From owner-freebsd-standards@freebsd.org Tue Sep 27 03:36:49 2016 Return-Path: Delivered-To: freebsd-standards@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4B5C9BEAEBE for ; Tue, 27 Sep 2016 03:36:49 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 3AFD2FC7 for ; Tue, 27 Sep 2016 03:36:49 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u8R3amFX024729 for ; Tue, 27 Sep 2016 03:36:49 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-standards@FreeBSD.org Subject: [Bug 213013] unicode private use chars incorrectly classified Date: Tue, 27 Sep 2016 03:36:49 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: standards X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: krader@skepticism.us X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-standards@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-standards@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Standards compliance List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Sep 2016 03:36:49 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213013 --- Comment #3 from Kurtis Rader --- Yes, you're missing something. The reason those code points are in the Arab= ic Presentation Forms code block is a historical accident. That is, contingent= on the development of Unicode over many years. From the PDF standards document= I linked to: > In addition, there is a contiguous range of another 32 noncharacter code = points in the BMP: U+FDD0..U+FDEF. For historical reasons, the range U+FDD0= ..U+FDEF is contained within the Arabic Presentation Forms-A block, but tho= se noncharacters are not =E2=80=9CArabic noncharacters=E2=80=9D or =E2=80= =9Cright-to-left noncharacters,=E2=80=9D and are not distinguished in any o= ther way from the other noncharacters, except in their code point values. They were reserved as private-use code points because they had not already = been assigned as characters (glyphs) and it was decided that another adding anot= her 32 private use code points would be useful. --=20 You are receiving this mail because: You are the assignee for the bug.=