[bpt/emacs.git] / lisp / mail / undigest.el

;;; undigest.el --- digest-cracking support for the RMAIL mail reader

;; Copyright (C) 1985, 1986, 1994, 1996, 2002
;; Free Software Foundation, Inc.

;; 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; 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:

;; See Internet RFC 934 and RFC 1153
;; Also limited support for MIME digest encapsulation

;;; Code:

(require 'rmail)

(defconst rmail-mail-separator
  "\^_\^L\n0, unseen,,\n*** EOOH ***\n"
  "String for separating messages in an rmail file.")

(defcustom rmail-forward-separator-regex
  "^----.*\\([Ff]orwarded\\|[Oo]riginal\\).*[Mm]essage"
  "*Regexp to match the string that introduces forwarded messages.
This is not a header, but a string contained in the body of the message.
You may need to customise it for local needs."
  :type 'regexp
  :group 'rmail-headers)

\f
(defconst rmail-digest-methods
  '(rmail-digest-parse-mime
    rmail-digest-parse-rfc1153strict
    rmail-digest-parse-rfc1153sloppy
    rmail-digest-parse-rfc934)
  "List of digest parsing functions, first tried first.

These functions operate on the current narrowing, and take no argument.
A function returns nil if it cannot parse the digest.  If it can, it
returns a list of cons pairs containing the start and end positions of
each undigestified message as markers.")

(defun rmail-digest-parse-mime ()
  (goto-char (point-min))
  (when (let ((head-end (progn (search-forward "\n\n" nil t) (point))))
	  (goto-char (point-min))
	  (and head-end
	       (re-search-forward
		(concat
		 "^Content-type: multipart/digest;"
		 "\\s-* boundary=\"?\\([^\";\n]+\\)[\";\n]") head-end t)
	       (search-forward (match-string 1) nil t)))
    ;; Ok, prolog separator found
    (let ((start (make-marker))
	  (end (make-marker))
	  (separator (concat "\n--" (match-string 0) "\n\n"))
	  result)
      (while (search-forward separator nil t)
	(move-marker start (match-beginning 0))
	(move-marker end (match-end 0))
	(add-to-list 'result (cons (copy-marker start) (copy-marker end t))))
      ;; Return the list of marker pairs
      (nreverse result))))

(defun rmail-digest-parse-rfc1153strict ()
  "Parse following strictly the method defined in RFC 1153.
See rmail-digest-methods."
 (rmail-digest-rfc1153
  "^-\\{70\\}\n\n"
  "^\n-\\{30\\}\n\n"
  "^\n-\\{30\\}\n\nEnd of .* Digest.*\n\\*\\{15,\\}\n+\'"))

(defun rmail-digest-parse-rfc1153sloppy ()
  "Parse using the method defined in RFC 1153, allowing for some sloppiness.
See rmail-digest-methods."
 (rmail-digest-rfc1153
  "^-\\{55,\\}\n\n"
  "^\n-\\{27,\\}\n\n"
  "^\n-\\{27,\\}\n\nEnd of"))

(defun rmail-digest-rfc1153 (prolog-sep message-sep trailer-sep)
  (goto-char (point-min))
  (when (re-search-forward prolog-sep nil t)
    ;; Ok, prolog separator found
    (let ((start (make-marker))
	  (end (make-marker))
	  separator result)
      (move-marker start (match-beginning 0))
      (move-marker end (match-end 0))
      (setq result (cons (copy-marker start) (copy-marker end t)))
      (when (re-search-forward message-sep nil t)
	;; Ok, at least one message separator found
	(setq separator (match-string 0))
	(when (re-search-forward trailer-sep nil t)
	  ;; Wonderful, we found a trailer, too.  Now, go on splitting
	  ;; the digest into separate rmail messages
	  (goto-char (cdar result))
	  (while (search-forward separator nil t)
	    (move-marker start (match-beginning 0))
	    (move-marker end (match-end 0))
	    (add-to-list 'result
			 (cons (copy-marker start) (copy-marker end t))))
	  ;; Undo masking of separators inside digestified messages
	  (goto-char (point-min))
	  (while (search-forward
		  (replace-regexp-in-string "\n-" "\n " separator) nil t)
	    (replace-match separator))
	  ;; Return the list of marker pairs
	  (nreverse result))))))

(defun rmail-digest-parse-rfc934 ()
  (goto-char (point-min))
  (when (re-search-forward "^\n?-[^ ].*\n\n?" nil t)
    ;; Message separator found
    (let ((start (make-marker))
	  (end (make-marker))
	  (separator (match-string 0))
	  result)
      (goto-char (point-min))
      (while (search-forward separator nil t)
	(move-marker start (match-beginning 0))
	(move-marker end (match-end 0))
	(add-to-list 'result (cons (copy-marker start) (copy-marker end t))))
      ;; Undo masking of separators inside digestified messages
      (goto-char (point-min))
      (while (search-forward "\n- -" nil t)
	(replace-match "\n-"))
      ;; Return the list of marker pairs
      (nreverse result))))

;;;###autoload
(defun undigestify-rmail-message ()
  "Break up a digest message into its constituent messages.
Leaves original message, deleted, before the undigestified messages."
  (interactive)
  (with-current-buffer rmail-buffer
    (widen)
    (let ((error t)
	  (buffer-read-only nil))
      (goto-char (rmail-msgend rmail-current-message))
      (let ((msg-copy (buffer-substring (rmail-msgbeg rmail-current-message)
					(rmail-msgend rmail-current-message))))
	(narrow-to-region (point) (point))
	(insert msg-copy))
      (narrow-to-region (point-min) (1- (point-max)))
      (unwind-protect
	  (progn
	    (save-restriction
	      (goto-char (point-min))
	      (delete-region (point-min)
			     (progn (search-forward "\n*** EOOH ***\n" nil t)
				    (point)))
	      (insert "\n" rmail-mail-separator)
	      (narrow-to-region (point)
				(point-max))
	      (let ((fill-prefix "")
		    (case-fold-search t)
		    digest-name type start end separator fun-list sep-list)
		(setq digest-name (mail-strip-quoted-names
				   (save-restriction
				     (search-forward "\n\n" nil 'move)
				     (setq start (point))
				     (narrow-to-region (point-min) start)
				     (or (mail-fetch-field "Reply-To")
					 (mail-fetch-field "To")
					 (mail-fetch-field "Apparently-To")
					 (mail-fetch-field "From")))))
		(unless digest-name
		  (error "Message is not a digest--bad header"))

		(setq fun-list rmail-digest-methods)
		(while (and fun-list
			    (null (setq sep-list (funcall (car fun-list)))))
		  (setq fun-list (cdr fun-list)))
		(unless sep-list
		  (error "Message is not a digest--no messages found"))

		;;; Split the digest into separate rmail messages
		(while sep-list
		  (let ((start (caar sep-list))
			(end (cdar sep-list)))
		    (delete-region start end)
		    (goto-char start)
		    (insert rmail-mail-separator)
		    (search-forward "\n\n" (caar (cdr sep-list)) 'move)
		    (save-restriction
		      (narrow-to-region end (point))
		      (unless (mail-fetch-field "To")
			(goto-char start)
			(insert "To: " digest-name "\n")))
		    (set-marker start nil)
		    (set-marker end nil))
		  (setq sep-list (cdr sep-list)))))

	    (setq error nil)
	    (message "Message successfully undigestified")
	    (let ((n rmail-current-message))
	      (rmail-forget-messages)
	      (rmail-show-message n)
	      (rmail-delete-forward)
	      (if (rmail-summary-exists)
		  (rmail-select-summary
		   (rmail-update-summary)))))
	(cond (error
	       (narrow-to-region (point-min) (1+ (point-max)))
	       (delete-region (point-min) (point-max))
	       (rmail-show-message rmail-current-message)))))))
\f
;;;###autoload
(defun unforward-rmail-message ()
  "Extract a forwarded message from the containing message.
This puts the forwarded message into a separate rmail message
following the containing message."
  (interactive)
  ;; If we are in a summary buffer, switch to the Rmail buffer.
  (unwind-protect
      (with-current-buffer rmail-buffer
	(goto-char (point-min))
	(narrow-to-region (point)
			  (save-excursion (search-forward "\n\n") (point)))
	(let ((buffer-read-only nil)
	      (old-fwd-from (mail-fetch-field "Forwarded-From" nil nil t))
	      (old-fwd-date (mail-fetch-field "Forwarded-Date" nil nil t))
	      (fwd-from (mail-fetch-field "From"))
	      (fwd-date (mail-fetch-field "Date"))
	      beg end prefix forward-msg)
	  (narrow-to-region (rmail-msgbeg rmail-current-message)
			    (rmail-msgend rmail-current-message))
	  (goto-char (point-min))
	  (cond ((re-search-forward rmail-forward-separator-regex nil t)
		 (forward-line 1)
		 (skip-chars-forward "\n")
		 (setq beg (point))
		 (setq end (if (re-search-forward "^----.*[^- \t\n]" nil t)
			       (match-beginning 0) (point-max)))
		 (setq forward-msg
		       (replace-regexp-in-string
			"^- -" "-" (buffer-substring beg end))))
		((and (re-search-forward "^\\(> ?\\)[a-zA-Z-]+: .*\n" nil t)
		      (setq beg (match-beginning 0))
		      (setq prefix (match-string-no-properties 1))
		      (goto-char beg)
		      (looking-at (concat "\\(" prefix ".+\n\\)*"
					  prefix "Date: ."))
		      (looking-at (concat "\\(" prefix ".+\n\\)*"
					  prefix "From: .+\n"
					  "\\(" prefix ".+\n\\)*"
					  "\\(> ?\\)?\n" prefix)))
		 (re-search-forward "^[^>\n]" nil 'move)
		 (backward-char)
		 (skip-chars-backward " \t\n")
		 (forward-line 1)
		 (setq end (point))
		 (setq forward-msg
		       (replace-regexp-in-string
			(if (string= prefix ">") "^>" "> ?")
			"" (buffer-substring beg end))))
		(t
		 (error "No forwarded message found")))
	  (widen)
	  (goto-char (rmail-msgend rmail-current-message))
	  (narrow-to-region (point) (point))
	  (insert rmail-mail-separator)
	  (narrow-to-region (point) (point))
	  (while old-fwd-from
	    (insert "Forwarded-From: " (car old-fwd-from) "\n")
	    (insert "Forwarded-Date: " (car old-fwd-date) "\n")
	    (setq old-fwd-from (cdr old-fwd-from))
	    (setq old-fwd-date (cdr old-fwd-date)))
	  (insert "Forwarded-From: " fwd-from "\n")
	  (insert "Forwarded-Date: " fwd-date "\n")
	  (insert forward-msg)
	  (save-restriction
	    (goto-char (point-min))
	    (re-search-forward "\n$" nil 'move)
	    (narrow-to-region (point-min) (point))
	    (goto-char (point-min))
	    (while (not (eobp))
	      (unless (looking-at "^[a-zA-Z-]+: ")
		(insert "\t"))
	      (forward-line)))
	  (goto-char (point-min))))
    (let ((n rmail-current-message))
      (rmail-forget-messages)
      (rmail-show-message n))
    (if (rmail-summary-exists)
	(rmail-select-summary
	 (rmail-update-summary)))))


(provide 'undigest)

;;; arch-tag: 3a28b9fb-c1f5-43ef-9278-285f3e4b874d
;;; undigest.el ends here
Commit	Line	Data
d501f516 ER	1	;;; undigest.el --- digest-cracking support for the RMAIL mail reader
d501f516 ER	2
3af9d2cf FP	3	;; Copyright (C) 1985, 1986, 1994, 1996, 2002
3af9d2cf FP	4	;; Free Software Foundation, Inc.
58142744	5
e5167999	6	;; Maintainer: FSF
d7b4d18f	7	;; Keywords: mail
e5167999	8
0d20f9a0 JB	9	;; This file is part of GNU Emacs.
	10
	11	;; GNU Emacs is free software; you can redistribute it and/or modify
	12	;; it under the terms of the GNU General Public License as published by
e5167999	13	;; the Free Software Foundation; either version 2, or (at your option)
0d20f9a0 JB	14	;; any later version.
	15
	16	;; GNU Emacs is distributed in the hope that it will be useful,
	17	;; but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	;; GNU General Public License for more details.
	20
	21	;; You should have received a copy of the GNU General Public License
b578f267 EN	22	;; along with GNU Emacs; 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.
0d20f9a0	25
e5167999 ER	26	;;; Commentary:
e5167999 ER	27
3af9d2cf	28	;; See Internet RFC 934 and RFC 1153
96f428d1	29	;; Also limited support for MIME digest encapsulation
e5167999 ER	30
e5167999 ER	31	;;; Code:
0d20f9a0	32
4fe9b563 KH	33	(require 'rmail)
4fe9b563 KH	34
47687ab8 FP	35	(defconst rmail-mail-separator
	36	"\^_\^L\n0, unseen,,\n* EOOH *\n"
	37	"String for separating messages in an rmail file.")
	38
a34804da FP	39	(defcustom rmail-forward-separator-regex
	40	"^----.\\([Ff]orwarded\\\|[Oo]riginal\\).[Mm]essage"
	41	"*Regexp to match the string that introduces forwarded messages.
	42	This is not a header, but a string contained in the body of the message.
	43	You may need to customise it for local needs."
	44	:type 'regexp
	45	:group 'rmail-headers)
	46
47687ab8	47	\f
3af9d2cf FP	48	(defconst rmail-digest-methods
	49	'(rmail-digest-parse-mime
	50	rmail-digest-parse-rfc1153strict
	51	rmail-digest-parse-rfc1153sloppy
	52	rmail-digest-parse-rfc934)
47687ab8	53	"List of digest parsing functions, first tried first.
3af9d2cf	54
47687ab8 FP	55	These functions operate on the current narrowing, and take no argument.
47687ab8 FP	56	A function returns nil if it cannot parse the digest. If it can, it
3af9d2cf FP	57	returns a list of cons pairs containing the start and end positions of
	58	each undigestified message as markers.")
	59
3af9d2cf FP	60	(defun rmail-digest-parse-mime ()
	61	(goto-char (point-min))
	62	(when (let ((head-end (progn (search-forward "\n\n" nil t) (point))))
	63	(goto-char (point-min))
	64	(and head-end
	65	(re-search-forward
	66	(concat
	67	"^Content-type: multipart/digest;"
	68	"\\s-* boundary=\"?\\([^\";\n]+\\)[\";\n]") head-end t)
	69	(search-forward (match-string 1) nil t)))
	70	;; Ok, prolog separator found
	71	(let ((start (make-marker))
	72	(end (make-marker))
	73	(separator (concat "\n--" (match-string 0) "\n\n"))
	74	result)
	75	(while (search-forward separator nil t)
	76	(move-marker start (match-beginning 0))
	77	(move-marker end (match-end 0))
	78	(add-to-list 'result (cons (copy-marker start) (copy-marker end t))))
	79	;; Return the list of marker pairs
	80	(nreverse result))))
	81
	82	(defun rmail-digest-parse-rfc1153strict ()
	83	"Parse following strictly the method defined in RFC 1153.
	84	See rmail-digest-methods."
	85	(rmail-digest-rfc1153
	86	"^-\\{70\\}\n\n"
	87	"^\n-\\{30\\}\n\n"
	88	"^\n-\\{30\\}\n\nEnd of .* Digest.\n\\\\{15,\\}\n+\'"))
	89
	90	(defun rmail-digest-parse-rfc1153sloppy ()
	91	"Parse using the method defined in RFC 1153, allowing for some sloppiness.
	92	See rmail-digest-methods."
	93	(rmail-digest-rfc1153
	94	"^-\\{55,\\}\n\n"
	95	"^\n-\\{27,\\}\n\n"
	96	"^\n-\\{27,\\}\n\nEnd of"))
	97
	98	(defun rmail-digest-rfc1153 (prolog-sep message-sep trailer-sep)
	99	(goto-char (point-min))
	100	(when (re-search-forward prolog-sep nil t)
	101	;; Ok, prolog separator found
	102	(let ((start (make-marker))
	103	(end (make-marker))
	104	separator result)
	105	(move-marker start (match-beginning 0))
	106	(move-marker end (match-end 0))
	107	(setq result (cons (copy-marker start) (copy-marker end t)))
	108	(when (re-search-forward message-sep nil t)
	109	;; Ok, at least one message separator found
	110	(setq separator (match-string 0))
	111	(when (re-search-forward trailer-sep nil t)
	112	;; Wonderful, we found a trailer, too. Now, go on splitting
	113	;; the digest into separate rmail messages
	114	(goto-char (cdar result))
	115	(while (search-forward separator nil t)
	116	(move-marker start (match-beginning 0))
	117	(move-marker end (match-end 0))
	118	(add-to-list 'result
	119	(cons (copy-marker start) (copy-marker end t))))
	120	;; Undo masking of separators inside digestified messages
	121	(goto-char (point-min))
	122	(while (search-forward
	123	(replace-regexp-in-string "\n-" "\n " separator) nil t)
124	(replace-match separator))
125	;; Return the list of marker pairs
126	(nreverse result))))))
127
128	(defun rmail-digest-parse-rfc934 ()
129	(goto-char (point-min))
130	(when (re-search-forward "^\n?-[^ ].*\n\n?" nil t)
131	;; Message separator found
132	(let ((start (make-marker))
133	(end (make-marker))
134	(separator (match-string 0))
135	result)
136	(goto-char (point-min))
137	(while (search-forward separator nil t)
138	(move-marker start (match-beginning 0))
139	(move-marker end (match-end 0))
140	(add-to-list 'result (cons (copy-marker start) (copy-marker end t))))
141	;; Undo masking of separators inside digestified messages
142	(goto-char (point-min))
143	(while (search-forward "\n- -" nil t)
144	(replace-match "\n-"))
145	;; Return the list of marker pairs
146	(nreverse result))))
147
372a91d7	148	;;;###autoload
0d20f9a0 JB	149	(defun undigestify-rmail-message ()
	150	"Break up a digest message into its constituent messages.
	151	Leaves original message, deleted, before the undigestified messages."
	152	(interactive)
add0c454 RS	153	(with-current-buffer rmail-buffer
add0c454 RS	154	(widen)
add0c454 RS	155	(let ((error t)
add0c454 RS	156	(buffer-read-only nil))
3af9d2cf FP	157	(goto-char (rmail-msgend rmail-current-message))
	158	(let ((msg-copy (buffer-substring (rmail-msgbeg rmail-current-message)
	159	(rmail-msgend rmail-current-message))))
	160	(narrow-to-region (point) (point))
	161	(insert msg-copy))
	162	(narrow-to-region (point-min) (1- (point-max)))
add0c454 RS	163	(unwind-protect
	164	(progn
	165	(save-restriction
	166	(goto-char (point-min))
	167	(delete-region (point-min)
3af9d2cf	168	(progn (search-forward "\n* EOOH *\n" nil t)
add0c454	169	(point)))
47687ab8	170	(insert "\n" rmail-mail-separator)
add0c454 RS	171	(narrow-to-region (point)
add0c454 RS	172	(point-max))
3af9d2cf FP	173	(let ((fill-prefix "")
	174	(case-fold-search t)
	175	digest-name type start end separator fun-list sep-list)
	176	(setq digest-name (mail-strip-quoted-names
	177	(save-restriction
	178	(search-forward "\n\n" nil 'move)
	179	(setq start (point))
	180	(narrow-to-region (point-min) start)
	181	(or (mail-fetch-field "Reply-To")
	182	(mail-fetch-field "To")
	183	(mail-fetch-field "Apparently-To")
	184	(mail-fetch-field "From")))))
	185	(unless digest-name
	186	(error "Message is not a digest--bad header"))
	187
	188	(setq fun-list rmail-digest-methods)
	189	(while (and fun-list
	190	(null (setq sep-list (funcall (car fun-list)))))
	191	(setq fun-list (cdr fun-list)))
	192	(unless sep-list
	193	(error "Message is not a digest--no messages found"))
	194
	195	;;; Split the digest into separate rmail messages
	196	(while sep-list
	197	(let ((start (caar sep-list))
	198	(end (cdar sep-list)))
	199	(delete-region start end)
	200	(goto-char start)
47687ab8	201	(insert rmail-mail-separator)
3af9d2cf FP	202	(search-forward "\n\n" (caar (cdr sep-list)) 'move)
	203	(save-restriction
	204	(narrow-to-region end (point))
	205	(unless (mail-fetch-field "To")
	206	(goto-char start)
	207	(insert "To: " digest-name "\n")))
	208	(set-marker start nil)
	209	(set-marker end nil))
	210	(setq sep-list (cdr sep-list)))))
	211
add0c454 RS	212	(setq error nil)
	213	(message "Message successfully undigestified")
	214	(let ((n rmail-current-message))
	215	(rmail-forget-messages)
	216	(rmail-show-message n)
	217	(rmail-delete-forward)
	218	(if (rmail-summary-exists)
	219	(rmail-select-summary
	220	(rmail-update-summary)))))
	221	(cond (error
	222	(narrow-to-region (point-min) (1+ (point-max)))
	223	(delete-region (point-min) (point-max))
	224	(rmail-show-message rmail-current-message)))))))
47687ab8	225	\f
372a91d7	226	;;;###autoload
9f606031 KH	227	(defun unforward-rmail-message ()
	228	"Extract a forwarded message from the containing message.
	229	This puts the forwarded message into a separate rmail message
	230	following the containing message."
	231	(interactive)
add0c454	232	;; If we are in a summary buffer, switch to the Rmail buffer.
47687ab8 FP	233	(unwind-protect
47687ab8 FP	234	(with-current-buffer rmail-buffer
47687ab8	235	(goto-char (point-min))
89dac01f FP	236	(narrow-to-region (point)
89dac01f FP	237	(save-excursion (search-forward "\n\n") (point)))
47687ab8	238	(let ((buffer-read-only nil)
89dac01f FP	239	(old-fwd-from (mail-fetch-field "Forwarded-From" nil nil t))
	240	(old-fwd-date (mail-fetch-field "Forwarded-Date" nil nil t))
	241	(fwd-from (mail-fetch-field "From"))
	242	(fwd-date (mail-fetch-field "Date"))
e49ba701	243	beg end prefix forward-msg)
89dac01f FP	244	(narrow-to-region (rmail-msgbeg rmail-current-message)
	245	(rmail-msgend rmail-current-message))
	246	(goto-char (point-min))
a34804da	247	(cond ((re-search-forward rmail-forward-separator-regex nil t)
47687ab8	248	(forward-line 1)
59cb5b9b	249	(skip-chars-forward "\n")
47687ab8 FP	250	(setq beg (point))
	251	(setq end (if (re-search-forward "^----.*[^- \t\n]" nil t)
	252	(match-beginning 0) (point-max)))
	253	(setq forward-msg
	254	(replace-regexp-in-string
	255	"^- -" "-" (buffer-substring beg end))))
85e94996	256	((and (re-search-forward "^\\(> ?\\)[a-zA-Z-]+: .*\n" nil t)
47687ab8	257	(setq beg (match-beginning 0))
baad7c13	258	(setq prefix (match-string-no-properties 1))
85e94996	259	(goto-char beg)
47687ab8	260	(looking-at (concat "\\(" prefix ".+\n\\)*"
baad7c13	261	prefix "Date: ."))
85e94996 FP	262	(looking-at (concat "\\(" prefix ".+\n\\)*"
	263	prefix "From: .+\n"
	264	"\\(" prefix ".+\n\\)*"
47687ab8 FP	265	"\\(> ?\\)?\n" prefix)))
	266	(re-search-forward "^[^>\n]" nil 'move)
	267	(backward-char)
	268	(skip-chars-backward " \t\n")
	269	(forward-line 1)
	270	(setq end (point))
	271	(setq forward-msg
	272	(replace-regexp-in-string
	273	(if (string= prefix ">") "^>" "> ?")
	274	"" (buffer-substring beg end))))
	275	(t
	276	(error "No forwarded message found")))
	277	(widen)
	278	(goto-char (rmail-msgend rmail-current-message))
	279	(narrow-to-region (point) (point))
	280	(insert rmail-mail-separator)
	281	(narrow-to-region (point) (point))
89dac01f FP	282	(while old-fwd-from
	283	(insert "Forwarded-From: " (car old-fwd-from) "\n")
	284	(insert "Forwarded-Date: " (car old-fwd-date) "\n")
	285	(setq old-fwd-from (cdr old-fwd-from))
	286	(setq old-fwd-date (cdr old-fwd-date)))
	287	(insert "Forwarded-From: " fwd-from "\n")
	288	(insert "Forwarded-Date: " fwd-date "\n")
47687ab8 FP	289	(insert forward-msg)
	290	(save-restriction
	291	(goto-char (point-min))
	292	(re-search-forward "\n$" nil 'move)
	293	(narrow-to-region (point-min) (point))
	294	(goto-char (point-min))
	295	(while (not (eobp))
	296	(unless (looking-at "^[a-zA-Z-]+: ")
	297	(insert "\t"))
	298	(forward-line)))
	299	(goto-char (point-min))))
e49ba701 KS	300	(let ((n rmail-current-message))
	301	(rmail-forget-messages)
	302	(rmail-show-message n))
47687ab8 FP	303	(if (rmail-summary-exists)
	304	(rmail-select-summary
	305	(rmail-update-summary)))))
	306
9f606031	307
896546cd RS	308	(provide 'undigest)
896546cd RS	309
ab5796a9	310	;;; arch-tag: 3a28b9fb-c1f5-43ef-9278-285f3e4b874d
d501f516	311	;;; undigest.el ends here