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A Schema for XForms
    A.1 Schema for XML Events

A Schema for XForms

<!-- edited with XML Spy v4.0.1 U (http://www.xmlspy.com) by Micah Dubinko (XForms WG)  -->
<!--$Id: sliceA.html,v 1.3 2002/08/21 14:00:57 henri Exp $-->
<xsd:schema xmlns:xforms="http://www.w3.org/2002/08/xforms/cr" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:ev="http://www.w3.org/2001/xml-events" targetNamespace="http://www.w3.org/2002/08/xforms/cr" elementFormDefault="qualified">
   <!--

15-Aug MJD minimal content model on <help><hint><alert><label>
14-Aug MJD added <rebuild> element
13-Aug MJD added <copy> element (instead of overloading <value>), added to content model of <itemset>
12-Aug MJD moved schema attribute (now list) to <mode>
30-Jul MJD removed @default from <switch>
30-Jul MJD <bind> has @nodeset, not @ref
30-Jul MJD <model> content model has actionGroup, not <action>
30-Jul MJD fixed content model for optionalUIChildren
30-Jul MJD put back <repeat> element (oops), fixed related content models
09-Jul MJD changed attribute on <setfocus> from 'idref' to 'control'
09-Jul MJD added separator attribute to <submission>
21-Jun MJD (typo fix) added common UI attributes to <submit>
19-Jun MJD replace #any content models with explicit allowed content for <group>, <case>, <help>, <hint>, <alert>
19-Jun MJD allow any number of <instance> and <xsd:schema> children under <model>
19-Jun MJD directly use <xsd:schema> element (removing xforms <schema>), schema attribute on <instance>
19-Jun MJD added 'put', 'form-data-post', and 'urlencoded-post' values to <submission method="...">
19-Jun MJD added bindFirst attributes to <trigger>
19-Jun MJD renamed <button> to <trigger>
19-Jun MJD removed <script>
19-Jun MJD made 'appearance' open ended with 'minimal', 'compact', and 'full', and on all form controls; in commonUI
14-May MJD added dayTimeDuration and yearMonthDuration datatypes
8-May MJD added <label> as child of <output>
19-Mar MJD Fixed ref of xml:lang
19-Mar MJD added minOccurs=0 to <schema> and <instance>
02-Apr MJD renamed horzAttrs -> commonAttrs
02-Apr MJD removed xlink schema dependency (now 'src' attribute)
02-Apr MJD attributes and elements renamed for consistentlowercase (See change log for specifics)
02-Apr MJD removed mediaTypeExtension
02-Apr MJD added <filename> and <mediatype> as optional children of <upload>
02-Apr MJD added 'incremental' attribute (w/ defaults) to appropriate form controls
02-Apr MJD removed references to attributes 'class' and 'xml:lang' - to be required of host language
01-Mar MJD added 'model' attribute to <refresh><revalidate><recalculate>
-->
   <!--
Open Issues

Need a datatype for 'list of mediatypes' on mediatype of <upload>
-->
   <xsd:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/xml.xsd">
     <xsd:annotation>
       <xsd:documentation>Get access to xml:lang and friends</xsd:documentation>
     </xsd:annotation>
   </xsd:import>
   <xsd:import namespace="http://www.w3.org/2001/xml-events" schemaLocation="XML-Events-Schema.xsd" />
   <xsd:import namespace="http://www.w3.org/2001/XMLSchema" schemaLocation="http://www.w3.org/2001/XMLSchema.xsd" />
   <!-- 
structural elements
-->
   <xsd:attributeGroup name="commonAttrs">
     <xsd:annotation>
       <xsd:documentation>Attributes for _every_ element in XForms</xsd:documentation>
     </xsd:annotation>
     <xsd:anyAttribute namespace="##other" />
   </xsd:attributeGroup>
   <xsd:element name="model">
     <xsd:complexType>
       <xsd:sequence minOccurs="0" maxOccurs="unbounded">
         <xsd:choice>
           <xsd:element ref="xforms:instance" />
           <xsd:element ref="xsd:schema" />
           <xsd:element ref="xforms:submission" />
           <xsd:element ref="xforms:bind" />
           <xsd:group ref="xforms:actionGroup" />
           <xsd:element ref="xforms:extension" />
         </xsd:choice>
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="functions" type="xforms:QNameList" use="optional" />
       <xsd:attribute name="schema" type="xforms:anyURIList" use="optional" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="instance">
     <xsd:annotation>
       <xsd:documentation>instance container.</xsd:documentation>
     </xsd:annotation>
     <xsd:complexType>
       <xsd:sequence>
         <xsd:any namespace="##any" processContents="skip" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:linkingAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="submission">
     <xsd:annotation>
       <xsd:documentation>submit info container.</xsd:documentation>
     </xsd:annotation>
     <xsd:complexType>
       <xsd:sequence minOccurs="0" maxOccurs="unbounded">
         <xsd:group ref="xforms:actionGroup" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="action" type="xsd:anyURI" use="optional" />
       <xsd:attribute name="method" use="required">
         <xsd:simpleType>
           <xsd:union memberTypes="xforms:QNameButNotNCNAME">
             <xsd:simpleType>
               <xsd:restriction base="xsd:string">
                 <xsd:enumeration value="post" />
                 <xsd:enumeration value="put" />
                 <xsd:enumeration value="get" />
                 <xsd:enumeration value="form-data-post" />
                 <xsd:enumeration value="urlencoded-post" />
               </xsd:restriction>
             </xsd:simpleType>
           </xsd:union>
         </xsd:simpleType>
       </xsd:attribute>
       <xsd:attribute name="version" type="xsd:NMTOKEN" use="optional" />
       <xsd:attribute name="indent" type="xsd:boolean" use="optional" />
       <xsd:attribute name="encoding" type="xsd:string" use="optional" />
       <xsd:attribute name="mediatype" type="xsd:string" use="optional" />
       <xsd:attribute name="omit-xml-declaration" type="xsd:boolean" use="optional" />
       <xsd:attribute name="standalone" type="xsd:boolean" use="optional" />
       <xsd:attribute name="cdata-section-elements" type="xforms:QNameList" use="optional" />
       <xsd:attribute name="replace" use="optional" default="all">
         <xsd:simpleType>
           <xsd:union memberTypes="xforms:QNameButNotNCNAME">
             <xsd:simpleType>
               <xsd:restriction base="xsd:string">
                 <xsd:enumeration value="all" />
                 <xsd:enumeration value="instance" />
                 <xsd:enumeration value="none" />
               </xsd:restriction>
             </xsd:simpleType>
           </xsd:union>
         </xsd:simpleType>
       </xsd:attribute>
       <xsd:attribute name="separator" use="optional" default=";">
         <xsd:simpleType>
           <xsd:restriction base="xsd:string">
             <xsd:enumeration value=";" />
             <xsd:enumeration value="&amp;" />
           </xsd:restriction>
         </xsd:simpleType>
       </xsd:attribute>
     </xsd:complexType>
   </xsd:element>
   <xsd:attributeGroup name="linkingAttributes">
     <xsd:attribute name="src" type="xsd:anyURI" />
   </xsd:attributeGroup>
   <xsd:element name="bind">
     <xsd:annotation>
       <xsd:documentation>Definition of bind container.</xsd:documentation>
     </xsd:annotation>
     <xsd:complexType>
       <xsd:sequence minOccurs="0" maxOccurs="unbounded">
         <xsd:element ref="xforms:bind" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="nodeset" type="xsd:string" use="optional" />
       <xsd:attribute name="type" type="xsd:QName" use="optional" />
       <xsd:attribute name="readonly" type="xsd:string" use="optional" />
       <xsd:attribute name="required" type="xsd:string" use="optional" />
       <xsd:attribute name="relevant" type="xsd:string" use="optional" />
       <xsd:attribute name="constraint" type="xsd:string" use="optional" />
       <xsd:attribute name="calculate" type="xsd:string" use="optional" />
       <xsd:attribute name="maxOccurs" use="optional">
         <xsd:simpleType>
           <xsd:union memberTypes="xsd:nonNegativeInteger">
             <xsd:simpleType>
               <xsd:restriction base="xsd:string">
                 <xsd:enumeration value="unbounded" />
               </xsd:restriction>
             </xsd:simpleType>
           </xsd:union>
         </xsd:simpleType>
       </xsd:attribute>
       <xsd:attribute name="minOccurs" type="xsd:nonNegativeInteger" use="optional" />
       <xsd:attribute name="p3ptype" type="xsd:string" use="optional" />
     </xsd:complexType>
   </xsd:element>
   <!--
User Interface form controls
-->
   <xsd:group name="formControls">
     <xsd:choice>
       <xsd:element ref="xforms:input" />
       <xsd:element ref="xforms:textarea" />
       <xsd:element ref="xforms:secret" />
       <xsd:element ref="xforms:output" />
       <xsd:element ref="xforms:upload" />
       <xsd:element ref="xforms:select1" />
       <xsd:element ref="xforms:select" />
       <xsd:element ref="xforms:range" />
       <xsd:element ref="xforms:submit" />
       <xsd:element ref="xforms:trigger" />
     </xsd:choice>
   </xsd:group>
   <xsd:attributeGroup name="bindFirstAttributes">
     <xsd:attribute name="model" type="xsd:IDREF" use="optional" />
     <xsd:attribute name="ref" type="xsd:string" use="optional" />
     <xsd:attribute name="bind" type="xsd:IDREF" use="optional" />
   </xsd:attributeGroup>
   <xsd:attributeGroup name="bindAllAttributes">
     <xsd:attribute name="model" type="xsd:IDREF" use="optional" />
     <xsd:attribute name="nodeset" type="xsd:string" use="optional" />
     <xsd:attribute name="bind" type="xsd:IDREF" use="optional" />
   </xsd:attributeGroup>
   <xsd:attributeGroup name="commonUIAttributes">
     <xsd:attribute name="accesskey" type="xsd:string" use="optional" />
     <xsd:attribute name="navindex" type="xsd:nonNegativeInteger" use="optional" />
     <xsd:attribute name="appearance" type="xforms:appearanceType" use="optional" />
   </xsd:attributeGroup>
   <xsd:element name="label">
     <xsd:complexType mixed="true">
       <xsd:sequence minOccurs="0" maxOccurs="unbounded">
         <xsd:choice>
           <xsd:element ref="xforms:output" />
           <!-- containing document language to add additional allowed content here  -->
         </xsd:choice>
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attributeGroup ref="xforms:linkingAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="hint">
     <xsd:complexType mixed="true">
       <xsd:sequence minOccurs="0" maxOccurs="unbounded">
         <xsd:choice>
           <xsd:element ref="xforms:output" />
           <!-- containing document language to add additional allowed content here  -->
         </xsd:choice>
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attributeGroup ref="xforms:linkingAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="help">
     <xsd:complexType mixed="true">
       <xsd:sequence minOccurs="0" maxOccurs="unbounded">
         <xsd:choice>
           <xsd:element ref="xforms:output" />
           <!-- containing document language to add additional allowed content here  -->
         </xsd:choice>
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attributeGroup ref="xforms:linkingAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="alert">
     <xsd:complexType mixed="true">
       <xsd:sequence minOccurs="0" maxOccurs="unbounded">
         <xsd:choice>
           <xsd:element ref="xforms:output" />
           <!-- containing document language to add additional allowed content here  -->
         </xsd:choice>
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attributeGroup ref="xforms:linkingAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="extension">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:any namespace="##other" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="choices">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" minOccurs="0" />
         <xsd:sequence maxOccurs="unbounded">
           <xsd:choice>
             <xsd:element ref="xforms:choices" />
             <xsd:element ref="xforms:item" />
             <xsd:element ref="xforms:itemset" />
           </xsd:choice>
         </xsd:sequence>
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="value">
     <xsd:complexType mixed="true">
       <xsd:sequence>
         <xsd:any namespace="##any" processContents="skip" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="item">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:element ref="xforms:value" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="itemset">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:choice>
           <xsd:element ref="xforms:value" />
           <xsd:element ref="xforms:copy" />
         </xsd:choice>
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindAllAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="copy">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="filename">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="mediatype">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:group name="optionalUIChildren">
     <xsd:sequence>
       <xsd:choice minOccurs="0" maxOccurs="unbounded">
         <xsd:element ref="xforms:help" />
         <xsd:element ref="xforms:hint" />
         <xsd:element ref="xforms:alert" />
         <xsd:group ref="xforms:actionGroup" />
         <xsd:element ref="xforms:extension" />
       </xsd:choice>
     </xsd:sequence>
   </xsd:group>
   <xsd:element name="input">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attribute name="inputmode" type="xsd:string" use="optional" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attribute name="incremental" type="xsd:boolean" use="optional" default="false" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="textarea">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attribute name="inputmode" type="xsd:string" use="optional" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attribute name="incremental" type="xsd:boolean" use="optional" default="false" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="secret">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attribute name="inputmode" type="xsd:string" use="optional" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attribute name="incremental" type="xsd:boolean" use="optional" default="false" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="upload">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:element ref="xforms:filename" minOccurs="0" />
         <xsd:element ref="xforms:mediatype" minOccurs="0" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attribute name="mediatype" type="xsd:string" use="optional" />
       <xsd:attribute name="incremental" type="xsd:boolean" use="optional" default="false" />
     </xsd:complexType>
   </xsd:element>
   <xsd:group name="listChoices">
     <xsd:sequence>
       <xsd:choice>
         <xsd:element ref="xforms:item" />
         <xsd:element ref="xforms:itemset" />
         <xsd:element ref="xforms:choices" />
       </xsd:choice>
     </xsd:sequence>
   </xsd:group>
   <xsd:element name="select1">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:group ref="xforms:listChoices" maxOccurs="unbounded" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attribute name="selection" use="optional" default="closed">
         <xsd:simpleType>
           <xsd:restriction base="xsd:string">
             <xsd:enumeration value="open" />
             <xsd:enumeration value="closed" />
           </xsd:restriction>
         </xsd:simpleType>
       </xsd:attribute>
       <xsd:attribute name="incremental" type="xsd:boolean" use="optional" default="true" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="select">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:group ref="xforms:listChoices" maxOccurs="unbounded" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attribute name="selection" use="optional" default="closed">
         <xsd:simpleType>
           <xsd:restriction base="xsd:string">
             <xsd:enumeration value="open" />
             <xsd:enumeration value="closed" />
           </xsd:restriction>
         </xsd:simpleType>
       </xsd:attribute>
       <xsd:attribute name="incremental" type="xsd:boolean" use="optional" default="true" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="range">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attribute name="start" type="xsd:string" use="optional" />
       <xsd:attribute name="end" type="xsd:string" use="optional" />
       <xsd:attribute name="step" type="xsd:string" use="optional" />
       <xsd:attribute name="incremental" type="xsd:boolean" use="optional" default="false" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="trigger">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="output">
     <xsd:complexType>
       <xsd:sequence minOccurs="0">
         <xsd:element ref="xforms:label" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="ref" type="xsd:string" use="optional" />
       <xsd:attribute name="model" type="xsd:string" use="optional" />
       <xsd:attribute name="format" type="xsd:string" use="optional" />
       <xsd:attribute name="appearance" type="xforms:appearanceType" use="optional" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="submit">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" />
         <xsd:group ref="xforms:optionalUIChildren" minOccurs="0" maxOccurs="unbounded" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="submission" type="xsd:IDREF" use="required" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
     </xsd:complexType>
   </xsd:element>
   <!--
XForms Actions
-->
   <xsd:attributeGroup name="XMLEvents">
     <xsd:attribute ref="ev:event" />
     <xsd:attribute ref="ev:observer" />
     <xsd:attribute ref="ev:target" />
     <xsd:attribute ref="ev:handler" />
     <xsd:attribute ref="ev:phase" />
     <xsd:attribute ref="ev:propagate" />
     <xsd:attribute ref="ev:defaultAction" />
   </xsd:attributeGroup>
   <xsd:group name="actionGroup">
     <xsd:choice>
       <xsd:element ref="xforms:action" />
       <xsd:group ref="xforms:actions" />
     </xsd:choice>
   </xsd:group>
   <xsd:element name="action">
     <xsd:complexType>
       <xsd:sequence maxOccurs="unbounded">
         <xsd:group ref="xforms:actions" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:group name="actions">
     <xsd:choice>
       <xsd:element ref="xforms:dispatch" />
       <xsd:element ref="xforms:rebuild" />
       <xsd:element ref="xforms:recalculate" />
       <xsd:element ref="xforms:revalidate" />
       <xsd:element ref="xforms:refresh" />
       <xsd:element ref="xforms:setfocus" />
       <xsd:element ref="xforms:load" />
       <xsd:element ref="xforms:setvalue" />
       <xsd:element ref="xforms:send" />
       <xsd:element ref="xforms:reset" />
       <xsd:element ref="xforms:insert" />
       <xsd:element ref="xforms:delete" />
       <xsd:element ref="xforms:setindex" />
       <xsd:element ref="xforms:toggle" />
       <xsd:element ref="xforms:message" />
     </xsd:choice>
   </xsd:group>
   <xsd:element name="dispatch">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="name" type="xsd:NMTOKEN" use="required" />
       <xsd:attribute name="target" type="xsd:IDREF" use="required" />
       <xsd:attribute name="bubbles" type="xsd:boolean" use="optional" default="true" />
       <xsd:attribute name="cancelable" type="xsd:boolean" use="optional" default="true" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="rebuild">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="model" type="xsd:IDREF" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="revalidate">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="model" type="xsd:IDREF" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="recalculate">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="model" type="xsd:IDREF" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="refresh">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="model" type="xsd:IDREF" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="setfocus">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="control" type="xsd:IDREF" use="required" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="load">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attribute name="src" type="xsd:anyURI" use="required" />
       <xsd:attribute name="show" use="optional" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="setvalue">
     <xsd:complexType>
       <xsd:simpleContent>
         <xsd:extension base="xsd:string">
           <xsd:attributeGroup ref="xforms:commonAttrs" />
           <xsd:attribute name="id" type="xsd:ID" use="optional" />
           <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
           <xsd:attribute name="value" type="xsd:string" />
           <xsd:attributeGroup ref="xforms:XMLEvents" />
         </xsd:extension>
       </xsd:simpleContent>
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="send">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="submission" type="xsd:IDREF" use="optional" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="reset">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
       <xsd:attribute name="model" type="xsd:IDREF" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="insert">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindAllAttributes" />
       <xsd:attribute name="at" type="xsd:string" use="required" />
       <xsd:attribute name="position" use="required">
         <xsd:simpleType>
           <xsd:restriction base="xsd:string">
             <xsd:enumeration value="before" />
             <xsd:enumeration value="after" />
           </xsd:restriction>
         </xsd:simpleType>
       </xsd:attribute>
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="delete">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindAllAttributes" />
       <xsd:attribute name="at" type="xsd:string" use="required" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="setindex">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="repeat" type="xsd:IDREF" use="required" />
       <xsd:attribute name="index" type="xsd:string" use="required" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="toggle">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attribute name="case" type="xsd:IDREF" use="required" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="message">
     <xsd:complexType>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attribute name="level" type="xsd:string" use="required" />
       <xsd:attributeGroup ref="xforms:XMLEvents" />
     </xsd:complexType>
   </xsd:element>
   <!--
Advanced User Interface
-->
   <xsd:attribute name="repeat-nodeset" type="xsd:string" />
   <xsd:attribute name="repeat-model" type="xsd:IDREF" />
   <xsd:attribute name="repeat-bind" type="xsd:IDREF" />
   <xsd:attribute name="repeat-startindex" type="xsd:positiveInteger" />
   <xsd:attribute name="repeat-number" type="xsd:nonNegativeInteger" />
   <xsd:element name="repeat">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:sequence minOccurs="0" maxOccurs="unbounded">
           <xsd:choice>
             <xsd:group ref="xforms:formControls" />
             <xsd:element ref="xforms:group" />
             <xsd:element ref="xforms:repeat" />
             <!-- containing document language to add additional allowed content here  -->
           </xsd:choice>
         </xsd:sequence>
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindAllAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
       <xsd:attribute name="startindex" type="xsd:positiveInteger" />
       <xsd:attribute name="number" type="xsd:nonNegativeInteger" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="group">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" minOccurs="0" />
         <xsd:sequence minOccurs="0" maxOccurs="unbounded">
           <xsd:choice>
             <xsd:group ref="xforms:formControls" />
             <xsd:element ref="xforms:group" />
             <xsd:element ref="xforms:switch" />
             <xsd:element ref="xforms:repeat" />
             <!-- containing document language to add additional allowed content here  -->
           </xsd:choice>
         </xsd:sequence>
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="optional" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="switch">
     <xsd:complexType>
       <xsd:sequence maxOccurs="unbounded">
         <xsd:element ref="xforms:case" />
       </xsd:sequence>
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" />
       <xsd:attributeGroup ref="xforms:bindFirstAttributes" />
       <xsd:attributeGroup ref="xforms:commonUIAttributes" />
     </xsd:complexType>
   </xsd:element>
   <xsd:element name="case">
     <xsd:complexType>
       <xsd:sequence>
         <xsd:element ref="xforms:label" minOccurs="0" />
         <xsd:sequence maxOccurs="unbounded">
           <xsd:choice>
             <xsd:group ref="xforms:formControls" />
             <xsd:element ref="xforms:group" />
             <xsd:element ref="xforms:switch" />
             <xsd:element ref="xforms:repeat" />
             <!-- containing document language to add additional allowed content here  -->
           </xsd:choice>
         </xsd:sequence>
       </xsd:sequence>
       <xsd:attribute name="selected" type="xsd:boolean" use="optional" />
       <xsd:attributeGroup ref="xforms:commonAttrs" />
       <xsd:attribute name="id" type="xsd:ID" use="required" />
     </xsd:complexType>
   </xsd:element>
   <!--
New simpleTypes
-->
   <xsd:simpleType name="QNameList">
     <xsd:list itemType="xsd:QName" />
   </xsd:simpleType>
   <xsd:simpleType name="anyURIList">
     <xsd:list itemType="xsd:anyURI" />
   </xsd:simpleType>
   <xsd:simpleType name="QNameButNotNCNAME">
     <xsd:restriction base="xsd:QName">
       <xsd:pattern value="[^:]+:[^:]+" />
     </xsd:restriction>
   </xsd:simpleType>
   <xsd:simpleType name="appearanceType">
     <xsd:union memberTypes="xforms:QNameButNotNCNAME">
       <xsd:simpleType>
         <xsd:restriction base="xsd:string">
           <xsd:enumeration value="full" />
           <xsd:enumeration value="compact" />
           <xsd:enumeration value="minimal" />
         </xsd:restriction>
       </xsd:simpleType>
     </xsd:union>
   </xsd:simpleType>
   <xsd:simpleType name="listItem">
     <xsd:restriction base="xsd:string">
       <xsd:pattern value="\S+" />
     </xsd:restriction>
   </xsd:simpleType>
   <xsd:simpleType name="listItems">
     <xsd:list itemType="xforms:listItem" />
   </xsd:simpleType>
   <xsd:simpleType name="dayTimeDuration">
     <xsd:restriction base="xsd:duration">
       <xsd:pattern value="[-]?P((\p{Nd}D(T\p{Nd}+(H(\p{Nd}+M(\p{Nd}+([.]\p{Nd}+)?S)?)?|M(\p{Nd}+([.]\p{Nd}+)?S)?|(([.]\p{Nd}+)?S)))?)|T\p{Nd}+(H(\p{Nd}+M(\p{Nd}+([.]\p{Nd}+)?S)?)?|M(\p{Nd}+([.]\p{Nd}+)?S)?|(([.]\p{Nd}+)?S)))" />
     </xsd:restriction>
   </xsd:simpleType>
   <xsd:simpleType name="yearMonthDuration">
     <xsd:restriction base="xsd:duration">
       <xsd:pattern value="[-]?P\p{Nd}+(Y(\p{Nd}+M)?|M)" />
     </xsd:restriction>
   </xsd:simpleType>
</xsd:schema>

A.1 Schema for XML Events

This schema is not normative with respect to XML Events, although it is considered a normative part of the XForms definition.

<xs:schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ev="http://www.w3.org/2001/xml-events" targetNamespace="http://www.w3.org/2001/xml-events" elementFormDefault="unqualified" attributeFormDefault="unqualified" blockDefault="#all" finalDefault="#all" version="1.1" xsi:schemaLocation="http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema.xsd">
   <!--

-->
   <xs:annotation>
     <xs:documentation>
This is the XML Schema for XML Events global attributes
      $Id: sliceA.html,v 1.3 2002/08/21 14:00:57 henri Exp $
     </xs:documentation>
     <xs:documentation source="xml-events-copyright-1.xsd" />
   </xs:annotation>
   <!--

-->
   <xs:annotation>
     <xs:documentation>
XML Event Attributes
        
            These "global" event attributes are defined in "Attaching
            Attributes Directly to the Observer Element" of the XML
            Events specification.
         </xs:documentation>
   </xs:annotation>
   <!--

-->
   <xs:attribute name="event" type="xs:NMTOKEN" />
   <xs:attribute name="observer" type="xs:IDREF" />
   <xs:attribute name="target" type="xs:IDREF" />
   <xs:attribute name="handler" type="xs:anyURI" />
   <xs:attribute name="phase" default="default">
     <xs:simpleType>
       <xs:restriction base="xs:NMTOKEN">
         <xs:enumeration value="capture" />
         <xs:enumeration value="default" />
       </xs:restriction>
     </xs:simpleType>
   </xs:attribute>
   <xs:attribute name="propagate" default="continue">
     <xs:simpleType>
       <xs:restriction base="xs:NMTOKEN">
         <xs:enumeration value="stop" />
         <xs:enumeration value="continue" />
       </xs:restriction>
     </xs:simpleType>
   </xs:attribute>
   <xs:attribute name="defaultAction" default="perform">
     <xs:simpleType>
       <xs:restriction base="xs:NMTOKEN">
         <xs:enumeration value="cancel" />
         <xs:enumeration value="perform" />
       </xs:restriction>
     </xs:simpleType>
   </xs:attribute>
   <!--

-->
   <xs:attributeGroup name="XmlEvents.attlist">
     <xs:attribute ref="ev:event" />
     <xs:attribute ref="ev:observer" />
     <xs:attribute ref="ev:target" />
     <xs:attribute ref="ev:handler" />
     <xs:attribute ref="ev:phase" />
     <xs:attribute ref="ev:propagate" />
     <xs:attribute ref="ev:defaultAction" />
   </xs:attributeGroup>
</xs:schema>
   
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