Re: marking articles at group exit

[Ted Zlatanov <tzz@lifelogs.com>]

On Fri, 14 Feb 2003, niklas.morberg@axis.com wrote:
> Ted Zlatanov <tzz@lifelogs.com> writes:
> 
>> I have the following in spam.el:
>>
>>   (let ((articles gnus-newsgroup-articles)
>> 	article tomove)
>>     (dolist (article articles)
>>       (gnus-summary-remove-process-mark article)
>>       (when (eq (gnus-summary-article-mark article) gnus-spam-mark)
>> 	(gnus-summary-mark-article article gnus-expirable-mark)
>> 	(push article tomove))))
>>
>> but it produces errors "Can't find article %d" for every article
>> that is in the newsgroup, but is not visible when
>> gnus-summary-remove-process-mark runs (at least, I think that's the
>> problem).  Is there a better way of doing the removal of the
>> process mark from all articles?
> 
> I don't know this at all, but greping for g-s-r-p-m seems to
> indicate that you don't populate articles in the same way as
> most other implementations in gnus. The common case seems to
> be:
> 
>   (let ((articles (gnus-summary-work-articles n))
> 
> Could that be it?

This is what you call when you want to get the articles the user wants
you to work with; gnus-summary-move-article would use this for
instance.  What I want instead is the list of articles in the group
that are visible to the user, assuming that the user only cares about
those articles to be processed when he exits the group.  It seems,
from looking at the gnus-summary-work-articles source, that I have to
go through the summary buffer line by line and ask for the article
number of each line.  That seems like a very clumsy way to do it, and
I would like to avoid it in favor of a more reusable approach if one
exists.

To sum up what I need: I need to go through the articles visible in
the summary buffer and a) take the process-mark off, and b) set the
process-mark on those that match some criteria.  Later I call
gnus-summary-move-article and it will operate on those process-marked
articles.

Thanks
Ted