X-Git-Url: https://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fnnmbox.el;h=8afd19a31750e254d1c6760eb3ef93b46c7e1f55;hb=1ee2ecae3865ac2e6a556ac0844b5da67c05a9d7;hp=171463740dbb2f7885a1011ed29be5bf36f8e5b9;hpb=43c968158c6017142040b4533c65b97be9e0fb03;p=gnus diff --git a/lisp/nnmbox.el b/lisp/nnmbox.el index 171463740..8afd19a31 100644 --- a/lisp/nnmbox.el +++ b/lisp/nnmbox.el @@ -1,8 +1,10 @@ ;;; nnmbox.el --- mail mbox access for Gnus -;; Copyright (C) 1995,96 Free Software Foundation, Inc. -;; Author: Lars Magne Ingebrigtsen -;; Masanobu UMEDA +;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 +;; Free Software Foundation, Inc. + +;; Author: Lars Magne Ingebrigtsen +;; Masanobu UMEDA ;; Keywords: news, mail ;; This file is part of GNU Emacs. @@ -12,11 +14,6 @@ ;; 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, @@ -25,7 +22,7 @@ ;;; Commentary: ;; For an overview of what the interface functions do, please see the -;; Gnus sources. +;; Gnus sources. ;;; Code: @@ -33,6 +30,7 @@ (require 'message) (require 'nnmail) (require 'nnoo) +(require 'gnus-range) (eval-when-compile (require 'cl)) (nnoo-declare nnmbox) @@ -57,13 +55,20 @@ (defvoo nnmbox-current-group nil "Current nnmbox news group directory.") -(defconst nnmbox-mbox-buffer nil) +(defvar nnmbox-mbox-buffer nil) (defvoo nnmbox-status-string "") (defvoo nnmbox-group-alist nil) (defvoo nnmbox-active-timestamp nil) +(defvoo nnmbox-file-coding-system mm-binary-coding-system) +(defvoo nnmbox-file-coding-system-for-write nil) +(defvoo nnmbox-active-file-coding-system mm-binary-coding-system) +(defvoo nnmbox-active-file-coding-system-for-write nil) + +(defvar nnmbox-group-building-active-articles nil) +(defvar nnmbox-group-active-articles nil) ;;; Interface functions @@ -76,28 +81,24 @@ (erase-buffer) (let ((number (length sequence)) (count 0) - article art-string start stop) + article start stop) (nnmbox-possibly-change-newsgroup newsgroup server) (while sequence (setq article (car sequence)) - (setq art-string (nnmbox-article-string article)) (set-buffer nnmbox-mbox-buffer) - (if (or (search-forward art-string nil t) - (progn (goto-char (point-min)) - (search-forward art-string nil t))) - (progn - (setq start - (save-excursion - (re-search-backward - (concat "^" message-unix-mail-delimiter) nil t) - (point))) - (search-forward "\n\n" nil t) - (setq stop (1- (point))) - (set-buffer nntp-server-buffer) - (insert (format "221 %d Article retrieved.\n" article)) - (insert-buffer-substring nnmbox-mbox-buffer start stop) - (goto-char (point-max)) - (insert ".\n"))) + (when (nnmbox-find-article article) + (setq start + (save-excursion + (re-search-backward + (concat "^" message-unix-mail-delimiter) nil t) + (point))) + (search-forward "\n\n" nil t) + (setq stop (1- (point))) + (set-buffer nntp-server-buffer) + (insert (format "221 %d Article retrieved.\n" article)) + (insert-buffer-substring nnmbox-mbox-buffer start stop) + (goto-char (point-max)) + (insert ".\n")) (setq sequence (cdr sequence)) (setq count (1+ count)) (and (numberp nnmail-large-newsgroup) @@ -116,7 +117,8 @@ (deffoo nnmbox-open-server (server &optional defs) (nnoo-change-server 'nnmbox server defs) - (cond + (nnmbox-create-mbox) + (cond ((not (file-exists-p nnmbox-mbox-file)) (nnmbox-close-server) (nnheader-report 'nnmbox "No such file: %s" nnmbox-mbox-file)) @@ -146,33 +148,33 @@ (nnmbox-possibly-change-newsgroup newsgroup server) (save-excursion (set-buffer nnmbox-mbox-buffer) - (goto-char (point-min)) - (if (search-forward (nnmbox-article-string article) nil t) - (let (start stop) - (re-search-backward (concat "^" message-unix-mail-delimiter) nil t) - (setq start (point)) - (forward-line 1) - (or (and (re-search-forward - (concat "^" message-unix-mail-delimiter) nil t) - (forward-line -1)) - (goto-char (point-max))) - (setq stop (point)) - (let ((nntp-server-buffer (or buffer nntp-server-buffer))) - (set-buffer nntp-server-buffer) - (erase-buffer) - (insert-buffer-substring nnmbox-mbox-buffer start stop) - (goto-char (point-min)) - (while (looking-at "From ") - (delete-char 5) - (insert "X-From-Line: ") - (forward-line 1)) - (if (numberp article) - (cons nnmbox-current-group article) - (nnmbox-article-group-number))))))) + (when (nnmbox-find-article article) + (let (start stop) + (re-search-backward (concat "^" message-unix-mail-delimiter) nil t) + (setq start (point)) + (forward-line 1) + (or (and (re-search-forward + (concat "^" message-unix-mail-delimiter) nil t) + (forward-line -1)) + (goto-char (point-max))) + (setq stop (point)) + (let ((nntp-server-buffer (or buffer nntp-server-buffer))) + (set-buffer nntp-server-buffer) + (erase-buffer) + (insert-buffer-substring nnmbox-mbox-buffer start stop) + (goto-char (point-min)) + (while (looking-at "From ") + (delete-char 5) + (insert "X-From-Line: ") + (forward-line 1)) + (if (numberp article) + (cons nnmbox-current-group article) + (nnmbox-article-group-number nil))))))) (deffoo nnmbox-request-group (group &optional server dont-check) + (nnmbox-possibly-change-newsgroup nil server) (let ((active (cadr (assoc group nnmbox-group-alist)))) - (cond + (cond ((or (null active) (null (nnmbox-possibly-change-newsgroup group server))) (nnheader-report 'nnmbox "No such group: %s" group)) @@ -181,34 +183,59 @@ (nnheader-insert "")) (t (nnheader-report 'nnmbox "Selected group %s" group) - (nnheader-insert "211 %d %d %d %s\n" + (nnheader-insert "211 %d %d %d %s\n" (1+ (- (cdr active) (car active))) (car active) (cdr active) group))))) +(defun nnmbox-save-buffer () + (let ((coding-system-for-write + (or nnmbox-file-coding-system-for-write + nnmbox-file-coding-system))) + (save-buffer))) + +(defun nnmbox-save-active (group-alist active-file) + (let ((nnmail-active-file-coding-system + (or nnmbox-active-file-coding-system-for-write + nnmbox-active-file-coding-system))) + (nnmail-save-active group-alist active-file))) + (deffoo nnmbox-request-scan (&optional group server) + (nnmbox-possibly-change-newsgroup group server) (nnmbox-read-mbox) - (nnmail-get-new-mail - 'nnmbox + (nnmail-get-new-mail + 'nnmbox (lambda () (save-excursion (set-buffer nnmbox-mbox-buffer) - (save-buffer))) - nnmbox-mbox-file group + (nnmbox-save-buffer))) + (file-name-directory nnmbox-mbox-file) + group (lambda () (save-excursion (let ((in-buf (current-buffer))) (set-buffer nnmbox-mbox-buffer) (goto-char (point-max)) (insert-buffer-substring in-buf))) - (nnmail-save-active nnmbox-group-alist nnmbox-active-file)))) + (nnmbox-save-active nnmbox-group-alist nnmbox-active-file)))) (deffoo nnmbox-close-group (group &optional server) t) +(deffoo nnmbox-request-create-group (group &optional server args) + (nnmail-activate 'nnmbox) + (unless (assoc group nnmbox-group-alist) + (push (list group (cons 1 0)) + nnmbox-group-alist) + (nnmbox-save-active nnmbox-group-alist nnmbox-active-file)) + t) + (deffoo nnmbox-request-list (&optional server) (save-excursion - (nnmail-find-file nnmbox-active-file) - (setq nnmbox-group-alist (nnmail-get-active)))) + (let ((nnmail-file-coding-system + nnmbox-active-file-coding-system)) + (nnmail-find-file nnmbox-active-file)) + (setq nnmbox-group-alist (nnmail-get-active)) + t)) (deffoo nnmbox-request-newgroups (date &optional server) (nnmbox-request-list server)) @@ -216,68 +243,70 @@ (deffoo nnmbox-request-list-newsgroups (&optional server) (nnheader-report 'nnmbox "LIST NEWSGROUPS is not implemented.")) -(deffoo nnmbox-request-expire-articles - (articles newsgroup &optional server force) +(deffoo nnmbox-request-expire-articles + (articles newsgroup &optional server force) (nnmbox-possibly-change-newsgroup newsgroup server) (let* ((is-old t) rest) (nnmail-activate 'nnmbox) - (save-excursion + (save-excursion (set-buffer nnmbox-mbox-buffer) (while (and articles is-old) - (goto-char (point-min)) - (if (search-forward (nnmbox-article-string (car articles)) nil t) - (if (setq is-old - (nnmail-expired-article-p - newsgroup - (buffer-substring - (point) (progn (end-of-line) (point))) force)) - (progn - (nnheader-message 5 "Deleting article %d in %s..." - (car articles) newsgroup) - (nnmbox-delete-mail)) - (setq rest (cons (car articles) rest)))) + (when (nnmbox-find-article (car articles)) + (if (setq is-old + (nnmail-expired-article-p + newsgroup + (buffer-substring + (point) (progn (end-of-line) (point))) force)) + (progn + (unless (eq nnmail-expiry-target 'delete) + (with-temp-buffer + (nnmbox-request-article (car articles) + newsgroup server + (current-buffer)) + (let ((nnml-current-directory nil)) + (nnmail-expiry-target-group + nnmail-expiry-target newsgroup))) + (nnmbox-possibly-change-newsgroup newsgroup server)) + (nnheader-message 5 "Deleting article %d in %s..." + (car articles) newsgroup) + (nnmbox-delete-mail)) + (push (car articles) rest))) (setq articles (cdr articles))) - (save-buffer) + (nnmbox-save-buffer) ;; Find the lowest active article in this group. (let ((active (nth 1 (assoc newsgroup nnmbox-group-alist)))) - (goto-char (point-min)) - (while (and (not (search-forward - (nnmbox-article-string (car active)) nil t)) + (while (and (not (nnmbox-find-article (car active))) (<= (car active) (cdr active))) - (setcar active (1+ (car active))) - (goto-char (point-min)))) - (nnmail-save-active nnmbox-group-alist nnmbox-active-file) + (setcar active (1+ (car active))))) + (nnmbox-save-active nnmbox-group-alist nnmbox-active-file) (nconc rest articles)))) (deffoo nnmbox-request-move-article - (article group server accept-form &optional last) - (nnmbox-possibly-change-newsgroup group server) + (article group server accept-form &optional last) (let ((buf (get-buffer-create " *nnmbox move*")) result) - (and + (and (nnmbox-request-article article group server) (save-excursion (set-buffer buf) - (buffer-disable-undo (current-buffer)) (erase-buffer) (insert-buffer-substring nntp-server-buffer) (goto-char (point-min)) - (while (re-search-forward - "^X-Gnus-Newsgroup:" + (while (re-search-forward + "^X-Gnus-Newsgroup:" (save-excursion (search-forward "\n\n" nil t) (point)) t) - (delete-region (progn (beginning-of-line) (point)) - (progn (forward-line 1) (point)))) + (gnus-delete-line)) (setq result (eval accept-form)) (kill-buffer buf) result) (save-excursion + (nnmbox-possibly-change-newsgroup group server) (set-buffer nnmbox-mbox-buffer) - (goto-char (point-min)) - (if (search-forward (nnmbox-article-string article) nil t) - (nnmbox-delete-mail)) - (and last (save-buffer)))) + (when (nnmbox-find-article article) + (nnmbox-delete-mail)) + (and last (nnmbox-save-buffer)))) result)) (deffoo nnmbox-request-accept-article (group &optional server last) @@ -286,10 +315,13 @@ (let ((buf (current-buffer)) result) (goto-char (point-min)) + ;; The From line may have been quoted by movemail. + (when (looking-at (concat ">" message-unix-mail-delimiter)) + (delete-char 1)) (if (looking-at "X-From-Line: ") (replace-match "From ") (insert "From nobody " (current-time-string) "\n")) - (and + (and (nnmail-activate 'nnmbox) (progn (set-buffer buf) @@ -298,26 +330,38 @@ (forward-line -1) (while (re-search-backward "^X-Gnus-Newsgroup: " nil t) (delete-region (point) (progn (forward-line 1) (point)))) - (setq result (nnmbox-save-mail (and (stringp group) group)))) + (when nnmail-cache-accepted-message-ids + (nnmail-cache-insert (nnmail-fetch-field "message-id") + group + (nnmail-fetch-field "subject") + (nnmail-fetch-field "from"))) + (setq result (if (stringp group) + (list (cons group (nnmbox-active-number group))) + (nnmail-article-group 'nnmbox-active-number))) + (if (and (null result) + (yes-or-no-p "Moved to `junk' group; delete article? ")) + (setq result 'junk) + (setq result (car (nnmbox-save-mail result))))) (save-excursion (set-buffer nnmbox-mbox-buffer) (goto-char (point-max)) (insert-buffer-substring buf) - (and last (save-buffer)) - result) - (nnmail-save-active nnmbox-group-alist nnmbox-active-file)) - (car result))) + (when last + (when nnmail-cache-accepted-message-ids + (nnmail-cache-close)) + (nnmbox-save-active nnmbox-group-alist nnmbox-active-file) + (nnmbox-save-buffer)))) + result)) (deffoo nnmbox-request-replace-article (article group buffer) (nnmbox-possibly-change-newsgroup group) (save-excursion (set-buffer nnmbox-mbox-buffer) - (goto-char (point-min)) - (if (not (search-forward (nnmbox-article-string article) nil t)) + (if (not (nnmbox-find-article article)) nil (nnmbox-delete-mail t t) (insert-buffer-substring buffer) - (save-buffer) + (nnmbox-save-buffer) t))) (deffoo nnmbox-request-delete-group (group &optional force server) @@ -334,13 +378,14 @@ (while (search-forward ident nil t) (setq found t) (nnmbox-delete-mail)) - (and found (save-buffer))))) + (when found + (nnmbox-save-buffer))))) ;; Remove the group from all structures. - (setq nnmbox-group-alist + (setq nnmbox-group-alist (delq (assoc group nnmbox-group-alist) nnmbox-group-alist) nnmbox-current-group nil) ;; Save the active file. - (nnmail-save-active nnmbox-group-alist nnmbox-active-file) + (nnmbox-save-active nnmbox-group-alist nnmbox-active-file) t) (deffoo nnmbox-request-rename-group (group new-name &optional server) @@ -354,26 +399,33 @@ (while (search-forward ident nil t) (replace-match new-ident t t) (setq found t)) - (and found (save-buffer)))) + (when found + (nnmbox-save-buffer)))) + (let ((entry (assoc group nnmbox-group-active-articles))) + (when entry + (setcar entry new-name))) (let ((entry (assoc group nnmbox-group-alist))) - (and entry (setcar entry new-name)) + (when entry + (setcar entry new-name)) (setq nnmbox-current-group nil) ;; Save the new group alist. - (nnmail-save-active nnmbox-group-alist nnmbox-active-file) + (nnmbox-save-active nnmbox-group-alist nnmbox-active-file) t)) ;;; Internal functions. ;; If FORCE, delete article no matter how many X-Gnus-Newsgroup -;; headers there are. If LEAVE-DELIM, don't delete the Unix mbox +;; headers there are. If LEAVE-DELIM, don't delete the Unix mbox ;; delimiter line. (defun nnmbox-delete-mail (&optional force leave-delim) ;; Delete the current X-Gnus-Newsgroup line. + ;; First delete record of active article, unless the article is being + ;; replaced, indicated by FORCE being non-nil. + (if (not force) + (nnmbox-record-deleted-article (nnmbox-article-group-number t))) (or force - (delete-region - (progn (beginning-of-line) (point)) - (progn (forward-line 1) (point)))) + (gnus-delete-line)) ;; Beginning of the article. (save-excursion (save-restriction @@ -384,56 +436,120 @@ (match-beginning 0))) (progn (forward-line 1) - (or (and (re-search-forward (concat "^" message-unix-mail-delimiter) + (or (and (re-search-forward (concat "^" message-unix-mail-delimiter) nil t) (if (and (not (bobp)) leave-delim) (progn (forward-line -2) (point)) (match-beginning 0))) (point-max)))) (goto-char (point-min)) - ;; Only delete the article if no other groups owns it as well. - (if (or force (not (re-search-forward "^X-Gnus-Newsgroup: " nil t))) - (delete-region (point-min) (point-max)))))) + ;; Only delete the article if no other group owns it as well. + (when (or force (not (re-search-forward "^X-Gnus-Newsgroup: " nil t))) + (delete-region (point-min) (point-max)))))) (defun nnmbox-possibly-change-newsgroup (newsgroup &optional server) - (when (and server + (when (and server (not (nnmbox-server-opened server))) (nnmbox-open-server server)) - (if (or (not nnmbox-mbox-buffer) - (not (buffer-name nnmbox-mbox-buffer))) - (save-excursion - (set-buffer (setq nnmbox-mbox-buffer - (nnheader-find-file-noselect - nnmbox-mbox-file nil 'raw))) - (buffer-disable-undo (current-buffer)))) - (if (not nnmbox-group-alist) - (nnmail-activate 'nnmbox)) + (when (or (not nnmbox-mbox-buffer) + (not (buffer-name nnmbox-mbox-buffer))) + (nnmbox-read-mbox)) + (when (not nnmbox-group-alist) + (nnmail-activate 'nnmbox)) (if newsgroup - (if (assoc newsgroup nnmbox-group-alist) - (setq nnmbox-current-group newsgroup)) + (when (assoc newsgroup nnmbox-group-alist) + (setq nnmbox-current-group newsgroup)) t)) (defun nnmbox-article-string (article) (if (numberp article) - (concat "\nX-Gnus-Newsgroup: " nnmbox-current-group ":" + (concat "\nX-Gnus-Newsgroup: " nnmbox-current-group ":" (int-to-string article) " ") (concat "\nMessage-ID: " article))) -(defun nnmbox-article-group-number () +(defun nnmbox-article-group-number (this-line) (save-excursion - (goto-char (point-min)) - (and (re-search-forward "^X-Gnus-Newsgroup: +\\([^:]+\\):\\([0-9]+\\) " - nil t) - (cons (buffer-substring (match-beginning 1) (match-end 1)) - (string-to-int - (buffer-substring (match-beginning 2) (match-end 2))))))) - -(defun nnmbox-save-mail (&optional group) + (if this-line + (beginning-of-line) + (goto-char (point-min))) + (when (re-search-forward "^X-Gnus-Newsgroup: +\\([^:]+\\):\\([0-9]+\\) " + nil t) + (cons (buffer-substring (match-beginning 1) (match-end 1)) + (string-to-int + (buffer-substring (match-beginning 2) (match-end 2))))))) + +(defun nnmbox-in-header-p (pos) + "Return non-nil if POS is in the header of an article." + (save-excursion + (goto-char pos) + (re-search-backward (concat "^" message-unix-mail-delimiter) nil t) + (search-forward "\n\n" nil t) + (< pos (point)))) + +(defun nnmbox-find-article (article) + "Leaves point on the relevant X-Gnus-Newsgroup line if found." + ;; Check that article is in the active range first, to avoid an + ;; expensive exhaustive search if it isn't. + (if (and (numberp article) + (not (nnmbox-is-article-active-p article))) + nil + (let ((art-string (nnmbox-article-string article)) + (found nil)) + ;; There is the possibility that the X-Gnus-Newsgroup line appears + ;; in the body of an article (for instance, if an article has been + ;; forwarded from someone using Gnus as their mailer), so check + ;; that the line is actually part of the article header. + (or (and (search-forward art-string nil t) + (nnmbox-in-header-p (point))) + (progn + (goto-char (point-min)) + (while (and (not found) + (search-forward art-string nil t)) + (setq found (nnmbox-in-header-p (point)))) + found))))) + +(defun nnmbox-record-active-article (group-art) + (let* ((group (car group-art)) + (article (cdr group-art)) + (entry + (or (assoc group nnmbox-group-active-articles) + (progn + (push (list group) + nnmbox-group-active-articles) + (car nnmbox-group-active-articles))))) + ;; add article to index, either by building complete list + ;; in reverse order, or as a list of ranges. + (if (not nnmbox-group-building-active-articles) + (setcdr entry (gnus-add-to-range (cdr entry) (list article))) + (when (memq article (cdr entry)) + (switch-to-buffer nnmbox-mbox-buffer) + (error "Article %s:%d already exists!" group article)) + (when (and (cadr entry) (< article (cadr entry))) + (switch-to-buffer nnmbox-mbox-buffer) + (error "Article %s:%d out of order" group article)) + (setcdr entry (cons article (cdr entry)))))) + +(defun nnmbox-record-deleted-article (group-art) + (let* ((group (car group-art)) + (article (cdr group-art)) + (entry + (or (assoc group nnmbox-group-active-articles) + (progn + (push (list group) + nnmbox-group-active-articles) + (car nnmbox-group-active-articles))))) + ;; remove article from index + (setcdr entry (gnus-remove-from-range (cdr entry) (list article))))) + +(defun nnmbox-is-article-active-p (article) + (gnus-member-of-range + article + (cdr (assoc nnmbox-current-group + nnmbox-group-active-articles)))) + +(defun nnmbox-save-mail (group-art) "Called narrowed to an article." - (let* ((nnmail-split-methods - (if group (list (list group "")) nnmail-split-methods)) - (group-art (nreverse (nnmail-article-group 'nnmbox-active-number))) - (delim (concat "^" message-unix-mail-delimiter))) + (let ((delim (concat "^" message-unix-mail-delimiter))) (goto-char (point-min)) ;; This might come from somewhere else. (unless (looking-at delim) @@ -447,6 +563,10 @@ (nnmail-insert-lines) (nnmail-insert-xref group-art) (nnmbox-insert-newsgroup-line group-art) + (let ((alist group-art)) + (while alist + (nnmbox-record-active-article (car alist)) + (setq alist (cdr alist)))) (run-hooks 'nnmail-prepare-save-mail-hook) (run-hooks 'nnmbox-prepare-save-mail-hook) group-art)) @@ -454,14 +574,13 @@ (defun nnmbox-insert-newsgroup-line (group-art) (save-excursion (goto-char (point-min)) - (if (search-forward "\n\n" nil t) - (progn - (forward-char -1) - (while group-art - (insert (format "X-Gnus-Newsgroup: %s:%d %s\n" - (caar group-art) (cdar group-art) - (current-time-string))) - (setq group-art (cdr group-art))))) + (when (search-forward "\n\n" nil t) + (forward-char -1) + (while group-art + (insert (format "X-Gnus-Newsgroup: %s:%d %s\n" + (caar group-art) (cdar group-art) + (current-time-string))) + (setq group-art (cdr group-art)))) t)) (defun nnmbox-active-number (group) @@ -472,61 +591,107 @@ ;; This group is new, so we create a new entry for it. ;; This might be a bit naughty... creating groups on the drop of ;; a hat, but I don't know... - (setq nnmbox-group-alist (cons (list group (setq active (cons 1 1))) - nnmbox-group-alist))) + (push (list group (setq active (cons 1 1))) + nnmbox-group-alist)) (cdr active))) +(defun nnmbox-create-mbox () + (when (not (file-exists-p nnmbox-mbox-file)) + (let ((nnmail-file-coding-system + (or nnmbox-file-coding-system-for-write + nnmbox-file-coding-system)) + (dir (file-name-directory nnmbox-mbox-file))) + (and dir (gnus-make-directory dir)) + (nnmail-write-region (point-min) (point-min) + nnmbox-mbox-file t 'nomesg)))) + (defun nnmbox-read-mbox () (nnmail-activate 'nnmbox) - (if (not (file-exists-p nnmbox-mbox-file)) - (write-region 1 1 nnmbox-mbox-file t 'nomesg)) + (nnmbox-create-mbox) (if (and nnmbox-mbox-buffer (buffer-name nnmbox-mbox-buffer) (sav