RE: [Bug 5462] Can sml:nilref="true" be specified on a non-SML reference?

I don't see a problem here since the "MUST ignore" is directed at SML validators and not at XML Schema processors.

From: public-sml-request@w3.org [mailto:public-sml-request@w3.org] On Behalf Of Sandy Gao
Sent: Friday, February 08, 2008 7:26 AM
To: public-sml@w3.org
Subject: Re: [Bug 5462] Can sml:nilref="true" be specified on a non-SML reference?


Michael typed in IRC some text related to this topic. It may be worthwhile to take a look there.

> Processors MUST ignore an sml:nilref attribute when present on an element that
> is not an SML Reference [4.1.1 SML Reference], ...

I would want to avoid "MUST ignore", because it's not ignored in, e.g., schema validation, rule checking, etc. Maybe something like "has no effect" is more appropriate. ("No effect" should already be a consequence from it's normative definition/semantics, so no need to use "MUST".)

Thanks,
Sandy Gao
XML Technologies, IBM Canada
Editor, W3C XML Schema WG<http://www.w3.org/XML/Schema/>
Member, W3C SML WG<http://www.w3.org/XML/SML/>
(1-905) 413-3255 T/L 313-3255


bugzilla@wiggum.w3.org
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2008-02-07 07:03 PM

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[Bug 5462] Can sml:nilref="true" be specified on a non-SML reference?








http://www.w3.org/Bugs/Public/show_bug.cgi?id=5462


virginia.smith@hp.com changed:

          What    |Removed                     |Added
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          Keywords|editorial                   |needsReview




------- Comment #2 from virginia.smith@hp.com  2008-02-08 00:03 -------
Section 4.2.5 now reads (last sentence is new):

4.2.5 Null SML References

An null SML reference is an explicit declaration of intent by the document
author that the SML reference itself does not exist, and a processing directive
(not a hint) to processors not to attempt to recognize any reference schemes in
it. If an SML reference is recognized as null, then processors MUST NOT attempt
to resolve it.

Processors MUST ignore an sml:nilref attribute when present on an element that
is not an SML Reference [4.1.1 SML Reference], in which case the consumer MAY
issue a warning to its invoker.