1 ;;; mh-folder.el --- MH-Folder mode
3 ;; Copyright (C) 2002-2003, 2005-2013 Free Software Foundation, Inc.
5 ;; Author: Bill Wohler <wohler@newt.com>
6 ;; Maintainer: Bill Wohler <wohler@newt.com>
10 ;; This file is part of GNU Emacs.
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.
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.
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/>.
27 ;; Mode for browsing folders
37 ;; Dynamically-created functions not found in mh-loaddefs.el.
38 (autoload 'mh-tool-bar-folder-buttons-init "mh-tool-bar")
39 (autoload 'mh-tool-bar-init "mh-tool-bar")
42 (autoload 'message-fetch-field "message")
49 (defun mh-rmail (&optional arg)
50 "Incorporate new mail with MH.
51 Scan an MH folder if ARG is non-nil.
53 This function is an entry point to MH-E, the Emacs interface to
58 (call-interactively 'mh-visit-folder)
59 (unless (get-buffer mh-inbox)
60 (mh-visit-folder mh-inbox (symbol-name mh-unseen-seq)))
64 (defun mh-nmail (&optional arg)
65 "Check for new mail in inbox folder.
66 Scan an MH folder if ARG is non-nil.
68 This function is an entry point to MH-E, the Emacs interface to
71 (mh-find-path) ; init mh-inbox
73 (call-interactively 'mh-visit-folder)
74 (mh-visit-folder mh-inbox)))
77 ;;; Desktop Integration
79 ;; desktop-buffer-mode-handlers appeared in Emacs 22.
80 (if (boundp 'desktop-buffer-mode-handlers)
81 (add-to-list 'desktop-buffer-mode-handlers
82 '(mh-folder-mode . mh-restore-desktop-buffer)))
84 (defun mh-restore-desktop-buffer (desktop-buffer-file-name
87 "Restore an MH folder buffer specified in a desktop file.
88 When desktop creates a buffer, DESKTOP-BUFFER-FILE-NAME holds the
89 file name to visit, DESKTOP-BUFFER-NAME holds the desired buffer
90 name, and DESKTOP-BUFFER-MISC holds a list of miscellaneous info
91 used by the `desktop-buffer-handlers' functions."
93 (mh-visit-folder desktop-buffer-name)
100 (defvar mh-folder-filename nil
101 "Full path of directory for this folder.")
103 (defvar mh-partial-folder-mode-line-annotation "select"
104 "Annotation when displaying part of a folder.
105 The string is displayed after the folder's name. nil for no
108 (defvar mh-last-destination nil
109 "Destination of last refile or write command.")
111 (defvar mh-last-destination-folder nil
112 "Destination of last refile command.")
114 (defvar mh-last-destination-write nil
115 "Destination of last write command.")
117 (defvar mh-first-msg-num nil
118 "Number of first message in buffer.")
120 (defvar mh-last-msg-num nil
121 "Number of last msg in buffer.")
123 (defvar mh-msg-count nil
124 "Number of msgs in buffer.")
131 mh-folder-sequence-menu mh-folder-mode-map "Menu for MH-E folder-sequence."
133 ["Add Message to Sequence..." mh-put-msg-in-seq (mh-get-msg-num nil)]
134 ["List Sequences for Message" mh-msg-is-in-seq (mh-get-msg-num nil)]
135 ["Delete Message from Sequence..." mh-delete-msg-from-seq
136 (mh-get-msg-num nil)]
137 ["List Sequences in Folder..." mh-list-sequences t]
138 ["Delete Sequence..." mh-delete-seq t]
139 ["Narrow to Sequence..." mh-narrow-to-seq t]
140 ["Widen from Sequence" mh-widen mh-folder-view-stack]
142 ["Narrow to Subject Sequence" mh-narrow-to-subject t]
143 ["Narrow to Tick Sequence" mh-narrow-to-tick
144 (and mh-tick-seq (mh-seq-msgs (mh-find-seq mh-tick-seq)))]
145 ["Delete Rest of Same Subject" mh-delete-subject t]
146 ["Toggle Tick Mark" mh-toggle-tick t]
148 ["Push State Out to MH" mh-update-sequences t]))
153 mh-folder-message-menu mh-folder-mode-map "Menu for MH-E folder-message."
155 ["Show Message" mh-show (mh-get-msg-num nil)]
156 ["Show Message with Header" mh-header-display (mh-get-msg-num nil)]
157 ["Show Message with Preferred Alternative"
158 mh-show-preferred-alternative (mh-get-msg-num nil)]
159 ["Next Message" mh-next-undeleted-msg t]
160 ["Previous Message" mh-previous-undeleted-msg t]
161 ["Go to First Message" mh-first-msg t]
162 ["Go to Last Message" mh-last-msg t]
163 ["Go to Message by Number..." mh-goto-msg t]
164 ["Modify Message" mh-modify t]
165 ["Refile Message" mh-refile-msg (mh-get-msg-num nil)]
166 ["Delete Message" mh-delete-msg (mh-get-msg-num nil)]
167 ["Undo Delete/Refile/Junk" mh-undo (mh-outstanding-commands-p)]
168 ["Execute Delete/Refile" mh-execute-commands
169 (mh-outstanding-commands-p)]
171 ["Compose a New Message" mh-send t]
172 ["Reply to Message..." mh-reply (mh-get-msg-num nil)]
173 ["Forward Message..." mh-forward (mh-get-msg-num nil)]
174 ["Redistribute Message..." mh-redistribute (mh-get-msg-num nil)]
175 ["Edit Message Again" mh-edit-again (mh-get-msg-num nil)]
176 ["Re-edit a Bounced Message" mh-extract-rejected-mail t]
178 ["Copy Message to Folder..." mh-copy-msg (mh-get-msg-num nil)]
179 ["Print Message" mh-print-msg (mh-get-msg-num nil)]
180 ["Write Message to File..." mh-write-msg-to-file
181 (mh-get-msg-num nil)]
182 ["Pipe Message to Command..." mh-pipe-msg (mh-get-msg-num nil)]
183 ["Unpack Uuencoded Message..." mh-store-msg (mh-get-msg-num nil)]
184 ["Burst Digest Message" mh-burst-digest (mh-get-msg-num nil)]))
189 mh-folder-folder-menu mh-folder-mode-map "Menu for MH-E folder."
191 ["Incorporate New Mail" mh-inc-folder t]
192 ["Toggle Show/Folder" mh-toggle-showing t]
193 ["Execute Delete/Refile" mh-execute-commands
194 (mh-outstanding-commands-p)]
195 ["Rescan Folder" mh-rescan-folder t]
196 ["Thread Folder" mh-toggle-threads
197 (not (memq 'unthread mh-view-ops))]
198 ["Pack Folder" mh-pack-folder t]
199 ["Sort Folder" mh-sort-folder t]
201 ["List Folders" mh-list-folders t]
202 ["Visit a Folder..." mh-visit-folder t]
203 ["View New Messages" mh-index-new-messages t]
204 ["Search..." mh-search t]
206 ["Quit MH-E" mh-quit t]))
212 (suppress-keymap mh-folder-mode-map)
214 ;; Use defalias to make sure the documented primary key bindings
215 ;; appear in menu lists.
216 (defalias 'mh-alt-show 'mh-show)
217 (defalias 'mh-alt-refile-msg 'mh-refile-msg)
218 (defalias 'mh-alt-send 'mh-send)
219 (defalias 'mh-alt-visit-folder 'mh-visit-folder)
221 ;; Save the "b" binding for a future `back'. Maybe?
222 (gnus-define-keys mh-folder-mode-map
224 "!" mh-refile-or-write-again
226 "," mh-header-display
228 ":" mh-show-preferred-alternative
229 ";" mh-toggle-mh-decode-mime-flag
230 ">" mh-write-msg-to-file
232 "E" mh-extract-rejected-mail
234 "\177" mh-previous-page
235 "\C-d" mh-delete-msg-no-motion
236 "\t" mh-index-next-folder
237 [backtab] mh-index-previous-folder
238 "\M-\t" mh-index-previous-folder
241 "\ed" mh-redistribute
243 "^" mh-alt-refile-msg
250 "k" mh-delete-subject-or-thread
252 "n" mh-next-undeleted-msg
253 "\M-n" mh-next-unread-msg
255 "p" mh-previous-undeleted-msg
256 "\M-p" mh-previous-unread-msg
260 "t" mh-toggle-showing
262 "v" mh-index-visit-folder
263 "x" mh-execute-commands
266 (gnus-define-keys (mh-folder-map "F" mh-folder-mode-map)
268 "'" mh-index-ticked-messages
271 "f" mh-alt-visit-folder
274 "n" mh-index-new-messages
275 "o" mh-alt-visit-folder
277 "q" mh-index-sequenced-messages
283 (define-key mh-folder-mode-map "I" mh-inc-spool-map)
285 (gnus-define-keys (mh-junk-map "J" mh-folder-mode-map)
287 "b" mh-junk-blacklist
288 "w" mh-junk-whitelist)
290 (gnus-define-keys (mh-ps-print-map "P" mh-folder-mode-map)
292 "C" mh-ps-print-toggle-color
293 "F" mh-ps-print-toggle-faces
294 "f" mh-ps-print-msg-file
298 (gnus-define-keys (mh-sequence-map "S" mh-folder-mode-map)
299 "'" mh-narrow-to-tick
301 "d" mh-delete-msg-from-seq
303 "l" mh-list-sequences
305 "p" mh-put-msg-in-seq
309 (gnus-define-keys (mh-thread-map "T" mh-folder-mode-map)
311 "u" mh-thread-ancestor
312 "p" mh-thread-previous-sibling
313 "n" mh-thread-next-sibling
314 "t" mh-toggle-threads
316 "o" mh-thread-refile)
318 (gnus-define-keys (mh-limit-map "/" mh-folder-mode-map)
319 "'" mh-narrow-to-tick
322 "g" mh-narrow-to-range
323 "m" mh-narrow-to-from
324 "s" mh-narrow-to-subject
328 (gnus-define-keys (mh-extract-map "X" mh-folder-mode-map)
330 "s" mh-store-msg ;shar
331 "u" mh-store-msg) ;uuencode
333 (gnus-define-keys (mh-digest-map "D" mh-folder-mode-map)
336 "\177" mh-page-digest-backwards
339 (gnus-define-keys (mh-mime-map "K" mh-folder-mode-map)
341 "a" mh-mime-save-parts
342 "e" mh-display-with-external-viewer
343 "i" mh-folder-inline-mime-part
344 "o" mh-folder-save-mime-part
345 "t" mh-toggle-mime-buttons
346 "v" mh-folder-toggle-mime-part
348 [backtab] mh-prev-button
349 "\M-\t" mh-prev-button)
353 (define-key mh-folder-mode-map [button2] 'mh-show-mouse))
355 (define-key mh-folder-mode-map [mouse-2] 'mh-show-mouse)))
357 ;; "C-c /" prefix is used in mh-folder-mode by pgp.el and mailcrypt
361 ;;; MH-Folder Help Messages
363 ;; If you add a new prefix, add appropriate text to the nil key.
365 ;; In general, messages are grouped logically. Taking the main commands for
366 ;; example, the first line is "ways to view messages," the second line is
367 ;; "things you can do with messages", and the third is "composing" messages.
369 ;; When adding a new prefix, ensure that the help message contains "what" the
370 ;; prefix is for. For example, if the word "folder" were not present in the
371 ;; "F" entry, it would not be clear what these commands operated upon.
372 (defvar mh-folder-mode-help-messages
373 '((nil "[i]nc, [.]show, [,]show all, [n]ext, [p]revious,\n"
374 "[d]elete, [o]refile, e[x]ecute,\n"
376 "[;]toggle MIME decoding.\n"
377 "Prefix characters:\n [F]older, [S]equence, [J]unk, MIME [K]eys,"
378 "\n [T]hread, [/]limit, e[X]tract, [D]igest, [I]nc spools.")
380 (?F "[l]ist; [v]isit folder;\n"
381 "[n]ew messages; [']ticked messages; [s]earch;\n"
382 "[p]ack; [S]ort; [r]escan; [k]ill")
383 (?P "[p]rint message to [f]ile; old-style [l]pr printing;\n"
384 "Toggle printing of [C]olors, [F]aces")
385 (?S "[p]ut message in sequence, [n]arrow, [']narrow to ticked, [w]iden,\n"
386 "[s]equences, [l]ist,\n"
387 "[d]elete message from sequence, [k]ill sequence")
388 (?T "[t]oggle, [d]elete, [o]refile thread")
389 (?/ "Limit to [c]c, ran[g]e, fro[m], [s]ubject, [t]o; [w]iden")
390 (?X "un[s]har, [u]udecode message")
391 (?D "[b]urst digest")
392 (?K "[v]iew, [i]nline, with [e]xternal viewer; \n"
393 "[o]utput/save MIME part; save [a]ll parts; \n"
394 "[t]oggle buttons; [TAB] next; [SHIFT-TAB] previous")
395 (?J "[b]lacklist, [w]hitelist message"))
396 "Key binding cheat sheet.
401 ;;; MH-Folder Font Lock
403 (defvar mh-folder-font-lock-keywords
405 ;; Folders when displaying index buffer
407 '(0 'mh-search-folder))
409 (list (concat mh-scan-refiled-msg-regexp ".*")
410 '(0 'mh-folder-refiled))
411 ;; Marked for deletion
412 (list (concat mh-scan-deleted-msg-regexp ".*")
413 '(0 'mh-folder-deleted))
414 ;; Marked for blacklisting
415 (list (concat mh-scan-blacklisted-msg-regexp ".*")
416 '(0 'mh-folder-blacklisted))
417 ;; Marked for whitelisting
418 (list (concat mh-scan-whitelisted-msg-regexp ".*")
419 '(0 'mh-folder-whitelisted))
421 (list mh-scan-body-regexp
422 '(1 'mh-folder-body nil t))
424 '(mh-folder-font-lock-subject
425 (1 'mh-folder-followup append t)
426 (2 'mh-folder-subject append t))
427 ;; Current message number
428 (list mh-scan-cur-msg-number-regexp
429 '(1 'mh-folder-cur-msg-number))
431 (list mh-scan-good-msg-regexp
432 '(1 'mh-folder-msg-number))
434 (list mh-scan-date-regexp
435 '(1 'mh-folder-date))
436 ;; Messages from me (To:)
437 (list mh-scan-rcpt-regexp
439 '(2 'mh-folder-address))
441 (list mh-scan-sent-to-me-sender-regexp
442 '(1 'mh-folder-sent-to-me-hint)
443 '(2 'mh-folder-sent-to-me-sender)))
444 "Keywords (regular expressions) used to fontify the MH-Folder buffer.")
446 (defun mh-folder-font-lock-subject (limit)
447 "Return MH-E scan subject strings to font-lock between point and LIMIT."
448 (if (not (re-search-forward mh-scan-subject-regexp limit t))
450 (if (match-beginning 1)
451 (set-match-data (list (match-beginning 1) (match-end 3)
452 (match-beginning 1) (match-end 3) nil nil))
453 (set-match-data (list (match-beginning 3) (match-end 3)
454 nil nil (match-beginning 3) (match-end 3))))
457 ;; Fontify unseen messages in bold.
459 (defmacro mh-generate-sequence-font-lock (seq prefix face)
460 "Generate the appropriate code to fontify messages in SEQ.
461 PREFIX is used to generate unique names for the variables and
462 functions defined by the macro. So a different prefix should be
463 provided for every invocation.
464 FACE is the font-lock face used to display the matching scan lines."
465 (let ((cache (intern (format "mh-folder-%s-seq-cache" prefix)))
466 (func (intern (format "mh-folder-font-lock-%s" prefix))))
469 "Internal cache variable used for font-lock in MH-E.
470 Should only be non-nil through font-lock stepping, and nil once
471 font-lock is done highlighting.")
472 (make-variable-buffer-local ',cache)
475 "Return unseen message lines to font-lock between point and LIMIT."
476 (if (not ,cache) (setq ,cache (mh-seq-msgs (mh-find-seq ,seq))))
477 (let ((cur-msg (mh-get-msg-num nil)))
480 ((>= (point) limit) ;Presumably at end of buffer
483 ((member cur-msg ,cache)
484 (let ((bpoint (progn (beginning-of-line)(point)))
485 (epoint (progn (forward-line 1)(point))))
486 (if (<= limit (point)) (setq ,cache nil))
487 (set-match-data (list bpoint epoint bpoint epoint))
490 ;; move forward one line at a time, checking each message
491 (while (and (= 0 (forward-line 1))
493 (not (member (mh-get-msg-num nil) ,cache))))
494 ;; Examine how we must have exited the loop...
495 (let ((cur-msg (mh-get-msg-num nil)))
496 (cond ((or (<= limit (point))
497 (not (member cur-msg ,cache)))
500 ((member cur-msg ,cache)
501 (let ((bpoint (progn (beginning-of-line) (point)))
502 (epoint (progn (forward-line 1) (point))))
503 (if (<= limit (point)) (setq ,cache nil))
505 (list bpoint epoint bpoint epoint))
508 (setq mh-folder-font-lock-keywords
509 (append mh-folder-font-lock-keywords
510 (list (list ',func (list 1 '',face 'prepend t))))))))
512 (mh-generate-sequence-font-lock mh-unseen-seq unseen bold)
513 (mh-generate-sequence-font-lock mh-tick-seq tick mh-folder-tick)
519 (defmacro mh-remove-xemacs-horizontal-scrollbar ()
520 "Get rid of the horizontal scrollbar that XEmacs insists on putting in."
521 (when (featurep 'xemacs)
522 `(if (and (featurep 'scrollbar)
523 (fboundp 'set-specifier))
524 (set-specifier horizontal-scrollbar-visible-p nil
525 (cons (current-buffer) nil)))))
527 ;; Register mh-folder-mode as supporting which-function-mode...
528 (mh-require 'which-func nil t)
529 (when (and (boundp 'which-func-modes) (listp which-func-modes))
530 (add-to-list 'which-func-modes 'mh-folder-mode))
533 (defvar desktop-save-buffer)
534 (defvar font-lock-auto-fontify)
536 (defvar font-lock-defaults))
538 ;; Ensure new buffers won't get this mode if default major-mode is nil.
539 (put 'mh-folder-mode 'mode-class 'special)
541 ;; Autoload cookie needed by desktop.el
543 (define-derived-mode mh-folder-mode fundamental-mode "MH-Folder"
544 "Major MH-E mode for \"editing\" an MH folder scan listing.\\<mh-folder-mode-map>
546 You can show the message the cursor is pointing to, and step through
547 the messages. Messages can be marked for deletion or refiling into
548 another folder; these commands are executed all at once with a
551 Options that control this mode can be changed with
552 \\[customize-group]; specify the \"mh\" group. In particular, please
553 see the `mh-scan-format-file' option if you wish to modify scan's
556 When a folder is visited, the hook `mh-folder-mode-hook' is run.
560 Many commands that operate on individual messages, such as
561 `mh-forward' or `mh-refile-msg' take a RANGE argument. This argument
562 can be used in several ways.
564 If you provide the prefix argument (\\[universal-argument]) to
565 these commands, then you will be prompted for the message range.
566 This can be any valid MH range which can include messages,
567 sequences, and the abbreviations (described in the mh(1) man
571 Indicates all messages in the range <num1> to <num2>, inclusive.
572 The range must be nonempty.
577 Up to N messages beginning with (or ending with) message num. Num
578 may be any of the predefined symbols: first, prev, cur, next or
585 The first, previous, next or last messages, if they exist.
590 For example, a range that shows all of these things is `1 2 3
593 If the option `transient-mark-mode' is set to t and you set a
594 region in the MH-Folder buffer, then the MH-E command will
595 perform the operation on all messages in that region.
597 \\{mh-folder-mode-map}"
599 (unless mh-folder-tool-bar-map
600 (mh-tool-bar-folder-buttons-init))
601 (if (boundp 'tool-bar-map)
602 (set (make-local-variable 'tool-bar-map) mh-folder-tool-bar-map)))
604 (mh-tool-bar-init :folder))
605 (make-local-variable 'font-lock-defaults)
606 (setq font-lock-defaults '(mh-folder-font-lock-keywords t))
607 (make-local-variable 'desktop-save-buffer)
608 (setq desktop-save-buffer t)
610 'mh-colors-available-flag (mh-colors-available-p)
611 ; Do we have colors available
612 'mh-current-folder (buffer-name) ; Name of folder, a string
613 'mh-show-buffer (format "show-%s" (buffer-name)) ; Buffer that displays msgs
614 'mh-folder-filename ; e.g. "/usr/foobar/Mail/inbox/"
615 (file-name-as-directory (mh-expand-file-name (buffer-name)))
616 'mh-display-buttons-for-inline-parts-flag
617 mh-display-buttons-for-inline-parts-flag ; Allow for display of buttons to
619 'mh-arrow-marker (make-marker) ; Marker where arrow is displayed
620 'overlay-arrow-position nil ; Allow for simultaneous display in
621 'overlay-arrow-string ">" ; different MH-E buffers.
622 'mh-showing-mode nil ; Show message also?
623 'mh-refile-list nil ; List of folder names in mh-seq-list
624 'mh-delete-list nil ; List of msgs nums to delete
625 'mh-blacklist nil ; List of messages to process as spam
626 'mh-whitelist nil ; List of messages to process as ham
627 'mh-seq-list nil ; Alist of (seq . msgs) nums
628 'mh-seen-list nil ; List of displayed messages
629 'mh-next-direction 'forward ; Direction to move to next message
630 'mh-view-ops () ; Stack that keeps track of the order
631 ; in which narrowing/threading has been
633 'mh-folder-view-stack () ; Stack of previous views of the
635 'mh-index-data nil ; If the folder was created by a call
636 ; to mh-search, this contains info
637 ; about the search results.
638 'mh-index-previous-search nil ; folder, indexer, search-regexp
639 'mh-index-msg-checksum-map nil ; msg -> checksum map
640 'mh-index-checksum-origin-map nil ; checksum -> ( orig-folder, orig-msg )
641 'mh-index-sequence-search-flag nil ; folder resulted from sequence search
642 'mh-first-msg-num nil ; Number of first msg in buffer
643 'mh-last-msg-num nil ; Number of last msg in buffer
644 'mh-msg-count nil ; Number of msgs in buffer
645 'mh-mode-line-annotation nil ; Indicates message range
646 'mh-sequence-notation-history (make-hash-table)
647 ; Remember what is overwritten by
649 'imenu-create-index-function 'mh-index-create-imenu-index
650 ; Setup imenu support
651 'mh-previous-window-config nil) ; Previous window configuration
652 (mh-remove-xemacs-horizontal-scrollbar)
653 (setq truncate-lines t)
655 (setq buffer-offer-save t)
656 (mh-make-local-hook (mh-write-file-functions))
657 (add-hook (mh-write-file-functions) 'mh-execute-commands nil t)
658 (make-local-variable 'revert-buffer-function)
659 (make-local-variable 'hl-line-mode) ; avoid pollution
660 (mh-funcall-if-exists hl-line-mode 1)
661 (setq revert-buffer-function 'mh-undo-folder)
662 (add-to-list 'minor-mode-alist '(mh-showing-mode " Show"))
663 (easy-menu-add mh-folder-sequence-menu)
664 (easy-menu-add mh-folder-message-menu)
665 (easy-menu-add mh-folder-folder-menu)
667 (mh-set-help mh-folder-mode-help-messages)
668 (if (and (featurep 'xemacs)
669 font-lock-auto-fontify)
670 (turn-on-font-lock))) ; Force font-lock in XEmacs.
674 ;;; MH-Folder Commands
677 ;; See also mh-comp.el, mh-junk.el, mh-mime.el, mh-print.el,
678 ;; mh-search.el, and mh-seq.el.
681 (defun mh-delete-msg (range)
682 "Delete RANGE\\<mh-folder-mode-map>.
684 To mark a message for deletion, use this command. A \"D\" is
685 placed by the message in the scan window, and the next undeleted
686 message is displayed. If the previous command had been
687 \\[mh-previous-undeleted-msg], then the next message displayed is
688 the first undeleted message previous to the message just deleted.
689 Use \\[mh-next-undeleted-msg] to force subsequent
690 \\[mh-delete-msg] commands to move forward to the next undeleted
691 message after deleting the message under the cursor.
693 The hook `mh-delete-msg-hook' is called after you mark a message
694 for deletion. For example, a past maintainer of MH-E used this
695 once when he kept statistics on his mail usage.
697 Check the documentation of `mh-interactive-range' to see how
698 RANGE is read in interactive use."
699 (interactive (list (mh-interactive-range "Delete")))
700 (mh-delete-msg-no-motion range)
701 (if (looking-at mh-scan-deleted-msg-regexp)
705 (defun mh-delete-msg-no-motion (range)
706 "Delete RANGE, don't move to next message.
708 This command marks the RANGE for deletion but leaves the cursor
709 at the current message in case you wish to perform other
710 operations on the message.
712 Check the documentation of `mh-interactive-range' to see how
713 RANGE is read in interactive use."
714 (interactive (list (mh-interactive-range "Delete")))
715 (mh-iterate-on-range () range
716 (mh-delete-a-msg nil)))
719 (defun mh-execute-commands ()
720 "Perform outstanding operations\\<mh-folder-mode-map>.
722 If you've marked messages to be refiled, deleted, blacklisted, or
723 whitelisted and you want to go ahead and perform these operations
724 on these messages, use this command. Many MH-E commands that may
725 affect the numbering of the messages (such as
726 \\[mh-rescan-folder] or \\[mh-pack-folder]) will ask if you want
727 to perform these operations first and then either run this
728 command for you or undo the pending operations.
730 This function runs `mh-before-commands-processed-hook' before the
731 commands are processed and `mh-after-commands-processed-hook'
732 after the commands are processed."
734 (if mh-folder-view-stack (mh-widen t))
735 (mh-process-commands mh-current-folder)
737 (mh-goto-cur-msg) ; after mh-set-scan-mode for efficiency
738 (mh-make-folder-mode-line)
739 t) ; return t for write-file-functions
742 (defun mh-first-msg ()
743 "Display first message."
745 (goto-char (point-min))
746 (while (and (not (eobp)) (not (looking-at mh-scan-valid-regexp)))
750 (defun mh-goto-msg (number &optional no-error-if-no-message dont-show)
751 "Go to a message\\<mh-folder-mode-map>.
753 You can enter the message NUMBER either before or after typing
754 \\[mh-goto-msg]. In the latter case, Emacs prompts you.
756 In a program, optional non-nil second argument NO-ERROR-IF-NO-MESSAGE
757 means return nil instead of signaling an error if message does not
758 exist\; in this case, the cursor is positioned near where the message
759 would have been. Non-nil third argument DONT-SHOW means not to show
761 (interactive "NGo to message: ")
762 (setq number (prefix-numeric-value number))
763 (let ((point (point))
765 (goto-char (point-min))
766 (unless (re-search-forward (format (mh-scan-msg-search-regexp) number)
769 (unless no-error-if-no-message
770 (error "No message %d" number))
771 (setq return-value nil))
773 (or dont-show (not return-value) (mh-maybe-show number))
777 (defun mh-inc-folder (&optional file folder)
778 "Incorporate new mail into a folder.
780 You can incorporate mail from any file into the current folder by
781 specifying a prefix argument; you'll be prompted for the name of
782 the FILE to use as well as the destination FOLDER
784 The hook `mh-inc-folder-hook' is run after incorporating new
787 Do not call this function from outside MH-E; use \\[mh-rmail]
789 (interactive (list (if current-prefix-arg
791 (read-file-name "inc mail from file: "
793 (if current-prefix-arg
794 (mh-prompt-for-folder "inc mail into" mh-inbox t))))
796 (setq folder mh-inbox))
797 (let ((threading-needed-flag nil))
798 (let ((config (current-window-configuration)))
799 (when (and mh-show-buffer (get-buffer mh-show-buffer))
800 (delete-windows-on mh-show-buffer))
801 (cond ((not (get-buffer folder))
802 (mh-make-folder folder)
803 (setq threading-needed-flag mh-show-threads-flag)
804 (setq mh-previous-window-config config))
805 ((not (eq (current-buffer) (get-buffer folder)))
806 (switch-to-buffer folder)
807 (setq mh-previous-window-config config))))
808 (mh-get-new-mail file)
809 (when (and threading-needed-flag
811 (goto-char (point-min))
812 (or (null mh-large-folder)
813 (not (equal (forward-line (1+ mh-large-folder)) 0))
814 (and (message "Not threading since the number of messages exceeds `mh-large-folder'")
818 (when (mh-outstanding-commands-p)
819 (mh-notate-deleted-and-refiled))
820 (if (and mh-showing-mode (looking-at mh-scan-valid-regexp)) (mh-show))
821 (run-hooks 'mh-inc-folder-hook)))
824 (defun mh-last-msg ()
825 "Display last message."
827 (goto-char (point-max))
828 (while (and (not (bobp)) (not (looking-at mh-scan-valid-regexp)))
833 (defun mh-modify (&optional message)
836 There are times when you need to edit a message. For example, you
837 may need to fix a broken Content-Type header field. You can do
838 this with this command. It displays the raw message in an
839 editable buffer. When you are done editing, save and kill the
840 buffer as you would any other.
842 From a program, edit MESSAGE; nil means edit current message."
844 (let* ((message (or message (mh-get-msg-num t)))
845 (msg-filename (mh-msg-filename message))
847 (when (not (file-exists-p msg-filename))
848 (error "Message %d does not exist" message))
850 ;; Invalidate the show buffer if it is showing the same message that is
852 (when (and (buffer-live-p (get-buffer mh-show-buffer))
853 (equal (with-current-buffer mh-show-buffer
856 (mh-invalidate-show-buffer))
859 (find-file msg-filename)
860 (setq edit-buffer (current-buffer))
862 ;; Set buffer properties
864 (use-local-map text-mode-map)
866 ;; Just show the edit buffer...
867 (delete-other-windows)
868 (switch-to-buffer edit-buffer)))
871 (defun mh-next-button (&optional backward-flag)
872 "Go to the next button.
874 If the end of the buffer is reached then the search wraps over to
875 the start of the buffer.
877 If an optional prefix argument BACKWARD-FLAG is given, the cursor
878 will move to the previous button."
879 (interactive (list current-prefix-arg))
880 (unless mh-showing-mode
882 (mh-in-show-buffer (mh-show-buffer)
883 (mh-goto-next-button backward-flag)))
886 (defun mh-next-undeleted-msg (&optional count wait-after-complaining-flag)
887 "Display next message.
889 This command can be given a prefix argument COUNT to specify how
890 many unread messages to skip.
892 In a program, pause for a second after printing message if we are
893 at the last undeleted message and optional argument
894 WAIT-AFTER-COMPLAINING-FLAG is non-nil."
896 (setq mh-next-direction 'forward)
898 (cond ((re-search-forward mh-scan-good-msg-regexp nil t count)
902 (message "No more undeleted messages")
903 (if wait-after-complaining-flag (sit-for 1)))))
906 (defun mh-next-unread-msg (&optional count)
907 "Display next unread message.
909 This command can be given a prefix argument COUNT to specify how
910 many unread messages to skip."
913 (error "The function `mh-next-unread-msg' expects positive argument"))
914 (setq count (1- count))
915 (let ((unread-sequence (reverse (cdr (assoc mh-unseen-seq mh-seq-list))))
916 (cur-msg (mh-get-msg-num nil)))
917 (cond ((and (not cur-msg) (not (bobp))
918 ;; If we are at the end of the buffer back up one line and go
919 ;; to unread message after that.
922 (setq cur-msg (mh-get-msg-num nil)))
924 ((or (null unread-sequence) (not cur-msg))
925 ;; No unread message or there aren't any messages in buffer...
926 (message "No more unread messages"))
929 (while (and unread-sequence (>= cur-msg (car unread-sequence)))
930 (setq unread-sequence (cdr unread-sequence)))
932 (setq unread-sequence (cdr unread-sequence))
933 (setq count (1- count)))
934 (not (car unread-sequence)))
935 (message "No more unread messages"))
936 (t (loop for msg in unread-sequence
937 when (mh-goto-msg msg t) return nil
938 finally (message "No more unread messages"))))))
941 (defun mh-page-msg (&optional lines)
942 "Display next page in message.
944 You can give this command a prefix argument that specifies the
945 number of LINES to scroll. This command will also show the next
946 undeleted message if it is used at the bottom of a message."
949 (if mh-page-to-next-msg-flag
950 (if (equal mh-next-direction 'backward)
951 (mh-previous-undeleted-msg)
952 (mh-next-undeleted-msg))
953 (if (mh-in-show-buffer (mh-show-buffer)
954 (pos-visible-in-window-p (point-max)))
957 "End of message (Type %s to read %s undeleted message)"
958 (single-key-description last-input-event)
959 (if (equal mh-next-direction 'backward)
962 (setq mh-page-to-next-msg-flag t))
963 (scroll-other-window lines)))
967 (defun mh-prev-button ()
968 "Go to the previous button.
970 If the beginning of the buffer is reached then the search wraps
971 over to the end of the buffer."
976 (defun mh-previous-page (&optional lines)
977 "Display next page in message.
979 You can give this command a prefix argument that specifies the
980 number of LINES to scroll."
982 (mh-in-show-buffer (mh-show-buffer)
983 (scroll-down lines)))
986 (defun mh-previous-undeleted-msg (&optional count wait-after-complaining-flag)
987 "Display previous message.
989 This command can be given a prefix argument COUNT to specify how
990 many unread messages to skip.
992 In a program, pause for a second after printing message if we are
993 at the last undeleted message and optional argument
994 WAIT-AFTER-COMPLAINING-FLAG is non-nil."
996 (setq mh-next-direction 'backward)
998 (cond ((re-search-backward mh-scan-good-msg-regexp nil t count)
1000 (t (message "No previous undeleted message")
1001 (if wait-after-complaining-flag (sit-for 1)))))
1004 (defun mh-previous-unread-msg (&optional count)
1005 "Display previous unread message.
1007 This command can be given a prefix argument COUNT to specify how
1008 many unread messages to skip."
1011 (error "The function `mh-previous-unread-msg' expects positive argument"))
1012 (setq count (1- count))
1013 (let ((unread-sequence (cdr (assoc mh-unseen-seq mh-seq-list)))
1014 (cur-msg (mh-get-msg-num nil)))
1015 (cond ((and (not cur-msg) (not (bobp))
1016 ;; If we are at the end of the buffer back up one line and go
1017 ;; to unread message after that.
1020 (setq cur-msg (mh-get-msg-num nil)))
1022 ((or (null unread-sequence) (not cur-msg))
1023 ;; No unread message or there aren't any messages in buffer...
1024 (message "No more unread messages"))
1026 ;; Skip count messages...
1027 (while (and unread-sequence (>= (car unread-sequence) cur-msg))
1028 (setq unread-sequence (cdr unread-sequence)))
1030 (setq unread-sequence (cdr unread-sequence))
1031 (setq count (1- count)))
1032 (not (car unread-sequence)))
1033 (message "No more unread messages"))
1034 (t (loop for msg in unread-sequence
1035 when (mh-goto-msg msg t) return nil
1036 finally (message "No more unread messages"))))))
1040 "Quit the current MH-E folder.
1042 When you want to quit using MH-E and go back to editing, you can use
1043 this command. This buries the buffers of the current MH-E folder and
1044 restores the buffers that were present when you first ran
1045 \\[mh-rmail]. It also removes any MH-E working buffers whose name
1046 begins with \" *mh-\" or \"*MH-E \". You can later restore your MH-E
1047 session by selecting the \"+inbox\" buffer or by running \\[mh-rmail]
1050 The two hooks `mh-before-quit-hook' and `mh-quit-hook' are called by
1051 this function. The former one is called before the quit occurs, so you
1052 might use it to perform any MH-E operations; you could perform some
1053 query and abort the quit or call `mh-execute-commands', for example.
1054 The latter is not run in an MH-E context, so you might use it to
1055 modify the window setup."
1057 (run-hooks 'mh-before-quit-hook)
1058 (let ((show-buffer (get-buffer mh-show-buffer)))
1060 (kill-buffer show-buffer)))
1061 (mh-update-sequences)
1062 (mh-destroy-postponed-handles)
1063 (bury-buffer (current-buffer))
1065 ;; Delete all MH-E temporary and working buffers.
1066 (dolist (buffer (buffer-list))
1067 (when (or (string-match "^ \\*mh-" (buffer-name buffer))
1068 (string-match "^\\*MH-E " (buffer-name buffer)))
1069 (kill-buffer buffer)))
1071 (if mh-previous-window-config
1072 (set-window-configuration mh-previous-window-config))
1073 (run-hooks 'mh-quit-hook))
1076 (defun mh-refile-msg (range folder &optional dont-update-last-destination-flag)
1077 "Refile (output) RANGE into FOLDER.
1079 You are prompted for the folder name. Note that this command can also
1080 be used to create folders. If you specify a folder that does not
1081 exist, you will be prompted to create it.
1083 The hook `mh-refile-msg-hook' is called after a message is marked to
1086 Check the documentation of `mh-interactive-range' to see how RANGE is
1087 read in interactive use.
1089 In a program, the variables `mh-last-destination' and
1090 `mh-last-destination-folder' are not updated if
1091 DONT-UPDATE-LAST-DESTINATION-FLAG is non-nil."
1092 (interactive (list (mh-interactive-range "Refile")
1093 (intern (mh-prompt-for-refile-folder))))
1094 (unless dont-update-last-destination-flag
1095 (setq mh-last-destination (cons 'refile folder)
1096 mh-last-destination-folder mh-last-destination))
1097 (mh-iterate-on-range () range
1098 (mh-refile-a-msg nil folder))
1099 (when (looking-at mh-scan-refiled-msg-regexp) (mh-next-msg)))
1102 (defun mh-refile-or-write-again (range &optional interactive-flag)
1103 "Repeat last output command.
1105 If you are refiling several messages into the same folder, you
1106 can use this command to repeat the last
1107 refile (\\[mh-refile-msg]) or write (\\[mh-write-msg-to-file]).
1108 You can use a range.
1110 Check the documentation of `mh-interactive-range' to see how RANGE is
1111 read in interactive use.
1113 In a program, a non-nil INTERACTIVE-FLAG means that the function was
1114 called interactively."
1115 (interactive (list (mh-interactive-range "Redo") t))
1116 (if (null mh-last-destination)
1117 (error "No previous refile or write"))
1118 (cond ((eq (car mh-last-destination) 'refile)
1119 (mh-refile-msg range (cdr mh-last-destination))
1120 (message "Destination folder: %s" (cdr mh-last-destination)))
1122 (mh-iterate-on-range msg range
1123 (apply 'mh-write-msg-to-file msg (cdr mh-last-destination)))
1124 (mh-next-msg interactive-flag))))
1127 (defun mh-rescan-folder (&optional range dont-exec-pending)
1128 "Rescan folder\\<mh-folder-mode-map>.
1130 This command is useful to grab all messages in your \"+inbox\" after
1131 processing your new mail for the first time. If you don't want to
1132 rescan the entire folder, this command will accept a RANGE. Check the
1133 documentation of `mh-interactive-range' to see how RANGE is read in
1136 This command will ask if you want to process refiles or deletes first
1137 and then either run \\[mh-execute-commands] for you or undo the
1138 pending refiles and deletes.
1140 In a program, the processing of outstanding commands is not performed
1141 if DONT-EXEC-PENDING is non-nil."
1142 (interactive (list (if current-prefix-arg
1143 (mh-read-range "Rescan" mh-current-folder t nil t
1144 mh-interpret-number-as-range-flag)
1146 (setq mh-next-direction 'forward)
1147 (let ((threaded-flag (memq 'unthread mh-view-ops))
1148 (msg-num (mh-get-msg-num nil)))
1149 (mh-scan-folder mh-current-folder (or range "all") dont-exec-pending)
1150 ;; If there isn't a cur sequence, mh-scan-folder goes to the first message.
1151 ;; Try to stay where we were.
1152 (if (null (car (mh-seq-to-msgs 'cur)))
1153 (mh-goto-msg msg-num t t))
1154 (cond (threaded-flag (mh-toggle-threads))
1155 (mh-index-data (mh-index-insert-folder-headers)))))
1157 (defun mh-show-mouse (event)
1158 "Move point to mouse EVENT and show message."
1160 (mouse-set-point event)
1164 (defun mh-toggle-showing ()
1165 "Toggle between MH-Folder and MH-Folder Show modes.
1167 This command switches between MH-Folder mode and MH-Folder Show
1168 mode. MH-Folder mode turns off the associated show buffer so that
1169 you can perform operations on the messages quickly without
1170 reading them. This is an excellent way to prune out your junk
1171 mail or to refile a group of messages to another folder for later
1179 (defun mh-undo (range)
1180 "Undo pending deletes or refiles in RANGE.
1182 If you've deleted a message or refiled it, but changed your mind,
1183 you can cancel the action before you've executed it. Use this
1184 command to undo a refile on or deletion of a single message. You
1185 can also undo refiles and deletes for messages that are found in
1188 Check the documentation of `mh-interactive-range' to see how
1189 RANGE is read in interactive use."
1190 (interactive (list (mh-interactive-range "Undo")))
1191 (cond ((numberp range)
1192 (let ((original-position (point)))
1194 (while (not (or (looking-at mh-scan-refiled-msg-regexp)
1195 (looking-at mh-scan-deleted-msg-regexp)
1196 (looking-at mh-scan-blacklisted-msg-regexp)
1197 (looking-at mh-scan-whitelisted-msg-regexp)
1198 (and (eq mh-next-direction 'forward) (bobp))
1199 (and (eq mh-next-direction 'backward)
1200 (save-excursion (forward-line) (eobp)))))
1201 (forward-line (if (eq mh-next-direction 'forward) -1 1)))
1202 (if (or (looking-at mh-scan-refiled-msg-regexp)
1203 (looking-at mh-scan-deleted-msg-regexp)
1204 (looking-at mh-scan-blacklisted-msg-regexp)
1205 (looking-at mh-scan-whitelisted-msg-regexp))
1207 (mh-undo-msg (mh-get-msg-num t))
1209 (goto-char original-position)
1210 (error "Nothing to undo"))))
1211 (t (mh-iterate-on-range () range
1212 (mh-undo-msg nil))))
1213 (if (not (mh-outstanding-commands-p))
1214 (mh-set-folder-modified-p nil)))
1217 (defun mh-visit-folder (folder &optional range index-data)
1220 When you want to read the messages that you have refiled into folders,
1221 use this command to visit the folder. You are prompted for the folder
1224 The folder buffer will show just unseen messages if there are any;
1225 otherwise, it will show all the messages in the buffer as long there
1226 are fewer than `mh-large-folder' messages. If there are more, then you
1227 are prompted for a range of messages to scan.
1229 You can provide a prefix argument in order to specify a RANGE of
1230 messages to show when you visit the folder. In this case, regions are
1231 not used to specify the range and `mh-large-folder' is ignored. Check
1232 the documentation of `mh-interactive-range' to see how RANGE is read
1235 Note that this command can also be used to create folders. If you
1236 specify a folder that does not exist, you will be prompted to create
1239 Do not call this function from outside MH-E; use \\[mh-rmail] instead.
1241 If, in a program, RANGE is nil (the default), then all messages in
1242 FOLDER are displayed. If an index buffer is being created then
1243 INDEX-DATA is used to initialize the index buffer specific data
1245 (interactive (let ((folder-name (mh-prompt-for-folder "Visit" mh-inbox t)))
1247 (mh-read-range "Scan" folder-name t nil
1249 mh-interpret-number-as-range-flag))))
1250 (let ((config (current-window-configuration))
1251 (current-buffer (current-buffer))
1252 (threaded-view-flag mh-show-threads-flag))
1253 (delete-other-windows)
1254 (when (get-buffer folder)
1255 (with-current-buffer folder
1256 (setq threaded-view-flag (memq 'unthread mh-view-ops))))
1258 (mh-make-folder folder)
1259 (setq mh-index-data (car index-data)
1260 mh-index-msg-checksum-map (make-hash-table :test #'equal)
1261 mh-index-checksum-origin-map (make-hash-table :test #'equal))
1262 (mh-index-update-maps folder (cadr index-data))
1263 (mh-index-create-sequences))
1264 (mh-scan-folder folder (or range "all"))
1265 (cond ((and threaded-view-flag
1267 (goto-char (point-min))
1268 (or (null mh-large-folder)
1269 (not (equal (forward-line (1+ mh-large-folder)) 0))
1270 (and (message "Not threading since the number of messages exceeds `mh-large-folder'")
1272 (mh-toggle-threads))
1274 (mh-index-insert-folder-headers)))
1275 (unless (eq current-buffer (current-buffer))
1276 (setq mh-previous-window-config config)))
1280 (defun mh-write-msg-to-file (message file no-header)
1281 "Append MESSAGE to end of FILE\\<mh-folder-mode-map>.
1283 You are prompted for the filename. If the file already exists,
1284 the message is appended to it. You can also write the message to
1285 the file without the header by specifying a prefix argument
1286 NO-HEADER. Subsequent writes to the same file can be made with
1287 the command \\[mh-refile-or-write-again]."
1289 (list (mh-get-msg-num t)
1290 (let ((default-dir (if (eq 'write (car mh-last-destination-write))
1291 (file-name-directory
1292 (car (cdr mh-last-destination-write)))
1293 default-directory)))
1294 (read-file-name (format "Save message%s in file: "
1295 (if current-prefix-arg " body" ""))
1297 (if (eq 'write (car mh-last-destination-write))
1298 (car (cdr mh-last-destination-write))
1299 (expand-file-name "mail.out" default-dir))))
1300 current-prefix-arg))
1301 (let ((msg-file-to-output (mh-msg-filename message))
1302 (output-file (mh-expand-file-name file)))
1303 (setq mh-last-destination (list 'write file (if no-header 'no-header))
1304 mh-last-destination-write mh-last-destination)
1305 (with-current-buffer (get-buffer-create mh-temp-buffer)
1307 (insert-file-contents msg-file-to-output)
1308 (goto-char (point-min))
1309 (if no-header (search-forward "\n\n"))
1310 (append-to-file (point) (point-max) output-file))))
1313 (defun mh-update-sequences ()
1314 "Flush MH-E's state out to MH.
1316 This function updates the sequence specified by your
1317 \"Unseen-Sequence:\" profile component, \"cur\", and the sequence
1318 listed by the `mh-tick-seq' option which is \"tick\" by default.
1319 The message at the cursor is used for \"cur\"."
1321 ;; mh-update-sequences is the opposite of mh-read-folder-sequences,
1322 ;; which updates MH-E's state from MH.
1323 (let ((folder-set (mh-update-unseen))
1324 (new-cur (mh-get-msg-num nil)))
1326 (let ((seq-entry (mh-find-seq 'cur)))
1327 (mh-remove-cur-notation)
1329 (list new-cur)) ;delete-seq-locally, add-msgs-to-seq
1330 (mh-define-sequence 'cur (list new-cur))
1332 (if (looking-at mh-scan-good-msg-regexp)
1336 ;; psg - mh-current-folder is nil if mh-summary-height < 4 !
1337 ;; So I added this sanity check.
1338 (if (stringp mh-current-folder)
1339 (mh-exec-cmd-quiet t "folder" mh-current-folder "-fast")
1340 (mh-exec-cmd-quiet t "folder" "-fast")))))))
1344 ;;; Support Routines
1346 (defun mh-get-new-mail (maildrop-name)
1347 "Read new mail from MAILDROP-NAME into the current buffer.
1348 Return in the current buffer."
1349 (let ((point-before-inc (point))
1350 (folder mh-current-folder)
1351 (new-mail-flag nil))
1352 (with-mh-folder-updating (t)
1354 (message "inc %s -file %s..." folder maildrop-name)
1355 (message "inc %s..." folder))
1356 (setq mh-next-direction 'forward)
1357 (goto-char (point-max))
1358 (mh-remove-cur-notation)
1359 (let ((start-of-inc (point)))
1361 ;; I think MH 5 used "-ms-file" instead of "-file",
1362 ;; which would make inc'ing from maildrops fail.
1363 (mh-exec-cmd-output mh-inc-prog nil folder
1365 "-file" (expand-file-name maildrop-name)
1366 "-width" (window-width)
1368 (mh-exec-cmd-output mh-inc-prog nil
1370 "-width" (window-width)))
1372 (message "inc %s -file %s...done" folder maildrop-name)
1373 (message "inc %s...done" folder))
1374 (goto-char start-of-inc)
1375 (cond ((save-excursion
1376 (re-search-forward "^inc: no mail" nil t))
1377 (message "No new mail%s%s" (if maildrop-name " in " "")
1378 (if maildrop-name maildrop-name "")))
1379 ((and (when mh-folder-view-stack
1380 (let ((saved-text (buffer-substring-no-properties
1381 start-of-inc (point-max))))
1382 (delete-region start-of-inc (point-max))
1383 (unwind-protect (mh-widen t)
1384 (mh-remove-cur-notation)
1385 (goto-char (point-max))
1386 (setq start-of-inc (point))
1388 (goto-char start-of-inc))))
1390 ((re-search-forward "^inc:" nil t) ; Error messages
1391 (error "Error incorporating mail"))
1393 (equal mh-scan-format-file t)
1394 mh-adaptive-cmd-note-flag
1395 ;; Have we reached an edge condition?
1397 (re-search-forward mh-scan-msg-overflow-regexp nil 0 1))
1398 (setq start-of-inc (mh-generate-new-cmd-note folder))
1401 (setq new-mail-flag t)))
1402 (keep-lines mh-scan-valid-regexp) ; Flush random scan lines
1403 (let* ((sequences (mh-read-folder-sequences folder t))
1404 (new-cur (assoc 'cur sequences))
1405 (new-unseen (assoc mh-unseen-seq sequences)))
1406 (unless (assoc 'cur mh-seq-list)
1407 (push (list 'cur) mh-seq-list))
1408 (unless (assoc mh-unseen-seq mh-seq-list)
1409 (push (list mh-unseen-seq) mh-seq-list))
1410 (setcdr (assoc 'cur mh-seq-list) (cdr new-cur))
1411 (setcdr (assoc mh-unseen-seq mh-seq-list) (cdr new-unseen)))
1412 (when (equal (point-max) start-of-inc)
1416 (mh-make-folder-mode-line)
1417 (when (mh-speed-flists-active-p)
1418 (mh-speed-flists t mh-current-folder))
1419 (when (memq 'unthread mh-view-ops)
1420 (mh-thread-inc folder start-of-inc))
1422 (goto-char point-before-inc))
1423 (mh-notate-user-sequences (cons start-of-inc (point-max)))))))
1425 (defun mh-generate-new-cmd-note (folder)
1426 "Fix the `mh-cmd-note' value for this FOLDER.
1428 After doing an `mh-get-new-mail' operation in this FOLDER, at least
1429 one line that looks like a truncated message number was found.
1431 Remove the text added by the last `mh-inc' command. It should be the
1432 messages cur-last. Call `mh-set-cmd-note', adjusting the notation
1433 column with the width of the largest message number in FOLDER.
1435 Reformat the message number width on each line in the buffer and trim
1436 the line length to fit in the window.
1438 Rescan the FOLDER in the range cur-last in order to display the
1439 messages that were removed earlier. They should all fit in the scan
1440 line now with no message truncation."
1442 (let ((maxcol (1- (window-width)))
1443 (old-cmd-note mh-cmd-note)
1446 ;; Nuke all of the lines just added by the last inc
1447 (delete-char (- (point-max) (point)))
1448 ;; Update the current buffer to reflect the new mh-cmd-note
1449 ;; value needed to display messages.
1450 (mh-set-cmd-note (mh-msg-num-width-to-column (mh-msg-num-width folder)))
1451 (setq mh-cmd-note-fmt (concat "%" (format "%d" mh-cmd-note) "d"))
1452 ;; Cleanup the messages that are in the buffer right now
1453 (goto-char (point-min))
1454 (cond ((memq 'unthread mh-view-ops)
1455 (mh-thread-add-spaces (- mh-cmd-note old-cmd-note)))
1456 (t (while (re-search-forward (mh-scan-msg-number-regexp) nil 0 1)
1457 ;; reformat the number to fix in mh-cmd-note columns
1458 (setq msgnum (string-to-number
1460 (match-beginning 1) (match-end 1))))
1461 (replace-match (format mh-cmd-note-fmt msgnum))
1462 ;; trim the line to fix in the window
1464 (let ((eol (point)))
1465 (move-to-column maxcol)
1466 (if (<= (point) eol)
1467 (delete-char (- eol (point))))))))
1468 ;; now re-read the lost messages
1469 (goto-char (point-max))
1471 (mh-regenerate-headers "cur-last" t)))))
1474 (defun mh-goto-cur-msg (&optional minimal-changes-flag)
1475 "Position the cursor at the current message.
1476 When optional argument MINIMAL-CHANGES-FLAG is non-nil, the
1477 function doesn't recenter the folder buffer."
1478 (let ((cur-msg (car (mh-seq-to-msgs 'cur))))
1480 (mh-goto-msg cur-msg t t))
1481 (unless minimal-changes-flag
1484 (mh-maybe-show cur-msg)))
1486 (setq overlay-arrow-position nil)
1487 (message "No current message")))))
1490 (defun mh-recenter (arg)
1491 "Like recenter but with three improvements:
1493 - At the end of the buffer it tries to show fewer empty lines.
1495 - operates only if the current buffer is in the selected window.
1496 (Commands like `save-some-buffers' can make this false.)
1498 - nil ARG means recenter as if prefix argument had been given."
1499 (cond ((not (eq (get-buffer-window (current-buffer)) (selected-window)))
1501 ((= (point-max) (save-excursion
1502 (forward-line (- (/ (window-height) 2) 2))
1504 (let ((lines-from-end 2))
1506 (while (> (point-max) (progn (forward-line) (point)))
1507 (incf lines-from-end)))
1508 (recenter (- lines-from-end))))
1509 ;; '(4) is the same as C-u prefix argument.
1510 (t (recenter (or arg '(4))))))
1512 (defun mh-update-unseen ()
1513 "Synchronize the unseen sequence with MH.
1514 Return non-nil if the MH folder was set.
1515 The hook `mh-unseen-updated-hook' is called after the unseen sequence
1518 (let* ((unseen-seq (mh-find-seq mh-unseen-seq))
1519 (unseen-msgs (mh-seq-msgs unseen-seq)))
1522 (mh-undefine-sequence mh-unseen-seq mh-seen-list)
1523 (run-hooks 'mh-unseen-updated-hook)
1525 (setq unseen-msgs (delq (car mh-seen-list) unseen-msgs))
1526 (setq mh-seen-list (cdr mh-seen-list)))
1527 (setcdr unseen-seq unseen-msgs)
1528 t) ;since we set the folder
1529 (setq mh-seen-list nil)))))
1532 (defun mh-outstanding-commands-p ()
1533 "Return non-nil if there are outstanding deletes or refiles."
1535 (when (eq major-mode 'mh-show-mode)
1536 (set-buffer mh-show-folder-buffer))
1537 (or mh-delete-list mh-refile-list mh-blacklist mh-whitelist)))
1540 (defun mh-set-folder-modified-p (flag)
1541 "Mark current folder as modified or unmodified according to FLAG."
1542 (set-buffer-modified-p flag))
1544 (defun mh-process-commands (folder)
1545 "Process outstanding commands for FOLDER.
1547 This function runs `mh-before-commands-processed-hook' before the
1548 commands are processed and `mh-after-commands-processed-hook'
1549 after the commands are processed."
1550 (message "Processing deletes and refiles for %s..." folder)
1552 (with-mh-folder-updating (nil)
1553 ;; Run the before hook -- the refile and delete lists are still valid
1554 (run-hooks 'mh-before-commands-processed-hook)
1556 ;; Update the unseen sequence if it exists
1559 (let ((redraw-needed-flag mh-index-data)
1560 (folders-changed (list mh-current-folder))
1562 (or (and mh-refile-list mh-refile-preserves-sequences-flag)
1564 mh-whitelist-preserves-sequences-flag))
1565 (mh-create-sequence-map mh-seq-list)))
1566 (dest-map (and mh-refile-list mh-refile-preserves-sequences-flag
1568 (white-map (and mh-whitelist mh-whitelist-preserves-sequences-flag
1569 (make-hash-table))))
1570 ;; Remove invalid scan lines if we are in an index folder and then remove
1571 ;; the real messages
1573 (mh-index-delete-folder-headers)
1574 (setq folders-changed
1575 (append folders-changed (mh-index-execute-commands))))
1577 ;; Then refile messages
1578 (mh-mapc #'(lambda (folder-msg-list)
1579 (let* ((dest-folder (symbol-name (car folder-msg-list)))
1580 (last (car (mh-translate-range dest-folder "last")))
1581 (msgs (cdr folder-msg-list)))
1582 (push dest-folder folders-changed)
1583 (setq redraw-needed-flag t)
1584 (apply #'mh-exec-cmd
1585 "refile" "-src" folder dest-folder
1586 (mh-coalesce-msg-list msgs))
1587 (mh-delete-scan-msgs msgs)
1588 ;; Preserve sequences in destination folder...
1589 (when mh-refile-preserves-sequences-flag
1591 (loop for i from (1+ (or last 0))
1592 for msg in (sort (copy-sequence msgs) #'<)
1593 do (loop for seq-name in (gethash msg seq-map)
1594 do (push i (gethash seq-name dest-map))))
1596 #'(lambda (seq msgs)
1597 ;; Can't be run in the background, since the
1598 ;; current folder is changed by mark this could
1599 ;; lead to a race condition with the next refile.
1600 (apply #'mh-exec-cmd "mark"
1601 "-sequence" (symbol-name seq) dest-folder
1602 "-add" (mapcar #'(lambda (x) (format "%s" x))
1603 (mh-coalesce-msg-list msgs))))
1606 (setq mh-refile-list ())
1608 ;; Now delete messages
1609 (cond (mh-delete-list
1610 (setq redraw-needed-flag t)
1611 (apply 'mh-exec-cmd "rmm" folder
1612 (mh-coalesce-msg-list mh-delete-list))
1613 (mh-delete-scan-msgs mh-delete-list)
1614 (setq mh-delete-list nil)))
1616 ;; Blacklist messages.
1618 (let ((msg-list (mh-coalesce-msg-list mh-blacklist))
1619 (dest (mh-junk-blacklist-disposition)))
1620 (mh-junk-process-blacklist mh-blacklist)
1621 ;; TODO I wonder why mh-exec-cmd is used instead of the following:
1622 ;; (mh-refile-a-msg nil (intern dest))
1623 ;; (mh-delete-a-msg nil)))
1625 (apply 'mh-exec-cmd "rmm" folder msg-list)
1626 (apply 'mh-exec-cmd "refile" "-src" folder dest msg-list)
1627 (push dest folders-changed))
1628 (setq redraw-needed-flag t)
1629 (mh-delete-scan-msgs mh-blacklist)
1630 (setq mh-blacklist nil)))
1632 ;; Whitelist messages.
1634 (let ((msg-list (mh-coalesce-msg-list mh-whitelist))
1635 (last (car (mh-translate-range mh-inbox "last"))))
1636 (mh-junk-process-whitelist mh-whitelist)
1637 (apply #'mh-exec-cmd "refile" "-src" folder mh-inbox msg-list)
1638 (push mh-inbox folders-changed)
1639 (setq redraw-needed-flag t)
1640 (mh-delete-scan-msgs mh-whitelist)
1641 (when mh-whitelist-preserves-sequences-flag
1643 (loop for i from (1+ (or last 0))
1644 for msg in (sort (copy-sequence mh-whitelist) #'<)
1645 do (loop for seq-name in (gethash msg seq-map)
1646 do (push i (gethash seq-name white-map))))
1648 #'(lambda (seq msgs)
1649 ;; Can't be run in background, since the current
1650 ;; folder is changed by mark this could lead to a
1651 ;; race condition with the next refile/whitelist.
1652 (apply #'mh-exec-cmd "mark"
1653 "-sequence" (symbol-name seq) mh-inbox
1654 "-add" (mapcar #'(lambda(x) (format "%s" x))
1655 (mh-coalesce-msg-list msgs))))
1657 (setq mh-whitelist nil)))
1659 ;; Don't need to remove sequences since delete and refile do so.
1661 (if (> (buffer-size) 0)
1662 (mh-define-sequence 'cur (list (or (mh-get-msg-num nil) "last"))))
1664 ;; Redraw folder buffer if needed
1665 (when (and redraw-needed-flag)
1666 (when (mh-speed-flists-active-p)
1667 (apply #'mh-speed-flists t folders-changed))
1668 (cond ((memq 'unthread mh-view-ops) (mh-thread-inc folder (point-max)))
1669 (mh-index-data (mh-index-insert-folder-headers))))
1671 (and (buffer-file-name (get-buffer mh-show-buffer))
1672 (not (file-exists-p (buffer-file-name (get-buffer mh-show-buffer))))
1673 ;; If "inc" were to put a new msg in this file,
1674 ;; we would not notice, so mark it invalid now.
1675 (mh-invalidate-show-buffer))
1677 (setq mh-seq-list (mh-read-folder-sequences mh-current-folder nil))
1678 (mh-remove-all-notation)
1679 (mh-notate-user-sequences)
1681 ;; Run the after hook -- now folders-changed is valid,
1682 ;; but not the lists of specific messages.
1683 (let ((mh-folders-changed folders-changed))
1684 (run-hooks 'mh-after-commands-processed-hook)))
1686 (message "Processing deletes and refiles for %s...done" folder)))
1688 (defun mh-delete-scan-msgs (msgs)
1689 "Delete the scan listing lines for MSGS."
1692 (when (mh-goto-msg (car msgs) t t)
1693 (when (memq 'unthread mh-view-ops)
1694 (mh-thread-forget-message (car msgs)))
1696 (setq msgs (cdr msgs)))))
1698 (defun mh-set-scan-mode ()
1699 "Display the scan listing buffer, but do not show a message."
1700 (if (get-buffer mh-show-buffer)
1701 (delete-windows-on mh-show-buffer))
1703 (force-mode-line-update)
1704 (if mh-recenter-summary-flag
1708 (defun mh-make-folder-mode-line (&optional ignored)
1709 "Set the fields of the mode line for a folder buffer.
1710 The optional argument is now obsolete and IGNORED. It used to be
1711 used to pass in what is now stored in the buffer-local variable
1712 `mh-mode-line-annotation'."
1714 (save-window-excursion
1716 (let ((new-first-msg-num (mh-get-msg-num nil)))
1717 (when (or (not (memq 'unthread mh-view-ops))
1718 (null mh-first-msg-num)
1719 (null new-first-msg-num)
1720 (< new-first-msg-num mh-first-msg-num))
1721 (setq mh-first-msg-num new-first-msg-num)))
1723 (let ((new-last-msg-num (mh-get-msg-num nil)))
1724 (when (or (not (memq 'unthread mh-view-ops))
1725 (null mh-last-msg-num)
1726 (null new-last-msg-num)
1727 (> new-last-msg-num mh-last-msg-num))
1728 (setq mh-last-msg-num new-last-msg-num)))
1729 (setq mh-msg-count (if mh-first-msg-num
1730 (count-lines (point-min) (point-max))
1732 (setq mode-line-buffer-identification
1733 (list (format " {%%b%s} %s msg%s"
1734 (if mh-mode-line-annotation
1735 (format "/%s" mh-mode-line-annotation)
1737 (if (zerop mh-msg-count)
1739 (format "%d" mh-msg-count))
1740 (if (zerop mh-msg-count)
1742 (cond ((> mh-msg-count 1)
1743 (format "s (%d-%d)" mh-first-msg-num
1746 (format " (%d)" mh-first-msg-num))
1748 (mh-logo-display))))
1751 (defun mh-scan-folder (folder range &optional dont-exec-pending)
1752 "Scan FOLDER over RANGE.
1754 After the scan is performed, switch to the buffer associated with
1757 Check the documentation of `mh-interactive-range' to see how RANGE is
1758 read in interactive use.
1760 The processing of outstanding commands is not performed if
1761 DONT-EXEC-PENDING is non-nil."
1762 (when (stringp range)
1763 (setq range (delete "" (split-string range "[ \t\n]"))))
1764 (cond ((null (get-buffer folder))
1765 (mh-make-folder folder))
1767 (unless dont-exec-pending
1768 (mh-process-or-undo-commands folder)
1769 (mh-reset-threads-and-narrowing))
1770 (switch-to-buffer folder)))
1771 (mh-regenerate-headers range)
1772 (if (zerop (buffer-size))
1773 (if (equal range "all")
1774 (message "Folder %s is empty" folder)
1775 (message "No messages in %s, range %s" folder range))
1777 (when (mh-outstanding-commands-p)
1778 (mh-notate-deleted-and-refiled)))
1781 (defun mh-process-or-undo-commands (folder)
1782 "If FOLDER has outstanding commands, then either process or discard them.
1783 Called by functions like `mh-sort-folder', so also invalidate
1786 (if (mh-outstanding-commands-p)
1787 (if (or mh-do-not-confirm-flag
1789 "Process outstanding deletes and refiles? "))
1790 (mh-process-commands folder)
1794 (mh-invalidate-show-buffer))
1797 (defun mh-regenerate-headers (range &optional update)
1798 "Scan folder over RANGE.
1799 If UPDATE, append the scan lines, otherwise replace."
1800 (let ((folder mh-current-folder)
1801 (range (if (and range (atom range)) (list range) range))
1803 (message "Scanning %s..." folder)
1804 (mh-remove-all-notation)
1805 (with-mh-folder-updating (nil)
1807 (goto-char (point-max))
1808 (delete-region (point-min) (point-max))
1809 (if mh-adaptive-cmd-note-flag
1810 (mh-set-cmd-note (mh-msg-num-width-to-column (mh-msg-num-width
1812 (setq scan-start (point))
1813 (apply #'mh-exec-cmd-output
1816 "-noclear" "-noheader"
1817 "-width" (window-width)
1819 (goto-char scan-start)
1820 (cond ((looking-at "scan: no messages in")
1821 (keep-lines mh-scan-valid-regexp)) ; Flush random scan lines
1822 ((looking-at (if (mh-variant-p 'gnu-mh)
1823 "scan: message set .* does not exist"
1824 "scan: bad message list "))
1825 (keep-lines mh-scan-valid-regexp))
1826 ((looking-at "scan: ")) ; Keep error messages
1828 (keep-lines mh-scan-valid-regexp))) ; Flush random scan lines
1829 (setq mh-seq-list (mh-read-folder-sequences folder nil))
1830 (mh-notate-user-sequences)
1832 (setq mh-mode-line-annotation
1833 (if (equal range '("all"))
1835 mh-partial-folder-mode-line-annotation)))
1836 (mh-make-folder-mode-line))
1837 (message "Scanning %s...done" folder)))
1840 (defun mh-reset-threads-and-narrowing ()
1841 "Reset all variables pertaining to threads and narrowing.
1842 Also removes all content from the folder buffer."
1843 (setq mh-view-ops ())
1844 (setq mh-folder-view-stack ())
1845 (setq mh-thread-scan-line-map-stack ())
1846 (let ((buffer-read-only nil)) (erase-buffer)))
1848 (defun mh-make-folder (name)
1849 "Create a new mail folder called NAME.
1850 Make it the current folder."
1851 (switch-to-buffer name)
1852 (setq buffer-read-only nil)
1854 (if mh-adaptive-cmd-note-flag
1855 (mh-set-cmd-note (mh-msg-num-width-to-column (mh-msg-num-width name))))
1856 (setq buffer-read-only t)
1858 (mh-set-folder-modified-p nil)
1859 (setq buffer-file-name mh-folder-filename)
1860 (when (and (not mh-index-data)
1861 (file-exists-p (concat buffer-file-name mh-index-data-file)))
1862 (mh-index-read-data))
1863 (mh-make-folder-mode-line))
1866 (defun mh-next-msg (&optional wait-after-complaining-flag)
1867 "Move backward or forward to the next undeleted message in the buffer.
1868 If optional argument WAIT-AFTER-COMPLAINING-FLAG is non-nil and
1869 we are at the last message, then wait for a second after telling
1870 the user that there aren't any more unread messages."
1871 (if (eq mh-next-direction 'forward)
1872 (mh-next-undeleted-msg 1 wait-after-complaining-flag)
1873 (mh-previous-undeleted-msg 1 wait-after-complaining-flag)))
1876 (defun mh-prompt-for-refile-folder ()
1877 "Prompt the user for a folder in which the message should be filed.
1878 The folder is returned as a string.
1880 The default folder name is generated by the option
1881 `mh-default-folder-for-message-function' if it is non-nil or
1882 `mh-folder-from-address'."
1883 (mh-prompt-for-folder
1885 (let ((refile-file (ignore-errors (mh-msg-filename (mh-get-msg-num t)))))
1886 (if (null refile-file) ""
1887 (with-current-buffer (get-buffer-create mh-temp-buffer)
1889 (insert-file-contents refile-file)
1890 (or (and mh-default-folder-for-message-function
1891 (let ((buffer-file-name refile-file))
1892 (funcall mh-default-folder-for-message-function)))
1893 (mh-folder-from-address)
1894 (and (eq 'refile (car mh-last-destination-folder))
1895 (symbol-name (cdr mh-last-destination-folder)))
1900 (defun mh-folder-from-address ()
1901 "Derive folder name from sender.
1903 The name of the folder is derived as follows:
1905 a) The folder name associated with the first address found in
1906 the list `mh-default-folder-list' is used. Each element in
1907 this list contains a \"Check Recipient\" item. If this item is
1908 turned on, then the address is checked against the recipient
1909 instead of the sender. This is useful for mailing lists.
1911 b) An alias prefixed by `mh-default-folder-prefix'
1912 corresponding to the address is used. The prefix is used to
1913 prevent clutter in your mail directory.
1915 Return nil if a folder name was not derived, or if the variable
1916 `mh-default-folder-must-exist-flag' is t and the folder does not
1918 ;; Loop for all entries in mh-default-folder-list
1920 (goto-char (point-min))
1921 (re-search-forward "\n\n" nil 'limit)
1922 (narrow-to-region (point-min) (point))
1923 (let ((to/cc (concat (or (message-fetch-field "to") "") ", "
1924 (or (message-fetch-field "cc") "")))
1925 (from (or (message-fetch-field "from") ""))
1928 (loop for list in mh-default-folder-list
1929 when (string-match (nth 0 list) (if (nth 2 list) to/cc from))
1931 finally return nil))
1933 ;; Make sure a result from `mh-default-folder-list' begins with "+"
1934 ;; since 'mh-expand-file-name below depends on it
1935 (when (and folder-name (not (eq (aref folder-name 0) ?+)))
1936 (setq folder-name (concat "+" folder-name)))
1938 ;; If not, is there an alias for the address?
1939 (when (not folder-name)
1940 (let* ((from-header (mh-extract-from-header-value))
1941 (address (and from-header
1942 (nth 1 (mail-extract-address-components
1944 (alias (and address (mh-alias-address-to-alias address))))
1947 (and alias (concat "+" mh-default-folder-prefix alias))))))
1949 ;; If mh-default-folder-must-exist-flag set, check that folder exists.
1950 (if (and folder-name
1951 (or (not mh-default-folder-must-exist-flag)
1952 (file-exists-p (mh-expand-file-name folder-name))))
1956 (defun mh-delete-a-msg (message)
1958 If MESSAGE is nil then the message at point is deleted.
1959 The hook `mh-delete-msg-hook' is called after you mark a message
1960 for deletion. For example, a past maintainer of MH-E used this
1961 once when he kept statistics on his mail usage."
1963 (if (numberp message)
1964 (mh-goto-msg message nil t)
1966 (setq message (mh-get-msg-num t)))
1967 (if (looking-at mh-scan-refiled-msg-regexp)
1968 (error "Message %d is refiled; undo refile before deleting" message))
1969 (if (looking-at mh-scan-blacklisted-msg-regexp)
1970 (error "Message %d is blacklisted; undo before deleting" message))
1971 (if (looking-at mh-scan-whitelisted-msg-regexp)
1972 (error "Message %d is whitelisted; undo before deleting" message))
1973 (if (looking-at mh-scan-deleted-msg-regexp)
1975 (mh-set-folder-modified-p t)
1976 (setq mh-delete-list (cons message mh-delete-list))
1977 (mh-notate nil mh-note-deleted mh-cmd-note)
1978 (run-hooks 'mh-delete-msg-hook))))
1981 (defun mh-refile-a-msg (message folder)
1982 "Refile MESSAGE in FOLDER.
1983 If MESSAGE is nil then the message at point is refiled.
1984 Folder is a symbol, not a string.
1985 The hook `mh-refile-msg-hook' is called after a message is marked to
1988 (if (numberp message)
1989 (mh-goto-msg message nil t)
1991 (setq message (mh-get-msg-num t)))
1992 (cond ((looking-at mh-scan-deleted-msg-regexp)
1993 (error "Message %d is deleted; undo delete before moving" message))
1994 ((looking-at mh-scan-blacklisted-msg-regexp)
1995 (error "Message %d is blacklisted; undo before moving" message))
1996 ((looking-at mh-scan-whitelisted-msg-regexp)
1997 (error "Message %d is whitelisted; undo before moving" message))
1998 ((looking-at mh-scan-refiled-msg-regexp)
2000 (format "Message %d already refiled; copy to %s as well? "
2002 (mh-exec-cmd "refile" (mh-get-msg-num t) "-link"
2003 "-src" mh-current-folder
2004 (symbol-name folder))
2005 (message "Message not copied")))
2007 (mh-set-folder-modified-p t)
2008 (cond ((null (assoc folder mh-refile-list))
2009 (push (list folder message) mh-refile-list))
2010 ((not (member message (cdr (assoc folder mh-refile-list))))
2011 (push message (cdr (assoc folder mh-refile-list)))))
2012 (mh-notate nil mh-note-refiled mh-cmd-note)
2013 (run-hooks 'mh-refile-msg-hook)))))
2015 (defun mh-undo-msg (msg)
2016 "Undo the deletion, refile, black- or whitelisting of one MSG.
2017 If MSG is nil then act on the message at point"
2020 (mh-goto-msg msg t t)
2022 (setq msg (mh-get-msg-num t)))
2023 (cond ((memq msg mh-delete-list)
2024 (setq mh-delete-list (delq msg mh-delete-list)))
2025 ((memq msg mh-blacklist)
2026 (setq mh-blacklist (delq msg mh-blacklist)))
2027 ((memq msg mh-whitelist)
2028 (setq mh-whitelist (delq msg mh-whitelist)))
2030 (dolist (folder-msg-list mh-refile-list)
2031 (setf (cdr folder-msg-list) (remove msg (cdr folder-msg-list))))
2032 (setq mh-refile-list (loop for x in mh-refile-list
2033 unless (null (cdr x)) collect x))))
2034 (mh-notate nil ? mh-cmd-note)))
2037 (defun mh-msg-filename (msg &optional folder)
2038 "Return the file name of MSG in FOLDER (default current folder)."
2039 (expand-file-name (int-to-string msg)
2041 (mh-expand-file-name folder)
2042 mh-folder-filename)))
2044 (provide 'mh-folder)
2047 ;; indent-tabs-mode: nil
2048 ;; sentence-end-double-space: nil
2051 ;;; mh-folder.el ends here