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From: Rob Browning <rlb@defaultvalue.org>
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Subject: Possible SpamAssassin node info documentation error.
Date: Wed, 15 Oct 2003 14:31:59 -0500
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In the current info pages (for 5.10.2), in the "SpamAssassin, Vipul's
Razor, DCC, etc" node, it suggests:

     (defun kevin-spamassassin ()
       (save-excursion
         (let ((buf (or (get-buffer " *nnmail incoming*")
                        (get-buffer " *nnml move*"))))
           (if (not buf)
               (progn (message "Oops, cannot find message buffer") nil)
             (set-buffer buf)
             (if (eq 1 (call-process-region (point-min) (point-max)
                                            "spamc" nil nil nil "-c"))
                 "spam")))))

but my experience is that this doesn't actually work because the
buffer (at least during a "B q") is narrowed to the headers.  For this
to work as advertized, you need to add a (widen) after setting the
buffer, perhaps like this (also happen to be using spamassassin in
this example rather than spamc):

     (defun kevin-spamassassin ()
       (save-excursion
         (let ((buf (or (get-buffer " *nnmail incoming*")
                        (get-buffer " *nnml move*")
                        ;; probably just respooling or tracing...
                        (set-buffer gnus-original-article-buffer))))
           (if (not buf)
               (progn (message "Oops, cannot find message buffer") nil)
             (set-buffer buf)
             (widen)
             (if (zerop (call-process-region (point-min) (point-max)
                                             "spamassassin" nil nil nil "-e"))
                 nil
               "spam")))))

Hope this helps.
-- 
Rob Browning
rlb @defaultvalue.org and @debian.org; previously @cs.utexas.edu
GPG starting 2002-11-03 = 14DD 432F AE39 534D B592  F9A0 25C8 D377 8C7E 73A4