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MyASPN >> Mail Archive >> xml-dev
xml-dev
Re: namespace prefixes within attribute values
by Richard Tobin other posts by this author
Mar 10 2000 8:42AM messages near this date
namespace prefixes within attribute values | Re: namespace prefixes within attribute values
> other things, it isn't clear that applications - which should be processing
> these attribute values - will ever get the prefix information, given some
> strongly held beliefs that prefixes are throwaway info for the parser only.

Applications that need to interpret namespace prefixes in attributes
(or text data) will of course have to use a parser that provides the
necessary information.

And it to be expected that many parsers will provide it, since the
binding of prefixes to URIs is a (peripheral) property of element
information items in the infoset (http://www.w3.org/TR/xml-infoset).

>  At the same time, the Namespaces spec doesn't tell parsers that they
> should examine attribute values for namespace prefixes.  (There's no
> warning about using colons within attribute values in XML 1.0, either.)

And that's how it should be.  That an attribute value is interpreted
as having a namespace prefix is an application-level decision, just
like whether an attribute is interpreted as a URI (which similarly
needs base URI information, again an infoset property of elements).

-- Richard
-- 
Spam filter: to mail me from a .com/.net site, put my surname in the headers.

"The Internet is really just a series of bottlenecks joined by high
speed networks." - Sam Wilson

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Thread:
Simon St.Laurent
Richard Tobin
Eve L. Maler

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