Re: New "gnus-search" syntax and interface

["Jose A. Ortega Ruiz" <jao@gnu.org>]

On Fri, Nov 06 2020, Eric Abrahamsen wrote:

>> I'm trying it, and seems to be working, but with some unexpected
>> behaviour.  More concretely, if i put my cursor on a topic and try G G,
>> i don't always find results that are otherwise found when G G-ing on one
>> of its groups.
>
> Please do give more details about this if you notice anything. The code
> for collecting groups is relatively simple, and I don't quite see how
> the results could be different.

Hmmm, are nested topics supported?  That is, if i search on a topic that
contains subtopics, is the search including groups inside those
subtopics? 

I am trying for instance a query at the top Groups node, including all
my groups, to perform a global search, and it seems to never find any
results.

The same seems to happen with any nesting.  E.g.

    [Groups]
      [topic1]
        group1
        [subtopic1]
          group2

If i perform a successful query on [subtopic1] (which finds something in,
say group2), the same query on [topic1] will return an empty result.
Similarly, a query on [topic1] succeeding for group1 will fail when
performed on [Groups].

Regarding the queries performed over and over, i think i've found when
that happens.  If i issue a query with empty results (so i get a message
saying the nnselect ephemeral group is empty), from then on refreshing
the Groups buffer will repeat the query (or queries, they seem to
accumulate) again.  In Messages i see for instance the first time i
issue the query:

  Searching nnimap:group1...done
  Searching nnimap:group2...done
  Group nnselect:nnselect-877dqw8tq8.fsf contains no messages

And then from then on, a g in Groups will make the query be run again
(it takes as long as the first time), although in Messages i see only
the first two messages:

  Opening server
  Searching nnimap:group1...done
  Searching nnimap:group2...done

but no mention again of the ephemeral group. As you mentioned, this may
well be a problem in nnselect.

(By the way, all of this is searching nnimap groups from a local dovecot
server, using the IMAP engine.)

I hope this makes a bit more sense.  Please feel free to ask about any
further details!

Cheers,
jao