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- From: rbourret@dvs1.informatik.tu-darmstadt.de (Ron Bourret)
- To: xml-dev@ic.ac.uk
- Date: Tue, 30 Jun 1998 18:51:21 +0200
A while back, we got rid of the RootElement attribute from the XSchema element. The reason was that an XSchema could just be a set of
elements to be included elsewhere. If you wanted to know what the root was, you
could look at the top element in the XML file.
I now believe we should bring RootElement back as an optional attribute
(NMTOKEN, #IMPLIED). The primary reason is for authoring, although it would
also be useful in DTD exploration.
For example, suppose I have a generic XML editor. I pick an XSchema from a list
of XSchemas and want to start writing. But where do I start? If the XSchema is
just a set of elements, I can pick my own root. But if the XSchema creator had
a starting place in mind, like the <HTML> element in HTML, I need to start in
the correct place or I won't create a valid file. Therefore, the XSchema should
provide this information.
When an XSchema element is used as a subelement, the RootElement attribute is
ignored. This is the case in which a stand-alone XSchema is included inside a
larger, comprehensive XSchema.
-- Ron Bourret
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