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Date: Thu, 2 Nov 2023 21:27:22 +0000
From: Eric Wong <e@80x24.org>
To: David Wei <dw@davidwei.uk>
Cc: meta@public-inbox.org
Subject: Re: lei - dfn filters for net/* catching drivers/net/*
Message-ID: <20231102212722.M583684@dcvr>
References: <0ac65bb7-9a27-4bdf-9f3f-7419a3e802b6@davidwei.uk>
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David Wei <dw@davidwei.uk> wrote:
> Hi,
> 
> I have a problem with lei dfn filters. Here is my query:
> 
> lei q -o ~/Mail/overlay -I https://lore.kernel.org/all -t '(dfn:net/* OR dfn:drivers/net/ethernet/mellanox/mlx5/* OR dfn:drivers/net/ethernet/broadcom/bnxt/*) AND tc:netdev@vger.kernel.org AND rt:2.week.ago..'
> 
> I'm seeing patches that touch drivers/net/* whereas I only want to match
> net/*.
> 
> I tried changing it to dfn:^net/* and dfn:b/net/* but neither is
> working,

Right, ^ is a regexp thing and I don't think Xapian supports anything
like it.

> I also read the Xapian docs: https://xapian.org/docs/queryparser.html
> but didn't see anything more than * wildcards.
> 
> Could you please advise on how I can limit my query to only net/*?

I'm not an expert in Xapian's parser, either, but I think `AND NOT'
is appropriate here.  So something like:

	dfn:net/* AND NOT dfn:drivers/net/*

Would be helpful to know if it works for you.
(having NOT only is very expensive and not allowed via the web interface,
but combining it a positive match should be fine)