[DFDL-WG] Fw: errata on number of fractional second digits

[Steve Hanson]

Erratum 2.68 updated to reflect below. Spec draft r17 contains the change.

Regards
 
Steve Hanson
Architect, IBM DFDL
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at uk.ibm.com
tel:+44-1962-815848
----- Forwarded by Steve Hanson/UK/IBM on 22/07/2014 14:43 -----

From:   Steve Hanson/UK/IBM
To:     "Cranford, Jonathan W." <jcranford at mitre.org>, 
Cc:     "dfdl-wg at ogf.org" <dfdl-wg at ogf.org>, dfdl-wg-bounces at ogf.org
Date:   09/07/2014 18:21
Subject:        Re: [DFDL-WG] errata on number of fractional second digits


Jonathan

The two statements apply to different pattern symbols. The first is for 
the S symbol, the second is for the I symbol. However, it is clearer if 
the implementer uses the same precision for each, so the I symbol should 
change to match the S symbol. 

Regards
 
Steve Hanson
Architect, IBM DFDL
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at uk.ibm.com
tel:+44-1962-815848



From:   "Cranford, Jonathan W." <jcranford at mitre.org>
To:     "dfdl-wg at ogf.org" <dfdl-wg at ogf.org>, 
Date:   08/07/2014 16:07
Subject:        [DFDL-WG] errata on number of fractional second digits
Sent by:        dfdl-wg-bounces at ogf.org



Not sure if this has been addressed by a subsequent errata or not, but I 
just noticed something that should be corrected in the spec.

Section 13.11.1 is on the dfdl:calendarPattern property.  The following 
two statements are made about the number of fractional second digits.

-                "Any number of fractional seconds "S" may by specified in 
the pattern and accepted by implementations, but an implementation is free 
to represent a limited number of fractional seconds internally. Excess 
fractional seconds are truncated, not rounded up. At least millisecond 
accuracy must be implemented." (Section 13.11.1)
-                "The number of fractional second digits supported is 
implementation dependent but must be at least one." (Section 13.11.1)

These two statements are not consistent.  I believe the second one should 
be corrected to say that the minimum # of fractional second digits is 
three (to support a minimum of millisecond accuracy).

I'm working through the last version that was put out for public comment 
(v1.0.4), so my apologies if this has already been corrected.

FYI,

--
Jonathan W. Cranford 
Senior Information Systems Engineer
The MITRE Corporation (http://www.mitre.org)

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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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