From owner-freebsd-bugs@FreeBSD.ORG Thu Mar 12 22:08:44 2015 Return-Path: Delivered-To: freebsd-bugs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C4658BE9 for ; Thu, 12 Mar 2015 22:08:44 +0000 (UTC) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 9012E1BA for ; Thu, 12 Mar 2015 22:08:44 +0000 (UTC) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.14.9/8.14.9) with ESMTP id t2CM8ihh002464 for ; Thu, 12 Mar 2015 22:08:44 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 198552] awk unmatched right parenthesis in regular expressions Date: Thu, 12 Mar 2015 22:08:44 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 9.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: weeks@iastate.edu X-Bugzilla-Status: New X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Mar 2015 22:08:44 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198552 Bug ID: 198552 Summary: awk unmatched right parenthesis in regular expressions Product: Base System Version: 9.3-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: bin Assignee: freebsd-bugs@FreeBSD.org Reporter: weeks@iastate.edu Created attachment 154253 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=154253&action=edit Patch to awk 20121220 b.c awk version 20121220 disallows the use of an unmatched right parenthesis in regular expressions: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ $ awk 'BEGIN { print match("...)", ")") }' awk: illegal primary in regular expression ) at source line number 1 context is BEGIN { print match("...)", >>> ")") <<< ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The unmatched right parenthesis should be allowed in this context, as POSIX.1-2008 (http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_04_03) states the following in section 9.4.3 (ERE Special Characters): "The shall be special when matched with a preceding , both outside a bracket expression." and in section 9.5.1 (BRE/ERE Grammar Lexical Conventions) (http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_05_01), the description of the "SPEC_CHAR" token contains the following exception: "The close-parenthesis shall be considered special in this context only if matched with a preceding open-parenthesis." I contacted Mr. BWK, who agreed that it was a bug. I then attempted to fix it using the attached patch, which I submitted to BWK, but didn't get a response. Consequently, don't have high hopes for this issue being fixed upstream, but I'm submitting this bug report so that it is documented somewhere. -- Nathan Weeks IT Specialist USDA-ARS Corn Insects and Crop Genetics Research Unit Crop Genome Informatics Laboratory Iowa State University http://weeks.public.iastate.edu/ -- You are receiving this mail because: You are the assignee for the bug.