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Annotations
Attributes
Diagrams
Facets
Properties
Source
Used by
Imported schema xml.xsd
Namespace http://www.w3.org/XML/1998/namespace
Annotations
See http://www.w3.org/XML/1998/namespace.html and http://www.w3.org/TR/REC-xml for information about this namespace. This schema document describes the XML namespace, in a form suitable for import by other schema documents. Note that local names in this namespace are intended to be defined only by the World Wide Web Consortium or its subgroups. The following names are currently defined in this namespace and should not be used with conflicting semantics by any Working Group, specification, or document instance: base (as an attribute name): denotes an attribute whose value provides a URI to be used as the base for interpreting any relative URIs in the scope of the element on which it appears; its value is inherited. This name is reserved by virtue of its definition in the XML Base specification. id (as an attribute name): denotes an attribute whose value should be interpreted as if declared to be of type ID. This name is reserved by virtue of its definition in the xml:id specification. lang (as an attribute name): denotes an attribute whose value is a language code for the natural language of the content of any element; its value is inherited. This name is reserved by virtue of its definition in the XML specification. space (as an attribute name): denotes an attribute whose value is a keyword indicating what whitespace processing discipline is intended for the content of the element; its value is inherited. This name is reserved by virtue of its definition in the XML specification. Father (in any context at all): denotes Jon Bosak, the chair of the original XML Working Group. This name is reserved by the following decision of the W3C XML Plenary and XML Coordination groups: In appreciation for his vision, leadership and dedication the W3C XML Plenary on this 10th day of February, 2000 reserves for Jon Bosak in perpetuity the XML name xml:Father
This schema defines attributes and an attribute group suitable for use by schemas wishing to allow xml:base, xml:lang, xml:space or xml:id attributes on elements they define. To enable this, such a schema must import this schema for the XML namespace, e.g. as follows: <schema . . .> . . . <import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/xml.xsd"/> Subsequently, qualified reference to any of the attributes or the group defined below will have the desired effect, e.g. <type . . .> . . . <attributeGroup ref="xml:specialAttrs"/> will define a type which will schema-validate an instance element with any of those attributes
In keeping with the XML Schema WG's standard versioning policy, this schema document will persist at http://www.w3.org/2007/08/xml.xsd. At the date of issue it can also be found at http://www.w3.org/2001/xml.xsd. The schema document at that URI may however change in the future, in order to remain compatible with the latest version of XML Schema itself, or with the XML namespace itself. In other words, if the XML Schema or XML namespaces change, the version of this document at http://www.w3.org/2001/xml.xsd will change accordingly; the version at http://www.w3.org/2007/08/xml.xsd will not change.
Properties
attribute form default unqualified
element form default unqualified
Attribute @xml:lang
Namespace http://www.w3.org/XML/1998/namespace
Annotations
Attempting to install the relevant ISO 2- and 3-letter codes as the enumerated possible values is probably never going to be a realistic possibility. See RFC 3066 at http://www.ietf.org/rfc/rfc3066.txt and the IANA registry at http://www.iana.org/assignments/lang-tag-apps.htm for further information. The union allows for the 'un-declaration' of xml:lang with the empty string.
Type union of(xs:language, restriction of xs:string)
Properties
content simple
Used by
Elements u, wor
Attribute Group xml:specialAttrs
Source
 
<xs:attribute name="lang">
  <xs:annotation>
    <xs:documentation>Attempting to install the relevant ISO 2- and 3-letter codes as the enumerated possible values is probably never going to be a realistic possibility. See RFC 3066 at http://www.ietf.org/rfc/rfc3066.txt and the IANA registry at http://www.iana.org/assignments/lang-tag-apps.htm for further information. The union allows for the 'un-declaration' of xml:lang with the empty string.</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:union memberTypes="xs:language">
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value=""/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
</xs:attribute>
Attribute @xml:space
Namespace http://www.w3.org/XML/1998/namespace
Type restriction of xs:NCName
Properties
content simple
Facets
enumeration default
enumeration preserve
Used by
Attribute Group xml:specialAttrs
Source
 
<xs:attribute name="space">
  <xs:simpleType>
    <xs:restriction base="xs:NCName">
      <xs:enumeration value="default"/>
      <xs:enumeration value="preserve"/>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>
Attribute @xml:base
Namespace http://www.w3.org/XML/1998/namespace
Annotations
See http://www.w3.org/TR/xmlbase/ for information about this attribute.
Type xs:anyURI
Properties
content simple
Used by
Attribute Group xml:specialAttrs
Source
 
<xs:attribute name="base" type="xs:anyURI">
  <xs:annotation>
    <xs:documentation>See http://www.w3.org/TR/xmlbase/ for information about this attribute.</xs:documentation>
  </xs:annotation>
</xs:attribute>
Attribute @xml:id
Namespace http://www.w3.org/XML/1998/namespace
Annotations
See http://www.w3.org/TR/xml-id/ for information about this attribute.
Type xs:ID
Properties
content simple
Used by
Attribute Group xml:specialAttrs
Source
 
<xs:attribute name="id" type="xs:ID">
  <xs:annotation>
    <xs:documentation>See http://www.w3.org/TR/xml-id/ for information about this attribute.</xs:documentation>
  </xs:annotation>
</xs:attribute>
Attribute Group xml:specialAttrs
Namespace http://www.w3.org/XML/1998/namespace
Diagram
Diagram xml_xsd.tmp#base xml_xsd.tmp#lang xml_xsd.tmp#space xml_xsd.tmp#id
Attributes
QName Type Use Annotation
xml:base xs:anyURI optional
See http://www.w3.org/TR/xmlbase/ for information about this attribute.
xml:id xs:ID optional
See http://www.w3.org/TR/xml-id/ for information about this attribute.
xml:lang union of(xs:language, restriction of xs:string) optional
Attempting to install the relevant ISO 2- and 3-letter codes as the enumerated possible values is probably never going to be a realistic possibility. See RFC 3066 at http://www.ietf.org/rfc/rfc3066.txt and the IANA registry at http://www.iana.org/assignments/lang-tag-apps.htm for further information. The union allows for the 'un-declaration' of xml:lang with the empty string.
xml:space restriction of xs:NCName optional
Source
 
<xs:attributeGroup name="specialAttrs">
  <xs:attribute ref="xml:base"/>
  <xs:attribute ref="xml:lang"/>
  <xs:attribute ref="xml:space"/>
  <xs:attribute ref="xml:id"/>
</xs:attributeGroup>
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