Re: [PATCH] docs: Make automarkup ready for Sphinx 3.1+

[Matthew Wilcox]

On Wed, Oct 07, 2020 at 11:12:25PM +0000, Nícolas 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.)