+(defun gnus-request-original-article (article group)
+ "Get an article and insert it into original article buffer."
+ (let (do-update-line)
+ (prog1
+ (save-excursion
+ (erase-buffer)
+ (gnus-kill-all-overlays)
+ (setq group (or group gnus-newsgroup-name))
+
+ ;; Open server if it has closed.
+ (gnus-check-server (gnus-find-method-for-group group))
+
+ ;; Using `gnus-request-article' directly will insert the article into
+ ;; `nntp-server-buffer' - so we'll save some time by not having to
+ ;; copy it from the server buffer into the article buffer.
+
+ ;; We only request an article by message-id when we do not have the
+ ;; headers for it, so we'll have to get those.
+ (when (stringp article)
+ (let ((gnus-override-method gnus-refer-article-method))
+ (gnus-read-header article)))
+
+ ;; If the article number is negative, that means that this article
+ ;; doesn't belong in this newsgroup (possibly), so we find its
+ ;; message-id and request it by id instead of number.
+ (when (and (numberp article)
+ gnus-summary-buffer
+ (get-buffer gnus-summary-buffer)
+ (gnus-buffer-exists-p gnus-summary-buffer))
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (let ((header (gnus-summary-article-header article)))
+ (when (< article 0)
+ (cond
+ ((memq article gnus-newsgroup-sparse)
+ ;; This is a sparse gap article.
+ (setq do-update-line article)
+ (setq article (mail-header-id header))
+ (let ((gnus-override-method gnus-refer-article-method))
+ (gnus-read-header article))
+ (setq gnus-newsgroup-sparse
+ (delq article gnus-newsgroup-sparse)))
+ ((vectorp header)
+ ;; It's a real article.
+ (setq article (mail-header-id header)))
+ (t
+ ;; It is an extracted pseudo-article.
+ (setq article 'pseudo)
+ (gnus-request-pseudo-article header))))
+
+ (let ((method (gnus-find-method-for-group
+ gnus-newsgroup-name)))
+ (when (and (eq (car method) 'nneething)
+ (vectorp header))
+ (let ((dir (concat (file-name-as-directory (nth 1 method))
+ (mail-header-subject header))))
+ (when (file-directory-p dir)
+ (setq article 'nneething)
+ (gnus-group-enter-directory dir))))))))
+
+ (cond
+ ;; Refuse to select canceled articles.
+ ((and (numberp article)
+ gnus-summary-buffer
+ (get-buffer gnus-summary-buffer)
+ (gnus-buffer-exists-p gnus-summary-buffer)
+ (eq (cdr (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (assq article gnus-newsgroup-reads)))
+ gnus-canceled-mark))
+ nil)
+ ;; Check the backlog.
+ ((and gnus-keep-backlog
+ (gnus-backlog-request-article group article (current-buffer)))
+ 'article)
+ ;; Check asynchronous pre-fetch.
+ ((gnus-async-request-fetched-article group article (current-buffer))
+ (gnus-async-prefetch-next group article gnus-summary-buffer)
+ (when (and (numberp article) gnus-keep-backlog)
+ (gnus-backlog-enter-article group article (current-buffer)))
+ 'article)
+ ;; Check the cache.
+ ((and gnus-use-cache
+ (numberp article)
+ (gnus-cache-request-article article group))
+ 'article)
+ ;; Get the article and put into the article buffer.
+ ((or (stringp article) (numberp article))
+ (let ((gnus-override-method
+ (and (stringp article) gnus-refer-article-method))
+ (buffer-read-only nil))
+ (erase-buffer)
+ (gnus-kill-all-overlays)
+ (when (gnus-request-article article group (current-buffer))
+ (when (numberp article)
+ (gnus-async-prefetch-next group article gnus-summary-buffer)
+ (when gnus-keep-backlog
+ (gnus-backlog-enter-article
+ group article (current-buffer))))
+ 'article)))
+ ;; It was a pseudo.
+ (t article)))
+
+ ;; Associate this article with the current summary buffer.
+ (setq gnus-article-current-summary gnus-summary-buffer)
+
+ ;; Update sparse articles.
+ (when (and do-update-line
+ (or (numberp article)
+ (stringp article)))
+ (let ((buf (current-buffer)))
+ (set-buffer gnus-summary-buffer)
+ (gnus-summary-update-article do-update-line)
+ (gnus-summary-goto-subject do-update-line nil t)
+ (set-window-point (get-buffer-window (current-buffer) t)
+ (point))
+ (set-buffer buf))))))
+