[dsdl-comment] Re: Schemas for the combination of atom and its extensions

MURATA Makoto wrote:

> Which do you think is easier to understand?

I think that NVDL version is easier to understand because it is
sufficient to know vocabularies itself there is no need to know anything
about RELAX NG and internal structure of individual schemas.

Moreover for more complex combinations it is real pain to do it in RELAX
NG only as name classes are not patterns and you have to explicitly
exclude all used namespaces from definition of extension elements like:

simpleExtensionElement =
        element * - (atom:* | thr:* | open:* | fh:*) { text }

Jirka

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