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emacs/lisp/mail/mh-e.el
Bill Wohler bdcfe844b8 Upgraded to MH-E version 7.0.
2002-11-29 18:15:21 +00:00

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;;; mh-e.el --- GNU Emacs interface to the MH mail system
;; Copyright (C) 1985,86,87,88,90,92,93,94,95,97,2000,2001,2002 Free Software Foundation, Inc.
;; Author: Bill Wohler <wohler@newt.com>
;; Maintainer: Bill Wohler <wohler@newt.com>
;; Version: 7.0
;; Keywords: mail
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; How to Use:
;; M-x mh-rmail to read mail. Type C-h m there for a list of commands.
;; C-u M-x mh-rmail to visit any folder.
;; M-x mh-smail to send mail. From within the mail reader, "m" works, too.
;; Your .emacs might benefit from these bindings:
;; (global-set-key "\C-cr" 'mh-rmail)
;; (global-set-key "\C-xm" 'mh-smail)
;; (global-set-key "\C-x4m" 'mh-smail-other-window)
;; MH (Message Handler) is a powerful mail reader.
;; The MH newsgroup is comp.mail.mh; the mailing list is mh-users@ics.uci.edu
;; (send to mh-users-request to be added). See the monthly Frequently Asked
;; Questions posting there for information on getting MH and MH-E:
;; http://www.faqs.org/faqs/mail/mh-faq/part1/preamble.html
;; N.B. MH must have been compiled with the MHE compiler flag or several
;; features necessary for MH-E will be missing from MH commands, specifically
;; the -build switch to repl and forw.
;; MH-E is an Emacs interface to the MH mail system.
;; MH-E is supported in GNU Emacs 20 and 21, with MH 6.8.4 and nmh 1.0.4.
;; Mailing Lists:
;; mh-e-users@lists.sourceforge.net
;; mh-e-announce@lists.sourceforge.net
;; mh-e-devel@lists.sourceforge.net
;;
;; Subscribe by sending a "subscribe" message to
;; <list>-request@lists.sourceforge.net, or by using the web interface at
;; https://sourceforge.net/mail/?group_id=13357
;; Bug Reports:
;; https://sourceforge.net/tracker/?group_id=13357&atid=113357
;; Include the output of M-x mh-version in any bug report.
;; Feature Requests:
;; https://sourceforge.net/tracker/?atid=363357&group_id=13357&func=browse
;; Support:
;; https://sourceforge.net/tracker/?group_id=13357&atid=213357
;;; Change Log:
;; 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@lcs.mit.edu
;; Maintenance picked up by Bill Wohler <wohler@newt.com> and the
;; SourceForge Crew <http://mh-e.sourceforge.net/>. 2001.
;; $Id: mh-e.el,v 1.198 2002/11/29 15:33:37 wohler Exp $
;;; Code:
(require 'cl)
(require 'mh-utils)
(require 'gnus-util)
(require 'easymenu)
(if mh-xemacs-flag
(require 'mh-xemacs-compat))
;; Shush the byte-compiler
(defvar font-lock-auto-fontify)
(defvar font-lock-defaults)
(defvar tool-bar-mode)
(defconst mh-version "7.0" "Version number of MH-E.")
;;; Initial Autoloads
;;; The autoloads for mh-undo-folder, mh-widen and mh-reply are needed before
;;; they are used to avoid compiler warnings.
(autoload 'mh-undo-folder "mh-funcs"
"Undo all commands in current folder." t)
(autoload 'mh-widen "mh-seq"
"Remove restrictions from current folder, thereby showing all messages." t)
(autoload 'mh-reply "mh-comp"
"Reply to a MESSAGE (default: displayed message).
If optional prefix argument INCLUDEP provided, then include the message
in the reply using filter mhl.reply in your MH directory.
Prompts for type of addresses to reply to:
from sender only,
to sender and primary recipients,
cc/all sender and all recipients.
If the file named by `mh-repl-formfile' exists, it is used as a skeleton
for the reply. See also documentation for `\\[mh-send]' function." t)
(autoload 'mh-map-to-seq-msgs "mh-seq")
(autoload 'mh-notate-seq "mh-seq")
(autoload 'mh-destroy-postponed-handles "mh-mime")
(autoload 'mh-press-button "mh-mime")
(autoload 'mh-mime-save-part "mh-mime")
(autoload 'mh-mime-inline-part "mh-mime")
(autoload 'mh-mime-save-parts "mh-mime")
(autoload 'mh-thread-inc "mh-seq")
(autoload 'mh-thread-forget-message "mh-seq")
(autoload 'mh-thread-add-spaces "mh-seq")
(autoload 'Info-goto-node "info")
;;; Hooks:
(defgroup mh nil
"Emacs interface to the MH mail system."
:group 'mail)
(defgroup mh-hook nil
"Hooks to MH-E mode."
:prefix "mh-"
:group 'mh)
(defcustom mh-folder-mode-hook nil
"Invoked in `mh-folder-mode' on a new folder."
:type 'hook
:group 'mh-hook)
(defcustom mh-inc-folder-hook nil
"Invoked by \\<mh-folder-mode-map>`\\[mh-inc-folder]' after incorporating mail into a folder."
:type 'hook
:group 'mh-hook)
(defcustom mh-folder-updated-hook nil
"Invoked when the folder actions (such as moves and deletes) are performed.
Variables that are useful in this hook include `mh-delete-list' and
`mh-refile-list' which can be used to see which changes are being made to
current folder, `mh-current-folder'."
:type 'hook
:group 'mh-hook)
(defcustom mh-delete-msg-hook nil
"Invoked after marking each message for deletion."
:type 'hook
:group 'mh-hook)
(defcustom mh-refile-msg-hook nil
"Invoked after marking each message for refiling."
:type 'hook
:group 'mh-hook)
(defcustom mh-folder-list-change-hook nil
"Invoked whenever the cached folder list `mh-folder-list' is changed."
:type 'hook
:group 'mh-hook)
(defcustom mh-before-quit-hook nil
"Invoked by \\<mh-folder-mode-map>`\\[mh-quit]' before quitting MH-E.
See also `mh-quit-hook'."
:type 'hook
:group 'mh-hook)
(defcustom mh-quit-hook nil
"Invoked after \\<mh-folder-mode-map>`\\[mh-quit]' quits MH-E.
See also `mh-before-quit-hook'."
:type 'hook
:group 'mh-hook)
(defcustom mh-unseen-updated-hook nil
"Invoked after the unseen sequence has been updated.
The variable `mh-seen-list' can be used to obtain the list of messages which
will be removed from the unseen sequence."
:type 'hook
:group 'mh-hook)
;;; Personal preferences:
(defcustom mh-lpr-command-format "lpr -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 formatted
message text is piped to this command when you type \\<mh-folder-mode-map>`\\[mh-print-msg]'."
:type 'string
:group 'mh)
(defcustom mh-scan-prog "scan"
"*Program to run to generate one-line-per-message listing of a folder.
Normally \"scan\" or a file name linked to scan. This file is searched
for relative to the mh-progs directory unless it is an absolute pathname."
:type 'string
:group 'mh)
(make-variable-buffer-local 'mh-scan-prog)
(defcustom mh-inc-prog "inc"
"*Program to run to incorporate new mail into a folder.
Normally \"inc\". This file is searched for relative to
the mh-progs directory unless it is an absolute pathname."
:type 'string
:group 'mh)
(defcustom mh-print-background-flag nil
"*Non-nil means messages should be printed in the background.
WARNING: do not delete the messages until printing is finished;
otherwise, your output may be truncated."
:type 'boolean
:group 'mh)
(defcustom mh-recenter-summary-flag nil
"*Non-nil means to recenter the summary window.
Recenter the summary window when the show window is toggled off if non-nil."
:type 'boolean
:group 'mh)
(defcustom mh-do-not-confirm-flag nil
"*Non-nil means do not prompt for confirmation.
Commands such as `mh-pack-folder' prompt to confirm whether to process
outstanding moves and deletes or not before continuing. A non-nil setting will
perform the action--which is usually desired but cannot be retracted--without
question."
:type 'boolean
:group 'mh)
(defcustom mh-store-default-directory nil
"*Last directory used by \\[mh-store-msg]; default for next store.
A directory name string, or nil to use current directory."
:type '(choice (const :tag "Current" nil)
directory)
:group 'mh)
(defvar mh-note-deleted "D"
"String whose first character is used to notate deleted messages.")
(defvar mh-note-refiled "^"
"String whose first character is used to notate refiled messages.")
(defvar mh-note-cur "+"
"String whose first character is used to notate the current message.")
(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.")
;;; Parameterize MH-E to work with different scan formats. The defaults work
;;; with the standard MH scan listings, in which the first 4 characters on
;;; the line are the message number, followed by two places for notations.
(defcustom mh-scan-format-file t
"Specifies the format file to pass to the scan program.
If t, the format string will be taken from the either `mh-scan-format-mh'
or `mh-scan-format-nmh' depending on whether MH or nmh is in use.
If nil, the default scan output will be used.
If you customize the scan format, you may need to modify a few variables
containing regexps that MH-E uses to identify specific portions of the output.
Use `M-x apropos RET mh-scan.*regexp' to obtain a list of these variables. You
may also have to call `mh-set-cmd-note' with the width of your message
numbers. See also `mh-adaptive-cmd-note-flag'."
:type '(choice (const :tag "Use MH-E scan format" t)
(const :tag "Use default scan format" nil)
(file :tag "Specify a scan format file"))
:group 'mh)
;; The following scan formats are passed to the scan program if the
;; setting of `mh-scan-format-file' above is nil. They are identical
;; except the later one makes use of the nmh `decode' function to
;; decode RFC 2047 encodings. If you just want to change the width of
;; the msg number, use the `mh-set-cmd-note' function.
(defvar mh-scan-format-mh
(concat
"%4(msg)"
"%<(cur)+%| %>"
"%<{replied}-"
"%?(nonnull(comp{to}))%<(mymbox{to})t%>"
"%?(nonnull(comp{cc}))%<(mymbox{cc})c%>"
"%?(nonnull(comp{bcc}))%<(mymbox{bcc})b%>"
"%?(nonnull(comp{newsgroups}))n%>"
"%<(zero) %>"
"%02(mon{date})/%02(mday{date})%<{date} %|*%>"
"%<(mymbox{from})%<{to}To:%14(friendly{to})%>%>"
"%<(zero)%17(friendly{from})%> "
"%{subject}%<{body}<<%{body}%>")
"*Scan format string for MH, provided to the scan program via the -format arg.
This format is identical to the default except that additional hints for
fontification have been added to the fifth column (remember that in Emacs, the
first column is 0).
The values of the fifth column, in priority order, are: `-' if the
message has been replied to, t if an address on the To: line matches
one of the mailboxes of the current user, `c' if the Cc: line matches,
`b' if the Bcc: line matches, and `n' if a non-empty Newsgroups: header
is present.")
(defvar mh-scan-format-nmh
(concat
"%4(msg)"
"%<(cur)+%| %>"
"%<{replied}-"
"%?(nonnull(comp{to}))%<(mymbox{to})t%>"
"%?(nonnull(comp{cc}))%<(mymbox{cc})c%>"
"%?(nonnull(comp{bcc}))%<(mymbox{bcc})b%>"
"%?(nonnull(comp{newsgroups}))n%>"
"%<(zero) %>"
"%02(mon{date})/%02(mday{date})%<{date} %|*%>"
"%<(mymbox{from})%<{to}To:%14(decode(friendly{to}))%>%>"
"%<(zero)%17(decode(friendly{from}))%> "
"%(decode{subject})%<{body}<<%{body}%>")
"*Scan format string for nmh.
This string is passed to the scan program via the -format arg.
This format is identical to the default except that additional hints for
fontification have been added to the fifth column (remember that in Emacs, the
first column is 0).
The values of the fifth column, in priority order, are: `-' if the
message has been replied to, t if an address on the To: line matches
one of the mailboxes of the current user, `c' if the Cc: line matches,
`b' if the Bcc: line matches, and `n' if a non-empty Newsgroups: header
is present.")
(defvar mh-scan-good-msg-regexp "^\\( *[0-9]+\\)[^D^0-9]"
"Regexp specifying the scan lines that are 'good' messages.
The default `mh-folder-font-lock-keywords' expects this expression to contain
at least one parenthesized expression which matches the message number.")
(defvar mh-scan-deleted-msg-regexp "^\\( *[0-9]+\\)D"
"Regexp matching scan lines of deleted messages.
The default `mh-folder-font-lock-keywords' expects this expression to contain
at least one parenthesized expression which matches the message number.")
(defvar mh-scan-refiled-msg-regexp "^\\( *[0-9]+\\)\\^"
"Regexp matching scan lines of refiled messages.
The default `mh-folder-font-lock-keywords' expects this expression to contain
at least one parenthesized expression which matches the message number.")
(defvar mh-scan-valid-regexp "^ *[0-9]"
"Regexp matching scan lines for messages (not error messages).")
(defvar mh-scan-cur-msg-number-regexp "^\\( *[0-9]+\\+\\).*"
"Regexp matching scan line for the current message.
The default `mh-folder-font-lock-keywords' expects this expression to contain
at least one parenthesized expression which matches the message number.
Don't disable this regexp as it's needed by non fontifying functions.")
(defvar mh-scan-cur-msg-regexp "^\\( *[0-9]+\\+DISABLED.*\\)"
"Regexp matching scan line for the current message.
The default `mh-folder-font-lock-keywords' expects this expression to contain
at least one parenthesized expression which matches the whole line.
To enable this feature, remove the string DISABLED from the regexp.")
(defvar mh-scan-date-regexp "\\([0-9][0-9]/[0-9][0-9]\\)"
"Regexp matching a valid date in scan lines.
The default `mh-folder-font-lock-keywords' expects this expression to contain
only one parenthesized expression which matches the date field
\(see `mh-scan-format-regexp').")
(defvar mh-scan-rcpt-regexp "\\(To:\\)\\(..............\\)"
"Regexp specifying the recipient in scan lines for messages we sent.
The default `mh-folder-font-lock-keywords' expects this expression to contain
two parenthesized expressions. The first is expected to match the To:
that the default scan format file generates. The second is expected to match
the recipient's name.")
(defvar mh-scan-body-regexp "\\(<<\\([^\n]+\\)?\\)"
"Regexp matching the message body beginning displayed in scan lines.
The default `mh-folder-font-lock-keywords' expects this expression to contain
at least one parenthesized expression which matches the body text.")
(defvar mh-scan-subject-regexp
;;"^ *[0-9]+........[ ]*...................\\([Rr][Ee]:\\s-*\\)*\\([^<\n]*\\)"
"^ *[0-9]+........[ ]*...................\\([Rr][Ee]\\(\\[[0-9]+\\]\\)?:\\s-*\\)*\\([^<\n]*\\)"
"*Regexp matching the subject string in MH folder mode.
The default `mh-folder-font-lock-keywords' expects this expression to contain
at least tree parenthesized expressions. The first is expected to match the Re:
string, if any. The second matches an optional bracketed number after Re,
such as in Re[2]: and the third is expected to match the subject line itself.")
(defvar mh-scan-format-regexp
(concat "\\([bct]\\)" mh-scan-date-regexp " *\\(..................\\)")
"Regexp matching the output of scan.
The default value is based upon the default values of either
`mh-scan-format-mh' or `mh-scan-format-nmh'.
The default `mh-folder-font-lock-keywords' expects this expression to contain
at least three parenthesized expressions. The first should match the
fontification hint, the second is found in `mh-scan-date-regexp', and the
third should match the user name.")
(defvar mh-folder-followup-face 'mh-folder-followup-face
"Face for highlighting Re: (followup) subject text in MH-Folder buffers.")
(defface mh-folder-followup-face
'((((class color) (background light))
(:foreground "blue3"))
(((class color) (background dark))
(:foreground "LightGoldenRod"))
(t
(:bold t)))
"Face for highlighting Re: (followup) subject text in MH-Folder buffers."
:group 'mh)
(defvar mh-folder-address-face 'mh-folder-address-face
"Face for highlighting the address in MH-Folder buffers.")
(copy-face 'mh-folder-subject-face 'mh-folder-address-face)
(defvar mh-folder-scan-format-face 'mh-folder-scan-format-face
"Face for highlighting `mh-scan-format-regexp' matches in MH-Folder buffers.")
(copy-face 'mh-folder-followup-face 'mh-folder-scan-format-face)
(defvar mh-folder-date-face 'mh-folder-date-face
"Face for highlighting the date in MH-Folder buffers.")
(defface mh-folder-date-face
'((((class color) (background light))
(:foreground "snow4"))
(((class color) (background dark))
(:foreground "snow3"))
(t
(:bold t)))
"Face for highlighting the date in MH-Folder buffers."
:group 'mh)
(defvar mh-folder-msg-number-face 'mh-folder-msg-number-face
"Face for highlighting the message number in MH-Folder buffers.")
(defface mh-folder-msg-number-face
'((((class color) (background light))
(:foreground "snow4"))
(((class color) (background dark))
(:foreground "snow3"))
(t
(:bold t)))
"Face for highlighting the message number in MH-Folder buffers."
:group 'mh)
(defvar mh-folder-deleted-face 'mh-folder-deleted-face
"Face for highlighting deleted messages in MH-Folder buffers.")
(copy-face 'mh-folder-msg-number-face 'mh-folder-deleted-face)
(defvar mh-folder-cur-msg-face 'mh-folder-cur-msg-face
"Face for the current message line in MH-Folder buffers.")
(defface mh-folder-cur-msg-face
'((((type tty pc) (class color))
(:background "LightGreen"))
(((class color) (background light))
(:background "LightGreen") ;Use this for solid background colour
;;; (:underline t) ;Use this for underlining
)
(((class color) (background dark))
(:background "DarkOliveGreen4"))
(t (:underline t)))
"Face for the current message line in MH-Folder buffers."
:group 'mh)
;;mh-folder-subject-face is defined in mh-utils since it's needed there
;;for mh-show-subject-face.
(defvar mh-folder-refiled-face 'mh-folder-refiled-face
"Face for highlighting refiled messages in MH-Folder buffers.")
(defface mh-folder-refiled-face
'((((type tty) (class color)) (:foreground "yellow" :weight light))
(((class grayscale) (background light))
(:foreground "Gray90" :bold t :italic t))
(((class grayscale) (background dark))
(:foreground "DimGray" :bold t :italic t))
(((class color) (background light)) (:foreground "DarkGoldenrod"))
(((class color) (background dark)) (:foreground "LightGoldenrod"))
(t (:bold t :italic t)))
"Face for highlighting refiled messages in MH-Folder buffers."
:group 'mh)
(defvar mh-folder-cur-msg-number-face 'mh-folder-cur-msg-number-face
"Face for highlighting the current message in MH-Folder buffers.")
(defface mh-folder-cur-msg-number-face
'((((type tty) (class color)) (:foreground "cyan" :weight bold))
(((class grayscale) (background light)) (:foreground "LightGray" :bold t))
(((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
(((class color) (background light)) (:foreground "Purple"))
(((class color) (background dark)) (:foreground "Cyan"))
(t (:bold t)))
"Face for highlighting the current message in MH-Folder buffers."
:group 'mh)
(defvar mh-folder-to-face 'mh-folder-to-face
"Face for highlighting the To: string in MH-Folder buffers.")
(defface mh-folder-to-face
'((((type tty) (class color)) (:foreground "green"))
(((class grayscale) (background light)) (:foreground "DimGray" :italic t))
(((class grayscale) (background dark)) (:foreground "LightGray" :italic t))
(((class color) (background light)) (:foreground "RosyBrown"))
(((class color) (background dark)) (:foreground "LightSalmon"))
(t (:italic t)))
"Face for highlighting the To: string in MH-Folder buffers."
:group 'mh)
(defvar mh-folder-body-face 'mh-folder-body-face
"Face for highlighting body text in MH-Folder buffers.")
(defface mh-folder-body-face
'((((type tty) (class color)) (:foreground "green"))
(((class grayscale) (background light)) (:foreground "DimGray" :italic t))
(((class grayscale) (background dark)) (:foreground "LightGray" :italic t))
(((class color) (background light)) (:foreground "RosyBrown"))
(((class color) (background dark)) (:foreground "LightSalmon"))
(t (:italic t)))
"Face for highlighting body text in MH-Folder buffers."
:group 'mh)
(defvar mh-folder-font-lock-keywords
(list
;; Marked for deletion
(list (concat mh-scan-deleted-msg-regexp ".*")
'(0 mh-folder-deleted-face))
;; Marked for refile
(list (concat mh-scan-refiled-msg-regexp ".*")
'(0 mh-folder-refiled-face))
;;after subj
(list mh-scan-body-regexp '(1 mh-folder-body-face nil t))
'(mh-folder-font-lock-subject
(1 mh-folder-followup-face append t)
(2 mh-folder-subject-face append t))
;;current msg
(list mh-scan-cur-msg-number-regexp
'(1 mh-folder-cur-msg-number-face))
(list mh-scan-good-msg-regexp
'(1 mh-folder-msg-number-face)) ;; Msg number
(list mh-scan-date-regexp '(1 mh-folder-date-face)) ;; Date
(list mh-scan-rcpt-regexp
'(1 mh-folder-to-face) ;; To:
'(2 mh-folder-address-face)) ;; address
;; scan font-lock name
(list mh-scan-format-regexp
'(1 mh-folder-date-face)
'(3 mh-folder-scan-format-face))
;; Current message line
(list mh-scan-cur-msg-regexp
'(1 mh-folder-cur-msg-face prepend t))
;; Unseen messages in bold
'(mh-folder-font-lock-unseen (1 'bold append t))
)
"Regexp keywords used to fontify the MH-Folder buffer.")
(defvar mh-scan-cmd-note-width 1
"Number of columns consumed by the cmd-note field in `mh-scan-format'.
This column will have one of the values: ` ', `D', `^', `+' and where
` ' is the default value,
`D' is the `mh-note-deleted' character,
`^' is the `mh-note-refiled' character, and
`+' is the `mh-note-cur' character.")
(defvar mh-scan-destination-width 1
"Number of columns consumed by the destination field in `mh-scan-format'.
This column will have one of ' ', '%', '-', 't', 'c', 'b', or `n' in it.
A ' ' blank space is the default character.
A '%' indicates that the message in in a named MH sequence.
A '-' indicates that the message has been annotated with a replied field.
A 't' indicates that the message contains mymbox in the To: field.
A 'c' indicates that the message contains mymbox in the Cc: field.
A 'b' indicates that the message contains mymbox in the Bcc: field.
A 'n' indicates that the message contains a Newsgroups: field.")
(defvar mh-scan-date-width 5
"Number of columns consumed by the date field in `mh-scan-format'.
This column will typically be of the form mm/dd.")
(defvar mh-scan-date-flag-width 1
"Number of columns consumed to flag (in)valid dates in `mh-scan-format'.
This column will have ` ' for valid and `*' for invalid or missing dates.")
(defvar mh-scan-from-mbox-width 17
"Number of columns consumed with the \"From:\" line in `mh-scan-format'.
This column will have a friendly name or e-mail address of the
originator, or a \"To: address\" for outgoing e-mail messages.")
(defvar mh-scan-from-mbox-sep-width 2
"Number of columns consumed by whitespace after from-mbox in `mh-scan-format'.
This column will only ever have spaces in it.")
(defvar mh-scan-field-from-start-offset
(+ mh-scan-cmd-note-width
mh-scan-destination-width
mh-scan-date-width
mh-scan-date-flag-width)
"The offset from the `mh-cmd-note' to find the start of \"From:\" address.")
(defvar mh-scan-field-from-end-offset
(+ mh-scan-field-from-start-offset mh-scan-from-mbox-width)
"The offset from the `mh-cmd-note' to find the end of \"From:\" address.")
(defvar mh-scan-field-subject-start-offset
(+ mh-scan-cmd-note-width
mh-scan-destination-width
mh-scan-date-width
mh-scan-date-flag-width
mh-scan-from-mbox-width
mh-scan-from-mbox-sep-width)
"The offset from the `mh-cmd-note' to find the start of the subject.")
(defun mh-folder-font-lock-subject (limit)
"Return MH-E scan subject strings to font-lock between point and LIMIT."
(if (not (re-search-forward mh-scan-subject-regexp limit t))
nil
(if (match-beginning 1)
(set-match-data (list (match-beginning 1) (match-end 3)
(match-beginning 1) (match-end 3) nil nil))
(set-match-data (list (match-beginning 3) (match-end 3)
nil nil (match-beginning 3) (match-end 3))))
t))
;; Fontifify unseen mesages in bold.
(defvar mh-folder-unseen-seq-name nil
"Name of unseen sequence.
The default for this is provided by the function `mh-folder-unseen-seq-name'
On nmh systems.")
(defun mh-folder-unseen-seq-name ()
"Provide name of unseen sequence from mhparam."
(or mh-progs (mh-find-path))
(save-excursion
(let ((unseen-seq-name "unseen"))
(with-temp-buffer
(unwind-protect
(progn
(call-process (expand-file-name "mhparam" mh-progs)
nil '(t t) nil "-component" "Unseen-Sequence")
(goto-char (point-min))
(if (re-search-forward "Unseen-Sequence: \\(.*\\)$" nil t)
(setq unseen-seq-name (match-string 1))))))
unseen-seq-name)))
(defun mh-folder-unseen-seq-list ()
"Return a list of unseen message numbers for current folder."
(if (not mh-folder-unseen-seq-name)
(setq mh-folder-unseen-seq-name (mh-folder-unseen-seq-name)))
(cond
((not mh-folder-unseen-seq-name)
nil)
(t
(let ((folder mh-current-folder))
(save-excursion
(with-temp-buffer
(unwind-protect
(progn
(call-process (expand-file-name "mark" mh-progs)
nil '(t t) nil
folder "-seq" mh-folder-unseen-seq-name
"-list")
(goto-char (point-min))
(sort (mh-read-msg-list) '<)))))))))
(defvar mh-folder-unseen-seq-cache nil
"Internal cache variable used for font-lock in MH-E.
Should only be non-nil through font-lock stepping, and nil once font-lock
is done highlighting.")
(make-variable-buffer-local 'mh-folder-unseen-seq-cache)
(defun mh-folder-font-lock-unseen (limit)
"Return unseen message lines to font-lock between point and LIMIT."
(if (not mh-folder-unseen-seq-cache)
(setq mh-folder-unseen-seq-cache (mh-folder-unseen-seq-list)))
(let ((cur-msg (mh-get-msg-num nil)))
(cond
((not mh-folder-unseen-seq-cache)
nil)
((not cur-msg) ;Presumably at end of buffer
(setq mh-folder-unseen-seq-cache nil)
nil)
((member cur-msg mh-folder-unseen-seq-cache)
(let ((bpoint (progn (beginning-of-line)(point)))
(epoint (progn (forward-line 1)(point))))
(if (<= limit (point))
(setq mh-folder-unseen-seq-cache nil))
(set-match-data (list bpoint epoint bpoint epoint))
t))
(t
;; move forward one line at a time, checking each message number.
(while (and
(= 0 (forward-line 1))
(> limit (point))
(not (member (mh-get-msg-num nil) mh-folder-unseen-seq-cache))))
;; Examine how we must have exited the loop...
(let ((cur-msg (mh-get-msg-num nil)))
(cond
((or (not cur-msg)
(<= limit (point))
(not (member cur-msg mh-folder-unseen-seq-cache)))
(setq mh-folder-unseen-seq-cache nil)
nil)
((member cur-msg mh-folder-unseen-seq-cache)
(let ((bpoint (progn (beginning-of-line)(point)))
(epoint (progn (forward-line 1)(point))))
(if (<= limit (point))
(setq mh-folder-unseen-seq-cache nil))
(set-match-data (list bpoint epoint bpoint epoint))
t))))))))
;;; Internal variables:
(defvar mh-last-destination nil) ;Destination of last refile or write
;command.
(defvar mh-last-destination-folder nil) ;Destination of last refile command.
(defvar mh-last-destination-write nil) ;Destination of last write command.
(defvar mh-folder-mode-map (make-keymap)
"Keymap for MH folders.")
(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-next-direction 'forward) ;Direction to move to next message.
(defvar mh-narrowed-to-seq nil) ;Sequence display is narrowed to or
;nil if not narrowed.
(defvar mh-view-ops ()) ;Stack of ops that change the folder
;view (such as narrowing or threading).
(defvar mh-first-msg-num nil) ;Number of first msg in buffer.
(defvar mh-last-msg-num nil) ;Number of last msg in buffer.
(defvar mh-mode-line-annotation nil) ;Message range displayed in buffer.
;;; Macros and generic functions:
(defun mh-mapc (function list)
"Apply FUNCTION to each element of LIST for side effects only."
(while list
(funcall function (car list))
(setq list (cdr list))))
(defun mh-scan-format ()
"Return \"-format\" argument for the scan program."
(if (equal mh-scan-format-file t)
(list "-format" (if mh-nmh-flag
(list (mh-update-scan-format
mh-scan-format-nmh mh-cmd-note))
(list (mh-update-scan-format
mh-scan-format-mh mh-cmd-note))))
(if (not (equal mh-scan-format-file nil))
(list "-format" mh-scan-format-file))))
;;; Entry points:
;;;###autoload
(defun mh-rmail (&optional arg)
"Inc(orporate) new mail with MH.
Scan an MH folder if ARG is non-nil. This function is an entry point to MH-E,
the Emacs front end to the MH mail system."
(interactive "P")
(mh-find-path)
(if arg
(call-interactively 'mh-visit-folder)
(mh-inc-folder)))
;;;###autoload
(defun mh-nmail (&optional arg)
"Check for new mail in inbox folder.
Scan an MH folder if ARG is non-nil. This function is an entry point to MH-E,
the Emacs front end to the MH mail system."
(interactive "P")
(mh-find-path) ; init mh-inbox
(if arg
(call-interactively 'mh-visit-folder)
(mh-visit-folder mh-inbox)))
;;; User executable MH-E commands:
(defun mh-delete-msg (msg-or-seq)
"Mark the specified MSG-OR-SEQ 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. If variable `transient-mark-mode' is non-nil
and the mark is active, then the selected region is marked for deletion."
(interactive (list (cond
((mh-mark-active-p t)
(mh-region-to-sequence (region-beginning) (region-end))
'region)
(current-prefix-arg
(mh-read-seq-default "Delete" t))
(t
(mh-get-msg-num t)))))
(mh-delete-msg-no-motion msg-or-seq)
(mh-next-msg))
(defun mh-delete-msg-no-motion (msg-or-seq)
"Mark the specified MSG-OR-SEQ 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-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-functions
(defun mh-first-msg ()
"Move to the first message."
(interactive)
(goto-char (point-min))
(while (and (not (eobp)) (not (looking-at mh-scan-valid-regexp)))
(forward-line 1)))
(defun mh-header-display ()
"Show the current message with all its headers.
Displays headers that might have been suppressed by setting the
variables `mh-clean-message-header-flag' or `mhl-formfile', or by the fallback
behavior of scrolling uninteresting headers off the top of the window.
Type \"\\[mh-show]\" to show the message normally again."
(interactive)
(and (not mh-showing-with-headers)
(or mhl-formfile mh-clean-message-header-flag)
(mh-invalidate-show-buffer))
(let ((mh-decode-mime-flag nil)
(mhl-formfile nil)
(mh-clean-message-header-flag nil))
(mh-show-msg nil)
(mh-in-show-buffer (mh-show-buffer)
(goto-char (point-min))
(mh-recenter 0))
(setq mh-showing-with-headers t)))
(defun mh-inc-folder (&optional maildrop-name)
"Inc(orporate)s new mail into the Inbox folder.
Optional argument MAILDROP-NAME specifies an alternate maildrop from the
default. If the prefix argument is given, incorporates mail into the current
folder, otherwise uses the folder named by `mh-inbox'.
The value of `mh-inc-folder-hook' is a list of functions to be called, with no
arguments, after incorporating new mail.
Do not call this function from outside MH-E; use \\[mh-rmail] instead."
(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 mh-inbox))
(mh-make-folder mh-inbox)
(setq mh-previous-window-config config))
((not (eq (current-buffer) (get-buffer mh-inbox)))
(switch-to-buffer mh-inbox)
(setq mh-previous-window-config config)))))
(mh-get-new-mail maildrop-name)
(if mh-showing-mode (mh-show))
(run-hooks 'mh-inc-folder-hook))
(defun mh-last-msg ()
"Move to the last message."
(interactive)
(goto-char (point-max))
(while (and (not (bobp)) (looking-at "^$"))
(forward-line -1))
(mh-recenter nil))
(defun mh-next-undeleted-msg (&optional arg)
"Move to the next undeleted message ARG in window."
(interactive "p")
(setq mh-next-direction 'forward)
(forward-line 1)
(cond ((re-search-forward mh-scan-good-msg-regexp nil t arg)
(beginning-of-line)
(mh-maybe-show))
(t (forward-line -1)
(message "No more undeleted messages"))))
(defun mh-refile-msg (msg-or-seq folder)
"Refile MSG-OR-SEQ (default: displayed message) into FOLDER.
If optional prefix argument provided, then prompt for message sequence.
If variable `transient-mark-mode' is non-nil and the mark is active, then the
selected region is marked for refiling."
(interactive
(list (cond
((mh-mark-active-p t)
(mh-region-to-sequence (region-beginning) (region-end))
'region)
(current-prefix-arg
(mh-read-seq-default "Refile" t))
(t
(mh-get-msg-num t)))
(intern
(mh-prompt-for-folder
"Destination"
(or (and mh-default-folder-for-message-function
(let ((refile-file (mh-msg-filename (mh-get-msg-num t))))
(save-excursion
(set-buffer (get-buffer-create mh-temp-buffer))
(erase-buffer)
(insert-file-contents refile-file)
(let ((buffer-file-name refile-file))
(funcall mh-default-folder-for-message-function)))))
(and (eq 'refile (car mh-last-destination-folder))
(symbol-name (cdr mh-last-destination-folder)))
"")
t))))
(setq mh-last-destination (cons 'refile folder)
mh-last-destination-folder mh-last-destination)
(if (numberp msg-or-seq)
(mh-refile-a-msg msg-or-seq folder)
(mh-map-to-seq-msgs 'mh-refile-a-msg msg-or-seq folder))
(mh-next-msg))
(defun mh-refile-or-write-again (message)
"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 message (cdr mh-last-destination))
(message "Destination folder: %s" (cdr mh-last-destination)))
(t
(apply 'mh-write-msg-to-file message (cdr mh-last-destination))
(message "Destination: %s" (cdr mh-last-destination))))
(mh-next-msg))
(defun mh-quit ()
"Quit the current MH-E folder.
Restore the previous window configuration, if one exists.
The value of `mh-before-quit-hook' is a list of functions to be called, with
no arguments, immediately upon entry to this function.
The value of `mh-quit-hook' is a list of functions to be called, with no
arguments, upon exit of this function."
(interactive)
(run-hooks 'mh-before-quit-hook)
(let ((show-buffer (get-buffer mh-show-buffer)))
(when show-buffer
(kill-buffer show-buffer)))
(mh-update-sequences)
(mh-destroy-postponed-handles)
(bury-buffer (current-buffer))
(if (get-buffer mh-temp-buffer)
(kill-buffer mh-temp-buffer))
(if (get-buffer mh-temp-folders-buffer)
(kill-buffer mh-temp-folders-buffer))
(if (get-buffer mh-temp-sequences-buffer)
(kill-buffer mh-temp-sequences-buffer))
(if mh-previous-window-config
(set-window-configuration mh-previous-window-config))
(run-hooks 'mh-quit-hook))
(defun mh-page-msg (&optional arg)
"Page the displayed message forwards.
Scrolls ARG lines or a full screen if no argument is supplied. Show buffer
first if not displayed. Show the next undeleted message if looking at the
bottom of the current message."
(interactive "P")
(if mh-showing-mode
(if mh-page-to-next-msg-flag
(if (equal mh-next-direction 'backward)
(mh-previous-undeleted-msg)
(mh-next-undeleted-msg))
(if (mh-in-show-buffer (mh-show-buffer)
(pos-visible-in-window-p (point-max)))
(progn
(message (format
"End of message (Type %s to read %s undeleted message)"
(single-key-description last-input-event)
(if (equal mh-next-direction 'backward)
"previous"
"next")))
(setq mh-page-to-next-msg-flag t))
(scroll-other-window arg)))
(mh-show)))
(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")
(mh-in-show-buffer (mh-show-buffer)
(scroll-down arg)))
(defun mh-previous-undeleted-msg (&optional arg)
"Move to the previous undeleted message ARG in window."
(interactive "p")
(setq mh-next-direction 'backward)
(beginning-of-line)
(cond ((re-search-backward mh-scan-good-msg-regexp nil t arg)
(mh-maybe-show))
(t (message "No previous undeleted message"))))
(defun mh-goto-next-button (backward-flag &optional criterion)
"Search for next button satisfying criterion.
If BACKWARD-FLAG is non-nil search backward in the buffer for a mime button. If
CRITERION is a function or a symbol which has a function binding then that
function must return non-nil at the button we stop."
(unless (or (and (symbolp criterion) (fboundp criterion))
(functionp criterion))
(setq criterion (lambda (x) t)))
;; Move to the next button in the buffer satisfying criterion
(goto-char (or (save-excursion
(beginning-of-line)
;; Find point before current button
(let ((point-before-current-button
(save-excursion
(while (get-text-property (point) 'mh-data)
(unless (= (forward-line
(if backward-flag 1 -1))
0)
(if backward-flag
(goto-char (point-min))
(goto-char (point-max)))))
(point))))
;; Skip over current button
(while (and (get-text-property (point) 'mh-data)
(not (if backward-flag (bobp) (eobp))))
(forward-line (if backward-flag -1 1)))
;; Stop at next MIME button if any exists.
(block loop
(while (/= (progn
(unless (= (forward-line
(if backward-flag -1 1))
0)
(if backward-flag
(goto-char (point-max))
(goto-char (point-min)))
(beginning-of-line))
(point))
point-before-current-button)
(when (and (get-text-property (point) 'mh-data)
(funcall criterion (point)))
(return-from loop (point))))
nil)))
(point))))
(defun mh-next-button (&optional backward-flag)
"Go to the next MIME button.
Advance point to the next MIME button in the show buffer. If the end
of buffer is reached then the search wraps over to the start of the
buffer. With prefix argument, BACKWARD-FLAG the point will move to the
previous MIME button."
(interactive (list current-prefix-arg))
(unless mh-showing-mode
(mh-show))
(mh-in-show-buffer (mh-show-buffer)
(mh-goto-next-button backward-flag)))
(defun mh-prev-button ()
"Go to the prev MIME button.
Move point to the previous MIME button in the show buffer. If the beginning
of the buffer is reached then the search wraps over to the end of the
buffer."
(interactive)
(mh-next-button t))
(defun mh-folder-mime-action (part-index action include-security-flag)
"Go to PART-INDEX and carry out ACTION.
If PART-INDEX is nil then go to the next part in the buffer. The search for
the next buffer wraps around if end of buffer is reached. If argument
INCLUDE-SECURITY-FLAG is non-nil then include security info buttons when
searching for a suitable parts."
(unless mh-showing-mode
(mh-show))
(mh-in-show-buffer (mh-show-buffer)
(let ((criterion
(cond (part-index
(lambda (p)
(let ((part (get-text-property p 'mh-part)))
(and (integerp part) (= part part-index)))))
(t (lambda (p)
(if include-security-flag
(get-text-property p 'mh-data)
(integerp (get-text-property p 'mh-part)))))))
(point (point)))
(cond ((and (get-text-property point 'mh-part)
(or (null part-index)
(= (get-text-property point 'mh-part) part-index)))
(funcall action))
((and (get-text-property point 'mh-data)
include-security-flag
(null part-index))
(funcall action))
(t
(mh-goto-next-button nil criterion)
(if (= (point) point)
(message "No matching MIME part found")
(funcall action)))))))
(defun mh-folder-toggle-mime-part (part-index)
"Toggle display of button.
If point in show buffer is at a button then that part is toggled.
If not at a button and PART-INDEX is non-nil point is moved to that part.
With nil PART-INDEX find the first button after point (search wraps around if
end of buffer is reached) and toggle it."
(interactive "P")
(when (consp part-index) (setq part-index (car part-index)))
(mh-folder-mime-action part-index #'mh-press-button t))
(defun mh-folder-inline-mime-part (part-index)
"Show the raw bytes of MIME part inline.
If point in show buffer is at a mime part then that part is inlined.
If not at a mime-part and PART-INDEX is non-nil point is moved to that part.
With nil PART-INDEX find the first button after point (search wraps around if
end of buffer is reached) and inline it."
(interactive "P")
(when (consp part-index) (setq part-index (car part-index)))
(mh-folder-mime-action part-index #'mh-mime-inline-part nil))
(defun mh-folder-save-mime-part (part-index)
"Save MIME part.
If point in show buffer is at a mime part then that part is saved.
If not at a mime-part and PART-INDEX is non-nil point is moved to that part.
With nil PART-INDEX find the first button after point (search wraps around if
end of buffer is reached) and save it."
(interactive "P")
(when (consp part-index) (setq part-index (car part-index)))
(mh-folder-mime-action part-index #'mh-mime-save-part nil))
(defun mh-reset-threads-and-narrowing ()
"Reset all variables pertaining to threads and narrowing.
Also removes all content from the folder buffer."
(setq mh-view-ops ())
(setq mh-narrowed-to-seq nil)
(let ((buffer-read-only nil)) (erase-buffer)))
(defun mh-rescan-folder (&optional range dont-exec-pending)
"Rescan a folder after optionally processing the outstanding commands.
If optional prefix argument RANGE is provided, prompt for the range of
messages to display. Otherwise show the entire folder.
If optional argument DONT-EXEC-PENDING is non-nil then pending deletes and
refiles aren't carried out."
(interactive (list (if current-prefix-arg
(mh-read-msg-range "Range to scan [all]? ")
nil)))
(setq mh-next-direction 'forward)
(mh-reset-threads-and-narrowing)
(mh-scan-folder mh-current-folder (or range "all") dont-exec-pending))
(defun mh-write-msg-to-file (msg file no-headers)
"Append MSG to the end of a FILE.
If prefix argument NO-HEADERS is provided, write only the message body.
Otherwise send the entire message including the headers."
(interactive
(list (mh-get-msg-num t)
(let ((default-dir (if (eq 'write (car mh-last-destination-write))
(file-name-directory
(car (cdr mh-last-destination-write)))
default-directory)))
(read-file-name (format "Save message%s in file: "
(if current-prefix-arg " body" ""))
default-dir
(if (eq 'write (car mh-last-destination-write))
(car (cdr mh-last-destination-write))
(expand-file-name "mail.out" default-dir))))
current-prefix-arg))
(let ((msg-file-to-output (mh-msg-filename msg))
(output-file (mh-expand-file-name file)))
(setq mh-last-destination (list 'write file (if no-headers 'no-headers))
mh-last-destination-write mh-last-destination)
(save-excursion
(set-buffer (get-buffer-create mh-temp-buffer))
(erase-buffer)
(insert-file-contents msg-file-to-output)
(goto-char (point-min))
(if no-headers (search-forward "\n\n"))
(append-to-file (point) (point-max) output-file))))
(defun mh-toggle-showing ()
"Toggle the scanning mode/showing mode of displaying messages."
(interactive)
(if mh-showing-mode
(mh-set-scan-mode)
(mh-show)))
(defun mh-undo (msg-or-seq)
"Undo the pending deletion or refile of the specified MSG-OR-SEQ.
Default is the displayed message.
If optional prefix argument is provided, then prompt for the message sequence.
If variable `transient-mark-mode' is non-nil and the mark is active, then the
selected region is unmarked."
(interactive (list (cond
((mh-mark-active-p t)
(mh-region-to-sequence (region-beginning) (region-end))
'region)
(current-prefix-arg
(mh-read-seq-default "Undo" t))
(t
(mh-get-msg-num t)))))
(cond ((numberp msg-or-seq)
(let ((original-position (point)))
(beginning-of-line)
(while (not (or (looking-at mh-scan-deleted-msg-regexp)
(looking-at mh-scan-refiled-msg-regexp)
(and (eq mh-next-direction 'forward) (bobp))
(and (eq mh-next-direction 'backward)
(save-excursion (forward-line) (eobp)))))
(forward-line (if (eq mh-next-direction 'forward) -1 1)))
(if (or (looking-at mh-scan-deleted-msg-regexp)
(looking-at mh-scan-refiled-msg-regexp))
(progn
(mh-undo-msg (mh-get-msg-num t))
(mh-maybe-show))
(goto-char original-position)
(error "Nothing to undo"))))
(t
(mh-map-to-seq-msgs 'mh-undo-msg msg-or-seq)))
(if (not (mh-outstanding-commands-p))
(mh-set-folder-modified-p nil)))
;;;###autoload
(defun mh-version ()
"Display version information about MH-E and the MH mail handling system."
(interactive)
(mh-find-progs)
(set-buffer (get-buffer-create mh-temp-buffer))
(erase-buffer)
;; MH-E and Emacs versions.
(insert "MH-E " mh-version "\n\n" (emacs-version) "\n\n")
;; MH version.
(let ((help-start (point)))
(condition-case err-data
(mh-exec-cmd-output "inc" nil (if mh-nmh-flag "-version" "-help"))
(file-error (insert (mapconcat 'concat (cdr err-data) ": ") "\n")))
(goto-char help-start)
(if mh-nmh-flag
(search-forward "inc -- " nil t)
(search-forward "version: " nil t))
(delete-region help-start (point)))
(goto-char (point-max))
(insert "mh-progs:\t" mh-progs "\n"
"mh-lib:\t\t" mh-lib "\n"
"mh-lib-progs:\t" mh-lib-progs "\n\n")
;; Linux version.
(condition-case ()
(call-process "uname" nil t nil "-a")
(file-error))
(goto-char (point-min))
(display-buffer mh-temp-buffer))
(defun mh-visit-folder (folder &optional range)
"Visit FOLDER and display RANGE of messages.
Do not call this function from outside MH-E; see \\[mh-rmail] instead."
(interactive (list (mh-prompt-for-folder "Visit" mh-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))
nil)
(defun mh-update-sequences ()
"Update MH's Unseen-Sequence and current folder and message.
Flush MH-E's state out to MH. The message at the cursor becomes current."
(interactive)
;; mh-update-sequences is the opposite of mh-read-folder-sequences,
;; which updates MH-E's state from MH.
(let ((folder-set (mh-update-unseen))
(new-cur (mh-get-msg-num nil)))
(if new-cur
(let ((seq-entry (mh-find-seq 'cur)))
(mh-remove-cur-notation)
(setcdr seq-entry (list new-cur)) ;delete-seq-locally, add-msgs-to-seq
(mh-define-sequence 'cur (list new-cur))
(beginning-of-line)
(if (looking-at mh-scan-good-msg-regexp)
(mh-notate nil mh-note-cur mh-cmd-note)))
(or folder-set
(save-excursion
;; psg - mh-current-folder is nil if mh-summary-height < 4 !
;; So I added this sanity check.
(if (stringp mh-current-folder)
(mh-exec-cmd-quiet t "folder" mh-current-folder "-fast")
(mh-exec-cmd-quiet t "folder" "-fast")))))))
;;; Support routines.
(defun mh-delete-a-msg (msg)
"Delete the MSG.
The value of `mh-delete-msg-hook' is a list of functions to be called, with no
arguments, after the message has been deleted."
(save-excursion
(mh-goto-msg msg nil t)
(if (looking-at mh-scan-refiled-msg-regexp)
(error "Message %d is refiled. Undo refile before deleting" msg))
(if (looking-at mh-scan-deleted-msg-regexp)
nil
(mh-set-folder-modified-p t)
(setq mh-delete-list (cons msg mh-delete-list))
(mh-notate msg mh-note-deleted mh-cmd-note)
(run-hooks 'mh-delete-msg-hook))))
(defun mh-refile-a-msg (msg folder)
"Refile MSG in FOLDER.
Folder is a symbol, not a string.
The value of `mh-refile-msg-hook' is a list of functions to be called, with no
arguments, after the message has been refiled."
(save-excursion
(mh-goto-msg msg nil t)
(cond ((looking-at mh-scan-deleted-msg-regexp)
(error "Message %d is deleted. Undo delete before moving" msg))
((looking-at mh-scan-refiled-msg-regexp)
(if (y-or-n-p
(format "Message %d already refiled. Copy to %s as well? "
msg folder))
(mh-exec-cmd "refile" (mh-get-msg-num t) "-link"
"-src" mh-current-folder
(symbol-name folder))
(message "Message not copied.")))
(t
(mh-set-folder-modified-p t)
(if (null (assoc folder mh-refile-list))
(push (list folder msg) mh-refile-list)
(pushnew msg (cdr (assoc folder mh-refile-list))))
(mh-notate msg mh-note-refiled mh-cmd-note)
(run-hooks 'mh-refile-msg-hook)))))
(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-showing-mode 0)
(force-mode-line-update)
(if mh-recenter-summary-flag
(mh-recenter nil)))
(defun mh-undo-msg (msg)
"Undo the deletion or refile of one MSG."
(cond ((memq msg mh-delete-list)
(setq mh-delete-list (delq msg mh-delete-list)))
(t
(dolist (folder-msg-list mh-refile-list)
(setf (cdr folder-msg-list) (remove msg (cdr folder-msg-list))))
(setq mh-refile-list (remove-if #'(lambda (x) (null (cdr x)))
mh-refile-list))))
(mh-notate msg ? mh-cmd-note))
;;; The folder data abstraction.
(defun mh-make-folder (name)
"Create a new mail folder called NAME.
Make it the current folder."
(switch-to-buffer name)
(setq buffer-read-only nil)
(erase-buffer)
(if mh-adaptive-cmd-note-flag
(mh-set-cmd-note (mh-message-number-width name)))
(setq buffer-read-only t)
(mh-folder-mode)
(mh-set-folder-modified-p nil)
(setq buffer-file-name mh-folder-filename)
(mh-make-folder-mode-line))
;;; Ensure new buffers won't get this mode if default-major-mode is nil.
(put 'mh-folder-mode 'mode-class 'special)
;;; Menu extracted from mh-menubar.el V1.1 (31 July 2001)
;;; Menus for folder mode: folder, message, sequence (in that order)
;;; folder-mode "Sequence" menu
(easy-menu-define
mh-folder-sequence-menu mh-folder-mode-map "Menu for MH-E folder-sequence."
'("Sequence"
["Add Message to Sequence..." mh-put-msg-in-seq (mh-get-msg-num nil)]
["List Sequences for Message" mh-msg-is-in-seq (mh-get-msg-num nil)]
["Delete Message from Sequence..." mh-delete-msg-from-seq
(mh-get-msg-num nil)]
["List Sequences in Folder..." mh-list-sequences t]
["Delete Sequence..." mh-delete-seq t]
["Narrow to Sequence..." mh-narrow-to-seq t]
["Widen from Sequence" mh-widen mh-narrowed-to-seq]
"--"
["Narrow to Subject Sequence" mh-narrow-to-subject t]
["Delete Rest of Same Subject" mh-delete-subject t]
"--"
["Push State Out to MH" mh-update-sequences t]))
;;; folder-mode "Message" menu
(easy-menu-define
mh-folder-message-menu mh-folder-mode-map "Menu for MH-E folder-message."
'("Message"
["Show Message" mh-show (mh-get-msg-num nil)]
["Show Message with Header" mh-header-display (mh-get-msg-num nil)]
["Next Message" mh-next-undeleted-msg t]
["Previous Message" mh-previous-undeleted-msg t]
["Go to First Message" mh-first-msg t]
["Go to Last Message" mh-last-msg t]
["Go to Message by Number..." mh-goto-msg t]
["Modify Message" mh-modify]
["Delete Message" mh-delete-msg (mh-get-msg-num nil)]
["Refile Message" mh-refile-msg (mh-get-msg-num nil)]
["Undo Delete/Refile" mh-undo t]
["Process Delete/Refile" mh-execute-commands
(or mh-refile-list mh-delete-list)]
"--"
["Compose a New Message" mh-send t]
["Reply to Message..." mh-reply (mh-get-msg-num nil)]
["Forward Message..." mh-forward (mh-get-msg-num nil)]
["Redistribute Message..." mh-redistribute (mh-get-msg-num nil)]
["Edit Message Again" mh-edit-again (mh-get-msg-num nil)]
["Re-edit a Bounced Message" mh-extract-rejected-mail t]
"--"
["Copy Message to Folder..." mh-copy-msg (mh-get-msg-num nil)]
["Print Message" mh-print-msg (mh-get-msg-num nil)]
["Write Message to File..." mh-write-msg-to-file
(mh-get-msg-num nil)]
["Pipe Message to Command..." mh-pipe-msg (mh-get-msg-num nil)]
["Unpack Uuencoded Message..." mh-store-msg (mh-get-msg-num nil)]
["Burst Digest Message" mh-burst-digest (mh-get-msg-num nil)]))
;;; folder-mode "Folder" menu
(easy-menu-define
mh-folder-folder-menu mh-folder-mode-map "Menu for MH-E folder."
'("Folder"
["Incorporate New Mail" mh-inc-folder t]
["Toggle Show/Folder" mh-toggle-showing t]
["Execute Delete/Refile" mh-execute-commands
(or mh-refile-list mh-delete-list)]
["Rescan Folder" mh-rescan-folder t]
["Thread Folder" mh-toggle-threads
(not (memq 'unthread mh-view-ops))]
["Pack Folder" mh-pack-folder t]
["Sort Folder" mh-sort-folder t]
"--"
["List Folders" mh-list-folders t]
["Visit a Folder..." mh-visit-folder t]
["Search a Folder..." mh-search-folder t]
["Indexed Search..." mh-index-search t]
"--"
["Quit MH-E" mh-quit t]))
;;; Support for emacs21 toolbar using gnus/message.el icons (and code).
(eval-when-compile (defvar tool-bar-map))
(defvar mh-folder-tool-bar-map nil)
(defvar mh-folder-seq-tool-bar-map nil
"Tool-bar to use when narrowed to a sequence in MH-Folder buffers.")
(when (and (fboundp 'tool-bar-add-item)
tool-bar-mode)
(setq mh-folder-tool-bar-map
(let ((tool-bar-map (make-sparse-keymap)))
(tool-bar-add-item "mail" 'mh-inc-folder 'mh-foldertoolbar-inc-folder
:help "Incorporate new mail in Inbox")
(tool-bar-add-item "attach" 'mh-mime-save-parts
'mh-foldertoolbar-mime-save-parts
:help "Save MIME parts")
(tool-bar-add-item "left_arrow" 'mh-previous-undeleted-msg
'mh-foldertoolbar-prev :help "Previous message")
(tool-bar-add-item "page-down" 'mh-page-msg 'mh-foldertoolbar-page
:help "Page this message")
(tool-bar-add-item "right_arrow" 'mh-next-undeleted-msg
'mh-foldertoolbar-next :help "Next message")
(tool-bar-add-item "close" 'mh-delete-msg 'mh-foldertoolbar-delete
:help "Mark for deletion")
(tool-bar-add-item "refile" 'mh-refile-msg 'mh-foldertoolbar-refile
:help "Refile this message")
(tool-bar-add-item "undo" 'mh-undo 'mh-foldertoolbar-undo
:help "Undo this mark")
(tool-bar-add-item "execute" 'mh-execute-commands 'mh-foldertoolbar-exec
:help "Perform moves and deletes")
(tool-bar-add-item "show" 'mh-toggle-showing
'mh-foldertoolbar-toggle-show
:help "Toggle showing message")
(cond
(mh-tool-bar-reply-3-buttons-flag
(tool-bar-add-item "reply-from" (lambda (&optional arg)
(interactive "P")
(mh-reply (mh-get-msg-num nil)
"from" arg))
'mh-foldertoolbar-reply-from
:help "Reply to \"from\"")
(tool-bar-add-item "reply-to" (lambda (&optional arg)
(interactive "P")
(mh-reply (mh-get-msg-num nil)
"to" arg))
'mh-foldertoolbar-reply-to
:help "Reply to \"to\"")
(tool-bar-add-item "reply-all" (lambda (&optional arg)
(interactive "P")
(mh-reply (mh-get-msg-num nil)
"all" arg))
'mh-foldertoolbar-reply-all
:help "Reply to \"all\""))
(t
(tool-bar-add-item "mail/reply2" 'mh-reply 'mh-foldertoolbar-reply
:help "Reply to this message")))
(tool-bar-add-item "mail_compose" 'mh-send 'mh-foldertoolbar-compose
:help "Compose new message")
(tool-bar-add-item "rescan" 'mh-rescan-folder 'mh-foldertoolbar-rescan
:help "Rescan this folder")
(tool-bar-add-item "repack" 'mh-pack-folder 'mh-foldertoolbar-pack
:help "Repack this folder")
(tool-bar-add-item "search"
(lambda (&optional arg)
(interactive "P")
(call-interactively mh-tool-bar-search-function))
'mh-foldertoolbar-search :help "Search")
(tool-bar-add-item "fld_open" 'mh-visit-folder 'mh-foldertoolbar-visit
:help "Visit other folder")
(tool-bar-add-item "preferences" (lambda ()
(interactive)
(customize-group "mh"))
'mh-foldertoolbar-customize
:help "mh-e preferences")
(tool-bar-add-item "help" (lambda ()
(interactive)
(Info-goto-node "(mh-e)Top"))
'mh-foldertoolbar-help :help "Help")
tool-bar-map))
(setq mh-folder-seq-tool-bar-map
(let ((tool-bar-map (copy-keymap mh-folder-tool-bar-map)))
(tool-bar-add-item "widen" 'mh-widen 'mh-foldertoolbar-widen
:help "Widen from this sequence")
tool-bar-map))
)
(defmacro mh-remove-xemacs-horizontal-scrollbar ()
"Get rid of the horizontal scrollbar that XEmacs insists on putting in."
(when mh-xemacs-flag
`(if (and (featurep 'scrollbar)
(fboundp 'set-specifier))
(set-specifier horizontal-scrollbar-visible-p nil
(cons (current-buffer) nil)))))
(defmacro mh-write-file-functions-compat ()
"Return `write-file-functions' if it exists.
Otherwise return `local-write-file-hooks'. This macro exists purely for
compatibility. The former symbol is used in Emacs 21.4 onward while the latter
is used in previous versions and XEmacs."
(if (boundp 'write-file-functions)
''write-file-functions ;Emacs 21.4
''local-write-file-hooks)) ;<Emacs 21.4, XEmacs
(define-derived-mode mh-folder-mode fundamental-mode "MH-Folder"
"Major MH-E mode for \"editing\" an MH folder scan listing.\\<mh-folder-mode-map>
You can show the message the cursor is pointing to, and step through the
messages. Messages can be marked for deletion or refiling into another
folder; these commands are executed all at once with a separate command.
A prefix argument (\\[universal-argument]) to delete, refile, list, or undo
applies the action to a message sequence. If `transient-mark-mode',
is non-nil, the action is applied to the region.
Options that control this mode can be changed with \\[customize-group];
specify the \"mh\" group. In particular, please see the `mh-scan-format-file'
option if you wish to modify scan's format.
When a folder is visited, the hook `mh-folder-mode-hook' is run.
\\{mh-folder-mode-map}"
(make-local-variable 'font-lock-defaults)
(setq font-lock-defaults '(mh-folder-font-lock-keywords t))
(mh-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-mode nil ; Show message also?
'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-view-ops () ; Stack that keeps track of the order
; in which narrowing/threading has been
; carried out.
'mh-first-msg-num nil ; Number of first msg in buffer
'mh-last-msg-num nil ; Number of last msg in buffer
'mh-msg-count nil ; Number of msgs in buffer
'mh-mode-line-annotation nil ; Indiction this is not the full folder
'mh-previous-window-config nil) ; Previous window configuration
(mh-remove-xemacs-horizontal-scrollbar)
(setq truncate-lines t)
(auto-save-mode -1)
(setq buffer-offer-save t)
(add-hook (mh-write-file-functions-compat) 'mh-execute-commands nil t)
(make-local-variable 'revert-buffer-function)
(make-local-variable 'hl-line-mode) ; avoid pollution
(if (fboundp 'hl-line-mode)
(hl-line-mode 1))
(setq revert-buffer-function 'mh-undo-folder)
(or (assq 'mh-showing-mode minor-mode-alist)
(setq minor-mode-alist
(cons '(mh-showing-mode " Show") minor-mode-alist)))
(easy-menu-add mh-folder-sequence-menu)
(easy-menu-add mh-folder-message-menu)
(easy-menu-add mh-folder-folder-menu)
(if (and (boundp 'tool-bar-mode) tool-bar-mode)
(set (make-local-variable 'tool-bar-map) mh-folder-tool-bar-map))
(if (and mh-xemacs-flag
font-lock-auto-fontify)
(turn-on-font-lock))) ; Force font-lock in XEmacs.
(defun mh-make-local-vars (&rest pairs)
"Initialize local variables according to the variable-value PAIRS."
(while pairs
(set (make-local-variable (car pairs)) (car (cdr pairs)))
(setq pairs (cdr (cdr pairs)))))
(defun mh-scan-folder (folder range &optional dont-exec-pending)
"Scan the FOLDER over the RANGE.
If the optional argument DONT-EXEC-PENDING is non-nil then pending deletes and
refiles aren't carried out.
Return in the folder's buffer."
(cond ((null (get-buffer folder))
(mh-make-folder folder))
(t
(or dont-exec-pending (mh-process-or-undo-commands folder))
(switch-to-buffer folder)))
(mh-regenerate-headers range)
(if (zerop (buffer-size))
(if (equal range "all")
(message "Folder %s is empty" folder)
(message "No messages in %s, range %s" folder range))
(mh-goto-cur-msg))
(save-excursion
(when dont-exec-pending
;; Re-annotate messages to be refiled...
(dolist (folder-msg-list mh-refile-list)
(dolist (msg (cdr folder-msg-list))
(mh-notate msg mh-note-refiled mh-cmd-note)))
;; Re-annotate messages to be deleted...
(dolist (msg mh-delete-list)
(mh-notate msg mh-note-deleted mh-cmd-note)))))
(defun mh-regenerate-headers (range &optional update)
"Scan folder over range RANGE.
If UPDATE, append the scan lines, otherwise replace."
(let ((folder mh-current-folder)
(range (if (and range (atom range)) (list range) range))
scan-start)
(message "Scanning %s..." folder)
(with-mh-folder-updating (nil)
(if update
(goto-char (point-max))
(delete-region (point-min) (point-max))
(if mh-adaptive-cmd-note-flag
(mh-set-cmd-note (mh-message-number-width folder))))
(setq scan-start (point))
(apply #'mh-exec-cmd-output
mh-scan-prog nil
(mh-scan-format)
"-noclear" "-noheader"
"-width" (window-width)
folder range)
(goto-char scan-start)
(cond ((looking-at "scan: no messages in")
(keep-lines mh-scan-valid-regexp)) ; Flush random scan lines
((looking-at "scan: bad message list ")
(keep-lines mh-scan-valid-regexp))
((looking-at "scan: ")) ; Keep error messages
(t
(keep-lines mh-scan-valid-regexp))) ; Flush random scan lines
(setq mh-seq-list (mh-read-folder-sequences folder nil))
(mh-notate-user-sequences)
(or update
(setq mh-mode-line-annotation
(if (equal range '("all"))
nil
mh-partial-folder-mode-line-annotation)))
(mh-make-folder-mode-line))
(message "Scanning %s...done" folder)))
(defun mh-generate-new-cmd-note (folder)
"Fix the `mh-cmd-note' value for this FOLDER.
After doing an `mh-get-new-mail' operation in this FOLDER, at least
one line that looks like a truncated message number was found.
Remove the text added by the last `mh-inc' command. It should be the
messages cur-last. Call `mh-set-cmd-note' with the widest message number
in FOLDER.
Reformat the message number width on each line in the buffer and trim
the line length to fit in the window.
Rescan the FOLDER in the range cur-last in order to display the
messages that were removed earlier. They should all fit in the scan
line now with no message truncation."
(save-excursion
(let ((maxcol (1- (window-width)))
(old-cmd-note mh-cmd-note)
mh-cmd-note-fmt
msgnum)
;; Nuke all of the lines just added by the last inc
(delete-char (- (point-max) (point)))
;; Update the current buffer to reflect the new mh-cmd-note
;; value needed to display messages.
(mh-set-cmd-note (mh-message-number-width folder))
(setq mh-cmd-note-fmt (concat "%" (format "%d" mh-cmd-note) "d"))
;; Cleanup the messages that are in the buffer right now
(goto-char (point-min))
(cond ((memq 'unthread mh-view-ops)
(mh-thread-add-spaces (- mh-cmd-note old-cmd-note)))
(t (while (re-search-forward mh-scan-msg-number-regexp nil 0 1)
;; reformat the number to fix in mh-cmd-note columns
(setq msgnum (string-to-number
(buffer-substring
(match-beginning 1) (match-end 1))))
(replace-match (format mh-cmd-note-fmt msgnum))
;; trim the line to fix in the window
(end-of-line)
(let ((eol (point)))
(move-to-column maxcol)
(if (<= (point) eol)
(delete-char (- eol (point))))))))
;; now re-read the lost messages
(goto-char (point-max))
(prog1 (point)
(mh-regenerate-headers "cur-last" t)))))
(defun mh-get-new-mail (maildrop-name)
"Read new mail from MAILDROP-NAME into the current buffer.
Return in the current buffer."
(let ((point-before-inc (point))
(folder mh-current-folder)
(new-mail-flag nil))
(with-mh-folder-updating (t)
(if maildrop-name
(message "inc %s -file %s..." folder maildrop-name)
(message "inc %s..." folder))
(setq mh-next-direction 'forward)
(goto-char (point-max))
(let ((start-of-inc (point)))
(mh-remove-cur-notation)
(if maildrop-name
;; I think MH 5 used "-ms-file" instead of "-file",
;; which would make inc'ing from maildrops fail.
(mh-exec-cmd-output mh-inc-prog nil folder
(mh-scan-format)
"-file" (expand-file-name maildrop-name)
"-width" (window-width)
"-truncate")
(mh-exec-cmd-output mh-inc-prog nil
(mh-scan-format)
"-width" (window-width)))
(if maildrop-name
(message "inc %s -file %s...done" folder maildrop-name)
(message "inc %s...done" folder))
(goto-char start-of-inc)
(cond ((save-excursion
(re-search-forward "^inc: no mail" nil t))
(message "No new mail%s%s" (if maildrop-name " in " "")
(if maildrop-name maildrop-name "")))
((and (when mh-narrowed-to-seq
(let ((saved-text (buffer-substring-no-properties
start-of-inc (point-max))))
(delete-region start-of-inc (point-max))
(unwind-protect (mh-widen)
(goto-char (point-max))
(setq start-of-inc (point))
(insert saved-text)
(goto-char start-of-inc))))
nil))
((re-search-forward "^inc:" nil t) ; Error messages
(error "Error incorporating mail"))
((and
(equal mh-scan-format-file t)
mh-adaptive-cmd-note-flag
;; Have we reached an edge condition?
(save-excursion
(re-search-forward mh-scan-msg-overflow-regexp nil 0 1))
(setq start-of-inc (mh-generate-new-cmd-note folder))
nil))
(t
(setq new-mail-flag t)))
(keep-lines mh-scan-valid-regexp) ; Flush random scan lines
(setq mh-seq-list (mh-read-folder-sequences folder t))
(mh-notate-user-sequences)
(if new-mail-flag
(progn
(mh-make-folder-mode-line)
(when (memq 'unthread mh-view-ops)
(mh-thread-inc folder start-of-inc))
(mh-goto-cur-msg))
(goto-char point-before-inc))))))
(defun mh-make-folder-mode-line (&optional ignored)
"Set the fields of the mode line for a folder buffer.
The optional argument is now obsolete and IGNORED. It used to be used to pass
in what is now stored in the buffer-local variable `mh-mode-line-annotation'."
(save-excursion
(save-window-excursion
(mh-first-msg)
(let ((new-first-msg-num (mh-get-msg-num nil)))
(when (or (not (memq 'unthread mh-view-ops))
(null mh-first-msg-num)
(null new-first-msg-num)
(< new-first-msg-num mh-first-msg-num))
(setq mh-first-msg-num new-first-msg-num)))
(mh-last-msg)
(let ((new-last-msg-num (mh-get-msg-num nil)))
(when (or (not (memq 'unthread mh-view-ops))
(null mh-last-msg-num)
(null new-last-msg-num)
(> new-last-msg-num mh-last-msg-num))
(setq mh-last-msg-num new-last-msg-num)))
(setq mh-msg-count (if mh-first-msg-num
(count-lines (point-min) (point-max))
0))
(setq mode-line-buffer-identification
(list (format "{%%b%s} %s msg%s"
(if mh-mode-line-annotation
(format "/%s" mh-mode-line-annotation)
"")
(if (zerop mh-msg-count)
"no"
(format "%d" mh-msg-count))
(if (zerop mh-msg-count)
"s"
(cond ((> mh-msg-count 1)
(format "s (%d-%d)" mh-first-msg-num
mh-last-msg-num))
(mh-first-msg-num
(format " (%d)" mh-first-msg-num))
("")))))))))
(defun mh-unmark-all-headers (remove-all-flags)
"Remove all '+' flags from the folder listing.
With non-nil argument REMOVE-ALL-FLAGS, remove all 'D', '^' and '%' flags too.
Optimized for speed (i.e., no regular expressions)."
(save-excursion
(let ((case-fold-search nil)
(last-line (1- (point-max)))
char)
(mh-first-msg)
(while (<= (point) last-line)
(forward-char mh-cmd-note)
(setq char (following-char))
(if (or (and remove-all-flags
(or (= char (aref mh-note-deleted 0))
(= char (aref mh-note-refiled 0))))
(= char (aref mh-note-cur 0)))
(progn
(delete-char 1)
(insert " ")))
(if remove-all-flags
(progn
(forward-char 1)
(if (= (following-char) (aref mh-note-seq 0))
(progn
(delete-char 1)
(insert " ")))))
(forward-line)))))
(defun mh-remove-cur-notation ()
"Remove old cur notation."
(let ((cur-msg (car (mh-seq-to-msgs 'cur))))
(save-excursion
(and cur-msg
(mh-goto-msg cur-msg t t)
(looking-at mh-scan-cur-msg-number-regexp)
(mh-notate nil ? mh-cmd-note)))))
(defun mh-remove-all-notation ()
"Remove all notations on all scan lines that MH-E introduces."
(save-excursion
(goto-char (point-min))
(while (not (eobp))
(mh-notate nil ? mh-cmd-note)
(when (eq (char-after (+ (point) mh-cmd-note 1)) (elt mh-note-seq 0))
(mh-notate nil ? (1+ mh-cmd-note)))
(forward-line))))
(defun mh-goto-cur-msg (&optional minimal-changes-flag)
"Position the cursor at the current message.
When optional argument MINIMAL-CHANGES-FLAG is non-nil, the function doesn't
recenter the folder buffer."
(let ((cur-msg (car (mh-seq-to-msgs 'cur))))
(cond ((and cur-msg
(mh-goto-msg cur-msg t t))
(unless minimal-changes-flag
(mh-notate nil mh-note-cur mh-cmd-note)
(mh-recenter 0)
(mh-maybe-show cur-msg)))
(t
(message "No current message")))))
(defun mh-process-or-undo-commands (folder)
"If FOLDER has outstanding commands, then either process or discard them.
Called by functions like `mh-sort-folder', so also invalidate show buffer."
(set-buffer folder)
(if (mh-outstanding-commands-p)
(if (or mh-do-not-confirm-flag
(y-or-n-p
"Process outstanding deletes and refiles (or lose them)? "))
(mh-process-commands folder)
(mh-undo-folder)))
(mh-update-unseen)
(mh-invalidate-show-buffer))
(defun mh-process-commands (folder)
"Process outstanding commands for FOLDER.
The value of `mh-folder-updated-hook' is a list of functions to be called,
with no arguments, before the commands are processed."
(message "Processing deletes and refiles for %s..." folder)
(set-buffer folder)
(with-mh-folder-updating (nil)
;; Run the hook while the lists are still valid
(run-hooks 'mh-folder-updated-hook)
;; Update the unseen sequence if it exists
(mh-update-unseen)
(let ((redraw-needed-flag nil))
;; Then refile messages
(mh-mapc #'(lambda (folder-msg-list)
(let ((dest-folder (symbol-name (car folder-msg-list)))
(msgs (cdr folder-msg-list)))
(setq redraw-needed-flag t)
(apply #'mh-exec-cmd
"refile" "-src" folder dest-folder
(mh-coalesce-msg-list msgs))
(mh-delete-scan-msgs msgs)))
mh-refile-list)
(setq mh-refile-list ())
;; Now delete messages
(cond (mh-delete-list
(setq redraw-needed-flag t)
(apply 'mh-exec-cmd "rmm" folder
(mh-coalesce-msg-list mh-delete-list))
(mh-delete-scan-msgs mh-delete-list)
(setq mh-delete-list nil)))
;; 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"))))
;; Redraw folder window if needed
(when (and (memq 'unthread mh-view-ops) redraw-needed-flag)
(mh-thread-inc folder (point-max))))
(and (buffer-file-name (get-buffer mh-show-buffer))
(not (file-exists-p (buffer-file-name (get-buffer mh-show-buffer))))
;; If "inc" were to put a new msg in this file,
;; we would not notice, so mark it invalid now.
(mh-invalidate-show-buffer))
(setq mh-seq-list (mh-read-folder-sequences mh-current-folder nil))
(mh-unmark-all-headers t)
(mh-notate-user-sequences)
(message "Processing deletes and refiles for %s...done" folder)))
(defun mh-update-unseen ()
"Synchronize the unseen sequence with MH.
Return non-nil iff the MH folder was set.
The value of `mh-unseen-updated-hook' is a list of functions to be called,
with no arguments, after the unseen sequence is updated."
(if mh-seen-list
(let* ((unseen-seq (mh-find-seq mh-unseen-seq))
(unseen-msgs (mh-seq-msgs unseen-seq)))
(if unseen-msgs
(progn
(mh-undefine-sequence mh-unseen-seq mh-seen-list)
(run-hooks 'mh-unseen-updated-hook)
(while mh-seen-list
(setq unseen-msgs (delq (car mh-seen-list) unseen-msgs))
(setq mh-seen-list (cdr mh-seen-list)))
(setcdr unseen-seq unseen-msgs)
t) ;since we set the folder
(setq mh-seen-list nil)))))
(defun mh-delete-scan-msgs (msgs)
"Delete the scan listing lines for MSGS."
(save-excursion
(while msgs
(when (mh-goto-msg (car msgs) t t)
(when (memq 'unthread mh-view-ops)
(mh-thread-forget-message (car msgs)))
(mh-delete-line 1))
(setq msgs (cdr msgs)))))
(defun mh-outstanding-commands-p ()
"Return non-nil if there are outstanding deletes or refiles."
(or mh-delete-list mh-refile-list))
(defun mh-coalesce-msg-list (messages)
"Give a list of MESSAGES, return a list of message number ranges.
Sort of the opposite of `mh-read-msg-list', which expands ranges.
Message lists passed to MH programs go through this so
command line arguments won't exceed system limits."
(let ((msgs (sort (copy-sequence messages) 'mh-greaterp))
(range-high nil)
(prev -1)
(ranges nil))
(while prev
(if range-high
(if (or (not (numberp prev))
(not (equal (car msgs) (1- prev))))
(progn ;non-sequential, flush old range
(if (eq prev range-high)
(setq ranges (cons range-high ranges))
(setq ranges (cons (format "%s-%s" prev range-high) ranges)))
(setq range-high nil))))
(or range-high
(setq range-high (car msgs))) ;start new or first range
(setq prev (car msgs))
(setq msgs (cdr msgs)))
ranges))
(defun mh-greaterp (msg1 msg2)
"Return the greater of two message indicators MSG1 and MSG2.
Strings are \"smaller\" than numbers.
Legal values are things like \"cur\", \"last\", 1, and 1820."
(if (numberp msg1)
(if (numberp msg2)
(> msg1 msg2)
t)
(if (numberp msg2)
nil
(string-lessp msg2 msg1))))
(defun mh-lessp (msg1 msg2)
"Return the lesser of two message indicators MSG1 and MSG2.
Strings are \"smaller\" than numbers.
Legal values are things like \"cur\", \"last\", 1, and 1820."
(not (mh-greaterp msg1 msg2)))
;;; Basic sequence handling
(defun mh-delete-seq-locally (seq)
"Remove MH-E's record of SEQ."
(let ((entry (mh-find-seq seq)))
(setq mh-seq-list (delq entry mh-seq-list))))
(defun mh-read-folder-sequences (folder save-refiles)
"Read and return the predefined sequences for a FOLDER.
If SAVE-REFILES is non-nil, then keep the sequences
that note messages to be refiled."
(let ((seqs ()))
(cond (save-refiles
(mh-mapc (function (lambda (seq) ; Save the refiling sequences
(if (mh-folder-name-p (mh-seq-name seq))
(setq seqs (cons seq seqs)))))
mh-seq-list)))
(save-excursion
(if (eq 0 (mh-exec-cmd-quiet nil "mark" folder "-list"))
(progn
;; look for name in line of form "cur: 4" or "myseq (private): 23"
(while (re-search-forward "^[^: ]+" nil t)
(setq seqs (cons (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-read-msg-list ()
"Return a list of message numbers from point to the end of the line.
Expands ranges into set of individual numbers."
(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)
(setq msgs (cons num msgs))
(setq num (1+ num)))))
((not (zerop num)) ;"pick" outputs "0" to mean no match
(setq msgs (cons num msgs)))))
msgs))
(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 mh-note-seq (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)
(eq name mh-previous-seq)
(mh-folder-name-p name)))
(defun mh-delete-msg-from-seq (message sequence &optional internal-flag)
"Delete MESSAGE from SEQUENCE.
MESSAGE defaults to displayed message. From Lisp, optional third arg
INTERNAL-FLAG non-nil means do not inform MH of the change."
(interactive (list (mh-get-msg-num t)
(mh-read-seq-default "Delete from" t)
nil))
(let ((entry (mh-find-seq sequence)))
(cond (entry
(mh-notate-if-in-one-seq message ? (1+ mh-cmd-note) sequence)
(if (not internal-flag)
(mh-undefine-sequence sequence (list message)))
(setcdr entry (delq message (mh-seq-msgs entry)))))))
(defun mh-undefine-sequence (seq msgs)
"Remove from the SEQ the list of MSGS."
(mh-exec-cmd "mark" mh-current-folder "-delete"
"-sequence" (symbol-name seq)
(mh-coalesce-msg-list msgs)))
(defun mh-define-sequence (seq msgs)
"Define the SEQ to contain the list of MSGS.
Do not mark pseudo-sequences or empty sequences.
Signals an error if SEQ is an illegal name."
(if (and msgs
(not (mh-folder-name-p seq)))
(save-excursion
(mh-exec-cmd-error nil "mark" mh-current-folder "-add" "-zero"
"-sequence" (symbol-name seq)
(mh-coalesce-msg-list msgs)))))
(defun mh-map-over-seqs (function seq-list)
"Apply FUNCTION to each sequence in SEQ-LIST.
The sequence name and the list of messages are passed as arguments."
(while seq-list
(funcall function
(mh-seq-name (car seq-list))
(mh-seq-msgs (car seq-list)))
(setq seq-list (cdr seq-list))))
(defun mh-notate-if-in-one-seq (msg character offset seq)
"Notate MSG.
The CHARACTER is placed at the given OFFSET from the beginning of the listing.
The notation is performed if the MSG is only in SEQ."
(let ((in-seqs (mh-seq-containing-msg msg nil)))
(if (and (eq seq (car in-seqs)) (null (cdr in-seqs)))
(mh-notate msg character offset))))
(defun mh-seq-containing-msg (msg &optional include-internal-flag)
"Return a list of the sequences containing MSG.
If INCLUDE-INTERNAL-FLAG non-nil, include MH-E internal sequences in list."
(let ((l mh-seq-list)
(seqs ()))
(while l
(and (memq msg (mh-seq-msgs (car l)))
(or include-internal-flag
(not (mh-internal-seq (mh-seq-name (car l)))))
(setq seqs (cons (mh-seq-name (car l)) seqs)))
(setq l (cdr l)))
seqs))
;;; User prompting commands.
(defun mh-read-msg-range (prompt)
"Read a list of blank-separated messages using the given PROMPT."
(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)))
(setq input (cons (car next) input))
(setq start (cdr next))))
(nreverse input)))
;;; Build the folder-mode keymap:
(suppress-keymap mh-folder-mode-map)
;; Use defalias to make sure the documented primary key bindings
;; appear in menu lists.
(defalias 'mh-alt-show 'mh-show)
(defalias 'mh-alt-refile-msg 'mh-refile-msg)
(defalias 'mh-alt-send 'mh-send)
(defalias 'mh-alt-visit-folder 'mh-visit-folder)
;; Save the `b' binding for a future `back'. Maybe?
(gnus-define-keys mh-folder-mode-map
" " mh-page-msg
"!" mh-refile-or-write-again
"," mh-header-display
"." mh-alt-show
">" mh-write-msg-to-file
"?" mh-help
"E" mh-extract-rejected-mail
"M" mh-modify
"\177" mh-previous-page
"\C-d" mh-delete-msg-no-motion
"\t" mh-next-button
[backtab] mh-prev-button
"\M-\t" mh-prev-button
"\e<" mh-first-msg
"\e>" mh-last-msg
"\ed" mh-redistribute
"\r" mh-show
"^" mh-alt-refile-msg
"c" mh-copy-msg
"d" mh-delete-msg
"e" mh-edit-again
"f" mh-forward
"g" mh-goto-msg
"i" mh-inc-folder
"k" mh-delete-subject
"l" mh-print-msg
"m" mh-alt-send
"n" mh-next-undeleted-msg
"o" mh-refile-msg
"p" mh-previous-undeleted-msg
"q" mh-quit
"r" mh-reply
"s" mh-send
"t" mh-toggle-showing
"u" mh-undo
"x" mh-execute-commands
"|" mh-pipe-msg)
(gnus-define-keys (mh-folder-map "F" mh-folder-mode-map)
"?" mh-prefix-help
"S" mh-sort-folder
"f" mh-alt-visit-folder
"i" mh-index-search
"k" mh-kill-folder
"l" mh-list-folders
"o" mh-alt-visit-folder
"p" mh-pack-folder
"r" mh-rescan-folder
"s" mh-search-folder
"u" mh-undo-folder
"v" mh-visit-folder)
(gnus-define-keys (mh-sequence-map "S" mh-folder-mode-map)
"?" mh-prefix-help
"d" mh-delete-msg-from-seq
"k" mh-delete-seq
"l" mh-list-sequences
"n" mh-narrow-to-seq
"p" mh-put-msg-in-seq
"s" mh-msg-is-in-seq
"w" mh-widen)
(gnus-define-keys (mh-thread-map "T" mh-folder-mode-map)
"?" mh-prefix-help
"t" mh-toggle-threads)
(gnus-define-keys (mh-limit-map "/" mh-folder-mode-map)
"?" mh-prefix-help
"s" mh-narrow-to-subject
"w" mh-widen)
(gnus-define-keys (mh-extract-map "X" mh-folder-mode-map)
"?" mh-prefix-help
"s" mh-store-msg ;shar
"u" mh-store-msg) ;uuencode
(gnus-define-keys (mh-digest-map "D" mh-folder-mode-map)
" " mh-page-digest
"?" mh-prefix-help
"\177" mh-page-digest-backwards
"b" mh-burst-digest)
(gnus-define-keys (mh-mime-map "K" mh-folder-mode-map)
"?" mh-prefix-help
"a" mh-mime-save-parts
"i" mh-folder-inline-mime-part
"o" mh-folder-save-mime-part
"v" mh-folder-toggle-mime-part
"\t" mh-next-button
[backtab] mh-prev-button
"\M-\t" mh-prev-button)
(cond
(mh-xemacs-flag
(define-key mh-folder-mode-map [button2] 'mh-show-mouse))
(t
(define-key mh-folder-mode-map [mouse-2] 'mh-show-mouse)))
;; "C-c /" prefix is used in mh-folder-mode by pgp.el and mailcrypt
;;; Help Messages
;;; If you add a new prefix, add appropriate text to the nil key.
;;;
;;; In general, messages are grouped logically. Taking the main commands for
;;; example, the first line is "ways to view messages," the second line is
;;; "things you can do with messages", and the third is "composing" messages.
;;;
;;; When adding a new prefix, ensure that the help message contains "what" the
;;; prefix is for. For example, if the word "folder" were not present in the
;;; `F' entry, it would not be clear what these commands operated upon.
(defvar mh-help-messages
'((nil "[i]nc, [.]show, [,]show all, [n]ext, [p]revious,\n"
"[d]elete, [o]refile, e[x]ecute,\n"
"[s]end, [r]eply.\n"
"Prefix characters:\n [F]older, [S]equence, MIME [K]eys, "
"[T]hread, / Limit, e[X]tract, [D]igest.")
(?F "[l]ist, [v]isit folder;\n"
"[t]hread; [s]earch; [i]ndexed search;\n"
"[p]ack; [S]ort; [r]escan; [k]ill")
(?S "[p]ut message in sequence, [n]arrow, [w]iden,\n"
"[s]equences, [l]ist,\n"
"[d]elete message from sequence, [k]ill sequence")
(?T "[t]oggle thread")
(?/ "Limit to [s]ubject; [w]iden")
(?X "un[s]har, [u]udecode message")
(?D "[b]urst digest")
(?K "[v]iew, [i]nline, [o]utput/save MIME part; save [a]ll parts; \n"
"[TAB] next; [SHIFT-TAB] previous"))
"Key binding cheat sheet.
This is an associative array which is used to show the most common commands.
The key is a prefix char. The value is one or more strings which are
concatenated together and displayed in the minibuffer if ? is pressed after
the prefix character. The special key nil is used to display the
non-prefixed commands.
The substitutions described in `substitute-command-keys' are performed as
well.")
;;; autoload the other MH-E parts
;;; mh-comp
(autoload 'mh-smail "mh-comp"
"Compose and send mail with the MH mail system.
This function is an entry point to MH-E, the Emacs front end
to the MH mail system.
See documentation of `\\[mh-send]' for more details on composing mail." t)
(autoload 'mh-smail-other-window "mh-comp"
"Compose and send mail in other window with the MH mail system.
This function is an entry point to MH-E, the Emacs front end
to the MH mail system.
See documentation of `\\[mh-send]' for more details on composing mail." t)
(autoload 'mh-edit-again "mh-comp"
"Clean-up a draft or a message previously sent and make it resendable.
Default is the current message.
The variable mh-new-draft-cleaned-headers specifies the headers to remove.
See also documentation for `\\[mh-send]' function." t)
(autoload 'mh-extract-rejected-mail "mh-comp"
"Extract a letter returned by the mail system and make it resendable.
Default is the current message. The variable mh-new-draft-cleaned-headers
gives the headers to clean out of the original message.
See also documentation for `\\[mh-send]' function." t)
(autoload 'mh-forward "mh-comp"
"Forward a message or message sequence. Defaults to displayed message.
If optional prefix argument provided, then prompt for the message sequence.
See also documentation for `\\[mh-send]' function." t)
(autoload 'mh-redistribute "mh-comp"
"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." t)
(autoload 'mh-send "mh-comp"
"Compose and send a letter.
The file named by `mh-comp-formfile' will be used as the form.
Do not call this function from outside MH-E; use \\[mh-smail] instead.
The letter is composed in mh-letter-mode; see its documentation for more
details. If `mh-compose-letter-function' is defined, it is called on the
draft and passed three arguments: to, subject, and cc." t)
(autoload 'mh-send-other-window "mh-comp"
"Compose and send a letter in another window.
Do not call this function from outside MH-E;
use \\[mh-smail-other-window] instead.
See also documentation for `\\[mh-send]' function." t)
(autoload 'mh-letter-mode "mh-comp"
"Mode for composing letters in MH-E.
For more details, type \\[describe-mode] while in MH-Letter mode." t)
;;; mh-funcs
(autoload 'mh-burst-digest "mh-funcs"
"Burst apart the current message, which should be a digest.
The message is replaced by its table of contents and the messages from the
digest are inserted into the folder after that message." t)
(autoload 'mh-copy-msg "mh-funcs"
"Copy to another FOLDER the specified MESSAGE(s) without deleting them.
Default is the displayed message. If optional prefix argument is
provided, then prompt for the message sequence." t)
(autoload 'mh-kill-folder "mh-funcs"
"Remove the current folder." t)
(autoload 'mh-list-folders "mh-funcs"
"List mail folders." t)
(autoload 'mh-pack-folder "mh-funcs"
"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." t)
(autoload 'mh-pipe-msg "mh-funcs"
"Pipe the current message through the given shell COMMAND.
If INCLUDE-HEADERS (prefix argument) is provided, send the entire message.
Otherwise just send the message's body without the headers." t)
(autoload 'mh-page-digest "mh-funcs"
"Advance displayed message to next digested message." t)
(autoload 'mh-page-digest-backwards "mh-funcs"
"Back up displayed message to previous digested message." t)
(autoload 'mh-print-msg "mh-funcs"
"Print MESSAGE(s) (default: displayed message) on printer.
If optional prefix argument provided, then prompt for the message sequence.
The variable mh-lpr-command-format is used to generate the print command.
The messages are formatted by mhl. See the variable mhl-formfile." t)
(autoload 'mh-sort-folder "mh-funcs"
"Sort the messages in the current folder by date.
Calls the MH program sortm to do the work.
The arguments in the list mh-sortm-args are passed to sortm
if this function is passed an argument." t)
(autoload 'mh-store-msg "mh-funcs"
"Store the file(s) contained in the current message into DIRECTORY.
The message can contain a shar file or uuencoded file.
Default directory is the last directory used, or initially the value of
mh-store-default-directory or the current directory." t)
(autoload 'mh-store-buffer "mh-funcs"
"Store the file(s) contained in the current buffer into DIRECTORY.
The buffer can contain a shar file or uuencoded file.
Default directory is the last directory used, or initially the value of
`mh-store-default-directory' or the current directory." t)
(autoload 'mh-help "mh-funcs"
"Display cheat sheet for MH-E commands in minibuffer." t)
(autoload 'mh-prefix-help "mh-funcs"
"Display cheat sheet for the commands of the current prefix in minibuffer."
t)
;;; mh-pick
(autoload 'mh-search-folder "mh-pick"
"Search FOLDER for messages matching a pattern.
Add the messages found to the sequence named `search'." t)
;;; mh-seq
(autoload 'mh-region-to-sequence "mh-seq"
"Define sequence 'region as the messages in selected region." t)
(autoload 'mh-delete-seq "mh-seq"
"Delete the SEQUENCE." t)
(autoload 'mh-list-sequences "mh-seq"
"List the sequences defined in FOLDER." t)
(autoload 'mh-msg-is-in-seq "mh-seq"
"Display the sequences that contain MESSAGE (default: displayed message)." t)
(autoload 'mh-narrow-to-seq "mh-seq"
"Restrict display of this folder to just messages in SEQUENCE
Use \\[mh-widen] to undo this command." t)
(autoload 'mh-put-msg-in-seq "mh-seq"
"Add MESSAGE(s) (default: displayed message) to SEQUENCE.
If optional prefix argument provided, then prompt for the message sequence." t)
(autoload 'mh-rename-seq "mh-seq"
"Rename SEQUENCE to have NEW-NAME." t)
(autoload 'mh-narrow-to-subject "mh-seq"
"Narrow to a sequence containing all following messages with same subject."
t)
(autoload 'mh-toggle-threads "mh-seq"
"Toggle threaded view of folder." t)
(autoload 'mh-delete-subject "mh-seq"
"Mark all following messages with same subject to be deleted." t)
;;; mh-speed
(autoload 'mh-folder-speedbar-buttons "mh-speed")
(autoload 'mh-show-speedbar-buttons "mh-speed")
(autoload 'mh-index-folder-speedbar-buttons "mh-speed")
(autoload 'mh-index-show-speedbar-buttons "mh-speed")
(autoload 'mh-letter-speedbar-buttons "mh-speed")
(dolist (mess '("^Cursor not pointing to message$"
"^There is no other window$"))
(add-to-list 'debug-ignored-errors mess))
(provide 'mh-e)
;;; Local Variables:
;;; sentence-end-double-space: nil
;;; End:
;;; mh-e.el ends here
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