From e672bbd40f2c77ac21aee6d279fd95261b827f99 Mon Sep 17 00:00:00 2001
From: sb <sb>
Date: Wed, 9 Jan 2008 15:42:32 +0000
Subject: [PATCH] Schema (i) is now valid (ii) allows HTML in head, top and
 foot

---
 schemas/adl-0.xsd | 832 ++++++++++++++++++++++++----------------------
 1 file changed, 426 insertions(+), 406 deletions(-)

diff --git a/schemas/adl-0.xsd b/schemas/adl-0.xsd
index f374472..cf9ef7c 100755
--- a/schemas/adl-0.xsd
+++ b/schemas/adl-0.xsd
@@ -1,41 +1,42 @@
 <schema
-  xmlns='http://www.w3.org/2000/10/XMLSchema'
-  targetNamespace='http://www.cygnets.co.uk/schemas/adl/'
-  xmlns:adl='http://www.cygnets.co.uk/schemas/adl/'>
+  xmlns='http://www.w3.org/2001/XMLSchema'
+  targetNamespace='http://www.cygnets.co.uk/schemas/adl-0.xsd'
+  xmlns:adl='http://www.cygnets.co.uk/schemas/adl-0.xsd'
+  xmlns:html='http://www.w3.org/1999/xhtml'>
 
-    <!--  ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::  -->
-    <!--						    											                                  -->
-    <!--	adl-0.xsd    			    										                            -->
-    <!--																		                                    -->
-    <!--	Purpose:															                                -->
-    <!--	XML Schema Application Description Language. Note that this     -->
-    <!--        is experimental; the DTD is still normative at this stage       -->
-    <!--        This revision autoconverted using dtd2xsd.pl from               -->
-    <!--        adl-0.dtd revision 1.2                                          -->
-    <!--																		                                    -->
-    <!--	Author:		Simon Brooke <simon@cygnets.co.uk>			  	                -->
-    <!--	Created:	9th January 2008										                        -->
-    <!--        $Revision: 1.1 $
-    <!--	Copyright:	(c) 2008 Cygnet Solutions Ltd						                  -->
-    <!--      							      									                            -->
-    <!--  ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::  -->
+  <!--  ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::  -->
+  <!--						    											                                  -->
+  <!--	adl-0.xsd    			    										                            -->
+  <!--																		                                    -->
+  <!--	Purpose:															                                -->
+  <!--	XML Schema for Application Description Language. Note that this       -->
+  <!--        is experimental; the DTD is still normative at this stage       -->
+  <!--        This revision autoconverted using dtd2xsd.pl from               -->
+  <!--        adl-0.dtd revision 1.2                                          -->
+  <!--																		                                    -->
+  <!--	Author:		Simon Brooke <simon@cygnets.co.uk>			  	                -->
+  <!--	Created:	9th January 2008										                        -->
+  <!--  $Revision: 1.2 $                                                      -->
+  <!--	Copyright:	(c) 2008 Cygnet Solutions Ltd						                  -->
+  <!--      							      									                            -->
+  <!--  ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::  -->
 
-<!-- the application that the document describes: required top level element -->
- <element name='application'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:content' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:definition' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:group' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:entity' minOccurs='0' maxOccurs='unbounded'/>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='version' type='string' use='optional'/>
-  </complexType>
- </element>
+  <!-- the application that the document describes: required top level element -->
+  <element name='application'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:content' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:definition' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:group' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:entity' minOccurs='0' maxOccurs='unbounded'/>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='version' type='string' use='optional'/>
+    </complexType>
+  </element>
 
-    <!-- 
+  <!-- 
 	the definition of a defined type. At this stage a defined type is either
 	a string		in which case it must have size and pattern, or
 	a scalar		in which case it must have minimum and/or maximum
@@ -51,49 +52,49 @@
   minimum:  the minimum value for this type (if base type is scalar)
   maximum:  the maximum value for this type (if base type is scalar)
   -->
- <element name='definition'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:help' minOccurs='0' maxOccurs='unbounded'/>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='type' use='required'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='string'/>
-      <enumeration value='integer'/>
-      <enumeration value='real'/>
-      <enumeration value='money'/>
-      <enumeration value='date'/>
-      <enumeration value='time'/>
-      <enumeration value='timestamp'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-   <attribute name='size' type='string' use='optional'/>
-   <attribute name='pattern' type='string' use='optional'/>
-   <attribute name='minimum' type='string' use='optional'/>
-   <attribute name='maximum' type='string' use='optional'/>
-  </complexType>
- </element>
+  <element name='definition'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:help' minOccurs='0' maxOccurs='unbounded'/>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='type' use='required'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='string'/>
+            <enumeration value='integer'/>
+            <enumeration value='real'/>
+            <enumeration value='money'/>
+            <enumeration value='date'/>
+            <enumeration value='time'/>
+            <enumeration value='timestamp'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+      <attribute name='size' type='string' use='optional'/>
+      <attribute name='pattern' type='string' use='optional'/>
+      <attribute name='minimum' type='string' use='optional'/>
+      <attribute name='maximum' type='string' use='optional'/>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
   a group of people with similar permissions to one another 
   name: the name of this group
   parent: the name of a group of which this group is subset
   -->
- <element name='group'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='parent' type='string' use='optional'/>
-  </complexType>
- </element>
+  <element name='group'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='parent' type='string' use='optional'/>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	an entity which has properties and relationships; maps onto a database
 	table or a Java serialisable class - or, of course, various other things
   
@@ -103,35 +104,35 @@
                 the present implementation assumes all primary keys will be 
                 integers. This needs to be fixed!]
 -->
- <element name='entity'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:content' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:property' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:permission' minOccurs='0' maxOccurs='unbounded'/>
-    <choice minOccurs='0' maxOccurs='unbounded'>
-     <element ref='adl:form'/>
-     <element ref='adl:page'/>
-     <element ref='adl:list'/>
-    </choice>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='natural-key' type='string' use='optional'/>
-  </complexType>
- </element>
+  <element name='entity'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:content' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:property' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:permission' minOccurs='0' maxOccurs='unbounded'/>
+        <choice minOccurs='0' maxOccurs='unbounded'>
+          <element ref='adl:form'/>
+          <element ref='adl:page'/>
+          <element ref='adl:list'/>
+        </choice>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='natural-key' type='string' use='optional'/>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
   contains documentation on the element which immediately contains it. TODO:
   should HTML markup within a documentation element be allowed? If so, are
   there restrictions?
 -->
- <element name='documentation'>
-  <complexType mixed='true'>
-  </complexType>
- </element>
+  <element name='documentation'>
+    <complexType mixed='true'>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	a property (field) of an entity (table) 
 	
 	name:			  the name of this property.
@@ -158,131 +159,131 @@
               database but must be computed (manually written code must
               be provided to support this)
 -->
- <element name='property'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:permission' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:option' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:prompt' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:help' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:ifmissing' minOccurs='0' maxOccurs='unbounded'/>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='type' use='required'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='entity'/>
-      <enumeration value='link'/>
-      <enumeration value='list'/>
-      <enumeration value='defined'/>
-      <enumeration value='string'/>
-      <enumeration value='integer'/>
-      <enumeration value='real'/>
-      <enumeration value='money'/>
-      <enumeration value='date'/>
-      <enumeration value='time'/>
-      <enumeration value='timestamp'/>
-      <enumeration value='boolean'/>
-      <enumeration value='text'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-   <attribute name='default' type='string' use='optional'/>
-   <attribute name='definition' type='string' use='optional'/>
-   <attribute name='distinct' use='optional'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='none'/>
-      <enumeration value='all'/>
-      <enumeration value='user'/>
-      <enumeration value='system'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-   <attribute name='entity' type='string' use='optional'/>
-   <attribute name='farkey' type='string' use='optional'/>
-   <attribute name='required' use='optional'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='true'/>
-      <enumeration value='false'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-   <attribute name='size' type='string' use='optional'/>
-   <attribute name='concrete' use='optional'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='true'/>
-      <enumeration value='false'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-  </complexType>
- </element>
+  <element name='property'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:permission' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:option' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:prompt' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:help' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:ifmissing' minOccurs='0' maxOccurs='unbounded'/>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='type' use='required'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='entity'/>
+            <enumeration value='link'/>
+            <enumeration value='list'/>
+            <enumeration value='defined'/>
+            <enumeration value='string'/>
+            <enumeration value='integer'/>
+            <enumeration value='real'/>
+            <enumeration value='money'/>
+            <enumeration value='date'/>
+            <enumeration value='time'/>
+            <enumeration value='timestamp'/>
+            <enumeration value='boolean'/>
+            <enumeration value='text'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+      <attribute name='default' type='string' use='optional'/>
+      <attribute name='definition' type='string' use='optional'/>
+      <attribute name='distinct' use='optional'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='none'/>
+            <enumeration value='all'/>
+            <enumeration value='user'/>
+            <enumeration value='system'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+      <attribute name='entity' type='string' use='optional'/>
+      <attribute name='farkey' type='string' use='optional'/>
+      <attribute name='required' use='optional'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='true'/>
+            <enumeration value='false'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+      <attribute name='size' type='string' use='optional'/>
+      <attribute name='concrete' use='optional'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='true'/>
+            <enumeration value='false'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	one of an explicit list of optional values a property may have 
 	NOTE: whether options get encoded at application layer or at database layer 
 	is UNDEFINED; either behaviour is correct. If at database layer it's also 
 	UNDEFINED whether they're encoded as a single reference data table or as 
 	separate reference data tables for each property.
 -->
- <element name='option'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:prompt' minOccurs='0' maxOccurs='unbounded'/>
-   </sequence>
-   <attribute name='value' type='string' use='optional'/>
-  </complexType>
- </element>
+  <element name='option'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:prompt' minOccurs='0' maxOccurs='unbounded'/>
+      </sequence>
+      <attribute name='value' type='string' use='optional'/>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	permissions policy on an entity, a page, form, list or field 
 	
 	group: 			the group to which permission is granted
 	permission:		the permission which is granted to that group
 -->
- <element name='permission'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-   </sequence>
-   <attribute name='group' type='string' use='required'/>
-   <attribute name='permission' use='required'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='none'/>
-      <enumeration value='read'/>
-      <enumeration value='insert'/>
-      <enumeration value='noedit'/>
-      <enumeration value='edit'/>
-      <enumeration value='all'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-  </complexType>
- </element>
+  <element name='permission'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+      </sequence>
+      <attribute name='group' type='string' use='required'/>
+      <attribute name='permission' use='required'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='none'/>
+            <enumeration value='read'/>
+            <enumeration value='insert'/>
+            <enumeration value='noedit'/>
+            <enumeration value='edit'/>
+            <enumeration value='all'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+    </complexType>
+  </element>
 
-<!--
+  <!--
   pragmatic advice to generators of lists and forms, in the form of 
   name/value pairs which may contain anything. Over time some pragmas
   will become 'well known', but the whole point of having a pragma
   architecture is that it is extensible.
 -->
- <element name='pragma'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='value' type='string' use='required'/>
-  </complexType>
- </element>
+  <element name='pragma'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='value' type='string' use='required'/>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	a prompt for a property or field; used as the prompt text for a widget 
 	which edits it. Typically there will be only one of these per property
   per locale; if there are more than one all those matching the locale may
@@ -291,17 +292,17 @@
 	prompt:			the prompt to use
 	locale:			the locale in which to prefer this prompt	
 -->
- <element name='prompt'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-   </sequence>
-   <attribute name='prompt' type='string' use='required'/>
-   <attribute name='locale' type='string' use='required'/>
-  </complexType>
- </element>
+  <element name='prompt'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+      </sequence>
+      <attribute name='prompt' type='string' use='required'/>
+      <attribute name='locale' type='string' use='required'/>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	helptext about a property of an entity, or a field of a page, form or 
 	list, or a definition. Typically there will be only one of these per property
   per locale; if there are more than one all those matching the locale may
@@ -309,122 +310,122 @@
 
 	locale:			the locale in which to prefer this prompt	
 -->
- <element name='help'>
-  <complexType mixed='true'>
-   <attribute name='locale' type='string' use='required'/>
-  </complexType>
- </element>
+  <element name='help'>
+    <complexType mixed='true'>
+      <attribute name='locale' type='string' use='required'/>
+    </complexType>
+  </element>
 
- <!--
+  <!--
   helpful text to be shown if a property value is missing, typically when 
   a form is submitted. Typically there will be only one of these per property
   per locale; if there are more than one all those matching the locale may
   be concatenated, or just one may be used. Later there may be more sophisticated
   behaviour here.
 -->
-<element name='ifmissing'>
-  <complexType mixed='true'>
-   <attribute name='locale' type='string' use='required'/>
-  </complexType>
- </element>
+  <element name='ifmissing'>
+    <complexType mixed='true'>
+      <attribute name='locale' type='string' use='required'/>
+    </complexType>
+  </element>
 
-<!-- a form through which an entity may be added or edited -->
- <element name='form'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <choice minOccurs='0' maxOccurs='unbounded'>
-     <element ref='adl:head'/>
-     <element ref='adl:top'/>
-     <element ref='adl:foot'/>
-     <element ref='adl:field'/>
-     <element ref='adl:fieldgroup'/>
-     <element ref='adl:auxlist'/>
-     <element ref='adl:verb'/>
-     <element ref='adl:permission'/>
-     <element ref='adl:pragma'/>
-    </choice>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='properties' use='required'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='all'/>
-      <enumeration value='user-distict'/>
-      <enumeration value='listed'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-  </complexType>
- </element>
+  <!-- a form through which an entity may be added or edited -->
+  <element name='form'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <choice minOccurs='0' maxOccurs='unbounded'>
+          <element ref='adl:head'/>
+          <element ref='adl:top'/>
+          <element ref='adl:foot'/>
+          <element ref='adl:field'/>
+          <element ref='adl:fieldgroup'/>
+          <element ref='adl:auxlist'/>
+          <element ref='adl:verb'/>
+          <element ref='adl:permission'/>
+          <element ref='adl:pragma'/>
+        </choice>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='properties' use='required'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='all'/>
+            <enumeration value='user-distict'/>
+            <enumeration value='listed'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+    </complexType>
+  </element>
 
-<!-- a page on which an entity may be displayed -->
- <element name='page'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <choice minOccurs='0' maxOccurs='unbounded'>
-     <element ref='adl:head'/>
-     <element ref='adl:top'/>
-     <element ref='adl:foot'/>
-     <element ref='adl:field'/>
-     <element ref='adl:fieldgroup'/>
-     <element ref='adl:auxlist'/>
-     <element ref='adl:verb'/>
-     <element ref='adl:permission'/>
-     <element ref='adl:pragma'/>
-    </choice>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='properties' use='required'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='all'/>
-      <enumeration value='user-distict'/>
-      <enumeration value='listed'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-  </complexType>
- </element>
+  <!-- a page on which an entity may be displayed -->
+  <element name='page'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <choice minOccurs='0' maxOccurs='unbounded'>
+          <element ref='adl:head'/>
+          <element ref='adl:top'/>
+          <element ref='adl:foot'/>
+          <element ref='adl:field'/>
+          <element ref='adl:fieldgroup'/>
+          <element ref='adl:auxlist'/>
+          <element ref='adl:verb'/>
+          <element ref='adl:permission'/>
+          <element ref='adl:pragma'/>
+        </choice>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='properties' use='required'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='all'/>
+            <enumeration value='user-distict'/>
+            <enumeration value='listed'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	a list on which entities of a given type are listed
 
 	onselect:		name of form/page/list to go to when
 					    a selection is made from the list 
 -->
- <element name='list'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <choice minOccurs='0' maxOccurs='unbounded'>
-     <element ref='adl:head'/>
-     <element ref='adl:top'/>
-     <element ref='adl:foot'/>
-     <element ref='adl:field'/>
-     <element ref='adl:fieldgroup'/>
-     <element ref='adl:auxlist'/>
-     <element ref='adl:verb'/>
-     <element ref='adl:permission'/>
-     <element ref='adl:pragma'/>
-    </choice>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-   <attribute name='properties' use='required'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='all'/>
-      <enumeration value='user-distict'/>
-      <enumeration value='listed'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-   <attribute name='onselect' type='string' use='optional'/>
-  </complexType>
- </element>
+  <element name='list'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <choice minOccurs='0' maxOccurs='unbounded'>
+          <element ref='adl:head'/>
+          <element ref='adl:top'/>
+          <element ref='adl:foot'/>
+          <element ref='adl:field'/>
+          <element ref='adl:fieldgroup'/>
+          <element ref='adl:auxlist'/>
+          <element ref='adl:verb'/>
+          <element ref='adl:permission'/>
+          <element ref='adl:pragma'/>
+        </choice>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+      <attribute name='properties' use='required'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='all'/>
+            <enumeration value='user-distict'/>
+            <enumeration value='listed'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+      <attribute name='onselect' type='string' use='optional'/>
+    </complexType>
+  </element>
 
-<!--
+  <!--
   a subsidiary list, on which entities related to primary
   entities in the enclosing page or list are listed
   
@@ -435,128 +436,147 @@
   canadd:     true if the user should be able to add records
               to this list
   -->
- <element name='auxlist'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <choice minOccurs='0' maxOccurs='unbounded'>
-     <element ref='adl:prompt'/>
-     <element ref='adl:field'/>
-     <element ref='adl:fieldgroup'/>
-     <element ref='adl:auxlist'/>
-     <element ref='adl:verb'/>
-    </choice>
-   </sequence>
-   <attribute name='property' type='string' use='required'/>
-   <attribute name='onselect' type='string' use='optional'/>
-   <attribute name='canadd' use='optional'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='true'/>
-      <enumeration value='false'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-  </complexType>
- </element>
+  <element name='auxlist'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <choice minOccurs='0' maxOccurs='unbounded'>
+          <element ref='adl:prompt'/>
+          <element ref='adl:field'/>
+          <element ref='adl:fieldgroup'/>
+          <element ref='adl:auxlist'/>
+          <element ref='adl:verb'/>
+        </choice>
+      </sequence>
+      <attribute name='property' type='string' use='required'/>
+      <attribute name='onselect' type='string' use='optional'/>
+      <attribute name='canadd' use='optional'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='true'/>
+            <enumeration value='false'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+    </complexType>
+  </element>
 
-<!--
+  <!--
   a group of fields and other controls within a form or list, which the 
   renderer might render as a single pane in a tabbed display, for example.
   -->
- <element name='fieldgroup'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <choice minOccurs='0' maxOccurs='unbounded'>
-     <element ref='adl:prompt'/>
-     <element ref='adl:field'/>
-     <element ref='adl:fieldgroup'/>
-     <element ref='adl:auxlist'/>
-     <element ref='adl:verb'/>
-    </choice>
-   </sequence>
-   <attribute name='name' type='string' use='required'/>
-  </complexType>
- </element>
+  <element name='fieldgroup'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <choice minOccurs='0' maxOccurs='unbounded'>
+          <element ref='adl:prompt'/>
+          <element ref='adl:field'/>
+          <element ref='adl:fieldgroup'/>
+          <element ref='adl:auxlist'/>
+          <element ref='adl:verb'/>
+        </choice>
+      </sequence>
+      <attribute name='name' type='string' use='required'/>
+    </complexType>
+  </element>
 
-<!-- a field in a form or page
+  <!-- a field in a form or page
 
   property:   the property which this field displays/edits
   -->
- <element name='field'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:prompt' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:help' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:permission' minOccurs='0' maxOccurs='unbounded'/>
-   </sequence>
-   <attribute name='property' type='string' use='required'/>
-  </complexType>
- </element>
+  <element name='field'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:prompt' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:help' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:permission' minOccurs='0' maxOccurs='unbounded'/>
+      </sequence>
+      <attribute name='property' type='string' use='required'/>
+    </complexType>
+  </element>
 
-<!-- a verb is something that may be done through a form. Probably the verbs 'store' 
+  <!-- a verb is something that may be done through a form. Probably the verbs 'store' 
   and 'delete' are implied, but maybe they need to be explicitly declared. The 'verb'
   attribute of the verb is what gets returned to the controller -->
- <element name='verb'>
-  <complexType>
-   <sequence>
-    <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
-    <element ref='adl:prompt' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:help' minOccurs='0' maxOccurs='unbounded'/>
-    <element ref='adl:permission' minOccurs='0' maxOccurs='unbounded'/>
-   </sequence>
-   <attribute name='verb' type='string' use='required'/>
-   <attribute name='dangerous' use='required'>
-    <simpleType>
-     <restriction base='string'>
-      <enumeration value='true'/>
-      <enumeration value='false'/>
-     </restriction>
-    </simpleType>
-   </attribute>
-  </complexType>
- </element>
+  <element name='verb'>
+    <complexType>
+      <sequence>
+        <element ref='adl:documentation' minOccurs='0' maxOccurs='1'/>
+        <element ref='adl:prompt' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:help' minOccurs='0' maxOccurs='unbounded'/>
+        <element ref='adl:permission' minOccurs='0' maxOccurs='unbounded'/>
+      </sequence>
+      <attribute name='verb' type='string' use='required'/>
+      <attribute name='dangerous' use='required'>
+        <simpleType>
+          <restriction base='string'>
+            <enumeration value='true'/>
+            <enumeration value='false'/>
+          </restriction>
+        </simpleType>
+      </attribute>
+    </complexType>
+  </element>
 
-<!-- a container for global content -->
- <element name='content'>
-  <complexType>
-   <choice minOccurs='0' maxOccurs='unbounded'>
-    <element ref='adl:head'/>
-    <element ref='adl:top'/>
-    <element ref='adl:foot'/>
-   </choice>
-  </complexType>
- </element>
+  <!-- a container for global content -->
+  <element name='content'>
+    <complexType>
+      <choice minOccurs='0' maxOccurs='unbounded'>
+        <element ref='adl:head'/>
+        <element ref='adl:top'/>
+        <element ref='adl:foot'/>
+      </choice>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	content to place in the head of the generated document; this is #PCDATA 
 	because it will almost certainly belong to a different namespace 
 	(usually HTML)
 -->
- <element name='head'>
-  <complexType mixed='true'>
-  </complexType>
- </element>
+  <element name='head'>
+    <complexType>
+      <sequence>
+        <any namespace="http://www.w3.org/1999/xhtml"
+             minOccurs="1" maxOccurs="unbounded"
+             processContents="skip"/>
+      </sequence>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	content to place in the top of the body of the generated document; 
 	this is #PCDATA because it will almost certainly belong to a different 
 	namespace (usually HTML)
+   
+   Schema only: no harm in this being required to be contained in an HTML div
 -->
- <element name='top'>
-  <complexType mixed='true'>
-  </complexType>
- </element>
+  <element name='top'>
+    <complexType>
+      <sequence>
+        <any namespace="http://www.w3.org/1999/xhtml"
+             minOccurs="1" maxOccurs="unbounded"
+             processContents="skip"/>
+      </sequence>
+    </complexType>
+  </element>
 
-<!-- 
+  <!-- 
 	content to place at the foot of the body of the generated document; 
 	this is #PCDATA because it will almost certainly belong to a different 
 	namespace (usually HTML)
+   
+   Schema only: no harm in this being required to be contained in an HTML div
 -->
- <element name='foot'>
-  <complexType mixed='true'>
-  </complexType>
- </element>
+  <element name='foot'>
+    <complexType>
+      <sequence>
+        <any namespace="http://www.w3.org/1999/xhtml"
+             minOccurs="1" maxOccurs="unbounded"
+             processContents="skip"/>
+      </sequence>
+    </complexType>
+  </element>
 </schema>