- From: Pete Cordell <petexmldev@tech-know-ware.com>
- Date: Sun, 27 Nov 2005 11:14:39 -0000
- To: "Jon Berndt" <jsb@hal-pc.org>, <xmlschema-dev@w3.org>
Oops, I think I missed a bit. I think you have to do this in two stages: 1. Create the positive double by restricting double. 2. Extending the new positive double simpleType into a simpleContent. e.g. <xs:simpleType name="positiveDouble"> <xs:restriction base="xs:double"> <xs:minExclusive value="0"/> </xs:restriction> </xs:simpleType> <xs:element name="wingarea"> <xs:complexType> <xs:simpleContent> <xs:extension base="positiveDouble"> <xs:attribute name="unit" use="optional" default="FT2"> <xs:simpleType> <xs:restriction base="xs:string"> <xs:enumeration value="M2"/> <xs:enumeration value="FT2"/> </xs:restriction> </xs:simpleType> </xs:attribute> </xs:extension> </xs:simpleContent> </xs:complexType> </xs:element> HTH, Pete. -- ============================================= Pete Cordell for XML to C++ data binding visit http://www.tech-know-ware.com/lmx (or http://www.xml2cpp.com) ============================================= ----- Original Message ----- From: "Pete Cordell" <petexmldev@tech-know-ware.com> To: "Jon Berndt" <jsb@hal-pc.org>; <xmlschema-dev@w3.org> Sent: Sunday, November 27, 2005 10:05 AM Subject: Re: Attributes, simpleContent, etc. > > Hi Jon, > > Based on a quick look, try changing the line: > > <xs:restriction base="xs:double"> > > and its corresponding </xs:restriction> to: > > <xs:extension base="xs:double"> > > "simpleType" explanation[:-)]: you're extending (rather than restricting) > the double simpleType into simpleContent. > > HTH, > > Pete. > -- > ============================================= > Pete Cordell > for XML to C++ data binding visit > http://www.tech-know-ware.com/lmx > (or http://www.xml2cpp.com) > ============================================= > > ----- Original Message ----- > From: "Jon Berndt" <jsb@hal-pc.org> > To: <xmlschema-dev@w3.org> > Sent: Friday, November 25, 2005 5:23 PM > Subject: Attributes, simpleContent, etc. > > >> >> I am just beginning to work with schemas. I'm having a little trouble >> authoring a schema. >> (I'm using the oXygenXML editor, if that matters). If there is a better >> place for me to >> post this, please let me know. >> >> I have an element in my XML document that looks as follows: >> >> <wingarea unit="FT2"> 174.0 </wingarea> >> >> The element is required, the content must be greater than 0, and the unit >> can be one of >> FT2 or M2 (the unit is optional, with FT2 being the default). I've read >> up >> on this, but so >> far I've been unsuccessful at making the correct schema, according to the >> oXygen XML error >> messages I get. >> >> Here's what I've got so far: >> >> <xs:element name="wingarea"> >> <xs:complexType> >> <xs:simpleContent> >> <xs:restriction base="xs:double"> >> <xs:minExclusive value="0"/> >> <xs:attribute name="unit" use="optional" default="FT2"> >> <xs:simpleType> >> <xs:restriction base="xs:string"> >> <xs:enumeration value="M2"/> >> <xs:enumeration value="FT2"/> >> </xs:restriction> >> </xs:simpleType> >> </xs:attribute> >> </xs:restriction> >> </xs:simpleContent> >> </xs:complexType> >> </xs:element> >> >> I get an error message when I try and validate a document using this >> schema: >> >> --- start error message --- >> >> "Complex Type Definition Representation Error for type >> '#AnonType_wingarea'. When >> <simpleContent> is used, the base type must be a complexType whose >> content >> type is simple, >> or, only if restriction is specified, a complex type with mixed content >> and emptiable >> particle, or, only if extension is specified, a simple type. 'double' >> satisfies none of >> these conditions. URL: http://www.w3.org/TR/xmlschema-1/#src-ct" >> >> --- end error message --- >> >> I'd be grateful if someone can give me a "simpleType" of explanation of >> where I've gone >> wrong! Thanks. >> >> Jon Berndt >> League City, TX
Received on Sunday, 27 November 2005 11:21:38 UTC