• From: John Cowan <jcowan@r...>
• To: Dylan Walsh <Dylan.Walsh@K...>, "xml-dev@x..." <xml-dev@x...>
• Date: Wed, 26 Jul 2000 10:33:00 -0400

Dylan Walsh wrote:

> I noticed in DTDs that some people will always use an parameter entity
> reference, rather than specifying a content model directly [...]

This is useful for making the content model flexible.  A document can
redefine the entity in the internal subset, thus extending the content
model for that particular document.

-- 

Schlingt dreifach einen Kreis um dies! || John Cowan <jcowan@r...>
Schliesst euer Aug vor heiliger Schau,  || http://www.reutershealth.com
Denn er genoss vom Honig-Tau,           || http://www.ccil.org/~cowan
Und trank die Milch vom Paradies.            -- Coleridge (tr. Politzer)

• References:
  • DTD conventions/best practice - using an parameter entity referen ceto specify element content, rather than doing it directly.
    • From: Dylan Walsh <Dylan.Walsh@K...>

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