XML Schema 1.1 Part 2: Datatypes

Editor's Draft 8 February 2008

This version:
../datatypes/
Latest version:
http://www.w3.org/TR/xmlschema11-2/
Previous versions:
http://www.w3.org/TR/2006/WD-xmlschema11-2-20060217/ http://www.w3.org/TR/2006/WD-xmlschema11-2-20060116/ http://www.w3.org/TR/2005/WD-xmlschema11-2-20050224/ http://www.w3.org/TR/2004/WD-xmlschema11-2-20040716/
Editors:
David Peterson, invited expert (SGMLWorks!) <davep@iit.edu>
Paul V. Biron, Kaiser Permanente, for Health Level Seven <Paul.V.Biron@kp.org>
Ashok Malhotra, Oracle Corporation <ashokmalhotra@alum.mit.edu>

This document is also available in these non-normative formats: XML, XHTML with changes since version 1.0 marked, XHTML with changes since previous Working Draft marked, Independent copy of the schema for schema documents, Independent copy of the DTD for schema documents, and List of translations.

Copyright © 2008 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C liability, trademark and document use rules apply.

...

Status of this Document

This document is an editors' copy that has no official standing.

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.

This is a ↑member-only review version which will in due course become a↑ Public Working Draft of XML Schema 1.1: Datatypes. It ↑has no formal standing within W3C; it↑ is here made available for review by W3C members↓ and the public↓. This version of this document was created on 8 February 2008.↑ It reflects (unless otherwise noted elsewhere) all decisions on this document made by the Working Group through 8 February 2008. The document thus incorporates all decisions made by the Working Group to date. ↑

↑
It also includes the following proposals for changes to the wording of the spec:
  • A wording proposal which resolves issue 4839 Bug in anchor for documentation of hexBinary type, by (a) correcting the typo in the schema for schema documents which gives the wrong anchor for the hexBinary type, and (b) correcting the base URI or all documentation links in the schema for schema documents from XSD 1.0 Part 2 to XSD 1.1 Part 2.
↑

For those primarily interested in the changes since version 1.0, the Changes since version 1.0 (§H) appendix, which summarizes both changes already made and also those in prospect, with links to the relevant sections of this draft, is the recommended starting point. An accompanying version of this document displays in color all changes to normative text since version 1.0; another shows changes since the previous Working Draft.

The major changes since version 1.0 include:

Changes since the previous Working Draft include the following:

Comments on this document should be made in W3C's public installation of Bugzilla, specifying "XML Schema" as the product. Instructions can be found at http://www.w3.org/XML/2006/01/public-bugzilla. If access to Bugzilla is not feasible, please send your comments to the W3C XML Schema comments mailing list, www-xml-schema-comments@w3.org (archive) Each Bugzilla entry and email message should contain only one comment.

The end of the Last Call review period is 8 November 2007; comments received after that date will be considered if time allows, but no guarantees can be offered.

Although feedback based on any aspect of this specification is welcome, there are certain aspects of the design presented herein for which the Working Group is particularly interested in feedback. These are designated 'priority feedback' aspects of the design, and identified as such in editorial notes at appropriate points in this draft.

Publication as a Working Draft does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

This document has been produced by the W3C XML Schema Working Group as part of the W3C XML Activity. The goals of the XML Schema language version 1.1 are discussed in the Requirements for XML Schema 1.1 document. The authors of this document are the members of the XML Schema Working Group. Different parts of this specification have different editors.

This document was produced under the 5 February 2004 W3C Patent Policy. The Working Group maintains a public list of patent disclosures made in connection with this document; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) with respect to this specification must disclose the information in accordance with section 6 of the W3C Patent Policy.

The English version of this specification is the only normative version. Information about translations of this document is available at http://www.w3.org/2003/03/Translations/byTechnology?technology=xmlschema.

The presentation of this document has been augmented to identify changes from a previous version, controlled by dg-temp.xml, which shows the status-quo text without adornment. Three kinds of changes are highlighted: ↑new, added text↑, ↑changed text↓, and ↓deleted text↓.

Table of Contents

1 Introduction
    1.1 Introduction to Version 1.1
    1.2 Purpose
    1.3 Dependencies on Other Specifications
    1.4 Requirements
    1.5 Scope
    1.6 Terminology
    1.7 Constraints and Contributions
2 Datatype System
    2.1 Datatype
    2.2 Value space
    2.3 The Lexical Space and Lexical Mapping
    2.4 Datatype Distinctions
3 Built-in Datatypes and Their Definitions
    3.1 Namespace considerations
    3.2 Special Built-in Datatypes
anySimpleType · anyAtomicType
    3.3 Primitive Datatypes
string · boolean · decimal · precisionDecimal · float · double · duration · dateTime · time · date · gYearMonth · gYear · gMonthDay · gDay · gMonth · hexBinary · base64Binary · anyURI · QName · NOTATION
    3.4 Other Built-in Datatypes
normalizedString · token · language · NMTOKEN · NMTOKENS · Name · NCName · ID · IDREF · IDREFS · ENTITY · ENTITIES · integer · nonPositiveInteger · negativeInteger · long · int · short · byte · nonNegativeInteger · unsignedLong · unsignedInt · unsignedShort · unsignedByte · positiveInteger · yearMonthDuration · dayTimeDuration
4 Datatype components
    4.1 Simple Type Definition
    4.2 Fundamental Facets
    4.3 Constraining Facets
5 Conformance
    5.1 Partial Implementation of Infinite Datatypes

Appendices

A Schema for Schema Documents (Datatypes) (normative)
B DTD for Datatype Definitions (non-normative)
C Illustrative XML representations for the built-in simple type definitions
    C.1 Illustrative XML representations for the built-in primitive type definitions
    C.2 Illustrative XML representations for the built-in ordinary type definitions
D Built-up Value Spaces
    D.1 Numerical Values
    D.2 Date/time Values
E Function Definitions
    E.1 Generic Number-related Functions
    E.2 Duration-related Definitions
    E.3 Date/time-related Definitions
    E.4 Lexical and Canonical Mappings for Other Datatypes
F Datatypes and Facets
    F.1 Fundamental Facets
G Regular Expressions
    G.1 Character Classes
H Changes since version 1.0
    H.1 Datatypes and Facets
    H.2 Numerical Datatypes
    H.3 Date/time Datatypes
    H.4 Other changes
I Glossary (non-normative)
J References
    J.1 Normative
    J.2 Non-normative
K Acknowledgements (non-normative)
...

A Schema for Schema Documents (Datatypes) (normative)

The XML representation of the datatypes-relevant part of the schema for schema documents is presented here as a normative part of the specification.

Like any other XML document, schema documents may carry XML and document type declarations. An XML declaration and a document type declaration are provided here for convenience. Since this schema document describes the XML Schema language, the targetNamespace attribute on the schema element refers to the XML Schema namespace itself.

Schema documents conforming to this specification may be in XML 1.0 or XML 1.1. Conforming implementations may accept input in XML 1.0 or XML 1.1 or both. See Dependencies on Other Specifications (§1.3).

...
<?xml version='1.0'?>
<!DOCTYPE xs:schema PUBLIC "-//W3C//DTD XMLSCHEMA 200102//EN" "XMLSchema.dtd" [

<!--
        Make sure that processors that do not read the external
        subset will know about the various IDs we declare
  -->
        <!ATTLIST xs:simpleType id ID #IMPLIED>
        <!ATTLIST xs:maxExclusive id ID #IMPLIED>
        <!ATTLIST xs:minExclusive id ID #IMPLIED>
        <!ATTLIST xs:maxInclusive id ID #IMPLIED>
        <!ATTLIST xs:minInclusive id ID #IMPLIED>
        <!ATTLIST xs:totalDigits id ID #IMPLIED>
        <!ATTLIST xs:fractionDigits id ID #IMPLIED>

        <!ATTLIST xs:maxScale id ID #IMPLIED>
        <!ATTLIST xs:minScale id ID #IMPLIED>
        <!ATTLIST xs:length id ID #IMPLIED>
        <!ATTLIST xs:minLength id ID #IMPLIED>
        <!ATTLIST xs:maxLength id ID #IMPLIED>
        <!ATTLIST xs:enumeration id ID #IMPLIED>
        <!ATTLIST xs:pattern id ID #IMPLIED>
        <!ATTLIST xs:appinfo id ID #IMPLIED>
        <!ATTLIST xs:documentation id ID #IMPLIED>
        <!ATTLIST xs:list id ID #IMPLIED>
        <!ATTLIST xs:union id ID #IMPLIED>
        ]>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 

           blockDefault="#all" 
           elementFormDefault="qualified" 

           xml:lang="en"
           targetNamespace="http://www.w3.org/2001/XMLSchema"
           version="datatypes.xsd (review-20080208)">
  <xs:annotation>
    <xs:documentation source="../datatypes/datatypes.html">
      The schema corresponding to this document is normative,
      with respect to the syntactic constraints it expresses in the
      XML Schema language.  The documentation (within &lt;documentation>
      elements) below, is not normative, but rather highlights important
      aspects of the W3C Recommendation of which this is a part
    </xs:documentation>
  </xs:annotation>


  <xs:simpleType name="derivationControl">
    <xs:annotation>
      <xs:documentation>
   A utility type, not for public use</xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:NMTOKEN">
      <xs:enumeration value="substitution"/>
      <xs:enumeration value="extension"/>
      <xs:enumeration value="restriction"/>
      <xs:enumeration value="list"/>
      <xs:enumeration value="union"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:group name="simpleDerivation">
    <xs:choice>
      <xs:element ref="xs:restriction"/>
      <xs:element ref="xs:list"/>
      <xs:element ref="xs:union"/>
    </xs:choice>
  </xs:group>
  <xs:simpleType name="simpleDerivationSet">
    <xs:annotation>
      <xs:documentation>
   #all or (possibly empty) subset of {restriction, extension, union, list}
   </xs:documentation>
      <xs:documentation>
   A utility type, not for public use</xs:documentation>
    </xs:annotation>
    <xs:union>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="#all"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:list>
          <xs:simpleType>
            <xs:restriction base="xs:derivationControl">
              <xs:enumeration value="list"/>
              <xs:enumeration value="union"/>
              <xs:enumeration value="restriction"/>

              <xs:enumeration value="extension"/>
            </xs:restriction>
          </xs:simpleType>
        </xs:list>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:complexType name="simpleType" abstract="true">
    <xs:complexContent>
      <xs:extension base="xs:annotated">
        <xs:group ref="xs:simpleDerivation"/>
        <xs:attribute name="final" type="xs:simpleDerivationSet"/>
        <xs:attribute name="name" type="xs:NCName">
          <xs:annotation>
            <xs:documentation>
              Can be restricted to required or forbidden
            </xs:documentation>
          </xs:annotation>
        </xs:attribute>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="topLevelSimpleType">
    <xs:complexContent>
      <xs:restriction base="xs:simpleType">
        <xs:sequence>
          <xs:element ref="xs:annotation" minOccurs="0"/>
          <xs:group ref="xs:simpleDerivation"/>
        </xs:sequence>
        <xs:attribute name="name" type="xs:NCName" use="required">
          <xs:annotation>
            <xs:documentation>
              Required at the top level
            </xs:documentation>
          </xs:annotation>
        </xs:attribute>
        <xs:anyAttribute namespace="##other" processContents="lax"/>
      </xs:restriction>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="localSimpleType">
    <xs:complexContent>
      <xs:restriction base="xs:simpleType">
        <xs:sequence>
          <xs:element ref="xs:annotation" minOccurs="0"/>
          <xs:group ref="xs:simpleDerivation"/>
        </xs:sequence>
        <xs:attribute name="name" use="prohibited">
          <xs:annotation>
            <xs:documentation>
              Forbidden when nested
            </xs:documentation>
          </xs:annotation>
        </xs:attribute>
        <xs:attribute name="final" use="prohibited"/>
        <xs:anyAttribute namespace="##other" processContents="lax"/>
      </xs:restriction>
    </xs:complexContent>
  </xs:complexType>
  <xs:element name="simpleType" type="xs:topLevelSimpleType" id="simpleType">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-simpleType"/>
    </xs:annotation>
  </xs:element>
  <xs:group name="facets">
    <xs:annotation>
      <xs:documentation>
       We should use a substitution group for facets, but
       that's ruled out because it would allow users to
       add their own, which we're not ready for yet.
    </xs:documentation>
    </xs:annotation>
    <xs:choice>
      <xs:element ref="xs:minExclusive"/>
      <xs:element ref="xs:minInclusive"/>
      <xs:element ref="xs:maxExclusive"/>
      <xs:element ref="xs:maxInclusive"/>
      <xs:element ref="xs:totalDigits"/>
      <xs:element ref="xs:fractionDigits"/>

      <xs:element ref="xs:maxScale"/>
      <xs:element ref="xs:minScale"/>
      <xs:element ref="xs:length"/>
      <xs:element ref="xs:minLength"/>
      <xs:element ref="xs:maxLength"/>
      <xs:element ref="xs:enumeration"/>
      <xs:element ref="xs:whiteSpace"/>
      <xs:element ref="xs:pattern"/>
    </xs:choice>
  </xs:group>
  <xs:group name="simpleRestrictionModel">
    <xs:sequence>
      <xs:element name="simpleType" type="xs:localSimpleType" minOccurs="0"/>
      <xs:group ref="xs:facets" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="restriction" id="restriction">
    <xs:complexType>
      <xs:annotation>
        <xs:documentation
             source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-restriction">
          base attribute and simpleType child are mutually
          exclusive, but one or other is required
        </xs:documentation>
      </xs:annotation>
      <xs:complexContent>
        <xs:extension base="xs:annotated">
          <xs:group ref="xs:simpleRestrictionModel"/>
          <xs:attribute name="base" type="xs:QName" use="optional"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="list" id="list">
    <xs:complexType>
      <xs:annotation>
        <xs:documentation
             source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-list">
          itemType attribute and simpleType child are mutually
          exclusive, but one or other is required
        </xs:documentation>
      </xs:annotation>
      <xs:complexContent>
        <xs:extension base="xs:annotated">
          <xs:sequence>
            <xs:element name="simpleType" type="xs:localSimpleType"
                        minOccurs="0"/>
          </xs:sequence>
          <xs:attribute name="itemType" type="xs:QName" use="optional"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="union" id="union">
    <xs:complexType>
      <xs:annotation>
        <xs:documentation
             source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-union">
          memberTypes attribute must be non-empty or there must be
          at least one simpleType child
        </xs:documentation>
      </xs:annotation>
      <xs:complexContent>
        <xs:extension base="xs:annotated">
          <xs:sequence>
            <xs:element name="simpleType" type="xs:localSimpleType"
                        minOccurs="0" maxOccurs="unbounded"/>
          </xs:sequence>
          <xs:attribute name="memberTypes" use="optional">
            <xs:simpleType>
              <xs:list itemType="xs:QName"/>
            </xs:simpleType>
          </xs:attribute>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
  <xs:complexType name="facet">
    <xs:complexContent>
      <xs:extension base="xs:annotated">
        <xs:attribute name="value" use="required"/>
        <xs:attribute name="fixed" type="xs:boolean" default="false"
                      use="optional"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="noFixedFacet">
    <xs:complexContent>
      <xs:restriction base="xs:facet">
        <xs:sequence>
          <xs:element ref="xs:annotation" minOccurs="0"/>
        </xs:sequence>
        <xs:attribute name="fixed" use="prohibited"/>
        <xs:anyAttribute namespace="##other" processContents="lax"/>
      </xs:restriction>
    </xs:complexContent>
  </xs:complexType>
  <xs:element name="minExclusive" type="xs:facet" id="minExclusive">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-minExclusive"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="minInclusive" type="xs:facet" id="minInclusive">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-minInclusive"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="maxExclusive" type="xs:facet" id="maxExclusive">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-maxExclusive"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="maxInclusive" type="xs:facet" id="maxInclusive">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-maxInclusive"/>
    </xs:annotation>
  </xs:element>
  <xs:complexType name="numFacet">
    <xs:complexContent>
      <xs:restriction base="xs:facet">
        <xs:sequence>
          <xs:element ref="xs:annotation" minOccurs="0"/>
        </xs:sequence>
        <xs:attribute name="value" type="xs:nonNegativeInteger" use="required"/>
        <xs:anyAttribute namespace="##other" processContents="lax"/>
      </xs:restriction>
    </xs:complexContent>
  </xs:complexType>


  <xs:complexType name="intFacet">
    <xs:complexContent>
      <xs:restriction base="xs:facet">
        <xs:sequence>
          <xs:element ref="xs:annotation" minOccurs="0"/>
        </xs:sequence>
        <xs:attribute name="value" type="xs:integer" use="required"/>
        <xs:anyAttribute namespace="##other" processContents="lax"/>
      </xs:restriction>
    </xs:complexContent>
  </xs:complexType>

  <xs:element name="totalDigits" id="totalDigits">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-totalDigits"/>
    </xs:annotation>
    <xs:complexType>
      <xs:complexContent>
        <xs:restriction base="xs:numFacet">
          <xs:sequence>
            <xs:element ref="xs:annotation" minOccurs="0"/>
          </xs:sequence>
          <xs:attribute name="value" type="xs:positiveInteger" use="required"/>
          <xs:anyAttribute namespace="##other" processContents="lax"/>
        </xs:restriction>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="fractionDigits" type="xs:numFacet" id="fractionDigits">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-fractionDigits"/>
    </xs:annotation>
  </xs:element>

  <xs:element name="maxScale" type="xs:intFacet" id="maxScale">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-maxScale"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="minScale" type="xs:intFacet" id="minScale">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-minScale"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="length" type="xs:numFacet" id="length">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-length"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="minLength" type="xs:numFacet" id="minLength">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-minLength"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="maxLength" type="xs:numFacet" id="maxLength">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-maxLength"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="enumeration" type="xs:noFixedFacet" id="enumeration">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-enumeration"/>
    </xs:annotation>
  </xs:element>
  <xs:element name="whiteSpace" id="whiteSpace">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-whiteSpace"/>
    </xs:annotation>
    <xs:complexType>
      <xs:complexContent>
        <xs:restriction base="xs:facet">
          <xs:sequence>
            <xs:element ref="xs:annotation" minOccurs="0"/>
          </xs:sequence>
          <xs:attribute name="value" use="required">
            <xs:simpleType>
              <xs:restriction base="xs:NMTOKEN">
                <xs:enumeration value="preserve"/>
                <xs:enumeration value="replace"/>
                <xs:enumeration value="collapse"/>
              </xs:restriction>
            </xs:simpleType>
          </xs:attribute>
          <xs:anyAttribute namespace="##other" processContents="lax"/>
        </xs:restriction>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>

  <xs:element name="pattern" id="pattern">
    <xs:annotation>
      <xs:documentation
           source="http://www.w3.org/TR/xmlschema↑11↑-2/#element-pattern"/>
    </xs:annotation>
    <xs:complexType>
      <xs:complexContent>
        <xs:restriction base="xs:noFixedFacet">
          <xs:sequence>
            <xs:element ref="xs:annotation" minOccurs="0"/>
          </xs:sequence>
          <xs:attribute name="value" type="xs:string" use="required"/>
          <xs:anyAttribute namespace="##other" processContents="lax"/>
        </xs:restriction>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
</xs:schema>
...

C Illustrative XML representations for the built-in simple type definitions

next sub-sectionC.1 Illustrative XML representations for the built-in primitive type definitions

The following, although in the form of a schema document, does not conform to the rules for schema documents defined in this specification. It contains explicit XML representations of the primitive datatypes which need not be declared in a schema document, since they are automatically included in every schema, and indeed must not be declared in a schema document, since it is forbidden to try to derive types with anyAtomicType as the base type definition. It is included here as a form of documentation.

...
<?xml version='1.0'?>
<!DOCTYPE xs:schema SYSTEM "../namespace/XMLSchema.dtd" [

<!--
     keep this schema XML1.0 DTD valid
  -->
        <!ENTITY % schemaAttrs 'xmlns:hfp CDATA #IMPLIED'>

        <!ELEMENT hfp:hasFacet EMPTY>
        <!ATTLIST hfp:hasFacet
                name NMTOKEN #REQUIRED>

        <!ELEMENT hfp:hasProperty EMPTY>
        <!ATTLIST hfp:hasProperty
                name NMTOKEN #REQUIRED
                value CDATA #REQUIRED>
]>
<xs:schema
  xmlns:hfp="http://www.w3.org/2001/XMLSchema-hasFacetAndProperty" 
  xmlns:xs="http://www.w3.org/2001/XMLSchema" 
  blockDefault="#all" 
  elementFormDefault="qualified" 
  xml:lang="en" 
  targetNamespace="http://www.w3.org/2001/XMLSchema">

  <xs:annotation>
    <xs:documentation>
      This document contains XML elements which look like 
      definitions for the primitive datatypes.  These definitions are for
      information only; the real built-in definitions are magic.
    </xs:documentation>
    <xs:documentation>
      For each built-in datatype in this schema (both primitive and
      derived) can be uniquely addressed via a URI constructed
      as follows:
        1) the base URI is the URI of the XML Schema namespace
        2) the fragment identifier is the name of the datatype

      For example, to address the int datatype, the URI is:

        http://www.w3.org/2001/XMLSchema#int

      Additionally, each facet definition element can be uniquely
      addressed via a URI constructed as follows:
        1) the base URI is the URI of the XML Schema namespace
        2) the fragment identifier is the name of the facet

      For example, to address the maxInclusive facet, the URI is:

        http://www.w3.org/2001/XMLSchema#maxInclusive

      Additionally, each facet usage in a built-in datatype definition
      can be uniquely addressed via a URI constructed as follows:
        1) the base URI is the URI of the XML Schema namespace
        2) the fragment identifier is the name of the datatype, followed
           by a period (".") followed by the name of the facet

      For example, to address the usage of the maxInclusive facet in
      the definition of int, the URI is:

        http://www.w3.org/2001/XMLSchema#int.maxInclusive

    </xs:documentation>
  </xs:annotation>
  <xs:simpleType name="string" id="string">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#string"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace value="preserve" id="string.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="boolean" id="boolean">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="finite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#boolean"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="boolean.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="float" id="float">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="true"/>
        <hfp:hasProperty name="cardinality" value="finite"/>
        <hfp:hasProperty name="numeric" value="true"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#float"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="float.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="double" id="double">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="true"/>
        <hfp:hasProperty name="cardinality" value="finite"/>
        <hfp:hasProperty name="numeric" value="true"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#double"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="double.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="decimal" id="decimal">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="totalDigits"/>
        <hfp:hasFacet name="fractionDigits"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="total"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="true"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#decimal"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="decimal.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="precisionDecimal" id="precisionDecimal">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="totalDigits"/>
        <hfp:hasFacet name="maxScale"/>
        <hfp:hasFacet name="minScale"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="true"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#precisionDecimal"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="precisionDecimal.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="duration" id="duration">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#duration"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="duration.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="dateTime" id="dateTime">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#dateTime"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="dateTime.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="time" id="time">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#time"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="time.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="date" id="date">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#date"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="date.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="gYearMonth" id="gYearMonth">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#gYearMonth"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="gYearMonth.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="gYear" id="gYear">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#gYear"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="gYear.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="gMonthDay" id="gMonthDay">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#gMonthDay"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="gMonthDay.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="gDay" id="gDay">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#gDay"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="gDay.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="gMonth" id="gMonth">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="maxInclusive"/>
        <hfp:hasFacet name="maxExclusive"/>
        <hfp:hasFacet name="minInclusive"/>
        <hfp:hasFacet name="minExclusive"/>
        <hfp:hasProperty name="ordered" value="partial"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#gMonth"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="gMonth.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="hexBinary" id="hexBinary">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/↓#binary↓↑#hexBinary↑"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="hexBinary.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="base64Binary" id="base64Binary">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#base64Binary"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="base64Binary.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="anyURI" id="anyURI">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#anyURI"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="anyURI.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="QName" id="QName">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#QName"/>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="QName.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="NOTATION" id="NOTATION">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#NOTATION"/>
      <xs:documentation>
        NOTATION cannot be used directly in a schema; rather a type
        must be derived from it by specifying at least one enumeration
        facet whose value is the name of a NOTATION declared in the
        schema.
      </xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:anyAtomicType">
      <xs:whiteSpace fixed="true" value="collapse" id="NOTATION.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
</xs:schema>

previous sub-section C.2 Illustrative XML representations for the built-in ordinary type definitions

The following, although in the form of a schema document, contains XML representations of components already present in all schemas by definition. It is included here as a form of documentation.

...
...
...
<?xml version='1.0'?>
<!DOCTYPE xs:schema SYSTEM "../namespace/XMLSchema.dtd" [

<!--
     keep this schema XML1.0 DTD valid
  -->
        <!ENTITY % schemaAttrs 'xmlns:hfp CDATA #IMPLIED'>

        <!ELEMENT hfp:hasFacet EMPTY>
        <!ATTLIST hfp:hasFacet
                name NMTOKEN #REQUIRED>

        <!ELEMENT hfp:hasProperty EMPTY>
        <!ATTLIST hfp:hasProperty
                name NMTOKEN #REQUIRED
                value CDATA #REQUIRED>

]>
<xs:schema
  xmlns:hfp="http://www.w3.org/2001/XMLSchema-hasFacetAndProperty"
  xmlns:xs="http://www.w3.org/2001/XMLSchema" 
  blockDefault="#all" 
  elementFormDefault="qualified" 
  xml:lang="en" 
  targetNamespace="http://www.w3.org/2001/XMLSchema">
 <xs:annotation>
    <xs:documentation>
      This document contains XML representations for the 
     ordinary non-primitive built-in datatypes
    </xs:documentation>
  </xs:annotation>
  <xs:simpleType name="normalizedString" id="normalizedString">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#normalizedString"/>
    </xs:annotation>
    <xs:restriction base="xs:string">
      <xs:whiteSpace value="replace" id="normalizedString.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="token" id="token">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#token"/>
    </xs:annotation>
    <xs:restriction base="xs:normalizedString">
      <xs:whiteSpace value="collapse" id="token.whiteSpace"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="language" id="language">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#language"/>
    </xs:annotation>
    <xs:restriction base="xs:token">
      <xs:pattern value="[a-zA-Z]{1,8}(-[a-zA-Z0-9]{1,8})*" id="language.pattern">
        <xs:annotation>
          <xs:documentation source="http://www.ietf.org/rfc/bcp/bcp47.txt">
            pattern specifies the content of section 2.12 of XML 1.0e2
            and RFC 3066 (Revised version of RFC 1766).  N.B. RFC 3066 is now
            obsolete; the grammar of RFC4646 is more restrictive.  So strict
            conformance to the rules for language codes requires extra checking
            beyond validation against this type.
          </xs:documentation>
        </xs:annotation>
      </xs:pattern>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="IDREFS" id="IDREFS">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#IDREFS"/>
    </xs:annotation>
    <xs:restriction>
      <xs:simpleType>
        <xs:list itemType="xs:IDREF"/>
      </xs:simpleType>
      <xs:minLength value="1" id="IDREFS.minLength"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="ENTITIES" id="ENTITIES">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#ENTITIES"/>
    </xs:annotation>
    <xs:restriction>
      <xs:simpleType>
        <xs:list itemType="xs:ENTITY"/>
      </xs:simpleType>
      <xs:minLength value="1" id="ENTITIES.minLength"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="NMTOKEN" id="NMTOKEN">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#NMTOKEN"/>
    </xs:annotation>
    <xs:restriction base="xs:token">
      <xs:pattern value="\c+" id="NMTOKEN.pattern">
        <xs:annotation>
          <xs:documentation source="http://www.w3.org/TR/REC-xml#NT-Nmtoken">
            pattern matches production 7 from the XML spec
          </xs:documentation>
        </xs:annotation>
      </xs:pattern>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="NMTOKENS" id="NMTOKENS">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasFacet name="length"/>
        <hfp:hasFacet name="minLength"/>
        <hfp:hasFacet name="maxLength"/>
        <hfp:hasFacet name="enumeration"/>
        <hfp:hasFacet name="whiteSpace"/>
        <hfp:hasFacet name="pattern"/>
        <hfp:hasProperty name="ordered" value="false"/>
        <hfp:hasProperty name="bounded" value="false"/>
        <hfp:hasProperty name="cardinality" value="countably infinite"/>
        <hfp:hasProperty name="numeric" value="false"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#NMTOKENS"/>
    </xs:annotation>
    <xs:restriction>
      <xs:simpleType>
        <xs:list itemType="xs:NMTOKEN"/>
      </xs:simpleType>
      <xs:minLength value="1" id="NMTOKENS.minLength"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="Name" id="Name">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#Name"/>
    </xs:annotation>
    <xs:restriction base="xs:token">
      <xs:pattern value="\i\c*" id="Name.pattern">
        <xs:annotation>
          <xs:documentation source="http://www.w3.org/TR/REC-xml#NT-Name">
            pattern matches production 5 from the XML spec
          </xs:documentation>
        </xs:annotation>
      </xs:pattern>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="NCName" id="NCName">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#NCName"/>
    </xs:annotation>
    <xs:restriction base="xs:Name">
      <xs:pattern value="[\i-[:]][\c-[:]]*" id="NCName.pattern">
        <xs:annotation>
          <xs:documentation source="http://www.w3.org/TR/REC-xml-names/#NT-NCName">
            pattern matches production 4 from the Namespaces in XML spec
          </xs:documentation>
        </xs:annotation>
      </xs:pattern>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="ID" id="ID">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#ID"/>
    </xs:annotation>
    <xs:restriction base="xs:NCName"/>
  </xs:simpleType>
  <xs:simpleType name="IDREF" id="IDREF">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#IDREF"/>
    </xs:annotation>
    <xs:restriction base="xs:NCName"/>
  </xs:simpleType>
  <xs:simpleType name="ENTITY" id="ENTITY">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#ENTITY"/>
    </xs:annotation>
    <xs:restriction base="xs:NCName"/>
  </xs:simpleType>
  <xs:simpleType name="integer" id="integer">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#integer"/>
    </xs:annotation>
    <xs:restriction base="xs:decimal">
      <xs:fractionDigits fixed="true" value="0" id="integer.fractionDigits"/>
      <xs:pattern value="[\-+]?[0-9]+" id="integer.pattern"/>
      
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="nonPositiveInteger" id="nonPositiveInteger">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#nonPositiveInteger"/>
    </xs:annotation>
    <xs:restriction base="xs:integer">
      <xs:maxInclusive value="0" id="nonPositiveInteger.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="negativeInteger" id="negativeInteger">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#negativeInteger"/>
    </xs:annotation>
    <xs:restriction base="xs:nonPositiveInteger">
      <xs:maxInclusive value="-1" id="negativeInteger.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="long" id="long">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasProperty name="bounded" value="true"/>
        <hfp:hasProperty name="cardinality" value="finite"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#long"/>
    </xs:annotation>
    <xs:restriction base="xs:integer">
      <xs:minInclusive value="-9223372036854775808" id="long.minInclusive"/>
      <xs:maxInclusive value="9223372036854775807" id="long.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="int" id="int">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#int"/>
    </xs:annotation>
    <xs:restriction base="xs:long">
      <xs:minInclusive value="-2147483648" id="int.minInclusive"/>
      <xs:maxInclusive value="2147483647" id="int.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="short" id="short">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#short"/>
    </xs:annotation>
    <xs:restriction base="xs:int">
      <xs:minInclusive value="-32768" id="short.minInclusive"/>
      <xs:maxInclusive value="32767" id="short.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="byte" id="byte">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#byte"/>
    </xs:annotation>
    <xs:restriction base="xs:short">
      <xs:minInclusive value="-128" id="byte.minInclusive"/>
      <xs:maxInclusive value="127" id="byte.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="nonNegativeInteger" id="nonNegativeInteger">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#nonNegativeInteger"/>
    </xs:annotation>
    <xs:restriction base="xs:integer">
      <xs:minInclusive value="0" id="nonNegativeInteger.minInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="unsignedLong" id="unsignedLong">
    <xs:annotation>
      <xs:appinfo>
        <hfp:hasProperty name="bounded" value="true"/>
        <hfp:hasProperty name="cardinality" value="finite"/>
      </xs:appinfo>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#unsignedLong"/>
    </xs:annotation>
    <xs:restriction base="xs:nonNegativeInteger">
      <xs:maxInclusive value="18446744073709551615" id="unsignedLong.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="unsignedInt" id="unsignedInt">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#unsignedInt"/>
    </xs:annotation>
    <xs:restriction base="xs:unsignedLong">
      <xs:maxInclusive value="4294967295" id="unsignedInt.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="unsignedShort" id="unsignedShort">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#unsignedShort"/>
    </xs:annotation>
    <xs:restriction base="xs:unsignedInt">
      <xs:maxInclusive value="65535" id="unsignedShort.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="unsignedByte" id="unsignedByte">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#unsignedByte"/>
    </xs:annotation>
    <xs:restriction base="xs:unsignedShort">
      <xs:maxInclusive value="255" id="unsignedByte.maxInclusive"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="positiveInteger" id="positiveInteger">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#positiveInteger"/>
    </xs:annotation>
    <xs:restriction base="xs:nonNegativeInteger">
      <xs:minInclusive value="1" id="positiveInteger.minInclusive"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="yearMonthDuration">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#yearMonthDuration">
        This type includes just those durations expressed in years and months.
        Since the pattern given excludes days, hours, minutes, and seconds,
        the values of this type have a seconds property of zero.  They are
        totally ordered.
      </xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:duration">
      <xs:pattern id="yearMonthDuration.pattern" value="[^DT]*"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="dayTimeDuration">
    <xs:annotation>
      <xs:documentation source="http://www.w3.org/TR/xmlschema↑11↑-2/#dayTimeDuration">
        This type includes just those durations expressed in days, hours, minutes, and seconds.
        The pattern given excludes years and months, so the values of this type 
        have a months property of zero.  They are totally ordered.
      </xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:duration">
      <xs:pattern id="dayTimeDuration.pattern" value="[^YM]*(T.*)?"/>
     </xs:restriction>
  </xs:simpleType>

</xs:schema>
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