Re: [xml-dev] Towards XML 2.0

[David Carlisle <davidc@nag.co.uk>]

On 06/12/2010 11:37, Michael Kay wrote:
>  >I don't know of any language where comments have to be syntactically
> correct, it's essentially equivalent to saying that there are no comments.
>
> In XSD, xs:annotation has to be well-formed.

True, so you often see schema with xml <!-- comments instead (or as well)

random example

http://www.w3.org/TR/2002/WD-SVG11-20020108/SVG.xsd

which has both comments and annotations.

structured annotation like xs:annotation or mathml's annotation-xml 
seems to be fundamentally different thing from comments.


annotation is adding structured content to the document
commenting is removing a span of text from the document as seen by the 
parser.

There are of course overlapping use cases and grey areas, but....

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. 
________________________________________________________________________