[DFDL-WG] optional whitespace entity

[Steve Hanson]

James, please can you show us the scenario where you want to apply this?

I ask because I think it is the only example in DFDL where you can specify 
a DFDL delimiter and for there to be nothing for that delimiter in the 
data. I suspect this might have some ramifications for things like 
delimiter scanning and dfdl:initiatedContent. It clearly solves a problem 
for James, but I am wondering whether whether %WSP*; on its own should be 
allowed as a delimiter? 

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:   "Garriss Jr., James P." <jgarriss at mitre.org>
To:     "dfdl-wg at ogf.org" <dfdl-wg at ogf.org>, 
Date:   11/06/2013 16:19
Subject:        Re: [DFDL-WG] optional whitespace entity
Sent by:        dfdl-wg-bounces at ogf.org



You know, Tim, that is what I meant, but I just copied the syntax directly 
from Table 4.  Upon further review, I see that this table doesn’t give the 
complete syntax.  I wonder how many other people will just cut-and-paste 
directly from these tables.  It might be a good idea to put the complete 
syntax there.
 
In any case, thanks for the explanation.  That’s what I hoped it would do.
 
From: dfdl-wg-bounces at ogf.org [mailto:dfdl-wg-bounces at ogf.org] On Behalf 
Of Tim Kimber
Sent: Tuesday, June 11, 2013 11:02 AM
To: dfdl-wg at ogf.org
Subject: Re: [DFDL-WG] optional whitespace entity
 
I assume that you meant to write dfdl:initiator="%WSP*;" 

That will match zero or more whitespace characters. It will match and 
consume any leading white space before the element, and it will never fail 
to match. 

regards,

Tim Kimber, DFDL Team,
Hursley, UK
Internet:  kimbert at uk.ibm.com
Tel. 01962-816742 
Internal tel. 37246742




From:        "Garriss Jr., James P." <jgarriss at mitre.org> 
To:        "dfdl-wg at ogf.org" <dfdl-wg at ogf.org>, 
Date:        11/06/2013 15:48 
Subject:        [DFDL-WG] optional whitespace entity 
Sent by:        dfdl-wg-bounces at ogf.org 




<xsd:element name="Day" dfdl:lengthKind="delimited" dfdl:initiator="WSP*"> 

  
Will this element match if the initiator is not found (that is, even if 
there is not a space before element?  TIA--
 dfdl-wg mailing list
 dfdl-wg at ogf.org
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