun arg))))
4976 (defun erc-split-multiline-safe (string)
4977 "Split STRING, containing multiple lines and return them in a list.
4978 Do it only for STRING as the complete input, do not carry unfinished
4979 strings over to the next call."
4984 (let ((i (string-match "\r?\n" string i0))
4985 (s (substring string i0)))
4986 (cond (i (setq l (cons (substring string i0 i) l))
4987 (setq i0 (match-end 0)))
4989 (setq l (cons s l))(setq doit nil))
4990 (t (setq doit nil)))))
4995 (defun erc-set-current-nick (nick)
4996 "Set the current nickname to NICK."
4997 (with-current-buffer (or (erc-server-buffer)
4999 (setq erc-server-current-nick nick)))
5001 (defun erc-current-nick ()
5002 "Return the current nickname."
5003 (with-current-buffer (if (buffer-live-p (erc-server-buffer))
5006 erc-server-current-nick))
5008 (defun erc-current-nick-p (nick)
5009 "Return non-nil if NICK is the current nickname."
5010 (erc-nick-equal-p nick (erc-current-nick)))
5012 (defun erc-nick-equal-p (nick1 nick2)
5013 "Return non-nil if NICK1 and NICK2 are the same.
5015 This matches strings according to the IRC protocol's case convention.
5017 See also `erc-downcase'."
5018 (string= (erc-downcase nick1)
5019 (erc-downcase nick2)))
5021 ;; default target handling
5023 (defun erc-default-target ()
5024 "Return the current default target (as a character string) or nil if none."
5025 (let ((tgt (car erc-default-recipients)))
5028 ((listp tgt) (cdr tgt))
5031 (defun erc-add-default-channel (channel)
5032 "Add CHANNEL to the default channel list."
5034 (let ((d1 (car erc-default-recipients))
5035 (d2 (cdr erc-default-recipients))
5036 (chl (downcase channel)))
5037 (setq erc-default-recipients
5038 (cons chl erc-default-recipients))))
5040 (defun erc-delete-default-channel (channel &optional buffer)
5041 "Delete CHANNEL from the default channel list."
5042 (let ((ob (current-buffer)))
5043 (with-current-buffer (if (and buffer
5047 (setq erc-default-recipients (delete (downcase channel)
5048 erc-default-recipients)))))
5050 (defun erc-add-query (nickname)
5051 "Add QUERY'd NICKNAME to the default channel list.
5053 The previous default target of QUERY type gets removed."
5054 (let ((d1 (car erc-default-recipients))
5055 (d2 (cdr erc-default-recipients))
5056 (qt (cons 'QUERY (downcase nickname))))
5058 (eq (car d1) 'QUERY))
5059 (setq erc-default-recipients (cons qt d2))
5060 (setq erc-default-recipients (cons qt erc-default-recipients)))))
5062 (defun erc-delete-query ()
5063 "Delete the topmost target if it is a QUERY."
5065 (let ((d1 (car erc-default-recipients))
5066 (d2 (cdr erc-default-recipients)))
5068 (eq (car d1) 'QUERY))
5069 (setq erc-default-recipients d2)
5070 (error "Current target is not a QUERY"))))
5072 (defun erc-ignored-user-p (spec)
5073 "Return non-nil if SPEC matches something in `erc-ignore-list'.
5075 Takes a full SPEC of a user in the form \"nick!login@host\", and
5076 matches against all the regexp's in `erc-ignore-list'. If any
5077 match, returns that regexp."
5079 (dolist (ignored (with-current-buffer (erc-server-buffer) erc-ignore-list))
5080 (if (string-match ignored spec)
5081 (throw 'found ignored)))))
5083 (defun erc-ignored-reply-p (msg tgt proc)
5084 ;; FIXME: this docstring needs fixing -- Lawrence 2004-01-08
5085 "Return non-nil if MSG matches something in `erc-ignore-reply-list'.
5087 Takes a message MSG to a channel and returns non-nil if the addressed
5088 user matches any regexp in `erc-ignore-reply-list'."
5089 (let ((target-nick (erc-message-target msg)))
5090 (if (not target-nick)
5092 (erc-with-buffer (tgt proc)
5093 (let ((user (erc-get-server-user target-nick)))
5095 (erc-list-match erc-ignore-reply-list
5096 (erc-user-spec user))))))))
5098 (defun erc-message-target (msg)
5099 "Return the addressed target in MSG.
5101 The addressed target is the string before the first colon in MSG."
5102 (if (string-match "^\\([^: \n]*\\):" msg)
5103 (match-string 1 msg)
5106 (defun erc-user-spec (user)
5107 "Create a nick!user@host spec from a user struct."
5108 (let ((nick (erc-server-user-nickname user))
5109 (host (erc-server-user-host user))
5110 (login (erc-server-user-login user)))
5123 (defun erc-list-match (lst str)
5124 "Return non-nil if any regexp in LST matches STR."
5125 (memq nil (mapcar (lambda (regexp)
5126 (not (string-match regexp str)))
5131 (defun erc-toggle-ctcp-autoresponse (&optional arg)
5132 "Toggle automatic CTCP replies (like VERSION and PING).
5134 If ARG is positive, turns CTCP replies on.
5136 If ARG is non-nil and not positive, turns CTCP replies off."
5138 (cond ((and (numberp arg) (> arg 0))
5139 (setq erc-disable-ctcp-replies t))
5140 (arg (setq erc-disable-ctcp-replies nil))
5141 (t (setq erc-disable-ctcp-replies (not erc-disable-ctcp-replies))))
5142 (message "ERC CTCP replies are %s" (if erc-disable-ctcp-replies "OFF" "ON")))
5144 (defun erc-toggle-flood-control (&optional arg)
5145 "Toggle use of flood control on sent messages.
5147 If ARG is positive, use flood control.
5148 If ARG is non-nil and not positive, do not use flood control.
5150 See `erc-server-flood-margin' for an explanation of the available
5151 flood control parameters."
5153 (cond ((and (numberp arg) (> arg 0))
5154 (setq erc-flood-protect t))
5155 (arg (setq erc-flood-protect nil))
5156 (t (setq erc-flood-protect (not erc-flood-protect))))
5157 (message "ERC flood control is %s"
5158 (cond (erc-flood-protect "ON")
5161 ;; Some useful channel and nick commands for fast key bindings
5163 (defun erc-invite-only-mode (&optional arg)
5164 "Turn on the invite only mode (+i) for the current channel.
5166 If ARG is non-nil, turn this mode off (-i).
5168 This command is sent even if excess flood is detected."
5170 (erc-set-active-buffer (current-buffer))
5171 (let ((tgt (erc-default-target))
5173 (cond ((or (not tgt) (not (erc-channel-p tgt)))
5174 (erc-display-message nil 'error (current-buffer) 'no-target))
5175 (arg (erc-load-irc-script-lines (list (concat "/mode " tgt " -i"))
5177 (t (erc-load-irc-script-lines (list (concat "/mode " tgt " +i"))
5180 (defun erc-get-channel-mode-from-keypress (key)
5181 "Read a key sequence and call the corresponding channel mode function.
5182 After doing C-c C-o, type in a channel mode letter.
5185 RET lets you type more than one mode at a time.
5186 If \"l\" is pressed, `erc-set-channel-limit' gets called.
5187 If \"k\" is pressed, `erc-set-channel-key' gets called.
5188 Anything else will be sent to `erc-toggle-channel-mode'."
5189 (interactive "kChannel mode (RET to set more than one): ")
5190 (when (featurep 'xemacs)
5191 (setq key (char-to-string (event-to-character (aref key 0)))))
5192 (cond ((equal key "\C-g")
5195 (erc-insert-mode-command))
5197 (call-interactively 'erc-set-channel-limit))
5199 (call-interactively 'erc-set-channel-key))
5200 (t (erc-toggle-channel-mode key))))
5202 (defun erc-toggle-channel-mode (mode &optional channel)
5203 "Toggle channel MODE.
5205 If CHANNEL is non-nil, toggle MODE for that channel, otherwise use
5206 `erc-default-target'."
5208 (erc-set-active-buffer (current-buffer))
5209 (let ((tgt (or channel (erc-default-target)))
5211 (cond ((or (null tgt) (null (erc-channel-p tgt)))
5212 (erc-display-message nil 'error 'active 'no-target))
5213 ((member mode erc-channel-modes)
5214 (erc-log (format "%s: Toggle mode %s OFF" tgt mode))
5215 (message "Toggle channel mode %s OFF" mode)
5216 (erc-server-send (format "MODE %s -%s" tgt mode)))
5217 (t (erc-log (format "%s: Toggle channel mode %s ON" tgt mode))
5218 (message "Toggle channel mode %s ON" mode)
5219 (erc-server-send (format "MODE %s +%s" tgt mode))))))
5221 (defun erc-insert-mode-command ()
5222 "Insert the line \"/mode <current target> \" at `point'."
5224 (let ((tgt (erc-default-target)))
5225 (if tgt (insert (concat "/mode " tgt " "))
5226 (erc-display-message nil 'error (current-buffer) 'no-target))))
5228 (defun erc-channel-names ()
5229 "Run \"/names #channel\" in the current channel."
5231 (erc-set-active-buffer (current-buffer))
5232 (let ((tgt (erc-default-target)))
5233 (if tgt (erc-load-irc-script-lines (list (concat "/names " tgt)))
5234 (erc-display-message nil 'error (current-buffer) 'no-target))))
5236 (defun erc-remove-text-properties-region (start end &optional object)
5237 "Clears the region (START,END) in OBJECT from all colors, etc."
5240 (let ((inhibit-read-only t))
5241 (set-text-properties start end nil object))))
5243 ;; script execution and startup
5245 (defun erc-find-file (file &optional path)
5246 "Search for a FILE in the filesystem.
5247 First the `default-directory' is searched for FILE, then any directories
5248 specified in the list PATH.
5250 If FILE is found, return the path to it."
5251 (let ((filepath file))
5252 (if (file-readable-p filepath) filepath
5255 (progn (setq filepath (expand-file-name file (car path)))
5256 (not (file-readable-p filepath))))
5257 (setq path (cdr path)))
5258 (if path filepath nil)))))
5260 (defun erc-select-startup-file ()
5261 "Select an ERC startup file.
5262 See also `erc-startup-file-list'."
5264 (dolist (f erc-startup-file-list)
5265 (setq f (convert-standard-filename f))
5266 (when (file-readable-p f)
5267 (throw 'found f)))))
5269 (defun erc-find-script-file (file)
5270 "Search for FILE in `default-directory', and any in `erc-script-path'."
5271 (erc-find-file file erc-script-path))
5273 (defun erc-load-script (file)
5274 "Load a script from FILE.
5276 FILE must be the full name, it is not searched in the
5277 `erc-script-path'. If the filename ends with `.el', then load it
5278 as an Emacs Lisp program. Otherwise, treat it as a regular IRC
5280 (erc-log (concat "erc-load-script: " file))
5282 ((string-match "\\.el$" file)
5285 (erc-load-irc-script file))))
5287 (defun erc-process-script-line (line &optional args)
5288 "Process an IRC script LINE.
5290 Does script-specific substitutions (script arguments, current nick,
5291 server, etc.) in LINE and returns it.
5293 Substitutions are: %C and %c = current target (channel or nick),
5294 %S %s = current server, %N %n = my current nick, and %x is x verbatim,
5295 where x is any other character;
5296 $* = the entire argument string, $1 = the first argument, $2 = the second,
5298 (if (not args) (setq args ""))
5299 (let* ((arg-esc-regexp "\\(\\$\\(\\*\\|[1-9][0-9]*\\)\\)\\([^0-9]\\|$\\)")
5300 (percent-regexp "\\(%.\\)")
5301 (esc-regexp (concat arg-esc-regexp "\\|" percent-regexp))
5302 (tgt (erc-default-target))
5303 (server (and (boundp 'erc-session-server) erc-session-server))
5304 (nick (erc-current-nick))
5309 (if (not tgt) (setq tgt ""))
5310 (if (not server) (setq server ""))
5311 (if (not nick) (setq nick ""))
5312 ;; First, compute the argument list
5314 (while (string-match "^\\s-*\\(\\S-+\\)\\(\\s-+.*$\\|$\\)" tmp)
5315 (setq arg-list (cons (match-string 1 tmp) arg-list))
5316 (setq tmp (match-string 2 tmp)))
5317 (setq arg-list (nreverse arg-list))
5318 (setq arg-num (length arg-list))
5319 ;; now do the substitution
5320 (setq tmp (string-match esc-regexp line))
5322 ;;(message "beginning of while: tmp=%S" tmp)
5323 (let* ((hd (substring line 0 tmp))
5326 (tail (substring line tmp)))
5327 (cond ((string-match (concat "^" arg-esc-regexp) tail)
5328 (setq esc (match-string 1 tail))
5329 (setq tail (substring tail (match-end 1))))
5330 ((string-match (concat "^" percent-regexp) tail)
5331 (setq esc (match-string 1 tail))
5332 (setq tail (substring tail (match-end 1)))))
5333 ;;(message "hd=%S, esc=%S, tail=%S, arg-num=%S" hd esc tail arg-num)
5334 (setq res (concat res hd))
5336 (cond ((string= esc "") "")
5337 ((string-match "^\\$\\*$" esc) args)
5338 ((string-match "^\\$\\([0-9]+\\)$" esc)
5339 (let ((n (string-to-number (match-string 1 esc))))
5340 (message "n = %S, integerp(n)=%S" n (integerp n))
5341 (if (<= n arg-num) (nth (1- n) arg-list) "")))
5342 ((string-match "^%[Cc]$" esc) tgt)
5343 ((string-match "^%[Ss]$" esc) server)
5344 ((string-match "^%[Nn]$" esc) nick)
5345 ((string-match "^%\\(.\\)$" esc) (match-string 1 esc))
5346 (t (erc-log (format "BUG in erc-process-script-line: bad escape sequence: %S\n" esc))
5347 (message "BUG IN ERC: esc=%S" esc)
5350 (setq tmp (string-match esc-regexp line))
5351 (setq res (concat res subst))
5352 ;;(message "end of while: line=%S, res=%S, tmp=%S" line res tmp)
5354 (setq res (concat res line))
5357 (defun erc-load-irc-script (file &optional force)
5358 "Load an IRC script from FILE."
5359 (erc-log (concat "erc-load-script: " file))
5360 (let ((str (with-temp-buffer
5361 (insert-file-contents file)
5363 (erc-load-irc-script-lines (erc-split-multiline-safe str) force)))
5365 (defun erc-load-irc-script-lines (lines &optional force noexpand)
5366 "Load IRC script LINES (a list of strings).
5368 If optional NOEXPAND is non-nil, do not expand script-specific
5369 sequences, process the lines verbatim. Use this for multiline
5371 (let* ((cb (current-buffer))
5374 (sp (or (erc-command-indicator) (erc-prompt)))
5375 (args (and (boundp 'erc-script-args) erc-script-args)))
5376 (if (and args (string-match "^ " args))
5377 (setq args (substring args 1)))
5378 ;; prepare the prompt string for echo
5379 (erc-put-text-property 0 (length sp)
5380 'face 'erc-command-indicator-face sp)
5382 (setq s (car lines))
5383 (erc-log (concat "erc-load-script: CMD: " s))
5384 (unless (string-match "^\\s-*$" s)
5385 (let ((line (if noexpand s (erc-process-script-line s args))))
5386 (if (and (erc-process-input-line line force)
5389 (erc-put-text-property 0 (length line)
5390 'face 'erc-input-face line)
5391 (erc-display-line (concat sp line) cb)))))
5392 (setq lines (cdr lines)))))
5397 "Perform user authentication at the IRC server."
5398 (erc-log (format "login: nick: %s, user: %s %s %s :%s"
5403 erc-session-user-full-name))
5404 (if erc-session-password
5405 (erc-server-send (format "PASS %s" erc-session-password))
5406 (message "Logging in without password"))
5407 (erc-server-send (format "NICK %s" (erc-current-nick)))
5409 (format "USER %s %s %s :%s"
5411 (if erc-anonymous-login erc-email-userid (user-login-name))
5413 erc-session-user-full-name))
5414 (erc-update-mode-line))
5416 ;; connection properties' heuristics
5418 (defun erc-determine-parameters (&optional server port nick name)
5419 "Determine the connection and authentication parameters.
5420 Sets the buffer local variables:
5422 - `erc-session-server'
5423 - `erc-session-port'
5424 - `erc-session-full-name'
5425 - `erc-server-current-nick'"
5426 (setq erc-session-server (erc-compute-server server)
5427 erc-session-port (or port erc-default-port)
5428 erc-session-user-full-name (erc-compute-full-name name))
5429 (erc-set-current-nick (erc-compute-nick nick)))
5431 (defun erc-compute-server (&optional server)
5432 "Return an IRC server name.
5434 This tries a number of increasingly more default methods until a
5435 non-nil value is found.
5437 - SERVER (the argument passed to this function)
5438 - The `erc-server' option
5439 - The value of the IRCSERVER environment variable
5440 - The `erc-default-server' variable"
5443 (getenv "IRCSERVER")
5444 erc-default-server))
5446 (defun erc-compute-nick (&optional nick)
5447 "Return user's IRC nick.
5449 This tries a number of increasingly more default methods until a
5450 non-nil value is found.
5452 - NICK (the argument passed to this function)
5453 - The `erc-nick' option
5454 - The value of the IRCNICK environment variable
5455 - The result from the `user-login-name' function"
5457 (if (consp erc-nick) (car erc-nick) erc-nick)
5462 (defun erc-compute-full-name (&optional full-name)
5463 "Return user's full name.
5465 This tries a number of increasingly more default methods until a
5466 non-nil value is found.
5468 - FULL-NAME (the argument passed to this function)
5469 - The `erc-user-full-name' option
5470 - The value of the IRCNAME environment variable
5471 - The result from the `user-full-name' function"
5475 (if erc-anonymous-login "unknown" nil)
5478 (defun erc-compute-port (&optional port)
5479 "Return a port for an IRC server.
5481 This tries a number of increasingly more default methods until a
5482 non-nil value is found.
5484 - PORT (the argument passed to this function)
5485 - The `erc-port' option
5486 - The `erc-default-port' variable"
5487 (or port erc-port erc-default-port))
5491 (defun erc-string-to-emacs-time (string)
5492 "Convert the long number represented by STRING into an Emacs format.
5493 Returns a list of the form (HIGH LOW), compatible with Emacs time format."
5494 (let* ((n (string-to-number (concat string ".0"))))
5495 (list (truncate (/ n 65536))
5496 (truncate (mod n 65536)))))
5498 (defun erc-emacs-time-to-erc-time (time)
5499 "Convert Emacs TIME to a number of seconds since the epoch."
5501 (+ (* (nth 0 time) 65536.0) (nth 1 time))))
5502 ; (round (+ (* (nth 0 tm) 65536.0) (nth 1 tm))))
5504 (defun erc-current-time ()
5505 "Return the `current-time' as a number of seconds since the epoch.
5507 See also `erc-emacs-time-to-erc-time'."
5508 (erc-emacs-time-to-erc-time (current-time)))
5510 (defun erc-time-diff (t1 t2)
5511 "Return the time difference in seconds between T1 and T2."
5514 (defun erc-time-gt (t1 t2)
5515 "Check whether T1 > T2."
5518 (defun erc-sec-to-time (ns)
5519 "Convert NS to a time string HH:MM.SS."
5520 (setq ns (truncate ns))
5521 (format "%02d:%02d.%02d"
5526 (defun erc-seconds-to-string (seconds)
5527 "Convert a number of SECONDS into an English phrase."
5528 (let (days hours minutes format-args output)
5529 (setq days (/ seconds 86400)
5530 seconds (% seconds 86400)
5531 hours (/ seconds 3600)
5532 seconds (% seconds 3600)
5533 minutes (/ seconds 60)
5534 seconds (% seconds 60)
5535 format-args (if (> days 0)
5536 `("%d days, %d hours, %d minutes, %d seconds"
5537 ,days ,hours ,minutes ,seconds)
5539 `("%d hours, %d minutes, %d seconds"
5540 ,hours ,minutes ,seconds)
5542 `("%d minutes, %d seconds" ,minutes ,seconds)
5543 `("%d seconds" ,seconds))))
5544 output (apply 'format format-args))
5545 ;; Change all "1 units" to "1 unit".
5546 (while (string-match "\\([^0-9]\\|^\\)1 \\S-+\\(s\\)" output)
5547 (setq output (erc-replace-match-subexpression-in-string
5548 "" output (match-string 2 output) 2 (match-beginning 2))))
5554 (defconst erc-clientinfo-alist
5555 '(("ACTION" . "is used to inform about one's current activity")
5556 ("CLIENTINFO" . "gives help on CTCP commands supported by client")
5557 ("ECHO" . "echoes its arguments back")
5558 ("FINGER" . "shows user's name, location, and idle time")
5559 ("PING" . "measures delay between peers")
5560 ("TIME" . "shows client-side time")
5561 ("USERINFO" . "shows information provided by a user")
5562 ("VERSION" . "shows client type and version"))
5563 "Alist of CTCP CLIENTINFO for ERC commands.")
5565 (defun erc-client-info (s)
5566 "Return CTCP CLIENTINFO on command S.
5567 If S is nil or an empty string then return general CLIENTINFO."
5568 (if (or (not s) (string= s ""))
5572 (concat (car e) " "))
5573 erc-clientinfo-alist))
5574 ": use CLIENTINFO <COMMAND> to get more specific information")
5575 (let ((h (assoc (upcase s) erc-clientinfo-alist)))
5577 (concat s " " (cdr h))
5578 (concat s ": unknown command")))))
5582 (defun erc-directory-writable-p (dir)
5583 "Determine whether DIR is a writable directory.
5584 If it doesn't exist, create it."
5585 (unless (file-attributes dir) (make-directory dir))
5586 (or (file-accessible-directory-p dir) (error "Cannot access %s" dir)))
5588 (defun erc-kill-query-buffers (process)
5589 "Kill all buffers of PROCESS."
5590 ;; here, we only want to match the channel buffers, to avoid
5591 ;; "selecting killed buffers" b0rkage.
5592 (erc-with-all-buffers-of-server process
5594 (not (erc-server-buffer-p)))
5595 (kill-buffer (current-buffer))))
5597 (defun erc-nick-at-point ()
5598 "Give information about the nickname at `point'.
5600 If called interactively, give a human readable message in the
5601 minibuffer. If called programatically, return the corresponding
5602 entry of `channel-members'."
5604 (require 'thingatpt)
5605 (let* ((word (word-at-point))
5606 (channel-data (erc-get-channel-user word))
5607 (cuser (cdr channel-data))
5608 (user (if channel-data
5610 (erc-get-server-user word)))
5611 host login full-name info nick op voice)
5613 (setq nick (erc-server-user-nickname user)
5614 host (erc-server-user-host user)
5615 login (erc-server-user-login user)
5616 full-name (erc-server-user-full-name user)
5617 info (erc-server-user-info user))
5619 (setq op (erc-channel-user-op cuser)
5620 voice (erc-channel-user-voice cuser)))
5622 (message "%s is %s@%s%s%s"
5624 (if full-name (format " (%s)" full-name) "")
5626 (format " and is +%s%s on %s"
5629 (erc-default-target))
5633 (defun erc-away-p ()
5634 "Return t if the current ERC process is set away."
5636 (and (erc-server-buffer-live-p)
5637 (set-buffer (process-buffer erc-server-process))
5640 ;; Mode line handling
5642 (defcustom erc-mode-line-format "%s %a"
5643 "A string to be formatted and shown in the mode-line in `erc-mode'.
5645 The string is formatted using `format-spec' and the result is set as the value
5646 of `mode-line-buffer-identification'.
5648 The following characters are replaced:
5649 %a: String indicating away status or \"\" if you are not away
5650 %m: The modes of the channel
5651 %n: The current nick name
5652 %o: The topic of the channel
5653 %p: The session port
5654 %t: The name of the target (channel, nickname, or servername:port)
5655 %s: In the server-buffer, this gets filled with the value of
5656 `erc-server-announced-name', in a channel, the value of
5657 (erc-default-target) also get concatenated."
5658 :group 'erc-mode-line-and-header
5661 (defcustom erc-header-line-format "[IRC] %n on %t %m %o"
5662 "A string to be formatted and shown in the header-line in `erc-mode'.
5663 Only used in Emacs 21.
5665 See `erc-mode-line-format' for which characters are can be used."
5666 :group 'erc-mode-line-and-header
5669 (defcustom erc-header-line-uses-help-echo-p t
5670 "Show the contents of the header line in the echo area or as a tooltip
5671 when you move point into the header line."
5672 :group 'erc-mode-line-and-header
5675 (defcustom erc-header-line-face-method nil
5676 "Determine what method to use when colorizing the header line text.
5678 If nil, don't colorize the header text.
5679 If given a function, call it and use the resulting face name.
5680 Otherwise, use the `erc-header-line' face."
5681 :group 'erc-mode-line-and-header
5682 :type '(choice (const :tag "Don't colorize" nil)
5683 (const :tag "Use the erc-header-line face" t)
5684 (function :tag "Call a function")))
5686 (defcustom erc-show-channel-key-p t
5687 "Show the the channel key in the header line."
5688 :group 'erc-paranoia
5691 (defcustom erc-common-server-suffixes
5692 '(("openprojects.net$" . "OPN")
5693 ("freenode.net$" . "OPN"))
5694 "Alist of common server name suffixes.
5695 This variable is used in mode-line display to save screen
5696 real estate. Set it to nil if you want to avoid changing
5697 displayed hostnames."
5698 :group 'erc-mode-line-and-header
5701 (defcustom erc-mode-line-away-status-format
5702 "(AWAY since %a %b %d %H:%M) "
5703 "When you're away on a server, this is shown in the mode line.
5704 This should be a string with substitution variables recognized by
5705 `format-time-string'."
5706 :group 'erc-mode-line-and-header
5709 (defun erc-shorten-server-name (server-name)
5710 "Shorten SERVER-NAME according to `erc-common-server-suffixes'."
5711 (if (stringp server-name)
5713 (insert server-name)
5714 (let ((alist erc-common-server-suffixes))
5716 (goto-char (point-min))
5717 (if (re-search-forward (caar alist) nil t)
5718 (replace-match (cdar alist)))
5719 (setq alist (cdr alist))))
5722 (defun erc-format-target ()
5723 "Return the name of the target (channel or nickname or servername:port)."
5724 (let ((target (erc-default-target)))
5726 (concat (erc-shorten-server-name
5727 (or erc-server-announced-name
5728 erc-session-server))
5729 ":" (erc-port-to-string erc-session-port)))))
5731 (defun erc-format-target-and/or-server ()
5732 "Return the server name or the current target and server name combined."
5733 (let ((server-name (erc-shorten-server-name
5734 (or erc-server-announced-name
5735 erc-session-server))))
5736 (cond ((erc-default-target)
5737 (concat (erc-string-no-properties (erc-default-target))
5739 (server-name server-name)
5740 (t (buffer-name (current-buffer))))))
5742 (defun erc-format-away-status ()
5743 "Return a formatted `erc-mode-line-away-status-format'
5744 if `erc-away' is non-nil."
5745 (let ((a (when (erc-server-buffer-live-p)
5746 (with-current-buffer (process-buffer erc-server-process)
5749 (format-time-string erc-mode-line-away-status-format a)
5752 (defun erc-format-channel-modes ()
5753 "Return the current channel's modes and the estimated lag."
5754 (let ((lag (when (erc-server-buffer-live-p)
5755 (with-current-buffer (process-buffer erc-server-process)
5757 (concat (apply 'concat
5758 "(+" erc-channel-modes)
5759 (cond ((and erc-channel-user-limit erc-channel-key)
5760 (if erc-show-channel-key-p
5761 (format "lk %.0f %s" erc-channel-user-limit
5763 (format "kl %.0f" erc-channel-user-limit)))
5764 (erc-channel-user-limit
5765 ;; Emacs has no bignums
5766 (format "l %.0f" erc-channel-user-limit))
5768 (if erc-show-channel-key-p
5769 (format "k %s" erc-channel-key)
5772 (if lag (format ",lag:%.0f" lag) "")
5775 (defun erc-update-mode-line-buffer (buffer)
5776 "Update the mode line in a single ERC buffer BUFFER."
5777 (with-current-buffer buffer
5778 (let ((spec (format-spec-make
5779 ?a (erc-format-away-status)
5780 ?m (erc-format-channel-modes)
5781 ?n (or (erc-current-nick) "")
5782 ?o (erc-controls-strip erc-channel-topic)
5783 ?p (erc-port-to-string erc-session-port)
5784 ?s (erc-format-target-and/or-server)
5785 ?t (erc-format-target)))
5786 (process-status (cond ((and (erc-server-process-alive)
5787 (not erc-server-connected))
5789 ((erc-server-process-alive)
5793 (face (cond ((eq erc-header-line-face-method nil)
5795 ((functionp erc-header-line-face-method)
5796 (funcall erc-header-line-face-method))
5798 'erc-header-line))))
5799 (cond ((featurep 'xemacs)
5800 (setq modeline-buffer-identification
5801 (list (format-spec erc-mode-line-format spec)))
5802 (setq modeline-process (list process-status)))
5804 (setq mode-line-buffer-identification
5805 (list (format-spec erc-mode-line-format spec)))
5806 (setq mode-line-process (list process-status))))
5807 (when (boundp 'header-line-format)
5808 (let ((header (if erc-header-line-format
5809 (format-spec erc-header-line-format spec)
5811 (cond ((null header)
5812 (setq header-line-format nil))
5813 (erc-header-line-uses-help-echo-p
5814 (let ((help-echo (with-temp-buffer
5816 (fill-region (point-min) (point-max))
5818 (setq header-line-format
5819 (erc-replace-regexp-in-string
5823 (erc-propertize header 'help-echo help-echo
5825 (erc-propertize header 'help-echo help-echo))))))
5826 (t (setq header-line-format header))))))
5827 (if (featurep 'xemacs)
5829 (force-mode-line-update))))
5831 (defun erc-update-mode-line (&optional buffer)
5832 "Update the mode line in BUFFER.
5834 If BUFFER is nil, update the mode line in all ERC buffers."
5835 (if (and buffer (bufferp buffer))
5836 (erc-update-mode-line-buffer buffer)
5837 (dolist (buf (erc-buffer-list))
5838 (when (buffer-live-p buf)
5839 (erc-update-mode-line-buffer buf)))))
5843 (defun erc-port-to-string (p)
5844 "Convert port P to a string.
5845 P may be an integer or a service name."
5850 (defun erc-string-to-port (s)
5851 "Convert string S to either an integer port number or a service name."
5854 (let ((n (string-to-number s)))
5859 (defun erc-version (&optional here)
5860 "Show the version number of ERC in the minibuffer.
5861 If optional argument HERE is non-nil, insert version number at point."
5863 (let ((version-string
5864 (format "ERC %s (GNU Emacs %s)" erc-version-string emacs-version)))
5866 (insert version-string)
5868 (message "%s" version-string)
5871 (defun erc-modes (&optional here)
5872 "Show the active ERC modes in the minibuffer.
5873 If optional argument HERE is non-nil, insert version number at point."
5876 (mapconcat 'identity
5877 (let (modes (case-fold-search nil))
5878 (dolist (var (apropos-internal "^erc-.*mode$"))
5879 (when (and (boundp var)
5881 (setq modes (cons (symbol-name var)
5888 (message "%s" string)
5891 (defun erc-trim-string (s)
5892 "Trim leading and trailing spaces off S."
5894 ((not (stringp s)) nil)
5895 ((string-match "^\\s-*$" s)
5897 ((string-match "^\\s-*\\(.*\\S-\\)\\s-*$" s)
5902 (defun erc-arrange-session-in-multiple-windows ()
5903 "Open a window for every non-server buffer related to `erc-session-server'.
5905 All windows are opened in the current frame."
5907 (unless erc-server-process
5908 (error "No erc-server-process found in current buffer"))
5909 (let ((bufs (erc-buffer-list nil erc-server-process)))
5911 (delete-other-windows)
5912 (switch-to-buffer (car bufs))
5913 (setq bufs (cdr bufs))
5917 (switch-to-buffer (car bufs))
5918 (setq bufs (cdr bufs))
5919 (balance-windows)))))
5921 (defun erc-popup-input-buffer ()
5922 "Provide an input buffer."
5924 (let ((buffer-name (generate-new-buffer-name "*ERC input*"))
5929 (list (symbol-name e)))
5930 (apropos-internal "-mode$" 'commandp))
5932 (pop-to-buffer (make-indirect-buffer (current-buffer) buffer-name))
5934 (narrow-to-region (point) (point))
5935 (shrink-window-if-larger-than-buffer)))
5939 (defun erc-make-message-variable-name (catalog entry)
5940 "Create a variable name corresponding to CATALOG's ENTRY."
5941 (intern (concat "erc-message-"
5942 (symbol-name catalog) "-" (symbol-name entry))))
5944 (defun erc-define-catalog-entry (catalog entry format-spec)
5945 "Set CATALOG's ENTRY to FORMAT-SPEC."
5946 (set (erc-make-message-variable-name catalog entry)
5949 (defun erc-define-catalog (catalog entries)
5950 "Define a CATALOG according to ENTRIES."
5951 (dolist (entry entries)
5952 (erc-define-catalog-entry catalog (car entry) (cdr entry))))
5956 '((bad-ping-response . "Unexpected PING response from %n (time %t)")
5957 (bad-syntax . "Error occurred - incorrect usage?\n%c %u\n%d")
5958 (incorrect-args . "Incorrect arguments. Usage:\n%c %u\n%d")
5959 (cannot-find-file . "Cannot find file %f")
5960 (cannot-read-file . "Cannot read file %f")
5961 (connect . "Connecting to %S:%p... ")
5963 (country-unknown . "%d: No such domain")
5964 (ctcp-empty . "Illegal empty CTCP query received from %n. Ignoring.")
5965 (ctcp-request . "==> CTCP request from %n (%u@%h): %r")
5966 (ctcp-request-to . "==> CTCP request from %n (%u@%h) to %t: %r")
5967 (ctcp-too-many . "Too many CTCP queries in single message. Ignoring")
5968 (flood-ctcp-off . "FLOOD PROTECTION: Automatic CTCP responses turned off.")
5970 . "FLOOD PROTECTION: Switched to Strict Flood Control mode.")
5971 (disconnected . "\n\nConnection failed! Re-establishing connection...\n")
5972 (disconnected-noreconnect
5973 . "\n\nConnection failed! Not re-establishing connection.\n")
5974 (finished . "\n\n*** ERC finished ***\n")
5975 (terminated . "\n\n*** ERC terminated: %e\n")
5976 (login . "Logging in as \'%n\'...")
5977 (nick-in-use . "%n is in use. Choose new nickname: ")
5979 . "WARNING: Nick length (%i) exceeds max NICKLEN(%l) defined by server")
5980 (no-default-channel . "No default channel")
5981 (no-invitation . "You've got no invitation")
5982 (no-target . "No target")
5983 (ops . "%i operator%s: %o")
5984 (ops-none . "No operators in this channel.")
5985 (undefined-ctcp . "Undefined CTCP query received. Silently ignored")
5986 (variable-not-bound . "Variable not bound!")
5987 (ACTION . "* %n %a")
5988 (CTCP-CLIENTINFO . "Client info for %n: %m")
5989 (CTCP-ECHO . "Echo %n: %m")
5990 (CTCP-FINGER . "Finger info for %n: %m")
5991 (CTCP-PING . "Ping time to %n is %t")
5992 (CTCP-TIME . "Time by %n is %m")
5993 (CTCP-UNKNOWN . "Unknown CTCP message from %n (%u@%h): %m")
5994 (CTCP-VERSION . "Version for %n is %m")
5995 (ERROR . "==> ERROR from %s: %c\n")
5996 (INVITE . "%n (%u@%h) invites you to channel %c")
5997 (JOIN . "%n (%u@%h) has joined channel %c")
5998 (JOIN-you . "You have joined channel %c")
5999 (KICK . "%n (%u@%h) has kicked %k off channel %c: %r")
6000 (KICK-you . "You have been kicked off channel %c by %n (%u@%h): %r")
6001 (KICK-by-you . "You have kicked %k off channel %c: %r")
6002 (MODE . "%n (%u@%h) has changed mode for %t to %m")
6003 (MODE-nick . "%n has changed mode for %t to %m")
6004 (NICK . "%n (%u@%h) is now known as %N")
6005 (NICK-you . "Your new nickname is %N")
6006 (PART . erc-message-english-PART)
6007 (PING . "PING from server (last: %s sec. ago)")
6008 (PONG . "PONG from %h (%i second%s)")
6009 (QUIT . "%n (%u@%h) has quit: %r")
6010 (TOPIC . "%n (%u@%h) has set the topic for %c: \"%T\"")
6011 (WALLOPS . "Wallops from %n: %m")
6012 (s004 . "%s %v %U %C")
6013 (s221 . "User modes for %n: %m")
6014 (s252 . "%i operator(s) online")
6015 (s253 . "%i unknown connection(s)")
6016 (s254 . "%i channels formed")
6017 (s301 . "%n is AWAY: %r")
6018 (s303 . "Is online: %n")
6021 (s311 . "%n is %f (%u@%h)")
6022 (s312 . "%n is/was on server %s (%c)")
6023 (s313 . "%n is an IRC operator")
6024 (s314 . "%n was %f (%u@%h)")
6025 (s317 . "%n has been idle for %i")
6026 (s317-on-since . "%n has been idle for %i, on since %t")
6027 (s319 . "%n is on channel(s): %c")
6028 (s320 . "%n is an identified user")
6029 (s321 . "Channel Users Topic")
6030 (s322 . "%c [%u] %t")
6031 (s324 . "%c modes: %m")
6032 (s329 . "%c was created on %t")
6034 (s331 . "No topic is set for %c")
6035 (s332 . "Topic for %c: %T")
6036 (s333 . "%c: topic set by %n, %t")
6037 (s341 . "Inviting %n to channel %c")
6038 (s352 . "%-11c %-10n %-4a %u@%h (%f)")
6039 (s353 . "Users on %c: %u")
6040 (s367 . "Ban for %b on %c")
6041 (s367-set-by . "Ban for %b on %c set by %s on %t")
6042 (s368 . "Banlist of %c ends.")
6043 (s379 . "%c: Forwarded to %f")
6044 (s391 . "The time at %s is %t")
6045 (s401 . "%n: No such nick/channel")
6046 (s403 . "%c: No such channel")
6047 (s404 . "%c: Cannot send to channel")
6048 (s405 . "%c: You have joined too many channels")
6049 (s406 . "%n: There was no such nickname")
6050 (s412 . "No text to send")
6051 (s421 . "%c: Unknown command")
6052 (s431 . "No nickname given")
6053 (s432 . "%n is an erroneous nickname")
6054 (s442 . "%c: You're not on that channel")
6055 (s445 . "SUMMON has been disabled")
6056 (s446 . "USERS has been disabled")
6057 (s451 . "You have not registered")
6058 (s461 . "%c: not enough parameters")
6059 (s462 . "Unauthorized command (already registered)")
6060 (s463 . "Your host isn't among the privileged")
6061 (s464 . "Password incorrect")
6062 (s465 . "You are banned from this server")
6063 (s474 . "You can't join %c because you're banned (+b)")
6064 (s475 . "You must specify the correct channel key (+k) to join %c")
6065 (s481 . "Permission Denied - You're not an IRC operator")
6066 (s482 . "You need to be a channel operator of %c to do that")
6067 (s483 . "You can't kill a server!")
6068 (s484 . "Your connection is restricted!")
6069 (s485 . "You're not the original channel operator")
6070 (s491 . "No O-lines for your host")
6071 (s501 . "Unknown MODE flag")
6072 (s502 . "You can't change modes for other users")))
6074 (defun erc-message-english-PART (&rest args)
6075 "Format a proper PART message.
6077 This function is an example on what could be done with formatting
6079 (let ((nick (cadr (memq ?n args)))
6080 (user (cadr (memq ?u args)))
6081 (host (cadr (memq ?h args)))
6082 (channel (cadr (memq ?c args)))
6083 (reason (cadr (memq ?r args))))
6084 (if (string= nick (erc-current-nick))
6085 (format "You have left channel %s" channel)
6086 (format "%s (%s@%s) has left channel %s%s"
6087 nick user host channel
6088 (if (not (string= reason ""))
6089 (format ": %s" reason)
6093 (defvar erc-current-message-catalog 'english)
6094 (make-variable-buffer-local 'erc-current-message-catalog)
6096 (defun erc-retrieve-catalog-entry (entry &optional catalog)
6097 "Retrieve ENTRY from CATALOG.
6099 If CATALOG is nil, `erc-current-message-catalog' is used.
6101 If ENTRY is nil in CATALOG, it is retrieved from the fallback,
6103 (unless catalog (setq catalog erc-current-message-catalog))
6104 (let ((var (erc-make-message-variable-name catalog entry)))
6107 (when (boundp (erc-make-message-variable-name 'english entry))
6108 (symbol-value (erc-make-message-variable-name 'english entry))))))
6110 (defun erc-format-message (msg &rest args)
6111 "Format MSG according to ARGS.
6113 See also `format-spec'."
6114 (when (eq (logand (length args) 1) 1) ; oddp
6115 (error "Obscure usage of this function appeared"))
6116 (let ((entry (erc-retrieve-catalog-entry msg)))
6118 (error "No format spec for message %s" msg))
6119 (when (functionp entry)
6120 (setq entry (apply entry args)))
6121 (format-spec entry (apply 'format-spec-make args))))
6123 ;;; Various hook functions
6125 (add-hook 'kill-buffer-hook 'erc-kill-buffer-function)
6127 (defcustom erc-kill-server-hook '(erc-kill-server)
6128 "*Invoked whenever a server-buffer is killed via `kill-buffer'."
6132 (defcustom erc-kill-channel-hook '(erc-kill-channel)
6133 "*Invoked whenever a channel-buffer is killed via `kill-buffer'."
6137 (defcustom erc-kill-buffer-hook nil
6138 "*Hook run whenever a non-server or channel buffer is killed.
6140 See also `kill-buffer'."
6144 (defun erc-kill-buffer-function ()
6145 "Function to call when an ERC buffer is killed.
6146 This function should be on `kill-buffer-hook'.
6147 When the current buffer is in `erc-mode', this function will run
6148 one of the following hooks:
6149 `erc-kill-server-hook' if the server buffer was killed,
6150 `erc-kill-channel-hook' if a channel buffer was killed,
6151 or `erc-kill-buffer-hook' if any other buffer."
6152 (when (eq major-mode 'erc-mode)
6153 (erc-remove-channel-users)
6155 ((eq (erc-server-buffer) (current-buffer))
6156 (run-hooks 'erc-kill-server-hook))
6157 ((erc-channel-p (erc-default-target))
6158 (run-hooks 'erc-kill-channel-hook))
6160 (run-hooks 'erc-kill-buffer-hook)))))
6162 (defun erc-kill-server ()
6163 "Sends a QUIT command to the server when the server buffer is killed.
6164 This function should be on `erc-kill-server-hook'."
6165 (when (erc-server-process-alive)
6166 (setq erc-server-quitting t)
6167 (erc-server-send (format "QUIT :%s" (funcall erc-quit-reason nil)))))
6169 (defun erc-kill-channel ()
6170 "Sends a PART command to the server when the channel buffer is killed.
6171 This function should be on `erc-kill-channel-hook'."
6172 (when (erc-server-process-alive)
6173 (let ((tgt (erc-default-target)))
6174 (erc-server-send (format "PART %s :%s" tgt
6175 (funcall erc-part-reason nil))
6178 ;;; Dealing with `erc-parsed'
6180 (defun erc-get-parsed-vector (point)
6181 "Return the whole parsed vector on POINT."
6182 (get-text-property point 'erc-parsed))
6184 (defun erc-get-parsed-vector-nick (vect)
6185 "Return nickname in the parsed vector VECT."
6186 (let* ((untreated-nick (and vect (erc-response.sender vect)))
6187 (maybe-nick (when untreated-nick
6188 (car (split-string untreated-nick "!")))))
6189 (when (and (not (null maybe-nick))
6190 (erc-is-valid-nick-p maybe-nick))
6193 (defun erc-get-parsed-vector-type (vect)
6194 "Return message type in the parsed vector VECT."
6196 (erc-response.command vect)))
6198 ;; Teach url.el how to open irc:// URLs with ERC.
6199 ;; To activate, customize `url-irc-function' to `url-irc-erc'.
6202 (defun erc-handle-irc-url (host port channel user password)
6203 "Use ERC to IRC on HOST:PORT in CHANNEL as USER with PASSWORD.
6204 If ERC is already connected to HOST:PORT, simply /join CHANNEL.
6205 Otherwise, connect to HOST:PORT as USER and /join CHANNEL."
6206 (let ((server-buffer
6207 (car (erc-buffer-filter
6209 (and (string-equal erc-session-server host)
6210 (= erc-session-port port)
6211 erc-server-connected
6212 (eq (erc-server-buffer) (current-buffer))))))))
6213 (with-current-buffer (or server-buffer (current-buffer))
6214 (if (and server-buffer channel)
6215 (erc-cmd-JOIN channel)
6216 (erc-open host port (or user (erc-compute-nick)) (erc-compute-full-name)
6217 (not server-buffer) password nil channel
6219 (get-buffer-process server-buffer)))))))
6223 ;;; Deprecated. We might eventually stop requiring the goodies automatically.
6224 ;;; IMPORTANT: This require must appear _after_ the above (provide 'erc) to
6225 ;;; avoid a recursive require error when byte-compiling the entire package.
6226 (require 'erc-goodies)
6228 ;;; erc.el ends here
6231 ;; outline-regexp: ";;+"
6232 ;; indent-tabs-mode: t
6236 ;; arch-tag: d19587f6-627e-48c1-8d86-58595fa3eca3