[DFDL-WG] Action 14: Propose DFDL entity scheme

[Alan Powell]

Hi Mike

%NL;  is a single character <LF> on those target platforms where that is 
the convention or <CR><LF> on others, etc. This is intended to make it 
easier for the same dfdl schema to parse messages from different 
platforms. I know we avoided target platform in DFDL and was expecting 
that this would cause some debate.

This will be a good discussion for tomorrow's call

Alan Powell

 MP 211, IBM UK Labs, Hursley,  Winchester, SO21 2JN, England
 Notes Id: Alan Powell/UK/IBM     email: alan_powell at uk.ibm.com 
 Tel: +44 (0)1962 815073                  Fax: +44 (0)1962 816898




"Mike Beckerle" <mbeckerle at OCO-INC.COM> 
22/01/2008 13:29

To
Alan Powell/UK/IBM at IBMGB, <DFDL-Technical-Core%IBMGB at uk.ibm.com>, 
<dfdl-wg at ogf.org>
cc

Subject
RE: [DFDL-WG] Action 14: Propose DFDL entity scheme






 
Is the &NL; supposed to represent a single character? Or can it be a CRLF?
 
There?s no notion of ?the target platform? in DFDL. We?ve specifically 
avoided this notion on purpose. So we need a separate property like 
newline=?&CR;&LF;? or newline=?&LF;? if we want &NL; to be meaningful, 
unless some other property is suitable.
 
There are some other Unicode whitespace and Unicode line-ending 
characters. Do we want to include those in the definitions of WSP and NL ? 
I recall there are 4 line-endings in Unicode.
 
?mikeb
 
From: dfdl-wg-bounces at ogf.org [mailto:dfdl-wg-bounces at ogf.org] On Behalf 
Of Alan Powell
Sent: Tuesday, January 22, 2008 6:32 AM
To: DFDL-Technical-Core%IBMGB at uk.ibm.com; dfdl-wg at ogf.org
Subject: Re: [DFDL-WG] Action 14: Propose DFDL entity scheme
 

All 

Attached is the latest proposal for DFDL 'entities' 

The main changes are: 
- No longer using XML entities as this proved to not meet all the 
requirements 
- New generic mnemonics for <NL> and others to represent the NL on the 
target platform. 



Alan Powell

MP 211, IBM UK Labs, Hursley,  Winchester, SO21 2JN, England
Notes Id: Alan Powell/UK/IBM     email: alan_powell at uk.ibm.com 
Tel: +44 (0)1962 815073                  Fax: +44 (0)1962 816898



 
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 











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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