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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 |
Complex Types | FTMultiLang, STMultiLang, StringMultiLang
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 |
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>