[DFDL-WG] Reducing the number of DFDL properties.

[Alan Powell]

Mike

A number of people at IBM have become concerned at the number of 
properties in DFDL and have identified a number of 'usability' properties 
that could be dropped. They feel that we should be simplifying the 
properties wherever possible and not introducing multiple ways of doing 
the same function without very good reason.

The following are offered for consideration.

lengthKind='nullterminated'
This is just shorthand for lengthKind=delimited and terminator='%Null'. It 
was felt this this is not even the most common terminator so why have a 
special case?
trimKind
It is felt that there aren't any cases when you would want to pad but not 
trim and vice versa so make padKind control both.
typeSubstitution.
Is this needed in DFDL v1?

Can you consider these before the call next week

Alan Powell

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