George Cristian Bina <[EMAIL PROTECTED]> writes:

> Michael Smith wrote:
> [...]
>  > I guess I am still not convinced that it's impossible to create a
>  > locating-rule system that can solve the problems you have
>  > described. It may not solve the problem as easily as the PI would,
>  > but it would solve it better.
> 
> If you have two identical documents valid against the lite version of 
> the schema

In that case, for the purpose of validating that document, before
any changes are made to it, I can't see how it would making
any difference at all which schema is used.

> then it is impossible to tell that one is intended to be used 
> with the lite schema and the other with the full schema.

I guess I am unclear about what "intended to be used with the lite
schema" means in this case.

Does it mean the following?

Users receive the document in a state in which it validates
against the lite schema. Then, they need to add to, change, or
delete content of the document for some end purpose. And that end
purpose requires them to keep the document in a state that is
constrained to validating against the lite version of the schema.

If that's not what it means, what does it mean?

And if that _is_ what it means, then I think the proposed PI is
not a particularly robust or reliable way of ensuring that the
contents of the document continue to be constrained to the lite
schema once users are done editing it.

  --Mike

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