[DFDL-WG] Simplified Escape Scheme V3

[Steve Hanson]

Alan

Comments:

- I think escapeBlockStart and escapeBlockEnd are better names, that way 
you can immediately see they are for use with escapeBlock.

- escapeKind.  Clarification to escapeBlock parsing behaviour. "On parsing 
the escapeStartString is removed from the beginning of the data and 
escapeEndString is removed from end of the data and any 
escapeEscapeCharacters are removed when they precede any other occurences 
of the escapeEndString in the data."

- extraEscapedCharacters. Clarification: "A space separated list of single 
characters that must be escaped in addition to in-scope markup"

- generateEscape. The behaviour when escapeKind = escapeCharacter and 
value is 'always' is not defined. I would prefer that:
a) The descriptions of 'whenNeeded' behaviour are moved into the 
escapeKind property to keep all the rules in one place.
b) generateEscape is renamed generateEscapeBlock and only applies to 
escapeKind = escapeBlock, as that is only when it has an effect.

Regards

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



Alan Powell/UK/IBM at IBMGB 
Sent by: dfdl-wg-bounces at ogf.org
17/04/2009 15:22

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Subject
[DFDL-WG] Simplified Escape Scheme V3







Attached is the latest version of escape schemes. It includes Steve and 
Mike's comments (although not renaming properties), removed escapeBlock2 
and added uses cases in section 5 which you might like to start with. 


The uses cases confirm that the syntax works with some minor 
clarifications but highlights two questions: 
1.      Should data containing the escapeEscapeCharacater cause escaping 
to be used if if so how should it be escaped. 
2.      Should we only look for escapeStartString at the beginning of the 
data.

  

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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