rcirc.el 100 KB
Newer Older
Richard M. Stallman's avatar
Richard M. Stallman committed
1 2
;;; rcirc.el --- default, simple IRC client.

3 4
;; Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010
;;   Free Software Foundation, Inc.
Richard M. Stallman's avatar
Richard M. Stallman committed
5 6 7 8 9

;; Author: Ryan Yeske
;; URL: http://www.nongnu.org/rcirc
;; Keywords: comm

10
;; This file is part of GNU Emacs.
Richard M. Stallman's avatar
Richard M. Stallman committed
11

12
;; GNU Emacs is free software: you can redistribute it and/or modify
Richard M. Stallman's avatar
Richard M. Stallman committed
13
;; it under the terms of the GNU General Public License as published by
14 15
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
Richard M. Stallman's avatar
Richard M. Stallman committed
16

17
;; GNU Emacs is distributed in the hope that it will be useful,
Richard M. Stallman's avatar
Richard M. Stallman committed
18
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Richard M. Stallman's avatar
Richard M. Stallman committed
20 21 22
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
23
;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
Richard M. Stallman's avatar
Richard M. Stallman committed
24 25 26

;;; Commentary:

27 28 29 30 31
;; Internet Relay Chat (IRC) is a form of instant communication over
;; the Internet. It is mainly designed for group (many-to-many)
;; communication in discussion forums called channels, but also allows
;; one-to-one communication.

Glenn Morris's avatar
Glenn Morris committed
32
;; Rcirc has simple defaults and clear and consistent behavior.
33 34 35 36 37
;; Message arrival timestamps, activity notification on the modeline,
;; message filling, nick completion, and keepalive pings are all
;; enabled by default, but can easily be adjusted or turned off.  Each
;; discussion takes place in its own buffer and there is a single
;; server buffer per connection.
Richard M. Stallman's avatar
Richard M. Stallman committed
38 39 40 41

;; Open a new irc connection with:
;; M-x irc RET

Miles Bader's avatar
Miles Bader committed
42 43
;;; Todo:

Richard M. Stallman's avatar
Richard M. Stallman committed
44 45 46 47 48 49
;;; Code:

(require 'ring)
(require 'time-date)
(eval-when-compile (require 'cl))

50 51 52
(defgroup rcirc nil
  "Simple IRC client."
  :version "22.1"
53
  :prefix "rcirc-"
54
  :link '(custom-manual "(rcirc)")
55 56
  :group 'applications)

57
(defcustom rcirc-server-alist
58 59 60 61 62 63 64
  '(("irc.freenode.net" :channels ("#rcirc")))
  "An alist of IRC connections to establish when running `rcirc'.
Each element looks like (SERVER-NAME PARAMETERS).

SERVER-NAME is a string describing the server to connect
to.

65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83
The optional PARAMETERS come in pairs PARAMETER VALUE.

The following parameters are recognized:

`:nick'

VALUE must be a string.  If absent, `rcirc-default-nick' is used
for this connection.

`:port'

VALUE must be a number or string.  If absent,
`rcirc-default-port' is used.

`:user-name'

VALUE must be a string.  If absent, `rcirc-default-user-name' is
used.

84 85 86 87 88
`:password'

VALUE must be a string.  If absent, no PASS command will be sent
to the server.

89 90 91 92 93 94 95 96 97 98 99
`:full-name'

VALUE must be a string.  If absent, `rcirc-default-full-name' is
used.

`:channels'

VALUE must be a list of strings describing which channels to join
when connecting to this server.  If absent, no channels will be
connected to automatically."
  :type '(alist :key-type string
100 101 102
		:value-type (plist :options ((:nick string)
					     (:port integer)
					     (:user-name string)
103
					     (:password string)
104 105
					     (:full-name string)
					     (:channels (repeat string)))))
106
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
107

108
(defcustom rcirc-default-port 6667
109 110 111
  "The default port to connect to."
  :type 'integer
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
112

113
(defcustom rcirc-default-nick (user-login-name)
114 115 116
  "Your nick."
  :type 'string
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
117

Ryan Yeske's avatar
Ryan Yeske committed
118
(defcustom rcirc-default-user-name "user"
119
  "Your user name sent to the server when connecting."
120
  :version "24.1"                       ; changed default
121 122
  :type 'string
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
123

Ryan Yeske's avatar
Ryan Yeske committed
124
(defcustom rcirc-default-full-name "unknown"
125
  "The full name sent to the server when connecting."
126
  :version "24.1"                       ; changed default
127 128
  :type 'string
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
129

130 131 132 133
(defcustom rcirc-fill-flag t
  "*Non-nil means line-wrap messages printed in channel buffers."
  :type 'boolean
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
134

135 136
(defcustom rcirc-fill-column nil
  "*Column beyond which automatic line-wrapping should happen.
137 138
If nil, use value of `fill-column'.  If 'frame-width, use the
maximum frame width."
139 140 141 142
  :type '(choice (const :tag "Value of `fill-column'")
		 (const :tag "Full frame width" frame-width)
		 (integer :tag "Number of columns"))
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
143

144
(defcustom rcirc-fill-prefix nil
Richard M. Stallman's avatar
Richard M. Stallman committed
145 146
  "*Text to insert before filled lines.
If nil, calculate the prefix dynamically to line up text
147 148 149 150
underneath each nick."
  :type '(choice (const :tag "Dynamic" nil)
		 (string :tag "Prefix text"))
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
151

152 153 154
(defvar rcirc-ignore-buffer-activity-flag nil
  "If non-nil, ignore activity in this buffer.")
(make-variable-buffer-local 'rcirc-ignore-buffer-activity-flag)
Richard M. Stallman's avatar
Richard M. Stallman committed
155

156 157 158 159
(defvar rcirc-low-priority-flag nil
  "If non-nil, activity in this buffer is considered low priority.")
(make-variable-buffer-local 'rcirc-low-priority-flag)

160 161 162 163 164
(defvar rcirc-omit-mode nil
  "Non-nil if Rcirc-Omit mode is enabled.
Use the command `rcirc-omit-mode' to change this variable.")
(make-variable-buffer-local 'rcirc-omit-mode)

165
(defcustom rcirc-time-format "%H:%M "
Richard M. Stallman's avatar
Richard M. Stallman committed
166
  "*Describes how timestamps are printed.
167 168 169
Used as the first arg to `format-time-string'."
  :type 'string
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
170

171 172 173 174
(defcustom rcirc-input-ring-size 1024
  "*Size of input history ring."
  :type 'integer
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
175

176
(defcustom rcirc-read-only-flag t
177
  "*Non-nil means make text in IRC buffers read-only."
178 179
  :type 'boolean
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
180

181
(defcustom rcirc-buffer-maximum-lines nil
Richard M. Stallman's avatar
Richard M. Stallman committed
182 183
  "*The maximum size in lines for rcirc buffers.
Channel buffers are truncated from the top to be no greater than this
184
number.  If zero or nil, no truncating is done."
185 186 187
  :type '(choice (const :tag "No truncation" nil)
		 (integer :tag "Number of lines"))
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
188

189
(defcustom rcirc-scroll-show-maximum-output t
190 191
  "*If non-nil, scroll buffer to keep the point at the bottom of
the window."
192 193
  :type 'boolean
  :group 'rcirc)
Miles Bader's avatar
Miles Bader committed
194

195 196 197 198 199 200 201
(defcustom rcirc-authinfo nil
  "List of authentication passwords.
Each element of the list is a list with a SERVER-REGEXP string
and a method symbol followed by method specific arguments.

The valid METHOD symbols are `nickserv', `chanserv' and
`bitlbee'.
Richard M. Stallman's avatar
Richard M. Stallman committed
202

203 204
The ARGUMENTS for each METHOD symbol are:
  `nickserv': NICK PASSWORD [NICKSERV-NICK]
205 206
  `chanserv': NICK CHANNEL PASSWORD
  `bitlbee': NICK PASSWORD
Richard M. Stallman's avatar
Richard M. Stallman committed
207

208
Examples:
209 210
 ((\"freenode\" nickserv \"bob\" \"p455w0rd\")
  (\"freenode\" chanserv \"bob\" \"#bobland\" \"passwd99\")
211 212
  (\"bitlbee\" bitlbee \"robert\" \"sekrit\")
  (\"dal.net\" nickserv \"bob\" \"sekrit\" \"NickServ@services.dal.net\"))"
213 214 215 216 217 218 219 220 221 222 223 224 225 226
  :type '(alist :key-type (string :tag "Server")
		:value-type (choice (list :tag "NickServ"
					  (const nickserv)
					  (string :tag "Nick")
					  (string :tag "Password"))
				    (list :tag "ChanServ"
					  (const chanserv)
					  (string :tag "Nick")
					  (string :tag "Channel")
					  (string :tag "Password"))
				    (list :tag "BitlBee"
					  (const bitlbee)
					  (string :tag "Nick")
					  (string :tag "Password"))))
227
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
228

229
(defcustom rcirc-auto-authenticate-flag t
Richard M. Stallman's avatar
Richard M. Stallman committed
230
  "*Non-nil means automatically send authentication string to server.
231
See also `rcirc-authinfo'."
232 233
  :type 'boolean
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
234

235
(defcustom rcirc-prompt "> "
236
  "Prompt string to use in IRC buffers.
Richard M. Stallman's avatar
Richard M. Stallman committed
237 238 239 240 241 242

The following replacements are made:
%n is your nick.
%s is the server.
%t is the buffer target, a channel or a user.

243 244 245 246 247 248 249
Setting this alone will not affect the prompt;
use either M-x customize or also call `rcirc-update-prompt'."
  :type 'string
  :set 'rcirc-set-changed
  :initialize 'custom-initialize-default
  :group 'rcirc)

250 251 252 253 254
(defcustom rcirc-keywords nil
  "List of keywords to highlight in message text."
  :type '(repeat string)
  :group 'rcirc)

255 256 257 258 259 260 261 262 263 264 265 266
(defcustom rcirc-ignore-list ()
  "List of ignored nicks.
Use /ignore to list them, use /ignore NICK to add or remove a nick."
  :type '(repeat string)
  :group 'rcirc)

(defvar rcirc-ignore-list-automatic ()
  "List of ignored nicks added to `rcirc-ignore-list' because of renaming.
When an ignored person renames, their nick is added to both lists.
Nicks will be removed from the automatic list on follow-up renamings or
parts.")

267 268
(defcustom rcirc-bright-nicks nil
  "List of nicks to be emphasized.
269
See `rcirc-bright-nick' face."
270
  :type '(repeat string)
271 272
  :group 'rcirc)

273 274
(defcustom rcirc-dim-nicks nil
  "List of nicks to be deemphasized.
275
See `rcirc-dim-nick' face."
276
  :type '(repeat string)
277 278
  :group 'rcirc)

279 280 281 282 283
(defcustom rcirc-print-hooks nil
  "Hook run after text is printed.
Called with 5 arguments, PROCESS, SENDER, RESPONSE, TARGET and TEXT."
  :type 'hook
  :group 'rcirc)
Richard M. Stallman's avatar
Richard M. Stallman committed
284

285 286 287 288 289
(defcustom rcirc-always-use-server-buffer-flag nil
  "Non-nil means messages without a channel target will go to the server buffer."
  :type 'boolean
  :group 'rcirc)

290
(defcustom rcirc-decode-coding-system 'utf-8
291 292 293 294 295 296 297 298 299 300
  "Coding system used to decode incoming irc messages."
  :type 'coding-system
  :group 'rcirc)

(defcustom rcirc-encode-coding-system 'utf-8
  "Coding system used to encode outgoing irc messages."
  :type 'coding-system
  :group 'rcirc)

(defcustom rcirc-coding-system-alist nil
301
  "Alist to decide a coding system to use for a channel I/O operation.
302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326
The format is ((PATTERN . VAL) ...).
PATTERN is either a string or a cons of strings.
If PATTERN is a string, it is used to match a target.
If PATTERN is a cons of strings, the car part is used to match a
target, and the cdr part is used to match a server.
VAL is either a coding system or a cons of coding systems.
If VAL is a coding system, it is used for both decoding and encoding
messages.
If VAL is a cons of coding systems, the car part is used for decoding,
and the cdr part is used for encoding."
  :type '(alist :key-type (choice (string :tag "Channel Regexp")
					  (cons (string :tag "Channel Regexp")
						(string :tag "Server Regexp")))
		:value-type (choice coding-system
				    (cons (coding-system :tag "Decode")
					  (coding-system :tag "Encode"))))
  :group 'rcirc)

(defcustom rcirc-multiline-major-mode 'fundamental-mode
  "Major-mode function to use in multiline edit buffers."
  :type 'function
  :group 'rcirc)

(defvar rcirc-nick nil)

Richard M. Stallman's avatar
Richard M. Stallman committed
327 328 329 330 331
(defvar rcirc-prompt-start-marker nil)
(defvar rcirc-prompt-end-marker nil)

(defvar rcirc-nick-table nil)

332 333 334
(defvar rcirc-recent-quit-alist nil
  "Alist of nicks that have recently quit or parted the channel.")

335 336 337 338 339 340 341 342
(defvar rcirc-nick-syntax-table
  (let ((table (make-syntax-table text-mode-syntax-table)))
    (mapc (lambda (c) (modify-syntax-entry c "w" table))
          "[]\\`_^{|}-")
    (modify-syntax-entry ?' "_" table)
    table)
  "Syntax table which includes all nick characters as word constituents.")

343 344 345
;; each process has an alist of (target . buffer) pairs
(defvar rcirc-buffer-alist nil)

Richard M. Stallman's avatar
Richard M. Stallman committed
346
(defvar rcirc-activity nil
347
  "List of buffers with unviewed activity.")
Richard M. Stallman's avatar
Richard M. Stallman committed
348 349 350 351 352

(defvar rcirc-activity-string ""
  "String displayed in modeline representing `rcirc-activity'.")
(put 'rcirc-activity-string 'risky-local-variable t)

353 354
(defvar rcirc-server-buffer nil
  "The server buffer associated with this channel buffer.")
Richard M. Stallman's avatar
Richard M. Stallman committed
355 356 357 358 359 360

(defvar rcirc-target nil
  "The channel or user associated with this buffer.")

(defvar rcirc-urls nil
  "List of urls seen in the current buffer.")
Miles Bader's avatar
Miles Bader committed
361
(put 'rcirc-urls 'permanent-local t)
Richard M. Stallman's avatar
Richard M. Stallman committed
362

363
(defvar rcirc-timeout-seconds 600
364
  "Kill connection after this many seconds if there is no activity.")
Richard M. Stallman's avatar
Richard M. Stallman committed
365

366
(defconst rcirc-id-string (concat "rcirc on GNU Emacs " emacs-version))
Richard M. Stallman's avatar
Richard M. Stallman committed
367 368

(defvar rcirc-startup-channels nil)
369

370 371 372 373 374 375 376 377 378
(defvar rcirc-server-name-history nil
  "History variable for \\[rcirc] call.")

(defvar rcirc-server-port-history nil
  "History variable for \\[rcirc] call.")

(defvar rcirc-nick-name-history nil
  "History variable for \\[rcirc] call.")

Ryan Yeske's avatar
Ryan Yeske committed
379 380 381
(defvar rcirc-user-name-history nil
  "History variable for \\[rcirc] call.")

Richard M. Stallman's avatar
Richard M. Stallman committed
382
;;;###autoload
383
(defun rcirc (arg)
384
  "Connect to all servers in `rcirc-server-alist'.
385 386 387 388

Do not connect to a server if it is already connected.

If ARG is non-nil, instead prompt for connection parameters."
389 390
  (interactive "P")
  (if arg
391 392
      (let* ((server (completing-read "IRC Server: "
				      rcirc-server-alist
393
				      nil nil
394 395
				      (caar rcirc-server-alist)
				      'rcirc-server-name-history))
396 397
	     (server-plist (cdr (assoc-string server rcirc-server-alist)))
	     (port (read-string "IRC Port: "
398
				(number-to-string
399
				 (or (plist-get server-plist :port)
400 401
				     rcirc-default-port))
				'rcirc-server-port-history))
402
	     (nick (read-string "IRC Nick: "
403
				(or (plist-get server-plist :nick)
404 405
				    rcirc-default-nick)
				'rcirc-nick-name-history))
Ryan Yeske's avatar
Ryan Yeske committed
406 407 408 409
	     (user-name (read-string "IRC Username: "
                                     (or (plist-get server-plist :user-name)
                                         rcirc-default-user-name)
                                     'rcirc-user-name-history))
410 411
	     (password (read-passwd "IRC Password: " nil
                                    (plist-get server-plist :password)))
412 413
	     (channels (split-string
			(read-string "IRC Channels: "
414
				     (mapconcat 'identity
415
						(plist-get server-plist
416
							   :channels)
417
						" "))
418
			"[, ]+" t)))
419
	(rcirc-connect server port nick user-name
420
		       rcirc-default-full-name
421
		       channels password))
422
    ;; connect to servers in `rcirc-server-alist'
423
    (let (connected-servers)
424
      (dolist (c rcirc-server-alist)
425
	(let ((server (car c))
426 427 428
	      (nick (or (plist-get (cdr c) :nick) rcirc-default-nick))
	      (port (or (plist-get (cdr c) :port) rcirc-default-port))
	      (user-name (or (plist-get (cdr c) :user-name)
429
			     rcirc-default-user-name))
430 431
	      (full-name (or (plist-get (cdr c) :full-name)
			     rcirc-default-full-name))
432 433
	      (channels (plist-get (cdr c) :channels))
              (password (plist-get (cdr c) :password)))
434 435 436 437 438 439 440
	  (when server
	    (let (connected)
	      (dolist (p (rcirc-process-list))
		(when (string= server (process-name p))
		  (setq connected p)))
	      (if (not connected)
		  (condition-case e
441 442
		      (rcirc-connect server port nick user-name
				     full-name channels password)
443
		    (quit (message "Quit connecting to %s" server)))
444 445 446 447 448 449 450
		(with-current-buffer (process-buffer connected)
		  (setq connected-servers
			(cons (process-contact (get-buffer-process
						(current-buffer)) :host)
			      connected-servers))))))))
      (when connected-servers
	(message "Already connected to %s"
451 452 453 454 455
		 (if (cdr connected-servers)
		     (concat (mapconcat 'identity (butlast connected-servers) ", ")
			     ", and "
			     (car (last connected-servers)))
		   (car connected-servers)))))))
456

Richard M. Stallman's avatar
Richard M. Stallman committed
457 458 459 460 461 462 463
;;;###autoload
(defalias 'irc 'rcirc)


(defvar rcirc-process-output nil)
(defvar rcirc-topic nil)
(defvar rcirc-keepalive-timer nil)
464
(defvar rcirc-last-server-message-time nil)
465 466 467 468 469 470
(defvar rcirc-server nil)		; server provided by server
(defvar rcirc-server-name nil)		; server name given by 001 response
(defvar rcirc-timeout-timer nil)
(defvar rcirc-user-disconnect nil)
(defvar rcirc-connecting nil)
(defvar rcirc-process nil)
471 472

;;;###autoload
473 474
(defun rcirc-connect (server &optional port nick user-name
                             full-name startup-channels password)
Richard M. Stallman's avatar
Richard M. Stallman committed
475 476 477
  (save-excursion
    (message "Connecting to %s..." server)
    (let* ((inhibit-eol-conversion)
478 479 480 481
           (port-number (if port
			    (if (stringp port)
				(string-to-number port)
			      port)
482 483 484
			  rcirc-default-port))
	   (nick (or nick rcirc-default-nick))
	   (user-name (or user-name rcirc-default-user-name))
485
	   (full-name (or full-name rcirc-default-full-name))
486
	   (startup-channels startup-channels)
487
           (process (make-network-process :name server :host server :service port-number)))
Richard M. Stallman's avatar
Richard M. Stallman committed
488 489
      ;; set up process
      (set-process-coding-system process 'raw-text 'raw-text)
490
      (switch-to-buffer (rcirc-generate-new-buffer-name process nil))
Richard M. Stallman's avatar
Richard M. Stallman committed
491 492
      (set-process-buffer process (current-buffer))
      (rcirc-mode process nil)
493 494
      (set-process-sentinel process 'rcirc-sentinel)
      (set-process-filter process 'rcirc-filter)
495 496
      (make-local-variable 'rcirc-process)
      (setq rcirc-process process)
497 498
      (make-local-variable 'rcirc-server)
      (setq rcirc-server server)
499 500
      (make-local-variable 'rcirc-server-name)
      (setq rcirc-server-name server)	; update when we get 001 response
501 502
      (make-local-variable 'rcirc-buffer-alist)
      (setq rcirc-buffer-alist nil)
Richard M. Stallman's avatar
Richard M. Stallman committed
503 504 505 506 507 508 509 510
      (make-local-variable 'rcirc-nick-table)
      (setq rcirc-nick-table (make-hash-table :test 'equal))
      (make-local-variable 'rcirc-nick)
      (setq rcirc-nick nick)
      (make-local-variable 'rcirc-process-output)
      (setq rcirc-process-output nil)
      (make-local-variable 'rcirc-startup-channels)
      (setq rcirc-startup-channels startup-channels)
511 512
      (make-local-variable 'rcirc-last-server-message-time)
      (setq rcirc-last-server-message-time (current-time))
513 514 515 516 517 518
      (make-local-variable 'rcirc-timeout-timer)
      (setq rcirc-timeout-timer nil)
      (make-local-variable 'rcirc-user-disconnect)
      (setq rcirc-user-disconnect nil)
      (make-local-variable 'rcirc-connecting)
      (setq rcirc-connecting t)
Richard M. Stallman's avatar
Richard M. Stallman committed
519

520 521
      (add-hook 'auto-save-hook 'rcirc-log-write)

Richard M. Stallman's avatar
Richard M. Stallman committed
522
      ;; identify
523 524
      (when password
        (rcirc-send-string process (concat "PASS " password)))
Richard M. Stallman's avatar
Richard M. Stallman committed
525 526
      (rcirc-send-string process (concat "NICK " nick))
      (rcirc-send-string process (concat "USER " user-name
Ryan Yeske's avatar
Ryan Yeske committed
527
                                         " 0 * :" full-name))
Richard M. Stallman's avatar
Richard M. Stallman committed
528 529

      ;; setup ping timer if necessary
530 531 532
      (unless rcirc-keepalive-timer
	(setq rcirc-keepalive-timer
	      (run-at-time 0 (/ rcirc-timeout-seconds 2) 'rcirc-keepalive)))
Richard M. Stallman's avatar
Richard M. Stallman committed
533 534 535 536 537 538

      (message "Connecting to %s...done" server)

      ;; return process object
      process)))

539 540 541 542 543
(defmacro with-rcirc-process-buffer (process &rest body)
  (declare (indent 1) (debug t))
  `(with-current-buffer (process-buffer ,process)
     ,@body))

544 545 546 547 548
(defmacro with-rcirc-server-buffer (&rest body)
  (declare (indent 0) (debug t))
  `(with-current-buffer rcirc-server-buffer
     ,@body))

Richard M. Stallman's avatar
Richard M. Stallman committed
549
(defun rcirc-keepalive ()
550 551 552
  "Send keep alive pings to active rcirc processes.
Kill processes that have not received a server message since the
last ping."
Richard M. Stallman's avatar
Richard M. Stallman committed
553 554
  (if (rcirc-process-list)
      (mapc (lambda (process)
555 556
	      (with-rcirc-process-buffer process
		(when (not rcirc-connecting)
557
		  (rcirc-send-string process
558 559
				     (format "PRIVMSG %s :\C-aKEEPALIVE %f\C-a"
					     rcirc-nick
560 561 562 563
                                             (if (featurep 'xemacs)
                                                 (time-to-seconds
                                                  (current-time))
                                               (float-time)))))))
Richard M. Stallman's avatar
Richard M. Stallman committed
564
            (rcirc-process-list))
565
    ;; no processes, clean up timer
Richard M. Stallman's avatar
Richard M. Stallman committed
566 567 568
    (cancel-timer rcirc-keepalive-timer)
    (setq rcirc-keepalive-timer nil)))

569 570
(defun rcirc-handler-ctcp-KEEPALIVE (process target sender message)
  (with-rcirc-process-buffer process
571 572 573 574
    (setq header-line-format (format "%f" (- (if (featurep 'xemacs)
                                                 (time-to-seconds
                                                  (current-time))
                                               (float-time))
575 576
					     (string-to-number message))))))

577 578 579 580
(defvar rcirc-debug-buffer " *rcirc debug*")
(defvar rcirc-debug-flag nil
  "If non-nil, write information to `rcirc-debug-buffer'.")
(defun rcirc-debug (process text)
Richard M. Stallman's avatar
Richard M. Stallman committed
581
  "Add an entry to the debug log including PROCESS and TEXT.
582
Debug text is written to `rcirc-debug-buffer' if `rcirc-debug-flag'
583 584
is non-nil."
  (when rcirc-debug-flag
585
    (with-current-buffer (get-buffer-create rcirc-debug-buffer)
586 587 588 589 590 591
      (goto-char (point-max))
      (insert (concat
	       "["
	       (format-time-string "%Y-%m-%dT%T ") (process-name process)
	       "] "
	       text)))))
592

Richard M. Stallman's avatar
Richard M. Stallman committed
593 594 595 596 597 598 599
(defvar rcirc-sentinel-hooks nil
  "Hook functions called when the process sentinel is called.
Functions are called with PROCESS and SENTINEL arguments.")

(defun rcirc-sentinel (process sentinel)
  "Called when PROCESS receives SENTINEL."
  (let ((sentinel (replace-regexp-in-string "\n" "" sentinel)))
600 601 602 603
    (rcirc-debug process (format "SENTINEL: %S %S\n" process sentinel))
    (with-rcirc-process-buffer process
      (dolist (buffer (cons nil (mapcar 'cdr rcirc-buffer-alist)))
	(with-current-buffer (or buffer (current-buffer))
604 605 606 607
	  (rcirc-print process "rcirc.el" "ERROR" rcirc-target
		       (format "%s: %s (%S)"
			       (process-name process)
			       sentinel
608
			       (process-status process)) (not rcirc-target))
609
	  (rcirc-disconnect-buffer)))
610
      (run-hook-with-args 'rcirc-sentinel-hooks process sentinel))))
Richard M. Stallman's avatar
Richard M. Stallman committed
611

612 613 614 615 616
(defun rcirc-disconnect-buffer (&optional buffer)
  (with-current-buffer (or buffer (current-buffer))
    ;; set rcirc-target to nil for each channel so cleanup
    ;; doesnt happen when we reconnect
    (setq rcirc-target nil)
617
    (setq mode-line-process ":disconnected")))
618

Richard M. Stallman's avatar
Richard M. Stallman committed
619 620 621 622
(defun rcirc-process-list ()
  "Return a list of rcirc processes."
  (let (ps)
    (mapc (lambda (p)
623
            (when (buffer-live-p (process-buffer p))
624
              (with-rcirc-process-buffer p
Richard M. Stallman's avatar
Richard M. Stallman committed
625 626 627 628 629 630
                (when (eq major-mode 'rcirc-mode)
                  (setq ps (cons p ps))))))
          (process-list))
    ps))

(defvar rcirc-receive-message-hooks nil
631 632
  "Hook functions run when a message is received from server.
Function is called with PROCESS, COMMAND, SENDER, ARGS and LINE.")
Richard M. Stallman's avatar
Richard M. Stallman committed
633 634
(defun rcirc-filter (process output)
  "Called when PROCESS receives OUTPUT."
635
  (rcirc-debug process output)
636
  (rcirc-reschedule-timeout process)
637
  (with-rcirc-process-buffer process
638
    (setq rcirc-last-server-message-time (current-time))
Richard M. Stallman's avatar
Richard M. Stallman committed
639 640 641 642 643
    (setq rcirc-process-output (concat rcirc-process-output output))
    (when (= (aref rcirc-process-output
                   (1- (length rcirc-process-output))) ?\n)
      (mapc (lambda (line)
              (rcirc-process-server-response process line))
644
            (split-string rcirc-process-output "[\n\r]" t))
Richard M. Stallman's avatar
Richard M. Stallman committed
645 646
      (setq rcirc-process-output nil))))

647 648 649 650 651 652 653 654 655 656 657 658
(defun rcirc-reschedule-timeout (process)
  (with-rcirc-process-buffer process
    (when (not rcirc-connecting)
      (with-rcirc-process-buffer process
	(when rcirc-timeout-timer (cancel-timer rcirc-timeout-timer))
	(setq rcirc-timeout-timer (run-at-time rcirc-timeout-seconds nil
					       'rcirc-delete-process
					       process))))))

(defun rcirc-delete-process (process)
  (delete-process process))

659
(defvar rcirc-trap-errors-flag t)
Richard M. Stallman's avatar
Richard M. Stallman committed
660
(defun rcirc-process-server-response (process text)
661
  (if rcirc-trap-errors-flag
Richard M. Stallman's avatar
Richard M. Stallman committed
662 663 664 665
      (condition-case err
          (rcirc-process-server-response-1 process text)
        (error
         (rcirc-print process "RCIRC" "ERROR" nil
666
                      (format "\"%s\" %s" text err) t)))
Richard M. Stallman's avatar
Richard M. Stallman committed
667 668 669 670
    (rcirc-process-server-response-1 process text)))

(defun rcirc-process-server-response-1 (process text)
  (if (string-match "^\\(:\\([^ ]+\\) \\)?\\([^ ]+\\) \\(.+\\)$" text)
671 672
      (let* ((user (match-string 2 text))
	     (sender (rcirc-user-nick user))
Richard M. Stallman's avatar
Richard M. Stallman committed
673 674 675 676 677 678
             (cmd (match-string 3 text))
             (args (match-string 4 text))
             (handler (intern-soft (concat "rcirc-handler-" cmd))))
        (string-match "^\\([^:]*\\):?\\(.+\\)?$" args)
        (let* ((args1 (match-string 1 args))
               (args2 (match-string 2 args))
679 680
               (args (delq nil (append (split-string args1 " " t)
				       (list args2)))))
Richard M. Stallman's avatar
Richard M. Stallman committed
681 682 683 684 685 686 687
        (if (not (fboundp handler))
            (rcirc-handler-generic process cmd sender args text)
          (funcall handler process sender args text))
        (run-hook-with-args 'rcirc-receive-message-hooks
                            process cmd sender args text)))
    (message "UNHANDLED: %s" text)))

688 689 690 691
(defvar rcirc-responses-no-activity '("305" "306")
  "Responses that don't trigger activity in the mode-line indicator.")

(defun rcirc-handler-generic (process response sender args text)
Richard M. Stallman's avatar
Richard M. Stallman committed
692
  "Generic server response handler."
693 694 695
  (rcirc-print process sender response nil
               (mapconcat 'identity (cdr args) " ")
	       (not (member response rcirc-responses-no-activity))))
Richard M. Stallman's avatar
Richard M. Stallman committed
696 697 698

(defun rcirc-send-string (process string)
  "Send PROCESS a STRING plus a newline."
699
  (let ((string (concat (encode-coding-string string rcirc-encode-coding-system)
Richard M. Stallman's avatar
Richard M. Stallman committed
700
                        "\n")))
701
    (unless (eq (process-status process) 'open)
702
      (error "Network connection to %s is not open"
703
             (process-name process)))
704
    (rcirc-debug process string)
Richard M. Stallman's avatar
Richard M. Stallman committed
705 706
    (process-send-string process string)))

707 708 709
(defun rcirc-buffer-process (&optional buffer)
  "Return the process associated with channel BUFFER.
With no argument or nil as argument, use the current buffer."
710 711 712 713 714
  (or (get-buffer-process (if buffer
			      (with-current-buffer buffer
				rcirc-server-buffer)
			    rcirc-server-buffer))
      rcirc-process))
715 716 717

(defun rcirc-server-name (process)
  "Return PROCESS server name, given by the 001 response."
718
  (with-rcirc-process-buffer process
719 720
    (or rcirc-server-name
	(warn "server name for process %S unknown" process))))
Richard M. Stallman's avatar
Richard M. Stallman committed
721 722 723

(defun rcirc-nick (process)
  "Return PROCESS nick."
724
  (with-rcirc-process-buffer process
725 726 727 728 729 730 731 732
    (or rcirc-nick rcirc-default-nick)))

(defun rcirc-buffer-nick (&optional buffer)
  "Return the nick associated with BUFFER.
With no argument or nil as argument, use the current buffer."
  (with-current-buffer (or buffer (current-buffer))
    (with-current-buffer rcirc-server-buffer
      (or rcirc-nick rcirc-default-nick))))
Richard M. Stallman's avatar
Richard M. Stallman committed
733

734
(defvar rcirc-max-message-length 420
Richard M. Stallman's avatar
Richard M. Stallman committed
735 736
  "Messages longer than this value will be split.")

737
(defun rcirc-send-message (process target message &optional noticep silent)
Richard M. Stallman's avatar
Richard M. Stallman committed
738
  "Send TARGET associated with PROCESS a privmsg with text MESSAGE.
739 740
If NOTICEP is non-nil, send a notice instead of privmsg.
If SILENT is non-nil, do not print the message in any irc buffer."
Richard M. Stallman's avatar
Richard M. Stallman committed
741 742 743 744 745 746 747 748 749 750 751
  ;; max message length is 512 including CRLF
  (let* ((response (if noticep "NOTICE" "PRIVMSG"))
         (oversize (> (length message) rcirc-max-message-length))
         (text (if oversize
                   (substring message 0 rcirc-max-message-length)
                 message))
         (text (if (string= text "")
                   " "
                 text))
         (more (if oversize
                   (substring message rcirc-max-message-length))))
752
    (rcirc-get-buffer-create process target)
Richard M. Stallman's avatar
Richard M. Stallman committed
753
    (rcirc-send-string process (concat response " " target " :" text))
754 755
    (unless silent
      (rcirc-print process (rcirc-nick process) response target text))
756
    (when more (rcirc-send-message process target more noticep))))
Richard M. Stallman's avatar
Richard M. Stallman committed
757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778

(defvar rcirc-input-ring nil)
(defvar rcirc-input-ring-index 0)
(defun rcirc-prev-input-string (arg)
  (ring-ref rcirc-input-ring (+ rcirc-input-ring-index arg)))

(defun rcirc-insert-prev-input (arg)
  (interactive "p")
  (when (<= rcirc-prompt-end-marker (point))
    (delete-region rcirc-prompt-end-marker (point-max))
    (insert (rcirc-prev-input-string 0))
    (setq rcirc-input-ring-index (1+ rcirc-input-ring-index))))

(defun rcirc-insert-next-input (arg)
  (interactive "p")
  (when (<= rcirc-prompt-end-marker (point))
    (delete-region rcirc-prompt-end-marker (point-max))
    (setq rcirc-input-ring-index (1- rcirc-input-ring-index))
    (insert (rcirc-prev-input-string -1))))

(defvar rcirc-nick-completions nil)
(defvar rcirc-nick-completion-start-offset nil)
Miles Bader's avatar
Miles Bader committed
779

Richard M. Stallman's avatar
Richard M. Stallman committed
780 781 782
(defun rcirc-complete-nick ()
  "Cycle through nick completions from list of nicks in channel."
  (interactive)
Miles Bader's avatar
Miles Bader committed
783
  (if (eq last-command this-command)
Richard M. Stallman's avatar
Richard M. Stallman committed
784 785 786 787 788 789 790 791 792 793 794
      (setq rcirc-nick-completions
            (append (cdr rcirc-nick-completions)
                    (list (car rcirc-nick-completions))))
    (setq rcirc-nick-completion-start-offset
          (- (save-excursion
               (if (re-search-backward " " rcirc-prompt-end-marker t)
                   (1+ (point))
                 rcirc-prompt-end-marker))
             rcirc-prompt-end-marker))
    (setq rcirc-nick-completions
          (let ((completion-ignore-case t))
795 796
            (all-completions
	     (buffer-substring
Richard M. Stallman's avatar
Richard M. Stallman committed
797 798 799 800
	      (+ rcirc-prompt-end-marker
		 rcirc-nick-completion-start-offset)
	      (point))
	     (mapcar (lambda (x) (cons x nil))
801 802
		     (rcirc-channel-nicks (rcirc-buffer-process)
					  rcirc-target))))))
Richard M. Stallman's avatar
Richard M. Stallman committed
803 804
  (let ((completion (car rcirc-nick-completions)))
    (when completion
805
      (delete-region (+ rcirc-prompt-end-marker
Miles Bader's avatar
Miles Bader committed
806 807
			rcirc-nick-completion-start-offset)
		     (point))
Richard M. Stallman's avatar
Richard M. Stallman committed
808
      (insert (concat completion
809
                      (if (= (+ rcirc-prompt-end-marker
Richard M. Stallman's avatar
Richard M. Stallman committed
810 811 812 813
                                rcirc-nick-completion-start-offset)
                             rcirc-prompt-end-marker)
                          ": "))))))

814 815 816 817 818 819 820 821 822
(defun set-rcirc-decode-coding-system (coding-system)
  "Set the decode coding system used in this channel."
  (interactive "zCoding system for incoming messages: ")
  (setq rcirc-decode-coding-system coding-system))

(defun set-rcirc-encode-coding-system (coding-system)
  "Set the encode coding system used in this channel."
  (interactive "zCoding system for outgoing messages: ")
  (setq rcirc-encode-coding-system coding-system))
Richard M. Stallman's avatar
Richard M. Stallman committed
823 824 825 826 827 828 829 830 831 832 833 834

(defvar rcirc-mode-map (make-sparse-keymap)
  "Keymap for rcirc mode.")

(define-key rcirc-mode-map (kbd "RET") 'rcirc-send-input)
(define-key rcirc-mode-map (kbd "M-p") 'rcirc-insert-prev-input)
(define-key rcirc-mode-map (kbd "M-n") 'rcirc-insert-next-input)
(define-key rcirc-mode-map (kbd "TAB") 'rcirc-complete-nick)
(define-key rcirc-mode-map (kbd "C-c C-b") 'rcirc-browse-url)
(define-key rcirc-mode-map (kbd "C-c C-c") 'rcirc-edit-multiline)
(define-key rcirc-mode-map (kbd "C-c C-j") 'rcirc-cmd-join)
(define-key rcirc-mode-map (kbd "C-c C-k") 'rcirc-cmd-kick)
835
(define-key rcirc-mode-map (kbd "C-c C-l") 'rcirc-toggle-low-priority)
Richard M. Stallman's avatar
Richard M. Stallman committed
836 837 838
(define-key rcirc-mode-map (kbd "C-c C-d") 'rcirc-cmd-mode)
(define-key rcirc-mode-map (kbd "C-c C-m") 'rcirc-cmd-msg)
(define-key rcirc-mode-map (kbd "C-c C-r") 'rcirc-cmd-nick) ; rename
839
(define-key rcirc-mode-map (kbd "C-c C-o") 'rcirc-omit-mode)
840
(define-key rcirc-mode-map (kbd "M-o") 'rcirc-omit-mode)
Richard M. Stallman's avatar
Richard M. Stallman committed
841 842 843 844 845 846 847
(define-key rcirc-mode-map (kbd "C-c C-p") 'rcirc-cmd-part)
(define-key rcirc-mode-map (kbd "C-c C-q") 'rcirc-cmd-query)
(define-key rcirc-mode-map (kbd "C-c C-t") 'rcirc-cmd-topic)
(define-key rcirc-mode-map (kbd "C-c C-n") 'rcirc-cmd-names)
(define-key rcirc-mode-map (kbd "C-c C-w") 'rcirc-cmd-whois)
(define-key rcirc-mode-map (kbd "C-c C-x") 'rcirc-cmd-quit)
(define-key rcirc-mode-map (kbd "C-c TAB") ; C-i
848
  'rcirc-toggle-ignore-buffer-activity)
Richard M. Stallman's avatar
Richard M. Stallman committed
849 850 851
(define-key rcirc-mode-map (kbd "C-c C-s") 'rcirc-switch-to-server-buffer)
(define-key rcirc-mode-map (kbd "C-c C-a") 'rcirc-jump-to-first-unread-line)

852
(defvar rcirc-browse-url-map (make-sparse-keymap)
853
  "Keymap used for browsing URLs in `rcirc-mode'.")
854 855 856

(define-key rcirc-browse-url-map (kbd "RET") 'rcirc-browse-url-at-point)
(define-key rcirc-browse-url-map (kbd "<mouse-2>") 'rcirc-browse-url-at-mouse)
857
(define-key rcirc-browse-url-map [follow-link] 'mouse-face)
858 859 860 861

(defvar rcirc-short-buffer-name nil
  "Generated abbreviation to use to indicate buffer activity.")

Richard M. Stallman's avatar
Richard M. Stallman committed
862 863 864
(defvar rcirc-mode-hook nil
  "Hook run when setting up rcirc buffer.")

865 866
(defvar rcirc-last-post-time nil)

867 868 869 870
(defvar rcirc-log-alist nil
  "Alist of lines to log to disk when `rcirc-log-flag' is non-nil.
Each element looks like (FILENAME . TEXT).")

871 872 873 874
(defvar rcirc-current-line 0
  "The current number of responses printed in this channel.
This number is independent of the number of lines in the buffer.")

Richard M. Stallman's avatar
Richard M. Stallman committed
875
(defun rcirc-mode (process target)
876
  "Major mode for IRC channel buffers.
Richard M. Stallman's avatar
Richard M. Stallman committed
877 878 879 880 881 882

\\{rcirc-mode-map}"
  (kill-all-local-variables)
  (use-local-map rcirc-mode-map)
  (setq mode-name "rcirc")
  (setq major-mode 'rcirc-mode)
883
  (setq mode-line-process nil)
Richard M. Stallman's avatar
Richard M. Stallman committed
884 885 886

  (make-local-variable 'rcirc-input-ring)
  (setq rcirc-input-ring (make-ring rcirc-input-ring-size))
887 888
  (make-local-variable 'rcirc-server-buffer)
  (setq rcirc-server-buffer (process-buffer process))
Richard M. Stallman's avatar
Richard M. Stallman committed
889 890
  (make-local-variable 'rcirc-target)
  (setq rcirc-target target)
891 892
  (make-local-variable 'rcirc-topic)
  (setq rcirc-topic nil)
893 894
  (make-local-variable 'rcirc-last-post-time)
  (setq rcirc-last-post-time (current-time))
895 896
  (make-local-variable 'fill-paragraph-function)
  (setq fill-paragraph-function 'rcirc-fill-paragraph)
897 898 899 900
  (make-local-variable 'rcirc-recent-quit-alist)
  (setq rcirc-recent-quit-alist nil)
  (make-local-variable 'rcirc-current-line)
  (setq rcirc-current-line 0)
901 902 903

  (make-local-variable 'rcirc-short-buffer-name)
  (setq rcirc-short-buffer-name nil)
Richard M. Stallman's avatar
Richard M. Stallman committed
904 905 906
  (make-local-variable 'rcirc-urls)
  (setq use-hard-newlines t)

907 908 909 910 911 912 913 914
  ;; setup for omitting responses
  (setq buffer-invisibility-spec '())
  (setq buffer-display-table (make-display-table))
  (set-display-table-slot buffer-display-table 4
			  (let ((glyph (make-glyph-code 
					?. 'font-lock-keyword-face)))
			    (make-vector 3 glyph)))

915 916 917 918 919 920 921
  (make-local-variable 'rcirc-decode-coding-system)
  (make-local-variable 'rcirc-encode-coding-system)
  (dolist (i rcirc-coding-system-alist)
    (let ((chan (if (consp (car i)) (caar i) (car i)))
	  (serv (if (consp (car i)) (cdar i) "")))
      (when (and (string-match chan (or target ""))
		 (string-match serv (rcirc-server-name process)))
922 923
	(setq rcirc-decode-coding-system (if (consp (cdr i)) (cadr i) (cdr i))
	      rcirc-encode-coding-system (if (consp (cdr i)) (cddr i) (cdr i))))))
924

Richard M. Stallman's avatar
Richard M. Stallman committed
925 926 927 928 929 930 931 932 933 934 935 936 937
  ;; setup the prompt and markers
  (make-local-variable 'rcirc-prompt-start-marker)
  (setq rcirc-prompt-start-marker (make-marker))
  (set-marker rcirc-prompt-start-marker (point-max))
  (make-local-variable 'rcirc-prompt-end-marker)
  (setq rcirc-prompt-end-marker (make-marker))
  (set-marker rcirc-prompt-end-marker (point-max))
  (rcirc-update-prompt)
  (goto-char rcirc-prompt-end-marker)
  (make-local-variable 'overlay-arrow-position)
  (setq overlay-arrow-position (make-marker))
  (set-marker overlay-arrow-position nil)

938 939
  ;; if the user changes the major mode or kills the buffer, there is
  ;; cleanup work to do
940 941
  (add-hook 'change-major-mode-hook 'rcirc-change-major-mode-hook nil t)
  (add-hook 'kill-buffer-hook 'rcirc-kill-buffer-hook nil t)
942

943 944 945 946 947 948 949 950
  ;; add to buffer list, and update buffer abbrevs
  (when target				; skip server buffer
    (let ((buffer (current-buffer)))
      (with-rcirc-process-buffer process
	(setq rcirc-buffer-alist (cons (cons target buffer)
				       rcirc-buffer-alist))))
    (rcirc-update-short-buffer-names))

Richard M. Stallman's avatar
Richard M. Stallman committed
951 952
  (run-hooks 'rcirc-mode-hook))

953 954
(defun rcirc-update-prompt (&optional all)
  "Reset the prompt string in the current buffer.
955

956 957 958 959 960 961 962 963 964 965 966 967 968
If ALL is non-nil, update prompts in all IRC buffers."
  (if all
      (mapc (lambda (process)
	      (mapc (lambda (buffer)
		      (with-current-buffer buffer
			(rcirc-update-prompt)))
		    (with-rcirc-process-buffer process
		      (mapcar 'cdr rcirc-buffer-alist))))
	    (rcirc-process-list))
    (let ((inhibit-read-only t)
	  (prompt (or rcirc-prompt "")))
      (mapc (lambda (rep)
	      (setq prompt
969 970
		    (replace-regexp-in-string (car rep) (cdr rep) prompt)))
	    (list (cons "%n" (rcirc-buffer-nick))
971
		  (cons "%s" (with-rcirc-server-buffer rcirc-server-name))
972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993
		  (cons "%t" (or rcirc-target ""))))
      (save-excursion
	(delete-region rcirc-prompt-start-marker rcirc-prompt-end-marker)
	(goto-char rcirc-prompt-start-marker)
	(let ((start (point)))
	  (insert-before-markers prompt)
	  (set-marker rcirc-prompt-start-marker start)
	  (when (not (zerop (- rcirc-prompt-end-marker
			       rcirc-prompt-start-marker)))
	    (add-text-properties rcirc-prompt-start-marker
				 rcirc-prompt-end-marker
				 (list 'face 'rcirc-prompt
				       'read-only t 'field t
				       'front-sticky t 'rear-nonsticky t))))))))

(defun rcirc-set-changed (option value)
  "Set OPTION to VALUE and do updates after a customization change."
  (set-default option value)
  (cond ((eq option 'rcirc-prompt)
	 (rcirc-update-prompt 'all))
	(t
	 (error "Bad option %s" option))))
Richard M. Stallman's avatar
Richard M. Stallman committed
994 995 996 997 998 999 1000 1001 1002 1003 1004

(defun rcirc-channel-p (target)
  "Return t if TARGET is a channel name."
  (and target
       (not (zerop (length target)))
       (or (eq (aref target 0) ?#)
           (eq (aref target 0) ?&))))

(defun rcirc-kill-buffer-hook ()
  "Part the channel when killing an rcirc buffer."
  (when (eq major-mode 'rcirc-mode)
1005 1006 1007 1008 1009 1010 1011
    (rcirc-clean-up-buffer "Killed buffer")))

(defun rcirc-change-major-mode-hook ()
  "Part the channel when changing the major-mode."
  (rcirc-clean-up-buffer "Changed major mode"))

(defun rcirc-clean-up-buffer (reason)
1012 1013
  (let ((buffer (current-buffer)))
    (rcirc-clear-activity buffer)
1014 1015 1016 1017 1018
    (when (and (rcirc-buffer-process)
	       (eq (process-status (rcirc-buffer-process)) 'open))
      (with-rcirc-server-buffer
       (setq rcirc-buffer-alist
	     (rassq-delete-all buffer rcirc-buffer-alist)))
1019
      (rcirc-update-short-buffer-names)
Richard M. Stallman's avatar
Richard M. Stallman committed
1020
      (if (rcirc-channel-p rcirc-target)
1021 1022
	  (rcirc-send-string (rcirc-buffer-process)
			     (concat "PART " rcirc-target " :" reason))
1023
	(when rcirc-target
1024 1025
	  (rcirc-remove-nick-channel (rcirc-buffer-process)
				     (rcirc-buffer-nick)
1026 1027
				     rcirc-target))))
    (setq rcirc-target nil)))
1028 1029 1030

(defun rcirc-generate-new-buffer-name (process target)
  "Return a buffer name based on PROCESS and TARGET.
1031
This is used for the initial name given to IRC buffers."
1032 1033 1034 1035
  (substring-no-properties
   (if target
       (concat target "@" (process-name process))
     (concat "*" (process-name process) "*"))))
Richard M. Stallman's avatar
Richard M. Stallman committed
1036

1037
(defun rcirc-get-buffer (process target &optional server)
Richard M. Stallman's avatar
Richard M. Stallman committed
1038
  "Return the buffer associated with the PROCESS and TARGET.
1039 1040 1041 1042 1043 1044 1045 1046

If optional argument SERVER is non-nil, return the server buffer
if there is no existing buffer for TARGET, otherwise return nil."
  (with-rcirc-process-buffer process
    (if (null target)
	(current-buffer)
      (let ((buffer (cdr (assoc-string target rcirc-buffer-alist t))))
	(or buffer (when server (current-buffer)))))))
Richard M. Stallman's avatar
Richard M. Stallman committed
1047 1048

(defun rcirc-get-buffer-create (process target)
1049 1050 1051
  "Return the buffer associated with the PROCESS and TARGET.
Create the buffer if it doesn't exist."
  (let ((buffer (rcirc-get-buffer process target)))
1052
    (if (and buffer (buffer-live-p buffer))
1053
	(with-current-buffer buffer
1054
	  (when (not rcirc-target)
1055
 	    (setq rcirc-target target))
1056
	  buffer)
1057 1058 1059 1060 1061
      ;; create the buffer
      (with-rcirc-process-buffer process
	(let ((new-buffer (get-buffer-create
			   (rcirc-generate-new-buffer-name process target))))
	  (with-current-buffer new-buffer
1062 1063 1064
	    (rcirc-mode process target)
	    (rcirc-put-nick-channel process (rcirc-nick process) target 
				    rcirc-current-line))
1065
	  new-buffer)))))
Richard M. Stallman's avatar
Richard M. Stallman committed
1066 1067 1068 1069

(defun rcirc-send-input ()
  "Send input to target associated with the current buffer."
  (interactive)
1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085
  (if (< (point) rcirc-prompt-end-marker)
      ;; copy the line down to the input area
      (progn
	(forward-line 0)
	(let ((start (if (eq (point) (point-min))
			 (point)
		       (if (get-text-property (1- (point)) 'hard)
			   (point)
			 (previous-single-property-change (point) 'hard))))
	      (end (next-single-property-change (1+ (point)) 'hard)))
	  (goto-char (point-max))
	  (insert (replace-regexp-in-string
		   "\n\\s-+" " "
		   (buffer-substring-no-properties start end)))))
    ;; process input
    (goto-char (point-max))
1086 1087 1088
    (when (not (equal 0 (- (point) rcirc-prompt-end-marker)))
      ;; delete a trailing newline
      (when (eq (point) (point-at-bol))
1089
	(delete-char -1))
1090 1091 1092 1093 1094 1095 1096 1097 1098
      (let ((input (buffer-substring-no-properties
		    rcirc-prompt-end-marker (point))))
	(dolist (line (split-string input "\n"))
	  (rcirc-process-input-line line))
	;; add to input-ring
	(save-excursion
	  (ring-insert rcirc-input-ring input)
	  (setq rcirc-input-ring-index 0))))))

1099 1100 1101 1102 1103 1104 1105 1106
(defun rcirc-fill-paragraph (&optional arg)
  (interactive "p")
  (when (> (point) rcirc-prompt-end-marker)
    (save-restriction
      (narrow-to-region rcirc-prompt-end-marker (point-max))
      (let ((fill-column rcirc-max-message-length))
	(fill-region (point-min) (point-max))))))

1107
(defun rcirc-process-input-line (line)
1108 1109 1110 1111 1112 1113 1114 1115
  (if (string-match "^/\\([^ ]+\\) ?\\(.*\\)$" line)
      (rcirc-process-command (match-string 1 line)
			     (match-string 2 line)
			     line)
    (rcirc-process-message line)))

(defun rcirc-process-message (line)
  (if (not rcirc-target)
1116
      (message "Not joined (no target)")
1117
    (delete-region rcirc-prompt-end-marker (point))
1118 1119
    (rcirc-send-message (rcirc-buffer-process) rcirc-target line)
    (setq rcirc-last-post-time (current-time))))
1120 1121 1122 1123 1124

(defun rcirc-process-command (command args line)
  (if (eq (aref command 0) ?/)
      ;; "//text" will send "/text" as a message
      (rcirc-process-message (substring line 1))
1125 1126
    (let ((fun (intern-soft (concat "rcirc-cmd-" command)))
	  (process (rcirc-buffer-process)))
1127 1128 1129 1130
      (newline)
      (with-current-buffer (current-buffer)
	(delete-region rcirc-prompt-end-marker (point))
	(if (string= command "me")
1131
	    (rcirc-print process (rcirc-buffer-nick)
1132
			 "ACTION" rcirc-target args)
1133
	  (rcirc-print process (rcirc-buffer-nick)
1134 1135 1136
		       "COMMAND" rcirc-target line))
	(set-marker rcirc-prompt-end-marker (point))
	(if (fboundp fun)
1137 1138
	    (funcall fun args process rcirc-target)
	  (rcirc-send-string process
1139
			     (concat command " :" args)))))))
1140

Richard M. Stallman's avatar
Richard M. Stallman committed
1141 1142 1143 1144 1145 1146 1147
(defvar rcirc-parent-buffer nil)
(defvar rcirc-window-configuration nil)
(defun rcirc-edit-multiline ()
  "Move current edit to a dedicated buffer."
  (interactive)
  (let ((pos (1+ (- (point) rcirc-prompt-end-marker))))
    (goto-char (point-max))
1148 1149
    (let ((text (buffer-substring-no-properties rcirc-prompt-end-marker 
						(point)))
1150
          (parent (buffer-name)))
Richard M. Stallman's avatar
Richard M. Stallman committed
1151 1152 1153
      (delete-region rcirc-prompt-end-marker (point))
      (setq rcirc-window-configuration (current-window-configuration))
      (pop-to-buffer (concat "*multiline " parent "*"))
1154 1155
      (funcall rcirc-multiline-major-mode)
      (rcirc-multiline-minor-mode 1)
Richard M. Stallman's avatar
Richard M. Stallman committed
1156 1157
      (setq rcirc-parent-buffer parent)
      (insert text)
1158 1159
      (and (> pos 0) (goto-char pos))
      (message "Type C-c C-c to return text to %s, or C-c C-k to cancel" parent))))
Richard M. Stallman's avatar
Richard M. Stallman committed
1160

1161 1162
(defvar rcirc-multiline-minor-mode-map (make-sparse-keymap)
  "Keymap for multiline mode in rcirc.")
1163
(define-key rcirc-multiline-minor-mode-map
1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178
  (kbd "C-c C-c") 'rcirc-multiline-minor-submit)
(define-key rcirc-multiline-minor-mode-map
  (kbd "C-x C-s") 'rcirc-multiline-minor-submit)
(define-key rcirc-multiline-minor-mode-map
  (kbd "C-c C-k") 'rcirc-multiline-minor-cancel)
(define-key rcirc-multiline-minor-mode-map
  (kbd "ESC ESC ESC") 'rcirc-multiline-minor-cancel)

(define-minor-mode rcirc-multiline-minor-mode
  "Minor mode for editing multiple lines in rcirc."
  :init-value nil
  :lighter " rcirc-mline"
  :keymap rcirc-multiline-minor-mode-map
  :global nil
  :group 'rcirc
Richard M. Stallman's avatar
Richard M. Stallman committed
1179
  (make-local-variable 'rcirc-parent-buffer)
1180 1181
  (put 'rcirc-parent-buffer 'permanent-local t)
  (setq fill-column rcirc-max-message-length))
1182 1183

(defun rcirc-multiline-minor-submit ()
Richard M. Stallman's avatar
Richard M. Stallman committed
1184 1185
  "Send the text in buffer back to parent buffer."
  (interactive)
1186
  (untabify (point-min) (point-max))
Richard M. Stallman's avatar
Richard M. Stallman committed
1187 1188 1189 1190 1191 1192 1193
  (let ((text (buffer-substring (point-min) (point-max)))
        (buffer (current-buffer))
        (pos (point)))
    (set-buffer rcirc-parent-buffer)
    (goto-char (point-max))
    (insert text)
    (kill-buffer buffer)
1194 1195
    (set-window-configuration rcirc-window-configuration)
    (goto-char (+ rcirc-prompt-end-marker (1- pos)))))
Richard M. Stallman's avatar
Richard M. Stallman committed
1196

1197
(defun rcirc-multiline-minor-cancel ()
Richard M. Stallman's avatar
Richard M. Stallman committed
1198 1199 1200 1201 1202
  "Cancel the multiline edit."
  (interactive)
  (kill-buffer (current-buffer))
  (set-window-configuration rcirc-window-configuration))

1203
(defun rcirc-any-buffer (process)
1204
  "Return a buffer for PROCESS, either the one selected or the process buffer."
1205 1206 1207 1208 1209 1210
  (if rcirc-always-use-server-buffer-flag
      (process-buffer process)
    (let ((buffer (window-buffer (selected-window))))
      (if (and buffer
	       (with-current-buffer buffer
		 (and (eq major-mode 'rcirc-mode)
1211
		      (eq (rcirc-buffer-process) process))))
1212 1213
	  buffer
	(process-buffer process)))))
Richard M. Stallman's avatar
Richard M. Stallman committed
1214