[DFDL-WG] DFDL Bidirectional Support

[Steve Hanson]

Alan, Mike

1.1. textBiDiTextType. I am ok with 'left' & 'right'. It's unambiguous. If 
you drop the terms, then the enums for textBiDiOrientation would have to 
change (and I think these came from OMG CAM model?)

1.1. textBiDiTextShape.   From reading the referenced primer, whether the 
character includes shape is encoding dependent.  If when unparsing the 
output is in an encoding that does not include the shape then the 
assumption has to be that shape is added by the presentation layer. So do 
we need the property? 

1.1. textBiDiNumeralShapes. Again do we need this? Presumably the Hindi 
numbers have different Unicode code points anyway, so round tripping is 
preserved.

1.2.1. I'm not sure we should be referring to DFDL properties in the 
infoset definition.

It would be interesting to know which of these properties have been added 
to IBM WTX 8.2. But we should also bear in mind that a WTX map receives 
the physical data in the native encoding, and not a logical equivalent.

Regards

Steve Hanson
Programming Model Architect, WebSphere Message  Brokers,
OGF DFDL WG Co-Chair,
Hursley, UK,
Internet: smh at uk.ibm.com,
Phone (+44)/(0) 1962-815848



From:
Mike Beckerle <mbeckerle.dfdl at gmail.com>
To:
Alan Powell/UK/IBM at IBMGB
Cc:
dfdl-wg at ogf.org
Date:
26/08/2009 15:30
Subject:
Re: [DFDL-WG] DFDL Bidirectional Support
Sent by:
dfdl-wg-bounces at ogf.org


With my comments on it.

On Tue, Aug 25, 2009 at 11:16 AM, Alan Powell <alan_powell at uk.ibm.com
>wrote:

Attached is a proposal for support for bidirectional script in DFDL 

The support for bi-directional data consists of  

1.        Additional DFDL properties to describe bidirectional data in 
instance documents 

2.        The bi-directional characteristics of string information items 
in the infoset 

3.        The ability to enter bidirectional strings in a DFDL schema 




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

 

 



 

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#### ggf-dfdl-supplement-bidirectional-text-properties-v1.0-002.doc moved 
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