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//usr/share/xml/XMLSchema.dtd
<!-- DTD for XML Schemas: Part 1: Structures Public Identifier: "-//W3C//DTD XMLSCHEMA 200102//EN" Official Location: http://www.w3.org/2001/XMLSchema.dtd --> <!-- $Id: XMLSchema.dtd,v 1.31 2001/10/24 15:50:16 ht Exp $ --> <!-- Note this DTD is NOT normative, or even definitive. --> <!--d--> <!-- prose copy in the structures REC is the definitive version --> <!--d--> <!-- (which shouldn't differ from this one except for this --> <!--d--> <!-- comment and entity expansions, but just in case) --> <!--d--> <!-- With the exception of cases with multiple namespace prefixes for the XML Schema namespace, any XML document which is not valid per this DTD given redefinitions in its internal subset of the 'p' and 's' parameter entities below appropriate to its namespace declaration of the XML Schema namespace is almost certainly not a valid schema. --> <!-- The simpleType element and its constituent parts are defined in XML Schema: Part 2: Datatypes --> <!ENTITY % xs-datatypes PUBLIC 'datatypes' 'datatypes.dtd' > <!ENTITY % p 'xs:'> <!-- can be overriden in the internal subset of a schema document to establish a different namespace prefix --> <!ENTITY % s ':xs'> <!-- if %p is defined (e.g. as foo:) then you must also define %s as the suffix for the appropriate namespace declaration (e.g. :foo) --> <!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' >
