silly Lisp errors.) You might also be interested in reading about topic
parameters (@pxref{Topic Parameters}).
+Group parameters can be set in @code{gnus-parameters} too. But some
+variables, such as @code{visible}, have no effect. For example,
+
+@example
+(setq gnus-parameters
+ '(("mail\\..*" (gnus-show-threads nil)
+ (gnus-use-scoring nil)
+ (gnus-summary-line-format
+ "%U%R%z%I%(%[%d:%ub%-20,20f%]%) %s\n")
+ (gcc-self . t)
+ (display . all))
+ ("mail\\.me" (gnus-use-scoring t))
+ ("list\\..*" (total-expire . t)
+ (broken-reply-to . t)))
+@end example
@node Listing Groups
@section Listing Groups
(@code{gnus-summary-save-article-vm}).
@item O p
+@itemx |
@kindex O p (Summary)
+@kindex | (Summary)
@findex gnus-summary-pipe-output
Save the current article in a pipe. Uhm, like, what I mean is---Pipe
the current article to a process (@code{gnus-summary-pipe-output}).
@node Incorporating Old Mail
@subsection Incorporating Old Mail
+@cindex incorporating old mail
+@cindex import old mail
Most people have lots of old mail stored in various file formats. If
you have set up Gnus to read mail using one of the spiffy Gnus mail
(if descr (concat "\n\t" (cdr descr)) "")))
@end lisp
+The following code may be useful to open an nnrss url directly from the
+summary buffer.
+@lisp
+(require 'browse-url)
+
+(defun browse-nnrss-url( arg )
+ (interactive "p")
+ (let ((url (assq nnrss-url-field
+ (mail-header-extra
+ (gnus-data-header
+ (assq (gnus-summary-article-number)
+ gnus-newsgroup-data))))))
+ (if url
+ (browse-url (cdr url))
+ (gnus-summary-scroll-up arg))))
+
+(eval-after-load "gnus"
+ #'(define-key gnus-summary-mode-map
+ (kbd "<RET>") 'browse-nnrss-url))
+(add-to-list 'nnmail-extra-headers nnrss-url-field)
+@end lisp
+
@node Customizing w3
@subsection Customizing w3
@cindex w3