Re: [ubl] Re: Packaging team call

[Paul Thorpe <thorpe@oss.com>]

On Mon, 15 Mar 2004 jon.bosak@sun.com wrote:

> [thorpe@oss.com:]
> 
> > The mapping from XSD to ASN.1 can handle substitution groups.
> 
> Do you mean that ASN.1 has natively a mechanism that will allow ad
> hoc enumeration extensions of the kind sought by the people who
> want to use substitution groups with code lists, or do you mean
> that given a set of schemas in which such an extension has been
> made, you can generate a revised ASN.1 UBL specification that
> reflects that extension?
> 
> Jon

I can generate a revised ASN.1 UBL specification that reflects that
extension.  ASN.1 uses a CHOICE for mapping substitution groups so that
either the original or substitution can be expected in a XML document or
in a binary message.

Paul

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