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- From: "James Tauber" <jtauber@jtauber.com>
- To: "Elliotte Rusty Harold" <elharo@metalab.unc.edu>, <xml-dev@ic.ac.uk>
- Date: Sat, 13 Mar 1999 03:23:28 +0800
>"Empty-element tags may be used for any element which has no content,
>whether or not it is declared using the keyword EMPTY. For
>interoperability, the empty-element tag must be used, and can only be
>used, for elements which are declared EMPTY."
>
>1. The "can only be used" part of the second sentence seems to
>contradict the the first sentence.
>
>2. "the empty-element tag must be used...for elements which are declared
>EMPTY" seems to contradict the assertiona that <NAME></NAME> and <NAME/>
>are the same thing.
>
>Is there any way out of this conundrum?
Yes. The term "for interoperability" is means it's not a requirement for
well-formed XML, but *if* you want to maintain interoperability with
pre-WebSGML SGML processors, then you should do it.
In other words, <NAME></NAME> is equivalent to <NAME/> *UNLESS* you want to
maintain interoperability with older SGML systems in which case you should
only use <NAME/> for elements declared EMPTY and not <NAME></NAME>.
Hope this helps.
James
--
James Tauber / jtauber@jtauber.com / www.jtauber.com
Associate Researcher, Electronic Commerce Network
Curtin University of Technology, Perth, Western Australia
Full-day XML Tutorial @ WWW8 : http://www8.org/
Maintainer of : www.xmlinfo.com, www.xmlsoftware.com and www.schema.net
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