- (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)
+ (let ((inhibit-read-only t)
+ (case-fold-search t)
+ (max (1+ (length gnus-sorted-header-list)))
+ (inhibit-point-motion-hooks t)
+ (cur (current-buffer))
+ ignored visible beg)
+ (save-excursion
+ ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
+ ;; group parameters, so we should go to the summary buffer.
+ (when (prog1
+ (condition-case nil
+ (progn (set-buffer gnus-summary-buffer) t)
+ (error nil))
+ (setq 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
+ "\\|")))))
+ (set-buffer cur))
+ (save-restriction