From 140d836e9cd54fb67b969fd82ef7ed19ba574d40 Mon Sep 17 00:00:00 2001
From: Luca Falavigna <dktrkranz@debian.org>
Date: Sat, 26 Apr 2014 15:11:58 +0200
Subject: Imported Upstream version 2.3.1

---
 doc/xsd/calstblx.xsd |  390 +++
 doc/xsd/dbhierx.xsd  | 2186 +++++++++++++
 doc/xsd/dbnotnx.xsd  |  102 +
 doc/xsd/dbpoolx.xsd  | 8682 ++++++++++++++++++++++++++++++++++++++++++++++++++
 doc/xsd/htmltblx.xsd |  431 +++
 doc/xsd/scons.xsd    |   99 +
 doc/xsd/xml.xsd      |   15 +
 7 files changed, 11905 insertions(+)
 create mode 100644 doc/xsd/calstblx.xsd
 create mode 100644 doc/xsd/dbhierx.xsd
 create mode 100644 doc/xsd/dbnotnx.xsd
 create mode 100644 doc/xsd/dbpoolx.xsd
 create mode 100644 doc/xsd/htmltblx.xsd
 create mode 100644 doc/xsd/scons.xsd
 create mode 100644 doc/xsd/xml.xsd

(limited to 'doc/xsd')

diff --git a/doc/xsd/calstblx.xsd b/doc/xsd/calstblx.xsd
new file mode 100644
index 0000000..6f899a3
--- /dev/null
+++ b/doc/xsd/calstblx.xsd
@@ -0,0 +1,390 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- ...................................................................... -->
+<!-- SCons DocBook V4.5-Based extension V1.0 XML CALS Table Model V4.5 .... -->
+<!-- File calstblx.xsd .................................................... -->
+
+<!-- Copyright (c) 2001-7,2010,2011,2012 The SCons Foundation
+
+     Permission is hereby granted, free of charge, to any person obtaining
+     a copy of this software and associated documentation files (the
+     "Software"), to deal in the Software without restriction, including
+     without limitation the rights to use, copy, modify, merge, publish,
+     distribute, sublicense, and/or sell copies of the Software, and to
+     permit persons to whom the Software is furnished to do so, subject to
+     the following conditions:
+
+     The above copyright notice and this permission notice shall be included
+     in all copies or substantial portions of the Software.
+
+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+     KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+     LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+     This DTD extension is based on the DocBook CALS Table Model V4.5 with:
+     
+        Copyright 1992-2002 HaL Computer Systems, Inc.,
+        O'Reilly & Associates, Inc., ArborText, Inc., Fujitsu Software
+        Corporation, Norman Walsh, Sun Microsystems, Inc., and the
+        Organization for the Advancement of Structured Information
+        Standards (OASIS).
+  
+        This DTD is based on the CALS Table Model
+        PUBLIC "-//USA-DOD//DTD Table Model 951010//EN"
+  
+        $Id: calstblx.dtd 6340 2006-10-03 13:23:24Z nwalsh $
+
+     Please direct all questions, bug reports, or suggestions for
+     changes to the docbook@lists.oasis-open.org mailing list. For more
+     information, see http://www.oasis-open.org/docbook/.
+     For the modified SCons extension files
+     
+        scons.xsd, dbpoolx.xsd, 
+
+     you can write to its developer mailing list. Check out 
+     http://www.scons.org/ and http://www.scons.org/lists.php.
+ 
+-->
+<!-- ...................................................................... -->
+<!--
+  This module contains the definitions for the CALS Table Model
+  converted to XML. It has been modified slightly for use in the
+  combined HTML/CALS models supported by DocBook V4.5.
+-->
+<!--
+  These definitions are not directly related to the table model, but are
+  used in the default CALS table model and are usually defined elsewhere
+  (and prior to the inclusion of this table module) in a CALS DTD.
+-->
+<!--
+  no if zero(s),
+  yes if any other digits value
+-->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
+  <xs:simpleType name="yesorno">
+    <xs:restriction base="xs:string"/>
+  </xs:simpleType>
+  <xs:group name="titles">
+    <xs:sequence>
+      <xs:element minOccurs="0" ref="title"/>
+    </xs:sequence>
+  </xs:group>
+  <!-- default for use in entry content -->
+  <!--
+    The parameter entities as defined below provide the CALS table model
+    as published (as part of the Example DTD) in MIL-HDBK-28001.
+    
+    These following declarations provide the CALS-compliant default definitions
+    for these entities.  However, these entities can and should be redefined
+    (by giving the appropriate parameter entity declaration(s) prior to the
+    reference to this Table Model declaration set entity) to fit the needs
+    of the current application.
+  -->
+  <xs:group name="tbl.table-titles.mdl">
+    <xs:sequence>
+      <xs:group ref="titles"/>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="tbl.table-main.mdl">
+    <xs:choice>
+      <xs:element maxOccurs="unbounded" ref="tgroup"/>
+      <xs:element maxOccurs="unbounded" ref="graphic"/>
+    </xs:choice>
+  </xs:group>
+  <xs:complexType name="tbl.tgroup.mdl">
+    <xs:sequence>
+      <xs:element minOccurs="0" maxOccurs="unbounded" ref="colspec"/>
+      <xs:element minOccurs="0" maxOccurs="unbounded" ref="spanspec"/>
+      <xs:element minOccurs="0" ref="thead"/>
+      <xs:element minOccurs="0" ref="tfoot"/>
+      <xs:element ref="tbody"/>
+    </xs:sequence>
+  </xs:complexType>
+  <xs:attributeGroup name="tbl.tgroup.att">
+    <xs:attribute name="tgroupstyle"/>
+  </xs:attributeGroup>
+  <xs:complexType name="tbl.row.mdl">
+    <xs:choice maxOccurs="unbounded">
+      <xs:element ref="entry"/>
+      <xs:element ref="entrytbl"/>
+    </xs:choice>
+  </xs:complexType>
+  <xs:complexType name="tbl.entrytbl.mdl">
+    <xs:sequence>
+      <xs:element minOccurs="0" maxOccurs="unbounded" ref="colspec"/>
+      <xs:element minOccurs="0" maxOccurs="unbounded" ref="spanspec"/>
+      <xs:element minOccurs="0" ref="thead"/>
+      <xs:element ref="tbody"/>
+    </xs:sequence>
+  </xs:complexType>
+  <!-- =====  Element and attribute declarations follow. ===== -->
+  <!-- doc:A formal table in a document. -->
+  <xs:element name="table" substitutionGroup="formal.class">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="tbl.table.mdl">
+          <xs:attributeGroup ref="table.attlist"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="table.attlist">
+    <xs:attribute name="frame" type="tbl.frame.attval"/>
+    <xs:attribute name="colsep" type="yesorno"/>
+    <xs:attribute name="rowsep" type="yesorno"/>
+    <xs:attributeGroup ref="tbl.table.att"/>
+    <xs:attributeGroup ref="bodyatt"/>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for the main content of a table, or part of a table. -->
+  <xs:element name="tgroup">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="tbl.tgroup.mdl">
+          <xs:attributeGroup ref="tgroup.attlist"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="tgroup.attlist">
+    <xs:attribute name="cols" use="required"/>
+    <xs:attributeGroup ref="tbl.tgroup.att"/>
+    <xs:attribute name="colsep" type="yesorno"/>
+    <xs:attribute name="rowsep" type="yesorno"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="center"/>
+          <xs:enumeration value="justify"/>
+          <xs:enumeration value="char"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="char"/>
+    <xs:attribute name="charoff"/>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+  <!-- doc:Specifications for a column in a table. -->
+  <xs:element name="colspec">
+    <xs:complexType>
+      <xs:attributeGroup ref="colspec.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="colspec.attlist">
+    <xs:attribute name="colnum"/>
+    <xs:attribute name="colname"/>
+    <xs:attribute name="colwidth"/>
+    <xs:attribute name="colsep" type="yesorno"/>
+    <xs:attribute name="rowsep" type="yesorno"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="center"/>
+          <xs:enumeration value="justify"/>
+          <xs:enumeration value="char"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="char"/>
+    <xs:attribute name="charoff"/>
+  </xs:attributeGroup>
+  <!-- doc:Formatting information for a spanned column in a table. -->
+  <xs:element name="spanspec">
+    <xs:complexType>
+      <xs:attributeGroup ref="spanspec.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="spanspec.attlist">
+    <xs:attribute name="namest" use="required"/>
+    <xs:attribute name="nameend" use="required"/>
+    <xs:attribute name="spanname" use="required"/>
+    <xs:attribute name="colsep" type="yesorno"/>
+    <xs:attribute name="rowsep" type="yesorno"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="center"/>
+          <xs:enumeration value="justify"/>
+          <xs:enumeration value="char"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="char"/>
+    <xs:attribute name="charoff"/>
+  </xs:attributeGroup>
+  <!-- doc:A table header consisting of one or more rows. -->
+  <xs:element name="thead">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="tbl.hdft.mdl">
+          <xs:attributeGroup ref="thead.attlist"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="thead.attlist">
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+  <!-- doc:A table footer consisting of one or more rows. -->
+  <xs:element name="tfoot">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="tbl.hdft.mdl">
+          <xs:attributeGroup ref="tfoot.attlist"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="tfoot.attlist">
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for the rows of a table or informal table. -->
+  <xs:element name="tbody">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="tbl.tbody.mdl">
+          <xs:attributeGroup ref="tbody.attlist"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="tbody.attlist">
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+  <!-- doc:A row in a table. -->
+  <xs:element name="row">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="tbl.row.mdl">
+          <xs:attributeGroup ref="row.attlist"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="row.attlist">
+    <xs:attribute name="rowsep" type="yesorno"/>
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+  <!-- doc:A subtable appearing in place of an Entry in a table. -->
+  <xs:element name="entrytbl">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="tbl.entrytbl.mdl">
+          <xs:attributeGroup ref="entrytbl.attlist"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="entrytbl.attlist">
+    <xs:attribute name="cols" use="required"/>
+    <xs:attributeGroup ref="tbl.tgroup.att"/>
+    <xs:attribute name="colname"/>
+    <xs:attribute name="spanname"/>
+    <xs:attribute name="namest"/>
+    <xs:attribute name="nameend"/>
+    <xs:attribute name="colsep" type="yesorno"/>
+    <xs:attribute name="rowsep" type="yesorno"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="center"/>
+          <xs:enumeration value="justify"/>
+          <xs:enumeration value="char"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="char"/>
+    <xs:attribute name="charoff"/>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+  <!-- doc:A cell in a table. -->
+  <xs:element name="entry">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="tbl.entry.mdl"/>
+      <xs:attributeGroup ref="entry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="entry.attlist">
+    <xs:attribute name="colname"/>
+    <xs:attribute name="namest"/>
+    <xs:attribute name="nameend"/>
+    <xs:attribute name="spanname"/>
+    <xs:attribute name="morerows"/>
+    <xs:attribute name="colsep" type="yesorno"/>
+    <xs:attribute name="rowsep" type="yesorno"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="center"/>
+          <xs:enumeration value="justify"/>
+          <xs:enumeration value="char"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="char"/>
+    <xs:attribute name="charoff"/>
+    <xs:attribute name="rotate" type="yesorno"/>
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+</xs:schema>
+<!-- End of SCons DocBook V4.5-Based extension V1.0 XML CALS Table Model V4.5 ... -->
+<!-- ............................................................................ -->
diff --git a/doc/xsd/dbhierx.xsd b/doc/xsd/dbhierx.xsd
new file mode 100644
index 0000000..af99df6
--- /dev/null
+++ b/doc/xsd/dbhierx.xsd
@@ -0,0 +1,2186 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- .............................................................................. -->
+<!-- SCons DocBook V4.5-Based extension V1.0 XML document hierarchy module V4.5 ... -->
+<!-- File dbhierx.xsd ............................................................. -->
+<!-- Copyright (c) 2001-7,2010,2011,2012 The SCons Foundation
+
+     Permission is hereby granted, free of charge, to any person obtaining
+     a copy of this software and associated documentation files (the
+     "Software"), to deal in the Software without restriction, including
+     without limitation the rights to use, copy, modify, merge, publish,
+     distribute, sublicense, and/or sell copies of the Software, and to
+     permit persons to whom the Software is furnished to do so, subject to
+     the following conditions:
+
+     The above copyright notice and this permission notice shall be included
+     in all copies or substantial portions of the Software.
+
+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+     KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+     LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+     This DTD extension is based on the DocBook document hierarchy
+     module V4.5 with:
+     
+        Copyright 1992-2004 HaL Computer Systems, Inc.,
+        O'Reilly & Associates, Inc., ArborText, Inc., Fujitsu Software
+        Corporation, Norman Walsh, Sun Microsystems, Inc., and the
+        Organization for the Advancement of Structured Information
+        Standards (OASIS).
+  
+        $Id: dbhierx.mod 6340 2006-10-03 13:23:24Z nwalsh $
+
+     Please direct all questions, bug reports, or suggestions for
+     changes to the docbook@lists.oasis-open.org mailing list. For more
+     information, see http://www.oasis-open.org/docbook/.
+     For the modified SCons extension files
+     
+        scons.xsd, dbpoolx.xsd, 
+
+     you can write to its developer mailing list. Check out 
+     http://www.scons.org/ and http://www.scons.org/lists.php.
+ 
+-->
+<!-- ...................................................................... -->
+<!--
+  This module contains the definitions for the overall document
+  hierarchies of DocBook documents.  It covers computer documentation
+  manuals and manual fragments, as well as reference entries (such as
+  man pages) and technical journals or anthologies containing
+  articles.
+  
+  This module depends on the DocBook information pool module.  All
+  elements and entities referenced but not defined here are assumed
+  to be defined in the information pool module.
+  
+  In DTD driver files referring to this module, please use an entity
+  declaration that uses the public identifier shown below:
+  
+  <!ENTITY % dbhier PUBLIC
+  "-//OASIS//ELEMENTS DocBook Document Hierarchy V4.5//EN"
+  "dbhierx.mod">
+  %dbhier;
+  
+  See the documentation for detailed information on the parameter
+  entity and module scheme used in DocBook, customizing DocBook and
+  planning for interchange, and changes made since the last release
+  of DocBook.
+-->
+<!-- ...................................................................... -->
+<!-- Entities for module inclusions ....................................... -->
+<!-- ...................................................................... -->
+<!-- Entities for element classes ......................................... -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
+  <xs:element name="appendix.class" abstract="true">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="beginpage"/>
+        <xs:element minOccurs="0" ref="appendixinfo"/>
+        <xs:group ref="bookcomponent.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:element minOccurs="0" ref="tocchap"/>
+        <xs:group ref="bookcomponent.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="appendix.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="article.class" abstract="true">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="div.title.content"/>
+        <xs:element minOccurs="0" ref="articleinfo"/>
+        <xs:element minOccurs="0" ref="tocchap"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="lot"/>
+        <xs:group ref="bookcomponent.content"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:group ref="nav.class"/>
+          <xs:element ref="appendix.class"/>
+          <xs:element ref="colophon"/>
+          <xs:element ref="ackno"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="article.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="book.class" abstract="true">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="div.title.content"/>
+        <xs:element minOccurs="0" ref="bookinfo"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="dedication"/>
+          <xs:element ref="toc"/>
+          <xs:element ref="lot"/>
+          <xs:element ref="glossary"/>
+          <xs:element ref="bibliography"/>
+          <xs:element ref="preface"/>
+          <xs:element ref="chapter.class"/>
+          <xs:element ref="reference"/>
+          <xs:element ref="part"/>
+          <xs:element ref="article.class"/>
+          <xs:element ref="appendix.class"/>
+          <xs:group ref="index.class"/>
+          <xs:element ref="colophon"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="book.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="chapter.class" abstract="true">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="beginpage"/>
+        <xs:element minOccurs="0" ref="chapterinfo"/>
+        <xs:group ref="bookcomponent.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:element minOccurs="0" ref="tocchap"/>
+        <xs:group ref="bookcomponent.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="chapter.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:group name="index.class">
+    <xs:choice>
+      <xs:element ref="index"/>
+      <xs:element ref="setindex"/>
+    </xs:choice>
+  </xs:group>
+  <xs:element name="refentry.class" abstract="true">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="beginpage"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="ndxterm.class"/>
+        <xs:element minOccurs="0" ref="refentryinfo"/>
+        <xs:element minOccurs="0" ref="refmeta"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="remark"/>
+          <xs:element ref="link.char.class"/>
+        </xs:choice>
+        <xs:element maxOccurs="unbounded" ref="refnamediv"/>
+        <xs:element minOccurs="0" ref="refsynopsisdiv"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="refsect1"/>
+          <xs:element maxOccurs="unbounded" ref="refsection"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="refentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="section.class" abstract="true">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="sectioninfo"/>
+        <xs:group ref="sect.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="divcomponent.mix"/>
+            <xs:choice>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="refentry.class"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="section.class"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="simplesect"/>
+            </xs:choice>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refentry.class"/>
+          <xs:element maxOccurs="unbounded" ref="section.class"/>
+          <xs:element maxOccurs="unbounded" ref="simplesect"/>
+        </xs:choice>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="section.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:group name="nav.class">
+    <xs:choice>
+      <xs:element ref="toc"/>
+      <xs:element ref="lot"/>
+      <xs:element ref="index"/>
+      <xs:element ref="glossary"/>
+      <xs:element ref="bibliography"/>
+    </xs:choice>
+  </xs:group>
+  <!-- Redeclaration placeholder ............................................ -->
+  <!--
+    For redeclaring entities that are declared after this point while
+    retaining their references to the entities that are declared before
+    this point
+  -->
+  <!-- ...................................................................... -->
+  <!-- Entities for element mixtures ........................................ -->
+  <xs:group name="divcomponent.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="compound.class"/>
+      <xs:group ref="genobj.class"/>
+      <xs:group ref="descobj.class"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="refcomponent.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="compound.class"/>
+      <xs:group ref="genobj.class"/>
+      <xs:group ref="descobj.class"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="indexdivcomponent.mix">
+    <xs:choice>
+      <xs:element ref="itemizedlist"/>
+      <xs:element ref="orderedlist"/>
+      <xs:element ref="variablelist"/>
+      <xs:element ref="simplelist"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="anchor"/>
+      <xs:element ref="remark"/>
+      <xs:element ref="link.char.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="refname.char.mix">
+    <xs:sequence>
+      <xs:element minOccurs="0" ref="tech.char.class"/>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="partcontent.mix">
+    <xs:choice>
+      <xs:element ref="appendix.class"/>
+      <xs:element ref="chapter.class"/>
+      <xs:group ref="nav.class"/>
+      <xs:element ref="article.class"/>
+      <xs:element ref="preface"/>
+      <xs:element ref="refentry.class"/>
+      <xs:element ref="reference"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="refinline.char.mix">
+    <xs:sequence>
+      <xs:choice minOccurs="0">
+        <xs:element ref="xref.char.class"/>
+        <xs:element ref="gen.char.class"/>
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="tech.char.class"/>
+        <xs:group ref="base.char.class"/>
+        <xs:element ref="docinfo.char.class"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="ndxterm.class"/>
+        <xs:element ref="beginpage"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="refclass.char.mix">
+    <xs:sequence>
+      <xs:element minOccurs="0" ref="application"/>
+    </xs:sequence>
+  </xs:group>
+  <!-- Redeclaration placeholder 2 .......................................... -->
+  <!--
+    For redeclaring entities that are declared after this point while
+    retaining their references to the entities that are declared before
+    this point
+  -->
+  <!-- ...................................................................... -->
+  <!-- Entities for content models .......................................... -->
+  <xs:group name="div.title.content">
+    <xs:sequence>
+      <xs:element ref="title"/>
+      <xs:element minOccurs="0" ref="subtitle"/>
+      <xs:element minOccurs="0" ref="titleabbrev"/>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="bookcomponent.title.content">
+    <xs:sequence>
+      <xs:element ref="title"/>
+      <xs:element minOccurs="0" ref="subtitle"/>
+      <xs:element minOccurs="0" ref="titleabbrev"/>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="sect.title.content">
+    <xs:sequence>
+      <xs:element ref="title"/>
+      <xs:element minOccurs="0" ref="subtitle"/>
+      <xs:element minOccurs="0" ref="titleabbrev"/>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="refsect.title.content">
+    <xs:sequence>
+      <xs:element ref="title"/>
+      <xs:element minOccurs="0" ref="subtitle"/>
+      <xs:element minOccurs="0" ref="titleabbrev"/>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="bookcomponent.content">
+    <xs:choice>
+      <xs:sequence>
+        <xs:group maxOccurs="unbounded" ref="divcomponent.mix"/>
+        <xs:choice>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="sect1"/>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="refentry.class"/>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="simplesect"/>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="section.class"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:choice>
+        <xs:element maxOccurs="unbounded" ref="sect1"/>
+        <xs:element maxOccurs="unbounded" ref="refentry.class"/>
+        <xs:element maxOccurs="unbounded" ref="simplesect"/>
+        <xs:element maxOccurs="unbounded" ref="section.class"/>
+      </xs:choice>
+    </xs:choice>
+  </xs:group>
+  <!-- ...................................................................... -->
+  <!-- Set and SetInfo ...................................................... -->
+  <xs:attributeGroup name="set.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A collection of books. -->
+  <xs:element name="set">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="div.title.content"/>
+        <xs:element minOccurs="0" ref="setinfo"/>
+        <xs:element minOccurs="0" ref="toc"/>
+        <xs:choice maxOccurs="unbounded">
+          <xs:element ref="set"/>
+          <xs:element ref="book.class"/>
+        </xs:choice>
+        <xs:element minOccurs="0" ref="setindex"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="set.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of set.element -->
+  <!-- FPI: SGML formal public identifier -->
+  <xs:attributeGroup name="set.attlist">
+    <xs:attribute name="fpi"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="set.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of set.attlist -->
+  <!-- end of set.module -->
+  <xs:attributeGroup name="setinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Set. -->
+  <xs:element name="setinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="setinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of setinfo.element -->
+  <!--
+    Contents: IDs of the ToC, Books, and SetIndex that comprise
+    the set, in the order of their appearance
+  -->
+  <xs:attributeGroup name="setinfo.attlist">
+    <xs:attribute name="contents" type="xs:IDREFS"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="setinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of setinfo.attlist -->
+  <!-- end of setinfo.module -->
+  <!-- end of set.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Book and BookInfo .................................................... -->
+  <xs:attributeGroup name="book.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A book. -->
+  <xs:element name="book" substitutionGroup="book.class"/>
+  <!-- end of book.element -->
+  <!-- FPI: SGML formal public identifier -->
+  <xs:attributeGroup name="book.attlist">
+    <xs:attribute name="fpi"/>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="book.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of book.attlist -->
+  <!-- end of book.module -->
+  <xs:attributeGroup name="bookinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Book. -->
+  <xs:element name="bookinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="bookinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bookinfo.element -->
+  <!--
+    Contents: IDs of the ToC, LoTs, Prefaces, Parts, Chapters,
+    Appendixes, References, GLossary, Bibliography, and indexes
+    comprising the Book, in the order of their appearance
+  -->
+  <xs:attributeGroup name="bookinfo.attlist">
+    <xs:attribute name="contents" type="xs:IDREFS"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bookinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bookinfo.attlist -->
+  <!-- end of bookinfo.module -->
+  <!-- end of book.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Dedication, ToC, and LoT ............................................. -->
+  <xs:attributeGroup name="dedication.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for the dedication section of a book. -->
+  <xs:element name="dedication">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="sect.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="legalnotice.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="dedication.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of dedication.element -->
+  <xs:attributeGroup name="dedication.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="dedication.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of dedication.attlist -->
+  <!-- end of dedication.module -->
+  <xs:attributeGroup name="colophon.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Text at the back of a book describing facts about its production. -->
+  <xs:element name="colophon">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="sect.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="textobject.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="colophon.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of colophon.element -->
+  <xs:attributeGroup name="colophon.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="colophon.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of colophon.attlist -->
+  <!-- end of colophon.module -->
+  <xs:attributeGroup name="toc.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A table of contents. -->
+  <xs:element name="toc">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="beginpage"/>
+        <xs:group minOccurs="0" ref="bookcomponent.title.content"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="tocfront"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="tocpart"/>
+          <xs:element ref="tocchap"/>
+        </xs:choice>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="tocback"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="toc.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of toc.element -->
+  <xs:attributeGroup name="toc.attlist">
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="toc.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of toc.attlist -->
+  <!-- end of toc.module -->
+  <xs:attributeGroup name="tocfront.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in a table of contents for a front matter component. -->
+  <xs:element name="tocfront">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="tocfront.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tocfront.element -->
+  <!-- to element that this entry represents -->
+  <xs:attributeGroup name="tocfront.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="linkend.attrib"/>
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="tocfront.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tocfront.attlist -->
+  <!-- end of tocfront.module -->
+  <xs:attributeGroup name="tocentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A component title in a table of contents. -->
+  <xs:element name="tocentry">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="tocentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tocentry.element -->
+  <!-- to element that this entry represents -->
+  <xs:attributeGroup name="tocentry.attlist">
+    <xs:attributeGroup ref="linkend.attrib"/>
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="tocentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tocentry.attlist -->
+  <!-- end of tocentry.module -->
+  <xs:attributeGroup name="tocpart.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in a table of contents for a part of a book. -->
+  <xs:element name="tocpart">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tocentry"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="tocchap"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="tocpart.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tocpart.element -->
+  <xs:attributeGroup name="tocpart.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="tocpart.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tocpart.attlist -->
+  <!-- end of tocpart.module -->
+  <xs:attributeGroup name="tocchap.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in a table of contents for a component in the body of a document. -->
+  <xs:element name="tocchap">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tocentry"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="toclevel1"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="tocchap.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tocchap.element -->
+  <xs:attributeGroup name="tocchap.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="tocchap.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tocchap.attlist -->
+  <!-- end of tocchap.module -->
+  <xs:attributeGroup name="toclevel1.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A top-level entry within a table of contents entry for a chapter-like component. -->
+  <xs:element name="toclevel1">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tocentry"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="toclevel2"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="toclevel1.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of toclevel1.element -->
+  <xs:attributeGroup name="toclevel1.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="toclevel1.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of toclevel1.attlist -->
+  <!-- end of toclevel1.module -->
+  <xs:attributeGroup name="toclevel2.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A second-level entry within a table of contents entry for a chapter-like component. -->
+  <xs:element name="toclevel2">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tocentry"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="toclevel3"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="toclevel2.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of toclevel2.element -->
+  <xs:attributeGroup name="toclevel2.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="toclevel2.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of toclevel2.attlist -->
+  <!-- end of toclevel2.module -->
+  <xs:attributeGroup name="toclevel3.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A third-level entry within a table of contents entry for a chapter-like component. -->
+  <xs:element name="toclevel3">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tocentry"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="toclevel4"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="toclevel3.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of toclevel3.element -->
+  <xs:attributeGroup name="toclevel3.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="toclevel3.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of toclevel3.attlist -->
+  <!-- end of toclevel3.module -->
+  <xs:attributeGroup name="toclevel4.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A fourth-level entry within a table of contents entry for a chapter-like component. -->
+  <xs:element name="toclevel4">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tocentry"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="toclevel5"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="toclevel4.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of toclevel4.element -->
+  <xs:attributeGroup name="toclevel4.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="toclevel4.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of toclevel4.attlist -->
+  <!-- end of toclevel4.module -->
+  <xs:attributeGroup name="toclevel5.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A fifth-level entry within a table of contents entry for a chapter-like component. -->
+  <xs:element name="toclevel5">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tocentry"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="toclevel5.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of toclevel5.element -->
+  <xs:attributeGroup name="toclevel5.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="toclevel5.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of toclevel5.attlist -->
+  <!-- end of toclevel5.module -->
+  <xs:attributeGroup name="tocback.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in a table of contents for a back matter component. -->
+  <xs:element name="tocback">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="tocback.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tocback.element -->
+  <!-- to element that this entry represents -->
+  <xs:attributeGroup name="tocback.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="linkend.attrib"/>
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="tocback.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tocback.attlist -->
+  <!-- end of tocback.module -->
+  <!-- end of toc.content.module -->
+  <xs:attributeGroup name="lot.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list of the titles of formal objects (as tables or figures) in a document. -->
+  <xs:element name="lot">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="beginpage"/>
+        <xs:group minOccurs="0" ref="bookcomponent.title.content"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="lotentry"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="lot.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of lot.element -->
+  <xs:attributeGroup name="lot.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="lot.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of lot.attlist -->
+  <!-- end of lot.module -->
+  <xs:attributeGroup name="lotentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in a list of titles. -->
+  <xs:element name="lotentry">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="lotentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of lotentry.element -->
+  <!--
+    SrcCredit: Information about the source of the entry,
+    as for a list of illustrations
+  -->
+  <!-- linkend: to element that this entry represents -->
+  <xs:attributeGroup name="lotentry.attlist">
+    <xs:attributeGroup ref="linkend.attrib"/>
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attribute name="srccredit"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="lotentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of lotentry.attlist -->
+  <!-- end of lotentry.module -->
+  <!-- end of lot.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Appendix, Chapter, Part, Preface, Reference, PartIntro ............... -->
+  <xs:attributeGroup name="appendix.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An appendix in a Book or Article. -->
+  <xs:element name="appendix" substitutionGroup="appendix.class"/>
+  <!-- end of appendix.element -->
+  <xs:attributeGroup name="appendix.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="appendix.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of appendix.attlist -->
+  <!-- end of appendix.module -->
+  <xs:attributeGroup name="chapter.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A chapter, as of a book. -->
+  <xs:element name="chapter" substitutionGroup="chapter.class"/>
+  <!-- end of chapter.element -->
+  <xs:attributeGroup name="chapter.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="chapter.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of chapter.attlist -->
+  <!-- end of chapter.module -->
+  <!--
+    Note that Part was to have its content model reduced in V4.5.  This
+    change will not be made after all.
+  -->
+  <xs:attributeGroup name="part.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A division in a book. -->
+  <xs:element name="part">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="beginpage"/>
+        <xs:element minOccurs="0" ref="partinfo"/>
+        <xs:group ref="bookcomponent.title.content"/>
+        <xs:element minOccurs="0" ref="partintro"/>
+        <xs:group maxOccurs="unbounded" ref="partcontent.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="part.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of part.element -->
+  <xs:attributeGroup name="part.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="part.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of part.attlist -->
+  <!-- ELEMENT PartIntro (defined below) -->
+  <!-- end of part.module -->
+  <xs:attributeGroup name="preface.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Introductory matter preceding the first chapter of a book. -->
+  <xs:element name="preface">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="beginpage"/>
+        <xs:element minOccurs="0" ref="prefaceinfo"/>
+        <xs:group ref="bookcomponent.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:element minOccurs="0" ref="tocchap"/>
+        <xs:group ref="bookcomponent.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="preface.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of preface.element -->
+  <xs:attributeGroup name="preface.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="preface.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of preface.attlist -->
+  <!-- end of preface.module -->
+  <xs:attributeGroup name="reference.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A collection of reference entries. -->
+  <xs:element name="reference">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="beginpage"/>
+        <xs:element minOccurs="0" ref="referenceinfo"/>
+        <xs:group ref="bookcomponent.title.content"/>
+        <xs:element minOccurs="0" ref="partintro"/>
+        <xs:element maxOccurs="unbounded" ref="refentry.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="reference.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of reference.element -->
+  <xs:attributeGroup name="reference.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="reference.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of reference.attlist -->
+  <!-- ELEMENT PartIntro (defined below) -->
+  <!-- end of reference.module -->
+  <xs:attributeGroup name="partintro.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An introduction to the contents of a part. -->
+  <xs:element name="partintro">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="div.title.content"/>
+        <xs:group ref="bookcomponent.content"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="partintro.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of partintro.element -->
+  <xs:attributeGroup name="partintro.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="partintro.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of partintro.attlist -->
+  <!-- end of partintro.module -->
+  <!-- ...................................................................... -->
+  <!-- Other Info elements .................................................. -->
+  <xs:attributeGroup name="appendixinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for an Appendix. -->
+  <xs:element name="appendixinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="appendixinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of appendixinfo.element -->
+  <xs:attributeGroup name="appendixinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="appendixinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of appendixinfo.attlist -->
+  <!-- end of appendixinfo.module -->
+  <xs:attributeGroup name="bibliographyinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Bibliography. -->
+  <xs:element name="bibliographyinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="bibliographyinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliographyinfo.element -->
+  <xs:attributeGroup name="bibliographyinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliographyinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliographyinfo.attlist -->
+  <!-- end of bibliographyinfo.module -->
+  <xs:attributeGroup name="chapterinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Chapter. -->
+  <xs:element name="chapterinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="chapterinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of chapterinfo.element -->
+  <xs:attributeGroup name="chapterinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="chapterinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of chapterinfo.attlist -->
+  <!-- end of chapterinfo.module -->
+  <xs:attributeGroup name="glossaryinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Glossary. -->
+  <xs:element name="glossaryinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="glossaryinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glossaryinfo.element -->
+  <xs:attributeGroup name="glossaryinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glossaryinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glossaryinfo.attlist -->
+  <!-- end of glossaryinfo.module -->
+  <xs:attributeGroup name="indexinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for an Index. -->
+  <xs:element name="indexinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="indexinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of indexinfo.element -->
+  <xs:attributeGroup name="indexinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="indexinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of indexinfo.attlist -->
+  <!-- end of indexinfo.module -->
+  <xs:attributeGroup name="setindexinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a SetIndex. -->
+  <xs:element name="setindexinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="setindexinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of setindexinfo.element -->
+  <xs:attributeGroup name="setindexinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="setindexinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of setindexinfo.attlist -->
+  <!-- end of setindexinfo.module -->
+  <xs:attributeGroup name="partinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Part. -->
+  <xs:element name="partinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="partinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of partinfo.element -->
+  <xs:attributeGroup name="partinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="partinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of partinfo.attlist -->
+  <!-- end of partinfo.module -->
+  <xs:attributeGroup name="prefaceinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Preface. -->
+  <xs:element name="prefaceinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="prefaceinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of prefaceinfo.element -->
+  <xs:attributeGroup name="prefaceinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="prefaceinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of prefaceinfo.attlist -->
+  <!-- end of prefaceinfo.module -->
+  <xs:attributeGroup name="refentryinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Refentry. -->
+  <xs:element name="refentryinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="refentryinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refentryinfo.element -->
+  <xs:attributeGroup name="refentryinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refentryinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refentryinfo.attlist -->
+  <!-- end of refentryinfo.module -->
+  <xs:attributeGroup name="refsectioninfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a refsection. -->
+  <xs:element name="refsectioninfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="refsectioninfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsectioninfo.element -->
+  <xs:attributeGroup name="refsectioninfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsectioninfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsectioninfo.attlist -->
+  <!-- end of refsectioninfo.module -->
+  <xs:attributeGroup name="refsect1info.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a RefSect1. -->
+  <xs:element name="refsect1info">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="refsect1info.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsect1info.element -->
+  <xs:attributeGroup name="refsect1info.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsect1info.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsect1info.attlist -->
+  <!-- end of refsect1info.module -->
+  <xs:attributeGroup name="refsect2info.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a RefSect2. -->
+  <xs:element name="refsect2info">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="refsect2info.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsect2info.element -->
+  <xs:attributeGroup name="refsect2info.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsect2info.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsect2info.attlist -->
+  <!-- end of refsect2info.module -->
+  <xs:attributeGroup name="refsect3info.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a RefSect3. -->
+  <xs:element name="refsect3info">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="refsect3info.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsect3info.element -->
+  <xs:attributeGroup name="refsect3info.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsect3info.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsect3info.attlist -->
+  <!-- end of refsect3info.module -->
+  <xs:attributeGroup name="refsynopsisdivinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a RefSynopsisDiv. -->
+  <xs:element name="refsynopsisdivinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="refsynopsisdivinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsynopsisdivinfo.element -->
+  <xs:attributeGroup name="refsynopsisdivinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsynopsisdivinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsynopsisdivinfo.attlist -->
+  <!-- end of refsynopsisdivinfo.module -->
+  <xs:attributeGroup name="referenceinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Reference. -->
+  <xs:element name="referenceinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="referenceinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of referenceinfo.element -->
+  <xs:attributeGroup name="referenceinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="referenceinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of referenceinfo.attlist -->
+  <!-- end of referenceinfo.module -->
+  <xs:attributeGroup name="sect1info.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Sect1. -->
+  <xs:element name="sect1info">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="sect1info.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect1info.element -->
+  <xs:attributeGroup name="sect1info.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect1info.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect1info.attlist -->
+  <xs:attributeGroup name="sect2info.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Sect2. -->
+  <xs:element name="sect2info">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="sect2info.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect2info.element -->
+  <xs:attributeGroup name="sect2info.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect2info.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect2info.attlist -->
+  <xs:attributeGroup name="sect3info.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Sect3. -->
+  <xs:element name="sect3info">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="sect3info.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect3info.element -->
+  <xs:attributeGroup name="sect3info.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect3info.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect3info.attlist -->
+  <xs:attributeGroup name="sect4info.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Sect4. -->
+  <xs:element name="sect4info">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="sect4info.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect4info.element -->
+  <xs:attributeGroup name="sect4info.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect4info.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect4info.attlist -->
+  <xs:attributeGroup name="sect5info.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Sect5. -->
+  <xs:element name="sect5info">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="sect5info.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect5info.element -->
+  <xs:attributeGroup name="sect5info.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect5info.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect5info.attlist -->
+  <!-- ...................................................................... -->
+  <!-- Section (parallel to Sect*) ......................................... -->
+  <xs:attributeGroup name="section.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A recursive section. -->
+  <xs:element name="section" substitutionGroup="section.class"/>
+  <!-- end of section.element -->
+  <xs:attributeGroup name="section.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="section.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of section.attlist -->
+  <!-- end of section.module -->
+  <xs:attributeGroup name="sectioninfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a recursive section. -->
+  <xs:element name="sectioninfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="sectioninfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sectioninfo.element -->
+  <xs:attributeGroup name="sectioninfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sectioninfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sectioninfo.attlist -->
+  <!-- end of sectioninfo.module -->
+  <!-- end of section.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Sect1, Sect2, Sect3, Sect4, Sect5 .................................... -->
+  <xs:attributeGroup name="sect1.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A top-level section of document. -->
+  <xs:element name="sect1">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="sect1info"/>
+        <xs:group ref="sect.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="divcomponent.mix"/>
+            <xs:choice>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="refentry.class"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="sect2"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="simplesect"/>
+            </xs:choice>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refentry.class"/>
+          <xs:element maxOccurs="unbounded" ref="sect2"/>
+          <xs:element maxOccurs="unbounded" ref="simplesect"/>
+        </xs:choice>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="sect1.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect1.element -->
+  <!--
+    Renderas: Indicates the format in which the heading should
+    appear
+  -->
+  <xs:attributeGroup name="sect1.attlist">
+    <xs:attribute name="renderas">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="sect2"/>
+          <xs:enumeration value="sect3"/>
+          <xs:enumeration value="sect4"/>
+          <xs:enumeration value="sect5"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect1.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect1.attlist -->
+  <!-- end of sect1.module -->
+  <xs:attributeGroup name="sect2.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A subsection within a Sect1. -->
+  <xs:element name="sect2">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="sect2info"/>
+        <xs:group ref="sect.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="divcomponent.mix"/>
+            <xs:choice>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="refentry.class"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="sect3"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="simplesect"/>
+            </xs:choice>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refentry.class"/>
+          <xs:element maxOccurs="unbounded" ref="sect3"/>
+          <xs:element maxOccurs="unbounded" ref="simplesect"/>
+        </xs:choice>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="sect2.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect2.element -->
+  <!--
+    Renderas: Indicates the format in which the heading should
+    appear
+  -->
+  <xs:attributeGroup name="sect2.attlist">
+    <xs:attribute name="renderas">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="sect1"/>
+          <xs:enumeration value="sect3"/>
+          <xs:enumeration value="sect4"/>
+          <xs:enumeration value="sect5"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect2.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect2.attlist -->
+  <!-- end of sect2.module -->
+  <xs:attributeGroup name="sect3.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A subsection within a Sect2. -->
+  <xs:element name="sect3">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="sect3info"/>
+        <xs:group ref="sect.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="divcomponent.mix"/>
+            <xs:choice>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="refentry.class"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="sect4"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="simplesect"/>
+            </xs:choice>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refentry.class"/>
+          <xs:element maxOccurs="unbounded" ref="sect4"/>
+          <xs:element maxOccurs="unbounded" ref="simplesect"/>
+        </xs:choice>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="sect3.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect3.element -->
+  <!--
+    Renderas: Indicates the format in which the heading should
+    appear
+  -->
+  <xs:attributeGroup name="sect3.attlist">
+    <xs:attribute name="renderas">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="sect1"/>
+          <xs:enumeration value="sect2"/>
+          <xs:enumeration value="sect4"/>
+          <xs:enumeration value="sect5"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect3.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect3.attlist -->
+  <!-- end of sect3.module -->
+  <xs:attributeGroup name="sect4.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A subsection within a Sect3. -->
+  <xs:element name="sect4">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="sect4info"/>
+        <xs:group ref="sect.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="divcomponent.mix"/>
+            <xs:choice>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="refentry.class"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="sect5"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="simplesect"/>
+            </xs:choice>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refentry.class"/>
+          <xs:element maxOccurs="unbounded" ref="sect5"/>
+          <xs:element maxOccurs="unbounded" ref="simplesect"/>
+        </xs:choice>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="sect4.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect4.element -->
+  <!--
+    Renderas: Indicates the format in which the heading should
+    appear
+  -->
+  <xs:attributeGroup name="sect4.attlist">
+    <xs:attribute name="renderas">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="sect1"/>
+          <xs:enumeration value="sect2"/>
+          <xs:enumeration value="sect3"/>
+          <xs:enumeration value="sect5"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect4.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect4.attlist -->
+  <!-- end of sect4.module -->
+  <xs:attributeGroup name="sect5.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A subsection within a Sect4. -->
+  <xs:element name="sect5">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="sect5info"/>
+        <xs:group ref="sect.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="divcomponent.mix"/>
+            <xs:choice>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="refentry.class"/>
+              <xs:element minOccurs="0" maxOccurs="unbounded" ref="simplesect"/>
+            </xs:choice>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refentry.class"/>
+          <xs:element maxOccurs="unbounded" ref="simplesect"/>
+        </xs:choice>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="nav.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="sect5.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sect5.element -->
+  <!--
+    Renderas: Indicates the format in which the heading should
+    appear
+  -->
+  <xs:attributeGroup name="sect5.attlist">
+    <xs:attribute name="renderas">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="sect1"/>
+          <xs:enumeration value="sect2"/>
+          <xs:enumeration value="sect3"/>
+          <xs:enumeration value="sect4"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sect5.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sect5.attlist -->
+  <!-- end of sect5.module -->
+  <xs:attributeGroup name="simplesect.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A section of a document with no subdivisions. -->
+  <xs:element name="simplesect">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group ref="sect.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="divcomponent.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="simplesect.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of simplesect.element -->
+  <xs:attributeGroup name="simplesect.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="simplesect.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of simplesect.attlist -->
+  <!-- end of simplesect.module -->
+  <!-- ...................................................................... -->
+  <!-- Bibliography ......................................................... -->
+  <xs:attributeGroup name="bibliography.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A bibliography. -->
+  <xs:element name="bibliography">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="bibliographyinfo"/>
+        <xs:group minOccurs="0" ref="bookcomponent.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="bibliodiv"/>
+          <xs:choice maxOccurs="unbounded">
+            <xs:element ref="biblioentry"/>
+            <xs:element ref="bibliomixed"/>
+          </xs:choice>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="bibliography.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliography.element -->
+  <xs:attributeGroup name="bibliography.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliography.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliography.attlist -->
+  <!-- end of bibliography.module -->
+  <xs:attributeGroup name="bibliodiv.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A section of a Bibliography. -->
+  <xs:element name="bibliodiv">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="sect.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+        <xs:choice maxOccurs="unbounded">
+          <xs:element ref="biblioentry"/>
+          <xs:element ref="bibliomixed"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="bibliodiv.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliodiv.element -->
+  <xs:attributeGroup name="bibliodiv.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliodiv.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliodiv.attlist -->
+  <!-- end of bibliodiv.module -->
+  <!-- end of bibliography.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Glossary ............................................................. -->
+  <xs:attributeGroup name="glossary.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A glossary. -->
+  <xs:element name="glossary">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="glossaryinfo"/>
+        <xs:group minOccurs="0" ref="bookcomponent.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="glossdiv"/>
+          <xs:element maxOccurs="unbounded" ref="glossentry"/>
+        </xs:choice>
+        <xs:element minOccurs="0" ref="bibliography"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="glossary.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glossary.element -->
+  <xs:attributeGroup name="glossary.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glossary.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glossary.attlist -->
+  <!-- end of glossary.module -->
+  <xs:attributeGroup name="glossdiv.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A division in a Glossary. -->
+  <xs:element name="glossdiv">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group ref="sect.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+        <xs:element maxOccurs="unbounded" ref="glossentry"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="glossdiv.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glossdiv.element -->
+  <xs:attributeGroup name="glossdiv.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glossdiv.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glossdiv.attlist -->
+  <!-- end of glossdiv.module -->
+  <!-- end of glossary.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Index and SetIndex ................................................... -->
+  <xs:attributeGroup name="indexes.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An index. -->
+  <xs:element name="index">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="indexinfo"/>
+        <xs:group minOccurs="0" ref="bookcomponent.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+        <xs:choice>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="indexdiv"/>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="indexentry"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="index.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of index.element -->
+  <xs:attributeGroup name="index.attlist">
+    <xs:attribute name="type"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="indexes.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of index.attlist -->
+  <!-- doc:An index to a set of books. -->
+  <xs:element name="setindex">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="setindexinfo"/>
+        <xs:group minOccurs="0" ref="bookcomponent.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+        <xs:choice>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="indexdiv"/>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="indexentry"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="setindex.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of setindex.element -->
+  <xs:attributeGroup name="setindex.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="indexes.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of setindex.attlist -->
+  <!-- end of indexes.module -->
+  <!--
+    SegmentedList in this content is useful for marking up permuted
+    indices.
+  -->
+  <xs:attributeGroup name="indexdiv.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A division in an index. -->
+  <xs:element name="indexdiv">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="sect.title.content"/>
+        <xs:sequence>
+          <xs:group minOccurs="0" maxOccurs="unbounded" ref="indexdivcomponent.mix"/>
+          <xs:choice>
+            <xs:element maxOccurs="unbounded" ref="indexentry"/>
+            <xs:element ref="segmentedlist"/>
+          </xs:choice>
+        </xs:sequence>
+      </xs:sequence>
+      <xs:attributeGroup ref="indexdiv.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of indexdiv.element -->
+  <xs:attributeGroup name="indexdiv.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="indexdiv.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of indexdiv.attlist -->
+  <!-- end of indexdiv.module -->
+  <!-- Index entries appear in the index, not the text. -->
+  <xs:attributeGroup name="indexentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in an index. -->
+  <xs:element name="indexentry">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="primaryie"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="seeie"/>
+          <xs:element ref="seealsoie"/>
+        </xs:choice>
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="secondaryie"/>
+          <xs:choice minOccurs="0" maxOccurs="unbounded">
+            <xs:element ref="seeie"/>
+            <xs:element ref="seealsoie"/>
+            <xs:element ref="tertiaryie"/>
+          </xs:choice>
+        </xs:sequence>
+      </xs:sequence>
+      <xs:attributeGroup ref="indexentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of indexentry.element -->
+  <xs:attributeGroup name="indexentry.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="indexentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of indexentry.attlist -->
+  <!-- end of indexentry.module -->
+  <xs:attributeGroup name="primsecterie.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A primary term in an index entry, not in the text. -->
+  <xs:element name="primaryie">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="primaryie.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of primaryie.element -->
+  <!-- to IndexTerms that these entries represent -->
+  <xs:attributeGroup name="primaryie.attlist">
+    <xs:attributeGroup ref="linkends.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="primsecterie.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of primaryie.attlist -->
+  <!-- doc:A secondary term in an index entry, rather than in the text. -->
+  <xs:element name="secondaryie">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="secondaryie.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of secondaryie.element -->
+  <!-- to IndexTerms that these entries represent -->
+  <xs:attributeGroup name="secondaryie.attlist">
+    <xs:attributeGroup ref="linkends.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="primsecterie.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of secondaryie.attlist -->
+  <!-- doc:A tertiary term in an index entry, rather than in the text. -->
+  <xs:element name="tertiaryie">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="tertiaryie.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tertiaryie.element -->
+  <!-- to IndexTerms that these entries represent -->
+  <xs:attributeGroup name="tertiaryie.attlist">
+    <xs:attributeGroup ref="linkends.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="primsecterie.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tertiaryie.attlist -->
+  <!-- end of primsecterie.module -->
+  <xs:attributeGroup name="seeie.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A See entry in an index, rather than in the text. -->
+  <xs:element name="seeie">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="seeie.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of seeie.element -->
+  <!-- to IndexEntry to look up -->
+  <xs:attributeGroup name="seeie.attlist">
+    <xs:attributeGroup ref="linkend.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="seeie.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of seeie.attlist -->
+  <!-- end of seeie.module -->
+  <xs:attributeGroup name="seealsoie.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A See also entry in an index, rather than in the text. -->
+  <xs:element name="seealsoie">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="seealsoie.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of seealsoie.element -->
+  <!-- to related IndexEntries -->
+  <xs:attributeGroup name="seealsoie.attlist">
+    <xs:attributeGroup ref="linkends.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="seealsoie.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of seealsoie.attlist -->
+  <!-- end of seealsoie.module -->
+  <!-- end of index.content.module -->
+  <!-- ...................................................................... -->
+  <!-- RefEntry ............................................................. -->
+  <xs:attributeGroup name="refentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A reference page (originally a UNIX man-style reference page). -->
+  <xs:element name="refentry" substitutionGroup="refentry.class"/>
+  <!-- end of refentry.element -->
+  <xs:attributeGroup name="refentry.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refentry.attlist -->
+  <!-- end of refentry.module -->
+  <xs:attributeGroup name="refmeta.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a reference entry. -->
+  <xs:element name="refmeta">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="ndxterm.class"/>
+        <xs:element ref="refentrytitle"/>
+        <xs:element minOccurs="0" ref="manvolnum"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="refmiscinfo"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="ndxterm.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="refmeta.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refmeta.element -->
+  <xs:attributeGroup name="refmeta.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refmeta.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refmeta.attlist -->
+  <!-- end of refmeta.module -->
+  <xs:attributeGroup name="refmiscinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a reference entry other than the title and volume number. -->
+  <xs:element name="refmiscinfo">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="refmiscinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refmiscinfo.element -->
+  <!-- Class: Freely assignable parameter; no default -->
+  <xs:attributeGroup name="refmiscinfo.attlist">
+    <xs:attribute name="class"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refmiscinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refmiscinfo.attlist -->
+  <!-- end of refmiscinfo.module -->
+  <xs:attributeGroup name="refnamediv.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name, purpose, and classification of a reference page. -->
+  <xs:element name="refnamediv">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="refdescriptor"/>
+        <xs:element maxOccurs="unbounded" ref="refname"/>
+        <xs:element ref="refpurpose"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="refclass"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="remark"/>
+          <xs:element ref="link.char.class"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="refnamediv.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refnamediv.element -->
+  <xs:attributeGroup name="refnamediv.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refnamediv.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refnamediv.attlist -->
+  <!-- end of refnamediv.module -->
+  <xs:attributeGroup name="refdescriptor.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A description of the topic of a reference page. -->
+  <xs:element name="refdescriptor">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="refname.char.mix"/>
+      <xs:attributeGroup ref="refdescriptor.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refdescriptor.element -->
+  <xs:attributeGroup name="refdescriptor.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refdescriptor.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refdescriptor.attlist -->
+  <!-- end of refdescriptor.module -->
+  <xs:attributeGroup name="refname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of (one of) the subject(s) of a reference page. -->
+  <xs:element name="refname">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="refname.char.mix"/>
+      <xs:attributeGroup ref="refname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refname.element -->
+  <xs:attributeGroup name="refname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refname.attlist -->
+  <!-- end of refname.module -->
+  <xs:attributeGroup name="refpurpose.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A short (one sentence) synopsis of the topic of a reference page. -->
+  <xs:element name="refpurpose">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="refinline.char.mix"/>
+      <xs:attributeGroup ref="refpurpose.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refpurpose.element -->
+  <xs:attributeGroup name="refpurpose.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refpurpose.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refpurpose.attlist -->
+  <!-- end of refpurpose.module -->
+  <xs:attributeGroup name="refclass.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The scope or other indication of applicability of a reference entry. -->
+  <xs:element name="refclass">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="refclass.char.mix"/>
+      <xs:attributeGroup ref="refclass.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refclass.element -->
+  <xs:attributeGroup name="refclass.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refclass.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refclass.attlist -->
+  <!-- end of refclass.module -->
+  <xs:attributeGroup name="refsynopsisdiv.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A syntactic synopsis of the subject of the reference page. -->
+  <xs:element name="refsynopsisdiv">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="refsynopsisdivinfo"/>
+        <xs:group minOccurs="0" ref="refsect.title.content"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="refcomponent.mix"/>
+            <xs:element minOccurs="0" maxOccurs="unbounded" ref="refsect2"/>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refsect2"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="refsynopsisdiv.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsynopsisdiv.element -->
+  <xs:attributeGroup name="refsynopsisdiv.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsynopsisdiv.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsynopsisdiv.attlist -->
+  <!-- end of refsynopsisdiv.module -->
+  <xs:attributeGroup name="refsection.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A recursive section in a refentry. -->
+  <xs:element name="refsection">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="refsectioninfo"/>
+        <xs:group ref="refsect.title.content"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="refcomponent.mix"/>
+            <xs:element minOccurs="0" maxOccurs="unbounded" ref="refsection"/>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refsection"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="refsection.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsection.element -->
+  <xs:attributeGroup name="refsection.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsection.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsection.attlist -->
+  <!-- end of refsection.module -->
+  <xs:attributeGroup name="refsect1.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A major subsection of a reference entry. -->
+  <xs:element name="refsect1">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="refsect1info"/>
+        <xs:group ref="refsect.title.content"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="refcomponent.mix"/>
+            <xs:element minOccurs="0" maxOccurs="unbounded" ref="refsect2"/>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refsect2"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="refsect1.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsect1.element -->
+  <xs:attributeGroup name="refsect1.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsect1.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsect1.attlist -->
+  <!-- end of refsect1.module -->
+  <xs:attributeGroup name="refsect2.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A subsection of a RefSect1. -->
+  <xs:element name="refsect2">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="refsect2info"/>
+        <xs:group ref="refsect.title.content"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="refcomponent.mix"/>
+            <xs:element minOccurs="0" maxOccurs="unbounded" ref="refsect3"/>
+          </xs:sequence>
+          <xs:element maxOccurs="unbounded" ref="refsect3"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="refsect2.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsect2.element -->
+  <xs:attributeGroup name="refsect2.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsect2.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsect2.attlist -->
+  <!-- end of refsect2.module -->
+  <xs:attributeGroup name="refsect3.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A subsection of a RefSect2. -->
+  <xs:element name="refsect3">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="refsect3info"/>
+        <xs:group ref="refsect.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="refcomponent.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="refsect3.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refsect3.element -->
+  <xs:attributeGroup name="refsect3.attlist">
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refsect3.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refsect3.attlist -->
+  <!-- end of refsect3.module -->
+  <!-- end of refentry.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Article .............................................................. -->
+  <!--
+    An Article is a chapter-level, stand-alone document that is often,
+    but need not be, collected into a Book.
+  -->
+  <xs:attributeGroup name="article.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An article. -->
+  <xs:element name="article" substitutionGroup="article.class"/>
+  <!-- end of article.element -->
+  <!--
+    Class: Indicates the type of a particular article;
+    all articles have the same structure and general purpose.
+    No default.
+  -->
+  <!-- ParentBook: ID of the enclosing Book -->
+  <xs:attributeGroup name="article.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="journalarticle"/>
+          <xs:enumeration value="productsheet"/>
+          <xs:enumeration value="whitepaper"/>
+          <xs:enumeration value="techreport"/>
+          <xs:enumeration value="specification"/>
+          <xs:enumeration value="faq"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="parentbook" type="xs:IDREF"/>
+    <xs:attributeGroup ref="status.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="article.role.attrib"/>
+  </xs:attributeGroup>
+</xs:schema>
+<!-- end of article.attlist -->
+<!-- end of article.module -->
+<!-- End of SCons DocBook V4.5-Based extension V1.0 XML document hierarchy module V4.5 -->
+<!-- ................................................................................. -->
diff --git a/doc/xsd/dbnotnx.xsd b/doc/xsd/dbnotnx.xsd
new file mode 100644
index 0000000..36f690f
--- /dev/null
+++ b/doc/xsd/dbnotnx.xsd
@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- ...................................................................... -->
+<!-- SCons DocBook V4.5-Based extension V1.0 XML notations ................ -->
+<!-- File dbnotnx.xsd ..................................................... -->
+<!-- Copyright (c) 2001-7,2010,2011,2012 The SCons Foundation
+
+     Permission is hereby granted, free of charge, to any person obtaining
+     a copy of this software and associated documentation files (the
+     "Software"), to deal in the Software without restriction, including
+     without limitation the rights to use, copy, modify, merge, publish,
+     distribute, sublicense, and/or sell copies of the Software, and to
+     permit persons to whom the Software is furnished to do so, subject to
+     the following conditions:
+
+     The above copyright notice and this permission notice shall be included
+     in all copies or substantial portions of the Software.
+
+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+     KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+     LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+     This DTD extension is based on the DocBook notations module V4.5 with:
+
+        Copyright 1992-2004 HaL Computer Systems, Inc.,
+        O'Reilly & Associates, Inc., ArborText, Inc., Fujitsu Software
+        Corporation, Norman Walsh, Sun Microsystems, Inc., and the
+        Organization for the Advancement of Structured Information
+        Standards (OASIS).
+  
+        $Id: dbnotnx.mod 6340 2006-10-03 13:23:24Z nwalsh $
+
+     Please direct all questions, bug reports, or suggestions for
+     changes to the docbook@lists.oasis-open.org mailing list. For more
+     information, see http://www.oasis-open.org/docbook/.
+     For the modified SCons extension files
+     
+        scons.xsd, dbpoolx.xsd, 
+
+     you can write to its developer mailing list. Check out 
+     http://www.scons.org/ and http://www.scons.org/lists.php.
+ 
+-->
+<!-- ...................................................................... -->
+<!--
+  This module contains the notation declarations used by DocBook.
+  
+  In DTD driver files referring to this module, please use an entity
+  declaration that uses the public identifier shown below:
+  
+  <!ENTITY % dbnotn PUBLIC
+  "-//OASIS//ENTITIES DocBook Notations V4.5//EN"
+  "dbnotnx.mod">
+  %dbnotn;
+  
+  See the documentation for detailed information on the parameter
+  entity and module scheme used in DocBook, customizing DocBook and
+  planning for interchange, and changes made since the last release
+  of DocBook.
+-->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
+  <xs:simpleType name="notation.class">
+    <xs:restriction base="xs:token">
+      <xs:enumeration value="BMP"/>
+      <xs:enumeration value="CGM-CHAR"/>
+      <xs:enumeration value="CGM-BINARY"/>
+      <xs:enumeration value="CGM-CLEAR"/>
+      <xs:enumeration value="DITROFF"/>
+      <xs:enumeration value="DVI"/>
+      <xs:enumeration value="EPS"/>
+      <xs:enumeration value="EQN"/>
+      <xs:enumeration value="FAX"/>
+      <xs:enumeration value="GIF"/>
+      <xs:enumeration value="GIF87a"/>
+      <xs:enumeration value="GIF89a"/>
+      <xs:enumeration value="JPG"/>
+      <xs:enumeration value="JPEG"/>
+      <xs:enumeration value="IGES"/>
+      <xs:enumeration value="PCX"/>
+      <xs:enumeration value="PIC"/>
+      <xs:enumeration value="PNG"/>
+      <xs:enumeration value="PS"/>
+      <xs:enumeration value="SGML"/>
+      <xs:enumeration value="TBL"/>
+      <xs:enumeration value="TEX"/>
+      <xs:enumeration value="TIFF"/>
+      <xs:enumeration value="WMF"/>
+      <xs:enumeration value="WPG"/>
+      <xs:enumeration value="SVG"/>
+      <xs:enumeration value="PDF"/>
+      <xs:enumeration value="SWF"/>
+      <xs:enumeration value="linespecific"/>
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>
+<!-- WordPerfect Graphic format -->
+<!-- End of SCons DocBook V4.5-Based extension V1.0 XML notations ......... -->
+<!-- ...................................................................... -->
diff --git a/doc/xsd/dbpoolx.xsd b/doc/xsd/dbpoolx.xsd
new file mode 100644
index 0000000..0ce5cb7
--- /dev/null
+++ b/doc/xsd/dbpoolx.xsd
@@ -0,0 +1,8682 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- ...................................................................... -->
+<!-- SCons DocBook V4.5-Based extension V1.0 XML information pool module .. -->
+<!-- File dbpoolx.xsd ..................................................... -->
+<!-- Copyright (c) 2001-7,2010,2011,2012 The SCons Foundation
+
+     Permission is hereby granted, free of charge, to any person obtaining
+     a copy of this software and associated documentation files (the
+     "Software"), to deal in the Software without restriction, including
+     without limitation the rights to use, copy, modify, merge, publish,
+     distribute, sublicense, and/or sell copies of the Software, and to
+     permit persons to whom the Software is furnished to do so, subject to
+     the following conditions:
+
+     The above copyright notice and this permission notice shall be included
+     in all copies or substantial portions of the Software.
+
+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+     KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+     LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+     This DTD extension is based on the Docbook XML information pool
+     module V4.5 with:
+     
+       Copyright 1992-2004 HaL Computer Systems, Inc.,
+       O'Reilly & Associates, Inc., ArborText, Inc., Fujitsu Software
+       Corporation, Norman Walsh, Sun Microsystems, Inc., and the
+       Organization for the Advancement of Structured Information
+       Standards (OASIS).
+  
+       $Id: dbpoolx.mod 6340 2006-10-03 13:23:24Z nwalsh $
+
+     Please direct all questions, bug reports, or suggestions for
+     changes to the docbook@lists.oasis-open.org mailing list. For more
+     information, see http://www.oasis-open.org/docbook/.
+     For the modified SCons extension files
+     
+        scons.xsd, dbpoolx.xsd, 
+
+     you can write to its developer mailing list. Check out 
+     http://www.scons.org/ and http://www.scons.org/lists.php.
+ 
+-->
+<!-- ...................................................................... -->
+<!--
+  This module contains the definitions for the objects, inline
+  elements, and so on that are available to be used as the main
+  content of DocBook documents.  Some elements are useful for general
+  publishing, and others are useful specifically for computer
+  documentation.
+  
+  This module has the following dependencies on other modules:
+  
+  o It assumes that a %notation.class; entity is defined by the
+    driver file or other high-level module.  This entity is
+    referenced in the NOTATION attributes for the graphic-related and
+    ModeSpec elements.
+  
+  o It assumes that an appropriately parameterized table module is
+    available for use with the table-related elements.
+  
+  In DTD driver files referring to this module, please use an entity
+  declaration that uses the public identifier shown below:
+  
+  <!ENTITY % dbpool PUBLIC
+  "-//OASIS//ELEMENTS DocBook XML Information Pool V4.5//EN"
+  "dbpoolx.mod">
+  %dbpool;
+  
+  See the documentation for detailed information on the parameter
+  entity and module scheme used in DocBook, customizing DocBook and
+  planning for interchange, and changes made since the last release
+  of DocBook.
+-->
+<!-- ...................................................................... -->
+<!-- Forms entities ....................................................... -->
+<!-- These PEs provide the hook by which the forms module can be inserted -->
+<!-- into the DTD. -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+  <xs:include schemaLocation="htmltblx.xsd"/>
+  <xs:include schemaLocation="calstblx.xsd"/>
+  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
+  <!-- ...................................................................... -->
+  <!-- General-purpose semantics entities ................................... -->
+  <xs:simpleType name="yesorno.attvals">
+    <xs:restriction base="xs:string"/>
+  </xs:simpleType>
+  <!-- ...................................................................... -->
+  <!-- Entities for module inclusions ....................................... -->
+  <!-- ...................................................................... -->
+  <!-- Entities for element classes and mixtures ............................ -->
+  <!-- "Ubiquitous" classes: ndxterm.class and beginpage -->
+  <xs:element name="ndxterm.class" abstract="true">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="primary"/>
+        <xs:choice minOccurs="0">
+          <xs:sequence>
+            <xs:element ref="secondary"/>
+            <xs:choice minOccurs="0">
+              <xs:sequence>
+                <xs:element ref="tertiary"/>
+                <xs:choice minOccurs="0">
+                  <xs:element ref="see"/>
+                  <xs:element maxOccurs="unbounded" ref="seealso"/>
+                </xs:choice>
+              </xs:sequence>
+              <xs:element ref="see"/>
+              <xs:element maxOccurs="unbounded" ref="seealso"/>
+            </xs:choice>
+          </xs:sequence>
+          <xs:element ref="see"/>
+          <xs:element maxOccurs="unbounded" ref="seealso"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="indexterm.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- Object-level classes ................................................. -->
+  <xs:element name="list.class" abstract="true"/>
+  <xs:element name="admon.class" abstract="true"/>
+  <xs:element name="linespecific.class" abstract="true"/>
+  <xs:element name="method.synop.class" abstract="true" substitutionGroup="synop.class"/>
+  <xs:element name="synop.class" abstract="true"/>
+  <xs:element name="para.class" abstract="true"/>
+  <xs:element name="informal.class" abstract="true"/>
+  <xs:element name="formal.class" abstract="true"/>
+  <!-- The DocBook TC may produce an official EBNF module for DocBook. -->
+  <!-- This PE provides the hook by which it can be inserted into the DTD. -->
+  <xs:element name="compound.class" abstract="true"/>
+  <xs:group name="genobj.class">
+    <xs:choice>
+      <xs:element ref="anchor"/>
+      <xs:element ref="bridgehead"/>
+      <xs:element ref="remark"/>
+      <xs:element ref="highlights"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="descobj.class">
+    <xs:choice>
+      <xs:element ref="abstract"/>
+      <xs:element ref="authorblurb"/>
+      <xs:element ref="epigraph"/>
+    </xs:choice>
+  </xs:group>
+  <!-- Character-level classes .............................................. -->
+  <xs:element name="xref.char.class" abstract="true"/>
+  <xs:element name="gen.char.class" abstract="true"/>
+  <xs:element name="link.char.class" abstract="true"/>
+  <!-- The DocBook TC may produce an official EBNF module for DocBook. -->
+  <!-- This PE provides the hook by which it can be inserted into the DTD. -->
+  <xs:element name="tech.char.class" abstract="true"/>
+  <xs:group name="base.char.class">
+    <xs:sequence>
+      <xs:element ref="anchor"/>
+    </xs:sequence>
+  </xs:group>
+  <xs:element name="docinfo.char.class" abstract="true"/>
+  <xs:group name="other.char.class">
+    <xs:choice>
+      <xs:element ref="remark"/>
+      <xs:element ref="subscript"/>
+      <xs:element ref="superscript"/>
+    </xs:choice>
+  </xs:group>
+  <xs:element name="inlineobj.char.class" abstract="true"/>
+  <!-- ...................................................................... -->
+  <!-- Entities for content models .......................................... -->
+  <xs:group name="formalobject.title.content">
+    <xs:sequence>
+      <xs:element ref="title"/>
+      <xs:element minOccurs="0" ref="titleabbrev"/>
+    </xs:sequence>
+  </xs:group>
+  <!-- Redeclaration placeholder ............................................ -->
+  <!--
+    For redeclaring entities that are declared after this point while
+    retaining their references to the entities that are declared before
+    this point
+  -->
+  <!-- Object-level mixtures ................................................ -->
+  <!--
+                          list admn line synp para infm form cmpd gen  desc
+    Component mixture       X    X    X    X    X    X    X    X    X    X
+    Sidebar mixture         X    X    X    X    X    X    X    a    X
+    Footnote mixture        X         X    X    X    X
+    Example mixture         X         X    X    X    X
+    Highlights mixture      X    X              X
+    Paragraph mixture       X         X    X         X
+    Admonition mixture      X         X    X    X    X    X    b    c
+    Figure mixture                    X    X         X
+    Table entry mixture     X    X    X         X    d
+    Glossary def mixture    X         X    X    X    X         e
+    Legal notice mixture    X    X    X         X    f
+    
+    a. Just Procedure; not Sidebar itself or MsgSet.
+    b. No MsgSet.
+    c. No Highlights.
+    d. Just Graphic; no other informal objects.
+    e. No Anchor, BridgeHead, or Highlights.
+    f. Just BlockQuote; no other informal objects.
+  -->
+  <xs:group name="component.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="compound.class"/>
+      <xs:group ref="genobj.class"/>
+      <xs:group ref="descobj.class"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="sidebar.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="procedure"/>
+      <xs:group ref="genobj.class"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="qandaset.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="procedure"/>
+      <xs:group ref="genobj.class"/>
+      <xs:element ref="ndxterm.class"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="revdescription.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="procedure"/>
+      <xs:group ref="genobj.class"/>
+      <xs:element ref="ndxterm.class"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="footnote.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="example.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+      <xs:element ref="procedure"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="highlights.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="ndxterm.class"/>
+    </xs:choice>
+  </xs:group>
+  <!--
+    %formal.class; is explicitly excluded from many contexts in which
+    paragraphs are used
+  -->
+  <xs:group name="para.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="sconstruct"/>
+      <xs:element ref="scons_example"/>
+      <xs:element ref="scons_example_file"/>
+      <xs:element ref="scons_output"/>
+      <xs:element ref="sconsdoc"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="summary.mix">
+    <xs:choice>
+      <xs:element ref="example_commands"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="tool.mix">
+    <xs:choice>
+      <xs:element ref="summary"/>
+      <xs:element ref="sets"/>
+      <xs:element ref="uses"/>
+    </xs:choice>  
+  </xs:group>
+  <xs:group name="scons_function.mix">
+    <xs:choice>
+      <xs:element ref="arguments"/>
+      <xs:element ref="summary"/>
+      <xs:element ref="sets"/>
+      <xs:element ref="uses"/>
+    </xs:choice>  
+  </xs:group>
+  <xs:group name="admon.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="procedure"/>
+      <xs:element ref="sidebar"/>
+      <xs:element ref="anchor"/>
+      <xs:element ref="bridgehead"/>
+      <xs:element ref="remark"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="figure.mix">
+    <xs:choice>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="tabentry.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="graphic"/>
+      <xs:element ref="mediaobject"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="glossdef.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:element ref="formal.class"/>
+      <xs:element ref="remark"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="legalnotice.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="blockquote"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="textobject.mix">
+    <xs:choice>
+      <xs:element ref="list.class"/>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="blockquote"/>
+    </xs:choice>
+  </xs:group>
+  <xs:element name="mediaobject.mix" abstract="true"/>
+  <xs:group name="listpreamble.mix">
+    <xs:choice>
+      <xs:element ref="admon.class"/>
+      <xs:element ref="linespecific.class"/>
+      <xs:element ref="synop.class"/>
+      <xs:element ref="para.class"/>
+      <xs:element ref="informal.class"/>
+      <xs:group ref="genobj.class"/>
+      <xs:group ref="descobj.class"/>
+      <xs:element ref="ndxterm.class"/>
+      <xs:element ref="beginpage"/>
+    </xs:choice>
+  </xs:group>
+  <!-- Character-level mixtures ............................................. -->
+  <!-- sgml.features -->
+  <!-- not [sgml.features[ -->
+  <!-- ]] not sgml.features -->
+  <!--
+                        #PCD xref word link cptr base dnfo othr inob (synop)
+    para.char.mix         X    X    X    X    X    X    X    X    X
+    title.char.mix        X    X    X    X    X    X    X    X    X
+    ndxterm.char.mix      X    X    X    X    X    X    X    X    a
+    cptr.char.mix         X              X    X    X         X    a
+    smallcptr.char.mix    X                   b                   a
+    word.char.mix         X         c    X         X         X    a
+    docinfo.char.mix      X         d    X    b              X    a
+    
+    a. Just InlineGraphic; no InlineEquation.
+    b. Just Replaceable; no other computer terms.
+    c. Just Emphasis and Trademark; no other word elements.
+    d. Just Acronym, Emphasis, and Trademark; no other word elements.
+  -->
+  <xs:group name="para.char.mix">
+    <xs:sequence>
+      <xs:choice minOccurs="0">
+        <xs:element ref="xref.char.class"/>
+        <xs:element ref="gen.char.class"/>
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="tech.char.class"/>
+        <xs:group ref="base.char.class"/>
+        <xs:element ref="docinfo.char.class"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="inlineobj.char.class"/>
+        <xs:element ref="synop.class"/>
+        <xs:element ref="ndxterm.class"/>
+        <xs:element ref="beginpage"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="title.char.mix">
+    <xs:sequence>
+      <xs:choice minOccurs="0">
+        <xs:element ref="xref.char.class"/>
+        <xs:element ref="gen.char.class"/>
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="tech.char.class"/>
+        <xs:group ref="base.char.class"/>
+        <xs:element ref="docinfo.char.class"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="inlineobj.char.class"/>
+        <xs:element ref="ndxterm.class"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="ndxterm.char.mix">
+    <xs:sequence>
+      <xs:choice minOccurs="0">
+        <xs:element ref="xref.char.class"/>
+        <xs:element ref="gen.char.class"/>
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="tech.char.class"/>
+        <xs:group ref="base.char.class"/>
+        <xs:element ref="docinfo.char.class"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="cptr.char.mix">
+    <xs:sequence>
+      <xs:choice minOccurs="0">
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="tech.char.class"/>
+        <xs:group ref="base.char.class"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+        <xs:element ref="ndxterm.class"/>
+        <xs:element ref="beginpage"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="smallcptr.char.mix">
+    <xs:sequence>
+      <xs:choice minOccurs="0">
+        <xs:element ref="replaceable"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+        <xs:element ref="ndxterm.class"/>
+        <xs:element ref="beginpage"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="word.char.mix">
+    <xs:sequence>
+      <xs:choice minOccurs="0">
+        <xs:element ref="acronym"/>
+        <xs:element ref="emphasis"/>
+        <xs:element ref="trademark"/>
+        <xs:element ref="link.char.class"/>
+        <xs:group ref="base.char.class"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+        <xs:element ref="ndxterm.class"/>
+        <xs:element ref="beginpage"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <xs:group name="docinfo.char.mix">
+    <xs:sequence>
+      <xs:choice minOccurs="0">
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="emphasis"/>
+        <xs:element ref="trademark"/>
+        <xs:element ref="replaceable"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+        <xs:element ref="ndxterm.class"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <!-- ENTITY % bibliocomponent.mix (see Bibliographic section, below) -->
+  <!-- ENTITY % person.ident.mix (see Bibliographic section, below) -->
+  <!-- ...................................................................... -->
+  <!-- Entities for attributes and attribute components ..................... -->
+  <!-- Effectivity attributes ............................................... -->
+  <!--
+    Arch: Computer or chip architecture to which element applies; no
+    default
+  -->
+  <xs:attributeGroup name="arch.attrib">
+    <xs:attribute name="arch"/>
+  </xs:attributeGroup>
+  <!-- Condition: General-purpose effectivity attribute -->
+  <xs:attributeGroup name="condition.attrib">
+    <xs:attribute name="condition"/>
+  </xs:attributeGroup>
+  <!-- Conformance: Standards conformance characteristics -->
+  <xs:attributeGroup name="conformance.attrib">
+    <xs:attribute name="conformance" type="xs:NMTOKENS"/>
+  </xs:attributeGroup>
+  <!-- OS: Operating system to which element applies; no default -->
+  <xs:attributeGroup name="os.attrib">
+    <xs:attribute name="os"/>
+  </xs:attributeGroup>
+  <!-- Revision: Editorial revision to which element belongs; no default -->
+  <xs:attributeGroup name="revision.attrib">
+    <xs:attribute name="revision"/>
+  </xs:attributeGroup>
+  <!-- Security: Security classification; no default -->
+  <xs:attributeGroup name="security.attrib">
+    <xs:attribute name="security"/>
+  </xs:attributeGroup>
+  <!--
+    UserLevel: Level of user experience to which element applies; no
+    default
+  -->
+  <xs:attributeGroup name="userlevel.attrib">
+    <xs:attribute name="userlevel"/>
+  </xs:attributeGroup>
+  <!-- Vendor: Computer vendor to which element applies; no default -->
+  <xs:attributeGroup name="vendor.attrib">
+    <xs:attribute name="vendor"/>
+  </xs:attributeGroup>
+  <!-- Wordsize: Computer word size (32 bit, 64 bit, etc.); no default -->
+  <xs:attributeGroup name="wordsize.attrib">
+    <xs:attribute name="wordsize"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="effectivity.attrib">
+    <xs:attributeGroup ref="arch.attrib"/>
+    <xs:attributeGroup ref="condition.attrib"/>
+    <xs:attributeGroup ref="conformance.attrib"/>
+    <xs:attributeGroup ref="os.attrib"/>
+    <xs:attributeGroup ref="revision.attrib"/>
+    <xs:attributeGroup ref="security.attrib"/>
+    <xs:attributeGroup ref="userlevel.attrib"/>
+    <xs:attributeGroup ref="vendor.attrib"/>
+    <xs:attributeGroup ref="wordsize.attrib"/>
+  </xs:attributeGroup>
+  <!-- Common attributes .................................................... -->
+  <!-- Id: Unique identifier of element; no default -->
+  <xs:attributeGroup name="id.attrib">
+    <xs:attribute name="id" type="xs:ID"/>
+  </xs:attributeGroup>
+  <!--
+    Id: Unique identifier of element; a value must be supplied; no
+    default
+  -->
+  <xs:attributeGroup name="idreq.attrib">
+    <xs:attribute name="id" use="required" type="xs:ID"/>
+  </xs:attributeGroup>
+  <!--
+    Lang: Indicator of language in which element is written, for
+    translation, character set management, etc.; no default
+  -->
+  <xs:attributeGroup name="lang.attrib">
+    <xs:attribute name="lang"/>
+  </xs:attributeGroup>
+  <!-- Remap: Previous role of element before conversion; no default -->
+  <xs:attributeGroup name="remap.attrib">
+    <xs:attribute name="remap"/>
+  </xs:attributeGroup>
+  <!-- Role: New role of element in local environment; no default -->
+  <xs:attributeGroup name="role.attrib">
+    <xs:attribute name="role"/>
+  </xs:attributeGroup>
+  <!--
+    XRefLabel: Alternate labeling string for XRef text generation;
+    default is usually title or other appropriate label text already
+    contained in element
+  -->
+  <xs:attributeGroup name="xreflabel.attrib">
+    <xs:attribute name="xreflabel"/>
+  </xs:attributeGroup>
+  <!--
+    RevisionFlag: Revision status of element; default is that element
+    wasn't revised
+  -->
+  <xs:attributeGroup name="revisionflag.attrib">
+    <xs:attribute name="revisionflag">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="changed"/>
+          <xs:enumeration value="added"/>
+          <xs:enumeration value="deleted"/>
+          <xs:enumeration value="off"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+  </xs:attributeGroup>
+  <!-- dir: Bidirectional override -->
+  <xs:attributeGroup name="dir.attrib">
+    <xs:attribute name="dir">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="ltr"/>
+          <xs:enumeration value="rtl"/>
+          <xs:enumeration value="lro"/>
+          <xs:enumeration value="rlo"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+  </xs:attributeGroup>
+  <!-- xml:base: base URI -->
+  <xs:attributeGroup name="xml-base.attrib">
+    <xs:attribute ref="xml:base"/>
+  </xs:attributeGroup>
+  <!-- Role is included explicitly on each element -->
+  <xs:attributeGroup name="common.attrib">
+    <xs:attributeGroup ref="id.attrib"/>
+    <xs:attributeGroup ref="lang.attrib"/>
+    <xs:attributeGroup ref="remap.attrib"/>
+    <xs:attributeGroup ref="xreflabel.attrib"/>
+    <xs:attributeGroup ref="revisionflag.attrib"/>
+    <xs:attributeGroup ref="effectivity.attrib"/>
+    <xs:attributeGroup ref="dir.attrib"/>
+    <xs:attributeGroup ref="xml-base.attrib"/>
+  </xs:attributeGroup>
+  <!-- Role is included explicitly on each element -->
+  <xs:attributeGroup name="idreq.common.attrib">
+    <xs:attributeGroup ref="idreq.attrib"/>
+    <xs:attributeGroup ref="lang.attrib"/>
+    <xs:attributeGroup ref="remap.attrib"/>
+    <xs:attributeGroup ref="xreflabel.attrib"/>
+    <xs:attributeGroup ref="revisionflag.attrib"/>
+    <xs:attributeGroup ref="effectivity.attrib"/>
+    <xs:attributeGroup ref="dir.attrib"/>
+    <xs:attributeGroup ref="xml-base.attrib"/>
+  </xs:attributeGroup>
+  <!-- Semi-common attributes and other attribute entities .................. -->
+  <!--
+    EntityRef: Name of an external entity containing the content
+    of the graphic
+  -->
+  <!--
+    FileRef: Filename, qualified by a pathname if desired,
+    designating the file containing the content of the graphic
+  -->
+  <!-- Format: Notation of the element content, if any -->
+  <!-- SrcCredit: Information about the source of the Graphic -->
+  <!-- Width: Same as CALS reprowid (desired width) -->
+  <!-- Depth: Same as CALS reprodep (desired depth) -->
+  <!--
+    Align: Same as CALS hplace with 'none' removed; #IMPLIED means
+    application-specific
+  -->
+  <!-- Scale: Conflation of CALS hscale and vscale -->
+  <!-- Scalefit: Same as CALS scalefit -->
+  <xs:attributeGroup name="graphics.attrib">
+    <xs:attribute name="entityref" type="xs:ENTITY"/>
+    <xs:attribute name="fileref"/>
+    <xs:attribute name="format" type="notation.class"/>
+    <xs:attribute name="srccredit"/>
+    <xs:attribute name="width"/>
+    <xs:attribute name="contentwidth"/>
+    <xs:attribute name="depth"/>
+    <xs:attribute name="contentdepth"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="center"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="scale"/>
+    <xs:attribute name="scalefit" type="yesorno.attvals"/>
+  </xs:attributeGroup>
+  <!--
+    Action: Key combination type; default is unspecified if one
+    child element, Simul if there is more than one; if value is
+    Other, the OtherAction attribute must have a nonempty value
+  -->
+  <!-- OtherAction: User-defined key combination type -->
+  <xs:attributeGroup name="keyaction.attrib">
+    <xs:attribute name="action">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="click"/>
+          <xs:enumeration value="double-click"/>
+          <xs:enumeration value="press"/>
+          <xs:enumeration value="seq"/>
+          <xs:enumeration value="simul"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="otheraction"/>
+  </xs:attributeGroup>
+  <!--
+    Label: Identifying number or string; default is usually the
+    appropriate number or string autogenerated by a formatter
+  -->
+  <xs:attributeGroup name="label.attrib">
+    <xs:attribute name="label"/>
+  </xs:attributeGroup>
+  <!-- xml:space: whitespace treatment -->
+  <xs:attributeGroup name="xml-space.attrib">
+    <xs:attribute ref="xml:space"/>
+  </xs:attributeGroup>
+  <!--
+    Format: whether element is assumed to contain significant white
+    space
+  -->
+  <xs:attributeGroup name="linespecific.attrib">
+    <xs:attribute name="format" default="linespecific">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="linespecific"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="xml-space.attrib"/>
+    <xs:attribute name="linenumbering">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="numbered"/>
+          <xs:enumeration value="unnumbered"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="continuation">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="continues"/>
+          <xs:enumeration value="restarts"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="startinglinenumber"/>
+    <xs:attribute name="language"/>
+  </xs:attributeGroup>
+  <!-- Linkend: link to related information; no default -->
+  <xs:attributeGroup name="linkend.attrib">
+    <xs:attribute name="linkend" type="xs:IDREF"/>
+  </xs:attributeGroup>
+  <!-- Linkend: required link to related information -->
+  <xs:attributeGroup name="linkendreq.attrib">
+    <xs:attribute name="linkend" use="required" type="xs:IDREF"/>
+  </xs:attributeGroup>
+  <!--
+    Linkends: link to one or more sets of related information; no
+    default
+  -->
+  <xs:attributeGroup name="linkends.attrib">
+    <xs:attribute name="linkends" type="xs:IDREFS"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="mark.attrib">
+    <xs:attribute name="mark"/>
+  </xs:attributeGroup>
+  <!-- MoreInfo: whether element's content has an associated RefEntry -->
+  <xs:attributeGroup name="moreinfo.attrib">
+    <xs:attribute name="moreinfo" default="none">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="refentry"/>
+          <xs:enumeration value="none"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+  </xs:attributeGroup>
+  <!-- Pagenum: number of page on which element appears; no default -->
+  <xs:attributeGroup name="pagenum.attrib">
+    <xs:attribute name="pagenum"/>
+  </xs:attributeGroup>
+  <!--
+    Status: Editorial or publication status of the element
+    it applies to, such as "in review" or "approved for distribution"
+  -->
+  <xs:attributeGroup name="status.attrib">
+    <xs:attribute name="status"/>
+  </xs:attributeGroup>
+  <!--
+    Width: width of the longest line in the element to which it
+    pertains, in number of characters
+  -->
+  <xs:attributeGroup name="width.attrib">
+    <xs:attribute name="width"/>
+  </xs:attributeGroup>
+  <!-- ...................................................................... -->
+  <!-- Title elements ....................................................... -->
+  <xs:attributeGroup name="title.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The text of the title of a section of a document or of a formal block-level element. -->
+  <xs:element name="title">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="title.char.mix"/>
+      <xs:attributeGroup ref="title.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of title.element -->
+  <xs:attributeGroup name="title.attlist">
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="title.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of title.attlist -->
+  <!-- end of title.module -->
+  <xs:attributeGroup name="titleabbrev.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The abbreviation of a Title. -->
+  <xs:element name="titleabbrev">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="title.char.mix"/>
+      <xs:attributeGroup ref="titleabbrev.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of titleabbrev.element -->
+  <xs:attributeGroup name="titleabbrev.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="titleabbrev.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of titleabbrev.attlist -->
+  <!-- end of titleabbrev.module -->
+  <xs:attributeGroup name="subtitle.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The subtitle of a document. -->
+  <xs:element name="subtitle">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="title.char.mix"/>
+      <xs:attributeGroup ref="subtitle.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of subtitle.element -->
+  <xs:attributeGroup name="subtitle.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="subtitle.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of subtitle.attlist -->
+  <!-- end of subtitle.module -->
+  <!-- ...................................................................... -->
+  <!-- Bibliographic entities and elements .................................. -->
+  <!--
+    The bibliographic elements are typically used in the document
+    hierarchy. They do not appear in content models of information
+    pool elements.  See also the document information elements,
+    below.
+  -->
+  <xs:group name="person.ident.mix">
+    <xs:choice>
+      <xs:element ref="honorific"/>
+      <xs:element ref="firstname"/>
+      <xs:element ref="surname"/>
+      <xs:element ref="lineage"/>
+      <xs:element ref="othername"/>
+      <xs:element ref="affiliation"/>
+      <xs:element ref="authorblurb"/>
+      <xs:element ref="contrib"/>
+    </xs:choice>
+  </xs:group>
+  <xs:group name="bibliocomponent.mix">
+    <xs:choice>
+      <xs:element ref="abbrev"/>
+      <xs:element ref="abstract"/>
+      <xs:element ref="address"/>
+      <xs:element ref="artpagenums"/>
+      <xs:element ref="author"/>
+      <xs:element ref="authorgroup"/>
+      <xs:element ref="authorinitials"/>
+      <xs:element ref="bibliomisc"/>
+      <xs:element ref="biblioset"/>
+      <xs:element ref="collab"/>
+      <xs:element ref="confgroup"/>
+      <xs:element ref="contractnum"/>
+      <xs:element ref="contractsponsor"/>
+      <xs:element ref="copyright"/>
+      <xs:element ref="corpauthor"/>
+      <xs:element ref="corpname"/>
+      <xs:element ref="corpcredit"/>
+      <xs:element ref="date"/>
+      <xs:element ref="edition"/>
+      <xs:element ref="editor"/>
+      <xs:element ref="invpartnumber"/>
+      <xs:element ref="isbn"/>
+      <xs:element ref="issn"/>
+      <xs:element ref="issuenum"/>
+      <xs:element ref="orgname"/>
+      <xs:element ref="biblioid"/>
+      <xs:element ref="citebiblioid"/>
+      <xs:element ref="bibliosource"/>
+      <xs:element ref="bibliorelation"/>
+      <xs:element ref="bibliocoverage"/>
+      <xs:element ref="othercredit"/>
+      <xs:element ref="pagenums"/>
+      <xs:element ref="printhistory"/>
+      <xs:element ref="productname"/>
+      <xs:element ref="productnumber"/>
+      <xs:element ref="pubdate"/>
+      <xs:element ref="publisher"/>
+      <xs:element ref="publishername"/>
+      <xs:element ref="pubsnumber"/>
+      <xs:element ref="releaseinfo"/>
+      <xs:element ref="revhistory"/>
+      <xs:element ref="seriesvolnums"/>
+      <xs:element ref="subtitle"/>
+      <xs:element ref="title"/>
+      <xs:element ref="titleabbrev"/>
+      <xs:element ref="volumenum"/>
+      <xs:element ref="citetitle"/>
+      <xs:element ref="personname"/>
+      <xs:group ref="person.ident.mix"/>
+      <xs:element ref="ndxterm.class"/>
+    </xs:choice>
+  </xs:group>
+  <!-- I don't think this is well placed, but it needs to be here because of -->
+  <!-- the reference to bibliocomponent.mix -->
+  <xs:group name="info.class">
+    <xs:choice>
+      <xs:element ref="graphic"/>
+      <xs:element ref="mediaobject"/>
+      <xs:element ref="legalnotice"/>
+      <xs:element ref="modespec"/>
+      <xs:element ref="subjectset"/>
+      <xs:element ref="keywordset"/>
+      <xs:element ref="itermset"/>
+      <xs:group ref="bibliocomponent.mix"/>
+    </xs:choice>
+  </xs:group>
+  <!-- BiblioList ........................ -->
+  <xs:attributeGroup name="bibliolist.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for a set of bibliography entries. -->
+  <xs:element name="bibliolist" substitutionGroup="list.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:choice maxOccurs="unbounded">
+          <xs:element ref="biblioentry"/>
+          <xs:element ref="bibliomixed"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="bibliolist.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliolist.element -->
+  <xs:attributeGroup name="bibliolist.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliolist.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliolist.attlist -->
+  <!-- end of bibliolist.module -->
+  <xs:attributeGroup name="biblioentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in a Bibliography. -->
+  <xs:element name="biblioentry">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="articleinfo"/>
+        <xs:group ref="bibliocomponent.mix"/>
+      </xs:choice>
+      <xs:attributeGroup ref="biblioentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of biblioentry.element -->
+  <xs:attributeGroup name="biblioentry.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="biblioentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of biblioentry.attlist -->
+  <!-- end of biblioentry.module -->
+  <xs:attributeGroup name="bibliomixed.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in a Bibliography. -->
+  <xs:element name="bibliomixed">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="bibliocomponent.mix"/>
+        <xs:element ref="bibliomset"/>
+      </xs:choice>
+      <xs:attributeGroup ref="bibliomixed.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliomixed.element -->
+  <xs:attributeGroup name="bibliomixed.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliomixed.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliomixed.attlist -->
+  <!-- end of bibliomixed.module -->
+  <xs:attributeGroup name="articleinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for an Article. -->
+  <xs:element name="articleinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="articleinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of articleinfo.element -->
+  <xs:attributeGroup name="articleinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="articleinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of articleinfo.attlist -->
+  <!-- end of articleinfo.module -->
+  <xs:attributeGroup name="biblioset.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A "raw" container for related bibliographic information. -->
+  <xs:element name="biblioset">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="bibliocomponent.mix"/>
+      <xs:attributeGroup ref="biblioset.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of biblioset.element -->
+  <!-- Relation: Relationship of elements contained within BiblioSet -->
+  <xs:attributeGroup name="biblioset.attlist">
+    <xs:attribute name="relation"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="biblioset.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of biblioset.attlist -->
+  <!-- end of biblioset.module -->
+  <xs:attributeGroup name="bibliomset.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A "cooked" container for related bibliographic information. -->
+  <xs:element name="bibliomset">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="bibliocomponent.mix"/>
+        <xs:element ref="bibliomset"/>
+      </xs:choice>
+      <xs:attributeGroup ref="bibliomset.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliomset.element -->
+  <!-- Relation: Relationship of elements contained within BiblioMSet -->
+  <xs:attributeGroup name="bibliomset.attlist">
+    <xs:attribute name="relation"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliomset.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliomset.attlist -->
+  <!-- end of bibliomset.module -->
+  <xs:attributeGroup name="bibliomisc.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Untyped bibliographic information. -->
+  <xs:element name="bibliomisc">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="bibliomisc.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliomisc.element -->
+  <xs:attributeGroup name="bibliomisc.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliomisc.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliomisc.attlist -->
+  <!-- end of bibliomisc.module -->
+  <!-- ...................................................................... -->
+  <!-- Subject, Keyword, and ITermSet elements .............................. -->
+  <xs:attributeGroup name="subjectset.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A set of terms describing the subject matter of a document. -->
+  <xs:element name="subjectset">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="subject"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="subjectset.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of subjectset.element -->
+  <!-- Scheme: Controlled vocabulary employed in SubjectTerms -->
+  <xs:attributeGroup name="subjectset.attlist">
+    <xs:attribute name="scheme" type="xs:NMTOKEN"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="subjectset.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of subjectset.attlist -->
+  <!-- end of subjectset.module -->
+  <xs:attributeGroup name="subject.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:One of a group of terms describing the subject matter of a document. -->
+  <xs:element name="subject">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="subjectterm"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="subject.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of subject.element -->
+  <!--
+    Weight: Ranking of this group of SubjectTerms relative
+    to others, 0 is low, no highest value specified
+  -->
+  <xs:attributeGroup name="subject.attlist">
+    <xs:attribute name="weight"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="subject.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of subject.attlist -->
+  <!-- end of subject.module -->
+  <xs:attributeGroup name="subjectterm.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A term in a group of terms describing the subject matter of a document. -->
+  <xs:element name="subjectterm">
+    <xs:complexType mixed="true">
+      <xs:attributeGroup ref="subjectterm.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of subjectterm.element -->
+  <xs:attributeGroup name="subjectterm.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="subjectterm.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of subjectterm.attlist -->
+  <!-- end of subjectterm.module -->
+  <!-- end of subjectset.content.module -->
+  <xs:attributeGroup name="keywordset.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A set of keywords describing the content of a document. -->
+  <xs:element name="keywordset">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="keyword"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="keywordset.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of keywordset.element -->
+  <xs:attributeGroup name="keywordset.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="keywordset.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of keywordset.attlist -->
+  <!-- end of keywordset.module -->
+  <xs:attributeGroup name="keyword.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:One of a set of keywords describing the content of a document. -->
+  <xs:element name="keyword">
+    <xs:complexType mixed="true">
+      <xs:attributeGroup ref="keyword.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of keyword.element -->
+  <xs:attributeGroup name="keyword.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="keyword.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of keyword.attlist -->
+  <!-- end of keyword.module -->
+  <!-- end of keywordset.content.module -->
+  <xs:attributeGroup name="itermset.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A set of index terms in the meta-information of a document. -->
+  <xs:element name="itermset">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="indexterm"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="itermset.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of itermset.element -->
+  <xs:attributeGroup name="itermset.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="itermset.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of itermset.attlist -->
+  <!-- end of itermset.module -->
+  <!-- Bibliographic info for "blocks" -->
+  <xs:attributeGroup name="blockinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a block element. -->
+  <xs:element name="blockinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="blockinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of blockinfo.element -->
+  <xs:attributeGroup name="blockinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="blockinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of blockinfo.attlist -->
+  <!-- end of blockinfo.module -->
+  <!-- ...................................................................... -->
+  <!-- Compound (section-ish) elements ...................................... -->
+  <!-- Message set ...................... -->
+  <xs:attributeGroup name="msgset.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A detailed set of messages, usually error messages. -->
+  <xs:element name="msgset" substitutionGroup="compound.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="msgentry"/>
+          <xs:element maxOccurs="unbounded" ref="simplemsgentry"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="msgset.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgset.element -->
+  <xs:attributeGroup name="msgset.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgset.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgset.attlist -->
+  <!-- end of msgset.module -->
+  <xs:attributeGroup name="msgentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for an entry in a message set. -->
+  <xs:element name="msgentry">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="msg"/>
+        <xs:element minOccurs="0" ref="msginfo"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="msgexplan"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="msgentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgentry.element -->
+  <xs:attributeGroup name="msgentry.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgentry.attlist -->
+  <!-- end of msgentry.module -->
+  <xs:attributeGroup name="simplemsgentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for a simpler entry in a message set. -->
+  <xs:element name="simplemsgentry">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="msgtext"/>
+        <xs:element maxOccurs="unbounded" ref="msgexplan"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="simplemsgentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of simplemsgentry.element -->
+  <xs:attributeGroup name="simplemsgentry.attlist">
+    <xs:attribute name="audience"/>
+    <xs:attribute name="level"/>
+    <xs:attribute name="origin"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="simplemsgentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of simplemsgentry.attlist -->
+  <!-- end of simplemsgentry.module -->
+  <xs:attributeGroup name="msg.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A message in a message set. -->
+  <xs:element name="msg">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:element ref="msgmain"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="msgsub"/>
+          <xs:element ref="msgrel"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="msg.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msg.element -->
+  <xs:attributeGroup name="msg.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msg.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msg.attlist -->
+  <!-- end of msg.module -->
+  <xs:attributeGroup name="msgmain.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The primary component of a message in a message set. -->
+  <xs:element name="msgmain">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:element ref="msgtext"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="msgmain.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgmain.element -->
+  <xs:attributeGroup name="msgmain.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgmain.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgmain.attlist -->
+  <!-- end of msgmain.module -->
+  <xs:attributeGroup name="msgsub.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A subcomponent of a message in a message set. -->
+  <xs:element name="msgsub">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:element ref="msgtext"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="msgsub.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgsub.element -->
+  <xs:attributeGroup name="msgsub.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgsub.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgsub.attlist -->
+  <!-- end of msgsub.module -->
+  <xs:attributeGroup name="msgrel.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A related component of a message in a message set. -->
+  <xs:element name="msgrel">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:element ref="msgtext"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="msgrel.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgrel.element -->
+  <xs:attributeGroup name="msgrel.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgrel.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgrel.attlist -->
+  <!-- end of msgrel.module -->
+  <!-- MsgText (defined in the Inlines section, below) -->
+  <xs:attributeGroup name="msginfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Information about a message in a message set. -->
+  <xs:element name="msginfo">
+    <xs:complexType>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="msglevel"/>
+        <xs:element ref="msgorig"/>
+        <xs:element ref="msgaud"/>
+      </xs:choice>
+      <xs:attributeGroup ref="msginfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msginfo.element -->
+  <xs:attributeGroup name="msginfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msginfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msginfo.attlist -->
+  <!-- end of msginfo.module -->
+  <xs:attributeGroup name="msglevel.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The level of importance or severity of a message in a message set. -->
+  <xs:element name="msglevel">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="msglevel.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msglevel.element -->
+  <xs:attributeGroup name="msglevel.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msglevel.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msglevel.attlist -->
+  <!-- end of msglevel.module -->
+  <xs:attributeGroup name="msgorig.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The origin of a message in a message set. -->
+  <xs:element name="msgorig">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="msgorig.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgorig.element -->
+  <xs:attributeGroup name="msgorig.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgorig.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgorig.attlist -->
+  <!-- end of msgorig.module -->
+  <xs:attributeGroup name="msgaud.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The audience to which a message in a message set is relevant. -->
+  <xs:element name="msgaud">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="msgaud.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgaud.element -->
+  <xs:attributeGroup name="msgaud.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgaud.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgaud.attlist -->
+  <!-- end of msgaud.module -->
+  <xs:attributeGroup name="msgexplan.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Explanatory material relating to a message in a message set. -->
+  <xs:element name="msgexplan">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:group maxOccurs="unbounded" ref="component.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="msgexplan.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgexplan.element -->
+  <xs:attributeGroup name="msgexplan.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgexplan.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgexplan.attlist -->
+  <!-- end of msgexplan.module -->
+  <!-- end of msgset.content.module -->
+  <xs:attributeGroup name="task.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A task to be completed. -->
+  <xs:element name="task" substitutionGroup="compound.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="ndxterm.class"/>
+        <xs:group ref="formalobject.title.content"/>
+        <xs:element minOccurs="0" ref="tasksummary"/>
+        <xs:element minOccurs="0" ref="taskprerequisites"/>
+        <xs:element ref="procedure"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="example"/>
+        <xs:element minOccurs="0" ref="taskrelated"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="task.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of task.element -->
+  <xs:attributeGroup name="task.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="task.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of task.attlist -->
+  <!-- end of task.module -->
+  <xs:attributeGroup name="tasksummary.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A summary of a task. -->
+  <xs:element name="tasksummary">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="component.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="tasksummary.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tasksummary.element -->
+  <xs:attributeGroup name="tasksummary.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="tasksummary.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tasksummary.attlist -->
+  <!-- end of tasksummary.module -->
+  <xs:attributeGroup name="taskprerequisites.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The prerequisites for a task. -->
+  <xs:element name="taskprerequisites">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="component.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="taskprerequisites.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of taskprerequisites.element -->
+  <xs:attributeGroup name="taskprerequisites.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="taskprerequisites.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of taskprerequisites.attlist -->
+  <!-- end of taskprerequisites.module -->
+  <xs:attributeGroup name="taskrelated.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Information related to a task. -->
+  <xs:element name="taskrelated">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="component.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="taskrelated.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of taskrelated.element -->
+  <xs:attributeGroup name="taskrelated.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="taskrelated.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of taskrelated.attlist -->
+  <!-- end of taskrelated.module -->
+  <!-- end of task.content.module -->
+  <!-- QandASet ........................ -->
+  <xs:attributeGroup name="qandaset.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A question-and-answer set. -->
+  <xs:element name="qandaset" substitutionGroup="compound.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="qandaset.mix"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="qandadiv"/>
+          <xs:element maxOccurs="unbounded" ref="qandaentry"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="qandaset.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of qandaset.element -->
+  <xs:attributeGroup name="qandaset.attlist">
+    <xs:attribute name="defaultlabel">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="qanda"/>
+          <xs:enumeration value="number"/>
+          <xs:enumeration value="none"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="qandaset.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of qandaset.attlist -->
+  <!-- end of qandaset.module -->
+  <xs:attributeGroup name="qandadiv.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A titled division in a QandASet. -->
+  <xs:element name="qandadiv">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="qandaset.mix"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="qandadiv"/>
+          <xs:element maxOccurs="unbounded" ref="qandaentry"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="qandadiv.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of qandadiv.element -->
+  <xs:attributeGroup name="qandadiv.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="qandadiv.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of qandadiv.attlist -->
+  <!-- end of qandadiv.module -->
+  <xs:attributeGroup name="qandaentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A question/answer set within a QandASet. -->
+  <xs:element name="qandaentry">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:element minOccurs="0" ref="revhistory"/>
+        <xs:element ref="question"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="answer"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="qandaentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of qandaentry.element -->
+  <xs:attributeGroup name="qandaentry.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="qandaentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of qandaentry.attlist -->
+  <!-- end of qandaentry.module -->
+  <xs:attributeGroup name="question.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A question in a QandASet. -->
+  <xs:element name="question">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="label"/>
+        <xs:group maxOccurs="unbounded" ref="qandaset.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="question.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of question.element -->
+  <xs:attributeGroup name="question.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="question.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of question.attlist -->
+  <!-- end of question.module -->
+  <xs:attributeGroup name="answer.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An answer to a question posed in a QandASet. -->
+  <xs:element name="answer">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="label"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="qandaset.mix"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="qandaentry"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="answer.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of answer.element -->
+  <xs:attributeGroup name="answer.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="answer.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of answer.attlist -->
+  <!-- end of answer.module -->
+  <xs:attributeGroup name="label.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A label on a Question or Answer. -->
+  <xs:element name="label">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="word.char.mix"/>
+      <xs:attributeGroup ref="label.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of label.element -->
+  <xs:attributeGroup name="label.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="label.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of label.attlist -->
+  <!-- end of label.module -->
+  <!-- end of qandaset.content.module -->
+  <!-- Procedure ........................ -->
+  <xs:attributeGroup name="procedure.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list of operations to be performed in a well-defined sequence. -->
+  <xs:element name="procedure" substitutionGroup="compound.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+        <xs:element maxOccurs="unbounded" ref="step"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="procedure.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of procedure.element -->
+  <xs:attributeGroup name="procedure.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="procedure.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of procedure.attlist -->
+  <!-- end of procedure.module -->
+  <xs:attributeGroup name="step.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A unit of action in a procedure. -->
+  <xs:element name="step">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:group maxOccurs="unbounded" ref="component.mix"/>
+            <xs:sequence minOccurs="0">
+              <xs:choice>
+                <xs:element ref="substeps"/>
+                <xs:element ref="stepalternatives"/>
+              </xs:choice>
+              <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+            </xs:sequence>
+          </xs:sequence>
+          <xs:sequence>
+            <xs:choice>
+              <xs:element ref="substeps"/>
+              <xs:element ref="stepalternatives"/>
+            </xs:choice>
+            <xs:group minOccurs="0" maxOccurs="unbounded" ref="component.mix"/>
+          </xs:sequence>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="step.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of step.element -->
+  <!-- Performance: Whether the Step must be performed -->
+  <!-- not #REQUIRED! -->
+  <xs:attributeGroup name="step.attlist">
+    <xs:attribute name="performance" default="required">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="optional"/>
+          <xs:enumeration value="required"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="step.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of step.attlist -->
+  <!-- end of step.module -->
+  <xs:attributeGroup name="substeps.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for steps that occur within steps in a procedure. -->
+  <xs:element name="substeps">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="step"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="substeps.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of substeps.element -->
+  <!-- Performance: whether entire set of substeps must be performed -->
+  <!-- not #REQUIRED! -->
+  <xs:attributeGroup name="substeps.attlist">
+    <xs:attribute name="performance" default="required">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="optional"/>
+          <xs:enumeration value="required"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="substeps.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of substeps.attlist -->
+  <!-- end of substeps.module -->
+  <xs:attributeGroup name="stepalternatives.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Alternative steps in a procedure. -->
+  <xs:element name="stepalternatives">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="step"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="stepalternatives.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of stepalternatives.element -->
+  <!-- Performance: Whether (one of) the alternatives must be performed -->
+  <!-- not #REQUIRED! -->
+  <xs:attributeGroup name="stepalternatives.attlist">
+    <xs:attribute name="performance" default="required">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="optional"/>
+          <xs:enumeration value="required"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="stepalternatives.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of stepalternatives.attlist -->
+  <!-- end of stepalternatives.module -->
+  <!-- end of procedure.content.module -->
+  <!-- Sidebar .......................... -->
+  <xs:attributeGroup name="sidebarinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for a Sidebar. -->
+  <xs:element name="sidebarinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="sidebarinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sidebarinfo.element -->
+  <xs:attributeGroup name="sidebarinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sidebarinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sidebarinfo.attlist -->
+  <!-- end of sidebarinfo.module -->
+  <xs:attributeGroup name="sidebar.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A portion of a document that is isolated from the main narrative flow. -->
+  <xs:element name="sidebar" substitutionGroup="compound.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="sidebarinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="sidebar.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="sidebar.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sidebar.element -->
+  <xs:attributeGroup name="sidebar.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sidebar.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sidebar.attlist -->
+  <!-- end of sidebar.module -->
+  <!-- end of sidebar.content.model -->
+  <!-- ...................................................................... -->
+  <!-- Paragraph-related elements ........................................... -->
+  <xs:attributeGroup name="abstract.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A summary. -->
+  <xs:element name="abstract">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:element maxOccurs="unbounded" ref="para.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="abstract.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of abstract.element -->
+  <xs:attributeGroup name="abstract.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="abstract.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of abstract.attlist -->
+  <!-- end of abstract.module -->
+  <xs:attributeGroup name="authorblurb.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A short description or note about an author. -->
+  <xs:element name="authorblurb">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:element maxOccurs="unbounded" ref="para.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="authorblurb.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of authorblurb.element -->
+  <xs:attributeGroup name="authorblurb.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="authorblurb.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of authorblurb.attlist -->
+  <!-- end of authorblurb.module -->
+  <xs:attributeGroup name="personblurb.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A short description or note about a person. -->
+  <xs:element name="personblurb">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:element maxOccurs="unbounded" ref="para.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="personblurb.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of personblurb.element -->
+  <xs:attributeGroup name="personblurb.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="personblurb.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of personblurb.attlist -->
+  <!-- end of personblurb.module -->
+  <xs:attributeGroup name="blockquote.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A quotation set off from the main text. -->
+  <xs:element name="blockquote" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:element minOccurs="0" ref="attribution"/>
+        <xs:group maxOccurs="unbounded" ref="component.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="blockquote.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of blockquote.element -->
+  <xs:attributeGroup name="blockquote.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="blockquote.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of blockquote.attlist -->
+  <!-- end of blockquote.module -->
+  <xs:attributeGroup name="attribution.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The source of a block quote or epigraph. -->
+  <xs:element name="attribution">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="attribution.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of attribution.element -->
+  <xs:attributeGroup name="attribution.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="attribution.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of attribution.attlist -->
+  <!-- end of attribution.module -->
+  <xs:attributeGroup name="bridgehead.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A free-floating heading. -->
+  <xs:element name="bridgehead">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="title.char.mix"/>
+      <xs:attributeGroup ref="bridgehead.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bridgehead.element -->
+  <!--
+    Renderas: Indicates the format in which the BridgeHead
+    should appear
+  -->
+  <xs:attributeGroup name="bridgehead.attlist">
+    <xs:attribute name="renderas">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="other"/>
+          <xs:enumeration value="sect1"/>
+          <xs:enumeration value="sect2"/>
+          <xs:enumeration value="sect3"/>
+          <xs:enumeration value="sect4"/>
+          <xs:enumeration value="sect5"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bridgehead.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bridgehead.attlist -->
+  <!-- end of bridgehead.module -->
+  <xs:attributeGroup name="remark.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A remark (or comment) intended for presentation in a draft manuscript. -->
+  <xs:element name="remark">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="remark.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of remark.element -->
+  <xs:attributeGroup name="remark.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="remark.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of remark.attlist -->
+  <!-- end of remark.module -->
+  <xs:attributeGroup name="epigraph.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A short inscription at the beginning of a document or component. -->
+  <xs:element name="epigraph">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="attribution"/>
+        <xs:choice maxOccurs="unbounded">
+          <xs:element ref="para.class"/>
+          <xs:element ref="literallayout"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="epigraph.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of epigraph.element -->
+  <xs:attributeGroup name="epigraph.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="epigraph.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of epigraph.attlist -->
+  <!-- Attribution (defined above) -->
+  <!-- end of epigraph.module -->
+  <xs:attributeGroup name="footnote.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A footnote. -->
+  <xs:element name="footnote" substitutionGroup="gen.char.class">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="footnote.mix"/>
+      <xs:attributeGroup ref="footnote.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of footnote.element -->
+  <xs:attributeGroup name="footnote.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="footnote.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of footnote.attlist -->
+  <!-- end of footnote.module -->
+  <xs:attributeGroup name="highlights.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A summary of the main points of the discussed component. -->
+  <xs:element name="highlights">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="highlights.mix"/>
+      <xs:attributeGroup ref="highlights.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of highlights.element -->
+  <xs:attributeGroup name="highlights.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="highlights.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of highlights.attlist -->
+  <!-- end of highlights.module -->
+  <xs:attributeGroup name="formalpara.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A paragraph with a title. -->
+  <xs:element name="formalpara" substitutionGroup="para.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="title"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="ndxterm.class"/>
+        <xs:element ref="para"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="formalpara.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of formalpara.element -->
+  <xs:attributeGroup name="formalpara.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="formalpara.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of formalpara.attlist -->
+  <!-- end of formalpara.module -->
+  <xs:attributeGroup name="para.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A paragraph. -->
+  <xs:element name="para" substitutionGroup="para.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:group ref="para.mix"/>
+      </xs:choice>
+      <xs:attributeGroup ref="para.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of para.element -->
+  <xs:attributeGroup name="para.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="para.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of para.attlist -->
+  <!-- end of para.module -->
+  <xs:attributeGroup name="simpara.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A paragraph that contains only text and inline markup, no block elements. -->
+  <xs:element name="simpara" substitutionGroup="para.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="simpara.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of simpara.element -->
+  <xs:attributeGroup name="simpara.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="simpara.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of simpara.attlist -->
+  <!-- end of simpara.module -->
+  <xs:attributeGroup name="sconstruct.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An SConstruct example file. -->
+  <xs:element name="sconstruct" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="lineannotation"/>
+        <xs:element ref="textobject"/>
+      </xs:choice>
+      <xs:attributeGroup ref="sconstruct.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sconstruct.element -->
+  <xs:attributeGroup name="sconstruct.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sconstruct.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sconstruct.attlist -->
+  <!-- end of sconstruct.module -->
+  <xs:attributeGroup name="scons_example.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An SCons example. -->
+  <xs:element name="scons_example" substitutionGroup="linespecific.class">
+    <xs:complexType>
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="file"/>
+        <xs:element ref="directory"/>
+      </xs:choice>
+      <xs:attributeGroup ref="scons_example.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of scons_example.element -->
+  <xs:attributeGroup name="scons_example.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="scons_example.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" use="required" />
+    <xs:attribute name="printme" type="xs:int" use="optional" />
+  </xs:attributeGroup>
+  <!-- end of scons_example.attlist -->
+  <!-- end of scons_example.module -->
+  <xs:attributeGroup name="file.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An SCons example file. -->
+  <xs:element name="file" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="lineannotation"/>
+        <xs:element ref="textobject"/>
+      </xs:choice>
+      <xs:attributeGroup ref="file.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of file.element -->
+  <xs:attributeGroup name="file.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="file.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" use="required" />
+    <xs:attribute name="example" type="xs:string" use="optional" />
+    <xs:attribute name="chmod" type="xs:string" use="optional" />
+    <xs:attribute name="printme" type="xs:int" use="optional" />
+  </xs:attributeGroup>
+  <!-- end of file.attlist -->
+  <!-- end of file.module -->
+  <xs:attributeGroup name="directory.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An SCons example directory. -->
+  <xs:element name="directory" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="lineannotation"/>
+        <xs:element ref="textobject"/>
+      </xs:choice>
+      <xs:attributeGroup ref="directory.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of directory.element -->
+  <xs:attributeGroup name="directory.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="directory.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" use="required" />
+  </xs:attributeGroup>
+  <!-- end of directory.attlist -->
+  <!-- end of directory.module -->
+  <xs:attributeGroup name="scons_example_file.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A SCons example file. -->
+  <xs:element name="scons_example_file" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="lineannotation"/>
+        <xs:element ref="textobject"/>
+      </xs:choice>
+      <xs:attributeGroup ref="scons_example_file.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of scons_example_file.element -->
+  <xs:attributeGroup name="scons_example_file.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="scons_example_file.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" use="required" />
+    <xs:attribute name="example" type="xs:string" use="required" />
+  </xs:attributeGroup>
+  <!-- end of scons_example_file.attlist -->
+  <!-- end of scons_example_file.module -->
+  <xs:attributeGroup name="scons_output.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The output of a SCons command/example. -->
+  <xs:element name="scons_output" substitutionGroup="linespecific.class">
+    <xs:complexType>
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="scons_output_command"/>
+      </xs:choice>
+      <xs:attributeGroup ref="scons_output.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of scons_output.element -->
+  <xs:attributeGroup name="scons_output.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="scons_output.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" />
+    <xs:attribute name="tools" type="xs:string" />
+    <xs:attribute name="example" type="xs:string" use="required" />
+    <xs:attribute name="suffix" type="xs:string" use="required" />
+  </xs:attributeGroup>
+  <!-- end of scons_output.attlist -->
+  <!-- end of scons_output.module -->
+  <xs:attributeGroup name="scons_output_command.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A SCons example file. -->
+  <xs:element name="scons_output_command" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="lineannotation"/>
+        <xs:element ref="textobject"/>
+      </xs:choice>
+      <xs:attributeGroup ref="scons_output_command.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of scons_output_command.element -->
+  <xs:attributeGroup name="scons_output_command.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="scons_output_command.role.attrib"/>
+    <xs:attribute name="edit" type="xs:string" use="optional" />
+    <xs:attribute name="environment" type="xs:string" use="optional" />
+    <xs:attribute name="output" type="xs:string" use="optional" />
+  </xs:attributeGroup>
+  <!-- end of scons_output_command.attlist -->
+  <!-- end of scons_output_command.module -->
+  <xs:attributeGroup name="sconsdoc.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A sconsdoc. -->
+  <xs:element name="sconsdoc" substitutionGroup="para.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="tool"/>
+        <xs:element ref="builder"/>
+        <xs:element ref="scons_function"/>
+        <xs:element ref="cvar"/>
+      </xs:choice>
+      <xs:attributeGroup ref="sconsdoc.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sconsdoc.element -->
+  <xs:attributeGroup name="sconsdoc.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sconsdoc.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sconsdoc.attlist -->
+  <!-- end of sconsdoc.module -->
+  <xs:attributeGroup name="example_commands.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Text that a user sees or might see on a computer screen. -->
+  <xs:element name="example_commands" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="textobject"/>
+        <xs:element ref="lineannotation"/>
+      </xs:choice>
+      <xs:attributeGroup ref="example_commands.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of example_commands.element -->
+  <xs:attributeGroup name="example_commands.attlist">
+    <xs:attributeGroup ref="width.attrib"/>
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="example_commands.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of example_commands.attlist -->
+  <!-- end of example_commands.module -->
+  <xs:attributeGroup name="summary.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A summary. -->
+  <xs:element name="summary" substitutionGroup="para.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="component.mix"/>
+        <xs:group ref="summary.mix"/>
+      </xs:choice>
+      <xs:attributeGroup ref="summary.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of summary.element -->
+  <xs:attributeGroup name="summary.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="summary.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of summary.attlist -->
+  <!-- end of summary.module -->
+  
+  <xs:attributeGroup name="item.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A item. -->
+  <xs:element name="item">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="item.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of item.element -->
+  <xs:attributeGroup name="item.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="item.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of item.attlist -->
+  <!-- end of item.module -->
+  <xs:attributeGroup name="sets.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list in which each entry is marked with a bullet or other dingbat. -->
+  <xs:element name="sets" substitutionGroup="list.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="listpreamble.mix"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="item"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="sets.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sets.element -->
+  <!--
+    Spacing: Whether the vertical space in the list should be
+    compressed
+  -->
+  <!--
+    Mark: Keyword, e.g., bullet, dash, checkbox, none;
+    list of keywords and defaults are implementation specific
+  -->
+  <xs:attributeGroup name="sets.attlist">
+    <xs:attribute name="spacing">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="normal"/>
+          <xs:enumeration value="compact"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="mark.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sets.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sets.attlist -->
+  <!-- end of sets.module -->
+  <xs:attributeGroup name="uses.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list in which each entry is marked with a bullet or other dingbat. -->
+  <xs:element name="uses" substitutionGroup="list.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="listpreamble.mix"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="item"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="uses.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of uses.element -->
+  <!--
+    Spacing: Whether the vertical space in the list should be
+    compressed
+  -->
+  <!--
+    Mark: Keyword, e.g., bullet, dash, checkbox, none;
+    list of keywords and defaults are implementation specific
+  -->
+  <xs:attributeGroup name="uses.attlist">
+    <xs:attribute name="spacing">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="normal"/>
+          <xs:enumeration value="compact"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="mark.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="uses.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of uses.attlist -->
+  <!-- end of uses.module -->
+  <xs:attributeGroup name="tool.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A paragraph. -->
+  <xs:element name="tool" substitutionGroup="para.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.mix"/>
+        <xs:group ref="tool.mix"/>
+      </xs:choice>
+      <xs:attributeGroup ref="tool.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tool.element -->
+  <xs:attributeGroup name="tool.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="tool.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" use="required" />
+  </xs:attributeGroup>
+  <!-- end of tool.attlist -->
+  <!-- end of tool.module -->
+  <xs:attributeGroup name="builder.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A paragraph. -->
+  <xs:element name="builder" substitutionGroup="para.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.mix"/>
+        <xs:group ref="tool.mix"/>
+      </xs:choice>
+      <xs:attributeGroup ref="builder.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of builder.element -->
+  <xs:attributeGroup name="builder.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="builder.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" use="required" />
+  </xs:attributeGroup>
+  <!-- end of builder.attlist -->
+  <!-- end of builder.module -->
+  
+  <xs:attributeGroup name="cvar.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A paragraph. -->
+  <xs:element name="cvar" substitutionGroup="para.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.mix"/>
+        <xs:element ref="summary"/>
+      </xs:choice>
+      <xs:attributeGroup ref="cvar.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of cvar.element -->
+  <xs:attributeGroup name="cvar.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="cvar.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" use="required" />
+  </xs:attributeGroup>
+  <!-- end of cvar.attlist -->
+  <!-- end of cvar.module -->
+  <xs:attributeGroup name="arguments.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A general-purpose element for representing the syntax of commands or functions. -->
+  <xs:element name="arguments" substitutionGroup="synop.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="graphic"/>
+        <xs:element ref="mediaobject"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="textobject"/>
+        <xs:element ref="lineannotation"/>
+      </xs:choice>
+      <xs:attributeGroup ref="arguments.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of arguments.element -->
+  <xs:attributeGroup name="arguments.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="arguments.role.attrib"/>
+    <xs:attribute name="signature" type="xs:string" use="optional" />
+    <xs:attribute name="both" type="xs:string" use="optional" />
+  </xs:attributeGroup>
+  <!-- end of arguments.attlist -->
+  <!-- end of arguments.module -->
+  <xs:attributeGroup name="scons_function.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A paragraph. -->
+  <xs:element name="scons_function" substitutionGroup="para.class">
+    <xs:complexType mixed="true">
+      <xs:annotation>
+        <xs:documentation xml:lang="en">
+          TODO
+        </xs:documentation>
+      </xs:annotation>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:group ref="para.mix"/>
+        <xs:group ref="scons_function.mix"/>
+      </xs:choice>
+      <xs:attributeGroup ref="scons_function.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of scons_function.element -->
+  <xs:attributeGroup name="scons_function.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="scons_function.role.attrib"/>
+    <xs:attribute name="name" type="xs:string" use="required" />
+  </xs:attributeGroup>
+  <!-- end of scons_function.attlist -->
+  <!-- end of scons_function.module -->
+  <xs:attributeGroup name="admon.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A note of caution. -->
+  <xs:element name="caution" substitutionGroup="admon.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:group maxOccurs="unbounded" ref="admon.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="caution.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of caution.element -->
+  <xs:attributeGroup name="caution.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="admon.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of caution.attlist -->
+  <!-- doc:An admonition set off from the text. -->
+  <xs:element name="important" substitutionGroup="admon.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:group maxOccurs="unbounded" ref="admon.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="important.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of important.element -->
+  <xs:attributeGroup name="important.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="admon.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of important.attlist -->
+  <!-- doc:A message set off from the text. -->
+  <xs:element name="note" substitutionGroup="admon.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:group maxOccurs="unbounded" ref="admon.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="note.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of note.element -->
+  <xs:attributeGroup name="note.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="admon.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of note.attlist -->
+  <!-- doc:A suggestion to the user, set off from the text. -->
+  <xs:element name="tip" substitutionGroup="admon.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:group maxOccurs="unbounded" ref="admon.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="tip.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tip.element -->
+  <xs:attributeGroup name="tip.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="admon.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tip.attlist -->
+  <!-- doc:An admonition set off from the text. -->
+  <xs:element name="warning" substitutionGroup="admon.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:group maxOccurs="unbounded" ref="admon.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="warning.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of warning.element -->
+  <xs:attributeGroup name="warning.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="admon.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of warning.attlist -->
+  <!-- end of admon.module -->
+  <!-- ...................................................................... -->
+  <!-- Lists ................................................................ -->
+  <!-- GlossList ........................ -->
+  <xs:attributeGroup name="glosslist.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for a set of GlossEntrys. -->
+  <xs:element name="glosslist" substitutionGroup="list.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:element maxOccurs="unbounded" ref="glossentry"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="glosslist.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glosslist.element -->
+  <xs:attributeGroup name="glosslist.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glosslist.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glosslist.attlist -->
+  <!-- end of glosslist.module -->
+  <xs:attributeGroup name="glossentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry in a Glossary or GlossList. -->
+  <xs:element name="glossentry">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="glossterm"/>
+        <xs:element minOccurs="0" ref="acronym"/>
+        <xs:element minOccurs="0" ref="abbrev"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="ndxterm.class"/>
+        <xs:element minOccurs="0" ref="revhistory"/>
+        <xs:choice>
+          <xs:element ref="glosssee"/>
+          <xs:element maxOccurs="unbounded" ref="glossdef"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="glossentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glossentry.element -->
+  <!--
+    SortAs: String by which the GlossEntry is to be sorted
+    (alphabetized) in lieu of its proper content
+  -->
+  <xs:attributeGroup name="glossentry.attlist">
+    <xs:attribute name="sortas"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glossentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glossentry.attlist -->
+  <!-- end of glossentry.module -->
+  <!-- GlossTerm (defined in the Inlines section, below) -->
+  <xs:attributeGroup name="glossdef.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A definition in a GlossEntry. -->
+  <xs:element name="glossdef">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group maxOccurs="unbounded" ref="glossdef.mix"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="glossseealso"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="glossdef.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glossdef.element -->
+  <!-- Subject: List of subjects; keywords for the definition -->
+  <xs:attributeGroup name="glossdef.attlist">
+    <xs:attribute name="subject"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glossdef.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glossdef.attlist -->
+  <!-- end of glossdef.module -->
+  <xs:attributeGroup name="glosssee.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A cross-reference from one GlossEntry to another. -->
+  <xs:element name="glosssee">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="glosssee.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glosssee.element -->
+  <!--
+    OtherTerm: Reference to the GlossEntry whose GlossTerm
+    should be displayed at the point of the GlossSee
+  -->
+  <xs:attributeGroup name="glosssee.attlist">
+    <xs:attribute name="otherterm" type="xs:IDREF"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glosssee.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glosssee.attlist -->
+  <!-- end of glosssee.module -->
+  <xs:attributeGroup name="glossseealso.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A cross-reference from one GlossEntry to another. -->
+  <xs:element name="glossseealso">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="glossseealso.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glossseealso.element -->
+  <!--
+    OtherTerm: Reference to the GlossEntry whose GlossTerm
+    should be displayed at the point of the GlossSeeAlso
+  -->
+  <xs:attributeGroup name="glossseealso.attlist">
+    <xs:attribute name="otherterm" type="xs:IDREF"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glossseealso.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glossseealso.attlist -->
+  <!-- end of glossseealso.module -->
+  <!-- end of glossentry.content.module -->
+  <!-- ItemizedList and OrderedList ..... -->
+  <xs:attributeGroup name="itemizedlist.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list in which each entry is marked with a bullet or other dingbat. -->
+  <xs:element name="itemizedlist" substitutionGroup="list.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="listpreamble.mix"/>
+        <xs:element maxOccurs="unbounded" ref="listitem"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="itemizedlist.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of itemizedlist.element -->
+  <!--
+    Spacing: Whether the vertical space in the list should be
+    compressed
+  -->
+  <!--
+    Mark: Keyword, e.g., bullet, dash, checkbox, none;
+    list of keywords and defaults are implementation specific
+  -->
+  <xs:attributeGroup name="itemizedlist.attlist">
+    <xs:attribute name="spacing">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="normal"/>
+          <xs:enumeration value="compact"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="mark.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="itemizedlist.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of itemizedlist.attlist -->
+  <!-- end of itemizedlist.module -->
+  <xs:attributeGroup name="orderedlist.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list in which each entry is marked with a sequentially incremented label. -->
+  <xs:element name="orderedlist" substitutionGroup="list.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="listpreamble.mix"/>
+        <xs:element maxOccurs="unbounded" ref="listitem"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="orderedlist.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of orderedlist.element -->
+  <!--
+    Numeration: Style of ListItem numbered; default is expected
+    to be Arabic
+  -->
+  <!--
+    InheritNum: Specifies for a nested list that the numbering
+    of ListItems should include the number of the item
+    within which they are nested (e.g., 1a and 1b within 1,
+    rather than a and b)
+  -->
+  <!--
+    Continuation: Where list numbering begins afresh (Restarts,
+    the default) or continues that of the immediately preceding
+    list (Continues)
+  -->
+  <!--
+    Spacing: Whether the vertical space in the list should be
+    compressed
+  -->
+  <xs:attributeGroup name="orderedlist.attlist">
+    <xs:attribute name="numeration">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="arabic"/>
+          <xs:enumeration value="upperalpha"/>
+          <xs:enumeration value="loweralpha"/>
+          <xs:enumeration value="upperroman"/>
+          <xs:enumeration value="lowerroman"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="inheritnum" default="ignore">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="inherit"/>
+          <xs:enumeration value="ignore"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="continuation" default="restarts">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="continues"/>
+          <xs:enumeration value="restarts"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="spacing">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="normal"/>
+          <xs:enumeration value="compact"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="orderedlist.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of orderedlist.attlist -->
+  <!-- end of orderedlist.module -->
+  <xs:attributeGroup name="listitem.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for the elements of a list item. -->
+  <xs:element name="listitem">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="component.mix"/>
+      <xs:attributeGroup ref="listitem.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of listitem.element -->
+  <!--
+    Override: Indicates the mark to be used for this ListItem
+    instead of the default mark or the mark specified by
+    the Mark attribute on the enclosing ItemizedList
+  -->
+  <xs:attributeGroup name="listitem.attlist">
+    <xs:attribute name="override"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="listitem.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of listitem.attlist -->
+  <!-- end of listitem.module -->
+  <!-- SegmentedList .................... -->
+  <xs:attributeGroup name="segmentedlist.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A segmented list, a list of sets of elements. -->
+  <xs:element name="segmentedlist" substitutionGroup="list.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:element maxOccurs="unbounded" ref="segtitle"/>
+        <xs:element maxOccurs="unbounded" ref="seglistitem"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="segmentedlist.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of segmentedlist.element -->
+  <xs:attributeGroup name="segmentedlist.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="segmentedlist.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of segmentedlist.attlist -->
+  <!-- end of segmentedlist.module -->
+  <xs:attributeGroup name="segtitle.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The title of an element of a list item in a segmented list. -->
+  <xs:element name="segtitle">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="title.char.mix"/>
+      <xs:attributeGroup ref="segtitle.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of segtitle.element -->
+  <xs:attributeGroup name="segtitle.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="segtitle.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of segtitle.attlist -->
+  <!-- end of segtitle.module -->
+  <xs:attributeGroup name="seglistitem.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list item in a segmented list. -->
+  <xs:element name="seglistitem">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="seg"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="seglistitem.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of seglistitem.element -->
+  <xs:attributeGroup name="seglistitem.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="seglistitem.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of seglistitem.attlist -->
+  <!-- end of seglistitem.module -->
+  <xs:attributeGroup name="seg.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An element of a list item in a segmented list. -->
+  <xs:element name="seg">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="seg.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of seg.element -->
+  <xs:attributeGroup name="seg.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="seg.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of seg.attlist -->
+  <!-- end of seg.module -->
+  <!-- end of segmentedlist.content.module -->
+  <!-- SimpleList ....................... -->
+  <xs:attributeGroup name="simplelist.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An undecorated list of single words or short phrases. -->
+  <xs:element name="simplelist" substitutionGroup="list.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="member"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="simplelist.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of simplelist.element -->
+  <!-- Columns: The number of columns the array should contain -->
+  <!--
+    Type: How the Members of the SimpleList should be
+    formatted: Inline (members separated with commas etc.
+    inline), Vert (top to bottom in n Columns), or Horiz (in
+    the direction of text flow) in n Columns.  If Column
+    is 1 or implied, Type=Vert and Type=Horiz give the same
+    results.
+  -->
+  <xs:attributeGroup name="simplelist.attlist">
+    <xs:attribute name="columns"/>
+    <xs:attribute name="type" default="vert">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="inline"/>
+          <xs:enumeration value="vert"/>
+          <xs:enumeration value="horiz"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="simplelist.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of simplelist.attlist -->
+  <!-- end of simplelist.module -->
+  <xs:attributeGroup name="member.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An element of a simple list. -->
+  <xs:element name="member">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="member.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of member.element -->
+  <xs:attributeGroup name="member.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="member.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of member.attlist -->
+  <!-- end of member.module -->
+  <!-- end of simplelist.content.module -->
+  <!-- VariableList ..................... -->
+  <xs:attributeGroup name="variablelist.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list in which each entry is composed of a set of one or more terms and an associated description. -->
+  <xs:element name="variablelist" substitutionGroup="list.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:group minOccurs="0" maxOccurs="unbounded" ref="listpreamble.mix"/>
+        <xs:element maxOccurs="unbounded" ref="varlistentry"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="variablelist.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of variablelist.element -->
+  <!--
+    TermLength: Length beyond which the presentation engine
+    may consider the Term too long and select an alternate
+    presentation of the Term and, or, its associated ListItem.
+  -->
+  <xs:attributeGroup name="variablelist.attlist">
+    <xs:attribute name="termlength"/>
+    <xs:attribute name="spacing">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="normal"/>
+          <xs:enumeration value="compact"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="variablelist.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of variablelist.attlist -->
+  <!-- end of variablelist.module -->
+  <xs:attributeGroup name="varlistentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for a set of terms and the associated description in a variable list. -->
+  <xs:element name="varlistentry">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="term"/>
+        <xs:element ref="listitem"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="varlistentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of varlistentry.element -->
+  <xs:attributeGroup name="varlistentry.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="varlistentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of varlistentry.attlist -->
+  <!-- end of varlistentry.module -->
+  <xs:attributeGroup name="term.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The word or phrase being defined or described in a variable list. -->
+  <xs:element name="term">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="term.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of term.element -->
+  <xs:attributeGroup name="term.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="term.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of term.attlist -->
+  <!-- end of term.module -->
+  <!-- ListItem (defined above) -->
+  <!-- end of variablelist.content.module -->
+  <!-- CalloutList ...................... -->
+  <xs:attributeGroup name="calloutlist.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A list of Callouts. -->
+  <xs:element name="calloutlist" substitutionGroup="list.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:element maxOccurs="unbounded" ref="callout"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="calloutlist.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of calloutlist.element -->
+  <xs:attributeGroup name="calloutlist.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="calloutlist.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of calloutlist.attlist -->
+  <!-- end of calloutlist.module -->
+  <xs:attributeGroup name="callout.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A &ldquo;called out&rdquo; description of a marked Area. -->
+  <xs:element name="callout">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="component.mix"/>
+      <xs:attributeGroup ref="callout.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of callout.element -->
+  <!--
+    AreaRefs: IDs of one or more Areas or AreaSets described
+    by this Callout
+  -->
+  <xs:attributeGroup name="callout.attlist">
+    <xs:attribute name="arearefs" use="required" type="xs:IDREFS"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="callout.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of callout.attlist -->
+  <!-- end of callout.module -->
+  <!-- end of calloutlist.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Objects .............................................................. -->
+  <!-- Examples etc. .................... -->
+  <xs:attributeGroup name="example.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A formal example, with a title. -->
+  <xs:element name="example" substitutionGroup="formal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group ref="formalobject.title.content"/>
+        <xs:group maxOccurs="unbounded" ref="example.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="example.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of example.element -->
+  <xs:attributeGroup name="example.attlist">
+    <xs:attribute name="floatstyle"/>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="width.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="example.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of example.attlist -->
+  <!-- end of example.module -->
+  <xs:attributeGroup name="informalexample.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A displayed example without a title. -->
+  <xs:element name="informalexample" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group maxOccurs="unbounded" ref="example.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="informalexample.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of informalexample.element -->
+  <xs:attributeGroup name="informalexample.attlist">
+    <xs:attribute name="floatstyle"/>
+    <xs:attributeGroup ref="width.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="informalexample.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of informalexample.attlist -->
+  <!-- end of informalexample.module -->
+  <xs:attributeGroup name="programlistingco.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A program listing with associated areas used in callouts. -->
+  <xs:element name="programlistingco" substitutionGroup="linespecific.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="areaspec"/>
+        <xs:element ref="programlisting"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="calloutlist"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="programlistingco.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of programlistingco.element -->
+  <xs:attributeGroup name="programlistingco.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="programlistingco.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of programlistingco.attlist -->
+  <!-- CalloutList (defined above in Lists) -->
+  <!-- end of informalexample.module -->
+  <xs:attributeGroup name="areaspec.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A collection of regions in a graphic or code example. -->
+  <xs:element name="areaspec">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="area"/>
+        <xs:element ref="areaset"/>
+      </xs:choice>
+      <xs:attributeGroup ref="areaspec.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of areaspec.element -->
+  <!--
+    Units: global unit of measure in which coordinates in
+    this spec are expressed:
+    
+    - CALSPair "x1,y1 x2,y2": lower-left and upper-right
+    coordinates in a rectangle describing repro area in which
+    graphic is placed, where X and Y dimensions are each some
+    number 0..10000 (taken from CALS graphic attributes)
+    
+    - LineColumn "line column": line number and column number
+    at which to start callout text in "linespecific" content
+    
+    - LineRange "startline endline": whole lines from startline
+    to endline in "linespecific" content
+    
+    - LineColumnPair "line1 col1 line2 col2": starting and ending
+    points of area in "linespecific" content that starts at
+    first position and ends at second position (including the
+    beginnings of any intervening lines)
+    
+    - Other: directive to look at value of OtherUnits attribute
+    to get implementation-specific keyword
+    
+    The default is implementation-specific; usually dependent on
+    the parent element (GraphicCO gets CALSPair, ProgramListingCO
+    and ScreenCO get LineColumn)
+  -->
+  <!-- OtherUnits: User-defined units -->
+  <xs:attributeGroup name="areaspec.attlist">
+    <xs:attribute name="units">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="calspair"/>
+          <xs:enumeration value="linecolumn"/>
+          <xs:enumeration value="linerange"/>
+          <xs:enumeration value="linecolumnpair"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="otherunits" type="xs:NMTOKEN"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="areaspec.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of areaspec.attlist -->
+  <!-- end of areaspec.module -->
+  <xs:attributeGroup name="area.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A region defined for a Callout in a graphic or code example. -->
+  <xs:element name="area">
+    <xs:complexType>
+      <xs:attributeGroup ref="area.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of area.element -->
+  <!-- bug number/symbol override or initialization -->
+  <!-- to any related information -->
+  <!--
+    Units: unit of measure in which coordinates in this
+    area are expressed; inherits from AreaSet and AreaSpec
+  -->
+  <!-- OtherUnits: User-defined units -->
+  <xs:attributeGroup name="area.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="linkends.attrib"/>
+    <xs:attribute name="units">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="calspair"/>
+          <xs:enumeration value="linecolumn"/>
+          <xs:enumeration value="linerange"/>
+          <xs:enumeration value="linecolumnpair"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="otherunits" type="xs:NMTOKEN"/>
+    <xs:attribute name="coords" use="required"/>
+    <xs:attributeGroup ref="idreq.common.attrib"/>
+    <xs:attributeGroup ref="area.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of area.attlist -->
+  <!-- end of area.module -->
+  <xs:attributeGroup name="areaset.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A set of related areas in a graphic or code example. -->
+  <xs:element name="areaset">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="area"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="areaset.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of areaset.element -->
+  <!-- bug number/symbol override or initialization -->
+  <!--
+    Units: unit of measure in which coordinates in this
+    area are expressed; inherits from AreaSpec
+  -->
+  <xs:attributeGroup name="areaset.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attribute name="units">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="calspair"/>
+          <xs:enumeration value="linecolumn"/>
+          <xs:enumeration value="linerange"/>
+          <xs:enumeration value="linecolumnpair"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="otherunits" type="xs:NMTOKEN"/>
+    <xs:attribute name="coords" use="required"/>
+    <xs:attributeGroup ref="idreq.common.attrib"/>
+    <xs:attributeGroup ref="areaset.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of areaset.attlist -->
+  <!-- end of areaset.module -->
+  <!-- end of areaspec.content.module -->
+  <xs:attributeGroup name="programlisting.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A literal listing of all or part of a program. -->
+  <xs:element name="programlisting" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="lineannotation"/>
+        <xs:element ref="textobject"/>
+      </xs:choice>
+      <xs:attributeGroup ref="programlisting.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of programlisting.element -->
+  <xs:attributeGroup name="programlisting.attlist">
+    <xs:attributeGroup ref="width.attrib"/>
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="programlisting.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of programlisting.attlist -->
+  <!-- end of programlisting.module -->
+  <xs:attributeGroup name="literallayout.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A block of text in which line breaks and white space are to be reproduced faithfully. -->
+  <xs:element name="literallayout" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="textobject"/>
+        <xs:element ref="lineannotation"/>
+      </xs:choice>
+      <xs:attributeGroup ref="literallayout.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of literallayout.element -->
+  <xs:attributeGroup name="literallayout.attlist">
+    <xs:attributeGroup ref="width.attrib"/>
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attribute name="class" default="normal">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="monospaced"/>
+          <xs:enumeration value="normal"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="literallayout.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of literallayout.attlist -->
+  <!-- LineAnnotation (defined in the Inlines section, below) -->
+  <!-- end of literallayout.module -->
+  <xs:attributeGroup name="screenco.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A screen with associated areas used in callouts. -->
+  <xs:element name="screenco" substitutionGroup="linespecific.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="areaspec"/>
+        <xs:element ref="screen"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="calloutlist"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="screenco.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of screenco.element -->
+  <xs:attributeGroup name="screenco.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="screenco.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of screenco.attlist -->
+  <!-- AreaSpec (defined above) -->
+  <!-- CalloutList (defined above in Lists) -->
+  <!-- end of screenco.module -->
+  <xs:attributeGroup name="screen.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Text that a user sees or might see on a computer screen. -->
+  <xs:element name="screen" substitutionGroup="linespecific.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="textobject"/>
+        <xs:element ref="lineannotation"/>
+      </xs:choice>
+      <xs:attributeGroup ref="screen.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of screen.element -->
+  <xs:attributeGroup name="screen.attlist">
+    <xs:attributeGroup ref="width.attrib"/>
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="screen.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of screen.attlist -->
+  <!-- end of screen.module -->
+  <xs:attributeGroup name="screenshot.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A representation of what the user sees or might see on a computer screen. -->
+  <xs:element name="screenshot" substitutionGroup="linespecific.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="screeninfo"/>
+        <xs:choice>
+          <xs:element ref="graphic"/>
+          <xs:element ref="graphicco"/>
+          <xs:element ref="mediaobject"/>
+          <xs:element ref="mediaobjectco"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="screenshot.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of screenshot.element -->
+  <xs:attributeGroup name="screenshot.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="screenshot.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of screenshot.attlist -->
+  <!-- end of screenshot.module -->
+  <xs:attributeGroup name="screeninfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Information about how a screen shot was produced. -->
+  <xs:element name="screeninfo">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="screeninfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of screeninfo.element -->
+  <xs:attributeGroup name="screeninfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="screeninfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of screeninfo.attlist -->
+  <!-- end of screeninfo.module -->
+  <!-- end of screenshot.content.module -->
+  <!-- Figures etc. ..................... -->
+  <xs:attributeGroup name="figure.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A formal figure, generally an illustration, with a title. -->
+  <xs:element name="figure" substitutionGroup="formal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group ref="formalobject.title.content"/>
+        <xs:choice maxOccurs="unbounded">
+          <xs:group ref="figure.mix"/>
+          <xs:element ref="link.char.class"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="figure.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of figure.element -->
+  <!--
+    Float: Whether the Figure is supposed to be rendered
+    where convenient (yes (1) value) or at the place it occurs
+    in the text (no (0) value, the default)
+  -->
+  <xs:attributeGroup name="figure.attlist">
+    <xs:attribute name="float" default="0" type="yesorno.attvals"/>
+    <xs:attribute name="floatstyle"/>
+    <xs:attribute name="pgwide" type="yesorno.attvals"/>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="figure.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of figure.attlist -->
+  <!-- end of figure.module -->
+  <xs:attributeGroup name="informalfigure.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A untitled figure. -->
+  <xs:element name="informalfigure" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:choice maxOccurs="unbounded">
+          <xs:group ref="figure.mix"/>
+          <xs:element ref="link.char.class"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="informalfigure.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of informalfigure.element -->
+  <!--
+    Float: Whether the Figure is supposed to be rendered
+    where convenient (yes (1) value) or at the place it occurs
+    in the text (no (0) value, the default)
+  -->
+  <xs:attributeGroup name="informalfigure.attlist">
+    <xs:attribute name="float" default="0" type="yesorno.attvals"/>
+    <xs:attribute name="floatstyle"/>
+    <xs:attribute name="pgwide" type="yesorno.attvals"/>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="informalfigure.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of informalfigure.attlist -->
+  <!-- end of informalfigure.module -->
+  <xs:attributeGroup name="graphicco.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A graphic that contains callout areas. -->
+  <xs:element name="graphicco" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="areaspec"/>
+        <xs:element ref="graphic"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="calloutlist"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="graphicco.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of graphicco.element -->
+  <xs:attributeGroup name="graphicco.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="graphicco.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of graphicco.attlist -->
+  <!-- AreaSpec (defined above in Examples) -->
+  <!-- CalloutList (defined above in Lists) -->
+  <!-- end of graphicco.module -->
+  <!--
+    Graphical data can be the content of Graphic, or you can reference
+    an external file either as an entity (Entitref) or a filename
+    (Fileref).
+  -->
+  <xs:attributeGroup name="graphic.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A displayed graphical object (not an inline). -->
+  <xs:element name="graphic" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:attributeGroup ref="graphic.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of graphic.element -->
+  <xs:attributeGroup name="graphic.attlist">
+    <xs:attributeGroup ref="graphics.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="graphic.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of graphic.attlist -->
+  <!-- end of graphic.module -->
+  <xs:attributeGroup name="inlinegraphic.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An object containing or pointing to graphical data that will be rendered inline. -->
+  <xs:element name="inlinegraphic" substitutionGroup="inlineobj.char.class">
+    <xs:complexType>
+      <xs:attributeGroup ref="inlinegraphic.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of inlinegraphic.element -->
+  <xs:attributeGroup name="inlinegraphic.attlist">
+    <xs:attributeGroup ref="graphics.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="inlinegraphic.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of inlinegraphic.attlist -->
+  <!-- end of inlinegraphic.module -->
+  <xs:attributeGroup name="mediaobject.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A displayed media object (video, audio, image, etc.). -->
+  <xs:element name="mediaobject" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="objectinfo"/>
+        <xs:element maxOccurs="unbounded" ref="mediaobject.mix"/>
+        <xs:element minOccurs="0" ref="caption"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="mediaobject.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of mediaobject.element -->
+  <xs:attributeGroup name="mediaobject.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="mediaobject.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of mediaobject.attlist -->
+  <!-- end of mediaobject.module -->
+  <xs:attributeGroup name="inlinemediaobject.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An inline media object (video, audio, image, and so on). -->
+  <xs:element name="inlinemediaobject" substitutionGroup="inlineobj.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="objectinfo"/>
+        <xs:element maxOccurs="unbounded" ref="mediaobject.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="inlinemediaobject.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of inlinemediaobject.element -->
+  <xs:attributeGroup name="inlinemediaobject.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="inlinemediaobject.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of inlinemediaobject.attlist -->
+  <!-- end of inlinemediaobject.module -->
+  <xs:attributeGroup name="videoobject.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for video data and its associated meta-information. -->
+  <xs:element name="videoobject" substitutionGroup="mediaobject.mix">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="objectinfo"/>
+        <xs:element ref="videodata"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="videoobject.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of videoobject.element -->
+  <xs:attributeGroup name="videoobject.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="videoobject.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of videoobject.attlist -->
+  <!-- end of videoobject.module -->
+  <xs:attributeGroup name="audioobject.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for audio data and its associated meta-information. -->
+  <xs:element name="audioobject" substitutionGroup="mediaobject.mix">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="objectinfo"/>
+        <xs:element ref="audiodata"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="audioobject.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of audioobject.element -->
+  <xs:attributeGroup name="audioobject.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="audioobject.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of audioobject.attlist -->
+  <!-- end of audioobject.module -->
+  <xs:attributeGroup name="imageobject.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for image data and its associated meta-information. -->
+  <xs:element name="imageobject" substitutionGroup="mediaobject.mix">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="objectinfo"/>
+        <xs:element ref="imagedata"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="imageobject.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of imageobject.element -->
+  <xs:attributeGroup name="imageobject.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="imageobject.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of imageobject.attlist -->
+  <!-- end of imageobject.module -->
+  <xs:attributeGroup name="textobject.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for a text description of an object and its associated meta-information. -->
+  <xs:element name="textobject" substitutionGroup="mediaobject.mix">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="objectinfo"/>
+        <xs:choice>
+          <xs:element ref="phrase"/>
+          <xs:element ref="textdata"/>
+          <xs:group maxOccurs="unbounded" ref="textobject.mix"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="textobject.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of textobject.element -->
+  <xs:attributeGroup name="textobject.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="textobject.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of textobject.attlist -->
+  <!-- end of textobject.module -->
+  <xs:attributeGroup name="objectinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Meta-information for an object. -->
+  <xs:element name="objectinfo">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="info.class"/>
+      <xs:attributeGroup ref="objectinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of objectinfo.element -->
+  <xs:attributeGroup name="objectinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="objectinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of objectinfo.attlist -->
+  <!-- end of objectinfo.module -->
+  <!--
+    EntityRef: Name of an external entity containing the content
+    of the object data
+  -->
+  <!--
+    FileRef: Filename, qualified by a pathname if desired,
+    designating the file containing the content of the object data
+  -->
+  <!-- Format: Notation of the element content, if any -->
+  <!-- SrcCredit: Information about the source of the image -->
+  <xs:attributeGroup name="objectdata.attrib">
+    <xs:attribute name="entityref" type="xs:ENTITY"/>
+    <xs:attribute name="fileref"/>
+    <xs:attribute name="format" type="notation.class"/>
+    <xs:attribute name="srccredit"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="videodata.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Pointer to external video data. -->
+  <xs:element name="videodata">
+    <xs:complexType>
+      <xs:attributeGroup ref="videodata.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of videodata.element -->
+  <!-- Width: Same as CALS reprowid (desired width) -->
+  <!-- Depth: Same as CALS reprodep (desired depth) -->
+  <!--
+    Align: Same as CALS hplace with 'none' removed; #IMPLIED means
+    application-specific
+  -->
+  <!-- Scale: Conflation of CALS hscale and vscale -->
+  <!-- Scalefit: Same as CALS scalefit -->
+  <xs:attributeGroup name="videodata.attlist">
+    <xs:attribute name="width"/>
+    <xs:attribute name="contentwidth"/>
+    <xs:attribute name="depth"/>
+    <xs:attribute name="contentdepth"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="center"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="scale"/>
+    <xs:attribute name="scalefit" type="yesorno.attvals"/>
+    <xs:attributeGroup ref="objectdata.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="videodata.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of videodata.attlist -->
+  <!-- end of videodata.module -->
+  <xs:attributeGroup name="audiodata.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Pointer to external audio data. -->
+  <xs:element name="audiodata">
+    <xs:complexType>
+      <xs:attributeGroup ref="audiodata.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of audiodata.element -->
+  <xs:attributeGroup name="audiodata.attlist">
+    <xs:attributeGroup ref="objectdata.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="audiodata.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of audiodata.attlist -->
+  <!-- end of audiodata.module -->
+  <xs:attributeGroup name="imagedata.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Pointer to external image data. -->
+  <xs:element name="imagedata">
+    <xs:complexType>
+      <xs:attributeGroup ref="imagedata.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of imagedata.element -->
+  <!-- Width: Same as CALS reprowid (desired width) -->
+  <!-- Depth: Same as CALS reprodep (desired depth) -->
+  <!--
+    Align: Same as CALS hplace with 'none' removed; #IMPLIED means
+    application-specific
+  -->
+  <!-- Scale: Conflation of CALS hscale and vscale -->
+  <!-- Scalefit: Same as CALS scalefit -->
+  <xs:attributeGroup name="imagedata.attlist">
+    <xs:attribute name="width"/>
+    <xs:attribute name="contentwidth"/>
+    <xs:attribute name="depth"/>
+    <xs:attribute name="contentdepth"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="center"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="scale"/>
+    <xs:attribute name="scalefit" type="yesorno.attvals"/>
+    <xs:attributeGroup ref="objectdata.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="imagedata.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of imagedata.attlist -->
+  <!-- end of imagedata.module -->
+  <xs:attributeGroup name="textdata.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Pointer to external text data. -->
+  <xs:element name="textdata">
+    <xs:complexType>
+      <xs:attributeGroup ref="textdata.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of textdata.element -->
+  <xs:attributeGroup name="textdata.attlist">
+    <xs:attribute name="encoding"/>
+    <xs:attributeGroup ref="objectdata.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="textdata.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of textdata.attlist -->
+  <!-- end of textdata.module -->
+  <xs:attributeGroup name="mediaobjectco.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A media object that contains callouts. -->
+  <xs:element name="mediaobjectco" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="objectinfo"/>
+        <xs:element ref="imageobjectco"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="imageobjectco"/>
+          <xs:element ref="textobject"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="mediaobjectco.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of mediaobjectco.element -->
+  <xs:attributeGroup name="mediaobjectco.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="mediaobjectco.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of mediaobjectco.attlist -->
+  <!-- end of mediaobjectco.module -->
+  <xs:attributeGroup name="imageobjectco.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for an image object with callouts. -->
+  <xs:element name="imageobjectco" substitutionGroup="mediaobject.mix">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="areaspec"/>
+        <xs:element ref="imageobject"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="calloutlist"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="imageobjectco.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of imageobjectco.element -->
+  <xs:attributeGroup name="imageobjectco.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="imageobjectco.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of imageobjectco.attlist -->
+  <!-- end of imageobjectco.module -->
+  <!-- end of mediaobject.content.module -->
+  <!-- Equations ........................ -->
+  <!-- This PE provides a mechanism for replacing equation content, -->
+  <!-- perhaps adding a new or different model (e.g., MathML) -->
+  <xs:group name="equation.content">
+    <xs:sequence>
+      <xs:element minOccurs="0" ref="alt"/>
+      <xs:choice>
+        <xs:element maxOccurs="unbounded" ref="graphic"/>
+        <xs:element maxOccurs="unbounded" ref="mediaobject"/>
+        <xs:element maxOccurs="unbounded" ref="mathphrase"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:group>
+  <xs:complexType name="inlineequation.content">
+    <xs:sequence>
+      <xs:element minOccurs="0" ref="alt"/>
+      <xs:choice>
+        <xs:element maxOccurs="unbounded" ref="graphic"/>
+        <xs:element maxOccurs="unbounded" ref="inlinemediaobject"/>
+        <xs:element maxOccurs="unbounded" ref="mathphrase"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:complexType>
+  <xs:attributeGroup name="equation.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A displayed mathematical equation. -->
+  <xs:element name="equation" substitutionGroup="formal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group minOccurs="0" ref="formalobject.title.content"/>
+        <xs:choice>
+          <xs:element ref="informalequation"/>
+          <xs:group ref="equation.content"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="equation.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of equation.element -->
+  <xs:attributeGroup name="equation.attlist">
+    <xs:attribute name="floatstyle"/>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="equation.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of equation.attlist -->
+  <!-- end of equation.module -->
+  <xs:attributeGroup name="informalequation.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A displayed mathematical equation without a title. -->
+  <xs:element name="informalequation" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group ref="equation.content"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="informalequation.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of informalequation.element -->
+  <xs:attributeGroup name="informalequation.attlist">
+    <xs:attribute name="floatstyle"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="informalequation.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of informalequation.attlist -->
+  <!-- end of informalequation.module -->
+  <xs:attributeGroup name="inlineequation.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A mathematical equation or expression occurring inline. -->
+  <xs:element name="inlineequation" substitutionGroup="inlineobj.char.class">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="inlineequation.content">
+          <xs:attributeGroup ref="inlineequation.attlist"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of inlineequation.element -->
+  <xs:attributeGroup name="inlineequation.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="inlineequation.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of inlineequation.attlist -->
+  <!-- end of inlineequation.module -->
+  <xs:attributeGroup name="alt.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Text representation for a graphical element. -->
+  <xs:element name="alt">
+    <xs:complexType mixed="true">
+      <xs:attributeGroup ref="alt.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of alt.element -->
+  <xs:attributeGroup name="alt.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="alt.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of alt.attlist -->
+  <!-- end of alt.module -->
+  <xs:attributeGroup name="mathphrase.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A mathematical phrase, an expression that can be represented with ordinary text and a small amount of markup. -->
+  <xs:element name="mathphrase">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="subscript"/>
+        <xs:element ref="superscript"/>
+        <xs:element ref="emphasis"/>
+      </xs:choice>
+      <xs:attributeGroup ref="mathphrase.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of mathphrase.element -->
+  <xs:attributeGroup name="mathphrase.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="mathphrase.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of mathphrase.attlist -->
+  <!-- end of mathphrase.module -->
+  <!-- Tables ........................... -->
+  <!-- Choose a table model. CALS or OASIS XML Exchange -->
+  <!-- Do we allow the HTML table model as well? -->
+  <!-- ====================================================== -->
+  <!--
+    xhtmltbl.mod defines HTML tables and sets parameter
+    entities so that, when the CALS table module is read,
+    we end up allowing any table to be CALS or HTML.
+    i.e. This include must come first!
+  -->
+  <!-- ====================================================== -->
+  <!-- end of allow.html.tables -->
+  <!-- Add label and role attributes to table and informaltable -->
+  <!--
+    Add common attributes to Table, TGroup, TBody, THead, TFoot, Row,
+    EntryTbl, and Entry (and InformalTable element).
+  -->
+  <!-- Content model for Table. -->
+  <!-- Allow either objects or inlines; beware of REs between elements. -->
+  <!-- Reference CALS Table Model -->
+  <!-- end of table.module -->
+  <!--
+    Note that InformalTable is dependent on some of the entity
+    declarations that customize Table.
+  -->
+  <!-- the following entity may have been declared by the XHTML table module -->
+  <!-- doc:A table without a title. -->
+  <xs:element name="informaltable" substitutionGroup="informal.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group ref="informal.tbl.table.mdl"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="informaltable.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of informaltable.element -->
+  <!--
+    Frame, Colsep, and Rowsep must be repeated because
+    they are not in entities in the table module.
+  -->
+  <!--
+    includes TabStyle, ToCentry, ShortEntry,
+    Orient, PgWide
+  -->
+  <!-- includes Label -->
+  <!-- includes common attributes -->
+  <xs:attributeGroup name="informaltable.attlist">
+    <xs:attribute name="frame" type="tbl.frame.attval"/>
+    <xs:attribute name="colsep" type="yesorno.attvals"/>
+    <xs:attribute name="rowsep" type="yesorno.attvals"/>
+    <xs:attributeGroup ref="common.table.attribs"/>
+    <xs:attributeGroup ref="tbl.table.att"/>
+  </xs:attributeGroup>
+  <!-- end of informaltable.attlist -->
+  <!-- end of informaltable.module -->
+  <xs:attributeGroup name="caption.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A caption. -->
+  <xs:element name="caption">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="textobject.mix"/>
+      <xs:attributeGroup ref="caption.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of caption.element -->
+  <!-- attrs comes from HTML tables ... -->
+  <!-- common.attrib, but without ID because ID is in attrs -->
+  <xs:attributeGroup name="caption.attlist.content">
+    <xs:attributeGroup ref="caption.role.attrib"/>
+    <xs:attributeGroup ref="attrs"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="bottom"/>
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="caption.attlist">
+    <xs:attributeGroup ref="caption.attlist.content"/>
+  </xs:attributeGroup>
+  <!-- end of caption.attlist -->
+  <!-- end of caption.module -->
+  <!-- ...................................................................... -->
+  <!-- Synopses ............................................................. -->
+  <!-- Synopsis ......................... -->
+  <xs:attributeGroup name="synopsis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A general-purpose element for representing the syntax of commands or functions. -->
+  <xs:element name="synopsis" substitutionGroup="synop.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:element ref="graphic"/>
+        <xs:element ref="mediaobject"/>
+        <xs:element ref="co"/>
+        <xs:element ref="coref"/>
+        <xs:element ref="textobject"/>
+        <xs:element ref="lineannotation"/>
+      </xs:choice>
+      <xs:attributeGroup ref="synopsis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of synopsis.element -->
+  <xs:attributeGroup name="synopsis.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="synopsis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of synopsis.attlist -->
+  <!-- LineAnnotation (defined in the Inlines section, below) -->
+  <!-- end of synopsis.module -->
+  <!-- CmdSynopsis ...................... -->
+  <xs:attributeGroup name="cmdsynopsis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A syntax summary for a software command. -->
+  <xs:element name="cmdsynopsis" substitutionGroup="synop.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice maxOccurs="unbounded">
+          <xs:element ref="command"/>
+          <xs:element ref="arg"/>
+          <xs:element ref="group"/>
+          <xs:element ref="sbr"/>
+        </xs:choice>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="synopfragment"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="cmdsynopsis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of cmdsynopsis.element -->
+  <!--
+    Sepchar: Character that should separate command and all
+    top-level arguments; alternate value might be e.g., &Delta;
+  -->
+  <xs:attributeGroup name="cmdsynopsis.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attribute name="sepchar" default=" "/>
+    <xs:attribute name="cmdlength"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="cmdsynopsis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of cmdsynopsis.attlist -->
+  <!-- end of cmdsynopsis.module -->
+  <xs:attributeGroup name="arg.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An argument in a CmdSynopsis. -->
+  <xs:element name="arg">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="arg"/>
+        <xs:element ref="group"/>
+        <xs:element ref="option"/>
+        <xs:element ref="synopfragmentref"/>
+        <xs:element ref="replaceable"/>
+        <xs:element ref="sbr"/>
+      </xs:choice>
+      <xs:attributeGroup ref="arg.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of arg.element -->
+  <!--
+    Choice: Whether Arg must be supplied: Opt (optional to
+    supply, e.g. [arg]; the default), Req (required to supply,
+    e.g. {arg}), or Plain (required to supply, e.g. arg)
+  -->
+  <!--
+    Rep: whether Arg is repeatable: Norepeat (e.g. arg without
+    ellipsis; the default), or Repeat (e.g. arg...)
+  -->
+  <xs:attributeGroup name="arg.attlist">
+    <xs:attribute name="choice" default="opt">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="opt"/>
+          <xs:enumeration value="req"/>
+          <xs:enumeration value="plain"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="rep" default="norepeat">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="norepeat"/>
+          <xs:enumeration value="repeat"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="arg.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of arg.attlist -->
+  <!-- end of arg.module -->
+  <xs:attributeGroup name="group.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A group of elements in a CmdSynopsis. -->
+  <xs:element name="group">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="arg"/>
+        <xs:element ref="group"/>
+        <xs:element ref="option"/>
+        <xs:element ref="synopfragmentref"/>
+        <xs:element ref="replaceable"/>
+        <xs:element ref="sbr"/>
+      </xs:choice>
+      <xs:attributeGroup ref="group.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of group.element -->
+  <!--
+    Choice: Whether Group must be supplied: Opt (optional to
+    supply, e.g.  [g1|g2|g3]; the default), Req (required to
+    supply, e.g.  {g1|g2|g3}), Plain (required to supply,
+    e.g.  g1|g2|g3), OptMult (can supply zero or more, e.g.
+    [[g1|g2|g3]]), or ReqMult (must supply one or more, e.g.
+    {{g1|g2|g3}})
+  -->
+  <!--
+    Rep: whether Group is repeatable: Norepeat (e.g. group
+    without ellipsis; the default), or Repeat (e.g. group...)
+  -->
+  <xs:attributeGroup name="group.attlist">
+    <xs:attribute name="choice" default="opt">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="opt"/>
+          <xs:enumeration value="req"/>
+          <xs:enumeration value="plain"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="rep" default="norepeat">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="norepeat"/>
+          <xs:enumeration value="repeat"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="group.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of group.attlist -->
+  <!-- end of group.module -->
+  <!-- Synopsis break -->
+  <xs:attributeGroup name="sbr.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An explicit line break in a command synopsis. -->
+  <xs:element name="sbr">
+    <xs:complexType>
+      <xs:attributeGroup ref="sbr.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sbr.element -->
+  <xs:attributeGroup name="sbr.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sbr.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sbr.attlist -->
+  <!-- end of sbr.module -->
+  <xs:attributeGroup name="synopfragmentref.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A reference to a fragment of a command synopsis. -->
+  <xs:element name="synopfragmentref">
+    <xs:complexType mixed="true">
+      <xs:attributeGroup ref="synopfragmentref.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of synopfragmentref.element -->
+  <!--
+    to SynopFragment of complex synopsis
+    material for separate referencing
+  -->
+  <xs:attributeGroup name="synopfragmentref.attlist">
+    <xs:attributeGroup ref="linkendreq.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="synopfragmentref.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of synopfragmentref.attlist -->
+  <!-- end of synopfragmentref.module -->
+  <xs:attributeGroup name="synopfragment.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A portion of a CmdSynopsis broken out from the main body of the synopsis. -->
+  <xs:element name="synopfragment">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="arg"/>
+        <xs:element ref="group"/>
+      </xs:choice>
+      <xs:attributeGroup ref="synopfragment.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of synopfragment.element -->
+  <xs:attributeGroup name="synopfragment.attlist">
+    <xs:attributeGroup ref="idreq.common.attrib"/>
+    <xs:attributeGroup ref="synopfragment.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of synopfragment.attlist -->
+  <!-- end of synopfragment.module -->
+  <!-- Command (defined in the Inlines section, below) -->
+  <!-- Option (defined in the Inlines section, below) -->
+  <!-- Replaceable (defined in the Inlines section, below) -->
+  <!-- end of cmdsynopsis.content.module -->
+  <!-- FuncSynopsis ..................... -->
+  <xs:attributeGroup name="funcsynopsis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The syntax summary for a function definition. -->
+  <xs:element name="funcsynopsis" substitutionGroup="synop.class">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="funcsynopsisinfo"/>
+        <xs:element ref="funcprototype"/>
+      </xs:choice>
+      <xs:attributeGroup ref="funcsynopsis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of funcsynopsis.element -->
+  <xs:attributeGroup name="funcsynopsis.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="funcsynopsis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of funcsynopsis.attlist -->
+  <!-- end of funcsynopsis.module -->
+  <xs:attributeGroup name="funcsynopsisinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Information supplementing the FuncDefs of a FuncSynopsis. -->
+  <xs:element name="funcsynopsisinfo">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="cptr.char.mix"/>
+        <xs:element ref="textobject"/>
+        <xs:element ref="lineannotation"/>
+      </xs:choice>
+      <xs:attributeGroup ref="funcsynopsisinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of funcsynopsisinfo.element -->
+  <xs:attributeGroup name="funcsynopsisinfo.attlist">
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="funcsynopsisinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of funcsynopsisinfo.attlist -->
+  <!-- end of funcsynopsisinfo.module -->
+  <xs:attributeGroup name="funcprototype.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The prototype of a function. -->
+  <xs:element name="funcprototype">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+        <xs:element ref="funcdef"/>
+        <xs:choice>
+          <xs:element ref="void"/>
+          <xs:element ref="varargs"/>
+          <xs:sequence>
+            <xs:element maxOccurs="unbounded" ref="paramdef"/>
+            <xs:element minOccurs="0" ref="varargs"/>
+          </xs:sequence>
+        </xs:choice>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="funcprototype.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of funcprototype.element -->
+  <xs:attributeGroup name="funcprototype.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="funcprototype.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of funcprototype.attlist -->
+  <!-- end of funcprototype.module -->
+  <xs:attributeGroup name="funcdef.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A function (subroutine) name and its return type. -->
+  <xs:element name="funcdef">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="type"/>
+        <xs:element ref="replaceable"/>
+        <xs:element ref="function"/>
+      </xs:choice>
+      <xs:attributeGroup ref="funcdef.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of funcdef.element -->
+  <xs:attributeGroup name="funcdef.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="funcdef.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of funcdef.attlist -->
+  <!-- end of funcdef.module -->
+  <xs:attributeGroup name="void.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An empty element in a function synopsis indicating that the function in question takes no arguments. -->
+  <xs:element name="void">
+    <xs:complexType>
+      <xs:attributeGroup ref="void.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of void.element -->
+  <xs:attributeGroup name="void.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="void.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of void.attlist -->
+  <!-- end of void.module -->
+  <xs:attributeGroup name="varargs.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An empty element in a function synopsis indicating a variable number of arguments. -->
+  <xs:element name="varargs">
+    <xs:complexType>
+      <xs:attributeGroup ref="varargs.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of varargs.element -->
+  <xs:attributeGroup name="varargs.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="varargs.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of varargs.attlist -->
+  <!-- end of varargs.module -->
+  <!--
+    Processing assumes that only one Parameter will appear in a
+    ParamDef, and that FuncParams will be used at most once, for
+    providing information on the "inner parameters" for parameters that
+    are pointers to functions.
+  -->
+  <xs:attributeGroup name="paramdef.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Information about a function parameter in a programming language. -->
+  <xs:element name="paramdef">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="initializer"/>
+        <xs:element ref="type"/>
+        <xs:element ref="replaceable"/>
+        <xs:element ref="parameter"/>
+        <xs:element ref="funcparams"/>
+      </xs:choice>
+      <xs:attributeGroup ref="paramdef.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of paramdef.element -->
+  <xs:attributeGroup name="paramdef.attlist">
+    <xs:attribute name="choice">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="opt"/>
+          <xs:enumeration value="req"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="paramdef.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of paramdef.attlist -->
+  <!-- end of paramdef.module -->
+  <xs:attributeGroup name="funcparams.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Parameters for a function referenced through a function pointer in a synopsis. -->
+  <xs:element name="funcparams">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="funcparams.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of funcparams.element -->
+  <xs:attributeGroup name="funcparams.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="funcparams.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of funcparams.attlist -->
+  <!-- end of funcparams.module -->
+  <!-- LineAnnotation (defined in the Inlines section, below) -->
+  <!-- Replaceable (defined in the Inlines section, below) -->
+  <!-- Function (defined in the Inlines section, below) -->
+  <!-- Parameter (defined in the Inlines section, below) -->
+  <!-- end of funcsynopsis.content.module -->
+  <!-- ClassSynopsis ..................... -->
+  <xs:attributeGroup name="classsynopsis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The syntax summary for a class definition. -->
+  <xs:element name="classsynopsis" substitutionGroup="synop.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice maxOccurs="unbounded">
+          <xs:element ref="ooclass"/>
+          <xs:element ref="oointerface"/>
+          <xs:element ref="ooexception"/>
+        </xs:choice>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="classsynopsisinfo"/>
+          <xs:element ref="fieldsynopsis"/>
+          <xs:element ref="method.synop.class"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="classsynopsis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of classsynopsis.element -->
+  <xs:attributeGroup name="classsynopsis.attlist">
+    <xs:attribute name="language"/>
+    <xs:attribute name="class" default="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="class"/>
+          <xs:enumeration value="interface"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="classsynopsis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of classsynopsis.attlist -->
+  <!-- end of classsynopsis.module -->
+  <xs:attributeGroup name="classsynopsisinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Information supplementing the contents of a ClassSynopsis. -->
+  <xs:element name="classsynopsisinfo">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="cptr.char.mix"/>
+        <xs:element ref="textobject"/>
+        <xs:element ref="lineannotation"/>
+      </xs:choice>
+      <xs:attributeGroup ref="classsynopsisinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of classsynopsisinfo.element -->
+  <xs:attributeGroup name="classsynopsisinfo.attlist">
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="classsynopsisinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of classsynopsisinfo.attlist -->
+  <!-- end of classsynopsisinfo.module -->
+  <xs:attributeGroup name="ooclass.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A class in an object-oriented programming language. -->
+  <xs:element name="ooclass" substitutionGroup="tech.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="modifier"/>
+          <xs:element ref="package"/>
+        </xs:choice>
+        <xs:element ref="classname"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="ooclass.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of ooclass.element -->
+  <xs:attributeGroup name="ooclass.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="ooclass.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of ooclass.attlist -->
+  <!-- end of ooclass.module -->
+  <xs:attributeGroup name="oointerface.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An interface in an object-oriented programming language. -->
+  <xs:element name="oointerface" substitutionGroup="tech.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="modifier"/>
+          <xs:element ref="package"/>
+        </xs:choice>
+        <xs:element ref="interfacename"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="oointerface.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of oointerface.element -->
+  <xs:attributeGroup name="oointerface.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="oointerface.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of oointerface.attlist -->
+  <!-- end of oointerface.module -->
+  <xs:attributeGroup name="ooexception.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An exception in an object-oriented programming language. -->
+  <xs:element name="ooexception" substitutionGroup="tech.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="modifier"/>
+          <xs:element ref="package"/>
+        </xs:choice>
+        <xs:element ref="exceptionname"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="ooexception.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of ooexception.element -->
+  <xs:attributeGroup name="ooexception.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="ooexception.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of ooexception.attlist -->
+  <!-- end of ooexception.module -->
+  <xs:attributeGroup name="modifier.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Modifiers in a synopsis. -->
+  <xs:element name="modifier">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="modifier.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of modifier.element -->
+  <xs:attributeGroup name="modifier.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="modifier.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of modifier.attlist -->
+  <!-- end of modifier.module -->
+  <xs:attributeGroup name="interfacename.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of an interface. -->
+  <xs:element name="interfacename" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="interfacename.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of interfacename.element -->
+  <xs:attributeGroup name="interfacename.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="interfacename.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of interfacename.attlist -->
+  <!-- end of interfacename.module -->
+  <xs:attributeGroup name="exceptionname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of an exception. -->
+  <xs:element name="exceptionname" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="exceptionname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of exceptionname.element -->
+  <xs:attributeGroup name="exceptionname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="exceptionname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of exceptionname.attlist -->
+  <!-- end of exceptionname.module -->
+  <xs:attributeGroup name="fieldsynopsis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a field in a class definition. -->
+  <xs:element name="fieldsynopsis" substitutionGroup="synop.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+        <xs:element minOccurs="0" ref="type"/>
+        <xs:element ref="varname"/>
+        <xs:element minOccurs="0" ref="initializer"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="fieldsynopsis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of fieldsynopsis.element -->
+  <xs:attributeGroup name="fieldsynopsis.attlist">
+    <xs:attribute name="language"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="fieldsynopsis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of fieldsynopsis.attlist -->
+  <!-- end of fieldsynopsis.module -->
+  <xs:attributeGroup name="initializer.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The initializer for a FieldSynopsis. -->
+  <xs:element name="initializer">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="initializer.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of initializer.element -->
+  <xs:attributeGroup name="initializer.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="initializer.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of initializer.attlist -->
+  <!-- end of initializer.module -->
+  <xs:attributeGroup name="constructorsynopsis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A syntax summary for a constructor. -->
+  <xs:element name="constructorsynopsis" substitutionGroup="method.synop.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+        <xs:element minOccurs="0" ref="methodname"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="methodparam"/>
+          <xs:element minOccurs="0" ref="void"/>
+        </xs:choice>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="exceptionname"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="constructorsynopsis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of constructorsynopsis.element -->
+  <xs:attributeGroup name="constructorsynopsis.attlist">
+    <xs:attribute name="language"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="constructorsynopsis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of constructorsynopsis.attlist -->
+  <!-- end of constructorsynopsis.module -->
+  <xs:attributeGroup name="destructorsynopsis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A syntax summary for a destructor. -->
+  <xs:element name="destructorsynopsis" substitutionGroup="method.synop.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+        <xs:element minOccurs="0" ref="methodname"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="methodparam"/>
+          <xs:element minOccurs="0" ref="void"/>
+        </xs:choice>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="exceptionname"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="destructorsynopsis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of destructorsynopsis.element -->
+  <xs:attributeGroup name="destructorsynopsis.attlist">
+    <xs:attribute name="language"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="destructorsynopsis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of destructorsynopsis.attlist -->
+  <!-- end of destructorsynopsis.module -->
+  <xs:attributeGroup name="methodsynopsis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A syntax summary for a method. -->
+  <xs:element name="methodsynopsis" substitutionGroup="method.synop.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+        <xs:choice minOccurs="0">
+          <xs:element ref="type"/>
+          <xs:element ref="void"/>
+        </xs:choice>
+        <xs:element ref="methodname"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="methodparam"/>
+          <xs:element minOccurs="0" ref="void"/>
+        </xs:choice>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="exceptionname"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="methodsynopsis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of methodsynopsis.element -->
+  <xs:attributeGroup name="methodsynopsis.attlist">
+    <xs:attribute name="language"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="methodsynopsis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of methodsynopsis.attlist -->
+  <!-- end of methodsynopsis.module -->
+  <xs:attributeGroup name="methodname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a method. -->
+  <xs:element name="methodname" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="methodname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of methodname.element -->
+  <xs:attributeGroup name="methodname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="methodname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of methodname.attlist -->
+  <!-- end of methodname.module -->
+  <xs:attributeGroup name="methodparam.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Parameters to a method. -->
+  <xs:element name="methodparam">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+        <xs:element minOccurs="0" ref="type"/>
+        <xs:choice>
+          <xs:sequence>
+            <xs:element ref="parameter"/>
+            <xs:element minOccurs="0" ref="initializer"/>
+          </xs:sequence>
+          <xs:element ref="funcparams"/>
+        </xs:choice>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="methodparam.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of methodparam.element -->
+  <xs:attributeGroup name="methodparam.attlist">
+    <xs:attribute name="choice" default="req">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="opt"/>
+          <xs:enumeration value="req"/>
+          <xs:enumeration value="plain"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="rep" default="norepeat">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="norepeat"/>
+          <xs:enumeration value="repeat"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="methodparam.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of methodparam.attlist -->
+  <!-- end of methodparam.module -->
+  <!-- end of classsynopsis.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Document information entities and elements ........................... -->
+  <!--
+    The document information elements include some elements that are
+    currently used only in the document hierarchy module. They are
+    defined here so that they will be available for use in customized
+    document hierarchies.
+  -->
+  <!-- .................................. -->
+  <!-- Ackno ............................ -->
+  <xs:attributeGroup name="ackno.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Acknowledgements in an Article. -->
+  <xs:element name="ackno">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="ackno.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of ackno.element -->
+  <xs:attributeGroup name="ackno.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="ackno.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of ackno.attlist -->
+  <!-- end of ackno.module -->
+  <!-- Address .......................... -->
+  <xs:attributeGroup name="address.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A real-world address, generally a postal address. -->
+  <xs:element name="address" substitutionGroup="informal.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="personname"/>
+        <xs:group ref="person.ident.mix"/>
+        <xs:element ref="street"/>
+        <xs:element ref="pob"/>
+        <xs:element ref="postcode"/>
+        <xs:element ref="city"/>
+        <xs:element ref="state"/>
+        <xs:element ref="country"/>
+        <xs:element ref="phone"/>
+        <xs:element ref="fax"/>
+        <xs:element ref="email"/>
+        <xs:element ref="otheraddr"/>
+      </xs:choice>
+      <xs:attributeGroup ref="address.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of address.element -->
+  <xs:attributeGroup name="address.attlist">
+    <xs:attributeGroup ref="linespecific.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="address.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of address.attlist -->
+  <!-- end of address.module -->
+  <xs:attributeGroup name="street.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A street address in an address. -->
+  <xs:element name="street">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="street.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of street.element -->
+  <xs:attributeGroup name="street.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="street.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of street.attlist -->
+  <!-- end of street.module -->
+  <xs:attributeGroup name="pob.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A post office box in an address. -->
+  <xs:element name="pob">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="pob.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of pob.element -->
+  <xs:attributeGroup name="pob.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="pob.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of pob.attlist -->
+  <!-- end of pob.module -->
+  <xs:attributeGroup name="postcode.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A postal code in an address. -->
+  <xs:element name="postcode">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="postcode.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of postcode.element -->
+  <xs:attributeGroup name="postcode.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="postcode.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of postcode.attlist -->
+  <!-- end of postcode.module -->
+  <xs:attributeGroup name="city.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a city in an address. -->
+  <xs:element name="city">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="city.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of city.element -->
+  <xs:attributeGroup name="city.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="city.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of city.attlist -->
+  <!-- end of city.module -->
+  <xs:attributeGroup name="state.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A state or province in an address. -->
+  <xs:element name="state">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="state.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of state.element -->
+  <xs:attributeGroup name="state.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="state.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of state.attlist -->
+  <!-- end of state.module -->
+  <xs:attributeGroup name="country.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a country. -->
+  <xs:element name="country">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="country.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of country.element -->
+  <xs:attributeGroup name="country.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="country.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of country.attlist -->
+  <!-- end of country.module -->
+  <xs:attributeGroup name="phone.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A telephone number. -->
+  <xs:element name="phone">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="phone.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of phone.element -->
+  <xs:attributeGroup name="phone.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="phone.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of phone.attlist -->
+  <!-- end of phone.module -->
+  <xs:attributeGroup name="fax.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A fax number. -->
+  <xs:element name="fax">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="fax.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of fax.element -->
+  <xs:attributeGroup name="fax.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="fax.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of fax.attlist -->
+  <!-- end of fax.module -->
+  <!-- Email (defined in the Inlines section, below) -->
+  <xs:attributeGroup name="otheraddr.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Uncategorized information in address. -->
+  <xs:element name="otheraddr">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="otheraddr.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of otheraddr.element -->
+  <xs:attributeGroup name="otheraddr.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="otheraddr.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of otheraddr.attlist -->
+  <!-- end of otheraddr.module -->
+  <!-- end of address.content.module -->
+  <!-- Affiliation ...................... -->
+  <xs:attributeGroup name="affiliation.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The institutional affiliation of an individual. -->
+  <xs:element name="affiliation">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="shortaffil"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="jobtitle"/>
+        <xs:element minOccurs="0" ref="orgname"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="orgdiv"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="address"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="affiliation.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of affiliation.element -->
+  <xs:attributeGroup name="affiliation.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="affiliation.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of affiliation.attlist -->
+  <!-- end of affiliation.module -->
+  <xs:attributeGroup name="shortaffil.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A brief description of an affiliation. -->
+  <xs:element name="shortaffil">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="shortaffil.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of shortaffil.element -->
+  <xs:attributeGroup name="shortaffil.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="shortaffil.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of shortaffil.attlist -->
+  <!-- end of shortaffil.module -->
+  <xs:attributeGroup name="jobtitle.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The title of an individual in an organization. -->
+  <xs:element name="jobtitle">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="jobtitle.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of jobtitle.element -->
+  <xs:attributeGroup name="jobtitle.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="jobtitle.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of jobtitle.attlist -->
+  <!-- end of jobtitle.module -->
+  <!-- OrgName (defined elsewhere in this section) -->
+  <xs:attributeGroup name="orgdiv.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A division of an organization. -->
+  <xs:element name="orgdiv">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="orgdiv.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of orgdiv.element -->
+  <xs:attributeGroup name="orgdiv.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="orgdiv.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of orgdiv.attlist -->
+  <!-- end of orgdiv.module -->
+  <!-- Address (defined elsewhere in this section) -->
+  <!-- end of affiliation.content.module -->
+  <!-- ArtPageNums ...................... -->
+  <xs:attributeGroup name="artpagenums.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The page numbers of an article as published. -->
+  <xs:element name="artpagenums">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="artpagenums.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of artpagenums.element -->
+  <xs:attributeGroup name="artpagenums.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="artpagenums.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of artpagenums.attlist -->
+  <!-- end of artpagenums.module -->
+  <!-- PersonName -->
+  <xs:attributeGroup name="personname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The personal name of an individual. -->
+  <xs:element name="personname" substitutionGroup="gen.char.class">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="honorific"/>
+        <xs:element ref="firstname"/>
+        <xs:element ref="surname"/>
+        <xs:element ref="lineage"/>
+        <xs:element ref="othername"/>
+      </xs:choice>
+      <xs:attributeGroup ref="personname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of personname.element -->
+  <xs:attributeGroup name="personname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="personname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of personname.attlist -->
+  <!-- end of personname.module -->
+  <!-- Author ........................... -->
+  <xs:attributeGroup name="author.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of an individual author. -->
+  <xs:element name="author" substitutionGroup="docinfo.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice>
+          <xs:element ref="personname"/>
+          <xs:group maxOccurs="unbounded" ref="person.ident.mix"/>
+        </xs:choice>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="personblurb"/>
+          <xs:element ref="email"/>
+          <xs:element ref="address"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="author.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of author.element -->
+  <xs:attributeGroup name="author.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="author.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of author.attlist -->
+  <!-- (see "Personal identity elements" for %person.ident.mix;) -->
+  <!-- end of author.module -->
+  <!-- AuthorGroup ...................... -->
+  <xs:attributeGroup name="authorgroup.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Wrapper for author information when a document has multiple authors or collabarators. -->
+  <xs:element name="authorgroup">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="author"/>
+        <xs:element ref="editor"/>
+        <xs:element ref="collab"/>
+        <xs:element ref="corpauthor"/>
+        <xs:element ref="corpcredit"/>
+        <xs:element ref="othercredit"/>
+      </xs:choice>
+      <xs:attributeGroup ref="authorgroup.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of authorgroup.element -->
+  <xs:attributeGroup name="authorgroup.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="authorgroup.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of authorgroup.attlist -->
+  <!-- end of authorgroup.module -->
+  <!-- Author (defined elsewhere in this section) -->
+  <!-- Editor (defined elsewhere in this section) -->
+  <xs:attributeGroup name="collab.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Identifies a collaborator. -->
+  <xs:element name="collab">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="collabname"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="affiliation"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="collab.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of collab.element -->
+  <xs:attributeGroup name="collab.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="collab.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of collab.attlist -->
+  <!-- end of collab.module -->
+  <xs:attributeGroup name="collabname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a collaborator. -->
+  <xs:element name="collabname">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="collabname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of collabname.element -->
+  <xs:attributeGroup name="collabname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="collabname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of collabname.attlist -->
+  <!-- end of collabname.module -->
+  <!-- Affiliation (defined elsewhere in this section) -->
+  <!-- end of collab.content.module -->
+  <!-- CorpAuthor (defined elsewhere in this section) -->
+  <!-- OtherCredit (defined elsewhere in this section) -->
+  <!-- end of authorgroup.content.module -->
+  <!-- AuthorInitials ................... -->
+  <xs:attributeGroup name="authorinitials.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The initials or other short identifier for an author. -->
+  <xs:element name="authorinitials" substitutionGroup="docinfo.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="authorinitials.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of authorinitials.element -->
+  <xs:attributeGroup name="authorinitials.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="authorinitials.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of authorinitials.attlist -->
+  <!-- end of authorinitials.module -->
+  <!-- ConfGroup ........................ -->
+  <xs:attributeGroup name="confgroup.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for document meta-information about a conference. -->
+  <xs:element name="confgroup">
+    <xs:complexType>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="confdates"/>
+        <xs:element ref="conftitle"/>
+        <xs:element ref="confnum"/>
+        <xs:element ref="address"/>
+        <xs:element ref="confsponsor"/>
+      </xs:choice>
+      <xs:attributeGroup ref="confgroup.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of confgroup.element -->
+  <xs:attributeGroup name="confgroup.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="confgroup.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of confgroup.attlist -->
+  <!-- end of confgroup.module -->
+  <xs:attributeGroup name="confdates.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The dates of a conference for which a document was written. -->
+  <xs:element name="confdates">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="confdates.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of confdates.element -->
+  <xs:attributeGroup name="confdates.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="confdates.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of confdates.attlist -->
+  <!-- end of confdates.module -->
+  <xs:attributeGroup name="conftitle.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The title of a conference for which a document was written. -->
+  <xs:element name="conftitle">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="conftitle.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of conftitle.element -->
+  <xs:attributeGroup name="conftitle.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="conftitle.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of conftitle.attlist -->
+  <!-- end of conftitle.module -->
+  <xs:attributeGroup name="confnum.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An identifier, frequently numerical, associated with a conference for which a document was written. -->
+  <xs:element name="confnum">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="confnum.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of confnum.element -->
+  <xs:attributeGroup name="confnum.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="confnum.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of confnum.attlist -->
+  <!-- end of confnum.module -->
+  <!-- Address (defined elsewhere in this section) -->
+  <xs:attributeGroup name="confsponsor.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The sponsor of a conference for which a document was written. -->
+  <xs:element name="confsponsor">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="confsponsor.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of confsponsor.element -->
+  <xs:attributeGroup name="confsponsor.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="confsponsor.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of confsponsor.attlist -->
+  <!-- end of confsponsor.module -->
+  <!-- end of confgroup.content.module -->
+  <!-- ContractNum ...................... -->
+  <xs:attributeGroup name="contractnum.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The contract number of a document. -->
+  <xs:element name="contractnum">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="contractnum.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of contractnum.element -->
+  <xs:attributeGroup name="contractnum.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="contractnum.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of contractnum.attlist -->
+  <!-- end of contractnum.module -->
+  <!-- ContractSponsor .................. -->
+  <xs:attributeGroup name="contractsponsor.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The sponsor of a contract. -->
+  <xs:element name="contractsponsor">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="contractsponsor.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of contractsponsor.element -->
+  <xs:attributeGroup name="contractsponsor.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="contractsponsor.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of contractsponsor.attlist -->
+  <!-- end of contractsponsor.module -->
+  <!-- Copyright ........................ -->
+  <xs:attributeGroup name="copyright.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Copyright information about a document. -->
+  <xs:element name="copyright">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="year"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="holder"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="copyright.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of copyright.element -->
+  <xs:attributeGroup name="copyright.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="copyright.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of copyright.attlist -->
+  <!-- end of copyright.module -->
+  <xs:attributeGroup name="year.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The year of publication of a document. -->
+  <xs:element name="year">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="year.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of year.element -->
+  <xs:attributeGroup name="year.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="year.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of year.attlist -->
+  <!-- end of year.module -->
+  <xs:attributeGroup name="holder.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of the individual or organization that holds a copyright. -->
+  <xs:element name="holder">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="holder.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of holder.element -->
+  <xs:attributeGroup name="holder.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="holder.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of holder.attlist -->
+  <!-- end of holder.module -->
+  <!-- end of copyright.content.module -->
+  <!-- CorpAuthor ....................... -->
+  <xs:attributeGroup name="corpauthor.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A corporate author, as opposed to an individual. -->
+  <xs:element name="corpauthor" substitutionGroup="docinfo.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="corpauthor.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of corpauthor.element -->
+  <xs:attributeGroup name="corpauthor.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="corpauthor.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of corpauthor.attlist -->
+  <!-- end of corpauthor.module -->
+  <!-- CorpCredit ...................... -->
+  <xs:attributeGroup name="corpcredit.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A corporation or organization credited in a document. -->
+  <xs:element name="corpcredit" substitutionGroup="docinfo.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="corpcredit.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of corpcredit.element -->
+  <xs:attributeGroup name="corpcredit.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="graphicdesigner"/>
+          <xs:enumeration value="productioneditor"/>
+          <xs:enumeration value="copyeditor"/>
+          <xs:enumeration value="technicaleditor"/>
+          <xs:enumeration value="translator"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="corpcredit.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of corpcredit.attlist -->
+  <!-- end of corpcredit.module -->
+  <!-- CorpName ......................... -->
+  <!-- doc:The name of a corporation. -->
+  <xs:element name="corpname">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="corpname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of corpname.element -->
+  <xs:attributeGroup name="corpname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="corpname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="corpname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of corpname.attlist -->
+  <!-- end of corpname.module -->
+  <!-- Date ............................. -->
+  <xs:attributeGroup name="date.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The date of publication or revision of a document. -->
+  <xs:element name="date">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="date.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of date.element -->
+  <xs:attributeGroup name="date.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="date.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of date.attlist -->
+  <!-- end of date.module -->
+  <!-- Edition .......................... -->
+  <xs:attributeGroup name="edition.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name or number of an edition of a document. -->
+  <xs:element name="edition">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="edition.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of edition.element -->
+  <xs:attributeGroup name="edition.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="edition.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of edition.attlist -->
+  <!-- end of edition.module -->
+  <!-- Editor ........................... -->
+  <xs:attributeGroup name="editor.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of the editor of a document. -->
+  <xs:element name="editor">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice>
+          <xs:element ref="personname"/>
+          <xs:group maxOccurs="unbounded" ref="person.ident.mix"/>
+        </xs:choice>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="personblurb"/>
+          <xs:element ref="email"/>
+          <xs:element ref="address"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="editor.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of editor.element -->
+  <xs:attributeGroup name="editor.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="editor.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of editor.attlist -->
+  <!-- (see "Personal identity elements" for %person.ident.mix;) -->
+  <!-- end of editor.module -->
+  <!-- ISBN ............................. -->
+  <xs:attributeGroup name="isbn.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The International Standard Book Number of a document. -->
+  <xs:element name="isbn">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="isbn.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of isbn.element -->
+  <xs:attributeGroup name="isbn.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="isbn.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of isbn.attlist -->
+  <!-- end of isbn.module -->
+  <!-- ISSN ............................. -->
+  <xs:attributeGroup name="issn.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The International Standard Serial Number of a periodical. -->
+  <xs:element name="issn">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="issn.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of issn.element -->
+  <xs:attributeGroup name="issn.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="issn.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of issn.attlist -->
+  <!-- end of issn.module -->
+  <!-- BiblioId ................. -->
+  <xs:attributeGroup name="biblio.class.attrib">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="uri"/>
+          <xs:enumeration value="doi"/>
+          <xs:enumeration value="isbn"/>
+          <xs:enumeration value="isrn"/>
+          <xs:enumeration value="issn"/>
+          <xs:enumeration value="libraryofcongress"/>
+          <xs:enumeration value="pubnumber"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="otherclass"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="biblioid.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An identifier for a document. -->
+  <xs:element name="biblioid">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="biblioid.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of biblioid.element -->
+  <xs:attributeGroup name="biblioid.attlist">
+    <xs:attributeGroup ref="biblio.class.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="biblioid.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of biblioid.attlist -->
+  <!-- end of biblioid.module -->
+  <!-- CiteBiblioId ................. -->
+  <xs:attributeGroup name="citebiblioid.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A citation of a bibliographic identifier. -->
+  <xs:element name="citebiblioid" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="citebiblioid.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of citebiblioid.element -->
+  <xs:attributeGroup name="citebiblioid.attlist">
+    <xs:attributeGroup ref="biblio.class.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="citebiblioid.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of citebiblioid.attlist -->
+  <!-- end of citebiblioid.module -->
+  <!-- BiblioSource ................. -->
+  <xs:attributeGroup name="bibliosource.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The source of a document. -->
+  <xs:element name="bibliosource">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="bibliosource.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliosource.element -->
+  <xs:attributeGroup name="bibliosource.attlist">
+    <xs:attributeGroup ref="biblio.class.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliosource.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliosource.attlist -->
+  <!-- end of bibliosource.module -->
+  <!-- BiblioRelation ................. -->
+  <xs:attributeGroup name="bibliorelation.type.attrib">
+    <xs:attribute name="type">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="isversionof"/>
+          <xs:enumeration value="hasversion"/>
+          <xs:enumeration value="isreplacedby"/>
+          <xs:enumeration value="replaces"/>
+          <xs:enumeration value="isrequiredby"/>
+          <xs:enumeration value="requires"/>
+          <xs:enumeration value="ispartof"/>
+          <xs:enumeration value="haspart"/>
+          <xs:enumeration value="isreferencedby"/>
+          <xs:enumeration value="references"/>
+          <xs:enumeration value="isformatof"/>
+          <xs:enumeration value="hasformat"/>
+          <xs:enumeration value="othertype"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="othertype"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="bibliorelation.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The relationship of a document to another. -->
+  <xs:element name="bibliorelation">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="bibliorelation.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliorelation.element -->
+  <xs:attributeGroup name="bibliorelation.attlist">
+    <xs:attributeGroup ref="biblio.class.attrib"/>
+    <xs:attributeGroup ref="bibliorelation.type.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliorelation.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliorelation.attlist -->
+  <!-- end of bibliorelation.module -->
+  <!-- BiblioCoverage ................. -->
+  <xs:attributeGroup name="bibliocoverage.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The spatial or temporal coverage of a document. -->
+  <xs:element name="bibliocoverage">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="bibliocoverage.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of bibliocoverage.element -->
+  <xs:attributeGroup name="bibliocoverage.attlist">
+    <xs:attribute name="spatial">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="dcmipoint"/>
+          <xs:enumeration value="iso3166"/>
+          <xs:enumeration value="dcmibox"/>
+          <xs:enumeration value="tgn"/>
+          <xs:enumeration value="otherspatial"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="otherspatial"/>
+    <xs:attribute name="temporal">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="dcmiperiod"/>
+          <xs:enumeration value="w3c-dtf"/>
+          <xs:enumeration value="othertemporal"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="othertemporal"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="bibliocoverage.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of bibliocoverage.attlist -->
+  <!-- end of bibliocoverage.module -->
+  <!-- InvPartNumber .................... -->
+  <xs:attributeGroup name="invpartnumber.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An inventory part number. -->
+  <xs:element name="invpartnumber">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="invpartnumber.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of invpartnumber.element -->
+  <xs:attributeGroup name="invpartnumber.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="invpartnumber.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of invpartnumber.attlist -->
+  <!-- end of invpartnumber.module -->
+  <!-- IssueNum ......................... -->
+  <xs:attributeGroup name="issuenum.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The number of an issue of a journal. -->
+  <xs:element name="issuenum">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="issuenum.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of issuenum.element -->
+  <xs:attributeGroup name="issuenum.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="issuenum.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of issuenum.attlist -->
+  <!-- end of issuenum.module -->
+  <!-- LegalNotice ...................... -->
+  <xs:attributeGroup name="legalnotice.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A statement of legal obligations or requirements. -->
+  <xs:element name="legalnotice">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:element minOccurs="0" ref="title"/>
+        <xs:group maxOccurs="unbounded" ref="legalnotice.mix"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="legalnotice.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of legalnotice.element -->
+  <xs:attributeGroup name="legalnotice.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="legalnotice.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of legalnotice.attlist -->
+  <!-- end of legalnotice.module -->
+  <!-- ModeSpec ......................... -->
+  <xs:attributeGroup name="modespec.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Application-specific information necessary for the completion of an OLink. -->
+  <xs:element name="modespec" substitutionGroup="docinfo.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="modespec.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of modespec.element -->
+  <!--
+    Application: Type of action required for completion
+    of the links to which the ModeSpec is relevant (e.g.,
+    retrieval query)
+  -->
+  <xs:attributeGroup name="modespec.attlist">
+    <xs:attribute name="application" type="notation.class"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="modespec.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of modespec.attlist -->
+  <!-- end of modespec.module -->
+  <!-- OrgName .......................... -->
+  <xs:attributeGroup name="orgname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of an organization other than a corporation. -->
+  <xs:element name="orgname" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="orgname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of orgname.element -->
+  <xs:attributeGroup name="orgname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="corporation"/>
+          <xs:enumeration value="nonprofit"/>
+          <xs:enumeration value="consortium"/>
+          <xs:enumeration value="informal"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="otherclass"/>
+    <xs:attributeGroup ref="orgname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of orgname.attlist -->
+  <!-- end of orgname.module -->
+  <!-- OtherCredit ...................... -->
+  <xs:attributeGroup name="othercredit.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A person or entity, other than an author or editor, credited in a document. -->
+  <xs:element name="othercredit" substitutionGroup="docinfo.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice>
+          <xs:element ref="personname"/>
+          <xs:group maxOccurs="unbounded" ref="person.ident.mix"/>
+        </xs:choice>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="personblurb"/>
+          <xs:element ref="email"/>
+          <xs:element ref="address"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="othercredit.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of othercredit.element -->
+  <xs:attributeGroup name="othercredit.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="graphicdesigner"/>
+          <xs:enumeration value="productioneditor"/>
+          <xs:enumeration value="copyeditor"/>
+          <xs:enumeration value="technicaleditor"/>
+          <xs:enumeration value="translator"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="othercredit.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of othercredit.attlist -->
+  <!-- (see "Personal identity elements" for %person.ident.mix;) -->
+  <!-- end of othercredit.module -->
+  <!-- PageNums ......................... -->
+  <xs:attributeGroup name="pagenums.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The numbers of the pages in a book, for use in a bibliographic entry. -->
+  <xs:element name="pagenums">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="pagenums.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of pagenums.element -->
+  <xs:attributeGroup name="pagenums.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="pagenums.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of pagenums.attlist -->
+  <!-- end of pagenums.module -->
+  <!-- Personal identity elements ....... -->
+  <!--
+    These elements are used only within Author, Editor, and
+    OtherCredit.
+  -->
+  <xs:attributeGroup name="contrib.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A summary of the contributions made to a document by a credited source. -->
+  <xs:element name="contrib">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="contrib.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of contrib.element -->
+  <xs:attributeGroup name="contrib.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="contrib.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of contrib.attlist -->
+  <!-- end of contrib.module -->
+  <xs:attributeGroup name="firstname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The first name of a person. -->
+  <xs:element name="firstname">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="firstname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of firstname.element -->
+  <xs:attributeGroup name="firstname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="firstname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of firstname.attlist -->
+  <!-- end of firstname.module -->
+  <xs:attributeGroup name="honorific.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The title of a person. -->
+  <xs:element name="honorific">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="honorific.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of honorific.element -->
+  <xs:attributeGroup name="honorific.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="honorific.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of honorific.attlist -->
+  <!-- end of honorific.module -->
+  <xs:attributeGroup name="lineage.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The portion of a person's name indicating a relationship to ancestors. -->
+  <xs:element name="lineage">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="lineage.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of lineage.element -->
+  <xs:attributeGroup name="lineage.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="lineage.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of lineage.attlist -->
+  <!-- end of lineage.module -->
+  <xs:attributeGroup name="othername.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A component of a persons name that is not a first name, surname, or lineage. -->
+  <xs:element name="othername">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="othername.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of othername.element -->
+  <xs:attributeGroup name="othername.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="othername.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of othername.attlist -->
+  <!-- end of othername.module -->
+  <xs:attributeGroup name="surname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A family name; in western cultures the last name. -->
+  <xs:element name="surname">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="surname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of surname.element -->
+  <xs:attributeGroup name="surname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="surname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of surname.attlist -->
+  <!-- end of surname.module -->
+  <!-- end of person.ident.module -->
+  <!-- PrintHistory ..................... -->
+  <xs:attributeGroup name="printhistory.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The printing history of a document. -->
+  <xs:element name="printhistory">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="para.class"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="printhistory.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of printhistory.element -->
+  <xs:attributeGroup name="printhistory.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="printhistory.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of printhistory.attlist -->
+  <!-- end of printhistory.module -->
+  <!-- ProductName ...................... -->
+  <xs:attributeGroup name="productname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The formal name of a product. -->
+  <xs:element name="productname" substitutionGroup="docinfo.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="productname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of productname.element -->
+  <!-- Class: More precisely identifies the item the element names -->
+  <xs:attributeGroup name="productname.attlist">
+    <xs:attribute name="class" default="trade">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="service"/>
+          <xs:enumeration value="trade"/>
+          <xs:enumeration value="registered"/>
+          <xs:enumeration value="copyright"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="productname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of productname.attlist -->
+  <!-- end of productname.module -->
+  <!-- ProductNumber .................... -->
+  <xs:attributeGroup name="productnumber.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A number assigned to a product. -->
+  <xs:element name="productnumber" substitutionGroup="docinfo.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="productnumber.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of productnumber.element -->
+  <xs:attributeGroup name="productnumber.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="productnumber.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of productnumber.attlist -->
+  <!-- end of productnumber.module -->
+  <!-- PubDate .......................... -->
+  <xs:attributeGroup name="pubdate.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The date of publication of a document. -->
+  <xs:element name="pubdate">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="pubdate.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of pubdate.element -->
+  <xs:attributeGroup name="pubdate.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="pubdate.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of pubdate.attlist -->
+  <!-- end of pubdate.module -->
+  <!-- Publisher ........................ -->
+  <xs:attributeGroup name="publisher.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The publisher of a document. -->
+  <xs:element name="publisher">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="publishername"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="address"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="publisher.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of publisher.element -->
+  <xs:attributeGroup name="publisher.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="publisher.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of publisher.attlist -->
+  <!-- end of publisher.module -->
+  <xs:attributeGroup name="publishername.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of the publisher of a document. -->
+  <xs:element name="publishername">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="publishername.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of publishername.element -->
+  <xs:attributeGroup name="publishername.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="publishername.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of publishername.attlist -->
+  <!-- end of publishername.module -->
+  <!-- Address (defined elsewhere in this section) -->
+  <!-- end of publisher.content.module -->
+  <!-- PubsNumber ....................... -->
+  <xs:attributeGroup name="pubsnumber.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A number assigned to a publication other than an ISBN or ISSN or inventory part number. -->
+  <xs:element name="pubsnumber">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="pubsnumber.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of pubsnumber.element -->
+  <xs:attributeGroup name="pubsnumber.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="pubsnumber.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of pubsnumber.attlist -->
+  <!-- end of pubsnumber.module -->
+  <!-- ReleaseInfo ...................... -->
+  <xs:attributeGroup name="releaseinfo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Information about a particular release of a document. -->
+  <xs:element name="releaseinfo">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="releaseinfo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of releaseinfo.element -->
+  <xs:attributeGroup name="releaseinfo.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="releaseinfo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of releaseinfo.attlist -->
+  <!-- end of releaseinfo.module -->
+  <!-- RevHistory ....................... -->
+  <xs:attributeGroup name="revhistory.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A history of the revisions to a document. -->
+  <xs:element name="revhistory" substitutionGroup="docinfo.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="revision"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="revhistory.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of revhistory.element -->
+  <xs:attributeGroup name="revhistory.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="revhistory.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of revhistory.attlist -->
+  <!-- end of revhistory.module -->
+  <xs:attributeGroup name="revision.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An entry describing a single revision in the history of the revisions to a document. -->
+  <xs:element name="revision">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="revnumber"/>
+        <xs:element ref="date"/>
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+          <xs:element ref="author"/>
+          <xs:element ref="authorinitials"/>
+        </xs:choice>
+        <xs:choice minOccurs="0">
+          <xs:element ref="revremark"/>
+          <xs:element ref="revdescription"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="revision.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of revision.element -->
+  <xs:attributeGroup name="revision.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="revision.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of revision.attlist -->
+  <!-- end of revision.module -->
+  <xs:attributeGroup name="revnumber.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A document revision number. -->
+  <xs:element name="revnumber">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="revnumber.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of revnumber.element -->
+  <xs:attributeGroup name="revnumber.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="revnumber.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of revnumber.attlist -->
+  <!-- end of revnumber.module -->
+  <!-- Date (defined elsewhere in this section) -->
+  <!-- AuthorInitials (defined elsewhere in this section) -->
+  <xs:attributeGroup name="revremark.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A description of a revision to a document. -->
+  <xs:element name="revremark">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="revremark.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of revremark.element -->
+  <xs:attributeGroup name="revremark.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="revremark.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of revremark.attlist -->
+  <!-- end of revremark.module -->
+  <xs:attributeGroup name="revdescription.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A extended description of a revision to a document. -->
+  <xs:element name="revdescription">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="revdescription.mix"/>
+      <xs:attributeGroup ref="revdescription.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of revdescription.element -->
+  <xs:attributeGroup name="revdescription.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="revdescription.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of revdescription.attlist -->
+  <!-- end of revdescription.module -->
+  <!-- end of revhistory.content.module -->
+  <!-- SeriesVolNums .................... -->
+  <xs:attributeGroup name="seriesvolnums.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Numbers of the volumes in a series of books. -->
+  <xs:element name="seriesvolnums">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="seriesvolnums.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of seriesvolnums.element -->
+  <xs:attributeGroup name="seriesvolnums.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="seriesvolnums.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of seriesvolnums.attlist -->
+  <!-- end of seriesvolnums.module -->
+  <!-- VolumeNum ........................ -->
+  <xs:attributeGroup name="volumenum.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The volume number of a document in a set (as of books in a set or articles in a journal). -->
+  <xs:element name="volumenum">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="volumenum.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of volumenum.element -->
+  <xs:attributeGroup name="volumenum.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="volumenum.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of volumenum.attlist -->
+  <!-- end of volumenum.module -->
+  <!-- .................................. -->
+  <!-- end of docinfo.content.module -->
+  <!-- ...................................................................... -->
+  <!-- Inline, link, and ubiquitous elements ................................ -->
+  <!-- Technical and computer terms ......................................... -->
+  <xs:attributeGroup name="accel.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A graphical user interface (GUI) keyboard shortcut. -->
+  <xs:element name="accel">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="accel.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of accel.element -->
+  <xs:attributeGroup name="accel.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="accel.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of accel.attlist -->
+  <!-- end of accel.module -->
+  <xs:attributeGroup name="action.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A response to a user event. -->
+  <xs:element name="action" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="action.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of action.element -->
+  <xs:attributeGroup name="action.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="action.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of action.attlist -->
+  <!-- end of action.module -->
+  <xs:attributeGroup name="application.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a software program. -->
+  <xs:element name="application" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="application.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of application.element -->
+  <xs:attributeGroup name="application.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="hardware"/>
+          <xs:enumeration value="software"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="application.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of application.attlist -->
+  <!-- end of application.module -->
+  <xs:attributeGroup name="classname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a class, in the object-oriented programming sense. -->
+  <xs:element name="classname" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="classname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of classname.element -->
+  <xs:attributeGroup name="classname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="classname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of classname.attlist -->
+  <!-- end of classname.module -->
+  <xs:attributeGroup name="package.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A package. -->
+  <xs:element name="package" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="package.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of package.element -->
+  <xs:attributeGroup name="package.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="package.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of package.attlist -->
+  <!-- end of package.module -->
+  <!--
+    CO is a callout area of the LineColumn unit type (a single character
+    position); the position is directly indicated by the location of CO.
+  -->
+  <xs:attributeGroup name="co.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The location of a callout embedded in text. -->
+  <xs:element name="co">
+    <xs:complexType>
+      <xs:attributeGroup ref="co.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of co.element -->
+  <!-- bug number/symbol override or initialization -->
+  <!-- to any related information -->
+  <xs:attributeGroup name="co.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="linkends.attrib"/>
+    <xs:attributeGroup ref="idreq.common.attrib"/>
+    <xs:attributeGroup ref="co.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of co.attlist -->
+  <!-- end of co.module -->
+  <!-- COREF is a reference to a CO -->
+  <xs:attributeGroup name="coref.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A cross reference to a co. -->
+  <xs:element name="coref">
+    <xs:complexType>
+      <xs:attributeGroup ref="coref.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of coref.element -->
+  <!-- bug number/symbol override or initialization -->
+  <!-- to any related information -->
+  <xs:attributeGroup name="coref.attlist">
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="linkendreq.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="coref.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of coref.attlist -->
+  <!-- end of coref.module -->
+  <xs:attributeGroup name="command.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of an executable program or other software command. -->
+  <xs:element name="command" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="command.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of command.element -->
+  <xs:attributeGroup name="command.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="command.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of command.attlist -->
+  <!-- end of command.module -->
+  <xs:attributeGroup name="computeroutput.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Data, generally text, displayed or presented by a computer. -->
+  <xs:element name="computeroutput" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="cptr.char.mix"/>
+        <xs:element ref="co"/>
+      </xs:choice>
+      <xs:attributeGroup ref="computeroutput.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of computeroutput.element -->
+  <xs:attributeGroup name="computeroutput.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="computeroutput.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of computeroutput.attlist -->
+  <!-- end of computeroutput.module -->
+  <xs:attributeGroup name="database.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a database, or part of a database. -->
+  <xs:element name="database" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="database.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of database.element -->
+  <!-- Class: Type of database the element names; no default -->
+  <xs:attributeGroup name="database.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="name"/>
+          <xs:enumeration value="table"/>
+          <xs:enumeration value="field"/>
+          <xs:enumeration value="key1"/>
+          <xs:enumeration value="key2"/>
+          <xs:enumeration value="record"/>
+          <xs:enumeration value="index"/>
+          <xs:enumeration value="view"/>
+          <xs:enumeration value="primarykey"/>
+          <xs:enumeration value="secondarykey"/>
+          <xs:enumeration value="foreignkey"/>
+          <xs:enumeration value="altkey"/>
+          <xs:enumeration value="procedure"/>
+          <xs:enumeration value="datatype"/>
+          <xs:enumeration value="constraint"/>
+          <xs:enumeration value="rule"/>
+          <xs:enumeration value="user"/>
+          <xs:enumeration value="group"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="database.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of database.attlist -->
+  <!-- end of database.module -->
+  <xs:attributeGroup name="email.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An email address. -->
+  <xs:element name="email" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="docinfo.char.mix"/>
+      <xs:attributeGroup ref="email.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of email.element -->
+  <xs:attributeGroup name="email.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="email.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of email.attlist -->
+  <!-- end of email.module -->
+  <xs:attributeGroup name="envar.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A software environment variable. -->
+  <xs:element name="envar" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="envar.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of envar.element -->
+  <xs:attributeGroup name="envar.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="envar.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of envar.attlist -->
+  <!-- end of envar.module -->
+  <xs:attributeGroup name="errorcode.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An error code. -->
+  <xs:element name="errorcode" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="errorcode.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of errorcode.element -->
+  <xs:attributeGroup name="errorcode.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="errorcode.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of errorcode.attlist -->
+  <!-- end of errorcode.module -->
+  <xs:attributeGroup name="errorname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An error name. -->
+  <xs:element name="errorname" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="errorname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of errorname.element -->
+  <xs:attributeGroup name="errorname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="errorname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of errorname.attlist -->
+  <!-- end of errorname.module -->
+  <xs:attributeGroup name="errortext.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An error message.. -->
+  <xs:element name="errortext" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="errortext.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of errortext.element -->
+  <xs:attributeGroup name="errortext.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="errortext.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of errortext.attlist -->
+  <!-- end of errortext.module -->
+  <xs:attributeGroup name="errortype.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The classification of an error message. -->
+  <xs:element name="errortype" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="errortype.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of errortype.element -->
+  <xs:attributeGroup name="errortype.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="errortype.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of errortype.attlist -->
+  <!-- end of errortype.module -->
+  <xs:attributeGroup name="filename.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a file. -->
+  <xs:element name="filename" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="filename.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of filename.element -->
+  <!-- Class: Type of filename the element names; no default -->
+  <!--
+    Path: Search path (possibly system-specific) in which
+    file can be found
+  -->
+  <xs:attributeGroup name="filename.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="headerfile"/>
+          <xs:enumeration value="partition"/>
+          <xs:enumeration value="devicefile"/>
+          <xs:enumeration value="libraryfile"/>
+          <xs:enumeration value="directory"/>
+          <xs:enumeration value="extension"/>
+          <xs:enumeration value="symlink"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="path"/>
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="filename.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of filename.attlist -->
+  <!-- end of filename.module -->
+  <xs:attributeGroup name="function.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a function or subroutine, as in a programming language. -->
+  <xs:element name="function" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="function.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of function.element -->
+  <xs:attributeGroup name="function.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="function.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of function.attlist -->
+  <!-- end of function.module -->
+  <xs:attributeGroup name="guibutton.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The text on a button in a GUI. -->
+  <xs:element name="guibutton" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="smallcptr.char.mix"/>
+        <xs:element ref="accel"/>
+        <xs:element ref="superscript"/>
+        <xs:element ref="subscript"/>
+      </xs:choice>
+      <xs:attributeGroup ref="guibutton.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of guibutton.element -->
+  <xs:attributeGroup name="guibutton.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="guibutton.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of guibutton.attlist -->
+  <!-- end of guibutton.module -->
+  <xs:attributeGroup name="guiicon.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Graphic and/or text appearing as a icon in a GUI. -->
+  <xs:element name="guiicon" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="smallcptr.char.mix"/>
+        <xs:element ref="accel"/>
+        <xs:element ref="superscript"/>
+        <xs:element ref="subscript"/>
+      </xs:choice>
+      <xs:attributeGroup ref="guiicon.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of guiicon.element -->
+  <xs:attributeGroup name="guiicon.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="guiicon.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of guiicon.attlist -->
+  <!-- end of guiicon.module -->
+  <xs:attributeGroup name="guilabel.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The text of a label in a GUI. -->
+  <xs:element name="guilabel" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="smallcptr.char.mix"/>
+        <xs:element ref="accel"/>
+        <xs:element ref="superscript"/>
+        <xs:element ref="subscript"/>
+      </xs:choice>
+      <xs:attributeGroup ref="guilabel.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of guilabel.element -->
+  <xs:attributeGroup name="guilabel.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="guilabel.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of guilabel.attlist -->
+  <!-- end of guilabel.module -->
+  <xs:attributeGroup name="guimenu.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a menu in a GUI. -->
+  <xs:element name="guimenu" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="smallcptr.char.mix"/>
+        <xs:element ref="accel"/>
+        <xs:element ref="superscript"/>
+        <xs:element ref="subscript"/>
+      </xs:choice>
+      <xs:attributeGroup ref="guimenu.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of guimenu.element -->
+  <xs:attributeGroup name="guimenu.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="guimenu.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of guimenu.attlist -->
+  <!-- end of guimenu.module -->
+  <xs:attributeGroup name="guimenuitem.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a terminal menu item in a GUI. -->
+  <xs:element name="guimenuitem" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="smallcptr.char.mix"/>
+        <xs:element ref="accel"/>
+        <xs:element ref="superscript"/>
+        <xs:element ref="subscript"/>
+      </xs:choice>
+      <xs:attributeGroup ref="guimenuitem.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of guimenuitem.element -->
+  <xs:attributeGroup name="guimenuitem.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="guimenuitem.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of guimenuitem.attlist -->
+  <!-- end of guimenuitem.module -->
+  <xs:attributeGroup name="guisubmenu.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a submenu in a GUI. -->
+  <xs:element name="guisubmenu" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="smallcptr.char.mix"/>
+        <xs:element ref="accel"/>
+        <xs:element ref="superscript"/>
+        <xs:element ref="subscript"/>
+      </xs:choice>
+      <xs:attributeGroup ref="guisubmenu.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of guisubmenu.element -->
+  <xs:attributeGroup name="guisubmenu.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="guisubmenu.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of guisubmenu.attlist -->
+  <!-- end of guisubmenu.module -->
+  <xs:attributeGroup name="hardware.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A physical part of a computer system. -->
+  <xs:element name="hardware" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="hardware.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of hardware.element -->
+  <xs:attributeGroup name="hardware.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="hardware.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of hardware.attlist -->
+  <!-- end of hardware.module -->
+  <xs:attributeGroup name="interface.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An element of a GUI. -->
+  <xs:element name="interface" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="smallcptr.char.mix"/>
+        <xs:element ref="accel"/>
+      </xs:choice>
+      <xs:attributeGroup ref="interface.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of interface.element -->
+  <!-- Class: Type of the Interface item; no default -->
+  <xs:attributeGroup name="interface.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="interface.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of interface.attlist -->
+  <!-- end of interface.module -->
+  <xs:attributeGroup name="keycap.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The text printed on a key on a keyboard. -->
+  <xs:element name="keycap" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="keycap.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of keycap.element -->
+  <xs:attributeGroup name="keycap.attlist">
+    <xs:attribute name="function">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="alt"/>
+          <xs:enumeration value="control"/>
+          <xs:enumeration value="shift"/>
+          <xs:enumeration value="meta"/>
+          <xs:enumeration value="escape"/>
+          <xs:enumeration value="enter"/>
+          <xs:enumeration value="tab"/>
+          <xs:enumeration value="backspace"/>
+          <xs:enumeration value="command"/>
+          <xs:enumeration value="option"/>
+          <xs:enumeration value="space"/>
+          <xs:enumeration value="delete"/>
+          <xs:enumeration value="insert"/>
+          <xs:enumeration value="up"/>
+          <xs:enumeration value="down"/>
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="home"/>
+          <xs:enumeration value="end"/>
+          <xs:enumeration value="pageup"/>
+          <xs:enumeration value="pagedown"/>
+          <xs:enumeration value="other"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="otherfunction"/>
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="keycap.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of keycap.attlist -->
+  <!-- end of keycap.module -->
+  <xs:attributeGroup name="keycode.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The internal, frequently numeric, identifier for a key on a keyboard. -->
+  <xs:element name="keycode" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="keycode.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of keycode.element -->
+  <xs:attributeGroup name="keycode.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="keycode.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of keycode.attlist -->
+  <!-- end of keycode.module -->
+  <xs:attributeGroup name="keycombo.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A combination of input actions. -->
+  <xs:element name="keycombo" substitutionGroup="tech.char.class">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="keycap"/>
+        <xs:element ref="keycombo"/>
+        <xs:element ref="keysym"/>
+        <xs:element ref="mousebutton"/>
+      </xs:choice>
+      <xs:attributeGroup ref="keycombo.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of keycombo.element -->
+  <xs:attributeGroup name="keycombo.attlist">
+    <xs:attributeGroup ref="keyaction.attrib"/>
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="keycombo.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of keycombo.attlist -->
+  <!-- end of keycombo.module -->
+  <xs:attributeGroup name="keysysm.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The symbolic name of a key on a keyboard. -->
+  <xs:element name="keysym" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="keysym.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of keysym.element -->
+  <xs:attributeGroup name="keysym.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="keysysm.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of keysym.attlist -->
+  <!-- end of keysym.module -->
+  <xs:attributeGroup name="lineannotation.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A comment on a line in a verbatim listing. -->
+  <xs:element name="lineannotation">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="lineannotation.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of lineannotation.element -->
+  <xs:attributeGroup name="lineannotation.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="lineannotation.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of lineannotation.attlist -->
+  <!-- end of lineannotation.module -->
+  <xs:attributeGroup name="literal.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Inline text that is some literal value. -->
+  <xs:element name="literal" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="literal.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of literal.element -->
+  <xs:attributeGroup name="literal.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="literal.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of literal.attlist -->
+  <!-- end of literal.module -->
+  <xs:attributeGroup name="code.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An inline code fragment. -->
+  <xs:element name="code" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="code.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of code.element -->
+  <xs:attributeGroup name="code.attlist">
+    <xs:attribute name="language"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="code.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of code.attlist -->
+  <!-- end of code.module -->
+  <xs:attributeGroup name="constant.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A programming or system constant. -->
+  <xs:element name="constant" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="constant.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of constant.element -->
+  <xs:attributeGroup name="constant.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="limit"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="constant.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of constant.attlist -->
+  <!-- end of constant.module -->
+  <xs:attributeGroup name="varname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a variable. -->
+  <xs:element name="varname" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="varname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of varname.element -->
+  <xs:attributeGroup name="varname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="varname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of varname.attlist -->
+  <!-- end of varname.module -->
+  <xs:attributeGroup name="markup.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A string of formatting markup in text that is to be represented literally. -->
+  <xs:element name="markup" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="markup.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of markup.element -->
+  <xs:attributeGroup name="markup.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="markup.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of markup.attlist -->
+  <!-- end of markup.module -->
+  <xs:attributeGroup name="medialabel.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A name that identifies the physical medium on which some information resides. -->
+  <xs:element name="medialabel" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="medialabel.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of medialabel.element -->
+  <!-- Class: Type of medium named by the element; no default -->
+  <xs:attributeGroup name="medialabel.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="cartridge"/>
+          <xs:enumeration value="cdrom"/>
+          <xs:enumeration value="disk"/>
+          <xs:enumeration value="tape"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="medialabel.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of medialabel.attlist -->
+  <!-- end of medialabel.module -->
+  <xs:attributeGroup name="menuchoice.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A selection or series of selections from a menu. -->
+  <xs:element name="menuchoice" substitutionGroup="tech.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="shortcut"/>
+        <xs:choice maxOccurs="unbounded">
+          <xs:element ref="guibutton"/>
+          <xs:element ref="guiicon"/>
+          <xs:element ref="guilabel"/>
+          <xs:element ref="guimenu"/>
+          <xs:element ref="guimenuitem"/>
+          <xs:element ref="guisubmenu"/>
+          <xs:element ref="interface"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attributeGroup ref="menuchoice.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of menuchoice.element -->
+  <xs:attributeGroup name="menuchoice.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="menuchoice.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of menuchoice.attlist -->
+  <!-- end of menuchoice.module -->
+  <!-- See also KeyCombo -->
+  <xs:attributeGroup name="shortcut.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A key combination for an action that is also accessible through a menu. -->
+  <xs:element name="shortcut">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="keycap"/>
+        <xs:element ref="keycombo"/>
+        <xs:element ref="keysym"/>
+        <xs:element ref="mousebutton"/>
+      </xs:choice>
+      <xs:attributeGroup ref="shortcut.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of shortcut.element -->
+  <xs:attributeGroup name="shortcut.attlist">
+    <xs:attributeGroup ref="keyaction.attrib"/>
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="shortcut.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of shortcut.attlist -->
+  <!-- end of shortcut.module -->
+  <!-- end of menuchoice.content.module -->
+  <xs:attributeGroup name="mousebutton.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The conventional name of a mouse button. -->
+  <xs:element name="mousebutton" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="mousebutton.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of mousebutton.element -->
+  <xs:attributeGroup name="mousebutton.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="mousebutton.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of mousebutton.attlist -->
+  <!-- end of mousebutton.module -->
+  <xs:attributeGroup name="msgtext.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The actual text of a message component in a message set. -->
+  <xs:element name="msgtext">
+    <xs:complexType>
+      <xs:group maxOccurs="unbounded" ref="component.mix"/>
+      <xs:attributeGroup ref="msgtext.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of msgtext.element -->
+  <xs:attributeGroup name="msgtext.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="msgtext.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of msgtext.attlist -->
+  <!-- end of msgtext.module -->
+  <xs:attributeGroup name="option.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An option for a software command. -->
+  <xs:element name="option" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="option.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of option.element -->
+  <xs:attributeGroup name="option.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="option.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of option.attlist -->
+  <!-- end of option.module -->
+  <xs:attributeGroup name="optional.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Optional information. -->
+  <xs:element name="optional" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="optional.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of optional.element -->
+  <xs:attributeGroup name="optional.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="optional.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of optional.attlist -->
+  <!-- end of optional.module -->
+  <xs:attributeGroup name="parameter.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A value or a symbolic reference to a value. -->
+  <xs:element name="parameter" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="parameter.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of parameter.element -->
+  <!-- Class: Type of the Parameter; no default -->
+  <xs:attributeGroup name="parameter.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="command"/>
+          <xs:enumeration value="function"/>
+          <xs:enumeration value="option"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="parameter.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of parameter.attlist -->
+  <!-- end of parameter.module -->
+  <xs:attributeGroup name="prompt.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A character or string indicating the start of an input field in a  computer display. -->
+  <xs:element name="prompt" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="smallcptr.char.mix"/>
+        <xs:element ref="co"/>
+      </xs:choice>
+      <xs:attributeGroup ref="prompt.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of prompt.element -->
+  <xs:attributeGroup name="prompt.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="prompt.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of prompt.attlist -->
+  <!-- end of prompt.module -->
+  <xs:attributeGroup name="property.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A unit of data associated with some part of a computer system. -->
+  <xs:element name="property" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="cptr.char.mix"/>
+      <xs:attributeGroup ref="property.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of property.element -->
+  <xs:attributeGroup name="property.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="property.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of property.attlist -->
+  <!-- end of property.module -->
+  <xs:attributeGroup name="replaceable.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Content that may or must be replaced by the user. -->
+  <xs:element name="replaceable" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="optional"/>
+        <xs:group ref="base.char.class"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+        <xs:element ref="co"/>
+      </xs:choice>
+      <xs:attributeGroup ref="replaceable.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of replaceable.element -->
+  <!--
+    Class: Type of information the element represents; no
+    default
+  -->
+  <xs:attributeGroup name="replaceable.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="command"/>
+          <xs:enumeration value="function"/>
+          <xs:enumeration value="option"/>
+          <xs:enumeration value="parameter"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="replaceable.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of replaceable.attlist -->
+  <!-- end of replaceable.module -->
+  <xs:attributeGroup name="returnvalue.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The value returned by a function. -->
+  <xs:element name="returnvalue" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="returnvalue.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of returnvalue.element -->
+  <xs:attributeGroup name="returnvalue.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="returnvalue.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of returnvalue.attlist -->
+  <!-- end of returnvalue.module -->
+  <xs:attributeGroup name="sgmltag.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A component of SGML markup. -->
+  <xs:element name="sgmltag" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="sgmltag.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of sgmltag.element -->
+  <!-- Class: Type of SGML construct the element names; no default -->
+  <xs:attributeGroup name="sgmltag.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="attribute"/>
+          <xs:enumeration value="attvalue"/>
+          <xs:enumeration value="element"/>
+          <xs:enumeration value="endtag"/>
+          <xs:enumeration value="emptytag"/>
+          <xs:enumeration value="genentity"/>
+          <xs:enumeration value="numcharref"/>
+          <xs:enumeration value="paramentity"/>
+          <xs:enumeration value="pi"/>
+          <xs:enumeration value="xmlpi"/>
+          <xs:enumeration value="starttag"/>
+          <xs:enumeration value="sgmlcomment"/>
+          <xs:enumeration value="prefix"/>
+          <xs:enumeration value="namespace"/>
+          <xs:enumeration value="localname"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="namespace"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="sgmltag.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of sgmltag.attlist -->
+  <!-- end of sgmltag.module -->
+  <xs:attributeGroup name="structfield.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A field in a structure (in the programming language sense). -->
+  <xs:element name="structfield" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="structfield.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of structfield.element -->
+  <xs:attributeGroup name="structfield.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="structfield.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of structfield.attlist -->
+  <!-- end of structfield.module -->
+  <xs:attributeGroup name="structname.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The name of a structure (in the programming language sense). -->
+  <xs:element name="structname" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="structname.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of structname.element -->
+  <xs:attributeGroup name="structname.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="structname.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of structname.attlist -->
+  <!-- end of structname.module -->
+  <xs:attributeGroup name="symbol.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A name that is replaced by a value before processing. -->
+  <xs:element name="symbol" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="symbol.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of symbol.element -->
+  <!-- Class: Type of symbol; no default -->
+  <xs:attributeGroup name="symbol.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="limit"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="symbol.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of symbol.attlist -->
+  <!-- end of symbol.module -->
+  <xs:attributeGroup name="systemitem.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A system-related item or term. -->
+  <xs:element name="systemitem" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="cptr.char.mix"/>
+        <xs:element ref="acronym"/>
+        <xs:element ref="co"/>
+      </xs:choice>
+      <xs:attributeGroup ref="systemitem.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of systemitem.element -->
+  <!-- Class: Type of system item the element names; no default -->
+  <xs:attributeGroup name="systemitem.attlist">
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="constant"/>
+          <xs:enumeration value="daemon"/>
+          <xs:enumeration value="domainname"/>
+          <xs:enumeration value="etheraddress"/>
+          <xs:enumeration value="event"/>
+          <xs:enumeration value="eventhandler"/>
+          <xs:enumeration value="filesystem"/>
+          <xs:enumeration value="fqdomainname"/>
+          <xs:enumeration value="groupname"/>
+          <xs:enumeration value="ipaddress"/>
+          <xs:enumeration value="library"/>
+          <xs:enumeration value="macro"/>
+          <xs:enumeration value="netmask"/>
+          <xs:enumeration value="newsgroup"/>
+          <xs:enumeration value="osname"/>
+          <xs:enumeration value="protocol"/>
+          <xs:enumeration value="resource"/>
+          <xs:enumeration value="systemname"/>
+          <xs:enumeration value="username"/>
+          <xs:enumeration value="process"/>
+          <xs:enumeration value="server"/>
+          <xs:enumeration value="service"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="systemitem.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of systemitem.attlist -->
+  <!-- end of systemitem.module -->
+  <xs:attributeGroup name="uri.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A Uniform Resource Identifier. -->
+  <xs:element name="uri" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="uri.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of uri.element -->
+  <!-- Type: Type of URI; no default -->
+  <xs:attributeGroup name="uri.attlist">
+    <xs:attribute name="type"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="uri.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of uri.attlist -->
+  <!-- end of uri.module -->
+  <xs:attributeGroup name="token.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A unit of information. -->
+  <xs:element name="token" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="token.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of token.element -->
+  <xs:attributeGroup name="token.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="token.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of token.attlist -->
+  <!-- end of token.module -->
+  <xs:attributeGroup name="type.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The classification of a value. -->
+  <xs:element name="type" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="smallcptr.char.mix"/>
+      <xs:attributeGroup ref="type.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of type.element -->
+  <xs:attributeGroup name="type.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="type.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of type.attlist -->
+  <!-- end of type.module -->
+  <xs:attributeGroup name="userinput.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Data entered by the user. -->
+  <xs:element name="userinput" substitutionGroup="tech.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="cptr.char.mix"/>
+        <xs:element ref="co"/>
+      </xs:choice>
+      <xs:attributeGroup ref="userinput.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of userinput.element -->
+  <xs:attributeGroup name="userinput.attlist">
+    <xs:attributeGroup ref="moreinfo.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="userinput.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of userinput.attlist -->
+  <!-- end of userinput.module -->
+  <xs:attributeGroup name="termdef.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An inline definition of a term. -->
+  <xs:element name="termdef" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="termdef.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of termdef.element -->
+  <xs:attributeGroup name="termdef.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="termdef.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of termdef.attlist -->
+  <!-- end of termdef.module -->
+  <!-- General words and phrases ............................................ -->
+  <xs:attributeGroup name="abbrev.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An abbreviation, especially one followed by a period. -->
+  <xs:element name="abbrev" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="word.char.mix"/>
+      <xs:attributeGroup ref="abbrev.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of abbrev.element -->
+  <xs:attributeGroup name="abbrev.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="abbrev.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of abbrev.attlist -->
+  <!-- end of abbrev.module -->
+  <xs:attributeGroup name="acronym.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An often pronounceable word made from the initial (or selected) letters of a name or phrase. -->
+  <xs:element name="acronym" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="word.char.mix"/>
+      <xs:attributeGroup ref="acronym.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of acronym.element -->
+  <xs:attributeGroup name="acronym.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="acronym.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of acronym.attlist -->
+  <!-- end of acronym.module -->
+  <xs:attributeGroup name="citation.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An inline bibliographic reference to another published work. -->
+  <xs:element name="citation" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="citation.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of citation.element -->
+  <xs:attributeGroup name="citation.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="citation.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of citation.attlist -->
+  <!-- end of citation.module -->
+  <xs:attributeGroup name="citerefentry.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A citation to a reference page. -->
+  <xs:element name="citerefentry" substitutionGroup="gen.char.class">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="refentrytitle"/>
+        <xs:element minOccurs="0" ref="manvolnum"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="citerefentry.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of citerefentry.element -->
+  <xs:attributeGroup name="citerefentry.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="citerefentry.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of citerefentry.attlist -->
+  <!-- end of citerefentry.module -->
+  <xs:attributeGroup name="refentrytitle.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The title of a reference page. -->
+  <xs:element name="refentrytitle">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="refentrytitle.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of refentrytitle.element -->
+  <xs:attributeGroup name="refentrytitle.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="refentrytitle.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of refentrytitle.attlist -->
+  <!-- end of refentrytitle.module -->
+  <xs:attributeGroup name="namvolnum.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A reference volume number. -->
+  <xs:element name="manvolnum">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="word.char.mix"/>
+      <xs:attributeGroup ref="manvolnum.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of manvolnum.element -->
+  <xs:attributeGroup name="manvolnum.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="namvolnum.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of manvolnum.attlist -->
+  <!-- end of manvolnum.module -->
+  <xs:attributeGroup name="citetitle.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The title of a cited work. -->
+  <xs:element name="citetitle" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="citetitle.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of citetitle.element -->
+  <!-- Pubwork: Genre of published work cited; no default -->
+  <xs:attributeGroup name="citetitle.attlist">
+    <xs:attribute name="pubwork">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="article"/>
+          <xs:enumeration value="book"/>
+          <xs:enumeration value="chapter"/>
+          <xs:enumeration value="part"/>
+          <xs:enumeration value="refentry"/>
+          <xs:enumeration value="section"/>
+          <xs:enumeration value="journal"/>
+          <xs:enumeration value="series"/>
+          <xs:enumeration value="set"/>
+          <xs:enumeration value="manuscript"/>
+          <xs:enumeration value="cdrom"/>
+          <xs:enumeration value="dvd"/>
+          <xs:enumeration value="wiki"/>
+          <xs:enumeration value="gopher"/>
+          <xs:enumeration value="bbs"/>
+          <xs:enumeration value="emailmessage"/>
+          <xs:enumeration value="webpage"/>
+          <xs:enumeration value="newsposting"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="citetitle.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of citetitle.attlist -->
+  <!-- end of citetitle.module -->
+  <xs:attributeGroup name="emphasis.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Emphasized text. -->
+  <xs:element name="emphasis" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="emphasis.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of emphasis.element -->
+  <xs:attributeGroup name="emphasis.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="emphasis.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of emphasis.attlist -->
+  <!-- end of emphasis.module -->
+  <xs:attributeGroup name="foreignphrase.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A word or phrase in a language other than the primary language of the document. -->
+  <xs:element name="foreignphrase" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="foreignphrase.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of foreignphrase.element -->
+  <xs:attributeGroup name="foreignphrase.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="foreignphrase.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of foreignphrase.attlist -->
+  <!-- end of foreignphrase.module -->
+  <xs:attributeGroup name="glossterm.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A glossary term. -->
+  <xs:element name="glossterm" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="glossterm.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of glossterm.element -->
+  <!-- to GlossEntry if Glossterm used in text -->
+  <!--
+    BaseForm: Provides the form of GlossTerm to be used
+    for indexing
+  -->
+  <xs:attributeGroup name="glossterm.attlist">
+    <xs:attribute name="baseform"/>
+    <xs:attributeGroup ref="linkend.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="glossterm.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of glossterm.attlist -->
+  <!-- end of glossterm.module -->
+  <xs:attributeGroup name="firstterm.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The first occurrence of a term. -->
+  <xs:element name="firstterm" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="firstterm.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of firstterm.element -->
+  <!-- to GlossEntry or other explanation -->
+  <xs:attributeGroup name="firstterm.attlist">
+    <xs:attribute name="baseform"/>
+    <xs:attributeGroup ref="linkend.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="firstterm.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of firstterm.attlist -->
+  <!-- end of firstterm.module -->
+  <xs:attributeGroup name="phrase.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A span of text. -->
+  <xs:element name="phrase" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="phrase.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of phrase.element -->
+  <xs:attributeGroup name="phrase.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="phrase.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of phrase.attlist -->
+  <!-- end of phrase.module -->
+  <xs:attributeGroup name="quote.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:An inline quotation. -->
+  <xs:element name="quote" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="quote.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of quote.element -->
+  <xs:attributeGroup name="quote.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="quote.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of quote.attlist -->
+  <!-- end of quote.module -->
+  <xs:attributeGroup name="ssscript.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A subscript (as in H{^2}O, the molecular formula for water). -->
+  <xs:element name="subscript">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="emphasis"/>
+        <xs:element ref="replaceable"/>
+        <xs:element ref="symbol"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+        <xs:group ref="base.char.class"/>
+        <xs:group ref="other.char.class"/>
+      </xs:choice>
+      <xs:attributeGroup ref="subscript.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of subscript.element -->
+  <xs:attributeGroup name="subscript.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="ssscript.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of subscript.attlist -->
+  <!-- doc:A superscript (as in x^2, the mathematical notation for x multiplied by itself). -->
+  <xs:element name="superscript">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="emphasis"/>
+        <xs:element ref="replaceable"/>
+        <xs:element ref="symbol"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+        <xs:group ref="base.char.class"/>
+        <xs:group ref="other.char.class"/>
+      </xs:choice>
+      <xs:attributeGroup ref="superscript.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of superscript.element -->
+  <xs:attributeGroup name="superscript.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="ssscript.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of superscript.attlist -->
+  <!-- end of ssscript.module -->
+  <xs:attributeGroup name="trademark.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A trademark. -->
+  <xs:element name="trademark" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="link.char.class"/>
+        <xs:element ref="tech.char.class"/>
+        <xs:group ref="base.char.class"/>
+        <xs:group ref="other.char.class"/>
+        <xs:element ref="inlinegraphic"/>
+        <xs:element ref="inlinemediaobject"/>
+        <xs:element ref="emphasis"/>
+      </xs:choice>
+      <xs:attributeGroup ref="trademark.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of trademark.element -->
+  <!-- Class: More precisely identifies the item the element names -->
+  <xs:attributeGroup name="trademark.attlist">
+    <xs:attribute name="class" default="trade">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="service"/>
+          <xs:enumeration value="trade"/>
+          <xs:enumeration value="registered"/>
+          <xs:enumeration value="copyright"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="trademark.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of trademark.attlist -->
+  <!-- end of trademark.module -->
+  <xs:attributeGroup name="wordasword.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A word meant specifically as a word and not representing anything else. -->
+  <xs:element name="wordasword" substitutionGroup="gen.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="word.char.mix"/>
+      <xs:attributeGroup ref="wordasword.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of wordasword.element -->
+  <xs:attributeGroup name="wordasword.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="wordasword.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of wordasword.attlist -->
+  <!-- end of wordasword.module -->
+  <!-- Links and cross-references ........................................... -->
+  <xs:attributeGroup name="link.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A hypertext link. -->
+  <xs:element name="link" substitutionGroup="link.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="link.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of link.element -->
+  <!--
+    Endterm: ID of element containing text that is to be
+    fetched from elsewhere in the document to appear as
+    the content of this element
+  -->
+  <!-- to linked-to object -->
+  <!-- Type: Freely assignable parameter -->
+  <xs:attributeGroup name="link.attlist">
+    <xs:attribute name="endterm" type="xs:IDREF"/>
+    <xs:attribute name="xrefstyle"/>
+    <xs:attribute name="type"/>
+    <xs:attributeGroup ref="linkendreq.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="link.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of link.attlist -->
+  <!-- end of link.module -->
+  <xs:attributeGroup name="olink.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A link that addresses its target indirectly, through an entity. -->
+  <xs:element name="olink" substitutionGroup="link.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="olink.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of olink.element -->
+  <!-- TargetDocEnt: Name of an entity to be the target of the link -->
+  <!--
+    LinkMode: ID of a ModeSpec containing instructions for
+    operating on the entity named by TargetDocEnt
+  -->
+  <!-- LocalInfo: Information that may be passed to ModeSpec -->
+  <!-- Type: Freely assignable parameter -->
+  <xs:attributeGroup name="olink.attlist">
+    <xs:attribute name="targetdocent" type="xs:ENTITY"/>
+    <xs:attribute name="linkmode" type="xs:IDREF"/>
+    <xs:attribute name="localinfo"/>
+    <xs:attribute name="type"/>
+    <xs:attribute name="targetdoc"/>
+    <xs:attribute name="targetptr"/>
+    <xs:attribute name="xrefstyle"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="olink.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of olink.attlist -->
+  <!-- end of olink.module -->
+  <xs:attributeGroup name="ulink.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A link that addresses its target by means of a URL (Uniform Resource Locator). -->
+  <xs:element name="ulink" substitutionGroup="link.char.class">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="para.char.mix"/>
+      <xs:attributeGroup ref="ulink.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of ulink.element -->
+  <!-- URL: uniform resource locator; the target of the ULink -->
+  <!-- Type: Freely assignable parameter -->
+  <xs:attributeGroup name="ulink.attlist">
+    <xs:attribute name="url" use="required"/>
+    <xs:attribute name="type"/>
+    <xs:attribute name="xrefstyle"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="ulink.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of ulink.attlist -->
+  <!-- end of ulink.module -->
+  <xs:attributeGroup name="footnoteref.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A cross reference to a footnote (a footnote mark). -->
+  <xs:element name="footnoteref" substitutionGroup="xref.char.class">
+    <xs:complexType>
+      <xs:attributeGroup ref="footnoteref.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of footnoteref.element -->
+  <!-- to footnote content supplied elsewhere -->
+  <xs:attributeGroup name="footnoteref.attlist">
+    <xs:attributeGroup ref="linkendreq.attrib"/>
+    <xs:attributeGroup ref="label.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="footnoteref.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of footnoteref.attlist -->
+  <!-- end of footnoteref.module -->
+  <xs:attributeGroup name="xref.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A cross reference to another part of the document. -->
+  <xs:element name="xref" substitutionGroup="xref.char.class">
+    <xs:complexType>
+      <xs:attributeGroup ref="xref.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of xref.element -->
+  <!--
+    Endterm: ID of element containing text that is to be
+    fetched from elsewhere in the document to appear as
+    the content of this element
+  -->
+  <!-- to linked-to object -->
+  <xs:attributeGroup name="xref.attlist">
+    <xs:attribute name="endterm" type="xs:IDREF"/>
+    <xs:attribute name="xrefstyle"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="linkendreq.attrib"/>
+    <xs:attributeGroup ref="xref.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of xref.attlist -->
+  <!-- end of xref.module -->
+  <xs:attributeGroup name="biblioref.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A cross reference to a bibliographic entry. -->
+  <xs:element name="biblioref" substitutionGroup="xref.char.class">
+    <xs:complexType>
+      <xs:attributeGroup ref="biblioref.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of biblioref.element -->
+  <xs:attributeGroup name="biblioref.attlist">
+    <xs:attribute name="endterm" type="xs:IDREF"/>
+    <xs:attribute name="xrefstyle"/>
+    <xs:attribute name="units"/>
+    <xs:attribute name="begin"/>
+    <xs:attribute name="end"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="linkendreq.attrib"/>
+    <xs:attributeGroup ref="biblioref.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of biblioref.attlist -->
+  <!-- end of biblioref.module -->
+  <!-- Ubiquitous elements .................................................. -->
+  <xs:attributeGroup name="anchor.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A spot in the document. -->
+  <xs:element name="anchor">
+    <xs:complexType>
+      <xs:attributeGroup ref="anchor.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of anchor.element -->
+  <!-- required -->
+  <!-- replaces Lang -->
+  <xs:attributeGroup name="anchor.attlist">
+    <xs:attributeGroup ref="idreq.attrib"/>
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attributeGroup ref="remap.attrib"/>
+    <xs:attributeGroup ref="xreflabel.attrib"/>
+    <xs:attributeGroup ref="revisionflag.attrib"/>
+    <xs:attributeGroup ref="effectivity.attrib"/>
+    <xs:attributeGroup ref="anchor.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of anchor.attlist -->
+  <!-- end of anchor.module -->
+  <xs:attributeGroup name="beginpage.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The location of a page break in a print version of the document. -->
+  <xs:element name="beginpage">
+    <xs:complexType>
+      <xs:attributeGroup ref="beginpage.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of beginpage.element -->
+  <!-- PageNum: Number of page that begins at this point -->
+  <xs:attributeGroup name="beginpage.attlist">
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="beginpage.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of beginpage.attlist -->
+  <!-- end of beginpage.module -->
+  <!--
+    IndexTerms appear in the text flow for generating or linking an
+    index.
+  -->
+  <xs:attributeGroup name="indexterm.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:A wrapper for terms to be indexed. -->
+  <xs:element name="indexterm" substitutionGroup="ndxterm.class"/>
+  <!-- end of indexterm.element -->
+  <!--
+    Scope: Indicates which generated indices the IndexTerm
+    should appear in: Global (whole document set), Local (this
+    document only), or All (both)
+  -->
+  <!--
+    Significance: Whether this IndexTerm is the most pertinent
+    of its series (Preferred) or not (Normal, the default)
+  -->
+  <!--
+    Class: Indicates type of IndexTerm; default is Singular,
+    or EndOfRange if StartRef is supplied; StartOfRange value
+    must be supplied explicitly on starts of ranges
+  -->
+  <!--
+    StartRef: ID of the IndexTerm that starts the indexing
+    range ended by this IndexTerm
+  -->
+  <!--
+    Zone: IDs of the elements to which the IndexTerm applies,
+    and indicates that the IndexTerm applies to those entire
+    elements rather than the point at which the IndexTerm
+    occurs
+  -->
+  <xs:attributeGroup name="indexterm.attlist">
+    <xs:attributeGroup ref="pagenum.attrib"/>
+    <xs:attribute name="scope">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="all"/>
+          <xs:enumeration value="global"/>
+          <xs:enumeration value="local"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="significance" default="normal">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="preferred"/>
+          <xs:enumeration value="normal"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="class">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="singular"/>
+          <xs:enumeration value="startofrange"/>
+          <xs:enumeration value="endofrange"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="startref" type="xs:IDREF"/>
+    <xs:attribute name="zone" type="xs:IDREFS"/>
+    <xs:attribute name="type"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="indexterm.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of indexterm.attlist -->
+  <!-- end of indexterm.module -->
+  <xs:attributeGroup name="primsecter.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:The primary word or phrase under which an index term should be sorted. -->
+  <xs:element name="primary">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="primary.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of primary.element -->
+  <!--
+    SortAs: Alternate sort string for index sorting, e.g.,
+    "fourteen" for an element containing "14"
+  -->
+  <xs:attributeGroup name="primary.attlist">
+    <xs:attribute name="sortas"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="primsecter.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of primary.attlist -->
+  <!-- doc:A secondary word or phrase in an index term. -->
+  <xs:element name="secondary">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="secondary.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of secondary.element -->
+  <!--
+    SortAs: Alternate sort string for index sorting, e.g.,
+    "fourteen" for an element containing "14"
+  -->
+  <xs:attributeGroup name="secondary.attlist">
+    <xs:attribute name="sortas"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="primsecter.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of secondary.attlist -->
+  <!-- doc:A tertiary word or phrase in an index term. -->
+  <xs:element name="tertiary">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="tertiary.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of tertiary.element -->
+  <!--
+    SortAs: Alternate sort string for index sorting, e.g.,
+    "fourteen" for an element containing "14"
+  -->
+  <xs:attributeGroup name="tertiary.attlist">
+    <xs:attribute name="sortas"/>
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="primsecter.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of tertiary.attlist -->
+  <!-- end of primsecter.module -->
+  <xs:attributeGroup name="seeseealso.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- doc:Part of an index term directing the reader instead to another entry in the index. -->
+  <xs:element name="see">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="see.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of see.element -->
+  <xs:attributeGroup name="see.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="seeseealso.role.attrib"/>
+  </xs:attributeGroup>
+  <!-- end of see.attlist -->
+  <!-- doc:Part of an index term directing the reader also to another entry in the index. -->
+  <xs:element name="seealso">
+    <xs:complexType mixed="true">
+      <xs:group minOccurs="0" maxOccurs="unbounded" ref="ndxterm.char.mix"/>
+      <xs:attributeGroup ref="seealso.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- end of seealso.element -->
+  <xs:attributeGroup name="seealso.attlist">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attributeGroup ref="seeseealso.role.attrib"/>
+  </xs:attributeGroup>
+</xs:schema>
+<!-- end of seealso.attlist -->
+<!-- end of seeseealso.module -->
+<!-- end of indexterm.content.module -->
+<!-- End of SCons DocBook V4.5-Based extension V1.0 XML information pool module ... -->
+<!-- .............................................................................. -->
diff --git a/doc/xsd/htmltblx.xsd b/doc/xsd/htmltblx.xsd
new file mode 100644
index 0000000..9f82a02
--- /dev/null
+++ b/doc/xsd/htmltblx.xsd
@@ -0,0 +1,431 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- ...................................................................... -->
+<!-- SCons DocBook V4.5-Based extension V1.0 XML HTML Table Module ........ -->
+<!-- File htmltblx.xsd .................................................... -->
+<!-- Copyright (c) 2001-7,2010,2011,2012 The SCons Foundation
+
+     Permission is hereby granted, free of charge, to any person obtaining
+     a copy of this software and associated documentation files (the
+     "Software"), to deal in the Software without restriction, including
+     without limitation the rights to use, copy, modify, merge, publish,
+     distribute, sublicense, and/or sell copies of the Software, and to
+     permit persons to whom the Software is furnished to do so, subject to
+     the following conditions:
+
+     The above copyright notice and this permission notice shall be included
+     in all copies or substantial portions of the Software.
+
+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+     KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+     LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+     This DTD extension is based on the DocBook XML HTML Table
+     Module V4.5 with:
+
+        Copyright 2003-2006 ArborText, Inc., Norman Walsh, Sun Microsystems,
+        Inc., and the Organization for the Advancement of Structured Information
+        Standards (OASIS).
+  
+        $Id: htmltblx.mod 6340 2006-10-03 13:23:24Z nwalsh $
+
+     Please direct all questions, bug reports, or suggestions for
+     changes to the docbook@lists.oasis-open.org mailing list. For more
+     information, see http://www.oasis-open.org/docbook/.
+     For the modified SCons extension files
+     
+        scons.xsd, dbpoolx.xsd, 
+
+     you can write to its developer mailing list. Check out 
+     http://www.scons.org/ and http://www.scons.org/lists.php.
+ 
+-->
+<!-- ...................................................................... -->
+<!--
+  This module contains the definitions for elements that are
+  isomorphic to the HTML elements. One could argue we should
+  instead have based ourselves on the XHTML Table Module, but the
+  HTML one is more like what browsers are likely to accept today
+  and users are likely to use.
+  
+  This module has been developed for use with the DocBook V4.5
+  "union table model" in which elements and attlists common to both
+  models are defined (as the union) in the CALS table module by
+  setting various parameter entities appropriately in this file.
+  
+  In DTD driver files referring to this module, please use an entity
+  declaration that uses the public identifier shown below:
+  
+  <!ENTITY % htmltbl PUBLIC
+  "-//OASIS//ELEMENTS DocBook XML HTML Tables V4.5//EN"
+  "htmltblx.mod">
+  %htmltbl;
+  
+  See the documentation for detailed information on the parameter
+  entity and module scheme used in DocBook, customizing DocBook and
+  planning for interchange, and changes made since the last release
+  of DocBook.
+-->
+<!-- ======================= XHTML Tables ======================================= -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
+  <xs:attributeGroup name="html.coreattrs">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attribute name="class"/>
+    <xs:attribute name="style"/>
+    <xs:attribute name="title"/>
+  </xs:attributeGroup>
+  <!-- Does not contain lang or dir because they are in %common.attribs -->
+  <xs:attributeGroup name="i18n">
+    <xs:attribute ref="xml:lang"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="events">
+    <xs:attribute name="onclick"/>
+    <xs:attribute name="ondblclick"/>
+    <xs:attribute name="onmousedown"/>
+    <xs:attribute name="onmouseup"/>
+    <xs:attribute name="onmouseover"/>
+    <xs:attribute name="onmousemove"/>
+    <xs:attribute name="onmouseout"/>
+    <xs:attribute name="onkeypress"/>
+    <xs:attribute name="onkeydown"/>
+    <xs:attribute name="onkeyup"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="attrs">
+    <xs:attributeGroup ref="html.coreattrs"/>
+    <xs:attributeGroup ref="i18n"/>
+    <xs:attributeGroup ref="events"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="cellhalign">
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="center"/>
+          <xs:enumeration value="right"/>
+          <xs:enumeration value="justify"/>
+          <xs:enumeration value="char"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="char"/>
+    <xs:attribute name="charoff"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="cellvalign">
+    <xs:attribute name="valign">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="top"/>
+          <xs:enumeration value="middle"/>
+          <xs:enumeration value="bottom"/>
+          <xs:enumeration value="baseline"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+  </xs:attributeGroup>
+  <!-- doc:A group of columns in an HTML table. -->
+  <xs:element name="colgroup">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="col"/>
+      </xs:sequence>
+      <xs:attributeGroup ref="colgroup.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- doc:Specifications for a column in an HTML table. -->
+  <xs:element name="col">
+    <xs:complexType>
+      <xs:attributeGroup ref="col.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- doc:A row in an HTML table. -->
+  <xs:element name="tr">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="th"/>
+        <xs:element ref="td"/>
+      </xs:choice>
+      <xs:attributeGroup ref="tr.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- doc:A table header entry in an HTML table. -->
+  <xs:element name="th">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:group ref="tabentry.mix"/>
+        <xs:element ref="table"/>
+        <xs:element ref="informaltable"/>
+      </xs:choice>
+      <xs:attributeGroup ref="th.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <!-- doc:A table ntry in an HTML table. -->
+  <xs:element name="td">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:group ref="para.char.mix"/>
+        <xs:group ref="tabentry.mix"/>
+        <xs:element ref="table"/>
+        <xs:element ref="informaltable"/>
+      </xs:choice>
+      <xs:attributeGroup ref="td.attlist"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:attributeGroup name="colgroup.attlist">
+    <xs:attributeGroup ref="attrs"/>
+    <xs:attribute name="span" default="1"/>
+    <xs:attribute name="width"/>
+    <xs:attributeGroup ref="cellhalign"/>
+    <xs:attributeGroup ref="cellvalign"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="col.attlist">
+    <xs:attributeGroup ref="attrs"/>
+    <xs:attribute name="span" default="1"/>
+    <xs:attribute name="width"/>
+    <xs:attributeGroup ref="cellhalign"/>
+    <xs:attributeGroup ref="cellvalign"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="tr.attlist">
+    <xs:attributeGroup ref="attrs"/>
+    <xs:attributeGroup ref="cellhalign"/>
+    <xs:attributeGroup ref="cellvalign"/>
+    <xs:attribute name="bgcolor"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="th.attlist">
+    <xs:attributeGroup ref="attrs"/>
+    <xs:attribute name="abbr"/>
+    <xs:attribute name="axis"/>
+    <xs:attribute name="headers" type="xs:IDREFS"/>
+    <xs:attribute name="scope">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="row"/>
+          <xs:enumeration value="col"/>
+          <xs:enumeration value="rowgroup"/>
+          <xs:enumeration value="colgroup"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="rowspan" default="1"/>
+    <xs:attribute name="colspan" default="1"/>
+    <xs:attributeGroup ref="cellhalign"/>
+    <xs:attributeGroup ref="cellvalign"/>
+    <xs:attribute name="nowrap">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="nowrap"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="bgcolor"/>
+    <xs:attribute name="width"/>
+    <xs:attribute name="height"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="td.attlist">
+    <xs:attributeGroup ref="attrs"/>
+    <xs:attribute name="abbr"/>
+    <xs:attribute name="axis"/>
+    <xs:attribute name="headers" type="xs:IDREFS"/>
+    <xs:attribute name="scope">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="row"/>
+          <xs:enumeration value="col"/>
+          <xs:enumeration value="rowgroup"/>
+          <xs:enumeration value="colgroup"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="rowspan" default="1"/>
+    <xs:attribute name="colspan" default="1"/>
+    <xs:attributeGroup ref="cellhalign"/>
+    <xs:attributeGroup ref="cellvalign"/>
+    <xs:attribute name="nowrap">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="nowrap"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="bgcolor"/>
+    <xs:attribute name="width"/>
+    <xs:attribute name="height"/>
+  </xs:attributeGroup>
+  <!-- ====================================================== -->
+  <!--
+    Set up to read in the CALS model configured to
+    merge with the XHTML table model
+  -->
+  <!-- ====================================================== -->
+  <xs:attributeGroup name="tables.role.attrib">
+    <xs:attributeGroup ref="role.attrib"/>
+  </xs:attributeGroup>
+  <!-- Add label and role attributes to table and informaltable -->
+  <xs:attributeGroup name="bodyatt">
+    <xs:attribute name="floatstyle"/>
+    <xs:attribute name="rowheader">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="firstcol"/>
+          <xs:enumeration value="norowheader"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attributeGroup ref="label.attrib"/>
+  </xs:attributeGroup>
+  <!--
+    Add common attributes to Table, TGroup, TBody, THead, TFoot, Row, 
+    EntryTbl, and Entry (and InformalTable element).
+  -->
+  <xs:attributeGroup name="secur">
+    <xs:attributeGroup ref="common.attrib"/>
+    <xs:attribute name="class"/>
+    <xs:attribute name="style"/>
+    <xs:attribute name="title"/>
+    <xs:attributeGroup ref="i18n"/>
+    <xs:attributeGroup ref="events"/>
+    <xs:attributeGroup ref="tables.role.attrib"/>
+  </xs:attributeGroup>
+  <xs:attributeGroup name="common.table.attribs">
+    <xs:attributeGroup ref="bodyatt"/>
+    <xs:attributeGroup ref="secur"/>
+  </xs:attributeGroup>
+  <!-- Content model for Table (that also allows HTML tables) -->
+  <xs:complexType name="tbl.table.mdl">
+    <xs:choice>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="blockinfo"/>
+        <xs:group ref="formalobject.title.content"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="ndxterm.class"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="textobject"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="graphic"/>
+          <xs:element maxOccurs="unbounded" ref="mediaobject"/>
+          <xs:element maxOccurs="unbounded" ref="tgroup"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:sequence>
+        <xs:element ref="caption"/>
+        <xs:choice>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="col"/>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="colgroup"/>
+        </xs:choice>
+        <xs:element minOccurs="0" ref="thead"/>
+        <xs:element minOccurs="0" ref="tfoot"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="tbody"/>
+          <xs:element maxOccurs="unbounded" ref="tr"/>
+        </xs:choice>
+      </xs:sequence>
+    </xs:choice>
+  </xs:complexType>
+  <xs:group name="informal.tbl.table.mdl">
+    <xs:choice>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="textobject"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="graphic"/>
+          <xs:element maxOccurs="unbounded" ref="mediaobject"/>
+          <xs:element maxOccurs="unbounded" ref="tgroup"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:sequence>
+        <xs:choice>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="col"/>
+          <xs:element minOccurs="0" maxOccurs="unbounded" ref="colgroup"/>
+        </xs:choice>
+        <xs:element minOccurs="0" ref="thead"/>
+        <xs:element minOccurs="0" ref="tfoot"/>
+        <xs:choice>
+          <xs:element maxOccurs="unbounded" ref="tbody"/>
+          <xs:element maxOccurs="unbounded" ref="tr"/>
+        </xs:choice>
+      </xs:sequence>
+    </xs:choice>
+  </xs:group>
+  <!-- Attributes for Table (including HTML ones) -->
+  <!-- N.B. rules = (none | groups | rows | cols | all) but it can't be spec'd -->
+  <!-- that way because 'all' already occurs in a different enumeration in -->
+  <!-- CALS tables (frame). -->
+  <xs:attributeGroup name="tbl.table.att">
+    <xs:attribute name="tabstyle"/>
+    <xs:attribute name="tocentry" type="yesorno.attvals"/>
+    <xs:attribute name="shortentry" type="yesorno.attvals"/>
+    <xs:attribute name="orient">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="port"/>
+          <xs:enumeration value="land"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="pgwide" type="yesorno.attvals"/>
+    <xs:attribute name="summary"/>
+    <xs:attribute name="width"/>
+    <xs:attribute name="border"/>
+    <xs:attribute name="rules"/>
+    <xs:attribute name="cellspacing"/>
+    <xs:attribute name="cellpadding"/>
+    <xs:attribute name="align">
+      <xs:simpleType>
+        <xs:restriction base="xs:token">
+          <xs:enumeration value="left"/>
+          <xs:enumeration value="center"/>
+          <xs:enumeration value="right"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="bgcolor"/>
+  </xs:attributeGroup>
+  <xs:simpleType name="tbl.frame.attval">
+    <xs:restriction base="xs:token">
+      <xs:enumeration value="void"/>
+      <xs:enumeration value="above"/>
+      <xs:enumeration value="below"/>
+      <xs:enumeration value="hsides"/>
+      <xs:enumeration value="lhs"/>
+      <xs:enumeration value="rhs"/>
+      <xs:enumeration value="vsides"/>
+      <xs:enumeration value="box"/>
+      <xs:enumeration value="border"/>
+      <xs:enumeration value="top"/>
+      <xs:enumeration value="bottom"/>
+      <xs:enumeration value="topbot"/>
+      <xs:enumeration value="all"/>
+      <xs:enumeration value="sides"/>
+      <xs:enumeration value="none"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <!-- Allow either objects or inlines; beware of REs between elements. -->
+  <xs:group name="tbl.entry.mdl">
+    <xs:choice>
+      <xs:group ref="para.char.mix"/>
+      <xs:group ref="tabentry.mix"/>
+    </xs:choice>
+  </xs:group>
+  <!--
+    thead, tfoot, and tbody are defined in both table models,
+    so we set up parameter entities to define union models for them
+  -->
+  <xs:complexType name="tbl.hdft.mdl">
+    <xs:choice>
+      <xs:element maxOccurs="unbounded" ref="tr"/>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="colspec"/>
+        <xs:element maxOccurs="unbounded" ref="row"/>
+      </xs:sequence>
+    </xs:choice>
+  </xs:complexType>
+  <xs:complexType name="tbl.tbody.mdl">
+    <xs:choice>
+      <xs:element maxOccurs="unbounded" ref="tr"/>
+      <xs:element maxOccurs="unbounded" ref="row"/>
+    </xs:choice>
+  </xs:complexType>
+</xs:schema>
+<!-- End of SCons DocBook V4.5-Based extension V1.0 XML HTML Table Module . -->
+<!-- ...................................................................... -->
diff --git a/doc/xsd/scons.xsd b/doc/xsd/scons.xsd
new file mode 100644
index 0000000..481c2d4
--- /dev/null
+++ b/doc/xsd/scons.xsd
@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- ...................................................................... -->
+<!-- SCons DocBook V4.5-Based extension V1.0 .............................. -->
+<!-- File scons.xsd ....................................................... -->
+<!-- Copyright (c) 2001-7,2010,2011,2012 The SCons Foundation
+
+     Permission is hereby granted, free of charge, to any person obtaining
+     a copy of this software and associated documentation files (the
+     "Software"), to deal in the Software without restriction, including
+     without limitation the rights to use, copy, modify, merge, publish,
+     distribute, sublicense, and/or sell copies of the Software, and to
+     permit persons to whom the Software is furnished to do so, subject to
+     the following conditions:
+
+     The above copyright notice and this permission notice shall be included
+     in all copies or substantial portions of the Software.
+
+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+     KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+     LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+     This DTD extension is based on the DocBook V4.5 DTD with:
+
+        Copyright 1992-2006 HaL Computer Systems, Inc.,
+        O'Reilly & Associates, Inc., ArborText, Inc., Fujitsu Software
+        Corporation, Norman Walsh, Sun Microsystems, Inc., and the
+        Organization for the Advancement of Structured Information
+        Standards (OASIS).
+  
+        See also http://docbook.org/specs/
+  
+        $Id: docbookx.dtd 6340 2006-10-03 13:23:24Z nwalsh $
+  
+  
+     Please direct all questions, bug reports, or suggestions for
+     changes to the docbook@lists.oasis-open.org mailing list. For more
+     information, see http://www.oasis-open.org/docbook/.
+     For the modified SCons extension files
+     
+        scons.xsd, dbpoolx.xsd, 
+
+     you can write to its developer mailing list. Check out 
+     http://www.scons.org/ and http://www.scons.org/lists.php.
+ 
+-->
+<!-- ...................................................................... -->
+<!--
+  This is the driver file for V4.5 of the DocBook DTD.
+  Please use the following formal public identifier to identify it:
+  
+  "-//OASIS//DTD DocBook XML V4.5//EN"
+  
+  For example, if your document's top-level element is Book, and
+  you are using DocBook directly, use the FPI in the DOCTYPE
+  declaration:
+  
+  <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+                 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"
+                 [...]>
+  
+  Or, if you have a higher-level driver file that customizes DocBook,
+  use the FPI in the parameter entity declaration:
+  
+  <!ENTITY % DocBookDTD PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+             "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
+  %DocBookDTD;
+  
+  See the documentation for detailed information on the parameter
+  entity and module scheme used in DocBook, customizing DocBook and
+  planning for interchange, and changes made since the last release
+  of DocBook.
+-->
+<!-- ...................................................................... -->
+<!-- Enable SGML features ................................................. -->
+<!-- ...................................................................... -->
+<!-- Notation declarations ................................................ -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           targetNamespace="http://www.scons.org/dbxsd/v1.0" 
+           elementFormDefault="qualified">
+  <xs:include schemaLocation="dbnotnx.xsd"/>
+  <xs:include schemaLocation="dbpoolx.xsd"/>
+  <xs:include schemaLocation="dbhierx.xsd"/>
+  <!-- ...................................................................... -->
+  <!-- ISO character entity sets ............................................ -->
+  <!-- euro sign, U+20AC NEW -->
+  <!-- ...................................................................... -->
+  <!-- DTD modules .......................................................... -->
+  <!-- Information pool .............. -->
+  <!-- Redeclaration placeholder ..... -->
+  <!-- Document hierarchy ............ -->
+</xs:schema>
+<!-- ...................................................................... -->
+<!-- Other general entities ............................................... -->
+<!-- End of SCons DocBook V4.5-Based extension V1.0 ....................... -->
+<!-- ...................................................................... -->
diff --git a/doc/xsd/xml.xsd b/doc/xsd/xml.xsd
new file mode 100644
index 0000000..600f399
--- /dev/null
+++ b/doc/xsd/xml.xsd
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 
+           elementFormDefault="qualified"
+           targetNamespace="http://www.w3.org/XML/1998/namespace">
+  <xs:import schemaLocation="scons.xsd"/>
+  <xs:attribute name="base"/>
+  <xs:attribute name="space">
+    <xs:simpleType>
+      <xs:restriction base="xs:token">
+        <xs:enumeration value="preserve"/>
+      </xs:restriction>
+    </xs:simpleType>
+  </xs:attribute>
+  <xs:attribute name="lang" type="xs:NMTOKEN"/>
+</xs:schema>
-- 
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