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[gnus] / lisp / nnbabyl.el
index 58d23b5..b6567f9 100644 (file)
 (require 'nnheader)
 (require 'rmail)
 (require 'nnmail)
+(require 'nnoo)
+(eval-when-compile (require 'cl))
 
-(defvar nnbabyl-mbox-file (expand-file-name "~/RMAIL")
+(nnoo-declare nnbabyl)
+
+(defvoo nnbabyl-mbox-file (expand-file-name "~/RMAIL")
   "The name of the rmail box file in the users home directory.")
 
-(defvar nnbabyl-active-file (expand-file-name "~/.rmail-active")
+(defvoo nnbabyl-active-file (expand-file-name "~/.rmail-active")
   "The name of the active file for the rmail box.")
 
-(defvar nnbabyl-get-new-mail t
+(defvoo nnbabyl-get-new-mail t
   "If non-nil, nnbabyl will check the incoming mail file and split the mail.")
 
-(defvar nnbabyl-prepare-save-mail-hook nil
+(defvoo nnbabyl-prepare-save-mail-hook nil
   "Hook run narrowed to an article before saving.")
 
 \f
 (defconst nnbabyl-version "nnbabyl 1.0"
   "nnbabyl version.")
 
-(defvar nnbabyl-mbox-buffer nil)
-(defvar nnbabyl-current-group nil)
-(defvar nnbabyl-status-string "")
-(defvar nnbabyl-group-alist nil)
-(defvar nnbabyl-active-timestamp nil)
-
-(defvar nnbabyl-previous-buffer-mode nil)
+(defvoo nnbabyl-mbox-buffer nil)
+(defvoo nnbabyl-current-group nil)
+(defvoo nnbabyl-status-string "")
+(defvoo nnbabyl-group-alist nil)
+(defvoo nnbabyl-active-timestamp nil)
 
-\f
+(defvoo nnbabyl-previous-buffer-mode nil)
 
-(defvar nnbabyl-current-server nil)
-(defvar nnbabyl-server-alist nil)
-(defvar nnbabyl-server-variables 
-  (list
-   (list 'nnbabyl-mbox-file nnbabyl-mbox-file)
-   (list 'nnbabyl-active-file nnbabyl-active-file)
-   (list 'nnbabyl-get-new-mail nnbabyl-get-new-mail)
-   '(nnbabyl-current-group nil)
-   '(nnbabyl-status-string "")
-   '(nnbabyl-previous-buffer-mode nil)
-   '(nnbabyl-group-alist nil)))
+(eval-and-compile
+  (autoload 'gnus-set-text-properties "gnus-ems"))
 
 \f
 
 ;;; Interface functions
 
-(defun nnbabyl-retrieve-headers (sequence &optional newsgroup server fetch-old)
+(nnoo-define-basics nnbabyl)
+
+(deffoo nnbabyl-retrieve-headers (sequence &optional newsgroup server fetch-old)
   (save-excursion
     (set-buffer nntp-server-buffer)
     (erase-buffer)
     (let ((number (length sequence))
          (count 0)
          article art-string start stop)
-      (nnbabyl-possibly-change-newsgroup newsgroup)
+      (nnbabyl-possibly-change-newsgroup newsgroup server)
       (while sequence
        (setq article (car sequence))
        (setq art-string (nnbabyl-article-string article))
       (nnheader-fold-continuation-lines)
       'headers)))
 
-(defun nnbabyl-open-server (server &optional defs)
-  (nnheader-init-server-buffer)
-  (if (equal server nnbabyl-current-server)
-      t
-    (if nnbabyl-current-server
-       (setq nnbabyl-server-alist 
-             (cons (list nnbabyl-current-server
-                         (nnheader-save-variables nnbabyl-server-variables))
-                   nnbabyl-server-alist)))
-    (let ((state (assoc server nnbabyl-server-alist)))
-      (if state 
-         (progn
-           (nnheader-restore-variables (nth 1 state))
-           (setq nnbabyl-server-alist (delq state nnbabyl-server-alist)))
-       (nnheader-set-init-variables nnbabyl-server-variables defs)))
-    (setq nnbabyl-current-server server)))
-
-(defun nnbabyl-close-server (&optional server)
+(deffoo nnbabyl-open-server (server &optional defs)
+  (nnoo-change-server 'nnbabyl server defs)
+  (cond 
+   ((not (file-exists-p nnbabyl-mbox-file))
+    (nnbabyl-close-server)
+    (nnheader-report 'nnbabyl "No such file: %s" nnbabyl-mbox-file))
+   ((file-directory-p nnbabyl-mbox-file)
+    (nnbabyl-close-server)
+    (nnheader-report 'nnbabyl "Not a regular file: %s" nnbabyl-mbox-file))
+   (t
+    (nnheader-report 'nnbabyl "Opened server %s using mbox %s" server
+                    nnbabyl-mbox-file)
+    t)))
+
+(deffoo nnbabyl-close-server (&optional server)
   ;; Restore buffer mode.
   (when (and (nnbabyl-server-opened)
             nnbabyl-previous-buffer-mode)
     (save-excursion
       (set-buffer nnbabyl-mbox-buffer)
       (narrow-to-region
-       (car (car nnbabyl-previous-buffer-mode))
-       (cdr (car nnbabyl-previous-buffer-mode)))
+       (caar nnbabyl-previous-buffer-mode)
+       (cdar nnbabyl-previous-buffer-mode))
       (funcall (cdr nnbabyl-previous-buffer-mode))))
-  (setq nnbabyl-current-server nil
-       nnbabyl-mbox-buffer nil)
+  (nnoo-close-server 'nnbabyl server)
+  (setq nnbabyl-mbox-buffer nil)
   t)
 
-(defun nnbabyl-server-opened (&optional server)
-  (and (equal server nnbabyl-current-server)
+(deffoo nnbabyl-server-opened (&optional server)
+  (and (nnoo-current-server-p 'nnbabyl server)
        nnbabyl-mbox-buffer
        (buffer-name nnbabyl-mbox-buffer)
        nntp-server-buffer
        (buffer-name nntp-server-buffer)))
 
-(defun nnbabyl-status-message (&optional server)
-  nnbabyl-status-string)
-
-(defun nnbabyl-request-article (article &optional newsgroup server buffer)
-  (nnbabyl-possibly-change-newsgroup newsgroup)
+(deffoo nnbabyl-request-article (article &optional newsgroup server buffer)
+  (nnbabyl-possibly-change-newsgroup newsgroup server)
   (save-excursion
     (set-buffer nnbabyl-mbox-buffer)
     (goto-char (point-min))
                (cons nnbabyl-current-group article)
              (nnbabyl-article-group-number)))))))
 
-(defun nnbabyl-request-group (group &optional server dont-check)
+(deffoo nnbabyl-request-group (group &optional server dont-check)
   (let ((active (cadr (assoc group nnbabyl-group-alist))))
     (save-excursion
       (cond 
        ((null active)
        (nnheader-report 'nnbabyl "No such group: %s" group))
-       ((null (nnbabyl-possibly-change-newsgroup group))
+       ((null (nnbabyl-possibly-change-newsgroup group server))
        (nnheader-report 'nnbabyl "No such group: %s" group))
        (dont-check
        (nnheader-report 'nnbabyl "Selected group %s" group)
                         (car active) (cdr active) group)
        t)))))
 
-(defun nnbabyl-request-scan (&optional group server)
+(deffoo nnbabyl-request-scan (&optional group server)
   (nnbabyl-read-mbox)
   (nnmail-get-new-mail 
    'nnbabyl 
         (goto-char (match-end 0))
         (insert-buffer-substring in-buf))))))
 
-(defun nnbabyl-close-group (group &optional server)
+(deffoo nnbabyl-close-group (group &optional server)
   t)
 
-(defun nnbabyl-request-create-group (group &optional server) 
+(deffoo nnbabyl-request-create-group (group &optional server) 
   (nnmail-activate 'nnbabyl)
-  (or (assoc group nnbabyl-group-alist)
-      (let (active)
-       (setq nnbabyl-group-alist (cons (list group (setq active (cons 1 0)))
-                                       nnbabyl-group-alist))
-       (nnmail-save-active nnbabyl-group-alist nnbabyl-active-file)))
+  (unless (assoc group nnbabyl-group-alist)
+    (setq nnbabyl-group-alist (cons (list group (cons 1 0))
+                                   nnbabyl-group-alist))
+    (nnmail-save-active nnbabyl-group-alist nnbabyl-active-file))
   t)
 
-(defun nnbabyl-request-list (&optional server)
+(deffoo nnbabyl-request-list (&optional server)
   (save-excursion
     (or (nnmail-find-file nnbabyl-active-file)
        (progn
          (nnmail-save-active nnbabyl-group-alist nnbabyl-active-file)
          (nnmail-find-file nnbabyl-active-file)))))
 
-(defun nnbabyl-request-newgroups (date &optional server)
+(deffoo nnbabyl-request-newgroups (date &optional server)
   (nnbabyl-request-list server))
 
-(defun nnbabyl-request-list-newsgroups (&optional server)
-  (setq nnbabyl-status-string "nnbabyl: LIST NEWSGROUPS is not implemented.")
-  nil)
-
-(defun nnbabyl-request-post (&optional server)
-  (mail-send-and-exit nil))
+(deffoo nnbabyl-request-list-newsgroups (&optional server)
+  (nnheader-report 'nnbabyl "nnbabyl: LIST NEWSGROUPS is not implemented."))
 
-(defun nnbabyl-request-expire-articles
+(deffoo nnbabyl-request-expire-articles
   (articles newsgroup &optional server force)
-  (nnbabyl-possibly-change-newsgroup newsgroup)
+  (nnbabyl-possibly-change-newsgroup newsgroup server)
   (let* ((is-old t)
         rest)
     (nnmail-activate 'nnbabyl)
 
     (save-excursion 
       (set-buffer nnbabyl-mbox-buffer)
-      (set-text-properties (point-min) (point-max) nil)
+      (gnus-set-text-properties (point-min) (point-max) nil)
       (while (and articles is-old)
        (goto-char (point-min))
        (if (search-forward (nnbabyl-article-string (car articles)) nil t)
       (nnmail-save-active nnbabyl-group-alist nnbabyl-active-file)
       (nconc rest articles))))
 
-(defun nnbabyl-request-move-article 
+(deffoo nnbabyl-request-move-article 
   (article group server accept-form &optional last)
-  (nnbabyl-possibly-change-newsgroup group)
+  (nnbabyl-possibly-change-newsgroup group server)
   (let ((buf (get-buffer-create " *nnbabyl move*"))
        result)
     (and 
        (and last (save-buffer))))
     result))
 
-(defun nnbabyl-request-accept-article (group &optional last)
+(deffoo nnbabyl-request-accept-article (group &optional server last)
+  (nnbabyl-possibly-change-newsgroup group server)
   (let ((buf (current-buffer))
        result beg)
     (and 
                    nnbabyl-group-alist nnbabyl-active-file)))
        result))))
 
-(defun nnbabyl-request-replace-article (article group buffer)
+(deffoo nnbabyl-request-replace-article (article group buffer)
   (nnbabyl-possibly-change-newsgroup group)
   (save-excursion
     (set-buffer nnbabyl-mbox-buffer)
       (save-buffer)
       t)))
 
-(defun nnbabyl-request-delete-group (group &optional force server)
-  (nnbabyl-possibly-change-newsgroup group)
+(deffoo nnbabyl-request-delete-group (group &optional force server)
+  (nnbabyl-possibly-change-newsgroup group server)
   ;; Delete all articles in GROUP.
   (if (not force)
       ()                               ; Don't delete the articles.
   (nnmail-save-active nnbabyl-group-alist nnbabyl-active-file)
   t)
 
-(defun nnbabyl-request-rename-group (group new-name &optional server)
-  (nnbabyl-possibly-change-newsgroup group)
+(deffoo nnbabyl-request-rename-group (group new-name &optional server)
+  (nnbabyl-possibly-change-newsgroup group server)
   (save-excursion
     (set-buffer nnbabyl-mbox-buffer)
     (goto-char (point-min))
       (if (or force (not (re-search-forward "^X-Gnus-Newsgroup: " nil t)))
          (delete-region (point-min) (point-max))))))
 
-(defun nnbabyl-possibly-change-newsgroup (newsgroup)
+(defun nnbabyl-possibly-change-newsgroup (newsgroup &optional server)
+  (when (and server 
+            (not (nnbabyl-server-opened server)))
+    (nnbabyl-open-server server))
   (if (or (not nnbabyl-mbox-buffer)
          (not (buffer-name nnbabyl-mbox-buffer)))
       (save-excursion (nnbabyl-read-mbox)))
   (if newsgroup
       (if (assoc newsgroup nnbabyl-group-alist)
          (setq nnbabyl-current-group newsgroup)
-       (setq nnbabyl-status-string "No such group in file")
-       nil)
+       (nnheader-report 'nnbabyl "No such group in file"))
     t))
 
 (defun nnbabyl-article-string (article)
          (forward-char -1)
          (while group-art
            (insert (format "X-Gnus-Newsgroup: %s:%d   %s\n" 
-                           (car (car group-art)) (cdr (car group-art))
+                           (caar group-art) (cdar group-art)
                            (current-time-string)))
            (setq group-art (cdr group-art)))))
     t))
 
 (defun nnbabyl-active-number (group)
   ;; Find the next article number in GROUP.
-  (let ((active (car (cdr (assoc group nnbabyl-group-alist)))))
+  (let ((active (cadr (assoc group nnbabyl-group-alist))))
     (if active
        (setcdr active (1+ (cdr active)))
       ;; This group is new, so we create a new entry for it.