Re: [xml-dev] what's missing in XML? What's coming?

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

On 04/01/2012 10:25, Henry S. Thompson wrote:
> Unless you mean "without DOCTYPEs", isn't this exactly what the
> current HTML 5 spec [1] does?  That is, it effectively provides a
> catalog which conformant user agents are required to use which maps a
> range of PUBLIC identifiers onto a data: URI which contains all the
> HTML and MATHML entity declarations.
>
> ht

It does do that, but bizarrely the list of PUBLIC identifiers for which
this data: URI is used all resolve (if used with any normal catalog) to
legacy DTD which define _different_ definitions for the entities, and
declare a different set of elements.

Thus it isn't at all easy to have a file using entities that doesn't
suffer data corruption or become non well formed if used with both a
normal XML toolchain and a browser XML parser. It is not possible at all
without abusing these existing FPI to have a file using entity
references that is dtd-valid and uses html5 features such as <canvas> .

This is the subject of:

https://www.w3.org/Bugs/Public/show_bug.cgi?id=13409

David

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