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Subject: Re: [PATCH 0/9] powerpc: delete duplicated words
From:   Joe Perches <joe@perches.com>
To:     Randy Dunlap <rdunlap@infradead.org>,
        Christophe Leroy <christophe.leroy@csgroup.eu>
Cc:     linuxppc-dev@lists.ozlabs.org, Paul Mackerras <paulus@samba.org>,
        linux-kernel@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>
Date:   Sun, 26 Jul 2020 10:49:03 -0700
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On Sun, 2020-07-26 at 10:23 -0700, Randy Dunlap wrote:
> On 7/26/20 7:29 AM, Christophe Leroy wrote:
> > Randy Dunlap <rdunlap@infradead.org> a écrit :
> > 
> > > Drop duplicated words in arch/powerpc/ header files.
> > 
> > How did you detect them ? Do you have some script for tgat, or you just read all comments ?
> 
> Yes, it's a script that finds lots of false positives, so I have to check
> each and every one of them for validity.

And it's a lot of work too. (thanks Randy)

It could be something like:

$ grep-2.5.4 -nrP --include=*.[ch] '\b([A-Z]?[a-z]{2,}\b)[ \t]*(?:\n[ \t]*\*[ \t]*|)\1\b' * | \
  grep -vP '\b(?:struct|enum|union)\s+([A-Z]?[a-z]{2,})\s+\*?\s*\1\b' | \
  grep -vP '\blong\s+long\b' | \
  grep -vP '\b([A-Z]?[a-z]{2,})(?:\t+| {2,})\1\b'