Hi, On Wed, 2005-11-30 at 16:42 +0100, Dominique Quatravaux wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Dear libxml hackers, > > I am by no stretch enlightened in XML schemas, but I'm seeing a > behavior that very much looks like a bug in libxml2's w3c-schema > validator. I'm using version 2.6.22 on Debian sarge. > > I believe the two XML files below should both validate, but only > ok.xml actually does. Rationale: "free" attribute declarations (here > the id attribute) are available to all elements, or so I thought. > > == ok.xml == > > <foo xmlns="http://example.com/xsd/ns";><bar id="abc"/></foo>
This instance is valid, because <foo> has no attributes - as declared - and the type of <bar> defaults to xs:anyType, which accepts any content and any attributes 'laxly'; 'laxly' means that if an element or attribute declaration is found for a child element or an attribute node respectively, then those nodes are validated against those declarations, if no declarations are found, the validation is simply skipped. > > == notok.xml == > > <foo xmlns="http://example.com/xsd/ns"; id="abc"><bar /></foo> This instance is not valid, because the complexType you declared for the <foo> element does not declare any attribute, thus must not have any attributes. > > == schema.xml == > > <?xml version="1.0"?> > <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"; > targetNamespace="http://example.com/xsd/ns"; > elementFormDefault="qualified" > attributeFormDefault="qualified"> > <!-- "floating" attribute --> > <xsd:attribute name="id" type="xsd:ID"/> > <!-- Bogus elements --> > <xsd:element name="foo"> > <xsd:complexType> Note that this complexType has no attribute declared. > <xsd:sequence> > <xsd:element minOccurs="0" maxOccurs="1" name="bar" /> Note that the type of the local element declaration "bar" defaults to xs:anyType. You'll find the definition for xs:anyType at: http://www.w3.org/TR/xmlschema-1/#d0e9252 > </xsd:sequence> > </xsd:complexType> > </xsd:element> > </xsd:schema> The behaviour of the schema processor looks correct. Regards, Kasimier _______________________________________________ xml mailing list, project page http://xmlsoft.org/ [email protected] http://mail.gnome.org/mailman/listinfo/xml
