Re: block-based parsing?

* Dominique Hazaël-Massieux wrote:
>Namely, such a rule would require a parser to skip the entire block
>contained into the @mustUnderstand scope if there is at least one rule
>it can't parse or containing a property it doesn't know.

This has been discussed quite a few times on this list (keywords would
be "co-dependent properties", "@combine", along with the usual @version
and @user-agent suggestions, etc); there is some consensus that the co-
dependent properties problem needs a solution; the main problem seems
to be lack of a good solution.
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