<!-- The simpleType element and its constituent parts

<!--

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-->

     are defined in XML Schema: Part 2: Datatypes -->

<!ENTITY % xs-datatypes PUBLIC 'datatypes' 'datatypes.dtd' >

<!ENTITY % nds 'xmlns%s;'>

<!-- Define all the element names, with optional prefix -->

<!ENTITY % schema "%p;schema">

<!ENTITY % complexType "%p;complexType">

<!ENTITY % complexContent "%p;complexContent">

<!ENTITY % simpleContent "%p;simpleContent">

<!ENTITY % extension "%p;extension">

<!ENTITY % element "%p;element">

<!ENTITY % unique "%p;unique">

<!ENTITY % key "%p;key">

<!ENTITY % keyref "%p;keyref">

<!ENTITY % selector "%p;selector">

<!ENTITY % field "%p;field">

<!ENTITY % group "%p;group">

<!ENTITY % all "%p;all">

<!ENTITY % choice "%p;choice">

<!ENTITY % sequence "%p;sequence">

<!ENTITY % any "%p;any">

<!ENTITY % anyAttribute "%p;anyAttribute">

<!ENTITY % attribute "%p;attribute">

<!ENTITY % attributeGroup "%p;attributeGroup">

<!ENTITY % include "%p;include">

<!ENTITY % import "%p;import">

<!ENTITY % redefine "%p;redefine">

<!ENTITY % notation "%p;notation">

<!-- annotation elements -->

<!ENTITY % annotation "%p;annotation">

<!ENTITY % appinfo "%p;appinfo">

<!ENTITY % documentation "%p;documentation">

<!-- Customisation entities for the ATTLIST of each element type.

     Define one of these if your schema takes advantage of the

     anyAttribute='##other' in the schema for schemas -->

<!ENTITY % schemaAttrs ''>

<!ENTITY % complexTypeAttrs ''>

<!ENTITY % complexContentAttrs ''>

<!ENTITY % simpleContentAttrs ''>

<!ENTITY % extensionAttrs ''>

<!ENTITY % elementAttrs ''>

<!ENTITY % groupAttrs ''>

<!ENTITY % allAttrs ''>

<!ENTITY % choiceAttrs ''>

<!ENTITY % sequenceAttrs ''>

<!ENTITY % anyAttrs ''>

<!ENTITY % anyAttributeAttrs ''>

<!ENTITY % attributeAttrs ''>

<!ENTITY % attributeGroupAttrs ''>

<!ENTITY % uniqueAttrs ''>

<!ENTITY % keyAttrs ''>

<!ENTITY % keyrefAttrs ''>

<!ENTITY % selectorAttrs ''>

<!ENTITY % fieldAttrs ''>

<!ENTITY % includeAttrs ''>

<!ENTITY % importAttrs ''>

<!ENTITY % redefineAttrs ''>

<!ENTITY % notationAttrs ''>

<!ENTITY % annotationAttrs ''>

<!ENTITY % appinfoAttrs ''>

<!ENTITY % documentationAttrs ''>

<!ENTITY % complexDerivationSet "CDATA">

      <!-- #all or space-separated list drawn from derivationChoice -->

<!ENTITY % blockSet "CDATA">

      <!-- #all or space-separated list drawn from

                      derivationChoice + 'substitution' -->

<!ENTITY % mgs '%all; | %choice; | %sequence;'>

<!ENTITY % cs '%choice; | %sequence;'>

<!ENTITY % formValues '(qualified|unqualified)'>

<!ENTITY % attrDecls    '((%attribute;| %attributeGroup;)*,(%anyAttribute;)?)'>

<!ENTITY % particleAndAttrs '((%mgs; | %group;)?, %attrDecls;)'>

<!-- This is used in part2 -->

<!ENTITY % restriction1 '((%mgs; | %group;)?)'>

%xs-datatypes;

<!-- the duplication below is to produce an unambiguous content model

     which allows annotation everywhere -->

<!ELEMENT %schema; ((%include; | %import; | %redefine; | %annotation;)*,

                    (%simpleType; | %complexType;

                      | %element; | %attribute;

                      | %attributeGroup; | %group;

                      | %notation; | %annotation;)* )>

<!ATTLIST %schema;

   targetNamespace      %URIref;               #IMPLIED

   version              CDATA                  #IMPLIED

   %nds;                %URIref;               #FIXED 'http://www.w3.org/2001/XMLSchema'

   xmlns                CDATA                  #IMPLIED

   finalDefault         %complexDerivationSet; ''

   blockDefault         %blockSet;             ''

   id                   ID                     #IMPLIED

   elementFormDefault   %formValues;           'unqualified'

   attributeFormDefault %formValues;           'unqualified'

   xml:lang             CDATA                  #IMPLIED

   %schemaAttrs;>

<!-- Note the xmlns declaration is NOT in the Schema for Schemas,

     because at the Infoset level where schemas operate,

     xmlns(:prefix) is NOT an attribute! -->

<!-- The declaration of xmlns is a convenience for schema authors -->

<!-- The id attribute here and below is for use in external references

     from non-schemas using simple fragment identifiers.

     It is NOT used for schema-to-schema reference, internal or

     external. -->

<!-- a type is a named content type specification which allows attribute

     declarations-->

<!-- -->

<!ELEMENT %complexType; ((%annotation;)?,

                         (%simpleContent;|%complexContent;|

                          %particleAndAttrs;))>

<!ATTLIST %complexType;

          name      %NCName;                        #IMPLIED

          id        ID                              #IMPLIED

          abstract  %boolean;                       #IMPLIED

          final     %complexDerivationSet;          #IMPLIED

          block     %complexDerivationSet;          #IMPLIED

          mixed (true|false) 'false'

          %complexTypeAttrs;>

<!-- particleAndAttrs is shorthand for a root type -->

<!-- mixed is disallowed if simpleContent, overriden if complexContent

     has one too. -->

<!-- If anyAttribute appears in one or more referenced attributeGroups

     and/or explicitly, the intersection of the permissions is used -->

<!ELEMENT %complexContent; ((%annotation;)?, (%restriction;|%extension;))>

<!ATTLIST %complexContent;

          mixed (true|false) #IMPLIED

          id    ID           #IMPLIED

          %complexContentAttrs;>

<!-- restriction should use the branch defined above, not the simple

     one from part2; extension should use the full model  -->

<!ELEMENT %simpleContent; ((%annotation;)?, (%restriction;|%extension;))>

<!ATTLIST %simpleContent;

          id    ID           #IMPLIED

          %simpleContentAttrs;>

<!-- restriction should use the simple branch from part2, not the 

     one defined above; extension should have no particle  -->

<!ELEMENT %extension; ((%annotation;)?, (%particleAndAttrs;))>

<!ATTLIST %extension;

          base  %QName;      #REQUIRED

          id    ID           #IMPLIED

          %extensionAttrs;>

<!-- an element is declared by either:

 a name and a type (either nested or referenced via the type attribute)

 or a ref to an existing element declaration -->

<!ELEMENT %element; ((%annotation;)?, (%complexType;| %simpleType;)?,

                     (%unique; | %key; | %keyref;)*)>

<!-- simpleType or complexType only if no type|ref attribute -->

<!-- ref not allowed at top level -->

<!ATTLIST %element;

            name               %NCName;               #IMPLIED

            id                 ID                     #IMPLIED

            ref                %QName;                #IMPLIED

            type               %QName;                #IMPLIED

            minOccurs          %nonNegativeInteger;   #IMPLIED

            maxOccurs          CDATA                  #IMPLIED

            nillable           %boolean;              #IMPLIED

            substitutionGroup  %QName;                #IMPLIED

            abstract           %boolean;              #IMPLIED

            final              %complexDerivationSet; #IMPLIED

            block              %blockSet;             #IMPLIED

            default            CDATA                  #IMPLIED

            fixed              CDATA                  #IMPLIED

            form               %formValues;           #IMPLIED

            %elementAttrs;>

<!-- type and ref are mutually exclusive.

     name and ref are mutually exclusive, one is required -->

<!-- In the absence of type AND ref, type defaults to type of

     substitutionGroup, if any, else the ur-type, i.e. unconstrained -->

<!-- default and fixed are mutually exclusive -->

<!ELEMENT %group; ((%annotation;)?,(%mgs;)?)>

<!ATTLIST %group; 

          name        %NCName;               #IMPLIED

          ref         %QName;                #IMPLIED

          minOccurs   %nonNegativeInteger;   #IMPLIED

          maxOccurs   CDATA                  #IMPLIED

          id          ID                     #IMPLIED

          %groupAttrs;>

<!ELEMENT %all; ((%annotation;)?, (%element;)*)>

<!ATTLIST %all;

          minOccurs   (1)                    #IMPLIED

          maxOccurs   (1)                    #IMPLIED

          id          ID                     #IMPLIED

          %allAttrs;>

<!ELEMENT %choice; ((%annotation;)?, (%element;| %group;| %cs; | %any;)*)>

<!ATTLIST %choice;

          minOccurs   %nonNegativeInteger;   #IMPLIED

          maxOccurs   CDATA                  #IMPLIED

          id          ID                     #IMPLIED

          %choiceAttrs;>

<!ELEMENT %sequence; ((%annotation;)?, (%element;| %group;| %cs; | %any;)*)>

<!ATTLIST %sequence;

          minOccurs   %nonNegativeInteger;   #IMPLIED

          maxOccurs   CDATA                  #IMPLIED

          id          ID                     #IMPLIED

          %sequenceAttrs;>

<!-- an anonymous grouping in a model, or

     a top-level named group definition, or a reference to same -->

<!-- Note that if order is 'all', group is not allowed inside.

     If order is 'all' THIS group must be alone (or referenced alone) at

     the top level of a content model -->

<!-- If order is 'all', minOccurs==maxOccurs==1 on element/any inside -->

<!-- Should allow minOccurs=0 inside order='all' . . . -->

<!ELEMENT %any; (%annotation;)?>

<!ATTLIST %any;

            namespace       CDATA                  '##any'

            processContents (skip|lax|strict)      'strict'

            minOccurs       %nonNegativeInteger;   '1'

            maxOccurs       CDATA                  '1'

            id              ID                     #IMPLIED

            %anyAttrs;>

<!-- namespace is interpreted as follows:

                  ##any      - - any non-conflicting WFXML at all

                  ##other    - - any non-conflicting WFXML from namespace other

                                  than targetNamespace

                  ##local    - - any unqualified non-conflicting WFXML/attribute

                  one or     - - any non-conflicting WFXML from

                  more URI        the listed namespaces

                  references

                  ##targetNamespace ##local may appear in the above list,

                    with the obvious meaning -->

<!ELEMENT %anyAttribute; (%annotation;)?>

<!ATTLIST %anyAttribute;

            namespace       CDATA              '##any'

            processContents (skip|lax|strict)  'strict'

            id              ID                 #IMPLIED

            %anyAttributeAttrs;>

<!-- namespace is interpreted as for 'any' above -->

<!-- simpleType only if no type|ref attribute -->

<!-- ref not allowed at top level, name iff at top level -->

<!ELEMENT %attribute; ((%annotation;)?, (%simpleType;)?)>

<!ATTLIST %attribute;

          name      %NCName;      #IMPLIED

          id        ID            #IMPLIED

          ref       %QName;       #IMPLIED

          type      %QName;       #IMPLIED

          use       (prohibited|optional|required) #IMPLIED

          default   CDATA         #IMPLIED

          fixed     CDATA         #IMPLIED

          form      %formValues;  #IMPLIED

          %attributeAttrs;>

<!-- type and ref are mutually exclusive.

     name and ref are mutually exclusive, one is required -->

<!-- default for use is optional when nested, none otherwise -->

<!-- default and fixed are mutually exclusive -->

<!-- type attr and simpleType content are mutually exclusive -->

<!-- an attributeGroup is a named collection of attribute decls, or a

     reference thereto -->

<!ELEMENT %attributeGroup; ((%annotation;)?,

                       (%attribute; | %attributeGroup;)*,

                       (%anyAttribute;)?) >

<!ATTLIST %attributeGroup;

                 name       %NCName;       #IMPLIED

                 id         ID             #IMPLIED

                 ref        %QName;        #IMPLIED

                 %attributeGroupAttrs;>

<!-- ref iff no content, no name.  ref iff not top level -->

<!-- better reference mechanisms -->

<!ELEMENT %unique; ((%annotation;)?, %selector;, (%field;)+)>

<!ATTLIST %unique;

          name     %NCName;       #REQUIRED

	  id       ID             #IMPLIED

	  %uniqueAttrs;>

<!ELEMENT %key;    ((%annotation;)?, %selector;, (%field;)+)>

<!ATTLIST %key;

          name     %NCName;       #REQUIRED

	  id       ID             #IMPLIED

	  %keyAttrs;>

<!ELEMENT %keyref; ((%annotation;)?, %selector;, (%field;)+)>

<!ATTLIST %keyref;

          name     %NCName;       #REQUIRED

	  refer    %QName;        #REQUIRED

	  id       ID             #IMPLIED

	  %keyrefAttrs;>

<!ELEMENT %selector; ((%annotation;)?)>

<!ATTLIST %selector;

          xpath %XPathExpr; #REQUIRED

          id    ID          #IMPLIED

          %selectorAttrs;>

<!ELEMENT %field; ((%annotation;)?)>

<!ATTLIST %field;

          xpath %XPathExpr; #REQUIRED

          id    ID          #IMPLIED

          %fieldAttrs;>

<!-- Schema combination mechanisms -->

<!ELEMENT %include; (%annotation;)?>

<!ATTLIST %include;

          schemaLocation %URIref; #REQUIRED

          id             ID       #IMPLIED

          %includeAttrs;>

<!ELEMENT %import; (%annotation;)?>

<!ATTLIST %import;

          namespace      %URIref; #IMPLIED

          schemaLocation %URIref; #IMPLIED

          id             ID       #IMPLIED

          %importAttrs;>

<!ELEMENT %redefine; (%annotation; | %simpleType; | %complexType; |

                      %attributeGroup; | %group;)*>

<!ATTLIST %redefine;

          schemaLocation %URIref; #REQUIRED

          id             ID       #IMPLIED

          %redefineAttrs;>

<!ELEMENT %notation; (%annotation;)?>

<!ATTLIST %notation;

	  name        %NCName;    #REQUIRED

	  id          ID          #IMPLIED

	  public      CDATA       #REQUIRED

	  system      %URIref;    #IMPLIED

	  %notationAttrs;>

<!-- Annotation is either application information or documentation -->

<!-- By having these here they are available for datatypes as well

     as all the structures elements -->

<!ELEMENT %annotation; (%appinfo; | %documentation;)*>

<!ATTLIST %annotation; %annotationAttrs;>

<!-- User must define annotation elements in internal subset for this

     to work -->

<!ELEMENT %appinfo; ANY>   <!-- too restrictive -->

<!ATTLIST %appinfo;

          source     %URIref;      #IMPLIED

          id         ID         #IMPLIED

          %appinfoAttrs;>

<!ELEMENT %documentation; ANY>   <!-- too restrictive -->

<!ATTLIST %documentation;

          source     %URIref;   #IMPLIED

          id         ID         #IMPLIED

          xml:lang   CDATA      #IMPLIED

          %documentationAttrs;>

<!NOTATION XMLSchemaStructures PUBLIC

           'structures' 'http://www.w3.org/2001/XMLSchema.xsd' >

<!NOTATION XML PUBLIC

           'REC-xml-1998-0210' 'http://www.w3.org/TR/1998/REC-xml-19980210' >