[DFDL-WG] Proposals for textPadCharacter

[Tim Kimber]

I'm in general agreement with the proposals, apart from the suggestion 
that we have separate properties for each simple data type. I understand 
that strings are generally right-padded with spaces, and numbers 
left-padded with zeros. However, I don't know of any common convention for 
padding booleans or calendar types.

If a user wants to specify a padding character for all integers, they 
already have several options:
- set textPadCharacter explicitly on each simple element that requires 
padding
- put textPadCharacter into a format block, and use that format block ( or 
more likely, another derived from it ) for all integers
- create a restriction of xs:int ( or whatever ) , add the required 
dfdl:textPadCharacter to it, and ensure that all other padded integers 
types are restrictions of it.

Exactly the same applies to textStringJustification, 
textBooleanJustification, so whatever the outcome of this, we should adopt 
a consistent approach for both properties.

regards,

Tim Kimber, Common Transformation Team,
Hursley, UK
Internet:  kimbert at uk.ibm.com
Tel. 01962-816742 
Internal tel. 246742






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