-;;; Rmail: sort messages.
-;; Copyright (C) 1990 Masanobu UMEDA
-;; umerin@tc.Nagasaki.GO.JP?
+;;; rmailsort.el --- Rmail: sort messages
+
+;; Copyright (C) 1990, 1993, 1994, 2001 Free Software Foundation, Inc.
+
+;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
+;; Maintainer: FSF
+;; 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. 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.
+;; 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:
+
+;;; Code:
-(provide 'rmailsort)
-(require 'rmail)
(require 'sort)
-;; 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)
+;; For rmail-select-summary
+(require 'rmail)
+
+(autoload 'timezone-make-date-sortable "timezone")
+;; Sorting messages in Rmail buffer
+
+;;;###autoload
(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."
(rmail-sort-messages reverse
(function
(lambda (msg)
- (rmail-sortable-date-string
+ (rmail-make-date-sortable
(rmail-fetch-field msg "Date"))))))
+;;;###autoload
(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."
(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))))))
+ (if (string-match "^\\(re:[ \t]*\\)*" key)
+ (substring key (match-end 0))
+ key))))))
+;;;###autoload
(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."
(rmail-sort-messages reverse
(function
(lambda (msg)
- (mail-strip-quoted-names
- (or (rmail-fetch-field msg "From")
- (rmail-fetch-field msg "Sender") ""))))))
+ (downcase ;Canonical name
+ (mail-strip-quoted-names
+ (or (rmail-fetch-field msg "From")
+ (rmail-fetch-field msg "Sender") "")))))))
+;;;###autoload
(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."
(rmail-sort-messages reverse
(function
(lambda (msg)
- (mail-strip-quoted-names
- (or (rmail-fetch-field msg "To")
- (rmail-fetch-field msg "Apparently-To") "")
- )))))
+ (downcase ;Canonical name
+ (mail-strip-quoted-names
+ (or (rmail-fetch-field msg "To")
+ (rmail-fetch-field msg "Apparently-To") "")
+ ))))))
+;;;###autoload
+(defun rmail-sort-by-correspondent (reverse)
+ "Sort messages of current Rmail file by other correspondent.
+If prefix argument REVERSE is non-nil, sort them in reverse order."
+ (interactive "P")
+ (rmail-sort-messages reverse
+ (function
+ (lambda (msg)
+ (rmail-select-correspondent
+ msg
+ '("From" "Sender" "To" "Apparently-To"))))))
+
+(defun rmail-select-correspondent (msg fields)
+ (let ((ans ""))
+ (while (and fields (string= ans ""))
+ (setq ans
+ (rmail-dont-reply-to
+ (mail-strip-quoted-names
+ (or (rmail-fetch-field msg (car fields)) ""))))
+ (setq fields (cdr fields)))
+ ans))
+
+;;;###autoload
+(defun rmail-sort-by-lines (reverse)
+ "Sort messages of current Rmail file by number of lines.
+If prefix argument REVERSE is non-nil, sort them in reverse order."
+ (interactive "P")
+ (rmail-sort-messages reverse
+ (function
+ (lambda (msg)
+ (count-lines (rmail-msgbeg msg)
+ (rmail-msgend msg))))))
+
+;;;###autoload
+(defun rmail-sort-by-labels (reverse labels)
+ "Sort messages of current Rmail file by labels.
+If prefix argument REVERSE is non-nil, sort them in reverse order.
+KEYWORDS is a comma-separated list of labels."
+ (interactive "P\nsSort by labels: ")
+ (or (string-match "[^ \t]" labels)
+ (error "No labels specified"))
+ (setq labels (concat (substring labels (match-beginning 0)) ","))
+ (let (labelvec)
+ (while (string-match "[ \t]*,[ \t]*" labels)
+ (setq labelvec (cons
+ (concat ", ?\\("
+ (substring labels 0 (match-beginning 0))
+ "\\),")
+ labelvec))
+ (setq labels (substring labels (match-end 0))))
+ (setq labelvec (apply 'vector (nreverse labelvec)))
+ (rmail-sort-messages reverse
+ (function
+ (lambda (msg)
+ (let ((n 0))
+ (while (and (< n (length labelvec))
+ (not (rmail-message-labels-p
+ msg (aref labelvec n))))
+ (setq n (1+ n)))
+ n))))))
\f
+;; Basic functions
-(defun rmail-sort-messages (reverse keyfunc)
+(defun rmail-sort-messages (reverse keyfun)
"Sort messages of current Rmail file.
-1st argument REVERSE is non-nil, sort them in reverse order.
-2nd argument KEYFUNC is called with message number, and should return a key."
- (let ((buffer-read-only nil)
- (sort-lists nil))
- (message "Finding sort keys...")
- (widen)
- (let ((msgnum 1))
- (while (>= rmail-total-messages msgnum)
- (setq sort-lists
- (cons (cons (funcall keyfunc msgnum) ;A sort key.
- (buffer-substring
- (rmail-msgbeg msgnum) (rmail-msgend msgnum)))
- sort-lists))
- (setq msgnum (1+ msgnum))))
- (or reverse (setq sort-lists (nreverse sort-lists)))
- (setq sort-lists
- (sort sort-lists
- (function
- (lambda (a b)
- (string-lessp (car a) (car b))))))
- (if reverse (setq sort-lists (nreverse sort-lists)))
- (message "Reordering buffer...")
- (delete-region (rmail-msgbeg 1) (rmail-msgend rmail-total-messages))
- (while sort-lists
- (insert (cdr (car sort-lists)))
- (setq sort-lists (cdr sort-lists)))
- (rmail-set-message-counters)
- (rmail-show-message)
- ))
+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."
+ (save-current-buffer
+ ;; If we are in a summary buffer, operate on the Rmail buffer.
+ (if (eq major-mode 'rmail-summary-mode)
+ (set-buffer rmail-buffer))
+ (let ((buffer-read-only nil)
+ (point-offset (- (point) (point-min)))
+ (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-disable-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)
+ (goto-char (+ point-offset (point-min)))
+ (if (rmail-summary-exists)
+ (rmail-select-summary
+ (rmail-update-summary)))))))
(defun rmail-fetch-field (msg field)
- "Return the value of the header field FIELD of MSG.
+ "Return the value of the header FIELD of MSG.
Arguments are MSG and FIELD."
- (let ((next (rmail-msgend msg)))
- (save-restriction
+ (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)
(progn (search-forward "\n\n" nil t) (point)))
(mail-fetch-field field))))
-;; Copy of the function gnus-comparable-date in gnus.el
-
-(defun rmail-sortable-date-string (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 (discarding century)
- (substring (substring date (match-beginning 3) (match-end 3)) -2)
- ;; 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
- )
- ))
+(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"))
+
+(provide 'rmailsort)
+
+;;; arch-tag: 0d90896b-0c35-46ac-b240-38be5ada2360
+;;; rmailsort.el ends here