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From: Yuri D'Elia <wavexx@users.sf.net>
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Subject: read/unread counts of a group
Date: Sun, 02 Jan 2011 19:56:41 +0100
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Hi everyone. Can somebody explain the format of (gnus-info-read group)?

it seems that getting the current article count of a group is
messy. Right now, I have to do:

      (let* ( (name (gnus-info-group g))
              (read (or
		      (and (listp (car (gnus-info-read g)))
			(cdar (gnus-info-read g)))
		      (cdr (gnus-info-read g))))
              (unread (gnus-group-unread name)) )
	(when (and (numberp read) (numberp unread))
	  (+ read unread)))

to support all possible outputs of `gnus-info-read', then sum it to
(gnus-group-unread name) to get the total number of articles.

I wrote a little library to display popup notifications for new
messages:

  http://www.thregr.org/~wavexx/hacks/gnus-desktop-notify/

I need the current article count to see if new messages were received
after the last check.

Thanks for any clarification.