|
0
|
1 ;;; rmailsort.el --- Rmail: sort messages.
|
|
|
2
|
|
|
3 ;; Copyright (C) 1990, 1993 Free Software Foundation, Inc.
|
|
|
4
|
|
|
5 ;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
|
|
|
6 ;; Version: !Header: /home/fsf/rms/e19/lisp/RCS/rmailsort.el,v 1.16 1993/11/24 08:08:56 rms Exp !
|
|
|
7 ;; Keywords: mail
|
|
|
8
|
|
|
9 ;; This file is part of XEmacs.
|
|
|
10
|
|
|
11 ;; XEmacs is free software; you can redistribute it and/or modify it
|
|
|
12 ;; under the terms of the GNU General Public License as published by
|
|
|
13 ;; the Free Software Foundation; either version 2, or (at your option)
|
|
|
14 ;; any later version.
|
|
|
15
|
|
|
16 ;; XEmacs is distributed in the hope that it will be useful, but
|
|
|
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
19 ;; General Public License for more details.
|
|
|
20
|
|
|
21 ;; You should have received a copy of the GNU General Public License
|
|
16
|
22 ;; along with XEmacs; see the file COPYING. If not, write to the
|
|
|
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
24 ;; Boston, MA 02111-1307, USA.
|
|
0
|
25
|
|
|
26 ;;; Code:
|
|
|
27
|
|
|
28 (require 'sort)
|
|
|
29
|
|
|
30 (autoload 'timezone-make-date-sortable "timezone")
|
|
|
31
|
|
|
32 ;; Sorting messages in Rmail buffer
|
|
|
33
|
|
|
34 (defun rmail-sort-by-date (reverse)
|
|
|
35 "Sort messages of current Rmail file by date.
|
|
|
36 If prefix argument REVERSE is non-nil, sort them in reverse order."
|
|
|
37 (interactive "P")
|
|
|
38 (rmail-sort-messages reverse
|
|
|
39 (function
|
|
|
40 (lambda (msg)
|
|
|
41 (rmail-make-date-sortable
|
|
|
42 (rmail-fetch-field msg "Date"))))))
|
|
|
43
|
|
|
44 (defun rmail-sort-by-subject (reverse)
|
|
|
45 "Sort messages of current Rmail file by subject.
|
|
|
46 If prefix argument REVERSE is non-nil, sort them in reverse order."
|
|
|
47 (interactive "P")
|
|
|
48 (rmail-sort-messages reverse
|
|
|
49 (function
|
|
|
50 (lambda (msg)
|
|
|
51 (let ((key (or (rmail-fetch-field msg "Subject") ""))
|
|
|
52 (case-fold-search t))
|
|
|
53 ;; Remove `Re:'
|
|
|
54 (if (string-match "^\\(re:[ \t]+\\)*" key)
|
|
|
55 (substring key (match-end 0)) key))))))
|
|
|
56
|
|
|
57 (defun rmail-sort-by-author (reverse)
|
|
|
58 "Sort messages of current Rmail file by author.
|
|
|
59 If prefix argument REVERSE is non-nil, sort them in reverse order."
|
|
|
60 (interactive "P")
|
|
|
61 (rmail-sort-messages reverse
|
|
|
62 (function
|
|
|
63 (lambda (msg)
|
|
|
64 (downcase ;Canonical name
|
|
|
65 (mail-strip-quoted-names
|
|
|
66 (or (rmail-fetch-field msg "From")
|
|
|
67 (rmail-fetch-field msg "Sender") "")))))))
|
|
|
68
|
|
|
69 (defun rmail-sort-by-recipient (reverse)
|
|
|
70 "Sort messages of current Rmail file by recipient.
|
|
|
71 If prefix argument REVERSE is non-nil, sort them in reverse order."
|
|
|
72 (interactive "P")
|
|
|
73 (rmail-sort-messages reverse
|
|
|
74 (function
|
|
|
75 (lambda (msg)
|
|
|
76 (downcase ;Canonical name
|
|
|
77 (mail-strip-quoted-names
|
|
|
78 (or (rmail-fetch-field msg "To")
|
|
|
79 (rmail-fetch-field msg "Apparently-To") "")
|
|
|
80 ))))))
|
|
|
81
|
|
|
82 (defun rmail-sort-by-correspondent (reverse)
|
|
|
83 "Sort messages of current Rmail file by other correspondent.
|
|
|
84 If prefix argument REVERSE is non-nil, sort them in reverse order."
|
|
|
85 (interactive "P")
|
|
|
86 (rmail-sort-messages reverse
|
|
|
87 (function
|
|
|
88 (lambda (msg)
|
|
|
89 (rmail-select-correspondent
|
|
|
90 msg
|
|
|
91 '("From" "Sender" "To" "Apparently-To"))))))
|
|
|
92
|
|
|
93 (defun rmail-select-correspondent (msg fields)
|
|
|
94 (let ((ans ""))
|
|
|
95 (while (and fields (string= ans ""))
|
|
|
96 (setq ans
|
|
|
97 (rmail-dont-reply-to
|
|
|
98 (mail-strip-quoted-names
|
|
|
99 (or (rmail-fetch-field msg (car fields)) ""))))
|
|
|
100 (setq fields (cdr fields)))
|
|
|
101 ans))
|
|
|
102
|
|
|
103 (defun rmail-sort-by-lines (reverse)
|
|
|
104 "Sort messages of current Rmail file by number of lines.
|
|
|
105 If prefix argument REVERSE is non-nil, sort them in reverse order."
|
|
|
106 (interactive "P")
|
|
|
107 (rmail-sort-messages reverse
|
|
|
108 (function
|
|
|
109 (lambda (msg)
|
|
|
110 (count-lines (rmail-msgbeg msgnum)
|
|
|
111 (rmail-msgend msgnum))))))
|
|
|
112
|
|
|
113 ;; Basic functions
|
|
|
114
|
|
|
115 (defun rmail-sort-messages (reverse keyfun)
|
|
|
116 "Sort messages of current Rmail file.
|
|
|
117 If 1st argument REVERSE is non-nil, sort them in reverse order.
|
|
|
118 2nd argument KEYFUN is called with a message number, and should return a key."
|
|
|
119 (save-excursion
|
|
|
120 ;; If we are in a summary buffer, operate on the Rmail buffer.
|
|
|
121 (if (eq major-mode 'rmail-summary-mode)
|
|
|
122 (set-buffer rmail-buffer))
|
|
|
123 (let ((buffer-read-only nil)
|
|
|
124 (predicate nil) ;< or string-lessp
|
|
|
125 (sort-lists nil))
|
|
|
126 (message "Finding sort keys...")
|
|
|
127 (widen)
|
|
|
128 (let ((msgnum 1))
|
|
|
129 (while (>= rmail-total-messages msgnum)
|
|
|
130 (setq sort-lists
|
|
|
131 (cons (list (funcall keyfun msgnum) ;Make sorting key
|
|
|
132 (eq rmail-current-message msgnum) ;True if current
|
|
|
133 (aref rmail-message-vector msgnum)
|
|
|
134 (aref rmail-message-vector (1+ msgnum)))
|
|
|
135 sort-lists))
|
|
|
136 (if (zerop (% msgnum 10))
|
|
|
137 (message "Finding sort keys...%d" msgnum))
|
|
|
138 (setq msgnum (1+ msgnum))))
|
|
|
139 (or reverse (setq sort-lists (nreverse sort-lists)))
|
|
|
140 ;; Decide predicate: < or string-lessp
|
|
|
141 (if (numberp (car (car sort-lists))) ;Is a key numeric?
|
|
|
142 (setq predicate (function <))
|
|
|
143 (setq predicate (function string-lessp)))
|
|
|
144 (setq sort-lists
|
|
|
145 (sort sort-lists
|
|
|
146 (function
|
|
|
147 (lambda (a b)
|
|
|
148 (funcall predicate (car a) (car b))))))
|
|
|
149 (if reverse (setq sort-lists (nreverse sort-lists)))
|
|
|
150 ;; Now we enter critical region. So, keyboard quit is disabled.
|
|
|
151 (message "Reordering messages...")
|
|
|
152 (let ((inhibit-quit t) ;Inhibit quit
|
|
|
153 (current-message nil)
|
|
|
154 (msgnum 1)
|
|
|
155 (msginfo nil))
|
|
|
156 ;; There's little hope that we can easily undo after that.
|
|
|
157 (buffer-disable-undo (current-buffer))
|
|
|
158 (goto-char (rmail-msgbeg 1))
|
|
|
159 ;; To force update of all markers.
|
|
|
160 (insert-before-markers ?Z)
|
|
|
161 (backward-char 1)
|
|
|
162 ;; Now reorder messages.
|
|
|
163 (while sort-lists
|
|
|
164 (setq msginfo (car sort-lists))
|
|
|
165 ;; Swap two messages.
|
|
|
166 (insert-buffer-substring
|
|
|
167 (current-buffer) (nth 2 msginfo) (nth 3 msginfo))
|
|
|
168 (delete-region (nth 2 msginfo) (nth 3 msginfo))
|
|
|
169 ;; Is current message?
|
|
|
170 (if (nth 1 msginfo)
|
|
|
171 (setq current-message msgnum))
|
|
|
172 (setq sort-lists (cdr sort-lists))
|
|
|
173 (if (zerop (% msgnum 10))
|
|
|
174 (message "Reordering messages...%d" msgnum))
|
|
|
175 (setq msgnum (1+ msgnum)))
|
|
|
176 ;; Delete the garbage inserted before.
|
|
|
177 (delete-char 1)
|
|
|
178 (setq quit-flag nil)
|
|
|
179 (buffer-enable-undo)
|
|
|
180 (rmail-set-message-counters)
|
|
|
181 (rmail-show-message current-message)))))
|
|
|
182
|
|
|
183 (defun rmail-fetch-field (msg field)
|
|
|
184 "Return the value of the header FIELD of MSG.
|
|
|
185 Arguments are MSG and FIELD."
|
|
|
186 (save-restriction
|
|
|
187 (widen)
|
|
|
188 (let ((next (rmail-msgend msg)))
|
|
|
189 (goto-char (rmail-msgbeg msg))
|
|
|
190 (narrow-to-region (if (search-forward "\n*** EOOH ***\n" next t)
|
|
|
191 (point)
|
|
|
192 (forward-line 1)
|
|
|
193 (point))
|
|
|
194 (progn (search-forward "\n\n" nil t) (point)))
|
|
|
195 (mail-fetch-field field))))
|
|
|
196
|
|
|
197 (defun rmail-make-date-sortable (date)
|
|
|
198 "Make DATE sortable using the function string-lessp."
|
|
|
199 ;; Assume the default time zone is GMT.
|
|
|
200 (timezone-make-date-sortable date "GMT" "GMT"))
|
|
|
201
|
|
|
202 (provide 'rmailsort)
|
|
|
203
|
|
|
204 ;;; rmailsort.el ends here
|
