See the property description in the DFDL spec for dfdl:initiator. It can be a space-separated list (there are several DFDL properties like this).

Regards

Steve Hanson
Architect, Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848



From:        "Garriss Jr., James P." <jgarriss@mitre.org>
To:        "dfdl-wg@ogf.org" <dfdl-wg@ogf.org>,
Date:        27/02/2013 17:48
Subject:        [DFDL-WG] Alternate Initiators?
Sent by:        dfdl-wg-bounces@ogf.org

---

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:
    vs
    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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