Synch with Oort Gnus (Translating gnus-ja.texi is incompleted).
[elisp/gnus.git-] / lisp / gnus-art.el
index 666ba7f..79aaaae 100644 (file)
     "^X-Received:" "^Content-length:" "X-precedence:"
     "^X-Authenticated-User:" "^X-Comment" "^X-Report:" "^X-Abuse-Info:"
     "^X-HTTP-Proxy:" "^X-Mydeja-Info:" "^X-Copyright" "^X-No-Markup:"
-    "^X-Abuse-Info:")
+    "^X-Abuse-Info:" "^X-From_:" "^X-Accept-Language:" "^Errors-To:"
+    "^X-BeenThere:" "^X-Mailman-Version:" "^List-Help:" "^List-Post:"
+    "^List-Subscribe:" "^List-Id:" "^List-Unsubscribe:" "^List-Archive:"
+     "^X-Content-length:" "^X-Posting-Agent:" "^Original-Received:")
   "*All headers that start with this regexp will be hidden.
 This variable can also be a list of regexps of headers to be ignored.
 If `gnus-visible-headers' is non-nil, this variable will be ignored."
@@ -634,7 +637,8 @@ Obsolete; use the face `gnus-signature-face' for customizations instead."
       (background light))
      (:foreground "indianred4" :italic t))
     (t
-     (:italic t)))  "Face used for displaying header content."
+     (:italic t)))
+  "Face used for displaying header content."
   :group 'gnus-article-headers
   :group 'gnus-article-highlight)
 
@@ -1308,65 +1312,65 @@ Initialized from `text-mode-syntax-table.")
        (gnus-article-show-hidden-text 'boring-headers)
        (when (eq 1 (point-min))
          (set-window-start (get-buffer-window (current-buffer)) 1)))
-  (unless gnus-inhibit-hiding
-    (save-excursion
-      (save-restriction
-       (let ((inhibit-read-only t)
-             (case-fold-search t)
-             (max (1+ (length gnus-sorted-header-list)))
-             (ignored (when (not gnus-visible-headers)
-                        (cond ((stringp gnus-ignored-headers)
-                               gnus-ignored-headers)
-                              ((listp gnus-ignored-headers)
-                               (mapconcat 'identity gnus-ignored-headers
-                                          "\\|")))))
-             (visible
-              (cond ((stringp gnus-visible-headers)
-                     gnus-visible-headers)
-                    ((and gnus-visible-headers
-                          (listp gnus-visible-headers))
-                     (mapconcat 'identity gnus-visible-headers "\\|"))))
-             (inhibit-point-motion-hooks t)
-             beg)
-         ;; First we narrow to just the headers.
-         (article-narrow-to-head)
-         ;; Hide any "From " lines at the beginning of (mail) articles.
-         (while (looking-at "From ")
-           (forward-line 1))
-         (unless (bobp)
-           (if delete
-               (delete-region (point-min) (point))
-             (gnus-article-hide-text (point-min) (point)
-                                     (nconc (list 'article-type 'headers)
-                                            gnus-hidden-properties))))
-         ;; Then treat the rest of the header lines.
-         ;; Then we use the two regular expressions
-         ;; `gnus-ignored-headers' and `gnus-visible-headers' to
-         ;; select which header lines is to remain visible in the
-         ;; article buffer.
-         (while (re-search-forward "^[^ \t:]*:" nil t)
-           (beginning-of-line)
-           ;; Mark the rank of the header.
-           (put-text-property
-            (point) (1+ (point)) 'message-rank
-            (if (or (and visible (looking-at visible))
-                    (and ignored
-                         (not (looking-at ignored))))
-                (gnus-article-header-rank)
-              (+ 2 max)))
-           (forward-line 1))
-         (message-sort-headers-1)
-         (when (setq beg (text-property-any
-                          (point-min) (point-max) 'message-rank (+ 2 max)))
-           ;; We delete or make invisible the unwanted headers.
-           (push 'headers gnus-article-wash-types)
-           (if delete
-               (progn
-                 (add-text-properties
-                  (point-min) (+ 5 (point-min))
-                  '(article-type headers dummy-invisible t))
-                 (delete-region beg (point-max)))
-             (gnus-article-hide-text-type beg (point-max) 'headers))))))))
+    (unless gnus-inhibit-hiding
+      (save-excursion
+       (save-restriction
+         (let ((inhibit-read-only t)
+               (case-fold-search t)
+               (max (1+ (length gnus-sorted-header-list)))
+               (ignored (when (not gnus-visible-headers)
+                          (cond ((stringp gnus-ignored-headers)
+                                 gnus-ignored-headers)
+                                ((listp gnus-ignored-headers)
+                                 (mapconcat 'identity gnus-ignored-headers
+                                            "\\|")))))
+               (visible
+                (cond ((stringp gnus-visible-headers)
+                       gnus-visible-headers)
+                      ((and gnus-visible-headers
+                            (listp gnus-visible-headers))
+                       (mapconcat 'identity gnus-visible-headers "\\|"))))
+               (inhibit-point-motion-hooks t)
+               beg)
+           ;; First we narrow to just the headers.
+           (article-narrow-to-head)
+           ;; Hide any "From " lines at the beginning of (mail) articles.
+           (while (looking-at "From ")
+             (forward-line 1))
+           (unless (bobp)
+             (if delete
+                 (delete-region (point-min) (point))
+               (gnus-article-hide-text (point-min) (point)
+                                       (nconc (list 'article-type 'headers)
+                                              gnus-hidden-properties))))
+           ;; Then treat the rest of the header lines.
+           ;; Then we use the two regular expressions
+           ;; `gnus-ignored-headers' and `gnus-visible-headers' to
+           ;; select which header lines is to remain visible in the
+           ;; article buffer.
+           (while (re-search-forward "^[^ \t:]*:" nil t)
+             (beginning-of-line)
+             ;; Mark the rank of the header.
+             (put-text-property
+              (point) (1+ (point)) 'message-rank
+              (if (or (and visible (looking-at visible))
+                      (and ignored
+                           (not (looking-at ignored))))
+                  (gnus-article-header-rank)
+                (+ 2 max)))
+             (forward-line 1))
+           (message-sort-headers-1)
+           (when (setq beg (text-property-any
+                            (point-min) (point-max) 'message-rank (+ 2 max)))
+             ;; We delete or make invisible the unwanted headers.
+             (push 'headers gnus-article-wash-types)
+             (if delete
+                 (progn
+                   (add-text-properties
+                    (point-min) (+ 5 (point-min))
+                    '(article-type headers dummy-invisible t))
+                   (delete-region beg (point-max)))
+               (gnus-article-hide-text-type beg (point-max) 'headers))))))))
   )
 
 (defun article-hide-boring-headers (&optional arg)
@@ -1845,38 +1849,38 @@ If PROMPT (the prefix), prompt for a coding system to use."
                           (error))
                         gnus-newsgroup-ignored-charsets))
        ct cte ctl charset format)
-  (save-excursion
-    (save-restriction
-      (article-narrow-to-head)
-      (setq ct (message-fetch-field "Content-Type" t)
-           cte (message-fetch-field "Content-Transfer-Encoding" t)
-           ctl (and ct (ignore-errors
-                         (mail-header-parse-content-type ct)))
-           charset (cond
-                    (prompt
-                     (mm-read-coding-system "Charset to decode: "))
-                    (ctl
-                     (mail-content-type-get ctl 'charset)))
-           format (and ctl (mail-content-type-get ctl 'format)))
-      (when cte
-       (setq cte (mail-header-strip cte)))
-      (if (and ctl (not (string-match "/" (car ctl))))
-         (setq ctl nil))
-      (goto-char (point-max)))
-    (forward-line 1)
-    (save-restriction
-      (narrow-to-region (point) (point-max))
-      (when (and (eq mail-parse-charset 'gnus-decoded)
-                (eq (mm-body-7-or-8) '8bit))
-       ;; The text code could have been decoded.
-       (setq charset mail-parse-charset))
-      (when (and (or (not ctl)
-                    (equal (car ctl) "text/plain"))
-                (not format)) ;; article with format will decode later.
-       (mm-decode-body
-        charset (and cte (intern (downcase
-                                  (gnus-strip-whitespace cte))))
-        (car ctl)))))))
+    (save-excursion
+      (save-restriction
+       (article-narrow-to-head)
+       (setq ct (message-fetch-field "Content-Type" t)
+             cte (message-fetch-field "Content-Transfer-Encoding" t)
+             ctl (and ct (ignore-errors
+                           (mail-header-parse-content-type ct)))
+             charset (cond
+                      (prompt
+                       (mm-read-coding-system "Charset to decode: "))
+                      (ctl
+                       (mail-content-type-get ctl 'charset)))
+             format (and ctl (mail-content-type-get ctl 'format)))
+       (when cte
+         (setq cte (mail-header-strip cte)))
+       (if (and ctl (not (string-match "/" (car ctl))))
+           (setq ctl nil))
+       (goto-char (point-max)))
+      (forward-line 1)
+      (save-restriction
+       (narrow-to-region (point) (point-max))
+       (when (and (eq mail-parse-charset 'gnus-decoded)
+                  (eq (mm-body-7-or-8) '8bit))
+         ;; The text code could have been decoded.
+         (setq charset mail-parse-charset))
+       (when (and (or (not ctl)
+                      (equal (car ctl) "text/plain"))
+                  (not format)) ;; article with format will decode later.
+         (mm-decode-body
+          charset (and cte (intern (downcase
+                                    (gnus-strip-whitespace cte))))
+          (car ctl)))))))
 
 (defun article-decode-encoded-words ()
   "Remove encoded-word encoding from headers."
@@ -2382,8 +2386,8 @@ should replace the \"Date:\" one, or should be added below it."
                    (re-search-forward "^X-Sent:[ \t]" nil t))
            (setq bface (get-text-property (gnus-point-at-bol) 'face)
                  date (or (get-text-property (gnus-point-at-bol)
-                                               'original-date)
-                            date)
+                                             'original-date)
+                          date)
                  eface (get-text-property (1- (gnus-point-at-eol))
                                           'face)))
          (let ((buffer-read-only nil))
@@ -2539,8 +2543,8 @@ should replace the \"Date:\" one, or should be added below it."
             (format "%02d" (nth 2 dtime))
             ":"
             (format "%02d" (nth 1 dtime)))))))
-       (error
-        (format "Date: %s (from Oort)" date))))
+    (error
+     (format "Date: %s (from Oort)" date))))
 
 (defun article-date-local (&optional highlight)
   "Convert the current article date to the local timezone."
@@ -2797,7 +2801,7 @@ This format is defined by the `gnus-article-time-format' variable."
                         (car (push result file-name-history)))))))
               ;; Create the directory.
               (gnus-make-directory (file-name-directory file))
-      ;; If we have read a directory, we append the default file name.
+              ;; If we have read a directory, we append the default file name.
               (when (file-directory-p file)
                 (setq file (expand-file-name (file-name-nondirectory
                                               default-name)
@@ -3070,14 +3074,14 @@ If variable `gnus-use-long-file-name' is non-nil, it is
               gfunc (intern (format "gnus-%s" func))))
        (defalias gfunc
         (if (fboundp afunc)
-          `(lambda (&optional interactive &rest args)
-             ,(documentation afunc t)
-             (interactive (list t))
-             (save-excursion
-               (set-buffer gnus-article-buffer)
-               (if interactive
-                   (call-interactively ',afunc)
-                 (apply ',afunc args))))))))
+            `(lambda (&optional interactive &rest args)
+               ,(documentation afunc t)
+               (interactive (list t))
+               (save-excursion
+                 (set-buffer gnus-article-buffer)
+                 (if interactive
+                     (call-interactively ',afunc)
+                   (apply ',afunc args))))))))
    '(article-hide-headers
      article-verify-x-pgp-sig
      article-hide-boring-headers
@@ -3688,15 +3692,16 @@ value of the variable `gnus-show-mime' is non-nil."
        (goto-char (point-min))
        (or (search-forward "\n\n") (goto-char (point-max)))
        (let (buffer-read-only)
-         (delete-region (point) (point-max)))
-       (mm-display-parts handles)))))
+         (delete-region (point) (point-max))
+         (mm-display-parts handles))))))
 
 (defun gnus-mime-save-part-and-strip ()
   "Save the MIME part under point then replace it with an external body."
   (interactive)
   (gnus-article-check-buffer)
   (let* ((data (get-text-property (point) 'gnus-data))
-        file param)
+        file param
+        (handles gnus-article-mime-handles))
     (if (mm-multiple-handles gnus-article-mime-handles)
        (error "This function is not implemented"))
     (setq file (and data (mm-save-part data)))
@@ -3718,24 +3723,24 @@ value of the variable `gnus-show-mime' is non-nil."
       (set-buffer gnus-summary-buffer)
       (gnus-article-edit-article
        `(lambda ()
-          (erase-buffer)
-          (let ((mail-parse-charset (or gnus-article-charset
-                                        ',gnus-newsgroup-charset))
-                (mail-parse-ignored-charsets
-                 (or gnus-article-ignored-charsets
-                     ',gnus-newsgroup-ignored-charsets))
-                (mbl mml-buffer-list))
-            (setq mml-buffer-list nil)
-            (insert-buffer gnus-original-article-buffer)
-            (mime-to-mml gnus-article-mime-handles)
-            (setq gnus-article-mime-handles nil)
-            (let ((mbl1 mml-buffer-list))
-              (setq mml-buffer-list mbl)
-              (set (make-local-variable 'mml-buffer-list) mbl1))
-            ;; LOCAL argument of add-hook differs between GNU Emacs
-            ;; and XEmacs. make-local-hook makes sure they are local.
-            (make-local-hook 'kill-buffer-hook)
-            (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
+         (erase-buffer)
+         (let ((mail-parse-charset (or gnus-article-charset
+                                       ',gnus-newsgroup-charset))
+               (mail-parse-ignored-charsets
+                (or gnus-article-ignored-charsets
+                    ',gnus-newsgroup-ignored-charsets))
+               (mbl mml-buffer-list))
+           (setq mml-buffer-list nil)
+           (insert-buffer gnus-original-article-buffer)
+           (mime-to-mml ',handles)
+           (setq gnus-article-mime-handles nil)
+           (let ((mbl1 mml-buffer-list))
+             (setq mml-buffer-list mbl)
+             (set (make-local-variable 'mml-buffer-list) mbl1))
+           ;; LOCAL argument of add-hook differs between GNU Emacs
+           ;; and XEmacs. make-local-hook makes sure they are local.
+           (make-local-hook 'kill-buffer-hook)
+           (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
        `(lambda (no-highlight)
          (let ((mail-parse-charset (or gnus-article-charset
                                        ',gnus-newsgroup-charset))
@@ -3744,11 +3749,11 @@ value of the variable `gnus-show-mime' is non-nil."
                (mail-parse-ignored-charsets
                 (or gnus-article-ignored-charsets
                     ',gnus-newsgroup-ignored-charsets)))
-          (mml-to-mime)
-          (mml-destroy-buffers)
-          (remove-hook 'kill-buffer-hook
-                       'mml-destroy-buffers t)
-          (kill-local-variable 'mml-buffer-list))
+           (mml-to-mime)
+           (mml-destroy-buffers)
+           (remove-hook 'kill-buffer-hook
+                        'mml-destroy-buffers t)
+           (kill-local-variable 'mml-buffer-list))
          (gnus-summary-edit-article-done
           ,(or (mail-header-references gnus-current-headers) "")
           ,(gnus-group-read-only-p)
@@ -3808,7 +3813,7 @@ value of the variable `gnus-show-mime' is non-nil."
                            (mm-handle-undisplayer handle)
                            (mm-handle-disposition handle)
                            (mm-handle-description handle)
-                           (mm-handle-cache handle)
+                           nil
                            (mm-handle-id handle)))
       (setq gnus-article-mime-handles
            (mm-merge-handles gnus-article-mime-handles handle))
@@ -3889,7 +3894,7 @@ specified charset."
             (or (cdr (assq arg
                            gnus-summary-show-article-charset-alist))
                 (mm-read-coding-system "Charset: ")))
-         (gnus-newsgroup-ignored-charsets 'gnus-all))
+           (gnus-newsgroup-ignored-charsets 'gnus-all))
        (gnus-article-press-button)))))
 
 (defun gnus-mime-externalize-part (&optional handle)
@@ -4043,7 +4048,8 @@ If no internal viewer is available, use an external viewer."
                      ;; This will remove the part.
                      (mm-display-part handle)
                    (save-restriction
-                     (narrow-to-region (point) (1+ (point)))
+                     (narrow-to-region (point)
+                                       (if (eobp) (point) (1+ (point))))
                      (mm-display-part handle)
                      ;; We narrow to the part itself and
                      ;; then call the treatment functions.
@@ -4070,12 +4076,9 @@ If no internal viewer is available, use an external viewer."
 
 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
   (let ((gnus-tmp-name
-        (or (mail-content-type-get (mm-handle-type handle)
-                                   'name)
-            (mail-content-type-get (mm-handle-disposition handle)
-                                   'filename)
-            (mail-content-type-get (mm-handle-type handle)
-                                   'url)
+        (or (mail-content-type-get (mm-handle-type handle) 'name)
+            (mail-content-type-get (mm-handle-disposition handle) 'filename)
+            (mail-content-type-get (mm-handle-type handle) 'url)
             ""))
        (gnus-tmp-type (mm-handle-media-type handle))
        (gnus-tmp-description
@@ -4093,8 +4096,8 @@ If no internal viewer is available, use an external viewer."
     (setq gnus-tmp-type-long (concat gnus-tmp-type
                                     (and (not (equal gnus-tmp-name ""))
                                          (concat "; " gnus-tmp-name))))
-    (or (equal gnus-tmp-description "")
-       (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
+    (unless (equal gnus-tmp-description "")
+      (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
     (unless (bolp)
       (insert "\n"))
     (setq b (point))
@@ -4463,7 +4466,9 @@ Provided for backwards compatibility."
       ;; save it to file.
       (goto-char (point-max))
       (insert "\n")
-      (write-region-as-binary (point-min) (point-max) file-name 'append)
+      (let ((file-name-coding-system nnmail-pathname-coding-system)
+           (pathname-coding-system nnmail-pathname-coding-system))
+       (write-region-as-binary (point-min) (point-max) file-name 'append))
       t)))
 
 (defun gnus-narrow-to-page (&optional arg)
@@ -4770,8 +4775,10 @@ If given a prefix, show the hidden text instead."
     (gnus-request-group gnus-newsgroup-name t)))
 
 (defun gnus-request-article-this-buffer (article group)
-  "Get an article and insert it into this buffer."
+  "Get an article and insert it into this buffer.
+T-gnus change: Insert an article into `gnus-original-article-buffer'."
   (let (do-update-line sparse-header)
+    ;; The current buffer is `gnus-article-buffer'.
     (prog1
        (save-excursion
          (erase-buffer)
@@ -4826,7 +4833,9 @@ If given a prefix, show the hidden text instead."
                      (when (file-directory-p dir)
                        (setq article 'nneething)
                        (gnus-group-enter-directory dir))))))))
+         (setq gnus-original-article (cons group article))
 
+         (set-buffer gnus-original-article-buffer)
          (cond
           ;; Refuse to select canceled articles.
           ((and (numberp article)
@@ -4894,28 +4903,10 @@ If given a prefix, show the hidden text instead."
       ;; Associate this article with the current summary buffer.
       (setq gnus-article-current-summary gnus-summary-buffer)
 
-      ;; Take the article from the original article buffer
-      ;; and place it in the buffer it's supposed to be in.
-      (when (and (get-buffer gnus-article-buffer)
-                (equal (buffer-name (current-buffer))
-                       (buffer-name (get-buffer gnus-article-buffer))))
-       (save-excursion
-         (if (get-buffer gnus-original-article-buffer)
-             (set-buffer gnus-original-article-buffer)
-           (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
-           (set-buffer-multibyte nil)
-           (buffer-disable-undo)
-           (setq major-mode 'gnus-original-article-mode)
-           (setq buffer-read-only t))
-         (let (buffer-read-only)
-           (erase-buffer)
-           (insert-buffer-substring gnus-article-buffer))
-         (setq gnus-original-article (cons group article)))
-
-       ;; Decode charsets.
-       (run-hooks 'gnus-article-decode-hook)
-       ;; Mark article as decoded or not.
-       (setq gnus-article-decoded-p gnus-article-decode-hook))
+      ;; Decode charsets.
+      (run-hooks 'gnus-article-decode-hook)
+      ;; Mark article as decoded or not.
+      (setq gnus-article-decoded-p gnus-article-decode-hook)
 
       ;; Update sparse articles.
       (when (and do-update-line
@@ -5194,7 +5185,7 @@ after replacing with the original article."
 
 ;;; Internal Variables:
 
-(defcustom gnus-button-url-regexp "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\)\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)\\)"
+(defcustom gnus-button-url-regexp "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)\\)"
   "Regular expression that matches URLs."
   :group 'gnus-article-buttons
   :type 'regexp)
@@ -5213,6 +5204,9 @@ after replacing with the original article."
     ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>" 0 t gnus-url-mailto 2)
     ("mailto:\\([-a-zA-Z.@_+0-9%=?]+\\)" 0 t gnus-url-mailto 1)
     ("\\bmailto:\\([^ \n\t]+\\)" 0 t gnus-url-mailto 1)
+    ;; This is info
+    ("\\binfo:\\(//\\)?\\([^'\">\n\t ]+\\)" 0 t
+     gnus-button-handle-info 2)
     ;; This is how URLs _should_ be embedded in text...
     ("<URL: *\\([^<>]*\\)>" 0 t gnus-button-embedded-url 1)
     ;; Raw URLs.
@@ -5239,7 +5233,7 @@ variable it the real callback function."
                               (integer :tag "Regexp group")))))
 
 (defcustom gnus-header-button-alist
-  `(("^\\(References\\|Message-I[Dd]\\):" "<[^>]+>"
+  `(("^\\(References\\|Message-I[Dd]\\):" "<[^<>]+>"
      0 t gnus-button-message-id 0)
     ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$" 1 t gnus-button-reply 1)
     ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
@@ -5628,6 +5622,18 @@ specified by `gnus-button-alist'."
      (group
       (gnus-button-fetch-group url)))))
 
+(defun gnus-button-handle-info (url)
+  "Fetch an info URL."
+  (if (string-match 
+       "^\\([^:/]+\\)?/\\(.*\\)"
+       url)
+      (gnus-info-find-node
+       (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
+                      "Gnus") 
+              ")" 
+              (gnus-url-unhex-string (match-string 2 url))))
+    (error "Can't parse %s" url)))
+
 (defun gnus-button-message-id (message-id)
   "Fetch MESSAGE-ID."
   (save-excursion
@@ -5639,8 +5645,10 @@ specified by `gnus-button-alist'."
   (if (not (string-match "[:/]" address))
       ;; This is just a simple group url.
       (gnus-group-read-ephemeral-group address gnus-select-method)
-    (if (not (string-match "^\\([^:/]+\\)\\(:\\([^/]+\\)/\\)?\\(.*\\)$"
-                          address))
+    (if (not
+        (string-match
+         "^\\([^:/]+\\)\\(:\\([^/]+\\)\\)?/\\([^/]+\\)\\(/\\([0-9]+\\)\\)?"
+         address))
        (error "Can't parse %s" address)
       (gnus-group-read-ephemeral-group
        (match-string 4 address)
@@ -5648,7 +5656,9 @@ specified by `gnus-button-alist'."
              (nntp-address ,(match-string 1 address))
              (nntp-port-number ,(if (match-end 3)
                                     (match-string 3 address)
-                                  "nntp")))))))
+                                  "nntp")))
+       nil nil nil
+       (and (match-end 6) (list (string-to-int (match-string 6 address))))))))
 
 (defun gnus-url-parse-query-string (query &optional downcase)
   (let (retval pairs cur key val)
@@ -5657,7 +5667,7 @@ specified by `gnus-button-alist'."
       (setq cur (car pairs)
            pairs (cdr pairs))
       (if (not (string-match "=" cur))
-         nil                           ; Grace
+         nil                           ; Grace
        (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
              val (gnus-url-unhex-string (substring cur (match-end 0) nil)))
        (if downcase
@@ -5680,7 +5690,7 @@ specified by `gnus-button-alist'."
 If optional second argument ALLOW-NEWLINES is non-nil, then allow the
 decoding of carriage returns and line feeds in the string, which is normally
 forbidden in URL encoding."
-  (setq str (or str ""))
+  (setq str (or (nnheader-replace-chars-in-string str ?+ ? ) ""))
   (let ((tmp "")
        (case-fold-search t))
     (while (string-match "%[0-9a-f][0-9a-f]" str)
@@ -5854,7 +5864,7 @@ For example:
                         (string-match (car x) gnus-newsgroup-name))
                    (nconc gnus-decode-header-methods-cache
                           (list (cdr x))))))
-         gnus-decode-header-methods))
+           gnus-decode-header-methods))
   (let ((xlist gnus-decode-header-methods-cache))
     (pop xlist)
     (save-restriction
@@ -5983,7 +5993,7 @@ For example:
            (error "The current newsgroup does not support article encrypt"))
          (gnus-summary-show-article t)
          (setq references
-             (or (mail-header-references gnus-current-headers) ""))
+               (or (mail-header-references gnus-current-headers) ""))
          (set-buffer gnus-article-buffer)
          (let* ((buffer-read-only nil)
                 (headers
@@ -6065,21 +6075,25 @@ For example:
 (defun gnus-mime-security-verify-or-decrypt (handle)
   (mm-remove-parts (cdr handle))
   (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
-       buffer-read-only)
+       point buffer-read-only)
+    (if region
+       (goto-char (car region)))
+    (save-restriction
+      (narrow-to-region (point) (point))
+      (with-current-buffer (mm-handle-multipart-original-buffer handle)
+       (let* ((mm-verify-option 'known)
+              (mm-decrypt-option 'known)
+              (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
+         (unless (eq nparts (cdr handle))
+           (mm-destroy-parts (cdr handle))
+           (setcdr handle nparts))))
+      (setq point (point))
+      (gnus-mime-display-security handle)
+      (goto-char (point-max)))
     (when region
-      (delete-region (car region) (cdr region))
+      (delete-region (point) (cdr region))
       (set-marker (car region) nil)
-      (set-marker (cdr region) nil)))
-  (with-current-buffer (mm-handle-multipart-original-buffer handle)
-    (let* ((mm-verify-option 'known)
-          (mm-decrypt-option 'known)
-          (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
-      (unless (eq nparts (cdr handle))
-       (mm-destroy-parts (cdr handle))
-       (setcdr handle nparts))))
-  (let ((point (point))
-       buffer-read-only)
-    (gnus-mime-display-security handle)
+      (set-marker (cdr region) nil))
     (goto-char point)))
 
 (defun gnus-mime-security-show-details (handle)
@@ -6089,19 +6103,21 @@ For example:
            (let ((gnus-mime-security-button-pressed t)
                  (gnus-mime-security-button-line-format
                   (get-text-property (point) 'gnus-line-format))
-               buffer-read-only)
+                 buffer-read-only)
              (forward-char -1)
              (while (eq (get-text-property (point) 'gnus-line-format)
                         gnus-mime-security-button-line-format)
                (forward-char -1))
              (forward-char)
+             (save-restriction
+               (narrow-to-region (point) (point))
+               (gnus-insert-mime-security-button handle))
              (delete-region (point)
                             (or (text-property-not-all
                                  (point) (point-max)
-                               'gnus-line-format
-                               gnus-mime-security-button-line-format)
-                                (point-max)))
-             (gnus-insert-mime-security-button handle))
+                                 'gnus-line-format
+                                 gnus-mime-security-button-line-format)
+                                (point-max))))
          (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
              (with-current-buffer gnus-mime-security-details-buffer
                (erase-buffer)
@@ -6174,13 +6190,15 @@ For example:
 (defun gnus-mime-display-security (handle)
   (save-restriction
     (narrow-to-region (point) (point))
-    (gnus-insert-mime-security-button handle)
+    (unless (gnus-unbuttonized-mime-type-p (car handle))
+      (gnus-insert-mime-security-button handle))
     (gnus-mime-display-mixed (cdr handle))
     (unless (bolp)
       (insert "\n"))
-    (let ((gnus-mime-security-button-line-format
-          gnus-mime-security-button-end-line-format))
-      (gnus-insert-mime-security-button handle))
+    (unless (gnus-unbuttonized-mime-type-p (car handle))
+      (let ((gnus-mime-security-button-line-format
+            gnus-mime-security-button-end-line-format))
+       (gnus-insert-mime-security-button handle)))
     (mm-set-handle-multipart-parameter
      handle 'gnus-region
      (cons (set-marker (make-marker) (point-min))