- From: Eric van der Vlist <vdv@dyomedea.com>
- Date: Wed, 11 Oct 2000 13:28:50 +0200
- To: Miloslav Nic <nicmila@idoox.com>
- CC: "xmlschema-dev@w3.org" <xmlschema-dev@w3.org>
Miloslav Nic wrote: > > I am an idiot :((((( No, you're not ! > I have meant xsd:all and therefore: > > <xsd:element name="XXX"> > <xsd:complexType> > <xsd:all> > <xsd:element name="aaa" maxOccurs="2"/> > <xsd:element name="bbb" maxOccurs="2"/> > </xsd:all> > </xsd:complexType> > </xsd:element> > > Is now: > > <XXX> > <aaa/> > <bbb/> > <aaa/> > <bbb/> > </XXX> > > valid :) Even if it validates with XSV (I have also tested it), according to the spec, it shouldn't ! The primer [1] is very formal about the fact that maxOccurs cannot be greater than 1 for elements appearing within "all" particles... [1] http://www.w3.org/TR/xmlschema-0/#ref18 > Eric van der Vlist wrote: > > > > Hi Nic, > > > > xsd:any is a very specific beast: > > > > "In general, an any element specifies that any well-formed XML is > > permissible in a type's content model" > > > > and it doesn't accept xsd:element as its content. > > > > My understanding is that you have to use a combinaison of the 3 > > following elements to try to achieve what you want here: > > > > xsd:sequence (imposing an order for your elements). > > xsd:choice (one of the items only) > > xsd:all (several restrictions such as maxOccurs for each of the elements > > can only be <= 1). > > > > I may have missed something (I hope so ;) but I don't see how you can > > achieve declaring (at least in an extensible way) that both aaa and bbb > > have to be present between 0 to 2 times in any order with the current > > draft ! > > > > The only way I can think of is a xsd:choice between a xsd:sequence for > > each combinaison. > > > > Hope this helps. > > > > Eric > > > > Miloslav Nic wrote: > > > > > > In my understanding, if I use: > > > > > > <xsd:element name="XXX"> > > > <xsd:complexType> > > > <xsd:any> > > > <xsd:element name="aaa" maxOccurs="2"/> > > > <xsd:element name="bbb" maxOccurs="2"/> > > > </xsd:any> > > > </xsd:complexType> > > > </xsd:element> > > > > > > Then this xml file vould be schema valid: > > > > > > <XXX> > > > <aaa/> > > > <bbb/> > > > <aaa/> > > > <bbb/> > > > </XXX> > > > > > > Am I correct? > > > > > > -- > > > ****************************************** > > > <firstName> Miloslav </firstName> > > > <surname> Nic </surname> > > > > > > <mail> nicmila@idoox.com </mail> > > > <support> http://www.zvon.org </support> > > > <zvonMailingList> > > > http://www.zvon.org/index.php?nav_id=4 > > > </zvonMailingList> > > > > -- > > ------------------------------------------------------------------------ > > Eric van der Vlist Dyomedea http://dyomedea.com > > http://xmlfr.org http://4xt.org http://ducotede.com > > ------------------------------------------------------------------------ > > -- > ****************************************** > <firstName> Miloslav </firstName> > <surname> Nic </surname> > > <mail> nicmila@idoox.com </mail> > <support> http://www.zvon.org </support> > <zvonMailingList> > http://www.zvon.org/index.php?nav_id=4 > </zvonMailingList> -- ------------------------------------------------------------------------ Eric van der Vlist Dyomedea http://dyomedea.com http://xmlfr.org http://4xt.org http://ducotede.com ------------------------------------------------------------------------
Received on Wednesday, 11 October 2000 07:36:52 UTC