Re: XML-aware programming language?
People *are* indeed always using the same prefixes (xsl, xsd, xsi...) and declaring them in the root... some people are but much XML isn't written by people. If you generate a mixed namespace document with XSLT (and probably many other systems) the natural place that the namespace declarations appear is on each use not at the top of the document, as XSLT is designed to allow the result document to be linearised as it is generated, so there is no way of telling it to back up and add a namespace declaration at the top if you discover half way through generating your XHTML document that you need to add some svg or mathml or something. It was of course concerns such as this that led to the namespace rec allowing declarations mid document in the first place. The annoying exceptions can very clearly be marked by any implementation as not supported, and it is quite easy to turn an unsupported XML document into a supported one (changing, moving prefixes). Easy with a text editor, but is it easy with "XML programming languages" such as Xquery or XSLT? 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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