Is <any> really enough for <any><body>?
> <warning> > <topic> > I'm can see need for more powerful <any> > (http://www.w3.org/TR/xmlschema-1/#declare-openness). > My problem is probably repeated few times on xml-dev or > http://lists.w3.org/Archives/Public/www-xml-schema-comments/, and > since I don't know where to discuss about schemas, I'd like to hear > about better place for this discussion. > </topic> > > <discussion level='beginner'> > Don't kill me. I started with schemas on > Saturday and I bumped into problem with my first exercise schema (so I > concluded > there have to be real need for this, not just something from my > imagination). > </discussion> > </warning> > > How to express some constraints on <any> element? As I see it, > specification doesn't provide any ways for this. (Correct me, > please!:) > > What is the right way to express such simple thing as "any element > with child X". > > I'd like to reform rule 1 at 3.5 Wildcards (and rest accordingly): > o Any well-formed XML element item with specified type constraint: > any tag, any namespace, any attributes, any content, as long > as it's well-formed and satisfy specified schema's type constraint. > > I can come up with different ways to express same thing: > <any type='Type'/> > <element type='Type'/> > <element name='' type='Type'/> > > But since regular expressions are now introduced, I'd love to use > them: > > <element name='*' type='Type'/> > <element name='*' ref="VaryingName1"/> > > Allowing references in the consturct is very important! > > Maybe star wildcard is just enough, but I can make some real use for > real patterns too: > > <element name='expect_varying_named_binary_operators'> > <element name='(and|or|own.+BinaryOperator)' > type='BinaryOperator'/> > </element> > > <type name='BinaryOperator'> > <element name='*' type='Operand'/> > <element name='*' type='Operand'/> > </type> > > ======== > document_written_by_some_completely_different_user.xml: > ======== > <expect_varying_named_binary_operators> > <own_ultimately_weird_BinaryOperator> > <op1/> > <op2/> > </own_ultimately_weird_BinaryOperator> > </expect_varying_named_binary_operators> > > ---------------- > In the end I thought a little bit about usability and thought it > might be better idea to set varying names to different attribute than > name on <element>-element. > > <element match='*'> like in xsl might be best solution. > > Any ideas, comments? > > - department of uncensored ideas > xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ or CD-ROM/ISBN 981-02-3594-1 Please note: New list subscriptions now closed in preparation for transfer to OASIS.
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