- dfdl-wg - lists.ogf.org

OGF DFDL WG Call Agenda 2013-08-13 - 1 hour later from this week onwards
by Steve Hanson 13 Aug '13

13 Aug '13

Please find agenda for call on Redmine at http://redmine.ogf.org/dmsf_files/13104?download= Regards Steve Hanson Architect, IBM Data Format Description Language (DFDL) Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh(a)uk.ibm.com tel:+44-1962-815848

1 0

Rescheduled: OGF DFDL WG Call (13 Aug 16:00 GDT in DE3S09)
by Steve Hanson 13 Aug '13

13 Aug '13

OGF DFDL WG weekly call dial-in details. Passcode for Participants: 5381214 Canada Toll-Free 888-426-6840 China Toll-Free 10-800-711-1071 CHINA NETCOM GROUP USERS China Toll-Free 10-800-110-0996 CHINA TELECOM SOUTH USERS France Toll-Free 0800-94-0558 Germany Toll-Free 0800-000-1018 India Toll-Free 000-800-100-1176 Ireland Toll-Free 1-800-943-427 Israel Toll-Free 1-809-417-783 United Kingdom Caller Paid 0-20-30596451 United Kingdom Toll-Free 0800-368-0638 USA Caller Paid 215-861-6239 USA Toll-Free 888-426-6840 Other international numbers available - e-mail smh(a)uk.ibm.com. OGF DFDL Home: http://www.ogf.org/dfdl Redmine DFDL: http://redmine.ogf.org/projects/dfdl-wg Moving to 1 hour later from 13th August

1 0

OGF DFDL WG Call Agenda 2013-08-13 - PLEASE READ NOW
by Steve Hanson 12 Aug '13

12 Aug '13

Please find agenda for call on Redmine at http://redmine.ogf.org/dmsf_files/13104?download= IBM are requesting a change of time for future calls, so it starts one hour later. Please can you reply if that is acceptable, and whether your answer applies to this week's call. Regards Steve Hanson Architect, IBM Data Format Description Language (DFDL) Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh(a)uk.ibm.com tel:+44-1962-815848

3 2

Errata 3.1 issue: hiddenGroupRef allowed (or not) on xs:choice
by Mike Beckerle 12 Aug '13

12 Aug '13

The language of Erratum 3.1 state that the dfdl:hiddenGroupRef property should be allowed on xs:choice schema components. This is a major language change that we should consider carefully. Previously it was allowed only on xs:sequence, and I believe that should be the only allowed usage. Can we review when we made the decision to broaden this to xs:choice as well? ...mikeb -- Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com

2 1

Cancelled: OGF DFDL WG Call
by Steve Hanson 25 Jul '13

25 Jul '13

Cancelled as Steve is on holiday

1 0

Cancelled: OGF DFDL WG Call
by Steve Hanson 25 Jul '13

25 Jul '13

Cancelled as Steve is on holiday

1 0

proposal: add fn:trace function to DFDL
by Mike Beckerle 25 Jul '13

25 Jul '13

I have found working with DFDL expressions basically impossible without the fn:trace function to help debug them. I am not sure how I would write a tutorial about expressions without using fn:trace in it to illustrate what is going on in the expressions. In the interests of keeping the tutorials portable I suggest we add the fn:trace function. fn:trace($value as item()*, $label as xs:string) as item()* Summary: Provides an execution trace intended to be used in debugging queries. The notation item()* means any node sequence including an empty node sequence. The input $value is returned, unchanged, as the result of the function. In addition, the inputs $value, converted to an xs:string, and $label may be directed to a trace data set. The destination, format, and ordering of the output of this trace data set is implementation specific. Related Issue: I don't see any language in the spec where we flat out say that a node sequence in the expression language is a sequence of Infoset Element Information Items. We should add this near the begining of section 23. -- Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com

2 2

Using a discriminator on a simple type
by Steve Hanson 25 Jul '13

25 Jul '13

I know we discussed this on Tuesday's call, but I am really struggling with why I would ever want to do it. It seems to me it is an accident waiting to happen. A type is an abstract reusable thing, I have no idea where it will end up being used, so it is positively dangerous for a discriminator to appear. What is it discriminating? Answer: any surrounding point of uncertainty, no matter where that might be. Please can someone provide me with a real use case for this? Regards Steve Hanson Architect, IBM Data Format Description Language (DFDL) Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh(a)uk.ibm.com tel:+44-1962-815848 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

2 1

OGF DFDL WG Call Minutes 2013-07-23/24
by Steve Hanson 25 Jul '13

25 Jul '13

Please find minutes from the above two calls at http://redmine.ogf.org/dmsf_files/13097?download=. Errata document is now at v013 here: http://redmine.ogf.org/dmsf_files/8104?download= Action 140 errata addendum at v001 here: http://redmine.ogf.org/dmsf_files/13017?download= Next call is in 3 weeks time due to holidays. Regards Steve Hanson Architect, IBM DFDL, Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh(a)uk.ibm.com tel:+44-1962-815848

1 0

proposal: errata: add rawbytes as optional feature
by Mike Beckerle 24 Jul '13

24 Jul '13

I believe rawbytes should be an optional feature. It is a quite complex feature to implement, and many implementations may not want to bother. Also since lengthKind='delimited' is optional, and that is the primary use case for rawBytes, I think we should be consistent and add rawbytes to the list of optional features. ...mike -- Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com

2 1