empty tags and the XMl 1.0 spec
jtauber at jtauber.com
Fri Mar 12 19:29:16 GMT 1999
>"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 Tauber / jtauber at 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/
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