<?xml version='1.0'?> | |
<?xml-stylesheet href="../2008/09/xsd.xsl" type="text/xsl"?> | |
<xs:schema targetNamespace="http://www.w3.org/XML/1998/namespace" | |
xmlns:xs="http://www.w3.org/2001/XMLSchema" | |
xmlns ="http://www.w3.org/1999/xhtml" | |
xml:lang="en"> | |
<xs:annotation> | |
<xs:documentation> | |
<div> | |
<h1>About the XML namespace</h1> | |
<div class="bodytext"> | |
<p> | |
This schema document describes the XML namespace, in a form | |
suitable for import by other schema documents. | |
</p> | |
<p> | |
See <a href="http://www.w3.org/XML/1998/namespace.html"> | |
http://www.w3.org/XML/1998/namespace.html</a> and | |
<a href="http://www.w3.org/TR/REC-xml"> | |
http://www.w3.org/TR/REC-xml</a> for information | |
about this namespace. | |
</p> | |
<p> | |
Note that local names in this namespace are intended to be | |
defined only by the World Wide Web Consortium or its subgroups. | |
The names currently defined in this namespace are listed below. | |
They should not be used with conflicting semantics by any Working | |
Group, specification, or document instance. | |
</p> | |
<p> | |
See further below in this document for more information about <a | |
href="#usage">how to refer to this schema document from your own | |
XSD schema documents</a> and about <a href="#nsversioning">the | |
namespace-versioning policy governing this schema document</a>. | |
</p> | |
</div> | |
</div> | |
</xs:documentation> | |
</xs:annotation> | |
<xs:attribute name="lang"> | |
<xs:annotation> | |
<xs:documentation> | |
<div> | |
<h3>lang (as an attribute name)</h3> | |
<p> | |
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.</p> | |
</div> | |
<div> | |
<h4>Notes</h4> | |
<p> | |
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. | |
</p> | |
<p> | |
See BCP 47 at <a href="http://www.rfc-editor.org/rfc/bcp/bcp47.txt"> | |
http://www.rfc-editor.org/rfc/bcp/bcp47.txt</a> | |
and the IANA language subtag registry at | |
<a href="http://www.iana.org/assignments/language-subtag-registry"> | |
http://www.iana.org/assignments/language-subtag-registry</a> | |
for further information. | |
</p> | |
<p> | |
The union allows for the 'un-declaration' of xml:lang with | |
the empty string. | |
</p> | |
</div> | |
</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> | |
<xs:attribute name="space"> | |
<xs:annotation> | |
<xs:documentation> | |
<div> | |
<h3>space (as an attribute name)</h3> | |
<p> | |
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.</p> | |
</div> | |
</xs:documentation> | |
</xs:annotation> | |
<xs:simpleType> | |
<xs:restriction base="xs:NCName"> | |
<xs:enumeration value="default"/> | |
<xs:enumeration value="preserve"/> | |
</xs:restriction> | |
</xs:simpleType> | |
</xs:attribute> | |
<xs:attribute name="base" type="xs:anyURI"> <xs:annotation> | |
<xs:documentation> | |
<div> | |
<h3>base (as an attribute name)</h3> | |
<p> | |
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.</p> | |
<p> | |
See <a | |
href="http://www.w3.org/TR/xmlbase/">http://www.w3.org/TR/xmlbase/</a> | |
for information about this attribute. | |
</p> | |
</div> | |
</xs:documentation> | |
</xs:annotation> | |
</xs:attribute> | |
<xs:attribute name="id" type="xs:ID"> | |
<xs:annotation> | |
<xs:documentation> | |
<div> | |
<h3>id (as an attribute name)</h3> | |
<p> | |
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.</p> | |
<p> | |
See <a | |
href="http://www.w3.org/TR/xml-id/">http://www.w3.org/TR/xml-id/</a> | |
for information about this attribute. | |
</p> | |
</div> | |
</xs:documentation> | |
</xs:annotation> | |
</xs:attribute> | |
<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> | |
<xs:annotation> | |
<xs:documentation> | |
<div> | |
<h3>Father (in any context at all)</h3> | |
<div class="bodytext"> | |
<p> | |
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: | |
</p> | |
<blockquote> | |
<p> | |
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". | |
</p> | |
</blockquote> | |
</div> | |
</div> | |
</xs:documentation> | |
</xs:annotation> | |
<xs:annotation> | |
<xs:documentation> | |
<div xml:id="usage" id="usage"> | |
<h2><a name="usage">About this schema document</a></h2> | |
<div class="bodytext"> | |
<p> | |
This schema defines attributes and an attribute group suitable | |
for use by schemas wishing to allow <code>xml:base</code>, | |
<code>xml:lang</code>, <code>xml:space</code> or | |
<code>xml:id</code> attributes on elements they define. | |
</p> | |
<p> | |
To enable this, such a schema must import this schema for | |
the XML namespace, e.g. as follows: | |
</p> | |
<pre> | |
<schema . . .> | |
. . . | |
<import namespace="http://www.w3.org/XML/1998/namespace" | |
schemaLocation="http://www.w3.org/2001/xml.xsd"/> | |
</pre> | |
<p> | |
or | |
</p> | |
<pre> | |
<import namespace="http://www.w3.org/XML/1998/namespace" | |
schemaLocation="http://www.w3.org/2009/01/xml.xsd"/> | |
</pre> | |
<p> | |
Subsequently, qualified reference to any of the attributes or the | |
group defined below will have the desired effect, e.g. | |
</p> | |
<pre> | |
<type . . .> | |
. . . | |
<attributeGroup ref="xml:specialAttrs"/> | |
</pre> | |
<p> | |
will define a type which will schema-validate an instance element | |
with any of those attributes. | |
</p> | |
</div> | |
</div> | |
</xs:documentation> | |
</xs:annotation> | |
<xs:annotation> | |
<xs:documentation> | |
<div id="nsversioning" xml:id="nsversioning"> | |
<h2><a name="nsversioning">Versioning policy for this schema document</a></h2> | |
<div class="bodytext"> | |
<p> | |
In keeping with the XML Schema WG's standard versioning | |
policy, this schema document will persist at | |
<a href="http://www.w3.org/2009/01/xml.xsd"> | |
http://www.w3.org/2009/01/xml.xsd</a>. | |
</p> | |
<p> | |
At the date of issue it can also be found at | |
<a href="http://www.w3.org/2001/xml.xsd"> | |
http://www.w3.org/2001/xml.xsd</a>. | |
</p> | |
<p> | |
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 <a href="http://www.w3.org/2001/xml.xsd"> | |
http://www.w3.org/2001/xml.xsd | |
</a> | |
will change accordingly; the version at | |
<a href="http://www.w3.org/2009/01/xml.xsd"> | |
http://www.w3.org/2009/01/xml.xsd | |
</a> | |
will not change. | |
</p> | |
<p> | |
Previous dated (and unchanging) versions of this schema | |
document are at: | |
</p> | |
<ul> | |
<li><a href="http://www.w3.org/2009/01/xml.xsd"> | |
http://www.w3.org/2009/01/xml.xsd</a></li> | |
<li><a href="http://www.w3.org/2007/08/xml.xsd"> | |
http://www.w3.org/2007/08/xml.xsd</a></li> | |
<li><a href="http://www.w3.org/2004/10/xml.xsd"> | |
http://www.w3.org/2004/10/xml.xsd</a></li> | |
<li><a href="http://www.w3.org/2001/03/xml.xsd"> | |
http://www.w3.org/2001/03/xml.xsd</a></li> | |
</ul> | |
</div> | |
</div> | |
</xs:documentation> | |
</xs:annotation> | |
</xs:schema> | |