linux-kernel - Re: [RFC v2 18/38] docs: sphinx/kernel

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Message-ID: <87cyfp3ltp.fsf@trenco.lwn.net>
Date: Mon, 10 Feb 2025 07:40:02 -0700
From: Jonathan Corbet <corbet@....net>
To: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc: Linux Doc Mailing List <linux-doc@...r.kernel.org>, Greg Kroah-Hartman
 <gregkh@...uxfoundation.org>, linux-kernel@...r.kernel.org
Subject: Re: [RFC v2 18/38] docs: sphinx/kernel_abi: use AbiParser directly

Mauro Carvalho Chehab <mchehab+huawei@...nel.org> writes:

> I took a look on Markus work: it was licensed under GPL 3.0 and it was
> written in 2016. There were several changes on kerneldoc since them,
> including the addition of a regex that it is not compatible with
> Python re[1]:
>
>         $members =~ s/\bSTRUCT_GROUP(\(((?:(?>[^)(]+)|(?1))*)\))[^;]*;/$2/gos;
>
> This one use:
>
> 	- recursive patterns: ?1
> 	- atomic grouping (?>...)
>
> Also, it is hard to map what he does with the existing script. I'm
> opting to write a new script from scratch.

That's fine, I just wanted to be sure you'd had a chance to look at
it... 

>     Another option would be to re-implement such regexes without using
>     such advanced patterns.

Seems like a preferred option if that can be done.  Banging one's head
against all those regexes is often the hardest part of dealing with that
script; anything that makes it simpler is welcome.

Thanks,

jon