Re: Multiple instances of an attribute Re: TowardsXM
On 10/12/2010 09:46, Stephen Green wrote: > I was also thinking maybe some xml:xxx features added to XML by the XML WG > (rather than the XML Schema WG) might expand attribute functionality in a > way which doesn't require a schema why is a schema needed? What is the use case for being able to parse xml+json (say) with no prior knowledge of what vocabulary of the xml file is using, but being able to detect that particular attributes are json? To give counter example: an xsl file has many structured attributes (typically xpath rather than json but the issues are similar) select="(1,2,3,4,5)" for example. That xpath has many similarities to json, involving sequences and integer literals. there is no schema type for xpath, an xslt processor just has advance knowledge that the select attribute contains xpath and parses it accordingly. A generic XML processor doesn't know that this is xpath and just treats the entire attribute as an opaque string, but that's OK it wouldn't help if it did know it was xpath, it wouldn't be able to evaluate it anyway. So, what are the circumstances that xml:json="[1,2,3,4,5]" would help over a particular vocabulary having data-json="[1,2,3,4,5]" ? David ________________________________________________________________________ The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is: Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. ________________________________________________________________________
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