Elegant. Thank you.

From: Mike Beckerle [mailto:mbeckerle.dfdl@gmail.com]
Sent: Wednesday, February 27, 2013 1:04 PM
To: Garriss Jr., James P.
Cc: dfdl-wg@ogf.org
Subject: Re: [DFDL-WG] Alternate Initiators?

dfdl:initiator="Message-ID Message-Id"

i.e., it's a whitespace separated list of alternatives.

There's also a property called dfdl:ignoreCase="yes", but that would allow "mEssAge-iD" as well, which you probably don't want.

On Wed, Feb 27, 2013 at 12:48 PM, Garriss Jr., James P. <jgarriss@mitre.org> wrote:

Consider the following IMF headers:

Message-ID: <CACQ76nh2VDypuwm1aHc1-s8ZmmyXg8XEosS6af6yurkVdT+8QQ@mail.gmail.com>

Message-Id: <208E8372-A9D9-468A-9B4B-BD97ED28F64C@garriss.org>

Notice the difference:

Message-ID:

Message-Id:

Per the RFC, only the first is legal, but both are used in practice, and we’d like to allow either. In our DFDL schema, “Message-ID” is an initiator, but suddenly we have two alternate initiators for the same element.

How we model this in DFDL?

TIA

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Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com