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From: prj@po.cwru.edu (Paul Jarc)
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Subject: Re: Question about article identification and backends.
Date: Mon, 19 May 2003 12:47:29 -0400
Organization: What did you have in mind?  A short, blunt, human pyramid?
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kai.grossjohann@gmx.net (Kai Gro=DFjohann) wrote:
> It seems that the current problem is: say you have read all of the
> articles in a certain group, that is, articles 1 through 100.  Now
> you move an article numbered 42 into that group.  It is unread.
> Then Gnus will think it is read.
>
> But it ought to be possible to tweak Gnus so that it just splits the
> read sequence from 1-100 into 1-41,43-100.

If all articles from 1 to 100 already exist, and we are inserting a
new article at position 42, then the new read list is 1-41,43-101.
The positions of all the later articles have to be changed.  Since
articles are currently *identified* by position, this is more work
than just a tweak.

> Maybe it is even possible using the backend interface: the backend
> could tell Gnus the new list 1-41,43-100 of read articles.

That's (sort of) how nnmaildir used to do it.  But it breaks the
agent, the cache, and 'seen marks, at least.


paul