IETF Logo Mail Archive

Re: [Json] Proposed minimal change for duplicate names in objects

John Cowan <cowan@mercury.ccil.org> Mon, 08 July 2013 11:55 UTC

Return-Path: <cowan@ccil.org>
X-Original-To: json@ietfa.amsl.com
Delivered-To: json@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 88AB121F924A for <json@ietfa.amsl.com>; Mon, 8 Jul 2013 04:55:09 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.58
X-Spam-Level:
X-Spam-Status: No, score=-3.58 tagged_above=-999 required=5 tests=[AWL=0.019, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UhVt7V0iil9y for <json@ietfa.amsl.com>; Mon, 8 Jul 2013 04:55:05 -0700 (PDT)
Received: from earth.ccil.org (earth.ccil.org [192.190.237.11]) by ietfa.amsl.com (Postfix) with ESMTP id 9C7AC21F91A5 for <json@ietf.org>; Mon, 8 Jul 2013 04:55:04 -0700 (PDT)
Received: from cowan by earth.ccil.org with local (Exim 4.72) (envelope-from <cowan@ccil.org>) id 1UwA21-0006Wa-VG; Mon, 08 Jul 2013 07:55:02 -0400
Date: Mon, 08 Jul 2013 07:55:01 -0400
From: John Cowan <cowan@mercury.ccil.org>
To: Vinny A <jsontest@yahoo.com>
Message-ID: <20130708115501.GB27795@mercury.ccil.org>
References: <B86E1D4B-1DC8-4AD6-B8B3-E989599E0537@vpnc.org> <CAK3OfOj3MNNhjwo2bMa5CgoqynzMRVvviBXC8szxt5D17Z7FDg@mail.gmail.com> <51D3C63C.5030703@cisco.com> <51D48023.1020008@qti.qualcomm.com> <20130703201143.GL32044@mercury.ccil.org> <00cd01ce7a9f$19adeaa0$4d09bfe0$@augustcellars.com> <00d701ce7aa6$cc5fe700$651fb500$@augustcellars.com> <CAK3OfOiWrWCvNQneokyycV1Jb98M=UR-U7z0dhxUjzVdf+PwDw@mail.gmail.com> <CAKd4nAhMfz_NAFL4YmLFX_=69JizWoPvLac+1_yr0K2LJap3DQ@mail.gmail.com> <72BA0BFC-1C4D-4537-8B39-8B32F38D63E3@yahoo.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <72BA0BFC-1C4D-4537-8B39-8B32F38D63E3@yahoo.com>
User-Agent: Mutt/1.5.20 (2009-06-14)
Sender: John Cowan <cowan@ccil.org>
Cc: Stephan Beal <sgbeal@googlemail.com>, "json@ietf.org" <json@ietf.org>
Subject: Re: [Json] Proposed minimal change for duplicate names in objects
X-BeenThere: json@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: "JavaScript Object Notation \(JSON\) WG mailing list" <json.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/json>, <mailto:json-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/json>
List-Post: <mailto:json@ietf.org>
List-Help: <mailto:json-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/json>, <mailto:json-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 08 Jul 2013 11:55:09 -0000

Vinny A scripsit:

> Could people come to a consensus on this if the proposed wording was
> similar to the above? I.e "Implementations MUST NOT send duplicate
> names; if received, parsers MAY NOT process the JSON, instead issuing
> an error. If implementations insist on supporting duplicated names,
> they MUST process in the following manner (insert boilerplate warnings
> about undesirable behavior)."

"MAY NOT" is not RFC 2119 language, and for good reason: it's ambiguous
between "must not" (as in "You may not leave the room") and "may" ("We
may not go, I don't know yet", which is synonymous with "We may go,
I don't know yet").

-- 
Some people open all the Windows;       John Cowan
wise wives welcome the spring           cowan@ccil.org
by moving the Unix.                     http://www.ccil.org/~cowan
  --ad for Unix Book Units (U.K.)
        (see http://cm.bell-labs.com/cm/cs/who/dmr/unix3image.gif)

v2.23.0 | Report a Bug | By Email