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- From: Peter Murray-Rust <peter@ursus.demon.co.uk>
- To: xml-dev@ic.ac.uk
- Date: Sat, 13 Dec 1997 00:15:10
At 12:34 12/12/97 +0100, james anderson wrote:
>we're trying to understand the necessary form for the external dtd
>subset.
>in particular two questions have arisen.
>
>1? since the external subset contains markup declarations only, it
>would appear that it establishes no constraint on the root element. is
>it legitimate to use the same dtd for various xml documents, each with a
>different root element?
Good point! I have never really understood why it's necessary to have
consistency between the root element and the doctypedeclName. For example
If I am authoring HTML 2.0 (assume there is an official XML DTD) and I write:
<?xml version="1.0"?>
<!DOCTYPE P SYSTEM "html20.dtd">
<P>This is a para</P>
that is presumably valid, but:
<?xml version="1.0"?>
<!DOCTYPE HTML SYSTEM "html20.dtd">
<P>This is a para</P>
is invalid. Is this what the WG intends? If so, what's the rationale?
P.
Peter Murray-Rust, Director Virtual School of Molecular Sciences, domestic
net connection
VSMS http://www.nottingham.ac.uk/vsms, Virtual Hyperglossary
http://www.venus.co.uk/vhg
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