- From: Martin J. Duerst <duerst@w3.org>
- Date: Wed, 11 Oct 2000 21:09:22 +0900
- To: "Martin Gudgin" <marting@develop.com>, "Schema Comments" <www-xml-schema-comments@w3.org>
- Cc: "Dan Rupe" <Dan_Rupe@go.com>
Hello Martin, If I interpret the mail below correctly, I have to revise my estimate on implementation effort in XSV to 0 minutes :-). Regards, Martin. >Resent-Date: Wed, 11 Oct 2000 07:37:02 -0400 (EDT) >Date: Wed, 11 Oct 2000 13:28:50 +0200 >From: Eric van der Vlist <vdv@dyomedea.com> >X-Mailer: Mozilla 4.73 [en] (Win98; U) >X-Accept-Language: en >To: Miloslav Nic <nicmila@idoox.com> >CC: "xmlschema-dev@w3.org" <xmlschema-dev@w3.org> >Subject: Re: xsd:all and xsd:element with max(min)occurs (was: xsd:any ...) >Resent-From: xmlschema-dev@w3.org >X-Mailing-List: <xmlschema-dev@w3.org> archive/latest/289 >X-Loop: xmlschema-dev@w3.org >Sender: xmlschema-dev-request@w3.org >Resent-Sender: xmlschema-dev-request@w3.org >List-Id: <xmlschema-dev.w3.org> >List-Help: <http://www.w3.org/Mail/> >List-Unsubscribe: <mailto:xmlschema-dev-request@w3.org?subject=unsubscribe> > >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 08:20:41 UTC