From: Jakub Narebski <jnareb@gmail.com>
Date: Wed, 25 Nov 2009 10:16:52 GMT
Subject: Re: git send-email --notmuch expr
Message-ID: <m3hbsic3l5.fsf@localhost.localdomain>
In-Reply-To: <87d4375ne0.fsf@59A2.org>

Jed Brown <jed@59A2.org> writes:

> 	} elsif (/^(?:To|Cc|Bcc):/i) {
> 		print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
> 		next;
> 	}
> 
> This regex doesn't match these headers (is the leading ?: a typo?) so
> there is no warning.

(?: ... ) is in Perl non-capturing grouping

>From perlre(1)

  "(?:pattern)"
  "(?imsx-imsx:pattern)"
       This is for clustering, not capturing; it groups subexpressions
       like "()", but doesn't make backreferences as "()" does.

So it is not a bug, and it definitely should match... unless implicit
variable $_ (the default input and pattern-searching space) got
mangled.  It would be better to use explicit form:

   $variable =~ /pattern/

-- 
Jakub Narebski
Poland
ShadeHawk on #git