--- /dev/null
+;;; mh-e.el --- GNU Emacs interface to the MH mailer
+
+;;; (Version: 3.7 for GNU Emacs Version 18 and MH.5 and MH.6)
+
+(defvar mh-e-RCS-id)
+(setq mh-e-RCS-id "$Header: /var/home/larus/lib/emacs/RCS/mh-e.el,v 3.1 90/09/28 15:47:58 larus Exp Locker: larus $")
+;;; Copyright (C) 1985-89 Free Software Foundation
+;;; Author: James Larus (larus@ginger.Berkeley.EDU or ucbvax!larus)
+;;; Please send suggestions and corrections to the above address.
+;;;
+;;; This file contains mh-e, a GNU Emacs front end to the MH mail system.
+
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but without any warranty. No author or distributor
+;; accepts responsibility to anyone for the consequences of using it
+;; or for whether it serves any particular purpose or works at all,
+;; unless he says so in writing.
+
+;; Everyone is granted permission to copy, modify and redistribute
+;; GNU Emacs, but only under the conditions described in the
+;; document "GNU Emacs copying permission notice". An exact copy
+;; of the document is supposed to have been given to you along with
+;; GNU Emacs so that you can know how you may redistribute it all.
+;; It should be in a file named COPYING. Among other things, the
+;; copyright notice and this notice must be preserved on all copies.
+
+
+;;; Original version for Gosling emacs by Brian Reid, Stanford, 1982.
+;;; Modified by James Larus, BBN, July 1984 and UCB, 1984 & 1985.
+;;; Rewritten for GNU Emacs, James Larus 1985. larus@ginger.berkeley.edu
+;;; Modified by Stephen Gildea 1988. gildea@bbn.com
+
+
+;;; NB. MH must have been compiled with the MHE compiler flag or several
+;;; features necessary mh-e will be missing from MH commands, specifically
+;;; the -build switch to repl and forw.
+
+\f
+
+;;; Constants:
+
+;;; Set for local environment:
+;;;* These are now in paths.el.
+;;;(defvar mh-progs "/usr/new/mh/" "Directory containing MH commands.")
+;;;(defvar mh-lib "/usr/new/lib/mh/" "Directory of MH library.")
+
+(defvar mh-redist-full-contents t
+ "Non-nil if the `dist' command needs whole letter for redistribution.
+This is the case when `send' is compiled with the BERK option.")
+
+
+;;; Hooks:
+
+(defvar mh-folder-mode-hook nil
+ "Invoked in `mh-folder mode' on a new folder.")
+
+(defvar mh-letter-mode-hook nil
+ "Invoked in `mh-letter-mode' on a new letter.")
+
+(defvar mh-compose-letter-function nil
+ "Invoked in `mh-compose-and-send-mail' on a draft letter.
+It is passed three arguments: TO recipients, SUBJECT, and CC recipients.")
+
+(defvar mh-before-send-letter-hook nil
+ "Invoked at the beginning of the \\[mh-send-letter] command.")
+
+(defvar mh-inc-folder-hook nil
+ "Invoked after incorporating mail into a folder with \\[mh-inc-folder].")
+
+(defvar mh-quit-hook nil
+ "Invoked after quitting mh-e with \\[mh-quit].")
+
+
+(defvar mh-ins-string nil
+ "Temporarily set by `mh-insert-prefix' prior to running `mh-yank-hooks'.")
+
+(defvar mh-yank-hooks
+ '(lambda ()
+ (save-excursion
+ (goto-char (point))
+ (or (bolp) (forward-line 1))
+ (while (< (point) (mark))
+ (insert mh-ins-string)
+ (forward-line 1))))
+ "Hook to run citation function.
+Expects POINT and MARK to be set to the region to cite.")
+
+
+;;; Personal preferences:
+
+(defvar mh-clean-message-header nil
+ "*Non-nil means clean headers of messages that are displayed or inserted.
+The variables `mh-visible-headers' and `mh-invisible-headers' control what
+is removed.")
+
+(defvar mh-visible-headers nil
+ "*If non-nil, contains a regexp specifying the headers to keep when cleaning.
+Only used if `mh-clean-message-header' is non-nil. Setting this variable
+overrides `mh-invisible-headers'.")
+
+(defvar mhl-formfile nil
+ "*Name of format file to be used by mhl to show messages.
+A value of T means use the default format file.
+Nil means don't use mhl to format messages.")
+
+(defvar mh-lpr-command-format "lpr -p -J '%s'"
+ "*Format for Unix command that prints a message.
+The string should be a Unix command line, with the string '%s' where
+the job's name (folder and message number) should appear. The message text
+is piped to this command.")
+
+(defvar mh-print-background nil
+ "*Print messages in the background if non-nil.
+WARNING: do not delete the messages until printing is finished;
+otherwise, your output may be truncated.")
+
+(defvar mh-summary-height 4
+ "*Number of lines in summary window.")
+
+(defvar mh-recenter-summary-p nil
+ "*Recenter summary window when the show window is toggled off if non-nil.")
+
+(defvar mh-ins-buf-prefix ">> "
+ "*String to put before each non-blank line of a yanked or inserted message.
+Used when the message is inserted in an outgoing letter.")
+
+(defvar mh-do-not-confirm nil
+ "*Non-nil means do not prompt for confirmation before some commands.
+Only affects certain innocuous commands.")
+
+(defvar mh-bury-show-buffer t
+ "*Non-nil means that the displayed show buffer for a folder is buried.")
+
+(defvar mh-delete-yanked-msg-window nil
+ "*Controls window display when a message is yanked by \\[mh-yank-cur-msg].
+If non-nil, yanking the current message into a draft letter deletes any
+windows displaying the message.")
+
+(defvar mh-yank-from-start-of-msg t
+ "*Controls which part of a message is yanked by \\[mh-yank-cur-msg].
+If non-nil, include the entire message. If the symbol `body, then yank the
+message minus the header. If nil, yank only the portion of the message
+following the point. If the show buffer has a region, this variable is
+ignored.")
+
+(defvar mh-reply-default-reply-to nil
+ "*Sets the person or persons to whom a reply will be sent.
+If nil, prompt for recipient. If non-nil, then \\[mh-reply] will use this
+value and it should be one of \"from\", \"to\", or \"cc\".")
+
+(defvar mh-recursive-folders nil
+ "*If non-nil, then commands which operate on folders do so recursively.")
+
+
+;;; Parameterize mh-e to work with different scan formats. The defaults work
+;;; the standard MH scan listings.
+
+(defvar mh-cmd-note 4
+ "Offset to insert notation.")
+
+(defvar mh-note-repl "-"
+ "String whose first character is used to notate replied to messages.")
+
+(defvar mh-note-forw "F"
+ "String whose first character is used to notate forwarded messages.")
+
+(defvar mh-note-dist "R"
+ "String whose first character is used to notate redistributed messages.")
+
+(defvar mh-good-msg-regexp "^....[^D^]"
+ "Regexp specifiying the scan lines that are 'good' messages.")
+
+(defvar mh-deleted-msg-regexp "^....D"
+ "Regexp matching scan lines of deleted messages.")
+
+(defvar mh-refiled-msg-regexp "^....\\^"
+ "Regexp matching scan lines of refiled messages.")
+
+(defvar mh-valid-scan-line "^ *[0-9]"
+ "Regexp matching scan lines for messages (not error messages).")
+
+(defvar mh-msg-number-regexp "^ *\\([0-9]+\\)"
+ "Regexp to find the number of a message in a scan line.
+The message's number must be surrounded with \\( \\)")
+
+(defvar mh-msg-search-regexp "^[^0-9]*%d[^0-9]"
+ "Format string containing a regexp matching the scan listing for a message.
+The desired message's number will be an argument to format.")
+
+(defvar mh-flagged-scan-msg-regexp "^....\\D\\|^....\\^\\|^....\\+\\|^.....%"
+ "Regexp matching flagged scan lines.
+Matches lines marked as deleted, refiled, in a sequence, or the cur message.")
+
+(defvar mh-cur-scan-msg-regexp "^....\\+"
+ "Regexp matching scan line for the cur message.")
+
+(defvar mh-show-buffer-mode-line-buffer-id "{%%b} %s/%d"
+ "Format string to produce `mode-line-buffer-id' for show buffers.
+First argument is folder name. Second is message number.")
+
+(defvar mh-partial-folder-mode-line-annotation "select"
+ "Annotation when displaying part of a folder.
+The string is displayed after the folder's name. NIL for no annotation.")
+
+
+;;; Real constants:
+
+(defvar mh-invisible-headers
+ "^Received: \\|^Message-Id: \\|^Remailed-\\|^Via: \\|^Mail-from: \\|^Return-Path: \\|^In-Reply-To: \\|^Resent-"
+ "Regexp matching lines in a message header that are not to be shown.
+If `mh-visible-headers' is non-nil, it is used instead to specify what
+to keep.")
+
+(defvar mh-rejected-letter-start "^ ----- Unsent message follows -----$"
+ "Regexp specifying the beginning of the wrapper around a returned letter.
+This wrapper is generated by the mail system when rejecting a letter.")
+
+(defvar mh-to-field-choices '((?t . "To:") (?s . "Subject:") (?c . "Cc:")
+ (?b . "Bcc:") (?f . "Fcc:"))
+ "A-list of (character . field name) strings for mh-to-field.")
+
+
+;;; Global variables:
+
+(defvar mh-user-path ""
+ "User's mail folder.")
+
+(defvar mh-last-destination nil
+ "Destination of last refile or write command.")
+
+(defvar mh-folder-mode-map (make-keymap)
+ "Keymap for MH folders.")
+
+(defvar mh-letter-mode-map (copy-keymap text-mode-map)
+ "Keymap for composing mail.")
+
+(defvar mh-pick-mode-map (make-sparse-keymap)
+ "Keymap for searching folder.")
+
+(defvar mh-letter-mode-syntax-table nil
+ "Syntax table used while in mh-e letter mode.")
+
+(if mh-letter-mode-syntax-table
+ ()
+ (setq mh-letter-mode-syntax-table
+ (make-syntax-table text-mode-syntax-table))
+ (set-syntax-table mh-letter-mode-syntax-table)
+ (modify-syntax-entry ?% "." mh-letter-mode-syntax-table))
+
+(defvar mh-folder-list nil
+ "List of folder names for completion.")
+
+(defvar mh-draft-folder nil
+ "Name of folder containing draft messages.
+NIL means do not use draft folder.")
+
+(defvar mh-unseen-seq nil
+ "Name of the unseen sequence.")
+
+(defvar mh-previous-window-config nil
+ "Window configuration before mh-e command.")
+
+(defvar mh-previous-seq nil
+ "Name of the sequence to which a message was last added.")
+
+(defvar mh-signature-file-name "~/.signature"
+ "Name of file containing the user's signature.")
+
+
+;;; Macros and generic functions:
+
+(defmacro mh-push (v l)
+ (list 'setq l (list 'cons v l)))
+
+
+(defmacro mh-when (pred &rest body)
+ (list 'cond (cons pred body)))
+
+
+(defmacro with-mh-folder-updating (save-modification-flag-p &rest body)
+ ;; Format is (with-mh-folder-updating (SAVE-MODIFICATION-FLAG-P) &body BODY).
+ ;; Execute BODY, which can modify the folder buffer without having to
+ ;; worry about file locking or the read-only flag, and return its result.
+ ;; If SAVE-MODIFICATION-FLAG-P is non-nil, the buffer's modification
+ ;; flag is unchanged, otherwise it is cleared.
+ (setq save-modification-flag-p (car save-modification-flag-p)) ; CL style
+ (` (let ((folder-updating-mod-flag (buffer-modified-p)))
+ (prog1
+ (let ((buffer-read-only nil)
+ (buffer-file-name nil)) ; don't let the buffer get locked
+ (,@ body))
+ (, (if save-modification-flag-p
+ '(mh-set-folder-modified-p folder-updating-mod-flag)
+ '(mh-set-folder-modified-p nil)))))))
+
+
+(defun mh-mapc (func list)
+ (while list
+ (funcall func (car list))
+ (setq list (cdr list))))
+
+\f
+
+;;; Entry points:
+
+;;;###autoload
+(defun mh-rmail (&optional arg)
+ "Inc(orporate) new mail (no arg) or scan a MH mail box (arg given).
+This front end uses the MH mail system, which uses different conventions
+from the usual mail system."
+ (interactive "P")
+ (mh-find-path)
+ (if arg
+ (call-interactively 'mh-visit-folder)
+ (mh-inc-folder)))
+
+
+;;;###autoload
+(defun mh-smail ()
+ "Compose and send mail with the MH mail system."
+ (interactive)
+ (mh-find-path)
+ (call-interactively 'mh-send))
+
+
+(defun mh-smail-other-window ()
+ "Compose and send mail in other window with the MH mail system."
+ (interactive)
+ (mh-find-path)
+ (call-interactively 'mh-send-other-window))
+
+\f
+
+;;; User executable mh-e commands:
+
+(defun mh-burst-digest ()
+ "Burst apart the current message, which should be a digest.
+The message is replaced by its table of contents and the letters from the
+digest are inserted into the folder after that message."
+ (interactive)
+ (let ((digest (mh-get-msg-num t)))
+ (mh-process-or-undo-commands mh-current-folder)
+ (mh-set-folder-modified-p t) ; lock folder while bursting
+ (message "Bursting digest...")
+ (mh-exec-cmd "burst" mh-current-folder digest "-inplace")
+ (mh-scan-folder mh-current-folder (format "%d-last" mh-first-msg-num))
+ (message "Bursting digest...done")))
+
+
+(defun mh-copy-msg (prefix-provided msg-or-seq dest)
+ "Copy specified MESSAGE(s) to another FOLDER without deleting them.
+Default is the displayed message. If optional prefix argument is
+provided, then prompt for the message sequence."
+ (interactive (list current-prefix-arg
+ (if current-prefix-arg
+ (mh-read-seq-default "Copy" t)
+ (mh-get-msg-num t))
+ (mh-prompt-for-folder "Copy to" "" t)))
+ (mh-exec-cmd "refile" msg-or-seq "-link" "-src" mh-current-folder dest)
+ (if prefix-provided
+ (mh-notate-seq msg-or-seq ?C mh-cmd-note)
+ (mh-notate msg-or-seq ?C mh-cmd-note)))
+
+
+(defun mh-delete-msg (msg-or-seq)
+ "Mark the specified MESSAGE(s) for subsequent deletion and move to the next.
+Default is the displayed message. If optional prefix argument is
+given then prompt for the message sequence."
+ (interactive (list (if current-prefix-arg
+ (mh-read-seq-default "Delete" t)
+ (mh-get-msg-num t))))
+ (if (numberp msg-or-seq)
+ (mh-delete-a-msg msg-or-seq)
+ (mh-map-to-seq-msgs 'mh-delete-a-msg msg-or-seq))
+ (mh-next-msg))
+
+
+(defun mh-delete-msg-no-motion (msg-or-seq)
+ "Mark the specified MESSAGE(s) for subsequent deletion.
+Default is the displayed message. If optional prefix argument is
+provided, then prompt for the message sequence."
+ (interactive (list (if current-prefix-arg
+ (mh-read-seq-default "Delete" t)
+ (mh-get-msg-num t))))
+ (if (numberp msg-or-seq)
+ (mh-delete-a-msg msg-or-seq)
+ (mh-map-to-seq-msgs 'mh-delete-a-msg msg-or-seq)))
+
+
+(defun mh-delete-msg-from-seq (prefix-provided msg-or-seq &optional from-seq)
+ "Delete MESSAGE (default: displayed message) from SEQUENCE.
+If optional prefix argument provided, then delete all messages
+from a sequence."
+ (interactive (let ((argp current-prefix-arg))
+ (list argp
+ (if argp
+ (mh-read-seq-default "Delete" t)
+ (mh-get-msg-num t))
+ (if (not argp)
+ (mh-read-seq-default "Delete from" t)))))
+ (if prefix-provided
+ (mh-remove-seq msg-or-seq)
+ (mh-remove-msg-from-seq msg-or-seq from-seq)))
+
+
+(defun mh-edit-again (msg)
+ "Clean-up a draft or a message previously sent and make it resendable."
+ (interactive (list (mh-get-msg-num t)))
+ (let* ((from-folder mh-current-folder)
+ (config (current-window-configuration))
+ (draft
+ (cond ((and mh-draft-folder (equal from-folder mh-draft-folder))
+ (find-file (mh-msg-filename msg))
+ (rename-buffer (format "draft-%d" msg))
+ (buffer-name))
+ (t
+ (mh-read-draft "clean-up" (mh-msg-filename msg) nil)))))
+ (mh-clean-msg-header (point-min)
+ "^Date:\\|^Received:\\|^Message-Id:\\|^From:"
+ nil)
+ (goto-char (point-min))
+ (set-buffer-modified-p nil)
+ (mh-compose-and-send-mail draft "" from-folder nil nil nil nil nil nil
+ config)))
+
+
+(defun mh-execute-commands ()
+ "Process outstanding delete and refile requests."
+ (interactive)
+ (if mh-narrowed-to-seq (mh-widen))
+ (mh-process-commands mh-current-folder)
+ (mh-set-scan-mode)
+ (mh-goto-cur-msg) ; after mh-set-scan-mode for efficiency
+ (mh-make-folder-mode-line)
+ t) ; return t for write-file-hooks
+
+
+(defun mh-extract-rejected-mail (msg)
+ "Extract a letter returned by the mail system and make it resendable.
+Default is the displayed message."
+ (interactive (list (mh-get-msg-num t)))
+ (let ((from-folder mh-current-folder)
+ (config (current-window-configuration))
+ (draft (mh-read-draft "extraction" (mh-msg-filename msg) nil)))
+ (goto-char (point-min))
+ (cond ((re-search-forward mh-rejected-letter-start nil t)
+ (forward-char 1)
+ (delete-region (point-min) (point))
+ (mh-clean-msg-header (point-min)
+ "^Date:\\|^Received:\\|^Message-Id:\\|^From:\\|^Sender:"
+ nil))
+ (t
+ (message "Does not appear to be a rejected letter.")))
+ (goto-char (point-min))
+ (set-buffer-modified-p nil)
+ (mh-compose-and-send-mail draft "" from-folder msg (mh-get-field "To")
+ (mh-get-field "From") (mh-get-field "cc")
+ nil nil config)))
+
+
+(defun mh-first-msg ()
+ "Move to the first message."
+ (interactive)
+ (goto-char (point-min)))
+
+
+(defun mh-forward (prefix-provided msg-or-seq to cc)
+ "Forward MESSAGE(s) (default: displayed message).
+If optional prefix argument provided, then prompt for the message sequence."
+ (interactive (list current-prefix-arg
+ (if current-prefix-arg
+ (mh-read-seq-default "Forward" t)
+ (mh-get-msg-num t))
+ (read-string "To: ")
+ (read-string "Cc: ")))
+ (let* ((folder mh-current-folder)
+ (config (current-window-configuration))
+ ;; forw always leaves file in "draft" since it doesn't have -draft
+ (draft-name (expand-file-name "draft" mh-user-path))
+ (draft (cond ((or (not (file-exists-p draft-name))
+ (y-or-n-p "The file 'draft' exists. Discard it? "))
+ (mh-exec-cmd "forw"
+ "-build" mh-current-folder msg-or-seq)
+ (prog1
+ (mh-read-draft "" draft-name t)
+ (mh-insert-fields "To:" to "Cc:" cc)
+ (set-buffer-modified-p nil)))
+ (t
+ (mh-read-draft "" draft-name nil)))))
+ (goto-char (point-min))
+ (re-search-forward "^------- Forwarded Message")
+ (forward-line -1)
+ (narrow-to-region (point) (point-max))
+ (let* ((subject (save-excursion (mh-get-field "From:")))
+ (trim (string-match "<" subject))
+ (forw-subject (save-excursion (mh-get-field "Subject:"))))
+ (if trim
+ (setq subject (substring subject 0 (1- trim))))
+ (widen)
+ (save-excursion
+ (mh-insert-fields "Subject:" (format "[%s: %s]" subject forw-subject)))
+ (delete-other-windows)
+ (if prefix-provided
+ (mh-add-msgs-to-seq (mh-seq-to-msgs msg-or-seq) 'forwarded t)
+ (mh-add-msgs-to-seq msg-or-seq 'forwarded t))
+ (mh-compose-and-send-mail draft "" folder msg-or-seq
+ to subject cc
+ mh-note-forw "Forwarded:"
+ config))))
+
+
+(defun mh-goto-msg (number &optional no-error-if-no-message dont-show)
+ "Position the cursor at message NUMBER.
+Non-nil second argument means do not signal an error if message does not exist.
+Non-nil third argument means not to show the message.
+Return non-nil if cursor is at message."
+ (interactive "NMessage number? ")
+ (let ((cur-msg (mh-get-msg-num nil))
+ (starting-place (point))
+ (msg-pattern (mh-msg-search-pat number)))
+ (cond ((cond ((and cur-msg (= cur-msg number)) t)
+ ((and cur-msg
+ (< cur-msg number)
+ (re-search-forward msg-pattern nil t)) t)
+ ((and cur-msg
+ (> cur-msg number)
+ (re-search-backward msg-pattern nil t)) t)
+ (t ; Do thorough search of buffer
+ (goto-char (point-max))
+ (re-search-backward msg-pattern nil t)))
+ (beginning-of-line)
+ (if (not dont-show) (mh-maybe-show number))
+ t)
+ (t
+ (goto-char starting-place)
+ (if (not no-error-if-no-message)
+ (error "No message %d" number))
+ nil))))
+
+
+(defun mh-inc-folder (&optional maildrop-name)
+ "Inc(orporate) new mail into +inbox.
+Optional prefix argument specifies an alternate maildrop from the default.
+If this is given, mail is incorporated into the current folder, rather
+than +inbox. Run `mh-inc-folder-hook' after incorporating new mail."
+ (interactive (list (if current-prefix-arg
+ (expand-file-name
+ (read-file-name "inc mail from file: "
+ mh-user-path)))))
+ (let ((config (current-window-configuration)))
+ (if (not maildrop-name)
+ (cond ((not (get-buffer "+inbox"))
+ (mh-make-folder "+inbox")
+ (setq mh-previous-window-config config))
+ ((not (eq (current-buffer) (get-buffer "+inbox")))
+ (switch-to-buffer "+inbox")
+ (setq mh-previous-window-config config)))))
+ (mh-get-new-mail maildrop-name)
+ (run-hooks 'mh-inc-folder-hook))
+
+
+(defun mh-kill-folder ()
+ "Remove the current folder."
+ (interactive)
+ (if (or mh-do-not-confirm
+ (yes-or-no-p (format "Remove folder %s? " mh-current-folder)))
+ (let ((folder mh-current-folder))
+ (mh-set-folder-modified-p t) ; lock folder to kill it
+ (mh-exec-cmd-daemon "rmf" folder)
+ (mh-remove-folder-from-folder-list folder)
+ (message "Folder %s removed" folder)
+ (mh-set-folder-modified-p nil) ; so kill-buffer doesn't complain
+ (kill-buffer mh-show-buffer)
+ (kill-buffer folder))
+ (message "Folder not removed")))
+
+
+(defun mh-last-msg ()
+ "Move to the last message."
+ (interactive)
+ (goto-char (point-max))
+ (while (and (not (bobp)) (looking-at "^$"))
+ (forward-line -1)))
+
+
+(defun mh-list-folders ()
+ "List mail folders."
+ (interactive)
+ (with-output-to-temp-buffer " *mh-temp*"
+ (save-excursion
+ (switch-to-buffer " *mh-temp*")
+ (erase-buffer)
+ (message "Listing folders...")
+ (mh-exec-cmd-output "folders" t)
+ (goto-char (point-min))
+ (message "Listing folders...done"))))
+
+
+(defun mh-msg-is-in-seq (msg)
+ "Display the sequences that contain MESSAGE (default: displayed message)."
+ (interactive (list (mh-get-msg-num t)))
+ (message "Message %d is in sequences: %s"
+ msg
+ (mapconcat 'concat
+ (mh-list-to-string (mh-seq-containing-msg msg))
+ " ")))
+
+
+(defun mh-narrow-to-seq (seq)
+ "Restrict display of this folder to just messages in a sequence.
+Reads which sequence. Use \\[mh-widen] to undo this command."
+ (interactive (list (mh-read-seq "Narrow to" t)))
+ (let ((eob (point-max)))
+ (with-mh-folder-updating (t)
+ (cond ((mh-seq-to-msgs seq)
+ (mh-copy-seq-to-point seq eob)
+ (narrow-to-region eob (point-max))
+ (mh-make-folder-mode-line (symbol-name seq))
+ (mh-recenter nil)
+ (setq mh-narrowed-to-seq seq))
+ (t
+ (error "No messages in sequence `%s'" (symbol-name seq)))))))
+
+
+(defun mh-next-undeleted-msg (&optional arg)
+ "Move to next undeleted message in window."
+ (interactive "P")
+ (forward-line (prefix-numeric-value arg))
+ (setq mh-next-direction 'forward)
+ (cond ((re-search-forward mh-good-msg-regexp nil 0 arg)
+ (beginning-of-line)
+ (mh-maybe-show))
+ (t
+ (forward-line -1)
+ (if (get-buffer mh-show-buffer)
+ (delete-windows-on mh-show-buffer)))))
+
+
+(defun mh-pack-folder (range)
+ "Renumber the messages of a folder to be 1..n.
+First, offer to execute any outstanding commands for the current folder.
+If optional prefix argument provided, prompt for the range of messages
+to display after packing. Otherwise, show the entire folder."
+ (interactive (list (if current-prefix-arg
+ (mh-read-msg-range
+ "Range to scan after packing [all]? ")
+ "all")))
+ (mh-pack-folder-1 range)
+ (mh-goto-cur-msg)
+ (message "Packing folder...done"))
+
+
+(defun mh-pipe-msg (prefix-provided command)
+ "Pipe the current message through the given shell COMMAND.
+If optional prefix argument is provided, send the entire message.
+Otherwise just send the message's body."
+ (interactive
+ (list current-prefix-arg (read-string "Shell command on message: ")))
+ (save-excursion
+ (set-buffer mh-show-buffer)
+ (goto-char (point-min))
+ (if (not prefix-provided) (search-forward "\n\n"))
+ (shell-command-on-region (point) (point-max) command nil)))
+
+
+(defun mh-refile-msg (prefix-provided msg-or-seq dest)
+ "Refile MESSAGE(s) (default: displayed message) in FOLDER.
+If optional prefix argument provided, then prompt for message sequence."
+ (interactive
+ (list current-prefix-arg
+ (if current-prefix-arg
+ (mh-read-seq-default "Refile" t)
+ (mh-get-msg-num t))
+ (intern
+ (mh-prompt-for-folder "Destination"
+ (if (eq 'refile (car mh-last-destination))
+ (symbol-name (cdr mh-last-destination))
+ "")
+ t))))
+ (setq mh-last-destination (cons 'refile dest))
+ (if prefix-provided
+ (mh-map-to-seq-msgs 'mh-refile-a-msg msg-or-seq dest)
+ (mh-refile-a-msg msg-or-seq dest))
+ (mh-next-msg))
+
+
+(defun mh-refile-or-write-again (msg)
+ "Re-execute the last refile or write command on the given MESSAGE.
+Default is the displayed message. Use the same folder or file as the
+previous refile or write command."
+ (interactive (list (mh-get-msg-num t)))
+ (if (null mh-last-destination)
+ (error "No previous refile or write"))
+ (cond ((eq (car mh-last-destination) 'refile)
+ (mh-refile-a-msg msg (cdr mh-last-destination))
+ (message "Destination folder: %s" (cdr mh-last-destination)))
+ (t
+ (mh-write-msg-to-file msg (cdr mh-last-destination))
+ (message "Destination: %s" (cdr mh-last-destination))))
+ (mh-next-msg))
+
+
+(defun mh-reply (prefix-provided msg)
+ "Reply to a MESSAGE (default: displayed message).
+If optional prefix argument provided, then include the message in the reply
+using filter mhl.reply in your MH directory."
+ (interactive (list current-prefix-arg (mh-get-msg-num t)))
+ (let ((minibuffer-help-form
+ "from => Sender only\nto => Sender and primary recipients\ncc or all => Sender and all recipients"))
+ (let ((reply-to (or mh-reply-default-reply-to
+ (completing-read "Reply to whom: "
+ '(("from") ("to") ("cc") ("all"))
+ nil
+ t)))
+ (folder mh-current-folder)
+ (show-buffer mh-show-buffer)
+ (config (current-window-configuration)))
+ (message "Composing a reply...")
+ (cond ((or (equal reply-to "from") (equal reply-to ""))
+ (apply 'mh-exec-cmd
+ "repl" "-build"
+ "-nodraftfolder" mh-current-folder
+ msg
+ "-nocc" "all"
+ (if prefix-provided
+ (list "-filter" "mhl.reply"))))
+ ((equal reply-to "to")
+ (apply 'mh-exec-cmd
+ "repl" "-build"
+ "-nodraftfolder" mh-current-folder
+ msg
+ "-cc" "to"
+ (if prefix-provided
+ (list "-filter" "mhl.reply"))))
+ ((or (equal reply-to "cc") (equal reply-to "all"))
+ (apply 'mh-exec-cmd
+ "repl" "-build"
+ "-nodraftfolder" mh-current-folder
+ msg
+ "-cc" "all" "-nocc" "me"
+ (if prefix-provided
+ (list "-filter" "mhl.reply")))))
+
+ (let ((draft (mh-read-draft "reply"
+ (expand-file-name "reply" mh-user-path)
+ t)))
+ (delete-other-windows)
+ (set-buffer-modified-p nil)
+
+ (let ((to (mh-get-field "To:"))
+ (subject (mh-get-field "Subject:"))
+ (cc (mh-get-field "Cc:")))
+ (goto-char (point-min))
+ (mh-goto-header-end 1)
+ (if (not prefix-provided)
+ (mh-display-msg msg folder))
+ (mh-add-msgs-to-seq msg 'answered t)
+ (message "Composing a reply...done")
+ (mh-compose-and-send-mail draft "" folder msg to subject cc
+ mh-note-repl "Replied:" config))))))
+
+
+(defun mh-quit ()
+ "Restore the previous window configuration, if one exists.
+Finish by running mh-quit-hook."
+ (interactive)
+ (if mh-previous-window-config
+ (set-window-configuration mh-previous-window-config))
+ (run-hooks 'mh-quit-hook))
+
+
+(defun mh-page-digest ()
+ "Advance displayed message to next digested message."
+ (interactive)
+ (save-excursion
+ (mh-show-message-in-other-window)
+ ;; Go to top of screen (in case user moved point).
+ (move-to-window-line 0)
+ (let ((case-fold-search nil))
+ ;; Search for blank line and then for From:
+ (mh-when (not (and (search-forward "\n\n" nil t)
+ (search-forward "From:" nil t)))
+ (other-window -1)
+ (error "No more messages")))
+ ;; Go back to previous blank line, then forward to the first non-blank.
+ (search-backward "\n\n" nil t)
+ (forward-line 2)
+ (mh-recenter 0)
+ (other-window -1)))
+
+
+(defun mh-page-digest-backwards ()
+ "Back up displayed message to previous digested message."
+ (interactive)
+ (save-excursion
+ (mh-show-message-in-other-window)
+ ;; Go to top of screen (in case user moved point).
+ (move-to-window-line 0)
+ (let ((case-fold-search nil))
+ (beginning-of-line)
+ (mh-when (not (and (search-backward "\n\n" nil t)
+ (search-backward "From:" nil t)))
+ (other-window -1)
+ (error "No more messages")))
+ ;; Go back to previous blank line, then forward to the first non-blank.
+ (search-backward "\n\n" nil t)
+ (forward-line 2)
+ (mh-recenter 0)
+ (other-window -1)))
+
+
+(defun mh-page-msg (&optional arg)
+ "Page the displayed message forwards.
+Scrolls ARG lines or a full screen if no argument is supplied."
+ (interactive "P")
+ (scroll-other-window arg))
+
+
+(defun mh-previous-page (&optional arg)
+ "Page the displayed message backwards.
+Scrolls ARG lines or a full screen if no argument is supplied."
+ (interactive "P")
+ (save-excursion
+ (mh-show-message-in-other-window)
+ (unwind-protect
+ (scroll-down arg)
+ (other-window -1))))
+
+
+(defun mh-previous-undeleted-msg (&optional arg)
+ "Move to previous undeleted message in window."
+ (interactive "p")
+ (setq mh-next-direction 'backward)
+ (beginning-of-line)
+ (cond ((re-search-backward mh-good-msg-regexp nil 0 arg)
+ (mh-maybe-show))
+ (t
+ (if (get-buffer mh-show-buffer)
+ (delete-windows-on mh-show-buffer)))))
+
+
+(defun mh-print-msg (prefix-provided msg-or-seq)
+ "Print MESSAGE(s) (default: displayed message) on a line printer.
+If optional prefix argument provided, then prompt for the message sequence."
+ (interactive (list current-prefix-arg
+ (if current-prefix-arg
+ (reverse (mh-seq-to-msgs
+ (mh-read-seq-default "Print" t)))
+ (mh-get-msg-num t))))
+ (if prefix-provided
+ (message "Printing sequence...")
+ (message "Printing message..."))
+ (let ((print-command
+ (if prefix-provided
+ (format "(scan -clear %s ; %s -nobell -clear %s %s) | %s"
+ (mapconcat (function (lambda (msg) msg)) msg-or-seq " ")
+ (expand-file-name "mhl" mh-lib)
+ (if (stringp mhl-formfile)
+ (format "-form %s" mhl-formfile)
+ "")
+ (mh-msg-filenames msg-or-seq)
+ (format mh-lpr-command-format
+ (if prefix-provided
+ (format "Sequence from %s" mh-current-folder)
+ (format "%s/%d" mh-current-folder
+ msg-or-seq))))
+ (format "%s -nobell -clear %s %s | %s"
+ (expand-file-name "mhl" mh-lib)
+ (mh-msg-filename msg-or-seq)
+ (if (stringp mhl-formfile)
+ (format "-form %s" mhl-formfile)
+ "")
+ (format mh-lpr-command-format
+ (if prefix-provided
+ (format "Sequence from %s" mh-current-folder)
+ (format "%s/%d" mh-current-folder
+ msg-or-seq)))))))
+ (if mh-print-background
+ (mh-exec-cmd-daemon shell-file-name "-c" print-command)
+ (call-process shell-file-name nil nil nil "-c" print-command))
+ (if prefix-provided
+ (mh-notate-seq msg-or-seq ?P mh-cmd-note)
+ (mh-notate msg-or-seq ?P mh-cmd-note))
+ (mh-add-msgs-to-seq msg-or-seq 'printed t)
+ (if prefix-provided
+ (message "Printing sequence...done")
+ (message "Printing message...done"))))
+
+
+(defun mh-put-msg-in-seq (prefix-provided from to)
+ "Add MESSAGE(s) (default: displayed message) to SEQUENCE.
+If optional prefix argument provided, then prompt for the message sequence."
+ (interactive (list current-prefix-arg
+ (if current-prefix-arg
+ (mh-seq-to-msgs
+ (mh-read-seq-default "Add messages from" t))
+ (mh-get-msg-num t))
+ (mh-read-seq-default "Add to" nil)))
+ (setq mh-previous-seq to)
+ (mh-add-msgs-to-seq from to))
+
+
+(defun mh-rescan-folder (range)
+ "Rescan a folder after optionally processing the outstanding commands.
+If optional prefix argument is provided, prompt for the range of
+messages to display. Otherwise show the entire folder."
+ (interactive (list (if current-prefix-arg
+ (mh-read-msg-range "Range to scan [all]? ")
+ nil)))
+ (setq mh-next-direction 'forward)
+ (mh-scan-folder mh-current-folder (or range "all")))
+
+
+(defun mh-redistribute (to cc msg)
+ "Redistribute a letter.
+Depending on how your copy of MH was compiled, you may need to change the
+setting of the variable mh-redist-full-contents. See its documentation."
+ (interactive (list (read-string "Redist-To: ")
+ (read-string "Redist-Cc: ")
+ (mh-get-msg-num t)))
+ (save-window-excursion
+ (let ((folder mh-current-folder)
+ (draft (mh-read-draft "redistribution"
+ (if mh-redist-full-contents
+ (mh-msg-filename msg)
+ nil)
+ nil)))
+ (mh-goto-header-end 0)
+ (insert "Resent-To: " to "\n")
+ (if (not (equal cc "")) (insert "Resent-cc: " cc "\n"))
+ (mh-clean-msg-header (point-min)
+ "^Message-Id:\\|^Received:\\|^Return-Path:\\|^Sender:\\|^Date:\\|^From:"
+ nil)
+ (save-buffer)
+ (message "Redistributing...")
+ (if mh-redist-full-contents
+ (call-process "/bin/sh" nil 0 nil "-c"
+ (format "mhdist=1 mhaltmsg=%s %s -push %s"
+ (buffer-file-name)
+ (expand-file-name "send" mh-progs)
+ (buffer-file-name)))
+ (call-process "/bin/sh" nil 0 nil "-c"
+ (format "mhdist=1 mhaltmsg=%s mhannotate=1 %s -push %s"
+ (mh-msg-filename msg folder)
+ (expand-file-name "send" mh-progs)
+ (buffer-file-name))))
+ (mh-annotate-msg msg folder mh-note-dist
+ "-component" "Resent:"
+ "-text" (format "\"%s %s\"" to cc))
+ (kill-buffer draft)
+ (message "Redistributing...done"))))
+
+
+(defun mh-write-msg-to-file (msg file)
+ "Append MESSAGE to the end of a FILE."
+ (interactive
+ (list (mh-get-msg-num t)
+ (let ((default-dir (if (eq 'write (car mh-last-destination))
+ (file-name-directory (cdr mh-last-destination))
+ default-directory)))
+ (read-file-name "Save message in file: " default-dir
+ (expand-file-name "mail.out" default-dir)))))
+ (let ((file-name (mh-msg-filename msg))
+ (output-file (mh-expand-file-name file)))
+ (setq mh-last-destination (cons 'write file))
+ (save-excursion
+ (set-buffer (get-buffer-create " *mh-temp*"))
+ (erase-buffer)
+ (insert-file-contents file-name)
+ (append-to-file (point-min) (point-max) output-file))))
+
+
+(defun mh-search-folder (folder)
+ "Search FOLDER for messages matching a pattern."
+ (interactive (list (mh-prompt-for-folder "Search"
+ mh-current-folder
+ t)))
+ (switch-to-buffer-other-window "pick-pattern")
+ (if (or (zerop (buffer-size))
+ (not (y-or-n-p "Reuse pattern? ")))
+ (mh-make-pick-template)
+ (message ""))
+ (setq mh-searching-folder folder))
+
+
+(defun mh-send (to cc subject)
+ "Compose and send a letter."
+ (interactive "sTo: \nsCc: \nsSubject: ")
+ (let ((config (current-window-configuration)))
+ (delete-other-windows)
+ (mh-send-sub to cc subject config)))
+
+
+(defun mh-send-other-window (to cc subject)
+ "Compose and send a letter in another window.."
+ (interactive "sTo: \nsCc: \nsSubject: ")
+ (let ((pop-up-windows t))
+ (mh-send-sub to cc subject (current-window-configuration))))
+
+
+(defun mh-send-sub (to cc subject config)
+ "Do the real work of composing and sending a letter.
+Expects the TO, CC, and SUBJECT fields as arguments.
+CONFIG is the window configuration before sending mail."
+ (let ((folder mh-current-folder)
+ (msg-num (mh-get-msg-num nil)))
+ (message "Composing a message...")
+ (let ((draft (mh-read-draft
+ "message"
+ (if (file-exists-p
+ (expand-file-name "components" mh-user-path))
+ (expand-file-name "components" mh-user-path)
+ (if (file-exists-p
+ (expand-file-name "components" mh-lib))
+ (expand-file-name "components" mh-lib)
+ (error "Can't find components file")))
+ nil)))
+ (mh-insert-fields "To:" to "Subject:" subject "Cc:" cc)
+ (set-buffer-modified-p nil)
+ (goto-char (point-max))
+ (message "Composing a message...done")
+ (mh-compose-and-send-mail draft "" folder msg-num
+ to subject cc
+ nil nil config))))
+
+
+(defun mh-show (&optional msg)
+ "Show MESSAGE (default: displayed message).
+Forces a two-window display with the folder window on top (size
+mh-summary-height) and the show buffer below it."
+ (interactive)
+ (if (not msg)
+ (setq msg (mh-get-msg-num t)))
+ (setq mh-showing t)
+ (mh-set-mode-name "mh-e show")
+ (if (not (eql (next-window (minibuffer-window)) (selected-window)))
+ (delete-other-windows)) ; force ourself to the top window
+ (let ((folder mh-current-folder))
+ (mh-show-message-in-other-window)
+ (mh-display-msg msg folder))
+ (other-window -1)
+ (shrink-window (- (window-height) mh-summary-height))
+ (mh-recenter nil)
+ (if (not (memq msg mh-seen-list)) (mh-push msg mh-seen-list)))
+
+
+(defun mh-sort-folder ()
+ "Sort the messages in the current folder by date."
+ (interactive "")
+ (mh-process-or-undo-commands mh-current-folder)
+ (setq mh-next-direction 'forward)
+ (mh-set-folder-modified-p t) ; lock folder while sorting
+ (message "Sorting folder...")
+ (mh-exec-cmd "sortm" mh-current-folder)
+ (message "Sorting folder...done")
+ (mh-scan-folder mh-current-folder "all"))
+
+
+(defun mh-toggle-showing ()
+ "Toggle the scanning mode/showing mode of displaying messages."
+ (interactive)
+ (if mh-showing
+ (mh-set-scan-mode)
+ (mh-show)))
+
+
+(defun mh-undo (prefix-provided msg-or-seq)
+ "Undo the deletion or refile of the specified MESSAGE(s).
+Default is the displayed message. If optional prefix argument is
+provided, then prompt for the message sequence."
+ (interactive (list current-prefix-arg
+ (if current-prefix-arg
+ (mh-read-seq-default "Undo" t)
+ (mh-get-msg-num t))))
+
+ (cond (prefix-provided
+ (mh-mapc (function mh-undo-msg) (mh-seq-to-msgs msg-or-seq)))
+ ((or (looking-at mh-deleted-msg-regexp)
+ (looking-at mh-refiled-msg-regexp))
+ (mh-undo-msg (mh-get-msg-num t)))
+ (t
+ (error "Nothing to undo")))
+ ;; update the mh-refile-list so mh-outstanding-commands-p will work
+ (mh-mapc (function
+ (lambda (elt)
+ (if (not (mh-seq-to-msgs elt))
+ (setq mh-refile-list (delq elt mh-refile-list)))))
+ mh-refile-list)
+
+ (if (not (mh-outstanding-commands-p))
+ (mh-set-folder-modified-p nil)))
+
+
+(defun mh-undo-msg (msg)
+ ;; Undo the deletion or refile of one MESSAGE.
+ (cond ((memq msg mh-delete-list)
+ (setq mh-delete-list (delq msg mh-delete-list))
+ (mh-remove-msg-from-seq msg 'deleted t)
+ (mh-notate msg ? mh-cmd-note))
+ (t
+ (mh-mapc (function (lambda (dest)
+ (mh-remove-msg-from-seq msg dest t)))
+ mh-refile-list)
+ (mh-notate msg ? mh-cmd-note))))
+
+
+(defun mh-undo-folder (&rest ignore)
+ "Undo all commands in current folder."
+ (interactive "")
+ (cond ((or mh-do-not-confirm
+ (yes-or-no-p "Undo all commands in folder? "))
+ (setq mh-delete-list nil
+ mh-refile-list nil
+ mh-seq-list nil
+ mh-next-direction 'forward)
+ (with-mh-folder-updating (nil)
+ (mh-unmark-all-headers t)))
+ (t
+ (message "Commands not undone.")
+ (sit-for 2))))
+
+
+(defun mh-visit-folder (folder &optional range)
+ "Visit FOLDER and display RANGE of messages."
+ (interactive (list (mh-prompt-for-folder "Visit" "+inbox" t)
+ (mh-read-msg-range "Range [all]? ")))
+ (let ((config (current-window-configuration)))
+ (mh-scan-folder folder (or range "all"))
+ (setq mh-previous-window-config config)))
+
+
+(defun mh-widen ()
+ "Remove restrictions from the current folder, thereby showing all messages."
+ (interactive "")
+ (with-mh-folder-updating (t)
+ (delete-region (point-min) (point-max))
+ (widen)
+ (mh-make-folder-mode-line))
+ (setq mh-narrowed-to-seq nil))
+
+\f
+
+;;; Support routines.
+
+(defun mh-delete-a-msg (msg)
+ ;; Delete the MESSAGE.
+ (save-excursion
+ (mh-goto-msg msg nil t)
+ (if (looking-at mh-refiled-msg-regexp)
+ (error "Message %d is refiled. Undo refile before deleting." msg))
+ (if (looking-at mh-deleted-msg-regexp)
+ nil
+ (mh-set-folder-modified-p t)
+ (mh-push msg mh-delete-list)
+ (mh-add-msgs-to-seq msg 'deleted t)
+ (mh-notate msg ?D mh-cmd-note))))
+
+
+(defun mh-refile-a-msg (msg destination)
+ ;; Refile MESSAGE in FOLDER.
+ (save-excursion
+ (mh-goto-msg msg nil t)
+ (cond ((looking-at mh-deleted-msg-regexp)
+ (error "Message %d is deleted. Undo delete before moving." msg))
+ ((looking-at mh-refiled-msg-regexp)
+ (if (y-or-n-p
+ (format "Message %d already refiled. Copy to %s as well? "
+ msg destination))
+ (mh-exec-cmd "refile" (mh-get-msg-num t) "-link"
+ "-src" mh-current-folder
+ (symbol-name destination))
+ (message "Message not copied.")))
+ (t
+ (mh-set-folder-modified-p t)
+ (if (not (memq destination mh-refile-list))
+ (mh-push destination mh-refile-list))
+ (if (not (memq msg (mh-seq-to-msgs destination)))
+ (mh-add-msgs-to-seq msg destination t))
+ (mh-notate msg ?^ mh-cmd-note)))))
+
+
+(defun mh-display-msg (msg-num folder)
+ ;; Display message NUMBER of FOLDER.
+ (set-buffer folder)
+ ;; Bind variables in folder buffer in case they are local
+ (let ((formfile mhl-formfile)
+ (clean-message-header mh-clean-message-header)
+ (invisible-headers mh-invisible-headers)
+ (visible-headers mh-visible-headers)
+ (msg-filename (mh-msg-filename msg-num))
+ (show-buffer mh-show-buffer)
+ (folder mh-current-folder))
+ (if (not (file-exists-p msg-filename))
+ (error "Message %d does not exist" msg-num))
+ (switch-to-buffer show-buffer)
+ (if mh-bury-show-buffer (bury-buffer (current-buffer)))
+ (mh-when (not (equal msg-filename buffer-file-name))
+ ;; Buffer does not yet contain message.
+ (clear-visited-file-modtime)
+ (unlock-buffer)
+ (setq buffer-file-name nil) ; no locking during setup
+ (erase-buffer)
+ (if formfile
+ (if (stringp formfile)
+ (mh-exec-lib-cmd-output "mhl" "-nobell" "-noclear"
+ "-form" formfile msg-filename)
+ (mh-exec-lib-cmd-output "mhl" "-nobell" "-noclear"
+ msg-filename))
+ (insert-file-contents msg-filename))
+ (goto-char (point-min))
+ (cond (clean-message-header
+ (mh-clean-msg-header (point-min)
+ invisible-headers
+ visible-headers)
+ (goto-char (point-min)))
+ (t
+ (let ((case-fold-search t))
+ (re-search-forward
+ "^To:\\|^From:\\|^Subject:\\|^Date:" nil t)
+ (beginning-of-line)
+ (mh-recenter 0))))
+ (set-buffer-modified-p nil)
+ (setq buffer-file-name msg-filename)
+ (set-mark nil)
+ (setq mode-line-buffer-identification
+ (list (format mh-show-buffer-mode-line-buffer-id
+ folder msg-num))))))
+
+
+(defun mh-invalidate-show-buffer ()
+ ;; Invalidate the show buffer so we must update it to use it.
+ (if (get-buffer mh-show-buffer)
+ (save-excursion
+ (set-buffer mh-show-buffer)
+ (setq buffer-file-name nil))))
+
+
+(defun mh-show-message-in-other-window ()
+ (switch-to-buffer-other-window mh-show-buffer)
+ (if mh-bury-show-buffer (bury-buffer (current-buffer))))
+
+
+(defun mh-clean-msg-header (start invisible-headers visible-headers)
+ ;; Flush extraneous lines in a message header, from the given POINT to the
+ ;; end of the message header. If VISIBLE-HEADERS is non-nil, it contains a
+ ;; regular expression specifying the lines to display, otherwise
+ ;; INVISIBLE-HEADERS contains a regular expression specifying lines to
+ ;; delete from the header.
+ (let ((case-fold-search t))
+ (save-restriction
+ (goto-char start)
+ (if (search-forward "\n\n" nil t)
+ (backward-char 2))
+ (narrow-to-region start (point))
+ (goto-char (point-min))
+ (if visible-headers
+ (while (< (point) (point-max))
+ (beginning-of-line)
+ (cond ((looking-at visible-headers)
+ (forward-line 1)
+ (while (looking-at "^[ \t]+") (forward-line 1)))
+ (t
+ (mh-delete-line 1)
+ (while (looking-at "^[ \t]+")
+ (beginning-of-line)
+ (mh-delete-line 1)))))
+ (while (re-search-forward invisible-headers nil t)
+ (beginning-of-line)
+ (mh-delete-line 1)
+ (while (looking-at "^[ \t]+")
+ (beginning-of-line)
+ (mh-delete-line 1))))
+ (unlock-buffer))))
+
+
+(defun mh-delete-line (lines)
+ ;; Delete version of kill-line.
+ (delete-region (point) (save-excursion (forward-line lines) (point))))
+
+
+(defun mh-read-draft (use initial-contents delete-contents-file)
+ ;; Read draft file into a draft buffer and make that buffer the current one.
+ ;; USE is a message used for prompting about the intended use of the message.
+ ;; INITIAL-CONTENTS is filename that is read into an empty buffer, or NIL
+ ;; if buffer should not be modified. Delete the initial-contents file if
+ ;; DELETE-CONTENTS-FILE flag is set.
+ ;; Returns the draft folder's name.
+ ;; If the draft folder facility is enabled in ~/.mh_profile, a new buffer is
+ ;; used each time and saved in the draft folder. The draft file can then be
+ ;; reused.
+ (cond (mh-draft-folder
+ (let ((orig-default-dir default-directory))
+ (pop-to-buffer (find-file-noselect (mh-new-draft-name) t))
+ (rename-buffer (format "draft-%s" (buffer-name)))
+ (setq default-directory orig-default-dir)))
+ (t
+ (let ((draft-name (expand-file-name "draft" mh-user-path)))
+ (pop-to-buffer "draft") ; Create if necessary
+ (if (buffer-modified-p)
+ (if (y-or-n-p "Draft has been modified; kill anyway? ")
+ (set-buffer-modified-p nil)
+ (error "Draft preserved")))
+ (setq buffer-file-name draft-name)
+ (clear-visited-file-modtime)
+ (unlock-buffer)
+ (mh-when (and (file-exists-p draft-name)
+ (not (equal draft-name initial-contents)))
+ (insert-file-contents draft-name)
+ (delete-file draft-name)))))
+ (mh-when (and initial-contents
+ (or (zerop (buffer-size))
+ (not (y-or-n-p
+ (format "A draft exists. Use for %s? " use)))))
+ (erase-buffer)
+ (insert-file-contents initial-contents)
+ (if delete-contents-file (delete-file initial-contents)))
+ (auto-save-mode 1)
+ (if mh-draft-folder
+ (save-buffer)) ; Do not reuse draft name
+ (buffer-name))
+
+
+(defun mh-new-draft-name ()
+ ;; Returns the pathname of folder for draft messages.
+ (save-excursion
+ (set-buffer (get-buffer-create " *mh-temp*"))
+ (erase-buffer)
+ (mh-exec-cmd-output "mhpath" nil mh-draft-folder "new")
+ (buffer-substring (point) (1- (mark)))))
+
+
+(defun mh-next-msg ()
+ ;; Move backward or forward to the next undeleted message in the buffer.
+ (if (eq mh-next-direction 'forward)
+ (mh-next-undeleted-msg 1)
+ (mh-previous-undeleted-msg 1)))
+
+
+(defun mh-set-scan-mode ()
+ ;; Display the scan listing buffer, but do not show a message.
+ (if (get-buffer mh-show-buffer)
+ (delete-windows-on mh-show-buffer))
+ (mh-set-mode-name "mh-e scan")
+ (setq mh-showing nil)
+ (if mh-recenter-summary-p
+ (mh-recenter nil)))
+
+
+(defun mh-maybe-show (&optional msg)
+ ;; If in showing mode, then display the message pointed to by the cursor.
+ (if mh-showing (mh-show msg)))
+
+
+(defun mh-set-mode-name (mode-name-string)
+ ;; Set the mode-name and ensure that the mode line is updated.
+ (setq mode-name mode-name-string)
+ ;; Force redisplay of all buffers' mode lines to be considered.
+ (save-excursion (set-buffer (other-buffer)))
+ (set-buffer-modified-p (buffer-modified-p)))
+
+\f
+
+;;; The folder data abstraction.
+
+(defvar mh-current-folder nil "Name of current folder, a string.")
+(defvar mh-show-buffer nil "Buffer that displays mesage for this folder.")
+(defvar mh-folder-filename nil "Full path of directory for this folder.")
+(defvar mh-showing nil "If non-nil, show the message in a separate window.")
+(defvar mh-next-seq-num nil "Index of free sequence id.")
+(defvar mh-delete-list nil "List of msg numbers to delete.")
+(defvar mh-refile-list nil "List of folder names in mh-seq-list.")
+(defvar mh-seq-list nil "Alist of (seq . msgs) numbers.")
+(defvar mh-seen-list nil "List of displayed messages.")
+(defvar mh-next-direction 'forward "Direction to move to next message.")
+(defvar mh-narrowed-to-seq nil "Sequence display is narrowed to.")
+(defvar mh-first-msg-num nil "Number of first msg in buffer.")
+(defvar mh-last-msg-num nil "Number of last msg in buffer.")
+
+
+(defun mh-make-folder (name)
+ ;; Create and initialize a new mail folder called NAME and make it the
+ ;; current folder.
+ (switch-to-buffer name)
+ (setq buffer-read-only nil)
+ (erase-buffer)
+ (setq buffer-read-only t)
+ (mh-folder-mode)
+ (mh-set-folder-modified-p nil)
+ (setq buffer-file-name mh-folder-filename)
+ (mh-set-mode-name "mh-e scan"))
+
+
+;;; Don't use this mode when creating buffers if default-major-mode is nil.
+(put 'mh-folder-mode 'mode-class 'special)
+
+(defun mh-folder-mode ()
+ "Major mode for \"editing\" an MH folder scan listing.
+Messages can be marked for refiling and deletion. However, both actions
+are deferred until you request execution with \\[mh-execute-commands].
+\\{mh-folder-mode-map}
+ A prefix argument (\\[universal-argument]) to delete, refile, list, or undo
+applies the action to a message sequence.
+
+Variables controlling mh-e operation are (defaults in parentheses):
+
+ mh-bury-show-buffer (t)
+ Non-nil means that the buffer used to display message is buried.
+ It will never be offered as the default other buffer.
+
+ mh-clean-message-header (nil)
+ Non-nil means remove header lines matching the regular expression
+ specified in mh-invisible-headers from messages.
+
+ mh-visible-headers (nil)
+ If non-nil, it contains a regexp specifying the headers that are shown in
+ a message if mh-clean-message-header is non-nil. Setting this variable
+ overrides mh-invisible-headers.
+
+ mh-do-not-confirm (nil)
+ Non-nil means do not prompt for confirmation before executing some
+ non-recoverable commands such as mh-kill-folder and mh-undo-folder.
+
+ mhl-formfile (nil)
+ Name of format file to be used by mhl to show messages.
+ A value of T means use the default format file.
+ Nil means don't use mhl to format messages.
+
+ mh-lpr-command-format (\"lpr -p -J '%s'\")
+ Format for command used to print a message on a system printer.
+
+ mh-recenter-summary-p (nil)
+ If non-nil, then the scan listing is recentered when the window displaying
+ a messages is toggled off.
+
+ mh-summary-height (4)
+ Number of lines in the summary window.
+
+ mh-ins-buf-prefix (\">> \")
+ String to insert before each non-blank line of a message as it is
+ inserted in a draft letter.
+
+The value of mh-folder-mode-hook is called when a new folder is set up."
+
+ (kill-all-local-variables)
+ (use-local-map mh-folder-mode-map)
+ (setq major-mode 'mh-folder-mode)
+ (mh-set-mode-name "mh-e folder")
+ (make-local-vars
+ 'mh-current-folder (buffer-name) ; Name of folder, a string
+ 'mh-show-buffer (format "show-%s" (buffer-name)) ; Buffer that displays msgs
+ 'mh-folder-filename ; e.g. "/usr/foobar/Mail/inbox/"
+ (file-name-as-directory (mh-expand-file-name (buffer-name)))
+ 'mh-showing nil ; Show message also?
+ 'mh-next-seq-num 0 ; Index of free sequence id
+ 'mh-delete-list nil ; List of msgs nums to delete
+ 'mh-refile-list nil ; List of folder names in mh-seq-list
+ 'mh-seq-list nil ; Alist of (seq . msgs) nums
+ 'mh-seen-list nil ; List of displayed messages
+ 'mh-next-direction 'forward ; Direction to move to next message
+ 'mh-narrowed-to-seq nil ; Sequence display is narrowed to
+ 'mh-first-msg-num nil ; Number of first msg in buffer
+ 'mh-last-msg-num nil ; Number of last msg in buffer
+ 'mh-previous-window-config nil) ; Previous window configuration
+ (auto-save-mode -1)
+ (setq buffer-offer-save t)
+ (make-local-variable 'write-file-hooks)
+ (setq write-file-hooks '(mh-execute-commands))
+ (make-local-variable 'revert-buffer-function)
+ (setq revert-buffer-function 'mh-undo-folder)
+ (run-hooks 'mh-folder-mode-hook))
+
+
+(defun make-local-vars (&rest pairs)
+ ;; Take VARIABLE-VALUE pairs and makes local variables initialized to the
+ ;; value.
+ (while pairs
+ (make-variable-buffer-local (car pairs))
+ (set (car pairs) (car (cdr pairs)))
+ (setq pairs (cdr (cdr pairs)))))
+
+
+(defun mh-scan-folder (folder range)
+ ;; Scan the FOLDER over the RANGE. Return in the folder's buffer.
+ (cond ((null (get-buffer folder))
+ (mh-make-folder folder))
+ (t
+ (mh-process-or-undo-commands folder)
+ (switch-to-buffer folder)))
+ (mh-regenerate-headers range)
+ (mh-when (zerop (buffer-size))
+ (if (equal range "all")
+ (message "Folder %s is empty" folder)
+ (message "No messages in %s, range %s" folder range))
+ (sit-for 5))
+ (mh-goto-cur-msg))
+
+
+(defun mh-regenerate-headers (range)
+ ;; Replace buffer with scan of its contents over range RANGE.
+ (let ((folder mh-current-folder))
+ (message "Scanning %s..." folder)
+ (with-mh-folder-updating (nil)
+ (erase-buffer)
+ (mh-exec-cmd-output "scan" nil
+ "-noclear" "-noheader"
+ "-width" (window-width)
+ folder range)
+ (goto-char (point-min))
+ (cond ((looking-at "scan: no messages in")
+ (keep-lines mh-valid-scan-line)) ; Flush random scan lines
+ ((looking-at "scan: ")) ; Keep error messages
+ (t
+ (keep-lines mh-valid-scan-line))) ; Flush random scan lines
+ (mh-delete-seq-locally 'cur) ; To pick up new one
+ (setq mh-seq-list (mh-read-folder-sequences folder nil))
+ (mh-notate-user-sequences)
+ (mh-make-folder-mode-line (if (equal range "all")
+ nil
+ mh-partial-folder-mode-line-annotation)))
+ (message "Scanning %s...done" folder)))
+
+
+(defun mh-get-new-mail (maildrop-name)
+ ;; Read new mail from a maildrop into the current buffer.
+ ;; Return T if there was new mail, NIL otherwise. Return in the current
+ ;; buffer.
+ (let ((point-before-inc (point))
+ (folder mh-current-folder)
+ (return-value t))
+ (with-mh-folder-updating (t)
+ (message (if maildrop-name
+ (format "inc %s -file %s..." folder maildrop-name)
+ (format "inc %s..." folder)))
+ (mh-unmark-all-headers nil)
+ (setq mh-next-direction 'forward)
+ (goto-char (point-max))
+ (let ((start-of-inc (point)))
+ (if maildrop-name
+ (mh-exec-cmd-output "inc" nil folder
+ "-file" (expand-file-name maildrop-name)
+ "-width" (window-width)
+ "-truncate")
+ (mh-exec-cmd-output "inc" nil
+ "-width" (window-width)))
+ (message
+ (if maildrop-name
+ (format "inc %s -file %s...done" folder maildrop-name)
+ (format "inc %s...done" folder)))
+ (goto-char start-of-inc)
+ (cond ((looking-at "inc: no mail")
+ (keep-lines mh-valid-scan-line) ; Flush random scan lines
+ (goto-char point-before-inc)
+ (message "No new mail%s%s" (if maildrop-name " in " "")
+ (if maildrop-name maildrop-name "")))
+ ((re-search-forward "^inc:" nil t) ; Error messages
+ (error "inc error"))
+ (t
+ (mh-delete-seq-locally 'cur) ; To pick up new one
+ (setq mh-seq-list (mh-read-folder-sequences folder t))
+ (mh-notate-user-sequences)
+ (keep-lines mh-valid-scan-line)
+ (mh-make-folder-mode-line)
+ (mh-goto-cur-msg)
+ (setq return-value t))))
+ return-value)))
+
+
+(defun mh-make-folder-mode-line (&optional annotation)
+ ;; Set the fields of the mode line for a folder buffer.
+ ;; The optional ANNOTATION string is displayed after the folder's name.
+ (save-excursion
+ (mh-first-msg)
+ (setq mh-first-msg-num (mh-get-msg-num nil))
+ (mh-last-msg)
+ (setq mh-last-msg-num (mh-get-msg-num nil))
+ (let ((lines (count-lines (point-min) (point-max))))
+ (setq mode-line-buffer-identification
+ (list (format "{%%b%s} %d msg%s"
+ (if annotation (format "/%s" annotation) "")
+ lines
+ (if (zerop lines)
+ "s"
+ (if (> lines 1)
+ (format "s (%d-%d)" mh-first-msg-num
+ mh-last-msg-num)
+ (format " (%d)" mh-first-msg-num)))))))))
+
+
+(defun mh-unmark-all-headers (remove-all-flags)
+ ;; Remove all '+' flags from the headers, and if called with a non-nil
+ ;; argument, remove all 'D', '^' and '%' flags too.
+ ;; Optimized for speed (i.e., no regular expressions).
+ (save-excursion
+ (let ((case-fold-search nil)
+ (last-line (- (point-max) mh-cmd-note))
+ char)
+ (mh-first-msg)
+ (while (<= (point) last-line)
+ (forward-char mh-cmd-note)
+ (setq char (following-char))
+ (if (or (and remove-all-flags
+ (or (eql char ?D)
+ (eql char ?^)
+ (eql char ?%)))
+ (eql char ?+))
+ (progn
+ (delete-char 1)
+ (insert " ")))
+ (forward-line)))))
+
+
+(defun mh-goto-cur-msg ()
+ ;; Position the cursor at the current message.
+ (let ((cur-msg (car (mh-seq-to-msgs 'cur))))
+ (cond ((and cur-msg
+ (mh-goto-msg cur-msg t nil))
+ (mh-notate nil ?+ mh-cmd-note)
+ (mh-recenter 0)
+ (mh-maybe-show cur-msg))
+ (t
+ (mh-last-msg)
+ (message "No current message")))))
+
+
+(defun mh-pack-folder-1 (range)
+ ;; Close and pack the current folder.
+ (mh-process-or-undo-commands mh-current-folder)
+ (message "Packing folder...")
+ (mh-set-folder-modified-p t) ; lock folder while packing
+ (save-excursion
+ (mh-exec-cmd-quiet " *mh-temp*" "folder" mh-current-folder "-pack"))
+ (mh-regenerate-headers range))
+
+
+(defun mh-process-or-undo-commands (folder)
+ ;; If FOLDER has outstanding commands, then either process or discard them.
+ (set-buffer folder)
+ (if (mh-outstanding-commands-p)
+ (if (or mh-do-not-confirm
+ (y-or-n-p
+ "Process outstanding deletes and refiles (or lose them)? "))
+ (mh-process-commands folder)
+ (mh-undo-folder))
+ (mh-invalidate-show-buffer)))
+
+
+(defun mh-process-commands (folder)
+ ;; Process outstanding commands for the folder FOLDER.
+ (message "Processing deletes and refiles for %s..." folder)
+ (set-buffer folder)
+ (with-mh-folder-updating (nil)
+ ;; Update the unseen sequence if it exists
+ (if (and mh-seen-list (mh-seq-to-msgs mh-unseen-seq))
+ (mh-undefine-sequence mh-unseen-seq mh-seen-list))
+
+ ;; Then refile messages
+ (mh-mapc
+ (function
+ (lambda (dest)
+ (let ((msgs (mh-seq-to-msgs dest)))
+ (mh-when msgs
+ (apply 'mh-exec-cmd "refile"
+ "-src" folder (symbol-name dest) msgs)
+ (mh-delete-scan-msgs msgs)))))
+ mh-refile-list)
+
+ ;; Now delete messages
+ (mh-when mh-delete-list
+ (apply 'mh-exec-cmd "rmm" folder mh-delete-list)
+ (mh-delete-scan-msgs mh-delete-list))
+
+ ;; Don't need to remove sequences since delete and refile do so.
+
+ ;; Mark cur message
+ (if (> (buffer-size) 0)
+ (mh-define-sequence 'cur (list (or (mh-get-msg-num nil) "last"))))
+
+ (mh-invalidate-show-buffer)
+
+ (setq mh-delete-list nil
+ mh-refile-list nil
+ mh-seq-list (mh-read-folder-sequences mh-current-folder nil)
+ mh-seen-list nil)
+ (mh-unmark-all-headers t)
+ (mh-notate-user-sequences)
+ (message "Processing deletes and refiles for %s...done" folder)))
+
+
+(defun mh-delete-scan-msgs (msgs)
+ ;; Delete the scan listing lines for each of the msgs in the LIST.
+ ;; Optimized for speed (i.e., no regular expressions).
+ (setq msgs (sort msgs (function <))) ;okay to clobber msgs
+ (save-excursion
+ (mh-first-msg)
+ (while (and msgs (< (point) (point-max)))
+ (cond ((= (mh-get-msg-num nil) (car msgs))
+ (delete-region (point) (save-excursion (forward-line) (point)))
+ (setq msgs (cdr msgs)))
+ (t
+ (forward-line))))))
+
+
+(defun mh-set-folder-modified-p (flag)
+ "Mark current folder as modified or unmodified according to FLAG."
+ (set-buffer-modified-p flag))
+
+
+(defun mh-outstanding-commands-p ()
+ ;; Returns non-nil if there are outstanding deletes or refiles.
+ (or mh-delete-list mh-refile-list))
+
+\f
+
+;;; Mode for composing and sending a draft message.
+
+(defvar mh-sent-from-folder nil
+ "Folder of msg associated with this letter.")
+
+(defvar mh-sent-from-msg nil
+ "Number of msg associated with this letter.")
+
+(defvar mh-send-args nil
+ "Extra arguments to pass to \"send\" command.")
+
+(defvar mh-annotate-char nil
+ "Character to use to annotate mh-sent-from-msg.")
+
+(defvar mh-annotate-field nil
+ "Field name for message annotation.")
+
+(defun mh-letter-mode ()
+ "Mode for composing letters in mh-e.
+When you have finished composing, type \\[mh-send-letter] to send the letter.
+
+Variables controlling this mode (defaults in parentheses):
+
+ mh-delete-yanked-msg-window (nil)
+ If non-nil, \\[mh-yank-cur-msg] will delete any windows displaying
+ the yanked message.
+
+ mh-yank-from-start-of-msg (t)
+ If non-nil, \\[mh-yank-cur-msg] will include the entire message.
+ If `body', just yank the body (no header).
+ If nil, only the portion of the message following the point will be yanked.
+ If there is a region, this variable is ignored.
+
+Upon invoking mh-letter-mode, text-mode-hook and mh-letter-mode-hook are
+invoked with no args, if those values are non-nil.
+
+\\{mh-letter-mode-map}"
+ (interactive)
+ (kill-all-local-variables)
+ (make-local-variable 'paragraph-start)
+ (setq paragraph-start (concat "^[ \t]*[-_][-_][-_]+$\\|" paragraph-start))
+ (make-local-variable 'paragraph-separate)
+ (setq paragraph-separate
+ (concat "^[ \t]*[-_][-_][-_]+$\\|" paragraph-separate))
+ (make-local-variable 'mh-send-args)
+ (make-local-variable 'mh-annotate-char)
+ (make-local-variable 'mh-annotate-field)
+ (make-local-variable 'mh-previous-window-config)
+ (make-local-variable 'mh-sent-from-folder)
+ (make-local-variable 'mh-sent-from-msg)
+ (use-local-map mh-letter-mode-map)
+ (setq major-mode 'mh-letter-mode)
+ (mh-set-mode-name "mh-e letter")
+ (set-syntax-table mh-letter-mode-syntax-table)
+ (run-hooks 'text-mode-hook 'mh-letter-mode-hook)
+ (mh-when auto-fill-function
+ (make-local-variable 'auto-fill-function)
+ (setq auto-fill-function 'mh-auto-fill-for-letter)))
+
+
+(defun mh-auto-fill-for-letter ()
+ ;; Auto-fill in letters treats the header specially by inserting a tab
+ ;; before continuation line.
+ (do-auto-fill)
+ (if (mh-in-header-p)
+ (save-excursion
+ (beginning-of-line nil)
+ (insert-char ?\t 1))))
+
+
+(defun mh-in-header-p ()
+ ;; Return non-nil if the point is in the header of a draft message.
+ (save-excursion
+ (let ((cur-point (point)))
+ (goto-char (point-min))
+ (re-search-forward "^--------" nil t)
+ (< cur-point (point)))))
+
+
+(defun mh-to-field ()
+ "Move point to the end of a specified header field.
+The field is indicated by the previous keystroke. Create the field if
+it does not exist. Set the mark to point before moving."
+ (interactive "")
+ (expand-abbrev)
+ (let ((target (cdr (assoc (logior last-input-char ?`) mh-to-field-choices)))
+ (case-fold-search t))
+ (cond ((mh-position-on-field target t)
+ (let ((eol (point)))
+ (skip-chars-backward " \t")
+ (delete-region (point) eol))
+ (if (save-excursion
+ (backward-char 1)
+ (not (looking-at "[:,]")))
+ (insert ", ")
+ (insert " ")))
+ (t
+ (goto-char (point-min))
+ (re-search-forward "^To:")
+ (forward-line 1)
+ (while (looking-at "^[ \t]") (forward-line 1))
+ (insert (format "%s \n" target))
+ (backward-char 1)))))
+
+
+(defun mh-to-fcc ()
+ "Insert an Fcc: field in the current message.
+Prompt for the field name with a completion list of the current folders."
+ (interactive)
+ (let ((last-input-char ?\C-f)
+ (folder (mh-prompt-for-folder "Fcc" "" t)))
+ (expand-abbrev)
+ (save-excursion
+ (mh-to-field)
+ (insert (substring folder 1 nil)))))
+
+
+(defun mh-insert-signature ()
+ "Insert the file ~/.signature at the current point."
+ (interactive "")
+ (insert-file-contents mh-signature-file-name)
+ (set-buffer-modified-p (buffer-modified-p))) ; force mode line update
+
+
+(defun mh-check-whom ()
+ "Verify recipients of the current letter."
+ (interactive)
+ (let ((file-name (buffer-file-name)))
+ (set-buffer-modified-p t) ; Force writing of contents
+ (save-buffer)
+ (message "Checking recipients...")
+ (switch-to-buffer-other-window "*Mail Recipients*")
+ (bury-buffer (current-buffer))
+ (erase-buffer)
+ (mh-exec-cmd-output "whom" t file-name)
+ (other-window -1)
+ (message "Checking recipients...done")))
+
+\f
+
+;;; Routines to make a search pattern and search for a message.
+
+(defvar mh-searching-folder nil "Folder this pick is searching.")
+
+
+(defun mh-make-pick-template ()
+ ;; Initialize the current buffer with a template for a pick pattern.
+ (erase-buffer)
+ (kill-all-local-variables)
+ (make-local-variable 'mh-searching-folder)
+ (insert "From: \n"
+ "To: \n"
+ "Cc: \n"
+ "Date: \n"
+ "Subject: \n"
+ "---------\n")
+ (mh-letter-mode)
+ (use-local-map mh-pick-mode-map)
+ (goto-char (point-min))
+ (end-of-line))
+
+
+(defun mh-do-pick-search ()
+ "Find messages that match the qualifications in the current pattern buffer.
+Messages are searched for in the folder named in mh-searching-folder.
+Put messages found in a sequence named `search'."
+ (interactive)
+ (let ((pattern-buffer (buffer-name))
+ (searching-buffer mh-searching-folder)
+ (range)
+ (pattern nil)
+ (new-buffer nil))
+ (save-excursion
+ (cond ((get-buffer searching-buffer)
+ (set-buffer searching-buffer)
+ (setq range (format "%d-%d" mh-first-msg-num mh-last-msg-num)))
+ (t
+ (mh-make-folder searching-buffer)
+ (setq range "all")
+ (setq new-buffer t))))
+ (message "Searching...")
+ (goto-char (point-min))
+ (while (setq pattern (mh-next-pick-field pattern-buffer))
+ (setq msgs (mh-seq-from-command searching-buffer
+ 'search
+ (nconc (cons "pick" pattern)
+ (list searching-buffer
+ range
+ "-sequence" "search"
+ "-list"))))
+ (setq range "search"))
+ (message "Searching...done")
+ (if new-buffer
+ (mh-scan-folder searching-buffer msgs)
+ (switch-to-buffer searching-buffer))
+ (delete-other-windows)
+ (mh-notate-seq 'search ?% (1+ mh-cmd-note))))
+
+
+(defun mh-next-pick-field (buffer)
+ ;; Return the next piece of a pick argument that can be extracted from the
+ ;; BUFFER. Returns nil if no pieces remain.
+ (set-buffer buffer)
+ (let ((case-fold-search t))
+ (cond ((eobp)
+ nil)
+ ((re-search-forward "^\\([a-z].*\\):[ \t]*\\([a-z0-9].*\\)$" nil t)
+ (let* ((component
+ (format "--%s"
+ (downcase (buffer-substring (match-beginning 1)
+ (match-end 1)))))
+ (pat (buffer-substring (match-beginning 2) (match-end 2))))
+ (forward-line 1)
+ (list component pat)))
+ ((re-search-forward "^-*$" nil t)
+ (forward-char 1)
+ (let ((body (buffer-substring (point) (point-max))))
+ (if (and (> (length body) 0) (not (equal body "\n")))
+ (list "-search" body)
+ nil)))
+ (t
+ nil))))
+
+\f
+
+;;; Routines to compose and send a letter.
+
+(defun mh-compose-and-send-mail (draft send-args
+ sent-from-folder sent-from-msg
+ to subject cc
+ annotate-char annotate-field
+ config)
+ ;; Edit and compose a draft message in buffer DRAFT and send or save it.
+ ;; SENT-FROM-FOLDER is buffer containing scan listing of current folder, or
+ ;; nil if none exists.
+ ;; SENT-FROM-MSG is the message number or sequence name or nil.
+ ;; SEND-ARGS is an optional argument passed to the send command.
+ ;; The TO, SUBJECT, and CC fields are passed to the
+ ;; mh-compose-letter-function.
+ ;; If ANNOTATE-CHAR is non-null, it is used to notate the scan listing of the
+ ;; message. In that case, the ANNOTATE-FIELD is used to build a string
+ ;; for mh-annotate-msg.
+ ;; CONFIG is the window configuration to restore after sending the letter.
+ (pop-to-buffer draft)
+ (mh-letter-mode)
+ (setq mh-sent-from-folder sent-from-folder)
+ (setq mh-sent-from-msg sent-from-msg)
+ (setq mh-send-args send-args)
+ (setq mh-annotate-char annotate-char)
+ (setq mh-annotate-field annotate-field)
+ (setq mh-previous-window-config config)
+ (setq mode-line-buffer-identification (list "{%b}"))
+ (if (and (boundp 'mh-compose-letter-function)
+ (symbol-value 'mh-compose-letter-function))
+ ;; run-hooks will not pass arguments.
+ (let ((value (symbol-value 'mh-compose-letter-function)))
+ (if (and (listp value) (not (eq (car value) 'lambda)))
+ (while value
+ (funcall (car value) to subject cc)
+ (setq value (cdr value)))
+ (funcall mh-compose-letter-function to subject cc)))))
+
+
+(defun mh-send-letter (&optional arg)
+ "Send the draft letter in the current buffer.
+If optional prefix argument is provided, monitor delivery.
+Run mh-before-send-letter-hook before doing anything."
+ (interactive "P")
+ (run-hooks 'mh-before-send-letter-hook)
+ (set-buffer-modified-p t) ; Make sure buffer is written
+ (save-buffer)
+ (message "Sending...")
+ (let ((draft-buffer (current-buffer))
+ (file-name (buffer-file-name))
+ (config mh-previous-window-config))
+ (cond (arg
+ (pop-to-buffer "MH mail delivery")
+ (erase-buffer)
+ (if mh-send-args
+ (mh-exec-cmd-output "send" t "-watch" "-nopush"
+ "-nodraftfolder" mh-send-args file-name)
+ (mh-exec-cmd-output "send" t "-watch" "-nopush"
+ "-nodraftfolder" file-name))
+ (goto-char (point-max))
+ (recenter -1)
+ (set-buffer draft-buffer)) ; for annotation below
+ (mh-send-args
+ (mh-exec-cmd-daemon "send" "-nodraftfolder" "-noverbose"
+ mh-send-args file-name))
+ (t
+ (mh-exec-cmd-daemon "send" "-nodraftfolder" "-noverbose"
+ file-name)))
+
+ (if mh-annotate-char
+ (mh-annotate-msg mh-sent-from-msg
+ mh-sent-from-folder
+ mh-annotate-char
+ "-component" mh-annotate-field
+ "-text" (format "\"%s %s\""
+ (mh-get-field "To:")
+ (mh-get-field "Cc:"))))
+
+ (mh-when (or (not arg)
+ (y-or-n-p "Kill draft buffer? "))
+ (kill-buffer draft-buffer)
+ (if config
+ (set-window-configuration config)))
+ (message "Sending...done")))
+
+
+(defun mh-insert-letter (prefix-provided folder msg)
+ "Insert a message from any folder into the current letter.
+Removes the message's headers using mh-invisible-headers.
+Prefixes each non-blank line with mh-ins-buf-prefix (default \">> \").
+If optional prefix argument provided, do not indent and do not delete
+headers. Leaves the mark before the letter and point after it."
+ (interactive
+ (list current-prefix-arg
+ (mh-prompt-for-folder "Message from" mh-sent-from-folder nil)
+ (read-input (format "Message number%s: "
+ (if mh-sent-from-msg
+ (format " [%d]" mh-sent-from-msg)
+ "")))))
+ (save-restriction
+ (narrow-to-region (point) (point))
+ (let ((start (point-min)))
+ (if (equal msg "") (setq msg (int-to-string mh-sent-from-msg)))
+ (mh-exec-lib-cmd-output "mhl" "-nobell" "-noclear"
+ (expand-file-name msg
+ (mh-expand-file-name folder)))
+ (mh-when (not prefix-provided)
+ (mh-clean-msg-header start mh-invisible-headers mh-visible-headers)
+ (set-mark start) ; since mh-clean-msg-header moves it
+ (mh-insert-prefix-string mh-ins-buf-prefix)))))
+
+
+(defun mh-yank-cur-msg ()
+ "Insert the current message into the draft buffer.
+Prefix each non-blank line in the message with the string in
+`mh-ins-buf-prefix'. If a region is set in the message's buffer, then
+only the region will be inserted. Otherwise, the entire message will
+be inserted if `mh-yank-from-start-of-msg' is non-nil. If this variable
+is nil, the portion of the message following the point will be yanked.
+If `mh-delete-yanked-msg-window' is non-nil, any window displaying the
+yanked message will be deleted."
+ (interactive)
+ (if (and mh-sent-from-folder mh-sent-from-msg)
+ (let ((to-point (point))
+ (to-buffer (current-buffer)))
+ (set-buffer mh-sent-from-folder)
+ (if mh-delete-yanked-msg-window
+ (delete-windows-on mh-show-buffer))
+ (set-buffer mh-show-buffer) ; Find displayed message
+ (let ((mh-ins-str (cond ((mark)
+ (buffer-substring (point) (mark)))
+ ((eq 'body mh-yank-from-start-of-msg)
+ (buffer-substring
+ (save-excursion
+ (goto-char (point-min))
+ (mh-goto-header-end 1)
+ (point))
+ (point-max)))
+ (mh-yank-from-start-of-msg
+ (buffer-substring (point-min) (point-max)))
+ (t
+ (buffer-substring (point) (point-max))))))
+ (set-buffer to-buffer)
+ (narrow-to-region to-point to-point)
+ (push-mark)
+ (insert mh-ins-str)
+ (mh-insert-prefix-string mh-ins-buf-prefix)
+ (insert "\n")
+ (widen)))
+ (error "There is no current message")))
+
+
+(defun mh-insert-prefix-string (mh-ins-string)
+ ;; Run MH-YANK-HOOK to insert a prefix string before each line in the buffer.
+ ;; Generality for supercite users.
+ (save-excursion
+ (set-mark (point-max))
+ (goto-char (point-min))
+ (run-hooks 'mh-yank-hooks)))
+
+
+(defun mh-fully-kill-draft ()
+ "Kill the draft message file and the draft message buffer.
+Use \\[kill-buffer] if you don't want to delete the draft message file."
+ (interactive "")
+ (if (y-or-n-p "Kill draft message? ")
+ (let ((config mh-previous-window-config))
+ (if (file-exists-p (buffer-file-name))
+ (delete-file (buffer-file-name)))
+ (set-buffer-modified-p nil)
+ (kill-buffer (buffer-name))
+ (message "")
+ (if config
+ (set-window-configuration config)))
+ (error "Message not killed")))
+
+
+(defun mh-recenter (arg)
+ ;; Like recenter but with two improvements: nil arg means recenter,
+ ;; and only does anything if the current buffer is in the selected
+ ;; window. (Commands like save-some-buffers can make this false.)
+ (if (eql (get-buffer-window (current-buffer))
+ (selected-window))
+ (recenter (if arg arg '(t)))))
+
+\f
+
+;;; Commands to manipulate sequences. Sequences are stored in an alist
+;;; of the form:
+;;; ((seq-name msgs ...) (seq-name msgs ...) ...)
+
+(defun mh-make-seq (name msgs) (cons name msgs))
+
+(defmacro mh-seq-name (pair) (list 'car pair))
+
+(defmacro mh-seq-msgs (pair) (list 'cdr pair))
+
+(defun mh-find-seq (name) (assoc name mh-seq-list))
+
+
+(defun mh-seq-to-msgs (seq)
+ "Return a list of the messages in SEQUENCE."
+ (mh-seq-msgs (mh-find-seq seq)))
+
+
+(defun mh-seq-containing-msg (msg)
+ ;; Return a list of the sequences containing MESSAGE.
+ (let ((l mh-seq-list)
+ (seqs ()))
+ (while l
+ (if (memq msg (mh-seq-msgs (car l)))
+ (mh-push (mh-seq-name (car l)) seqs))
+ (setq l (cdr l)))
+ seqs))
+
+
+(defun mh-msg-to-seq (msg)
+ ;; Given a MESSAGE number, return the first sequence in which it occurs.
+ (car (mh-seq-containing-msg msg)))
+
+
+(defun mh-read-seq-default (prompt not-empty)
+ ;; Read and return sequence name with default narrowed or previous sequence.
+ (mh-read-seq prompt not-empty (or mh-narrowed-to-seq mh-previous-seq)))
+
+
+(defun mh-read-seq (prompt not-empty &optional default)
+ ;; Read and return a sequence name. Prompt with PROMPT, raise an error
+ ;; if the sequence is empty and the NOT-EMPTY flag is non-nil, and supply
+ ;; an optional DEFAULT sequence.
+ ;; A reply of '%' defaults to the first sequence containing the current
+ ;; message.
+ (let* ((input (completing-read (format "%s %s %s" prompt "sequence:"
+ (if default
+ (format "[%s] " default)
+ ""))
+ (mh-seq-names mh-seq-list)))
+ (seq (cond ((equal input "%") (mh-msg-to-seq (mh-get-msg-num t)))
+ ((equal input "") default)
+ (t (intern input))))
+ (msgs (mh-seq-to-msgs seq)))
+ (if (and (null msgs) not-empty)
+ (error (format "No messages in sequence `%s'" seq)))
+ seq))
+
+
+(defun mh-read-folder-sequences (folder define-sequences)
+ ;; Read and return the predefined sequences for a FOLDER. If
+ ;; DEFINE-SEQUENCES is non-nil, then define mh-e's sequences before
+ ;; reading MH's sequences.
+ (let ((seqs ()))
+ (mh-when define-sequences
+ (mh-define-sequences mh-seq-list)
+ (mh-mapc (function (lambda (seq) ; Save the internal sequences
+ (if (mh-folder-name-p (mh-seq-name seq))
+ (mh-push seq seqs))))
+ mh-seq-list))
+ (save-excursion
+ (mh-exec-cmd-quiet " *mh-temp*" "mark" folder "-list")
+ (goto-char (point-min))
+ (while (re-search-forward "^[^:]+" nil t)
+ (mh-push (mh-make-seq (intern (buffer-substring (match-beginning 0)
+ (match-end 0)))
+ (mh-read-msg-list))
+ seqs))
+ (delete-region (point-min) (point))) ; avoid race with mh-process-daemon
+ seqs))
+
+
+(defun mh-seq-names (seq-list)
+ ;; Return an alist containing the names of the SEQUENCES.
+ (mapcar (function (lambda (entry) (list (symbol-name (mh-seq-name entry)))))
+ seq-list))
+
+
+(defun mh-seq-from-command (folder seq seq-command)
+ ;; In FOLDER, make a sequence named SEQ by executing COMMAND.
+ ;; COMMAND is a list. The first element is a program name
+ ;; and the subsequent elements are its arguments, all strings.
+ (let ((msg)
+ (msgs ())
+ (case-fold-search t))
+ (save-excursion
+ (save-window-excursion
+ (apply 'mh-exec-cmd-quiet " *mh-temp*" seq-command)
+ (goto-char (point-min))
+ (while (setq msg (car (mh-read-msg-list)))
+ (mh-push msg msgs)
+ (forward-line 1)))
+ (set-buffer folder)
+ (setq msgs (nreverse msgs)) ; Put in ascending order
+ (mh-push (mh-make-seq seq msgs) mh-seq-list)
+ msgs)))
+
+
+(defun mh-read-msg-list ()
+ ;; Return a list of message numbers from the current point to the end of
+ ;; the line.
+ (let ((msgs ())
+ (end-of-line (save-excursion (end-of-line) (point)))
+ num)
+ (while (re-search-forward "[0-9]+" end-of-line t)
+ (setq num (string-to-int (buffer-substring (match-beginning 0)
+ (match-end 0))))
+ (cond ((looking-at "-") ; Message range
+ (forward-char 1)
+ (re-search-forward "[0-9]+" end-of-line t)
+ (let ((num2 (string-to-int (buffer-substring (match-beginning 0)
+ (match-end 0)))))
+ (if (< num2 num)
+ (error "Bad message range: %d-%d" num num2))
+ (while (<= num num2)
+ (mh-push num msgs)
+ (setq num (1+ num)))))
+ ((not (zerop num)) (mh-push num msgs))))
+ msgs))
+
+
+(defun mh-remove-seq (seq)
+ ;; Delete the SEQUENCE.
+ (mh-map-to-seq-msgs 'mh-notate-if-in-one-seq seq ? (1+ mh-cmd-note) seq)
+ (mh-undefine-sequence seq (list "all"))
+ (mh-delete-seq-locally seq))
+
+
+(defun mh-delete-seq-locally (seq)
+ ;; Remove mh-e's record of SEQUENCE.
+ (let ((entry (mh-find-seq seq)))
+ (setq mh-seq-list (delq entry mh-seq-list))))
+
+
+(defun mh-remove-msg-from-seq (msg seq &optional internal-flag)
+ ;; Remove MESSAGE from the SEQUENCE. If optional FLAG is non-nil, do not
+ ;; inform MH of the change.
+ (let ((entry (mh-find-seq seq)))
+ (mh-when entry
+ (mh-notate-if-in-one-seq msg ? (1+ mh-cmd-note) (mh-seq-name entry))
+ (if (not internal-flag)
+ (mh-undefine-sequence seq (list msg)))
+ (setcdr entry (delq msg (mh-seq-msgs entry))))))
+
+
+(defun mh-add-msgs-to-seq (msgs seq &optional internal-flag)
+ ;; Add MESSAGE(s) to the SEQUENCE. If optional FLAG is non-nil, do not mark
+ ;; the message in the scan listing or inform MH of the addition.
+ (let ((entry (mh-find-seq seq)))
+ (if (and msgs (atom msgs)) (setq msgs (list msgs)))
+ (if (null entry)
+ (mh-push (mh-make-seq seq msgs) mh-seq-list)
+ (if msgs (setcdr entry (append msgs (cdr entry)))))
+ (mh-when (not internal-flag)
+ (mh-add-to-sequence seq msgs)
+ (mh-notate-seq seq ?% (1+ mh-cmd-note)))))
+
+
+(defun mh-rename-seq (seq new-name)
+ "Rename a SEQUENCE to have a new NAME."
+ (interactive "SOld sequence name: \nSNew name: ")
+ (let ((old-seq (mh-find-seq seq)))
+ (if old-seq
+ (rplaca old-seq new-name)
+ (error "Sequence %s does not exists" seq))
+ (mh-undefine-sequence seq (mh-seq-msgs old-seq))
+ (mh-define-sequence new-name (mh-seq-msgs old-seq))))
+
+
+(defun mh-notate-user-sequences ()
+ ;; Mark the scan listing of all messages in user-defined sequences.
+ (let ((seqs mh-seq-list)
+ name)
+ (while seqs
+ (setq name (mh-seq-name (car seqs)))
+ (if (not (mh-internal-seq name))
+ (mh-notate-seq name ?% (1+ mh-cmd-note)))
+ (setq seqs (cdr seqs)))))
+
+
+(defun mh-internal-seq (name)
+ ;; Return non-NIL if NAME is the name of an internal mh-e sequence.
+ (or (memq name '(answered cur deleted forwarded printed))
+ (eq name mh-unseen-seq)
+ (mh-folder-name-p name)))
+
+
+(defun mh-folder-name-p (name)
+ ;; Return non-NIL if NAME is possibly the name of a folder.
+ ;; A name can be a folder name if it begins with "+".
+ (if (symbolp name)
+ (eql (aref (symbol-name name) 0) ?+)
+ (eql (aref name 0) ?+)))
+
+
+(defun mh-notate-seq (seq notation offset)
+ ;; Mark the scan listing of all messages in the SEQUENCE with the CHARACTER
+ ;; at the given OFFSET from the beginning of the listing line.
+ (mh-map-to-seq-msgs 'mh-notate seq notation offset))
+
+
+(defun mh-notate-if-in-one-seq (msg notation offset seq)
+ ;; If the MESSAGE is in only the SEQUENCE, then mark the scan listing of the
+ ;; message with the CHARACTER at the given OFFSET from the beginning of the
+ ;; listing line.
+ (let ((in-seqs (mh-seq-containing-msg msg)))
+ (if (and (eq seq (car in-seqs)) (null (cdr in-seqs)))
+ (mh-notate msg notation offset))))
+
+
+(defun mh-map-to-seq-msgs (func seq &rest args)
+ ;; Invoke the FUNCTION at each message in the SEQUENCE, passing the
+ ;; remaining ARGS as arguments.
+ (save-excursion
+ (let ((msgs (mh-seq-to-msgs seq)))
+ (while msgs
+ (if (mh-goto-msg (car msgs) t t)
+ (apply func (car msgs) args))
+ (setq msgs (cdr msgs))))))
+
+
+(defun mh-map-over-seqs (func seq-list)
+ ;; Apply the FUNCTION to each element in the list of SEQUENCES,
+ ;; passing the sequence name and the list of messages as arguments.
+ (while seq-list
+ (funcall func (mh-seq-name (car seq-list)) (mh-seq-msgs (car seq-list)))
+ (setq seq-list (cdr seq-list))))
+
+
+(defun mh-define-sequences (seq-list)
+ ;; Define the sequences in SEQ-LIST.
+ (mh-map-over-seqs 'mh-define-sequence seq-list))
+
+
+(defun mh-add-to-sequence (seq msgs)
+ ;; Add to a SEQUENCE each message the list of MSGS.
+ (if (not (mh-folder-name-p seq))
+ (if msgs
+ (apply 'mh-exec-cmd "mark" mh-current-folder
+ "-sequence" (symbol-name seq)
+ "-add" msgs))))
+
+
+(defun mh-define-sequence (seq msgs)
+ ;; Define the SEQUENCE to contain the list of MSGS. Do not mark
+ ;; pseudo-sequences or empty sequences.
+ (if (and msgs
+ (not (mh-folder-name-p seq)))
+ (save-excursion
+ (apply 'mh-exec-cmd "mark" mh-current-folder
+ "-sequence" (symbol-name seq)
+ "-add" "-zero" (mh-list-to-string msgs)))))
+
+
+(defun mh-undefine-sequence (seq msgs)
+ ;; Remove from the SEQUENCE the list of MSGS.
+ (apply 'mh-exec-cmd "mark" mh-current-folder
+ "-sequence" (symbol-name seq)
+ "-delete" msgs))
+
+
+(defun mh-copy-seq-to-point (seq location)
+ ;; Copy the scan listing of the messages in SEQUENCE to after the point
+ ;; LOCATION in the current buffer.
+ (mh-map-to-seq-msgs 'mh-copy-line-to-point seq location))
+
+
+(defun mh-copy-line-to-point (msg location)
+ ;; Copy the current line to the LOCATION in the current buffer.
+ (beginning-of-line)
+ (let ((beginning-of-line (point)))
+ (forward-line 1)
+ (copy-region-as-kill beginning-of-line (point))
+ (goto-char location)
+ (yank)
+ (goto-char beginning-of-line)))
+
+\f
+
+;;; Issue commands to MH.
+
+(defun mh-exec-cmd (command &rest args)
+ ;; Execute MH command COMMAND with ARGS.
+ ;; Any output is assumed to be an error and is shown to the user.
+ (save-excursion
+ (set-buffer " *mh-temp*")
+ (erase-buffer)
+ (apply 'call-process
+ (expand-file-name command mh-progs) nil t nil
+ (mh-list-to-string args))
+ (if (> (buffer-size) 0)
+ (save-window-excursion
+ (switch-to-buffer-other-window " *mh-temp*")
+ (sit-for 5)))))
+
+
+(defun mh-exec-cmd-quiet (buffer command &rest args)
+ ;; In BUFFER, execute MH command COMMAND with ARGS.
+ ;; ARGS is a list of strings. Return in BUFFER, if one exists.
+ (mh-when (stringp buffer)
+ (set-buffer buffer)
+ (erase-buffer))
+ (apply 'call-process
+ (expand-file-name command mh-progs) nil buffer nil
+ args))
+
+
+(defun mh-exec-cmd-output (command display &rest args)
+ ;; Execute MH command COMMAND with DISPLAY flag and ARGS putting the output
+ ;; into buffer after point. Set mark after inserted text.
+ (push-mark (point) t)
+ (apply 'call-process
+ (expand-file-name command mh-progs) nil t display
+ (mh-list-to-string args))
+ (exchange-point-and-mark))
+
+
+(defun mh-exec-cmd-daemon (command &rest args)
+ ;; Execute MH command COMMAND with ARGS. Any output from command is
+ ;; displayed in an asynchronous pop-up window.
+ (save-excursion
+ (set-buffer (get-buffer-create " *mh-temp*"))
+ (erase-buffer))
+ (let ((process (apply 'start-process
+ command nil
+ (expand-file-name command mh-progs)
+ (mh-list-to-string args))))
+ (set-process-filter process 'mh-process-daemon)))
+
+
+(defun mh-process-daemon (process output)
+ ;; Process daemon that puts output into a temporary buffer.
+ (set-buffer (get-buffer-create " *mh-temp*"))
+ (insert-before-markers output)
+ (display-buffer " *mh-temp*"))
+
+
+(defun mh-exec-lib-cmd-output (command &rest args)
+ ;; Execute MH library command COMMAND with ARGS.
+ ;; Put the output into buffer after point. Set mark after inserted text.
+ (push-mark (point) t)
+ (apply 'call-process
+ (expand-file-name command mh-lib) nil t nil
+ (mh-list-to-string args))
+ (exchange-point-and-mark))
+
+
+(defun mh-list-to-string (l)
+ ;; Flattens the list L and makes every element of the new list into a string.
+ (let ((new-list nil))
+ (while l
+ (cond ((null (car l)))
+ ((symbolp (car l)) (mh-push (symbol-name (car l)) new-list))
+ ((numberp (car l)) (mh-push (int-to-string (car l)) new-list))
+ ((equal (car l) ""))
+ ((stringp (car l)) (mh-push (car l) new-list))
+ ((listp (car l))
+ (setq new-list (nconc (nreverse (mh-list-to-string (car l)))
+ new-list)))
+ (t (error "Bad element in mh-list-to-string: %s" (car l))))
+ (setq l (cdr l)))
+ (nreverse new-list)))
+
+\f
+
+;;; Commands to annotate a message.
+
+(defun mh-annotate-msg (msg buffer note &rest args)
+ ;; Mark the MESSAGE in BUFFER listing with the character NOTE and annotate
+ ;; the saved message with ARGS.
+ (apply 'mh-exec-cmd "anno" buffer msg args)
+ (save-excursion
+ (cond ((get-buffer buffer) ; Buffer may be deleted
+ (set-buffer buffer)
+ (if (symbolp msg)
+ (mh-notate-seq msg note (1+ mh-cmd-note))
+ (mh-notate msg note (1+ mh-cmd-note)))))))
+
+
+(defun mh-notate (msg notation offset)
+ ;; Marks MESSAGE with the character NOTATION at position OFFSET.
+ ;; Null MESSAGE means the message that the cursor points to.
+ (save-excursion
+ (if (or (null msg)
+ (mh-goto-msg msg t t))
+ (with-mh-folder-updating (t)
+ (beginning-of-line)
+ (forward-char offset)
+ (delete-char 1)
+ (insert notation)))))
+
+\f
+
+;;; User prompting commands.
+
+(defun mh-prompt-for-folder (prompt default can-create)
+ ;; Prompt for a folder name with PROMPT. Returns the folder's name.
+ ;; DEFAULT is used if the folder exists and the user types return.
+ ;; If the CAN-CREATE flag is t, then a non-existant folder is made.
+ (let* ((prompt (format "%s folder%s" prompt
+ (if (equal "" default)
+ "? "
+ (format " [%s]? " default))))
+ name)
+ (if (null mh-folder-list)
+ (setq mh-folder-list (mh-make-folder-list)))
+ (while (and (setq name (completing-read prompt mh-folder-list
+ nil nil "+"))
+ (equal name "")
+ (equal default "")))
+ (cond ((or (equal name "") (equal name "+"))
+ (setq name default))
+ ((not (mh-folder-name-p name))
+ (setq name (format "+%s" name))))
+ (let ((new-file-p (not (file-exists-p (mh-expand-file-name name)))))
+ (cond ((and new-file-p
+ (y-or-n-p
+ (format "Folder %s does not exist. Create it? " name)))
+ (message "Creating %s" name)
+ (call-process "mkdir" nil nil nil (mh-expand-file-name name))
+ (message "Creating %s...done" name)
+ (mh-push (list name) mh-folder-list)
+ (mh-push (list (substring name 1 nil)) mh-folder-list))
+ (new-file-p
+ (error "Folder %s is not created" name))
+ (t
+ (mh-when (null (assoc name mh-folder-list))
+ (mh-push (list name) mh-folder-list)
+ (mh-push (list (substring name 1 nil)) mh-folder-list)))))
+ name))
+
+
+(defun mh-make-folder-list ()
+ "Return a list of the user's folders.
+Result is in a form suitable for completing read."
+ (interactive)
+ (message "Collecting folder names...")
+ (save-window-excursion
+ (mh-exec-cmd-quiet " *mh-temp*" "folders" "-fast"
+ (if mh-recursive-folders
+ "-recurse"
+ "-norecurse"))
+ (goto-char (point-min))
+ (let ((list nil)
+ start)
+ (while (not (eobp))
+ (setq start (point))
+ (forward-line 1)
+ (mh-push (list (format "+%s" (buffer-substring start (1- (point)))))
+ list))
+ (message "Collecting folder names...done")
+ list)))
+
+
+(defun mh-remove-folder-from-folder-list (folder)
+ ;; Remove FOLDER from the list of folders.
+ (setq mh-folder-list
+ (delq (assoc folder mh-folder-list) mh-folder-list)))
+
+
+(defun mh-read-msg-range (prompt)
+ ;; Read a list of blank-separated items.
+ (let* ((buf (read-string prompt))
+ (buf-size (length buf))
+ (start 0)
+ (input ()))
+ (while (< start buf-size)
+ (let ((next (read-from-string buf start buf-size)))
+ (mh-push (car next) input)
+ (setq start (cdr next))))
+ (nreverse input)))
+
+\f
+
+;;; Misc. functions.
+
+(defun mh-get-msg-num (error-if-no-message)
+ ;; Return the message number of the displayed message. If the argument
+ ;; ERROR-IF-NO-MESSAGE is non-nil, then complain if the cursor is not
+ ;; pointing to a message.
+ (save-excursion
+ (beginning-of-line)
+ (cond ((looking-at mh-msg-number-regexp)
+ (string-to-int (buffer-substring (match-beginning 1)
+ (match-end 1))))
+ (error-if-no-message
+ (error "Cursor not pointing to message"))
+ (t nil))))
+
+
+(defun mh-msg-search-pat (n)
+ ;; Return a search pattern for message N in the scan listing.
+ (format mh-msg-search-regexp n))
+
+
+(defun mh-msg-filename (msg &optional folder)
+ ;; Return the file name of MESSAGE in FOLDER (default current folder).
+ (expand-file-name (int-to-string msg)
+ (if folder
+ (mh-expand-file-name folder)
+ mh-folder-filename)))
+
+
+(defun mh-msg-filenames (msgs &optional folder)
+ ;; Return a list of file names for MSGS in FOLDER (default current folder).
+ (mapconcat (function (lambda (msg) (mh-msg-filename msg folder))) msgs " "))
+
+
+(defun mh-expand-file-name (filename &optional default)
+ "Just like `expand-file-name', but also handles MH folder names.
+Assumes that any filename that starts with '+' is a folder name."
+ (if (mh-folder-name-p filename)
+ (expand-file-name (substring filename 1) mh-user-path)
+ (expand-file-name filename default)))
+
+
+(defun mh-find-path ()
+ ;; Set mh-user-path, mh-draft-folder, and mh-unseen-seq from profile file.
+ (save-excursion
+ ;; Be sure profile is fully expanded before switching buffers
+ (let ((profile (expand-file-name (or (getenv "MH") "~/.mh_profile"))))
+ (if (not (file-exists-p profile))
+ (error "Cannot find MH profile %s" profile))
+ (set-buffer (get-buffer-create " *mh-temp*"))
+ (erase-buffer)
+ (insert-file-contents profile)
+ (setq mh-draft-folder (mh-get-field "Draft-Folder:"))
+ (cond ((equal mh-draft-folder "")
+ (setq mh-draft-folder nil))
+ ((not (mh-folder-name-p mh-draft-folder))
+ (setq mh-draft-folder (format "+%s" mh-draft-folder))))
+ (setq mh-user-path (mh-get-field "Path:"))
+ (if (equal mh-user-path "")
+ (setq mh-user-path "Mail"))
+ (setq mh-user-path
+ (file-name-as-directory
+ (expand-file-name mh-user-path (expand-file-name "~"))))
+ (if (and mh-draft-folder
+ (not (file-exists-p (mh-expand-file-name mh-draft-folder))))
+ (error "Draft folder %s does not exist. Create it and try again."
+ mh-draft-folder))
+ (setq mh-unseen-seq (mh-get-field "Unseen-Sequence:"))
+ (if (equal mh-unseen-seq "")
+ (setq mh-unseen-seq 'unseen)
+ (setq mh-unseen-seq (intern mh-unseen-seq))))))
+
+
+(defun mh-get-field (field)
+ ;; Find and return the value of field FIELD in the current buffer.
+ ;; Returns the empty string if the field is not in the message.
+ (let ((case-fold-search t))
+ (goto-char (point-min))
+ (cond ((not (search-forward field nil t)) "")
+ ((looking-at "[\t ]*$") "")
+ (t
+ (re-search-forward "[\t ]*\\([^\t \n].*\\)$" nil t)
+ (let ((field (buffer-substring (match-beginning 1)
+ (match-end 1)))
+ (end-of-match (point)))
+ (forward-line)
+ (while (looking-at "[ \t]") (forward-line 1))
+ (backward-char 1)
+ (if (<= (point) end-of-match)
+ field
+ (format "%s%s"
+ field
+ (buffer-substring end-of-match (point)))))))))
+
+
+(defun mh-insert-fields (&rest name-values)
+ ;; Insert the NAME-VALUE pairs in the current buffer.
+ ;; Do not insert any pairs whose value is the empty string.
+ (let ((case-fold-search t))
+ (while name-values
+ (let ((field-name (car name-values))
+ (value (car (cdr name-values))))
+ (mh-when (not (equal value ""))
+ (goto-char (point-min))
+ (cond ((not (re-search-forward (format "^%s" field-name) nil t))
+ (mh-goto-header-end 0)
+ (insert field-name " " value "\n"))
+ (t
+ (end-of-line)
+ (insert " " value))))
+ (setq name-values (cdr (cdr name-values)))))))
+
+
+(defun mh-position-on-field (field set-mark)
+ ;; Set point to the end of the line beginning with FIELD.
+ ;; Set the mark to the old value of point, if SET-MARK is non-nil.
+ (let ((case-fold-search t))
+ (if set-mark (push-mark))
+ (goto-char (point-min))
+ (mh-goto-header-end 0)
+ (if (re-search-backward (format "^%s" field) nil t)
+ (progn (end-of-line) t)
+ nil)))
+
+
+(defun mh-goto-header-end (arg)
+ ;; Find the end of the message header in the current buffer and position
+ ;; the cursor at the ARG'th newline after the header.
+ (if (re-search-forward "^$\\|^-+$" nil nil)
+ (forward-line arg)))
+
+\f
+
+;;; Build the folder-mode keymap:
+
+(suppress-keymap mh-folder-mode-map)
+(define-key mh-folder-mode-map "q" 'mh-quit)
+(define-key mh-folder-mode-map "b" 'mh-quit)
+(define-key mh-folder-mode-map "?" 'mh-msg-is-in-seq)
+(define-key mh-folder-mode-map "%" 'mh-put-msg-in-seq)
+(define-key mh-folder-mode-map "|" 'mh-pipe-msg)
+(define-key mh-folder-mode-map "\ea" 'mh-edit-again)
+(define-key mh-folder-mode-map "\e%" 'mh-delete-msg-from-seq)
+(define-key mh-folder-mode-map "\C-xn" 'mh-narrow-to-seq)
+(define-key mh-folder-mode-map "\C-xw" 'mh-widen)
+(define-key mh-folder-mode-map "\eb" 'mh-burst-digest)
+(define-key mh-folder-mode-map "\eu" 'mh-undo-folder)
+(define-key mh-folder-mode-map "\e " 'mh-page-digest)
+(define-key mh-folder-mode-map "\e\177" 'mh-page-digest-backwards)
+(define-key mh-folder-mode-map "\ee" 'mh-extract-rejected-mail)
+(define-key mh-folder-mode-map "\ef" 'mh-visit-folder)
+(define-key mh-folder-mode-map "\ek" 'mh-kill-folder)
+(define-key mh-folder-mode-map "\el" 'mh-list-folders)
+(define-key mh-folder-mode-map "\eo" 'mh-write-msg-to-file)
+(define-key mh-folder-mode-map "\ep" 'mh-pack-folder)
+(define-key mh-folder-mode-map "\es" 'mh-search-folder)
+(define-key mh-folder-mode-map "\er" 'mh-rescan-folder)
+(define-key mh-folder-mode-map "l" 'mh-print-msg)
+(define-key mh-folder-mode-map "t" 'mh-toggle-showing)
+(define-key mh-folder-mode-map "c" 'mh-copy-msg)
+(define-key mh-folder-mode-map ">" 'mh-write-msg-to-file)
+(define-key mh-folder-mode-map "i" 'mh-inc-folder)
+(define-key mh-folder-mode-map "x" 'mh-execute-commands)
+(define-key mh-folder-mode-map "e" 'mh-execute-commands)
+(define-key mh-folder-mode-map "r" 'mh-redistribute)
+(define-key mh-folder-mode-map "f" 'mh-forward)
+(define-key mh-folder-mode-map "s" 'mh-send)
+(define-key mh-folder-mode-map "m" 'mh-send)
+(define-key mh-folder-mode-map "a" 'mh-reply)
+(define-key mh-folder-mode-map "j" 'mh-goto-msg)
+(define-key mh-folder-mode-map "g" 'mh-goto-msg)
+(define-key mh-folder-mode-map "\177" 'mh-previous-page)
+(define-key mh-folder-mode-map " " 'mh-page-msg)
+(define-key mh-folder-mode-map "." 'mh-show)
+(define-key mh-folder-mode-map "u" 'mh-undo)
+(define-key mh-folder-mode-map "!" 'mh-refile-or-write-again)
+(define-key mh-folder-mode-map "^" 'mh-refile-msg)
+(define-key mh-folder-mode-map "d" 'mh-delete-msg)
+(define-key mh-folder-mode-map "\C-d" 'mh-delete-msg-no-motion)
+(define-key mh-folder-mode-map "p" 'mh-previous-undeleted-msg)
+(define-key mh-folder-mode-map "n" 'mh-next-undeleted-msg)
+(define-key mh-folder-mode-map "o" 'mh-refile-msg)
+
+
+;;; Build the letter-mode keymap:
+
+(define-key mh-letter-mode-map "\C-c\C-f\C-b" 'mh-to-field)
+(define-key mh-letter-mode-map "\C-c\C-f\C-c" 'mh-to-field)
+(define-key mh-letter-mode-map "\C-c\C-f\C-f" 'mh-to-fcc)
+(define-key mh-letter-mode-map "\C-c\C-f\C-s" 'mh-to-field)
+(define-key mh-letter-mode-map "\C-c\C-f\C-t" 'mh-to-field)
+(define-key mh-letter-mode-map "\C-c\C-fb" 'mh-to-field)
+(define-key mh-letter-mode-map "\C-c\C-fc" 'mh-to-field)
+(define-key mh-letter-mode-map "\C-c\C-ff" 'mh-to-fcc)
+(define-key mh-letter-mode-map "\C-c\C-fs" 'mh-to-field)
+(define-key mh-letter-mode-map "\C-c\C-ft" 'mh-to-field)
+(define-key mh-letter-mode-map "\C-c\C-q" 'mh-fully-kill-draft)
+(define-key mh-letter-mode-map "\C-c\C-w" 'mh-check-whom)
+(define-key mh-letter-mode-map "\C-c\C-i" 'mh-insert-letter)
+(define-key mh-letter-mode-map "\C-c\C-y" 'mh-yank-cur-msg)
+(define-key mh-letter-mode-map "\C-c\C-s" 'mh-insert-signature)
+(define-key mh-letter-mode-map "\C-c\C-c" 'mh-send-letter)
+
+
+;;; Build the pick-mode keymap:
+
+(define-key mh-pick-mode-map "\C-c\C-c" 'mh-do-pick-search)
+(define-key mh-pick-mode-map "\C-c\C-f\C-b" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-f\C-c" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-f\C-f" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-f\C-s" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-f\C-t" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-fb" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-fc" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-ff" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-fs" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-ft" 'mh-to-field)
+(define-key mh-pick-mode-map "\C-c\C-w" 'mh-check-whom)
+
+\f
+
+;;; For Gnu Emacs.
+;;; Local Variables: ***
+;;; eval: (put 'mh-when 'lisp-indent-function 1) ***
+;;; eval: (put 'with-mh-folder-updating 'lisp-indent-function 1) ***
+;;; End: ***
+
+(provide 'mh-e)
+
+;;; mh-e.el ends here
HCoop / bpt / emacs.git / commitdiff