Le lundi 31 janvier 2005 � 19:09 +0100, Erik Bruchez a �crit :
> Eric van der Vlist wrote:
> > BTW, this approach (full, simplified, simplification) is something
> > that might help you describing XPL. It lets you concentrate on
> > defining the semantics of the simplified set and easily add features
> > through this simplification process without changing the semantics
> > of the simplified set. I find that very powerful and quite generic.
>
> Full / simplified is just a syntax aspect, right?
> While simplification
> is more related to how to process the language.
Yes, these are two different things:
* The two syntaxes (XML and compact) are two different syntaxes in
which you can express a schema (you choose the one you like
better and there are converters that convert to and from these
syntax without any information loss).
* The simplification is the description of a process that removes
all the syntactical sugar from a full schema to extract its
meaning (as far as validation only is concerned) expressed with
a minimum of basic construct blocks. The result of the
simplification is equivalent to the full schema in that it
validates exactly the same set of instance document but a lot of
information is lost during the simplification process
(annotations but also everything that deals with the modularity
of the schema).
Implementations do not have to actually perform the simplification as
described in the spec but the result of their validations must be the
same than if they had performed it.
> At any rate I am adding an RFE to suggest opening up the schema of the
> PFC to foreign attributes and elements. That's still a subject of
> discussion of course ;-)
>
> http://sourceforge.net/tracker/index.php?func=detail&aid=1113344&group_id=116683&atid=675663
Thanks!
Eric
--
Weblog:
http://eric.van-der-vlist.com/blog?t=category&a=English
------------------------------------------------------------------------
Eric van der Vlist http://xmlfr.org http://dyomedea.com
(ISO) RELAX NG ISBN:0-596-00421-4 http://oreilly.com/catalog/relax
(W3C) XML Schema ISBN:0-596-00252-1 http://oreilly.com/catalog/xmlschema
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