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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 ;; Maintainer: emacs-devel@gnu.org
13 ;; Keywords: IRC, chat, client, Internet
14 ;; Version: 5.3
16 ;; This file is part of GNU Emacs.
18 ;; GNU Emacs is free software: you can redistribute it and/or modify
19 ;; it under the terms of the GNU General Public License as published by
20 ;; the Free Software Foundation, either version 3 of the License, or
21 ;; (at your option) any later version.
23 ;; GNU Emacs is distributed in the hope that it will be useful,
24 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
25 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 ;; GNU General Public License for more details.
28 ;; You should have received a copy of the GNU General Public License
29 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
31 ;;; Commentary:
33 ;; ERC is a powerful, modular, and extensible IRC client for Emacs.
35 ;; For more information, see the following URLs:
36 ;; * http://sv.gnu.org/projects/erc/
37 ;; * http://www.emacswiki.org/cgi-bin/wiki/ERC
39 ;; As of 2006-06-13, ERC development is now hosted on Savannah
40 ;; (http://sv.gnu.org/projects/erc). I invite everyone who wants to
41 ;; hack on it to contact me <mwolson@gnu.org> in order to get write
42 ;; access to the shared Arch archive.
44 ;; Installation:
46 ;; Put erc.el in your load-path, and put (require 'erc) in your .emacs.
48 ;; Configuration:
50 ;; Use M-x customize-group RET erc RET to get an overview
51 ;; of all the variables you can tweak.
53 ;; Usage:
55 ;; To connect to an IRC server, do
56 ;;
57 ;; M-x erc RET
58 ;;
59 ;; After you are connected to a server, you can use C-h m or have a look at
60 ;; the ERC menu.
62 ;;; History:
63 ;;
65 ;;; Code:
78 "http://emacswiki.org/cgi-bin/wiki/ERC (mailing list: erc-discuss@gnu.org)"
82 "Emacs Internet Relay Chat client."
89 "Creating new ERC buffers"
93 "Settings for how various things are displayed"
97 "Displaying information in the mode-line and header"
101 "Ignoring certain messages"
105 "Hide specified message types sent by lurkers"
110 "Using separate buffers for private discussions"
114 "Quitting and parting channels"
118 "Know what is sent and received; control the display of sensitive data."
122 "Running scripts at startup and with /LOAD"
127 ;; compatibility with older ERC releases
138 ;; tunable connection and authentication parameters
141 "IRC server to use if one is not provided.
142 See function `erc-compute-server' for more details on connection
143 parameters and authentication."
149 "IRC port to use if not specified.
151 This can be either a string or a number."
158 "Nickname to use if one is not provided.
160 This can be either a string, or a list of strings.
161 In the latter case, if the first nick in the list is already in use,
162 other nicks are tried in the list order.
164 See function `erc-compute-nick' for more details on connection
165 parameters and authentication."
172 "The string to append to the nick if it is already in use."
177 "If the nickname you chose isn't available, and this option is non-nil,
178 ERC should automatically attempt to connect with another nickname.
180 You can manually set another nickname with the /NICK command."
185 "User full name.
187 This can be either a string or a function to call.
189 See function `erc-compute-full-name' for more details on connection
190 parameters and authentication."
199 "Password to use when authenticating to an IRC server.
200 It is not strictly necessary to provide this, since ERC will
204 "Initial user modes to be set after a connection is established."
210 "Asks before using the default password, or whether to enter a new one."
215 "Warn the user if they attempt to send a blank line."
220 "If set to non-nil, send lines consisting of only whitespace."
225 "If non-nil, do not display the prompt for commands.
227 \(A command is any input starting with a '/').
229 See also the variables `erc-prompt' and `erc-command-indicator'."
233 ;; tunable GUI stuff
236 "If non-nil, display one's own nickname when sending a message.
244 "A set of standard IRC Message types."
254 "List of IRC type messages to hide.
264 "Run this hook with arguments (NICK IP REASON) when disconnected.
265 This happens before automatic reconnection. Note, that
266 `erc-server-QUIT-functions' might not be run when we disconnect,
267 simply because we do not necessarily receive the QUIT event."
272 "These functions get called when the user hits TAB in ERC.
273 Each function in turn is called until one returns non-nil to
274 indicate it has handled the input."
279 "Hook run when we join a channel. Hook functions are called
280 without arguments, with the current buffer set to the buffer of
281 the new channel.
283 See also `erc-server-JOIN-functions', `erc-part-hook'."
288 "Hook run when processing a quit command directed at our nick.
290 The hook receives one argument, the current PROCESS.
291 See also `erc-server-QUIT-functions' and `erc-disconnected-hook'."
296 "Hook run when processing a PART message directed at our nick.
298 The hook receives one argument, the current BUFFER.
299 See also `erc-server-QUIT-functions', `erc-quit-hook' and
300 `erc-disconnected-hook'."
305 "Hook run when processing a KICK message directed at our nick.
307 The hook receives one argument, the current BUFFER.
308 See also `erc-server-PART-functions' and `erc-part-hook'."
313 "List of functions run when your nick was successfully changed.
315 Each function should accept two arguments, NEW-NICK and OLD-NICK."
320 "Hook called just before `erc' calls `erc-connect'.
321 Functions are passed a buffer as the first argument."
327 "A hash table of members in the current channel, which
328 associates nicknames with cons cells of the form:
329 \(USER . MEMBER-DATA) where USER is a pointer to an
330 erc-server-user struct, and MEMBER-DATA is a pointer to an
335 "A hash table of users on the current server, which associates
340 "Convert STRING to IRC standard conforming downcase."
350 s))
353 "Execute BODY in the current ERC server buffer.
354 If no server buffer exists, return nil."
363 ;; User data
364 nickname host login full-name info
365 ;; Buffers
366 ;;
367 ;; This is an alist of the form (BUFFER . CHANNEL-DATA), where
368 ;; CHANNEL-DATA is either nil or an erc-channel-user struct.
370 )
373 op voice
374 ;; Last message time (in the form of the return value of
375 ;; (current-time)
376 ;;
377 ;; This is useful for ordered name completion.
381 "Find the (USER . CHANNEL-DATA) element corresponding to NICK
382 in the current buffer's `erc-channel-users' hash table."
386 "Find the USER corresponding to NICK in the current server's
387 `erc-server-users' hash table."
392 "This function is for internal use only.
394 Adds USER with nickname NICK to the `erc-server-users' hash table."
399 "This function is for internal use only.
401 Removes the user with nickname NICK from the `erc-server-users'
402 hash table. This user is not removed from the
403 `erc-channel-users' lists of other buffers.
405 See also: `erc-remove-user'."
410 "This function is for internal use only.
412 Changes the nickname of USER to NEW-NICK in the
413 `erc-server-users' hash table. The `erc-channel-users' lists of
414 other buffers are also changed."
426 erc-channel-users)))))))
429 "This function is for internal use only.
431 Removes the user with nickname NICK from the `erc-channel-users'
432 list for this channel. If this user is not in the
433 `erc-channel-users' list of any other buffers, the user is also
434 removed from the server's `erc-server-users' list.
436 See also: `erc-remove-server-user' and `erc-remove-user'."
448 "This function is for internal use only.
450 Removes the user with nickname NICK from the `erc-server-users'
451 list as well as from all `erc-channel-users' lists.
453 See also: `erc-remove-server-user' and
454 `erc-remove-channel-user'."
466 "This function is for internal use only.
468 Removes all users in the current channel. This is called by
469 `erc-server-PART' and `erc-server-QUIT'."
475 erc-channel-users)
479 "Return t if NICK is an operator in the current channel."
487 "Return t if NICK has voice in the current channel."
495 "Return a list of users in the current channel. Each element
496 of the list is of the form (USER . CHANNEL-DATA), where USER is
497 an erc-server-user struct, and CHANNEL-DATA is either nil or an
498 erc-channel-user struct.
500 See also: `erc-sort-channel-users-by-activity'"
505 erc-channel-users))
506 users))
509 "Return a list of known nicknames on the current server."
516 nicks)))
517 erc-server-users)
518 nicks))))
521 "Return a list of known nicknames on the current channel."
527 nicks)))
528 erc-channel-users)
529 nicks)))
532 "Return an alist of known nicknames on the current server."
539 nicks)))
540 erc-server-users)
541 nicks))))
544 "Return an alist of known nicknames on the current channel."
550 nicks)))
551 erc-channel-users)
552 nicks)))
555 "Sort LIST such that users which have spoken most recently are listed first.
556 LIST must be of the form (USER . CHANNEL-DATA).
558 See also: `erc-get-channel-user-list'."
569 "Sort LIST so that users' nicknames are in alphabetical order.
570 LIST must be of the form (USER . CHANNEL-DATA).
572 See also: `erc-get-channel-user-list'."
587 "List of strings representing channel modes.
601 "Return a copy of STRING will all text-properties removed."
604 newstring))
607 "Prompt used by ERC. Trailing whitespace is not required."
612 "Return the input prompt as a string.
614 See also the variable `erc-prompt'."
617 erc-prompt)))
620 prompt)))
623 "Indicator used by ERC for showing commands.
625 If non-nil, this will be used in the ERC buffer to indicate
626 commands (i.e., input starting with a '/').
628 If nil, the prompt will be constructed from the variable `erc-prompt'."
633 "Return the command indicator prompt as a string.
635 This only has any meaning if the variable `erc-command-indicator' is non-nil."
639 erc-command-indicator)))
642 prompt))))
645 "Prefix for all notices."
650 "Determines how to highlight notices.
651 See `erc-notice-prefix'.
653 The following values are allowed:
655 'prefix - highlight notice prefix only
656 'all - highlight the entire notice
658 Any other value disables notice's highlighting altogether."
665 "List of functions to call to echo a private notice.
666 Each function is called with four arguments, the string
667 to display, the parsed server message, the target buffer (or
668 nil), and the sender. The functions are called in order, until a
669 function evaluates to non-nil. These hooks are called after
670 those specified in `erc-echo-notice-always-hook'.
672 See also: `erc-echo-notice-always-hook',
673 `erc-echo-notice-in-default-buffer',
674 `erc-echo-notice-in-target-buffer',
675 `erc-echo-notice-in-minibuffer',
676 `erc-echo-notice-in-server-buffer',
677 `erc-echo-notice-in-active-non-server-buffer',
678 `erc-echo-notice-in-active-buffer',
679 `erc-echo-notice-in-user-buffers',
680 `erc-echo-notice-in-user-and-target-buffers',
681 `erc-echo-notice-in-first-user-buffer'"
685 erc-echo-notice-in-target-buffer
686 erc-echo-notice-in-minibuffer
687 erc-echo-notice-in-server-buffer
688 erc-echo-notice-in-active-non-server-buffer
689 erc-echo-notice-in-active-buffer
690 erc-echo-notice-in-user-buffers
691 erc-echo-notice-in-user-and-target-buffers
692 erc-echo-notice-in-first-user-buffer))
696 "List of functions to call to echo a private notice.
697 Each function is called with four arguments, the string
698 to display, the parsed server message, the target buffer (or
699 nil), and the sender. The functions are called in order, and all
700 functions are called. These hooks are called before those
701 specified in `erc-echo-notice-hook'.
703 See also: `erc-echo-notice-hook',
704 `erc-echo-notice-in-default-buffer',
705 `erc-echo-notice-in-target-buffer',
706 `erc-echo-notice-in-minibuffer',
707 `erc-echo-notice-in-server-buffer',
708 `erc-echo-notice-in-active-non-server-buffer',
709 `erc-echo-notice-in-active-buffer',
710 `erc-echo-notice-in-user-buffers',
711 `erc-echo-notice-in-user-and-target-buffers',
712 `erc-echo-notice-in-first-user-buffer'"
716 erc-echo-notice-in-target-buffer
717 erc-echo-notice-in-minibuffer
718 erc-echo-notice-in-server-buffer
719 erc-echo-notice-in-active-non-server-buffer
720 erc-echo-notice-in-active-buffer
721 erc-echo-notice-in-user-buffers
722 erc-echo-notice-in-user-and-target-buffers
723 erc-echo-notice-in-first-user-buffer))
725 ;; other tunable parameters
728 "If non-nil, do a whowas on a nick if no such nick."
733 "If non-nil, show every time you get a PING or PONG from the server."
738 "Let others know you are back when you are no longer marked away.
739 This happens in this form:
740 * <nick> is back (gone for <time>)
742 Many consider it impolite to do so automatically."
747 "The nickname to take when you are marked as being away."
750 string))
753 "If non-nil, then all incoming CTCP requests will be shown."
758 "Disable replies to CTCP requests that require a reply.
759 If non-nil, then all incoming CTCP requests that normally require
760 an automatic reply (like VERSION or PING) will be ignored. Good to
761 set if some hacker is trying to flood you away."
766 "Be paranoid, don't give away your machine name."
771 "Prompt for channel key when using `erc-join-channel' interactively."
776 "Use this as your email user ID."
781 "Use this as the name of your system.
782 If nil, ERC will call `system-name' to get this information."
785 string))
788 "List of regexps matching user identifiers to ignore.
791 identifier matches, the message from the person will not be
792 processed."
798 "List of regexps matching user identifiers to ignore completely.
800 This differs from `erc-ignore-list' in that it also ignores any
801 messages directed at the user.
805 If an identifier matches, or a message is addressed to a nick
806 whose identifier matches, the message will not be processed.
808 CAVEAT: ERC doesn't know about the user and host of anyone who
809 was already in the channel when you joined, but never said
810 anything, so it won't be able to match the user and host of those
811 people. You can update the ERC internal info using /WHO *."
816 "If non-nil, flood protection is enabled.
817 Flooding is sending too much information to the server in too
818 short of an interval, which may cause the server to terminate the
819 connection.
823 ;; Script parameters
829 "List of files to try for a startup script.
830 The first existent and readable one will get executed.
832 If the filename ends with `.el' it is presumed to be an Emacs Lisp
833 script and it gets (load)ed. Otherwise it is treated as a bunch of
834 regular IRC commands."
839 "List of directories to look for a script in /load command.
840 The script is first searched in the current directory, then in each
841 directory in the list."
846 "If non-nil, echo the IRC script commands locally."
855 "Kill the channel buffer on PART.
856 This variable should probably stay nil, as ERC can reuse buffers if
857 you rejoin them later."
862 "Kill all query (also channel) buffers of this server on QUIT.
863 See the variable `erc-kill-buffer-on-part' for details."
868 "Kill the server buffer of the process on QUIT."
873 "Alist of possible arguments to the /quit command.
875 Each element has the form:
876 (REGEXP RESULT)
878 If REGEXP matches the argument to /quit, then its relevant RESULT
879 will be used. RESULT may be either a string, or a function. If
880 a function, it should return the quit message as a string.
882 If no elements match, then the empty string is used.
884 As an example:
885 (setq erc-quit-reason-various-alist
891 as the quit message."
896 "Alist of possible arguments to the /part command.
898 Each element has the form:
899 (REGEXP RESULT)
901 If REGEXP matches the argument to /part, then its relevant RESULT
902 will be used. RESULT may be either a string, or a function. If
903 a function, it should return the part message as a string.
905 If no elements match, then the empty string is used.
907 As an example:
908 (setq erc-part-reason-various-alist
914 as the part message."
919 "A function which returns the reason for quitting.
921 The function is passed a single argument, the string typed by the
929 "A function which returns the reason for parting a channel.
931 The function is passed a single argument, the string typed by the
941 ;; variables available for IRC scripts
946 ;; Hooks
949 "Hook variables for fancy customizations of ERC."
953 "Hook run after `erc-mode' setup is finished."
959 "Put functions which should get called more or less periodically here.
960 The idea is that servers always play ping pong with the client, and so there
961 is no need for any idle-timer games with Emacs."
966 "Hook called first when some text is inserted through `erc-display-line'.
967 It gets called with one argument, STRING.
968 To be able to modify the inserted text, use `erc-insert-modify-hook' instead.
969 Filtering functions can set `erc-insert-this' to nil to avoid
970 display of that particular string at all."
975 "Hook called first when some text is sent through `erc-send-current-line'.
976 It gets called with one argument, STRING.
978 To change the text that will be sent, set the variable STR which is
979 used in `erc-send-current-line'.
981 To change the text inserted into the buffer without changing the text
982 that will be sent, use `erc-send-modify-hook' instead.
984 Filtering functions can set `erc-send-this' to nil to avoid sending of
985 that particular string at all and `erc-insert-this' to prevent
986 inserting that particular string into the buffer.
988 Note that it's useless to set `erc-send-this' to nil and
989 `erc-insert-this' to t. ERC is sane enough to not insert the text
990 anyway."
995 "Insert the text into the target buffer or not.
996 Functions on `erc-insert-pre-hook' can set this variable to nil
1000 "Send the text to the target or not.
1001 Functions on `erc-send-pre-hook' can set this variable to nil
1005 "Insertion hook for functions that will change the text's appearance.
1006 This hook is called just after `erc-insert-pre-hook' when the value
1007 of `erc-insert-this' is t.
1008 While this hook is run, narrowing is in effect and `current-buffer' is
1009 the buffer where the text got inserted. One possible value to add here
1010 is `erc-fill'."
1015 "This hook is called just after `erc-insert-modify-hook'.
1016 At this point, all modifications from prior hook functions are done."
1020 erc-make-read-only
1021 erc-save-buffer-in-logs))
1024 "Sending hook for functions that will change the text's appearance.
1025 This hook is called just after `erc-send-pre-hook' when the values
1026 of `erc-send-this' and `erc-insert-this' are both t.
1027 While this hook is run, narrowing is in effect and `current-buffer' is
1028 the buffer where the text got inserted.
1030 Note that no function in this hook can change the appearance of the
1031 text that is sent. Only changing the sent text's appearance on the
1032 sending user's screen is possible. One possible value to add here
1033 is `erc-fill'."
1038 "This hook is called just after `erc-send-modify-hook'.
1039 At this point, all modifications from prior hook functions are done.
1040 NOTE: The functions on this hook are called _before_ sending a command
1041 to the server.
1043 This function is called with narrowing, ala `erc-send-modify-hook'."
1053 "Hook called after a message has been parsed by ERC.
1055 The single argument to the functions is the unmodified string
1056 which the local user typed."
1059 ;; mode-specific tables
1066 ;; Make dabbrev-expand useful for nick names
1069 syntax-table)
1081 (define-key map "\C-c\C-a" 'erc-bol)
1082 (define-key map "\C-c\C-b" 'erc-iswitchb)
1083 (define-key map "\C-c\C-c" 'erc-toggle-interpret-controls)
1084 (define-key map "\C-c\C-d" 'erc-input-action)
1085 (define-key map "\C-c\C-e" 'erc-toggle-ctcp-autoresponse)
1086 (define-key map "\C-c\C-f" 'erc-toggle-flood-control)
1087 (define-key map "\C-c\C-i" 'erc-invite-only-mode)
1088 (define-key map "\C-c\C-j" 'erc-join-channel)
1089 (define-key map "\C-c\C-n" 'erc-channel-names)
1090 (define-key map "\C-c\C-o" 'erc-get-channel-mode-from-keypress)
1091 (define-key map "\C-c\C-p" 'erc-part-from-channel)
1092 (define-key map "\C-c\C-q" 'erc-quit-server)
1093 (define-key map "\C-c\C-r" 'erc-remove-text-properties-region)
1094 (define-key map "\C-c\C-t" 'erc-set-topic)
1095 (define-key map "\C-c\C-u" 'erc-kill-input)
1096 (define-key map "\C-c\C-x" 'erc-quit-server)
1100 ;; Suppress `font-lock-fontify-block' key binding since it
1101 ;; destroys face properties.
1102 (define-key map [remap font-lock-fontify-block] 'undefined)
1104 map)
1105 "ERC keymap.")
1107 ;; Faces
1109 ; Honestly, I have a horrible sense of color and the "defaults" below
1110 ; are supposed to be really bad. But colors ARE required in IRC to
1111 ; convey different parts of conversation. If you think you know better
1112 ; defaults - send them to me.
1114 ;; Now colors are a bit nicer, at least to my eyes.
1115 ;; You may still want to change them to better fit your background.-- S.B.
1117 (defgroup erc-faces nil
1118 "Faces for ERC."
1119 :group 'erc)
1121 (defface erc-default-face '((t))
1122 "ERC default face."
1123 :group 'erc-faces)
1125 (defface erc-direct-msg-face '((t :foreground "IndianRed"))
1126 "ERC face used for messages you receive in the main erc buffer."
1127 :group 'erc-faces)
1129 (defface erc-header-line
1130 '((t :foreground "grey20" :background "grey90"))
1131 "ERC face used for the header line.
1133 This will only be used if `erc-header-line-face-method' is non-nil."
1134 :group 'erc-faces)
1136 (defface erc-input-face '((t :foreground "brown"))
1137 "ERC face used for your input."
1138 :group 'erc-faces)
1140 (defface erc-prompt-face
1141 '((t :weight bold :foreground "Black" :background "lightBlue2"))
1142 "ERC face for the prompt."
1143 :group 'erc-faces)
1145 (defface erc-command-indicator-face
1146 '((t :weight bold))
1147 "ERC face for the command indicator.
1148 See the variable `erc-command-indicator'."
1149 :group 'erc-faces)
1151 (defface erc-notice-face
1152 '((default :weight bold)
1153 (((class color) (min-colors 88)) :foreground "SlateBlue")
1154 (t :foreground "blue"))
1155 "ERC face for notices."
1156 :group 'erc-faces)
1158 (defface erc-action-face '((t :weight bold))
1159 "ERC face for actions generated by /ME."
1160 :group 'erc-faces)
1162 (defface erc-error-face '((t :foreground "red"))
1163 "ERC face for errors."
1164 :group 'erc-faces)
1166 ;; same default color as `erc-input-face'
1167 (defface erc-my-nick-face '((t :weight bold :foreground "brown"))
1168 "ERC face for your current nickname in messages sent by you.
1169 See also `erc-show-my-nick'."
1170 :group 'erc-faces)
1172 (defface erc-nick-default-face '((t :weight bold))
1173 "ERC nickname default face."
1174 :group 'erc-faces)
1176 (defface erc-nick-msg-face '((t :weight bold :foreground "IndianRed"))
1177 "ERC nickname face for private messages."
1178 :group 'erc-faces)
1180 ;; Debugging support
1182 (defvar erc-log-p nil
1183 "When set to t, generate debug messages in a separate debug buffer.")
1185 (defvar erc-debug-log-file (expand-file-name "ERC.debug")
1186 "Debug log file name.")
1188 (defvar erc-dbuf nil)
1189 (make-variable-buffer-local 'erc-dbuf)
1191 (defmacro define-erc-module (name alias doc enable-body disable-body
1192 &optional local-p)
1193 "Define a new minor mode using ERC conventions.
1194 Symbol NAME is the name of the module.
1195 Symbol ALIAS is the alias to use, or nil.
1196 DOC is the documentation string to use for the minor mode.
1197 ENABLE-BODY is a list of expressions used to enable the mode.
1198 DISABLE-BODY is a list of expressions used to disable the mode.
1199 If LOCAL-P is non-nil, the mode will be created as a buffer-local
1200 mode, rather than a global one.
1202 This will define a minor mode called erc-NAME-mode, possibly
1203 an alias erc-ALIAS-mode, as well as the helper functions
1204 erc-NAME-enable, and erc-NAME-disable.
1206 Example:
1209 (define-erc-module replace nil
1211 ((add-hook 'erc-insert-modify-hook
1212 'erc-replace-insert))
1213 ((remove-hook 'erc-insert-modify-hook
1214 'erc-replace-insert)))"
1215 (declare (doc-string 3))
1216 (let* ((sn (symbol-name name))
1217 (mode (intern (format "erc-%s-mode" (downcase sn))))
1218 (group (intern (format "erc-%s" (downcase sn))))
1219 (enable (intern (format "erc-%s-enable" (downcase sn))))
1220 (disable (intern (format "erc-%s-disable" (downcase sn)))))
1221 `(progn
1222 (erc-define-minor-mode
1223 ,mode
1224 ,(format "Toggle ERC %S mode.
1225 With a prefix argument ARG, enable %s if ARG is positive,
1226 and disable it otherwise. If called from Lisp, enable the mode
1227 if ARG is omitted or nil.
1228 %s" name name doc)
1229 nil nil nil
1230 :global ,(not local-p) :group (quote ,group)
1231 (if ,mode
1232 (,enable)
1233 (,disable)))
1234 (defun ,enable ()
1235 ,(format "Enable ERC %S mode."
1236 name)
1237 (interactive)
1238 (add-to-list 'erc-modules (quote ,name))
1239 (setq ,mode t)
1240 ,@enable-body)
1241 (defun ,disable ()
1242 ,(format "Disable ERC %S mode."
1243 name)
1244 (interactive)
1245 (setq erc-modules (delq (quote ,name) erc-modules))
1246 (setq ,mode nil)
1247 ,@disable-body)
1248 ,(when (and alias (not (eq name alias)))
1249 `(defalias
1250 (quote
1251 ,(intern
1252 (format "erc-%s-mode"
1253 (downcase (symbol-name alias)))))
1254 (quote
1255 ,mode)))
1256 ;; For find-function and find-variable.
1257 (put ',mode 'definition-name ',name)
1258 (put ',enable 'definition-name ',name)
1259 (put ',disable 'definition-name ',name))))
1261 (defun erc-once-with-server-event (event f)
1262 "Run function F the next time EVENT occurs in the `current-buffer'.
1264 You should make sure that `current-buffer' is a server buffer.
1266 This function temporarily adds a function to EVENT's hook to call F with
1267 two arguments (`proc' and `parsed'). After F is called, the function is
1268 removed from EVENT's hook. F should return either nil
1269 or t, where nil indicates that the other functions on EVENT's hook
1270 should be run too, and t indicates that other functions should
1271 not be run.
1273 Please be sure to use this function in server-buffers. In
1274 channel-buffers it may not work at all, as it uses the LOCAL
1275 argument of `add-hook' and `remove-hook' to ensure multiserver
1276 capabilities."
1277 (unless (erc-server-buffer-p)
1278 (error
1279 "You should only run `erc-once-with-server-event' in a server buffer"))
1280 (let ((fun (make-symbol "fun"))
1281 (hook (erc-get-hook event)))
1282 (put fun 'erc-original-buffer (current-buffer))
1283 (fset fun (lambda (proc parsed)
1284 (with-current-buffer (get fun 'erc-original-buffer)
1285 (remove-hook hook fun t))
1286 (fmakunbound fun)
1287 (funcall f proc parsed)))
1288 (add-hook hook fun nil t)
1289 fun))
1291 (defsubst erc-log (string)
1292 "Logs STRING if logging is on (see `erc-log-p')."
1293 (when erc-log-p
1294 (erc-log-aux string)))
1296 (defun erc-server-buffer ()
1297 "Return the server buffer for the current buffer's process.
1298 The buffer-local variable `erc-server-process' is used to find
1299 the process buffer."
1300 (and (erc-server-buffer-live-p)
1301 (process-buffer erc-server-process)))
1303 (defun erc-server-buffer-live-p ()
1304 "Return t if the server buffer has not been killed."
1305 (and (processp erc-server-process)
1306 (buffer-live-p (process-buffer erc-server-process))))
1308 (defun erc-server-buffer-p (&optional buffer)
1309 "Return non-nil if argument BUFFER is an ERC server buffer.
1311 If BUFFER is nil, the current buffer is used."
1312 (with-current-buffer (or buffer (current-buffer))
1313 (and (eq major-mode 'erc-mode)
1314 (null (erc-default-target)))))
1316 (defun erc-open-server-buffer-p (&optional buffer)
1317 "Return non-nil if argument BUFFER is an ERC server buffer that
1318 has an open IRC process.
1320 If BUFFER is nil, the current buffer is used."
1321 (and (erc-server-buffer-p buffer)
1322 (erc-server-process-alive buffer)))
1324 (defun erc-query-buffer-p (&optional buffer)
1325 "Return non-nil if BUFFER is an ERC query buffer.
1326 If BUFFER is nil, the current buffer is used."
1327 (with-current-buffer (or buffer (current-buffer))
1328 (let ((target (erc-default-target)))
1329 (and (eq major-mode 'erc-mode)
1330 target
1331 (not (memq (aref target 0) '(?# ?& ?+ ?!)))))))
1333 (defun erc-ison-p (nick)
1334 "Return non-nil if NICK is online."
1335 (interactive "sNick: ")
1336 (erc-with-server-buffer
1337 (let ((erc-online-p 'unknown))
1338 (erc-once-with-server-event
1339 303
1340 (lambda (_proc parsed)
1341 (let ((ison (split-string (aref parsed 3))))
1342 (setq erc-online-p (car (erc-member-ignore-case nick ison)))
1343 t)))
1344 (erc-server-send (format "ISON %s" nick))
1345 (while (eq erc-online-p 'unknown) (accept-process-output))
1346 (if (called-interactively-p 'interactive)
1347 (message "%s is %sonline"
1348 (or erc-online-p nick)
1349 (if erc-online-p "" "not "))
1350 erc-online-p))))
1352 (defun erc-log-aux (string)
1353 "Do the debug logging of STRING."
1354 (let ((cb (current-buffer))
1355 (point 1)
1356 (was-eob nil)
1357 (session-buffer (erc-server-buffer)))
1358 (if session-buffer
1359 (progn
1360 (set-buffer session-buffer)
1361 (if (not (and erc-dbuf (bufferp erc-dbuf) (buffer-live-p erc-dbuf)))
1362 (progn
1363 (setq erc-dbuf (get-buffer-create
1364 (concat "*ERC-DEBUG: "
1365 erc-session-server "*")))))
1366 (set-buffer erc-dbuf)
1367 (setq point (point))
1368 (setq was-eob (eobp))
1369 (goto-char (point-max))
1371 (if was-eob (goto-char (point-max))
1372 (goto-char point))
1373 (set-buffer cb))
1374 (message "ERC: ** %s" string))))
1376 ;; Last active buffer, to print server messages in the right place
1378 (defvar erc-active-buffer nil
1379 "The current active buffer, the one where the user typed the last command.
1380 Defaults to the server buffer, and should only be set in the
1381 server buffer.")
1382 (make-variable-buffer-local 'erc-active-buffer)
1384 (defun erc-active-buffer ()
1385 "Return the value of `erc-active-buffer' for the current server.
1386 Defaults to the server buffer."
1387 (erc-with-server-buffer
1388 (if (buffer-live-p erc-active-buffer)
1389 erc-active-buffer
1390 (setq erc-active-buffer (current-buffer)))))
1392 (defun erc-set-active-buffer (buffer)
1393 "Set the value of `erc-active-buffer' to BUFFER."
1394 (cond ((erc-server-buffer)
1395 (with-current-buffer (erc-server-buffer)
1396 (setq erc-active-buffer buffer)))
1397 (t (setq erc-active-buffer buffer))))
1399 ;; Mode activation routines
1401 (define-derived-mode erc-mode fundamental-mode "ERC"
1402 "Major mode for Emacs IRC."
1403 (setq local-abbrev-table erc-mode-abbrev-table)
1404 (when (boundp 'next-line-add-newlines)
1405 (set (make-local-variable 'next-line-add-newlines) nil))
1406 (setq line-move-ignore-invisible t)
1407 (set (make-local-variable 'paragraph-separate)
1409 (set (make-local-variable 'paragraph-start)
1411 (add-hook 'completion-at-point-functions 'erc-complete-word-at-point nil t))
1413 ;; activation
1415 (defconst erc-default-server "irc.freenode.net"
1416 "IRC server to use if it cannot be detected otherwise.")
1418 (defconst erc-default-port 6667
1419 "IRC port to use if it cannot be detected otherwise.")
1421 (defcustom erc-join-buffer 'buffer
1422 "Determines how to display a newly created IRC buffer.
1424 The available choices are:
1426 'window - in another window,
1427 'window-noselect - in another window, but don't select that one,
1428 'frame - in another frame,
1429 'bury - bury it in a new buffer,
1430 'buffer - in place of the current buffer,
1431 any other value - in place of the current buffer."
1432 :group 'erc-buffers
1433 :type '(choice (const :tag "Split window and select" window)
1434 (const :tag "Split window, don't select" window-noselect)
1435 (const :tag "New frame" frame)
1436 (const :tag "Bury in new buffer" bury)
1437 (const :tag "Use current buffer" buffer)
1438 (const :tag "Use current buffer" t)))
1440 (defcustom erc-frame-alist nil
1441 "Alist of frame parameters for creating erc frames.
1442 A value of nil means to use `default-frame-alist'."
1443 :group 'erc-buffers
1444 :type '(repeat (cons :format "%v"
1445 (symbol :tag "Parameter")
1446 (sexp :tag "Value"))))
1448 (defcustom erc-frame-dedicated-flag nil
1449 "Non-nil means the erc frames are dedicated to that buffer.
1450 This only has effect when `erc-join-buffer' is set to `frame'."
1451 :group 'erc-buffers
1452 :type 'boolean)
1454 (defcustom erc-reuse-frames t
1455 "Determines whether new frames are always created.
1456 Non-nil means that a new frame is not created to display an ERC
1457 buffer if there is already a window displaying it. This only has
1458 effect when `erc-join-buffer' is set to `frame'."
1459 :group 'erc-buffers
1460 :type 'boolean)
1462 (defun erc-channel-p (channel)
1463 "Return non-nil if CHANNEL seems to be an IRC channel name."
1464 (cond ((stringp channel)
1465 (memq (aref channel 0) '(?# ?& ?+ ?!)))
1466 ((and (bufferp channel) (buffer-live-p channel))
1467 (with-current-buffer channel
1468 (erc-channel-p (erc-default-target))))
1469 (t nil)))
1471 (defcustom erc-reuse-buffers t
1472 "If nil, create new buffers on joining a channel/query.
1473 If non-nil, a new buffer will only be created when you join
1474 channels with same names on different servers, or have query buffers
1475 open with nicks of the same name on different servers. Otherwise,
1476 the existing buffers will be reused."
1477 :group 'erc-buffers
1478 :type 'boolean)
1480 (defun erc-normalize-port (port)
1481 "Normalize the port specification PORT to integer form.
1482 PORT may be an integer, a string or a symbol. If it is a string or a
1483 symbol, it may have these values:
1484 * irc -> 194
1485 * ircs -> 994
1486 * ircd -> 6667
1487 * ircd-dalnet -> 7000"
1488 (cond
1489 ((symbolp port)
1490 (erc-normalize-port (symbol-name port)))
1491 ((stringp port)
1492 (let ((port-nr (string-to-number port)))
1493 (cond
1494 ((> port-nr 0)
1495 port-nr)
1496 ((string-equal port "irc")
1497 194)
1498 ((string-equal port "ircs")
1499 994)
1500 ((string-equal port "ircd")
1501 6667)
1502 ((string-equal port "ircd-dalnet")
1503 7000)
1504 (t
1505 nil))))
1506 ((numberp port)
1507 port)
1508 (t
1509 nil)))
1511 (defun erc-port-equal (a b)
1512 "Check whether ports A and B are equal."
1513 (= (erc-normalize-port a) (erc-normalize-port b)))
1515 (defun erc-generate-new-buffer-name (server port target)
1516 "Create a new buffer name based on the arguments."
1517 (when (numberp port) (setq port (number-to-string port)))
1518 (let ((buf-name (or target
1519 (or (let ((name (concat server ":" port)))
1520 (when (> (length name) 1)
1521 name))
1522 ;; This fallback should in fact never happen
1523 "*erc-server-buffer*")))
1524 buffer-name)
1525 ;; Reuse existing buffers, but not if the buffer is a connected server
1526 ;; buffer and not if its associated with a different server than the
1527 ;; current ERC buffer.
1528 ;; if buf-name is taken by a different connection (or by something !erc)
1529 ;; then see if "buf-name/server" meets the same criteria
1530 (dolist (candidate (list buf-name (concat buf-name "/" server)))
1531 (if (and (not buffer-name)
1532 erc-reuse-buffers
1533 (get-buffer candidate)
1534 (or target
1535 (with-current-buffer (get-buffer candidate)
1536 (and (erc-server-buffer-p)
1537 (not (erc-server-process-alive)))))
1538 (with-current-buffer (get-buffer candidate)
1539 (and (string= erc-session-server server)
1540 (erc-port-equal erc-session-port port))))
1541 (setq buffer-name candidate)))
1542 ;; if buffer-name is unset, neither candidate worked out for us,
1543 ;; fallback to the old <N> uniquification method:
1544 (or buffer-name (generate-new-buffer-name buf-name)) ))
1546 (defun erc-get-buffer-create (server port target)
1547 "Create a new buffer based on the arguments."
1548 (get-buffer-create (erc-generate-new-buffer-name server port target)))
1551 (defun erc-member-ignore-case (string list)
1552 "Return non-nil if STRING is a member of LIST.
1554 All strings are compared according to IRC protocol case rules, see
1555 `erc-downcase'."
1556 (setq string (erc-downcase string))
1557 (catch 'result
1558 (while list
1559 (if (string= string (erc-downcase (car list)))
1560 (throw 'result list)
1561 (setq list (cdr list))))))
1563 (defmacro erc-with-buffer (spec &rest body)
1564 "Execute BODY in the buffer associated with SPEC.
1566 SPEC should have the form
1568 (TARGET [PROCESS])
1570 If TARGET is a buffer, use it. Otherwise, use the buffer
1571 matching TARGET in the process specified by PROCESS.
1573 If PROCESS is nil, use the current `erc-server-process'.
1574 See `erc-get-buffer' for details.
1576 See also `with-current-buffer'.
1578 \(fn (TARGET [PROCESS]) BODY...)"
1579 (declare (indent 1) (debug ((form &optional form) body)))
1580 (let ((buf (make-symbol "buf"))
1581 (proc (make-symbol "proc"))
1582 (target (make-symbol "target"))
1583 (process (make-symbol "process")))
1584 `(let* ((,target ,(car spec))
1585 (,process ,(cadr spec))
1586 (,buf (if (bufferp ,target)
1587 ,target
1588 (let ((,proc (or ,process
1589 (and (processp erc-server-process)
1590 erc-server-process))))
1591 (if (and ,target ,proc)
1592 (erc-get-buffer ,target ,proc))))))
1593 (when (buffer-live-p ,buf)
1594 (with-current-buffer ,buf
1595 ,@body)))))
1597 (defun erc-get-buffer (target &optional proc)
1598 "Return the buffer matching TARGET in the process PROC.
1599 If PROC is not supplied, all processes are searched."
1600 (let ((downcased-target (erc-downcase target)))
1601 (catch 'buffer
1602 (erc-buffer-filter
1603 (lambda ()
1604 (let ((current (erc-default-target)))
1605 (and (stringp current)
1606 (string-equal downcased-target (erc-downcase current))
1607 (throw 'buffer (current-buffer)))))
1608 proc))))
1610 (defun erc-buffer-filter (predicate &optional proc)
1611 "Return a list of `erc-mode' buffers matching certain criteria.
1612 PREDICATE is a function executed with each buffer, if it returns t, that buffer
1613 is considered a valid match.
1615 PROC is either an `erc-server-process', identifying a certain
1616 server connection, or nil which means all open connections."
1617 (save-excursion
1618 (delq
1619 nil
1620 (mapcar (lambda (buf)
1621 (when (buffer-live-p buf)
1622 (with-current-buffer buf
1623 (and (eq major-mode 'erc-mode)
1624 (or (not proc)
1625 (eq proc erc-server-process))
1626 (funcall predicate)
1627 buf))))
1628 (buffer-list)))))
1630 (defun erc-buffer-list (&optional predicate proc)
1631 "Return a list of ERC buffers.
1632 PREDICATE is a function which executes with every buffer satisfying
1633 the predicate. If PREDICATE is passed as nil, return a list of all ERC
1634 buffers. If PROC is given, the buffers local variable `erc-server-process'
1635 needs to match PROC."
1636 (unless predicate
1637 (setq predicate (lambda () t)))
1638 (erc-buffer-filter predicate proc))
1640 (defmacro erc-with-all-buffers-of-server (process pred &rest forms)
1641 "Execute FORMS in all buffers which have same process as this server.
1642 FORMS will be evaluated in all buffers having the process PROCESS and
1643 where PRED matches or in all buffers of the server process if PRED is
1644 nil."
1645 (declare (indent 1) (debug (form form body)))
1646 ;; Make the evaluation have the correct order
1647 (let ((pre (make-symbol "pre"))
1648 (pro (make-symbol "pro")))
1649 `(let* ((,pro ,process)
1650 (,pre ,pred)
1651 (res (mapcar (lambda (buffer)
1652 (with-current-buffer buffer
1653 ,@forms))
1654 (erc-buffer-list ,pre
1655 ,pro))))
1656 ;; Silence the byte-compiler by binding the result of mapcar to
1657 ;; a variable.
1658 res)))
1660 ;; (iswitchb-mode) will autoload iswitchb.el
1661 (defvar iswitchb-temp-buflist)
1662 (declare-function iswitchb-read-buffer "iswitchb"
1663 (prompt &optional default require-match start matches-set))
1664 (defvar iswitchb-make-buflist-hook)
1666 (defun erc-iswitchb (&optional arg)
1667 "Use `iswitchb-read-buffer' to prompt for a ERC buffer to switch to.
1668 When invoked with prefix argument, use all erc buffers. Without prefix
1669 ARG, allow only buffers related to same session server.
1670 If `erc-track-mode' is in enabled, put the last element of
1671 `erc-modified-channels-alist' in front of the buffer list.
1673 Due to some yet unresolved reason, global function `iswitchb-mode'
1674 needs to be active for this function to work."
1675 (interactive "P")
1676 (let ((enabled (bound-and-true-p iswitchb-mode)))
1677 (or enabled (iswitchb-mode 1))
1678 (unwind-protect
1679 (let ((iswitchb-make-buflist-hook
1680 (lambda ()
1681 (setq iswitchb-temp-buflist
1682 (mapcar 'buffer-name
1683 (erc-buffer-list
1684 nil
1685 (when arg erc-server-process)))))))
1686 (switch-to-buffer
1687 (iswitchb-read-buffer
1688 "Switch-to: "
1689 (if (boundp 'erc-modified-channels-alist)
1690 (buffer-name (caar (last erc-modified-channels-alist)))
1691 nil)
1692 t)))
1693 (or enabled (iswitchb-mode -1)))))
1695 (defun erc-channel-list (proc)
1696 "Return a list of channel buffers.
1697 PROC is the process for the server connection. If PROC is nil, return
1698 all channel buffers on all servers."
1699 (erc-buffer-filter
1700 (lambda ()
1701 (and (erc-default-target)
1702 (erc-channel-p (erc-default-target))))
1703 proc))
1705 (defun erc-buffer-list-with-nick (nick proc)
1706 "Return buffers containing NICK in the `erc-channel-users' list."
1707 (with-current-buffer (process-buffer proc)
1708 (let ((user (gethash (erc-downcase nick) erc-server-users)))
1709 (if user
1710 (erc-server-user-buffers user)
1711 nil))))
1713 ;; Some local variables
1715 (defvar erc-default-recipients nil
1716 "List of default recipients of the current buffer.")
1717 (make-variable-buffer-local 'erc-default-recipients)
1719 (defvar erc-session-user-full-name nil
1720 "Full name of the user on the current server.")
1721 (make-variable-buffer-local 'erc-session-user-full-name)
1723 (defvar erc-channel-user-limit nil
1724 "Limit of users per channel.")
1725 (make-variable-buffer-local 'erc-channel-user-limit)
1727 (defvar erc-channel-key nil
1728 "Key needed to join channel.")
1729 (make-variable-buffer-local 'erc-channel-key)
1731 (defvar erc-invitation nil
1732 "Last invitation channel.")
1733 (make-variable-buffer-local 'erc-invitation)
1735 (defvar erc-away nil
1736 "Non-nil indicates that we are away.
1738 Use `erc-away-time' to access this if you might be in a channel
1739 buffer rather than a server buffer.")
1740 (make-variable-buffer-local 'erc-away)
1742 (defvar erc-channel-list nil
1743 "Server channel list.")
1744 (make-variable-buffer-local 'erc-channel-list)
1746 (defvar erc-bad-nick nil
1747 "Non-nil indicates that we got a `nick in use' error while connecting.")
1748 (make-variable-buffer-local 'erc-bad-nick)
1750 (defvar erc-logged-in nil
1751 "Non-nil indicates that we are logged in.")
1752 (make-variable-buffer-local 'erc-logged-in)
1754 (defvar erc-default-nicks nil
1755 "The local copy of `erc-nick' - the list of nicks to choose from.")
1756 (make-variable-buffer-local 'erc-default-nicks)
1758 (defvar erc-nick-change-attempt-count 0
1759 "Used to keep track of how many times an attempt at changing nick is made.")
1760 (make-variable-buffer-local 'erc-nick-change-attempt-count)
1762 (defun erc-migrate-modules (mods)
1763 "Migrate old names of ERC modules to new ones."
1764 ;; modify `transforms' to specify what needs to be changed
1765 ;; each item is in the format '(old . new)
1766 (let ((transforms '((pcomplete . completion))))
1767 (erc-delete-dups
1768 (mapcar (lambda (m) (or (cdr (assoc m transforms)) m))
1769 mods))))
1771 (defcustom erc-modules '(netsplit fill button match track completion readonly
1772 networks ring autojoin noncommands irccontrols
1773 move-to-prompt stamp menu list)
1774 "A list of modules which ERC should enable.
1775 If you set the value of this without using `customize' remember to call
1776 \(erc-update-modules) after you change it. When using `customize', modules
1777 removed from the list will be disabled."
1778 :get (lambda (sym)
1779 ;; replace outdated names with their newer equivalents
1780 (erc-migrate-modules (symbol-value sym)))
1781 :set (lambda (sym val)
1782 ;; disable modules which have just been removed
1783 (when (and (boundp 'erc-modules) erc-modules val)
1784 (dolist (module erc-modules)
1785 (unless (member module val)
1786 (let ((f (intern-soft (format "erc-%s-mode" module))))
1787 (when (and (fboundp f) (boundp f) (symbol-value f))
1788 (message "Disabling `erc-%s'" module)
1789 (funcall f 0))))))
1790 (set sym val)
1791 ;; this test is for the case where erc hasn't been loaded yet
1792 (when (fboundp 'erc-update-modules)
1793 (erc-update-modules)))
1794 :type
1795 '(set
1796 :greedy t
1797 (const :tag "autoaway: Set away status automatically" autoaway)
1798 (const :tag "autojoin: Join channels automatically" autojoin)
1799 (const :tag "button: Buttonize URLs, nicknames, and other text" button)
1800 (const :tag "capab: Mark unidentified users on servers supporting CAPAB"
1801 capab-identify)
1802 (const :tag "completion: Complete nicknames and commands (programmable)"
1803 completion)
1804 (const :tag "hecomplete: Complete nicknames and commands (obsolete, use \"completion\")" hecomplete)
1805 (const :tag "dcc: Provide Direct Client-to-Client support" dcc)
1806 (const :tag "fill: Wrap long lines" fill)
1807 (const :tag "identd: Launch an identd server on port 8113" identd)
1808 (const :tag "irccontrols: Highlight or remove IRC control characters"
1809 irccontrols)
1810 (const :tag "keep-place: Leave point above un-viewed text" keep-place)
1811 (const :tag "list: List channels in a separate buffer" list)
1812 (const :tag "log: Save buffers in logs" log)
1813 (const :tag "match: Highlight pals, fools, and other keywords" match)
1814 (const :tag "menu: Display a menu in ERC buffers" menu)
1815 (const :tag "move-to-prompt: Move to the prompt when typing text"
1816 move-to-prompt)
1817 (const :tag "netsplit: Detect netsplits" netsplit)
1818 (const :tag "networks: Provide data about IRC networks" networks)
1819 (const :tag "noncommands: Don't display non-IRC commands after evaluation"
1820 noncommands)
1821 (const :tag
1822 "notify: Notify when the online status of certain users changes"
1823 notify)
1824 (const :tag "notifications: Send notifications on PRIVMSG or nickname mentions"
1825 notifications)
1826 (const :tag "page: Process CTCP PAGE requests from IRC" page)
1827 (const :tag "readonly: Make displayed lines read-only" readonly)
1828 (const :tag "replace: Replace text in messages" replace)
1829 (const :tag "ring: Enable an input history" ring)
1830 (const :tag "scrolltobottom: Scroll to the bottom of the buffer"
1831 scrolltobottom)
1832 (const :tag "services: Identify to Nickserv (IRC Services) automatically"
1833 services)
1834 (const :tag "smiley: Convert smileys to pretty icons" smiley)
1835 (const :tag "sound: Play sounds when you receive CTCP SOUND requests"
1836 sound)
1837 (const :tag "stamp: Add timestamps to messages" stamp)
1838 (const :tag "spelling: Check spelling" spelling)
1839 (const :tag "track: Track channel activity in the mode-line" track)
1840 (const :tag "truncate: Truncate buffers to a certain size" truncate)
1841 (const :tag "unmorse: Translate morse code in messages" unmorse)
1842 (const :tag "xdcc: Act as an XDCC file-server" xdcc)
1843 (repeat :tag "Others" :inline t symbol))
1844 :group 'erc)
1846 (defun erc-update-modules ()
1847 "Run this to enable erc-foo-mode for all modules in `erc-modules'."
1848 (let (req)
1849 (dolist (mod erc-modules)
1850 (setq req (concat "erc-" (symbol-name mod)))
1851 (cond
1852 ;; yuck. perhaps we should bring the filenames into sync?
1853 ((string= req "erc-capab-identify")
1854 (setq req "erc-capab"))
1855 ((string= req "erc-completion")
1856 (setq req "erc-pcomplete"))
1857 ((string= req "erc-pcomplete")
1858 (setq mod 'completion))
1859 ((string= req "erc-autojoin")
1860 (setq req "erc-join")))
1861 (condition-case nil
1862 (require (intern req))
1863 (error nil))
1864 (let ((sym (intern-soft (concat "erc-" (symbol-name mod) "-mode"))))
1865 (if (fboundp sym)
1866 (funcall sym 1)
1867 (error "`%s' is not a known ERC module" mod))))))
1869 (defun erc-setup-buffer (buffer)
1870 "Consults `erc-join-buffer' to find out how to display `BUFFER'."
1871 (pcase erc-join-buffer
1872 (`window
1873 (if (active-minibuffer-window)
1874 (display-buffer buffer)
1875 (switch-to-buffer-other-window buffer)))
1876 (`window-noselect
1877 (display-buffer buffer))
1878 (`bury
1879 nil)
1880 (`frame
1881 (when (or (not erc-reuse-frames)
1882 (not (get-buffer-window buffer t)))
1883 (let ((frame (make-frame (or erc-frame-alist
1884 default-frame-alist))))
1885 (raise-frame frame)
1886 (select-frame frame))
1887 (switch-to-buffer buffer)
1888 (when erc-frame-dedicated-flag
1889 (set-window-dedicated-p (selected-window) t))))
1890 (_
1891 (if (active-minibuffer-window)
1892 (display-buffer buffer)
1893 (switch-to-buffer buffer)))))
1895 (defun erc-open (&optional server port nick full-name
1896 connect passwd tgt-list channel process)
1897 "Connect to SERVER on PORT as NICK with FULL-NAME.
1899 If CONNECT is non-nil, connect to the server. Otherwise assume
1900 already connected and just create a separate buffer for the new
1901 target CHANNEL.
1903 Use PASSWD as user password on the server. If TGT-LIST is
1904 non-nil, use it to initialize `erc-default-recipients'.
1906 Returns the buffer for the given server or channel."
1907 (let ((server-announced-name (when (and (boundp 'erc-session-server)
1908 (string= server erc-session-server))
1909 erc-server-announced-name))
1910 (connected-p (unless connect erc-server-connected))
1911 (buffer (erc-get-buffer-create server port channel))
1912 (old-buffer (current-buffer))
1913 old-point
1914 continued-session)
1915 (when connect (run-hook-with-args 'erc-before-connect server port nick))
1916 (erc-update-modules)
1917 (set-buffer buffer)
1918 (setq old-point (point))
1919 (erc-mode)
1920 (setq erc-server-announced-name server-announced-name)
1921 (setq erc-server-connected connected-p)
1922 ;; connection parameters
1923 (setq erc-server-process process)
1924 (setq erc-insert-marker (make-marker))
1925 (setq erc-input-marker (make-marker))
1926 ;; go to the end of the buffer and open a new line
1927 ;; (the buffer may have existed)
1928 (goto-char (point-max))
1929 (forward-line 0)
1930 (when (get-text-property (point) 'erc-prompt)
1931 (setq continued-session t)
1932 (set-marker erc-input-marker
1933 (or (next-single-property-change (point) 'erc-prompt)
1934 (point-max))))
1935 (unless continued-session
1936 (goto-char (point-max))
1938 (set-marker erc-insert-marker (point))
1939 ;; stack of default recipients
1940 (setq erc-default-recipients tgt-list)
1941 (setq erc-server-current-nick nil)
1942 ;; Initialize erc-server-users and erc-channel-users
1943 (if connect
1944 (progn ;; server buffer
1945 (setq erc-server-users
1946 (make-hash-table :test 'equal))
1947 (setq erc-channel-users nil))
1948 (progn ;; target buffer
1949 (setq erc-server-users nil)
1950 (setq erc-channel-users
1951 (make-hash-table :test 'equal))))
1952 ;; clear last incomplete line read
1953 (setq erc-server-filter-data nil)
1954 (setq erc-channel-topic "")
1955 ;; limit on the number of users on the channel (mode +l)
1956 (setq erc-channel-user-limit nil)
1957 (setq erc-channel-key nil)
1958 ;; last active buffer, defaults to this one
1959 (erc-set-active-buffer buffer)
1960 ;; last invitation channel
1961 (setq erc-invitation nil)
1962 ;; Server channel list
1963 (setq erc-channel-list ())
1964 ;; login-time 'nick in use' error
1965 (setq erc-bad-nick nil)
1966 ;; whether we have logged in
1967 (setq erc-logged-in nil)
1968 ;; The local copy of `erc-nick' - the list of nicks to choose
1969 (setq erc-default-nicks (if (consp erc-nick) erc-nick (list erc-nick)))
1970 ;; password stuff
1971 (setq erc-session-password
1972 (or passwd
1973 (let ((secret
1974 (plist-get
1975 (nth 0
1976 (auth-source-search :host server
1977 :max 1
1978 :user nick
1979 :port port
1980 :require '(:secret)))
1981 :secret)))
1982 (if (functionp secret)
1983 (funcall secret)
1984 secret))))
1985 ;; debug output buffer
1986 (setq erc-dbuf
1987 (when erc-log-p
1988 (get-buffer-create (concat "*ERC-DEBUG: " server "*"))))
1989 ;; set up prompt
1990 (unless continued-session
1991 (goto-char (point-max))
1993 (if continued-session
1994 (goto-char old-point)
1995 (set-marker erc-insert-marker (point))
1996 (erc-display-prompt)
1997 (goto-char (point-max)))
1999 (erc-determine-parameters server port nick full-name)
2001 ;; Saving log file on exit
2002 (run-hook-with-args 'erc-connect-pre-hook buffer)
2004 (when connect
2005 (erc-server-connect erc-session-server erc-session-port buffer))
2006 (erc-update-mode-line)
2008 ;; Now display the buffer in a window as per user wishes.
2009 (unless (eq buffer old-buffer)
2010 (when erc-log-p
2011 ;; we can't log to debug buffer, it may not exist yet
2012 (message "erc: old buffer %s, switching to %s"
2013 old-buffer buffer))
2014 (erc-setup-buffer buffer))
2016 buffer))
2018 (defun erc-initialize-log-marker (buffer)
2019 "Initialize the `erc-last-saved-position' marker to a sensible position.
2020 BUFFER is the current buffer."
2021 (with-current-buffer buffer
2022 (setq erc-last-saved-position (make-marker))
2023 (move-marker erc-last-saved-position
2024 (1- (marker-position erc-insert-marker)))))
2026 ;; interactive startup
2028 (defvar erc-server-history-list nil
2029 "IRC server interactive selection history list.")
2031 (defvar erc-nick-history-list nil
2032 "Nickname interactive selection history list.")
2034 (defun erc-already-logged-in (server port nick)
2035 "Return the buffers corresponding to a NICK on PORT of a session SERVER.
2036 This is determined by looking for the appropriate buffer and checking
2037 whether the connection is still alive.
2038 If no buffer matches, return nil."
2039 (erc-buffer-list
2040 (lambda ()
2041 (and (erc-server-process-alive)
2042 (string= erc-session-server server)
2043 (erc-port-equal erc-session-port port)
2044 (erc-current-nick-p nick)))))
2046 (defcustom erc-before-connect nil
2047 "Hook called before connecting to a server.
2048 This hook gets executed before `erc' actually invokes `erc-mode'
2049 with your input data. The functions in here get called with three
2050 parameters, SERVER, PORT and NICK."
2051 :group 'erc-hooks
2052 :type 'hook)
2054 (defcustom erc-after-connect nil
2055 "Hook called after connecting to a server.
2056 This hook gets executed when an end of MOTD has been received. All
2057 functions in here get called with the parameters SERVER and NICK."
2058 :group 'erc-hooks
2059 :type 'hook)
2061 ;;;###autoload
2062 (defun erc-select-read-args ()
2063 "Prompt the user for values of nick, server, port, and password."
2064 (let (user-input server port nick passwd)
2065 (setq user-input (read-from-minibuffer
2066 "IRC server: "
2067 (erc-compute-server) nil nil 'erc-server-history-list))
2070 (setq port (erc-string-to-port (match-string 2 user-input))
2071 user-input (match-string 1 user-input))
2072 (setq port
2073 (erc-string-to-port (read-from-minibuffer
2074 "IRC port: " (erc-port-to-string
2075 (erc-compute-port))))))
2078 (setq nick (match-string 1 user-input)
2079 user-input (match-string 2 user-input))
2080 (setq nick
2081 (if (erc-already-logged-in server port nick)
2082 (read-from-minibuffer
2083 (erc-format-message 'nick-in-use ?n nick)
2084 nick
2085 nil nil 'erc-nick-history-list)
2086 (read-from-minibuffer
2087 "Nickname: " (erc-compute-nick nick)
2088 nil nil 'erc-nick-history-list))))
2090 (setq server user-input)
2092 (setq passwd (if erc-prompt-for-password
2093 (if (and erc-password
2094 (y-or-n-p "Use the default password? "))
2095 erc-password
2096 (read-passwd "Password: "))
2097 erc-password))
2098 (when (and passwd (string= "" passwd))
2099 (setq passwd nil))
2101 (while (erc-already-logged-in server port nick)
2102 ;; hmm, this is a problem when using multiple connections to a bnc
2103 ;; with the same nick. Currently this code prevents using more than one
2104 ;; bnc with the same nick. actually it would be nice to have
2105 ;; bncs transparent, so that erc-compute-buffer-name displays
2106 ;; the server one is connected to.
2107 (setq nick (read-from-minibuffer
2108 (erc-format-message 'nick-in-use ?n nick)
2109 nick
2110 nil nil 'erc-nick-history-list)))
2111 (list :server server :port port :nick nick :password passwd)))
2113 ;;;###autoload
2114 (cl-defun erc (&key (server (erc-compute-server))
2115 (port (erc-compute-port))
2116 (nick (erc-compute-nick))
2117 password
2118 (full-name (erc-compute-full-name)))
2119 "ERC is a powerful, modular, and extensible IRC client.
2120 This function is the main entry point for ERC.
2122 It permits you to select connection parameters, and then starts ERC.
2124 Non-interactively, it takes the keyword arguments
2125 (server (erc-compute-server))
2126 (port (erc-compute-port))
2127 (nick (erc-compute-nick))
2128 password
2129 (full-name (erc-compute-full-name)))
2131 That is, if called with
2135 then the server and full-name will be set to those values, whereas
2136 `erc-compute-port', `erc-compute-nick' and `erc-compute-full-name' will
2137 be invoked for the values of the other parameters."
2138 (interactive (erc-select-read-args))
2139 (erc-open server port nick full-name t password))
2141 ;;;###autoload
2142 (defalias 'erc-select 'erc)
2143 (defalias 'erc-ssl 'erc-tls)
2145 ;;;###autoload
2146 (defun erc-tls (&rest r)
2147 "Interactively select TLS connection parameters and run ERC.
2148 Arguments are the same as for `erc'."
2149 (interactive (erc-select-read-args))
2150 (let ((erc-server-connect-function 'erc-open-tls-stream))
2151 (apply 'erc r)))
2153 (defun erc-open-tls-stream (name buffer host port)
2154 "Open an TLS stream to an IRC server.
2155 The process will be given the name NAME, its target buffer will be
2156 BUFFER. HOST and PORT specify the connection target."
2157 (open-network-stream name buffer host port
2158 :type 'tls))
2160 ;;; Displaying error messages
2162 (defun erc-error (&rest args)
2163 "Pass ARGS to `format', and display the result as an error message.
2164 If `debug-on-error' is set to non-nil, then throw a real error with this
2165 message instead, to make debugging easier."
2166 (if debug-on-error
2167 (apply #'error args)
2168 (apply #'message args)
2169 (beep)))
2171 ;;; Debugging the protocol
2173 (defvar erc-debug-irc-protocol nil
2176 The buffer is created if it doesn't exist.
2178 NOTE: If this variable is non-nil, and you kill the only
2180 but you won't see it.
2182 WARNING: Do not set this variable directly! Instead, use the
2183 function `erc-toggle-debug-irc-protocol' to toggle its value.")
2185 (declare-function erc-network-name "erc-networks" ())
2187 (defun erc-log-irc-protocol (string &optional outbound)
2188 "Append STRING to the buffer *erc-protocol*.
2190 This only has any effect if `erc-debug-irc-protocol' is non-nil.
2192 The buffer is created if it doesn't exist.
2194 If OUTBOUND is non-nil, STRING is being sent to the IRC server
2195 and appears in face `erc-input-face' in the buffer."
2196 (when erc-debug-irc-protocol
2197 (let ((network-name (or (ignore-errors (erc-network-name))
2198 "???")))
2199 (with-current-buffer (get-buffer-create "*erc-protocol*")
2200 (save-excursion
2201 (goto-char (point-max))
2202 (let ((inhibit-read-only t))
2203 (insert (if (not outbound)
2204 ;; Cope with the fact that string might
2205 ;; contain multiple lines of text.
2206 (let ((lines (delete "" (split-string string
2208 (result ""))
2209 (dolist (line lines)
2210 (setq result (concat result network-name
2212 result)
2213 (erc-propertize
2214 (concat network-name " >> " string
2216 (aref string
2217 (1- (length string))))
2219 'face 'erc-input-face)))))
2220 (let ((orig-win (selected-window))
2221 (debug-buffer-window (get-buffer-window (current-buffer) t)))
2222 (when debug-buffer-window
2223 (select-window debug-buffer-window)
2224 (when (= 1 (count-lines (point) (point-max)))
2225 (goto-char (point-max))
2226 (recenter -1))
2227 (select-window orig-win)))))))
2229 (defun erc-toggle-debug-irc-protocol (&optional arg)
2230 "Toggle the value of `erc-debug-irc-protocol'.
2232 If ARG is non-nil, show the *erc-protocol* buffer."
2233 (interactive "P")
2234 (let* ((buf (get-buffer-create "*erc-protocol*")))
2235 (with-current-buffer buf
2236 (erc-view-mode-enter)
2237 (when (null (current-local-map))
2238 (let ((inhibit-read-only t))
2239 (insert (erc-make-notice "This buffer displays all IRC protocol traffic exchanged with each server.\n"))
2241 (use-local-map (make-sparse-keymap))
2242 (local-set-key (kbd "t") 'erc-toggle-debug-irc-protocol))
2243 (add-hook 'kill-buffer-hook
2244 #'(lambda () (setq erc-debug-irc-protocol nil))
2245 nil 'local)
2246 (goto-char (point-max))
2247 (let ((inhibit-read-only t))
2248 (insert (erc-make-notice
2250 (if erc-debug-irc-protocol "disabled" "enabled")
2251 (current-time-string))))))
2252 (setq erc-debug-irc-protocol (not erc-debug-irc-protocol))
2253 (if (and arg
2254 (not (get-buffer-window "*erc-protocol*" t)))
2255 (display-buffer buf t))
2256 (message "IRC protocol traffic logging %s (see buffer *erc-protocol*)."
2257 (if erc-debug-irc-protocol "enabled" "disabled"))))
2259 ;;; I/O interface
2261 ;; send interface
2263 (defun erc-send-action (tgt str &optional force)
2264 "Send CTCP ACTION information described by STR to TGT."
2265 (erc-send-ctcp-message tgt (format "ACTION %s" str) force)
2266 (erc-display-message
2267 nil 'input (current-buffer)
2268 'ACTION ?n (erc-current-nick) ?a str ?u "" ?h ""))
2270 ;; Display interface
2272 (defun erc-string-invisible-p (string)
2273 "Check whether STRING is invisible or not.
2274 I.e. any char in it has the `invisible' property set."
2275 (text-property-any 0 (length string) 'invisible t string))
2277 (defcustom erc-remove-parsed-property t
2278 "Whether to remove the erc-parsed text property after displaying a message.
2280 The default is to remove it, since it causes ERC to take up extra
2281 memory. If you have code that relies on this property, then set
2282 this option to nil."
2283 :type 'boolean
2284 :group 'erc)
2286 (defun erc-display-line-1 (string buffer)
2287 "Display STRING in `erc-mode' BUFFER.
2288 Auxiliary function used in `erc-display-line'. The line gets filtered to
2289 interpret the control characters. Then, `erc-insert-pre-hook' gets called.
2290 If `erc-insert-this' is still t, STRING gets inserted into the buffer.
2291 Afterwards, `erc-insert-modify' and `erc-insert-post-hook' get called.
2292 If STRING is nil, the function does nothing."
2293 (when string
2294 (with-current-buffer (or buffer (process-buffer erc-server-process))
2295 (let ((insert-position (or (marker-position erc-insert-marker)
2296 (point-max))))
2297 (let ((string string) ;; FIXME! Can this be removed?
2298 (buffer-undo-list t)
2299 (inhibit-read-only t))
2302 (when (erc-string-invisible-p string)
2303 (erc-put-text-properties 0 (length string)
2304 '(invisible intangible) string)))
2305 (erc-log (concat "erc-display-line: " string
2306 (format "(%S)" string) " in buffer "
2307 (format "%s" buffer)))
2308 (setq erc-insert-this t)
2309 (run-hook-with-args 'erc-insert-pre-hook string)
2310 (if (null erc-insert-this)
2311 ;; Leave erc-insert-this set to t as much as possible. Fran
2312 ;; Litterio <franl> has seen erc-insert-this set to nil while
2313 ;; erc-send-pre-hook is running, which should never happen. This
2314 ;; may cure it.
2315 (setq erc-insert-this t)
2316 (save-excursion ;; to restore point in the new buffer
2317 (save-restriction
2318 (widen)
2319 (goto-char insert-position)
2320 (insert-before-markers string)
2321 ;; run insertion hook, with point at restored location
2322 (save-restriction
2323 (narrow-to-region insert-position (point))
2324 (run-hooks 'erc-insert-modify-hook)
2325 (run-hooks 'erc-insert-post-hook)
2326 (when erc-remove-parsed-property
2327 (remove-text-properties (point-min) (point-max)
2328 '(erc-parsed nil))))))))
2329 (erc-update-undo-list (- (or (marker-position erc-insert-marker)
2330 (point-max))
2331 insert-position))))))
2333 (defun erc-update-undo-list (shift)
2334 ;; Translate buffer positions in buffer-undo-list by SHIFT.
2335 (unless (or (zerop shift) (atom buffer-undo-list))
2336 (let ((list buffer-undo-list) elt)
2337 (while list
2338 (setq elt (car list))
2339 (cond ((integerp elt) ; POSITION
2340 (cl-incf (car list) shift))
2341 ((or (atom elt) ; nil, EXTENT
2342 ;; (eq t (car elt)) ; (t . TIME)
2343 (markerp (car elt))) ; (MARKER . DISTANCE)
2344 nil)
2345 ((integerp (car elt)) ; (BEGIN . END)
2346 (cl-incf (car elt) shift)
2347 (cl-incf (cdr elt) shift))
2348 ((stringp (car elt)) ; (TEXT . POSITION)
2349 (cl-incf (cdr elt) (* (if (natnump (cdr elt)) 1 -1) shift)))
2350 ((null (car elt)) ; (nil PROPERTY VALUE BEG . END)
2351 (let ((cons (nthcdr 3 elt)))
2352 (cl-incf (car cons) shift)
2353 (cl-incf (cdr cons) shift)))
2354 ((and (featurep 'xemacs)
2355 (extentp (car elt))) ; (EXTENT START END)
2356 (cl-incf (nth 1 elt) shift)
2357 (cl-incf (nth 2 elt) shift)))
2358 (setq list (cdr list))))))
2361 "Regexp which matches all valid characters in a IRC nickname.")
2363 (defun erc-is-valid-nick-p (nick)
2364 "Check if NICK is a valid IRC nickname."
2365 (string-match (concat "^" erc-valid-nick-regexp "$") nick))
2367 (defun erc-display-line (string &optional buffer)
2368 "Display STRING in the ERC BUFFER.
2369 All screen output must be done through this function. If BUFFER is nil
2370 or omitted, the default ERC buffer for the `erc-session-server' is used.
2371 The BUFFER can be an actual buffer, a list of buffers, 'all or 'active.
2372 If BUFFER = 'all, the string is displayed in all the ERC buffers for the
2373 current session. 'active means the current active buffer
2374 \(`erc-active-buffer'). If the buffer can't be resolved, the current
2375 buffer is used. `erc-display-line-1' is used to display STRING.
2377 If STRING is nil, the function does nothing."
2378 (let ((inhibit-point-motion-hooks t)
2379 new-bufs)
2380 (dolist (buf (cond
2381 ((bufferp buffer) (list buffer))
2382 ((listp buffer) buffer)
2383 ((processp buffer) (list (process-buffer buffer)))
2384 ((eq 'all buffer)
2385 ;; Hmm, or all of the same session server?
2386 (erc-buffer-list nil erc-server-process))
2387 ((and (eq 'active buffer) (erc-active-buffer))
2388 (list (erc-active-buffer)))
2389 ((erc-server-buffer-live-p)
2390 (list (process-buffer erc-server-process)))
2391 (t (list (current-buffer)))))
2392 (when (buffer-live-p buf)
2393 (erc-display-line-1 string buf)
2394 (push buf new-bufs)))
2395 (when (null new-bufs)
2396 (erc-display-line-1 string (if (erc-server-buffer-live-p)
2397 (process-buffer erc-server-process)
2398 (current-buffer))))))
2400 (defun erc-display-message-highlight (type string)
2401 "Highlight STRING according to TYPE, where erc-TYPE-face is an ERC face.
2403 See also `erc-make-notice'."
2404 (cond ((eq type 'notice)
2405 (erc-make-notice string))
2406 (t
2407 (erc-put-text-property
2408 0 (length string)
2409 'face (or (intern-soft
2410 (concat "erc-" (symbol-name type) "-face"))
2411 "erc-default-face")
2412 string)
2413 string)))
2415 (defvar erc-lurker-state nil
2416 "Track the time of the last PRIVMSG for each (server,nick) pair.
2418 This is implemented as a hash of hashes, where the outer key is
2419 the canonicalized server name (as returned by
2420 `erc-canonicalize-server-name') and the outer value is a hash
2421 table mapping nicks (as returned by `erc-lurker-maybe-trim') to
2422 the times of their most recently received PRIVMSG on any channel
2423 on the given server.")
2425 (defcustom erc-lurker-trim-nicks t
2426 "If t, trim trailing `erc-lurker-ignore-chars' from nicks.
2428 This causes e.g. nick and nick` to be considered as the same
2429 individual for activity tracking and lurkiness detection
2430 purposes."
2431 :group 'erc-lurker
2432 :type 'boolean)
2434 (defcustom erc-lurker-ignore-chars "`_"
2435 "Characters at the end of a nick to strip for activity tracking purposes.
2437 See also `erc-lurker-trim-nicks'."
2438 :group 'erc-lurker
2439 :type 'string)
2441 (defun erc-lurker-maybe-trim (nick)
2442 "Maybe trim trailing `erc-lurker-ignore-chars' from NICK.
2444 Returns NICK unmodified unless `erc-lurker-trim-nicks' is
2445 non-nil."
2446 (if erc-lurker-trim-nicks
2447 (replace-regexp-in-string
2448 (format "[%s]"
2449 (mapconcat (lambda (char)
2450 (regexp-quote (char-to-string char)))
2451 erc-lurker-ignore-chars ""))
2452 "" nick)
2453 nick))
2455 (defcustom erc-lurker-hide-list nil
2456 "List of IRC type messages to hide when sent by lurkers.
2459 See also `erc-lurker-p' and `erc-hide-list'."
2460 :group 'erc-lurker
2461 :type 'erc-message-type)
2463 (defcustom erc-lurker-threshold-time (* 60 60 24) ; 24h by default
2464 "Nicks from which no PRIVMSGs have been received within this
2465 interval (in units of seconds) are considered lurkers by
2466 `erc-lurker-p' and as a result their messages of types in
2467 `erc-lurker-hide-list' will be hidden."
2468 :group 'erc-lurker
2469 :type 'integer)
2471 (defun erc-lurker-initialize ()
2472 "Initialize ERC lurker tracking functionality.
2474 This function adds `erc-lurker-update-status' to
2475 `erc-insert-pre-hook' in order to record the time of each nick's
2476 most recent PRIVMSG as well as initializing the state variable
2477 storing this information."
2478 (setq erc-lurker-state (make-hash-table :test 'equal))
2479 (add-hook 'erc-insert-pre-hook 'erc-lurker-update-status))
2481 (defun erc-lurker-cleanup ()
2482 "Remove all last PRIVMSG state older than `erc-lurker-threshold-time'.
2484 This should be called regularly to avoid excessive resource
2485 consumption for long-lived IRC or Emacs sessions."
2486 (maphash
2487 (lambda (server hash)
2488 (maphash
2489 (lambda (nick last-PRIVMSG-time)
2490 (when
2491 (> (float-time (time-subtract
2492 (current-time)
2493 last-PRIVMSG-time))
2494 erc-lurker-threshold-time)
2495 (remhash nick hash)))
2496 hash)
2497 (if (zerop (hash-table-count hash))
2498 (remhash server erc-lurker-state)))
2499 erc-lurker-state))
2501 (defvar erc-lurker-cleanup-count 0
2502 "Internal counter variable for use with `erc-lurker-cleanup-interval'.")
2504 (defvar erc-lurker-cleanup-interval 100
2505 "Frequency of cleaning up stale erc-lurker state.
2507 `erc-lurker-update-status' calls `erc-lurker-cleanup' once for
2508 every `erc-lurker-cleanup-interval' updates to
2509 `erc-lurker-state'. This is designed to limit the memory
2510 consumption of lurker state during long Emacs sessions and/or ERC
2511 sessions with large numbers of incoming PRIVMSGs.")
2513 (defun erc-lurker-update-status (_message)
2514 "Update `erc-lurker-state' if necessary.
2516 This function is called from `erc-insert-pre-hook'. If the
2517 current message is a PRIVMSG, update `erc-lurker-state' to
2518 reflect the fact that its sender has issued a PRIVMSG at the
2519 current time. Otherwise, take no action.
2521 This function depends on the fact that `erc-display-message'
2522 dynamically binds `parsed', which is used to check if the current
2523 message is a PRIVMSG and to determine its sender. See also
2524 `erc-lurker-trim-nicks' and `erc-lurker-ignore-chars'.
2526 In order to limit memory consumption, this function also calls
2527 `erc-lurker-cleanup' once every `erc-lurker-cleanup-interval'
2528 updates of `erc-lurker-state'."
2529 (when (and (boundp 'parsed) (erc-response-p parsed))
2530 (let* ((command (erc-response.command parsed))
2531 (sender
2532 (erc-lurker-maybe-trim
2533 (car (erc-parse-user (erc-response.sender parsed)))))
2534 (server
2535 (erc-canonicalize-server-name erc-server-announced-name)))
2536 (when (equal command "PRIVMSG")
2537 (when (>= (cl-incf erc-lurker-cleanup-count)
2538 erc-lurker-cleanup-interval)
2539 (setq erc-lurker-cleanup-count 0)
2540 (erc-lurker-cleanup))
2541 (unless (gethash server erc-lurker-state)
2542 (puthash server (make-hash-table :test 'equal) erc-lurker-state))
2543 (puthash sender (current-time)
2544 (gethash server erc-lurker-state))))))
2546 (defun erc-lurker-p (nick)
2547 "Predicate indicating NICK's lurking status on the current server.
2549 Lurking is the condition where NICK has issued no PRIVMSG on this
2550 server within `erc-lurker-threshold-time'. See also
2551 `erc-lurker-trim-nicks' and `erc-lurker-ignore-chars'."
2552 (unless erc-lurker-state (erc-lurker-initialize))
2553 (let* ((server
2554 (erc-canonicalize-server-name erc-server-announced-name))
2555 (last-PRIVMSG-time
2556 (gethash (erc-lurker-maybe-trim nick)
2557 (gethash server erc-lurker-state (make-hash-table)))))
2558 (or (null last-PRIVMSG-time)
2559 (> (float-time
2560 (time-subtract (current-time) last-PRIVMSG-time))
2561 erc-lurker-threshold-time))))
2563 (defcustom erc-common-server-suffixes
2564 '(("openprojects.net$" . "OPN")
2565 ("freenode.net$" . "freenode")
2566 ("oftc.net$" . "OFTC"))
2567 "Alist of common server name suffixes.
2568 This variable is used in mode-line display to save screen
2569 real estate. Set it to nil if you want to avoid changing
2570 displayed hostnames."
2571 :group 'erc-mode-line-and-header
2572 :type 'alist)
2574 (defun erc-canonicalize-server-name (server)
2575 "Return the canonical network name for SERVER if any,
2576 otherwise `erc-server-announced-name'. SERVER is matched against
2577 `erc-common-server-suffixes'."
2578 (when server
2579 (or (cdar (erc-remove-if-not
2580 (lambda (net) (string-match (car net) server))
2581 erc-common-server-suffixes))
2582 erc-server-announced-name)))
2584 (defun erc-hide-current-message-p (parsed)
2585 "Predicate indicating whether the parsed ERC response PARSED should be hidden.
2587 Messages are always hidden if the message type of PARSED appears in
2588 `erc-hide-list'. In addition, messages whose type is a member of
2589 `erc-lurker-hide-list' are hidden if `erc-lurker-p' returns true."
2590 (let* ((command (erc-response.command parsed))
2591 (sender (car (erc-parse-user (erc-response.sender parsed)))))
2592 (or (member command erc-hide-list)
2593 (and (member command erc-lurker-hide-list) (erc-lurker-p sender)))))
2595 (defun erc-display-message (parsed type buffer msg &rest args)
2596 "Display MSG in BUFFER.
2598 ARGS, PARSED, and TYPE are used to format MSG sensibly.
2600 See also `erc-format-message' and `erc-display-line'."
2601 (let ((string (if (symbolp msg)
2602 (apply 'erc-format-message msg args)
2603 msg)))
2604 (setq string
2605 (cond
2606 ((null type)
2607 string)
2608 ((listp type)
2609 (mapc (lambda (type)
2610 (setq string
2611 (erc-display-message-highlight type string)))
2612 type)
2613 string)
2614 ((symbolp type)
2615 (erc-display-message-highlight type string))))
2617 (if (not (erc-response-p parsed))
2618 (erc-display-line string buffer)
2619 (unless (erc-hide-current-message-p parsed)
2620 (erc-put-text-property 0 (length string) 'erc-parsed parsed string)
2621 (erc-put-text-property 0 (length string) 'rear-sticky t string)
2622 (erc-display-line string buffer)))))
2624 (defun erc-message-type-member (position list)
2625 "Return non-nil if the erc-parsed text-property at POSITION is in LIST.
2627 This function relies on the erc-parsed text-property being
2628 present."
2629 (let ((prop-val (erc-get-parsed-vector position)))
2630 (and prop-val (member (erc-response.command prop-val) list))))
2632 (defvar erc-send-input-line-function 'erc-send-input-line)
2633 (make-variable-buffer-local 'erc-send-input-line-function)
2635 (defun erc-send-input-line (target line &optional force)
2636 "Send LINE to TARGET.
2638 See also `erc-server-send'."
2639 (setq line (format "PRIVMSG %s :%s"
2640 target
2641 ;; If the line is empty, we still want to
2642 ;; send it - i.e. an empty pasted line.
2645 line)))
2646 (erc-server-send line force target))
2648 (defun erc-get-arglist (fun)
2649 "Return the argument list of a function without the parens."
2650 (let ((arglist (format "%S" (erc-function-arglist fun))))
2652 (match-string 1 arglist)
2653 arglist)))
2655 (defun erc-command-no-process-p (str)
2656 "Return non-nil if STR is an ERC command that can be run when the process
2657 is not alive, nil otherwise."
2658 (let ((fun (erc-extract-command-from-line str)))
2659 (and fun
2660 (symbolp (car fun))
2661 (get (car fun) 'process-not-needed))))
2663 (defun erc-command-name (cmd)
2664 "For CMD being the function name of a ERC command, something like
2665 erc-cmd-FOO, this returns a string /FOO."
2666 (let ((command-name (symbol-name cmd)))
2668 (concat "/" (match-string 1 command-name))
2669 command-name)))
2671 (defun erc-process-input-line (line &optional force no-command)
2672 "Translate LINE to an RFC1459 command and send it based.
2673 Returns non-nil if the command is actually sent to the server, and nil
2674 otherwise.
2676 If the command in the LINE is not bound as a function `erc-cmd-<COMMAND>',
2677 it is passed to `erc-cmd-default'. If LINE is not a command (i.e. doesn't
2678 start with /<COMMAND>) then it is sent as a message.
2680 An optional FORCE argument forces sending the line when flood
2681 protection is in effect. The optional NO-COMMAND argument prohibits
2682 this function from interpreting the line as a command."
2683 (let ((command-list (erc-extract-command-from-line line)))
2684 (if (and command-list
2685 (not no-command))
2686 (let* ((cmd (nth 0 command-list))
2687 (args (nth 1 command-list)))
2688 (condition-case nil
2689 (if (listp args)
2690 (apply cmd args)
2691 (funcall cmd args))
2692 (wrong-number-of-arguments
2693 (erc-display-message nil 'error (current-buffer) 'incorrect-args
2694 ?c (erc-command-name cmd)
2695 ?u (or (erc-get-arglist cmd)
2696 "")
2698 (or (documentation cmd) "")))
2699 nil)))
2700 (let ((r (erc-default-target)))
2701 (if r
2702 (funcall erc-send-input-line-function r line force)
2703 (erc-display-message nil 'error (current-buffer) 'no-target)
2704 nil)))))
2706 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2707 ;; Input commands handlers
2708 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2710 (defun erc-cmd-AMSG (line)
2711 "Send LINE to all channels of the current server that you are on."
2712 (interactive "sSend to all channels you're on: ")
2713 (setq line (erc-trim-string line))
2714 (erc-with-all-buffers-of-server nil
2715 (lambda ()
2716 (erc-channel-p (erc-default-target)))
2717 (erc-send-message line)))
2718 (put 'erc-cmd-AMSG 'do-not-parse-args t)
2720 (defun erc-cmd-SAY (line)
2721 "Send LINE to the current query or channel as a message, not a command.
2723 Use this when you want to send a message with a leading '/'. Note
2724 that since multi-line messages are never a command, you don't
2725 need this when pasting multiple lines of text."
2727 nil
2729 (erc-process-input-line (match-string 1 line) nil t)))
2730 (put 'erc-cmd-SAY 'do-not-parse-args t)
2732 (defun erc-cmd-SET (line)
2733 "Set the variable named by the first word in LINE to some VALUE.
2734 VALUE is computed by evaluating the rest of LINE in Lisp."
2735 (cond
2737 (let ((var (read (concat "erc-" (match-string 1 line))))
2738 (val (read (match-string 2 line))))
2739 (if (boundp var)
2740 (progn
2741 (set var (eval val))
2742 (erc-display-message
2743 nil nil 'active (format "Set %S to %S" var val))
2744 t)
2745 (setq var (read (match-string 1 line)))
2746 (if (boundp var)
2747 (progn
2748 (set var (eval val))
2749 (erc-display-message
2750 nil nil 'active (format "Set %S to %S" var val))
2751 t)
2752 (erc-display-message nil 'error 'active 'variable-not-bound)
2753 nil))))
2755 (erc-display-line
2757 (apply
2758 'concat
2759 (mapcar
2760 (lambda (var)
2761 (let ((val (symbol-value var)))
2762 (concat (format "%S:" var)
2763 (if (consp val)
2766 (apropos-internal "^erc-" 'custom-variable-p))))
2767 (current-buffer)) t)
2768 (t nil)))
2769 (defalias 'erc-cmd-VAR 'erc-cmd-SET)
2770 (defalias 'erc-cmd-VARIABLE 'erc-cmd-SET)
2771 (put 'erc-cmd-SET 'do-not-parse-args t)
2772 (put 'erc-cmd-SET 'process-not-needed t)
2774 (defun erc-cmd-default (line)
2775 "Fallback command.
2777 Commands for which no erc-cmd-xxx exists, are tunneled through
2778 this function. LINE is sent to the server verbatim, and
2779 therefore has to contain the command itself as well."
2780 (erc-log (format "cmd: DEFAULT: %s" line))
2781 (erc-server-send (substring line 1))
2782 t)
2784 (defun erc-cmd-IGNORE (&optional user)
2785 "Ignore USER. This should be a regexp matching nick!user@host.
2786 If no USER argument is specified, list the contents of `erc-ignore-list'."
2787 (if user
2788 (let ((quoted (regexp-quote user)))
2789 (when (and (not (string= user quoted))
2790 (y-or-n-p (format "Use regexp-quoted form (%s) instead? "
2791 quoted)))
2792 (setq user quoted))
2793 (erc-display-line
2794 (erc-make-notice (format "Now ignoring %s" user))
2795 'active)
2796 (erc-with-server-buffer (add-to-list 'erc-ignore-list user)))
2797 (if (null (erc-with-server-buffer erc-ignore-list))
2798 (erc-display-line (erc-make-notice "Ignore list is empty") 'active)
2799 (erc-display-line (erc-make-notice "Ignore list:") 'active)
2800 (mapc #'(lambda (item)
2801 (erc-display-line (erc-make-notice item)
2802 'active))
2803 (erc-with-server-buffer erc-ignore-list))))
2804 t)
2806 (defun erc-cmd-UNIGNORE (user)
2807 "Remove the user specified in USER from the ignore list."
2808 (let ((ignored-nick (car (erc-with-server-buffer
2809 (erc-member-ignore-case (regexp-quote user)
2810 erc-ignore-list)))))
2811 (unless ignored-nick
2812 (if (setq ignored-nick (erc-ignored-user-p user))
2813 (unless (y-or-n-p (format "Remove this regexp (%s)? "
2814 ignored-nick))
2815 (setq ignored-nick nil))
2816 (erc-display-line
2817 (erc-make-notice (format "%s is not currently ignored!" user))
2818 'active)))
2819 (when ignored-nick
2820 (erc-display-line
2821 (erc-make-notice (format "No longer ignoring %s" user))
2822 'active)
2823 (erc-with-server-buffer
2824 (setq erc-ignore-list (delete ignored-nick erc-ignore-list)))))
2825 t)
2827 (defun erc-cmd-CLEAR ()
2828 "Clear the window content."
2829 (recenter 0)
2830 t)
2831 (put 'erc-cmd-CLEAR 'process-not-needed t)
2833 (defun erc-cmd-OPS ()
2834 "Show the ops in the current channel."
2835 (interactive)
2836 (let ((ops nil))
2837 (if erc-channel-users
2838 (maphash (lambda (_nick user-data)
2839 (let ((cuser (cdr user-data)))
2840 (if (and cuser
2841 (erc-channel-user-op cuser))
2842 (setq ops (cons (erc-server-user-nickname
2843 (car user-data))
2844 ops)))))
2845 erc-channel-users))
2846 (setq ops (sort ops 'string-lessp))
2847 (if ops
2848 (erc-display-message
2849 nil 'notice (current-buffer) 'ops
2850 ?i (length ops) ?s (if (> (length ops) 1) "s" "")
2851 ?o (mapconcat 'identity ops " "))
2852 (erc-display-message nil 'notice (current-buffer) 'ops-none)))
2853 t)
2855 (defun erc-cmd-COUNTRY (tld)
2856 "Display the country associated with the top level domain TLD."
2857 (require 'mail-extr)
2858 (let ((co (ignore-errors (what-domain tld))))
2859 (if co
2860 (erc-display-message
2861 nil 'notice 'active 'country ?c co ?d tld)
2862 (erc-display-message
2863 nil 'notice 'active 'country-unknown ?d tld))
2864 t))
2865 (put 'erc-cmd-COUNTRY 'process-not-needed t)
2867 (defun erc-cmd-AWAY (line)
2868 "Mark the user as being away, the reason being indicated by LINE.
2869 If no reason is given, unset away status."
2871 (let ((reason (match-string 1 line)))
2872 (erc-log (format "cmd: AWAY: %s" reason))
2873 (erc-server-send
2874 (if (string= reason "")
2875 "AWAY"
2876 (concat "AWAY :" reason))))
2877 t))
2878 (put 'erc-cmd-AWAY 'do-not-parse-args t)
2880 (defun erc-cmd-GAWAY (line)
2881 "Mark the user as being away everywhere, the reason being indicated by LINE."
2882 ;; on all server buffers.
2883 (erc-with-all-buffers-of-server nil
2884 #'erc-open-server-buffer-p
2885 (erc-cmd-AWAY line)))
2886 (put 'erc-cmd-GAWAY 'do-not-parse-args t)
2888 (defun erc-cmd-CTCP (nick cmd &rest args)
2889 "Send a Client To Client Protocol message to NICK.
2891 CMD is the CTCP command, possible values being ECHO, FINGER, CLIENTINFO, TIME,
2892 VERSION and so on. It is called with ARGS."
2893 (let ((str (concat cmd
2894 (when args
2895 (concat " " (mapconcat #'identity args " "))))))
2896 (erc-log (format "cmd: CTCP [%s]: [%s]" nick str))
2897 (erc-send-ctcp-message nick str)
2898 t))
2900 (defun erc-cmd-HELP (&optional func)
2901 "Popup help information.
2903 If FUNC contains a valid function or variable, help about that
2904 will be displayed. If FUNC is empty, display an apropos about
2905 ERC commands. Otherwise, do `apropos' in the ERC namespace
2908 Examples:
2909 To find out about erc and bbdb, do
2910 /help bbdb.*
2912 For help about the WHOIS command, do:
2913 /help whois
2915 For a list of user commands (/join /part, ...):
2916 /help."
2917 (if func
2918 (let* ((sym (or (let ((sym (intern-soft
2919 (concat "erc-cmd-" (upcase func)))))
2920 (if (and sym (or (boundp sym) (fboundp sym)))
2921 sym
2922 nil))
2923 (let ((sym (intern-soft func)))
2924 (if (and sym (or (boundp sym) (fboundp sym)))
2925 sym
2926 nil))
2927 (let ((sym (intern-soft (concat "erc-" func))))
2928 (if (and sym (or (boundp sym) (fboundp sym)))
2929 sym
2930 nil)))))
2931 (if sym
2932 (cond
2933 ((boundp sym) (describe-variable sym))
2934 ((fboundp sym) (describe-function sym))
2935 (t nil))
2936 (apropos-command (concat "erc-.*" func) nil
2937 (lambda (x)
2938 (or (commandp x)
2939 (get x 'custom-type))))
2940 t))
2941 (apropos "erc-cmd-")
2942 (message "Type C-h m to get additional information about keybindings.")
2943 t))
2945 (defalias 'erc-cmd-H 'erc-cmd-HELP)
2946 (put 'erc-cmd-HELP 'process-not-needed t)
2948 (defun erc-cmd-JOIN (channel &optional key)
2949 "Join the channel given in CHANNEL, optionally with KEY.
2951 were most recently invited. See also `invitation'."
2952 (let (chnl)
2953 (if (string= (upcase channel) "-INVITE")
2954 (if erc-invitation
2955 (setq chnl erc-invitation)
2956 (erc-display-message nil 'error (current-buffer) 'no-invitation))
2957 (setq chnl (erc-ensure-channel-name channel)))
2958 (when chnl
2959 ;; Prevent double joining of same channel on same server.
2960 (let ((joined-channels
2961 (mapcar #'(lambda (chanbuf)
2962 (with-current-buffer chanbuf (erc-default-target)))
2963 (erc-channel-list erc-server-process))))
2964 (if (erc-member-ignore-case chnl joined-channels)
2965 (switch-to-buffer (car (erc-member-ignore-case chnl
2966 joined-channels)))
2967 (erc-log (format "cmd: JOIN: %s" chnl))
2968 (erc-server-send (if (and chnl key)
2969 (format "JOIN %s %s" chnl key)
2970 (format "JOIN %s" chnl)))))))
2971 t)
2973 (defalias 'erc-cmd-CHANNEL 'erc-cmd-JOIN)
2974 (defalias 'erc-cmd-J 'erc-cmd-JOIN)
2976 (defvar erc-channel-new-member-names nil
2977 "If non-nil, a names list is currently being received.
2979 If non-nil, this variable is a hash-table that associates
2980 received nicks with t.")
2981 (make-variable-buffer-local 'erc-channel-new-member-names)
2983 (defun erc-cmd-NAMES (&optional channel)
2984 "Display the users in CHANNEL.
2985 If CHANNEL is not specified, display the users in the current channel.
2986 This function clears the channel name list first, then sends the
2987 command."
2988 (let ((tgt (or (and (erc-channel-p channel) channel)
2989 (erc-default-target))))
2990 (if (and tgt (erc-channel-p tgt))
2991 (progn
2992 (erc-log (format "cmd: DEFAULT: NAMES %s" tgt))
2993 (erc-with-buffer
2994 (tgt)
2995 (erc-channel-begin-receiving-names))
2996 (erc-server-send (concat "NAMES " tgt)))
2997 (erc-display-message nil 'error (current-buffer) 'no-default-channel)))
2998 t)
2999 (defalias 'erc-cmd-N 'erc-cmd-NAMES)
3001 (defun erc-cmd-KICK (target &optional reason-or-nick &rest reasonwords)
3002 "Kick the user indicated in LINE from the current channel.
3004 (let ((reasonstring (mapconcat 'identity reasonwords " ")))
3005 (if (string= "" reasonstring)
3006 (setq reasonstring (format "Kicked by %s" (erc-current-nick))))
3007 (if (erc-channel-p target)
3008 (let ((nick reason-or-nick))
3009 (erc-log (format "cmd: KICK: %s/%s: %s" nick target reasonstring))
3010 (erc-server-send (format "KICK %s %s :%s" target nick reasonstring)
3011 nil target)
3012 t)
3013 (when target
3014 (let ((ch (erc-default-target)))
3015 (setq reasonstring (concat
3016 (if reason-or-nick (concat reason-or-nick " "))
3017 reasonstring))
3018 (if ch
3019 (progn
3020 (erc-log
3021 (format "cmd: KICK: %s/%s: %s" target ch reasonstring))
3022 (erc-server-send
3023 (format "KICK %s %s :%s" ch target reasonstring) nil ch))
3024 (erc-display-message nil 'error (current-buffer)
3025 'no-default-channel))
3026 t)))))
3028 (defvar erc-script-args nil)
3030 (defun erc-cmd-LOAD (line)
3031 "Load the script provided in the LINE.
3032 If LINE continues beyond the file name, the rest of
3033 it is put in a (local) variable `erc-script-args',
3034 which can be used in Emacs Lisp scripts.
3036 The optional FORCE argument is ignored here - you can't force loading
3037 a script after exceeding the flood threshold."
3038 (cond
3040 (let* ((file-to-find (match-string 1 line))
3041 (erc-script-args (match-string 2 line))
3042 (file (erc-find-file file-to-find erc-script-path)))
3043 (erc-log (format "cmd: LOAD: %s" file-to-find))
3044 (cond
3045 ((not file)
3046 (erc-display-message nil 'error (current-buffer)
3047 'cannot-find-file ?f file-to-find))
3048 ((not (file-readable-p file))
3049 (erc-display-message nil 'error (current-buffer)
3050 'cannot-read-file ?f file))
3051 (t
3053 (erc-load-script file)
3055 t)
3056 (t nil)))
3058 (defun erc-cmd-WHOIS (user &optional server)
3059 "Display whois information for USER.
3061 If SERVER is non-nil, use that, rather than the current server."
3062 ;; FIXME: is the above docstring correct? -- Lawrence 2004-01-08
3063 (let ((send (if server
3064 (format "WHOIS %s %s" user server)
3065 (format "WHOIS %s" user))))
3066 (erc-log (format "cmd: %s" send))
3067 (erc-server-send send)
3068 t))
3069 (defalias 'erc-cmd-WI 'erc-cmd-WHOIS)
3071 (defun erc-cmd-WHOAMI ()
3072 "Display whois information about yourself."
3073 (erc-cmd-WHOIS (erc-current-nick))
3074 t)
3076 (defun erc-cmd-IDLE (nick)
3077 "Show the length of time NICK has been idle."
3078 (let ((origbuf (current-buffer))
3079 symlist)
3080 (erc-with-server-buffer
3081 (push (cons (erc-once-with-server-event
3082 311 (lambda (_proc parsed)
3083 (string= nick
3084 (nth 1 (erc-response.command-args
3085 parsed)))))
3086 'erc-server-311-functions)
3087 symlist)
3088 (push (cons (erc-once-with-server-event
3089 312 (lambda (_proc parsed)
3090 (string= nick
3091 (nth 1 (erc-response.command-args
3092 parsed)))))
3093 'erc-server-312-functions)
3094 symlist)
3095 (push (cons (erc-once-with-server-event
3096 318 (lambda (_proc parsed)
3097 (string= nick
3098 (nth 1 (erc-response.command-args
3099 parsed)))))
3100 'erc-server-318-functions)
3101 symlist)
3102 (push (cons (erc-once-with-server-event
3103 319 (lambda (_proc parsed)
3104 (string= nick
3105 (nth 1 (erc-response.command-args
3106 parsed)))))
3107 'erc-server-319-functions)
3108 symlist)
3109 (push (cons (erc-once-with-server-event
3110 320 (lambda (_proc parsed)
3111 (string= nick
3112 (nth 1 (erc-response.command-args
3113 parsed)))))
3114 'erc-server-320-functions)
3115 symlist)
3116 (push (cons (erc-once-with-server-event
3117 330 (lambda (_proc parsed)
3118 (string= nick
3119 (nth 1 (erc-response.command-args
3120 parsed)))))
3121 'erc-server-330-functions)
3122 symlist)
3123 (push (cons (erc-once-with-server-event
3124 317
3125 (lambda (_proc parsed)
3126 (let ((idleseconds
3127 (string-to-number
3128 (cl-third
3129 (erc-response.command-args parsed)))))
3130 (erc-display-line
3131 (erc-make-notice
3132 (format "%s has been idle for %s."
3133 (erc-string-no-properties nick)
3134 (erc-seconds-to-string idleseconds)))
3135 origbuf)
3136 t)))
3137 'erc-server-317-functions)
3138 symlist)
3140 ;; Send the WHOIS command.
3141 (erc-cmd-WHOIS nick)
3143 ;; Remove the uninterned symbols from the server hooks that did not run.
3144 (run-at-time 20 nil (lambda (buf symlist)
3145 (with-current-buffer buf
3146 (dolist (sym symlist)
3147 (let ((hooksym (cdr sym))
3148 (funcsym (car sym)))
3149 (remove-hook hooksym funcsym t)))))
3150 (current-buffer) symlist)))
3151 t)
3153 (defun erc-cmd-DESCRIBE (line)
3154 "Pose some action to a certain user.
3156 (cond
3157 ((string-match
3159 (let ((dst (match-string 1 line))
3160 (s (match-string 2 line)))
3161 (erc-log (format "cmd: DESCRIBE: [%s] %s" dst s))
3162 (erc-send-action dst s))
3163 t)
3164 (t nil)))
3165 (put 'erc-cmd-DESCRIBE 'do-not-parse-args t)
3167 (defun erc-cmd-ME (line)
3168 "Send LINE as an action."
3169 (cond
3171 (let ((s (match-string 1 line)))
3172 (erc-log (format "cmd: ME: %s" s))
3173 (erc-send-action (erc-default-target) s))
3174 t)
3175 (t nil)))
3176 (put 'erc-cmd-ME 'do-not-parse-args t)
3180 (erc-cmd-ME (concat " 's" line)))
3183 (defun erc-cmd-LASTLOG (line)
3184 "Show all lines in the current buffer matching the regexp LINE.
3186 If a match spreads across multiple lines, all those lines are shown.
3188 The lines are shown in a buffer named `*Occur*'.
3189 It serves as a menu to find any of the occurrences in this buffer.
3193 the matching is case-sensitive."
3194 (occur line)
3195 t)
3196 (put 'erc-cmd-LASTLOG 'do-not-parse-args t)
3197 (put 'erc-cmd-LASTLOG 'process-not-needed t)
3199 (defun erc-send-message (line &optional force)
3200 "Send LINE to the current channel or user and display it.
3202 See also `erc-message' and `erc-display-line'."
3203 (erc-message "PRIVMSG" (concat (erc-default-target) " " line) force)
3204 (erc-display-line
3205 (concat (erc-format-my-nick) line)
3206 (current-buffer))
3207 ;; FIXME - treat multiline, run hooks, or remove me?
3208 t)
3210 (defun erc-cmd-MODE (line)
3211 "Change or display the mode value of a channel or user.
3212 The first word specifies the target. The rest is the mode string
3213 to send.
3215 If only one word is given, display the mode of that target.
3217 A list of valid mode strings for Freenode may be found at
3218 URL `http://freenode.net/using_the_network.shtml'."
3219 (cond
3221 (let ((s (match-string 1 line)))
3222 (erc-log (format "cmd: MODE: %s" s))
3223 (erc-server-send (concat "MODE " line)))
3224 t)
3225 (t nil)))
3226 (put 'erc-cmd-MODE 'do-not-parse-args t)
3228 (defun erc-cmd-NOTICE (channel-or-user &rest message)
3229 "Send a notice to the channel or user given as the first word.
3230 The rest is the message to send."
3231 (erc-message "NOTICE" (concat channel-or-user " "
3232 (mapconcat #'identity message " "))))
3234 (defun erc-cmd-MSG (line)
3235 "Send a message to the channel or user given as the first word in LINE.
3237 The rest of LINE is the message to send."
3238 (erc-message "PRIVMSG" line))
3240 (defalias 'erc-cmd-M 'erc-cmd-MSG)
3241 (put 'erc-cmd-MSG 'do-not-parse-args t)
3243 (defun erc-cmd-SQUERY (line)
3244 "Send a Service Query to the service given as the first word in LINE.
3246 The rest of LINE is the message to send."
3247 (erc-message "SQUERY" line))
3249 (defun erc-cmd-NICK (nick)
3250 "Change current nickname to NICK."
3251 (erc-log (format "cmd: NICK: %s (erc-bad-nick: %S)" nick erc-bad-nick))
3252 (let ((nicklen (cdr (assoc "NICKLEN" (erc-with-server-buffer
3253 erc-server-parameters)))))
3254 (and nicklen (> (length nick) (string-to-number nicklen))
3255 (erc-display-message
3256 nil 'notice 'active 'nick-too-long
3257 ?i (length nick) ?l nicklen)))
3258 (erc-server-send (format "NICK %s" nick))
3259 (cond (erc-bad-nick
3260 (erc-set-current-nick nick)
3261 (erc-update-mode-line)
3262 (setq erc-bad-nick nil)))
3263 t)
3265 (defun erc-cmd-PART (line)
3266 "When LINE is an empty string, leave the current channel.
3267 Otherwise leave the channel indicated by LINE."
3268 (cond
3270 (let* ((ch (match-string 1 line))
3271 (msg (match-string 2 line))
3272 (reason (funcall erc-part-reason (if (equal msg "") nil msg))))
3273 (erc-log (format "cmd: PART: %s: %s" ch reason))
3274 (erc-server-send (if (string= reason "")
3275 (format "PART %s" ch)
3276 (format "PART %s :%s" ch reason))
3277 nil ch))
3278 t)
3280 (let* ((ch (erc-default-target))
3281 (msg (match-string 1 line))
3282 (reason (funcall erc-part-reason (if (equal msg "") nil msg))))
3283 (if (and ch (erc-channel-p ch))
3284 (progn
3285 (erc-log (format "cmd: PART: %s: %s" ch reason))
3286 (erc-server-send (if (string= reason "")
3287 (format "PART %s" ch)
3288 (format "PART %s :%s" ch reason))
3289 nil ch))
3290 (erc-display-message nil 'error (current-buffer) 'no-target)))
3291 t)
3292 (t nil)))
3293 (put 'erc-cmd-PART 'do-not-parse-args t)
3295 (defalias 'erc-cmd-LEAVE 'erc-cmd-PART)
3297 (defun erc-cmd-PING (recipient)
3298 "Ping RECIPIENT."
3299 (let ((time (format "%f" (erc-current-time))))
3300 (erc-log (format "cmd: PING: %s" time))
3301 (erc-cmd-CTCP recipient "PING" time)))
3303 (defun erc-cmd-QUOTE (line)
3304 "Send LINE directly to the server.
3305 All the text given as argument is sent to the sever as unmodified,
3306 just as you provided it. Use this command with care!"
3307 (cond
3309 (erc-server-send (match-string 1 line)))
3310 (t nil)))
3311 (put 'erc-cmd-QUOTE 'do-not-parse-args t)
3313 (defcustom erc-query-display 'window
3314 "Indicates how to display query buffers when using the /QUERY
3315 command to talk to someone.
3317 The default behavior is to display the message in a new window
3318 and bring it to the front. See the documentation for
3319 `erc-join-buffer' for a description of the available choices.
3321 See also `erc-auto-query' to decide how private messages from
3322 other people should be displayed."
3323 :group 'erc-query
3324 :type '(choice (const :tag "Split window and select" window)
3325 (const :tag "Split window, don't select" window-noselect)
3326 (const :tag "New frame" frame)
3327 (const :tag "Bury in new buffer" bury)
3328 (const :tag "Use current buffer" buffer)
3329 (const :tag "Use current buffer" t)))
3331 (defun erc-cmd-QUERY (&optional user)
3332 "Open a query with USER.
3333 The type of query window/frame/etc will depend on the value of
3334 `erc-query-display'.
3336 If USER is omitted, close the current query buffer if one exists
3337 - except this is broken now ;-)"
3338 (interactive
3339 (list (read-from-minibuffer "Start a query with: " nil)))
3340 (let ((session-buffer (erc-server-buffer))
3341 (erc-join-buffer erc-query-display))
3342 (if user
3343 (erc-query user session-buffer)
3344 ;; currently broken, evil hack to display help anyway
3345 ;(erc-delete-query))))
3346 (signal 'wrong-number-of-arguments ""))))
3347 (defalias 'erc-cmd-Q 'erc-cmd-QUERY)
3349 (defun erc-quit-reason-normal (&optional s)
3350 "Normal quit message.
3352 If S is non-nil, it will be used as the quit reason."
3353 (or s
3354 (format "\C-bERC\C-b %s (IRC client for Emacs)"; - \C-b%s\C-b"
3355 erc-version-string) ; erc-official-location)
3356 ))
3358 (defun erc-quit-reason-zippy (&optional s)
3359 "Zippy quit message.
3361 If S is non-nil, it will be used as the quit reason."
3362 (or s
3363 (if (fboundp 'yow)
3365 (erc-quit-reason-normal))))
3367 (make-obsolete 'erc-quit-reason-zippy "it will be removed." "24.4")
3369 (defun erc-quit-reason-various (s)
3370 "Choose a quit reason based on S (a string)."
3371 (when (featurep 'xemacs) (require 'poe))
3372 (let ((res (car (assoc-default (or s "")
3373 erc-quit-reason-various-alist 'string-match))))
3374 (cond
3375 ((functionp res) (funcall res))
3376 ((stringp res) res)
3377 (s s)
3378 (t (erc-quit-reason-normal)))))
3380 (defun erc-part-reason-normal (&optional s)
3381 "Normal part message.
3383 If S is non-nil, it will be used as the quit reason."
3384 (or s
3385 (format "\C-bERC\C-b %s (IRC client for Emacs)"; - \C-b%s\C-b"
3386 erc-version-string) ; erc-official-location)
3387 ))
3389 (defun erc-part-reason-zippy (&optional s)
3390 "Zippy part message.
3392 If S is non-nil, it will be used as the quit reason."
3393 (or s
3394 (if (fboundp 'yow)
3396 (erc-part-reason-normal))))
3398 (make-obsolete 'erc-part-reason-zippy "it will be removed." "24.4")
3400 (defun erc-part-reason-various (s)
3401 "Choose a part reason based on S (a string)."
3402 (when (featurep 'xemacs) (require 'poe))
3403 (let ((res (car (assoc-default (or s "")
3404 erc-part-reason-various-alist 'string-match))))
3405 (cond
3406 ((functionp res) (funcall res))
3407 ((stringp res) res)
3408 (s s)
3409 (t (erc-part-reason-normal)))))
3411 (defun erc-cmd-QUIT (reason)
3412 "Disconnect from the current server.
3413 If REASON is omitted, display a default quit message, otherwise display
3414 the message given by REASON."
3415 (unless reason
3416 (setq reason ""))
3417 (cond
3419 (let* ((s (match-string 1 reason))
3420 (buffer (erc-server-buffer))
3421 (reason (funcall erc-quit-reason (if (equal s "") nil s)))
3422 server-proc)
3423 (with-current-buffer (if (and buffer
3424 (bufferp buffer))
3425 buffer
3426 (current-buffer))
3427 (erc-log (format "cmd: QUIT: %s" reason))
3428 (setq erc-server-quitting t)
3429 (erc-set-active-buffer (erc-server-buffer))
3430 (setq server-proc erc-server-process)
3431 (erc-server-send (format "QUIT :%s" reason)))
3432 (run-hook-with-args 'erc-quit-hook server-proc)
3433 (when erc-kill-queries-on-quit
3434 (erc-kill-query-buffers server-proc))
3435 ;; if the process has not been killed within 4 seconds, kill it
3436 (run-at-time 4 nil
3437 (lambda (proc)
3438 (when (and (processp proc)
3439 (memq (process-status proc) '(run open)))
3440 (delete-process proc)))
3441 server-proc))
3442 t)
3443 (t nil)))
3445 (defalias 'erc-cmd-BYE 'erc-cmd-QUIT)
3446 (defalias 'erc-cmd-EXIT 'erc-cmd-QUIT)
3447 (defalias 'erc-cmd-SIGNOFF 'erc-cmd-QUIT)
3448 (put 'erc-cmd-QUIT 'do-not-parse-args t)
3449 (put 'erc-cmd-QUIT 'process-not-needed t)
3451 (defun erc-cmd-GQUIT (reason)
3452 "Disconnect from all servers at once with the same quit REASON."
3453 (erc-with-all-buffers-of-server nil #'erc-open-server-buffer-p
3454 (erc-cmd-QUIT reason))
3455 (when erc-kill-queries-on-quit
3456 ;; if the query buffers have not been killed within 4 seconds,
3457 ;; kill them
3458 (run-at-time
3459 4 nil
3460 (lambda ()
3461 (dolist (buffer (erc-buffer-list (lambda (buf)
3462 (not (erc-server-buffer-p buf)))))
3463 (kill-buffer buffer)))))
3464 t)
3466 (defalias 'erc-cmd-GQ 'erc-cmd-GQUIT)
3467 (put 'erc-cmd-GQUIT 'do-not-parse-args t)
3468 (put 'erc-cmd-GQUIT 'process-not-needed t)
3470 (defun erc-cmd-RECONNECT ()
3471 "Try to reconnect to the current IRC server."
3472 (let ((buffer (erc-server-buffer))
3473 (process nil))
3474 (unless (buffer-live-p buffer)
3475 (setq buffer (current-buffer)))
3476 (with-current-buffer buffer
3477 (setq erc-server-quitting nil)
3478 (setq erc-server-reconnecting t)
3479 (setq erc-server-reconnect-count 0)
3480 (setq process (get-buffer-process (erc-server-buffer)))
3481 (if process
3482 (delete-process process)
3483 (erc-server-reconnect))
3484 (setq erc-server-reconnecting nil)))
3485 t)
3486 (put 'erc-cmd-RECONNECT 'process-not-needed t)
3488 (defun erc-cmd-SERVER (server)
3489 "Connect to SERVER, leaving existing connection intact."
3490 (erc-log (format "cmd: SERVER: %s" server))
3491 (condition-case nil
3492 (erc :server server :nick (erc-current-nick))
3493 (error
3494 (erc-error "Cannot find host %s." server)))
3495 t)
3496 (put 'erc-cmd-SERVER 'process-not-needed t)
3498 (defvar motif-version-string)
3499 (defvar gtk-version-string)
3501 (defun erc-cmd-SV ()
3502 "Say the current ERC and Emacs version into channel."
3503 (erc-send-message (format "I'm using ERC %s with %s %s (%s%s) of %s."
3504 erc-version-string
3505 (if (featurep 'xemacs) "XEmacs" "GNU Emacs")
3506 emacs-version
3507 system-configuration
3508 (concat
3509 (cond ((featurep 'motif)
3510 (concat ", " (substring
3511 motif-version-string 4)))
3512 ((featurep 'gtk)
3513 (concat ", GTK+ Version "
3514 gtk-version-string))
3515 ((featurep 'x-toolkit) ", X toolkit")
3516 (t ""))
3517 (if (and (boundp 'x-toolkit-scroll-bars)
3518 (memq x-toolkit-scroll-bars
3519 '(xaw xaw3d)))
3520 (format ", %s scroll bars"
3521 (capitalize (symbol-name
3522 x-toolkit-scroll-bars)))
3523 "")
3524 (if (featurep 'multi-tty) ", multi-tty" ""))
3525 erc-emacs-build-time))
3526 t)
3528 (defun erc-cmd-SM ()
3529 "Say the current ERC modes into channel."
3530 (erc-send-message (format "I'm using the following modules: %s!"
3531 (erc-modes)))
3532 t)
3534 (defun erc-cmd-DEOP (&rest people)
3535 "Remove the operator setting from user(s) given in PEOPLE."
3536 (when (> (length people) 0)
3537 (erc-server-send (concat "MODE " (erc-default-target)
3538 " -"
3539 (make-string (length people) ?o)
3540 " "
3541 (mapconcat 'identity people " ")))
3542 t))
3544 (defun erc-cmd-OP (&rest people)
3545 "Add the operator setting to users(s) given in PEOPLE."
3546 (when (> (length people) 0)
3547 (erc-server-send (concat "MODE " (erc-default-target)
3548 " +"
3549 (make-string (length people) ?o)
3550 " "
3551 (mapconcat 'identity people " ")))
3552 t))
3554 (defun erc-cmd-TIME (&optional line)
3555 "Request the current time and date from the current server."
3556 (cond
3558 (let ((args (match-string 1 line)))
3559 (erc-log (format "cmd: TIME: %s" args))
3560 (erc-server-send (concat "TIME " args)))
3561 t)
3562 (t (erc-server-send "TIME"))))
3563 (defalias 'erc-cmd-DATE 'erc-cmd-TIME)
3565 (defun erc-cmd-TOPIC (topic)
3566 "Set or request the topic for a channel.
3568 or the empty string.
3570 If no #CHANNEL is given, the default channel is used. If TOPIC is
3571 given, the channel topic is modified, otherwise the current topic will
3572 be displayed."
3573 (cond
3574 ;; /topic #channel TOPIC
3576 (let ((ch (match-string 1 topic))
3577 (topic (match-string 2 topic)))
3578 (erc-log (format "cmd: TOPIC [%s]: %s" ch topic))
3579 (erc-server-send (format "TOPIC %s :%s" ch topic) nil ch))
3580 t)
3581 ;; /topic #channel
3583 (let ((ch (match-string 1 topic)))
3584 (erc-server-send (format "TOPIC %s" ch) nil ch)
3585 t))
3586 ;; /topic
3588 (let ((ch (erc-default-target)))
3589 (erc-server-send (format "TOPIC %s" ch) nil ch)
3590 t))
3591 ;; /topic TOPIC
3593 (let ((ch (erc-default-target))
3594 (topic (match-string 1 topic)))
3595 (if (and ch (erc-channel-p ch))
3596 (progn
3597 (erc-log (format "cmd: TOPIC [%s]: %s" ch topic))
3598 (erc-server-send (format "TOPIC %s :%s" ch topic) nil ch))
3599 (erc-display-message nil 'error (current-buffer) 'no-target)))
3600 t)
3601 (t nil)))
3602 (defalias 'erc-cmd-T 'erc-cmd-TOPIC)
3603 (put 'erc-cmd-TOPIC 'do-not-parse-args t)
3605 (defun erc-cmd-APPENDTOPIC (topic)
3606 "Append TOPIC to the current channel topic, separated by a space."
3607 (let ((oldtopic erc-channel-topic))
3608 ;; display help when given no arguments
3610 (signal 'wrong-number-of-arguments nil))
3611 ;; strip trailing ^O
3613 (erc-cmd-TOPIC (concat (match-string 1 oldtopic) topic)))))
3614 (defalias 'erc-cmd-AT 'erc-cmd-APPENDTOPIC)
3615 (put 'erc-cmd-APPENDTOPIC 'do-not-parse-args t)
3617 (defun erc-cmd-CLEARTOPIC (&optional channel)
3618 "Clear the topic for a CHANNEL.
3619 If CHANNEL is not specified, clear the topic for the default channel."
3620 (interactive "sClear topic of channel (RET is current channel): ")
3621 (let ((chnl (or (and (erc-channel-p channel) channel) (erc-default-target))))
3622 (when chnl
3623 (erc-server-send (format "TOPIC %s :" chnl))
3624 t)))
3626 ;;; Banlists
3628 (defvar erc-channel-banlist nil
3629 "A list of bans seen for the current channel.
3631 Each ban is an alist of the form:
3632 (WHOSET . MASK)
3634 The property `received-from-server' indicates whether
3635 or not the ban list has been requested from the server.")
3636 (make-variable-buffer-local 'erc-channel-banlist)
3637 (put 'erc-channel-banlist 'received-from-server nil)
3639 (defun erc-cmd-BANLIST ()
3640 "Pretty-print the contents of `erc-channel-banlist'.
3642 The ban list is fetched from the server if necessary."
3643 (let ((chnl (erc-default-target))
3644 (chnl-name (buffer-name)))
3646 (cond
3647 ((not (erc-channel-p chnl))
3649 'active))
3651 ((not (get 'erc-channel-banlist 'received-from-server))
3652 (let ((old-367-hook erc-server-367-functions))
3653 (setq erc-server-367-functions 'erc-banlist-store
3654 erc-channel-banlist nil)
3655 ;; fetch the ban list then callback
3656 (erc-with-server-buffer
3657 (erc-once-with-server-event
3658 368
3659 (lambda (_proc _parsed)
3660 (with-current-buffer chnl-name
3661 (put 'erc-channel-banlist 'received-from-server t)
3662 (setq erc-server-367-functions old-367-hook)
3663 (erc-cmd-BANLIST)
3664 t)))
3665 (erc-server-send (format "MODE %s b" chnl)))))
3667 ((null erc-channel-banlist)
3668 (erc-display-line (erc-make-notice
3670 'active)
3671 (put 'erc-channel-banlist 'received-from-server nil))
3673 (t
3674 (let* ((erc-fill-column (or (and (boundp 'erc-fill-column)
3675 erc-fill-column)
3676 (and (boundp 'fill-column)
3677 fill-column)
3678 (1- (window-width))))
3679 (separator (make-string erc-fill-column ?=))
3680 (fmt (concat
3681 "%-" (number-to-string (/ erc-fill-column 2)) "s"
3682 "%" (number-to-string (/ erc-fill-column 2)) "s")))
3684 (erc-display-line
3686 (erc-default-target)))
3687 'active)
3689 (erc-display-line separator 'active)
3690 (erc-display-line (format fmt "Ban Mask" "Banned By") 'active)
3691 (erc-display-line separator 'active)
3693 (mapc
3694 (lambda (x)
3695 (erc-display-line
3696 (format fmt
3697 (truncate-string-to-width (cdr x) (/ erc-fill-column 2))
3698 (if (car x)
3699 (truncate-string-to-width (car x) (/ erc-fill-column 2))
3700 ""))
3701 'active))
3702 erc-channel-banlist)
3704 (erc-display-line (erc-make-notice "End of Ban list")
3705 'active)
3706 (put 'erc-channel-banlist 'received-from-server nil)))))
3707 t)
3709 (defalias 'erc-cmd-BL 'erc-cmd-BANLIST)
3711 (defun erc-cmd-MASSUNBAN ()
3712 "Mass Unban.
3714 Unban all currently banned users in the current channel."
3715 (let ((chnl (erc-default-target)))
3716 (cond
3718 ((not (erc-channel-p chnl))
3719 (erc-display-line
3721 'active))
3723 ((not (get 'erc-channel-banlist 'received-from-server))
3724 (let ((old-367-hook erc-server-367-functions))
3725 (setq erc-server-367-functions 'erc-banlist-store)
3726 ;; fetch the ban list then callback
3727 (erc-with-server-buffer
3728 (erc-once-with-server-event
3729 368
3730 (lambda (_proc _parsed)
3731 (with-current-buffer chnl
3732 (put 'erc-channel-banlist 'received-from-server t)
3733 (setq erc-server-367-functions old-367-hook)
3734 (erc-cmd-MASSUNBAN)
3735 t)))
3736 (erc-server-send (format "MODE %s b" chnl)))))
3738 (t (let ((bans (mapcar 'cdr erc-channel-banlist)))
3739 (when bans
3740 ;; Glob the bans into groups of three, and carry out the unban.
3741 ;; eg. /mode #foo -bbb a*!*@* b*!*@* c*!*@*
3742 (mapc
3743 (lambda (x)
3744 (erc-server-send
3745 (format "MODE %s -%s %s" (erc-default-target)
3746 (make-string (length x) ?b)
3747 (mapconcat 'identity x " "))))
3748 (erc-group-list bans 3))))
3749 t))))
3751 (defalias 'erc-cmd-MUB 'erc-cmd-MASSUNBAN)
3753 ;;;; End of IRC commands
3755 (defun erc-ensure-channel-name (channel)
3756 "Return CHANNEL if it is a valid channel name.
3757 Eventually add a # in front of it, if that turns it into a valid channel name."
3758 (if (erc-channel-p channel)
3759 channel
3760 (concat "#" channel)))
3762 (defun erc-grab-region (start end)
3763 "Copy the region between START and END in a recreatable format.
3765 Converts all the IRC text properties in each line of the region
3766 into control codes and writes them to a separate buffer. The
3767 resulting text may be used directly as a script to generate this
3768 text again."
3769 (interactive "r")
3770 (erc-set-active-buffer (current-buffer))
3771 (save-excursion
3772 (let* ((cb (current-buffer))
3773 (buf (generate-new-buffer erc-grab-buffer-name))
3774 (region (buffer-substring start end))
3775 (lines (erc-split-multiline-safe region)))
3776 (set-buffer buf)
3777 (dolist (line lines)
3779 (set-buffer cb)
3780 (switch-to-buffer-other-window buf)))
3781 (message "erc-grab-region doesn't grab colors etc. anymore. If you use this, please tell the maintainers.")
3782 (ding))
3784 (defun erc-display-prompt (&optional buffer pos prompt face)
3785 "Display PROMPT in BUFFER at position POS.
3786 Display an ERC prompt in BUFFER.
3788 If PROMPT is nil, one is constructed with the function `erc-prompt'.
3789 If BUFFER is nil, the `current-buffer' is used.
3790 If POS is nil, PROMPT will be displayed at `point'.
3791 If FACE is non-nil, it will be used to propertize the prompt. If it is nil,
3792 `erc-prompt-face' will be used."
3793 (let* ((prompt (or prompt (erc-prompt)))
3794 (l (length prompt))
3795 (ob (current-buffer)))
3796 ;; We cannot use save-excursion because we move point, therefore
3797 ;; we resort to the ol' ob trick to restore this.
3798 (when (and buffer (bufferp buffer))
3799 (set-buffer buffer))
3801 ;; now save excursion again to store where point and mark are
3802 ;; in the current buffer
3803 (save-excursion
3804 (setq pos (or pos (point)))
3805 (goto-char pos)
3806 (when (> l 0)
3807 ;; Do not extend the text properties when typing at the end
3808 ;; of the prompt, but stuff typed in front of the prompt
3809 ;; shall remain part of the prompt.
3810 (setq prompt (erc-propertize prompt
3811 'start-open t ; XEmacs
3812 'rear-nonsticky t ; Emacs
3813 'erc-prompt t
3814 'field t
3815 'front-sticky t
3816 'read-only t))
3817 (erc-put-text-property 0 (1- (length prompt))
3818 'face (or face 'erc-prompt-face)
3819 prompt)
3820 (insert prompt))
3821 ;; Set the input marker
3822 (set-marker erc-input-marker (point)))
3824 ;; Now we are back at the old position. If the prompt was
3825 ;; inserted here or before us, advance point by the length of
3826 ;; the prompt.
3827 (when (or (not pos) (<= (point) pos))
3828 (forward-char l))
3829 ;; Clear the undo buffer now, so the user can undo his stuff,
3830 ;; but not the stuff we did. Sneaky!
3831 (setq buffer-undo-list nil)
3832 (set-buffer ob)))
3834 ;; interactive operations
3836 (defun erc-input-message ()
3837 "Read input from the minibuffer."
3838 (interactive)
3839 (let ((minibuffer-allow-text-properties t)
3840 (read-map minibuffer-local-map))
3841 (insert (read-from-minibuffer "Message: "
3842 (string (if (featurep 'xemacs)
3843 last-command-char
3844 last-command-event)) read-map))
3845 (erc-send-current-line)))
3847 (defvar erc-action-history-list ()
3848 "History list for interactive action input.")
3850 (defun erc-input-action ()
3851 "Interactively input a user action and send it to IRC."
3852 (interactive "")
3853 (erc-set-active-buffer (current-buffer))
3854 (let ((action (read-from-minibuffer
3855 "Action: " nil nil nil 'erc-action-history-list)))
3857 (erc-send-action (erc-default-target) action))))
3859 (defun erc-join-channel (channel &optional key)
3860 "Join CHANNEL.
3862 If `point' is at the beginning of a channel name, use that as default."
3863 (interactive
3864 (list
3866 (table (when (erc-server-buffer-live-p)
3867 (set-buffer (process-buffer erc-server-process))
3868 erc-channel-list)))
3869 (completing-read "Join channel: " table nil nil nil nil chnl))
3870 (when (or current-prefix-arg erc-prompt-for-channel-key)
3871 (read-from-minibuffer "Channel key (RET for none): " nil))))
3872 (erc-cmd-JOIN channel (when (>= (length key) 1) key)))
3874 (defun erc-part-from-channel (reason)
3875 "Part from the current channel and prompt for a REASON."
3876 (interactive
3877 (list
3878 (if (and (boundp 'reason) (stringp reason) (not (string= reason "")))
3879 reason
3880 (read-from-minibuffer (concat "Reason for leaving " (erc-default-target)
3881 ": ")))))
3882 (erc-cmd-PART (concat (erc-default-target)" " reason)))
3884 (defun erc-set-topic (topic)
3885 "Prompt for a TOPIC for the current channel."
3886 (interactive
3887 (list
3888 (read-from-minibuffer
3889 (concat "Set topic of " (erc-default-target) ": ")
3890 (when erc-channel-topic
3891 (let ((ss (split-string erc-channel-topic "\C-o")))
3892 (cons (apply 'concat (if (cdr ss) (butlast ss) ss))
3893 0))))))
3894 (let ((topic-list (split-string topic "\C-o"))) ; strip off the topic setter
3895 (erc-cmd-TOPIC (concat (erc-default-target) " " (car topic-list)))))
3897 (defun erc-set-channel-limit (&optional limit)
3898 "Set a LIMIT for the current channel. Remove limit if nil.
3899 Prompt for one if called interactively."
3900 (interactive (list (read-from-minibuffer
3901 (format "Limit for %s (RET to remove limit): "
3902 (erc-default-target)))))
3903 (let ((tgt (erc-default-target)))
3904 (erc-server-send (if (and limit (>= (length limit) 1))
3905 (format "MODE %s +l %s" tgt limit)
3906 (format "MODE %s -l" tgt)))))
3908 (defun erc-set-channel-key (&optional key)
3909 "Set a KEY for the current channel. Remove key if nil.
3910 Prompt for one if called interactively."
3911 (interactive (list (read-from-minibuffer
3912 (format "Key for %s (RET to remove key): "
3913 (erc-default-target)))))
3914 (let ((tgt (erc-default-target)))
3915 (erc-server-send (if (and key (>= (length key) 1))
3916 (format "MODE %s +k %s" tgt key)
3917 (format "MODE %s -k" tgt)))))
3919 (defun erc-quit-server (reason)
3920 "Disconnect from current server after prompting for REASON.
3921 `erc-quit-reason' works with this just like with `erc-cmd-QUIT'."
3922 (interactive (list (read-from-minibuffer
3923 (format "Reason for quitting %s: "
3924 (or erc-server-announced-name
3925 erc-session-server)))))
3926 (erc-cmd-QUIT reason))
3928 ;; Movement of point
3930 (defun erc-bol ()
3931 "Move `point' to the beginning of the current line.
3933 This places `point' just after the prompt, or at the beginning of the line."
3934 (interactive)
3935 (forward-line 0)
3936 (when (get-text-property (point) 'erc-prompt)
3937 (goto-char erc-input-marker))
3938 (point))
3940 (defun erc-kill-input ()
3941 "Kill current input line using `erc-bol' followed by `kill-line'."
3942 (interactive)
3943 (when (and (erc-bol)
3944 (/= (point) (point-max))) ;; Prevent a (ding) and an error when
3945 ;; there's nothing to kill
3946 (if (boundp 'erc-input-ring-index)
3947 (setq erc-input-ring-index nil))
3948 (kill-line)))
3950 (defun erc-complete-word-at-point ()
3951 (run-hook-with-args-until-success 'erc-complete-functions))
3953 (define-obsolete-function-alias 'erc-complete-word 'completion-at-point "24.1")
3955 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3956 ;;
3957 ;; IRC SERVER INPUT HANDLING
3958 ;;
3959 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3961 ;;;; New Input parsing
3963 ; Stolen from ZenIRC. I just wanna test this code, so here is
3964 ; experiment area.
3966 (defcustom erc-default-server-hook '(erc-debug-missing-hooks
3967 erc-default-server-handler)
3968 "Default for server messages which aren't covered by `erc-server-hooks'."
3969 :group 'erc-server-hooks
3970 :type 'hook)
3972 (defun erc-default-server-handler (proc parsed)
3973 "Default server handler.
3975 Displays PROC and PARSED appropriately using `erc-display-message'."
3976 (erc-display-message
3977 parsed 'notice proc
3978 (mapconcat
3979 'identity
3980 (let (res)
3981 (mapc #'(lambda (x)
3982 (if (stringp x)
3983 (setq res (append res (list x)))))
3984 parsed)
3985 res)
3986 " ")))
3988 (defvar erc-server-vectors
3989 '(["msgtype" "sender" "to" "arg1" "arg2" "arg3" "..."])
3990 "List of received server messages which ERC does not specifically handle.
3991 See `erc-debug-missing-hooks'.")
3992 ;(make-variable-buffer-local 'erc-server-vectors)
3994 (defun erc-debug-missing-hooks (_proc parsed)
3995 "Add PARSED server message ERC does not yet handle to `erc-server-vectors'.
3996 These vectors can be helpful when adding new server message handlers to ERC.
3997 See `erc-default-server-hook'."
3998 (nconc erc-server-vectors (list parsed))
3999 nil)
4001 (defun erc-query (target server)
4002 "Open a query buffer on TARGET, using SERVER.
4003 To change how this query window is displayed, use `let' to bind
4004 `erc-join-buffer' before calling this."
4005 (unless (and server
4006 (buffer-live-p server)
4007 (set-buffer server))
4008 (error "Couldn't switch to server buffer"))
4009 (let ((buf (erc-open erc-session-server
4010 erc-session-port
4011 (erc-current-nick)
4012 erc-session-user-full-name
4013 nil
4014 nil
4015 (list target)
4016 target
4017 erc-server-process)))
4018 (unless buf
4019 (error "Couldn't open query window"))
4020 (erc-update-mode-line)
4021 buf))
4023 (defcustom erc-auto-query 'window-noselect
4024 "If non-nil, create a query buffer each time you receive a private message.
4025 If the buffer doesn't already exist, it is created.
4027 This can be set to a symbol, to control how the new query window
4028 should appear. The default behavior is to display the buffer in
4029 a new window, but not to select it. See the documentation for
4030 `erc-join-buffer' for a description of the available choices."
4031 :group 'erc-query
4032 :type '(choice (const :tag "Don't create query window" nil)
4033 (const :tag "Split window and select" window)
4034 (const :tag "Split window, don't select" window-noselect)
4035 (const :tag "New frame" frame)
4036 (const :tag "Bury in new buffer" bury)
4037 (const :tag "Use current buffer" buffer)
4038 (const :tag "Use current buffer" t)))
4040 (defcustom erc-query-on-unjoined-chan-privmsg t
4041 "If non-nil create query buffer on receiving any PRIVMSG at all.
4042 This includes PRIVMSGs directed to channels. If you are using an IRC
4043 bouncer, such as dircproxy, to keep a log of channels when you are
4044 disconnected, you should set this option to t."
4045 :group 'erc-query
4046 :type 'boolean)
4048 (defcustom erc-format-query-as-channel-p t
4049 "If non-nil, format text from others in a query buffer like in a channel,
4050 otherwise format like a private message."
4051 :group 'erc-query
4052 :type 'boolean)
4054 (defcustom erc-minibuffer-notice nil
4055 "If non-nil, print ERC notices for the user in the minibuffer.
4056 Only happens when the session buffer isn't visible."
4057 :group 'erc-display
4058 :type 'boolean)
4060 (defcustom erc-minibuffer-ignored nil
4061 "If non-nil, print a message in the minibuffer if we ignored something."
4062 :group 'erc-ignore
4063 :type 'boolean)
4065 (defun erc-wash-quit-reason (reason nick login host)
4066 "Remove duplicate text from quit REASON.
4067 Specifically in relation to NICK (user@host) information. Returns REASON
4068 unmodified if nothing can be removed.
4071 (setq nick (regexp-quote nick)
4072 login (regexp-quote login)
4073 host (regexp-quote host))
4077 (concat (match-string 1 reason) ": " (match-string 2 reason)))
4080 (match-string 1 reason))
4081 reason))
4083 (defun erc-nickname-in-use (nick reason)
4084 "If NICK is unavailable, tell the user the REASON.
4086 See also `erc-display-error-notice'."
4087 (if (or (not erc-try-new-nick-p)
4088 ;; how many default-nicks are left + one more try...
4089 (eq erc-nick-change-attempt-count
4090 (if (consp erc-nick)
4091 (+ (length erc-nick) 1)
4092 1)))
4093 (erc-display-error-notice
4094 nil
4095 (format "Nickname %s is %s, try another." nick reason))
4096 (setq erc-nick-change-attempt-count (+ erc-nick-change-attempt-count 1))
4097 (let ((newnick (nth 1 erc-default-nicks))
4098 (nicklen (cdr (assoc "NICKLEN"
4099 (erc-with-server-buffer
4100 erc-server-parameters)))))
4101 (setq erc-bad-nick t)
4102 ;; try to use a different nick
4103 (if erc-default-nicks
4104 (setq erc-default-nicks (cdr erc-default-nicks)))
4105 (if (not newnick)
4106 (setq newnick (concat (truncate-string-to-width
4107 nick
4108 (if (and erc-server-connected nicklen)
4109 (- (string-to-number nicklen)
4110 (length erc-nick-uniquifier))
4111 ;; rfc2812 max nick length = 9
4112 ;; we must assume this is the
4113 ;; server's setting if we haven't
4114 ;; established a connection yet
4115 (- 9 (length erc-nick-uniquifier))))
4116 erc-nick-uniquifier)))
4117 (erc-cmd-NICK newnick)
4118 (erc-display-error-notice
4119 nil
4120 (format "Nickname %s is %s, trying %s"
4121 nick reason newnick)))))
4123 ;;; Server messages
4125 (defgroup erc-server-hooks nil
4126 "Server event callbacks.
4127 Every server event - like numeric replies - has its own hook.
4128 Those hooks are all called using `run-hook-with-args-until-success'.
4129 They receive as first argument the process object from where the event
4130 originated from,
4131 and as second argument the event parsed as a vector."
4132 :group 'erc-hooks)
4134 (defun erc-display-server-message (_proc parsed)
4135 "Display the message sent by the server as a notice."
4136 (erc-display-message
4137 parsed 'notice 'active (erc-response.contents parsed)))
4139 (defun erc-auto-query (proc parsed)
4140 ;; FIXME: This needs more documentation, unless it's not a user function --
4141 ;; Lawrence 2004-01-08
4142 "Put this on `erc-server-PRIVMSG-functions'."
4143 (when erc-auto-query
4144 (let* ((nick (car (erc-parse-user (erc-response.sender parsed))))
4145 (target (car (erc-response.command-args parsed)))
4146 (msg (erc-response.contents parsed))
4147 (query (if (not erc-query-on-unjoined-chan-privmsg)
4148 nick
4149 (if (erc-current-nick-p target)
4150 nick
4151 target))))
4152 (and (not (erc-ignored-user-p (erc-response.sender parsed)))
4153 (or erc-query-on-unjoined-chan-privmsg
4154 (string= target (erc-current-nick)))
4155 (not (erc-get-buffer query proc))
4156 (not (erc-is-message-ctcp-and-not-action-p msg))
4157 (let ((erc-query-display erc-auto-query))
4158 (erc-cmd-QUERY query))
4159 nil))))
4161 (defun erc-is-message-ctcp-p (message)
4162 "Check if MESSAGE is a CTCP message or not."
4165 (defun erc-is-message-ctcp-and-not-action-p (message)
4166 "Check if MESSAGE is a CTCP message or not."
4167 (and (erc-is-message-ctcp-p message)
4170 (defun erc-format-privmessage (nick msg privp msgp)
4171 "Format a PRIVMSG in an insertable fashion."
4172 (let* ((mark-s (if msgp (if privp "*" "<") "-"))
4173 (mark-e (if msgp (if privp "*" ">") "-"))
4174 (str (format "%s%s%s %s" mark-s nick mark-e msg))
4175 (nick-face (if privp 'erc-nick-msg-face 'erc-nick-default-face))
4176 (msg-face (if privp 'erc-direct-msg-face 'erc-default-face)))
4177 ;; add text properties to text before the nick, the nick and after the nick
4178 (erc-put-text-property 0 (length mark-s) 'face msg-face str)
4179 (erc-put-text-property (length mark-s) (+ (length mark-s) (length nick))
4180 'face nick-face str)
4181 (erc-put-text-property (+ (length mark-s) (length nick)) (length str)
4182 'face msg-face str)
4183 str))
4185 (defcustom erc-format-nick-function 'erc-format-nick
4186 "Function to format a nickname for message display."
4187 :group 'erc-display
4188 :type 'function)
4190 (defun erc-format-nick (&optional user _channel-data)
4191 "Return the nickname of USER.
4192 See also `erc-format-nick-function'."
4193 (when user (erc-server-user-nickname user)))
4195 (defun erc-format-@nick (&optional user channel-data)
4196 "Format the nickname of USER showing if USER is an operator or has voice.
4198 Use CHANNEL-DATA to determine op and voice status.
4199 See also `erc-format-nick-function'."
4200 (when user
4201 (let ((op (and channel-data (erc-channel-user-op channel-data) "@"))
4202 (voice (and channel-data (erc-channel-user-voice channel-data) "+")))
4203 (concat voice op (erc-server-user-nickname user)))))
4205 (defun erc-format-my-nick ()
4206 "Return the beginning of this user's message, correctly propertized."
4207 (if erc-show-my-nick
4208 (let ((open "<")
4209 (close "> ")
4210 (nick (erc-current-nick)))
4211 (concat
4212 (erc-propertize open 'face 'erc-default-face)
4213 (erc-propertize nick 'face 'erc-my-nick-face)
4214 (erc-propertize close 'face 'erc-default-face)))
4215 (let ((prefix "> "))
4216 (erc-propertize prefix 'face 'erc-default-face))))
4218 (defun erc-echo-notice-in-default-buffer (s parsed buffer _sender)
4219 "Echos a private notice in the default buffer, namely the
4220 target buffer specified by BUFFER, or there is no target buffer,
4221 the server buffer. This function is designed to be added to
4222 either `erc-echo-notice-hook' or `erc-echo-notice-always-hook',
4223 and always returns t."
4224 (erc-display-message parsed nil buffer s)
4225 t)
4227 (defun erc-echo-notice-in-target-buffer (s parsed buffer _sender)
4228 "Echos a private notice in BUFFER, if BUFFER is non-nil. This
4229 function is designed to be added to either `erc-echo-notice-hook'
4230 or `erc-echo-notice-always-hook', and returns non-nil if BUFFER
4231 is non-nil."
4232 (if buffer
4233 (progn (erc-display-message parsed nil buffer s) t)
4234 nil))
4236 (defun erc-echo-notice-in-minibuffer (s _parsed _buffer _sender)
4237 "Echos a private notice in the minibuffer. This function is
4238 designed to be added to either `erc-echo-notice-hook' or
4239 `erc-echo-notice-always-hook', and always returns t."
4240 (message "%s" (concat "NOTICE: " s))
4241 t)
4243 (defun erc-echo-notice-in-server-buffer (s parsed _buffer _sender)
4244 "Echos a private notice in the server buffer. This function is
4245 designed to be added to either `erc-echo-notice-hook' or
4246 `erc-echo-notice-always-hook', and always returns t."
4247 (erc-display-message parsed nil nil s)
4248 t)
4250 (defun erc-echo-notice-in-active-non-server-buffer (s parsed _buffer _sender)
4251 "Echos a private notice in the active buffer if the active
4252 buffer is not the server buffer. This function is designed to be
4253 added to either `erc-echo-notice-hook' or
4254 `erc-echo-notice-always-hook', and returns non-nil if the active
4255 buffer is not the server buffer."
4256 (if (not (eq (erc-server-buffer) (erc-active-buffer)))
4257 (progn (erc-display-message parsed nil 'active s) t)
4258 nil))
4260 (defun erc-echo-notice-in-active-buffer (s parsed _buffer _sender)
4261 "Echos a private notice in the active buffer. This function is
4262 designed to be added to either `erc-echo-notice-hook' or
4263 `erc-echo-notice-always-hook', and always returns t."
4264 (erc-display-message parsed nil 'active s)
4265 t)
4267 (defun erc-echo-notice-in-user-buffers (s parsed _buffer sender)
4268 "Echos a private notice in all of the buffers for which SENDER
4269 is a member. This function is designed to be added to either
4270 `erc-echo-notice-hook' or `erc-echo-notice-always-hook', and
4271 returns non-nil if there is at least one buffer for which the
4272 sender is a member.
4274 See also: `erc-echo-notice-in-first-user-buffer',
4275 `erc-buffer-list-with-nick'."
4276 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
4277 (if buffers
4278 (progn (erc-display-message parsed nil buffers s) t)
4279 nil)))
4281 (defun erc-echo-notice-in-user-and-target-buffers (s parsed buffer sender)
4282 "Echos a private notice in BUFFER and in all of the buffers for
4283 which SENDER is a member. This function is designed to be added
4284 to either `erc-echo-notice-hook' or
4285 `erc-echo-notice-always-hook', and returns non-nil if there is
4286 at least one buffer for which the sender is a member or the
4287 default target.
4289 See also: `erc-echo-notice-in-user-buffers',
4290 `erc-buffer-list-with-nick'."
4291 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
4292 (unless (memq buffer buffers) (push buffer buffers))
4293 (if buffers ;FIXME: How could it be nil?
4294 (progn (erc-display-message parsed nil buffers s) t)
4295 nil)))
4297 (defun erc-echo-notice-in-first-user-buffer (s parsed _buffer sender)
4298 "Echos a private notice in one of the buffers for which SENDER
4299 is a member. This function is designed to be added to either
4300 `erc-echo-notice-hook' or `erc-echo-notice-always-hook', and
4301 returns non-nil if there is at least one buffer for which the
4302 sender is a member.
4304 See also: `erc-echo-notice-in-user-buffers',
4305 `erc-buffer-list-with-nick'."
4306 (let ((buffers (erc-buffer-list-with-nick sender erc-server-process)))
4307 (if buffers
4308 (progn (erc-display-message parsed nil (car buffers) s) t)
4309 nil)))
4311 ;;; Ban manipulation
4313 (defun erc-banlist-store (proc parsed)
4314 "Record ban entries for a channel."
4315 (pcase-let ((`(,channel ,mask ,whoset)
4316 (cdr (erc-response.command-args parsed))))
4317 ;; Determine to which buffer the message corresponds
4318 (let ((buffer (erc-get-buffer channel proc)))
4319 (with-current-buffer buffer
4320 (unless (member (cons whoset mask) erc-channel-banlist)
4321 (setq erc-channel-banlist (cons (cons whoset mask)
4322 erc-channel-banlist))))))
4323 nil)
4325 (defun erc-banlist-finished (proc parsed)
4326 "Record that we have received the banlist."
4327 (let* ((channel (nth 1 (erc-response.command-args parsed)))
4328 (buffer (erc-get-buffer channel proc)))
4329 (with-current-buffer buffer
4330 (put 'erc-channel-banlist 'received-from-server t)))
4331 t) ; suppress the 'end of banlist' message
4333 (defun erc-banlist-update (proc parsed)
4334 "Check MODE commands for bans and update the banlist appropriately."
4335 ;; FIXME: Possibly incorrect. -- Lawrence 2004-05-11
4336 (let* ((tgt (car (erc-response.command-args parsed)))
4337 (mode (erc-response.contents parsed))
4338 (whoset (erc-response.sender parsed))
4339 (buffer (erc-get-buffer tgt proc)))
4340 (when buffer
4341 (with-current-buffer buffer
4342 (cond ((not (get 'erc-channel-banlist 'received-from-server)) nil)
4344 ;; This is a ban
4345 (cond
4346 ((string-match "^-" mode)
4347 ;; Remove the unbanned masks from the ban list
4348 (setq erc-channel-banlist
4349 (erc-delete-if
4350 #'(lambda (y)
4351 (member (upcase (cdr y))
4352 (mapcar #'upcase
4353 (cdr (split-string mode)))))
4354 erc-channel-banlist)))
4355 ((string-match "^+" mode)
4356 ;; Add the banned mask(s) to the ban list
4357 (mapc
4358 (lambda (mask)
4359 (unless (member (cons whoset mask) erc-channel-banlist)
4360 (setq erc-channel-banlist
4361 (cons (cons whoset mask) erc-channel-banlist))))
4362 (cdr (split-string mode))))))))))
4363 nil)
4365 ;; used for the banlist cmds
4366 (defun erc-group-list (list n)
4367 "Group LIST into sublists of length N."
4368 (cond ((null list) nil)
4369 ((null (nthcdr n list)) (list list))
4370 (t (cons (erc-subseq list 0 n) (erc-group-list (nthcdr n list) n)))))
4373 ;;; MOTD numreplies
4375 (defun erc-handle-login ()
4376 "Handle the logging in process of connection."
4377 (unless erc-logged-in
4378 (setq erc-logged-in t)
4380 ;; execute a startup script
4381 (let ((f (erc-select-startup-file)))
4382 (when f
4383 (erc-load-script f)))))
4385 (defun erc-connection-established (proc parsed)
4386 "Run just after connection.
4388 Set user modes and run `erc-after-connect' hook."
4389 (with-current-buffer (process-buffer proc)
4390 (unless erc-server-connected ; only once per session
4391 (let ((server (or erc-server-announced-name
4392 (erc-response.sender parsed)))
4393 (nick (car (erc-response.command-args parsed)))
4394 (buffer (process-buffer proc)))
4395 (setq erc-server-connected t)
4396 (erc-update-mode-line)
4397 (erc-set-initial-user-mode nick buffer)
4398 (erc-server-setup-periodical-ping buffer)
4399 (run-hook-with-args 'erc-after-connect server nick)))))
4401 (defun erc-set-initial-user-mode (nick buffer)
4402 "If `erc-user-mode' is non-nil for NICK, set the user modes.
4403 The server buffer is given by BUFFER."
4404 (with-current-buffer buffer
4405 (when erc-user-mode
4406 (let ((mode (if (functionp erc-user-mode)
4407 (funcall erc-user-mode)
4408 erc-user-mode)))
4409 (when (stringp mode)
4410 (erc-log (format "changing mode for %s to %s" nick mode))
4411 (erc-server-send (format "MODE %s %s" nick mode)))))))
4413 (defun erc-display-error-notice (parsed string)
4414 "Display STRING as an error notice.
4416 See also `erc-display-message'."
4417 (erc-display-message
4418 parsed '(notice error) 'active string))
4420 (defun erc-process-ctcp-query (proc parsed nick login host)
4421 ;; FIXME: This needs a proper docstring -- Lawrence 2004-01-08
4422 "Process a CTCP query."
4423 (let ((queries (delete "" (split-string (erc-response.contents parsed)
4424 "\C-a"))))
4425 (if (> (length queries) 4)
4426 (erc-display-message
4427 parsed (list 'notice 'error) proc 'ctcp-too-many)
4428 (if (= 0 (length queries))
4429 (erc-display-message
4430 parsed (list 'notice 'error) proc
4431 'ctcp-empty ?n nick)
4432 (while queries
4433 (let* ((type (upcase (car (split-string (car queries)))))
4434 (hook (intern-soft (concat "erc-ctcp-query-" type "-hook"))))
4435 (if (and hook (boundp hook))
4436 (if (string-equal type "ACTION")
4437 (run-hook-with-args-until-success
4438 hook proc parsed nick login host
4439 (car (erc-response.command-args parsed))
4440 (car queries))
4441 (when erc-paranoid
4442 (if (erc-current-nick-p
4443 (car (erc-response.command-args parsed)))
4444 (erc-display-message
4445 parsed 'error 'active 'ctcp-request
4446 ?n nick ?u login ?h host ?r (car queries))
4447 (erc-display-message
4448 parsed 'error 'active 'ctcp-request-to
4449 ?n nick ?u login ?h host ?r (car queries)
4450 ?t (car (erc-response.command-args parsed)))))
4451 (run-hook-with-args-until-success
4452 hook proc nick login host
4453 (car (erc-response.command-args parsed))
4454 (car queries)))
4455 (erc-display-message
4456 parsed (list 'notice 'error) proc
4457 'undefined-ctcp)))
4458 (setq queries (cdr queries)))))))
4460 (defvar erc-ctcp-query-ACTION-hook '(erc-ctcp-query-ACTION))
4462 (defun erc-ctcp-query-ACTION (proc parsed nick login host to msg)
4463 "Respond to a CTCP ACTION query."
4465 (let ((s (match-string 1 msg))
4466 (buf (or (erc-get-buffer to proc)
4467 (erc-get-buffer nick proc)
4468 (process-buffer proc))))
4469 (erc-display-message
4470 parsed 'action buf
4471 'ACTION ?n nick ?u login ?h host ?a s))))
4473 (defvar erc-ctcp-query-CLIENTINFO-hook '(erc-ctcp-query-CLIENTINFO))
4475 (defun erc-ctcp-query-CLIENTINFO (_proc nick _login _host _to msg)
4476 "Respond to a CTCP CLIENTINFO query."
4478 (let ((s (erc-client-info (erc-trim-string (match-string 1 msg)))))
4479 (unless erc-disable-ctcp-replies
4480 (erc-send-ctcp-notice nick (format "CLIENTINFO %s" s)))))
4481 nil)
4483 (defvar erc-ctcp-query-ECHO-hook '(erc-ctcp-query-ECHO))
4484 (defun erc-ctcp-query-ECHO (_proc nick _login _host _to msg)
4485 "Respond to a CTCP ECHO query."
4487 (let ((s (match-string 1 msg)))
4488 (unless erc-disable-ctcp-replies
4489 (erc-send-ctcp-notice nick (format "ECHO %s" s)))))
4490 nil)
4492 (defvar erc-ctcp-query-FINGER-hook '(erc-ctcp-query-FINGER))
4493 (defun erc-ctcp-query-FINGER (_proc nick _login _host _to _msg)
4494 "Respond to a CTCP FINGER query."
4495 (unless erc-disable-ctcp-replies
4496 (let ((s (if erc-anonymous-login
4497 (format "FINGER I'm %s." (erc-current-nick))
4498 (format "FINGER %s (%s@%s)."
4499 (user-full-name)
4500 (user-login-name)
4501 (system-name))))
4502 (ns (erc-time-diff erc-server-last-sent-time (erc-current-time))))
4503 (when (> ns 0)
4504 (setq s (concat s " Idle for " (erc-sec-to-time ns))))
4505 (erc-send-ctcp-notice nick s)))
4506 nil)
4508 (defvar erc-ctcp-query-PING-hook '(erc-ctcp-query-PING))
4509 (defun erc-ctcp-query-PING (_proc nick _login _host _to msg)
4510 "Respond to a CTCP PING query."
4512 (unless erc-disable-ctcp-replies
4513 (let ((arg (match-string 1 msg)))
4514 (erc-send-ctcp-notice nick (format "PING %s" arg)))))
4515 nil)
4517 (defvar erc-ctcp-query-TIME-hook '(erc-ctcp-query-TIME))
4518 (defun erc-ctcp-query-TIME (_proc nick _login _host _to _msg)
4519 "Respond to a CTCP TIME query."
4520 (unless erc-disable-ctcp-replies
4521 (erc-send-ctcp-notice nick (format "TIME %s" (current-time-string))))
4522 nil)
4524 (defvar erc-ctcp-query-USERINFO-hook '(erc-ctcp-query-USERINFO))
4525 (defun erc-ctcp-query-USERINFO (_proc nick _login _host _to _msg)
4526 "Respond to a CTCP USERINFO query."
4527 (unless erc-disable-ctcp-replies
4528 (erc-send-ctcp-notice nick (format "USERINFO %s" erc-user-information)))
4529 nil)
4531 (defvar erc-ctcp-query-VERSION-hook '(erc-ctcp-query-VERSION))
4532 (defun erc-ctcp-query-VERSION (_proc nick _login _host _to _msg)
4533 "Respond to a CTCP VERSION query."
4534 (unless erc-disable-ctcp-replies
4535 (erc-send-ctcp-notice
4536 nick (format
4537 "VERSION \C-bERC\C-b %s - an IRC client for emacs (\C-b%s\C-b)"
4538 erc-version-string
4539 erc-official-location)))
4540 nil)
4542 (defun erc-process-ctcp-reply (proc parsed nick login host msg)
4543 "Process MSG as a CTCP reply."
4544 (let* ((type (car (split-string msg)))
4545 (hook (intern (concat "erc-ctcp-reply-" type "-hook"))))
4546 (if (boundp hook)
4547 (run-hook-with-args-until-success
4548 hook proc nick login host
4549 (car (erc-response.command-args parsed)) msg)
4550 (erc-display-message
4551 parsed 'notice 'active
4552 'CTCP-UNKNOWN ?n nick ?u login ?h host ?m msg))))
4554 (defvar erc-ctcp-reply-ECHO-hook '(erc-ctcp-reply-ECHO))
4555 (defun erc-ctcp-reply-ECHO (_proc nick _login _host _to msg)
4556 "Handle a CTCP ECHO reply."
4558 (let ((message (match-string 1 msg)))
4559 (erc-display-message
4560 nil '(notice action) 'active
4561 'CTCP-ECHO ?n nick ?m message)))
4562 nil)
4564 (defvar erc-ctcp-reply-CLIENTINFO-hook '(erc-ctcp-reply-CLIENTINFO))
4565 (defun erc-ctcp-reply-CLIENTINFO (_proc nick _login _host _to msg)
4566 "Handle a CTCP CLIENTINFO reply."
4568 (let ((message (match-string 1 msg)))
4569 (erc-display-message
4570 nil 'notice 'active
4571 'CTCP-CLIENTINFO ?n nick ?m message)))
4572 nil)
4574 (defvar erc-ctcp-reply-FINGER-hook '(erc-ctcp-reply-FINGER))
4575 (defun erc-ctcp-reply-FINGER (_proc nick _login _host _to msg)
4576 "Handle a CTCP FINGER reply."
4578 (let ((message (match-string 1 msg)))
4579 (erc-display-message
4580 nil 'notice 'active
4581 'CTCP-FINGER ?n nick ?m message)))
4582 nil)
4584 (defvar erc-ctcp-reply-PING-hook '(erc-ctcp-reply-PING))
4585 (defun erc-ctcp-reply-PING (_proc nick _login _host _to msg)
4586 "Handle a CTCP PING reply."
4588 nil
4589 (let ((time (match-string 1 msg)))
4590 (condition-case nil
4591 (let ((delta (erc-time-diff (string-to-number time)
4592 (erc-current-time))))
4593 (erc-display-message
4594 nil 'notice 'active
4595 'CTCP-PING ?n nick
4596 ?t (erc-sec-to-time delta)))
4597 (range-error
4598 (erc-display-message
4599 nil 'error 'active
4600 'bad-ping-response ?n nick ?t time))))))
4602 (defvar erc-ctcp-reply-TIME-hook '(erc-ctcp-reply-TIME))
4603 (defun erc-ctcp-reply-TIME (_proc nick _login _host _to msg)
4604 "Handle a CTCP TIME reply."
4606 (let ((message (match-string 1 msg)))
4607 (erc-display-message
4608 nil 'notice 'active
4609 'CTCP-TIME ?n nick ?m message)))
4610 nil)
4612 (defvar erc-ctcp-reply-VERSION-hook '(erc-ctcp-reply-VERSION))
4613 (defun erc-ctcp-reply-VERSION (_proc nick _login _host _to msg)
4614 "Handle a CTCP VERSION reply."
4616 (let ((message (match-string 1 msg)))
4617 (erc-display-message
4618 nil 'notice 'active
4619 'CTCP-VERSION ?n nick ?m message)))
4620 nil)
4622 (defun erc-process-away (proc away-p)
4623 "Toggle the away status of the user depending on the value of AWAY-P.
4625 If nil, set the user as away.
4626 If non-nil, return from being away."
4627 (let ((sessionbuf (process-buffer proc)))
4628 (when sessionbuf
4629 (with-current-buffer sessionbuf
4630 (when erc-away-nickname
4631 (erc-log (format "erc-process-away: away-nick: %s, away-p: %s"
4632 erc-away-nickname away-p))
4633 (erc-cmd-NICK (if away-p
4634 erc-away-nickname
4635 erc-nick)))
4636 (cond
4637 (away-p
4638 (setq erc-away (current-time)))
4639 (t
4640 (let ((away-time erc-away))
4641 ;; away must be set to NIL BEFORE sending anything to prevent
4642 ;; an infinite recursion
4643 (setq erc-away nil)
4644 (with-current-buffer (erc-active-buffer)
4645 (when erc-public-away-p
4646 (erc-send-action
4647 (erc-default-target)
4648 (if away-time
4649 (format "is back (gone for %s)"
4650 (erc-sec-to-time
4651 (erc-time-diff
4652 (erc-emacs-time-to-erc-time away-time)
4653 (erc-current-time))))
4654 "is back")))))))))
4655 (erc-update-mode-line)))
4657 ;;;; List of channel members handling
4659 (defun erc-channel-begin-receiving-names ()
4660 "Internal function.
4662 Used when a channel names list is about to be received. Should
4663 be called with the current buffer set to the channel buffer.
4665 See also `erc-channel-end-receiving-names'."
4666 (setq erc-channel-new-member-names (make-hash-table :test 'equal)))
4668 (defun erc-channel-end-receiving-names ()
4669 "Internal function.
4671 Used to fix `erc-channel-users' after a channel names list has been
4672 received. Should be called with the current buffer set to the
4673 channel buffer.
4675 See also `erc-channel-begin-receiving-names'."
4676 (maphash (lambda (nick _user)
4677 (if (null (gethash nick erc-channel-new-member-names))
4678 (erc-remove-channel-user nick)))
4679 erc-channel-users)
4680 (setq erc-channel-new-member-names nil))
4682 (defun erc-parse-prefix ()
4683 "Return an alist of valid prefix character types and their representations.
4684 Example: (operator) o => @, (voiced) v => +."
4685 (let ((str (or (cdr (assoc "PREFIX" (erc-with-server-buffer
4686 erc-server-parameters)))
4687 ;; provide a sane default
4688 "(ov)@+"))
4689 types chars)
4691 (setq types (match-string 1 str)
4692 chars (match-string 2 str))
4693 (let ((len (min (length types) (length chars)))
4694 (i 0)
4695 (alist nil))
4696 (while (< i len)
4697 (setq alist (cons (cons (elt types i) (elt chars i))
4698 alist))
4699 (setq i (1+ i)))
4700 alist))))
4702 (defun erc-channel-receive-names (names-string)
4703 "This function is for internal use only.
4705 Update `erc-channel-users' according to NAMES-STRING.
4706 NAMES-STRING is a string listing some of the names on the
4707 channel."
4708 (let (prefix op-ch voice-ch names name op voice)
4709 (setq prefix (erc-parse-prefix))
4710 (setq op-ch (cdr (assq ?o prefix))
4711 voice-ch (cdr (assq ?v prefix)))
4712 ;; We need to delete "" because in XEmacs, (split-string "a ")
4713 ;; returns ("a" "").
4714 (setq names (delete "" (split-string names-string)))
4715 (let ((erc-channel-members-changed-hook nil))
4716 (dolist (item names)
4717 (let ((updatep t))
4718 (if (rassq (elt item 0) prefix)
4719 (cond ((= (length item) 1)
4720 (setq updatep nil))
4721 ((eq (elt item 0) op-ch)
4722 (setq name (substring item 1)
4723 op 'on
4724 voice 'off))
4725 ((eq (elt item 0) voice-ch)
4726 (setq name (substring item 1)
4727 op 'off
4728 voice 'on))
4729 (t (setq name (substring item 1)
4730 op 'off
4731 voice 'off)))
4732 (setq name item
4733 op 'off
4734 voice 'off))
4735 (when updatep
4736 (puthash (erc-downcase name) t
4737 erc-channel-new-member-names)
4738 (erc-update-current-channel-member
4739 name name t op voice)))))
4740 (run-hooks 'erc-channel-members-changed-hook)))
4742 (defcustom erc-channel-members-changed-hook nil
4743 "This hook is called every time the variable `channel-members' changes.
4744 The buffer where the change happened is current while this hook is called."
4745 :group 'erc-hooks
4746 :type 'hook)
4748 (defun erc-update-user-nick (nick &optional new-nick
4749 host login full-name info)
4750 "Update the stored user information for the user with nickname NICK.
4752 See also: `erc-update-user'."
4753 (erc-update-user (erc-get-server-user nick) new-nick
4754 host login full-name info))
4756 (defun erc-update-user (user &optional new-nick
4757 host login full-name info)
4758 "Update user info for USER. USER must be an erc-server-user
4759 struct. Any of NEW-NICK, HOST, LOGIN, FULL-NAME, INFO which are
4760 non-nil and not equal to the existing values for USER are used to
4761 replace the stored values in USER.
4763 If, and only if, a change is made,
4764 `erc-channel-members-changed-hook' is run for each channel for
4765 which USER is a member, and t is returned."
4766 (let (changed)
4767 (when user
4768 (when (and new-nick
4769 (not (equal (erc-server-user-nickname user)
4770 new-nick)))
4771 (setq changed t)
4772 (erc-change-user-nickname user new-nick))
4773 (when (and host
4774 (not (equal (erc-server-user-host user) host)))
4775 (setq changed t)
4776 (setf (erc-server-user-host user) host))
4777 (when (and login
4778 (not (equal (erc-server-user-login user) login)))
4779 (setq changed t)
4780 (setf (erc-server-user-login user) login))
4781 (when (and full-name
4782 (not (equal (erc-server-user-full-name user)
4783 full-name)))
4784 (setq changed t)
4785 (setf (erc-server-user-full-name user) full-name))
4786 (when (and info
4787 (not (equal (erc-server-user-info user) info)))
4788 (setq changed t)
4789 (setf (erc-server-user-info user) info))
4790 (if changed
4791 (dolist (buf (erc-server-user-buffers user))
4792 (if (buffer-live-p buf)
4793 (with-current-buffer buf
4794 (run-hooks 'erc-channel-members-changed-hook))))))
4795 changed))
4797 (defun erc-update-current-channel-member
4798 (nick new-nick &optional add op voice host login full-name info
4799 update-message-time)
4800 "Update the stored user information for the user with nickname NICK.
4801 `erc-update-user' is called to handle changes to nickname,
4802 HOST, LOGIN, FULL-NAME, and INFO. If OP or VOICE are non-nil,
4803 they must be equal to either `on' or `off', in which case the
4804 operator or voice status of the user in the current channel is
4805 changed accordingly. If UPDATE-MESSAGE-TIME is non-nil, the
4806 last-message-time of the user in the current channel is set
4807 to (current-time).
4809 If ADD is non-nil, the user will be added with the specified
4810 information if it is not already present in the user or channel
4811 lists.
4813 If, and only if, changes are made, or the user is added,
4814 `erc-channel-members-updated-hook' is run, and t is returned.
4816 See also: `erc-update-user' and `erc-update-channel-member'."
4817 (let* (changed user-changed
4818 (channel-data (erc-get-channel-user nick))
4819 (cuser (cdr channel-data))
4820 (user (if channel-data (car channel-data)
4821 (erc-get-server-user nick))))
4822 (if cuser
4823 (progn
4824 (erc-log (format "update-member: user = %S, cuser = %S" user cuser))
4825 (when (and op
4826 (not (eq (erc-channel-user-op cuser) op)))
4827 (setq changed t)
4828 (setf (erc-channel-user-op cuser)
4829 (cond ((eq op 'on) t)
4830 ((eq op 'off) nil)
4831 (t op))))
4832 (when (and voice
4833 (not (eq (erc-channel-user-voice cuser) voice)))
4834 (setq changed t)
4835 (setf (erc-channel-user-voice cuser)
4836 (cond ((eq voice 'on) t)
4837 ((eq voice 'off) nil)
4838 (t voice))))
4839 (when update-message-time
4840 (setf (erc-channel-user-last-message-time cuser) (current-time)))
4841 (setq user-changed
4842 (erc-update-user user new-nick
4843 host login full-name info)))
4844 (when add
4845 (if (null user)
4846 (progn
4847 (setq user (make-erc-server-user
4848 :nickname nick
4849 :host host
4850 :full-name full-name
4851 :login login
4852 :info info
4853 :buffers (list (current-buffer))))
4854 (erc-add-server-user nick user))
4855 (setf (erc-server-user-buffers user)
4856 (cons (current-buffer)
4857 (erc-server-user-buffers user))))
4858 (setq cuser (make-erc-channel-user
4859 :op (cond ((eq op 'on) t)
4860 ((eq op 'off) nil)
4861 (t op))
4862 :voice (cond ((eq voice 'on) t)
4863 ((eq voice 'off) nil)
4864 (t voice))
4865 :last-message-time
4866 (if update-message-time (current-time))))
4867 (puthash (erc-downcase nick) (cons user cuser)
4868 erc-channel-users)
4869 (setq changed t)))
4870 (when (and changed (null user-changed))
4871 (run-hooks 'erc-channel-members-changed-hook))
4872 (or changed user-changed add)))
4874 (defun erc-update-channel-member (channel nick new-nick
4875 &optional add op voice host login
4876 full-name info update-message-time)
4877 "Update user and channel information for the user with
4878 nickname NICK in channel CHANNEL.
4880 See also: `erc-update-current-channel-member'."
4881 (erc-with-buffer
4882 (channel)
4883 (erc-update-current-channel-member nick new-nick add op voice host
4884 login full-name info
4885 update-message-time)))
4887 (defun erc-remove-current-channel-member (nick)
4888 "Remove NICK from current channel membership list.
4889 Runs `erc-channel-members-changed-hook'."
4890 (let ((channel-data (erc-get-channel-user nick)))
4891 (when channel-data
4892 (erc-remove-channel-user nick)
4893 (run-hooks 'erc-channel-members-changed-hook))))
4895 (defun erc-remove-channel-member (channel nick)
4896 "Remove NICK from CHANNEL's membership list.
4898 See also `erc-remove-current-channel-member'."
4899 (erc-with-buffer
4900 (channel)
4901 (erc-remove-current-channel-member nick)))
4903 (defun erc-update-channel-topic (channel topic &optional modify)
4904 "Find a buffer for CHANNEL and set the TOPIC for it.
4906 If optional MODIFY is 'append or 'prepend, then append or prepend the
4907 TOPIC string to the current topic."
4908 (erc-with-buffer (channel)
4909 (cond ((eq modify 'append)
4910 (setq erc-channel-topic (concat erc-channel-topic topic)))
4911 ((eq modify 'prepend)
4912 (setq erc-channel-topic (concat topic erc-channel-topic)))
4913 (t (setq erc-channel-topic topic)))
4914 (erc-update-mode-line-buffer (current-buffer))))
4916 (defun erc-set-modes (tgt mode-string)
4917 "Set the modes for the TGT provided as MODE-STRING."
4918 (let* ((modes (erc-parse-modes mode-string))
4919 (add-modes (nth 0 modes))
4920 ;; list of triples: (mode-char 'on/'off argument)
4921 (arg-modes (nth 2 modes)))
4922 (cond ((erc-channel-p tgt); channel modes
4923 (let ((buf (and erc-server-process
4924 (erc-get-buffer tgt erc-server-process))))
4925 (when buf
4926 (with-current-buffer buf
4927 (setq erc-channel-modes add-modes)
4928 (setq erc-channel-user-limit nil)
4929 (setq erc-channel-key nil)
4930 (while arg-modes
4931 (let ((mode (nth 0 (car arg-modes)))
4932 (onoff (nth 1 (car arg-modes)))
4933 (arg (nth 2 (car arg-modes))))
4934 (cond ((string-match "^[Ll]" mode)
4935 (erc-update-channel-limit tgt onoff arg))
4936 ((string-match "^[Kk]" mode)
4937 (erc-update-channel-key tgt onoff arg))
4938 (t nil)))
4939 (setq arg-modes (cdr arg-modes)))
4940 (erc-update-mode-line-buffer buf)))))
4941 ;; we do not keep our nick's modes yet
4942 ;;(t (setq erc-user-modes add-modes))
4943 )
4944 ))
4946 (defun erc-sort-strings (list-of-strings)
4947 "Sort LIST-OF-STRINGS in lexicographic order.
4949 Side-effect free."
4950 (sort (copy-sequence list-of-strings) 'string<))
4952 (defun erc-parse-modes (mode-string)
4953 "Parse MODE-STRING into a list.
4955 Returns a list of three elements:
4957 (ADD-MODES REMOVE-MODES ARG-MODES).
4959 The add-modes and remove-modes are lists of single-character strings
4960 for modes without parameters to add and remove respectively. The
4961 arg-modes is a list of triples of the form:
4963 (MODE-CHAR ON/OFF ARGUMENT)."
4965 (let ((chars (mapcar 'char-to-string (match-string 1 mode-string)))
4966 ;; arguments in channel modes
4967 (args-str (match-string 2 mode-string))
4968 (args nil)
4969 (add-modes nil)
4970 (remove-modes nil)
4971 (arg-modes nil); list of triples: (mode-char 'on/'off argument)
4972 (add-p t))
4973 ;; make the argument list
4975 (setq args (cons (match-string 1 args-str) args))
4976 (setq args-str (match-string 2 args-str)))
4977 (setq args (nreverse args))
4978 ;; collect what modes changed, and match them with arguments
4979 (while chars
4980 (cond ((string= (car chars) "+") (setq add-p t))
4981 ((string= (car chars) "-") (setq add-p nil))
4982 ((string-match "^[ovbOVB]" (car chars))
4983 (setq arg-modes (cons (list (car chars)
4984 (if add-p 'on 'off)
4985 (if args (car args) nil))
4986 arg-modes))
4987 (if args (setq args (cdr args))))
4988 ((string-match "^[LlKk]" (car chars))
4989 (setq arg-modes (cons (list (car chars)
4990 (if add-p 'on 'off)
4991 (if (and add-p args)
4992 (car args) nil))
4993 arg-modes))
4994 (if (and add-p args) (setq args (cdr args))))
4995 (add-p (setq add-modes (cons (car chars) add-modes)))
4996 (t (setq remove-modes (cons (car chars) remove-modes))))
4997 (setq chars (cdr chars)))
4998 (setq add-modes (nreverse add-modes))
4999 (setq remove-modes (nreverse remove-modes))
5000 (setq arg-modes (nreverse arg-modes))
5001 (list add-modes remove-modes arg-modes))
5002 nil))
5004 (defun erc-update-modes (tgt mode-string &optional nick host login)
5005 "Update the mode information for TGT, provided as MODE-STRING.
5006 Optional arguments: NICK, HOST and LOGIN - the attributes of the
5007 person who changed the modes."
5008 ;; FIXME: neither of nick, host, and login are used!
5009 (let* ((modes (erc-parse-modes mode-string))
5010 (add-modes (nth 0 modes))
5011 (remove-modes (nth 1 modes))
5012 ;; list of triples: (mode-char 'on/'off argument)
5013 (arg-modes (nth 2 modes)))
5014 ;; now parse the modes changes and do the updates
5015 (cond ((erc-channel-p tgt); channel modes
5016 (let ((buf (and erc-server-process
5017 (erc-get-buffer tgt erc-server-process))))
5018 (when buf
5019 ;; FIXME! This used to have an original buffer
5020 ;; variable, but it never switched back to the original
5021 ;; buffer. Is this wanted behavior?
5022 (set-buffer buf)
5023 (if (not (boundp 'erc-channel-modes))
5024 (setq erc-channel-modes nil))
5025 (while remove-modes
5026 (setq erc-channel-modes (delete (car remove-modes)
5027 erc-channel-modes)
5028 remove-modes (cdr remove-modes)))
5029 (while add-modes
5030 (setq erc-channel-modes (cons (car add-modes)
5031 erc-channel-modes)
5032 add-modes (cdr add-modes)))
5033 (setq erc-channel-modes (erc-sort-strings erc-channel-modes))
5034 (while arg-modes
5035 (let ((mode (nth 0 (car arg-modes)))
5036 (onoff (nth 1 (car arg-modes)))
5037 (arg (nth 2 (car arg-modes))))
5038 (cond ((string-match "^[oO]" mode)
5039 (erc-update-channel-member tgt arg arg nil onoff))
5040 ((string-match "^[Vv]" mode)
5041 (erc-update-channel-member tgt arg arg nil nil
5042 onoff))
5043 ((string-match "^[Ll]" mode)
5044 (erc-update-channel-limit tgt onoff arg))
5045 ((string-match "^[Kk]" mode)
5046 (erc-update-channel-key tgt onoff arg))
5047 (t nil)); only ops are tracked now
5048 (setq arg-modes (cdr arg-modes))))
5049 (erc-update-mode-line buf))))
5050 ;; nick modes - ignored at this point
5051 (t nil))))
5053 (defun erc-update-channel-limit (channel onoff n)
5054 ;; FIXME: what does ONOFF actually do? -- Lawrence 2004-01-08
5055 "Update CHANNEL's user limit to N."
5056 (if (or (not (eq onoff 'on))
5057 (and (stringp n) (string-match "^[0-9]+$" n)))
5058 (erc-with-buffer
5059 (channel)
5060 (cond ((eq onoff 'on) (setq erc-channel-user-limit (string-to-number n)))
5061 (t (setq erc-channel-user-limit nil))))))
5063 (defun erc-update-channel-key (channel onoff key)
5064 "Update CHANNEL's key to KEY if ONOFF is 'on or to nil if it's 'off."
5065 (erc-with-buffer
5066 (channel)
5067 (cond ((eq onoff 'on) (setq erc-channel-key key))
5068 (t (setq erc-channel-key nil)))))
5070 (defun erc-handle-user-status-change (type nlh &optional l)
5071 "Handle changes in any user's status.
5073 So far, only nick change is handled.
5075 Generally, the TYPE argument is a symbol describing the change type, NLH is
5076 a list containing the original nickname, login name and hostname for the user,
5077 and L is a list containing additional TYPE-specific arguments.
5079 So far the following TYPE/L pairs are supported:
5081 Event TYPE L
5083 nickname change 'nick (NEW-NICK)"
5084 (erc-log (format "user-change: type: %S nlh: %S l: %S" type nlh l))
5085 (cond
5086 ;; nickname change
5087 ((equal type 'nick)
5088 t)
5089 (t
5090 nil)))
5092 (defun erc-highlight-notice (s)
5093 "Highlight notice message S and return it.
5094 See also variable `erc-notice-highlight-type'."
5095 (cond
5096 ((eq erc-notice-highlight-type 'prefix)
5097 (erc-put-text-property 0 (length erc-notice-prefix)
5098 'face 'erc-notice-face s)
5099 s)
5100 ((eq erc-notice-highlight-type 'all)
5101 (erc-put-text-property 0 (length s) 'face 'erc-notice-face s)
5102 s)
5103 (t s)))
5105 (defun erc-make-notice (message)
5106 "Notify the user of MESSAGE."
5107 (when erc-minibuffer-notice
5108 (message "%s" message))
5109 (erc-highlight-notice (concat erc-notice-prefix message)))
5111 (defun erc-highlight-error (s)
5112 "Highlight error message S and return it."
5113 (erc-put-text-property 0 (length s) 'face 'erc-error-face s)
5114 s)
5116 (defun erc-put-text-property (start end property value &optional object)
5117 "Set text-property for an object (usually a string).
5118 START and END define the characters covered.
5119 PROPERTY is the text-property set, usually the symbol `face'.
5120 VALUE is the value for the text-property, usually a face symbol such as
5121 the face `bold' or `erc-pal-face'.
5122 OBJECT is a string which will be modified and returned.
5123 OBJECT is modified without being copied first.
5125 You can redefine or `defadvice' this function in order to add
5126 EmacsSpeak support."
5127 (put-text-property start end property value object))
5129 (defun erc-list (thing)
5130 "Return THING if THING is a list, or a list with THING as its element."
5131 (if (listp thing)
5132 thing
5133 (list thing)))
5135 (defun erc-parse-user (string)
5136 "Parse STRING as a user specification (nick!login@host).
5138 Return a list of the three separate tokens."
5139 (cond
5141 (list (match-string 1 string)
5142 (match-string 2 string)
5143 (match-string 3 string)))
5144 ;; Some bogus bouncers send Nick!(null), try to live with that.
5146 (list (match-string 1 string)
5147 ""
5148 (match-string 2 string)))
5149 (t
5150 (list string "" ""))))
5152 (defun erc-extract-nick (string)
5153 "Return the nick corresponding to a user specification STRING.
5155 See also `erc-parse-user'."
5156 (car (erc-parse-user string)))
5158 (defun erc-put-text-properties (start end properties
5159 &optional object value-list)
5160 "Set text-properties for OBJECT.
5162 START and END describe positions in OBJECT.
5163 If VALUE-LIST is nil, set each property in PROPERTIES to t, else set
5164 each property to the corresponding value in VALUE-LIST."
5165 (unless value-list
5166 (setq value-list (mapcar (lambda (_x) t)
5167 properties)))
5168 (while (and properties value-list)
5169 (erc-put-text-property
5170 start end (pop properties) (pop value-list) object)))
5172 ;;; Input area handling:
5174 (defun erc-beg-of-input-line ()
5175 "Return the value of `point' at the beginning of the input line.
5177 Specifically, return the position of `erc-insert-marker'."
5178 (or (and (boundp 'erc-insert-marker)
5179 (markerp erc-insert-marker))
5180 (error "erc-insert-marker has no value, please report a bug"))
5181 (marker-position erc-insert-marker))
5183 (defun erc-end-of-input-line ()
5184 "Return the value of `point' at the end of the input line."
5185 (point-max))
5187 (defvar erc-last-input-time 0
5188 "Time of last call to `erc-send-current-line'.
5189 If that function has never been called, the value is 0.")
5191 (defcustom erc-accidental-paste-threshold-seconds nil
5192 "Minimum time, in seconds, before sending new lines via IRC.
5193 If the value is a number, `erc-send-current-line' signals an error
5194 if its previous invocation was fewer than this many seconds ago.
5195 This is useful so that if you accidentally enter large amounts of text
5196 into the ERC buffer, that text is not sent to the IRC server.
5198 If the value is nil, `erc-send-current-line' always considers any
5199 submitted line to be intentional."
5200 :group 'erc
5201 :version "24.4"
5202 :type '(choice number (other :tag "disabled" nil)))
5204 (defun erc-send-current-line ()
5205 "Parse current line and send it to IRC."
5206 (interactive)
5207 (let ((now (float-time)))
5208 (if (or (not erc-accidental-paste-threshold-seconds)
5209 (< erc-accidental-paste-threshold-seconds
5210 (- now erc-last-input-time)))
5211 (save-restriction
5212 (widen)
5213 (if (< (point) (erc-beg-of-input-line))
5214 (erc-error "Point is not in the input area")
5215 (let ((inhibit-read-only t)
5216 (str (erc-user-input))
5217 (old-buf (current-buffer)))
5218 (if (and (not (erc-server-buffer-live-p))
5219 (not (erc-command-no-process-p str)))
5220 (erc-error "ERC: No process running")
5221 (erc-set-active-buffer (current-buffer))
5222 ;; Kill the input and the prompt
5223 (delete-region (erc-beg-of-input-line)
5224 (erc-end-of-input-line))
5225 (unwind-protect
5226 (erc-send-input str)
5227 ;; Fix the buffer if the command didn't kill it
5228 (when (buffer-live-p old-buf)
5229 (with-current-buffer old-buf
5230 (save-restriction
5231 (widen)
5232 (goto-char (point-max))
5233 (when (processp erc-server-process)
5234 (set-marker (process-mark erc-server-process) (point)))
5235 (set-marker erc-insert-marker (point))
5236 (let ((buffer-modified (buffer-modified-p)))
5237 (erc-display-prompt)
5238 (set-buffer-modified-p buffer-modified))))))
5240 ;; Only when last hook has been run...
5241 (run-hook-with-args 'erc-send-completed-hook str))))
5242 (setq erc-last-input-time now))
5243 (switch-to-buffer "*ERC Accidental Paste Overflow*")
5244 (lwarn 'erc :warning
5245 "You seem to have accidentally pasted some text!"))))
5247 (defun erc-user-input ()
5248 "Return the input of the user in the current buffer."
5249 (buffer-substring-no-properties
5250 erc-input-marker
5251 (erc-end-of-input-line)))
5254 "Regular expression used for matching commands in ERC.")
5256 (defun erc-send-input (input)
5257 "Treat INPUT as typed in by the user. It is assumed that the input
5258 and the prompt is already deleted.
5259 This returns non-nil only if we actually send anything."
5260 ;; Handle different kinds of inputs
5261 (cond
5262 ;; Ignore empty input
5263 ((if erc-send-whitespace-lines
5264 (string= input "")
5266 (when erc-warn-about-blank-lines
5267 (message "Blank line - ignoring...")
5268 (beep))
5269 nil)
5270 (t
5271 (let ((str input)
5272 (erc-insert-this t))
5273 (setq erc-send-this t)
5274 (run-hook-with-args 'erc-send-pre-hook input)
5275 (when erc-send-this
5277 (not (string-match erc-command-regexp str)))
5278 (mapc
5279 (lambda (line)
5280 (mapc
5281 (lambda (line)
5282 ;; Insert what has to be inserted for this.
5283 (erc-display-msg line)
5285 (null erc-flood-protect) t))
5286 (or (and erc-flood-protect (erc-split-line line))
5287 (list line))))
5289 ;; Insert the prompt along with the command.
5290 (erc-display-command str)
5292 t)))))
5294 (defun erc-display-command (line)
5295 (when erc-insert-this
5296 (let ((insert-position (point)))
5297 (unless erc-hide-prompt
5298 (erc-display-prompt nil nil (erc-command-indicator)
5299 (and (erc-command-indicator)
5300 'erc-command-indicator-face)))
5301 (let ((beg (point)))
5302 (insert line)
5303 (erc-put-text-property beg (point)
5304 'face 'erc-command-indicator-face)
5306 (when (processp erc-server-process)
5307 (set-marker (process-mark erc-server-process) (point)))
5308 (set-marker erc-insert-marker (point))
5309 (save-excursion
5310 (save-restriction
5311 (narrow-to-region insert-position (point))
5312 (run-hooks 'erc-send-modify-hook)
5313 (run-hooks 'erc-send-post-hook))))))
5315 (defun erc-display-msg (line)
5316 "Display LINE as a message of the user to the current target at the
5317 current position."
5318 (when erc-insert-this
5319 (let ((insert-position (point)))
5320 (insert (erc-format-my-nick))
5321 (let ((beg (point)))
5322 (insert line)
5323 (erc-put-text-property beg (point)
5324 'face 'erc-input-face))
5326 (when (processp erc-server-process)
5327 (set-marker (process-mark erc-server-process) (point)))
5328 (set-marker erc-insert-marker (point))
5329 (save-excursion
5330 (save-restriction
5331 (narrow-to-region insert-position (point))
5332 (run-hooks 'erc-send-modify-hook)
5333 (run-hooks 'erc-send-post-hook))))))
5335 (defun erc-command-symbol (command)
5336 "Return the ERC command symbol for COMMAND if it exists and is bound."
5337 (let ((cmd (intern-soft (format "erc-cmd-%s" (upcase command)))))
5338 (when (fboundp cmd) cmd)))
5340 (defun erc-extract-command-from-line (line)
5341 "Extract command and args from the input LINE.
5342 If no command was given, return nil. If command matches, return a
5343 list of the form: (command args) where both elements are strings."
5344 (when (string-match erc-command-regexp line)
5345 (let* ((cmd (erc-command-symbol (match-string 1 line)))
5346 ;; note: return is nil, we apply this simply for side effects
5347 (_canon-defun (while (and cmd (symbolp (symbol-function cmd)))
5348 (setq cmd (symbol-function cmd))))
5349 (cmd-fun (or cmd #'erc-cmd-default))
5350 (arg (if cmd
5351 (if (get cmd-fun 'do-not-parse-args)
5352 (format "%s" (match-string 2 line))
5353 (delete "" (split-string (erc-trim-string
5354 (match-string 2 line)) " ")))
5355 line)))
5356 (list cmd-fun arg))))
5358 (defun erc-split-multiline-safe (string)
5359 "Split STRING, containing multiple lines and return them in a list.
5360 Do it only for STRING as the complete input, do not carry unfinished
5361 strings over to the next call."
5362 (let ((l ())
5363 (i0 0)
5364 (doit t))
5365 (while doit
5367 (s (substring string i0)))
5368 (cond (i (setq l (cons (substring string i0 i) l))
5369 (setq i0 (match-end 0)))
5370 ((> (length s) 0)
5371 (setq l (cons s l))(setq doit nil))
5372 (t (setq doit nil)))))
5373 (nreverse l)))
5375 ;; nick handling
5377 (defun erc-set-current-nick (nick)
5378 "Set the current nickname to NICK."
5379 (with-current-buffer (if (buffer-live-p (erc-server-buffer))
5380 (erc-server-buffer)
5381 (current-buffer))
5382 (setq erc-server-current-nick nick)))
5384 (defun erc-current-nick ()
5385 "Return the current nickname."
5386 (with-current-buffer (if (buffer-live-p (erc-server-buffer))
5387 (erc-server-buffer)
5388 (current-buffer))
5389 erc-server-current-nick))
5391 (defun erc-current-nick-p (nick)
5392 "Return non-nil if NICK is the current nickname."
5393 (erc-nick-equal-p nick (erc-current-nick)))
5395 (defun erc-nick-equal-p (nick1 nick2)
5396 "Return non-nil if NICK1 and NICK2 are the same.
5398 This matches strings according to the IRC protocol's case convention.
5400 See also `erc-downcase'."
5401 (string= (erc-downcase nick1)
5402 (erc-downcase nick2)))
5404 ;; default target handling
5406 (defun erc-default-target ()
5407 "Return the current default target (as a character string) or nil if none."
5408 (let ((tgt (car erc-default-recipients)))
5409 (cond
5410 ((not tgt) nil)
5411 ((listp tgt) (cdr tgt))
5412 (t tgt))))
5414 (defun erc-add-default-channel (channel)
5415 "Add CHANNEL to the default channel list."
5416 (let ((chl (downcase channel)))
5417 (setq erc-default-recipients
5418 (cons chl erc-default-recipients))))
5420 (defun erc-delete-default-channel (channel &optional buffer)
5421 "Delete CHANNEL from the default channel list."
5422 (with-current-buffer (if (and buffer
5423 (bufferp buffer))
5424 buffer
5425 (current-buffer))
5426 (setq erc-default-recipients (delete (downcase channel)
5427 erc-default-recipients))))
5429 (defun erc-add-query (nickname)
5430 "Add QUERY'd NICKNAME to the default channel list.
5432 The previous default target of QUERY type gets removed."
5433 (let ((d1 (car erc-default-recipients))
5434 (d2 (cdr erc-default-recipients))
5435 (qt (cons 'QUERY (downcase nickname))))
5436 (setq erc-default-recipients (cons qt (if (and (listp d1)
5437 (eq (car d1) 'QUERY))
5438 d2
5439 erc-default-recipients)))))
5441 (defun erc-delete-query ()
5442 "Delete the topmost target if it is a QUERY."
5444 (let ((d1 (car erc-default-recipients))
5445 (d2 (cdr erc-default-recipients)))
5446 (if (and (listp d1)
5447 (eq (car d1) 'QUERY))
5448 (setq erc-default-recipients d2)
5449 (error "Current target is not a QUERY"))))
5451 (defun erc-ignored-user-p (spec)
5452 "Return non-nil if SPEC matches something in `erc-ignore-list'.
5455 matches against all the regexp's in `erc-ignore-list'. If any
5456 match, returns that regexp."
5457 (catch 'found
5458 (dolist (ignored (erc-with-server-buffer erc-ignore-list))
5459 (if (string-match ignored spec)
5460 (throw 'found ignored)))))
5462 (defun erc-ignored-reply-p (msg tgt proc)
5463 ;; FIXME: this docstring needs fixing -- Lawrence 2004-01-08
5464 "Return non-nil if MSG matches something in `erc-ignore-reply-list'.
5466 Takes a message MSG to a channel and returns non-nil if the addressed
5467 user matches any regexp in `erc-ignore-reply-list'."
5468 (let ((target-nick (erc-message-target msg)))
5469 (if (not target-nick)
5470 nil
5471 (erc-with-buffer (tgt proc)
5472 (let ((user (erc-get-server-user target-nick)))
5473 (when user
5474 (erc-list-match erc-ignore-reply-list
5475 (erc-user-spec user))))))))
5477 (defun erc-message-target (msg)
5478 "Return the addressed target in MSG.
5480 The addressed target is the string before the first colon in MSG."
5482 (match-string 1 msg)
5483 nil))
5485 (defun erc-user-spec (user)
5486 "Create a nick!user@host spec from a user struct."
5487 (let ((nick (erc-server-user-nickname user))
5488 (host (erc-server-user-host user))
5489 (login (erc-server-user-login user)))
5490 (concat (or nick "")
5491 "!"
5492 (or login "")
5493 "@"
5494 (or host ""))))
5496 (defun erc-list-match (lst str)
5497 "Return non-nil if any regexp in LST matches STR."
5498 (memq nil (mapcar (lambda (regexp)
5499 (not (string-match regexp str)))
5500 lst)))
5502 ;; other "toggles"
5504 (defun erc-toggle-ctcp-autoresponse (&optional arg)
5505 "Toggle automatic CTCP replies (like VERSION and PING).
5507 If ARG is positive, turns CTCP replies on.
5509 If ARG is non-nil and not positive, turns CTCP replies off."
5510 (interactive "P")
5511 (cond ((and (numberp arg) (> arg 0))
5512 (setq erc-disable-ctcp-replies t))
5513 (arg (setq erc-disable-ctcp-replies nil))
5514 (t (setq erc-disable-ctcp-replies (not erc-disable-ctcp-replies))))
5515 (message "ERC CTCP replies are %s" (if erc-disable-ctcp-replies "OFF" "ON")))
5517 (defun erc-toggle-flood-control (&optional arg)
5518 "Toggle use of flood control on sent messages.
5520 If ARG is positive, use flood control.
5521 If ARG is non-nil and not positive, do not use flood control.
5523 See `erc-server-flood-margin' for an explanation of the available
5524 flood control parameters."
5525 (interactive "P")
5526 (cond ((and (numberp arg) (> arg 0))
5527 (setq erc-flood-protect t))
5528 (arg (setq erc-flood-protect nil))
5529 (t (setq erc-flood-protect (not erc-flood-protect))))
5530 (message "ERC flood control is %s"
5531 (cond (erc-flood-protect "ON")
5532 (t "OFF"))))
5534 ;; Some useful channel and nick commands for fast key bindings
5536 (defun erc-invite-only-mode (&optional arg)
5537 "Turn on the invite only mode (+i) for the current channel.
5539 If ARG is non-nil, turn this mode off (-i).
5541 This command is sent even if excess flood is detected."
5542 (interactive "P")
5543 (erc-set-active-buffer (current-buffer))
5544 (let ((tgt (erc-default-target)))
5545 (cond ((or (not tgt) (not (erc-channel-p tgt)))
5546 (erc-display-message nil 'error (current-buffer) 'no-target))
5547 (arg (erc-load-irc-script-lines (list (concat "/mode " tgt " -i"))
5548 t))
5549 (t (erc-load-irc-script-lines (list (concat "/mode " tgt " +i"))
5550 t)))))
5552 (defun erc-get-channel-mode-from-keypress (key)
5553 "Read a key sequence and call the corresponding channel mode function.
5554 After doing C-c C-o, type in a channel mode letter.
5556 C-g means quit.
5557 RET lets you type more than one mode at a time.
5560 Anything else will be sent to `erc-toggle-channel-mode'."
5561 (interactive "kChannel mode (RET to set more than one): ")
5562 (when (featurep 'xemacs)
5563 (setq key (char-to-string (event-to-character (aref key 0)))))
5564 (cond ((equal key "\C-g")
5565 (keyboard-quit))
5566 ((equal key "\C-m")
5567 (erc-insert-mode-command))
5568 ((equal key "l")
5569 (call-interactively 'erc-set-channel-limit))
5570 ((equal key "k")
5571 (call-interactively 'erc-set-channel-key))
5572 (t (erc-toggle-channel-mode key))))
5574 (defun erc-toggle-channel-mode (mode &optional channel)
5575 "Toggle channel MODE.
5577 If CHANNEL is non-nil, toggle MODE for that channel, otherwise use
5578 `erc-default-target'."
5579 (interactive "P")
5580 (erc-set-active-buffer (current-buffer))
5581 (let ((tgt (or channel (erc-default-target))))
5582 (cond ((or (null tgt) (null (erc-channel-p tgt)))
5583 (erc-display-message nil 'error 'active 'no-target))
5584 ((member mode erc-channel-modes)
5585 (erc-log (format "%s: Toggle mode %s OFF" tgt mode))
5586 (message "Toggle channel mode %s OFF" mode)
5587 (erc-server-send (format "MODE %s -%s" tgt mode)))
5588 (t (erc-log (format "%s: Toggle channel mode %s ON" tgt mode))
5589 (message "Toggle channel mode %s ON" mode)
5590 (erc-server-send (format "MODE %s +%s" tgt mode))))))
5592 (defun erc-insert-mode-command ()
5594 (interactive)
5595 (let ((tgt (erc-default-target)))
5596 (if tgt (insert (concat "/mode " tgt " "))
5597 (erc-display-message nil 'error (current-buffer) 'no-target))))
5599 (defun erc-channel-names ()
5601 (interactive)
5602 (erc-set-active-buffer (current-buffer))
5603 (let ((tgt (erc-default-target)))
5604 (if tgt (erc-load-irc-script-lines (list (concat "/names " tgt)))
5605 (erc-display-message nil 'error (current-buffer) 'no-target))))
5607 (defun erc-remove-text-properties-region (start end &optional object)
5608 "Clears the region (START,END) in OBJECT from all colors, etc."
5609 (interactive "r")
5610 (save-excursion
5611 (let ((inhibit-read-only t))
5612 (set-text-properties start end nil object))))
5613 (put 'erc-remove-text-properties-region 'disabled t)
5615 ;; script execution and startup
5617 (defun erc-find-file (file &optional path)
5618 "Search for a FILE in the filesystem.
5619 First the `default-directory' is searched for FILE, then any directories
5620 specified in the list PATH.
5622 If FILE is found, return the path to it."
5623 (let ((filepath file))
5624 (if (file-readable-p filepath) filepath
5625 (while (and path
5626 (progn (setq filepath (expand-file-name file (car path)))
5627 (not (file-readable-p filepath))))
5628 (setq path (cdr path)))
5629 (if path filepath nil))))
5631 (defun erc-select-startup-file ()
5632 "Select an ERC startup file.
5633 See also `erc-startup-file-list'."
5634 (catch 'found
5635 (dolist (f erc-startup-file-list)
5636 (setq f (convert-standard-filename f))
5637 (when (file-readable-p f)
5638 (throw 'found f)))))
5640 (defun erc-find-script-file (file)
5641 "Search for FILE in `default-directory', and any in `erc-script-path'."
5642 (erc-find-file file erc-script-path))
5644 (defun erc-load-script (file)
5645 "Load a script from FILE.
5647 FILE must be the full name, it is not searched in the
5648 `erc-script-path'. If the filename ends with `.el', then load it
5649 as an Emacs Lisp program. Otherwise, treat it as a regular IRC
5650 script."
5651 (erc-log (concat "erc-load-script: " file))
5652 (cond
5654 (load file))
5655 (t
5656 (erc-load-irc-script file))))
5658 (defun erc-process-script-line (line &optional args)
5659 "Process an IRC script LINE.
5661 Does script-specific substitutions (script arguments, current nick,
5662 server, etc.) in LINE and returns it.
5664 Substitutions are: %C and %c = current target (channel or nick),
5665 %S %s = current server, %N %n = my current nick, and %x is x verbatim,
5666 where x is any other character;
5667 $* = the entire argument string, $1 = the first argument, $2 = the second,
5668 and so on."
5669 (if (not args) (setq args ""))
5673 (tgt (erc-default-target))
5674 (server (and (boundp 'erc-session-server) erc-session-server))
5675 (nick (erc-current-nick))
5676 (res "")
5677 (tmp nil)
5678 (arg-list nil)
5679 (arg-num 0))
5680 (if (not tgt) (setq tgt ""))
5681 (if (not server) (setq server ""))
5682 (if (not nick) (setq nick ""))
5683 ;; First, compute the argument list
5684 (setq tmp args)
5686 (setq arg-list (cons (match-string 1 tmp) arg-list))
5687 (setq tmp (match-string 2 tmp)))
5688 (setq arg-list (nreverse arg-list))
5689 (setq arg-num (length arg-list))
5690 ;; now do the substitution
5691 (setq tmp (string-match esc-regexp line))
5692 (while tmp
5693 ;;(message "beginning of while: tmp=%S" tmp)
5694 (let* ((hd (substring line 0 tmp))
5695 (esc "")
5696 (subst "")
5697 (tail (substring line tmp)))
5698 (cond ((string-match (concat "^" arg-esc-regexp) tail)
5699 (setq esc (match-string 1 tail))
5700 (setq tail (substring tail (match-end 1))))
5701 ((string-match (concat "^" percent-regexp) tail)
5702 (setq esc (match-string 1 tail))
5703 (setq tail (substring tail (match-end 1)))))
5704 ;;(message "hd=%S, esc=%S, tail=%S, arg-num=%S" hd esc tail arg-num)
5705 (setq res (concat res hd))
5706 (setq subst
5707 (cond ((string= esc "") "")
5710 (let ((n (string-to-number (match-string 1 esc))))
5711 (message "n = %S, integerp(n)=%S" n (integerp n))
5712 (if (<= n arg-num) (nth (1- n) arg-list) "")))
5713 ((string-match "^%[Cc]$" esc) tgt)
5714 ((string-match "^%[Ss]$" esc) server)
5715 ((string-match "^%[Nn]$" esc) nick)
5718 (message "BUG IN ERC: esc=%S" esc)
5719 "")))
5720 (setq line tail)
5721 (setq tmp (string-match esc-regexp line))
5722 (setq res (concat res subst))
5723 ;;(message "end of while: line=%S, res=%S, tmp=%S" line res tmp)
5724 ))
5725 (setq res (concat res line))
5726 res))
5728 (defun erc-load-irc-script (file &optional force)
5729 "Load an IRC script from FILE."
5730 (erc-log (concat "erc-load-script: " file))
5731 (let ((str (with-temp-buffer
5732 (insert-file-contents file)
5733 (buffer-string))))
5734 (erc-load-irc-script-lines (erc-split-multiline-safe str) force)))
5736 (defun erc-load-irc-script-lines (lines &optional force noexpand)
5737 "Load IRC script LINES (a list of strings).
5739 If optional NOEXPAND is non-nil, do not expand script-specific
5740 sequences, process the lines verbatim. Use this for multiline
5741 user input."
5742 (let* ((cb (current-buffer))
5743 (s "")
5744 (sp (or (erc-command-indicator) (erc-prompt)))
5745 (args (and (boundp 'erc-script-args) erc-script-args)))
5746 (if (and args (string-match "^ " args))
5747 (setq args (substring args 1)))
5748 ;; prepare the prompt string for echo
5749 (erc-put-text-property 0 (length sp)
5750 'face 'erc-command-indicator-face sp)
5751 (while lines
5752 (setq s (car lines))
5753 (erc-log (concat "erc-load-script: CMD: " s))
5755 (let ((line (if noexpand s (erc-process-script-line s args))))
5756 (if (and (erc-process-input-line line force)
5757 erc-script-echo)
5758 (progn
5759 (erc-put-text-property 0 (length line)
5760 'face 'erc-input-face line)
5761 (erc-display-line (concat sp line) cb)))))
5762 (setq lines (cdr lines)))))
5764 ;; authentication
5766 (defun erc-login ()
5767 "Perform user authentication at the IRC server."
5768 (erc-log (format "login: nick: %s, user: %s %s %s :%s"
5769 (erc-current-nick)
5770 (user-login-name)
5771 (or erc-system-name (system-name))
5772 erc-session-server
5773 erc-session-user-full-name))
5774 (if erc-session-password
5775 (erc-server-send (format "PASS %s" erc-session-password))
5776 (message "Logging in without password"))
5777 (erc-server-send (format "NICK %s" (erc-current-nick)))
5778 (erc-server-send
5779 (format "USER %s %s %s :%s"
5780 ;; hacked - S.B.
5781 (if erc-anonymous-login erc-email-userid (user-login-name))
5782 "0" "*"
5783 erc-session-user-full-name))
5784 (erc-update-mode-line))
5786 ;; connection properties' heuristics
5788 (defun erc-determine-parameters (&optional server port nick name)
5789 "Determine the connection and authentication parameters.
5790 Sets the buffer local variables:
5792 - `erc-session-connector'
5793 - `erc-session-server'
5794 - `erc-session-port'
5795 - `erc-session-full-name'
5796 - `erc-server-current-nick'"
5797 (setq erc-session-connector erc-server-connect-function
5798 erc-session-server (erc-compute-server server)
5799 erc-session-port (or port erc-default-port)
5800 erc-session-user-full-name (erc-compute-full-name name))
5801 (erc-set-current-nick (erc-compute-nick nick)))
5803 (defun erc-compute-server (&optional server)
5804 "Return an IRC server name.
5806 This tries a number of increasingly more default methods until a
5807 non-nil value is found.
5809 - SERVER (the argument passed to this function)
5810 - The `erc-server' option
5811 - The value of the IRCSERVER environment variable
5812 - The `erc-default-server' variable"
5813 (or server
5814 erc-server
5815 (getenv "IRCSERVER")
5816 erc-default-server))
5818 (defun erc-compute-nick (&optional nick)
5819 "Return user's IRC nick.
5821 This tries a number of increasingly more default methods until a
5822 non-nil value is found.
5824 - NICK (the argument passed to this function)
5825 - The `erc-nick' option
5826 - The value of the IRCNICK environment variable
5827 - The result from the `user-login-name' function"
5828 (or nick
5829 (if (consp erc-nick) (car erc-nick) erc-nick)
5830 (getenv "IRCNICK")
5831 (user-login-name)))
5834 (defun erc-compute-full-name (&optional full-name)
5835 "Return user's full name.
5837 This tries a number of increasingly more default methods until a
5838 non-nil value is found.
5840 - FULL-NAME (the argument passed to this function)
5841 - The `erc-user-full-name' option
5842 - The value of the IRCNAME environment variable
5843 - The result from the `user-full-name' function"
5844 (or full-name
5845 erc-user-full-name
5846 (getenv "IRCNAME")
5847 (if erc-anonymous-login "unknown" nil)
5848 (user-full-name)))
5850 (defun erc-compute-port (&optional port)
5851 "Return a port for an IRC server.
5853 This tries a number of increasingly more default methods until a
5854 non-nil value is found.
5856 - PORT (the argument passed to this function)
5857 - The `erc-port' option
5858 - The `erc-default-port' variable"
5859 (or port erc-port erc-default-port))
5861 ;; time routines
5863 (defun erc-string-to-emacs-time (string)
5864 "Convert the long number represented by STRING into an Emacs format.
5865 Returns a list of the form (HIGH LOW), compatible with Emacs time format."
5866 (let* ((n (string-to-number (concat string ".0"))))
5867 (list (truncate (/ n 65536))
5868 (truncate (mod n 65536)))))
5870 (defun erc-emacs-time-to-erc-time (time)
5871 "Convert Emacs TIME to a number of seconds since the epoch."
5872 (when time
5873 (+ (* (nth 0 time) 65536.0) (nth 1 time))))
5874 ; (round (+ (* (nth 0 tm) 65536.0) (nth 1 tm))))
5876 (defun erc-current-time ()
5877 "Return the `current-time' as a number of seconds since the epoch.
5879 See also `erc-emacs-time-to-erc-time'."
5880 (erc-emacs-time-to-erc-time (current-time)))
5882 (defun erc-time-diff (t1 t2)
5883 "Return the time difference in seconds between T1 and T2."
5884 (abs (- t2 t1)))
5886 (defun erc-time-gt (t1 t2)
5887 "Check whether T1 > T2."
5888 (> t1 t2))
5890 (defun erc-sec-to-time (ns)
5891 "Convert NS to a time string HH:MM.SS."
5892 (setq ns (truncate ns))
5893 (format "%02d:%02d.%02d"
5894 (/ ns 3600)
5895 (/ (% ns 3600) 60)
5896 (% ns 60)))
5898 (defun erc-seconds-to-string (seconds)
5899 "Convert a number of SECONDS into an English phrase."
5900 (let (days hours minutes format-args output)
5901 (setq days (/ seconds 86400)
5902 seconds (% seconds 86400)
5903 hours (/ seconds 3600)
5904 seconds (% seconds 3600)
5905 minutes (/ seconds 60)
5906 seconds (% seconds 60)
5907 format-args (if (> days 0)
5908 `("%d days, %d hours, %d minutes, %d seconds"
5909 ,days ,hours ,minutes ,seconds)
5910 (if (> hours 0)
5911 `("%d hours, %d minutes, %d seconds"
5912 ,hours ,minutes ,seconds)
5913 (if (> minutes 0)
5914 `("%d minutes, %d seconds" ,minutes ,seconds)
5915 `("%d seconds" ,seconds))))
5916 output (apply 'format format-args))
5917 ;; Change all "1 units" to "1 unit".
5919 (setq output (erc-replace-match-subexpression-in-string
5920 "" output (match-string 2 output) 2 (match-beginning 2))))
5921 output))
5924 ;; info
5926 (defconst erc-clientinfo-alist
5927 '(("ACTION" . "is used to inform about one's current activity")
5928 ("CLIENTINFO" . "gives help on CTCP commands supported by client")
5929 ("ECHO" . "echoes its arguments back")
5930 ("FINGER" . "shows user's name, location, and idle time")
5931 ("PING" . "measures delay between peers")
5932 ("TIME" . "shows client-side time")
5933 ("USERINFO" . "shows information provided by a user")
5934 ("VERSION" . "shows client type and version"))
5935 "Alist of CTCP CLIENTINFO for ERC commands.")
5937 (defun erc-client-info (s)
5938 "Return CTCP CLIENTINFO on command S.
5939 If S is nil or an empty string then return general CLIENTINFO."
5940 (if (or (not s) (string= s ""))
5941 (concat
5942 (apply #'concat
5943 (mapcar (lambda (e)
5944 (concat (car e) " "))
5945 erc-clientinfo-alist))
5946 ": use CLIENTINFO <COMMAND> to get more specific information")
5947 (let ((h (assoc (upcase s) erc-clientinfo-alist)))
5948 (if h
5949 (concat s " " (cdr h))
5950 (concat s ": unknown command")))))
5952 ;; Hook functions
5954 (defun erc-directory-writable-p (dir)
5955 "Determine whether DIR is a writable directory.
5956 If it doesn't exist, create it."
5957 (unless (file-attributes dir) (make-directory dir))
5958 (or (file-accessible-directory-p dir) (error "Cannot access %s" dir)))
5960 (defun erc-kill-query-buffers (process)
5961 "Kill all buffers of PROCESS."
5962 ;; here, we only want to match the channel buffers, to avoid
5963 ;; "selecting killed buffers" b0rkage.
5964 (erc-with-all-buffers-of-server process
5965 (lambda ()
5966 (not (erc-server-buffer-p)))
5967 (kill-buffer (current-buffer))))
5969 (defun erc-nick-at-point ()
5970 "Give information about the nickname at `point'.
5972 If called interactively, give a human readable message in the
5973 minibuffer. If called programmatically, return the corresponding
5974 entry of `channel-members'."
5975 (interactive)
5976 (require 'thingatpt)
5977 (let* ((word (word-at-point))
5978 (channel-data (erc-get-channel-user word))
5979 (cuser (cdr channel-data))
5980 (user (if channel-data
5981 (car channel-data)
5982 (erc-get-server-user word)))
5983 host login full-name nick op voice)
5984 (when user
5985 (setq nick (erc-server-user-nickname user)
5986 host (erc-server-user-host user)
5987 login (erc-server-user-login user)
5988 full-name (erc-server-user-full-name user))
5989 (if cuser
5990 (setq op (erc-channel-user-op cuser)
5991 voice (erc-channel-user-voice cuser)))
5992 (if (called-interactively-p 'interactive)
5993 (message "%s is %s@%s%s%s"
5994 nick login host
5995 (if full-name (format " (%s)" full-name) "")
5996 (if (or op voice)
5997 (format " and is +%s%s on %s"
5998 (if op "o" "")
5999 (if voice "v" "")
6000 (erc-default-target))
6001 ""))
6002 user))))
6004 (defun erc-away-time ()
6005 "Return non-nil if the current ERC process is set away.
6007 In particular, the time that we were set away is returned.
6008 See `current-time' for details on the time format."
6009 (erc-with-server-buffer erc-away))
6011 ;; Mode line handling
6013 (defcustom erc-mode-line-format "%S %a"
6014 "A string to be formatted and shown in the mode-line in `erc-mode'.
6016 The string is formatted using `format-spec' and the result is set as the value
6017 of `mode-line-buffer-identification'.
6019 The following characters are replaced:
6021 %l: The estimated lag time to the server
6022 %m: The modes of the channel
6023 %n: The current nick name
6024 %N: The name of the network
6025 %o: The topic of the channel
6026 %p: The session port
6027 %t: The name of the target (channel, nickname, or servername:port)
6028 %s: In the server-buffer, this gets filled with the value of
6029 `erc-server-announced-name', in a channel, the value of
6030 (erc-default-target) also get concatenated.
6031 %S: In the server-buffer, this gets filled with the value of
6032 `erc-network', in a channel, the value of (erc-default-target)
6033 also get concatenated."
6034 :group 'erc-mode-line-and-header
6035 :type 'string)
6037 (defcustom erc-header-line-format "%n on %t (%m,%l) %o"
6038 "A string to be formatted and shown in the header-line in `erc-mode'.
6039 Only used starting in Emacs 21.
6041 Set this to nil if you do not want the header line to be
6042 displayed.
6044 See `erc-mode-line-format' for which characters are can be used."
6045 :group 'erc-mode-line-and-header
6046 :set (lambda (sym val)
6047 (set sym val)
6048 (when (fboundp 'erc-update-mode-line)
6049 (erc-update-mode-line nil)))
6050 :type '(choice (const :tag "Disabled" nil)
6051 string))
6053 (defcustom erc-header-line-uses-tabbar-p nil
6054 "Use tabbar mode instead of the header line to display the header."
6055 :group 'erc-mode-line-and-header
6056 :type 'boolean)
6058 (defcustom erc-header-line-uses-help-echo-p t
6059 "Show the contents of the header line in the echo area or as a tooltip
6060 when you move point into the header line."
6061 :group 'erc-mode-line-and-header
6062 :type 'boolean)
6064 (defcustom erc-header-line-face-method nil
6065 "Determine what method to use when colorizing the header line text.
6067 If nil, don't colorize the header text.
6068 If given a function, call it and use the resulting face name.
6069 Otherwise, use the `erc-header-line' face."
6070 :group 'erc-mode-line-and-header
6071 :type '(choice (const :tag "Don't colorize" nil)
6072 (const :tag "Use the erc-header-line face" t)
6073 (function :tag "Call a function")))
6075 (defcustom erc-show-channel-key-p t
6076 "Show the channel key in the header line."
6077 :group 'erc-paranoia
6078 :type 'boolean)
6080 (defcustom erc-mode-line-away-status-format
6081 "(AWAY since %a %b %d %H:%M) "
6082 "When you're away on a server, this is shown in the mode line.
6083 This should be a string with substitution variables recognized by
6084 `format-time-string'."
6085 :group 'erc-mode-line-and-header
6086 :type 'string)
6088 (defun erc-shorten-server-name (server-name)
6089 "Shorten SERVER-NAME according to `erc-common-server-suffixes'."
6090 (if (stringp server-name)
6091 (with-temp-buffer
6092 (insert server-name)
6093 (let ((alist erc-common-server-suffixes))
6094 (while alist
6095 (goto-char (point-min))
6096 (if (re-search-forward (caar alist) nil t)
6097 (replace-match (cdar alist)))
6098 (setq alist (cdr alist))))
6099 (buffer-string))))
6101 (defun erc-format-target ()
6102 "Return the name of the target (channel or nickname or servername:port)."
6103 (let ((target (erc-default-target)))
6104 (or target
6105 (concat (erc-shorten-server-name
6106 (or erc-server-announced-name
6107 erc-session-server))
6108 ":" (erc-port-to-string erc-session-port)))))
6110 (defun erc-format-target-and/or-server ()
6111 "Return the server name or the current target and server name combined."
6112 (let ((server-name (erc-shorten-server-name
6113 (or erc-server-announced-name
6114 erc-session-server))))
6115 (cond ((erc-default-target)
6116 (concat (erc-string-no-properties (erc-default-target))
6117 "@" server-name))
6118 (server-name server-name)
6119 (t (buffer-name (current-buffer))))))
6121 (defun erc-format-network ()
6122 "Return the name of the network we are currently on."
6123 (let ((network (and (fboundp 'erc-network-name) (erc-network-name))))
6124 (if (and network (symbolp network))
6125 (symbol-name network)
6126 "")))
6128 (defun erc-format-target-and/or-network ()
6129 "Return the network or the current target and network combined.
6130 If the name of the network is not available, then use the
6131 shortened server name instead."
6132 (let ((network-name (or (and (fboundp 'erc-network-name) (erc-network-name))
6133 (erc-shorten-server-name
6134 (or erc-server-announced-name
6135 erc-session-server)))))
6136 (when (and network-name (symbolp network-name))
6137 (setq network-name (symbol-name network-name)))
6138 (cond ((erc-default-target)
6139 (concat (erc-string-no-properties (erc-default-target))
6140 "@" network-name))
6141 (network-name network-name)
6142 (t (buffer-name (current-buffer))))))
6144 (defun erc-format-away-status ()
6145 "Return a formatted `erc-mode-line-away-status-format'
6146 if `erc-away' is non-nil."
6147 (let ((a (erc-away-time)))
6148 (if a
6149 (format-time-string erc-mode-line-away-status-format a)
6150 "")))
6152 (defun erc-format-channel-modes ()
6153 "Return the current channel's modes."
6154 (concat (apply 'concat
6155 "+" erc-channel-modes)
6156 (cond ((and erc-channel-user-limit erc-channel-key)
6157 (if erc-show-channel-key-p
6158 (format "lk %.0f %s" erc-channel-user-limit
6159 erc-channel-key)
6160 (format "kl %.0f" erc-channel-user-limit)))
6161 (erc-channel-user-limit
6162 ;; Emacs has no bignums
6163 (format "l %.0f" erc-channel-user-limit))
6164 (erc-channel-key
6165 (if erc-show-channel-key-p
6166 (format "k %s" erc-channel-key)
6167 "k"))
6168 (t nil))))
6170 (defun erc-format-lag-time ()
6171 "Return the estimated lag time to server, `erc-server-lag'."
6172 (let ((lag (erc-with-server-buffer erc-server-lag)))
6173 (cond (lag (format "lag:%.0f" lag))
6174 (t ""))))
6176 ;; erc-goodies is required at end of this file.
6177 (declare-function erc-controls-strip "erc-goodies" (str))
6179 (defvar tabbar--local-hlf)
6181 (defun erc-update-mode-line-buffer (buffer)
6182 "Update the mode line in a single ERC buffer BUFFER."
6183 (with-current-buffer buffer
6184 (let ((spec (format-spec-make
6185 ?a (erc-format-away-status)
6186 ?l (erc-format-lag-time)
6187 ?m (erc-format-channel-modes)
6188 ?n (or (erc-current-nick) "")
6189 ?N (erc-format-network)
6190 ?o (or (erc-controls-strip erc-channel-topic) "")
6191 ?p (erc-port-to-string erc-session-port)
6192 ?s (erc-format-target-and/or-server)
6193 ?S (erc-format-target-and/or-network)
6194 ?t (erc-format-target)))
6195 (process-status (cond ((and (erc-server-process-alive)
6196 (not erc-server-connected))
6197 ":connecting")
6198 ((erc-server-process-alive)
6199 "")
6200 (t
6201 ": CLOSED")))
6202 (face (cond ((eq erc-header-line-face-method nil)
6203 nil)
6204 ((functionp erc-header-line-face-method)
6205 (funcall erc-header-line-face-method))
6206 (t
6207 'erc-header-line))))
6208 (cond ((featurep 'xemacs)
6209 (setq modeline-buffer-identification
6210 (list (format-spec erc-mode-line-format spec)))
6211 (setq modeline-process (list process-status)))
6212 (t
6213 (setq mode-line-buffer-identification
6214 (list (format-spec erc-mode-line-format spec)))
6215 (setq mode-line-process (list process-status))))
6216 (when (boundp 'header-line-format)
6217 (let ((header (if erc-header-line-format
6218 (format-spec erc-header-line-format spec)
6219 nil)))
6220 (cond (erc-header-line-uses-tabbar-p
6221 (set (make-local-variable 'tabbar--local-hlf)
6222 header-line-format)
6223 (kill-local-variable 'header-line-format))
6224 ((null header)
6225 (setq header-line-format nil))
6226 (erc-header-line-uses-help-echo-p
6227 (let ((help-echo (with-temp-buffer
6228 (insert header)
6229 (fill-region (point-min) (point-max))
6230 (buffer-string))))
6231 (setq header-line-format
6232 (erc-replace-regexp-in-string
6233 "%"
6234 "%%"
6235 (if face
6236 (erc-propertize header 'help-echo help-echo
6237 'face face)
6238 (erc-propertize header 'help-echo help-echo))))))
6239 (t (setq header-line-format
6240 (if face
6241 (erc-propertize header 'face face)
6242 header)))))))
6243 (if (featurep 'xemacs)
6244 (redraw-modeline)
6245 (force-mode-line-update))))
6247 (defun erc-update-mode-line (&optional buffer)
6248 "Update the mode line in BUFFER.
6250 If BUFFER is nil, update the mode line in all ERC buffers."
6251 (if (and buffer (bufferp buffer))
6252 (erc-update-mode-line-buffer buffer)
6253 (dolist (buf (erc-buffer-list))
6254 (when (buffer-live-p buf)
6255 (erc-update-mode-line-buffer buf)))))
6257 ;; Miscellaneous
6259 (defun erc-port-to-string (p)
6260 "Convert port P to a string.
6261 P may be an integer or a service name."
6262 (if (integerp p)
6263 (int-to-string p)
6264 p))
6266 (defun erc-string-to-port (s)
6267 "Convert string S to either an integer port number or a service name."
6268 (if (numberp s)
6269 s
6270 (let ((n (string-to-number s)))
6271 (if (= n 0)
6272 s
6273 n))))
6275 (defun erc-version (&optional here)
6276 "Show the version number of ERC in the minibuffer.
6277 If optional argument HERE is non-nil, insert version number at point."
6278 (interactive "P")
6279 (let ((version-string
6280 (format "ERC %s (GNU Emacs %s)" erc-version-string emacs-version)))
6281 (if here
6282 (insert version-string)
6283 (if (called-interactively-p 'interactive)
6284 (message "%s" version-string)
6285 version-string))))
6287 (defun erc-modes (&optional here)
6288 "Show the active ERC modes in the minibuffer.
6289 If optional argument HERE is non-nil, insert version number at point."
6290 (interactive "P")
6291 (let ((string
6292 (mapconcat 'identity
6293 (let (modes (case-fold-search nil))
6294 (dolist (var (apropos-internal "^erc-.*mode$"))
6295 (when (and (boundp var)
6296 (symbol-value var))
6297 (setq modes (cons (symbol-name var)
6298 modes))))
6299 modes)
6300 ", ")))
6301 (if here
6302 (insert string)
6303 (if (called-interactively-p 'interactive)
6304 (message "%s" string)
6305 string))))
6307 (defun erc-trim-string (s)
6308 "Trim leading and trailing spaces off S."
6309 (cond
6310 ((not (stringp s)) nil)
6312 "")
6314 (match-string 1 s))
6315 (t
6316 s)))
6318 (defun erc-arrange-session-in-multiple-windows ()
6319 "Open a window for every non-server buffer related to `erc-session-server'.
6321 All windows are opened in the current frame."
6322 (interactive)
6323 (unless erc-server-process
6324 (error "No erc-server-process found in current buffer"))
6325 (let ((bufs (erc-buffer-list nil erc-server-process)))
6326 (when bufs
6327 (delete-other-windows)
6328 (switch-to-buffer (car bufs))
6329 (setq bufs (cdr bufs))
6330 (while bufs
6331 (split-window)
6332 (other-window 1)
6333 (switch-to-buffer (car bufs))
6334 (setq bufs (cdr bufs))
6335 (balance-windows)))))
6337 (defun erc-popup-input-buffer ()
6338 "Provide an input buffer."
6339 (interactive)
6340 (let ((buffer-name (generate-new-buffer-name "*ERC input*"))
6341 (mode (intern
6342 (completing-read
6343 "Mode: "
6344 (mapcar (lambda (e)
6345 (list (symbol-name e)))
6346 (apropos-internal "-mode$" 'commandp))
6347 nil t))))
6348 (pop-to-buffer (make-indirect-buffer (current-buffer) buffer-name))
6349 (funcall mode)
6350 (narrow-to-region (point) (point))
6351 (shrink-window-if-larger-than-buffer)))
6353 ;;; Message catalog
6355 (defun erc-make-message-variable-name (catalog entry)
6356 "Create a variable name corresponding to CATALOG's ENTRY."
6357 (intern (concat "erc-message-"
6358 (symbol-name catalog) "-" (symbol-name entry))))
6360 (defun erc-define-catalog-entry (catalog entry format-spec)
6361 "Set CATALOG's ENTRY to FORMAT-SPEC."
6362 (set (erc-make-message-variable-name catalog entry)
6363 format-spec))
6365 (defun erc-define-catalog (catalog entries)
6366 "Define a CATALOG according to ENTRIES."
6367 (dolist (entry entries)
6368 (erc-define-catalog-entry catalog (car entry) (cdr entry))))
6370 (erc-define-catalog
6371 'english
6372 '((bad-ping-response . "Unexpected PING response from %n (time %t)")
6375 (cannot-find-file . "Cannot find file %f")
6376 (cannot-read-file . "Cannot read file %f")
6377 (connect . "Connecting to %S:%p... ")
6378 (country . "%c")
6379 (country-unknown . "%d: No such domain")
6380 (ctcp-empty . "Illegal empty CTCP query received from %n. Ignoring.")
6381 (ctcp-request . "==> CTCP request from %n (%u@%h): %r")
6382 (ctcp-request-to . "==> CTCP request from %n (%u@%h) to %t: %r")
6383 (ctcp-too-many . "Too many CTCP queries in single message. Ignoring")
6384 (flood-ctcp-off . "FLOOD PROTECTION: Automatic CTCP responses turned off.")
6385 (flood-strict-mode
6386 . "FLOOD PROTECTION: Switched to Strict Flood Control mode.")
6388 (disconnected-noreconnect
6393 (nick-in-use . "%n is in use. Choose new nickname: ")
6394 (nick-too-long
6395 . "WARNING: Nick length (%i) exceeds max NICKLEN(%l) defined by server")
6396 (no-default-channel . "No default channel")
6397 (no-invitation . "You've got no invitation")
6398 (no-target . "No target")
6399 (ops . "%i operator%s: %o")
6400 (ops-none . "No operators in this channel.")
6401 (undefined-ctcp . "Undefined CTCP query received. Silently ignored")
6402 (variable-not-bound . "Variable not bound!")
6403 (ACTION . "* %n %a")
6404 (CTCP-CLIENTINFO . "Client info for %n: %m")
6405 (CTCP-ECHO . "Echo %n: %m")
6406 (CTCP-FINGER . "Finger info for %n: %m")
6407 (CTCP-PING . "Ping time to %n is %t")
6408 (CTCP-TIME . "Time by %n is %m")
6409 (CTCP-UNKNOWN . "Unknown CTCP message from %n (%u@%h): %m")
6410 (CTCP-VERSION . "Version for %n is %m")
6412 (INVITE . "%n (%u@%h) invites you to channel %c")
6413 (JOIN . "%n (%u@%h) has joined channel %c")
6414 (JOIN-you . "You have joined channel %c")
6415 (KICK . "%n (%u@%h) has kicked %k off channel %c: %r")
6416 (KICK-you . "You have been kicked off channel %c by %n (%u@%h): %r")
6417 (KICK-by-you . "You have kicked %k off channel %c: %r")
6418 (MODE . "%n (%u@%h) has changed mode for %t to %m")
6419 (MODE-nick . "%n has changed mode for %t to %m")
6420 (NICK . "%n (%u@%h) is now known as %N")
6421 (NICK-you . "Your new nickname is %N")
6422 (PART . erc-message-english-PART)
6423 (PING . "PING from server (last: %s sec. ago)")
6424 (PONG . "PONG from %h (%i second%s)")
6425 (QUIT . "%n (%u@%h) has quit: %r")
6427 (WALLOPS . "Wallops from %n: %m")
6428 (s004 . "%s %v %U %C")
6429 (s221 . "User modes for %n: %m")
6430 (s252 . "%i operator(s) online")
6431 (s253 . "%i unknown connection(s)")
6432 (s254 . "%i channels formed")
6433 (s275 . "%n %m")
6434 (s301 . "%n is AWAY: %r")
6435 (s303 . "Is online: %n")
6436 (s305 . "%m")
6437 (s306 . "%m")
6438 (s307 . "%n %m")
6439 (s311 . "%n is %f (%u@%h)")
6440 (s312 . "%n is/was on server %s (%c)")
6441 (s313 . "%n is an IRC operator")
6442 (s314 . "%n was %f (%u@%h)")
6443 (s317 . "%n has been idle for %i")
6444 (s317-on-since . "%n has been idle for %i, on since %t")
6445 (s319 . "%n is on channel(s): %c")
6446 (s320 . "%n is an identified user")
6447 (s321 . "Channel Users Topic")
6448 (s322 . "%c [%u] %t")
6449 (s324 . "%c modes: %m")
6450 (s328 . "%c URL: %u")
6451 (s329 . "%c was created on %t")
6452 (s330 . "%n %a %i")
6453 (s331 . "No topic is set for %c")
6454 (s332 . "Topic for %c: %T")
6455 (s333 . "%c: topic set by %n, %t")
6456 (s341 . "Inviting %n to channel %c")
6457 (s352 . "%-11c %-10n %-4a %u@%h (%f)")
6458 (s353 . "Users on %c: %u")
6459 (s367 . "Ban for %b on %c")
6460 (s367-set-by . "Ban for %b on %c set by %s on %t")
6461 (s368 . "Banlist of %c ends.")
6462 (s379 . "%c: Forwarded to %f")
6463 (s391 . "The time at %s is %t")
6464 (s401 . "%n: No such nick/channel")
6465 (s403 . "%c: No such channel")
6466 (s404 . "%c: Cannot send to channel")
6467 (s405 . "%c: You have joined too many channels")
6468 (s406 . "%n: There was no such nickname")
6469 (s412 . "No text to send")
6470 (s421 . "%c: Unknown command")
6471 (s431 . "No nickname given")
6472 (s432 . "%n is an erroneous nickname")
6473 (s442 . "%c: You're not on that channel")
6474 (s445 . "SUMMON has been disabled")
6475 (s446 . "USERS has been disabled")
6476 (s451 . "You have not registered")
6477 (s461 . "%c: not enough parameters")
6478 (s462 . "Unauthorized command (already registered)")
6479 (s463 . "Your host isn't among the privileged")
6480 (s464 . "Password incorrect")
6481 (s465 . "You are banned from this server")
6482 (s474 . "You can't join %c because you're banned (+b)")
6483 (s475 . "You must specify the correct channel key (+k) to join %c")
6484 (s481 . "Permission Denied - You're not an IRC operator")
6485 (s482 . "You need to be a channel operator of %c to do that")
6486 (s483 . "You can't kill a server!")
6487 (s484 . "Your connection is restricted!")
6488 (s485 . "You're not the original channel operator")
6489 (s491 . "No O-lines for your host")
6490 (s501 . "Unknown MODE flag")
6491 (s502 . "You can't change modes for other users")
6492 (s671 . "%n %a")))
6494 (defun erc-message-english-PART (&rest args)
6495 "Format a proper PART message.
6497 This function is an example on what could be done with formatting
6498 functions."
6499 (let ((nick (cadr (memq ?n args)))
6500 (user (cadr (memq ?u args)))
6501 (host (cadr (memq ?h args)))
6502 (channel (cadr (memq ?c args)))
6503 (reason (cadr (memq ?r args))))
6504 (if (string= nick (erc-current-nick))
6505 (format "You have left channel %s" channel)
6506 (format "%s (%s@%s) has left channel %s%s"
6507 nick user host channel
6508 (if (not (string= reason ""))
6509 (format ": %s"
6510 (erc-replace-regexp-in-string "%" "%%" reason))
6511 "")))))
6514 (defvar erc-current-message-catalog 'english)
6515 (make-variable-buffer-local 'erc-current-message-catalog)
6517 (defun erc-retrieve-catalog-entry (entry &optional catalog)
6518 "Retrieve ENTRY from CATALOG.
6520 If CATALOG is nil, `erc-current-message-catalog' is used.
6522 If ENTRY is nil in CATALOG, it is retrieved from the fallback,
6523 english, catalog."
6524 (unless catalog (setq catalog erc-current-message-catalog))
6525 (let ((var (erc-make-message-variable-name catalog entry)))
6526 (if (boundp var)
6527 (symbol-value var)
6528 (when (boundp (erc-make-message-variable-name 'english entry))
6529 (symbol-value (erc-make-message-variable-name 'english entry))))))
6531 (defun erc-format-message (msg &rest args)
6532 "Format MSG according to ARGS.
6534 See also `format-spec'."
6535 (when (eq (logand (length args) 1) 1) ; oddp
6536 (error "Obscure usage of this function appeared"))
6537 (let ((entry (erc-retrieve-catalog-entry msg)))
6538 (when (not entry)
6539 (error "No format spec for message %s" msg))
6540 (when (functionp entry)
6541 (setq entry (apply entry args)))
6542 (format-spec entry (apply 'format-spec-make args))))
6544 ;;; Various hook functions
6546 (add-hook 'kill-buffer-hook 'erc-kill-buffer-function)
6548 (defcustom erc-kill-server-hook '(erc-kill-server)
6549 "Invoked whenever a server buffer is killed via `kill-buffer'."
6550 :group 'erc-hooks
6551 :type 'hook)
6553 (defcustom erc-kill-channel-hook '(erc-kill-channel)
6554 "Invoked whenever a channel-buffer is killed via `kill-buffer'."
6555 :group 'erc-hooks
6556 :type 'hook)
6558 (defcustom erc-kill-buffer-hook nil
6559 "Hook run whenever a non-server or channel buffer is killed.
6561 See also `kill-buffer'."
6562 :group 'erc-hooks
6563 :type 'hook)
6565 (defun erc-kill-buffer-function ()
6566 "Function to call when an ERC buffer is killed.
6567 This function should be on `kill-buffer-hook'.
6568 When the current buffer is in `erc-mode', this function will run
6569 one of the following hooks:
6570 `erc-kill-server-hook' if the server buffer was killed,
6571 `erc-kill-channel-hook' if a channel buffer was killed,
6572 or `erc-kill-buffer-hook' if any other buffer."
6573 (when (eq major-mode 'erc-mode)
6574 (erc-remove-channel-users)
6575 (cond
6576 ((eq (erc-server-buffer) (current-buffer))
6577 (run-hooks 'erc-kill-server-hook))
6578 ((erc-channel-p (erc-default-target))
6579 (run-hooks 'erc-kill-channel-hook))
6580 (t
6581 (run-hooks 'erc-kill-buffer-hook)))))
6583 (defun erc-kill-server ()
6584 "Sends a QUIT command to the server when the server buffer is killed.
6585 This function should be on `erc-kill-server-hook'."
6586 (when (erc-server-process-alive)
6587 (setq erc-server-quitting t)
6588 (erc-server-send (format "QUIT :%s" (funcall erc-quit-reason nil)))))
6590 (defun erc-kill-channel ()
6591 "Sends a PART command to the server when the channel buffer is killed.
6592 This function should be on `erc-kill-channel-hook'."
6593 (when (erc-server-process-alive)
6594 (let ((tgt (erc-default-target)))
6595 (erc-server-send (format "PART %s :%s" tgt
6596 (funcall erc-part-reason nil))
6597 nil tgt))))
6599 ;;; Dealing with `erc-parsed'
6601 (defun erc-find-parsed-property ()
6602 "Find the next occurrence of the `erc-parsed' text property."
6603 (text-property-not-all (point-min) (point-max) 'erc-parsed nil))
6605 (defun erc-restore-text-properties ()
6606 "Restore the property 'erc-parsed for the region."
6607 (let ((parsed-posn (erc-find-parsed-property)))
6608 (put-text-property
6609 (point-min) (point-max)
6610 'erc-parsed (when parsed-posn (erc-get-parsed-vector parsed-posn)))))
6612 (defun erc-get-parsed-vector (point)
6613 "Return the whole parsed vector on POINT."
6614 (get-text-property point 'erc-parsed))
6616 (defun erc-get-parsed-vector-nick (vect)
6617 "Return nickname in the parsed vector VECT."
6618 (let* ((untreated-nick (and vect (erc-response.sender vect)))
6619 (maybe-nick (when untreated-nick
6620 (car (split-string untreated-nick "!")))))
6621 (when (and (not (null maybe-nick))
6622 (erc-is-valid-nick-p maybe-nick))
6623 untreated-nick)))
6625 (defun erc-get-parsed-vector-type (vect)
6626 "Return message type in the parsed vector VECT."
6627 (and vect
6628 (erc-response.command vect)))
6630 ;; Teach url.el how to open irc:// URLs with ERC.
6631 ;; To activate, customize `url-irc-function' to `url-irc-erc'.
6633 ;;;###autoload
6634 (defun erc-handle-irc-url (host port channel user password)
6635 "Use ERC to IRC on HOST:PORT in CHANNEL as USER with PASSWORD.
6636 If ERC is already connected to HOST:PORT, simply /join CHANNEL.
6637 Otherwise, connect to HOST:PORT as USER and /join CHANNEL."
6638 (let ((server-buffer
6639 (car (erc-buffer-filter
6640 (lambda ()
6641 (and (string-equal erc-session-server host)
6642 (= erc-session-port port)
6643 (erc-open-server-buffer-p)))))))
6644 (with-current-buffer (or server-buffer (current-buffer))
6645 (if (and server-buffer channel)
6646 (erc-cmd-JOIN channel)
6647 (erc-open host port (or user (erc-compute-nick)) (erc-compute-full-name)
6648 (not server-buffer) password nil channel
6649 (when server-buffer
6650 (get-buffer-process server-buffer)))))))
6652 (provide 'erc)
6654 ;; Deprecated. We might eventually stop requiring the goodies automatically.
6655 ;; IMPORTANT: This require must appear _after_ the above (provide 'erc) to
6656 ;; avoid a recursive require error when byte-compiling the entire package.
6657 (require 'erc-goodies)
6659 ;;; erc.el ends here
6660 ;;
6661 ;; Local Variables:
6662 ;; outline-regexp: ";;+"
6663 ;; indent-tabs-mode: t
6664 ;; tab-width: 8
6665 ;; End: