external dtd subset content

Tim Bray tbray at textuality.com
Fri Dec 12 15:37:28 GMT 1997

At 12:34 PM 12/12/97 +0100, james anderson wrote:
>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?

That's right.

>2? among the example DTD's we've found, some begin with an <?xml ... >
>form. others don't. isn't that form excluded from being a PI and thus
>from being a markupdecl?

I think that should be OK since a DTD is an external parsed entity.
But I've put your mail in the errata file to make sure it's clear enough.

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