Re: different versions of xmlns:foo are never usable
In your stylesheet you can declare xmlns:food10="http://who/knows/Food/1.0" xmlns:food11="http://who/knows/Food/1.1" and then match on food10:recipe or food11:recipe as required, or food10:recipe | food11:recipe if you require both. > If I want version 2.0 of the 'food' namespace to accept > everything 1.0 did, but also add stuff like <food:wine-suggestions/>, is > it possible? Yes but generally speaking it's a _really_ bad idea to change namespace when you version a language. Changing the namespace means changing the name of _every_ element in the language, so no program accepting the ist language will acept any of the new and vice versa (by default, obviously it can be written to accept any two languages). note xhtml 1 and 1.1 share the smae namespace (xhtml 2.0 bizarely has a new one) mathml 1, 1.1 and 2 all share a namespace xslt 1 and 2 share a namespace etc. Despite the fact that doing it causes problems people do it anyway 9and even argue it's a good idea:-) XPath 2 will add *:recepe as a possibility to mean local-name recipe in any namespace, or in xpath 1 you can use *[local-name()='recipe'] or if you want to make it a bit tighter *[local-name()='recipe' and starts-with(namespace-url(),'http://who/knows/Food')] If it is your own input language, consider keeping the namespace the same and having a version="2" mandatory top level attribute. for some different views on the theme: http://www.w3.org/XML/2005/xsd-versioning-use-cases/ David ________________________________________________________________________ This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________
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