[DFDL-WG] clarification needed: datetime and time

[Steve Hanson]

Hi Mike, 

The phrase " derived from the XML schema date/time type" just means that 
the pattern varies depends on whether the xsd type is date, dateTime or 
time, it does not mean that it is set up for parsing a date, dateTime or 
time value that conforms to the lexical space for the xsd type. The 
pattern values were chosen to be the typical patterns seen in the non-XML 
world. 

We can debate whether ZZZ is obsolescent and needs to be updated. IBM DFDL 
has shipped with ZZZ as far as I am aware.

Regards

Steve Hanson
Architect, 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:     dfdl-wg at ogf.org, 
Date:   29/01/2013 13:55
Subject:        [DFDL-WG] clarification needed: datetime and time
Sent by:        dfdl-wg-bounces at ogf.org



In the below. Should xs:datetime have trailing timezone as well? Right now 
it has no tz component.

Seems to me it should to match iso 8601 format which is what XSD uses.

Also, I believe we now think ZZZ is not the right behavior, and seems to 
be deprecated in ICU. The right thing is ZZZZZ.

calendarPatternKind
Enum
Valid values ‘explicit’, ‘implicit’
‘explicit’ means the pattern is given by dfdl:calendarPattern, 
‘implicit’ means the pattern is derived from the XML schema date/time 
type.


Logical Type 
Default Pattern
xs:date
yyyy-MM-dd
xs:dateTime
yyyy-MM-dd'T'HH:mm:ss
xs:time
HH:mm:ssZZZ
Annotation: dfdl:element, dfdl:simpleType 


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