:group 'gnus-article-treat
:type gnus-article-treat-custom)
+(defcustom gnus-treat-leading-whitespace nil
+ "Remove leading whitespace in headers.
+Valid values are nil, t, `head', `last', an integer or a predicate.
+See the manual for details."
+ :group 'gnus-article-treat
+ :type gnus-article-treat-custom)
+
(defcustom gnus-treat-hide-headers 'head
"Hide headers.
Valid values are nil, t, `head', `last', an integer or a predicate.
(gnus-treat-hide-citation gnus-article-hide-citation)
(gnus-treat-hide-citation-maybe gnus-article-hide-citation-maybe)
(gnus-treat-strip-list-identifiers gnus-article-hide-list-identifiers)
+ (gnus-treat-leading-whitespace gnus-article-remove-leading-whitespace)
(gnus-treat-strip-pgp gnus-article-hide-pgp)
(gnus-treat-strip-pem gnus-article-hide-pem)
(gnus-treat-highlight-headers gnus-article-highlight-headers)
((eq elem 'to-address)
(let ((to (message-fetch-field "to"))
(to-address
- (gnus-group-find-parameter
+ (gnus-parameter-to-address
(if (boundp 'gnus-newsgroup-name)
- gnus-newsgroup-name "") 'to-address)))
+ gnus-newsgroup-name ""))))
(when (and to to-address
(ignore-errors
(gnus-string-equal
(article-narrow-to-head)
(funcall gnus-decode-header-function (point-min) (point-max)))))
-(defun article-de-quoted-unreadable (&optional force)
+(defun article-de-quoted-unreadable (&optional force read-charset)
"Translate a quoted-printable-encoded article.
If FORCE, decode the article whether it is marked as quoted-printable
-or not."
- (interactive (list 'force))
+or not.
+If READ-CHARSET, ask for a coding system."
+ (interactive (list 'force current-prefix-arg))
(save-excursion
(let ((buffer-read-only nil) type charset)
(if (gnus-buffer-live-p gnus-original-article-buffer)
(mail-content-type-get ctl 'charset)))
(if (stringp charset)
(setq charset (intern (downcase charset)))))))
+ (if read-charset
+ (setq charset (read-coding-system "Charset: " charset)))
(unless charset
(setq charset gnus-newsgroup-charset))
(when (or force
(quoted-printable-decode-region
(point) (point-max) (mm-charset-to-coding-system charset))))))
-(defun article-de-base64-unreadable (&optional force)
+(defun article-de-base64-unreadable (&optional force read-charset)
"Translate a base64 article.
-If FORCE, decode the article whether it is marked as base64 not."
- (interactive (list 'force))
+If FORCE, decode the article whether it is marked as base64 not.
+If READ-CHARSET, ask for a coding system."
+ (interactive (list 'force current-prefix-arg))
(save-excursion
(let ((buffer-read-only nil) type charset)
(if (gnus-buffer-live-p gnus-original-article-buffer)
(mail-content-type-get ctl 'charset)))
(if (stringp charset)
(setq charset (intern (downcase charset)))))))
+ (if read-charset
+ (setq charset (read-coding-system "Charset: " charset)))
(unless charset
(setq charset gnus-newsgroup-charset))
(when (or force
(let ((buffer-read-only nil))
(rfc1843-decode-region (point-min) (point-max)))))
-(defun article-wash-html ()
- "Format an html article."
- (interactive)
+(defun article-wash-html (&optional read-charset)
+ "Format an html article.
+If READ-CHARSET, ask for a coding system."
+ (interactive "P")
(save-excursion
(let ((buffer-read-only nil)
charset)
(mail-content-type-get ctl 'charset)))
(if (stringp charset)
(setq charset (intern (downcase charset)))))))
+ (if read-charset
+ (setq charset (read-coding-system "Charset: " charset)))
(unless charset
(setq charset gnus-newsgroup-charset))
(article-goto-body)
(replace-match "" nil t)))
;; Then replace multiple empty lines with a single empty line.
(article-goto-body)
- (while (re-search-forward "\n\n\n+" nil t)
+ (while (re-search-forward "\n\n\\(\n+\\)" nil t)
(unless (gnus-annotation-in-region-p
(match-beginning 0) (match-end 0))
- (replace-match "\n\n" t t))))))
+ (delete-region (match-beginning 1) (match-end 1)))))))
(defun article-strip-leading-space ()
"Remove all white space from the beginning of the lines in the article."
(defun article-make-date-line (date type)
"Return a DATE line of TYPE."
- (let ((time (condition-case ()
- (date-to-time date)
- (error '(0 0)))))
- (cond
- ;; Convert to the local timezone. We have to slap a
- ;; `condition-case' round the calls to the timezone
- ;; functions since they aren't particularly resistant to
- ;; buggy dates.
- ((eq type 'local)
- (let ((tz (car (current-time-zone time))))
- (format "Date: %s %s%02d%02d" (current-time-string time)
- (if (> tz 0) "+" "-") (/ (abs tz) 3600)
- (/ (% (abs tz) 3600) 60))))
- ;; Convert to Universal Time.
- ((eq type 'ut)
- (concat "Date: "
- (current-time-string
- (let* ((e (parse-time-string date))
- (tm (apply 'encode-time e))
- (ms (car tm))
- (ls (- (cadr tm) (car (current-time-zone time)))))
- (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
- ((> ls 65535) (list (1+ ms) (- ls 65536)))
- (t (list ms ls)))))
- " UT"))
- ;; Get the original date from the article.
- ((eq type 'original)
- (concat "Date: " (if (string-match "\n+$" date)
- (substring date 0 (match-beginning 0))
- date)))
- ;; Let the user define the format.
- ((eq type 'user)
- (if (gnus-functionp gnus-article-time-format)
- (funcall gnus-article-time-format time)
- (concat
- "Date: "
- (format-time-string gnus-article-time-format time))))
- ;; ISO 8601.
- ((eq type 'iso8601)
- (let ((tz (car (current-time-zone time))))
- (concat
- "Date: "
- (format-time-string "%Y%m%dT%H%M%S" time)
- (format "%s%02d%02d"
- (if (> tz 0) "+" "-") (/ (abs tz) 3600)
- (/ (% (abs tz) 3600) 60)))))
- ;; Do an X-Sent lapsed format.
- ((eq type 'lapsed)
- ;; If the date is seriously mangled, the timezone functions are
- ;; liable to bug out, so we ignore all errors.
- (let* ((now (current-time))
- (real-time (subtract-time now time))
- (real-sec (and real-time
- (+ (* (float (car real-time)) 65536)
- (cadr real-time))))
- (sec (and real-time (abs real-sec)))
- num prev)
+ (unless (memq type '(local ut original user iso8601 lapsed english))
+ (error "Unknown conversion type: %s" type))
+ (condition-case ()
+ (let ((time (date-to-time date)))
(cond
- ((null real-time)
- "X-Sent: Unknown")
- ((zerop sec)
- "X-Sent: Now")
- (t
- (concat
- "X-Sent: "
- ;; This is a bit convoluted, but basically we go
- ;; through the time units for years, weeks, etc,
- ;; and divide things to see whether that results
- ;; in positive answers.
- (mapconcat
- (lambda (unit)
- (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
- ;; The (remaining) seconds are too few to
- ;; be divided into this time unit.
- ""
- ;; It's big enough, so we output it.
- (setq sec (- sec (* num (cdr unit))))
- (prog1
- (concat (if prev ", " "") (int-to-string
- (floor num))
- " " (symbol-name (car unit))
- (if (> num 1) "s" ""))
- (setq prev t))))
- article-time-units "")
- ;; If dates are odd, then it might appear like the
- ;; article was sent in the future.
- (if (> real-sec 0)
- " ago"
- " in the future"))))))
- ;; Display the date in proper English
- ((eq type 'english)
- (let ((dtime (decode-time time)))
- (concat
- "Date: the "
- (number-to-string (nth 3 dtime))
- (let ((digit (% (nth 3 dtime) 10)))
- (cond
- ((memq (nth 3 dtime) '(11 12 13)) "th")
- ((= digit 1) "st")
- ((= digit 2) "nd")
- ((= digit 3) "rd")
- (t "th")))
- " of "
- (nth (1- (nth 4 dtime)) gnus-english-month-names)
- " "
- (number-to-string (nth 5 dtime))
- " at "
- (format "%02d" (nth 2 dtime))
- ":"
- (format "%02d" (nth 1 dtime)))))
- (t
- (error "Unknown conversion type: %s" type)))))
+ ;; Convert to the local timezone.
+ ((eq type 'local)
+ (let ((tz (car (current-time-zone time))))
+ (format "Date: %s %s%02d%02d" (current-time-string time)
+ (if (> tz 0) "+" "-") (/ (abs tz) 3600)
+ (/ (% (abs tz) 3600) 60))))
+ ;; Convert to Universal Time.
+ ((eq type 'ut)
+ (concat "Date: "
+ (current-time-string
+ (let* ((e (parse-time-string date))
+ (tm (apply 'encode-time e))
+ (ms (car tm))
+ (ls (- (cadr tm) (car (current-time-zone time)))))
+ (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
+ ((> ls 65535) (list (1+ ms) (- ls 65536)))
+ (t (list ms ls)))))
+ " UT"))
+ ;; Get the original date from the article.
+ ((eq type 'original)
+ (concat "Date: " (if (string-match "\n+$" date)
+ (substring date 0 (match-beginning 0))
+ date)))
+ ;; Let the user define the format.
+ ((eq type 'user)
+ (if (gnus-functionp gnus-article-time-format)
+ (funcall gnus-article-time-format time)
+ (concat
+ "Date: "
+ (format-time-string gnus-article-time-format time))))
+ ;; ISO 8601.
+ ((eq type 'iso8601)
+ (let ((tz (car (current-time-zone time))))
+ (concat
+ "Date: "
+ (format-time-string "%Y%m%dT%H%M%S" time)
+ (format "%s%02d%02d"
+ (if (> tz 0) "+" "-") (/ (abs tz) 3600)
+ (/ (% (abs tz) 3600) 60)))))
+ ;; Do an X-Sent lapsed format.
+ ((eq type 'lapsed)
+ ;; If the date is seriously mangled, the timezone functions are
+ ;; liable to bug out, so we ignore all errors.
+ (let* ((now (current-time))
+ (real-time (subtract-time now time))
+ (real-sec (and real-time
+ (+ (* (float (car real-time)) 65536)
+ (cadr real-time))))
+ (sec (and real-time (abs real-sec)))
+ num prev)
+ (cond
+ ((null real-time)
+ "X-Sent: Unknown")
+ ((zerop sec)
+ "X-Sent: Now")
+ (t
+ (concat
+ "X-Sent: "
+ ;; This is a bit convoluted, but basically we go
+ ;; through the time units for years, weeks, etc,
+ ;; and divide things to see whether that results
+ ;; in positive answers.
+ (mapconcat
+ (lambda (unit)
+ (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
+ ;; The (remaining) seconds are too few to
+ ;; be divided into this time unit.
+ ""
+ ;; It's big enough, so we output it.
+ (setq sec (- sec (* num (cdr unit))))
+ (prog1
+ (concat (if prev ", " "") (int-to-string
+ (floor num))
+ " " (symbol-name (car unit))
+ (if (> num 1) "s" ""))
+ (setq prev t))))
+ article-time-units "")
+ ;; If dates are odd, then it might appear like the
+ ;; article was sent in the future.
+ (if (> real-sec 0)
+ " ago"
+ " in the future"))))))
+ ;; Display the date in proper English
+ ((eq type 'english)
+ (let ((dtime (decode-time time)))
+ (concat
+ "Date: the "
+ (number-to-string (nth 3 dtime))
+ (let ((digit (% (nth 3 dtime) 10)))
+ (cond
+ ((memq (nth 3 dtime) '(11 12 13)) "th")
+ ((= digit 1) "st")
+ ((= digit 2) "nd")
+ ((= digit 3) "rd")
+ (t "th")))
+ " of "
+ (nth (1- (nth 4 dtime)) gnus-english-month-names)
+ " "
+ (number-to-string (nth 5 dtime))
+ " at "
+ (format "%02d" (nth 2 dtime))
+ ":"
+ (format "%02d" (nth 1 dtime)))))))
+ (error
+ (format "Date: %s (from Oort)" date))))
(defun article-date-local (&optional highlight)
"Convert the current article date to the local timezone."
(let ((buffer-read-only nil))
(gnus-article-unhide-text (point-min) (point-max)))))
+(defun article-remove-leading-whitespace ()
+ "Remove excessive whitespace from all headers."
+ (interactive)
+ (save-excursion
+ (save-restriction
+ (let ((buffer-read-only nil))
+ (article-narrow-to-head)
+ (goto-char (point-min))
+ (while (re-search-forward "^[^ :]+: \\([ \t]+\\)" nil t)
+ (delete-region (match-beginning 1) (match-end 1)))))))
+
(defun article-emphasize (&optional arg)
"Emphasize text according to `gnus-emphasis-alist'."
(interactive (gnus-article-hidden-arg))
(expand-file-name
(if (gnus-use-long-file-name 'not-save)
newsgroup
- (expand-file-name "news" (gnus-newsgroup-directory-form newsgroup)))
+ (file-relative-name
+ (expand-file-name "news" (gnus-newsgroup-directory-form newsgroup))
+ default-directory))
gnus-article-save-directory)))
+(defun gnus-sender-save-name (newsgroup headers &optional last-file)
+ "Generate file name from sender."
+ (let ((from (mail-header-from headers)))
+ (expand-file-name
+ (if (and from (string-match "\\([^ <]+\\)@" from))
+ (match-string 1 from)
+ "nobody")
+ gnus-article-save-directory)))
+
(defun article-verify-x-pgp-sig ()
"Verify X-PGP-Sig."
(interactive)
article-fill-long-lines
article-capitalize-sentences
article-remove-cr
+ article-remove-leading-whitespace
article-display-x-face
article-de-quoted-unreadable
article-de-base64-unreadable
article-strip-trailing-space
article-strip-blank-lines
article-strip-all-blank-lines
+ article-replace-with-quoted-text
article-date-local
article-date-english
article-date-iso8601
(substitute-key-definition
'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
-(eval-when-compile
- (defvar gnus-article-commands-menu))
-
-(defvar gnus-article-post-menu nil)
-
(defun gnus-article-make-menu-bar ()
+ (unless (boundp 'gnus-article-commands-menu)
+ (gnus-summary-make-menu-bar))
(gnus-turn-off-edit-menu 'article)
(unless (boundp 'gnus-article-article-menu)
(easy-menu-define
["Hide citation" gnus-article-hide-citation t]
["Treat overstrike" gnus-article-treat-overstrike t]
["Remove carriage return" gnus-article-remove-cr t]
+ ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
["Remove base64" gnus-article-de-base64-unreadable t]
["Treat html" gnus-article-wash-html t]
["Decode HZ" gnus-article-decode-HZ t]))
;; Note "Commands" menu is defined in gnus-sum.el for consistency
+
+ ;; Note "Post" menu is defined in gnus-sum.el for consistency
- (when (boundp 'gnus-summary-post-menu)
- (cond
- ((not (keymapp gnus-summary-post-menu))
- (setq gnus-article-post-menu gnus-summary-post-menu))
- ((not gnus-article-post-menu)
- ;; Don't share post menu.
- (setq gnus-article-post-menu
- (copy-keymap gnus-summary-post-menu))))
- (define-key gnus-article-mode-map [menu-bar post]
- (cons "Post" gnus-article-post-menu)))
-
- (gnus-run-hooks 'gnus-article-menu-hook))
- ;; Add the menu.
- (when (boundp 'gnus-article-commands-menu)
- (easy-menu-add gnus-article-commands-menu gnus-article-mode-map)))
+ (gnus-run-hooks 'gnus-article-menu-hook)))
;; Fixme: do something for the Emacs tool bar in Article mode a la
;; Summary.
(defun gnus-article-mime-part-status ()
(if gnus-article-mime-handle-alist-1
- (format " (%d parts)" (length gnus-article-mime-handle-alist-1))
+ (if (eq 1 (length gnus-article-mime-handle-alist-1))
+ " (1 part)"
+ (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
""))
(defvar gnus-mime-button-map
(interactive)
(gnus-article-check-buffer)
(let* ((data (get-text-property (point) 'gnus-data))
- (file (and data (mm-save-part data)))
- param)
+ file param)
+ (if (mm-multiple-handles gnus-article-mime-handles)
+ (error "This function is not implemented."))
+ (setq file (and data (mm-save-part data)))
(when file
(with-current-buffer (mm-handle-buffer data)
(erase-buffer)
(gnus-article-check-buffer)
(let ((data (get-text-property (point) 'gnus-data)))
(when data
- (push (setq data (copy-sequence data)) gnus-article-mime-handles)
+ (setq gnus-article-mime-handles
+ (mm-merge-handles
+ gnus-article-mime-handles (setq data (copy-sequence data))))
(mm-interactively-view-part data))))
(defun gnus-mime-view-part-as-type-internal ()
(mm-handle-description handle)
(mm-handle-cache handle)
(mm-handle-id handle)))
- (push handle gnus-article-mime-handles)
+ (setq gnus-article-mime-handles
+ (mm-merge-handles gnus-article-mime-handles handle))
(gnus-mm-display-part handle))))
(defun gnus-mime-copy-part (&optional handle)
(goto-char b)))))
(defun gnus-mime-view-part-as-charset (&optional handle arg)
- "Insert the MIME part under point into the current buffer."
+ "Insert the MIME part under point into the current buffer using the
+specified charset."
(interactive (list nil current-prefix-arg))
(gnus-article-check-buffer)
(let* ((handle (or handle (get-text-property (point) 'gnus-data)))
(defun gnus-mime-internalize-part (&optional handle)
"View the MIME part under point with an internal viewer.
-In no internal viewer is available, use an external viewer."
+If no internal viewer is available, use an external viewer."
(interactive)
(gnus-article-check-buffer)
(let* ((handle (or handle (get-text-property (point) 'gnus-data)))
(gnus-treat-article 'head))))))))
(defvar gnus-mime-display-multipart-as-mixed nil)
+(defvar gnus-mime-display-multipart-alternative-as-mixed nil)
+(defvar gnus-mime-display-multipart-related-as-mixed nil)
(defun gnus-mime-display-part (handle)
(cond
handle))
;; multipart/alternative
((and (equal (car handle) "multipart/alternative")
- (not gnus-mime-display-multipart-as-mixed))
+ (not (or gnus-mime-display-multipart-as-mixed
+ gnus-mime-display-multipart-alternative-as-mixed)))
(let ((id (1+ (length gnus-article-mime-handle-alist))))
(push (cons id handle) gnus-article-mime-handle-alist)
(gnus-mime-display-alternative (cdr handle) nil nil id)))
;; multipart/related
((and (equal (car handle) "multipart/related")
- (not gnus-mime-display-multipart-as-mixed))
+ (not (or gnus-mime-display-multipart-as-mixed
+ gnus-mime-display-multipart-related-as-mixed)))
;;;!!!We should find the start part, but we just default
;;;!!!to the first part.
;;(gnus-mime-display-part (cadr handle))
"inline")
(mm-attachment-override-p handle))))
(mm-automatic-display-p handle)
- (or (mm-inlined-p handle)
+ (or (and
+ (mm-inlinable-p handle)
+ (mm-inlined-p handle))
(mm-automatic-external-display-p type)))
(setq display t)
(when (equal (mm-handle-media-supertype handle) "text")
(save-excursion
(set-buffer gnus-article-current-summary)
(let (gnus-pick-mode)
- (push (elt key 0) unread-command-events)
- (setq key (if (featurep 'xemacs)
- (events-to-keys (read-key-sequence "Describe key: "))
- (read-key-sequence "Describe key: "))))
+ (if (featurep 'xemacs)
+ (progn
+ (push (elt key 0) unread-command-events)
+ (setq key (events-to-keys
+ (read-key-sequence "Describe key: "))))
+ (setq unread-command-events
+ (mapcar
+ (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
+ (string-to-list key)))
+ (setq key (read-key-sequence "Describe key: "))))
(describe-key key))
(describe-key key)))
(save-excursion
(set-buffer gnus-article-current-summary)
(let (gnus-pick-mode)
- (push (elt key 0) unread-command-events)
- (setq key (if (featurep 'xemacs)
- (events-to-keys (read-key-sequence "Describe key: "))
- (read-key-sequence "Describe key: "))))
+ (if (featurep 'xemacs)
+ (progn
+ (push (elt key 0) unread-command-events)
+ (setq key (events-to-keys
+ (read-key-sequence "Describe key: "))))
+ (setq unread-command-events
+ (mapcar
+ (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
+ (string-to-list key)))
+ (setq key (read-key-sequence "Describe key: "))))
(describe-key-briefly key insert))
(describe-key-briefly key insert)))
(set-buffer gnus-article-buffer)
(gnus-article-edit-mode)
(funcall start-func)
+ (set-buffer-modified-p nil)
(gnus-configure-windows 'edit-article)
(setq gnus-article-edit-done-function exit-func)
(setq gnus-prev-winconf winconf)
(let ((func gnus-article-edit-done-function)
(buf (current-buffer))
(start (window-start)))
- (gnus-article-edit-exit)
+ ;; We remove all text props from the article buffer.
+ (let ((content
+ (buffer-substring-no-properties (point-min) (point-max)))
+ (p (point)))
+ (erase-buffer)
+ (insert content)
+ (let ((winconf gnus-prev-winconf))
+ (gnus-article-mode)
+ (set-window-configuration winconf)
+ ;; Tippy-toe some to make sure that point remains where it was.
+ (save-current-buffer
+ (set-buffer buf)
+ (set-window-start (get-buffer-window (current-buffer)) start)
+ (goto-char p))))
(save-excursion
(set-buffer buf)
(let ((buffer-read-only nil))
(defun gnus-article-edit-exit ()
"Exit the article editing without updating."
(interactive)
- ;; We remove all text props from the article buffer.
- (let ((buf (buffer-substring-no-properties (point-min) (point-max)))
- (curbuf (current-buffer))
- (p (point))
- (window-start (window-start)))
- (erase-buffer)
- (insert buf)
- (let ((winconf gnus-prev-winconf))
- (gnus-article-mode)
- (set-window-configuration winconf)
- ;; Tippy-toe some to make sure that point remains where it was.
- (save-current-buffer
- (set-buffer curbuf)
- (set-window-start (get-buffer-window (current-buffer)) window-start)
- (goto-char p)))))
+ (when (or (not (buffer-modified-p))
+ (yes-or-no-p "Article modified; kill anyway? "))
+ (let ((curbuf (current-buffer))
+ (p (point))
+ (window-start (window-start)))
+ (erase-buffer)
+ (if (gnus-buffer-live-p gnus-original-article-buffer)
+ (insert-buffer gnus-original-article-buffer))
+ (let ((winconf gnus-prev-winconf))
+ (gnus-article-mode)
+ (set-window-configuration winconf)
+ ;; Tippy-toe some to make sure that point remains where it was.
+ (save-current-buffer
+ (set-buffer curbuf)
+ (set-window-start (get-buffer-window (current-buffer)) window-start)
+ (goto-char p))))))
(defun gnus-article-edit-full-stops ()
"Interactively repair spacing at end of sentences."
:type 'regexp)
(defcustom gnus-button-alist
- `(("<\\(url:[>\n\t ]*?\\)?news:[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
- 0 t gnus-button-message-id 2)
- ("\\bnews:\\([^>\n\t ]*@[^>)!;:,\n\t ]*\\)" 0 t gnus-button-message-id 1)
+ `(("<\\(url:[>\n\t ]*?\\)?\\(nntp\\|news\\):[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
+ 0 t gnus-button-handle-news 3)
+ ("\\b\\(nntp\\|news\\):\\([^>\n\t ]*@[^>)!;:,\n\t ]*\\)" 0 t
+ gnus-button-handle-news 2)
("\\(\\b<\\(url:[>\n\t ]*\\)?news:[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
1 t
gnus-button-fetch-group 4)
(gnus-message 1 "You must define `%S' to use this button"
(cons fun args)))))))
+(defun gnus-parse-news-url (url)
+ (let (scheme server group message-id articles)
+ (with-temp-buffer
+ (insert url)
+ (goto-char (point-min))
+ (when (looking-at "\\([A-Za-z]+\\):")
+ (setq scheme (match-string 1))
+ (goto-char (match-end 0)))
+ (when (looking-at "//\\([^/]+\\)/")
+ (setq server (match-string 1))
+ (goto-char (match-end 0)))
+
+ (cond
+ ((looking-at "\\(.*@.*\\)")
+ (setq message-id (match-string 1)))
+ ((looking-at "\\([^/]+\\)/\\([-0-9]+\\)")
+ (setq group (match-string 1)
+ articles (split-string (match-string 2) "-")))
+ ((looking-at "\\([^/]+\\)/?")
+ (setq group (match-string 1)))
+ (t
+ (error "Unknown news URL syntax"))))
+ (list scheme server group message-id articles)))
+
+(defun gnus-button-handle-news (url)
+ "Fetch a news URL."
+ (destructuring-bind (scheme server group message-id articles)
+ (gnus-parse-news-url url)
+ (cond
+ (message-id
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (if server
+ (let ((gnus-refer-article-method (list (list 'nntp server))))
+ (gnus-summary-refer-article message-id))
+ (gnus-summary-refer-article message-id))))
+ (group
+ (gnus-button-fetch-group url)))))
+
(defun gnus-button-message-id (message-id)
"Fetch MESSAGE-ID."
(save-excursion