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   Can an element be sometimes empty?

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  • From: Michel Rodriguez <mrodrigu@ieee.org>
  • To: xml-dev@lists.xml.org
  • Date: Tue, 25 Jul 2000 13:12:39 -0400 (EDT)


I came accross an interesting albeit theoretical problem today: can an
element in a well-formed XML document be sometimes empty and sometimes

  <weird_element>with a content </weird_element>

I saw nothing in the spec about this situation, but on the other hand this
poor well-formed document has no way of ever becoming valid, as the spec
states (rule 46) that an element's contentspec is either EMPTY or MIXED or
children. So you can't write a DTD for it.

Expat does not seem to have a problem with it though.

Is this a hole in the spec or did I miss something?

Michel Rodriguez


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