1;;; gnus-msg.el --- mail and post interface for Gnus
2
3;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4;;   2004, 2005, 2006, 2007 Free Software Foundation, Inc.
5
6;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
7;;	Lars Magne Ingebrigtsen <larsi@gnus.org>
8;; Keywords: news
9
10;; This file is part of GNU Emacs.
11
12;; GNU Emacs is free software; you can redistribute it and/or modify
13;; it under the terms of the GNU General Public License as published by
14;; the Free Software Foundation; either version 2, or (at your option)
15;; any later version.
16
17;; GNU Emacs is distributed in the hope that it will be useful,
18;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20;; GNU General Public License for more details.
21
22;; You should have received a copy of the GNU General Public License
23;; along with GNU Emacs; see the file COPYING.  If not, write to the
24;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25;; Boston, MA 02110-1301, USA.
26
27;;; Commentary:
28
29;;; Code:
30
31(eval-when-compile (require 'cl))
32
33(require 'gnus)
34(require 'gnus-ems)
35(require 'message)
36(require 'gnus-art)
37(require 'gnus-util)
38
39(defcustom gnus-post-method 'current
40  "*Preferred method for posting USENET news.
41
42If this variable is `current' (which is the default), Gnus will use
43the \"current\" select method when posting.  If it is `native', Gnus
44will use the native select method when posting.
45
46This method will not be used in mail groups and the like, only in
47\"real\" newsgroups.
48
49If not `native' nor `current', the value must be a valid method as discussed
50in the documentation of `gnus-select-method'.  It can also be a list of
51methods.  If that is the case, the user will be queried for what select
52method to use when posting."
53  :group 'gnus-group-foreign
54  :link '(custom-manual "(gnus)Posting Server")
55  :type `(choice (const native)
56		 (const current)
57		 (sexp :tag "Methods" ,gnus-select-method)))
58
59(defcustom gnus-outgoing-message-group nil
60  "*All outgoing messages will be put in this group.
61If you want to store all your outgoing mail and articles in the group
62\"nnml:archive\", you set this variable to that value.  This variable
63can also be a list of group names.
64
65If you want to have greater control over what group to put each
66message in, you can set this variable to a function that checks the
67current newsgroup name and then returns a suitable group name (or list
68of names)."
69  :group 'gnus-message
70  :type '(choice (const nil)
71		 (function)
72		 (string :tag "Group")
73		 (repeat :tag "List of groups" (string :tag "Group"))))
74
75(defcustom gnus-mailing-list-groups nil
76  "*If non-nil a regexp matching groups that are really mailing lists.
77This is useful when you're reading a mailing list that has been
78gatewayed to a newsgroup, and you want to followup to an article in
79the group."
80  :group 'gnus-message
81  :type '(choice (regexp)
82		 (const nil)))
83
84(defcustom gnus-add-to-list nil
85  "*If non-nil, add a `to-list' parameter automatically."
86  :group 'gnus-message
87  :type 'boolean)
88
89(defcustom gnus-crosspost-complaint
90  "Hi,
91
92You posted the article below with the following Newsgroups header:
93
94Newsgroups: %s
95
96The %s group, at least, was an inappropriate recipient
97of this message.  Please trim your Newsgroups header to exclude this
98group before posting in the future.
99
100Thank you.
101
102"
103  "Format string to be inserted when complaining about crossposts.
104The first %s will be replaced by the Newsgroups header;
105the second with the current group name."
106  :group 'gnus-message
107  :type 'string)
108
109(defcustom gnus-message-setup-hook nil
110  "Hook run after setting up a message buffer."
111  :group 'gnus-message
112  :type 'hook)
113
114(defcustom gnus-bug-create-help-buffer t
115  "*Should we create the *Gnus Help Bug* buffer?"
116  :group 'gnus-message
117  :type 'boolean)
118
119(defcustom gnus-posting-styles nil
120  "*Alist of styles to use when posting.
121See Info node `(gnus)Posting Styles'."
122  :group 'gnus-message
123  :link '(custom-manual "(gnus)Posting Styles")
124  :type '(repeat (cons (choice (regexp)
125			       (variable)
126			       (list (const header)
127				     (string :tag "Header")
128				     (regexp :tag "Regexp"))
129			       (function)
130			       (sexp))
131		       (repeat (list
132				(choice (const signature)
133					(const signature-file)
134					(const organization)
135					(const address)
136					(const x-face-file)
137					(const name)
138					(const body)
139					(symbol)
140					(string :tag "Header"))
141				(choice (string)
142					(function)
143					(variable)
144					(sexp)))))))
145
146(defcustom gnus-gcc-mark-as-read nil
147  "If non-nil, automatically mark Gcc articles as read."
148  :version "22.1"
149  :group 'gnus-message
150  :type 'boolean)
151
152(make-obsolete-variable 'gnus-inews-mark-gcc-as-read
153			'gnus-gcc-mark-as-read)
154
155(defcustom gnus-gcc-externalize-attachments nil
156  "Should local-file attachments be included as external parts in Gcc copies?
157If it is `all', attach files as external parts;
158if a regexp and matches the Gcc group name, attach files as external parts;
159if nil, attach files as normal parts."
160  :version "22.1"
161  :group 'gnus-message
162  :type '(choice (const nil :tag "None")
163		 (const all :tag "Any")
164		 (string :tag "Regexp")))
165
166(gnus-define-group-parameter
167 posting-charset-alist
168 :type list
169 :function-document
170 "Return the permitted unencoded charsets for posting of GROUP."
171 :variable gnus-group-posting-charset-alist
172 :variable-default
173  '(("^\\(no\\|fr\\)\\.[^,]*\\(,[ \t\n]*\\(no\\|fr\\)\\.[^,]*\\)*$" iso-8859-1 (iso-8859-1))
174    ("^\\(fido7\\|relcom\\)\\.[^,]*\\(,[ \t\n]*\\(fido7\\|relcom\\)\\.[^,]*\\)*$" koi8-r (koi8-r))
175    (message-this-is-mail nil nil)
176    (message-this-is-news nil t))
177 :variable-document
178  "Alist of regexps and permitted unencoded charsets for posting.
179Each element of the alist has the form (TEST HEADER BODY-LIST), where
180TEST is either a regular expression matching the newsgroup header or a
181variable to query,
182HEADER is the charset which may be left unencoded in the header (nil
183means encode all charsets),
184BODY-LIST is a list of charsets which may be encoded using 8bit
185content-transfer encoding in the body, or one of the special values
186nil (always encode using quoted-printable) or t (always use 8bit).
187
188Note that any value other than nil for HEADER infringes some RFCs, so
189use this option with care."
190 :variable-group gnus-charset
191 :variable-type
192 '(repeat (list :tag "Permitted unencoded charsets"
193		(choice :tag "Where"
194			(regexp :tag "Group")
195			(const :tag "Mail message" :value message-this-is-mail)
196			(const :tag "News article" :value message-this-is-news))
197		(choice :tag "Header"
198			(const :tag "None" nil)
199			(symbol :tag "Charset"))
200		(choice :tag "Body"
201			(const :tag "Any" :value t)
202			(const :tag "None" :value nil)
203			(repeat :tag "Charsets"
204				(symbol :tag "Charset")))))
205 :parameter-type '(choice :tag "Permitted unencoded charsets"
206			  :value nil
207			  (repeat (symbol)))
208 :parameter-document       "\
209List of charsets that are permitted to be unencoded.")
210
211(defcustom gnus-debug-files
212  '("gnus.el" "gnus-sum.el" "gnus-group.el"
213    "gnus-art.el" "gnus-start.el" "gnus-async.el"
214    "gnus-msg.el" "gnus-score.el" "gnus-win.el" "gnus-topic.el"
215    "gnus-agent.el" "gnus-cache.el" "gnus-srvr.el"
216    "mm-util.el" "mm-decode.el" "nnmail.el" "message.el")
217  "Files whose variables will be reported in `gnus-bug'."
218  :version "22.1"
219  :group 'gnus-message
220  :type '(repeat (string :tag "File")))
221
222(defcustom gnus-debug-exclude-variables
223  '(mm-mime-mule-charset-alist
224    nnmail-split-fancy message-minibuffer-local-map)
225  "Variables that should not be reported in `gnus-bug'."
226  :version "22.1"
227  :group 'gnus-message
228  :type '(repeat (symbol :tag "Variable")))
229
230(defcustom gnus-discouraged-post-methods
231  '(nndraft nnml nnimap nnmaildir nnmh nnfolder nndir)
232  "A list of back ends that are not used in \"real\" newsgroups.
233This variable is used only when `gnus-post-method' is `current'."
234  :version "22.1"
235  :group 'gnus-group-foreign
236  :type '(repeat (symbol :tag "Back end")))
237
238(defcustom gnus-message-replysign
239  nil
240  "Automatically sign replies to signed messages.
241See also the `mml-default-sign-method' variable."
242  :group 'gnus-message
243  :type 'boolean)
244
245(defcustom gnus-message-replyencrypt
246  nil
247  "Automatically encrypt replies to encrypted messages.
248See also the `mml-default-encrypt-method' variable."
249  :group 'gnus-message
250  :type 'boolean)
251
252(defcustom gnus-message-replysignencrypted
253  t
254  "Setting this causes automatically encrypted messages to also be signed."
255  :group 'gnus-message
256  :type 'boolean)
257
258(defcustom gnus-confirm-mail-reply-to-news nil
259  "If non-nil, Gnus requests confirmation when replying to news.
260This is done because new users often reply by mistake when reading
261news.
262This can also be a function receiving the group name as the only
263parameter which should return non-nil iff a confirmation is needed, or
264a regexp, in which case a confirmation is asked for iff the group name
265matches the regexp."
266  :version "22.1"
267  :group 'gnus-message
268  :type '(choice (const :tag "No" nil)
269		 (const :tag "Yes" t)
270		 (regexp :tag "Iff group matches regexp")
271		 (function :tag "Iff function evaluates to non-nil")))
272
273(defcustom gnus-confirm-treat-mail-like-news
274  nil
275  "If non-nil, Gnus will treat mail like news with regard to confirmation
276when replying by mail.  See the `gnus-confirm-mail-reply-to-news' variable
277for fine-tuning this.
278If nil, Gnus will never ask for confirmation if replying to mail."
279  :version "22.1"
280  :group 'gnus-message
281  :type 'boolean)
282
283(defcustom gnus-summary-resend-default-address t
284  "If non-nil, Gnus tries to suggest a default address to resend to.
285If nil, the address field will always be empty after invoking
286`gnus-summary-resend-message'."
287  :version "22.1"
288  :group 'gnus-message
289  :type 'boolean)
290
291;;; Internal variables.
292
293(defvar gnus-inhibit-posting-styles nil
294  "Inhibit the use of posting styles.")
295
296(defvar gnus-article-yanked-articles nil)
297(defvar gnus-message-buffer "*Mail Gnus*")
298(defvar gnus-article-copy nil)
299(defvar gnus-check-before-posting nil)
300(defvar gnus-last-posting-server nil)
301(defvar gnus-message-group-art nil)
302
303(defvar gnus-msg-force-broken-reply-to nil)
304
305(defconst gnus-bug-message
306  "Sending a bug report to the Gnus Towers.
307========================================
308
309The buffer below is a mail buffer.  When you press `C-c C-c', it will
310be sent to the Gnus Bug Exterminators.
311
312The thing near the bottom of the buffer is how the environment
313settings will be included in the mail.  Please do not delete that.
314They will tell the Bug People what your environment is, so that it
315will be easier to locate the bugs.
316
317If you have found a bug that makes Emacs go \"beep\", set
318debug-on-error to t (`M-x set-variable RET debug-on-error RET t RET')
319and include the backtrace in your bug report.
320
321Please describe the bug in annoying, painstaking detail.
322
323Thank you for your help in stamping out bugs.
324")
325
326(eval-and-compile
327  (autoload 'gnus-uu-post-news "gnus-uu" nil t)
328  (autoload 'news-setup "rnewspost")
329  (autoload 'news-reply-mode "rnewspost")
330  (autoload 'rmail-dont-reply-to "mail-utils")
331  (autoload 'rmail-output "rmailout"))
332
333
334;;;
335;;; Gnus Posting Functions
336;;;
337
338(gnus-define-keys (gnus-summary-send-map "S" gnus-summary-mode-map)
339  "p" gnus-summary-post-news
340  "i" gnus-summary-news-other-window
341  "f" gnus-summary-followup
342  "F" gnus-summary-followup-with-original
343  "c" gnus-summary-cancel-article
344  "s" gnus-summary-supersede-article
345  "r" gnus-summary-reply
346  "y" gnus-summary-yank-message
347  "R" gnus-summary-reply-with-original
348  "w" gnus-summary-wide-reply
349  "W" gnus-summary-wide-reply-with-original
350  "v" gnus-summary-very-wide-reply
351  "V" gnus-summary-very-wide-reply-with-original
352  "n" gnus-summary-followup-to-mail
353  "N" gnus-summary-followup-to-mail-with-original
354  "m" gnus-summary-mail-other-window
355  "u" gnus-uu-post-news
356  "\M-c" gnus-summary-mail-crosspost-complaint
357  "Br" gnus-summary-reply-broken-reply-to
358  "BR" gnus-summary-reply-broken-reply-to-with-original
359  "om" gnus-summary-mail-forward
360  "op" gnus-summary-post-forward
361  "Om" gnus-uu-digest-mail-forward
362  "Op" gnus-uu-digest-post-forward)
363
364(gnus-define-keys (gnus-send-bounce-map "D" gnus-summary-send-map)
365  "b" gnus-summary-resend-bounced-mail
366  ;; "c" gnus-summary-send-draft
367  "r" gnus-summary-resend-message
368  "e" gnus-summary-resend-message-edit)
369
370;;; Internal functions.
371
372(defun gnus-inews-make-draft ()
373  `(lambda ()
374     (gnus-inews-make-draft-meta-information
375      ,gnus-newsgroup-name ',gnus-article-reply)))
376
377(defvar gnus-article-reply nil)
378(defmacro gnus-setup-message (config &rest forms)
379  (let ((winconf (make-symbol "gnus-setup-message-winconf"))
380	(buffer (make-symbol "gnus-setup-message-buffer"))
381	(article (make-symbol "gnus-setup-message-article"))
382	(yanked (make-symbol "gnus-setup-yanked-articles"))
383	(group (make-symbol "gnus-setup-message-group")))
384    `(let ((,winconf (current-window-configuration))
385	   (,buffer (buffer-name (current-buffer)))
386	   (,article gnus-article-reply)
387	   (,yanked gnus-article-yanked-articles)
388	   (,group gnus-newsgroup-name)
389	   (message-header-setup-hook
390	    (copy-sequence message-header-setup-hook))
391	   (mbl mml-buffer-list)
392	   (message-mode-hook (copy-sequence message-mode-hook)))
393       (setq mml-buffer-list nil)
394       (add-hook 'message-header-setup-hook 'gnus-inews-insert-gcc)
395       (add-hook 'message-header-setup-hook 'gnus-inews-insert-archive-gcc)
396       ;; message-newsreader and message-mailer were formerly set in
397       ;; gnus-inews-add-send-actions, but this is too late when
398       ;; message-generate-headers-first is used. --ansel
399       (add-hook 'message-mode-hook
400		 (lambda nil
401		   (setq message-newsreader
402			 (setq message-mailer (gnus-extended-version)))))
403       ;; #### FIXME: for a reason that I did not manage to identify yet,
404       ;; the variable `gnus-newsgroup-name' does not honor a dynamically
405       ;; scoped or setq'ed value from a caller like `C-u gnus-summary-mail'.
406       ;; After evaluation of @forms below, it gets the value we actually want
407       ;; to override, and the posting styles are used. For that reason, I've
408       ;; added an optional argument to `gnus-configure-posting-styles' to
409       ;; make sure that the correct value for the group name is used. -- drv
410       (add-hook 'message-mode-hook
411		 (if (memq ,config '(reply-yank reply))
412		     (lambda ()
413		       (gnus-configure-posting-styles ,group))
414		   (lambda ()
415		     ;; There may be an old " *gnus article copy*" buffer.
416		     (let (gnus-article-copy)
417		       (gnus-configure-posting-styles ,group)))))
418       (gnus-pull ',(intern gnus-draft-meta-information-header)
419		  message-required-headers)
420       (when (and ,group
421		  (not (string= ,group "")))
422	 (push (cons
423		(intern gnus-draft-meta-information-header)
424		(gnus-inews-make-draft))
425	       message-required-headers))
426       (unwind-protect
427	   (progn
428	     ,@forms)
429	 (gnus-inews-add-send-actions ,winconf ,buffer ,article ,config
430				      ,yanked)
431	 (setq gnus-message-buffer (current-buffer))
432	 (set (make-local-variable 'gnus-message-group-art)
433	      (cons ,group ,article))
434	 (set (make-local-variable 'gnus-newsgroup-name) ,group)
435	 (gnus-run-hooks 'gnus-message-setup-hook)
436	 (if (eq major-mode 'message-mode)
437	     (let ((mbl1 mml-buffer-list))
438	       (setq mml-buffer-list mbl)  ;; Global value
439	       (set (make-local-variable 'mml-buffer-list) mbl1);; Local value
440	       (gnus-make-local-hook 'kill-buffer-hook)
441	       (gnus-make-local-hook 'change-major-mode-hook)
442	       (add-hook 'change-major-mode-hook 'mml-destroy-buffers nil t)
443	       (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t))
444	   (mml-destroy-buffers)
445	   (setq mml-buffer-list mbl)))
446       (message-hide-headers)
447       (gnus-add-buffer)
448       (gnus-configure-windows ,config t)
449       (run-hooks 'post-command-hook)
450       (set-buffer-modified-p nil))))
451
452(defun gnus-inews-make-draft-meta-information (group article)
453  (concat "(\"" group "\" "
454	  (if article (number-to-string
455		       (if (listp article)
456			   (car article)
457			 article)) "\"\"")
458	  ")"))
459
460;;;###autoload
461(defun gnus-msg-mail (&optional to subject other-headers continue
462				switch-action yank-action send-actions)
463  "Start editing a mail message to be sent.
464Like `message-mail', but with Gnus paraphernalia, particularly the
465Gcc: header for archiving purposes."
466  (interactive)
467  (let ((buf (current-buffer))
468	mail-buf)
469    (gnus-setup-message 'message
470      (message-mail to subject other-headers continue
471		    nil yank-action send-actions))
472    (when switch-action
473      (setq mail-buf (current-buffer))
474      (switch-to-buffer buf)
475      (apply switch-action mail-buf nil)))
476  ;; COMPOSEFUNC should return t if succeed.  Undocumented ???
477  t)
478
479;;;###autoload
480(defun gnus-button-mailto (address)
481  "Mail to ADDRESS."
482  (set-buffer (gnus-copy-article-buffer))
483  (gnus-setup-message 'message
484    (message-reply address)))
485
486;;;###autoload
487(defun gnus-button-reply (&optional to-address wide)
488  "Like `message-reply'."
489  (interactive)
490  (gnus-setup-message 'message
491    (message-reply to-address wide)))
492
493;;;###autoload
494(define-mail-user-agent 'gnus-user-agent
495  'gnus-msg-mail 'message-send-and-exit
496  'message-kill-buffer 'message-send-hook)
497
498(defun gnus-setup-posting-charset (group)
499  (let ((alist gnus-group-posting-charset-alist)
500	(group (or group ""))
501	elem)
502    (when group
503      (catch 'found
504	(while (setq elem (pop alist))
505	  (when (or (and (stringp (car elem))
506			 (string-match (car elem) group))
507		    (and (functionp (car elem))
508			 (funcall (car elem) group))
509		    (and (symbolp (car elem))
510			 (symbol-value (car elem))))
511	    (throw 'found (cons (cadr elem) (caddr elem)))))))))
512
513(defun gnus-inews-add-send-actions (winconf buffer article
514					    &optional config yanked)
515  (gnus-make-local-hook 'message-sent-hook)
516  (add-hook 'message-sent-hook (if gnus-agent 'gnus-agent-possibly-do-gcc
517				 'gnus-inews-do-gcc) nil t)
518  (when gnus-agent
519    (gnus-make-local-hook 'message-header-hook)
520    (add-hook 'message-header-hook 'gnus-agent-possibly-save-gcc nil t))
521  (setq message-post-method
522	`(lambda (arg)
523	   (gnus-post-method arg ,gnus-newsgroup-name)))
524  (message-add-action
525   `(when (gnus-buffer-exists-p ,buffer)
526      (set-window-configuration ,winconf))
527   'exit 'postpone 'kill)
528  (let ((to-be-marked (cond
529		       (yanked
530			(mapcar
531			 (lambda (x) (if (listp x) (car x) x)) yanked))
532		       (article (if (listp article) article (list article)))
533		       (t nil))))
534    (message-add-action
535     `(when (gnus-buffer-exists-p ,buffer)
536	(save-excursion
537	  (set-buffer ,buffer)
538	  ,(when to-be-marked
539	     (if (eq config 'forward)
540		 `(gnus-summary-mark-article-as-forwarded ',to-be-marked)
541	       `(gnus-summary-mark-article-as-replied ',to-be-marked)))))
542     'send)))
543
544(put 'gnus-setup-message 'lisp-indent-function 1)
545(put 'gnus-setup-message 'edebug-form-spec '(form body))
546
547;;; Post news commands of Gnus group mode and summary mode
548
549(defun gnus-group-mail (&optional arg)
550  "Start composing a mail.
551If ARG, use the group under the point to find a posting style.
552If ARG is 1, prompt for a group name to find the posting style."
553  (interactive "P")
554  ;; We can't `let' gnus-newsgroup-name here, since that leads
555  ;; to local variables leaking.
556  (let ((group gnus-newsgroup-name)
557	;; make sure last viewed article doesn't affect posting styles:
558	(gnus-article-copy)
559	(buffer (current-buffer)))
560    (unwind-protect
561	(progn
562	  (setq gnus-newsgroup-name
563		(if arg
564		    (if (= 1 (prefix-numeric-value arg))
565			(completing-read "Use posting style of group: "
566					 gnus-active-hashtb nil
567					 (gnus-read-active-file-p))
568		      (gnus-group-group-name))
569		  ""))
570	  ;; #### see comment in gnus-setup-message -- drv
571	  (gnus-setup-message 'message (message-mail)))
572      (save-excursion
573	(set-buffer buffer)
574	(setq gnus-newsgroup-name group)))))
575
576(defun gnus-group-news (&optional arg)
577  "Start composing a news.
578If ARG, post to group under point.
579If ARG is 1, prompt for group name to post to.
580
581This function prepares a news even when using mail groups.  This is useful
582for posting messages to mail groups without actually sending them over the
583network.  The corresponding back end must have a 'request-post method."
584  (interactive "P")
585  ;; We can't `let' gnus-newsgroup-name here, since that leads
586  ;; to local variables leaking.
587  (let ((group gnus-newsgroup-name)
588	;; make sure last viewed article doesn't affect posting styles:
589	(gnus-article-copy)
590	(buffer (current-buffer)))
591    (unwind-protect
592	(progn
593	  (setq gnus-newsgroup-name
594		(if arg
595		    (if (= 1 (prefix-numeric-value arg))
596			(completing-read "Use group: "
597					 gnus-active-hashtb nil
598					 (gnus-read-active-file-p))
599		      (gnus-group-group-name))
600		  ""))
601	  ;; #### see comment in gnus-setup-message -- drv
602	  (gnus-setup-message 'message
603	    (message-news (gnus-group-real-name gnus-newsgroup-name))))
604      (save-excursion
605	(set-buffer buffer)
606	(setq gnus-newsgroup-name group)))))
607
608(defun gnus-group-post-news (&optional arg)
609  "Start composing a message (a news by default).
610If ARG, post to group under point.  If ARG is 1, prompt for group name.
611Depending on the selected group, the message might be either a mail or
612a news."
613  (interactive "P")
614  ;; Bind this variable here to make message mode hooks work ok.
615  (let ((gnus-newsgroup-name
616	 (if arg
617	     (if (= 1 (prefix-numeric-value arg))
618		 (completing-read "Newsgroup: " gnus-active-hashtb nil
619				  (gnus-read-active-file-p))
620	       (gnus-group-group-name))
621	   ""))
622	;; make sure last viewed article doesn't affect posting styles:
623	(gnus-article-copy))
624    (gnus-post-news 'post gnus-newsgroup-name nil nil nil nil
625		    (string= gnus-newsgroup-name ""))))
626
627(defun gnus-summary-mail-other-window (&optional arg)
628  "Start composing a mail in another window.
629Use the posting of the current group by default.
630If ARG, don't do that.  If ARG is 1, prompt for group name to find the
631posting style."
632  (interactive "P")
633  ;; We can't `let' gnus-newsgroup-name here, since that leads
634  ;; to local variables leaking.
635  (let ((group gnus-newsgroup-name)
636	;; make sure last viewed article doesn't affect posting styles:
637	(gnus-article-copy)
638	(buffer (current-buffer)))
639    (unwind-protect
640	(progn
641	  (setq gnus-newsgroup-name
642		(if arg
643		    (if (= 1 (prefix-numeric-value arg))
644			(completing-read "Use group: "
645					 gnus-active-hashtb nil
646					 (gnus-read-active-file-p))
647		      "")
648		  gnus-newsgroup-name))
649	  ;; #### see comment in gnus-setup-message -- drv
650	  (gnus-setup-message 'message (message-mail)))
651      (save-excursion
652	(set-buffer buffer)
653	(setq gnus-newsgroup-name group)))))
654
655(defun gnus-summary-news-other-window (&optional arg)
656  "Start composing a news in another window.
657Post to the current group by default.
658If ARG, don't do that.  If ARG is 1, prompt for group name to post to.
659
660This function prepares a news even when using mail groups.  This is useful
661for posting messages to mail groups without actually sending them over the
662network.  The corresponding back end must have a 'request-post method."
663  (interactive "P")
664  ;; We can't `let' gnus-newsgroup-name here, since that leads
665  ;; to local variables leaking.
666  (let ((group gnus-newsgroup-name)
667	;; make sure last viewed article doesn't affect posting styles:
668	(gnus-article-copy)
669	(buffer (current-buffer)))
670    (unwind-protect
671	(progn
672	  (setq gnus-newsgroup-name
673		(if arg
674		    (if (= 1 (prefix-numeric-value arg))
675			(completing-read "Use group: "
676					 gnus-active-hashtb nil
677					 (gnus-read-active-file-p))
678		      "")
679		  gnus-newsgroup-name))
680	  ;; #### see comment in gnus-setup-message -- drv
681	  (gnus-setup-message 'message
682	    (progn
683	      (message-news (gnus-group-real-name gnus-newsgroup-name))
684	      (set (make-local-variable 'gnus-discouraged-post-methods)
685		   (delq
686		    (car (gnus-find-method-for-group gnus-newsgroup-name))
687		    (copy-sequence gnus-discouraged-post-methods))))))
688      (save-excursion
689	(set-buffer buffer)
690	(setq gnus-newsgroup-name group)))))
691
692(defun gnus-summary-post-news (&optional arg)
693  "Start composing a message.  Post to the current group by default.
694If ARG, don't do that.  If ARG is 1, prompt for a group name to post to.
695Depending on the selected group, the message might be either a mail or
696a news."
697  (interactive "P")
698  ;; Bind this variable here to make message mode hooks work ok.
699  (let ((gnus-newsgroup-name
700	 (if arg
701	     (if (= 1 (prefix-numeric-value arg))
702		 (completing-read "Newsgroup: " gnus-active-hashtb nil
703				  (gnus-read-active-file-p))
704	       "")
705	   gnus-newsgroup-name))
706	;; make sure last viewed article doesn't affect posting styles:
707	(gnus-article-copy))
708    (gnus-post-news 'post gnus-newsgroup-name)))
709
710
711(defun gnus-summary-followup (yank &optional force-news)
712  "Compose a followup to an article.
713If prefix argument YANK is non-nil, the original article is yanked
714automatically.
715YANK is a list of elements, where the car of each element is the
716article number, and the cdr is the string to be yanked."
717  (interactive
718   (list (and current-prefix-arg
719	      (gnus-summary-work-articles 1))))
720  (when yank
721    (gnus-summary-goto-subject
722     (if (listp (car yank))
723	 (caar yank)
724       (car yank))))
725  (save-window-excursion
726    (gnus-summary-select-article))
727  (let ((headers (gnus-summary-article-header (gnus-summary-article-number)))
728	(gnus-newsgroup-name gnus-newsgroup-name))
729    ;; Send a followup.
730    (gnus-post-news nil gnus-newsgroup-name
731		    headers gnus-article-buffer
732		    yank nil force-news)
733    (gnus-summary-handle-replysign)))
734
735(defun gnus-summary-followup-with-original (n &optional force-news)
736  "Compose a followup to an article and include the original article.
737The text in the region will be yanked.  If the region isn't
738active, the entire article will be yanked."
739  (interactive "P")
740  (gnus-summary-followup (gnus-summary-work-articles n) force-news))
741
742(defun gnus-summary-followup-to-mail (&optional arg)
743  "Followup to the current mail message via news."
744  (interactive
745   (list (and current-prefix-arg
746	      (gnus-summary-work-articles 1))))
747  (gnus-summary-followup arg t))
748
749(defun gnus-summary-followup-to-mail-with-original (&optional arg)
750  "Followup to the current mail message via news."
751  (interactive "P")
752  (gnus-summary-followup (gnus-summary-work-articles arg) t))
753
754(defun gnus-inews-yank-articles (articles)
755  (let (beg article yank-string)
756    (message-goto-body)
757    (while (setq article (pop articles))
758      (when (listp article)
759	(setq yank-string (nth 1 article)
760	      article (nth 0 article)))
761      (save-window-excursion
762	(set-buffer gnus-summary-buffer)
763	(gnus-summary-select-article nil nil nil article)
764	(gnus-summary-remove-process-mark article))
765      (gnus-copy-article-buffer nil yank-string)
766      (let ((message-reply-buffer gnus-article-copy)
767	    (message-reply-headers
768	     ;; The headers are decoded.
769	     (with-current-buffer gnus-article-copy
770	       (save-restriction
771		 (nnheader-narrow-to-headers)
772		 (nnheader-parse-naked-head)))))
773	(message-yank-original)
774	(message-exchange-point-and-mark)
775	(setq beg (or beg (mark t))))
776      (when articles
777	(insert "\n")))
778    (push-mark)
779    (goto-char beg)))
780
781(defun gnus-summary-cancel-article (&optional n symp)
782  "Cancel an article you posted.
783Uses the process-prefix convention.  If given the symbolic
784prefix `a', cancel using the standard posting method; if not
785post using the current select method."
786  (interactive (gnus-interactive "P\ny"))
787  (let ((articles (gnus-summary-work-articles n))
788	(message-post-method
789	 `(lambda (arg)
790	    (gnus-post-method (eq ',symp 'a) ,gnus-newsgroup-name)))
791	article)
792    (while (setq article (pop articles))
793      (when (gnus-summary-select-article t nil nil article)
794	(when (gnus-eval-in-buffer-window gnus-original-article-buffer
795		(message-cancel-news))
796	  (gnus-summary-mark-as-read article gnus-canceled-mark)
797	  (gnus-cache-remove-article 1))
798	(gnus-article-hide-headers-if-wanted))
799      (gnus-summary-remove-process-mark article))))
800
801(defun gnus-summary-supersede-article ()
802  "Compose an article that will supersede a previous article.
803This is done simply by taking the old article and adding a Supersedes
804header line with the old Message-ID."
805  (interactive)
806  (let ((article (gnus-summary-article-number)))
807    (gnus-setup-message 'reply-yank
808      (gnus-summary-select-article t)
809      (set-buffer gnus-original-article-buffer)
810      (message-supersede)
811      (push
812       `((lambda ()
813	   (when (gnus-buffer-exists-p ,gnus-summary-buffer)
814	     (save-excursion
815	       (set-buffer ,gnus-summary-buffer)
816	       (gnus-cache-possibly-remove-article ,article nil nil nil t)
817	       (gnus-summary-mark-as-read ,article gnus-canceled-mark)))))
818       message-send-actions))))
819
820
821
822(defun gnus-copy-article-buffer (&optional article-buffer yank-string)
823  ;; make a copy of the article buffer with all text properties removed
824  ;; this copy is in the buffer gnus-article-copy.
825  ;; if ARTICLE-BUFFER is nil, gnus-article-buffer is used
826  ;; this buffer should be passed to all mail/news reply/post routines.
827  (setq gnus-article-copy (gnus-get-buffer-create " *gnus article copy*"))
828  (save-excursion
829    (set-buffer gnus-article-copy)
830    (mm-enable-multibyte))
831  (let ((article-buffer (or article-buffer gnus-article-buffer))
832	end beg)
833    (if (not (and (get-buffer article-buffer)
834		  (gnus-buffer-exists-p article-buffer)))
835	(error "Can't find any article buffer")
836      (save-excursion
837	(set-buffer article-buffer)
838	(let ((gnus-newsgroup-charset (or gnus-article-charset
839					  gnus-newsgroup-charset))
840	      (gnus-newsgroup-ignored-charsets
841	       (or gnus-article-ignored-charsets
842		   gnus-newsgroup-ignored-charsets)))
843	  (save-restriction
844	    ;; Copy over the (displayed) article buffer, delete
845	    ;; hidden text and remove text properties.
846	    (widen)
847	    (copy-to-buffer gnus-article-copy (point-min) (point-max))
848	    (set-buffer gnus-article-copy)
849	    (when yank-string
850	      (message-goto-body)
851	      (delete-region (point) (point-max))
852	      (insert yank-string))
853	    (gnus-article-delete-text-of-type 'annotation)
854	    (gnus-article-delete-text-of-type 'multipart)
855	    (gnus-remove-text-with-property 'gnus-prev)
856	    (gnus-remove-text-with-property 'gnus-next)
857	    (gnus-remove-text-with-property 'gnus-decoration)
858	    (insert
859	     (prog1
860		 (buffer-substring-no-properties (point-min) (point-max))
861	       (erase-buffer)))
862	    ;; Find the original headers.
863	    (set-buffer gnus-original-article-buffer)
864	    (goto-char (point-min))
865	    (while (looking-at message-unix-mail-delimiter)
866	      (forward-line 1))
867	    (let ((mail-header-separator ""))
868	      (setq beg (point)
869		    end (or (message-goto-body)
870			    ;; There may be just a header.
871			    (point-max))))
872	    ;; Delete the headers from the displayed articles.
873	    (set-buffer gnus-article-copy)
874	    (let ((mail-header-separator ""))
875	      (delete-region (goto-char (point-min))
876			     (or (message-goto-body) (point-max))))
877	    ;; Insert the original article headers.
878	    (insert-buffer-substring gnus-original-article-buffer beg end)
879	    ;; Decode charsets.
880	    (let ((gnus-article-decode-hook
881		   (delq 'article-decode-charset
882			 (copy-sequence gnus-article-decode-hook)))
883		  (rfc2047-quote-decoded-words-containing-tspecials t))
884	      (run-hooks 'gnus-article-decode-hook)))))
885      gnus-article-copy)))
886
887(defun gnus-post-news (post &optional group header article-buffer yank subject
888			    force-news)
889  (when article-buffer
890    (gnus-copy-article-buffer))
891  (let ((gnus-article-reply (and article-buffer (gnus-summary-article-number)))
892	(gnus-article-yanked-articles yank)
893	(add-to-list gnus-add-to-list))
894    (gnus-setup-message (cond (yank 'reply-yank)
895			      (article-buffer 'reply)
896			      (t 'message))
897      (let* ((group (or group gnus-newsgroup-name))
898	     (charset (gnus-group-name-charset nil group))
899	     (pgroup group)
900	     to-address to-group mailing-list to-list
901	     newsgroup-p)
902	(when group
903	  (setq to-address (gnus-parameter-to-address group)
904		to-group (gnus-group-find-parameter group 'to-group)
905		to-list (gnus-parameter-to-list group)
906		newsgroup-p (gnus-group-find-parameter group 'newsgroup)
907		mailing-list (when gnus-mailing-list-groups
908			       (string-match gnus-mailing-list-groups group))
909		group (gnus-group-name-decode (gnus-group-real-name group)
910					      charset)))
911	(if (or (and to-group
912		     (gnus-news-group-p to-group))
913		newsgroup-p
914		force-news
915		(and (gnus-news-group-p
916		      (or pgroup gnus-newsgroup-name)
917		      (or header gnus-current-article))
918		     (not mailing-list)
919		     (not to-list)
920		     (not to-address)))
921	    ;; This is news.
922	    (if post
923		(message-news
924		 (or to-group
925		     (and (not (gnus-virtual-group-p pgroup)) group)))
926	      (set-buffer gnus-article-copy)
927	      (gnus-msg-treat-broken-reply-to)
928	      (message-followup (if (or newsgroup-p force-news)
929				    (if (save-restriction
930					  (article-narrow-to-head)
931					  (message-fetch-field "newsgroups"))
932					nil
933				      "")
934				  to-group)))
935	  ;; The is mail.
936	  (if post
937	      (progn
938		(message-mail (or to-address to-list))
939		;; Arrange for mail groups that have no `to-address' to
940		;; get that when the user sends off the mail.
941		(when (and (not to-list)
942			   (not to-address)
943			   add-to-list)
944		  (push (list 'gnus-inews-add-to-address pgroup)
945			message-send-actions)))
946	    (set-buffer gnus-article-copy)
947	    (gnus-msg-treat-broken-reply-to)
948	    (message-wide-reply to-address)))
949	(when yank
950	  (gnus-inews-yank-articles yank))))))
951
952(defun gnus-msg-treat-broken-reply-to (&optional force)
953  "Remove the Reply-to header if broken-reply-to."
954  (when (or force
955	    (gnus-group-find-parameter
956	     gnus-newsgroup-name 'broken-reply-to))
957    (save-restriction
958      (message-narrow-to-head)
959      (message-remove-header "reply-to"))))
960
961(defun gnus-post-method (arg group &optional silent)
962  "Return the posting method based on GROUP and ARG.
963If SILENT, don't prompt the user."
964  (let ((gnus-post-method (or (gnus-parameter-post-method group)
965			      gnus-post-method))
966	(group-method (gnus-find-method-for-group group)))
967    (cond
968     ;; If the group-method is nil (which shouldn't happen) we use
969     ;; the default method.
970     ((null group-method)
971      (or (and (listp gnus-post-method)	;If not current/native/nil
972	       (not (listp (car gnus-post-method))) ; and not a list of methods
973	       gnus-post-method)	;then use it.
974	  gnus-select-method
975	  message-post-method))
976     ;; We want the inverse of the default
977     ((and arg (not (eq arg 0)))
978      (if (eq gnus-post-method 'current)
979	  gnus-select-method
980	group-method))
981     ;; We query the user for a post method.
982     ((or arg
983	  (and (listp gnus-post-method)
984	       (listp (car gnus-post-method))))
985      (let* ((methods
986	      ;; Collect all methods we know about.
987	      (append
988	       (when (listp gnus-post-method)
989		 (if (listp (car gnus-post-method))
990		     gnus-post-method
991		   (list gnus-post-method)))
992	       gnus-secondary-select-methods
993	       (mapcar 'cdr gnus-server-alist)
994	       (mapcar 'car gnus-opened-servers)
995	       (list gnus-select-method)
996	       (list group-method)))
997	     method-alist post-methods method)
998	;; Weed out all mail methods.
999	(while methods
1000	  (setq method (gnus-server-get-method "" (pop methods)))
1001	  (when (and (or (gnus-method-option-p method 'post)
1002			 (gnus-method-option-p method 'post-mail))
1003		     (not (member method post-methods)))
1004	    (push method post-methods)))
1005	;; Create a name-method alist.
1006	(setq method-alist
1007	      (mapcar
1008	       (lambda (m)
1009		 (if (equal (cadr m) "")
1010		     (list (symbol-name (car m)) m)
1011		   (list (concat (cadr m) " (" (symbol-name (car m)) ")") m)))
1012	       post-methods))
1013	;; Query the user.
1014	(cadr
1015	 (assoc
1016	  (setq gnus-last-posting-server
1017		(if (and silent
1018			 gnus-last-posting-server)
1019		    ;; Just use the last value.
1020		    gnus-last-posting-server
1021		  (completing-read
1022		   "Posting method: " method-alist nil t
1023		   (cons (or gnus-last-posting-server "") 0))))
1024	  method-alist))))
1025     ;; Override normal method.
1026     ((and (eq gnus-post-method 'current)
1027	   (not (memq (car group-method) gnus-discouraged-post-methods))
1028	   (gnus-get-function group-method 'request-post t))
1029      (assert (not arg))
1030      group-method)
1031     ;; Use gnus-post-method.
1032     ((listp gnus-post-method)		;A method...
1033      (assert (not (listp (car gnus-post-method)))) ;... not a list of methods.
1034      gnus-post-method)
1035     ;; Use the normal select method (nil or native).
1036     (t gnus-select-method))))
1037
1038
1039
1040(defun gnus-extended-version ()
1041  "Stringified Gnus version and Emacs version.
1042See the variable `gnus-user-agent'."
1043  (interactive)
1044  (if (stringp gnus-user-agent)
1045      gnus-user-agent
1046    ;; `gnus-user-agent' is a list:
1047    (let* ((float-output-format nil)
1048	   (gnus-v
1049	    (when (memq 'gnus gnus-user-agent)
1050	      (concat "Gnus/"
1051		      (prin1-to-string (gnus-continuum-version gnus-version) t)
1052		      " (" gnus-version ")")))
1053	   (emacs-v (gnus-emacs-version)))
1054      (concat gnus-v (when (and gnus-v emacs-v) " ")
1055	      emacs-v))))
1056
1057
1058;;;
1059;;; Gnus Mail Functions
1060;;;
1061
1062;;; Mail reply commands of Gnus summary mode
1063
1064(defun gnus-summary-reply (&optional yank wide very-wide)
1065  "Start composing a mail reply to the current message.
1066If prefix argument YANK is non-nil, the original article is yanked
1067automatically.
1068If WIDE, make a wide reply.
1069If VERY-WIDE, make a very wide reply."
1070  (interactive
1071   (list (and current-prefix-arg
1072	      (gnus-summary-work-articles 1))))
1073  ;; Allow user to require confirmation before replying by mail to the
1074  ;; author of a news article (or mail message).
1075  (when (or
1076	    (not (or (gnus-news-group-p gnus-newsgroup-name)
1077		     gnus-confirm-treat-mail-like-news))
1078	    (not (cond ((stringp gnus-confirm-mail-reply-to-news)
1079			(string-match gnus-confirm-mail-reply-to-news
1080				      gnus-newsgroup-name))
1081		       ((functionp gnus-confirm-mail-reply-to-news)
1082			(funcall gnus-confirm-mail-reply-to-news gnus-newsgroup-name))
1083		       (t gnus-confirm-mail-reply-to-news)))
1084	    (y-or-n-p "Really reply by mail to article author? "))
1085    (let* ((article
1086	    (if (listp (car yank))
1087		(caar yank)
1088	      (car yank)))
1089	   (gnus-article-reply (or article (gnus-summary-article-number)))
1090	   (gnus-article-yanked-articles yank)
1091	   (headers ""))
1092      ;; Stripping headers should be specified with mail-yank-ignored-headers.
1093      (when yank
1094	(gnus-summary-goto-subject article))
1095      (gnus-setup-message (if yank 'reply-yank 'reply)
1096	(if (not very-wide)
1097	    (gnus-summary-select-article)
1098	  (dolist (article very-wide)
1099	    (gnus-summary-select-article nil nil nil article)
1100	    (save-excursion
1101	      (set-buffer (gnus-copy-article-buffer))
1102	      (gnus-msg-treat-broken-reply-to)
1103	      (save-restriction
1104		(message-narrow-to-head)
1105		(setq headers (concat headers (buffer-string)))))))
1106	(set-buffer (gnus-copy-article-buffer))
1107	(gnus-msg-treat-broken-reply-to gnus-msg-force-broken-reply-to)
1108	(save-restriction
1109	  (message-narrow-to-head)
1110	  (when very-wide
1111	    (erase-buffer)
1112	    (insert headers))
1113	  (goto-char (point-max)))
1114	(mml-quote-region (point) (point-max))
1115	(message-reply nil wide)
1116	(when yank
1117	  (gnus-inews-yank-articles yank))
1118	(gnus-summary-handle-replysign)))))
1119
1120(defun gnus-summary-handle-replysign ()
1121  "Check the various replysign variables and take action accordingly."
1122  (when (or gnus-message-replysign gnus-message-replyencrypt)
1123    (let (signed encrypted)
1124      (save-excursion
1125	(set-buffer gnus-article-buffer)
1126	(setq signed (memq 'signed gnus-article-wash-types))
1127	(setq encrypted (memq 'encrypted gnus-article-wash-types)))
1128      (cond ((and gnus-message-replyencrypt encrypted)
1129	     (mml-secure-message mml-default-encrypt-method
1130				 (if gnus-message-replysignencrypted
1131				     'signencrypt
1132				   'encrypt)))
1133	    ((and gnus-message-replysign signed)
1134	     (mml-secure-message mml-default-sign-method 'sign))))))
1135
1136(defun gnus-summary-reply-with-original (n &optional wide)
1137  "Start composing a reply mail to the current message.
1138The original article will be yanked."
1139  (interactive "P")
1140  (gnus-summary-reply (gnus-summary-work-articles n) wide))
1141
1142(defun gnus-summary-reply-broken-reply-to (&optional yank wide very-wide)
1143  "Like `gnus-summary-reply' except removing reply-to field.
1144If prefix argument YANK is non-nil, the original article is yanked
1145automatically.
1146If WIDE, make a wide reply.
1147If VERY-WIDE, make a very wide reply."
1148  (interactive
1149   (list (and current-prefix-arg
1150	      (gnus-summary-work-articles 1))))
1151  (let ((gnus-msg-force-broken-reply-to t))
1152    (gnus-summary-reply yank wide very-wide)))
1153
1154(defun gnus-summary-reply-broken-reply-to-with-original (n &optional wide)
1155  "Like `gnus-summary-reply-with-original' except removing reply-to field.
1156The original article will be yanked."
1157  (interactive "P")
1158  (gnus-summary-reply-broken-reply-to (gnus-summary-work-articles n) wide))
1159
1160(defun gnus-summary-wide-reply (&optional yank)
1161  "Start composing a wide reply mail to the current message.
1162If prefix argument YANK is non-nil, the original article is yanked
1163automatically."
1164  (interactive
1165   (list (and current-prefix-arg
1166	      (gnus-summary-work-articles 1))))
1167  (gnus-summary-reply yank t))
1168
1169(defun gnus-summary-wide-reply-with-original (n)
1170  "Start composing a wide reply mail to the current message.
1171The original article will be yanked.
1172Uses the process/prefix convention."
1173  (interactive "P")
1174  (gnus-summary-reply-with-original n t))
1175
1176(defun gnus-summary-very-wide-reply (&optional yank)
1177  "Start composing a very wide reply mail to the current message.
1178If prefix argument YANK is non-nil, the original article is yanked
1179automatically."
1180  (interactive
1181   (list (and current-prefix-arg
1182	      (gnus-summary-work-articles 1))))
1183  (gnus-summary-reply yank t (gnus-summary-work-articles yank)))
1184
1185(defun gnus-summary-very-wide-reply-with-original (n)
1186  "Start composing a very wide reply mail to the current message.
1187The original article will be yanked."
1188  (interactive "P")
1189  (gnus-summary-reply
1190   (gnus-summary-work-articles n) t (gnus-summary-work-articles n)))
1191
1192(defun gnus-summary-mail-forward (&optional arg post)
1193  "Forward the current message(s) to another user.
1194If process marks exist, forward all marked messages;
1195if ARG is nil, see `message-forward-as-mime' and `message-forward-show-mml';
1196if ARG is 1, decode the message and forward directly inline;
1197if ARG is 2, forward message as an rfc822 MIME section;
1198if ARG is 3, decode message and forward as an rfc822 MIME section;
1199if ARG is 4, forward message directly inline;
1200otherwise, use flipped `message-forward-as-mime'.
1201If POST, post instead of mail.
1202For the `inline' alternatives, also see the variable
1203`message-forward-ignored-headers'."
1204  (interactive "P")
1205  (if (cdr (gnus-summary-work-articles nil))
1206      ;; Process marks are given.
1207      (gnus-uu-digest-mail-forward arg post)
1208    ;; No process marks.
1209    (let ((message-forward-as-mime message-forward-as-mime)
1210	  (message-forward-show-mml message-forward-show-mml))
1211      (cond
1212       ((null arg))
1213       ((eq arg 1)
1214	(setq message-forward-as-mime nil
1215	      message-forward-show-mml t))
1216       ((eq arg 2)
1217	(setq message-forward-as-mime t
1218	      message-forward-show-mml nil))
1219       ((eq arg 3)
1220	(setq message-forward-as-mime t
1221	      message-forward-show-mml t))
1222       ((eq arg 4)
1223	(setq message-forward-as-mime nil
1224	      message-forward-show-mml nil))
1225       (t
1226	(setq message-forward-as-mime (not message-forward-as-mime))))
1227      (let* ((gnus-article-reply (gnus-summary-article-number))
1228	     (gnus-article-yanked-articles (list gnus-article-reply)))
1229	(gnus-setup-message 'forward
1230	  (gnus-summary-select-article)
1231	  (let ((mail-parse-charset
1232		 (or (and (gnus-buffer-live-p gnus-article-buffer)
1233			  (with-current-buffer gnus-article-buffer
1234			    gnus-article-charset))
1235		     gnus-newsgroup-charset))
1236		(mail-parse-ignored-charsets
1237		 gnus-newsgroup-ignored-charsets))
1238	    (set-buffer gnus-original-article-buffer)
1239	    (message-forward post)))))))
1240
1241(defun gnus-summary-resend-message (address n)
1242  "Resend the current article to ADDRESS."
1243  (interactive
1244   (list (message-read-from-minibuffer
1245	  "Resend message(s) to: "
1246	  (when (and gnus-summary-resend-default-address
1247		     (gnus-buffer-live-p gnus-original-article-buffer))
1248	    ;; If some other article is currently selected, the
1249	    ;; initial-contents is wrong. Whatever, it is just the
1250	    ;; initial-contents.
1251	    (with-current-buffer gnus-original-article-buffer
1252	      (nnmail-fetch-field "to"))))
1253	 current-prefix-arg))
1254  (let ((articles (gnus-summary-work-articles n))
1255	article)
1256    (while (setq article (pop articles))
1257      (gnus-summary-select-article nil nil nil article)
1258      (save-excursion
1259	(set-buffer gnus-original-article-buffer)
1260	(message-resend address))
1261      (gnus-summary-mark-article-as-forwarded article))))
1262
1263;; From: Matthieu Moy <Matthieu.Moy@imag.fr>
1264(defun gnus-summary-resend-message-edit ()
1265  "Resend an article that has already been sent.
1266A new buffer will be created to allow the user to modify body and
1267contents of the message, and then, everything will happen as when
1268composing a new message."
1269  (interactive)
1270  (let ((article (gnus-summary-article-number)))
1271    (gnus-setup-message 'reply-yank
1272      (gnus-summary-select-article t)
1273      (set-buffer gnus-original-article-buffer)
1274      (let ((cur (current-buffer))
1275	    (to (message-fetch-field "to")))
1276	;; Get a normal message buffer.
1277	(message-pop-to-buffer (message-buffer-name "Resend" to))
1278	(insert-buffer-substring cur)
1279	(mime-to-mml)
1280	(message-narrow-to-head-1)
1281	;; Gnus will generate a new one when sending.
1282	(message-remove-header "Message-ID")
1283	(message-remove-header message-ignored-resent-headers t)
1284	;; Remove unwanted headers.
1285	(goto-char (point-max))
1286	(insert mail-header-separator)
1287	(goto-char (point-min))
1288	(when (re-search-forward "^To:\\|^Newsgroups:" nil 'move)
1289	  (forward-char 1))
1290	(widen)))))
1291
1292(defun gnus-summary-post-forward (&optional arg)
1293  "Forward the current article to a newsgroup.
1294See `gnus-summary-mail-forward' for ARG."
1295  (interactive "P")
1296  (gnus-summary-mail-forward arg t))
1297
1298(defvar gnus-nastygram-message
1299  "The following article was inappropriately posted to %s.\n\n"
1300  "Format string to insert in nastygrams.
1301The current group name will be inserted at \"%s\".")
1302
1303(defun gnus-summary-mail-nastygram (n)
1304  "Send a nastygram to the author of the current article."
1305  (interactive "P")
1306  (when (or gnus-expert-user
1307	    (gnus-y-or-n-p
1308	     "Really send a nastygram to the author of the current article? "))
1309    (let ((group gnus-newsgroup-name))
1310      (gnus-summary-reply-with-original n)
1311      (set-buffer gnus-message-buffer)
1312      (message-goto-body)
1313      (insert (format gnus-nastygram-message group))
1314      (message-send-and-exit))))
1315
1316(defun gnus-summary-mail-crosspost-complaint (n)
1317  "Send a complaint about crossposting to the current article(s)."
1318  (interactive "P")
1319  (let ((articles (gnus-summary-work-articles n))
1320	article)
1321    (while (setq article (pop articles))
1322      (set-buffer gnus-summary-buffer)
1323      (gnus-summary-goto-subject article)
1324      (let ((group (gnus-group-real-name gnus-newsgroup-name))
1325	    newsgroups followup-to)
1326	(gnus-summary-select-article)
1327	(set-buffer gnus-original-article-buffer)
1328	(if (and (<= (length (message-tokenize-header
1329			      (setq newsgroups
1330				    (mail-fetch-field "newsgroups"))
1331			      ", "))
1332		     1)
1333		 (or (not (setq followup-to (mail-fetch-field "followup-to")))
1334		     (not (member group (message-tokenize-header
1335					 followup-to ", ")))))
1336	    (if followup-to
1337		(gnus-message 1 "Followup-to restricted")
1338	      (gnus-message 1 "Not a crossposted article"))
1339	  (set-buffer gnus-summary-buffer)
1340	  (gnus-summary-reply-with-original 1)
1341	  (set-buffer gnus-message-buffer)
1342	  (message-goto-body)
1343	  (insert (format gnus-crosspost-complaint newsgroups group))
1344	  (message-goto-subject)
1345	  (re-search-forward " *$")
1346	  (replace-match " (crosspost notification)" t t)
1347	  (gnus-deactivate-mark)
1348	  (when (gnus-y-or-n-p "Send this complaint? ")
1349	    (message-send-and-exit)))))))
1350
1351(defun gnus-mail-parse-comma-list ()
1352  (let (accumulated
1353	beg)
1354    (skip-chars-forward " ")
1355    (while (not (eobp))
1356      (setq beg (point))
1357      (skip-chars-forward "^,")
1358      (while (zerop
1359	      (save-excursion
1360		(save-restriction
1361		  (let ((i 0))
1362		    (narrow-to-region beg (point))
1363		    (goto-char beg)
1364		    (logand (progn
1365			      (while (search-forward "\"" nil t)
1366				(incf i))
1367			      (if (zerop i) 2 i))
1368			    2)))))
1369	(skip-chars-forward ",")
1370	(skip-chars-forward "^,"))
1371      (skip-chars-backward " ")
1372      (push (buffer-substring beg (point))
1373	    accumulated)
1374      (skip-chars-forward "^,")
1375      (skip-chars-forward ", "))
1376    accumulated))
1377
1378(defun gnus-inews-add-to-address (group)
1379  (let ((to-address (mail-fetch-field "to")))
1380    (when (and to-address
1381	       (gnus-alive-p))
1382      ;; This mail group doesn't have a `to-list', so we add one
1383      ;; here.  Magic!
1384      (when (gnus-y-or-n-p
1385	     (format "Do you want to add this as `to-list': %s? " to-address))
1386	(gnus-group-add-parameter group (cons 'to-list to-address))))))
1387
1388(defun gnus-put-message ()
1389  "Put the current message in some group and return to Gnus."
1390  (interactive)
1391  (let ((reply gnus-article-reply)
1392	(winconf gnus-prev-winconf)
1393	(group gnus-newsgroup-name))
1394    (unless (and group
1395		 (not (gnus-group-read-only-p group)))
1396      (setq group (read-string "Put in group: " nil (gnus-writable-groups))))
1397
1398    (when (gnus-gethash group gnus-newsrc-hashtb)
1399      (error "No such group: %s" group))
1400    (save-excursion
1401      (save-restriction
1402	(widen)
1403	(message-narrow-to-headers)
1404	(let ((gnus-deletable-headers nil))
1405	  (message-generate-headers
1406	   (if (message-news-p)
1407	       message-required-news-headers
1408	     message-required-mail-headers)))
1409	(goto-char (point-max))
1410	(if (string-match " " group)
1411	    (insert "Gcc: \"" group "\"\n")
1412	  (insert "Gcc: " group "\n"))
1413	(widen)))
1414    (gnus-inews-do-gcc)
1415    (when (and (get-buffer gnus-group-buffer)
1416	       (gnus-buffer-exists-p (car-safe reply))
1417	       (cdr reply))
1418      (set-buffer (car reply))
1419      (gnus-summary-mark-article-as-replied (cdr reply)))
1420    (when winconf
1421      (set-window-configuration winconf))))
1422
1423(defun gnus-article-mail (yank)
1424  "Send a reply to the address near point.
1425If YANK is non-nil, include the original article."
1426  (interactive "P")
1427  (let ((address
1428	 (buffer-substring
1429	  (save-excursion (re-search-backward "[ \t\n]" nil t) (1+ (point)))
1430	  (save-excursion (re-search-forward "[ \t\n]" nil t) (1- (point))))))
1431    (when address
1432      (gnus-msg-mail address)
1433      (when yank
1434	(gnus-inews-yank-articles (list (cdr gnus-article-current)))))))
1435
1436(defvar nntp-server-type)
1437(defun gnus-bug ()
1438  "Send a bug report to the Gnus maintainers."
1439  (interactive)
1440  (unless (gnus-alive-p)
1441    (error "Gnus has been shut down"))
1442  (gnus-setup-message (if (message-mail-user-agent) 'message 'bug)
1443    (unless (message-mail-user-agent)
1444      (delete-other-windows)
1445      (when gnus-bug-create-help-buffer
1446	(switch-to-buffer "*Gnus Help Bug*")
1447	(erase-buffer)
1448	(insert gnus-bug-message)
1449	(goto-char (point-min)))
1450      (message-pop-to-buffer "*Gnus Bug*"))
1451    (let ((message-this-is-mail t))
1452      (message-setup `((To . ,gnus-maintainer) (Subject . ""))))
1453    (when gnus-bug-create-help-buffer
1454      (push `(gnus-bug-kill-buffer) message-send-actions))
1455    (goto-char (point-min))
1456    (re-search-forward (concat "^" (regexp-quote mail-header-separator) "$"))
1457    (forward-line 1)
1458    (insert (gnus-version) "\n"
1459	    (emacs-version) "\n")
1460    (when (and (boundp 'nntp-server-type)
1461	       (stringp nntp-server-type))
1462      (insert nntp-server-type))
1463    (insert "\n\n\n\n\n")
1464    (let (text)
1465      (save-excursion
1466	(set-buffer (gnus-get-buffer-create " *gnus environment info*"))
1467	(erase-buffer)
1468	(gnus-debug)
1469	(setq text (buffer-string)))
1470      (insert "<#part type=application/emacs-lisp disposition=inline description=\"User settings\">\n" text "\n<#/part>"))
1471    (goto-char (point-min))
1472    (search-forward "Subject: " nil t)
1473    (message "")))
1474
1475(defun gnus-bug-kill-buffer ()
1476  (when (get-buffer "*Gnus Help Bug*")
1477    (kill-buffer "*Gnus Help Bug*")))
1478
1479(defun gnus-summary-yank-message (buffer n)
1480  "Yank the current article into a composed message."
1481  (interactive
1482   (list (completing-read "Buffer: " (mapcar 'list (message-buffers)) nil t)
1483	 current-prefix-arg))
1484  (gnus-summary-iterate n
1485    (let ((gnus-inhibit-treatment t))
1486      (gnus-summary-select-article))
1487    (save-excursion
1488      (set-buffer buffer)
1489      (message-yank-buffer gnus-article-buffer))))
1490
1491(defun gnus-debug ()
1492  "Attempts to go through the Gnus source file and report what variables have been changed.
1493The source file has to be in the Emacs load path."
1494  (interactive)
1495  (let ((files gnus-debug-files)
1496	(point (point))
1497	file expr olist sym)
1498    (gnus-message 4 "Please wait while we snoop your variables...")
1499    (sit-for 0)
1500    ;; Go through all the files looking for non-default values for variables.
1501    (save-excursion
1502      (set-buffer (gnus-get-buffer-create " *gnus bug info*"))
1503      (while files
1504	(erase-buffer)
1505	(when (and (setq file (locate-library (pop files)))
1506		   (file-exists-p file))
1507	  (insert-file-contents file)
1508	  (goto-char (point-min))
1509	  (if (not (re-search-forward "^;;* *Internal variables" nil t))
1510	      (gnus-message 4 "Malformed sources in file %s" file)
1511	    (narrow-to-region (point-min) (point))
1512	    (goto-char (point-min))
1513	    (while (setq expr (ignore-errors (read (current-buffer))))
1514	      (ignore-errors
1515		(and (or (eq (car expr) 'defvar)
1516			 (eq (car expr) 'defcustom))
1517		     (stringp (nth 3 expr))
1518		     (not (memq (nth 1 expr) gnus-debug-exclude-variables))
1519		     (or (not (boundp (nth 1 expr)))
1520			 (not (equal (eval (nth 2 expr))
1521				     (symbol-value (nth 1 expr)))))
1522		     (push (nth 1 expr) olist)))))))
1523      (kill-buffer (current-buffer)))
1524    (when (setq olist (nreverse olist))
1525      (insert "------------------ Environment follows ------------------\n\n"))
1526    (while olist
1527      (if (boundp (car olist))
1528	  (ignore-errors
1529	   (gnus-pp
1530	    `(setq ,(car olist)
1531		   ,(if (or (consp (setq sym (symbol-value (car olist))))
1532			    (and (symbolp sym)
1533				 (not (or (eq sym nil)
1534					  (eq sym t)))))
1535			(list 'quote (symbol-value (car olist)))
1536		      (symbol-value (car olist))))))
1537	(insert ";; (makeunbound '" (symbol-name (car olist)) ")\n"))
1538      (setq olist (cdr olist)))
1539    (insert "\n\n")
1540    ;; Remove any control chars - they seem to cause trouble for some
1541    ;; mailers.  (Byte-compiled output from the stuff above.)
1542    (goto-char point)
1543    (while (re-search-forward (mm-string-as-multibyte
1544			       "[\000-\010\013-\037\200-\237]") nil t)
1545      (replace-match (format "\\%03o" (string-to-char (match-string 0)))
1546		     t t))))
1547
1548;;; Treatment of rejected articles.
1549;;; Bounced mail.
1550
1551(defun gnus-summary-resend-bounced-mail (&optional fetch)
1552  "Re-mail the current message.
1553This only makes sense if the current message is a bounce message that
1554contains some mail you have written which has been bounced back to
1555you.
1556If FETCH, try to fetch the article that this is a reply to, if indeed
1557this is a reply."
1558  (interactive "P")
1559  (gnus-summary-select-article t)
1560  (set-buffer gnus-original-article-buffer)
1561  (gnus-setup-message 'compose-bounce
1562    (let* ((references (mail-fetch-field "references"))
1563	   (parent (and references (gnus-parent-id references))))
1564      (message-bounce)
1565      ;; If there are references, we fetch the article we answered to.
1566      (and fetch parent
1567	   (gnus-summary-refer-article parent)
1568	   (gnus-summary-show-all-headers)))))
1569
1570;;; Gcc handling.
1571
1572(defun gnus-inews-group-method (group)
1573  (cond
1574   ;; If the group doesn't exist, we assume
1575   ;; it's an archive group...
1576   ((and (null (gnus-get-info group))
1577	 (eq (car (gnus-server-to-method gnus-message-archive-method))
1578	     (car (gnus-server-to-method (gnus-group-method group)))))
1579    gnus-message-archive-method)
1580   ;; Use the method.
1581   ((gnus-info-method (gnus-get-info group))
1582    (gnus-info-method (gnus-get-info group)))
1583   ;; Find the method.
1584   (t (gnus-server-to-method (gnus-group-method group)))))
1585
1586;; Do Gcc handling, which copied the message over to some group.
1587(defun gnus-inews-do-gcc (&optional gcc)
1588  (interactive)
1589  (save-excursion
1590    (save-restriction
1591      (message-narrow-to-headers)
1592      (let ((gcc (or gcc (mail-fetch-field "gcc" nil t)))
1593	    (cur (current-buffer))
1594	    groups group method group-art
1595	    mml-externalize-attachments)
1596	(when gcc
1597	  (message-remove-header "gcc")
1598	  (widen)
1599	  (setq groups (message-unquote-tokens
1600			(message-tokenize-header gcc " ,")))
1601	  ;; Copy the article over to some group(s).
1602	  (while (setq group (pop groups))
1603	    (unless (gnus-check-server
1604		     (setq method (gnus-inews-group-method group)))
1605	      (error "Can't open server %s" (if (stringp method) method
1606					      (car method))))
1607	    (unless (gnus-request-group group nil method)
1608	      (gnus-request-create-group group method))
1609	    (setq mml-externalize-attachments
1610		  (if (stringp gnus-gcc-externalize-attachments)
1611		      (string-match gnus-gcc-externalize-attachments group)
1612		    gnus-gcc-externalize-attachments))
1613	    (save-excursion
1614	      (nnheader-set-temp-buffer " *acc*")
1615	      (insert-buffer-substring cur)
1616	      (message-encode-message-body)
1617	      (save-restriction
1618		(message-narrow-to-headers)
1619		(let* ((mail-parse-charset message-default-charset)
1620		       (newsgroups-field (save-restriction
1621					   (message-narrow-to-headers-or-head)
1622					   (message-fetch-field "Newsgroups")))
1623		       (followup-field (save-restriction
1624					 (message-narrow-to-headers-or-head)
1625					 (message-fetch-field "Followup-To")))
1626		       ;; BUG: We really need to get the charset for
1627		       ;; each name in the Newsgroups and Followup-To
1628		       ;; lines to allow crossposting between group
1629		       ;; namess with incompatible character sets.
1630		       ;; -- Per Abrahamsen <abraham@dina.kvl.dk> 2001-10-08.
1631		       (group-field-charset
1632			(gnus-group-name-charset
1633			 method (or newsgroups-field "")))
1634		       (followup-field-charset
1635			(gnus-group-name-charset
1636			 method (or followup-field "")))
1637		       (rfc2047-header-encoding-alist
1638			(append
1639			 (when group-field-charset
1640			   (list (cons "Newsgroups" group-field-charset)))
1641			 (when followup-field-charset
1642			   (list (cons "Followup-To" followup-field-charset)))
1643			 rfc2047-header-encoding-alist)))
1644		  (mail-encode-encoded-word-buffer)))
1645	      (goto-char (point-min))
1646	      (when (re-search-forward
1647		     (concat "^" (regexp-quote mail-header-separator) "$")
1648		     nil t)
1649		(replace-match "" t t ))
1650	      (unless (setq group-art
1651			    (gnus-request-accept-article group method t t))
1652		(gnus-message 1 "Couldn't store article in group %s: %s"
1653			      group (gnus-status-message method))
1654		(sit-for 2))
1655	      (when (and group-art
1656			 ;; FIXME: Should gcc-mark-as-read work when
1657			 ;; Gnus is not running?
1658			 (gnus-alive-p)
1659			 (or gnus-gcc-mark-as-read
1660			     (and
1661			      (boundp 'gnus-inews-mark-gcc-as-read)
1662			      (symbol-value 'gnus-inews-mark-gcc-as-read))))
1663		(gnus-group-mark-article-read group (cdr group-art)))
1664	      (kill-buffer (current-buffer)))))))))
1665
1666(defun gnus-inews-insert-gcc ()
1667  "Insert Gcc headers based on `gnus-outgoing-message-group'."
1668  (save-excursion
1669    (save-restriction
1670      (message-narrow-to-headers)
1671      (let* ((group gnus-outgoing-message-group)
1672	     (gcc (cond
1673		   ((functionp group)
1674		    (funcall group))
1675		   ((or (stringp group) (listp group))
1676		    group))))
1677	(when gcc
1678	  (insert "Gcc: "
1679		  (if (stringp gcc)
1680		      (if (string-match " " gcc)
1681			  (concat "\"" gcc "\"")
1682			gcc)
1683		    (mapconcat (lambda (group)
1684				 (if (string-match " " group)
1685				     (concat "\"" group "\"")
1686				   group))
1687			       gcc " "))
1688		  "\n"))))))
1689
1690(defun gnus-inews-insert-archive-gcc (&optional group)
1691  "Insert the Gcc to say where the article is to be archived."
1692  (let* ((var gnus-message-archive-group)
1693	 (group (or group gnus-newsgroup-name ""))
1694	 (gcc-self-val
1695	  (and gnus-newsgroup-name
1696	       (not (equal gnus-newsgroup-name ""))
1697	       (gnus-group-find-parameter
1698		gnus-newsgroup-name 'gcc-self)))
1699	 result
1700	 (groups
1701	  (cond
1702	   ((null gnus-message-archive-method)
1703	    ;; Ignore.
1704	    nil)
1705	   ((stringp var)
1706	    ;; Just a single group.
1707	    (list var))
1708	   ((null var)
1709	    ;; We don't want this.
1710	    nil)
1711	   ((and (listp var) (stringp (car var)))
1712	    ;; A list of groups.
1713	    var)
1714	   ((functionp var)
1715	    ;; A function.
1716	    (funcall var group))
1717	   (t
1718	    ;; An alist of regexps/functions/forms.
1719	    (while (and var
1720			(not
1721			 (setq result
1722			       (cond
1723				((stringp (caar var))
1724				 ;; Regexp.
1725				 (when (string-match (caar var) group)
1726				   (cdar var)))
1727				((functionp (car var))
1728				 ;; Function.
1729				 (funcall (car var) group))
1730				(t
1731				 (eval (car var)))))))
1732	      (setq var (cdr var)))
1733	    result)))
1734	 name)
1735    (when (or groups gcc-self-val)
1736      (when (stringp groups)
1737	(setq groups (list groups)))
1738      (save-excursion
1739	(save-restriction
1740	  (message-narrow-to-headers)
1741	  (goto-char (point-max))
1742	  (insert "Gcc: ")
1743	  (if gcc-self-val
1744	      ;; Use the `gcc-self' param value instead.
1745	      (progn
1746		(insert
1747		 (if (stringp gcc-self-val)
1748		     (if (string-match " " gcc-self-val)
1749			 (concat "\"" gcc-self-val "\"")
1750		       gcc-self-val)
1751		   ;; In nndoc groups, we use the parent group name
1752		   ;; instead of the current group.
1753		   (let ((group (or (gnus-group-find-parameter
1754				     gnus-newsgroup-name 'parent-group)
1755				    group)))
1756		     (if (string-match " " group)
1757			 (concat "\"" group "\"")
1758		       group))))
1759		(if (not (eq gcc-self-val 'none))
1760		    (insert "\n")
1761		  (gnus-delete-line)))
1762	    ;; Use the list of groups.
1763	    (while (setq name (pop groups))
1764	      (let ((str (if (string-match ":" name)
1765			     name
1766			   (gnus-group-prefixed-name
1767			    name gnus-message-archive-method))))
1768		(insert (if (string-match " " str)
1769			    (concat "\"" str "\"")
1770			  str)))
1771	      (when groups
1772		(insert " ")))
1773	    (insert "\n")))))))
1774
1775(defun gnus-mailing-list-followup-to ()
1776  "Look at the headers in the current buffer and return a Mail-Followup-To address."
1777  (let ((x-been-there (gnus-fetch-original-field "x-beenthere"))
1778	(list-post (gnus-fetch-original-field "list-post")))
1779    (when (and list-post
1780	       (string-match "mailto:\\([^>]+\\)" list-post))
1781      (setq list-post (match-string 1 list-post)))
1782    (or list-post
1783	x-been-there)))
1784
1785;;; Posting styles.
1786
1787(defun gnus-configure-posting-styles (&optional group-name)
1788  "Configure posting styles according to `gnus-posting-styles'."
1789  (unless gnus-inhibit-posting-styles
1790    (let ((group (or group-name gnus-newsgroup-name ""))
1791	  (styles gnus-posting-styles)
1792	  style match attribute value v results
1793	  filep name address element)
1794      ;; If the group has a posting-style parameter, add it at the end with a
1795      ;; regexp matching everything, to be sure it takes precedence over all
1796      ;; the others.
1797      (when gnus-newsgroup-name
1798	(let ((tmp-style (gnus-group-find-parameter group 'posting-style t)))
1799	  (when tmp-style
1800	    (setq styles (append styles (list (cons ".*" tmp-style)))))))
1801      ;; Go through all styles and look for matches.
1802      (dolist (style styles)
1803	(setq match (pop style))
1804	(goto-char (point-min))
1805	(when (cond
1806	       ((stringp match)
1807		;; Regexp string match on the group name.
1808		(string-match match group))
1809	       ((eq match 'header)
1810		;; Obsolete format of header match.
1811		(and (gnus-buffer-live-p gnus-article-copy)
1812		     (with-current-buffer gnus-article-copy
1813		       (save-restriction
1814			 (nnheader-narrow-to-headers)
1815			 (let ((header (message-fetch-field (pop style))))
1816			   (and header
1817				(string-match (pop style) header)))))))
1818	       ((or (symbolp match)
1819		    (functionp match))
1820		(cond
1821		 ((functionp match)
1822		  ;; Function to be called.
1823		  (funcall match))
1824		 ((boundp match)
1825		  ;; Variable to be checked.
1826		  (symbol-value match))))
1827	       ((listp match)
1828		(cond
1829		 ((eq (car match) 'header)
1830		  ;; New format of header match.
1831		  (and (gnus-buffer-live-p gnus-article-copy)
1832		       (with-current-buffer gnus-article-copy
1833			 (save-restriction
1834			   (nnheader-narrow-to-headers)
1835			   (let ((header (message-fetch-field (nth 1 match))))
1836			     (and header
1837				  (string-match (nth 2 match) header)))))))
1838		 (t
1839		  ;; This is a form to be evaled.
1840		  (eval match)))))
1841	  ;; We have a match, so we set the variables.
1842	  (dolist (attribute style)
1843	    (setq element (pop attribute)
1844		  filep nil)
1845	    (setq value
1846		  (cond
1847		   ((eq (car attribute) :file)
1848		    (setq filep t)
1849		    (cadr attribute))
1850		   ((eq (car attribute) :value)
1851		    (cadr attribute))
1852		   (t
1853		    (car attribute))))
1854	    ;; We get the value.
1855	    (setq v
1856		  (cond
1857		   ((stringp value)
1858		    value)
1859		   ((or (symbolp value)
1860			(functionp value))
1861		    (cond ((functionp value)
1862			   (funcall value))
1863			  ((boundp value)
1864			   (symbol-value value))))
1865		   ((listp value)
1866		    (eval value))))
1867	    ;; Translate obsolescent value.
1868	    (cond
1869	     ((eq element 'signature-file)
1870	      (setq element 'signature
1871		    filep t))
1872	     ((eq element 'x-face-file)
1873	      (setq element 'x-face
1874		    filep t)))
1875	    ;; Get the contents of file elems.
1876	    (when (and filep v)
1877	      (setq v (with-temp-buffer
1878			(insert-file-contents v)
1879			(buffer-substring
1880			 (point-min)
1881			 (progn
1882			   (goto-char (point-max))
1883			   (if (zerop (skip-chars-backward "\n"))
1884			       (point)
1885			     (1+ (point))))))))
1886	    (setq results (delq (assoc element results) results))
1887	    (push (cons element v) results))))
1888      ;; Now we have all the styles, so we insert them.
1889      (setq name (assq 'name results)
1890	    address (assq 'address results))
1891      (setq results (delq name (delq address results)))
1892      (gnus-make-local-hook 'message-setup-hook)
1893      (setq results (sort results (lambda (x y)
1894				    (string-lessp (car x) (car y)))))
1895      (dolist (result results)
1896	(add-hook 'message-setup-hook
1897		  (cond
1898		   ((eq 'eval (car result))
1899		    'ignore)
1900		   ((eq 'body (car result))
1901		    `(lambda ()
1902		       (save-excursion
1903			 (message-goto-body)
1904			 (insert ,(cdr result)))))
1905		   ((eq 'signature (car result))
1906		    (set (make-local-variable 'message-signature) nil)
1907		    (set (make-local-variable 'message-signature-file) nil)
1908		    (if (not (cdr result))
1909			'ignore
1910		      `(lambda ()
1911			 (save-excursion
1912			   (let ((message-signature ,(cdr result)))
1913			     (when message-signature
1914			       (message-insert-signature)))))))
1915		   (t
1916		    (let ((header
1917			   (if (symbolp (car result))
1918			       (capitalize (symbol-name (car result)))
1919			     (car result))))
1920		      `(lambda ()
1921			 (save-excursion
1922			   (message-remove-header ,header)
1923			   (let ((value ,(cdr result)))
1924			     (when value
1925			       (message-goto-eoh)
1926			       (insert ,header ": " value)
1927			       (unless (bolp)
1928				 (insert "\n")))))))))
1929		  nil 'local))
1930      (when (or name address)
1931	(add-hook 'message-setup-hook
1932		  `(lambda ()
1933		     (set (make-local-variable 'user-mail-address)
1934			  ,(or (cdr address) user-mail-address))
1935		     (let ((user-full-name ,(or (cdr name) (user-full-name)))
1936			   (user-mail-address
1937			    ,(or (cdr address) user-mail-address)))
1938		       (save-excursion
1939			 (message-remove-header "From")
1940			 (message-goto-eoh)
1941			 (insert "From: " (message-make-from) "\n"))))
1942		  nil 'local)))))
1943
1944;;; Allow redefinition of functions.
1945
1946(gnus-ems-redefine)
1947
1948(provide 'gnus-msg)
1949
1950;;; arch-tag: 9f22b2f5-1c0a-49de-916e-4c88e984852b
1951;;; gnus-msg.el ends here
1952