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- Path: sparky!uunet!cs.utexas.edu!sun-barr!sh.wide!wnoc-kyo!kyu-cs!csis!wnoc-fukuoka-news!shiwasu!shiwasu!umerin
- From: umerin@mse.kyutech.ac.jp (Masanobu UMEDA)
- Subject: rmailsort.el
- Sender: news@shiwasu.isci.kyutech.ac.jp
- Organization: Department of Mechanical System Engineering, Kyutech, Japan
- Date: Tue, 26 Jan 1993 03:15:35 GMT
- Message-ID: <UMERIN.93Jan26121535@orchid.mse.kyutech.ac.jp>
- Reply-To: umerin@mse.kyutech.ac.jp
- Distribution: gnu
- Lines: 280
-
- Here is a new version of rmailsort.el that is a sorting extension to
- rmail mode. I hope this version is faster and eats less memory.
-
- ----------------------------------------------------------------------
- ;;; Rmail: sort messages
- ;; Copyright (C) 1990, 1992 Masanobu UMEDA (umerin@mse.kyutech.ac.jp)
- ;; $Header: rmailsort.el,v 1.4 93/01/26 12:11:29 umerin Locked $
-
- ;; This file is part of GNU Emacs.
-
- ;; 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. Refer to the GNU Emacs General Public
- ;; License for full details.
-
- ;; Everyone is granted permission to copy, modify and redistribute
- ;; GNU Emacs, but only under the conditions described in the
- ;; GNU Emacs General Public License. A copy of this license is
- ;; supposed to have been given to you along with GNU Emacs so you
- ;; can know your rights and responsibilities. It should be in a
- ;; file named COPYING. Among other things, the copyright notice
- ;; and this notice must be preserved on all copies.
-
- ;; I would like to thank bob_weiner@pts.mot.com and
- ;; bruno@yakima.inria.fr for their improvements.
-
- (provide 'rmailsort)
- (require 'rmail)
- (require 'sort)
-
- (autoload 'timezone-make-date-sortable "timezone")
-
- ;; GNUS compatible key bindings.
-
- (define-key rmail-mode-map "\C-c\C-s\C-d" 'rmail-sort-by-date)
- (define-key rmail-mode-map "\C-c\C-s\C-s" 'rmail-sort-by-subject)
- (define-key rmail-mode-map "\C-c\C-s\C-a" 'rmail-sort-by-author)
- (define-key rmail-mode-map "\C-c\C-s\C-r" 'rmail-sort-by-recipient)
- (define-key rmail-mode-map "\C-c\C-s\C-l" 'rmail-sort-by-lines)
-
- ;; Key binding may not be installed unless Rmail Summary mode is loaded.
- (if (boundp 'rmail-summary-mode-map)
- (progn
- (define-key rmail-summary-mode-map
- "\C-c\C-s\C-d" 'rmail-summary-sort-by-date)
- (define-key rmail-summary-mode-map
- "\C-c\C-s\C-s" 'rmail-summary-sort-by-subject)
- (define-key rmail-summary-mode-map
- "\C-c\C-s\C-a" 'rmail-summary-sort-by-author)
- (define-key rmail-summary-mode-map
- "\C-c\C-s\C-r" 'rmail-summary-sort-by-recipient)
- (define-key rmail-summary-mode-map
- "\C-c\C-s\C-l" 'rmail-summary-sort-by-lines)
- ))
-
-
- ;; Sorting messages in Rmail buffer
-
- (defun rmail-sort-by-date (reverse)
- "Sort messages of current Rmail file by date.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-messages reverse
- (function
- (lambda (msg)
- (rmail-make-date-sortable
- (rmail-fetch-field msg "Date"))))))
-
- (defun rmail-sort-by-subject (reverse)
- "Sort messages of current Rmail file by subject.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-messages reverse
- (function
- (lambda (msg)
- (let ((key (or (rmail-fetch-field msg "Subject") ""))
- (case-fold-search t))
- ;; Remove `Re:'
- (if (string-match "^\\(re:[ \t]+\\)*" key)
- (substring key (match-end 0)) key))))))
-
- (defun rmail-sort-by-author (reverse)
- "Sort messages of current Rmail file by author.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-messages reverse
- (function
- (lambda (msg)
- (downcase ;Canonical name
- (mail-strip-quoted-names
- (or (rmail-fetch-field msg "From")
- (rmail-fetch-field msg "Sender") "")))))))
-
- (defun rmail-sort-by-recipient (reverse)
- "Sort messages of current Rmail file by recipient.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-messages reverse
- (function
- (lambda (msg)
- (downcase ;Canonical name
- (mail-strip-quoted-names
- (or (rmail-fetch-field msg "To")
- (rmail-fetch-field msg "Apparently-To") "")
- ))))))
-
- (defun rmail-sort-by-lines (reverse)
- "Sort messages of current Rmail file by lines of the message.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- ;; Basic ideas by pinard@IRO.UMontreal.CA
- (rmail-sort-messages reverse
- (function
- (lambda (msg)
- (count-lines (rmail-msgbeg msgnum)
- (rmail-msgend msgnum))))))
-
- ;; Sorting messages in Rmail Summary buffer.
-
- (defun rmail-summary-sort-by-date (reverse)
- "Sort messages of current Rmail summary by date.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-from-summary (function rmail-sort-by-date) reverse))
-
- (defun rmail-summary-sort-by-subject (reverse)
- "Sort messages of current Rmail summary by subject.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-from-summary (function rmail-sort-by-subject) reverse))
-
- (defun rmail-summary-sort-by-author (reverse)
- "Sort messages of current Rmail summary by author.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-from-summary (function rmail-sort-by-author) reverse))
-
- (defun rmail-summary-sort-by-recipient (reverse)
- "Sort messages of current Rmail summary by recipient.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-from-summary (function rmail-sort-by-recipient) reverse))
-
- (defun rmail-summary-sort-by-lines (reverse)
- "Sort messages of current Rmail summary by lines of the message.
- If prefix argument REVERSE is non-nil, sort them in reverse order."
- (interactive "P")
- (rmail-sort-from-summary (function rmail-sort-by-lines) reverse))
-
-
- ;; Basic functions
-
- (defun rmail-sort-messages (reverse keyfun)
- "Sort messages of current Rmail file.
- If 1st argument REVERSE is non-nil, sort them in reverse order.
- 2nd argument KEYFUN is called with a message number, and should return a key."
- (let ((buffer-read-only nil)
- (predicate nil) ;< or string-lessp
- (sort-lists nil))
- (message "Finding sort keys...")
- (widen)
- (let ((msgnum 1))
- (while (>= rmail-total-messages msgnum)
- (setq sort-lists
- (cons (list (funcall keyfun msgnum) ;Make sorting key
- (eq rmail-current-message msgnum) ;True if current
- (aref rmail-message-vector msgnum)
- (aref rmail-message-vector (1+ msgnum)))
- sort-lists))
- (if (zerop (% msgnum 10))
- (message "Finding sort keys...%d" msgnum))
- (setq msgnum (1+ msgnum))))
- (or reverse (setq sort-lists (nreverse sort-lists)))
- ;; Decide predicate: < or string-lessp
- (if (numberp (car (car sort-lists))) ;Is a key numeric?
- (setq predicate (function <))
- (setq predicate (function string-lessp)))
- (setq sort-lists
- (sort sort-lists
- (function
- (lambda (a b)
- (funcall predicate (car a) (car b))))))
- (if reverse (setq sort-lists (nreverse sort-lists)))
- ;; Now we enter critical region. So, keyboard quit is disabled.
- (message "Reordering messages...")
- (let ((inhibit-quit t) ;Inhibit quit
- (current-message nil)
- (msgnum 1)
- (msginfo nil))
- ;; There's little hope that we can easily undo after that.
- (buffer-flush-undo (current-buffer))
- (goto-char (rmail-msgbeg 1))
- ;; To force update of all markers.
- (insert-before-markers ?Z)
- (backward-char 1)
- ;; Now reorder messages.
- (while sort-lists
- (setq msginfo (car sort-lists))
- ;; Swap two messages.
- (insert-buffer-substring
- (current-buffer) (nth 2 msginfo) (nth 3 msginfo))
- (delete-region (nth 2 msginfo) (nth 3 msginfo))
- ;; Is current message?
- (if (nth 1 msginfo)
- (setq current-message msgnum))
- (setq sort-lists (cdr sort-lists))
- (if (zerop (% msgnum 10))
- (message "Reordering messages...%d" msgnum))
- (setq msgnum (1+ msgnum)))
- ;; Delete the garbage inserted before.
- (delete-char 1)
- (setq quit-flag nil)
- (buffer-enable-undo)
- (rmail-set-message-counters)
- (rmail-show-message current-message))
- ))
-
- (defun rmail-sort-from-summary (sortfun reverse)
- "Sort Rmail messages from Summary buffer and update it after sorting."
- (pop-to-buffer rmail-buffer)
- (funcall sortfun reverse)
- (rmail-summary))
-
- (defun rmail-fetch-field (msg field)
- "Return the value of the header FIELD of MSG.
- Arguments are MSG and FIELD."
- (save-restriction
- (widen)
- (let ((next (rmail-msgend msg)))
- (goto-char (rmail-msgbeg msg))
- (narrow-to-region (if (search-forward "\n*** EOOH ***\n" next t)
- (point)
- (forward-line 1)
- (point))
- (progn (search-forward "\n\n" nil t) (point)))
- (mail-fetch-field field))))
-
- (defun rmail-make-date-sortable (date)
- "Make DATE sortable using the function string-lessp."
- ;; Assume the default time zone is GMT.
- (timezone-make-date-sortable date "GMT" "GMT"))
-
- ;; Copy of the function gnus-comparable-date in gnus.el version 3.13
- ;
- ;(defun rmail-make-date-sortable (date)
- ; "Make sortable string by string-lessp from DATE."
- ; (let ((month '(("JAN" . " 1")("FEB" . " 2")("MAR" . " 3")
- ; ("APR" . " 4")("MAY" . " 5")("JUN" . " 6")
- ; ("JUL" . " 7")("AUG" . " 8")("SEP" . " 9")
- ; ("OCT" . "10")("NOV" . "11")("DEC" . "12")))
- ; (date (or date "")))
- ; ;; Can understand the following styles:
- ; ;; (1) 14 Apr 89 03:20:12 GMT
- ; ;; (2) Fri, 17 Mar 89 4:01:33 GMT
- ; (if (string-match
- ; "\\([0-9]+\\) \\([^ ,]+\\) \\([0-9]+\\) \\([0-9:]+\\)" date)
- ; (concat
- ; ;; Year
- ; (substring date (match-beginning 3) (match-end 3))
- ; ;; Month
- ; (cdr
- ; (assoc
- ; (upcase (substring date (match-beginning 2) (match-end 2))) month))
- ; ;; Day
- ; (format "%2d" (string-to-int
- ; (substring date
- ; (match-beginning 1) (match-end 1))))
- ; ;; Time
- ; (substring date (match-beginning 4) (match-end 4)))
- ; ;; Cannot understand DATE string.
- ; date
- ; )
- ; ))
- --
- Masanobu UMEDA
- umerin@mse.kyutech.ac.jp
- Faculty of Computer Science and System Engineering
- Kyushu Institute of Technology
-