+ ;; Memorize the positions of the same characters as dummy marks.
+ (while (re-search-forward "[A-D]" nil t)
+ (push (point) ignores))
+ (erase-buffer)
+ ;; We use A-D as dummy marks in order to know column positions
+ ;; where marks should be inserted.
+ (setq gnus-tmp-unread ?A
+ gnus-replied-mark ?B
+ gnus-score-below-mark ?C
+ gnus-score-over-mark ?C
+ gnus-undownloaded-mark ?D)
+ (gnus-summary-insert-line header
+ 0 nil t gnus-tmp-unread t nil "" nil 1)
+ ;; Ignore characters which aren't dummy marks.
+ (dolist (p ignores)
+ (delete-region (goto-char (1- p)) p)
+ (insert ?Z))