| blob | cedc4f6b517b5a8d91d0ab741abb561ae3d49ee0 |
1 ;; erc.el --- An Emacs Internet Relay Chat client -*- lexical-binding:t -*-
3 ;; Copyright (C) 1997-2014 Free Software Foundation, Inc.
5 ;; Author: Alexander L. Belikoff (alexander@belikoff.net)
6 ;; Contributors: Sergey Berezin (sergey.berezin@cs.cmu.edu),
7 ;; Mario Lang (mlang@delysid.org),
8 ;; Alex Schroeder (alex@gnu.org)
9 ;; Andreas Fuchs (afs@void.at)
10 ;; Gergely Nagy (algernon@midgard.debian.net)
11 ;; David Edmondson (dme@dme.org)
12 ;; Kelvin White (kwhite@gnu.org)
13 ;; Maintainer: emacs-devel@gnu.org
14 ;; Keywords: IRC, chat, client, Internet
15 ;; Version: 5.3
17 ;; This file is part of GNU Emacs.
19 ;; GNU Emacs is free software: you can redistribute it and/or modify
20 ;; it under the terms of the GNU General Public License as published by
21 ;; the Free Software Foundation, either version 3 of the License, or
22 ;; (at your option) any later version.
24 ;; GNU Emacs is distributed in the hope that it will be useful,
25 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
26 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 ;; GNU General Public License for more details.
29 ;; You should have received a copy of the GNU General Public License
30 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
32 ;;; Commentary:
34 ;; ERC is a powerful, modular, and extensible IRC client for Emacs.
36 ;; For more information, see the following URLs:
37 ;; * http://sv.gnu.org/projects/erc/
38 ;; * http://www.emacswiki.org/cgi-bin/wiki/ERC
40 ;; As of 2006-06-13, ERC development is now hosted on Savannah
41 ;; (http://sv.gnu.org/projects/erc). I invite everyone who wants to
42 ;; hack on it to contact me <mwolson@gnu.org> in order to get write
43 ;; access to the shared Arch archive.
45 ;; Installation:
47 ;; Put erc.el in your load-path, and put (require 'erc) in your .emacs.
49 ;; Configuration:
51 ;; Use M-x customize-group RET erc RET to get an overview
52 ;; of all the variables you can tweak.
54 ;; Usage:
56 ;; To connect to an IRC server, do
57 ;;
58 ;; M-x erc RET
59 ;;
60 ;; After you are connected to a server, you can use C-h m or have a look at
61 ;; the ERC menu.
63 ;;; History:
64 ;;
66 ;;; Code:
79 "http://emacswiki.org/cgi-bin/wiki/ERC (mailing list: erc-discuss@gnu.org)"
83 "Emacs Internet Relay Chat client."
90 "Creating new ERC buffers"
94 "Settings for how various things are displayed"
98 "Displaying information in the mode-line and header"
102 "Ignoring certain messages"
106 "Hide specified message types sent by lurkers"
111 "Using separate buffers for private discussions"
115 "Quitting and parting channels"
119 "Know what is sent and received; control the display of sensitive data."
123 "Running scripts at startup and with /LOAD"
128 ;; compatibility with older ERC releases
139 ;; tunable connection and authentication parameters
142 "IRC server to use if one is not provided.
143 See function `erc-compute-server' for more details on connection
144 parameters and authentication."
150 "IRC port to use if not specified.
152 This can be either a string or a number."
159 "Nickname to use if one is not provided.
161 This can be either a string, or a list of strings.
162 In the latter case, if the first nick in the list is already in use,
163 other nicks are tried in the list order.
165 See function `erc-compute-nick' for more details on connection
166 parameters and authentication."
173 "The string to append to the nick if it is already in use."
178 "If the nickname you chose isn't available, and this option is non-nil,
179 ERC should automatically attempt to connect with another nickname.
181 You can manually set another nickname with the /NICK command."
186 "User full name.
188 This can be either a string or a function to call.
190 See function `erc-compute-full-name' for more details on connection
191 parameters and authentication."
200 "Password to use when authenticating to an IRC server.
201 It is not strictly necessary to provide this, since ERC will
205 "Initial user modes to be set after a connection is established."
211 "Asks before using the default password, or whether to enter a new one."
216 "Warn the user if they attempt to send a blank line."
221 "If set to non-nil, send lines consisting of only whitespace."
226 "If non-nil, do not display the prompt for commands.
228 \(A command is any input starting with a '/').
230 See also the variables `erc-prompt' and `erc-command-indicator'."
234 ;; tunable GUI stuff
237 "If non-nil, display one's own nickname when sending a message.
245 "A set of standard IRC Message types."
255 "List of IRC type messages to hide.
265 "Run this hook with arguments (NICK IP REASON) when disconnected.
266 This happens before automatic reconnection. Note, that
267 `erc-server-QUIT-functions' might not be run when we disconnect,
268 simply because we do not necessarily receive the QUIT event."
273 "These functions get called when the user hits TAB in ERC.
274 Each function in turn is called until one returns non-nil to
275 indicate it has handled the input."
280 "Hook run when we join a channel. Hook functions are called
281 without arguments, with the current buffer set to the buffer of
282 the new channel.
284 See also `erc-server-JOIN-functions', `erc-part-hook'."
289 "Hook run when processing a quit command directed at our nick.
291 The hook receives one argument, the current PROCESS.
292 See also `erc-server-QUIT-functions' and `erc-disconnected-hook'."
297 "Hook run when processing a PART message directed at our nick.
299 The hook receives one argument, the current BUFFER.
300 See also `erc-server-QUIT-functions', `erc-quit-hook' and
301 `erc-disconnected-hook'."
306 "Hook run when processing a KICK message directed at our nick.
308 The hook receives one argument, the current BUFFER.
309 See also `erc-server-PART-functions' and `erc-part-hook'."
314 "List of functions run when your nick was successfully changed.
316 Each function should accept two arguments, NEW-NICK and OLD-NICK."
321 "Hook called just before `erc' calls `erc-connect'.
322 Functions are passed a buffer as the first argument."
328 "A hash table of members in the current channel, which
329 associates nicknames with cons cells of the form:
330 \(USER . MEMBER-DATA) where USER is a pointer to an
331 erc-server-user struct, and MEMBER-DATA is a pointer to an
336 "A hash table of users on the current server, which associates
341 "Convert STRING to IRC standard conforming downcase."
351 s))
354 "Execute BODY in the current ERC server buffer.
355 If no server buffer exists, return nil."
364 ;; User data
365 nickname host login full-name info
366 ;; Buffers
367 ;;
368 ;; This is an alist of the form (BUFFER . CHANNEL-DATA), where
369 ;; CHANNEL-DATA is either nil or an erc-channel-user struct.
371 )
374 voice halfop op admin owner
375 ;; Last message time (in the form of the return value of
376 ;; (current-time)
377 ;;
378 ;; This is useful for ordered name completion.
382 "Find the (USER . CHANNEL-DATA) element corresponding to NICK
383 in the current buffer's `erc-channel-users' hash table."
387 "Find the USER corresponding to NICK in the current server's
388 `erc-server-users' hash table."
393 "This function is for internal use only.
395 Adds USER with nickname NICK to the `erc-server-users' hash table."
400 "This function is for internal use only.
402 Removes the user with nickname NICK from the `erc-server-users'
403 hash table. This user is not removed from the
404 `erc-channel-users' lists of other buffers.
406 See also: `erc-remove-user'."
411 "This function is for internal use only.
413 Changes the nickname of USER to NEW-NICK in the
414 `erc-server-users' hash table. The `erc-channel-users' lists of
415 other buffers are also changed."
427 erc-channel-users)))))))
430 "This function is for internal use only.
432 Removes the user with nickname NICK from the `erc-channel-users'
433 list for this channel. If this user is not in the
434 `erc-channel-users' list of any other buffers, the user is also
435 removed from the server's `erc-server-users' list.
437 See also: `erc-remove-server-user' and `erc-remove-user'."
449 "This function is for internal use only.
451 Removes the user with nickname NICK from the `erc-server-users'
452 list as well as from all `erc-channel-users' lists.
454 See also: `erc-remove-server-user' and
455 `erc-remove-channel-user'."
467 "This function is for internal use only.
469 Removes all users in the current channel. This is called by
470 `erc-server-PART' and `erc-server-QUIT'."
476 erc-channel-users)
480 "Return non-nil if NICK is an owner of the current channel."
488 "Return non-nil if NICK is an admin in the current channel."
496 "Return non-nil if NICK is an operator in the current channel."
504 "Return non-nil if NICK is a half-operator in the current channel."
512 "Return non-nil if NICK has voice in the current channel."
520 "Return a list of users in the current channel. Each element
521 of the list is of the form (USER . CHANNEL-DATA), where USER is
522 an erc-server-user struct, and CHANNEL-DATA is either nil or an
523 erc-channel-user struct.
525 See also: `erc-sort-channel-users-by-activity'"
530 erc-channel-users))
531 users))
534 "Return a list of known nicknames on the current server."
541 nicks)))
542 erc-server-users)
543 nicks))))
546 "Return a list of known nicknames on the current channel."
552 nicks)))
553 erc-channel-users)
554 nicks)))
557 "Return an alist of known nicknames on the current server."
564 nicks)))
565 erc-server-users)
566 nicks))))
569 "Return an alist of known nicknames on the current channel."
575 nicks)))
576 erc-channel-users)
577 nicks)))
580 "Sort LIST such that users which have spoken most recently are listed first.
581 LIST must be of the form (USER . CHANNEL-DATA).
583 See also: `erc-get-channel-user-list'."
594 "Sort LIST so that users' nicknames are in alphabetical order.
595 LIST must be of the form (USER . CHANNEL-DATA).
597 See also: `erc-get-channel-user-list'."
612 "List of strings representing channel modes.
626 "Return a copy of STRING will all text-properties removed."
629 newstring))
632 "Prompt used by ERC. Trailing whitespace is not required."
637 "Return the input prompt as a string.
639 See also the variable `erc-prompt'."
642 erc-prompt)))
645 prompt)))
648 "Indicator used by ERC for showing commands.
650 If non-nil, this will be used in the ERC buffer to indicate
651 commands (i.e., input starting with a '/').
653 If nil, the prompt will be constructed from the variable `erc-prompt'."
658 "Return the command indicator prompt as a string.
660 This only has any meaning if the variable `erc-command-indicator' is non-nil."
664 erc-command-indicator)))
667 prompt))))
670 "Prefix for all notices."
675 "Determines how to highlight notices.
676 See `erc-notice-prefix'.
678 The following values are allowed:
680 'prefix - highlight notice prefix only
681 'all - highlight the entire notice
683 Any other value disables notice's highlighting altogether."
690 "List of functions to call to echo a private notice.
691 Each function is called with four arguments, the string
692 to display, the parsed server message, the target buffer (or
693 nil), and the sender. The functions are called in order, until a
694 function evaluates to non-nil. These hooks are called after
695 those specified in `erc-echo-notice-always-hook'.
697 See also: `erc-echo-notice-always-hook',
698 `erc-echo-notice-in-default-buffer',
699 `erc-echo-notice-in-target-buffer',
700 `erc-echo-notice-in-minibuffer',
701 `erc-echo-notice-in-server-buffer',
702 `erc-echo-notice-in-active-non-server-buffer',
703 `erc-echo-notice-in-active-buffer',
704 `erc-echo-notice-in-user-buffers',
705 `erc-echo-notice-in-user-and-target-buffers',
706 `erc-echo-notice-in-first-user-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))
721 "List of functions to call to echo a private notice.
722 Each function is called with four arguments, the string
723 to display, the parsed server message, the target buffer (or
724 nil), and the sender. The functions are called in order, and all
725 functions are called. These hooks are called before those
726 specified in `erc-echo-notice-hook'.
728 See also: `erc-echo-notice-hook',
729 `erc-echo-notice-in-default-buffer',
730 `erc-echo-notice-in-target-buffer',
731 `erc-echo-notice-in-minibuffer',
732 `erc-echo-notice-in-server-buffer',
733 `erc-echo-notice-in-active-non-server-buffer',
734 `erc-echo-notice-in-active-buffer',
735 `erc-echo-notice-in-user-buffers',
736 `erc-echo-notice-in-user-and-target-buffers',
737 `erc-echo-notice-in-first-user-buffer'"
741 erc-echo-notice-in-target-buffer
742 erc-echo-notice-in-minibuffer
743 erc-echo-notice-in-server-buffer
744 erc-echo-notice-in-active-non-server-buffer
745 erc-echo-notice-in-active-buffer
746 erc-echo-notice-in-user-buffers
747 erc-echo-notice-in-user-and-target-buffers
748 erc-echo-notice-in-first-user-buffer))
750 ;; other tunable parameters
753 "If non-nil, do a whowas on a nick if no such nick."
758 "If non-nil, show every time you get a PING or PONG from the server."
763 "Let others know you are back when you are no longer marked away.
764 This happens in this form:
765 * <nick> is back (gone for <time>)
767 Many consider it impolite to do so automatically."
772 "The nickname to take when you are marked as being away."
775 string))
778 "If non-nil, then all incoming CTCP requests will be shown."
783 "Disable replies to CTCP requests that require a reply.
784 If non-nil, then all incoming CTCP requests that normally require
785 an automatic reply (like VERSION or PING) will be ignored. Good to
786 set if some hacker is trying to flood you away."
791 "Be paranoid, don't give away your machine name."
796 "Prompt for channel key when using `erc-join-channel' interactively."
801 "Use this as your email user ID."
806 "Use this as the name of your system.
807 If nil, ERC will call `system-name' to get this information."
810 string))
813 "List of regexps matching user identifiers to ignore.
816 identifier matches, the message from the person will not be
817 processed."
823 "List of regexps matching user identifiers to ignore completely.
825 This differs from `erc-ignore-list' in that it also ignores any
826 messages directed at the user.
830 If an identifier matches, or a message is addressed to a nick
831 whose identifier matches, the message will not be processed.
833 CAVEAT: ERC doesn't know about the user and host of anyone who
834 was already in the channel when you joined, but never said
835 anything, so it won't be able to match the user and host of those
836 people. You can update the ERC internal info using /WHO *."
841 "If non-nil, flood protection is enabled.
842 Flooding is sending too much information to the server in too
843 short of an interval, which may cause the server to terminate the
844 connection.
848 ;; Script parameters
854 "List of files to try for a startup script.
855 The first existent and readable one will get executed.
857 If the filename ends with `.el' it is presumed to be an Emacs Lisp
858 script and it gets (load)ed. Otherwise it is treated as a bunch of
859 regular IRC commands."
864 "List of directories to look for a script in /load command.
865 The script is first searched in the current directory, then in each
866 directory in the list."
871 "If non-nil, echo the IRC script commands locally."
880 "Kill the channel buffer on PART.
881 This variable should probably stay nil, as ERC can reuse buffers if
882 you rejoin them later."
887 "Kill all query (also channel) buffers of this server on QUIT.
888 See the variable `erc-kill-buffer-on-part' for details."
893 "Kill the server buffer of the process on QUIT."
898 "Alist of possible arguments to the /quit command.
900 Each element has the form:
901 (REGEXP RESULT)
903 If REGEXP matches the argument to /quit, then its relevant RESULT
904 will be used. RESULT may be either a string, or a function. If
905 a function, it should return the quit message as a string.
907 If no elements match, then the empty string is used.
909 As an example:
910 (setq erc-quit-reason-various-alist
916 as the quit message."
921 "Alist of possible arguments to the /part command.
923 Each element has the form:
924 (REGEXP RESULT)
926 If REGEXP matches the argument to /part, then its relevant RESULT
927 will be used. RESULT may be either a string, or a function. If
928 a function, it should return the part message as a string.
930 If no elements match, then the empty string is used.
932 As an example:
933 (setq erc-part-reason-various-alist
939 as the part message."
944 "A function which returns the reason for quitting.
946 The function is passed a single argument, the string typed by the
954 "A function which returns the reason for parting a channel.
956 The function is passed a single argument, the string typed by the
966 ;; variables available for IRC scripts
971 ;; Hooks
974 "Hook variables for fancy customizations of ERC."
978 "Hook run after `erc-mode' setup is finished."
984 "Put functions which should get called more or less periodically here.
985 The idea is that servers always play ping pong with the client, and so there
986 is no need for any idle-timer games with Emacs."
991 "Hook called first when some text is inserted through `erc-display-line'.
992 It gets called with one argument, STRING.
993 To be able to modify the inserted text, use `erc-insert-modify-hook' instead.
994 Filtering functions can set `erc-insert-this' to nil to avoid
995 display of that particular string at all."
1000 "Hook called first when some text is sent through `erc-send-current-line'.
1001 It gets called with one argument, STRING.
1003 To change the text that will be sent, set the variable STR which is
1004 used in `erc-send-current-line'.
1006 To change the text inserted into the buffer without changing the text
1007 that will be sent, use `erc-send-modify-hook' instead.
1009 Filtering functions can set `erc-send-this' to nil to avoid sending of
1010 that particular string at all and `erc-insert-this' to prevent
1011 inserting that particular string into the buffer.
1013 Note that it's useless to set `erc-send-this' to nil and
1014 `erc-insert-this' to t. ERC is sane enough to not insert the text
1015 anyway."
1020 "Insert the text into the target buffer or not.
1021 Functions on `erc-insert-pre-hook' can set this variable to nil
1025 "Send the text to the target or not.
1026 Functions on `erc-send-pre-hook' can set this variable to nil
1030 "Insertion hook for functions that will change the text's appearance.
1031 This hook is called just after `erc-insert-pre-hook' when the value
1032 of `erc-insert-this' is t.
1033 While this hook is run, narrowing is in effect and `current-buffer' is
1034 the buffer where the text got inserted. One possible value to add here
1035 is `erc-fill'."
1040 "This hook is called just after `erc-insert-modify-hook'.
1041 At this point, all modifications from prior hook functions are done."
1045 erc-make-read-only
1046 erc-save-buffer-in-logs))
1049 "Sending hook for functions that will change the text's appearance.
1050 This hook is called just after `erc-send-pre-hook' when the values
1051 of `erc-send-this' and `erc-insert-this' are both t.
1052 While this hook is run, narrowing is in effect and `current-buffer' is
1053 the buffer where the text got inserted.
1055 Note that no function in this hook can change the appearance of the
1056 text that is sent. Only changing the sent text's appearance on the
1057 sending user's screen is possible. One possible value to add here
1058 is `erc-fill'."
1063 "This hook is called just after `erc-send-modify-hook'.
1064 At this point, all modifications from prior hook functions are done.
1065 NOTE: The functions on this hook are called _before_ sending a command
1066 to the server.
1068 This function is called with narrowing, ala `erc-send-modify-hook'."
1078 "Hook called after a message has been parsed by ERC.
1080 The single argument to the functions is the unmodified string
1081 which the local user typed."
1084 ;; mode-specific tables
1091 ;; Make dabbrev-expand useful for nick names
1094 syntax-table)
1106 (define-key map "\C-c\C-a" 'erc-bol)
1107 (define-key map "\C-c\C-b" 'erc-iswitchb)
1108 (define-key map "\C-c\C-c" 'erc-toggle-interpret-controls)
1109 (define-key map "\C-c\C-d" 'erc-input-action)
1110 (define-key map "\C-c\C-e" 'erc-toggle-ctcp-autoresponse)
1111 (define-key map "\C-c\C-f" 'erc-toggle-flood-control)
1112 (define-key map "\C-c\C-i" 'erc-invite-only-mode)
1113 (define-key map "\C-c\C-j" 'erc-join-channel)
1114 (define-key map "\C-c\C-n" 'erc-channel-names)
1115 (define-key map "\C-c\C-o" 'erc-get-channel-mode-from-keypress)
1116 (define-key map "\C-c\C-p" 'erc-part-from-channel)
1117 (define-key map "\C-c\C-q" 'erc-quit-server)
1118 (define-key map "\C-c\C-r" 'erc-remove-text-properties-region)
1119 (define-key map "\C-c\C-t" 'erc-set-topic)
1120 (define-key map "\C-c\C-u" 'erc-kill-input)
1121 (define-key map "\C-c\C-x" 'erc-quit-server)
1125 ;; Suppress `font-lock-fontify-block' key binding since it
1126 ;; destroys face properties.
1127 (define-key map [remap font-lock-fontify-block] 'undefined)
1129 map)
1130 "ERC keymap.")
1132 ;; Faces
1134 ; Honestly, I have a horrible sense of color and the "defaults" below
1135 ; are supposed to be really bad. But colors ARE required in IRC to
1136 ; convey different parts of conversation. If you think you know better
1137 ; defaults - send them to me.
1139 ;; Now colors are a bit nicer, at least to my eyes.
1140 ;; You may still want to change them to better fit your background.-- S.B.
1142 (defgroup erc-faces nil
1143 "Faces for ERC."
1144 :group 'erc)
1146 (defface erc-default-face '((t))
1147 "ERC default face."
1148 :group 'erc-faces)
1150 (defface erc-nick-prefix-face '((t :inherit erc-nick-default-face :weight bold))
1151 "ERC face used for user mode prefix."
1152 :group 'erc-faces)
1154 (defface erc-my-nick-prefix-face '((t :inherit erc-nick-default-face :weight bold))
1155 "ERC face used for my user mode prefix."
1156 :group 'erc-faces)
1158 (defface erc-direct-msg-face '((t :foreground "IndianRed"))
1159 "ERC face used for messages you receive in the main erc buffer."
1160 :group 'erc-faces)
1162 (defface erc-header-line
1163 '((t :foreground "grey20" :background "grey90"))
1164 "ERC face used for the header line.
1166 This will only be used if `erc-header-line-face-method' is non-nil."
1167 :group 'erc-faces)
1169 (defface erc-input-face '((t :foreground "brown"))
1170 "ERC face used for your input."
1171 :group 'erc-faces)
1173 (defface erc-prompt-face
1174 '((t :weight bold :foreground "Black" :background "lightBlue2"))
1175 "ERC face for the prompt."
1176 :group 'erc-faces)
1178 (defface erc-command-indicator-face
1179 '((t :weight bold))
1180 "ERC face for the command indicator.
1181 See the variable `erc-command-indicator'."
1182 :group 'erc-faces)
1184 (defface erc-notice-face
1185 '((default :weight bold)
1186 (((class color) (min-colors 88)) :foreground "SlateBlue")
1187 (t :foreground "blue"))
1188 "ERC face for notices."
1189 :group 'erc-faces)
1191 (defface erc-action-face '((t :weight bold))
1192 "ERC face for actions generated by /ME."
1193 :group 'erc-faces)
1195 (defface erc-error-face '((t :foreground "red"))
1196 "ERC face for errors."
1197 :group 'erc-faces)
1199 ;; same default color as `erc-input-face'
1200 (defface erc-my-nick-face '((t :weight bold :foreground "brown"))
1201 "ERC face for your current nickname in messages sent by you.
1202 See also `erc-show-my-nick'."
1203 :group 'erc-faces)
1205 (defface erc-nick-default-face '((t :weight bold))
1206 "ERC nickname default face."
1207 :group 'erc-faces)
1209 (defface erc-nick-msg-face '((t :weight bold :foreground "IndianRed"))
1210 "ERC nickname face for private messages."
1211 :group 'erc-faces)
1213 ;; Debugging support
1215 (defvar erc-log-p nil
1216 "When set to t, generate debug messages in a separate debug buffer.")
1218 (defvar erc-debug-log-file (expand-file-name "ERC.debug")
1219 "Debug log file name.")
1221 (defvar erc-dbuf nil)
1222 (make-variable-buffer-local 'erc-dbuf)
1224 (defmacro define-erc-module (name alias doc enable-body disable-body
1225 &optional local-p)
1226 "Define a new minor mode using ERC conventions.
1227 Symbol NAME is the name of the module.
1228 Symbol ALIAS is the alias to use, or nil.
1229 DOC is the documentation string to use for the minor mode.
1230 ENABLE-BODY is a list of expressions used to enable the mode.
1231 DISABLE-BODY is a list of expressions used to disable the mode.
1232 If LOCAL-P is non-nil, the mode will be created as a buffer-local
1233 mode, rather than a global one.
1235 This will define a minor mode called erc-NAME-mode, possibly
1236 an alias erc-ALIAS-mode, as well as the helper functions
1237 erc-NAME-enable, and erc-NAME-disable.
1239 Example:
1242 (define-erc-module replace nil
1244 ((add-hook 'erc-insert-modify-hook
1245 'erc-replace-insert))
1246 ((remove-hook 'erc-insert-modify-hook
1247 'erc-replace-insert)))"
1248 (declare (doc-string 3))
1249 (let* ((sn (symbol-name name))
1250 (mode (intern (format "erc-%s-mode" (downcase sn))))
1251 (group (intern (format "erc-%s" (downcase sn))))
1252 (enable (intern (format "erc-%s-enable" (downcase sn))))
1253 (disable (intern (format "erc-%s-disable" (downcase sn)))))
1254 `(progn
1255 (erc-define-minor-mode
1256 ,mode
1257 ,(format "Toggle ERC %S mode.
1258 With a prefix argument ARG, enable %s if ARG is positive,
1259 and disable it otherwise. If called from Lisp, enable the mode
1260 if ARG is omitted or nil.
1261 %s" name name doc)
1262 nil nil nil
1263 :global ,(not local-p) :group (quote ,group)
1264 (if ,mode
1265 (,enable)
1266 (,disable)))
1267 (defun ,enable ()
1268 ,(format "Enable ERC %S mode."
1269 name)
1270 (interactive)
1271 (add-to-list 'erc-modules (quote ,name))
1272 (setq ,mode t)
1273 ,@enable-body)
1274 (defun ,disable ()
1275 ,(format "Disable ERC %S mode."
1276 name)
1277 (interactive)
1278 (setq erc-modules (delq (quote ,name) erc-modules))
1279 (setq ,mode nil)
1280 ,@disable-body)
1281 ,(when (and alias (not (eq name alias)))
1282 `(defalias
1283 (quote
1284 ,(intern
1285 (format "erc-%s-mode"
1286 (downcase (symbol-name alias)))))
1287 (quote
1288 ,mode)))
1289 ;; For find-function and find-variable.
1290 (put ',mode 'definition-name ',name)
1291 (put ',enable 'definition-name ',name)
1292 (put ',disable 'definition-name ',name))))
1294 (defun erc-once-with-server-event (event f)
1295 "Run function F the next time EVENT occurs in the `current-buffer'.
1297 You should make sure that `current-buffer' is a server buffer.
1299 This function temporarily adds a function to EVENT's hook to call F with
1300 two arguments (`proc' and `parsed'). After F is called, the function is
1301 removed from EVENT's hook. F should return either nil
1302 or t, where nil indicates that the other functions on EVENT's hook
1303 should be run too, and t indicates that other functions should
1304 not be run.
1306 Please be sure to use this function in server-buffers. In
1307 channel-buffers it may not work at all, as it uses the LOCAL
1308 argument of `add-hook' and `remove-hook' to ensure multiserver
1309 capabilities."
1310 (unless (erc-server-buffer-p)
1311 (error
1312 "You should only run `erc-once-with-server-event' in a server buffer"))
1313 (let ((fun (make-symbol "fun"))
1314 (hook (erc-get-hook event)))
1315 (put fun 'erc-original-buffer (current-buffer))
1316 (fset fun (lambda (proc parsed)
1317 (with-current-buffer (get fun 'erc-original-buffer)
1318 (remove-hook hook fun t))
1319 (fmakunbound fun)
1320 (funcall f proc parsed)))
1321 (add-hook hook fun nil t)
1322 fun))
1324 (defsubst erc-log (string)
1325 "Logs STRING if logging is on (see `erc-log-p')."
1326 (when erc-log-p
1327 (erc-log-aux string)))
1329 (defun erc-server-buffer ()
1330 "Return the server buffer for the current buffer's process.
1331 The buffer-local variable `erc-server-process' is used to find
1332 the process buffer."
1333 (and (erc-server-buffer-live-p)
1334 (process-buffer erc-server-process)))
1336 (defun erc-server-buffer-live-p ()
1337 "Return t if the server buffer has not been killed."
1338 (and (processp erc-server-process)
1339 (buffer-live-p (process-buffer erc-server-process))))
1341 (defun erc-server-buffer-p (&optional buffer)
1342 "Return non-nil if argument BUFFER is an ERC server buffer.
1344 If BUFFER is nil, the current buffer is used."
1345 (with-current-buffer (or buffer (current-buffer))
1346 (and (eq major-mode 'erc-mode)
1347 (null (erc-default-target)))))
1349 (defun erc-open-server-buffer-p (&optional buffer)
1350 "Return non-nil if argument BUFFER is an ERC server buffer that
1351 has an open IRC process.
1353 If BUFFER is nil, the current buffer is used."
1354 (and (erc-server-buffer-p buffer)
1355 (erc-server-process-alive buffer)))
1357 (defun erc-query-buffer-p (&optional buffer)
1358 "Return non-nil if BUFFER is an ERC query buffer.
1359 If BUFFER is nil, the current buffer is used."
1360 (with-current-buffer (or buffer (current-buffer))
1361 (let ((target (erc-default-target)))
1362 (and (eq major-mode 'erc-mode)
1363 target
1364 (not (memq (aref target 0) '(?# ?& ?+ ?!)))))))
1366 (defun erc-ison-p (nick)
1367 "Return non-nil if NICK is online."
1368 (interactive "sNick: ")
1369 (erc-with-server-buffer
1370 (let ((erc-online-p 'unknown))
1371 (erc-once-with-server-event
1372 303
1373 (lambda (_proc parsed)
1374 (let ((ison (split-string (aref parsed 3))))
1375 (setq erc-online-p (car (erc-member-ignore-case nick ison)))
1376 t)))
1377 (erc-server-send (format "ISON %s" nick))
1378 (while (eq erc-online-p 'unknown) (accept-process-output))
1379 (if (called-interactively-p 'interactive)
1380 (message "%s is %sonline"
1381 (or erc-online-p nick)
1382 (if erc-online-p "" "not "))
1383 erc-online-p))))
1385 (defun erc-log-aux (string)
1386 "Do the debug logging of STRING."
1387 (let ((cb (current-buffer))
1388 (point 1)
1389 (was-eob nil)
1390 (session-buffer (erc-server-buffer)))
1391 (if session-buffer
1392 (progn
1393 (set-buffer session-buffer)
1394 (if (not (and erc-dbuf (bufferp erc-dbuf) (buffer-live-p erc-dbuf)))
1395 (progn
1396 (setq erc-dbuf (get-buffer-create
1397 (concat "*ERC-DEBUG: "
1398 erc-session-server "*")))))
1399 (set-buffer erc-dbuf)
1400 (setq point (point))
1401 (setq was-eob (eobp))
1402 (goto-char (point-max))
1404 (if was-eob (goto-char (point-max))
1405 (goto-char point))
1406 (set-buffer cb))
1407 (message "ERC: ** %s" string))))
1409 ;; Last active buffer, to print server messages in the right place
1411 (defvar erc-active-buffer nil
1412 "The current active buffer, the one where the user typed the last command.
1413 Defaults to the server buffer, and should only be set in the
1414 server buffer.")
1415 (make-variable-buffer-local 'erc-active-buffer)
1417 (defun erc-active-buffer ()
1418 "Return the value of `erc-active-buffer' for the current server.
1419 Defaults to the server buffer."
1420 (erc-with-server-buffer
1421 (if (buffer-live-p erc-active-buffer)
1422 erc-active-buffer
1423 (setq erc-active-buffer (current-buffer)))))
1425 (defun erc-set-active-buffer (buffer)
1426 "Set the value of `erc-active-buffer' to BUFFER."
1427 (cond ((erc-server-buffer)
1428 (with-current-buffer (erc-server-buffer)
1429 (setq erc-active-buffer buffer)))
1430 (t (setq erc-active-buffer buffer))))
1432 ;; Mode activation routines
1434 (define-derived-mode erc-mode fundamental-mode "ERC"
1435 "Major mode for Emacs IRC."
1436 (setq local-abbrev-table erc-mode-abbrev-table)
1437 (when (boundp 'next-line-add-newlines)
1438 (set (make-local-variable 'next-line-add-newlines) nil))
1439 (setq line-move-ignore-invisible t)
1440 (set (make-local-variable 'paragraph-separate)
1442 (set (make-local-variable 'paragraph-start)
1444 (add-hook 'completion-at-point-functions 'erc-complete-word-at-point nil t))
1446 ;; activation
1448 (defconst erc-default-server "irc.freenode.net"
1449 "IRC server to use if it cannot be detected otherwise.")
1451 (defconst erc-default-port 6667
1452 "IRC port to use if it cannot be detected otherwise.")
1454 (defcustom erc-join-buffer 'buffer
1455 "Determines how to display a newly created IRC buffer.
1457 The available choices are:
1459 'window - in another window,
1460 'window-noselect - in another window, but don't select that one,
1461 'frame - in another frame,
1462 'bury - bury it in a new buffer,
1463 'buffer - in place of the current buffer,
1464 any other value - in place of the current buffer."
1465 :group 'erc-buffers
1466 :type '(choice (const :tag "Split window and select" window)
1467 (const :tag "Split window, don't select" window-noselect)
1468 (const :tag "New frame" frame)
1469 (const :tag "Bury in new buffer" bury)
1470 (const :tag "Use current buffer" buffer)
1471 (const :tag "Use current buffer" t)))
1473 (defcustom erc-frame-alist nil
1474 "Alist of frame parameters for creating erc frames.
1475 A value of nil means to use `default-frame-alist'."
1476 :group 'erc-buffers
1477 :type '(repeat (cons :format "%v"
1478 (symbol :tag "Parameter")
1479 (sexp :tag "Value"))))
1481 (defcustom erc-frame-dedicated-flag nil
1482 "Non-nil means the erc frames are dedicated to that buffer.
1483 This only has effect when `erc-join-buffer' is set to `frame'."
1484 :group 'erc-buffers
1485 :type 'boolean)
1487 (defcustom erc-reuse-frames t
1488 "Determines whether new frames are always created.
1489 Non-nil means that a new frame is not created to display an ERC
1490 buffer if there is already a window displaying it. This only has
1491 effect when `erc-join-buffer' is set to `frame'."
1492 :group 'erc-buffers
1493 :type 'boolean)
1495 (defun erc-channel-p (channel)
1496 "Return non-nil if CHANNEL seems to be an IRC channel name."
1497 (cond ((stringp channel)
1498 (memq (aref channel 0) '(?# ?& ?+ ?!)))
1499 ((and (bufferp channel) (buffer-live-p channel))
1500 (with-current-buffer channel
1501 (erc-channel-p (erc-default-target))))
1502 (t nil)))
1504 (defcustom erc-reuse-buffers t
1505 "If nil, create new buffers on joining a channel/query.
1506 If non-nil, a new buffer will only be created when you join
1507 channels with same names on different servers, or have query buffers
1508 open with nicks of the same name on different servers. Otherwise,
1509 the existing buffers will be reused."
1510 :group 'erc-buffers
1511 :type 'boolean)
1513 (defun erc-normalize-port (port)
1514 "Normalize the port specification PORT to integer form.
1515 PORT may be an integer, a string or a symbol. If it is a string or a
1516 symbol, it may have these values:
1517 * irc -> 194
1518 * ircs -> 994
1519 * ircd -> 6667
1520 * ircd-dalnet -> 7000"
1521 (cond
1522 ((symbolp port)
1523 (erc-normalize-port (symbol-name port)))
1524 ((stringp port)
1525 (let ((port-nr (string-to-number port)))
1526 (cond
1527 ((> port-nr 0)
1528 port-nr)
1529 ((string-equal port "irc")
1530 194)
1531 ((string-equal port "ircs")
1532 994)
1533 ((string-equal port "ircd")
1534 6667)
1535 ((string-equal port "ircd-dalnet")
1536 7000)
1537 (t
1538 nil))))
1539 ((numberp port)
1540 port)
1541 (t
1542 nil)))
1544 (defun erc-port-equal (a b)
1545 "Check whether ports A and B are equal."
1546 (= (erc-normalize-port a) (erc-normalize-port b)))
1548 (defun erc-generate-new-buffer-name (server port target)
1549 "Create a new buffer name based on the arguments."
1550 (when (numberp port) (setq port (number-to-string port)))
1551 (let ((buf-name (or target
1552 (or (let ((name (concat server ":" port)))
1553 (when (> (length name) 1)
1554 name))
1555 ;; This fallback should in fact never happen
1556 "*erc-server-buffer*")))
1557 buffer-name)
1558 ;; Reuse existing buffers, but not if the buffer is a connected server
1559 ;; buffer and not if its associated with a different server than the
1560 ;; current ERC buffer.
1561 ;; if buf-name is taken by a different connection (or by something !erc)
1562 ;; then see if "buf-name/server" meets the same criteria
1563 (dolist (candidate (list buf-name (concat buf-name "/" server)))
1564 (if (and (not buffer-name)
1565 erc-reuse-buffers
1566 (get-buffer candidate)
1567 (or target
1568 (with-current-buffer (get-buffer candidate)
1569 (and (erc-server-buffer-p)
1570 (not (erc-server-process-alive)))))
1571 (with-current-buffer (get-buffer candidate)
1572 (and (string= erc-session-server server)
1573 (erc-port-equal erc-session-port port))))
1574 (setq buffer-name candidate)))
1575 ;; if buffer-name is unset, neither candidate worked out for us,
1576 ;; fallback to the old <N> uniquification method:
1577 (or buffer-name (generate-new-buffer-name buf-name)) ))
1579 (defun erc-get-buffer-create (server port target)
1580 "Create a new buffer based on the arguments."
1581 (get-buffer-create (erc-generate-new-buffer-name server port target)))
1584 (defun erc-member-ignore-case (string list)
1585 "Return non-nil if STRING is a member of LIST.
1587 All strings are compared according to IRC protocol case rules, see
1588 `erc-downcase'."
1589 (setq string (erc-downcase string))
1590 (catch 'result
1591 (while list
1592 (if (string= string (erc-downcase (car list)))
1593 (throw 'result list)
1594 (setq list (cdr list))))))
1596 (defmacro erc-with-buffer (spec &rest body)
1597 "Execute BODY in the buffer associated with SPEC.
1599 SPEC should have the form
1601 (TARGET [PROCESS])
1603 If TARGET is a buffer, use it. Otherwise, use the buffer
1604 matching TARGET in the process specified by PROCESS.
1606 If PROCESS is nil, use the current `erc-server-process'.
1607 See `erc-get-buffer' for details.
1609 See also `with-current-buffer'.
1611 \(fn (TARGET [PROCESS]) BODY...)"
1612 (declare (indent 1) (debug ((form &optional form) body)))
1613 (let ((buf (make-symbol "buf"))
1614 (proc (make-symbol "proc"))
1615 (target (make-symbol "target"))
1616 (process (make-symbol "process")))
1617 `(let* ((,target ,(car spec))
1618 (,process ,(cadr spec))
1619 (,buf (if (bufferp ,target)
1620 ,target
1621 (let ((,proc (or ,process
1622 (and (processp erc-server-process)
1623 erc-server-process))))
1624 (if (and ,target ,proc)
1625 (erc-get-buffer ,target ,proc))))))
1626 (when (buffer-live-p ,buf)
1627 (with-current-buffer ,buf
1628 ,@body)))))
1630 (defun erc-get-buffer (target &optional proc)
1631 "Return the buffer matching TARGET in the process PROC.
1632 If PROC is not supplied, all processes are searched."
1633 (let ((downcased-target (erc-downcase target)))
1634 (catch 'buffer
1635 (erc-buffer-filter
1636 (lambda ()
1637 (let ((current (erc-default-target)))
1638 (and (stringp current)
1639 (string-equal downcased-target (erc-downcase current))
1640 (throw 'buffer (current-buffer)))))
1641 proc))))
1643 (defun erc-buffer-filter (predicate &optional proc)
1644 "Return a list of `erc-mode' buffers matching certain criteria.
1645 PREDICATE is a function executed with each buffer, if it returns t, that buffer
1646 is considered a valid match.
1648 PROC is either an `erc-server-process', identifying a certain
1649 server connection, or nil which means all open connections."
1650 (save-excursion
1651 (delq
1652 nil
1653 (mapcar (lambda (buf)
1654 (when (buffer-live-p buf)
1655 (with-current-buffer buf
1656 (and (eq major-mode 'erc-mode)
1657 (or (not proc)
1658 (eq proc erc-server-process))
1659 (funcall predicate)
1660 buf))))
1661 (buffer-list)))))
1663 (defun erc-buffer-list (&optional predicate proc)
1664 "Return a list of ERC buffers.
1665 PREDICATE is a function which executes with every buffer satisfying
1666 the predicate. If PREDICATE is passed as nil, return a list of all ERC
1667 buffers. If PROC is given, the buffers local variable `erc-server-process'
1668 needs to match PROC."
1669 (unless predicate
1670 (setq predicate (lambda () t)))
1671 (erc-buffer-filter predicate proc))
1673 (defmacro erc-with-all-buffers-of-server (process pred &rest forms)
1674 "Execute FORMS in all buffers which have same process as this server.
1675 FORMS will be evaluated in all buffers having the process PROCESS and
1676 where PRED matches or in all buffers of the server process if PRED is
1677 nil."
1678 (declare (indent 1) (debug (form form body)))
1679 ;; Make the evaluation have the correct order
1680 (let ((pre (make-symbol "pre"))
1681 (pro (make-symbol "pro")))
1682 `(let* ((,pro ,process)
1683 (,pre ,pred)
1684 (res (mapcar (lambda (buffer)
1685 (with-current-buffer buffer
1686 ,@forms))
1687 (erc-buffer-list ,pre
1688 ,pro))))
1689 ;; Silence the byte-compiler by binding the result of mapcar to
1690 ;; a variable.
1691 res)))
1693 ;; (iswitchb-mode) will autoload iswitchb.el
1694 (defvar iswitchb-temp-buflist)
1695 (declare-function iswitchb-read-buffer "iswitchb"
1696 (prompt &optional default require-match start matches-set))
1697 (defvar iswitchb-make-buflist-hook)
1699 (defun erc-iswitchb (&optional arg)
1700 "Use `iswitchb-read-buffer' to prompt for a ERC buffer to switch to.
1701 When invoked with prefix argument, use all erc buffers. Without prefix
1702 ARG, allow only buffers related to same session server.
1703 If `erc-track-mode' is in enabled, put the last element of
1704 `erc-modified-channels-alist' in front of the buffer list.
1706 Due to some yet unresolved reason, global function `iswitchb-mode'
1707 needs to be active for this function to work."
1708 (interactive "P")
1709 (let ((enabled (bound-and-true-p iswitchb-mode)))
1710 (or enabled (iswitchb-mode 1))
1711 (unwind-protect
1712 (let ((iswitchb-make-buflist-hook
1713 (lambda ()
1714 (setq iswitchb-temp-buflist
1715 (mapcar 'buffer-name
1716 (erc-buffer-list
1717 nil
1718 (when arg erc-server-process)))))))
1719 (switch-to-buffer
1720 (iswitchb-read-buffer
1721 "Switch-to: "
1722 (if (boundp 'erc-modified-channels-alist)
1723 (buffer-name (caar (last erc-modified-channels-alist)))
1724 nil)
1725 t)))
1726 (or enabled (iswitchb-mode -1)))))
1728 (defun erc-channel-list (proc)
1729 "Return a list of channel buffers.
1730 PROC is the process for the server connection. If PROC is nil, return
1731 all channel buffers on all servers."
1732 (erc-buffer-filter
1733 (lambda ()
1734 (and (erc-default-target)
1735 (erc-channel-p (erc-default-target))))
1736 proc))
1738 (defun erc-buffer-list-with-nick (nick proc)
1739 "Return buffers containing NICK in the `erc-channel-users' list."
1740 (with-current-buffer (process-buffer proc)
1741 (let ((user (gethash (erc-downcase nick) erc-server-users)))
1742 (if user
1743 (erc-server-user-buffers user)
1744 nil))))
1746 ;; Some local variables
1748 (defvar erc-default-recipients nil
1749 "List of default recipients of the current buffer.")
1750 (make-variable-buffer-local 'erc-default-recipients)
1752 (defvar erc-session-user-full-name nil
1753 "Full name of the user on the current server.")
1754 (make-variable-buffer-local 'erc-session-user-full-name)
1756 (defvar erc-channel-user-limit nil
1757 "Limit of users per channel.")
1758 (make-variable-buffer-local 'erc-channel-user-limit)
1760 (defvar erc-channel-key nil
1761 "Key needed to join channel.")
1762 (make-variable-buffer-local 'erc-channel-key)
1764 (defvar erc-invitation nil
1765 "Last invitation channel.")
1766 (make-variable-buffer-local 'erc-invitation)
1768 (defvar erc-away nil
1769 "Non-nil indicates that we are away.
1771 Use `erc-away-time' to access this if you might be in a channel
1772 buffer rather than a server buffer.")
1773 (make-variable-buffer-local 'erc-away)
1775 (defvar erc-channel-list nil
1776 "Server channel list.")
1777 (make-variable-buffer-local 'erc-channel-list)
1779 (defvar erc-bad-nick nil
1780 "Non-nil indicates that we got a `nick in use' error while connecting.")
1781 (make-variable-buffer-local 'erc-bad-nick)
1783 (defvar erc-logged-in nil
1784 "Non-nil indicates that we are logged in.")
1785 (make-variable-buffer-local 'erc-logged-in)
1787 (defvar erc-default-nicks nil
1788 "The local copy of `erc-nick' - the list of nicks to choose from.")
1789 (make-variable-buffer-local 'erc-default-nicks)
1791 (defvar erc-nick-change-attempt-count 0
1792 "Used to keep track of how many times an attempt at changing nick is made.")
1793 (make-variable-buffer-local 'erc-nick-change-attempt-count)
1795 (defun erc-migrate-modules (mods)
1796 "Migrate old names of ERC modules to new ones."
1797 ;; modify `transforms' to specify what needs to be changed
1798 ;; each item is in the format '(old . new)
1799 (let ((transforms '((pcomplete . completion))))
1800 (erc-delete-dups
1801 (mapcar (lambda (m) (or (cdr (assoc m transforms)) m))
1802 mods))))
1804 (defcustom erc-modules '(netsplit fill button match track completion readonly
1805 networks ring autojoin noncommands irccontrols
1806 move-to-prompt stamp menu list)
1807 "A list of modules which ERC should enable.
1808 If you set the value of this without using `customize' remember to call
1809 \(erc-update-modules) after you change it. When using `customize', modules
1810 removed from the list will be disabled."
1811 :get (lambda (sym)
1812 ;; replace outdated names with their newer equivalents
1813 (erc-migrate-modules (symbol-value sym)))
1814 :set (lambda (sym val)
1815 ;; disable modules which have just been removed
1816 (when (and (boundp 'erc-modules) erc-modules val)
1817 (dolist (module erc-modules)
1818 (unless (member module val)
1819 (let ((f (intern-soft (format "erc-%s-mode" module))))
1820 (when (and (fboundp f) (boundp f) (symbol-value f))
1821 (message "Disabling `erc-%s'" module)
1822 (funcall f 0))))))
1823 (set sym val)
1824 ;; this test is for the case where erc hasn't been loaded yet
1825 (when (fboundp 'erc-update-modules)
1826 (erc-update-modules)))
1827 :type
1828 '(set
1829 :greedy t
1830 (const :tag "autoaway: Set away status automatically" autoaway)
1831 (const :tag "autojoin: Join channels automatically" autojoin)
1832 (const :tag "button: Buttonize URLs, nicknames, and other text" button)
1833 (const :tag "capab: Mark unidentified users on servers supporting CAPAB"
1834 capab-identify)
1835 (const :tag "completion: Complete nicknames and commands (programmable)"
1836 completion)
1837 (const :tag "hecomplete: Complete nicknames and commands (obsolete, use \"completion\")" hecomplete)
1838 (const :tag "dcc: Provide Direct Client-to-Client support" dcc)
1839 (const :tag "fill: Wrap long lines" fill)
1840 (const :tag "identd: Launch an identd server on port 8113" identd)
1841 (const :tag "irccontrols: Highlight or remove IRC control characters"
1842 irccontrols)
1843 (const :tag "keep-place: Leave point above un-viewed text" keep-place)
1844 (const :tag "list: List channels in a separate buffer" list)
1845 (const :tag "log: Save buffers in logs" log)
1846 (const :tag "match: Highlight pals, fools, and other keywords" match)
1847 (const :tag "menu: Display a menu in ERC buffers" menu)
1848 (const :tag "move-to-prompt: Move to the prompt when typing text"
1849 move-to-prompt)
1850 (const :tag "netsplit: Detect netsplits" netsplit)
1851 (const :tag "networks: Provide data about IRC networks" networks)
1852 (const :tag "noncommands: Don't display non-IRC commands after evaluation"
1853 noncommands)
1854 (const :tag
1855 "notify: Notify when the online status of certain users changes"
1856 notify)
1857 (const :tag "notifications: Send notifications on PRIVMSG or nickname mentions"
1858 notifications)
1859 (const :tag "page: Process CTCP PAGE requests from IRC" page)
1860 (const :tag "readonly: Make displayed lines read-only" readonly)
1861 (const :tag "replace: Replace text in messages" replace)
1862 (const :tag "ring: Enable an input history" ring)
1863 (const :tag "scrolltobottom: Scroll to the bottom of the buffer"
1864 scrolltobottom)
1865 (const :tag "services: Identify to Nickserv (IRC Services) automatically"
1866 services)
1867 (const :tag "smiley: Convert smileys to pretty icons" smiley)
1868 (const :tag "sound: Play sounds when you receive CTCP SOUND requests"
1869 sound)
1870 (const :tag "stamp: Add timestamps to messages" stamp)
1871 (const :tag "spelling: Check spelling" spelling)
1872 (const :tag "track: Track channel activity in the mode-line" track)
1873 (const :tag "truncate: Truncate buffers to a certain size" truncate)
1874 (const :tag "unmorse: Translate morse code in messages" unmorse)
1875 (const :tag "xdcc: Act as an XDCC file-server" xdcc)
1876 (repeat :tag "Others" :inline t symbol))
1877 :group 'erc)
1879 (defun erc-update-modules ()
1880 "Run this to enable erc-foo-mode for all modules in `erc-modules'."
1881 (let (req)
1882 (dolist (mod erc-modules)
1883 (setq req (concat "erc-" (symbol-name mod)))
1884 (cond
1885 ;; yuck. perhaps we should bring the filenames into sync?
1886 ((string= req "erc-capab-identify")
1887 (setq req "erc-capab"))
1888 ((string= req "erc-completion")
1889 (setq req "erc-pcomplete"))
1890 ((string= req "erc-pcomplete")
1891 (setq mod 'completion))
1892 ((string= req "erc-autojoin")
1893 (setq req "erc-join")))
1894 (condition-case nil
1895 (require (intern req))
1896 (error nil))
1897 (let ((sym (intern-soft (concat "erc-" (symbol-name mod) "-mode"))))
1898 (if (fboundp sym)
1899 (funcall sym 1)
1900 (error "`%s' is not a known ERC module" mod))))))
1902 (defun erc-setup-buffer (buffer)
1903 "Consults `erc-join-buffer' to find out how to display `BUFFER'."
1904 (pcase erc-join-buffer
1905 (`window
1906 (if (active-minibuffer-window)
1907 (display-buffer buffer)
1908 (switch-to-buffer-other-window buffer)))
1909 (`window-noselect
1910 (display-buffer buffer))
1911 (`bury
1912 nil)
1913 (`frame
1914 (when (or (not erc-reuse-frames)
1915 (not (get-buffer-window buffer t)))
1916 (let ((frame (make-frame (or erc-frame-alist
1917 default-frame-alist))))
1918 (raise-frame frame)
1919 (select-frame frame))
1920 (switch-to-buffer buffer)
1921 (when erc-frame-dedicated-flag
1922 (set-window-dedicated-p (selected-window) t))))
1923 (_
1924 (if (active-minibuffer-window)
1925 (display-buffer buffer)
1926 (switch-to-buffer buffer)))))
1928 (defun erc-open (&optional server port nick full-name
1929 connect passwd tgt-list channel process)
1930 "Connect to SERVER on PORT as NICK with FULL-NAME.
1932 If CONNECT is non-nil, connect to the server. Otherwise assume
1933 already connected and just create a separate buffer for the new
1934 target CHANNEL.
1936 Use PASSWD as user password on the server. If TGT-LIST is
1937 non-nil, use it to initialize `erc-default-recipients'.
1939 Returns the buffer for the given server or channel."
1940 (let ((server-announced-name (when (and (boundp 'erc-session-server)
1941 (string= server erc-session-server))
1942 erc-server-announced-name))
1943 (connected-p (unless connect erc-server-connected))
1944 (buffer (erc-get-buffer-create server port channel))
1945 (old-buffer (current-buffer))
1946 old-point
1947 continued-session)
1948 (when connect (run-hook-with-args 'erc-before-connect server port nick))
1949 (erc-update-modules)
1950 (set-buffer buffer)
1951 (setq old-point (point))
1952 (erc-mode)
1953 (setq erc-server-announced-name server-announced-name)
1954 (setq erc-server-connected connected-p)
1955 ;; connection parameters
1956 (setq erc-server-process process)
1957 (setq erc-insert-marker (make-marker))
1958 (setq erc-input-marker (make-marker))
1959 ;; go to the end of the buffer and open a new line
1960 ;; (the buffer may have existed)
1961 (goto-char (point-max))
1962 (forward-line 0)
1963 (when (get-text-property (point) 'erc-prompt)
1964 (setq continued-session t)
1965 (set-marker erc-input-marker
1966 (or (next-single-property-change (point) 'erc-prompt)
1967 (point-max))))
1968 (unless continued-session
1969 (goto-char (point-max))
1971 (set-marker erc-insert-marker (point))
1972 ;; stack of default recipients
1973 (setq erc-default-recipients tgt-list)
1974 (setq erc-server-current-nick nil)
1975 ;; Initialize erc-server-users and erc-channel-users
1976 (if connect
1977 (progn ;; server buffer
1978 (setq erc-server-users
1979 (make-hash-table :test 'equal))
1980 (setq erc-channel-users nil))
1981 (progn ;; target buffer
1982 (setq erc-server-users nil)
1983 (setq erc-channel-users
1984 (make-hash-table :test 'equal))))
1985 ;; clear last incomplete line read
1986 (setq erc-server-filter-data nil)
1987 (setq erc-channel-topic "")
1988 ;; limit on the number of users on the channel (mode +l)
1989 (setq erc-channel-user-limit nil)
1990 (setq erc-channel-key nil)
1991 ;; last active buffer, defaults to this one
1992 (erc-set-active-buffer buffer)
1993 ;; last invitation channel
1994 (setq erc-invitation nil)
1995 ;; Server channel list
1996 (setq erc-channel-list ())
1997 ;; login-time 'nick in use' error
1998 (setq erc-bad-nick nil)
1999 ;; whether we have logged in
2000 (setq erc-logged-in nil)
2001 ;; The local copy of `erc-nick' - the list of nicks to choose
2002 (setq erc-default-nicks (if (consp erc-nick) erc-nick (list erc-nick)))
2003 ;; password stuff
2004 (setq erc-session-password
2005 (or passwd
2006 (let ((secret
2007 (plist-get
2008 (nth 0
2009 (auth-source-search :host server
2010 :max 1
2011 :user nick
2012 :port port
2013 :require '(:secret)))
2014 :secret)))
2015 (if (functionp secret)
2016 (funcall secret)
2017 secret))))
2018 ;; debug output buffer
2019 (setq erc-dbuf
2020 (when erc-log-p
2021 (get-buffer-create (concat "*ERC-DEBUG: " server "*"))))
2022 ;; set up prompt
2023 (unless continued-session
2024 (goto-char (point-max))
2026 (if continued-session
2027 (goto-char old-point)
2028 (set-marker erc-insert-marker (point))
2029 (erc-display-prompt)
2030 (goto-char (point-max)))
2032 (erc-determine-parameters server port nick full-name)
2034 ;; Saving log file on exit
2035 (run-hook-with-args 'erc-connect-pre-hook buffer)
2037 (when connect
2038 (erc-server-connect erc-session-server erc-session-port buffer))
2039 (erc-update-mode-line)
2041 ;; Now display the buffer in a window as per user wishes.
2042 (unless (eq buffer old-buffer)
2043 (when erc-log-p
2044 ;; we can't log to debug buffer, it may not exist yet
2045 (message "erc: old buffer %s, switching to %s"
2046 old-buffer buffer))
2047 (erc-setup-buffer buffer))
2049 buffer))
2051 (defun erc-initialize-log-marker (buffer)
2052 "Initialize the `erc-last-saved-position' marker to a sensible position.
2053 BUFFER is the current buffer."
2054 (with-current-buffer buffer
2055 (setq erc-last-saved-position (make-marker))
2056 (move-marker erc-last-saved-position
2057 (1- (marker-position erc-insert-marker)))))
2059 ;; interactive startup
2061 (defvar erc-server-history-list nil
2062 "IRC server interactive selection history list.")
2064 (defvar erc-nick-history-list nil
2065 "Nickname interactive selection history list.")
2067 (defun erc-already-logged-in (server port nick)
2068 "Return the buffers corresponding to a NICK on PORT of a session SERVER.
2069 This is determined by looking for the appropriate buffer and checking
2070 whether the connection is still alive.
2071 If no buffer matches, return nil."
2072 (erc-buffer-list
2073 (lambda ()
2074 (and (erc-server-process-alive)
2075 (string= erc-session-server server)
2076 (erc-port-equal erc-session-port port)
2077 (erc-current-nick-p nick)))))
2079 (defcustom erc-before-connect nil
2080 "Hook called before connecting to a server.
2081 This hook gets executed before `erc' actually invokes `erc-mode'
2082 with your input data. The functions in here get called with three
2083 parameters, SERVER, PORT and NICK."
2084 :group 'erc-hooks
2085 :type 'hook)
2087 (defcustom erc-after-connect nil
2088 "Hook called after connecting to a server.
2089 This hook gets executed when an end of MOTD has been received. All
2090 functions in here get called with the parameters SERVER and NICK."
2091 :group 'erc-hooks
2092 :type 'hook)
2094 ;;;###autoload
2095 (defun erc-select-read-args ()
2096 "Prompt the user for values of nick, server, port, and password."
2097 (let (user-input server port nick passwd)
2098 (setq user-input (read-from-minibuffer
2099 "IRC server: "
2100 (erc-compute-server) nil nil 'erc-server-history-list))
2103 (setq port (erc-string-to-port (match-string 2 user-input))
2104 user-input (match-string 1 user-input))
2105 (setq port
2106 (erc-string-to-port (read-from-minibuffer
2107 "IRC port: " (erc-port-to-string
2108 (erc-compute-port))))))
2111 (setq nick (match-string 1 user-input)
2112 user-input (match-string 2 user-input))
2113 (setq nick
2114 (if (erc-already-logged-in server port nick)
2115 (read-from-minibuffer
2116 (erc-format-message 'nick-in-use ?n nick)
2117 nick
2118 nil nil 'erc-nick-history-list)
2119 (read-from-minibuffer
2120 "Nickname: " (erc-compute-nick nick)
2121 nil nil 'erc-nick-history-list))))
2123 (setq server user-input)
2125 (setq passwd (if erc-prompt-for-password
2126 (if (and erc-password
2127 (y-or-n-p "Use the default password? "))
2128 erc-password
2129 (read-passwd "Password: "))
2130 erc-password))
2131 (when (and passwd (string= "" passwd))
2132 (setq passwd nil))
2134 (while (erc-already-logged-in server port nick)
2135 ;; hmm, this is a problem when using multiple connections to a bnc
2136 ;; with the same nick. Currently this code prevents using more than one
2137 ;; bnc with the same nick. actually it would be nice to have
2138 ;; bncs transparent, so that erc-compute-buffer-name displays
2139 ;; the server one is connected to.
2140 (setq nick (read-from-minibuffer
2141 (erc-format-message 'nick-in-use ?n nick)
2142 nick
2143 nil nil 'erc-nick-history-list)))
2144 (list :server server :port port :nick nick :password passwd)))
2146 ;;;###autoload
2147 (cl-defun erc (&key (server (erc-compute-server))
2148 (port (erc-compute-port))
2149 (nick (erc-compute-nick))
2150 password
2151 (full-name (erc-compute-full-name)))
2152 "ERC is a powerful, modular, and extensible IRC client.
2153 This function is the main entry point for ERC.
2155 It permits you to select connection parameters, and then starts ERC.
2157 Non-interactively, it takes the keyword arguments
2158 (server (erc-compute-server))
2159 (port (erc-compute-port))
2160 (nick (erc-compute-nick))
2161 password
2162 (full-name (erc-compute-full-name)))
2164 That is, if called with
2168 then the server and full-name will be set to those values, whereas
2169 `erc-compute-port', `erc-compute-nick' and `erc-compute-full-name' will
2170 be invoked for the values of the other parameters."
2171 (interactive (erc-select-read-args))
2172 (erc-open server port nick full-name t password))
2174 ;;;###autoload
2175 (defalias 'erc-select 'erc)
2176 (defalias 'erc-ssl 'erc-tls)
2178 ;;;###autoload
2179 (defun erc-tls (&rest r)
2180 "Interactively select TLS connection parameters and run ERC.
2181 Arguments are the same as for `erc'."
2182 (interactive (erc-select-read-args))
2183 (let ((erc-server-connect-function 'erc-open-tls-stream))
2184 (apply 'erc r)))
2186 (defun erc-open-tls-stream (name buffer host port)
2187 "Open an TLS stream to an IRC server.
2188 The process will be given the name NAME, its target buffer will be
2189 BUFFER. HOST and PORT specify the connection target."
2190 (open-network-stream name buffer host port
2191 :type 'tls))
2193 ;;; Displaying error messages
2195 (defun erc-error (&rest args)
2196 "Pass ARGS to `format', and display the result as an error message.
2197 If `debug-on-error' is set to non-nil, then throw a real error with this
2198 message instead, to make debugging easier."
2199 (if debug-on-error
2200 (apply #'error args)
2201 (apply #'message args)
2202 (beep)))
2204 ;;; Debugging the protocol
2206 (defvar erc-debug-irc-protocol nil
2209 The buffer is created if it doesn't exist.
2211 NOTE: If this variable is non-nil, and you kill the only
2213 but you won't see it.
2215 WARNING: Do not set this variable directly! Instead, use the
2216 function `erc-toggle-debug-irc-protocol' to toggle its value.")
2218 (declare-function erc-network-name "erc-networks" ())
2220 (defun erc-log-irc-protocol (string &optional outbound)
2221 "Append STRING to the buffer *erc-protocol*.
2223 This only has any effect if `erc-debug-irc-protocol' is non-nil.
2225 The buffer is created if it doesn't exist.
2227 If OUTBOUND is non-nil, STRING is being sent to the IRC server
2228 and appears in face `erc-input-face' in the buffer."
2229 (when erc-debug-irc-protocol
2230 (let ((network-name (or (ignore-errors (erc-network-name))
2231 "???")))
2232 (with-current-buffer (get-buffer-create "*erc-protocol*")
2233 (save-excursion
2234 (goto-char (point-max))
2235 (let ((inhibit-read-only t))
2236 (insert (if (not outbound)
2237 ;; Cope with the fact that string might
2238 ;; contain multiple lines of text.
2239 (let ((lines (delete "" (split-string string
2241 (result ""))
2242 (dolist (line lines)
2243 (setq result (concat result network-name
2245 result)
2246 (erc-propertize
2247 (concat network-name " >> " string
2249 (aref string
2250 (1- (length string))))
2252 'face 'erc-input-face)))))
2253 (let ((orig-win (selected-window))
2254 (debug-buffer-window (get-buffer-window (current-buffer) t)))
2255 (when debug-buffer-window
2256 (select-window debug-buffer-window)
2257 (when (= 1 (count-lines (point) (point-max)))
2258 (goto-char (point-max))
2259 (recenter -1))
2260 (select-window orig-win)))))))
2262 (defun erc-toggle-debug-irc-protocol (&optional arg)
2263 "Toggle the value of `erc-debug-irc-protocol'.
2265 If ARG is non-nil, show the *erc-protocol* buffer."
2266 (interactive "P")
2267 (let* ((buf (get-buffer-create "*erc-protocol*")))
2268 (with-current-buffer buf
2269 (erc-view-mode-enter)
2270 (when (null (current-local-map))
2271 (let ((inhibit-read-only t))
2272 (insert (erc-make-notice "This buffer displays all IRC protocol traffic exchanged with each server.\n"))
2274 (use-local-map (make-sparse-keymap))
2275 (local-set-key (kbd "t") 'erc-toggle-debug-irc-protocol))
2276 (add-hook 'kill-buffer-hook
2277 #'(lambda () (setq erc-debug-irc-protocol nil))
2278 nil 'local)
2279 (goto-char (point-max))
2280 (let ((inhibit-read-only t))
2281 (insert (erc-make-notice
2283 (if erc-debug-irc-protocol "disabled" "enabled")
2284 (current-time-string))))))
2285 (setq erc-debug-irc-protocol (not erc-debug-irc-protocol))
2286 (if (and arg
2287 (not (get-buffer-window "*erc-protocol*" t)))
2288 (display-buffer buf t))
2289 (message "IRC protocol traffic logging %s (see buffer *erc-protocol*)."
2290 (if erc-debug-irc-protocol "enabled" "disabled"))))
2292 ;;; I/O interface
2294 ;; send interface
2296 (defun erc-send-action (tgt str &optional force)
2297 "Send CTCP ACTION information described by STR to TGT."
2298 (erc-send-ctcp-message tgt (format "ACTION %s" str) force)
2299 (erc-display-message
2300 nil 'input (current-buffer)
2301 'ACTION ?n (erc-current-nick) ?a str ?u "" ?h ""))
2303 ;; Display interface
2305 (defun erc-string-invisible-p (string)
2306 "Check whether STRING is invisible or not.
2307 I.e. any char in it has the `invisible' property set."
2308 (text-property-any 0 (length string) 'invisible t string))
2310 (defcustom erc-remove-parsed-property t
2311 "Whether to remove the erc-parsed text property after displaying a message.
2313 The default is to remove it, since it causes ERC to take up extra
2314 memory. If you have code that relies on this property, then set
2315 this option to nil."
2316 :type 'boolean
2317 :group 'erc)
2319 (defun erc-display-line-1 (string buffer)
2320 "Display STRING in `erc-mode' BUFFER.
2321 Auxiliary function used in `erc-display-line'. The line gets filtered to
2322 interpret the control characters. Then, `erc-insert-pre-hook' gets called.
2323 If `erc-insert-this' is still t, STRING gets inserted into the buffer.
2324 Afterwards, `erc-insert-modify' and `erc-insert-post-hook' get called.
2325 If STRING is nil, the function does nothing."
2326 (when string
2327 (with-current-buffer (or buffer (process-buffer erc-server-process))
2328 (let ((insert-position (or (marker-position erc-insert-marker)
2329 (point-max))))
2330 (let ((string string) ;; FIXME! Can this be removed?
2331 (buffer-undo-list t)
2332 (inhibit-read-only t))
2335 (when (erc-string-invisible-p string)
2336 (erc-put-text-properties 0 (length string)
2337 '(invisible intangible) string)))
2338 (erc-log (concat "erc-display-line: " string
2339 (format "(%S)" string) " in buffer "
2340 (format "%s" buffer)))
2341 (setq erc-insert-this t)
2342 (run-hook-with-args 'erc-insert-pre-hook string)
2343 (if (null erc-insert-this)
2344 ;; Leave erc-insert-this set to t as much as possible. Fran
2345 ;; Litterio <franl> has seen erc-insert-this set to nil while
2346 ;; erc-send-pre-hook is running, which should never happen. This
2347 ;; may cure it.
2348 (setq erc-insert-this t)
2349 (save-excursion ;; to restore point in the new buffer
2350 (save-restriction
2351 (widen)
2352 (goto-char insert-position)
2353 (insert-before-markers string)
2354 ;; run insertion hook, with point at restored location
2355 (save-restriction
2356 (narrow-to-region insert-position (point))
2357 (run-hooks 'erc-insert-modify-hook)
2358 (run-hooks 'erc-insert-post-hook)
2359 (when erc-remove-parsed-property
2360 (remove-text-properties (point-min) (point-max)
2361 '(erc-parsed nil))))))))
2362 (erc-update-undo-list (- (or (marker-position erc-insert-marker)
2363 (point-max))
2364 insert-position))))))
2366 (defun erc-update-undo-list (shift)
2367 ;; Translate buffer positions in buffer-undo-list by SHIFT.
2368 (unless (or (zerop shift) (atom buffer-undo-list))
2369 (let ((list buffer-undo-list) elt)
2370 (while list
2371 (setq elt (car list))
2372 (cond ((integerp elt) ; POSITION
2373 (cl-incf (car list) shift))
2374 ((or (atom elt) ; nil, EXTENT
2375 ;; (eq t (car elt)) ; (t . TIME)
2376 (markerp (car elt))) ; (MARKER . DISTANCE)
2377 nil)
2378 ((integerp (car elt)) ; (BEGIN . END)
2379 (cl-incf (car elt) shift)
2380 (cl-incf (cdr elt) shift))
2381 ((stringp (car elt)) ; (TEXT . POSITION)
2382 (cl-incf (cdr elt) (* (if (natnump (cdr elt)) 1 -1) shift)))
2383 ((null (car elt)) ; (nil PROPERTY VALUE BEG . END)
2384 (let ((cons (nthcdr 3 elt)))
2385 (cl-incf (car cons) shift)
2386 (cl-incf (cdr cons) shift)))
2387 ((and (featurep 'xemacs)
2388 (extentp (car elt))) ; (EXTENT START END)
2389 (cl-incf (nth 1 elt) shift)
2390 (cl-incf (nth 2 elt) shift)))
2391 (setq list (cdr list))))))
2394 "Regexp which matches all valid characters in a IRC nickname.")
2396 (defun erc-is-valid-nick-p (nick)
2397 "Check if NICK is a valid IRC nickname."
2398 (string-match (concat "^" erc-valid-nick-regexp "$") nick))
2400 (defun erc-display-line (string &optional buffer)
2401 "Display STRING in the ERC BUFFER.
2402 All screen output must be done through this function. If BUFFER is nil
2403 or omitted, the default ERC buffer for the `erc-session-server' is used.
2404 The BUFFER can be an actual buffer, a list of buffers, 'all or 'active.
2405 If BUFFER = 'all, the string is displayed in all the ERC buffers for the
2406 current session. 'active means the current active buffer
2407 \(`erc-active-buffer'). If the buffer can't be resolved, the current
2408 buffer is used. `erc-display-line-1' is used to display STRING.
2410 If STRING is nil, the function does nothing."
2411 (let ((inhibit-point-motion-hooks t)
2412 new-bufs)
2413 (dolist (buf (cond
2414 ((bufferp buffer) (list buffer))
2415 ((listp buffer) buffer)
2416 ((processp buffer) (list (process-buffer buffer)))
2417 ((eq 'all buffer)
2418 ;; Hmm, or all of the same session server?
2419 (erc-buffer-list nil erc-server-process))
2420 ((and (eq 'active buffer) (erc-active-buffer))
2421 (list (erc-active-buffer)))
2422 ((erc-server-buffer-live-p)
2423 (list (process-buffer erc-server-process)))
2424 (t (list (current-buffer)))))
2425 (when (buffer-live-p buf)
2426 (erc-display-line-1 string buf)
2427 (push buf new-bufs)))
2428 (when (null new-bufs)
2429 (erc-display-line-1 string (if (erc-server-buffer-live-p)
2430 (process-buffer erc-server-process)
2431 (current-buffer))))))
2433 (defun erc-display-message-highlight (type string)
2434 "Highlight STRING according to TYPE, where erc-TYPE-face is an ERC face.
2436 See also `erc-make-notice'."
2437 (cond ((eq type 'notice)
2438 (erc-make-notice string))
2439 (t
2440 (erc-put-text-property
2441 0 (length string)
2442 'face (or (intern-soft
2443 (concat "erc-" (symbol-name type) "-face"))
2444 "erc-default-face")
2445 string)
2446 string)))
2448 (defvar erc-lurker-state nil
2449 "Track the time of the last PRIVMSG for each (server,nick) pair.
2451 This is implemented as a hash of hashes, where the outer key is
2452 the canonicalized server name (as returned by
2453 `erc-canonicalize-server-name') and the outer value is a hash
2454 table mapping nicks (as returned by `erc-lurker-maybe-trim') to
2455 the times of their most recently received PRIVMSG on any channel
2456 on the given server.")
2458 (defcustom erc-lurker-trim-nicks t
2459 "If t, trim trailing `erc-lurker-ignore-chars' from nicks.
2461 This causes e.g. nick and nick` to be considered as the same
2462 individual for activity tracking and lurkiness detection
2463 purposes."
2464 :group 'erc-lurker
2465 :type 'boolean)
2467 (defcustom erc-lurker-ignore-chars "`_"
2468 "Characters at the end of a nick to strip for activity tracking purposes.
2470 See also `erc-lurker-trim-nicks'."
2471 :group 'erc-lurker
2472 :type 'string)
2474 (defun erc-lurker-maybe-trim (nick)
2475 "Maybe trim trailing `erc-lurker-ignore-chars' from NICK.
2477 Returns NICK unmodified unless `erc-lurker-trim-nicks' is
2478 non-nil."
2479 (if erc-lurker-trim-nicks
2480 (replace-regexp-in-string
2481 (format "[%s]"
2482 (mapconcat (lambda (char)
2483 (regexp-quote (char-to-string char)))
2484 erc-lurker-ignore-chars ""))
2485 "" nick)
2486 nick))
2488 (defcustom erc-lurker-hide-list nil
2489 "List of IRC type messages to hide when sent by lurkers.
2492 See also `erc-lurker-p' and `erc-hide-list'."
2493 :group 'erc-lurker
2494 :type 'erc-message-type)
2496 (defcustom erc-lurker-threshold-time (* 60 60 24) ; 24h by default
2497 "Nicks from which no PRIVMSGs have been received within this
2498 interval (in units of seconds) are considered lurkers by
2499 `erc-lurker-p' and as a result their messages of types in
2500 `erc-lurker-hide-list' will be hidden."
2501 :group 'erc-lurker
2502 :type 'integer)
2504 (defun erc-lurker-initialize ()
2505 "Initialize ERC lurker tracking functionality.
2507 This function adds `erc-lurker-update-status' to
2508 `erc-insert-pre-hook' in order to record the time of each nick's
2509 most recent PRIVMSG as well as initializing the state variable
2510 storing this information."
2511 (setq erc-lurker-state (make-hash-table :test 'equal))
2512 (add-hook 'erc-insert-pre-hook 'erc-lurker-update-status))
2514 (defun erc-lurker-cleanup ()
2515 "Remove all last PRIVMSG state older than `erc-lurker-threshold-time'.
2517 This should be called regularly to avoid excessive resource
2518 consumption for long-lived IRC or Emacs sessions."
2519 (maphash
2520 (lambda (server hash)
2521 (maphash
2522 (lambda (nick last-PRIVMSG-time)
2523 (when
2524 (> (float-time (time-subtract
2525 (current-time)
2526 last-PRIVMSG-time))
2527 erc-lurker-threshold-time)
2528 (remhash nick hash)))
2529 hash)
2530 (if (zerop (hash-table-count hash))
2531 (remhash server erc-lurker-state)))
2532 erc-lurker-state))
2534 (defvar erc-lurker-cleanup-count 0
2535 "Internal counter variable for use with `erc-lurker-cleanup-interval'.")
2537 (defvar erc-lurker-cleanup-interval 100
2538 "Frequency of cleaning up stale erc-lurker state.
2540 `erc-lurker-update-status' calls `erc-lurker-cleanup' once for
2541 every `erc-lurker-cleanup-interval' updates to
2542 `erc-lurker-state'. This is designed to limit the memory
2543 consumption of lurker state during long Emacs sessions and/or ERC
2544 sessions with large numbers of incoming PRIVMSGs.")
2546 (defun erc-lurker-update-status (_message)
2547 "Update `erc-lurker-state' if necessary.
2549 This function is called from `erc-insert-pre-hook'. If the
2550 current message is a PRIVMSG, update `erc-lurker-state' to
2551 reflect the fact that its sender has issued a PRIVMSG at the
2552 current time. Otherwise, take no action.
2554 This function depends on the fact that `erc-display-message'
2555 dynamically binds `parsed', which is used to check if the current
2556 message is a PRIVMSG and to determine its sender. See also
2557 `erc-lurker-trim-nicks' and `erc-lurker-ignore-chars'.
2559 In order to limit memory consumption, this function also calls
2560 `erc-lurker-cleanup' once every `erc-lurker-cleanup-interval'
2561 updates of `erc-lurker-state'."
2562 (when (and (boundp 'parsed) (erc-response-p parsed))
2563 (let* ((command (erc-response.command parsed))
2564 (sender
2565 (erc-lurker-maybe-trim
2566 (car (erc-parse-user (erc-response.sender parsed)))))
2567 (server
2568 (erc-canonicalize-server-name erc-server-announced-name)))
2569 (when (equal command "PRIVMSG")
2570 (when (>= (cl-incf erc-lurker-cleanup-count)
2571 erc-lurker-cleanup-interval)
2572 (setq erc-lurker-cleanup-count 0)
2573 (erc-lurker-cleanup))
2574 (unless (gethash server erc-lurker-state)
2575 (puthash server (make-hash-table :test 'equal) erc-lurker-state))
2576 (puthash sender (current-time)
2577 (gethash server erc-lurker-state))))))
2579 (defun erc-lurker-p (nick)
2580 "Predicate indicating NICK's lurking status on the current server.
2582 Lurking is the condition where NICK has issued no PRIVMSG on this
2583 server within `erc-lurker-threshold-time'. See also
2584 `erc-lurker-trim-nicks' and `erc-lurker-ignore-chars'."
2585 (unless erc-lurker-state (erc-lurker-initialize))
2586 (let* ((server
2587 (erc-canonicalize-server-name erc-server-announced-name))
2588 (last-PRIVMSG-time
2589 (gethash (erc-lurker-maybe-trim nick)
2590 (gethash server erc-lurker-state (make-hash-table)))))
2591 (or (null last-PRIVMSG-time)
2592 (> (float-time
2593 (time-subtract (current-time) last-PRIVMSG-time))
2594 erc-lurker-threshold-time))))
2596 (defcustom erc-common-server-suffixes
2597 '(("openprojects.net$" . "OPN")
2598 ("freenode.net$" . "freenode")
2599 ("oftc.net$" . "OFTC"))
2600 "Alist of common server name suffixes.
2601 This variable is used in mode-line display to save screen
2602 real estate. Set it to nil if you want to avoid changing
2603 displayed hostnames."
2604 :group 'erc-mode-line-and-header
2605 :type 'alist)
2607 (defun erc-canonicalize-server-name (server)
2608 "Return the canonical network name for SERVER if any,
2609 otherwise `erc-server-announced-name'. SERVER is matched against
2610 `erc-common-server-suffixes'."
2611 (when server
2612 (or (cdar (erc-remove-if-not
2613 (lambda (net) (string-match (car net) server))
2614 erc-common-server-suffixes))
2615 erc-server-announced-name)))
2617 (defun erc-hide-current-message-p (parsed)
2618 "Predicate indicating whether the parsed ERC response PARSED should be hidden.
2620 Messages are always hidden if the message type of PARSED appears in
2621 `erc-hide-list'. In addition, messages whose type is a member of
2622 `erc-lurker-hide-list' are hidden if `erc-lurker-p' returns true."
2623 (let* ((command (erc-response.command parsed))
2624 (sender (car (erc-parse-user (erc-response.sender parsed)))))
2625 (or (member command erc-hide-list)
2626 (and (member command erc-lurker-hide-list) (erc-lurker-p sender)))))
2628 (defun erc-display-message (parsed type buffer msg &rest args)
2629 "Display MSG in BUFFER.
2631 ARGS, PARSED, and TYPE are used to format MSG sensibly.
2633 See also `erc-format-message' and `erc-display-line'."
2634 (let ((string (if (symbolp msg)
2635 (apply 'erc-format-message msg args)
2636 msg)))
2637 (setq string
2638 (cond
2639 ((null type)
2640 string)
2641 ((listp type)
2642 (mapc (lambda (type)
2643 (setq string
2644 (erc-display-message-highlight type string)))
2645 type)
2646 string)
2647 ((symbolp type)
2648 (erc-display-message-highlight type string))))
2650 (if (not (erc-response-p parsed))
2651 (erc-display-line string buffer)
2652 (unless (erc-hide-current-message-p parsed)
2653 (erc-put-text-property 0 (length string) 'erc-parsed parsed string)
2654 (erc-put-text-property 0 (length string) 'rear-sticky t string)
2655 (erc-display-line string buffer)))))
2657 (defun erc-message-type-member (position list)
2658 "Return non-nil if the erc-parsed text-property at POSITION is in LIST.
2660 This function relies on the erc-parsed text-property being
2661 present."
2662 (let ((prop-val (erc-get-parsed-vector position)))
2663 (and prop-val (member (erc-response.command prop-val) list))))
2665 (defvar erc-send-input-line-function 'erc-send-input-line)
2666 (make-variable-buffer-local 'erc-send-input-line-function)
2668 (defun erc-send-input-line (target line &optional force)
2669 "Send LINE to TARGET.
2671 See also `erc-server-send'."
2672 (setq line (format "PRIVMSG %s :%s"
2673 target
2674 ;; If the line is empty, we still want to
2675 ;; send it - i.e. an empty pasted line.
2678 line)))
2679 (erc-server-send line force target))
2681 (defun erc-get-arglist (fun)
2682 "Return the argument list of a function without the parens."
2683 (let ((arglist (format "%S" (erc-function-arglist fun))))
2685 (match-string 1 arglist)
2686 arglist)))
2688 (defun erc-command-no-process-p (str)
2689 "Return non-nil if STR is an ERC command that can be run when the process
2690 is not alive, nil otherwise."
2691 (let ((fun (erc-extract-command-from-line str)))
2692 (and fun
2693 (symbolp (car fun))
2694 (get (car fun) 'process-not-needed))))
2696 (defun erc-command-name (cmd)
2697 "For CMD being the function name of a ERC command, something like
2698 erc-cmd-FOO, this returns a string /FOO."
2699 (let ((command-name (symbol-name cmd)))
2701 (concat "/" (match-string 1 command-name))
2702 command-name)))
2704 (defun erc-process-input-line (line &optional force no-command)
2705 "Translate LINE to an RFC1459 command and send it based.
2706 Returns non-nil if the command is actually sent to the server, and nil
2707 otherwise.
2709 If the command in the LINE is not bound as a function `erc-cmd-<COMMAND>',
2710 it is passed to `erc-cmd-default'. If LINE is not a command (i.e. doesn't
2711 start with /<COMMAND>) then it is sent as a message.
2713 An optional FORCE argument forces sending the line when flood
2714 protection is in effect. The optional NO-COMMAND argument prohibits
2715 this function from interpreting the line as a command."
2716 (let ((command-list (erc-extract-command-from-line line)))
2717 (if (and command-list
2718 (not no-command))
2719 (let* ((cmd (nth 0 command-list))
2720 (args (nth 1 command-list)))
2721 (condition-case nil
2722 (if (listp args)
2723 (apply cmd args)
2724 (funcall cmd args))
2725 (wrong-number-of-arguments
2726 (erc-display-message nil 'error (current-buffer) 'incorrect-args
2727 ?c (erc-command-name cmd)
2728 ?u (or (erc-get-arglist cmd)
2729 "")
2731 (or (documentation cmd) "")))
2732 nil)))
2733 (let ((r (erc-default-target)))
2734 (if r
2735 (funcall erc-send-input-line-function r line force)
2736 (erc-display-message nil 'error (current-buffer) 'no-target)
2737 nil)))))
2739 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2740 ;; Input commands handlers
2741 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2743 (defun erc-cmd-AMSG (line)
2744 "Send LINE to all channels of the current server that you are on."
2745 (interactive "sSend to all channels you're on: ")
2746 (setq line (erc-trim-string line))
2747 (erc-with-all-buffers-of-server nil
2748 (lambda ()
2749 (erc-channel-p (erc-default-target)))
2750 (erc-send-message line)))
2751 (put 'erc-cmd-AMSG 'do-not-parse-args t)
2753 (defun erc-cmd-SAY (line)
2754 "Send LINE to the current query or channel as a message, not a command.
2756 Use this when you want to send a message with a leading '/'. Note
2757 that since multi-line messages are never a command, you don't
2758 need this when pasting multiple lines of text."
2760 nil
2762 (erc-process-input-line (match-string 1 line) nil t)))
2763 (put 'erc-cmd-SAY 'do-not-parse-args t)
2765 (defun erc-cmd-SET (line)
2766 "Set the variable named by the first word in LINE to some VALUE.
2767 VALUE is computed by evaluating the rest of LINE in Lisp."
2768 (cond
2770 (let ((var (read (concat "erc-" (match-string 1 line))))
2771 (val (read (match-string 2 line))))
2772 (if (boundp var)
2773 (progn
2774 (set var (eval val))
2775 (erc-display-message
2776 nil nil 'active (format "Set %S to %S" var val))
2777 t)
2778 (setq var (read (match-string 1 line)))
2779 (if (boundp var)
2780 (progn
2781 (set var (eval val))
2782 (erc-display-message
2783 nil nil 'active (format "Set %S to %S" var val))
2784 t)
2785 (erc-display-message nil 'error 'active 'variable-not-bound)
2786 nil))))
2788 (erc-display-line
2790 (apply
2791 'concat
2792 (mapcar
2793 (lambda (var)
2794 (let ((val (symbol-value var)))
2795 (concat (format "%S:" var)
2796 (if (consp val)
2799 (apropos-internal "^erc-" 'custom-variable-p))))
2800 (current-buffer))
2801 t)
2802 (t nil)))
2803 (defalias 'erc-cmd-VAR 'erc-cmd-SET)
2804 (defalias 'erc-cmd-VARIABLE 'erc-cmd-SET)
2805 (put 'erc-cmd-SET 'do-not-parse-args t)
2806 (put 'erc-cmd-SET 'process-not-needed t)
2808 (defun erc-cmd-default (line)
2809 "Fallback command.
2811 Commands for which no erc-cmd-xxx exists, are tunneled through
2812 this function. LINE is sent to the server verbatim, and
2813 therefore has to contain the command itself as well."
2814 (erc-log (format "cmd: DEFAULT: %s" line))
2815 (erc-server-send (substring line 1))
2816 t)
2818 (defun erc-cmd-IGNORE (&optional user)
2819 "Ignore USER. This should be a regexp matching nick!user@host.
2820 If no USER argument is specified, list the contents of `erc-ignore-list'."
2821 (if user
2822 (let ((quoted (regexp-quote user)))
2823 (when (and (not (string= user quoted))
2824 (y-or-n-p (format "Use regexp-quoted form (%s) instead? "
2825 quoted)))
2826 (setq user quoted))
2827 (erc-display-line
2828 (erc-make-notice (format "Now ignoring %s" user))
2829 'active)
2830 (erc-with-server-buffer (add-to-list 'erc-ignore-list user)))
2831 (if (null (erc-with-server-buffer erc-ignore-list))
2832 (erc-display-line (erc-make-notice "Ignore list is empty") 'active)
2833 (erc-display-line (erc-make-notice "Ignore list:") 'active)
2834 (mapc #'(lambda (item)
2835 (erc-display-line (erc-make-notice item)
2836 'active))
2837 (erc-with-server-buffer erc-ignore-list))))
2838 t)
2840 (defun erc-cmd-UNIGNORE (user)
2841 "Remove the user specified in USER from the ignore list."
2842 (let ((ignored-nick (car (erc-with-server-buffer
2843 (erc-member-ignore-case (regexp-quote user)
2844 erc-ignore-list)))))
2845 (unless ignored-nick
2846 (if (setq ignored-nick (erc-ignored-user-p user))
2847 (unless (y-or-n-p (format "Remove this regexp (%s)? "
2848 ignored-nick))
2849 (setq ignored-nick nil))
2850 (erc-display-line
2851 (erc-make-notice (format "%s is not currently ignored!" user))
2852 'active)))
2853 (when ignored-nick
2854 (erc-display-line
2855 (erc-make-notice (format "No longer ignoring %s" user))
2856 'active)
2857 (erc-with-server-buffer
2858 (setq erc-ignore-list (delete ignored-nick erc-ignore-list)))))
2859 t)
2861 (defun erc-cmd-CLEAR ()
2862 "Clear the window content."
2863 (recenter 0)
2864 t)
2865 (put 'erc-cmd-CLEAR 'process-not-needed t)
2867 (defun erc-cmd-OPS ()
2868 "Show the ops in the current channel."
2869 (interactive)
2870 (let ((ops nil))
2871 (if erc-channel-users
2872 (maphash (lambda (_nick user-data)
2873 (let ((cuser (cdr user-data)))
2874 (if (and cuser
2875 (erc-channel-user-op cuser))
2876 (setq ops (cons (erc-server-user-nickname
2877 (car user-data))
2878 ops)))))
2879 erc-channel-users))
2880 (setq ops (sort ops 'string-lessp))
2881 (if ops
2882 (erc-display-message
2883 nil 'notice (current-buffer) 'ops
2884 ?i (length ops) ?s (if (> (length ops) 1) "s" "")
2885 ?o (mapconcat 'identity ops " "))
2886 (erc-display-message nil 'notice (current-buffer) 'ops-none)))
2887 t)
2889 (defun erc-cmd-COUNTRY (tld)
2890 "Display the country associated with the top level domain TLD."
2891 (require 'mail-extr)
2892 (let ((co (ignore-errors (what-domain tld))))
2893 (if co
2894 (erc-display-message
2895 nil 'notice 'active 'country ?c co ?d tld)
2896 (erc-display-message
2897 nil 'notice 'active 'country-unknown ?d tld))
2898 t))
2899 (put 'erc-cmd-COUNTRY 'process-not-needed t)
2901 (defun erc-cmd-AWAY (line)
2902 "Mark the user as being away, the reason being indicated by LINE.
2903 If no reason is given, unset away status."
2905 (let ((reason (match-string 1 line)))
2906 (erc-log (format "cmd: AWAY: %s" reason))
2907 (erc-server-send
2908 (if (string= reason "")
2909 "AWAY"
2910 (concat "AWAY :" reason))))
2911 t))
2912 (put 'erc-cmd-AWAY 'do-not-parse-args t)
2914 (defun erc-cmd-GAWAY (line)
2915 "Mark the user as being away everywhere, the reason being indicated by LINE."
2916 ;; on all server buffers.
2917 (erc-with-all-buffers-of-server nil
2918 #'erc-open-server-buffer-p
2919 (erc-cmd-AWAY line)))
2920 (put 'erc-cmd-GAWAY 'do-not-parse-args t)
2922 (defun erc-cmd-CTCP (nick cmd &rest args)
2923 "Send a Client To Client Protocol message to NICK.
2925 CMD is the CTCP command, possible values being ECHO, FINGER, CLIENTINFO, TIME,
2926 VERSION and so on. It is called with ARGS."
2927 (let ((str (concat cmd
2928 (when args
2929 (concat " " (mapconcat #'identity args " "))))))
2930 (erc-log (format "cmd: CTCP [%s]: [%s]" nick str))
2931 (erc-send-ctcp-message nick str)
2932 t))
2934 (defun erc-cmd-HELP (&optional func)
2935 "Popup help information.
2937 If FUNC contains a valid function or variable, help about that
2938 will be displayed. If FUNC is empty, display an apropos about
2939 ERC commands. Otherwise, do `apropos' in the ERC namespace
2942 Examples:
2943 To find out about erc and bbdb, do
2944 /help bbdb.*
2946 For help about the WHOIS command, do:
2947 /help whois
2949 For a list of user commands (/join /part, ...):
2950 /help."
2951 (if func
2952 (let* ((sym (or (let ((sym (intern-soft
2953 (concat "erc-cmd-" (upcase func)))))
2954 (if (and sym (or (boundp sym) (fboundp sym)))
2955 sym
2956 nil))
2957 (let ((sym (intern-soft func)))
2958 (if (and sym (or (boundp sym) (fboundp sym)))
2959 sym
2960 nil))
2961 (let ((sym (intern-soft (concat "erc-" func))))
2962 (if (and sym (or (boundp sym) (fboundp sym)))
2963 sym
2964 nil)))))
2965 (if sym
2966 (cond
2967 ((boundp sym) (describe-variable sym))
2968 ((fboundp sym) (describe-function sym))
2969 (t nil))
2970 (apropos-command (concat "erc-.*" func) nil
2971 (lambda (x)
2972 (or (commandp x)
2973 (get x 'custom-type))))
2974 t))
2975 (apropos "erc-cmd-")
2976 (message "Type C-h m to get additional information about keybindings.")
2977 t))
2979 (defalias 'erc-cmd-H 'erc-cmd-HELP)
2980 (put 'erc-cmd-HELP 'process-not-needed t)
2982 (defun erc-cmd-JOIN (channel &optional key)
2983 "Join the channel given in CHANNEL, optionally with KEY.
2985 were most recently invited. See also `invitation'."
2986 (let (chnl)
2987 (if (string= (upcase channel) "-INVITE")
2988 (if erc-invitation
2989 (setq chnl erc-invitation)
2990 (erc-display-message nil 'error (current-buffer) 'no-invitation))
2991 (setq chnl (erc-ensure-channel-name channel)))
2992 (when chnl
2993 ;; Prevent double joining of same channel on same server.
2994 (let ((joined-channels
2995 (mapcar #'(lambda (chanbuf)
2996 (with-current-buffer chanbuf (erc-default-target)))
2997 (erc-channel-list erc-server-process))))
2998 (if (erc-member-ignore-case chnl joined-channels)
2999 (switch-to-buffer (car (erc-member-ignore-case chnl
3000 joined-channels)))
3001 (erc-log (format "cmd: JOIN: %s" chnl))
3002 (erc-server-send (if (and chnl key)
3003 (format "JOIN %s %s" chnl key)
3004 (format "JOIN %s" chnl)))))))
3005 t)
3007 (defalias 'erc-cmd-CHANNEL 'erc-cmd-JOIN)
3008 (defalias 'erc-cmd-J 'erc-cmd-JOIN)
3010 (defvar erc-channel-new-member-names nil
3011 "If non-nil, a names list is currently being received.
3013 If non-nil, this variable is a hash-table that associates
3014 received nicks with t.")
3015 (make-variable-buffer-local 'erc-channel-new-member-names)
3017 (defun erc-cmd-NAMES (&optional channel)
3018 "Display the users in CHANNEL.
3019 If CHANNEL is not specified, display the users in the current channel.
3020 This function clears the channel name list first, then sends the
3021 command."
3022 (let ((tgt (or (and (erc-channel-p channel) channel)
3023 (erc-default-target))))
3024 (if (and tgt (erc-channel-p tgt))
3025 (progn
3026 (erc-log (format "cmd: DEFAULT: NAMES %s" tgt))
3027 (erc-with-buffer
3028 (tgt)
3029 (erc-channel-begin-receiving-names))
3030 (erc-server-send (concat "NAMES " tgt)))
3031 (erc-display-message nil 'error (current-buffer) 'no-default-channel)))
3032 t)
3033 (defalias 'erc-cmd-N 'erc-cmd-NAMES)
3035 (defun erc-cmd-KICK (target &optional reason-or-nick &rest reasonwords)
3036 "Kick the user indicated in LINE from the current channel.
3038 (let ((reasonstring (mapconcat 'identity reasonwords " ")))
3039 (if (string= "" reasonstring)
3040 (setq reasonstring (format "Kicked by %s" (erc-current-nick))))
3041 (if (erc-channel-p target)
3042 (let ((nick reason-or-nick))
3043 (erc-log (format "cmd: KICK: %s/%s: %s" nick target reasonstring))
3044 (erc-server-send (format "KICK %s %s :%s" target nick reasonstring)
3045 nil target)
3046 t)
3047 (when target
3048 (let ((ch (erc-default-target)))
3049 (setq reasonstring (concat
3050 (if reason-or-nick (concat reason-or-nick " "))
3051 reasonstring))
3052 (if ch
3053 (progn
3054 (erc-log
3055 (format "cmd: KICK: %s/%s: %s" target ch reasonstring))
3056 (erc-server-send
3057 (format "KICK %s %s :%s" ch target reasonstring) nil ch))
3058 (erc-display-message nil 'error (current-buffer)
3059 'no-default-channel))
3060 t)))))
3062 (defvar erc-script-args nil)
3064 (defun erc-cmd-LOAD (line)
3065 "Load the script provided in the LINE.
3066 If LINE continues beyond the file name, the rest of
3067 it is put in a (local) variable `erc-script-args',
3068 which can be used in Emacs Lisp scripts.
3070 The optional FORCE argument is ignored here - you can't force loading
3071 a script after exceeding the flood threshold."
3072 (cond
3074 (let* ((file-to-find (match-string 1 line))
3075 (erc-script-args (match-string 2 line))
3076 (file (erc-find-file file-to-find erc-script-path)))
3077 (erc-log (format "cmd: LOAD: %s" file-to-find))
3078 (cond
3079 ((not file)
3080 (erc-display-message nil 'error (current-buffer)
3081 'cannot-find-file ?f file-to-find))
3082 ((not (file-readable-p file))
3083 (erc-display-message nil 'error (current-buffer)
3084 'cannot-read-file ?f file))
3085 (t
3087 (erc-load-script file)
3089 t)
3090 (t nil)))
3092 (defun erc-cmd-WHOIS (user &optional server)
3093 "Display whois information for USER.
3095 If SERVER is non-nil, use that, rather than the current server."
3096 ;; FIXME: is the above docstring correct? -- Lawrence 2004-01-08
3097 (let ((send (if server
3098 (format "WHOIS %s %s" user server)
3099 (format "WHOIS %s" user))))
3100 (erc-log (format "cmd: %s" send))
3101 (erc-server-send send)
3102 t))
3103 (defalias 'erc-cmd-WI 'erc-cmd-WHOIS)
3105 (defun erc-cmd-WHOAMI ()
3106 "Display whois information about yourself."
3107 (erc-cmd-WHOIS (erc-current-nick))
3108 t)
3110 (defun erc-cmd-IDLE (nick)
3111 "Show the length of time NICK has been idle."
3112 (let ((origbuf (current-buffer))
3113 symlist)
3114 (erc-with-server-buffer
3115 (push (cons (erc-once-with-server-event
3116 311 (lambda (_proc parsed)
3117 (string= nick
3118 (nth 1 (erc-response.command-args
3119 parsed)))))
3120 'erc-server-311-functions)
3121 symlist)
3122 (push (cons (erc-once-with-server-event
3123 312 (lambda (_proc parsed)
3124 (string= nick
3125 (nth 1 (erc-response.command-args
3126 parsed)))))
3127 'erc-server-312-functions)
3128 symlist)
3129 (push (cons (erc-once-with-server-event
3130 318 (lambda (_proc parsed)
3131 (string= nick
3132 (nth 1 (erc-response.command-args
3133 parsed)))))
3134 'erc-server-318-functions)
3135 symlist)
3136 (push (cons (erc-once-with-server-event
3137 319 (lambda (_proc parsed)
3138 (string= nick
3139 (nth 1 (erc-response.command-args
3140 parsed)))))
3141 'erc-server-319-functions)
3142 symlist)
3143 (push (cons (erc-once-with-server-event
3144 320 (lambda (_proc parsed)
3145 (string= nick
3146 (nth 1 (erc-response.command-args
3147 parsed)))))
3148 'erc-server-320-functions)
3149 symlist)
3150 (push (cons (erc-once-with-server-event
3151 330 (lambda (_proc parsed)
3152 (string= nick
3153 (nth 1 (erc-response.command-args
3154 parsed)))))
3155 'erc-server-330-functions)
3156 symlist)
3157 (push (cons (erc-once-with-server-event
3158 317
3159 (lambda (_proc parsed)
3160 (let ((idleseconds
3161 (string-to-number
3162 (cl-third
3163 (erc-response.command-args parsed)))))
3164 (erc-display-line
3165 (erc-make-notice
3166 (format "%s has been idle for %s."
3167 (erc-string-no-properties nick)
3168 (erc-seconds-to-string idleseconds)))
3169 origbuf)
3170 t)))
3171 'erc-server-317-functions)
3172 symlist)
3174 ;; Send the WHOIS command.
3175 (erc-cmd-WHOIS nick)
3177 ;; Remove the uninterned symbols from the server hooks that did not run.
3178 (run-at-time 20 nil (lambda (buf symlist)
3179 (with-current-buffer buf
3180 (dolist (sym symlist)
3181 (let ((hooksym (cdr sym))
3182 (funcsym (car sym)))
3183 (remove-hook hooksym funcsym t)))))
3184 (current-buffer) symlist)))
3185 t)
3187 (defun erc-cmd-DESCRIBE (line)
3188 "Pose some action to a certain user.
3190 (cond
3191 ((string-match
3193 (let ((dst (match-string 1 line))
3194 (s (match-string 2 line)))
3195 (erc-log (format "cmd: DESCRIBE: [%s] %s" dst s))
3196 (erc-send-action dst s))
3197 t)
3198 (t nil)))
3199 (put 'erc-cmd-DESCRIBE 'do-not-parse-args t)
3201 (defun erc-cmd-ME (line)
3202 "Send LINE as an action."
3203 (cond
3205 (let ((s (match-string 1 line)))
3206 (erc-log (format "cmd: ME: %s" s))
3207 (erc-send-action (erc-default-target) s))
3208 t)
3209 (t nil)))
3210 (put 'erc-cmd-ME 'do-not-parse-args t)
3214 (erc-cmd-ME (concat " 's" line)))
3217 (defun erc-cmd-LASTLOG (line)
3218 "Show all lines in the current buffer matching the regexp LINE.
3220 If a match spreads across multiple lines, all those lines are shown.
3222 The lines are shown in a buffer named `*Occur*'.
3223 It serves as a menu to find any of the occurrences in this buffer.
3227 the matching is case-sensitive."
3228 (occur line)
3229 t)
3230 (put 'erc-cmd-LASTLOG 'do-not-parse-args t)
3231 (put 'erc-cmd-LASTLOG 'process-not-needed t)
3233 (defun erc-send-message (line &optional force)
3234 "Send LINE to the current channel or user and display it.
3236 See also `erc-message' and `erc-display-line'."
3237 (erc-message "PRIVMSG" (concat (erc-default-target) " " line) force)
3238 (erc-display-line
3239 (concat (erc-format-my-nick) line)
3240 (current-buffer))
3241 ;; FIXME - treat multiline, run hooks, or remove me?
3242 t)
3244 (defun erc-cmd-MODE (line)
3245 "Change or display the mode value of a channel or user.
3246 The first word specifies the target. The rest is the mode string
3247 to send.
3249 If only one word is given, display the mode of that target.
3251 A list of valid mode strings for Freenode may be found at
3252 URL `http://freenode.net/using_the_network.shtml'."
3253 (cond
3255 (let ((s (match-string 1 line)))
3256 (erc-log (format "cmd: MODE: %s" s))
3257 (erc-server-send (concat "MODE " line)))
3258 t)
3259 (t nil)))
3260 (put 'erc-cmd-MODE 'do-not-parse-args t)
3262 (defun erc-cmd-NOTICE (channel-or-user &rest message)
3263 "Send a notice to the channel or user given as the first word.
3264 The rest is the message to send."
3265 (erc-message "NOTICE" (concat channel-or-user " "
3266 (mapconcat #'identity message " "))))
3268 (defun erc-cmd-MSG (line)
3269 "Send a message to the channel or user given as the first word in LINE.
3271 The rest of LINE is the message to send."
3272 (erc-message "PRIVMSG" line))
3274 (defalias 'erc-cmd-M 'erc-cmd-MSG)
3275 (put 'erc-cmd-MSG 'do-not-parse-args t)
3277 (defun erc-cmd-SQUERY (line)
3278 "Send a Service Query to the service given as the first word in LINE.
3280 The rest of LINE is the message to send."
3281 (erc-message "SQUERY" line))
3283 (defun erc-cmd-NICK (nick)
3284 "Change current nickname to NICK."
3285 (erc-log (format "cmd: NICK: %s (erc-bad-nick: %S)" nick erc-bad-nick))
3286 (let ((nicklen (cdr (assoc "NICKLEN" (erc-with-server-buffer
3287 erc-server-parameters)))))
3288 (and nicklen (> (length nick) (string-to-number nicklen))
3289 (erc-display-message
3290 nil 'notice 'active 'nick-too-long
3291 ?i (length nick) ?l nicklen)))
3292 (erc-server-send (format "NICK %s" nick))
3293 (cond (erc-bad-nick
3294 (erc-set-current-nick nick)
3295 (erc-update-mode-line)
3296 (setq erc-bad-nick nil)))
3297 t)
3299 (defun erc-cmd-PART (line)
3300 "When LINE is an empty string, leave the current channel.
3301 Otherwise leave the channel indicated by LINE."
3302 (cond
3304 (let* ((ch (match-string 1 line))
3305 (msg (match-string 2 line))
3306 (reason (funcall erc-part-reason (if (equal msg "") nil msg))))
3307 (erc-log (format "cmd: PART: %s: %s" ch reason))
3308 (erc-server-send (if (string= reason "")
3309 (format "PART %s" ch)
3310 (format "PART %s :%s" ch reason))
3311 nil ch))
3312 t)
3314 (let* ((ch (erc-default-target))
3315 (msg (match-string 1 line))
3316 (reason (funcall erc-part-reason (if (equal msg "") nil msg))))
3317 (if (and ch (erc-channel-p ch))
3318 (progn
3319 (erc-log (format "cmd: PART: %s: %s" ch reason))
3320 (erc-server-send (if (string= reason "")
3321 (format "PART %s" ch)
3322 (format "PART %s :%s" ch reason))
3323 nil ch))
3324 (erc-display-message nil 'error (current-buffer) 'no-target)))
3325 t)
3326 (t nil)))
3327 (put 'erc-cmd-PART 'do-not-parse-args t)
3329 (defalias 'erc-cmd-LEAVE 'erc-cmd-PART)
3331 (defun erc-cmd-PING (recipient)
3332 "Ping RECIPIENT."
3333 (let ((time (format "%f" (erc-current-time))))
3334 (erc-log (format "cmd: PING: %s" time))
3335 (erc-cmd-CTCP recipient "PING" time)))
3337 (defun erc-cmd-QUOTE (line)
3338 "Send LINE directly to the server.
3339 All the text given as argument is sent to the sever as unmodified,
3340 just as you provided it. Use this command with care!"
3341 (cond
3343 (erc-server-send (match-string 1 line)))
3344 (t nil)))
3345 (put 'erc-cmd-QUOTE 'do-not-parse-args t)
3347 (defcustom erc-query-display 'window
3348 "Indicates how to display query buffers when using the /QUERY
3349 command to talk to someone.
3351 The default behavior is to display the message in a new window
3352 and bring it to the front. See the documentation for
3353 `erc-join-buffer' for a description of the available choices.
3355 See also `erc-auto-query' to decide how private messages from
3356 other people should be displayed."
3357 :group 'erc-query
3358 :type '(choice (const :tag "Split window and select" window)
3359 (const :tag "Split window, don't select" window-noselect)
3360 (const :tag "New frame" frame)
3361 (const :tag "Bury in new buffer" bury)
3362 (const :tag "Use current buffer" buffer)
3363 (const :tag "Use current buffer" t)))
3365 (defun erc-cmd-QUERY (&optional user)
3366 "Open a query with USER.
3367 The type of query window/frame/etc will depend on the value of
3368 `erc-query-display'.
3370 If USER is omitted, close the current query buffer if one exists
3371 - except this is broken now ;-)"
3372 (interactive
3373 (list (read-from-minibuffer "Start a query with: " nil)))
3374 (let ((session-buffer (erc-server-buffer))
3375 (erc-join-buffer erc-query-display))
3376 (if user
3377 (erc-query user session-buffer)
3378 ;; currently broken, evil hack to display help anyway
3379 ;(erc-delete-query))))
3380 (signal 'wrong-number-of-arguments ""))))
3381 (defalias 'erc-cmd-Q 'erc-cmd-QUERY)
3383 (defun erc-quit-reason-normal (&optional s)
3384 "Normal quit message.
3386 If S is non-nil, it will be used as the quit reason."
3387 (or s
3388 (format "\C-bERC\C-b %s (IRC client for Emacs)"; - \C-b%s\C-b"
3389 erc-version-string) ; erc-official-location)
3390 ))
3392 (defun erc-quit-reason-zippy (&optional s)
3393 "Zippy quit message.
3395 If S is non-nil, it will be used as the quit reason."
3396 (or s
3397 (if (fboundp 'yow)
3399 (erc-quit-reason-normal))))
3401 (make-obsolete 'erc-quit-reason-zippy "it will be removed." "24.4")
3403 (defun erc-quit-reason-various (s)
3404 "Choose a quit reason based on S (a string)."
3405 (when (featurep 'xemacs) (require 'poe))
3406 (let ((res (car (assoc-default (or s "")
3407 erc-quit-reason-various-alist 'string-match))))
3408 (cond
3409 ((functionp res) (funcall res))
3410 ((stringp res) res)
3411 (s s)
3412 (t (erc-quit-reason-normal)))))
3414 (defun erc-part-reason-normal (&optional s)
3415 "Normal part message.
3417 If S is non-nil, it will be used as the quit reason."
3418 (or s
3419 (format "\C-bERC\C-b %s (IRC client for Emacs)"; - \C-b%s\C-b"
3420 erc-version-string) ; erc-official-location)
3421 ))
3423 (defun erc-part-reason-zippy (&optional s)
3424 "Zippy part message.
3426 If S is non-nil, it will be used as the quit reason."
3427 (or s
3428 (if (fboundp 'yow)
3430 (erc-part-reason-normal))))
3432 (make-obsolete 'erc-part-reason-zippy "it will be removed." "24.4")
3434 (defun erc-part-reason-various (s)
3435 "Choose a part reason based on S (a string)."
3436 (when (featurep 'xemacs) (require 'poe))
3437 (let ((res (car (assoc-default (or s "")
3438 erc-part-reason-various-alist 'string-match))))
3439 (cond
3440 ((functionp res) (funcall res))
3441 ((stringp res) res)
3442 (s s)
3443 (t (erc-part-reason-normal)))))
3445 (defun erc-cmd-QUIT (reason)
3446 "Disconnect from the current server.
3447 If REASON is omitted, display a default quit message, otherwise display
3448 the message given by REASON."
3449 (unless reason
3450 (setq reason ""))
3451 (cond
3453 (let* ((s (match-string 1 reason))
3454 (buffer (erc-server-buffer))
3455 (reason (funcall erc-quit-reason (if (equal s "") nil s)))
3456 server-proc)
3457 (with-current-buffer (if (and buffer
3458 (bufferp buffer))
3459 buffer
3460 (current-buffer))
3461 (erc-log (format "cmd: QUIT: %s" reason))
3462 (setq erc-server-quitting t)
3463 (erc-set-active-buffer (erc-server-buffer))
3464 (setq server-proc erc-server-process)
3465 (erc-server-send (format "QUIT :%s" reason)))
3466 (run-hook-with-args 'erc-quit-hook server-proc)
3467 (when erc-kill-queries-on-quit
3468 (erc-kill-query-buffers server-proc))
3469 ;; if the process has not been killed within 4 seconds, kill it
3470 (run-at-time 4 nil
3471 (lambda (proc)
3472 (when (and (processp proc)
3473 (memq (process-status proc) '(run open)))
3474 (delete-process proc)))
3475 server-proc))
3476 t)
3477 (t nil)))
3479 (defalias 'erc-cmd-BYE 'erc-cmd-QUIT)
3480 (defalias 'erc-cmd-EXIT 'erc-cmd-QUIT)
3481 (defalias 'erc-cmd-SIGNOFF 'erc-cmd-QUIT)
3482 (put 'erc-cmd-QUIT 'do-not-parse-args t)
3483 (put 'erc-cmd-QUIT 'process-not-needed t)
3485 (defun erc-cmd-GQUIT (reason)
3486 "Disconnect from all servers at once with the same quit REASON."
3487 (erc-with-all-buffers-of-server nil #'erc-open-server-buffer-p
3488 (erc-cmd-QUIT reason))
3489 (when erc-kill-queries-on-quit
3490 ;; if the query buffers have not been killed within 4 seconds,
3491 ;; kill them
3492 (run-at-time
3493 4 nil
3494 (lambda ()
3495 (dolist (buffer (erc-buffer-list (lambda (buf)
3496 (not (erc-server-buffer-p buf)))))
3497 (kill-buffer buffer)))))
3498 t)
3500 (defalias 'erc-cmd-GQ 'erc-cmd-GQUIT)
3501 (put 'erc-cmd-GQUIT 'do-not-parse-args t)
3502 (put 'erc-cmd-GQUIT 'process-not-needed t)
3504 (defun erc-cmd-RECONNECT ()
3505 "Try to reconnect to the current IRC server."
3506 (let ((buffer (erc-server-buffer))
3507 (process nil))
3508 (unless (buffer-live-p buffer)
3509 (setq buffer (current-buffer)))
3510 (with-current-buffer buffer
3511 (setq erc-server-quitting nil)
3512 (setq erc-server-reconnecting t)
3513 (setq erc-server-reconnect-count 0)
3514 (setq process (get-buffer-process (erc-server-buffer)))
3515 (if process
3516 (delete-process process)
3517 (erc-server-reconnect))
3518 (setq erc-server-reconnecting nil)))
3519 t)
3520 (put 'erc-cmd-RECONNECT 'process-not-needed t)
3522 (defun erc-cmd-SERVER (server)
3523 "Connect to SERVER, leaving existing connection intact."
3524 (erc-log (format "cmd: SERVER: %s" server))
3525 (condition-case nil
3526 (erc :server server :nick (erc-current-nick))
3527 (error
3528 (erc-error "Cannot find host %s." server)))
3529 t)
3530 (put 'erc-cmd-SERVER 'process-not-needed t)
3532 (defvar motif-version-string)
3533 (defvar gtk-version-string)
3535 (defun erc-cmd-SV ()
3536 "Say the current ERC and Emacs version into channel."
3537 (erc-send-message (format "I'm using ERC %s with %s %s (%s%s) of %s."
3538 erc-version-string
3539 (if (featurep 'xemacs) "XEmacs" "GNU Emacs")
3540 emacs-version
3541 system-configuration
3542 (concat
3543 (cond ((featurep 'motif)
3544 (concat ", " (substring
3545 motif-version-string 4)))
3546 ((featurep 'gtk)
3547 (concat ", GTK+ Version "
3548 gtk-version-string))
3549 ((featurep 'x-toolkit) ", X toolkit")
3550 (t ""))
3551 (if (and (boundp 'x-toolkit-scroll-bars)
3552 (memq x-toolkit-scroll-bars
3553 '(xaw xaw3d)))
3554 (format ", %s scroll bars"
3555 (capitalize (symbol-name
3556 x-toolkit-scroll-bars)))
3557 "")
3558 (if (featurep 'multi-tty) ", multi-tty" ""))
3559 erc-emacs-build-time))
3560 t)
3562 (defun erc-cmd-SM ()
3563 "Say the current ERC modes into channel."
3564 (erc-send-message (format "I'm using the following modules: %s!"
3565 (erc-modes)))
3566 t)
3568 (defun erc-cmd-DEOP (&rest people)
3569 "Remove the operator setting from user(s) given in PEOPLE."
3570 (when (> (length people) 0)
3571 (erc-server-send (concat "MODE " (erc-default-target)
3572 " -"
3573 (make-string (length people) ?o)
3574 " "
3575 (mapconcat 'identity people " ")))
3576 t))
3578 (defun erc-cmd-OP (&rest people)
3579 "Add the operator setting to users(s) given in PEOPLE."
3580 (when (> (length people) 0)
3581 (erc-server-send (concat "MODE " (erc-default-target)
3582 " +"
3583 (make-string (length people) ?o)
3584 " "
3585 (mapconcat 'identity people " ")))
3586 t))
3588 (defun erc-cmd-TIME (&optional line)
3589 "Request the current time and date from the current server."
3590 (cond
3592 (let ((args (match-string 1 line)))
3593 (erc-log (format "cmd: TIME: %s" args))
3594 (erc-server-send (concat "TIME " args)))
3595 t)
3596 (t (erc-server-send "TIME"))))
3597 (defalias 'erc-cmd-DATE 'erc-cmd-TIME)
3599 (defun erc-cmd-TOPIC (topic)
3600 "Set or request the topic for a channel.
3602 or the empty string.
3604 If no #CHANNEL is given, the default channel is used. If TOPIC is
3605 given, the channel topic is modified, otherwise the current topic will
3606 be displayed."
3607 (cond
3608 ;; /topic #channel TOPIC
3610 (let ((ch (match-string 1 topic))
3611 (topic (match-string 2 topic)))
3612 (erc-log (format "cmd: TOPIC [%s]: %s" ch topic))
3613 (erc-server-send (format "TOPIC %s :%s" ch topic) nil ch))
3614 t)
3615 ;; /topic #channel
3617 (let ((ch (match-string 1 topic)))
3618 (erc-server-send (format "TOPIC %s" ch) nil ch)
3619 t))
3620 ;; /topic
3622 (let ((ch (erc-default-target)))
3623 (erc-server-send (format "TOPIC %s" ch) nil ch)
3624 t))
3625 ;; /topic TOPIC
3627 (let ((ch (erc-default-target))
3628 (topic (match-string 1 topic)))
3629 (if (and ch (erc-channel-p ch))
3630 (progn
3631 (erc-log (format "cmd: TOPIC [%s]: %s" ch topic))
3632 (erc-server-send (format "TOPIC %s :%s" ch topic) nil ch))
3633 (erc-display-message nil 'error (current-buffer) 'no-target)))
3634 t)
3635 (t nil)))
3636 (defalias 'erc-cmd-T 'erc-cmd-TOPIC)
3637 (put 'erc-cmd-TOPIC 'do-not-parse-args t)
3639 (defun erc-cmd-APPENDTOPIC (topic)
3640 "Append TOPIC to the current channel topic, separated by a space."
3641 (let ((oldtopic erc-channel-topic))
3642 ;; display help when given no arguments
3644 (signal 'wrong-number-of-arguments nil))
3645 ;; strip trailing ^O
3647 (erc-cmd-TOPIC (concat (match-string 1 oldtopic) topic)))))
3648 (defalias 'erc-cmd-AT 'erc-cmd-APPENDTOPIC)
3649 (put 'erc-cmd-APPENDTOPIC 'do-not-parse-args t)
3651 (defun erc-cmd-CLEARTOPIC (&optional channel)
3652 "Clear the topic for a CHANNEL.
3653 If CHANNEL is not specified, clear the topic for the default channel."
3654 (interactive "sClear topic of channel (RET is current channel): ")
3655 (let ((chnl (or (and (erc-channel-p channel) channel) (erc-default-target))))
3656 (when chnl
3657 (erc-server-send (format "TOPIC %s :" chnl))
3658 t)))
3660 ;;; Banlists
3662 (defvar erc-channel-banlist nil
3663 "A list of bans seen for the current channel.
3665 Each ban is an alist of the form:
3666 (WHOSET . MASK)
3668 The property `received-from-server' indicates whether
3669 or not the ban list has been requested from the server.")
3670 (make-variable-buffer-local 'erc-channel-banlist)
3671 (put 'erc-channel-banlist 'received-from-server nil)
3673 (defun erc-cmd-BANLIST ()
3674 "Pretty-print the contents of `erc-channel-banlist'.
3676 The ban list is fetched from the server if necessary."
3677 (let ((chnl (erc-default-target))
3678 (chnl-name (buffer-name)))
3680 (cond
3681 ((not (erc-channel-p chnl))
3683 'active))
3685 ((not (get 'erc-channel-banlist 'received-from-server))
3686 (let ((old-367-hook erc-server-367-functions))
3687 (setq erc-server-367-functions 'erc-banlist-store
3688 erc-channel-banlist nil)
3689 ;; fetch the ban list then callback
3690 (erc-with-server-buffer
3691 (erc-once-with-server-event
3692 368
3693 (lambda (_proc _parsed)
3694 (with-current-buffer chnl-name
3695 (put 'erc-channel-banlist 'received-from-server t)
3696 (setq erc-server-367-functions old-367-hook)
3697 (erc-cmd-BANLIST)
3698 t)))
3699 (erc-server-send (format "MODE %s b" chnl)))))
3701 ((null erc-channel-banlist)
3702 (erc-display-line (erc-make-notice
3704 'active)
3705 (put 'erc-channel-banlist 'received-from-server nil))
3707 (t
3708 (let* ((erc-fill-column (or (and (boundp 'erc-fill-column)
3709 erc-fill-column)
3710 (and (boundp 'fill-column)
3711 fill-column)
3712 (1- (window-width))))
3713 (separator (make-string erc-fill-column ?=))
3714 (fmt (concat
3715 "%-" (number-to-string (/ erc-fill-column 2)) "s"
3716 "%" (number-to-string (/ erc-fill-column 2)) "s")))
3718 (erc-display-line
3720 (erc-default-target)))
3721 'active)
3723 (erc-display-line separator 'active)
3724 (erc-display-line (format fmt "Ban Mask" "Banned By") 'active)
3725 (erc-display-line separator 'active)
3727 (mapc
3728 (lambda (x)
3729 (erc-display-line
3730 (format fmt
3731 (truncate-string-to-width (cdr x) (/ erc-fill-column 2))
3732 (if (car x)
3733 (truncate-string-to-width (car x) (/ erc-fill-column 2))
3734 ""))
3735 'active))
3736 erc-channel-banlist)
3738 (erc-display-line (erc-make-notice "End of Ban list")
3739 'active)
3740 (put 'erc-channel-banlist 'received-from-server nil)))))
3741 t)
3743 (defalias 'erc-cmd-BL 'erc-cmd-BANLIST)
3745 (defun erc-cmd-MASSUNBAN ()
3746 "Mass Unban.
3748 Unban all currently banned users in the current channel."
3749 (let ((chnl (erc-default-target)))
3750 (cond
3752 ((not (erc-channel-p chnl))
3753 (erc-display-line
3755 'active))
3757 ((not (get 'erc-channel-banlist 'received-from-server))
3758 (let ((old-367-hook erc-server-367-functions))
3759 (setq erc-server-367-functions 'erc-banlist-store)
3760 ;; fetch the ban list then callback
3761 (erc-with-server-buffer
3762 (erc-once-with-server-event
3763 368
3764 (lambda (_proc _parsed)
3765 (with-current-buffer chnl
3766 (put 'erc-channel-banlist 'received-from-server t)
3767 (setq erc-server-367-functions old-367-hook)
3768 (erc-cmd-MASSUNBAN)
3769 t)))
3770 (erc-server-send (format "MODE %s b" chnl)))))
3772 (t (let ((bans (mapcar 'cdr erc-channel-banlist)))
3773 (when bans
3774 ;; Glob the bans into groups of three, and carry out the unban.
3775 ;; eg. /mode #foo -bbb a*!*@* b*!*@* c*!*@*
3776 (mapc
3777 (lambda (x)
3778 (erc-server-send
3779 (format "MODE %s -%s %s" (erc-default-target)
3780 (make-string (length x) ?b)
3781 (mapconcat 'identity x " "))))
3782 (erc-group-list bans 3))))
3783 t))))
3785 (defalias 'erc-cmd-MUB 'erc-cmd-MASSUNBAN)
3787 ;;;; End of IRC commands
3789 (defun erc-ensure-channel-name (channel)
3790 "Return CHANNEL if it is a valid channel name.
3791 Eventually add a # in front of it, if that turns it into a valid channel name."
3792 (if (erc-channel-p channel)
3793 channel
3794 (concat "#" channel)))
3796 (defun erc-grab-region (start end)
3797 "Copy the region between START and END in a recreatable format.
3799 Converts all the IRC text properties in each line of the region
3800 into control codes and writes them to a separate buffer. The
3801 resulting text may be used directly as a script to generate this
3802 text again."
3803 (interactive "r")
3804 (erc-set-active-buffer (current-buffer))
3805 (save-excursion
3806 (let* ((cb (current-buffer))
3807 (buf (generate-new-buffer erc-grab-buffer-name))
3808 (region (buffer-substring start end))
3809 (lines (erc-split-multiline-safe region)))
3810 (set-buffer buf)
3811 (dolist (line lines)
3813 (set-buffer cb)
3814 (switch-to-buffer-other-window buf)))
3815 (message "erc-grab-region doesn't grab colors etc. anymore. If you use this, please tell the maintainers.")
3816 (ding))
3818 (defun erc-display-prompt (&optional buffer pos prompt face)
3819 "Display PROMPT in BUFFER at position POS.
3820 Display an ERC prompt in BUFFER.
3822 If PROMPT is nil, one is constructed with the function `erc-prompt'.
3823 If BUFFER is nil, the `current-buffer' is used.
3824 If POS is nil, PROMPT will be displayed at `point'.
3825 If FACE is non-nil, it will be used to propertize the prompt. If it is nil,
3826 `erc-prompt-face' will be used."
3827 (let* ((prompt (or prompt (erc-prompt)))
3828 (l (length prompt))
3829 (ob (current-buffer)))
3830 ;; We cannot use save-excursion because we move point, therefore
3831 ;; we resort to the ol' ob trick to restore this.
3832 (when (and buffer (bufferp buffer))
3833 (set-buffer buffer))
3835 ;; now save excursion again to store where point and mark are
3836 ;; in the current buffer
3837 (save-excursion
3838 (setq pos (or pos (point)))
3839 (goto-char pos)
3840 (when (> l 0)
3841 ;; Do not extend the text properties when typing at the end
3842 ;; of the prompt, but stuff typed in front of the prompt
3843 ;; shall remain part of the prompt.
3844 (setq prompt (erc-propertize prompt
3845 'start-open t ; XEmacs
3846 'rear-nonsticky t ; Emacs
3847 'erc-prompt t
3848 'field t
3849 'front-sticky t
3850 'read-only t))
3851 (erc-put-text-property 0 (1- (length prompt))
3852 'face (or face 'erc-prompt-face)
3853 prompt)
3854 (insert prompt))
3855 ;; Set the input marker
3856 (set-marker erc-input-marker (point)))
3858 ;; Now we are back at the old position. If the prompt was
3859 ;; inserted here or before us, advance point by the length of
3860 ;; the prompt.
3861 (when (or (not pos) (<= (point) pos))
3862 (forward-char l))
3863 ;; Clear the undo buffer now, so the user can undo his stuff,
3864 ;; but not the stuff we did. Sneaky!
3865 (setq buffer-undo-list nil)
3866 (set-buffer ob)))
3868 ;; interactive operations
3870 (defun erc-input-message ()
3871 "Read input from the minibuffer."
3872 (interactive)
3873 (let ((minibuffer-allow-text-properties t)
3874 (read-map minibuffer-local-map))
3875 (insert (read-from-minibuffer "Message: "
3876 (string (if (featurep 'xemacs)
3877 last-command-char
3878 last-command-event))
3879 read-map))
3880 (erc-send-current-line)))
3882 (defvar erc-action-history-list ()
3883 "History list for interactive action input.")
3885 (defun erc-input-action ()
3886 "Interactively input a user action and send it to IRC."
3887 (interactive "")
3888 (erc-set-active-buffer (current-buffer))
3889 (let ((action (read-from-minibuffer
3890 "Action: " nil nil nil 'erc-action-history-list)))
3892 (erc-send-action (erc-default-target) action))))
3894 (defun erc-join-channel (channel &optional key)
3895 "Join CHANNEL.
3897 If `point' is at the beginning of a channel name, use that as default."
3898 (interactive
3899 (list
3901 (table (when (erc-server-buffer-live-p)
3902 (set-buffer (process-buffer erc-server-process))
3903 erc-channel-list)))
3904 (completing-read "Join channel: " table nil nil nil nil chnl))
3905 (when (or current-prefix-arg erc-prompt-for-channel-key)
3906 (read-from-minibuffer "Channel key (RET for none): " nil))))
3907 (erc-cmd-JOIN channel (when (>= (length key) 1) key)))
3909 (defun erc-part-from-channel (reason)
3910 "Part from the current channel and prompt for a REASON."
3911 (interactive
3912 (list
3913 (if (and (boundp 'reason) (stringp reason) (not (string= reason "")))
3914 reason
3915 (read-from-minibuffer (concat "Reason for leaving " (erc-default-target)
3916 ": ")))))
3917 (erc-cmd-PART (concat (erc-default-target)" " reason)))
3919 (defun erc-set-topic (topic)
3920 "Prompt for a TOPIC for the current channel."
3921 (interactive
3922 (list
3923 (read-from-minibuffer
3924 (concat "Set topic of " (erc-default-target) ": ")
3925 (when erc-channel-topic
3926 (let ((ss (split-string erc-channel-topic "\C-o")))
3927 (cons (apply 'concat (if (cdr ss) (butlast ss) ss))
3928 0))))))
3929 (let ((topic-list (split-string topic "\C-o"))) ; strip off the topic setter
3930 (erc-cmd-TOPIC (concat (erc-default-target) " " (car topic-list)))))
3932 (defun erc-set-channel-limit (&optional limit)
3933 "Set a LIMIT for the current channel. Remove limit if nil.
3934 Prompt for one if called interactively."
3935 (interactive (list (read-from-minibuffer
3936 (format "Limit for %s (RET to remove limit): "
3937 (erc-default-target)))))
3938 (let ((tgt (erc-default-target)))
3939 (erc-server-send (if (and limit (>= (length limit) 1))
3940 (format "MODE %s +l %s" tgt limit)
3941 (format "MODE %s -l" tgt)))))
3943 (defun erc-set-channel-key (&optional key)
3944 "Set a KEY for the current channel. Remove key if nil.
3945 Prompt for one if called interactively."
3946 (interactive (list (read-from-minibuffer
3947 (format "Key for %s (RET to remove key): "
3948 (erc-default-target)))))
3949 (let ((tgt (erc-default-target)))
3950 (erc-server-send (if (and key (>= (length key) 1))
3951 (format "MODE %s +k %s" tgt key)
3952 (format "MODE %s -k" tgt)))))
3954 (defun erc-quit-server (reason)
3955 "Disconnect from current server after prompting for REASON.
3956 `erc-quit-reason' works with this just like with `erc-cmd-QUIT'."
3957 (interactive (list (read-from-minibuffer
3958 (format "Reason for quitting %s: "
3959 (or erc-server-announced-name
3960 erc-session-server)))))
3961 (erc-cmd-QUIT reason))
3963 ;; Movement of point
3965 (defun erc-bol ()
3966 "Move `point' to the beginning of the current line.
3968 This places `point' just after the prompt, or at the beginning of the line."
3969 (interactive)
3970 (forward-line 0)
3971 (when (get-text-property (point) 'erc-prompt)
3972 (goto-char erc-input-marker))
3973 (point))
3975 (defun erc-kill-input ()
3976 "Kill current input line using `erc-bol' followed by `kill-line'."
3977 (interactive)
3978 (when (and (erc-bol)
3979 (/= (point) (point-max))) ;; Prevent a (ding) and an error when
3980 ;; there's nothing to kill
3981 (if (boundp 'erc-input-ring-index)
3982 (setq erc-input-ring-index nil))
3983 (kill-line)))
3985 (defun erc-complete-word-at-point ()
3986 (run-hook-with-args-until-success 'erc-complete-functions))
3988 (define-obsolete-function-alias 'erc-complete-word 'completion-at-point "24.1")
3990 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3991 ;;
3992 ;; IRC SERVER INPUT HANDLING
3993 ;;
3994 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3996 ;;;; New Input parsing
3998 ; Stolen from ZenIRC. I just wanna test this code, so here is
3999 ; experiment area.
4001 (defcustom erc-default-server-hook '(erc-debug-missing-hooks
4002 erc-default-server-handler)
4003 "Default for server messages which aren't covered by `erc-server-hooks'."
4004 :group 'erc-server-hooks
4005 :type 'hook)
4007 (defun erc-default-server-handler (proc parsed)
4008 "Default server handler.
4010 Displays PROC and PARSED appropriately using `erc-display-message'."
4011 (erc-display-message
4012 parsed 'notice proc
4013 (mapconcat
4014 'identity
4015 (let (res)
4016 (mapc #'(lambda (x)
4017 (if (stringp x)
4018 (setq res (append res (list x)))))
4019 parsed)
4020 res)
4021 " ")))
4023 (defvar erc-server-vectors
4024 '(["msgtype" "sender" "to" "arg1" "arg2" "arg3" "..."])
4025 "List of received server messages which ERC does not specifically handle.
4026 See `erc-debug-missing-hooks'.")
4027 ;(make-variable-buffer-local 'erc-server-vectors)
4029 (defun erc-debug-missing-hooks (_proc parsed)
4030 "Add PARSED server message ERC does not yet handle to `erc-server-vectors'.
4031 These vectors can be helpful when adding new server message handlers to ERC.
4032 See `erc-default-server-hook'."
4033 (nconc erc-server-vectors (list parsed))
4034 nil)
4036 (defun erc-query (target server)
4037 "Open a query buffer on TARGET, using SERVER.
4038 To change how this query window is displayed, use `let' to bind
4039 `erc-join-buffer' before calling this."
4040 (unless (and server
4041 (buffer-live-p server)
4042 (set-buffer server))
4043 (error "Couldn't switch to server buffer"))
4044 (let ((buf (erc-open erc-session-server
4045 erc-session-port
4046 (erc-current-nick)
4047 erc-session-user-full-name
4048 nil
4049 nil
4050 (list target)
4051 target
4052 erc-server-process)))
4053 (unless buf
4054 (error "Couldn't open query window"))
4055 (erc-update-mode-line)
4056 buf))
4058 (defcustom erc-auto-query 'window-noselect
4059 "If non-nil, create a query buffer each time you receive a private message.
4060 If the buffer doesn't already exist, it is created.
4062 This can be set to a symbol, to control how the new query window
4063 should appear. The default behavior is to display the buffer in
4064 a new window, but not to select it. See the documentation for
4065 `erc-join-buffer' for a description of the available choices."
4066 :group 'erc-query
4067 :type '(choice (const :tag "Don't create query window" nil)
4068 (const :tag "Split window and select" window)
4069 (const :tag "Split window, don't select" window-noselect)
4070 (const :tag "New frame" frame)
4071 (const :tag "Bury in new buffer" bury)
4072 (const :tag "Use current buffer" buffer)
4073 (const :tag "Use current buffer" t)))
4075 (defcustom erc-query-on-unjoined-chan-privmsg t
4076 "If non-nil create query buffer on receiving any PRIVMSG at all.
4077 This includes PRIVMSGs directed to channels. If you are using an IRC
4078 bouncer, such as dircproxy, to keep a log of channels when you are
4079 disconnected, you should set this option to t."
4080 :group 'erc-query
4081 :type 'boolean)
4083 (defcustom erc-format-query-as-channel-p t
4084 "If non-nil, format text from others in a query buffer like in a channel,
4085 otherwise format like a private message."
4086 :group 'erc-query
4087 :type 'boolean)
4089 (defcustom erc-minibuffer-notice nil
4090 "If non-nil, print ERC notices for the user in the minibuffer.
4091 Only happens when the session buffer isn't visible."
4092 :group 'erc-display
4093 :type 'boolean)
4095 (defcustom erc-minibuffer-ignored nil
4096 "If non-nil, print a message in the minibuffer if we ignored something."
4097 :group 'erc-ignore
4098 :type 'boolean)
4100 (defun erc-wash-quit-reason (reason nick login host)
4101 "Remove duplicate text from quit REASON.
4102 Specifically in relation to NICK (user@host) information. Returns REASON
4103 unmodified if nothing can be removed.
4106 (setq nick (regexp-quote nick)
4107 login (regexp-quote login)
4108 host (regexp-quote host))
4112 reason)
4113 (concat (match-string 1 reason) ": " (match-string 2 reason)))
4116 reason)
4117 (match-string 1 reason))
4118 reason))
4120 (defun erc-nickname-in-use (nick reason)
4121 "If NICK is unavailable, tell the user the REASON.
4123 See also `erc-display-error-notice'."
4124 (if (or (not erc-try-new-nick-p)
4125 ;; how many default-nicks are left + one more try...
4126 (eq erc-nick-change-attempt-count
4127 (if (consp erc-nick)
4128 (+ (length erc-nick) 1)
4129 1)))
4130 (erc-display-error-notice
4131 nil
4132 (format "Nickname %s is %s, try another." nick reason))
4133 (setq erc-nick-change-attempt-count (+ erc-nick-change-attempt-count 1))
4134 (let ((newnick (nth 1 erc-default-nicks))
4135 (nicklen (cdr (assoc "NICKLEN"
4136 (erc-with-server-buffer
4137 erc-server-parameters)))))
4138 (setq erc-bad-nick t)
4139 ;; try to use a different nick
4140 (if erc-default-nicks
4141 (setq erc-default-nicks (cdr erc-default-nicks)))
4142 (if (not newnick)
4143 (setq newnick (concat (truncate-string-to-width
4144 nick
4145 (if (and erc-server-connected nicklen)
4146 (- (string-to-number nicklen)
4147 (length erc-nick-uniquifier))
4148 ;; rfc2812 max nick length = 9
4149 ;; we must assume this is the
4150 ;; server's setting if we haven't
4151 ;; established a connection yet
4152 (- 9 (length erc-nick-uniquifier))))
4153 erc-nick-uniquifier)))
4154 (erc-cmd-NICK newnick)
4155 (erc-display-error-notice
4156 nil
4157 (format "Nickname %s is %s, trying %s"
4158 nick reason newnick)))))
4160 ;;; Server messages
4162 (defgroup erc-server-hooks nil
4163 "Server event callbacks.
4164 Every server event - like numeric replies - has its own hook.
4165 Those hooks are all called using `run-hook-with-args-until-success'.
4166 They receive as first argument the process object from where the event
4167 originated from,
4168 and as second argument the event parsed as a vector."
4169 :group 'erc-hooks)
4171 (defun erc-display-server-message (_proc parsed)
4172 "Display the message sent by the server as a notice."
4173 (erc-display-message
4174 parsed 'notice 'active (erc-response.contents parsed)))
4176 (defun erc-auto-query (proc parsed)
4177 ;; FIXME: This needs more documentation, unless it's not a user function --
4178 ;; Lawrence 2004-01-08
4179 "Put this on `erc-server-PRIVMSG-functions'."
4180 (when erc-auto-query
4181 (let* ((nick (car (erc-parse-user (erc-response.sender parsed))))
4182 (target (car (erc-response.command-args parsed)))
4183 (msg (erc-response.contents parsed))
4184 (query (if (not erc-query-on-unjoined-chan-privmsg)
4185 nick
4186 (if (erc-current-nick-p target)
4187 nick
4188 target))))
4189 (and (not (erc-ignored-user-p (erc-response.sender parsed)))
4190 (or erc-query-on-unjoined-chan-privmsg
4191 (string= target (erc-current-nick)))
4192 (not (erc-get-buffer query proc))
4193 (not (erc-is-message-ctcp-and-not-action-p msg))
4194 (let ((erc-query-display erc-auto-query))
4195 (erc-cmd-QUERY query))
4196 nil))))
4198 (defun erc-is-message-ctcp-p (message)
4199 "Check if MESSAGE is a CTCP message or not."
4202 (defun erc-is-message-ctcp-and-not-action-p (message)
4203 "Check if MESSAGE is a CTCP message or not."
4204 (and (erc-is-message-ctcp-p message)
4207 (defun erc-format-privmessage (nick msg privp msgp)
4208 "Format a PRIVMSG in an insertable fashion."
4209 (let* ((mark-s (if msgp (if privp "*" "<") "-"))
4210 (mark-e (if msgp (if privp "*" ">") "-"))
4211 (str (format "%s%s%s %s" mark-s nick mark-e msg))
4212 (nick-face (if privp 'erc-nick-msg-face 'erc-nick-default-face))
4213 (msg-face (if privp 'erc-direct-msg-face 'erc-default-face)))
4214 ;; add text properties to text before the nick, the nick and after the nick
4215 (erc-put-text-property 0 (length mark-s) 'face msg-face str)
4216 (erc-put-text-property (length mark-s) (+ (length mark-s) (length nick))
4217 'face nick-face str)
4218 (erc-put-text-property (+ (length mark-s) (length nick)) (length str)
4219 'face msg-face str)
4220 str))
4222 (defcustom erc-format-nick-function 'erc-format-nick
4223 "Function to format a nickname for message display."
4224 :group 'erc-display
4225 :type 'function)
4227 (defun erc-format-nick (&optional user _channel-data)
4228 "Return the nickname of USER.
4229 See also `erc-format-nick-function'."
4230 (let ((nick (erc-server-user-nickname user)))
4231 (concat (erc-propertize
4232 (erc-get-user-mode-prefix nick)
4233 'face 'erc-nick-prefix-face)
4234 nick)))
4236 (defun erc-get-user-mode-prefix (user)
4237 (when user
4238 (cond ((erc-channel-user-owner-p user)
4239 (erc-propertize "~" 'help-echo "owner"))
4240 ((erc-channel-user-admin-p user)
4241 (erc-propertize "&" 'help-echo "admin"))
4242 ((erc-channel-user-op-p user)
4243 (erc-propertize "@" 'help-echo "operator"))
4244 ((erc-channel-user-halfop-p user)
4245 (erc-propertize "%" 'help-echo "half-op"))
4246 ((erc-channel-user-voice-p user)
4247 (erc-propertize "+" 'help-echo "voice"))
4248 (t ""))))
4250 (defun erc-format-@nick (&optional user channel-data)
4251 "Format the nickname of USER showing if USER has a voice, is an
4254 prefix. Use CHANNEL-DATA to determine op and voice status. See
4255 also `erc-format-nick-function'."
4256 (when user
4257 (let ((nick (erc-server-user-nickname user)))
4258 (concat (erc-propertize
4259 (erc-get-user-mode-prefix nick)
4260 'face 'erc-nick-prefix-face)
4261 nick))))
4263 (defun erc-format-my-nick ()
4264 "Return the beginning of this user's message, correctly propertized."
4265 (if erc-show-my-nick
4266 (let* ((open "<")
4267 (close "> ")
4268 (nick (erc-current-nick))
4269 (mode (erc-get-user-mode-prefix nick)))
4270 (concat
4271 (erc-propertize open 'face 'erc-default-face)
4272 (erc-propertize mode 'face 'erc-my-nick-prefix-face)
4273 (erc-propertize nick 'face 'erc-my-nick-face)
4274 (erc-propertize close 'face 'erc-default-face)))
4275 (let ((prefix "> "))
4276 (erc-propertize prefix 'face 'erc-default-face))))
4278 (defun erc-echo-notice-in-default-buffer (s parsed buffer _sender)
4279 "Echos a private notice in the default buffer, namely the
4280 target buffer specified by BUFFER, or there is no target buffer,
4281 the server buffer. This function is designed to be added to
4282 either `erc-echo-notice-hook' or `erc-echo-notice-always-hook',
4283 and always returns t."
4284 (erc-display-message parsed nil buffer s)
4285 t)
4287 (defun erc-echo-notice-in-target-buffer (s parsed buffer _sender)
4288 "Echos a private notice in BUFFER, if BUFFER is non-nil. This
4289 function is designed to be added to either `erc-echo-notice-hook'
4290 or `erc-echo-notice-always-hook', and returns non-nil if BUFFER
4291 is non-nil."
4292 (if buffer
4293 (progn (erc-display-message parsed nil buffer s) t)
4294 nil))
4296 (defun erc-echo-notice-in-minibuffer (s _parsed _buffer _sender)
4297 "Echos a private notice in the minibuffer. This function is
4298 designed to be added to either `erc-echo-notice-hook' or
4299 `erc-echo-notice-always-hook', and always returns t."
4300 (message "%s" (concat "NOTICE: " s))
4301 t)
4303 (defun erc-echo-notice-in-server-buffer (s parsed _buffer _sender)
4304 "Echos a private notice in the server buffer. This function is
4305 designed to be added to either `erc-echo-notice-hook' or
4306 `erc-echo-notice-always-hook', and always returns t."
4307 (erc-display-message parsed nil nil s)
4308 t)
4310 (defun erc-echo-notice-in-active-non-server-buffer (s parsed _buffer _sender)
4311 "Echos a private notice in the active buffer if the active
4312 buffer is not the server buffer. This function is designed to be
4313 added to either `erc-echo-notice-hook' or
4314 `erc-echo-notice-always-hook', and returns non-nil if the active
4315 buffer is not the server buffer."
4316 (if (not (eq (erc-server-buffer) (erc-active-buffer)))
4317 (progn (erc-display-message parsed nil 'active s) t)
4318 nil))
4320 (defun erc-echo-notice-in-active-buffer (s parsed _buffer _sender)
4321 "Echos a private notice in the active buffer. This function is
4322 designed to be added to either `erc-echo-notice-hook' or
4323 `erc-echo-notice-always-hook', and always returns t."
4324 (erc-display-message parsed nil 'active s)
4325 t)
4327 (defun erc-echo-notice-in-user-buffers (s parsed _buffer sender)
4328 "Echos a private notice in all of the buffers for which SENDER
4329 is a member. This function is designed to be added to either
4330 `erc-echo-notice-hook' or `erc-echo-notice-always-hook', and
4331 returns non-nil if there is at least one buffer for which the
4332 sender is a member.
4334 See also: `erc-echo-notice-in-first-user-buffer',
4335 `erc-buffer-list-with-nick'."
4336 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
4337 (if buffers
4338 (progn (erc-display-message parsed nil buffers s) t)
4339 nil)))
4341 (defun erc-echo-notice-in-user-and-target-buffers (s parsed buffer sender)
4342 "Echos a private notice in BUFFER and in all of the buffers for
4343 which SENDER is a member. This function is designed to be added
4344 to either `erc-echo-notice-hook' or
4345 `erc-echo-notice-always-hook', and returns non-nil if there is
4346 at least one buffer for which the sender is a member or the
4347 default target.
4349 See also: `erc-echo-notice-in-user-buffers',
4350 `erc-buffer-list-with-nick'."
4351 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
4352 (unless (memq buffer buffers) (push buffer buffers))
4353 (if buffers ;FIXME: How could it be nil?
4354 (progn (erc-display-message parsed nil buffers s) t)
4355 nil)))
4357 (defun erc-echo-notice-in-first-user-buffer (s parsed _buffer sender)
4358 "Echos a private notice in one of the buffers for which SENDER
4359 is a member. This function is designed to be added to either
4360 `erc-echo-notice-hook' or `erc-echo-notice-always-hook', and
4361 returns non-nil if there is at least one buffer for which the
4362 sender is a member.
4364 See also: `erc-echo-notice-in-user-buffers',
4365 `erc-buffer-list-with-nick'."
4366 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
4367 (if buffers
4368 (progn (erc-display-message parsed nil (car buffers) s) t)
4369 nil)))
4371 ;;; Ban manipulation
4373 (defun erc-banlist-store (proc parsed)
4374 "Record ban entries for a channel."
4375 (pcase-let ((`(,channel ,mask ,whoset)
4376 (cdr (erc-response.command-args parsed))))
4377 ;; Determine to which buffer the message corresponds
4378 (let ((buffer (erc-get-buffer channel proc)))
4379 (with-current-buffer buffer
4380 (unless (member (cons whoset mask) erc-channel-banlist)
4381 (setq erc-channel-banlist (cons (cons whoset mask)
4382 erc-channel-banlist))))))
4383 nil)
4385 (defun erc-banlist-finished (proc parsed)
4386 "Record that we have received the banlist."
4387 (let* ((channel (nth 1 (erc-response.command-args parsed)))
4388 (buffer (erc-get-buffer channel proc)))
4389 (with-current-buffer buffer
4390 (put 'erc-channel-banlist 'received-from-server t)))
4391 t) ; suppress the 'end of banlist' message
4393 (defun erc-banlist-update (proc parsed)
4394 "Check MODE commands for bans and update the banlist appropriately."
4395 ;; FIXME: Possibly incorrect. -- Lawrence 2004-05-11
4396 (let* ((tgt (car (erc-response.command-args parsed)))
4397 (mode (erc-response.contents parsed))
4398 (whoset (erc-response.sender parsed))
4399 (buffer (erc-get-buffer tgt proc)))
4400 (when buffer
4401 (with-current-buffer buffer
4402 (cond ((not (get 'erc-channel-banlist 'received-from-server)) nil)
4404 ;; This is a ban
4405 (cond
4406 ((string-match "^-" mode)
4407 ;; Remove the unbanned masks from the ban list
4408 (setq erc-channel-banlist
4409 (erc-delete-if
4410 #'(lambda (y)
4411 (member (upcase (cdr y))
4412 (mapcar #'upcase
4413 (cdr (split-string mode)))))
4414 erc-channel-banlist)))
4415 ((string-match "^+" mode)
4416 ;; Add the banned mask(s) to the ban list
4417 (mapc
4418 (lambda (mask)
4419 (unless (member (cons whoset mask) erc-channel-banlist)
4420 (setq erc-channel-banlist
4421 (cons (cons whoset mask) erc-channel-banlist))))
4422 (cdr (split-string mode))))))))))
4423 nil)
4425 ;; used for the banlist cmds
4426 (defun erc-group-list (list n)
4427 "Group LIST into sublists of length N."
4428 (cond ((null list) nil)
4429 ((null (nthcdr n list)) (list list))
4430 (t (cons (erc-subseq list 0 n) (erc-group-list (nthcdr n list) n)))))
4433 ;;; MOTD numreplies
4435 (defun erc-handle-login ()
4436 "Handle the logging in process of connection."
4437 (unless erc-logged-in
4438 (setq erc-logged-in t)
4440 ;; execute a startup script
4441 (let ((f (erc-select-startup-file)))
4442 (when f
4443 (erc-load-script f)))))
4445 (defun erc-connection-established (proc parsed)
4446 "Run just after connection.
4448 Set user modes and run `erc-after-connect' hook."
4449 (with-current-buffer (process-buffer proc)
4450 (unless erc-server-connected ; only once per session
4451 (let ((server (or erc-server-announced-name
4452 (erc-response.sender parsed)))
4453 (nick (car (erc-response.command-args parsed)))
4454 (buffer (process-buffer proc)))
4455 (setq erc-server-connected t)
4456 (erc-update-mode-line)
4457 (erc-set-initial-user-mode nick buffer)
4458 (erc-server-setup-periodical-ping buffer)
4459 (run-hook-with-args 'erc-after-connect server nick)))))
4461 (defun erc-set-initial-user-mode (nick buffer)
4462 "If `erc-user-mode' is non-nil for NICK, set the user modes.
4463 The server buffer is given by BUFFER."
4464 (with-current-buffer buffer
4465 (when erc-user-mode
4466 (let ((mode (if (functionp erc-user-mode)
4467 (funcall erc-user-mode)
4468 erc-user-mode)))
4469 (when (stringp mode)
4470 (erc-log (format "changing mode for %s to %s" nick mode))
4471 (erc-server-send (format "MODE %s %s" nick mode)))))))
4473 (defun erc-display-error-notice (parsed string)
4474 "Display STRING as an error notice.
4476 See also `erc-display-message'."
4477 (erc-display-message
4478 parsed '(notice error) 'active string))
4480 (defun erc-process-ctcp-query (proc parsed nick login host)
4481 ;; FIXME: This needs a proper docstring -- Lawrence 2004-01-08
4482 "Process a CTCP query."
4483 (let ((queries (delete "" (split-string (erc-response.contents parsed)
4484 "\C-a"))))
4485 (if (> (length queries) 4)
4486 (erc-display-message
4487 parsed (list 'notice 'error) proc 'ctcp-too-many)
4488 (if (= 0 (length queries))
4489 (erc-display-message
4490 parsed (list 'notice 'error) proc
4491 'ctcp-empty ?n nick)
4492 (while queries
4493 (let* ((type (upcase (car (split-string (car queries)))))
4494 (hook (intern-soft (concat "erc-ctcp-query-" type "-hook"))))
4495 (if (and hook (boundp hook))
4496 (if (string-equal type "ACTION")
4497 (run-hook-with-args-until-success
4498 hook proc parsed nick login host
4499 (car (erc-response.command-args parsed))
4500 (car queries))
4501 (when erc-paranoid
4502 (if (erc-current-nick-p
4503 (car (erc-response.command-args parsed)))
4504 (erc-display-message
4505 parsed 'error 'active 'ctcp-request
4506 ?n nick ?u login ?h host ?r (car queries))
4507 (erc-display-message
4508 parsed 'error 'active 'ctcp-request-to
4509 ?n nick ?u login ?h host ?r (car queries)
4510 ?t (car (erc-response.command-args parsed)))))
4511 (run-hook-with-args-until-success
4512 hook proc nick login host
4513 (car (erc-response.command-args parsed))
4514 (car queries)))
4515 (erc-display-message
4516 parsed (list 'notice 'error) proc
4517 'undefined-ctcp)))
4518 (setq queries (cdr queries)))))))
4520 (defvar erc-ctcp-query-ACTION-hook '(erc-ctcp-query-ACTION))
4522 (defun erc-ctcp-query-ACTION (proc parsed nick login host to msg)
4523 "Respond to a CTCP ACTION query."
4525 (let ((s (match-string 1 msg))
4526 (buf (or (erc-get-buffer to proc)
4527 (erc-get-buffer nick proc)
4528 (process-buffer proc))))
4529 (erc-display-message
4530 parsed 'action buf
4531 'ACTION ?n nick ?u login ?h host ?a s))))
4533 (defvar erc-ctcp-query-CLIENTINFO-hook '(erc-ctcp-query-CLIENTINFO))
4535 (defun erc-ctcp-query-CLIENTINFO (_proc nick _login _host _to msg)
4536 "Respond to a CTCP CLIENTINFO query."
4538 (let ((s (erc-client-info (erc-trim-string (match-string 1 msg)))))
4539 (unless erc-disable-ctcp-replies
4540 (erc-send-ctcp-notice nick (format "CLIENTINFO %s" s)))))
4541 nil)
4543 (defvar erc-ctcp-query-ECHO-hook '(erc-ctcp-query-ECHO))
4544 (defun erc-ctcp-query-ECHO (_proc nick _login _host _to msg)
4545 "Respond to a CTCP ECHO query."
4547 (let ((s (match-string 1 msg)))
4548 (unless erc-disable-ctcp-replies
4549 (erc-send-ctcp-notice nick (format "ECHO %s" s)))))
4550 nil)
4552 (defvar erc-ctcp-query-FINGER-hook '(erc-ctcp-query-FINGER))
4553 (defun erc-ctcp-query-FINGER (_proc nick _login _host _to _msg)
4554 "Respond to a CTCP FINGER query."
4555 (unless erc-disable-ctcp-replies
4556 (let ((s (if erc-anonymous-login
4557 (format "FINGER I'm %s." (erc-current-nick))
4558 (format "FINGER %s (%s@%s)."
4559 (user-full-name)
4560 (user-login-name)
4561 (system-name))))
4562 (ns (erc-time-diff erc-server-last-sent-time (erc-current-time))))
4563 (when (> ns 0)
4564 (setq s (concat s " Idle for " (erc-sec-to-time ns))))
4565 (erc-send-ctcp-notice nick s)))
4566 nil)
4568 (defvar erc-ctcp-query-PING-hook '(erc-ctcp-query-PING))
4569 (defun erc-ctcp-query-PING (_proc nick _login _host _to msg)
4570 "Respond to a CTCP PING query."
4572 (unless erc-disable-ctcp-replies
4573 (let ((arg (match-string 1 msg)))
4574 (erc-send-ctcp-notice nick (format "PING %s" arg)))))
4575 nil)
4577 (defvar erc-ctcp-query-TIME-hook '(erc-ctcp-query-TIME))
4578 (defun erc-ctcp-query-TIME (_proc nick _login _host _to _msg)
4579 "Respond to a CTCP TIME query."
4580 (unless erc-disable-ctcp-replies
4581 (erc-send-ctcp-notice nick (format "TIME %s" (current-time-string))))
4582 nil)
4584 (defvar erc-ctcp-query-USERINFO-hook '(erc-ctcp-query-USERINFO))
4585 (defun erc-ctcp-query-USERINFO (_proc nick _login _host _to _msg)
4586 "Respond to a CTCP USERINFO query."
4587 (unless erc-disable-ctcp-replies
4588 (erc-send-ctcp-notice nick (format "USERINFO %s" erc-user-information)))
4589 nil)
4591 (defvar erc-ctcp-query-VERSION-hook '(erc-ctcp-query-VERSION))
4592 (defun erc-ctcp-query-VERSION (_proc nick _login _host _to _msg)
4593 "Respond to a CTCP VERSION query."
4594 (unless erc-disable-ctcp-replies
4595 (erc-send-ctcp-notice
4596 nick (format
4597 "VERSION \C-bERC\C-b %s - an IRC client for emacs (\C-b%s\C-b)"
4598 erc-version-string
4599 erc-official-location)))
4600 nil)
4602 (defun erc-process-ctcp-reply (proc parsed nick login host msg)
4603 "Process MSG as a CTCP reply."
4604 (let* ((type (car (split-string msg)))
4605 (hook (intern (concat "erc-ctcp-reply-" type "-hook"))))
4606 (if (boundp hook)
4607 (run-hook-with-args-until-success
4608 hook proc nick login host
4609 (car (erc-response.command-args parsed)) msg)
4610 (erc-display-message
4611 parsed 'notice 'active
4612 'CTCP-UNKNOWN ?n nick ?u login ?h host ?m msg))))
4614 (defvar erc-ctcp-reply-ECHO-hook '(erc-ctcp-reply-ECHO))
4615 (defun erc-ctcp-reply-ECHO (_proc nick _login _host _to msg)
4616 "Handle a CTCP ECHO reply."
4618 (let ((message (match-string 1 msg)))
4619 (erc-display-message
4620 nil '(notice action) 'active
4621 'CTCP-ECHO ?n nick ?m message)))
4622 nil)
4624 (defvar erc-ctcp-reply-CLIENTINFO-hook '(erc-ctcp-reply-CLIENTINFO))
4625 (defun erc-ctcp-reply-CLIENTINFO (_proc nick _login _host _to msg)
4626 "Handle a CTCP CLIENTINFO reply."
4628 (let ((message (match-string 1 msg)))
4629 (erc-display-message
4630 nil 'notice 'active
4631 'CTCP-CLIENTINFO ?n nick ?m message)))
4632 nil)
4634 (defvar erc-ctcp-reply-FINGER-hook '(erc-ctcp-reply-FINGER))
4635 (defun erc-ctcp-reply-FINGER (_proc nick _login _host _to msg)
4636 "Handle a CTCP FINGER reply."
4638 (let ((message (match-string 1 msg)))
4639 (erc-display-message
4640 nil 'notice 'active
4641 'CTCP-FINGER ?n nick ?m message)))
4642 nil)
4644 (defvar erc-ctcp-reply-PING-hook '(erc-ctcp-reply-PING))
4645 (defun erc-ctcp-reply-PING (_proc nick _login _host _to msg)
4646 "Handle a CTCP PING reply."
4648 nil
4649 (let ((time (match-string 1 msg)))
4650 (condition-case nil
4651 (let ((delta (erc-time-diff (string-to-number time)
4652 (erc-current-time))))
4653 (erc-display-message
4654 nil 'notice 'active
4655 'CTCP-PING ?n nick
4656 ?t (erc-sec-to-time delta)))
4657 (range-error
4658 (erc-display-message
4659 nil 'error 'active
4660 'bad-ping-response ?n nick ?t time))))))
4662 (defvar erc-ctcp-reply-TIME-hook '(erc-ctcp-reply-TIME))
4663 (defun erc-ctcp-reply-TIME (_proc nick _login _host _to msg)
4664 "Handle a CTCP TIME reply."
4666 (let ((message (match-string 1 msg)))
4667 (erc-display-message
4668 nil 'notice 'active
4669 'CTCP-TIME ?n nick ?m message)))
4670 nil)
4672 (defvar erc-ctcp-reply-VERSION-hook '(erc-ctcp-reply-VERSION))
4673 (defun erc-ctcp-reply-VERSION (_proc nick _login _host _to msg)
4674 "Handle a CTCP VERSION reply."
4676 (let ((message (match-string 1 msg)))
4677 (erc-display-message
4678 nil 'notice 'active
4679 'CTCP-VERSION ?n nick ?m message)))
4680 nil)
4682 (defun erc-process-away (proc away-p)
4683 "Toggle the away status of the user depending on the value of AWAY-P.
4685 If nil, set the user as away.
4686 If non-nil, return from being away."
4687 (let ((sessionbuf (process-buffer proc)))
4688 (when sessionbuf
4689 (with-current-buffer sessionbuf
4690 (when erc-away-nickname
4691 (erc-log (format "erc-process-away: away-nick: %s, away-p: %s"
4692 erc-away-nickname away-p))
4693 (erc-cmd-NICK (if away-p
4694 erc-away-nickname
4695 erc-nick)))
4696 (cond
4697 (away-p
4698 (setq erc-away (current-time)))
4699 (t
4700 (let ((away-time erc-away))
4701 ;; away must be set to NIL BEFORE sending anything to prevent
4702 ;; an infinite recursion
4703 (setq erc-away nil)
4704 (with-current-buffer (erc-active-buffer)
4705 (when erc-public-away-p
4706 (erc-send-action
4707 (erc-default-target)
4708 (if away-time
4709 (format "is back (gone for %s)"
4710 (erc-sec-to-time
4711 (erc-time-diff
4712 (erc-emacs-time-to-erc-time away-time)
4713 (erc-current-time))))
4714 "is back")))))))))
4715 (erc-update-mode-line)))
4717 ;;;; List of channel members handling
4719 (defun erc-channel-begin-receiving-names ()
4720 "Internal function.
4722 Used when a channel names list is about to be received. Should
4723 be called with the current buffer set to the channel buffer.
4725 See also `erc-channel-end-receiving-names'."
4726 (setq erc-channel-new-member-names (make-hash-table :test 'equal)))
4728 (defun erc-channel-end-receiving-names ()
4729 "Internal function.
4731 Used to fix `erc-channel-users' after a channel names list has been
4732 received. Should be called with the current buffer set to the
4733 channel buffer.
4735 See also `erc-channel-begin-receiving-names'."
4736 (maphash (lambda (nick _user)
4737 (if (null (gethash nick erc-channel-new-member-names))
4738 (erc-remove-channel-user nick)))
4739 erc-channel-users)
4740 (setq erc-channel-new-member-names nil))
4742 (defun erc-parse-prefix ()
4743 "Return an alist of valid prefix character types and their representations.
4744 Example: (operator) o => @, (voiced) v => +."
4745 (let ((str (or (cdr (assoc "PREFIX" (erc-with-server-buffer
4746 erc-server-parameters)))
4747 ;; provide a sane default
4748 "(qaohv)~&@%+"))
4749 types chars)
4751 (setq types (match-string 1 str)
4752 chars (match-string 2 str))
4753 (let ((len (min (length types) (length chars)))
4754 (i 0)
4755 (alist nil))
4756 (while (< i len)
4757 (setq alist (cons (cons (elt types i) (elt chars i))
4758 alist))
4759 (setq i (1+ i)))
4760 alist))))
4762 (defun erc-channel-receive-names (names-string)
4763 "This function is for internal use only.
4765 Update `erc-channel-users' according to NAMES-STRING.
4766 NAMES-STRING is a string listing some of the names on the
4767 channel."
4768 (let* ((prefix (erc-parse-prefix))
4769 (voice-ch (cdr (assq ?v prefix)))
4770 (op-ch (cdr (assq ?o prefix)))
4771 (hop-ch (cdr (assq ?h prefix)))
4772 (adm-ch (cdr (assq ?a prefix)))
4773 (own-ch (cdr (assq ?q prefix)))
4774 names name op voice halfop admin owner)
4775 (setq names (delete "" (split-string names-string)))
4776 (let ((erc-channel-members-changed-hook nil))
4777 (dolist (item names)
4778 (let ((updatep t))
4779 (setq name item op 'off voice 'off halfop 'off admin 'off owner 'off)
4780 (if (rassq (elt item 0) prefix)
4781 (if (= (length item) 1)
4782 (setq updatep nil)
4783 (setq name (substring item 1))
4784 (setf (pcase (aref item 0)
4785 ((pred (eq voice-ch)) voice)
4786 ((pred (eq hop-ch)) halfop)
4787 ((pred (eq op-ch)) op)
4788 ((pred (eq adm-ch)) admin)
4789 ((pred (eq own-ch)) owner))
4790 'on)))
4791 (when updatep
4792 (puthash (erc-downcase name) t
4793 erc-channel-new-member-names)
4794 (erc-update-current-channel-member
4795 name name t voice halfop op admin owner)))))
4796 (run-hooks 'erc-channel-members-changed-hook)))
4799 (defcustom erc-channel-members-changed-hook nil
4800 "This hook is called every time the variable `channel-members' changes.
4801 The buffer where the change happened is current while this hook is called."
4802 :group 'erc-hooks
4803 :type 'hook)
4805 (defun erc-update-user-nick (nick &optional new-nick
4806 host login full-name info)
4807 "Update the stored user information for the user with nickname NICK.
4809 See also: `erc-update-user'."
4810 (erc-update-user (erc-get-server-user nick) new-nick
4811 host login full-name info))
4813 (defun erc-update-user (user &optional new-nick
4814 host login full-name info)
4815 "Update user info for USER. USER must be an erc-server-user
4816 struct. Any of NEW-NICK, HOST, LOGIN, FULL-NAME, INFO which are
4817 non-nil and not equal to the existing values for USER are used to
4818 replace the stored values in USER.
4820 If, and only if, a change is made,
4821 `erc-channel-members-changed-hook' is run for each channel for
4822 which USER is a member, and t is returned."
4823 (let (changed)
4824 (when user
4825 (when (and new-nick
4826 (not (equal (erc-server-user-nickname user)
4827 new-nick)))
4828 (setq changed t)
4829 (erc-change-user-nickname user new-nick))
4830 (when (and host
4831 (not (equal (erc-server-user-host user) host)))
4832 (setq changed t)
4833 (setf (erc-server-user-host user) host))
4834 (when (and login
4835 (not (equal (erc-server-user-login user) login)))
4836 (setq changed t)
4837 (setf (erc-server-user-login user) login))
4838 (when (and full-name
4839 (not (equal (erc-server-user-full-name user)
4840 full-name)))
4841 (setq changed t)
4842 (setf (erc-server-user-full-name user) full-name))
4843 (when (and info
4844 (not (equal (erc-server-user-info user) info)))
4845 (setq changed t)
4846 (setf (erc-server-user-info user) info))
4847 (if changed
4848 (dolist (buf (erc-server-user-buffers user))
4849 (if (buffer-live-p buf)
4850 (with-current-buffer buf
4851 (run-hooks 'erc-channel-members-changed-hook))))))
4852 changed))
4854 (defun erc-update-current-channel-member
4855 (nick new-nick &optional add voice halfop op admin owner host login full-name info
4856 update-message-time)
4857 "Update the stored user information for the user with nickname NICK.
4858 `erc-update-user' is called to handle changes to nickname,
4859 HOST, LOGIN, FULL-NAME, and INFO. If VOICE HALFOP OP ADMIN or OWNER
4860 are non-nil, they must be equal to either `on' or `off', in which
4861 case the status of the user in the current channel is changed accordingly.
4862 If UPDATE-MESSAGE-TIME is non-nil, the last-message-time of the user
4863 in the current channel is set to (current-time).
4865 If ADD is non-nil, the user will be added with the specified
4866 information if it is not already present in the user or channel
4867 lists.
4869 If, and only if, changes are made, or the user is added,
4870 `erc-channel-members-updated-hook' is run, and t is returned.
4872 See also: `erc-update-user' and `erc-update-channel-member'."
4873 (let* (changed user-changed
4874 (channel-data (erc-get-channel-user nick))
4875 (cuser (cdr channel-data))
4876 (user (if channel-data (car channel-data)
4877 (erc-get-server-user nick))))
4878 (if cuser
4879 (progn
4880 (erc-log (format "update-member: user = %S, cuser = %S" user cuser))
4881 (when (and voice
4882 (not (eq (erc-channel-user-voice cuser) voice)))
4883 (setq changed t)
4884 (setf (erc-channel-user-voice cuser)
4885 (cond ((eq voice 'on) t)
4886 ((eq voice 'off) nil)
4887 (t voice))))
4888 (when (and halfop
4889 (not (eq (erc-channel-user-halfop cuser) halfop)))
4890 (setq changed t)
4891 (setf (erc-channel-user-halfop cuser)
4892 (cond ((eq halfop 'on) t)
4893 ((eq halfop 'off) nil)
4894 (t halfop))))
4895 (when (and op
4896 (not (eq (erc-channel-user-op cuser) op)))
4897 (setq changed t)
4898 (setf (erc-channel-user-op cuser)
4899 (cond ((eq op 'on) t)
4900 ((eq op 'off) nil)
4901 (t op))))
4902 (when (and admin
4903 (not (eq (erc-channel-user-admin cuser) admin)))
4904 (setq changed t)
4905 (setf (erc-channel-user-admin cuser)
4906 (cond ((eq admin 'on) t)
4907 ((eq admin 'off) nil)
4908 (t admin))))
4909 (when (and owner
4910 (not (eq (erc-channel-user-owner cuser) owner)))
4911 (setq changed t)
4912 (setf (erc-channel-user-owner cuser)
4913 (cond ((eq owner 'on) t)
4914 ((eq owner 'off) nil)
4915 (t owner))))
4916 (when update-message-time
4917 (setf (erc-channel-user-last-message-time cuser) (current-time)))
4918 (setq user-changed
4919 (erc-update-user user new-nick
4920 host login full-name info)))
4921 (when add
4922 (if (null user)
4923 (progn
4924 (setq user (make-erc-server-user
4925 :nickname nick
4926 :host host
4927 :full-name full-name
4928 :login login
4929 :info info
4930 :buffers (list (current-buffer))))
4931 (erc-add-server-user nick user))
4932 (setf (erc-server-user-buffers user)
4933 (cons (current-buffer)
4934 (erc-server-user-buffers user))))
4935 (setq cuser (make-erc-channel-user
4936 :voice (cond ((eq voice 'on) t)
4937 ((eq voice 'off) nil)
4938 (t voice))
4939 :halfop (cond ((eq halfop 'on) t)
4940 ((eq halfop 'off) nil)
4941 (t halfop))
4942 :op (cond ((eq op 'on) t)
4943 ((eq op 'off) nil)
4944 (t op))
4945 :admin (cond ((eq admin 'on) t)
4946 ((eq admin 'off) nil)
4947 (t admin))
4948 :owner (cond ((eq owner 'on) t)
4949 ((eq owner 'off) nil)
4950 (t owner))
4951 :last-message-time
4952 (if update-message-time (current-time))))
4953 (puthash (erc-downcase nick) (cons user cuser)
4954 erc-channel-users)
4955 (setq changed t)))
4956 (when (and changed (null user-changed))
4957 (run-hooks 'erc-channel-members-changed-hook))
4958 (or changed user-changed add)))
4960 (defun erc-update-channel-member (channel nick new-nick
4961 &optional add voice halfop op admin owner host login
4962 full-name info update-message-time)
4963 "Update user and channel information for the user with
4964 nickname NICK in channel CHANNEL.
4966 See also: `erc-update-current-channel-member'."
4967 (erc-with-buffer
4968 (channel)
4969 (erc-update-current-channel-member nick new-nick add voice halfop op admin owner host
4970 login full-name info
4971 update-message-time)))
4973 (defun erc-remove-current-channel-member (nick)
4974 "Remove NICK from current channel membership list.
4975 Runs `erc-channel-members-changed-hook'."
4976 (let ((channel-data (erc-get-channel-user nick)))
4977 (when channel-data
4978 (erc-remove-channel-user nick)
4979 (run-hooks 'erc-channel-members-changed-hook))))
4981 (defun erc-remove-channel-member (channel nick)
4982 "Remove NICK from CHANNEL's membership list.
4984 See also `erc-remove-current-channel-member'."
4985 (erc-with-buffer
4986 (channel)
4987 (erc-remove-current-channel-member nick)))
4989 (defun erc-update-channel-topic (channel topic &optional modify)
4990 "Find a buffer for CHANNEL and set the TOPIC for it.
4992 If optional MODIFY is 'append or 'prepend, then append or prepend the
4993 TOPIC string to the current topic."
4994 (erc-with-buffer (channel)
4995 (cond ((eq modify 'append)
4996 (setq erc-channel-topic (concat erc-channel-topic topic)))
4997 ((eq modify 'prepend)
4998 (setq erc-channel-topic (concat topic erc-channel-topic)))
4999 (t (setq erc-channel-topic topic)))
5000 (erc-update-mode-line-buffer (current-buffer))))
5002 (defun erc-set-modes (tgt mode-string)
5003 "Set the modes for the TGT provided as MODE-STRING."
5004 (let* ((modes (erc-parse-modes mode-string))
5005 (add-modes (nth 0 modes))
5006 ;; list of triples: (mode-char 'on/'off argument)
5007 (arg-modes (nth 2 modes)))
5008 (cond ((erc-channel-p tgt); channel modes
5009 (let ((buf (and erc-server-process
5010 (erc-get-buffer tgt erc-server-process))))
5011 (when buf
5012 (with-current-buffer buf
5013 (setq erc-channel-modes add-modes)
5014 (setq erc-channel-user-limit nil)
5015 (setq erc-channel-key nil)
5016 (while arg-modes
5017 (let ((mode (nth 0 (car arg-modes)))
5018 (onoff (nth 1 (car arg-modes)))
5019 (arg (nth 2 (car arg-modes))))
5020 (cond ((string-match "^[Ll]" mode)
5021 (erc-update-channel-limit tgt onoff arg))
5022 ((string-match "^[Kk]" mode)
5023 (erc-update-channel-key tgt onoff arg))
5024 (t nil)))
5025 (setq arg-modes (cdr arg-modes)))
5026 (erc-update-mode-line-buffer buf)))))
5027 ;; we do not keep our nick's modes yet
5028 ;;(t (setq erc-user-modes add-modes))
5029 )
5030 ))
5032 (defun erc-sort-strings (list-of-strings)
5033 "Sort LIST-OF-STRINGS in lexicographic order.
5035 Side-effect free."
5036 (sort (copy-sequence list-of-strings) 'string<))
5038 (defun erc-parse-modes (mode-string)
5039 "Parse MODE-STRING into a list.
5041 Returns a list of three elements:
5043 (ADD-MODES REMOVE-MODES ARG-MODES).
5045 The add-modes and remove-modes are lists of single-character strings
5046 for modes without parameters to add and remove respectively. The
5047 arg-modes is a list of triples of the form:
5049 (MODE-CHAR ON/OFF ARGUMENT)."
5051 (let ((chars (mapcar 'char-to-string (match-string 1 mode-string)))
5052 ;; arguments in channel modes
5053 (args-str (match-string 2 mode-string))
5054 (args nil)
5055 (add-modes nil)
5056 (remove-modes nil)
5057 (arg-modes nil); list of triples: (mode-char 'on/'off argument)
5058 (add-p t))
5059 ;; make the argument list
5061 (setq args (cons (match-string 1 args-str) args))
5062 (setq args-str (match-string 2 args-str)))
5063 (setq args (nreverse args))
5064 ;; collect what modes changed, and match them with arguments
5065 (while chars
5066 (cond ((string= (car chars) "+") (setq add-p t))
5067 ((string= (car chars) "-") (setq add-p nil))
5068 ((string-match "^[qaovhbQAOVHB]" (car chars))
5069 (setq arg-modes (cons (list (car chars)
5070 (if add-p 'on 'off)
5071 (if args (car args) nil))
5072 arg-modes))
5073 (if args (setq args (cdr args))))
5074 ((string-match "^[LlKk]" (car chars))
5075 (setq arg-modes (cons (list (car chars)
5076 (if add-p 'on 'off)
5077 (if (and add-p args)
5078 (car args) nil))
5079 arg-modes))
5080 (if (and add-p args) (setq args (cdr args))))
5081 (add-p (setq add-modes (cons (car chars) add-modes)))
5082 (t (setq remove-modes (cons (car chars) remove-modes))))
5083 (setq chars (cdr chars)))
5084 (setq add-modes (nreverse add-modes))
5085 (setq remove-modes (nreverse remove-modes))
5086 (setq arg-modes (nreverse arg-modes))
5087 (list add-modes remove-modes arg-modes))
5088 nil))
5090 (defun erc-update-modes (tgt mode-string &optional nick host login)
5091 "Update the mode information for TGT, provided as MODE-STRING.
5092 Optional arguments: NICK, HOST and LOGIN - the attributes of the
5093 person who changed the modes."
5094 ;; FIXME: neither of nick, host, and login are used!
5095 (let* ((modes (erc-parse-modes mode-string))
5096 (add-modes (nth 0 modes))
5097 (remove-modes (nth 1 modes))
5098 ;; list of triples: (mode-char 'on/'off argument)
5099 (arg-modes (nth 2 modes)))
5100 ;; now parse the modes changes and do the updates
5101 (cond ((erc-channel-p tgt); channel modes
5102 (let ((buf (and erc-server-process
5103 (erc-get-buffer tgt erc-server-process))))
5104 (when buf
5105 ;; FIXME! This used to have an original buffer
5106 ;; variable, but it never switched back to the original
5107 ;; buffer. Is this wanted behavior?
5108 (set-buffer buf)
5109 (if (not (boundp 'erc-channel-modes))
5110 (setq erc-channel-modes nil))
5111 (while remove-modes
5112 (setq erc-channel-modes (delete (car remove-modes)
5113 erc-channel-modes)
5114 remove-modes (cdr remove-modes)))
5115 (while add-modes
5116 (setq erc-channel-modes (cons (car add-modes)
5117 erc-channel-modes)
5118 add-modes (cdr add-modes)))
5119 (setq erc-channel-modes (erc-sort-strings erc-channel-modes))
5120 (while arg-modes
5121 (let ((mode (nth 0 (car arg-modes)))
5122 (onoff (nth 1 (car arg-modes)))
5123 (arg (nth 2 (car arg-modes))))
5124 (cond ((string-match "^[Vv]" mode)
5125 (erc-update-channel-member tgt arg arg nil onoff))
5126 ((string-match "^[hH]" mode)
5127 (erc-update-channel-member tgt arg arg nil nil onoff))
5128 ((string-match "^[oO]" mode)
5129 (erc-update-channel-member tgt arg arg nil nil nil onoff))
5130 ((string-match "^[aA]" mode)
5131 (erc-update-channel-member tgt arg arg nil nil nil nil onoff))
5132 ((string-match "^[qQ]" mode)
5133 (erc-update-channel-member tgt arg arg nil nil nil nil nil onoff))
5134 ((string-match "^[Ll]" mode)
5135 (erc-update-channel-limit tgt onoff arg))
5136 ((string-match "^[Kk]" mode)
5137 (erc-update-channel-key tgt onoff arg))
5138 (t nil)); only ops are tracked now
5139 (setq arg-modes (cdr arg-modes))))
5140 (erc-update-mode-line buf))))
5141 ;; nick modes - ignored at this point
5142 (t nil))))
5144 (defun erc-update-channel-limit (channel onoff n)
5145 ;; FIXME: what does ONOFF actually do? -- Lawrence 2004-01-08
5146 "Update CHANNEL's user limit to N."
5147 (if (or (not (eq onoff 'on))
5148 (and (stringp n) (string-match "^[0-9]+$" n)))
5149 (erc-with-buffer
5150 (channel)
5151 (cond ((eq onoff 'on) (setq erc-channel-user-limit (string-to-number n)))
5152 (t (setq erc-channel-user-limit nil))))))
5154 (defun erc-update-channel-key (channel onoff key)
5155 "Update CHANNEL's key to KEY if ONOFF is 'on or to nil if it's 'off."
5156 (erc-with-buffer
5157 (channel)
5158 (cond ((eq onoff 'on) (setq erc-channel-key key))
5159 (t (setq erc-channel-key nil)))))
5161 (defun erc-handle-user-status-change (type nlh &optional l)
5162 "Handle changes in any user's status.
5164 So far, only nick change is handled.
5166 Generally, the TYPE argument is a symbol describing the change type, NLH is
5167 a list containing the original nickname, login name and hostname for the user,
5168 and L is a list containing additional TYPE-specific arguments.
5170 So far the following TYPE/L pairs are supported:
5172 Event TYPE L
5174 nickname change 'nick (NEW-NICK)"
5175 (erc-log (format "user-change: type: %S nlh: %S l: %S" type nlh l))
5176 (cond
5177 ;; nickname change
5178 ((equal type 'nick)
5179 t)
5180 (t
5181 nil)))
5183 (defun erc-highlight-notice (s)
5184 "Highlight notice message S and return it.
5185 See also variable `erc-notice-highlight-type'."
5186 (cond
5187 ((eq erc-notice-highlight-type 'prefix)
5188 (erc-put-text-property 0 (length erc-notice-prefix)
5189 'face 'erc-notice-face s)
5190 s)
5191 ((eq erc-notice-highlight-type 'all)
5192 (erc-put-text-property 0 (length s) 'face 'erc-notice-face s)
5193 s)
5194 (t s)))
5196 (defun erc-make-notice (message)
5197 "Notify the user of MESSAGE."
5198 (when erc-minibuffer-notice
5199 (message "%s" message))
5200 (erc-highlight-notice (concat erc-notice-prefix message)))
5202 (defun erc-highlight-error (s)
5203 "Highlight error message S and return it."
5204 (erc-put-text-property 0 (length s) 'face 'erc-error-face s)
5205 s)
5207 (defun erc-put-text-property (start end property value &optional object)
5208 "Set text-property for an object (usually a string).
5209 START and END define the characters covered.
5210 PROPERTY is the text-property set, usually the symbol `face'.
5211 VALUE is the value for the text-property, usually a face symbol such as
5212 the face `bold' or `erc-pal-face'.
5213 OBJECT is a string which will be modified and returned.
5214 OBJECT is modified without being copied first.
5216 You can redefine or `defadvice' this function in order to add
5217 EmacsSpeak support."
5218 (put-text-property start end property value object))
5220 (defun erc-list (thing)
5221 "Return THING if THING is a list, or a list with THING as its element."
5222 (if (listp thing)
5223 thing
5224 (list thing)))
5226 (defun erc-parse-user (string)
5227 "Parse STRING as a user specification (nick!login@host).
5229 Return a list of the three separate tokens."
5230 (cond
5232 (list (match-string 1 string)
5233 (match-string 2 string)
5234 (match-string 3 string)))
5235 ;; Some bogus bouncers send Nick!(null), try to live with that.
5237 (list (match-string 1 string)
5238 ""
5239 (match-string 2 string)))
5240 (t
5241 (list string "" ""))))
5243 (defun erc-extract-nick (string)
5244 "Return the nick corresponding to a user specification STRING.
5246 See also `erc-parse-user'."
5247 (car (erc-parse-user string)))
5249 (defun erc-put-text-properties (start end properties
5250 &optional object value-list)
5251 "Set text-properties for OBJECT.
5253 START and END describe positions in OBJECT.
5254 If VALUE-LIST is nil, set each property in PROPERTIES to t, else set
5255 each property to the corresponding value in VALUE-LIST."
5256 (unless value-list
5257 (setq value-list (mapcar (lambda (_x) t)
5258 properties)))
5259 (while (and properties value-list)
5260 (erc-put-text-property
5261 start end (pop properties) (pop value-list) object)))
5263 ;;; Input area handling:
5265 (defun erc-beg-of-input-line ()
5266 "Return the value of `point' at the beginning of the input line.
5268 Specifically, return the position of `erc-insert-marker'."
5269 (or (and (boundp 'erc-insert-marker)
5270 (markerp erc-insert-marker))
5271 (error "erc-insert-marker has no value, please report a bug"))
5272 (marker-position erc-insert-marker))
5274 (defun erc-end-of-input-line ()
5275 "Return the value of `point' at the end of the input line."
5276 (point-max))
5278 (defvar erc-last-input-time 0
5279 "Time of last call to `erc-send-current-line'.
5280 If that function has never been called, the value is 0.")
5282 (defcustom erc-accidental-paste-threshold-seconds nil
5283 "Minimum time, in seconds, before sending new lines via IRC.
5284 If the value is a number, `erc-send-current-line' signals an error
5285 if its previous invocation was fewer than this many seconds ago.
5286 This is useful so that if you accidentally enter large amounts of text
5287 into the ERC buffer, that text is not sent to the IRC server.
5289 If the value is nil, `erc-send-current-line' always considers any
5290 submitted line to be intentional."
5291 :group 'erc
5292 :version "24.4"
5293 :type '(choice number (other :tag "disabled" nil)))
5295 (defun erc-send-current-line ()
5296 "Parse current line and send it to IRC."
5297 (interactive)
5298 (let ((now (float-time)))
5299 (if (or (not erc-accidental-paste-threshold-seconds)
5300 (< erc-accidental-paste-threshold-seconds
5301 (- now erc-last-input-time)))
5302 (save-restriction
5303 (widen)
5304 (if (< (point) (erc-beg-of-input-line))
5305 (erc-error "Point is not in the input area")
5306 (let ((inhibit-read-only t)
5307 (str (erc-user-input))
5308 (old-buf (current-buffer)))
5309 (if (and (not (erc-server-buffer-live-p))
5310 (not (erc-command-no-process-p str)))
5311 (erc-error "ERC: No process running")
5312 (erc-set-active-buffer (current-buffer))
5313 ;; Kill the input and the prompt
5314 (delete-region (erc-beg-of-input-line)
5315 (erc-end-of-input-line))
5316 (unwind-protect
5317 (erc-send-input str)
5318 ;; Fix the buffer if the command didn't kill it
5319 (when (buffer-live-p old-buf)
5320 (with-current-buffer old-buf
5321 (save-restriction
5322 (widen)
5323 (goto-char (point-max))
5324 (when (processp erc-server-process)
5325 (set-marker (process-mark erc-server-process) (point)))
5326 (set-marker erc-insert-marker (point))
5327 (let ((buffer-modified (buffer-modified-p)))
5328 (erc-display-prompt)
5329 (set-buffer-modified-p buffer-modified))))))
5331 ;; Only when last hook has been run...
5332 (run-hook-with-args 'erc-send-completed-hook str))))
5333 (setq erc-last-input-time now))
5334 (switch-to-buffer "*ERC Accidental Paste Overflow*")
5335 (lwarn 'erc :warning
5336 "You seem to have accidentally pasted some text!"))))
5338 (defun erc-user-input ()
5339 "Return the input of the user in the current buffer."
5340 (buffer-substring-no-properties
5341 erc-input-marker
5342 (erc-end-of-input-line)))
5345 "Regular expression used for matching commands in ERC.")
5347 (defun erc-send-input (input)
5348 "Treat INPUT as typed in by the user. It is assumed that the input
5349 and the prompt is already deleted.
5350 This returns non-nil only if we actually send anything."
5351 ;; Handle different kinds of inputs
5352 (cond
5353 ;; Ignore empty input
5354 ((if erc-send-whitespace-lines
5355 (string= input "")
5357 (when erc-warn-about-blank-lines
5358 (message "Blank line - ignoring...")
5359 (beep))
5360 nil)
5361 (t
5362 (let ((str input)
5363 (erc-insert-this t))
5364 (setq erc-send-this t)
5365 (run-hook-with-args 'erc-send-pre-hook input)
5366 (when erc-send-this
5368 (not (string-match erc-command-regexp str)))
5369 (mapc
5370 (lambda (line)
5371 (mapc
5372 (lambda (line)
5373 ;; Insert what has to be inserted for this.
5374 (erc-display-msg line)
5376 (null erc-flood-protect) t))
5377 (or (and erc-flood-protect (erc-split-line line))
5378 (list line))))
5381 t)))))
5383 (defun erc-display-command (line)
5384 (when erc-insert-this
5385 (let ((insert-position (point)))
5386 (unless erc-hide-prompt
5387 (erc-display-prompt nil nil (erc-command-indicator)
5388 (and (erc-command-indicator)
5389 'erc-command-indicator-face)))
5390 (let ((beg (point)))
5391 (insert line)
5392 (erc-put-text-property beg (point)
5393 'face 'erc-command-indicator-face)
5395 (when (processp erc-server-process)
5396 (set-marker (process-mark erc-server-process) (point)))
5397 (set-marker erc-insert-marker (point))
5398 (save-excursion
5399 (save-restriction
5400 (narrow-to-region insert-position (point))
5401 (run-hooks 'erc-send-modify-hook)
5402 (run-hooks 'erc-send-post-hook))))))
5404 (defun erc-display-msg (line)
5405 "Display LINE as a message of the user to the current target at the
5406 current position."
5407 (when erc-insert-this
5408 (let ((insert-position (point)))
5409 (insert (erc-format-my-nick))
5410 (let ((beg (point)))
5411 (insert line)
5412 (erc-put-text-property beg (point)
5413 'face 'erc-input-face))
5415 (when (processp erc-server-process)
5416 (set-marker (process-mark erc-server-process) (point)))
5417 (set-marker erc-insert-marker (point))
5418 (save-excursion
5419 (save-restriction
5420 (narrow-to-region insert-position (point))
5421 (run-hooks 'erc-send-modify-hook)
5422 (run-hooks 'erc-send-post-hook))))))
5424 (defun erc-command-symbol (command)
5425 "Return the ERC command symbol for COMMAND if it exists and is bound."
5426 (let ((cmd (intern-soft (format "erc-cmd-%s" (upcase command)))))
5427 (when (fboundp cmd) cmd)))
5429 (defun erc-extract-command-from-line (line)
5430 "Extract command and args from the input LINE.
5431 If no command was given, return nil. If command matches, return a
5432 list of the form: (command args) where both elements are strings."
5433 (when (string-match erc-command-regexp line)
5434 (let* ((cmd (erc-command-symbol (match-string 1 line)))
5435 ;; note: return is nil, we apply this simply for side effects
5436 (_canon-defun (while (and cmd (symbolp (symbol-function cmd)))
5437 (setq cmd (symbol-function cmd))))
5438 (cmd-fun (or cmd #'erc-cmd-default))
5439 (arg (if cmd
5440 (if (get cmd-fun 'do-not-parse-args)
5441 (format "%s" (match-string 2 line))
5442 (delete "" (split-string (erc-trim-string
5443 (match-string 2 line)) " ")))
5444 line)))
5445 (list cmd-fun arg))))
5447 (defun erc-split-multiline-safe (string)
5448 "Split STRING, containing multiple lines and return them in a list.
5449 Do it only for STRING as the complete input, do not carry unfinished
5450 strings over to the next call."
5451 (let ((l ())
5452 (i0 0)
5453 (doit t))
5454 (while doit
5456 (s (substring string i0)))
5457 (cond (i (setq l (cons (substring string i0 i) l))
5458 (setq i0 (match-end 0)))
5459 ((> (length s) 0)
5460 (setq l (cons s l))(setq doit nil))
5461 (t (setq doit nil)))))
5462 (nreverse l)))
5464 ;; nick handling
5466 (defun erc-set-current-nick (nick)
5467 "Set the current nickname to NICK."
5468 (with-current-buffer (if (buffer-live-p (erc-server-buffer))
5469 (erc-server-buffer)
5470 (current-buffer))
5471 (setq erc-server-current-nick nick)))
5473 (defun erc-current-nick ()
5474 "Return the current nickname."
5475 (with-current-buffer (if (buffer-live-p (erc-server-buffer))
5476 (erc-server-buffer)
5477 (current-buffer))
5478 erc-server-current-nick))
5480 (defun erc-current-nick-p (nick)
5481 "Return non-nil if NICK is the current nickname."
5482 (erc-nick-equal-p nick (erc-current-nick)))
5484 (defun erc-nick-equal-p (nick1 nick2)
5485 "Return non-nil if NICK1 and NICK2 are the same.
5487 This matches strings according to the IRC protocol's case convention.
5489 See also `erc-downcase'."
5490 (string= (erc-downcase nick1)
5491 (erc-downcase nick2)))
5493 ;; default target handling
5495 (defun erc-default-target ()
5496 "Return the current default target (as a character string) or nil if none."
5497 (let ((tgt (car erc-default-recipients)))
5498 (cond
5499 ((not tgt) nil)
5500 ((listp tgt) (cdr tgt))
5501 (t tgt))))
5503 (defun erc-add-default-channel (channel)
5504 "Add CHANNEL to the default channel list."
5505 (let ((chl (downcase channel)))
5506 (setq erc-default-recipients
5507 (cons chl erc-default-recipients))))
5509 (defun erc-delete-default-channel (channel &optional buffer)
5510 "Delete CHANNEL from the default channel list."
5511 (with-current-buffer (if (and buffer
5512 (bufferp buffer))
5513 buffer
5514 (current-buffer))
5515 (setq erc-default-recipients (delete (downcase channel)
5516 erc-default-recipients))))
5518 (defun erc-add-query (nickname)
5519 "Add QUERY'd NICKNAME to the default channel list.
5521 The previous default target of QUERY type gets removed."
5522 (let ((d1 (car erc-default-recipients))
5523 (d2 (cdr erc-default-recipients))
5524 (qt (cons 'QUERY (downcase nickname))))
5525 (setq erc-default-recipients (cons qt (if (and (listp d1)
5526 (eq (car d1) 'QUERY))
5527 d2
5528 erc-default-recipients)))))
5530 (defun erc-delete-query ()
5531 "Delete the topmost target if it is a QUERY."
5533 (let ((d1 (car erc-default-recipients))
5534 (d2 (cdr erc-default-recipients)))
5535 (if (and (listp d1)
5536 (eq (car d1) 'QUERY))
5537 (setq erc-default-recipients d2)
5538 (error "Current target is not a QUERY"))))
5540 (defun erc-ignored-user-p (spec)
5541 "Return non-nil if SPEC matches something in `erc-ignore-list'.
5544 matches against all the regexp's in `erc-ignore-list'. If any
5545 match, returns that regexp."
5546 (catch 'found
5547 (dolist (ignored (erc-with-server-buffer erc-ignore-list))
5548 (if (string-match ignored spec)
5549 (throw 'found ignored)))))
5551 (defun erc-ignored-reply-p (msg tgt proc)
5552 ;; FIXME: this docstring needs fixing -- Lawrence 2004-01-08
5553 "Return non-nil if MSG matches something in `erc-ignore-reply-list'.
5555 Takes a message MSG to a channel and returns non-nil if the addressed
5556 user matches any regexp in `erc-ignore-reply-list'."
5557 (let ((target-nick (erc-message-target msg)))
5558 (if (not target-nick)
5559 nil
5560 (erc-with-buffer (tgt proc)
5561 (let ((user (erc-get-server-user target-nick)))
5562 (when user
5563 (erc-list-match erc-ignore-reply-list
5564 (erc-user-spec user))))))))
5566 (defun erc-message-target (msg)
5567 "Return the addressed target in MSG.
5569 The addressed target is the string before the first colon in MSG."
5571 (match-string 1 msg)
5572 nil))
5574 (defun erc-user-spec (user)
5575 "Create a nick!user@host spec from a user struct."
5576 (let ((nick (erc-server-user-nickname user))
5577 (host (erc-server-user-host user))
5578 (login (erc-server-user-login user)))
5579 (concat (or nick "")
5580 "!"
5581 (or login "")
5582 "@"
5583 (or host ""))))
5585 (defun erc-list-match (lst str)
5586 "Return non-nil if any regexp in LST matches STR."
5587 (memq nil (mapcar (lambda (regexp)
5588 (not (string-match regexp str)))
5589 lst)))
5591 ;; other "toggles"
5593 (defun erc-toggle-ctcp-autoresponse (&optional arg)
5594 "Toggle automatic CTCP replies (like VERSION and PING).
5596 If ARG is positive, turns CTCP replies on.
5598 If ARG is non-nil and not positive, turns CTCP replies off."
5599 (interactive "P")
5600 (cond ((and (numberp arg) (> arg 0))
5601 (setq erc-disable-ctcp-replies t))
5602 (arg (setq erc-disable-ctcp-replies nil))
5603 (t (setq erc-disable-ctcp-replies (not erc-disable-ctcp-replies))))
5604 (message "ERC CTCP replies are %s" (if erc-disable-ctcp-replies "OFF" "ON")))
5606 (defun erc-toggle-flood-control (&optional arg)
5607 "Toggle use of flood control on sent messages.
5609 If ARG is positive, use flood control.
5610 If ARG is non-nil and not positive, do not use flood control.
5612 See `erc-server-flood-margin' for an explanation of the available
5613 flood control parameters."
5614 (interactive "P")
5615 (cond ((and (numberp arg) (> arg 0))
5616 (setq erc-flood-protect t))
5617 (arg (setq erc-flood-protect nil))
5618 (t (setq erc-flood-protect (not erc-flood-protect))))
5619 (message "ERC flood control is %s"
5620 (cond (erc-flood-protect "ON")
5621 (t "OFF"))))
5623 ;; Some useful channel and nick commands for fast key bindings
5625 (defun erc-invite-only-mode (&optional arg)
5626 "Turn on the invite only mode (+i) for the current channel.
5628 If ARG is non-nil, turn this mode off (-i).
5630 This command is sent even if excess flood is detected."
5631 (interactive "P")
5632 (erc-set-active-buffer (current-buffer))
5633 (let ((tgt (erc-default-target)))
5634 (if (or (not tgt) (not (erc-channel-p tgt)))
5635 (erc-display-message nil 'error (current-buffer) 'no-target)
5636 (erc-load-irc-script-lines
5637 (list (concat "/mode " tgt (if arg " -i" " +i")))
5638 t))))
5640 (defun erc-get-channel-mode-from-keypress (key)
5641 "Read a key sequence and call the corresponding channel mode function.
5642 After doing C-c C-o, type in a channel mode letter.
5644 C-g means quit.
5645 RET lets you type more than one mode at a time.
5648 Anything else will be sent to `erc-toggle-channel-mode'."
5649 (interactive "kChannel mode (RET to set more than one): ")
5650 (when (featurep 'xemacs)
5651 (setq key (char-to-string (event-to-character (aref key 0)))))
5652 (cond ((equal key "\C-g")
5653 (keyboard-quit))
5654 ((equal key "\C-m")
5655 (erc-insert-mode-command))
5656 ((equal key "l")
5657 (call-interactively 'erc-set-channel-limit))
5658 ((equal key "k")
5659 (call-interactively 'erc-set-channel-key))
5660 (t (erc-toggle-channel-mode key))))
5662 (defun erc-toggle-channel-mode (mode &optional channel)
5663 "Toggle channel MODE.
5665 If CHANNEL is non-nil, toggle MODE for that channel, otherwise use
5666 `erc-default-target'."
5667 (interactive "P")
5668 (erc-set-active-buffer (current-buffer))
5669 (let ((tgt (or channel (erc-default-target))))
5670 (if (or (null tgt) (null (erc-channel-p tgt)))
5671 (erc-display-message nil 'error 'active 'no-target)
5672 (let* ((active (member mode erc-channel-modes))
5673 (newstate (if active "OFF" "ON")))
5674 (erc-log (format "%s: Toggle mode %s %s" tgt mode newstate))
5675 (message "Toggle channel mode %s %s" mode newstate)
5676 (erc-server-send (format "MODE %s %s%s"
5677 tgt (if active "-" "+") mode))))))
5679 (defun erc-insert-mode-command ()
5681 (interactive)
5682 (let ((tgt (erc-default-target)))
5683 (if tgt (insert (concat "/mode " tgt " "))
5684 (erc-display-message nil 'error (current-buffer) 'no-target))))
5686 (defun erc-channel-names ()
5688 (interactive)
5689 (erc-set-active-buffer (current-buffer))
5690 (let ((tgt (erc-default-target)))
5691 (if tgt (erc-load-irc-script-lines (list (concat "/names " tgt)))
5692 (erc-display-message nil 'error (current-buffer) 'no-target))))
5694 (defun erc-remove-text-properties-region (start end &optional object)
5695 "Clears the region (START,END) in OBJECT from all colors, etc."
5696 (interactive "r")
5697 (save-excursion
5698 (let ((inhibit-read-only t))
5699 (set-text-properties start end nil object))))
5700 (put 'erc-remove-text-properties-region 'disabled t)
5702 ;; script execution and startup
5704 (defun erc-find-file (file &optional path)
5705 "Search for a FILE in the filesystem.
5706 First the `default-directory' is searched for FILE, then any directories
5707 specified in the list PATH.
5709 If FILE is found, return the path to it."
5710 (let ((filepath file))
5711 (if (file-readable-p filepath) filepath
5712 (while (and path
5713 (progn (setq filepath (expand-file-name file (car path)))
5714 (not (file-readable-p filepath))))
5715 (setq path (cdr path)))
5716 (if path filepath nil))))
5718 (defun erc-select-startup-file ()
5719 "Select an ERC startup file.
5720 See also `erc-startup-file-list'."
5721 (catch 'found
5722 (dolist (f erc-startup-file-list)
5723 (setq f (convert-standard-filename f))
5724 (when (file-readable-p f)
5725 (throw 'found f)))))
5727 (defun erc-find-script-file (file)
5728 "Search for FILE in `default-directory', and any in `erc-script-path'."
5729 (erc-find-file file erc-script-path))
5731 (defun erc-load-script (file)
5732 "Load a script from FILE.
5734 FILE must be the full name, it is not searched in the
5735 `erc-script-path'. If the filename ends with `.el', then load it
5736 as an Emacs Lisp program. Otherwise, treat it as a regular IRC
5737 script."
5738 (erc-log (concat "erc-load-script: " file))
5739 (cond
5741 (load file))
5742 (t
5743 (erc-load-irc-script file))))
5745 (defun erc-process-script-line (line &optional args)
5746 "Process an IRC script LINE.
5748 Does script-specific substitutions (script arguments, current nick,
5749 server, etc.) in LINE and returns it.
5751 Substitutions are: %C and %c = current target (channel or nick),
5752 %S %s = current server, %N %n = my current nick, and %x is x verbatim,
5753 where x is any other character;
5754 $* = the entire argument string, $1 = the first argument, $2 = the second,
5755 and so on."
5756 (if (not args) (setq args ""))
5760 (tgt (erc-default-target))
5761 (server (and (boundp 'erc-session-server) erc-session-server))
5762 (nick (erc-current-nick))
5763 (res "")
5764 (tmp nil)
5765 (arg-list nil)
5766 (arg-num 0))
5767 (if (not tgt) (setq tgt ""))
5768 (if (not server) (setq server ""))
5769 (if (not nick) (setq nick ""))
5770 ;; First, compute the argument list
5771 (setq tmp args)
5773 (setq arg-list (cons (match-string 1 tmp) arg-list))
5774 (setq tmp (match-string 2 tmp)))
5775 (setq arg-list (nreverse arg-list))
5776 (setq arg-num (length arg-list))
5777 ;; now do the substitution
5778 (setq tmp (string-match esc-regexp line))
5779 (while tmp
5780 ;;(message "beginning of while: tmp=%S" tmp)
5781 (let* ((hd (substring line 0 tmp))
5782 (esc "")
5783 (subst "")
5784 (tail (substring line tmp)))
5785 (cond ((string-match (concat "^" arg-esc-regexp) tail)
5786 (setq esc (match-string 1 tail))
5787 (setq tail (substring tail (match-end 1))))
5788 ((string-match (concat "^" percent-regexp) tail)
5789 (setq esc (match-string 1 tail))
5790 (setq tail (substring tail (match-end 1)))))
5791 ;;(message "hd=%S, esc=%S, tail=%S, arg-num=%S" hd esc tail arg-num)
5792 (setq res (concat res hd))
5793 (setq subst
5794 (cond ((string= esc "") "")
5797 (let ((n (string-to-number (match-string 1 esc))))
5798 (message "n = %S, integerp(n)=%S" n (integerp n))
5799 (if (<= n arg-num) (nth (1- n) arg-list) "")))
5800 ((string-match "^%[Cc]$" esc) tgt)
5801 ((string-match "^%[Ss]$" esc) server)
5802 ((string-match "^%[Nn]$" esc) nick)
5805 (message "BUG IN ERC: esc=%S" esc)
5806 "")))
5807 (setq line tail)
5808 (setq tmp (string-match esc-regexp line))
5809 (setq res (concat res subst))
5810 ;;(message "end of while: line=%S, res=%S, tmp=%S" line res tmp)
5811 ))
5812 (setq res (concat res line))
5813 res))
5815 (defun erc-load-irc-script (file &optional force)
5816 "Load an IRC script from FILE."
5817 (erc-log (concat "erc-load-script: " file))
5818 (let ((str (with-temp-buffer
5819 (insert-file-contents file)
5820 (buffer-string))))
5821 (erc-load-irc-script-lines (erc-split-multiline-safe str) force)))
5823 (defun erc-load-irc-script-lines (lines &optional force noexpand)
5824 "Load IRC script LINES (a list of strings).
5826 If optional NOEXPAND is non-nil, do not expand script-specific
5827 sequences, process the lines verbatim. Use this for multiline
5828 user input."
5829 (let* ((cb (current-buffer))
5830 (s "")
5831 (sp (or (erc-command-indicator) (erc-prompt)))
5832 (args (and (boundp 'erc-script-args) erc-script-args)))
5833 (if (and args (string-match "^ " args))
5834 (setq args (substring args 1)))
5835 ;; prepare the prompt string for echo
5836 (erc-put-text-property 0 (length sp)
5837 'face 'erc-command-indicator-face sp)
5838 (while lines
5839 (setq s (car lines))
5840 (erc-log (concat "erc-load-script: CMD: " s))
5842 (let ((line (if noexpand s (erc-process-script-line s args))))
5843 (if (and (erc-process-input-line line force)
5844 erc-script-echo)
5845 (progn
5846 (erc-put-text-property 0 (length line)
5847 'face 'erc-input-face line)
5848 (erc-display-line (concat sp line) cb)))))
5849 (setq lines (cdr lines)))))
5851 ;; authentication
5853 (defun erc-login ()
5854 "Perform user authentication at the IRC server."
5855 (erc-log (format "login: nick: %s, user: %s %s %s :%s"
5856 (erc-current-nick)
5857 (user-login-name)
5858 (or erc-system-name (system-name))
5859 erc-session-server
5860 erc-session-user-full-name))
5861 (if erc-session-password
5862 (erc-server-send (format "PASS %s" erc-session-password))
5863 (message "Logging in without password"))
5864 (erc-server-send (format "NICK %s" (erc-current-nick)))
5865 (erc-server-send
5866 (format "USER %s %s %s :%s"
5867 ;; hacked - S.B.
5868 (if erc-anonymous-login erc-email-userid (user-login-name))
5869 "0" "*"
5870 erc-session-user-full-name))
5871 (erc-update-mode-line))
5873 ;; connection properties' heuristics
5875 (defun erc-determine-parameters (&optional server port nick name)
5876 "Determine the connection and authentication parameters.
5877 Sets the buffer local variables:
5879 - `erc-session-connector'
5880 - `erc-session-server'
5881 - `erc-session-port'
5882 - `erc-session-full-name'
5883 - `erc-server-current-nick'"
5884 (setq erc-session-connector erc-server-connect-function
5885 erc-session-server (erc-compute-server server)
5886 erc-session-port (or port erc-default-port)
5887 erc-session-user-full-name (erc-compute-full-name name))
5888 (erc-set-current-nick (erc-compute-nick nick)))
5890 (defun erc-compute-server (&optional server)
5891 "Return an IRC server name.
5893 This tries a number of increasingly more default methods until a
5894 non-nil value is found.
5896 - SERVER (the argument passed to this function)
5897 - The `erc-server' option
5898 - The value of the IRCSERVER environment variable
5899 - The `erc-default-server' variable"
5900 (or server
5901 erc-server
5902 (getenv "IRCSERVER")
5903 erc-default-server))
5905 (defun erc-compute-nick (&optional nick)
5906 "Return user's IRC nick.
5908 This tries a number of increasingly more default methods until a
5909 non-nil value is found.
5911 - NICK (the argument passed to this function)
5912 - The `erc-nick' option
5913 - The value of the IRCNICK environment variable
5914 - The result from the `user-login-name' function"
5915 (or nick
5916 (if (consp erc-nick) (car erc-nick) erc-nick)
5917 (getenv "IRCNICK")
5918 (user-login-name)))
5921 (defun erc-compute-full-name (&optional full-name)
5922 "Return user's full name.
5924 This tries a number of increasingly more default methods until a
5925 non-nil value is found.
5927 - FULL-NAME (the argument passed to this function)
5928 - The `erc-user-full-name' option
5929 - The value of the IRCNAME environment variable
5930 - The result from the `user-full-name' function"
5931 (or full-name
5932 erc-user-full-name
5933 (getenv "IRCNAME")
5934 (if erc-anonymous-login "unknown" nil)
5935 (user-full-name)))
5937 (defun erc-compute-port (&optional port)
5938 "Return a port for an IRC server.
5940 This tries a number of increasingly more default methods until a
5941 non-nil value is found.
5943 - PORT (the argument passed to this function)
5944 - The `erc-port' option
5945 - The `erc-default-port' variable"
5946 (or port erc-port erc-default-port))
5948 ;; time routines
5950 (defun erc-string-to-emacs-time (string)
5951 "Convert the long number represented by STRING into an Emacs format.
5952 Returns a list of the form (HIGH LOW), compatible with Emacs time format."
5953 (let* ((n (string-to-number (concat string ".0"))))
5954 (list (truncate (/ n 65536))
5955 (truncate (mod n 65536)))))
5957 (defun erc-emacs-time-to-erc-time (time)
5958 "Convert Emacs TIME to a number of seconds since the epoch."
5959 (when time
5960 (+ (* (nth 0 time) 65536.0) (nth 1 time))))
5961 ; (round (+ (* (nth 0 tm) 65536.0) (nth 1 tm))))
5963 (defun erc-current-time ()
5964 "Return the `current-time' as a number of seconds since the epoch.
5966 See also `erc-emacs-time-to-erc-time'."
5967 (erc-emacs-time-to-erc-time (current-time)))
5969 (defun erc-time-diff (t1 t2)
5970 "Return the time difference in seconds between T1 and T2."
5971 (abs (- t2 t1)))
5973 (defun erc-time-gt (t1 t2)
5974 "Check whether T1 > T2."
5975 (> t1 t2))
5977 (defun erc-sec-to-time (ns)
5978 "Convert NS to a time string HH:MM.SS."
5979 (setq ns (truncate ns))
5980 (format "%02d:%02d.%02d"
5981 (/ ns 3600)
5982 (/ (% ns 3600) 60)
5983 (% ns 60)))
5985 (defun erc-seconds-to-string (seconds)
5986 "Convert a number of SECONDS into an English phrase."
5987 (let (days hours minutes format-args output)
5988 (setq days (/ seconds 86400)
5989 seconds (% seconds 86400)
5990 hours (/ seconds 3600)
5991 seconds (% seconds 3600)
5992 minutes (/ seconds 60)
5993 seconds (% seconds 60)
5994 format-args (if (> days 0)
5995 `("%d days, %d hours, %d minutes, %d seconds"
5996 ,days ,hours ,minutes ,seconds)
5997 (if (> hours 0)
5998 `("%d hours, %d minutes, %d seconds"
5999 ,hours ,minutes ,seconds)
6000 (if (> minutes 0)
6001 `("%d minutes, %d seconds" ,minutes ,seconds)
6002 `("%d seconds" ,seconds))))
6003 output (apply 'format format-args))
6004 ;; Change all "1 units" to "1 unit".
6006 (setq output (erc-replace-match-subexpression-in-string
6007 "" output (match-string 2 output) 2 (match-beginning 2))))
6008 output))
6011 ;; info
6013 (defconst erc-clientinfo-alist
6014 '(("ACTION" . "is used to inform about one's current activity")
6015 ("CLIENTINFO" . "gives help on CTCP commands supported by client")
6016 ("ECHO" . "echoes its arguments back")
6017 ("FINGER" . "shows user's name, location, and idle time")
6018 ("PING" . "measures delay between peers")
6019 ("TIME" . "shows client-side time")
6020 ("USERINFO" . "shows information provided by a user")
6021 ("VERSION" . "shows client type and version"))
6022 "Alist of CTCP CLIENTINFO for ERC commands.")
6024 (defun erc-client-info (s)
6025 "Return CTCP CLIENTINFO on command S.
6026 If S is nil or an empty string then return general CLIENTINFO."
6027 (if (or (not s) (string= s ""))
6028 (concat
6029 (apply #'concat
6030 (mapcar (lambda (e)
6031 (concat (car e) " "))
6032 erc-clientinfo-alist))
6033 ": use CLIENTINFO <COMMAND> to get more specific information")
6034 (let ((h (assoc (upcase s) erc-clientinfo-alist)))
6035 (if h
6036 (concat s " " (cdr h))
6037 (concat s ": unknown command")))))
6039 ;; Hook functions
6041 (defun erc-directory-writable-p (dir)
6042 "Determine whether DIR is a writable directory.
6043 If it doesn't exist, create it."
6044 (unless (file-attributes dir) (make-directory dir))
6045 (or (file-accessible-directory-p dir) (error "Cannot access %s" dir)))
6047 (defun erc-kill-query-buffers (process)
6048 "Kill all buffers of PROCESS."
6049 ;; here, we only want to match the channel buffers, to avoid
6050 ;; "selecting killed buffers" b0rkage.
6051 (erc-with-all-buffers-of-server process
6052 (lambda ()
6053 (not (erc-server-buffer-p)))
6054 (kill-buffer (current-buffer))))
6056 (defun erc-nick-at-point ()
6057 "Give information about the nickname at `point'.
6059 If called interactively, give a human readable message in the
6060 minibuffer. If called programmatically, return the corresponding
6061 entry of `channel-members'."
6062 (interactive)
6063 (require 'thingatpt)
6064 (let* ((word (word-at-point))
6065 (channel-data (erc-get-channel-user word))
6066 (cuser (cdr channel-data))
6067 (user (if channel-data
6068 (car channel-data)
6069 (erc-get-server-user word)))
6070 host login full-name nick voice halfop op admin owner)
6071 (when user
6072 (setq nick (erc-server-user-nickname user)
6073 host (erc-server-user-host user)
6074 login (erc-server-user-login user)
6075 full-name (erc-server-user-full-name user))
6076 (if cuser
6077 (setq voice (erc-channel-user-voice cuser)
6078 halfop (erc-channel-user-halfop cuser)
6079 op (erc-channel-user-op cuser)
6080 admin (erc-channel-user-admin cuser)
6081 owner (erc-channel-user-owner cuser))))
6082 (if (called-interactively-p 'interactive)
6083 (message "%s is %s@%s%s%s"
6084 nick login host
6085 (if full-name (format " (%s)" full-name) "")
6086 (if (or voice halfop op admin owner)
6087 (format " and is +%s%s on %s"
6088 (if voice "v" "")
6089 (if halfop "h" "")
6090 (if op "o" "")
6091 (if admin "a" "")
6092 (if owner "q" "")
6093 (erc-default-target))
6094 ""))
6095 user)))
6097 (defun erc-away-time ()
6098 "Return non-nil if the current ERC process is set away.
6100 In particular, the time that we were set away is returned.
6101 See `current-time' for details on the time format."
6102 (erc-with-server-buffer erc-away))
6104 ;; Mode line handling
6106 (defcustom erc-mode-line-format "%S %a"
6107 "A string to be formatted and shown in the mode-line in `erc-mode'.
6109 The string is formatted using `format-spec' and the result is set as the value
6110 of `mode-line-buffer-identification'.
6112 The following characters are replaced:
6114 %l: The estimated lag time to the server
6115 %m: The modes of the channel
6116 %n: The current nick name
6117 %N: The name of the network
6118 %o: The topic of the channel
6119 %p: The session port
6120 %t: The name of the target (channel, nickname, or servername:port)
6121 %s: In the server-buffer, this gets filled with the value of
6122 `erc-server-announced-name', in a channel, the value of
6123 (erc-default-target) also get concatenated.
6124 %S: In the server-buffer, this gets filled with the value of
6125 `erc-network', in a channel, the value of (erc-default-target)
6126 also get concatenated."
6127 :group 'erc-mode-line-and-header
6128 :type 'string)
6130 (defcustom erc-header-line-format "%n on %t (%m,%l) %o"
6131 "A string to be formatted and shown in the header-line in `erc-mode'.
6132 Only used starting in Emacs 21.
6134 Set this to nil if you do not want the header line to be
6135 displayed.
6137 See `erc-mode-line-format' for which characters are can be used."
6138 :group 'erc-mode-line-and-header
6139 :set (lambda (sym val)
6140 (set sym val)
6141 (when (fboundp 'erc-update-mode-line)
6142 (erc-update-mode-line nil)))
6143 :type '(choice (const :tag "Disabled" nil)
6144 string))
6146 (defcustom erc-header-line-uses-tabbar-p nil
6147 "Use tabbar mode instead of the header line to display the header."
6148 :group 'erc-mode-line-and-header
6149 :type 'boolean)
6151 (defcustom erc-header-line-uses-help-echo-p t
6152 "Show the contents of the header line in the echo area or as a tooltip
6153 when you move point into the header line."
6154 :group 'erc-mode-line-and-header
6155 :type 'boolean)
6157 (defcustom erc-header-line-face-method nil
6158 "Determine what method to use when colorizing the header line text.
6160 If nil, don't colorize the header text.
6161 If given a function, call it and use the resulting face name.
6162 Otherwise, use the `erc-header-line' face."
6163 :group 'erc-mode-line-and-header
6164 :type '(choice (const :tag "Don't colorize" nil)
6165 (const :tag "Use the erc-header-line face" t)
6166 (function :tag "Call a function")))
6168 (defcustom erc-show-channel-key-p t
6169 "Show the channel key in the header line."
6170 :group 'erc-paranoia
6171 :type 'boolean)
6173 (defcustom erc-mode-line-away-status-format
6174 "(AWAY since %a %b %d %H:%M) "
6175 "When you're away on a server, this is shown in the mode line.
6176 This should be a string with substitution variables recognized by
6177 `format-time-string'."
6178 :group 'erc-mode-line-and-header
6179 :type 'string)
6181 (defun erc-shorten-server-name (server-name)
6182 "Shorten SERVER-NAME according to `erc-common-server-suffixes'."
6183 (if (stringp server-name)
6184 (with-temp-buffer
6185 (insert server-name)
6186 (let ((alist erc-common-server-suffixes))
6187 (while alist
6188 (goto-char (point-min))
6189 (if (re-search-forward (caar alist) nil t)
6190 (replace-match (cdar alist)))
6191 (setq alist (cdr alist))))
6192 (buffer-string))))
6194 (defun erc-format-target ()
6195 "Return the name of the target (channel or nickname or servername:port)."
6196 (let ((target (erc-default-target)))
6197 (or target
6198 (concat (erc-shorten-server-name
6199 (or erc-server-announced-name
6200 erc-session-server))
6201 ":" (erc-port-to-string erc-session-port)))))
6203 (defun erc-format-target-and/or-server ()
6204 "Return the server name or the current target and server name combined."
6205 (let ((server-name (erc-shorten-server-name
6206 (or erc-server-announced-name
6207 erc-session-server))))
6208 (cond ((erc-default-target)
6209 (concat (erc-string-no-properties (erc-default-target))
6210 "@" server-name))
6211 (server-name server-name)
6212 (t (buffer-name (current-buffer))))))
6214 (defun erc-format-network ()
6215 "Return the name of the network we are currently on."
6216 (let ((network (and (fboundp 'erc-network-name) (erc-network-name))))
6217 (if (and network (symbolp network))
6218 (symbol-name network)
6219 "")))
6221 (defun erc-format-target-and/or-network ()
6222 "Return the network or the current target and network combined.
6223 If the name of the network is not available, then use the
6224 shortened server name instead."
6225 (let ((network-name (or (and (fboundp 'erc-network-name) (erc-network-name))
6226 (erc-shorten-server-name
6227 (or erc-server-announced-name
6228 erc-session-server)))))
6229 (when (and network-name (symbolp network-name))
6230 (setq network-name (symbol-name network-name)))
6231 (cond ((erc-default-target)
6232 (concat (erc-string-no-properties (erc-default-target))
6233 "@" network-name))
6234 ((and network-name
6235 (not (get-buffer network-name)))
6236 (rename-buffer network-name)
6237 network-name)
6238 (t (buffer-name (current-buffer))))))
6240 (defun erc-format-away-status ()
6241 "Return a formatted `erc-mode-line-away-status-format'
6242 if `erc-away' is non-nil."
6243 (let ((a (erc-away-time)))
6244 (if a
6245 (format-time-string erc-mode-line-away-status-format a)
6246 "")))
6248 (defun erc-format-channel-modes ()
6249 "Return the current channel's modes."
6250 (concat (apply 'concat
6251 "+" erc-channel-modes)
6252 (cond ((and erc-channel-user-limit erc-channel-key)
6253 (if erc-show-channel-key-p
6254 (format "lk %.0f %s" erc-channel-user-limit
6255 erc-channel-key)
6256 (format "kl %.0f" erc-channel-user-limit)))
6257 (erc-channel-user-limit
6258 ;; Emacs has no bignums
6259 (format "l %.0f" erc-channel-user-limit))
6260 (erc-channel-key
6261 (if erc-show-channel-key-p
6262 (format "k %s" erc-channel-key)
6263 "k"))
6264 (t nil))))
6266 (defun erc-format-lag-time ()
6267 "Return the estimated lag time to server, `erc-server-lag'."
6268 (let ((lag (erc-with-server-buffer erc-server-lag)))
6269 (cond (lag (format "lag:%.0f" lag))
6270 (t ""))))
6272 ;; erc-goodies is required at end of this file.
6273 (declare-function erc-controls-strip "erc-goodies" (str))
6275 (defvar tabbar--local-hlf)
6277 (defun erc-update-mode-line-buffer (buffer)
6278 "Update the mode line in a single ERC buffer BUFFER."
6279 (with-current-buffer buffer
6280 (let ((spec (format-spec-make
6281 ?a (erc-format-away-status)
6282 ?l (erc-format-lag-time)
6283 ?m (erc-format-channel-modes)
6284 ?n (or (erc-current-nick) "")
6285 ?N (erc-format-network)
6286 ?o (or (erc-controls-strip erc-channel-topic) "")
6287 ?p (erc-port-to-string erc-session-port)
6288 ?s (erc-format-target-and/or-server)
6289 ?S (erc-format-target-and/or-network)
6290 ?t (erc-format-target)))
6291 (process-status (cond ((and (erc-server-process-alive)
6292 (not erc-server-connected))
6293 ":connecting")
6294 ((erc-server-process-alive)
6295 "")
6296 (t
6297 ": CLOSED")))
6298 (face (cond ((eq erc-header-line-face-method nil)
6299 nil)
6300 ((functionp erc-header-line-face-method)
6301 (funcall erc-header-line-face-method))
6302 (t
6303 'erc-header-line))))
6304 (cond ((featurep 'xemacs)
6305 (setq modeline-buffer-identification
6306 (list (format-spec erc-mode-line-format spec)))
6307 (setq modeline-process (list process-status)))
6308 (t
6309 (setq mode-line-buffer-identification
6310 (list (format-spec erc-mode-line-format spec)))
6311 (setq mode-line-process (list process-status))))
6312 (when (boundp 'header-line-format)
6313 (let ((header (if erc-header-line-format
6314 (format-spec erc-header-line-format spec)
6315 nil)))
6316 (cond (erc-header-line-uses-tabbar-p
6317 (set (make-local-variable 'tabbar--local-hlf)
6318 header-line-format)
6319 (kill-local-variable 'header-line-format))
6320 ((null header)
6321 (setq header-line-format nil))
6322 (erc-header-line-uses-help-echo-p
6323 (let ((help-echo (with-temp-buffer
6324 (insert header)
6325 (fill-region (point-min) (point-max))
6326 (buffer-string))))
6327 (setq header-line-format
6328 (erc-replace-regexp-in-string
6329 "%"
6330 "%%"
6331 (if face
6332 (erc-propertize header 'help-echo help-echo
6333 'face face)
6334 (erc-propertize header 'help-echo help-echo))))))
6335 (t (setq header-line-format
6336 (if face
6337 (erc-propertize header 'face face)
6338 header)))))))
6339 (if (featurep 'xemacs)
6340 (redraw-modeline)
6341 (force-mode-line-update))))
6343 (defun erc-update-mode-line (&optional buffer)
6344 "Update the mode line in BUFFER.
6346 If BUFFER is nil, update the mode line in all ERC buffers."
6347 (if (and buffer (bufferp buffer))
6348 (erc-update-mode-line-buffer buffer)
6349 (dolist (buf (erc-buffer-list))
6350 (when (buffer-live-p buf)
6351 (erc-update-mode-line-buffer buf)))))
6353 ;; Miscellaneous
6355 (defun erc-port-to-string (p)
6356 "Convert port P to a string.
6357 P may be an integer or a service name."
6358 (if (integerp p)
6359 (int-to-string p)
6360 p))
6362 (defun erc-string-to-port (s)
6363 "Convert string S to either an integer port number or a service name."
6364 (if (numberp s)
6365 s
6366 (let ((n (string-to-number s)))
6367 (if (= n 0)
6368 s
6369 n))))
6371 (defun erc-version (&optional here)
6372 "Show the version number of ERC in the minibuffer.
6373 If optional argument HERE is non-nil, insert version number at point."
6374 (interactive "P")
6375 (let ((version-string
6376 (format "ERC %s (GNU Emacs %s)" erc-version-string emacs-version)))
6377 (if here
6378 (insert version-string)
6379 (if (called-interactively-p 'interactive)
6380 (message "%s" version-string)
6381 version-string))))
6383 (defun erc-modes (&optional here)
6384 "Show the active ERC modes in the minibuffer.
6385 If optional argument HERE is non-nil, insert version number at point."
6386 (interactive "P")
6387 (let ((string
6388 (mapconcat 'identity
6389 (let (modes (case-fold-search nil))
6390 (dolist (var (apropos-internal "^erc-.*mode$"))
6391 (when (and (boundp var)
6392 (symbol-value var))
6393 (setq modes (cons (symbol-name var)
6394 modes))))
6395 modes)
6396 ", ")))
6397 (if here
6398 (insert string)
6399 (if (called-interactively-p 'interactive)
6400 (message "%s" string)
6401 string))))
6403 (defun erc-trim-string (s)
6404 "Trim leading and trailing spaces off S."
6405 (cond
6406 ((not (stringp s)) nil)
6408 "")
6410 (match-string 1 s))
6411 (t
6412 s)))
6414 (defun erc-arrange-session-in-multiple-windows ()
6415 "Open a window for every non-server buffer related to `erc-session-server'.
6417 All windows are opened in the current frame."
6418 (interactive)
6419 (unless erc-server-process
6420 (error "No erc-server-process found in current buffer"))
6421 (let ((bufs (erc-buffer-list nil erc-server-process)))
6422 (when bufs
6423 (delete-other-windows)
6424 (switch-to-buffer (car bufs))
6425 (setq bufs (cdr bufs))
6426 (while bufs
6427 (split-window)
6428 (other-window 1)
6429 (switch-to-buffer (car bufs))
6430 (setq bufs (cdr bufs))
6431 (balance-windows)))))
6433 (defun erc-popup-input-buffer ()
6434 "Provide an input buffer."
6435 (interactive)
6436 (let ((buffer-name (generate-new-buffer-name "*ERC input*"))
6437 (mode (intern
6438 (completing-read
6439 "Mode: "
6440 (mapcar (lambda (e)
6441 (list (symbol-name e)))
6442 (apropos-internal "-mode$" 'commandp))
6443 nil t))))
6444 (pop-to-buffer (make-indirect-buffer (current-buffer) buffer-name))
6445 (funcall mode)
6446 (narrow-to-region (point) (point))
6447 (shrink-window-if-larger-than-buffer)))
6449 ;;; Message catalog
6451 (defun erc-make-message-variable-name (catalog entry)
6452 "Create a variable name corresponding to CATALOG's ENTRY."
6453 (intern (concat "erc-message-"
6454 (symbol-name catalog) "-" (symbol-name entry))))
6456 (defun erc-define-catalog-entry (catalog entry format-spec)
6457 "Set CATALOG's ENTRY to FORMAT-SPEC."
6458 (set (erc-make-message-variable-name catalog entry)
6459 format-spec))
6461 (defun erc-define-catalog (catalog entries)
6462 "Define a CATALOG according to ENTRIES."
6463 (dolist (entry entries)
6464 (erc-define-catalog-entry catalog (car entry) (cdr entry))))
6466 (erc-define-catalog
6467 'english
6468 '((bad-ping-response . "Unexpected PING response from %n (time %t)")
6471 (cannot-find-file . "Cannot find file %f")
6472 (cannot-read-file . "Cannot read file %f")
6473 (connect . "Connecting to %S:%p... ")
6474 (country . "%c")
6475 (country-unknown . "%d: No such domain")
6476 (ctcp-empty . "Illegal empty CTCP query received from %n. Ignoring.")
6477 (ctcp-request . "==> CTCP request from %n (%u@%h): %r")
6478 (ctcp-request-to . "==> CTCP request from %n (%u@%h) to %t: %r")
6479 (ctcp-too-many . "Too many CTCP queries in single message. Ignoring")
6480 (flood-ctcp-off . "FLOOD PROTECTION: Automatic CTCP responses turned off.")
6481 (flood-strict-mode
6482 . "FLOOD PROTECTION: Switched to Strict Flood Control mode.")
6484 (disconnected-noreconnect
6489 (nick-in-use . "%n is in use. Choose new nickname: ")
6490 (nick-too-long
6491 . "WARNING: Nick length (%i) exceeds max NICKLEN(%l) defined by server")
6492 (no-default-channel . "No default channel")
6493 (no-invitation . "You've got no invitation")
6494 (no-target . "No target")
6495 (ops . "%i operator%s: %o")
6496 (ops-none . "No operators in this channel.")
6497 (undefined-ctcp . "Undefined CTCP query received. Silently ignored")
6498 (variable-not-bound . "Variable not bound!")
6499 (ACTION . "* %n %a")
6500 (CTCP-CLIENTINFO . "Client info for %n: %m")
6501 (CTCP-ECHO . "Echo %n: %m")
6502 (CTCP-FINGER . "Finger info for %n: %m")
6503 (CTCP-PING . "Ping time to %n is %t")
6504 (CTCP-TIME . "Time by %n is %m")
6505 (CTCP-UNKNOWN . "Unknown CTCP message from %n (%u@%h): %m")
6506 (CTCP-VERSION . "Version for %n is %m")
6508 (INVITE . "%n (%u@%h) invites you to channel %c")
6509 (JOIN . "%n (%u@%h) has joined channel %c")
6510 (JOIN-you . "You have joined channel %c")
6511 (KICK . "%n (%u@%h) has kicked %k off channel %c: %r")
6512 (KICK-you . "You have been kicked off channel %c by %n (%u@%h): %r")
6513 (KICK-by-you . "You have kicked %k off channel %c: %r")
6514 (MODE . "%n (%u@%h) has changed mode for %t to %m")
6515 (MODE-nick . "%n has changed mode for %t to %m")
6516 (NICK . "%n (%u@%h) is now known as %N")
6517 (NICK-you . "Your new nickname is %N")
6518 (PART . erc-message-english-PART)
6519 (PING . "PING from server (last: %s sec. ago)")
6520 (PONG . "PONG from %h (%i second%s)")
6521 (QUIT . "%n (%u@%h) has quit: %r")
6523 (WALLOPS . "Wallops from %n: %m")
6524 (s004 . "%s %v %U %C")
6525 (s221 . "User modes for %n: %m")
6526 (s252 . "%i operator(s) online")
6527 (s253 . "%i unknown connection(s)")
6528 (s254 . "%i channels formed")
6529 (s275 . "%n %m")
6530 (s301 . "%n is AWAY: %r")
6531 (s303 . "Is online: %n")
6532 (s305 . "%m")
6533 (s306 . "%m")
6534 (s307 . "%n %m")
6535 (s311 . "%n is %f (%u@%h)")
6536 (s312 . "%n is/was on server %s (%c)")
6537 (s313 . "%n is an IRC operator")
6538 (s314 . "%n was %f (%u@%h)")
6539 (s317 . "%n has been idle for %i")
6540 (s317-on-since . "%n has been idle for %i, on since %t")
6541 (s319 . "%n is on channel(s): %c")
6542 (s320 . "%n is an identified user")
6543 (s321 . "Channel Users Topic")
6544 (s322 . "%c [%u] %t")
6545 (s324 . "%c modes: %m")
6546 (s328 . "%c URL: %u")
6547 (s329 . "%c was created on %t")
6548 (s330 . "%n %a %i")
6549 (s331 . "No topic is set for %c")
6550 (s332 . "Topic for %c: %T")
6551 (s333 . "%c: topic set by %n, %t")
6552 (s341 . "Inviting %n to channel %c")
6553 (s352 . "%-11c %-10n %-4a %u@%h (%f)")
6554 (s353 . "Users on %c: %u")
6555 (s367 . "Ban for %b on %c")
6556 (s367-set-by . "Ban for %b on %c set by %s on %t")
6557 (s368 . "Banlist of %c ends.")
6558 (s379 . "%c: Forwarded to %f")
6559 (s391 . "The time at %s is %t")
6560 (s401 . "%n: No such nick/channel")
6561 (s403 . "%c: No such channel")
6562 (s404 . "%c: Cannot send to channel")
6563 (s405 . "%c: You have joined too many channels")
6564 (s406 . "%n: There was no such nickname")
6565 (s412 . "No text to send")
6566 (s421 . "%c: Unknown command")
6567 (s431 . "No nickname given")
6568 (s432 . "%n is an erroneous nickname")
6569 (s442 . "%c: You're not on that channel")
6570 (s445 . "SUMMON has been disabled")
6571 (s446 . "USERS has been disabled")
6572 (s451 . "You have not registered")
6573 (s461 . "%c: not enough parameters")
6574 (s462 . "Unauthorized command (already registered)")
6575 (s463 . "Your host isn't among the privileged")
6576 (s464 . "Password incorrect")
6577 (s465 . "You are banned from this server")
6578 (s474 . "You can't join %c because you're banned (+b)")
6579 (s475 . "You must specify the correct channel key (+k) to join %c")
6580 (s481 . "Permission Denied - You're not an IRC operator")
6581 (s482 . "You need to be a channel operator of %c to do that")
6582 (s483 . "You can't kill a server!")
6583 (s484 . "Your connection is restricted!")
6584 (s485 . "You're not the original channel operator")
6585 (s491 . "No O-lines for your host")
6586 (s501 . "Unknown MODE flag")
6587 (s502 . "You can't change modes for other users")
6588 (s671 . "%n %a")))
6590 (defun erc-message-english-PART (&rest args)
6591 "Format a proper PART message.
6593 This function is an example on what could be done with formatting
6594 functions."
6595 (let ((nick (cadr (memq ?n args)))
6596 (user (cadr (memq ?u args)))
6597 (host (cadr (memq ?h args)))
6598 (channel (cadr (memq ?c args)))
6599 (reason (cadr (memq ?r args))))
6600 (if (string= nick (erc-current-nick))
6601 (format "You have left channel %s" channel)
6602 (format "%s (%s@%s) has left channel %s%s"
6603 nick user host channel
6604 (if (not (string= reason ""))
6605 (format ": %s"
6606 (erc-replace-regexp-in-string "%" "%%" reason))
6607 "")))))
6610 (defvar erc-current-message-catalog 'english)
6611 (make-variable-buffer-local 'erc-current-message-catalog)
6613 (defun erc-retrieve-catalog-entry (entry &optional catalog)
6614 "Retrieve ENTRY from CATALOG.
6616 If CATALOG is nil, `erc-current-message-catalog' is used.
6618 If ENTRY is nil in CATALOG, it is retrieved from the fallback,
6619 english, catalog."
6620 (unless catalog (setq catalog erc-current-message-catalog))
6621 (let ((var (erc-make-message-variable-name catalog entry)))
6622 (if (boundp var)
6623 (symbol-value var)
6624 (when (boundp (erc-make-message-variable-name 'english entry))
6625 (symbol-value (erc-make-message-variable-name 'english entry))))))
6627 (defun erc-format-message (msg &rest args)
6628 "Format MSG according to ARGS.
6630 See also `format-spec'."
6631 (when (eq (logand (length args) 1) 1) ; oddp
6632 (error "Obscure usage of this function appeared"))
6633 (let ((entry (erc-retrieve-catalog-entry msg)))
6634 (when (not entry)
6635 (error "No format spec for message %s" msg))
6636 (when (functionp entry)
6637 (setq entry (apply entry args)))
6638 (format-spec entry (apply 'format-spec-make args))))
6640 ;;; Various hook functions
6642 (add-hook 'kill-buffer-hook 'erc-kill-buffer-function)
6644 (defcustom erc-kill-server-hook '(erc-kill-server)
6645 "Invoked whenever a server buffer is killed via `kill-buffer'."
6646 :group 'erc-hooks
6647 :type 'hook)
6649 (defcustom erc-kill-channel-hook '(erc-kill-channel)
6650 "Invoked whenever a channel-buffer is killed via `kill-buffer'."
6651 :group 'erc-hooks
6652 :type 'hook)
6654 (defcustom erc-kill-buffer-hook nil
6655 "Hook run whenever a non-server or channel buffer is killed.
6657 See also `kill-buffer'."
6658 :group 'erc-hooks
6659 :type 'hook)
6661 (defun erc-kill-buffer-function ()
6662 "Function to call when an ERC buffer is killed.
6663 This function should be on `kill-buffer-hook'.
6664 When the current buffer is in `erc-mode', this function will run
6665 one of the following hooks:
6666 `erc-kill-server-hook' if the server buffer was killed,
6667 `erc-kill-channel-hook' if a channel buffer was killed,
6668 or `erc-kill-buffer-hook' if any other buffer."
6669 (when (eq major-mode 'erc-mode)
6670 (erc-remove-channel-users)
6671 (cond
6672 ((eq (erc-server-buffer) (current-buffer))
6673 (run-hooks 'erc-kill-server-hook))
6674 ((erc-channel-p (erc-default-target))
6675 (run-hooks 'erc-kill-channel-hook))
6676 (t
6677 (run-hooks 'erc-kill-buffer-hook)))))
6679 (defun erc-kill-server ()
6680 "Sends a QUIT command to the server when the server buffer is killed.
6681 This function should be on `erc-kill-server-hook'."
6682 (when (erc-server-process-alive)
6683 (setq erc-server-quitting t)
6684 (erc-server-send (format "QUIT :%s" (funcall erc-quit-reason nil)))))
6686 (defun erc-kill-channel ()
6687 "Sends a PART command to the server when the channel buffer is killed.
6688 This function should be on `erc-kill-channel-hook'."
6689 (when (erc-server-process-alive)
6690 (let ((tgt (erc-default-target)))
6691 (erc-server-send (format "PART %s :%s" tgt
6692 (funcall erc-part-reason nil))
6693 nil tgt))))
6695 ;;; Dealing with `erc-parsed'
6697 (defun erc-find-parsed-property ()
6698 "Find the next occurrence of the `erc-parsed' text property."
6699 (text-property-not-all (point-min) (point-max) 'erc-parsed nil))
6701 (defun erc-restore-text-properties ()
6702 "Restore the property 'erc-parsed for the region."
6703 (let ((parsed-posn (erc-find-parsed-property)))
6704 (put-text-property
6705 (point-min) (point-max)
6706 'erc-parsed (when parsed-posn (erc-get-parsed-vector parsed-posn)))))
6708 (defun erc-get-parsed-vector (point)
6709 "Return the whole parsed vector on POINT."
6710 (get-text-property point 'erc-parsed))
6712 (defun erc-get-parsed-vector-nick (vect)
6713 "Return nickname in the parsed vector VECT."
6714 (let* ((untreated-nick (and vect (erc-response.sender vect)))
6715 (maybe-nick (when untreated-nick
6716 (car (split-string untreated-nick "!")))))
6717 (when (and (not (null maybe-nick))
6718 (erc-is-valid-nick-p maybe-nick))
6719 untreated-nick)))
6721 (defun erc-get-parsed-vector-type (vect)
6722 "Return message type in the parsed vector VECT."
6723 (and vect
6724 (erc-response.command vect)))
6726 ;; Teach url.el how to open irc:// URLs with ERC.
6727 ;; To activate, customize `url-irc-function' to `url-irc-erc'.
6729 ;;;###autoload
6730 (defun erc-handle-irc-url (host port channel user password)
6731 "Use ERC to IRC on HOST:PORT in CHANNEL as USER with PASSWORD.
6732 If ERC is already connected to HOST:PORT, simply /join CHANNEL.
6733 Otherwise, connect to HOST:PORT as USER and /join CHANNEL."
6734 (let ((server-buffer
6735 (car (erc-buffer-filter
6736 (lambda ()
6737 (and (string-equal erc-session-server host)
6738 (= erc-session-port port)
6739 (erc-open-server-buffer-p)))))))
6740 (with-current-buffer (or server-buffer (current-buffer))
6741 (if (and server-buffer channel)
6742 (erc-cmd-JOIN channel)
6743 (erc-open host port (or user (erc-compute-nick)) (erc-compute-full-name)
6744 (not server-buffer) password nil channel
6745 (when server-buffer
6746 (get-buffer-process server-buffer)))))))
6748 (provide 'erc)
6750 ;; Deprecated. We might eventually stop requiring the goodies automatically.
6751 ;; IMPORTANT: This require must appear _after_ the above (provide 'erc) to
6752 ;; avoid a recursive require error when byte-compiling the entire package.
6753 (require 'erc-goodies)
6755 ;;; erc.el ends here
6756 ;;
6757 ;; Local Variables:
6758 ;; outline-regexp: ";;+"
6759 ;; indent-tabs-mode: t
6760 ;; tab-width: 8
6761 ;; End: