[DFDL-WG] dfdl:calendarLanguage - should allow an expression?

[Steve Hanson]

We already have expression capability for the following properties that 
are potentially locale/platform sensitive:

encoding
byteOrder
binaryFloatRep
outputNewLine
textStandardDecimalSeparator
textStandardGroupingSeparator
textStandardExponentRep

Properties binaryPackedSignCodes and textZonedSignStyle are platform 
sensitive, but in practice it's unlikely that a single schema would be 
created that needed to handle (say) packed numbers from both IBM z/OS or 
IBM iSeries, or zoned numbers from both IBM and Micro Focus COBOL 
compilers. I'm happy to leave these as they are for 1.0.

Properties calendarTimeZone and calendarObserveDST could certainly be 
considered locale sensitive. I think properties like 
calendarFirstDayOfWeek and calendarDaysInFirstWeek and 
calendarCenturyStart less so.

Regards

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



From:   Mike Beckerle <mbeckerle.dfdl at gmail.com>
To:     Steve Hanson/UK/IBM at IBMGB, 
Cc:     dfdl-wg at ogf.org
Date:   29/05/2013 16:35
Subject:        Re: [DFDL-WG] dfdl:calendarLanguage - should allow an 
expression?



This argument would apply to anything that has locale-specific behavior. 

are there any other properties that should be revisited this way as well?


On Wed, May 29, 2013 at 4:58 AM, Steve Hanson <smh at uk.ibm.com> wrote:
DFDL has the design point that the combination of schema & data should 
give the same result regardless of locale and/or machine.  To create a 
schema that does vary across locale or machine requires the user 
deliberately to use expressions for the relevant DFDL properties 
(encoding, decimal separator, etc) and parameterise the schema, using 
either built-in DFDL variables or user-defined variables. 

However the dfdl:calendarLanguage property is only defined as a String, I 
think it should also allow an expression as otherwise a schema is tied to 
a particular locale for it's calendar language support. 

Regards

Steve Hanson
Architect, IBM Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at 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

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


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
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