+(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)))))
+