Section 23.1 makes the definitive statement about when forward references are allowed, but it is true that expression properties also make the statement so yes the phrase should be added to the description of calendarLanguage. It is also missing from choiceDispatchKey, and from setVariable. Regards Steve Hanson Architect, IBM DFDL Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh@uk.ibm.com tel:+44-1962-815848 From: Mike Beckerle <mbeckerle.dfdl@gmail.com> To: "dfdl-wg@ogf.org" <dfdl-wg@ogf.org> Date: 13/02/2015 21:14 Subject: Re: [DFDL-WG] bug: calendarLanguage property can be expression, but does not say no forward references allowed. Sent by: dfdl-wg-bounces@ogf.org Well, of course dfdl:outputValueCalc can also have forward reference. I meant all properties except this. Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com Please note: Contributions to the DFDL Workgroup's email discussions are subject to the OGF Intellectual Property Policy On Fri, Feb 13, 2015 at 3:55 PM, Mike Beckerle <mbeckerle.dfdl@gmail.com> wrote: Every property that can be an expression needs to stipulate "The expression must not contain forward references to elements which have not yet been processed." There are only two exceptions which are for the message of asserts/discriminators. This phrase is missing for calendarLanguage. Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com Please note: Contributions to the DFDL Workgroup's email discussions are subject to the OGF Intellectual Property Policy -- dfdl-wg mailing list dfdl-wg@ogf.org https://www.ogf.org/mailman/listinfo/dfdl-wg Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU