SAX: Implied Attributes
David Megginson
ak117 at freenet.carleton.ca
Sun Apr 19 21:26:29 BST 1998
Tim Bray writes:
> At 09:00 PM 4/17/98 -0400, David Megginson wrote:
> >Should SAX level 1 allow parsers to report implied attributes by
> >providing null for AttributeList.getValue() (it does not currently do
> >so)? The only application I can think of right now is architectural
> >forms, where an implied attribute can prevent automatic derivation.
>
> Nothing in the XML spec suggests that anything should be done about
> #IMPLIED-but-absent attributes... there was such language but we
> deliberately took it out. -Tim
The XML 1.0 spec does not define most of the information model
provided by a parser, so it is not safe to assume that omission means
prohibition; however, I agree with you and with James (from a posting
a few months ago) that it makes sense to pass over unspecified
#IMPLIED attributes in SAX level 1.
Thanks, and all the best,
David
--
David Megginson ak117 at freenet.carleton.ca
Microstar Software Ltd. dmeggins at microstar.com
http://home.sprynet.com/sprynet/dmeggins/
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