answer to Eric's question on DTD extensions [Fwd: DTD structure]

[Subbarao Kambhampati <rao@asu.edu>]

While general inheritance is not supported, one level internal overrides to 
an external DTD are supported...


>Date: Mon, 02 Apr 2001 22:50:15 -0700 (MST)
>From: Ullas Nambiar <mallu@asu.edu>
>Subject: DTD structure
>To: rao@asu.edu
>
>
>
>Source: XML companion - Niel Bradley.
>
>"Some DTD declarations maybe stored within the document, called "internal
>subset", remaining stored in a separate data file, are described as
>"external subset" of DTD.
>
>An entity declaration in the internal subset can be used to override the
>value of an entity in the external subset.
>
>example.
>
><!DOCTYPE MYBOOK SYSTEM "C:\DTDS\MYBOOK.DTD" [
><!ENTITY % paraModel "#PCDATA | STUB | SUP">
>]>
>
>
>This does make it look like a one level inheritance occuring.
>
>Ullas
>
>
>"Well Begun is Half Done"