- This schema document describes the XML namespace, in a form - suitable for import by other schema documents. -
-- See - http://www.w3.org/XML/1998/namespace.html and - - http://www.w3.org/TR/REC-xml for information - about this namespace. -
-- 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. -
-- See further below in this document for more information about how to refer to this schema document from your own - XSD schema documents and about the - namespace-versioning policy governing this schema document. -
-- 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.
- -- 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 BCP 47 at - http://www.rfc-editor.org/rfc/bcp/bcp47.txt - and the IANA language subtag registry at - - http://www.iana.org/assignments/language-subtag-registry - for further information. -
-- The union allows for the 'un-declaration' of xml:lang with - the empty string. -
-- 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.
- -- 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.
- -- See http://www.w3.org/TR/xmlbase/ - for information about this attribute. -
-- 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.
- -- See http://www.w3.org/TR/xml-id/ - for information about this attribute. -
-- 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"/> --
- or -
-- <import namespace="http://www.w3.org/XML/1998/namespace" - schemaLocation="http://www.w3.org/2009/01/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/2009/01/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/2009/01/xml.xsd - - will not change. -
-- Previous dated (and unchanging) versions of this schema - document are at: -
- -