[xquery-talk] Default namespace best practices?
Per Bothner
per at bothner.com
Tue Mar 8 13:36:52 PST 2005
Michael Kay wrote:
> (a) if you define a default element namespace, then you have no simple way
> of referring to (or constructing) elements in the non-namespace.
It might be useful to be able to declare a prefix for an empty namespace:
declare namespace empty = "";
declare default element namespace xhtml = "....";
<foo/> (: in xhtml namespace :),
<empty:bar/> (: in no namespace :)
Unfortuntely, the latest draft says:
If the URILiteral part of a namespace declaration is a zero-length string,
any existing namespace binding for the given prefix is removed from the
statically known namespaces.
This seems a less useful feature.
Alternatively, one could extend the syntax of QName to make the Prefix optional:
QName ::= (Prefix? ':')? LocalPart
A missing prefix is in no namespace:
<:bar/> (: in no namespace :)
--
--Per Bothner
per at bothner.com http://per.bothner.com/
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