(Advanced Scoring Examples): New exmples to teach how to drop off non-answered
[gnus] / lisp / mm-util.el
index 3d7bc25..960f3dd 100644 (file)
@@ -1,6 +1,7 @@
 ;;; mm-util.el --- Utility functions for Mule and low level things
-;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
-;;   Free Software Foundation, Inc.
+
+;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+;;   2005 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;;     MORIOKA Tomohiko <morioka@jaist.ac.jp>
@@ -18,8 +19,8 @@
 
 ;; 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.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
@@ -747,6 +748,17 @@ charset, and a longer list means no appropriate charset."
     (if (and (memq 'iso-2022-jp-2 charsets)
             (memq 'iso-2022-jp-2 hack-charsets))
        (setq charsets (delq 'iso-2022-jp charsets)))
+    ;; Attempt to reduce the number of charsets if utf-8 is available.
+    (if (and (featurep 'xemacs)
+            (> (length charsets) 1)
+            (mm-coding-system-p 'utf-8))
+       (let ((mm-coding-system-priorities
+              (cons 'utf-8 mm-coding-system-priorities)))
+         (setq charsets
+               (mm-delete-duplicates
+                (mapcar 'mm-mime-charset
+                        (delq 'ascii
+                              (mm-find-charset-region b e)))))))
     charsets))
 
 (defmacro mm-with-unibyte-buffer (&rest forms)
@@ -855,22 +867,28 @@ to advanced Emacs features, such as file-name-handlers, format decoding,
 `find-file-hooks', etc.
 If INHIBIT is non-nil, inhibit `mm-inhibit-file-name-handlers'.
   This function ensures that none of these modifications will take place."
-  (let ((format-alist nil)
-       (auto-mode-alist (if inhibit nil (mm-auto-mode-alist)))
-       (default-major-mode 'fundamental-mode)
-       (enable-local-variables nil)
-       (after-insert-file-functions nil)
-       (enable-local-eval nil)
-       (find-file-hooks nil)
-       (inhibit-file-name-operation (if inhibit
-                                        'insert-file-contents
-                                      inhibit-file-name-operation))
-       (inhibit-file-name-handlers
-        (if inhibit
-            (append mm-inhibit-file-name-handlers
-                    inhibit-file-name-handlers)
-          inhibit-file-name-handlers)))
-    (insert-file-contents filename visit beg end replace)))
+  (let* ((format-alist nil)
+        (auto-mode-alist (if inhibit nil (mm-auto-mode-alist)))
+        (default-major-mode 'fundamental-mode)
+        (enable-local-variables nil)
+        (after-insert-file-functions nil)
+        (enable-local-eval nil)
+        (inhibit-file-name-operation (if inhibit
+                                         'insert-file-contents
+                                       inhibit-file-name-operation))
+        (inhibit-file-name-handlers
+         (if inhibit
+             (append mm-inhibit-file-name-handlers
+                     inhibit-file-name-handlers)
+           inhibit-file-name-handlers))
+        (ffh (if (boundp 'find-file-hook)
+                 'find-file-hook
+               'find-file-hooks))
+        (val (symbol-value ffh)))
+    (set ffh nil)
+    (unwind-protect
+       (insert-file-contents filename visit beg end replace)
+      (set ffh val))))
 
 (defun mm-append-to-file (start end filename &optional codesys inhibit)
   "Append the contents of the region to the end of file FILENAME.
@@ -1056,7 +1074,12 @@ gzip, bzip2, etc. are allowed."
   (unless filename
     (setq filename buffer-file-name))
   (save-excursion
-    (let ((decomp (mm-decompress-buffer filename nil t)))
+    (let ((decomp (unless ;; No worth to examine charset of tar files.
+                     (and filename
+                          (string-match
+                           "\\.\\(?:tar\\.[^.]+\\|tbz\\|tgz\\)\\'"
+                           filename))
+                   (mm-decompress-buffer filename nil t))))
       (when decomp
        (set-buffer (let (default-enable-multibyte-characters)
                      (generate-new-buffer " *temp*")))