Undeclared elements error
cowan at locke.ccil.org
Thu Sep 17 21:44:14 BST 1998
Richard L. Goerwitz III wrote:
> 1) What if I use an element in a content model and I don't
> declare it?
>From clause 3.2:
# At user option, an XML processor may issue a warning when a
# declaration mentions an element type for which
# no declaration is provided, but this is not an error.
> 2) What if I declare an element in a content model that I
> don't use in any content model (and the element isn't the
> root element)?
I know of no context, XML or otherwise, where it is an outright error
to declare something and not use it. At most, that provokes a warning.
We *mention* "our vast nuclear arsenal" so that
we won't have to *use* it.
-- Douglas Hofstadter on the use/mention distinction
John Cowan http://www.ccil.org/~cowan cowan at ccil.org
You tollerday donsk? N. You tolkatiff scowegian? Nn.
You spigotty anglease? Nnn. You phonio saxo? Nnnn.
Clear all so! 'Tis a Jute.... (Finnegans Wake 16.5)
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