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d501f516 ER |
1 | ;;; undigest.el --- digest-cracking support for the RMAIL mail reader |
2 | ||
9596811a | 3 | ;; Copyright (C) 1985, 1986, 1994, 1996 Free Software Foundation, Inc. |
58142744 | 4 | |
e5167999 | 5 | ;; Maintainer: FSF |
d7b4d18f | 6 | ;; Keywords: mail |
e5167999 | 7 | |
0d20f9a0 JB |
8 | ;; This file is part of GNU Emacs. |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
e5167999 | 12 | ;; the Free Software Foundation; either version 2, or (at your option) |
0d20f9a0 JB |
13 | ;; any later version. |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
0d20f9a0 | 24 | |
e5167999 ER |
25 | ;;; Commentary: |
26 | ||
27 | ;; See Internet RFC 934 | |
28 | ||
29 | ;;; Code: | |
0d20f9a0 | 30 | |
4fe9b563 KH |
31 | (require 'rmail) |
32 | ||
0d20f9a0 JB |
33 | (defun undigestify-rmail-message () |
34 | "Break up a digest message into its constituent messages. | |
35 | Leaves original message, deleted, before the undigestified messages." | |
36 | (interactive) | |
37 | (widen) | |
38 | (let ((buffer-read-only nil) | |
39 | (msg-string (buffer-substring (rmail-msgbeg rmail-current-message) | |
40 | (rmail-msgend rmail-current-message)))) | |
41 | (goto-char (rmail-msgend rmail-current-message)) | |
42 | (narrow-to-region (point) (point)) | |
43 | (insert msg-string) | |
44 | (narrow-to-region (point-min) (1- (point-max)))) | |
45 | (let ((error t) | |
46 | (buffer-read-only nil)) | |
47 | (unwind-protect | |
48 | (progn | |
49 | (save-restriction | |
50 | (goto-char (point-min)) | |
51 | (delete-region (point-min) | |
52 | (progn (search-forward "\n*** EOOH ***\n") | |
53 | (point))) | |
54 | (insert "\^_\^L\n0, unseen,,\n*** EOOH ***\n") | |
55 | (narrow-to-region (point) | |
56 | (point-max)) | |
57 | (let* ((fill-prefix "") | |
58 | (case-fold-search t) | |
5d2e6ef5 | 59 | start |
0d20f9a0 JB |
60 | (digest-name |
61 | (mail-strip-quoted-names | |
62 | (or (save-restriction | |
63 | (search-forward "\n\n") | |
5d2e6ef5 | 64 | (setq start (point)) |
0d20f9a0 JB |
65 | (narrow-to-region (point-min) (point)) |
66 | (goto-char (point-max)) | |
67 | (or (mail-fetch-field "Reply-To") | |
68 | (mail-fetch-field "To") | |
69 | (mail-fetch-field "Apparently-To") | |
70 | (mail-fetch-field "From"))) | |
67977ece | 71 | (error "Message is not a digest--bad header"))))) |
0d20f9a0 JB |
72 | (save-excursion |
73 | (goto-char (point-max)) | |
74 | (skip-chars-backward " \t\n") | |
5d2e6ef5 | 75 | (let (found) |
0d20f9a0 | 76 | ;; compensate for broken un*x digestifiers. Sigh Sigh. |
5d2e6ef5 | 77 | (while (and (> (point) start) (not found)) |
0d20f9a0 | 78 | (forward-line -1) |
0d20f9a0 JB |
79 | (if (looking-at (concat "End of.*Digest.*\n" |
80 | (regexp-quote "*********") "*" | |
81 | "\\(\n------*\\)*")) | |
82 | (setq found t))) | |
67977ece RS |
83 | (if (not found) |
84 | (error "Message is not a digest--no end line")))) | |
0d20f9a0 JB |
85 | (re-search-forward (concat "^" (make-string 55 ?-) "-*\n*")) |
86 | (replace-match "\^_\^L\n0, unseen,,\n*** EOOH ***\n") | |
87 | (save-restriction | |
88 | (narrow-to-region (point) | |
89 | (progn (search-forward "\n\n") | |
90 | (point))) | |
91 | (if (mail-fetch-field "To") nil | |
92 | (goto-char (point-min)) | |
93 | (insert "To: " digest-name "\n"))) | |
94 | (while (re-search-forward | |
95 | (concat "\n\n" (make-string 27 ?-) "-*\n*") | |
96 | nil t) | |
97 | (replace-match "\n\n\^_\^L\n0, unseen,,\n*** EOOH ***\n") | |
98 | (save-restriction | |
99 | (if (looking-at "End ") | |
100 | (insert "To: " digest-name "\n\n") | |
101 | (narrow-to-region (point) | |
102 | (progn (search-forward "\n\n" | |
103 | nil 'move) | |
104 | (point)))) | |
369718f8 RS |
105 | (if (mail-fetch-field "To") |
106 | nil | |
0d20f9a0 | 107 | (goto-char (point-min)) |
369718f8 RS |
108 | (insert "To: " digest-name "\n"))) |
109 | ;; Digestifiers may insert `- ' on lines that start with `-'. | |
110 | ;; Undo that. | |
111 | (save-excursion | |
112 | (goto-char (point-min)) | |
113 | (if (re-search-forward | |
114 | "\n\n----------------------------*\n*" | |
115 | nil t) | |
116 | (let ((end (point-marker))) | |
117 | (goto-char (point-min)) | |
118 | (while (re-search-forward "^- " end t) | |
119 | (delete-char -2))))) | |
120 | ))) | |
0d20f9a0 JB |
121 | (setq error nil) |
122 | (message "Message successfully undigestified") | |
123 | (let ((n rmail-current-message)) | |
124 | (rmail-forget-messages) | |
125 | (rmail-show-message n) | |
4fe9b563 KH |
126 | (rmail-delete-forward) |
127 | (if (rmail-summary-exists) | |
128 | (rmail-select-summary | |
129 | (rmail-update-summary))))) | |
0d20f9a0 JB |
130 | (cond (error |
131 | (narrow-to-region (point-min) (1+ (point-max))) | |
132 | (delete-region (point-min) (point-max)) | |
133 | (rmail-show-message rmail-current-message)))))) | |
134 | ||
9f606031 KH |
135 | (defun unforward-rmail-message () |
136 | "Extract a forwarded message from the containing message. | |
137 | This puts the forwarded message into a separate rmail message | |
138 | following the containing message." | |
139 | (interactive) | |
d614dd91 RS |
140 | ;; Don't use save-excursion because we don't want to restore point |
141 | ;; in the case where we do not switch buffers. | |
142 | (let ((obuf (current-buffer))) | |
143 | (unwind-protect | |
144 | (progn | |
145 | ;; If we are in a summary buffer, switch to the Rmail buffer. | |
146 | (if (local-variable-p 'rmail-buffer) | |
147 | (set-buffer rmail-buffer)) | |
148 | (narrow-to-region (rmail-msgbeg rmail-current-message) | |
149 | (rmail-msgend rmail-current-message)) | |
150 | (goto-char (point-min)) | |
151 | (let (beg end (buffer-read-only nil) msg-string who-forwarded-it) | |
152 | (setq who-forwarded-it (mail-fetch-field "From")) | |
153 | (if (re-search-forward "^----" nil t) | |
154 | nil | |
155 | (error "No forwarded message")) | |
156 | (forward-line 1) | |
157 | (setq beg (point)) | |
158 | (if (re-search-forward "^----" nil t) | |
159 | (setq end (match-beginning 0)) | |
160 | (error "No terminator for forwarded message")) | |
161 | (widen) | |
162 | (setq msg-string (buffer-substring beg end)) | |
163 | (goto-char (rmail-msgend rmail-current-message)) | |
164 | (narrow-to-region (point) (point)) | |
165 | (insert "\^_\^L\n0, unseen,,\n*** EOOH ***\n") | |
166 | (narrow-to-region (point) (point)) | |
167 | (insert "Forwarded-by: " who-forwarded-it "\n") | |
168 | (insert msg-string) | |
169 | (goto-char (point-min)) | |
170 | (while (not (eobp)) | |
171 | (if (looking-at "- ") | |
172 | (delete-region (point) (+ 2 (point)))) | |
173 | (forward-line 1)) | |
174 | (let ((n rmail-current-message)) | |
175 | (rmail-forget-messages) | |
176 | (rmail-show-message n) | |
177 | (if (rmail-summary-exists) | |
178 | (rmail-select-summary | |
179 | (rmail-update-summary)))))) | |
180 | (set-buffer obuf)))) | |
9f606031 | 181 | |
d501f516 | 182 | ;;; undigest.el ends here |