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

;;; rmailsum.el --- "RMAIL" mail reader for Emacs.

;; Maintainer: FSF
;; Last-Modified: 30 Nov 1990
;; Keywords: mail

;; Copyright (C) 1985 Free Software Foundation, Inc.

;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.

;;; Code:

;; summary things

(defun rmail-summary ()
  "Display a summary of all messages, one line per message."
  (interactive)
  (rmail-new-summary "All" nil))

(defun rmail-summary-by-labels (labels)
  "Display a summary of all messages with one or more LABELS.
LABELS should be a string containing the desired labels, separated by commas."
  (interactive "sLabels to summarize by: ")
  (if (string= labels "")
      (setq labels (or rmail-last-multi-labels
		       (error "No label specified"))))
  (setq rmail-last-multi-labels labels)
  (rmail-new-summary (concat "labels " labels)
		     'rmail-message-labels-p
		     (concat ", \\(" (mail-comma-list-regexp labels) "\\),")))

(defun rmail-summary-by-recipients (recipients &optional primary-only)
  "Display a summary of all messages with the given RECIPIENTS.
Normally checks the To, From and Cc fields of headers;
but if PRIMARY-ONLY is non-nil (prefix arg given),
 only look in the To and From fields.
RECIPIENTS is a string of names separated by commas."
  (interactive "sRecipients to summarize by: \nP")
  (rmail-new-summary
   (concat "recipients " recipients)
   'rmail-message-recipients-p
   (mail-comma-list-regexp recipients) primary-only))

(defun rmail-message-recipients-p (msg recipients &optional primary-only)
  (save-restriction
    (goto-char (rmail-msgbeg msg))
    (search-forward "\n*** EOOH ***\n")
    (narrow-to-region (point) (progn (search-forward "\n\n") (point)))
    (or (string-match recipients (or (mail-fetch-field "To") ""))
	(string-match recipients (or (mail-fetch-field "From") ""))
	(if (not primary-only)
	    (string-match recipients (or (mail-fetch-field "Cc") ""))))))

(defun rmail-summary-by-regexp (regexp)
  "Display a summary of all messages according to regexp REGEXP.
If the regular expression is found in the header of the message
\(including in the date and other lines, as well as the subject line),
Emacs will list the header line in the RMAIL-summary."
  (interactive "sRegexp to summarize by: ")
  (if (string= regexp "")
      (setq regexp (or rmail-last-regexp
			 (error "No regexp specified"))))
  (setq rmail-last-regexp regexp)
  (rmail-new-summary (concat "regexp " regexp)
		     'rmail-message-regexp-p
                     regexp))

(defun rmail-message-regexp-p (msg regexp)
  "Return t, if for message number MSG, regexp REGEXP matches in the header."
  (goto-char (rmail-msgbeg msg))
  (let ((end 
         (save-excursion 
           (search-forward "*** EOOH ***" (point-max)) (point))))
    (re-search-forward regexp end t)))
\f
(defun rmail-new-summary (description function &rest args)
  "Create a summary of selected messages.
DESCRIPTION makes part of the mode line of the summary buffer.
For each message, FUNCTION is applied to the message number and ARGS...
and if the result is non-nil, that message is included.
nil for FUNCTION means all messages."
  (message "Computing summary lines...")
  (or (and rmail-summary-buffer
	   (buffer-name rmail-summary-buffer))
      (setq rmail-summary-buffer
	    (generate-new-buffer (concat (buffer-name) "-summary"))))
  (let ((summary-msgs ())
	(new-summary-line-count 0))
    (let ((msgnum 1)
	  (buffer-read-only nil))
      (save-restriction
	(save-excursion
	  (widen)
	  (goto-char (point-min))
	  (while (>= rmail-total-messages msgnum)
	    (if (or (null function)
		    (apply function (cons msgnum args)))
		(setq summary-msgs
		      (cons (rmail-make-summary-line msgnum)
			    summary-msgs)))
	    (setq msgnum (1+ msgnum))))))
    (let ((sbuf rmail-summary-buffer)
	  (rbuf (current-buffer))
	  (total rmail-total-messages)
	  (mesg rmail-current-message))
      (pop-to-buffer sbuf)
      ;; Our scroll command should always scroll the Rmail buffer.
      (make-local-variable 'other-window-scroll-buffer)
      (setq other-window-scroll-buffer rbuf)
      (let ((buffer-read-only nil))
	(erase-buffer)
	(cond (summary-msgs
	       (princ (nreverse summary-msgs) sbuf)
	       (delete-char -1)
	       (subst-char-in-region 1 2 ?\( ?\ ))))
      (setq buffer-read-only t)
      (goto-char (point-min))
      (rmail-summary-mode)
      (make-local-variable 'minor-mode-alist)
      (setq minor-mode-alist (list ": " description))
      (setq rmail-buffer rbuf
	    rmail-total-messages total)
      (rmail-summary-goto-msg mesg t)))
  (message "Computing summary lines...done"))

(defun rmail-make-summary-line (msg)
  (let ((line (or (aref rmail-summary-vector (1- msg))
		  (progn
		    (setq new-summary-line-count
			  (1+ new-summary-line-count))
		    (if (zerop (% new-summary-line-count 10))
			(message "Computing summary lines...%d"
				 new-summary-line-count))
		    (rmail-make-summary-line-1 msg)))))
    ;; Fix up the part of the summary that says "deleted" or "unseen".
    (aset line 4
	  (if (rmail-message-deleted-p msg) ?\D
	    (if (= ?0 (char-after (+ 3 (rmail-msgbeg msg))))
		?\- ?\ )))
    line))

(defun rmail-make-summary-line-1 (msg)
  (goto-char (rmail-msgbeg msg))
  (let* ((lim (save-excursion (forward-line 2) (point)))
	 pos
	 (labels
	  (progn
	    (forward-char 3)
	    (concat
;	     (if (save-excursion (re-search-forward ",answered," lim t))
;		 "*" "")
;	     (if (save-excursion (re-search-forward ",filed," lim t))
;		 "!" "")
	     (if (progn (search-forward ",,") (eolp))
		 ""
	       (concat "{"
		       (buffer-substring (point)
					 (progn (end-of-line) (point)))
		       "} ")))))
	 (line
	  (progn
	    (forward-line 1)
	    (if (looking-at "Summary-line: ")
		(progn
		  (goto-char (match-end 0))
		  (setq line
			(buffer-substring (point)
					  (progn (forward-line 1) (point)))))))))
    ;; Obsolete status lines lacking a # should be flushed.
    (and line
	 (not (string-match "#" line))
	 (progn
	   (delete-region (point)
			  (progn (forward-line -1) (point)))
	   (setq line nil)))
    ;; If we didn't get a valid status line from the message,
    ;; make a new one and put it in the message.
    (or line
	(let* ((case-fold-search t)
	       (next (rmail-msgend msg))
	       (beg (if (progn (goto-char (rmail-msgbeg msg))
			       (search-forward "\n*** EOOH ***\n" next t))
			(point)
		      (forward-line 1)
		      (point)))
	       (end (progn (search-forward "\n\n" nil t) (point))))
	  (save-restriction
	    (narrow-to-region beg end)
	    (goto-char beg)
	    (setq line (rmail-make-basic-summary-line)))
	  (goto-char (rmail-msgbeg msg))
	  (forward-line 2)
	  (insert "Summary-line: " line)))
    (setq pos (string-match "#" line))
    (aset rmail-summary-vector (1- msg)
	  (concat (format "%4d  " msg)
		  (substring line 0 pos)
		  labels
		  (substring line (1+ pos))))))

(defun rmail-make-basic-summary-line ()
  (goto-char (point-min))
  (concat (save-excursion
	    (if (not (re-search-forward "^Date:" nil t))
		"      "
	      (cond ((re-search-forward "\\([^0-9:]\\)\\([0-3]?[0-9]\\)\\([- \t_]+\\)\\([adfjmnos][aceopu][bcglnprtvy]\\)"
		      (save-excursion (end-of-line) (point)) t)
		     (format "%2d-%3s"
			     (string-to-int (buffer-substring
					     (match-beginning 2)
					     (match-end 2)))
			     (buffer-substring
			      (match-beginning 4) (match-end 4))))
		    ((re-search-forward "\\([^a-z]\\)\\([adfjmnos][acepou][bcglnprtvy]\\)\\([-a-z \t_]*\\)\\([0-9][0-9]?\\)"
		      (save-excursion (end-of-line) (point)) t)
		     (format "%2d-%3s"
			     (string-to-int (buffer-substring
					     (match-beginning 4)
					     (match-end 4)))
			     (buffer-substring
			      (match-beginning 2) (match-end 2))))
		    (t "??????"))))
	  "  "
	  (save-excursion
	    (if (not (re-search-forward "^From:[ \t]*" nil t))
		"                         "
	      (let* ((from (mail-strip-quoted-names
			    (buffer-substring
			     (1- (point))
			     (progn (end-of-line)
				    (skip-chars-backward " \t")
				    (point)))))
		     len mch lo)
		(if (string-match (concat "^"
					  (regexp-quote (user-login-name))
					  "\\($\\|@\\)")
				  from)
		    (save-excursion
		      (goto-char (point-min))
		      (if (not (re-search-forward "^To:[ \t]*" nil t))
			  nil
			(setq from
			      (concat "to: "
				      (mail-strip-quoted-names
				       (buffer-substring
					(point)
					(progn (end-of-line)
					       (skip-chars-backward " \t")
					       (point)))))))))
		(setq len (length from))
		(setq mch (string-match "[@%]" from))
		(format "%25s"
			(if (or (not mch) (<= len 25))
			    (substring from (max 0 (- len 25)))
			  (substring from
				     (setq lo (cond ((< (- mch 9) 0) 0)
						    ((< len (+ mch 16))
						     (- len 25))
						    (t (- mch 9))))
				     (min len (+ lo 25))))))))
	  "  #"
	  (if (re-search-forward "^Subject:" nil t)
	      (progn (skip-chars-forward " \t")
		     (buffer-substring (point)
				       (progn (end-of-line)
					      (point))))
	    (re-search-forward "[\n][\n]+" nil t)
	    (buffer-substring (point) (progn (end-of-line) (point))))
	  "\n"))

(defun rmail-summary-next-all (&optional number)
  (interactive "p")
  (forward-line (if number number 1))
  (rmail-summary-goto-msg))

(defun rmail-summary-previous-all (&optional number)
  (interactive "p")
  (forward-line (- (if number number 1)))
  (rmail-summary-goto-msg))

(defun rmail-summary-next-msg (&optional number)
  (interactive "p")
  (forward-line 0)
  (and (> number 0) (forward-line 1))
  (let ((count (if (< number 0) (- number) number))
	(search (if (> number 0) 're-search-forward 're-search-backward))
	end)
    (while (and (> count 0) (funcall search "^.....[^D]" nil t))
      (setq count (1- count)))
    (rmail-summary-goto-msg)))

(defun rmail-summary-previous-msg (&optional number)
  (interactive "p")
  (rmail-summary-next-msg (- (if number number 1))))

(defun rmail-summary-delete-forward ()
  (interactive)
  (let (end)
    (rmail-summary-goto-msg)
    (pop-to-buffer rmail-buffer)
    (rmail-delete-message)
    (pop-to-buffer rmail-summary-buffer)
    (let ((buffer-read-only nil))
      (skip-chars-forward " ")
      (skip-chars-forward "[0-9]")
      (delete-char 1)
      (insert "D"))
    (rmail-summary-next-msg 1)))

(defun rmail-summary-delete-backward ()
  (interactive)
  (let (end)
    (rmail-summary-goto-msg)
    (pop-to-buffer rmail-buffer)
    (rmail-delete-message)
    (pop-to-buffer rmail-summary-buffer)
    (let ((buffer-read-only nil))
      (skip-chars-forward " ")
      (skip-chars-forward "[0-9]")
      (delete-char 1)
      (insert "D"))
    (rmail-summary-next-msg -1)))

(defun rmail-summary-undelete ()
  (interactive)
  (let ((buffer-read-only nil))
    (end-of-line)
    (cond ((re-search-backward "\\(^ *[0-9]*\\)\\(D\\)" nil t)
	   (replace-match "\\1 ")
	   (rmail-summary-goto-msg)
	   (pop-to-buffer rmail-buffer)
	   (and (rmail-message-deleted-p rmail-current-message)
		(rmail-undelete-previous-message))
	   (pop-to-buffer rmail-summary-buffer))
	  (t
	   (rmail-summary-goto-msg)))))

;; Rmail Summary mode is suitable only for specially formatted data.
(put 'rmail-summary-mode 'mode-class 'special)

(defun rmail-summary-mode ()
  "Major mode in effect in Rmail summary buffer.
A subset of the Rmail mode commands are supported in this mode. 
As commands are issued in the summary buffer the corresponding
mail message is displayed in the rmail buffer.

n       Move to next undeleted message, or arg messages.
p       Move to previous undeleted message, or arg messages.
M-n	Move to next, or forward arg messages.
M-p	Move to previous, or previous arg messages.
j       Jump to the message at the cursor location.
d       Delete the message at the cursor location and move to next message.
C-d	Delete the message at the cursor location and move to previous message.
u	Undelete this or previous deleted message.
q	Quit Rmail.
x	Exit and kill the summary window.
space   Scroll message in other window forward.
delete  Scroll message backward.

Entering this mode calls value of hook variable rmail-summary-mode-hook."
  (interactive)
  (kill-all-local-variables)
  (make-local-variable 'rmail-buffer)
  (make-local-variable 'rmail-total-messages)
  (setq major-mode 'rmail-summary-mode)
  (setq mode-name "RMAIL Summary")
  (use-local-map rmail-summary-mode-map)
  (setq truncate-lines t)
  (setq buffer-read-only t)
  (set-syntax-table text-mode-syntax-table)
  (run-hooks 'rmail-summary-mode-hook))

(defun rmail-summary-goto-msg (&optional n nowarn)
  (interactive "P")
  (if (consp n) (setq n (prefix-numeric-value n)))
  (if (eobp) (forward-line -1))
  (beginning-of-line)
  (let ((buf rmail-buffer)
	(cur (point))
	(curmsg (string-to-int
		 (buffer-substring (point)
				   (min (point-max) (+ 5 (point)))))))
    (if (not n)
	(setq n curmsg)
      (if (< n 1)
	  (progn (message "No preceding message")
		 (setq n 1)))
      (if (> n rmail-total-messages)
	  (progn (message "No following message")
		 (goto-char (point-max))
		 (rmail-summary-goto-msg)))
      (goto-char (point-min))
      (if (not (re-search-forward (concat "^ *" (int-to-string n)) nil t))
	  (progn (or nowarn (message "Message %d not found" n))
		 (setq n curmsg)
		 (goto-char cur))))
    (beginning-of-line)
    (skip-chars-forward " ")
    (skip-chars-forward "0-9")
    (save-excursion (if (= (following-char) ?-)
			(let ((buffer-read-only nil))
			  (delete-char 1)
			  (insert " "))))
    (beginning-of-line)
    (pop-to-buffer buf)
    (rmail-show-message n)
    (pop-to-buffer rmail-summary-buffer)))

(defvar rmail-summary-mode-map nil)

(if rmail-summary-mode-map
    nil
  (setq rmail-summary-mode-map (make-keymap))
  (suppress-keymap rmail-summary-mode-map)
  (define-key rmail-summary-mode-map "j" 'rmail-summary-goto-msg)
  (define-key rmail-summary-mode-map "n" 'rmail-summary-next-msg)
  (define-key rmail-summary-mode-map "p" 'rmail-summary-previous-msg)
  (define-key rmail-summary-mode-map "\en" 'rmail-summary-next-all)
  (define-key rmail-summary-mode-map "\ep" 'rmail-summary-previous-all)
  (define-key rmail-summary-mode-map " " 'rmail-summary-scroll-msg-up)
  (define-key rmail-summary-mode-map "q" 'rmail-summary-quit)
  (define-key rmail-summary-mode-map "u" 'rmail-summary-undelete)
  (define-key rmail-summary-mode-map "x" 'rmail-summary-exit)
  (define-key rmail-summary-mode-map "\177" 'rmail-summary-scroll-msg-down)
  (define-key rmail-summary-mode-map "d" 'rmail-summary-delete-forward)
  (define-key rmail-summary-mode-map "\C-d" 'rmail-summary-delete-backward))

(defun rmail-summary-scroll-msg-up (&optional dist)
  "Scroll other window forward."
  (interactive "P")
  (let ((window (selected-window))
	(new-window (display-buffer rmail-buffer)))
    (unwind-protect
	(progn
	  (select-window new-window)
	  (scroll-up dist))
      (select-window window))))

(defun rmail-summary-scroll-msg-down (&optional dist)
  "Scroll other window backward."
  (interactive "P")
  (let ((window (selected-window))
	(new-window (display-buffer rmail-buffer)))
    (unwind-protect
	(progn
	  (select-window new-window)
	  (scroll-down dist))
      (select-window window))))

(defun rmail-summary-quit ()
  "Quit out of rmail and rmail summary."
  (interactive)
  (rmail-summary-exit)
  (rmail-quit))

(defun rmail-summary-exit ()
  "Exit rmail summary, remaining within rmail."
  (interactive)
  (bury-buffer (current-buffer))
  (if (get-buffer-window rmail-buffer)
      ;; Select the window with rmail in it, then delete this window.
      (select-window (prog1
			 (get-buffer-window rmail-buffer)
		       (delete-window (selected-window))))
    ;; Switch to the rmail buffer in this window.
    (switch-to-buffer rmail-buffer)))

;;; rmailsum.el ends here
Commit	Line	Data
c88ab9ce ER	1	;;; rmailsum.el --- "RMAIL" mail reader for Emacs.
c88ab9ce ER	2
e5167999 ER	3	;; Maintainer: FSF
e5167999 ER	4	;; Last-Modified: 30 Nov 1990
d7b4d18f	5	;; Keywords: mail
e5167999	6
4d4d11cc JB	7	;; Copyright (C) 1985 Free Software Foundation, Inc.
	8
	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)
4d4d11cc 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
	22	;; along with GNU Emacs; see the file COPYING. If not, write to
	23	;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
	24
e5167999	25	;;; Code:
4d4d11cc JB	26
	27	;; summary things
	28
	29	(defun rmail-summary ()
	30	"Display a summary of all messages, one line per message."
	31	(interactive)
	32	(rmail-new-summary "All" nil))
	33
	34	(defun rmail-summary-by-labels (labels)
	35	"Display a summary of all messages with one or more LABELS.
	36	LABELS should be a string containing the desired labels, separated by commas."
	37	(interactive "sLabels to summarize by: ")
	38	(if (string= labels "")
	39	(setq labels (or rmail-last-multi-labels
	40	(error "No label specified"))))
	41	(setq rmail-last-multi-labels labels)
	42	(rmail-new-summary (concat "labels " labels)
	43	'rmail-message-labels-p
	44	(concat ", \\(" (mail-comma-list-regexp labels) "\\),")))
	45
	46	(defun rmail-summary-by-recipients (recipients &optional primary-only)
	47	"Display a summary of all messages with the given RECIPIENTS.
	48	Normally checks the To, From and Cc fields of headers;
	49	but if PRIMARY-ONLY is non-nil (prefix arg given),
	50	only look in the To and From fields.
	51	RECIPIENTS is a string of names separated by commas."
	52	(interactive "sRecipients to summarize by: \nP")
	53	(rmail-new-summary
	54	(concat "recipients " recipients)
	55	'rmail-message-recipients-p
	56	(mail-comma-list-regexp recipients) primary-only))
	57
	58	(defun rmail-message-recipients-p (msg recipients &optional primary-only)
	59	(save-restriction
	60	(goto-char (rmail-msgbeg msg))
	61	(search-forward "\n* EOOH *\n")
	62	(narrow-to-region (point) (progn (search-forward "\n\n") (point)))
	63	(or (string-match recipients (or (mail-fetch-field "To") ""))
	64	(string-match recipients (or (mail-fetch-field "From") ""))
	65	(if (not primary-only)
	66	(string-match recipients (or (mail-fetch-field "Cc") ""))))))
	67
	68	(defun rmail-summary-by-regexp (regexp)
	69	"Display a summary of all messages according to regexp REGEXP.
	70	If the regular expression is found in the header of the message
	71	\(including in the date and other lines, as well as the subject line),
	72	Emacs will list the header line in the RMAIL-summary."
	73	(interactive "sRegexp to summarize by: ")
	74	(if (string= regexp "")
	75	(setq regexp (or rmail-last-regexp
	76	(error "No regexp specified"))))
	77	(setq rmail-last-regexp regexp)
	78	(rmail-new-summary (concat "regexp " regexp)
	79	'rmail-message-regexp-p
	80	regexp))
	81
	82	(defun rmail-message-regexp-p (msg regexp)
	83	"Return t, if for message number MSG, regexp REGEXP matches in the header."
	84	(goto-char (rmail-msgbeg msg))
	85	(let ((end
	86	(save-excursion
	87	(search-forward "* EOOH *" (point-max)) (point))))
	88	(re-search-forward regexp end t)))
	89	\f
90	(defun rmail-new-summary (description function &rest args)
91	"Create a summary of selected messages.
92	DESCRIPTION makes part of the mode line of the summary buffer.
93	For each message, FUNCTION is applied to the message number and ARGS...
94	and if the result is non-nil, that message is included.
95	nil for FUNCTION means all messages."
96	(message "Computing summary lines...")
97	(or (and rmail-summary-buffer
98	(buffer-name rmail-summary-buffer))
99	(setq rmail-summary-buffer
100	(generate-new-buffer (concat (buffer-name) "-summary"))))
101	(let ((summary-msgs ())
102	(new-summary-line-count 0))
103	(let ((msgnum 1)
104	(buffer-read-only nil))
105	(save-restriction
106	(save-excursion
107	(widen)
108	(goto-char (point-min))
109	(while (>= rmail-total-messages msgnum)
110	(if (or (null function)
111	(apply function (cons msgnum args)))
112	(setq summary-msgs
113	(cons (rmail-make-summary-line msgnum)
114	summary-msgs)))
115	(setq msgnum (1+ msgnum))))))
116	(let ((sbuf rmail-summary-buffer)
117	(rbuf (current-buffer))
118	(total rmail-total-messages)
119	(mesg rmail-current-message))
120	(pop-to-buffer sbuf)
121	;; Our scroll command should always scroll the Rmail buffer.
122	(make-local-variable 'other-window-scroll-buffer)
123	(setq other-window-scroll-buffer rbuf)
124	(let ((buffer-read-only nil))
125	(erase-buffer)
126	(cond (summary-msgs
127	(princ (nreverse summary-msgs) sbuf)
128	(delete-char -1)
129	(subst-char-in-region 1 2 ?\( ?\ ))))
130	(setq buffer-read-only t)
131	(goto-char (point-min))
132	(rmail-summary-mode)
133	(make-local-variable 'minor-mode-alist)
134	(setq minor-mode-alist (list ": " description))
135	(setq rmail-buffer rbuf
136	rmail-total-messages total)
137	(rmail-summary-goto-msg mesg t)))
138	(message "Computing summary lines...done"))
139
140	(defun rmail-make-summary-line (msg)
141	(let ((line (or (aref rmail-summary-vector (1- msg))
142	(progn
143	(setq new-summary-line-count
144	(1+ new-summary-line-count))
145	(if (zerop (% new-summary-line-count 10))
146	(message "Computing summary lines...%d"
147	new-summary-line-count))
148	(rmail-make-summary-line-1 msg)))))
149	;; Fix up the part of the summary that says "deleted" or "unseen".
150	(aset line 4
151	(if (rmail-message-deleted-p msg) ?\D
152	(if (= ?0 (char-after (+ 3 (rmail-msgbeg msg))))
153	?\- ?\ )))
154	line))
155
156	(defun rmail-make-summary-line-1 (msg)
157	(goto-char (rmail-msgbeg msg))
158	(let* ((lim (save-excursion (forward-line 2) (point)))
159	pos
160	(labels
161	(progn
162	(forward-char 3)
163	(concat
164	; (if (save-excursion (re-search-forward ",answered," lim t))
165	; "*" "")
166	; (if (save-excursion (re-search-forward ",filed," lim t))
167	; "!" "")
168	(if (progn (search-forward ",,") (eolp))
169	""
170	(concat "{"
171	(buffer-substring (point)
172	(progn (end-of-line) (point)))
173	"} ")))))
174	(line
175	(progn
176	(forward-line 1)
177	(if (looking-at "Summary-line: ")
178	(progn
179	(goto-char (match-end 0))
180	(setq line
181	(buffer-substring (point)
182	(progn (forward-line 1) (point)))))))))
183	;; Obsolete status lines lacking a # should be flushed.
184	(and line
185	(not (string-match "#" line))
186	(progn
187	(delete-region (point)
188	(progn (forward-line -1) (point)))
189	(setq line nil)))
190	;; If we didn't get a valid status line from the message,
191	;; make a new one and put it in the message.
192	(or line
193	(let* ((case-fold-search t)
194	(next (rmail-msgend msg))
195	(beg (if (progn (goto-char (rmail-msgbeg msg))
196	(search-forward "\n* EOOH *\n" next t))
197	(point)
198	(forward-line 1)
199	(point)))
200	(end (progn (search-forward "\n\n" nil t) (point))))
201	(save-restriction
202	(narrow-to-region beg end)
203	(goto-char beg)
204	(setq line (rmail-make-basic-summary-line)))
205	(goto-char (rmail-msgbeg msg))
206	(forward-line 2)
207	(insert "Summary-line: " line)))
208	(setq pos (string-match "#" line))
209	(aset rmail-summary-vector (1- msg)
210	(concat (format "%4d " msg)
211	(substring line 0 pos)
212	labels
213	(substring line (1+ pos))))))
214
215	(defun rmail-make-basic-summary-line ()
216	(goto-char (point-min))
217	(concat (save-excursion
218	(if (not (re-search-forward "^Date:" nil t))
219	" "
220	(cond ((re-search-forward "\\([^0-9:]\\)\\([0-3]?[0-9]\\)\\([- \t_]+\\)\\([adfjmnos][aceopu][bcglnprtvy]\\)"
221	(save-excursion (end-of-line) (point)) t)
222	(format "%2d-%3s"
223	(string-to-int (buffer-substring
224	(match-beginning 2)
225	(match-end 2)))
226	(buffer-substring
227	(match-beginning 4) (match-end 4))))
228	((re-search-forward "\\([^a-z]\\)\\([adfjmnos][acepou][bcglnprtvy]\\)\\([-a-z \t_]*\\)\\([0-9][0-9]?\\)"
229	(save-excursion (end-of-line) (point)) t)
230	(format "%2d-%3s"
231	(string-to-int (buffer-substring
232	(match-beginning 4)
233	(match-end 4)))
234	(buffer-substring
235	(match-beginning 2) (match-end 2))))
236	(t "??????"))))
237	" "
238	(save-excursion
239	(if (not (re-search-forward "^From:[ \t]*" nil t))
240	" "
241	(let* ((from (mail-strip-quoted-names
242	(buffer-substring
243	(1- (point))
244	(progn (end-of-line)
245	(skip-chars-backward " \t")
246	(point)))))
247	len mch lo)
248	(if (string-match (concat "^"
249	(regexp-quote (user-login-name))
250	"\\($\\\|@\\)")
251	from)
252	(save-excursion
253	(goto-char (point-min))
254	(if (not (re-search-forward "^To:[ \t]*" nil t))
255	nil
256	(setq from
257	(concat "to: "
258	(mail-strip-quoted-names
259	(buffer-substring
260	(point)
261	(progn (end-of-line)
262	(skip-chars-backward " \t")
263	(point)))))))))
264	(setq len (length from))
265	(setq mch (string-match "[@%]" from))
266	(format "%25s"
267	(if (or (not mch) (<= len 25))
268	(substring from (max 0 (- len 25)))
269	(substring from
270	(setq lo (cond ((< (- mch 9) 0) 0)
271	((< len (+ mch 16))
272	(- len 25))
273	(t (- mch 9))))
274	(min len (+ lo 25))))))))
275	" #"
276	(if (re-search-forward "^Subject:" nil t)
277	(progn (skip-chars-forward " \t")
278	(buffer-substring (point)
279	(progn (end-of-line)
280	(point))))
281	(re-search-forward "[\n][\n]+" nil t)
282	(buffer-substring (point) (progn (end-of-line) (point))))
283	"\n"))
284
285	(defun rmail-summary-next-all (&optional number)
286	(interactive "p")
287	(forward-line (if number number 1))
288	(rmail-summary-goto-msg))
289
290	(defun rmail-summary-previous-all (&optional number)
291	(interactive "p")
292	(forward-line (- (if number number 1)))
293	(rmail-summary-goto-msg))
294
295	(defun rmail-summary-next-msg (&optional number)
296	(interactive "p")
297	(forward-line 0)
298	(and (> number 0) (forward-line 1))
299	(let ((count (if (< number 0) (- number) number))
300	(search (if (> number 0) 're-search-forward 're-search-backward))
301	end)
302	(while (and (> count 0) (funcall search "^.....[^D]" nil t))
303	(setq count (1- count)))
304	(rmail-summary-goto-msg)))
305
306	(defun rmail-summary-previous-msg (&optional number)
307	(interactive "p")
308	(rmail-summary-next-msg (- (if number number 1))))
309
310	(defun rmail-summary-delete-forward ()
311	(interactive)
312	(let (end)
313	(rmail-summary-goto-msg)
314	(pop-to-buffer rmail-buffer)
315	(rmail-delete-message)
316	(pop-to-buffer rmail-summary-buffer)
317	(let ((buffer-read-only nil))
318	(skip-chars-forward " ")
319	(skip-chars-forward "[0-9]")
320	(delete-char 1)
321	(insert "D"))
322	(rmail-summary-next-msg 1)))
323
324	(defun rmail-summary-delete-backward ()
325	(interactive)
326	(let (end)
327	(rmail-summary-goto-msg)
328	(pop-to-buffer rmail-buffer)
329	(rmail-delete-message)
330	(pop-to-buffer rmail-summary-buffer)
331	(let ((buffer-read-only nil))
332	(skip-chars-forward " ")
333	(skip-chars-forward "[0-9]")
334	(delete-char 1)
335	(insert "D"))
336	(rmail-summary-next-msg -1)))
337
338	(defun rmail-summary-undelete ()
339	(interactive)
340	(let ((buffer-read-only nil))
341	(end-of-line)
342	(cond ((re-search-backward "\\(^ [0-9]\\)\\(D\\)" nil t)
343	(replace-match "\\1 ")
344	(rmail-summary-goto-msg)
345	(pop-to-buffer rmail-buffer)
346	(and (rmail-message-deleted-p rmail-current-message)
347	(rmail-undelete-previous-message))
348	(pop-to-buffer rmail-summary-buffer))
349	(t
350	(rmail-summary-goto-msg)))))
351
352	;; Rmail Summary mode is suitable only for specially formatted data.
353	(put 'rmail-summary-mode 'mode-class 'special)
354
355	(defun rmail-summary-mode ()
356	"Major mode in effect in Rmail summary buffer.
357	A subset of the Rmail mode commands are supported in this mode.
358	As commands are issued in the summary buffer the corresponding
359	mail message is displayed in the rmail buffer.
360
361	n Move to next undeleted message, or arg messages.
362	p Move to previous undeleted message, or arg messages.
363	M-n Move to next, or forward arg messages.
364	M-p Move to previous, or previous arg messages.
365	j Jump to the message at the cursor location.
366	d Delete the message at the cursor location and move to next message.
367	C-d Delete the message at the cursor location and move to previous message.
368	u Undelete this or previous deleted message.
369	q Quit Rmail.
370	x Exit and kill the summary window.
371	space Scroll message in other window forward.
372	delete Scroll message backward.
373
374	Entering this mode calls value of hook variable rmail-summary-mode-hook."
375	(interactive)
376	(kill-all-local-variables)
377	(make-local-variable 'rmail-buffer)
378	(make-local-variable 'rmail-total-messages)
379	(setq major-mode 'rmail-summary-mode)
380	(setq mode-name "RMAIL Summary")
381	(use-local-map rmail-summary-mode-map)
382	(setq truncate-lines t)
383	(setq buffer-read-only t)
384	(set-syntax-table text-mode-syntax-table)
385	(run-hooks 'rmail-summary-mode-hook))
386
387	(defun rmail-summary-goto-msg (&optional n nowarn)
388	(interactive "P")
389	(if (consp n) (setq n (prefix-numeric-value n)))
390	(if (eobp) (forward-line -1))
391	(beginning-of-line)
392	(let ((buf rmail-buffer)
393	(cur (point))
394	(curmsg (string-to-int
395	(buffer-substring (point)
396	(min (point-max) (+ 5 (point)))))))
397	(if (not n)
398	(setq n curmsg)
399	(if (< n 1)
400	(progn (message "No preceding message")
401	(setq n 1)))
402	(if (> n rmail-total-messages)
403	(progn (message "No following message")
404	(goto-char (point-max))
405	(rmail-summary-goto-msg)))
406	(goto-char (point-min))
407	(if (not (re-search-forward (concat "^ *" (int-to-string n)) nil t))
408	(progn (or nowarn (message "Message %d not found" n))
409	(setq n curmsg)
410	(goto-char cur))))
411	(beginning-of-line)
412	(skip-chars-forward " ")
413	(skip-chars-forward "0-9")
414	(save-excursion (if (= (following-char) ?-)
415	(let ((buffer-read-only nil))
416	(delete-char 1)
417	(insert " "))))
418	(beginning-of-line)
419	(pop-to-buffer buf)
420	(rmail-show-message n)
421	(pop-to-buffer rmail-summary-buffer)))
422
423	(defvar rmail-summary-mode-map nil)
424
425	(if rmail-summary-mode-map
426	nil
427	(setq rmail-summary-mode-map (make-keymap))
428	(suppress-keymap rmail-summary-mode-map)
429	(define-key rmail-summary-mode-map "j" 'rmail-summary-goto-msg)
430	(define-key rmail-summary-mode-map "n" 'rmail-summary-next-msg)
431	(define-key rmail-summary-mode-map "p" 'rmail-summary-previous-msg)
432	(define-key rmail-summary-mode-map "\en" 'rmail-summary-next-all)
433	(define-key rmail-summary-mode-map "\ep" 'rmail-summary-previous-all)
434	(define-key rmail-summary-mode-map " " 'rmail-summary-scroll-msg-up)
435	(define-key rmail-summary-mode-map "q" 'rmail-summary-quit)
436	(define-key rmail-summary-mode-map "u" 'rmail-summary-undelete)
437	(define-key rmail-summary-mode-map "x" 'rmail-summary-exit)
438	(define-key rmail-summary-mode-map "\177" 'rmail-summary-scroll-msg-down)
439	(define-key rmail-summary-mode-map "d" 'rmail-summary-delete-forward)
440	(define-key rmail-summary-mode-map "\C-d" 'rmail-summary-delete-backward))
441
442	(defun rmail-summary-scroll-msg-up (&optional dist)
443	"Scroll other window forward."
444	(interactive "P")
445	(let ((window (selected-window))
446	(new-window (display-buffer rmail-buffer)))
447	(unwind-protect
448	(progn
449	(select-window new-window)
450	(scroll-up dist))
451	(select-window window))))
452
453	(defun rmail-summary-scroll-msg-down (&optional dist)
454	"Scroll other window backward."
455	(interactive "P")
456	(let ((window (selected-window))
457	(new-window (display-buffer rmail-buffer)))
458	(unwind-protect
459	(progn
460	(select-window new-window)
461	(scroll-down dist))
462	(select-window window))))
463
464	(defun rmail-summary-quit ()
465	"Quit out of rmail and rmail summary."
466	(interactive)
467	(rmail-summary-exit)
468	(rmail-quit))
469
470	(defun rmail-summary-exit ()
471	"Exit rmail summary, remaining within rmail."
472	(interactive)
473	(bury-buffer (current-buffer))
474	(if (get-buffer-window rmail-buffer)
475	;; Select the window with rmail in it, then delete this window.
476	(select-window (prog1
477	(get-buffer-window rmail-buffer)
478	(delete-window (selected-window))))
479	;; Switch to the rmail buffer in this window.
480	(switch-to-buffer rmail-buffer)))
c88ab9ce ER	481
c88ab9ce ER	482	;;; rmailsum.el ends here