Merge from emacs-23; up to 2010-05-28T19:18:47Z!juri@jurta.org.
[bpt/emacs.git] / lisp / mh-e / mh-comp.el
1 ;;; mh-comp.el --- MH-E functions for composing and sending messages
2
3 ;; Copyright (C) 1993, 1995, 1997, 2000-2011 Free Software Foundation, Inc.
4
5 ;; Author: Bill Wohler <wohler@newt.com>
6 ;; Maintainer: Bill Wohler <wohler@newt.com>
7 ;; Keywords: mail
8 ;; See: mh-e.el
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 3 of the License, or
15 ;; (at your option) 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. If not, see <http://www.gnu.org/licenses/>.
24
25 ;;; Commentary:
26
27 ;; This file includes the functions in the MH-Folder maps that get us
28 ;; into MH-Letter mode, as well the functions in the MH-Letter mode
29 ;; that are used to send the mail. Other that those, functions that
30 ;; are needed in mh-letter.el should be found there.
31
32 ;;; Change Log:
33
34 ;;; Code:
35
36 (require 'mh-e)
37 (require 'mh-gnus) ;needed because mh-gnus.el not compiled
38 (require 'mh-scan)
39
40 (require 'sendmail)
41
42 (autoload 'easy-menu-add "easymenu")
43 (autoload 'mml-insert-tag "mml")
44
45 \f
46
47 ;;; Site Customization
48
49 (defvar mh-send-prog "send"
50 "Name of the MH send program.
51 Some sites need to change this because of a name conflict.")
52
53 (defvar mh-send-uses-spost-flag nil
54 "Non-nil means \"send\" uses \"spost\" to submit messages.
55
56 If the value of \"postproc:\" is \"spost\", you may need to set
57 this variable to t to tell MH-E to avoid using features of
58 \"post\" that are not supported by \"spost\". You'll know that
59 you'll need to do this if sending mail fails with an error of
60 \"spost: -msgid unknown\".")
61
62 (defvar mh-redist-background nil
63 "If non-nil redist will be done in background like send.
64 This allows transaction log to be visible if -watch, -verbose or
65 -snoop are used.")
66
67 \f
68
69 ;;; Variables
70
71 (defvar mh-comp-formfile "components"
72 "Name of file to be used as a skeleton for composing messages.
73
74 Default is \"components\".
75
76 If not an absolute file name, the file is searched for first in the
77 user's MH directory, then in the system MH lib directory.")
78
79 (defvar mh-repl-formfile "replcomps"
80 "Name of file to be used as a skeleton for replying to messages.
81
82 Default is \"replcomps\".
83
84 If not an absolute file name, the file is searched for first in the
85 user's MH directory, then in the system MH lib directory.")
86
87 (defvar mh-repl-group-formfile "replgroupcomps"
88 "Name of file to be used as a skeleton for replying to messages.
89
90 Default is \"replgroupcomps\".
91
92 This file is used to form replies to the sender and all recipients of
93 a message. Only used if `(mh-variant-p 'nmh)' is non-nil.
94 If not an absolute file name, the file is searched for first in the
95 user's MH directory, then in the system MH lib directory.")
96
97 (defvar mh-rejected-letter-start
98 (format "^%s$"
99 (regexp-opt
100 '("Content-Type: message/rfc822" ;MIME MDN
101 "------ This is a copy of the message, including all the headers. ------";from exim
102 "--- Below this line is a copy of the message."; from qmail
103 " ----- Unsent message follows -----" ;from sendmail V5
104 " --------Unsent Message below:" ; from sendmail at BU
105 " ----- Original message follows -----" ;from sendmail V8
106 "------- Unsent Draft" ;from MH itself
107 "---------- Original Message ----------" ;from zmailer
108 " --- The unsent message follows ---" ;from AIX mail system
109 " Your message follows:" ;from MMDF-II
110 "Content-Description: Returned Content" ;1993 KJ sendmail
111 ))))
112
113 (defvar mh-new-draft-cleaned-headers
114 "^Date:\\|^Received:\\|^Message-Id:\\|^From:\\|^Sender:\\|^Errors-To:\\|^Delivery-Date:\\|^Return-Path:"
115 "Regexp of header lines to remove before offering a message as a new draft\\<mh-folder-mode-map>.
116 Used by the \\[mh-edit-again] and \\[mh-extract-rejected-mail] commands.")
117
118 (defvar mh-letter-mode-syntax-table
119 (let ((syntax-table (make-syntax-table text-mode-syntax-table)))
120 (modify-syntax-entry ?% "." syntax-table)
121 syntax-table)
122 "Syntax table used by MH-E while in MH-Letter mode.")
123
124 (defvar mh-send-args ""
125 "Extra args to pass to \"send\" command.")
126
127 (defvar mh-annotate-char nil
128 "Character to use to annotate `mh-sent-from-msg'.")
129
130 (defvar mh-annotate-field nil
131 "Field name for message annotation.")
132
133 (defvar mh-annotate-list nil
134 "Messages annotated, either a sequence name or a list of message numbers.
135 This variable can be used by `mh-annotate-msg-hook'.")
136
137 (defvar mh-insert-auto-fields-done-local nil
138 "Buffer-local variable set when `mh-insert-auto-fields' called successfully.")
139 (make-variable-buffer-local 'mh-insert-auto-fields-done-local)
140
141 \f
142
143 ;;; MH-E Entry Points
144
145 ;;;###autoload
146 (defun mh-smail ()
147 "Compose a message with the MH mail system.
148 See `mh-send' for more details on composing mail."
149 (interactive)
150 (mh-find-path)
151 (call-interactively 'mh-send))
152
153 ;;;###autoload
154 (defun mh-smail-other-window ()
155 "Compose a message with the MH mail system in other window.
156 See `mh-send' for more details on composing mail."
157 (interactive)
158 (mh-find-path)
159 (call-interactively 'mh-send-other-window))
160
161 (defun mh-send-other-window (to cc subject)
162 "Compose a message in another window.
163
164 See `mh-send' for more information and a description of how the
165 TO, CC, and SUBJECT arguments are used."
166 (interactive (list
167 (mh-interactive-read-address "To: ")
168 (mh-interactive-read-address "Cc: ")
169 (mh-interactive-read-string "Subject: ")))
170 (let ((pop-up-windows t))
171 (mh-send-sub to cc subject (current-window-configuration))))
172
173 (defvar mh-error-if-no-draft nil) ;raise error over using old draft
174
175 ;;;###autoload
176 (defun mh-smail-batch (&optional to subject other-headers &rest ignored)
177 "Compose a message with the MH mail system.
178
179 This function does not prompt the user for any header fields, and
180 thus is suitable for use by programs that want to create a mail
181 buffer. Users should use \\[mh-smail] to compose mail.
182
183 Optional arguments for setting certain fields include TO,
184 SUBJECT, and OTHER-HEADERS. Additional arguments are IGNORED.
185
186 This function remains for Emacs 21 compatibility. New
187 applications should use `mh-user-agent-compose'."
188 (mh-find-path)
189 (let ((mh-error-if-no-draft t))
190 (mh-send (or to "") "" (or subject ""))))
191
192 ;;;###autoload
193 (define-mail-user-agent 'mh-e-user-agent
194 'mh-user-agent-compose 'mh-send-letter 'mh-fully-kill-draft
195 'mh-before-send-letter-hook)
196
197 ;;;###autoload
198 (defun mh-user-agent-compose (&optional to subject other-headers continue
199 switch-function yank-action
200 send-actions return-action
201 &rest ignored)
202 "Set up mail composition draft with the MH mail system.
203 This is the `mail-user-agent' entry point to MH-E. This function
204 conforms to the contract specified by `define-mail-user-agent'
205 which means that this function should accept the same arguments
206 as `compose-mail'.
207
208 The optional arguments TO and SUBJECT specify recipients and the
209 initial Subject field, respectively.
210
211 OTHER-HEADERS is an alist specifying additional header fields.
212 Elements look like (HEADER . VALUE) where both HEADER and VALUE
213 are strings.
214
215 CONTINUE, SWITCH-FUNCTION, YANK-ACTION, SEND-ACTIONS, and
216 RETURN-ACTION are ignored."
217 (mh-find-path)
218 (let ((mh-error-if-no-draft t))
219 (mh-send to "" subject)
220 (while other-headers
221 (mh-insert-fields (concat (car (car other-headers)) ":")
222 (cdr (car other-headers)))
223 (setq other-headers (cdr other-headers)))))
224
225 ;; Shush compiler.
226 (defvar sendmail-coding-system) ; XEmacs
227
228 ;;;###autoload
229 (defun mh-send-letter (&optional arg)
230 "Save draft and send message.
231
232 When you are all through editing a message, you send it with this
233 command. You can give a prefix argument ARG to monitor the first stage
234 of the delivery\; this output can be found in a buffer called \"*MH-E
235 Mail Delivery*\".
236
237 The hook `mh-before-send-letter-hook' is run at the beginning of
238 this command. For example, if you want to check your spelling in
239 your message before sending, add the function `ispell-message'.
240
241 Unless `mh-insert-auto-fields' had previously been called
242 manually, the function `mh-insert-auto-fields' is called to
243 insert fields based upon the recipients. If fields are added, you
244 are given a chance to see and to confirm these fields before the
245 message is actually sent. You can do away with this confirmation
246 by turning off the option `mh-auto-fields-prompt-flag'.
247
248 In case the MH \"send\" program is installed under a different name,
249 use `mh-send-prog' to tell MH-E the name.
250
251 The hook `mh-annotate-msg-hook' is run after annotating the
252 message and scan line."
253 (interactive "P")
254 (run-hooks 'mh-before-send-letter-hook)
255 (if (and (mh-insert-auto-fields t)
256 mh-auto-fields-prompt-flag
257 (goto-char (point-min)))
258 (if (not (y-or-n-p "Auto fields inserted, send? "))
259 (error "Send aborted")))
260 (cond ((mh-mh-directive-present-p)
261 (mh-mh-to-mime))
262 ((or (mh-mml-tag-present-p) (not (mh-ascii-buffer-p)))
263 (mh-mml-to-mime)))
264 (save-buffer)
265 (message "Sending...")
266 (let ((draft-buffer (current-buffer))
267 (file-name buffer-file-name)
268 (config mh-previous-window-config)
269 (coding-system-for-write
270 (if (and (local-variable-p 'buffer-file-coding-system
271 (current-buffer)) ;XEmacs needs two args
272 ;; We're not sure why, but buffer-file-coding-system
273 ;; tends to get set to undecided-unix.
274 (not (memq buffer-file-coding-system
275 '(undecided undecided-unix undecided-dos))))
276 buffer-file-coding-system
277 (or (and (boundp 'sendmail-coding-system) sendmail-coding-system)
278 (and (default-boundp 'buffer-file-coding-system)
279 (default-value 'buffer-file-coding-system))
280 'iso-latin-1))))
281 ;; Older versions of spost do not support -msgid and -mime.
282 (unless mh-send-uses-spost-flag
283 ;; Adding a Message-ID field looks good, makes it easier to search for
284 ;; message in your +outbox, and best of all doesn't break threading for
285 ;; the recipient if you reply to a message in your +outbox.
286 (setq mh-send-args (concat "-msgid " mh-send-args))
287 ;; The default BCC encapsulation will make a MIME message unreadable.
288 ;; With nmh use the -mime arg to prevent this.
289 (if (and (mh-variant-p 'nmh)
290 (mh-goto-header-field "Bcc:")
291 (mh-goto-header-field "Content-Type:"))
292 (setq mh-send-args (concat "-mime " mh-send-args))))
293 (cond (arg
294 (pop-to-buffer mh-mail-delivery-buffer)
295 (erase-buffer)
296 (mh-exec-cmd-output mh-send-prog t
297 "-nodraftfolder" "-watch" "-nopush"
298 (split-string mh-send-args) file-name)
299 (goto-char (point-max)) ; show the interesting part
300 (recenter -1)
301 (set-buffer draft-buffer)) ; for annotation below
302 (t
303 (mh-exec-cmd-daemon mh-send-prog nil
304 "-nodraftfolder" "-noverbose"
305 (split-string mh-send-args) file-name)))
306 (if mh-annotate-char
307 (mh-annotate-msg mh-sent-from-msg
308 mh-sent-from-folder
309 mh-annotate-char
310 "-component" mh-annotate-field
311 "-text" (format "\"%s %s\""
312 (mh-get-header-field "To:")
313 (mh-get-header-field "Cc:"))))
314
315 (cond ((or (not arg)
316 (y-or-n-p "Kill draft buffer? "))
317 (kill-buffer draft-buffer)
318 (if config
319 (set-window-configuration config))))
320 (if arg
321 (message "Sending...done")
322 (message "Sending...backgrounded"))))
323
324 ;;;###autoload
325 (defun mh-fully-kill-draft ()
326 "Quit editing and delete draft message.
327
328 If for some reason you are not happy with the draft, you can use
329 this command to kill the draft buffer and delete the draft
330 message. Use the command \\[kill-buffer] if you don't want to
331 delete the draft message."
332 (interactive)
333 (if (y-or-n-p "Kill draft message? ")
334 (let ((config mh-previous-window-config))
335 (if (file-exists-p buffer-file-name)
336 (delete-file buffer-file-name))
337 (set-buffer-modified-p nil)
338 (kill-buffer (buffer-name))
339 (message "")
340 (if config
341 (set-window-configuration config)))
342 (error "Message not killed")))
343
344 \f
345
346 ;;; MH-Folder Commands
347
348 ;; Alphabetical.
349
350 ;;;###mh-autoload
351 (defun mh-edit-again (message)
352 "Edit a MESSAGE to send it again.
353
354 If you don't complete a draft for one reason or another, and if
355 the draft buffer is no longer available, you can pick your draft
356 up again with this command. If you don't use a draft folder, your
357 last \"draft\" file will be used. If you use draft folders,
358 you'll need to visit the draft folder with \"\\[mh-visit-folder]
359 drafts <RET>\", use \\[mh-next-undeleted-msg] to move to the
360 appropriate message, and then use \\[mh-edit-again] to prepare
361 the message for editing.
362
363 This command can also be used to take messages that were sent to
364 you and to send them to more people.
365
366 Don't use this command to re-edit a message from a Mailer-Daemon
367 who complained that your mail wasn't posted for some reason or
368 another (see `mh-extract-rejected-mail').
369
370 The default message is the current message.
371
372 See also `mh-send'."
373 (interactive (list (mh-get-msg-num t)))
374 (let* ((from-folder mh-current-folder)
375 (config (current-window-configuration))
376 (draft
377 (cond ((and mh-draft-folder (equal from-folder mh-draft-folder))
378 (pop-to-buffer (find-file-noselect (mh-msg-filename message))
379 t)
380 (rename-buffer (format "draft-%d" message))
381 ;; Make buffer writable...
382 (setq buffer-read-only nil)
383 ;; If buffer was being used to display the message reinsert
384 ;; from file...
385 (when (eq major-mode 'mh-show-mode)
386 (erase-buffer)
387 (insert-file-contents buffer-file-name))
388 (buffer-name))
389 (t
390 (mh-read-draft "clean-up" (mh-msg-filename message) nil)))))
391 (mh-clean-msg-header (point-min) mh-new-draft-cleaned-headers nil)
392 (mh-insert-header-separator)
393 (goto-char (point-min))
394 (save-buffer)
395 (mh-compose-and-send-mail draft "" from-folder nil nil nil nil nil nil
396 config)
397 (mh-letter-mode-message)
398 (mh-letter-adjust-point)))
399
400 ;;;###mh-autoload
401 (defun mh-extract-rejected-mail (message)
402 "Edit a MESSAGE that was returned by the mail system.
403
404 This command prepares the message for editing by removing the
405 Mailer-Daemon envelope and unneeded header fields. Fix whatever
406 addressing problem you had, and send the message again with
407 \\[mh-send-letter].
408
409 The default message is the current message.
410
411 See also `mh-send'."
412 (interactive (list (mh-get-msg-num t)))
413 (let ((from-folder mh-current-folder)
414 (config (current-window-configuration))
415 (draft (mh-read-draft "extraction" (mh-msg-filename message) nil)))
416 (goto-char (point-min))
417 (cond ((re-search-forward mh-rejected-letter-start nil t)
418 (skip-chars-forward " \t\n")
419 (delete-region (point-min) (point))
420 (mh-clean-msg-header (point-min) mh-new-draft-cleaned-headers nil))
421 (t
422 (message "Does not appear to be a rejected letter")))
423 (mh-insert-header-separator)
424 (goto-char (point-min))
425 (save-buffer)
426 (mh-compose-and-send-mail draft "" from-folder message
427 (mh-get-header-field "To:")
428 (mh-get-header-field "From:")
429 (mh-get-header-field "Cc:")
430 nil nil config)
431 (mh-letter-mode-message)))
432
433 ;;;###mh-autoload
434 (defun mh-forward (to cc &optional range)
435 "Forward message.
436
437 You are prompted for the TO and CC recipients. You are given a
438 draft to edit that looks like it would if you had run the MH
439 command \"forw\". You can then add some text.
440
441 You can forward several messages by using a RANGE. All of the
442 messages in the range are inserted into your draft. Check the
443 documentation of `mh-interactive-range' to see how RANGE is read
444 in interactive use.
445
446 The hook `mh-forward-hook' is called on the draft.
447
448 See also `mh-compose-forward-as-mime-flag',
449 `mh-forward-subject-format', and `mh-send'."
450 (interactive (list (mh-interactive-read-address "To: ")
451 (mh-interactive-read-address "Cc: ")
452 (mh-interactive-range "Forward")))
453 (let* ((folder mh-current-folder)
454 (msgs (mh-range-to-msg-list range))
455 (config (current-window-configuration))
456 (fwd-msg-file (mh-msg-filename (car msgs) folder))
457 ;; forw always leaves file in "draft" since it doesn't have -draft
458 (draft-name (expand-file-name "draft" mh-user-path))
459 (draft (cond ((or (not (file-exists-p draft-name))
460 (y-or-n-p "The file draft exists; discard it? "))
461 (mh-exec-cmd "forw" "-build"
462 (if (and (mh-variant-p 'nmh)
463 mh-compose-forward-as-mime-flag)
464 "-mime")
465 mh-current-folder
466 (mh-coalesce-msg-list msgs))
467 (prog1
468 (mh-read-draft "" draft-name t)
469 (mh-insert-fields "To:" to "Cc:" cc)
470 (save-buffer)))
471 (t
472 (mh-read-draft "" draft-name nil)))))
473 (let (orig-from
474 orig-subject)
475 (with-current-buffer (get-buffer-create mh-temp-buffer)
476 (erase-buffer)
477 (insert-file-contents fwd-msg-file)
478 (setq orig-from (mh-get-header-field "From:"))
479 (setq orig-subject (mh-get-header-field "Subject:")))
480 (let ((forw-subject
481 (mh-forwarded-letter-subject orig-from orig-subject)))
482 (mh-insert-fields "Subject:" forw-subject)
483 (goto-char (point-min))
484 ;; If using MML, translate MH-style directive
485 (if (equal mh-compose-insertion 'mml)
486 (save-excursion
487 (goto-char (mh-mail-header-end))
488 (while
489 (re-search-forward
490 "^#forw \\[\\([^]]+\\)\\] \\(+\\S-+\\) \\(.*\\)$"
491 (point-max) t)
492 (let ((description (if (equal (match-string 1)
493 "forwarded messages")
494 "forwarded message %d"
495 (match-string 1)))
496 (msgs (split-string (match-string 3)))
497 (i 0))
498 (beginning-of-line)
499 (delete-region (point) (progn (forward-line 1) (point)))
500 (dolist (msg msgs)
501 (setq i (1+ i))
502 (mh-mml-forward-message (format description i)
503 folder msg)
504 ;; Was inserted before us, move to end of file to preserve order
505 (goto-char (point-max)))))))
506 ;; Postition just before forwarded message
507 (if (re-search-forward "^------- Forwarded Message" nil t)
508 (forward-line -1)
509 (goto-char (mh-mail-header-end))
510 (forward-line 1))
511 (delete-other-windows)
512 (mh-add-msgs-to-seq msgs 'forwarded t)
513 (mh-compose-and-send-mail draft "" folder msgs
514 to forw-subject cc
515 mh-note-forw "Forwarded:"
516 config)
517 (mh-letter-mode-message)
518 (mh-letter-adjust-point)
519 (run-hooks 'mh-forward-hook)))))
520
521 (defun mh-forwarded-letter-subject (from subject)
522 "Return a Subject suitable for a forwarded message.
523 Original message has headers FROM and SUBJECT."
524 (let ((addr-start (string-match "<" from))
525 (comment (string-match "(" from)))
526 (cond ((and addr-start (> addr-start 0))
527 ;; Full Name <luser@host>
528 (setq from (substring from 0 (1- addr-start))))
529 (comment
530 ;; luser@host (Full Name)
531 (setq from (substring from (1+ comment) (1- (length from)))))))
532 (format mh-forward-subject-format from subject))
533
534 ;;;###mh-autoload
535 (defun mh-redistribute (to cc &optional message)
536 "Redistribute a message.
537
538 This command is similar in function to forwarding mail, but it
539 does not allow you to edit the message, nor does it add your name
540 to the \"From\" header field. It appears to the recipient as if
541 the message had come from the original sender. When you run this
542 command, you are prompted for the TO and CC recipients. The
543 default MESSAGE is the current message.
544
545 Also investigate the command \\[mh-edit-again] for another way to
546 redistribute messages.
547
548 See also `mh-redist-full-contents-flag'.
549
550 The hook `mh-annotate-msg-hook' is run after annotating the
551 message and scan line."
552 (interactive (list (mh-read-address "Redist-To: ")
553 (mh-read-address "Redist-Cc: ")
554 (mh-get-msg-num t)))
555 (or message
556 (setq message (mh-get-msg-num t)))
557 (save-window-excursion
558 (let ((folder mh-current-folder)
559 (draft (mh-read-draft "redistribution"
560 (if mh-redist-full-contents-flag
561 (mh-msg-filename message)
562 nil)
563 nil)))
564 (mh-goto-header-end 0)
565 (insert "Resent-To: " to "\n")
566 (if (not (equal cc "")) (insert "Resent-cc: " cc "\n"))
567 (mh-clean-msg-header
568 (point-min)
569 "^Message-Id:\\|^Received:\\|^Return-Path:\\|^Sender:\\|^Date:\\|^From:"
570 nil)
571 (save-buffer)
572 (message "Redistributing...")
573 (let ((env "mhdist=1"))
574 ;; Setup environment...
575 (setq env (concat env " mhaltmsg="
576 (if mh-redist-full-contents-flag
577 buffer-file-name
578 (mh-msg-filename message folder))))
579 (unless mh-redist-full-contents-flag
580 (setq env (concat env " mhannotate=1")))
581 ;; Redistribute...
582 (if mh-redist-background
583 (mh-exec-cmd-env-daemon env mh-send-prog nil buffer-file-name)
584 (mh-exec-cmd-error env mh-send-prog "-push" buffer-file-name))
585 ;; Annotate...
586 (mh-annotate-msg message folder mh-note-dist
587 "-component" "Resent:"
588 "-text" (format "\"%s %s\"" to cc)))
589 (kill-buffer draft)
590 (message "Redistributing...done"))))
591
592 ;;;###mh-autoload
593 (defun mh-reply (message &optional reply-to includep)
594 "Reply to a MESSAGE.
595
596 When you reply to a message, you are first prompted with \"Reply
597 to whom?\" (unless the optional argument REPLY-TO is provided).
598 You have several choices here.
599
600 Response Reply Goes To
601
602 from The person who sent the message. This is the
603 default, so <RET> is sufficient.
604
605 to Replies to the sender, plus all recipients in the
606 \"To:\" header field.
607
608 all cc Forms a reply to the addresses in the
609 \"Mail-Followup-To:\" header field if one
610 exists; otherwise forms a reply to the sender,
611 plus all recipients.
612
613 Depending on your answer, \"repl\" is given a different argument
614 to form your reply. Specifically, a choice of \"from\" or none at
615 all runs \"repl -nocc all\", and a choice of \"to\" runs \"repl
616 -cc to\". Finally, either \"cc\" or \"all\" runs \"repl -cc all
617 -nocc me\".
618
619 Two windows are then created. One window contains the message to
620 which you are replying in an MH-Show buffer. Your draft, in
621 MH-Letter mode (*note `mh-letter-mode'), is in the other window.
622 If the reply draft was not one that you expected, check the
623 things that affect the behavior of \"repl\" which include the
624 \"repl:\" profile component and the \"replcomps\" and
625 \"replgroupcomps\" files.
626
627 If you supply a prefix argument INCLUDEP, the message you are
628 replying to is inserted in your reply after having first been run
629 through \"mhl\" with the format file \"mhl.reply\".
630
631 Alternatively, you can customize the option `mh-yank-behavior'
632 and choose one of its \"Automatically\" variants to do the same
633 thing. If you do so, the prefix argument has no effect.
634
635 Another way to include the message automatically in your draft is
636 to use \"repl: -filter repl.filter\" in your MH profile.
637
638 If you wish to customize the header or other parts of the reply
639 draft, please see \"repl\" and \"mh-format\".
640
641 See also `mh-reply-show-message-flag',
642 `mh-reply-default-reply-to', and `mh-send'."
643 (interactive (list
644 (mh-get-msg-num t)
645 (let ((minibuffer-help-form
646 "from => Sender only\nto => Sender and primary recipients\ncc or all => Sender and all recipients"))
647 (or mh-reply-default-reply-to
648 (completing-read "Reply to whom (default from): "
649 '(("from") ("to") ("cc") ("all"))
650 nil
651 t)))
652 current-prefix-arg))
653 (let* ((folder mh-current-folder)
654 (show-buffer mh-show-buffer)
655 (config (current-window-configuration))
656 (group-reply (or (equal reply-to "cc") (equal reply-to "all")))
657 (form-file (cond ((and (mh-variant-p 'nmh 'gnu-mh) group-reply
658 (stringp mh-repl-group-formfile))
659 mh-repl-group-formfile)
660 ((stringp mh-repl-formfile) mh-repl-formfile)
661 (t nil))))
662 (message "Composing a reply...")
663 (mh-exec-cmd "repl" "-build" "-noquery" "-nodraftfolder"
664 (if form-file
665 (list "-form" form-file))
666 mh-current-folder message
667 (cond ((or (equal reply-to "from") (equal reply-to ""))
668 '("-nocc" "all"))
669 ((equal reply-to "to")
670 '("-cc" "to"))
671 (group-reply (if (mh-variant-p 'nmh 'gnu-mh)
672 '("-group" "-nocc" "me")
673 '("-cc" "all" "-nocc" "me"))))
674 (cond ((or (eq mh-yank-behavior 'autosupercite)
675 (eq mh-yank-behavior 'autoattrib))
676 '("-noformat"))
677 (includep '("-filter" "mhl.reply"))
678 (t '())))
679 (let ((draft (mh-read-draft "reply"
680 (expand-file-name "reply" mh-user-path)
681 t)))
682 (delete-other-windows)
683 (save-buffer)
684
685 (let ((to (mh-get-header-field "To:"))
686 (subject (mh-get-header-field "Subject:"))
687 (cc (mh-get-header-field "Cc:")))
688 (goto-char (point-min))
689 (mh-goto-header-end 1)
690 (or includep
691 (not mh-reply-show-message-flag)
692 (mh-in-show-buffer (show-buffer)
693 (mh-display-msg message folder)))
694 (mh-add-msgs-to-seq message 'answered t)
695 (message "Composing a reply...done")
696 (mh-compose-and-send-mail draft "" folder message to subject cc
697 mh-note-repl "Replied:" config))
698 (when (and (or (eq 'autosupercite mh-yank-behavior)
699 (eq 'autoattrib mh-yank-behavior))
700 (eq (mh-show-buffer-message-number) mh-sent-from-msg))
701 (undo-boundary)
702 (mh-yank-cur-msg))
703 (mh-letter-mode-message))))
704
705 ;;;###mh-autoload
706 (defun mh-send (to cc subject)
707 "Compose a message.
708
709 Your letter appears in an Emacs buffer whose mode is
710 MH-Letter (see `mh-letter-mode').
711
712 The arguments TO, CC, and SUBJECT can be used to prefill the
713 draft fields or suppress the prompts if `mh-compose-prompt-flag'
714 is on. They are also passed to the function set in the option
715 `mh-compose-letter-function'.
716
717 See also `mh-insert-x-mailer-flag' and `mh-letter-mode-hook'.
718
719 Outside of an MH-Folder buffer (`mh-folder-mode'), you must call
720 either \\[mh-smail] or \\[mh-smail-other-window] to compose a new
721 message."
722 (interactive (list
723 (mh-interactive-read-address "To: ")
724 (mh-interactive-read-address "Cc: ")
725 (mh-interactive-read-string "Subject: ")))
726 (let ((config (current-window-configuration)))
727 (delete-other-windows)
728 (mh-send-sub to cc subject config)))
729
730 \f
731
732 ;;; Support Routines
733
734 (defun mh-interactive-read-address (prompt)
735 "Read an address.
736 If `mh-compose-prompt-flag' is non-nil, then read an address with
737 PROMPT.
738 Otherwise return the empty string."
739 (if mh-compose-prompt-flag (mh-read-address prompt) ""))
740
741 (defun mh-interactive-read-string (prompt)
742 "Read a string.
743 If `mh-compose-prompt-flag' is non-nil, then read a string with
744 PROMPT.
745 Otherwise return the empty string."
746 (if mh-compose-prompt-flag (read-string prompt) ""))
747
748 ;;;###mh-autoload
749 (defun mh-show-buffer-message-number (&optional buffer)
750 "Message number of displayed message in corresponding show buffer.
751
752 Return nil if show buffer not displayed.
753 If in `mh-letter-mode', don't display the message number being replied
754 to, but rather the message number of the show buffer associated with
755 our originating folder buffer.
756 Optional argument BUFFER can be used to specify the buffer."
757 (save-excursion
758 (if buffer
759 (set-buffer buffer))
760 (cond ((eq major-mode 'mh-show-mode)
761 (let ((number-start (mh-search-from-end ?/ buffer-file-name)))
762 (string-to-number (substring buffer-file-name
763 (1+ number-start)))))
764 ((and (eq major-mode 'mh-folder-mode)
765 mh-show-buffer
766 (get-buffer mh-show-buffer))
767 (mh-show-buffer-message-number mh-show-buffer))
768 ((and (eq major-mode 'mh-letter-mode)
769 mh-sent-from-folder
770 (get-buffer mh-sent-from-folder))
771 (mh-show-buffer-message-number mh-sent-from-folder))
772 (t
773 nil))))
774
775 (defun mh-send-sub (to cc subject config)
776 "Do the real work of composing and sending a letter.
777 Expects the TO, CC, and SUBJECT fields as arguments.
778 CONFIG is the window configuration before sending mail."
779 (let ((folder mh-current-folder)
780 (msg-num (mh-get-msg-num nil)))
781 (message "Composing a message...")
782 (let ((draft (mh-read-draft
783 "message"
784 (let (components)
785 (cond
786 ((file-exists-p
787 (setq components
788 (expand-file-name mh-comp-formfile mh-user-path)))
789 components)
790 ((file-exists-p
791 (setq components
792 (expand-file-name mh-comp-formfile mh-lib)))
793 components)
794 (t
795 (error "Can't find %s in %s or %s"
796 mh-comp-formfile mh-user-path mh-lib))))
797 nil)))
798 (mh-insert-fields "To:" to "Subject:" subject "Cc:" cc)
799 (goto-char (point-max))
800 (mh-compose-and-send-mail draft "" folder msg-num
801 to subject cc
802 nil nil config)
803 (mh-letter-mode-message)
804 (mh-letter-adjust-point))))
805
806 (defun mh-read-draft (use initial-contents delete-contents-file)
807 "Read draft file into a draft buffer and make that buffer the current one.
808
809 USE is a message used for prompting about the intended use of the
810 message.
811 INITIAL-CONTENTS is filename that is read into an empty buffer, or nil
812 if buffer should not be modified. Delete the initial-contents file if
813 DELETE-CONTENTS-FILE flag is set.
814 Returns the draft folder's name.
815 If the draft folder facility is enabled in ~/.mh_profile, a new buffer
816 is used each time and saved in the draft folder. The draft file can
817 then be reused."
818 (cond (mh-draft-folder
819 (let ((orig-default-dir default-directory)
820 (draft-file-name (mh-new-draft-name)))
821 (pop-to-buffer (generate-new-buffer
822 (format "draft-%s"
823 (file-name-nondirectory draft-file-name))))
824 (condition-case ()
825 (insert-file-contents draft-file-name t)
826 (file-error))
827 (setq default-directory orig-default-dir)))
828 (t
829 (let ((draft-name (expand-file-name "draft" mh-user-path)))
830 (pop-to-buffer "draft") ; Create if necessary
831 (if (buffer-modified-p)
832 (if (y-or-n-p "Draft has been modified; kill anyway? ")
833 (set-buffer-modified-p nil)
834 (error "Draft preserved")))
835 (setq buffer-file-name draft-name)
836 (clear-visited-file-modtime)
837 (unlock-buffer)
838 (cond ((and (file-exists-p draft-name)
839 (not (equal draft-name initial-contents)))
840 (insert-file-contents draft-name)
841 (delete-file draft-name))))))
842 (cond ((and initial-contents
843 (or (zerop (buffer-size))
844 (if (y-or-n-p
845 (format "A draft exists. Use for %s? " use))
846 (if mh-error-if-no-draft
847 (error "A prior draft exists"))
848 t)))
849 (erase-buffer)
850 (insert-file-contents initial-contents)
851 (if delete-contents-file (delete-file initial-contents))))
852 (auto-save-mode 1)
853 (if mh-draft-folder
854 (save-buffer)) ; Do not reuse draft name
855 (buffer-name))
856
857 (defun mh-new-draft-name ()
858 "Return the pathname of folder for draft messages."
859 (save-excursion
860 (mh-exec-cmd-quiet t "mhpath" mh-draft-folder "new")
861 (buffer-substring (point-min) (1- (point-max)))))
862
863 (defun mh-insert-fields (&rest name-values)
864 "Insert the NAME-VALUES pairs in the current buffer.
865 If the field exists, append the value to it.
866 Do not insert any pairs whose value is the empty string."
867 (let ((case-fold-search t))
868 (while name-values
869 (let ((field-name (car name-values))
870 (value (car (cdr name-values))))
871 (if (not (string-match "^.*:$" field-name))
872 (setq field-name (concat field-name ":")))
873 (cond ((or (null value)
874 (equal value ""))
875 nil)
876 ((mh-position-on-field field-name)
877 (insert " " (or value "")))
878 (t
879 (insert field-name " " value "\n")))
880 (setq name-values (cdr (cdr name-values)))))))
881
882 (defun mh-compose-and-send-mail (draft send-args
883 sent-from-folder sent-from-msg
884 to subject cc
885 annotate-char annotate-field
886 config)
887 "Edit and compose a draft message in buffer DRAFT and send or save it.
888 SEND-ARGS is the argument passed to the send command.
889 SENT-FROM-FOLDER is buffer containing scan listing of current folder,
890 or nil if none exists.
891 SENT-FROM-MSG is the message number or sequence name or nil.
892 The TO, SUBJECT, and CC fields are passed to the
893 `mh-compose-letter-function'.
894 If ANNOTATE-CHAR is non-null, it is used to notate the scan listing of
895 the message. In that case, the ANNOTATE-FIELD is used to build a
896 string for `mh-annotate-msg'.
897 CONFIG is the window configuration to restore after sending the
898 letter."
899 (pop-to-buffer draft)
900 (mh-letter-mode)
901
902 ;; Insert identity.
903 (mh-insert-identity mh-identity-default t)
904 (mh-identity-make-menu)
905 (mh-identity-add-menu)
906
907 ;; Cleanup possibly RFC2047 encoded subject header
908 (mh-decode-message-subject)
909
910 ;; Insert extra fields.
911 (mh-insert-x-mailer)
912 (mh-insert-x-face)
913
914 (mh-letter-hide-all-skipped-fields)
915
916 (setq mh-sent-from-folder sent-from-folder)
917 (setq mh-sent-from-msg sent-from-msg)
918 (setq mh-send-args send-args)
919 (setq mh-annotate-char annotate-char)
920 (setq mh-annotate-field annotate-field)
921 (setq mh-previous-window-config config)
922 (setq mode-line-buffer-identification (list " {%b}"))
923 (mh-logo-display)
924 (mh-make-local-hook 'kill-buffer-hook)
925 (add-hook 'kill-buffer-hook 'mh-tidy-draft-buffer nil t)
926 (run-hook-with-args 'mh-compose-letter-function to subject cc))
927
928 (defun mh-insert-x-mailer ()
929 "Append an X-Mailer field to the header.
930 The versions of MH-E, Emacs, and MH are shown."
931 ;; Lazily initialize mh-x-mailer-string.
932 (when (and mh-insert-x-mailer-flag (null mh-x-mailer-string))
933 (setq mh-x-mailer-string
934 (format "MH-E %s; %s; %sEmacs %s"
935 mh-version mh-variant-in-use
936 (if (featurep 'xemacs) "X" "GNU ")
937 (cond ((not (featurep 'xemacs))
938 (string-match "[0-9]+\\.[0-9]+\\(\\.[0-9]+\\)?"
939 emacs-version)
940 (match-string 0 emacs-version))
941 ((string-match "[0-9.]*\\( +\([ a-z]+[0-9]+\)\\)?"
942 emacs-version)
943 (match-string 0 emacs-version))
944 (t (format "%s.%s" emacs-major-version
945 emacs-minor-version))))))
946 ;; Insert X-Mailer, but only if it doesn't already exist.
947 (save-excursion
948 (when (and mh-insert-x-mailer-flag
949 (null (mh-goto-header-field "X-Mailer")))
950 (mh-insert-fields "X-Mailer:" mh-x-mailer-string))))
951
952 (defun mh-insert-x-face ()
953 "Append X-Face, Face or X-Image-URL field to header.
954 If the field already exists, this function does nothing."
955 (when (and (file-exists-p mh-x-face-file)
956 (file-readable-p mh-x-face-file))
957 (save-excursion
958 (unless (or (mh-position-on-field "X-Face")
959 (mh-position-on-field "Face")
960 (mh-position-on-field "X-Image-URL"))
961 (save-excursion
962 (goto-char (+ (point) (cadr (insert-file-contents mh-x-face-file))))
963 (if (not (looking-at "^"))
964 (insert "\n")))
965 (unless (looking-at "\\(X-Face\\|Face\\|X-Image-URL\\): ")
966 (insert "X-Face: "))))))
967
968 (defun mh-tidy-draft-buffer ()
969 "Run when a draft buffer is destroyed."
970 (let ((buffer (get-buffer mh-recipients-buffer)))
971 (if buffer
972 (kill-buffer buffer))))
973
974 (defun mh-letter-mode-message ()
975 "Display a help message for users of `mh-letter-mode'.
976 This should be the last function called when composing the draft."
977 (message "%s" (substitute-command-keys
978 (concat "Type \\[mh-send-letter] to send message, "
979 "\\[mh-help] for help"))))
980
981 (defun mh-letter-adjust-point ()
982 "Move cursor to first header field if are using the no prompt mode."
983 (unless mh-compose-prompt-flag
984 (goto-char (point-max))
985 (mh-letter-next-header-field)))
986
987 (defun mh-annotate-msg (msg folder note &rest args)
988 "Mark MSG in FOLDER with character NOTE and annotate message with ARGS.
989 MSG can be a message number, a list of message numbers, or a sequence.
990 The hook `mh-annotate-msg-hook' is run after annotating; see its
991 documentation for variables it can use."
992 (apply 'mh-exec-cmd "anno" folder
993 (if (listp msg) (append msg args) (cons msg args)))
994 (save-excursion
995 (cond ((get-buffer folder) ; Buffer may be deleted
996 (set-buffer folder)
997 (mh-iterate-on-range nil msg
998 (mh-notate nil note
999 (+ mh-cmd-note mh-scan-field-destination-offset))))))
1000 (let ((mh-current-folder folder)
1001 ;; mh-annotate-list is a sequence name or a list of message numbers
1002 (mh-annotate-list (if (numberp msg) (list msg) msg)))
1003 (run-hooks 'mh-annotate-msg-hook)))
1004
1005 (defun mh-insert-header-separator ()
1006 "Insert `mh-mail-header-separator', if absent."
1007 (save-excursion
1008 (goto-char (point-min))
1009 (rfc822-goto-eoh)
1010 (if (looking-at "$")
1011 (insert mh-mail-header-separator))))
1012
1013 ;;;###mh-autoload
1014 (defun mh-insert-auto-fields (&optional non-interactive)
1015 "Insert custom fields if recipient is found in `mh-auto-fields-list'.
1016
1017 Once the header contains one or more recipients, you may run this
1018 command to insert these fields manually. However, if you use this
1019 command, the automatic insertion when the message is sent is
1020 disabled.
1021
1022 In a program, set buffer-local `mh-insert-auto-fields-done-local'
1023 if header fields were added. If NON-INTERACTIVE is non-nil,
1024 perform actions quietly and only if
1025 `mh-insert-auto-fields-done-local' is nil. Return t if fields
1026 added; otherwise return nil."
1027 (interactive)
1028 (when (or (not non-interactive)
1029 (not mh-insert-auto-fields-done-local))
1030 (save-excursion
1031 (when (and (or (mh-goto-header-field "To:")
1032 (mh-goto-header-field "cc:")))
1033 (let ((list mh-auto-fields-list)
1034 (fields-inserted nil))
1035 (while list
1036 (let ((regexp (nth 0 (car list)))
1037 (entries (nth 1 (car list))))
1038 (when (mh-regexp-in-field-p regexp "To:" "cc:")
1039 (setq mh-insert-auto-fields-done-local t)
1040 (setq fields-inserted t)
1041 (if (not non-interactive)
1042 (message "Fields for %s added" regexp))
1043 (let ((entry-list entries))
1044 (while entry-list
1045 (let ((field (caar entry-list))
1046 (value (cdar entry-list)))
1047 (cond
1048 ((equal ":identity" field)
1049 (when
1050 ;;(and (not mh-identity-local)
1051 ;; Bug 1204506. But do we need to be able
1052 ;; to set an identity manually that won't be
1053 ;; overridden by mh-insert-auto-fields?
1054 (assoc value mh-identity-list)
1055 ;;)
1056 (mh-insert-identity value)))
1057 (t
1058 (mh-modify-header-field field value
1059 (equal field "From")))))
1060 (setq entry-list (cdr entry-list))))))
1061 (setq list (cdr list)))
1062 fields-inserted)))))
1063
1064 (defun mh-modify-header-field (field value &optional overwrite-flag)
1065 "To header FIELD add VALUE.
1066 If OVERWRITE-FLAG is non-nil then the old value, if present, is
1067 discarded."
1068 (cond ((and overwrite-flag
1069 (mh-goto-header-field (concat field ":")))
1070 (insert " " value)
1071 (delete-region (point) (mh-line-end-position)))
1072 ((and (not overwrite-flag)
1073 (mh-regexp-in-field-p (concat "\\b" value "\\b") field))
1074 ;; Already there, do nothing.
1075 )
1076 ((and (not overwrite-flag)
1077 (mh-goto-header-field (concat field ":")))
1078 (insert " " value ","))
1079 (t
1080 (mh-goto-header-end 0)
1081 (insert field ": " value "\n"))))
1082
1083 (defun mh-regexp-in-field-p (regexp &rest fields)
1084 "Non-nil means REGEXP was found in FIELDS."
1085 (save-excursion
1086 (let ((search-result nil)
1087 (field))
1088 (while fields
1089 (setq field (car fields))
1090 (if (and (mh-goto-header-field field)
1091 (re-search-forward
1092 regexp (save-excursion (mh-header-field-end)(point)) t))
1093 (setq fields nil
1094 search-result t)
1095 (setq fields (cdr fields))))
1096 search-result)))
1097
1098 (defun mh-ascii-buffer-p ()
1099 "Check if current buffer is entirely composed of ASCII.
1100 The function doesn't work for XEmacs since `find-charset-region'
1101 doesn't exist there."
1102 (loop for charset in (mh-funcall-if-exists
1103 find-charset-region (point-min) (point-max))
1104 unless (eq charset 'ascii) return nil
1105 finally return t))
1106
1107 (provide 'mh-comp)
1108
1109 ;; Local Variables:
1110 ;; indent-tabs-mode: nil
1111 ;; sentence-end-double-space: nil
1112 ;; End:
1113
1114 ;;; mh-comp.el ends here