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<!-- DTD for XML Schema Definition Language Part 1: Structures
Public Identifier: "-//W3C//DTD XMLSCHEMA 200102//EN"
Official Location: http://www.w3.org/2001/XMLSchema.dtd -->
<!-- Id: structures.dtd,v 1.1 2003/08/28 13:30:52 ht Exp -->
<!-- With the exception of cases with multiple namespace
prefixes for the XSD 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 XSD namespace is almost certainly not
a valid schema document. -->
<!-- The simpleType element and its constituent parts
are defined in XML Schema Definition Language Part 2: Datatypes -->
<!ENTITY % xs-datatypes PUBLIC 'datatypes' 'datatypes.dtd' >
<!ENTITY % p 'xs:'> <!-- can be overridden 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 % defaultOpenContent "%p;defaultOpenContent">
<!ENTITY % complexType "%p;complexType">
<!ENTITY % complexContent "%p;complexContent">
<!ENTITY % openContent "%p;openContent">
<!ENTITY % simpleContent "%p;simpleContent">
<!ENTITY % extension "%p;extension">
<!ENTITY % element "%p;element">
<!ENTITY % alternative "%p;alternative">
<!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 % override "%p;override">
<!ENTITY % notation "%p;notation">
<!ENTITY % assert "%p;assert">
<!-- 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 schema documents -->
<!ENTITY % schemaAttrs ''>
<!ENTITY % defaultOpenContentAttrs ''>
<!ENTITY % complexTypeAttrs ''>
<!ENTITY % complexContentAttrs ''>
<!ENTITY % openContentAttrs ''>
<!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 % assertAttrs ''>
<!ENTITY % includeAttrs ''>
<!ENTITY % importAttrs ''>
<!ENTITY % redefineAttrs ''>
<!ENTITY % overrideAttrs ''>
<!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 % assertions '(%assert;)*'>
<!ENTITY % particleAndAttrs '(%openContent;?, (%mgs; | %group;)?,
%attrDecls;, %assertions;)'>
<!-- 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; | %override; | %annotation;)*,
(%defaultOpenContent;, (%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'
defaultAttributes CDATA #IMPLIED
xpathDefaultNamespace CDATA '##local'
xml:lang CDATA #IMPLIED
%schemaAttrs;>
<!-- Note the xmlns declaration is NOT in the
schema for schema documents,
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. -->
<!ELEMENT %defaultOpenContent; ((%annotation;)?, %any;)>
<!ATTLIST %defaultOpenContent;
appliesToEmpty (true|false) 'false'
mode (interleave|suffix) 'interleave'
id ID #IMPLIED
%defaultOpenContentAttrs;>
<!-- 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'
defaultAttributesApply %boolean; 'true'
%complexTypeAttrs;>
<!-- particleAndAttrs is shorthand for a root type -->
<!-- mixed is disallowed if simpleContent, overridden 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;>
<!ELEMENT %openContent; ((%annotation;)?, (%any;)?)>
<!ATTLIST %openContent;
mode (none|interleave|suffix) 'interleave'
id ID #IMPLIED
%openContentAttrs;>
<!-- 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;)?,
(%alternative;)*,
(%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
targetNamespace %URIref; #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 xs:anyType, i.e. unconstrained -->
<!-- default and fixed are mutually exclusive -->
<!ELEMENT %alternative; ((%annotation;)?,
(%simpleType; | %complexType;)?) >
<!ATTLIST %alternative;
test CDATA #IMPLIED
type %QName; #IMPLIED
xpathDefaultNamespace CDATA #IMPLIED
id ID #IMPLIED >
<!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;↑| %group;| %any;↑)*)>
<!ATTLIST %all;
minOccurs (↑0 | ↑1) #IMPLIED
maxOccurs (↑0 | ↑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 #IMPLIED
notNamespace CDATA #IMPLIED
notQName CDATA ''
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 -->
<!-- notNamespace is interpreted as follows:
##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 #IMPLIED
notNamespace CDATA #IMPLIED
notQName CDATA ''
processContents (skip|lax|strict) 'strict'
id ID #IMPLIED
%anyAttributeAttrs;>
<!-- namespace and notNamespace are 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
targetNamespace %URIref; #IMPLIED
inheritable %URIref; #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; #IMPLIED
ref %QName; #IMPLIED
id ID #IMPLIED
%uniqueAttrs;>
<!ELEMENT %key; ((%annotation;)?, %selector;, (%field;)+)>
<!ATTLIST %key;
name %NCName; #IMPLIED
ref %QName; #IMPLIED
id ID #IMPLIED
%keyAttrs;>
<!ELEMENT %keyref; ((%annotation;)?, %selector;, (%field;)+)>
<!ATTLIST %keyref;
name %NCName; #IMPLIED
ref %QName; #IMPLIED
refer %QName; #IMPLIED
id ID #IMPLIED
%keyrefAttrs;>
<!ELEMENT %selector; ((%annotation;)?)>
<!ATTLIST %selector;
xpath %XPathExpr; #REQUIRED
xpathDefaultNamespace CDATA #IMPLIED
id ID #IMPLIED
%selectorAttrs;>
<!ELEMENT %field; ((%annotation;)?)>
<!ATTLIST %field;
xpath %XPathExpr; #REQUIRED
xpathDefaultNamespace CDATA #IMPLIED
id ID #IMPLIED
%fieldAttrs;>
<!-- co-constraint assertions -->
<!ELEMENT %assert; ((%annotation;)?)>
<!ATTLIST %assert;
test %XPathExpr; #REQUIRED
id ID #IMPLIED
xpathDefaultNamespace CDATA #IMPLIED
%assertAttrs;>
<!-- 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 %override; ((%annotation;)?,
((%simpleType; | %complexType; | %group; | %attributeGroup;) |
%element; | %attribute; | %notation;)*)>
<!ATTLIST %override;
schemaLocation %URIref; #REQUIRED
id ID #IMPLIED
%overrideAttrs;>
<!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' >
