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   Re: [xml-dev] How to spell "No PSVI" in XSLT 2.0 without getting sucked

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>> What do you see as the benefits of giving users this option -- of
>> validating against a schema but ignoring some of what that tells
>> you -- as well?
> It would allow W3C Schema to be used in the same way as relax ng or
> other schema languages that do not pollute the infoset: You might
> want to validate the input for the sake of validation, but want the
> stylesheet to work the same way as other occasions when you directly
> transform the document without validating (because you know it is
> already valid, for example).

That wasn't how I interpreted what Evan was saying. He said that the
schema would still supply the same Infoset as it would if the document
were validated against an equivalent DTD -- including default
attribute values and presumably default element values, given the
definition that he gave. So I don't think that non-pollution was *his*

I do think that the ability to not have the Infoset "polluted" by
augmentations that affect the structure of the node tree is a good
thing. But if I wanted that, I'd probably do the validation outside
the XSLT process, or not at all, rather than as part of the XSLT

It's an interesting, and separate, I think, question as to whether a
flag that indicates whether a document is valid or not should be
available within the stylesheet. From what I can tell, there's no way
of working that out at the moment -- an element that isn't valid looks
just the same as one that is valid against the xs:anyType type.



Jeni Tennison


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