[DFDL-WG] Minutes of DFDL working group call 23rd Aug 2007

[Steve Hanson]

Minutes

Attendees: Geoff Judd, Steve Hanson, Simon Parker


a) Discussed Mike's length proposal #2:

Length: Plan A prefered 
- Noted that decoupling length and lengthUnits allows each to be specified 
at different scopes (pros and cons to this)

Occurs:  Plan C discussed and preferred in principle to Plans A and B. 
However:
- What happens when we have both an occurs separator and a stop value, eg, 
 a,b,c,d,, - it looks like occursKind can't handle this
- Currently dfdl:length can not be used to define the length of  an 
enclosing group, only a simple value
- Not clear therefore that the 'Number of occurrences defined by size of 
bucket' is supported?


b) Discussed Mike's opaque proposal #2 

- Looks good
- Need a description of modelling an array of bits where overall length 
not a multiple of 8 bytes - no simple type for a bit
- Therefore need to state how this is supported using hexBinary or 
base64Binary (pad with 0's on parse, lose trailing 0's on write) 


Regards, Steve

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





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