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Date:   Thu, 8 Oct 2020 00:40:24 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     =?iso-8859-1?Q?N=EDcolas_F=2E_R=2E_A=2E?= Prado 
        <nfraprado@protonmail.com>
Cc:     Jonathan Corbet <corbet@lwn.net>,
        Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        lkcamp@lists.libreplanetbr.org, andrealmeid@collabora.com
Subject: Re: [PATCH] docs: Make automarkup ready for Sphinx 3.1+
Message-ID: <20201007234024.GY20115@casper.infradead.org>
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On Wed, Oct 07, 2020 at 11:12:25PM +0000, N?colas F. R. A. Prado wrote:
> While Sphinx 2 used a single c:type role for struct, union, enum and
> typedef, Sphinx 3 uses a specific role for each one.
> To keep backward compatibility, detect the Sphinx version and use the
> correct roles for that version.
> 
> Also, Sphinx 3 is more strict with its C domain and generated warnings,
> exposing issues in the parsing.
> To fix the warnings, make the C regexes use ASCII, ensure the
> expressions only match the beginning of words and skip trying to
> cross-reference C reserved words.

Thank you for doing this!

I have a feature request ... could you automarkup NULL as being :c:macro?
Or maybe just anything matching \<[[:upper:]_[:digit:]]*\>
(i may have my regex syntax confused ... a word composed of any
arrangement of upper-case, digits and underscores.)