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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Another look at namespaces
Tim Berners-Lee wrote:
>
>
> We either have a different use of words or a very serious
> problem.
I suspect the potential for a serious problem.
> Whereas with natural langauge, meanings change and
> grow and everyone has slightly different associations with a word,
> in computer languages we need to build on top of XML we need
> to have the ability to define meaning precicely in terms of
> other existing languages.
>
> If you believe that "HTML 4.0" specification - and a schema for XHTML -
> can decied that <p> cannot occur in <head> then do you not grant
> th ewriters of the spec the right to make that definitiove assertion (in
> prose
> or schema) whatever code someone may or may not write to produce or
> parse <p> inside <head>
Yes, but with respect to the DTD, not the namespace.
There are no grounds to take issue with the XHTML specification where it
prescribes a specific interpretation to the element
<{http://www.w3.org/TR/xhtml1/strict}p> in the presence of the respective
document type declaration
<!DOCTYPE
html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/strict.dtd">
but any claims that the interpretation should arise directly from the
evocation of the namespace "{http://www.w3.org/TR/xhtml1/strict}p" are
misleading. That is, the permission granted in 3.1.1#4, that the external
identifier need not be present, ascribes to the respective root xmlns
attribute a meaning which is neither asserted in the namespace recommendation,
nor adequately specified in the XHTML pr itself.
In this regard, i have two questions:
1) what is the status of a document which "evokes" the namespace
"http://www.w3.org/TR/xhtml1/DTD/strict.dtd"
but contains no document type declaration? Is it XHTML conformant but of
indeterminate XML validity?
2) what is the status of a document which "evokes" this namespace, but
contains a document type declaration with respective element declarations
which differ from those in the above mentioned dtd? I suspect that it is XHTML
non-conformant but of determinate XML validity
ie. the evocation of the namespace is, in itself, immaterial.
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