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Subject: Re: Cygwin man does not recognise PerlRE ?
From: Warren Young <wyml@etr-usa.com>
In-Reply-To: <19032584.20151016193336@yandex.ru>
Date: Fri, 16 Oct 2015 14:26:19 -0600
Message-Id: <BC27919D-E6DD-490B-B682-D6EA77759373@etr-usa.com>
References: <19032584.20151016193336@yandex.ru>
To: cygwin@cygwin.com
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On Oct 16, 2015, at 10:33 AM, Andrey Repin <anrdaemon@yandex.ru> wrote:
> 
> Is there a possibility to build man for Cygwin with PerlRE support?

I’m curious: what sort of incantations do you frequently give to man which involve REs?

Maybe I’m just too old-school, but I wasn’t aware that modern man programs even supported REs.  Back when I was a boy, we said “man -k whatsit” and we liked it! :)

I think if I wanted to grep man pages with Perl syntax, I’d say

   grep -PRsl whatsit /usr/share/man

Poking around on machines near me, I see Lucifredi’s version of man — which doesn’t seem to support regexes — on OS X 10.10, FreeBSD 10.1, and CentOS 5.  Apparently RHEL moved to man-db in EL6 or EL7, since it’s on an EL7 box nearby.
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