* Makefile.in (install-package-ja): Compile and install lisp files first.

[elisp/gnus.git-] / lisp / gnus-int.el

diff --git a/lisp/gnus-int.el b/lisp/gnus-int.el
index 5cf432a..c7b8c8b 100644 (file)
--- a/lisp/gnus-int.el
+++ b/lisp/gnus-int.el
@@ -1,7 +1,9 @@
 ;;; gnus-int.el --- backend interface functions for Gnus
-;; Copyright (C) 1996,97,98 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000
+;;        Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
+;;         MORIOKA Tomohiko <morioka@jaist.ac.jp>
 ;; Keywords: news
 
 ;; This file is part of GNU Emacs.
@@ -219,10 +221,12 @@ If it is down, start it up (again)."
 
 (defun gnus-server-opened (gnus-command-method)
   "Check whether a connection to GNUS-COMMAND-METHOD has been opened."
-  (when (stringp gnus-command-method)
-    (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
-  (funcall (inline (gnus-get-function gnus-command-method 'server-opened))
-          (nth 1 gnus-command-method)))
+  (unless (eq (gnus-server-status gnus-command-method)
+             'denied)
+    (when (stringp gnus-command-method)
+      (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
+    (funcall (inline (gnus-get-function gnus-command-method 'server-opened))
+            (nth 1 gnus-command-method))))
 
 (defun gnus-status-message (gnus-command-method)
   "Return the status message from GNUS-COMMAND-METHOD.
@@ -269,6 +273,14 @@ this group uses will be queried."
       (funcall (gnus-get-function gnus-command-method func)
               (gnus-group-real-name group) (nth 1 gnus-command-method)))))
 
+(defun gnus-request-group-articles (group)
+  "Request a list of existing articles in GROUP."
+  (let ((gnus-command-method (gnus-find-method-for-group group))
+       (func 'request-group-articles))
+    (when (gnus-check-backend-function func group)
+      (funcall (gnus-get-function gnus-command-method func)
+              (gnus-group-real-name group) (nth 1 gnus-command-method)))))
+
 (defun gnus-close-group (group)
   "Request the GROUP be closed."
   (let ((gnus-command-method (inline (gnus-find-method-for-group group))))
@@ -285,6 +297,43 @@ If FETCH-OLD, retrieve all headers (or some subset thereof) in the group."
               articles (gnus-group-real-name group)
               (nth 1 gnus-command-method) fetch-old))))
 
+(defun gnus-retrieve-parsed-headers (articles group &optional fetch-old
+                                             dependencies force-new)
+  "Request parsed-headers for ARTICLES in GROUP.
+If FETCH-OLD, retrieve all headers (or some subset thereof) in the group."
+  (unless dependencies
+    (setq dependencies
+         (save-excursion
+           (set-buffer gnus-summary-buffer)
+           gnus-newsgroup-dependencies)))
+  (let ((gnus-command-method (gnus-find-method-for-group group))
+       headers)
+    (if (and gnus-use-cache (numberp (car articles)))
+       (setq headers
+             (gnus-cache-retrieve-parsed-headers articles group fetch-old
+                                                 dependencies force-new))
+      (let ((func (gnus-get-function gnus-command-method
+                                    'retrieve-parsed-headers 'no-error)))
+       (if func
+           (setq headers (funcall func articles dependencies
+                                  (gnus-group-real-name group)
+                                  (nth 1 gnus-command-method) fetch-old
+                                  force-new)
+                 gnus-headers-retrieved-by (car headers)
+                 headers (cdr headers))
+         (setq gnus-headers-retrieved-by
+               (funcall
+                (gnus-get-function gnus-command-method 'retrieve-headers)
+                articles (gnus-group-real-name group)
+                (nth 1 gnus-command-method) fetch-old))
+         )))
+    (or headers
+       (if (eq gnus-headers-retrieved-by 'nov)
+           (gnus-get-newsgroup-headers-xover
+            articles nil dependencies gnus-newsgroup-name t)
+         (gnus-get-newsgroup-headers dependencies)))
+    ))
+
 (defun gnus-retrieve-articles (articles group)
   "Request ARTICLES in GROUP."
   (let ((gnus-command-method (gnus-find-method-for-group group)))
@@ -308,6 +357,16 @@ If FETCH-OLD, retrieve all headers (or some subset thereof) in the group."
       (funcall (gnus-get-function gnus-command-method 'request-type)
               (gnus-group-real-name group) article))))
 
+(defun gnus-request-set-mark (group action)
+  "Set marks on articles in the backend."
+  (let ((gnus-command-method (gnus-find-method-for-group group)))
+    (if (not (gnus-check-backend-function
+             'request-set-mark (car gnus-command-method)))
+       action
+      (funcall (gnus-get-function gnus-command-method 'request-set-mark)
+              (gnus-group-real-name group) action
+              (nth 1 gnus-command-method)))))
+
 (defun gnus-request-update-mark (group article mark)
   "Allow the backend to change the mark the user tries to put on an article."
   (let ((gnus-command-method (gnus-find-method-for-group group)))
@@ -393,13 +452,14 @@ If BUFFER, insert the article in that group."
 (defun gnus-request-scan (group gnus-command-method)
   "Request a SCAN being performed in GROUP from GNUS-COMMAND-METHOD.
 If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned."
-  (when gnus-plugged
-    (let ((gnus-command-method
-          (if group (gnus-find-method-for-group group) gnus-command-method))
-         (gnus-inhibit-demon t))
-      (funcall (gnus-get-function gnus-command-method 'request-scan)
-              (and group (gnus-group-real-name group))
-              (nth 1 gnus-command-method)))))
+  (let ((gnus-command-method
+        (if group (gnus-find-method-for-group group) gnus-command-method))
+       (gnus-inhibit-demon t)
+       (mail-source-plugged gnus-plugged))
+    (if (or gnus-plugged (not (gnus-agent-method-p gnus-command-method)))
+       (funcall (gnus-get-function gnus-command-method 'request-scan)
+                (and group (gnus-group-real-name group))
+                (nth 1 gnus-command-method)))))
 
 (defsubst gnus-request-update-info (info gnus-command-method)
   "Request that GNUS-COMMAND-METHOD update INFO."
@@ -442,7 +502,7 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned."
             (cadr gnus-command-method)
             last)))
 
-(defun gnus-request-replace-article (article group buffer)
+(defun gnus-request-replace-article (article group buffer &optional no-encode)
   (let ((func (car (gnus-group-name-to-method group))))
     (funcall (intern (format "%s-request-replace-article" func))
             article (gnus-group-real-name group) buffer)))