linux-kernel - Re: [PATCH RFC v2] checkpatch: extend attributes check to handle more patterns

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Message-ID: <4317722a8dc93b6de1dc974a8cb51c7f22d86ecf.camel@perches.com>
Date:   Fri, 23 Oct 2020 14:04:13 -0700
From:   Joe Perches <joe@...ches.com>
To:     Dwaipayan Ray <dwaipayanray1@...il.com>
Cc:     linux-kernel-mentees@...ts.linuxfoundation.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: Re: [PATCH RFC v2] checkpatch: extend attributes check to handle
 more patterns

On Sat, 2020-10-24 at 02:27 +0530, Dwaipayan Ray wrote:
> Also I tried the pattern  attr =~ s/^_*(.*)_*$/$1/
> for trimming the _ earlier. I think it doesn't trim the
> trailing underscores in the suffix as (.*) captures everything greedily.
>
> Is the iterative one perhaps okay instead?
> while($attr =~ s/(.*)_$/$1/) {}

Then perhaps
 
	$curr_attr =~ s/^_+//; $curr_attr =~ s/_+$//;