;;; rmailsort.el --- Rmail: sort messages.
-;; Copyright (C) 1990 Free Software Foundation, Inc.
+;; Copyright (C) 1990, 1993 Free Software Foundation, Inc.
+;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
+;; Version: $Header: rmailsort.el,v 1.6 93/05/26 22:24:42 umerin Exp $
;; Keywords: mail
;; This file is part of GNU Emacs.
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;;; Commentary:
+
+;; LCD Archive Entry:
+;; rmailsort|Masanobu UMEDA|umerin@mse.kyutech.ac.jp|
+;; Rmail: sort messages.|
+;; $Date: 93/05/26 22:24:42 $|$Revision: 1.6 $|~/misc/rmailsort.el.Z|
+
;;; Code:
(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-c" 'rmail-sort-by-correspondent)
-(define-key rmail-mode-map "\C-c\C-s\C-l" 'rmail-sort-by-size-lines)
+(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-c" 'rmail-summary-sort-by-correspondent)
+ (define-key rmail-summary-mode-map
+ "\C-c\C-s\C-l" 'rmail-summary-sort-by-lines)
+ ))
+
+\f
+;; Sorting messages in Rmail buffer
(defun rmail-sort-by-date (reverse)
"Sort messages of current Rmail file by date.
(rmail-sort-messages reverse
(function
(lambda (msg)
- (rmail-sortable-date-string
+ (rmail-make-date-sortable
(rmail-fetch-field msg "Date"))))))
(defun rmail-sort-by-subject (reverse)
(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") "")))))))
(defun rmail-sort-by-recipient (reverse)
"Sort messages of current Rmail file by recipient.
(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") "")
+ ))))))
(defun rmail-sort-by-correspondent (reverse)
"Sort messages of current Rmail file by other correspondent.
(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))
-
-(defun rmail-sort-by-size-lines (reverse)
- "Sort messages of current Rmail file by message size.
+ (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))
+
+(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")
(rmail-sort-messages reverse
(function
(lambda (msg)
- (format "%9d"
- (count-lines (rmail-msgbeg msgnum)
- (rmail-msgend msgnum)))))))
+ (count-lines (rmail-msgbeg msgnum)
+ (rmail-msgend msgnum))))))
\f
+;; 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-sort-messages (reverse keyfunc)
+(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-correspondent (reverse)
+ "Sort messages of current Rmail summary by other correspondent.
+If prefix argument REVERSE is non-nil, sort them in reverse order."
+ (interactive "P")
+ (rmail-sort-from-summary (function rmail-sort-by-correspondent) 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))
+
+\f
+;; Basic functions
+
+(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."
- (or (eq major-mode 'rmail-mode)
- (error "Current buffer not in Rmail mode"))
+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 (cons (funcall keyfunc msgnum) ;A sort key.
- (buffer-substring
- (rmail-msgbeg msgnum) (rmail-msgend msgnum)))
+ (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)
- (string-lessp (car a) (car b))))))
+ (funcall predicate (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))
- (let ((msgnum 1))
+ ;; 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
- (insert (cdr (car sort-lists)))
- (if (zerop (% msgnum 10))
- (message "Reordering buffer...%d" msgnum))
+ (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))
- (setq msgnum (1+ msgnum))))
- (rmail-set-message-counters)
- (rmail-show-message 1)))
+ (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 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")
- ("JANUARY" . " 1") ("FEBRUARY" . " 2")
- ("MARCH" . " 3") ("APRIL" . " 4")
- ("MAY" . " 5") ("JUNE" . " 6")
- ("JULY" . " 7") ("AUGUST" . " 8")
- ("SEPTEMBER" " 9") ("OCTOBER" . "10")
- ("NOVEMBER" "11") ("DECEMBER" . "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
- (rmail-date-full-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)))
-
- ;; Handles this format Fri May 10 21:51:55 1991
- (if (string-match
- " \\([a-z][a-z][a-z]\\) +\\([0-9]+\\) \\([0-9:]+\\) \\([0-9]+\\)" date)
- (concat
- ;; Year
- (rmail-date-full-year
- (substring date (match-beginning 4) (match-end 4)))
- ;; Month
- (cdr
- (assoc
- (upcase (substring date (match-beginning 1) (match-end 1))) month))
- ;; Day
- (format "%2d" (string-to-int
- (substring date
- (match-beginning 2) (match-end 2))))
- ;; Time
- (substring date (match-beginning 3) (match-end 3)))
-
- ;; Cannot understand DATE string.
- date))))
-
-(defun rmail-date-full-year (year-string)
- (if (<= (length year-string) 2)
- (concat "19" year-string)
- year-string))
+(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
+; )
+; ))
(provide 'rmailsort)
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