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d501f516 ER |
1 | ;;; undigest.el --- digest-cracking support for the RMAIL mail reader |
2 | ||
58142744 ER |
3 | ;; Copyright (C) 1985, 1986 Free Software Foundation, Inc. |
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 | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
22 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | ||
e5167999 ER |
24 | ;;; Commentary: |
25 | ||
26 | ;; See Internet RFC 934 | |
27 | ||
28 | ;;; Code: | |
0d20f9a0 JB |
29 | |
30 | (defun undigestify-rmail-message () | |
31 | "Break up a digest message into its constituent messages. | |
32 | Leaves original message, deleted, before the undigestified messages." | |
33 | (interactive) | |
34 | (widen) | |
35 | (let ((buffer-read-only nil) | |
36 | (msg-string (buffer-substring (rmail-msgbeg rmail-current-message) | |
37 | (rmail-msgend rmail-current-message)))) | |
38 | (goto-char (rmail-msgend rmail-current-message)) | |
39 | (narrow-to-region (point) (point)) | |
40 | (insert msg-string) | |
41 | (narrow-to-region (point-min) (1- (point-max)))) | |
42 | (let ((error t) | |
43 | (buffer-read-only nil)) | |
44 | (unwind-protect | |
45 | (progn | |
46 | (save-restriction | |
47 | (goto-char (point-min)) | |
48 | (delete-region (point-min) | |
49 | (progn (search-forward "\n*** EOOH ***\n") | |
50 | (point))) | |
51 | (insert "\^_\^L\n0, unseen,,\n*** EOOH ***\n") | |
52 | (narrow-to-region (point) | |
53 | (point-max)) | |
54 | (let* ((fill-prefix "") | |
55 | (case-fold-search t) | |
56 | (digest-name | |
57 | (mail-strip-quoted-names | |
58 | (or (save-restriction | |
59 | (search-forward "\n\n") | |
60 | (narrow-to-region (point-min) (point)) | |
61 | (goto-char (point-max)) | |
62 | (or (mail-fetch-field "Reply-To") | |
63 | (mail-fetch-field "To") | |
64 | (mail-fetch-field "Apparently-To") | |
65 | (mail-fetch-field "From"))) | |
66 | (error "Message is not a digest"))))) | |
67 | (save-excursion | |
68 | (goto-char (point-max)) | |
69 | (skip-chars-backward " \t\n") | |
70 | (let ((count 10) found) | |
71 | ;; compensate for broken un*x digestifiers. Sigh Sigh. | |
72 | (while (and (> count 0) (not found)) | |
73 | (forward-line -1) | |
74 | (setq count (1- count)) | |
75 | (if (looking-at (concat "End of.*Digest.*\n" | |
76 | (regexp-quote "*********") "*" | |
77 | "\\(\n------*\\)*")) | |
78 | (setq found t))) | |
79 | (if (not found) (error "Message is not a digest")))) | |
80 | (re-search-forward (concat "^" (make-string 55 ?-) "-*\n*")) | |
81 | (replace-match "\^_\^L\n0, unseen,,\n*** EOOH ***\n") | |
82 | (save-restriction | |
83 | (narrow-to-region (point) | |
84 | (progn (search-forward "\n\n") | |
85 | (point))) | |
86 | (if (mail-fetch-field "To") nil | |
87 | (goto-char (point-min)) | |
88 | (insert "To: " digest-name "\n"))) | |
89 | (while (re-search-forward | |
90 | (concat "\n\n" (make-string 27 ?-) "-*\n*") | |
91 | nil t) | |
92 | (replace-match "\n\n\^_\^L\n0, unseen,,\n*** EOOH ***\n") | |
93 | (save-restriction | |
94 | (if (looking-at "End ") | |
95 | (insert "To: " digest-name "\n\n") | |
96 | (narrow-to-region (point) | |
97 | (progn (search-forward "\n\n" | |
98 | nil 'move) | |
99 | (point)))) | |
100 | (if (mail-fetch-field "To") nil | |
101 | (goto-char (point-min)) | |
102 | (insert "To: " digest-name "\n")))))) | |
103 | (setq error nil) | |
104 | (message "Message successfully undigestified") | |
105 | (let ((n rmail-current-message)) | |
106 | (rmail-forget-messages) | |
107 | (rmail-show-message n) | |
108 | (rmail-delete-forward))) | |
109 | (cond (error | |
110 | (narrow-to-region (point-min) (1+ (point-max))) | |
111 | (delete-region (point-min) (point-max)) | |
112 | (rmail-show-message rmail-current-message)))))) | |
113 | ||
d501f516 | 114 | ;;; undigest.el ends here |