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<?xml version='1.0'?> |
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<?xml-stylesheet href="../2008/09/xsd.xsl" type="text/xsl"?> |
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<xs:schema targetNamespace="http://www.w3.org/XML/1998/namespace" |
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xmlns:xs="http://www.w3.org/2001/XMLSchema" |
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xmlns ="http://www.w3.org/1999/xhtml" |
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xml:lang="en"> |
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<xs:annotation> |
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<xs:documentation> |
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<div> |
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<h1>About the XML namespace</h1> |
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<div class="bodytext"> |
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<p> |
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This schema document describes the XML namespace, in a form |
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suitable for import by other schema documents. |
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</p> |
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<p> |
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See <a href="http://www.w3.org/XML/1998/namespace.html"> |
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http://www.w3.org/XML/1998/namespace.html</a> and |
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<a href="http://www.w3.org/TR/REC-xml"> |
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http://www.w3.org/TR/REC-xml</a> for information |
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about this namespace. |
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</p> |
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<p> |
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Note that local names in this namespace are intended to be |
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defined only by the World Wide Web Consortium or its subgroups. |
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The names currently defined in this namespace are listed below. |
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They should not be used with conflicting semantics by any Working |
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Group, specification, or document instance. |
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</p> |
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<p> |
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See further below in this document for more information about <a |
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href="#usage">how to refer to this schema document from your own |
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XSD schema documents</a> and about <a href="#nsversioning">the |
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namespace-versioning policy governing this schema document</a>. |
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</p> |
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</div> |
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</div> |
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</xs:documentation> |
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</xs:annotation> |
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<xs:attribute name="lang"> |
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<xs:annotation> |
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<xs:documentation> |
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<div> |
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<h3>lang (as an attribute name)</h3> |
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<p> |
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denotes an attribute whose value |
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is a language code for the natural language of the content of |
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any element; its value is inherited. This name is reserved |
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by virtue of its definition in the XML specification.</p> |
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</div> |
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<div> |
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<h4>Notes</h4> |
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<p> |
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Attempting to install the relevant ISO 2- and 3-letter |
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codes as the enumerated possible values is probably never |
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going to be a realistic possibility. |
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</p> |
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<p> |
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See BCP 47 at <a href="http://www.rfc-editor.org/rfc/bcp/bcp47.txt"> |
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http://www.rfc-editor.org/rfc/bcp/bcp47.txt</a> |
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and the IANA language subtag registry at |
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<a href="http://www.iana.org/assignments/language-subtag-registry"> |
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http://www.iana.org/assignments/language-subtag-registry</a> |
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for further information. |
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</p> |
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<p> |
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The union allows for the 'un-declaration' of xml:lang with |
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the empty string. |
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</p> |
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</div> |
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</xs:documentation> |
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</xs:annotation> |
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<xs:simpleType> |
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<xs:union memberTypes="xs:language"> |
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<xs:simpleType> |
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<xs:restriction base="xs:string"> |
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<xs:enumeration value=""/> |
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</xs:restriction> |
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</xs:simpleType> |
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</xs:union> |
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</xs:simpleType> |
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</xs:attribute> |
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<xs:attribute name="space"> |
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<xs:annotation> |
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<xs:documentation> |
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<div> |
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<h3>space (as an attribute name)</h3> |
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<p> |
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denotes an attribute whose |
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value is a keyword indicating what whitespace processing |
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discipline is intended for the content of the element; its |
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value is inherited. This name is reserved by virtue of its |
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definition in the XML specification.</p> |
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</div> |
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</xs:documentation> |
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</xs:annotation> |
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<xs:simpleType> |
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<xs:restriction base="xs:NCName"> |
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<xs:enumeration value="default"/> |
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<xs:enumeration value="preserve"/> |
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</xs:restriction> |
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</xs:simpleType> |
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</xs:attribute> |
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<xs:attribute name="base" type="xs:anyURI"> <xs:annotation> |
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<xs:documentation> |
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<div> |
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<h3>base (as an attribute name)</h3> |
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<p> |
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denotes an attribute whose value |
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provides a URI to be used as the base for interpreting any |
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relative URIs in the scope of the element on which it |
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appears; its value is inherited. This name is reserved |
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by virtue of its definition in the XML Base specification.</p> |
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<p> |
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See <a |
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href="http://www.w3.org/TR/xmlbase/">http://www.w3.org/TR/xmlbase/</a> |
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for information about this attribute. |
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</p> |
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</div> |
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</xs:documentation> |
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</xs:annotation> |
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</xs:attribute> |
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<xs:attribute name="id" type="xs:ID"> |
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<xs:annotation> |
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<xs:documentation> |
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<div> |
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<h3>id (as an attribute name)</h3> |
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<p> |
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denotes an attribute whose value |
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should be interpreted as if declared to be of type ID. |
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This name is reserved by virtue of its definition in the |
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xml:id specification.</p> |
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<p> |
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See <a |
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href="http://www.w3.org/TR/xml-id/">http://www.w3.org/TR/xml-id/</a> |
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for information about this attribute. |
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</p> |
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</div> |
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</xs:documentation> |
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</xs:annotation> |
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</xs:attribute> |
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<xs:attributeGroup name="specialAttrs"> |
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<xs:attribute ref="xml:base"/> |
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<xs:attribute ref="xml:lang"/> |
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<xs:attribute ref="xml:space"/> |
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<xs:attribute ref="xml:id"/> |
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</xs:attributeGroup> |
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<xs:annotation> |
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<xs:documentation> |
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<div> |
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<h3>Father (in any context at all)</h3> |
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<div class="bodytext"> |
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<p> |
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denotes Jon Bosak, the chair of |
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the original XML Working Group. This name is reserved by |
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the following decision of the W3C XML Plenary and |
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XML Coordination groups: |
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</p> |
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<blockquote> |
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<p> |
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In appreciation for his vision, leadership and |
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dedication the W3C XML Plenary on this 10th day of |
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February, 2000, reserves for Jon Bosak in perpetuity |
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the XML name "xml:Father". |
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</p> |
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</blockquote> |
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</div> |
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</div> |
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</xs:documentation> |
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</xs:annotation> |
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<xs:annotation> |
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<xs:documentation> |
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<div xml:id="usage" id="usage"> |
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<h2><a name="usage">About this schema document</a></h2> |
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<div class="bodytext"> |
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<p> |
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This schema defines attributes and an attribute group suitable |
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for use by schemas wishing to allow <code>xml:base</code>, |
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<code>xml:lang</code>, <code>xml:space</code> or |
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<code>xml:id</code> attributes on elements they define. |
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</p> |
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<p> |
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To enable this, such a schema must import this schema for |
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the XML namespace, e.g. as follows: |
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</p> |
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<pre> |
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<schema . . .> |
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. . . |
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<import namespace="http://www.w3.org/XML/1998/namespace" |
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schemaLocation="http://www.w3.org/2001/xml.xsd"/> |
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</pre> |
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<p> |
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or |
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</p> |
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<pre> |
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<import namespace="http://www.w3.org/XML/1998/namespace" |
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schemaLocation="http://www.w3.org/2009/01/xml.xsd"/> |
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</pre> |
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<p> |
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Subsequently, qualified reference to any of the attributes or the |
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group defined below will have the desired effect, e.g. |
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</p> |
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<pre> |
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<type . . .> |
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. . . |
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<attributeGroup ref="xml:specialAttrs"/> |
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</pre> |
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<p> |
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will define a type which will schema-validate an instance element |
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with any of those attributes. |
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</p> |
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</div> |
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</div> |
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</xs:documentation> |
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</xs:annotation> |
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<xs:annotation> |
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<xs:documentation> |
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<div id="nsversioning" xml:id="nsversioning"> |
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<h2><a name="nsversioning">Versioning policy for this schema document</a></h2> |
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<div class="bodytext"> |
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<p> |
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In keeping with the XML Schema WG's standard versioning |
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policy, this schema document will persist at |
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<a href="http://www.w3.org/2009/01/xml.xsd"> |
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http://www.w3.org/2009/01/xml.xsd</a>. |
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</p> |
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<p> |
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At the date of issue it can also be found at |
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<a href="http://www.w3.org/2001/xml.xsd"> |
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http://www.w3.org/2001/xml.xsd</a>. |
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</p> |
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<p> |
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The schema document at that URI may however change in the future, |
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in order to remain compatible with the latest version of XML |
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Schema itself, or with the XML namespace itself. In other words, |
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if the XML Schema or XML namespaces change, the version of this |
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document at <a href="http://www.w3.org/2001/xml.xsd"> |
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http://www.w3.org/2001/xml.xsd |
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</a> |
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will change accordingly; the version at |
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<a href="http://www.w3.org/2009/01/xml.xsd"> |
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http://www.w3.org/2009/01/xml.xsd |
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</a> |
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will not change. |
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</p> |
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<p> |
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Previous dated (and unchanging) versions of this schema |
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document are at: |
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</p> |
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<ul> |
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<li><a href="http://www.w3.org/2009/01/xml.xsd"> |
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http://www.w3.org/2009/01/xml.xsd</a></li> |
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<li><a href="http://www.w3.org/2007/08/xml.xsd"> |
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http://www.w3.org/2007/08/xml.xsd</a></li> |
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<li><a href="http://www.w3.org/2004/10/xml.xsd"> |
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http://www.w3.org/2004/10/xml.xsd</a></li> |
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<li><a href="http://www.w3.org/2001/03/xml.xsd"> |
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http://www.w3.org/2001/03/xml.xsd</a></li> |
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</ul> |
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</div> |
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</div> |
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</xs:documentation> |
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</xs:annotation> |
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</xs:schema> |
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