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Posted to commits@logging.apache.org by pk...@apache.org on 2023/12/08 13:48:44 UTC

(logging-log4j-tools) 01/03: Add test for the generated schema

This is an automated email from the ASF dual-hosted git repository.

pkarwasz pushed a commit to branch doc-reference
in repository https://gitbox.apache.org/repos/asf/logging-log4j-tools.git

commit 2b4fcdf17738837a26f9d00298c4d12fa6f1314c
Author: Piotr P. Karwasz <pi...@karwasz.org>
AuthorDate: Fri Dec 8 13:59:39 2023 +0100

    Add test for the generated schema
---
 log4j-docgen/pom.xml                               |   11 +
 .../docgen/internal/DefaultSchemaGenerator.java    |   31 +-
 .../logging/log4j/docgen/SchemaGeneratorTest.java  |   35 +-
 .../log4j/plugins.xml}                             |   38 +
 log4j-docgen/src/test/resources/log4j-plugins.xml  |  150 --
 log4j-docgen/src/test/resources/log4j.xsd          |  265 ---
 log4j-docgen/src/test/resources/xsd/XMLSchema.xsd  | 2363 ++++++++++++++++++++
 .../{expected-log4j.xsd => xsd/log4j.xsd}          |  169 +-
 log4j-docgen/src/test/resources/xsd/xml.xsd        |  286 +++
 9 files changed, 2910 insertions(+), 438 deletions(-)

diff --git a/log4j-docgen/pom.xml b/log4j-docgen/pom.xml
index c382738..25a7ced 100644
--- a/log4j-docgen/pom.xml
+++ b/log4j-docgen/pom.xml
@@ -64,11 +64,22 @@
       <artifactId>log4j-plugin-processor</artifactId>
       <version>3.0.0-SNAPSHOT</version>
     </dependency>
+    <dependency>
+      <groupId>org.assertj</groupId>
+      <artifactId>assertj-core</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter-api</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.xmlunit</groupId>
+      <artifactId>xmlunit-assertj3</artifactId>
+      <version>2.9.1</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <repositories>
diff --git a/log4j-docgen/src/main/java/org/apache/logging/log4j/docgen/internal/DefaultSchemaGenerator.java b/log4j-docgen/src/main/java/org/apache/logging/log4j/docgen/internal/DefaultSchemaGenerator.java
index f29280c..3a099ba 100644
--- a/log4j-docgen/src/main/java/org/apache/logging/log4j/docgen/internal/DefaultSchemaGenerator.java
+++ b/log4j-docgen/src/main/java/org/apache/logging/log4j/docgen/internal/DefaultSchemaGenerator.java
@@ -16,7 +16,6 @@
  */
 package org.apache.logging.log4j.docgen.internal;
 
-import com.sun.xml.txw2.output.IndentingXMLStreamWriter;
 import java.io.IOException;
 import java.util.Collection;
 import java.util.Collections;
@@ -28,6 +27,7 @@ import java.util.Optional;
 import java.util.Set;
 import java.util.TreeMap;
 import java.util.TreeSet;
+import javax.xml.XMLConstants;
 import javax.xml.stream.XMLStreamException;
 import javax.xml.stream.XMLStreamWriter;
 import org.apache.logging.log4j.docgen.SchemaGenerator;
@@ -45,7 +45,7 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
     private static final String PLUGIN_NAMESPACE = "Core";
     private static final String LOG4J_PREFIX = "log4j";
     private static final String LOG4J_NAMESPACE = "http://logging.apache.org/log4j/2.0/config";
-    private static final String XSD_NAMESPACE = "http://www.w3.org/2001/XMLSchema";
+    private static final String XSD_NAMESPACE = XMLConstants.W3C_XML_SCHEMA_NS_URI;
     private static final String MULTIPLICITY_UNBOUNDED = "*";
 
     @Override
@@ -56,7 +56,7 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
             final Set<PluginBundle> extendedBundles = new HashSet<>(bundles);
             extendedBundles.add(configurationBundle);
             final TypeLookup lookup = new TypeLookup(extendedBundles);
-            writeSchema(lookup, new IndentingXMLStreamWriter(writer));
+            writeSchema(lookup, writer);
         } catch (IOException e) {
             throw new XMLStreamException(e);
         }
@@ -100,6 +100,8 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
         writer.writeStartElement(XSD_NAMESPACE, "complexType");
         writer.writeAttribute("name", entry.getClassName());
 
+        writeDocumentation(entry.getDescription(), writer);
+
         final boolean hasSimpleContent = entry.getElements().isEmpty();
 
         if (!hasSimpleContent) {
@@ -132,8 +134,10 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
             writeMultiplicity(element.isRequired(), element.getMultiplicity(), writer);
             writeDocumentation(element.getDescription(), writer);
             writer.writeEndElement();
-        } else
-            for (final String key : entry.getKeys()) {
+        } else {
+            final Set<String> actualKeys = new TreeSet<>(entry.getKeys());
+            actualKeys.add(entry.getName());
+            for (final String key : actualKeys) {
                 writer.writeStartElement(XSD_NAMESPACE, "element");
                 writer.writeAttribute("name", key);
                 writer.writeAttribute("type", xmlType);
@@ -141,6 +145,7 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
                 writeDocumentation(element.getDescription(), writer);
                 writer.writeEndElement();
             }
+        }
     }
 
     private void writeMultiplicity(final boolean required, final String multiplicity, final XMLStreamWriter writer)
@@ -216,7 +221,7 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
         writer.writeStartElement(XSD_NAMESPACE, "choice");
 
         for (final PluginEntry entry : entries) {
-            final Set<String> actualKeys = new HashSet<>(entry.getKeys());
+            final Set<String> actualKeys = new TreeSet<>(entry.getKeys());
             actualKeys.add(entry.getName());
             for (final String key : actualKeys) {
                 writer.writeEmptyElement(XSD_NAMESPACE, "element");
@@ -233,6 +238,8 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
         writer.writeStartElement(XSD_NAMESPACE, "simpleType");
         writer.writeAttribute("name", type.getClassName());
 
+        writeDocumentation(type.getDescription(), writer);
+
         writer.writeStartElement(XSD_NAMESPACE, "restriction");
         writer.writeAttribute("base", "string");
 
@@ -267,7 +274,8 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
                     if (PLUGIN_NAMESPACE.equals(entry.getNamespace())) {
                         pluginsByName.put(entry.getClassName(), entry);
                         entry.getSupertypes().forEach(type -> pluginsByGroup
-                                .computeIfAbsent(type, ignored -> new HashSet<>())
+                                .computeIfAbsent(
+                                        type, ignored -> new TreeSet<>(Comparator.comparing(PluginEntry::getName)))
                                 .add(entry));
                     }
                 });
@@ -322,15 +330,18 @@ public class DefaultSchemaGenerator implements SchemaGenerator {
                 return LOG4J_PREFIX + ":" + javaType;
             }
             if (!simple) {
-                final Set<PluginEntry> group = pluginsByGroup.get(javaType);
                 final PluginEntry entry = pluginsByName.get(javaType);
-                if (group == null && entry != null && entry.getKeys().isEmpty()) {
+                if (pluginsByGroup.get(javaType) == null
+                        && entry != null
+                        && entry.getKeys().isEmpty()) {
                     return LOG4J_PREFIX + ":" + javaType;
                 }
                 requiredGroups.add(javaType);
                 // Add also the base class to the group
                 if (entry != null) {
-                    group.add(entry);
+                    pluginsByGroup
+                            .computeIfAbsent(javaType, ignored -> new HashSet<>())
+                            .add(entry);
                 }
                 return LOG4J_PREFIX + ":" + javaType + ".group";
             }
diff --git a/log4j-docgen/src/test/java/org/apache/logging/log4j/docgen/SchemaGeneratorTest.java b/log4j-docgen/src/test/java/org/apache/logging/log4j/docgen/SchemaGeneratorTest.java
index 967150a..ce09349 100644
--- a/log4j-docgen/src/test/java/org/apache/logging/log4j/docgen/SchemaGeneratorTest.java
+++ b/log4j-docgen/src/test/java/org/apache/logging/log4j/docgen/SchemaGeneratorTest.java
@@ -16,30 +16,51 @@
  */
 package org.apache.logging.log4j.docgen;
 
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+
 import java.io.IOException;
+import java.io.StringWriter;
+import java.net.URL;
 import java.nio.file.Files;
-import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Collections;
 import javax.xml.stream.XMLOutputFactory;
 import javax.xml.stream.XMLStreamException;
 import javax.xml.stream.XMLStreamWriter;
+import javax.xml.transform.Source;
 import org.apache.logging.log4j.docgen.internal.DefaultSchemaGenerator;
 import org.apache.logging.log4j.docgen.model.PluginBundle;
 import org.apache.logging.log4j.docgen.model.io.stax.PluginBundleStaxReader;
 import org.junit.jupiter.api.Test;
+import org.xmlunit.assertj3.XmlAssert;
+import org.xmlunit.builder.Input;
 
 public class SchemaGeneratorTest {
 
     @Test
-    void schemaGeneration() throws XMLStreamException, IOException {
+    void schemaGeneration() throws Exception {
+        final URL xmlSchemaLocation = SchemaGenerator.class.getResource("/xsd/XMLSchema.xsd");
+        final Source xmlSchema = Input.fromURL(xmlSchemaLocation).build();
+        final URL expectedSchema = SchemaGenerator.class.getResource("/xsd/log4j.xsd");
+        final String actualSchema = assertDoesNotThrow(() -> generateSchema());
+        XmlAssert.assertThat(actualSchema)
+                .isValidAgainst(xmlSchema)
+                .and(expectedSchema)
+                .ignoreComments()
+                .ignoreWhitespace()
+                .areIdentical();
+    }
+
+    private static String generateSchema() throws XMLStreamException, IOException {
         final PluginBundleStaxReader reader = new PluginBundleStaxReader();
-        final PluginBundle bundle = reader.read(SchemaGeneratorTest.class.getResourceAsStream("/test-plugins.xml"));
+        final PluginBundle bundle =
+                reader.read(SchemaGeneratorTest.class.getResourceAsStream("/META-INF/log4j/plugins.xml"));
         final SchemaGenerator generator = new DefaultSchemaGenerator();
         final XMLOutputFactory factory = XMLOutputFactory.newInstance();
-        final Path actualSchema = Paths.get("target/test-classes/actual-log4j.xsd");
-        final XMLStreamWriter writer = factory.createXMLStreamWriter(Files.newOutputStream(actualSchema));
-        generator.generateSchema(Collections.singleton(bundle), writer);
-        writer.close();
+        final StringWriter writer = new StringWriter();
+        final XMLStreamWriter xmlWriter = factory.createXMLStreamWriter(writer);
+        generator.generateSchema(Collections.singleton(bundle), xmlWriter);
+        xmlWriter.close();
+        return writer.toString();
     }
 }
diff --git a/log4j-docgen/src/test/resources/test-plugins.xml b/log4j-docgen/src/test/resources/META-INF/log4j/plugins.xml
similarity index 87%
rename from log4j-docgen/src/test/resources/test-plugins.xml
rename to log4j-docgen/src/test/resources/META-INF/log4j/plugins.xml
index e35f522..b70267e 100644
--- a/log4j-docgen/src/test/resources/test-plugins.xml
+++ b/log4j-docgen/src/test/resources/META-INF/log4j/plugins.xml
@@ -205,6 +205,22 @@
         <!-- Additional plugins -->
         <plugin name="AppenderRef" namespace="Core" className="org.apache.logging.log4j.core.config.AppenderRef">
             <description>Reference to an appender defined in the `Appenders` section.</description>
+            <keys>
+                <key>appender-ref</key>
+            </keys>
+            <attributes>
+                <attribute name="ref" required="true">
+                    <description>The name of an appender.</description>
+                </attribute>
+                <attribute name="level" type="org.apache.logging.log4j.Level">
+                    <description>The level to filter against.</description>
+                </attribute>
+            </attributes>
+            <elements>
+                <element type="org.apache.logging.log4j.core.Filter">
+                    <description>The filter to use.</description>
+                </element>
+            </elements>
         </plugin>
 
         <plugin name="BurstFilter" namespace="Core" className="org.apache.logging.log4j.core.filter.BurstFilter">
@@ -246,5 +262,27 @@
                 </attribute>
             </attributes>
         </plugin>
+
+        <plugin name="PatternLayout" namespace="Core" className="org.apache.logging.log4j.core.layout.PatternLayout">
+            <description>
+                A flexible layout configurable with pattern string.
+
+                The goal of this class is to {@link org.apache.logging.log4j.core.Layout#toByteArray format} a
+                {@link LogEvent} and return the results.
+                The format of the result depends on the _conversion pattern_.
+
+                The conversion pattern is closely related to the conversion pattern of the printf function in C.
+                A conversion pattern is composed of literal text and format control expressions called _conversion
+                specifiers_.
+            </description>
+            <supertypes>
+                <supertype>org.apache.logging.log4j.core.Layout</supertype>
+            </supertypes>
+            <attributes>
+                <attribute name="pattern" defaultValue="%m%n">
+                    <description>The pattern to use to format log events.</description>
+                </attribute>
+            </attributes>
+        </plugin>
     </plugins>
 </pluginBundle>
diff --git a/log4j-docgen/src/test/resources/log4j-plugins.xml b/log4j-docgen/src/test/resources/log4j-plugins.xml
deleted file mode 100644
index ef2ce75..0000000
--- a/log4j-docgen/src/test/resources/log4j-plugins.xml
+++ /dev/null
@@ -1,150 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-  ~ Licensed to the Apache Software Foundation (ASF) under one or more
-  ~ contributor license agreements.  See the NOTICE file distributed with
-  ~ this work for additional information regarding copyright ownership.
-  ~ The ASF licenses this file to you under the Apache License, Version 2.0
-  ~ (the "License"); you may not use this file except in compliance with
-  ~ the License.  You may obtain a copy of the License at
-  ~
-  ~      http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<model xmlns="http://codehaus-plexus.github.io/MODELLO/1.8.0"
-       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-       xsi:schemaLocation="http://codehaus-plexus.github.io/MODELLO/1.8.0 https://codehaus-plexus.github.io/modello/xsd/modello-1.8.0.xsd"
-        xml.namespace="http://logging.apache.org/log4j/2.x/config">
-    <id>log4j-core</id>
-    <name>Log4j Core Plugins</name>
-
-    <classes>
-        <!-- Interfaces -->
-        <class>
-            <name>org.apache.logging.log4j.core.Filter</name>
-        </class>
-        <class>
-            <name>org.apache.logging.log4j.core.Appender</name>
-        </class>
-        <class>
-            <name>org.apache.logging.log4j.core.Layout</name>
-        </class>
-        <class xml.tagName="Appenders" rootElement="true" xsd.compositor="sequence">
-            <name>org.apache.logging.log4j.core.config.AppendersPlugin</name>
-            <fields>
-                <field>
-                    <name>appenders</name>
-                    <association xml.itemsStyle="flat">
-                        <type>org.apache.logging.log4j.core.appender.AbstractAppender</type>
-                        <multiplicity>*</multiplicity>
-                    </association>
-                </field>
-            </fields>
-        </class>
-        <class java.abstract="true">
-            <name>org.apache.logging.log4j.core.filter.AbstractFilterable</name>
-            <fields>
-                <field>
-                    <name>filter</name>
-                    <association>
-                        <type>org.apache.logging.log4j.core.Filter</type>
-                        <multiplicity>1</multiplicity>
-                    </association>
-                    <description>Filters the log events in this component.</description>
-                </field>
-                <field>
-                    <name>propertyArray</name>
-                    <association>
-                        <type>org.apache.logging.log4j.core.config.Property</type>
-                        <multiplicity>*</multiplicity>
-                    </association>
-                    <description>Additional properties to add to events for this component.</description>
-                </field>
-            </fields>
-        </class>
-        <class java.abstract="true">
-            <name>org.apache.logging.log4j.core.appender.AbstractAppender</name>
-            <superClass>org.apache.logging.log4j.core.filter.AbstractFilterable</superClass>
-            <interfaces>
-                <interface>org.apache.logging.log4j.core.Appender</interface>
-            </interfaces>
-            <fields>
-                <field>
-                    <name>ignoreExceptions</name>
-                    <type>boolean</type>
-                    <defaultValue>true</defaultValue>
-                    <description>If set to `false` logging exceptions will be forwarded to the caller.</description>
-                </field>
-                <field>
-                    <name>layout</name>
-                    <association>
-                        <type>org.apache.logging.log4j.core.Layout</type>
-                        <multiplicity>1</multiplicity>
-                    </association>
-                    <description>Specifies the layout used to format log events.</description>
-                </field>
-                <field>
-                    <name>name</name>
-                    <type>String</type>
-                    <required>true</required>
-                    <description>Name used to reference this appender. Must be unique</description>
-                </field>
-            </fields>
-        </class>
-        <class java.abstract="true">
-            <name>org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender</name>
-            <superClass>org.apache.logging.log4j.core.appender.AbstractAppender</superClass>
-            <fields>
-                <field>
-                    <name>bufferedIo</name>
-                    <type>boolean</type>
-                    <defaultValue>true</defaultValue>
-                    <description>If set to `true`, I/O is buffered.</description>
-                </field>
-            </fields>
-        </class>
-        <class xml.tagName="Console">
-            <name>org.apache.logging.log4j.core.ConsoleAppender</name>
-            <superClass>org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender</superClass>
-            <description>
-                Appends log events to `System.out` or `System.err` using a layout specified by the user.
-            </description>
-            <interfaces>
-                <interface>org.apache.logging.log4j.core.Appender</interface>
-                <interface>org.apache.logging.log4j.core.impl.LocationAware</interface>
-            </interfaces>
-            <fields>
-                <field>
-                    <name>immediate</name>
-                    <type>boolean</type>
-                    <description>If se to `true` buffers are flushed at each </description>
-                    <defaultValue>false</defaultValue>
-                </field>
-            </fields>
-        </class>
-
-        <!-- Sub-components -->
-        <class xml.tagName="Property">
-            <name>org.apache.logging.log4j.core.config.Property</name>
-            <description>
-                Represents a key/value pair in the configuration.
-            </description>
-            <fields>
-                <field>
-                    <name>key</name>
-                    <type>String</type>
-                    <description>Key</description>
-                </field>
-                <field>
-                    <name>value</name>
-                    <type>String</type>
-                    <description>Value</description>
-                </field>
-            </fields>
-        </class>
-    </classes>
-</model>
diff --git a/log4j-docgen/src/test/resources/log4j.xsd b/log4j-docgen/src/test/resources/log4j.xsd
deleted file mode 100644
index 6de5b85..0000000
--- a/log4j-docgen/src/test/resources/log4j.xsd
+++ /dev/null
@@ -1,265 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements.  See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You under the Apache License, Version 2.0
- (the "License"); you may not use this file except in compliance with
- the License.  You may obtain a copy of the License at
-
-      http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-
--->
-<schema xmlns="http://www.w3.org/2001/XMLSchema"
-        xmlns:log4j="http://logging.apache.org/log4j/2.0/config"
-        xmlns:html="http://www.w3.org/1999/xhtml"
-        targetNamespace="http://logging.apache.org/log4j/2.0/config"
-        elementFormDefault="qualified">
-
-    <element name="Configuration">
-        <annotation>
-            <documentation>
-                <html:p>A Log4j 2.x configuration contains many components, two of them <html:code>Appenders</html:code>
-                and <html:code>Loggers</html:code> are required.</html:p>
-            </documentation>
-        </annotation>
-        <complexType>
-            <sequence>
-                <element name="Appenders" type="log4j:org.apache.logging.log4j.core.config.AppendersPlugin">
-                    <annotation>
-                        <documentation>
-                            Container for a list of appenders.
-                        </documentation>
-                    </annotation>
-                </element>
-            </sequence>
-        </complexType>
-    </element>
-
-    <!-- Plugins with the same interface -->
-
-    <group name="org.apache.logging.log4j.core.Appender">
-        <choice>
-            <element name="Console" type="log4j:org.apache.logging.log4j.core.appender.ConsoleAppender"/>
-        </choice>
-    </group>
-
-    <group name="org.apache.logging.log4j.core.Filter">
-        <choice>
-            <element name="ThresholdFilter" type="log4j:org.apache.logging.log4j.core.filter.ThresholdFilter"/>
-        </choice>
-    </group>
-
-    <group name="org.apache.logging.log4j.core.Layout">
-        <choice>
-            <element name="PatternLayout" type="log4j:org.apache.logging.log4j.core.layout.PatternLayout"/>
-        </choice>
-    </group>
-
-    <!-- Enums and other simple types -->
-
-    <simpleType name="org.apache.logging.log4j.core.appender.ConsoleAppender.Target">
-        <restriction base="string">
-            <enumeration value="SYSTEM_OUT"/>
-            <enumeration value="SYSTEM_ERR"/>
-        </restriction>
-    </simpleType>
-
-    <simpleType name="org.apache.logging.log4j.core.Filter.Result">
-        <restriction base="string">
-            <enumeration value="ACCEPT"/>
-            <enumeration value="DENY"/>
-            <enumeration value="NEUTRAL"/>
-        </restriction>
-    </simpleType>
-
-    <!-- Plugins -->
-
-    <complexType name="org.apache.logging.log4j.core.config.AppendersPlugin">
-        <sequence>
-            <group ref="log4j:org.apache.logging.log4j.core.Appender" minOccurs="0"/>
-        </sequence>
-    </complexType>
-
-    <complexType name="org.apache.logging.log4j.core.filter.AbstractFilterable">
-        <sequence>
-            <group ref="log4j:org.apache.logging.log4j.core.Filter" minOccurs="0">
-                <annotation>
-                    <documentation>
-                        A filter to apply to the log events processed by this component.
-                    </documentation>
-                </annotation>
-            </group>
-            <element name="Property" type="log4j:org.apache.logging.log4j.core.config.Property" minOccurs="0"
-                     maxOccurs="unbounded">
-                <annotation>
-                    <documentation>
-                        A list of properties to add to the context data of the log event.
-                    </documentation>
-                </annotation>
-            </element>
-        </sequence>
-    </complexType>
-
-    <complexType name="org.apache.logging.log4j.core.appender.AbstractAppender">
-        <complexContent>
-            <extension base="log4j:org.apache.logging.log4j.core.filter.AbstractFilterable">
-                <sequence>
-                    <group ref="log4j:org.apache.logging.log4j.core.Layout" minOccurs="0">
-                        <annotation>
-                            <documentation>
-                                Specifies the way events are converted into strings.
-                            </documentation>
-                        </annotation>
-                    </group>
-                </sequence>
-                <attribute name="ignoreExceptions" type="boolean" default="true"/>
-                <attribute name="name" type="string" use="required">
-                    <annotation>
-                        <documentation>The name of the appender.</documentation>
-                    </annotation>
-                </attribute>
-            </extension>
-        </complexContent>
-    </complexType>
-
-    <complexType name="org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender">
-        <complexContent>
-            <extension base="log4j:org.apache.logging.log4j.core.appender.AbstractAppender">
-                <attribute name="bufferedIo" type="boolean" default="true">
-                    <annotation>
-                        <documentation>If set to `true` the appender will buffer events.
-                            This is incompatible with `immediateFlush`.
-                        </documentation>
-                    </annotation>
-                </attribute>
-                <attribute name="bufferSize" type="int">
-                    <annotation>
-                        <documentation>Size in bytes of the appender's buffer.</documentation>
-                    </annotation>
-                </attribute>
-                <attribute name="immediateFlush" type="boolean" default="true">
-                    <annotation>
-                        <documentation>If set to `true` the output stream will be flushed after each event.
-                        </documentation>
-                    </annotation>
-                </attribute>
-            </extension>
-        </complexContent>
-    </complexType>
-
-    <complexType name="org.apache.logging.log4j.core.appender.ConsoleAppender">
-        <annotation>
-            <documentation>
-                <html:p>Appends log events to <html:code>System.out</html:code> or <html:code>System.err</html:code> using
-                    a layout specified by the user.
-                </html:p>
-            </documentation>
-        </annotation>
-        <complexContent>
-            <extension base="log4j:org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender">
-                <attribute name="target" type="log4j:org.apache.logging.log4j.core.appender.ConsoleAppender.Target"
-                           default="SYSTEM_OUT">
-                    <annotation>
-                        <documentation>Specifies the target of the console appender.</documentation>
-                    </annotation>
-                </attribute>
-                <attribute name="follow" type="boolean" default="false">
-                    <annotation>
-                        <documentation>If set to `true`, the appender follows redirections performed using
-                            `System#setOut()/setErr()`.
-                        </documentation>
-                    </annotation>
-                </attribute>
-                <attribute name="direct" type="boolean" default="false">
-                    <annotation>
-                        <documentation>If set to `true`, the appender uses the `FileDescriptor.out/err` descriptors
-                            directly.
-                        </documentation>
-                    </annotation>
-                </attribute>
-            </extension>
-        </complexContent>
-    </complexType>
-
-    <complexType name="org.apache.logging.log4j.core.filter.AbstractFilter">
-        <attribute name="onMatch" type="log4j:org.apache.logging.log4j.core.Filter.Result" default="NEUTRAL">
-            <annotation>
-                <documentation>The result to return when the filter matches.</documentation>
-            </annotation>
-        </attribute>
-        <attribute name="onMismatch" type="log4j:org.apache.logging.log4j.core.Filter.Result" default="DENY">
-            <annotation>
-                <documentation>The result to return when the filter does not match.</documentation>
-            </annotation>
-        </attribute>
-    </complexType>
-
-    <complexType name="org.apache.logging.log4j.core.filter.ThresholdFilter">
-        <annotation>
-            <documentation>
-                This filter returns the `onMatch` result if the level in the `LogEvent` is the same or more specific
-                than the configured level and the `onMismatch` value otherwise.
-                For example, if the `ThresholdFilter` is configured with Level `ERROR` and the `LogEvent` contains Level
-                `DEBUG` then the `onMismatch` value will be returned since `ERROR` events are more specific than
-                `DEBUG`.
-            </documentation>
-        </annotation>
-        <simpleContent>
-            <extension base="log4j:org.apache.logging.log4j.core.filter.AbstractFilter">
-                <attribute name="level" type="string" default="ERROR">
-                    <annotation>
-                        <documentation>The threshold level.</documentation>
-                    </annotation>
-                </attribute>
-            </extension>
-        </simpleContent>
-    </complexType>
-
-    <complexType name="org.apache.logging.log4j.core.layout.PatternLayout">
-        <annotation>
-            <documentation>
-                <html:h1>
-                    A flexible layout configurable with pattern string.
-                </html:h1>
-                <html:p>
-                    The goal of this class is to {@link org.apache.logging.log4j.core.Layout#toByteArray format} a
-                    {@link LogEvent} and
-                    return the results. The format of the result depends on the <html:em>conversion pattern</html:em>.
-                </html:p>
-                <html:p>
-                    The conversion pattern is closely related to the conversion pattern of the printf function in C. A
-                    conversion pattern
-                    is composed of literal text and format control expressions called <html:em>conversion specifiers</html:em>.
-                </html:p>
-            </documentation>
-        </annotation>
-        <attribute name="pattern" default="%m%n">
-            <annotation>
-                <documentation>The pattern to use to format log events.</documentation>
-            </annotation>
-        </attribute>
-    </complexType>
-
-    <complexType name="org.apache.logging.log4j.core.config.Property">
-        <annotation>
-            <documentation>Represents a key/value pair in the configuration.</documentation>
-        </annotation>
-        <attribute name="key" type="string" use="required">
-            <annotation>
-                <documentation>The key.</documentation>
-            </annotation>
-        </attribute>
-        <attribute name="value" type="string" use="required">
-            <annotation>
-                <documentation>The value.</documentation>
-            </annotation>
-        </attribute>
-    </complexType>
-</schema>
\ No newline at end of file
diff --git a/log4j-docgen/src/test/resources/xsd/XMLSchema.xsd b/log4j-docgen/src/test/resources/xsd/XMLSchema.xsd
new file mode 100644
index 0000000..dde1c70
--- /dev/null
+++ b/log4j-docgen/src/test/resources/xsd/XMLSchema.xsd
@@ -0,0 +1,2363 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- XML Schema schema for XML Schemas: Part 1: Structures -->
+<!-- Note this schema is NOT the normative structures schema. -->
+<!-- The prose copy in the structures REC is the normative -->
+<!-- version (which shouldn't differ from this one except for -->
+<!-- this comment and entity expansions, but just in case -->
+<xs:schema targetNamespace="http://www.w3.org/2001/XMLSchema" blockDefault="#all" elementFormDefault="qualified" version="1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema" xml:lang="EN" xmlns:hfp="http://www.w3.org/2001/XMLSchema-hasFacetAndProperty">
+ <xs:annotation>
+  <xs:documentation>
+    Part 1 version: Id: structures.xsd,v 1.2 2004/01/15 11:34:25 ht Exp 
+    Part 2 version: Id: datatypes.xsd,v 1.3 2004/01/23 18:11:13 ht Exp 
+  </xs:documentation>
+ </xs:annotation>
+
+ <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/2004/PER-xmlschema-1-20040318/structures.html">
+   The schema corresponding to this document is normative,
+   with respect to the syntactic constraints it expresses in the
+   XML Schema language.  The documentation (within &lt;documentation&gt; elements)
+   below, is not normative, but rather highlights important aspects of
+   the W3C Recommendation of which this is a part</xs:documentation>
+ </xs:annotation>
+
+ <xs:annotation>
+   <xs:documentation>
+   The simpleType element and all of its members are defined
+      towards the end of this schema document</xs:documentation>
+ </xs:annotation>
+
+ <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd">
+   <xs:annotation>
+     <xs:documentation>
+       Get access to the xml: attribute groups for xml:lang
+       as declared on 'schema' and 'documentation' below
+     </xs:documentation>
+   </xs:annotation>
+ </xs:import>
+
+ <xs:complexType name="openAttrs">
+   <xs:annotation>
+     <xs:documentation>
+       This type is extended by almost all schema types
+       to allow attributes from other namespaces to be
+       added to user schemas.
+     </xs:documentation>
+   </xs:annotation>
+   <xs:complexContent>
+     <xs:restriction base="xs:anyType">
+       <xs:anyAttribute namespace="##other" processContents="lax"/>
+     </xs:restriction>
+   </xs:complexContent>
+ </xs:complexType>
+
+ <xs:complexType name="annotated">
+   <xs:annotation>
+     <xs:documentation>
+       This type is extended by all types which allow annotation
+       other than &lt;schema&gt; itself
+     </xs:documentation>
+   </xs:annotation>
+   <xs:complexContent>
+     <xs:extension base="xs:openAttrs">
+       <xs:sequence>
+         <xs:element ref="xs:annotation" minOccurs="0"/>
+       </xs:sequence>
+       <xs:attribute name="id" type="xs:ID"/>
+     </xs:extension>
+   </xs:complexContent>
+ </xs:complexType>
+
+ <xs:group name="schemaTop">
+  <xs:annotation>
+   <xs:documentation>
+   This group is for the
+   elements which occur freely at the top level of schemas.
+   All of their types are based on the "annotated" type by extension.</xs:documentation>
+  </xs:annotation>
+  <xs:choice>
+   <xs:group ref="xs:redefinable"/>
+   <xs:element ref="xs:element"/>
+   <xs:element ref="xs:attribute"/>
+   <xs:element ref="xs:notation"/>
+  </xs:choice>
+ </xs:group>
+ 
+ <xs:group name="redefinable">
+  <xs:annotation>
+   <xs:documentation>
+   This group is for the
+   elements which can self-redefine (see &lt;redefine&gt; below).</xs:documentation>
+  </xs:annotation>
+  <xs:choice>
+   <xs:element ref="xs:simpleType"/>
+   <xs:element ref="xs:complexType"/>
+   <xs:element ref="xs:group"/>
+   <xs:element ref="xs:attributeGroup"/>
+  </xs:choice>
+ </xs:group>
+
+ <xs:simpleType name="formChoice">
+  <xs:annotation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+  </xs:annotation>
+  <xs:restriction base="xs:NMTOKEN">
+   <xs:enumeration value="qualified"/>
+   <xs:enumeration value="unqualified"/>
+  </xs:restriction>
+ </xs:simpleType>
+
+ <xs:simpleType name="reducedDerivationControl">
+  <xs:annotation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+  </xs:annotation>
+  <xs:restriction base="xs:derivationControl">
+   <xs:enumeration value="extension"/>
+   <xs:enumeration value="restriction"/>
+  </xs:restriction>
+ </xs:simpleType>
+
+ <xs:simpleType name="derivationSet">
+  <xs:annotation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+   <xs:documentation>
+   #all or (possibly empty) subset of {extension, restriction}</xs:documentation>
+  </xs:annotation>
+  <xs:union>
+   <xs:simpleType>    
+    <xs:restriction base="xs:token">
+     <xs:enumeration value="#all"/>
+    </xs:restriction>
+   </xs:simpleType>
+   <xs:simpleType>
+    <xs:list itemType="xs:reducedDerivationControl"/>
+   </xs:simpleType>
+  </xs:union>
+ </xs:simpleType>
+
+ <xs:simpleType name="typeDerivationControl">
+  <xs:annotation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+  </xs:annotation>
+  <xs:restriction base="xs:derivationControl">
+   <xs:enumeration value="extension"/>
+   <xs:enumeration value="restriction"/>
+   <xs:enumeration value="list"/>
+   <xs:enumeration value="union"/>
+  </xs:restriction>
+ </xs:simpleType>
+
+  <xs:simpleType name="fullDerivationSet">
+  <xs:annotation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+   <xs:documentation>
+   #all or (possibly empty) subset of {extension, restriction, list, union}</xs:documentation>
+  </xs:annotation>
+  <xs:union>
+   <xs:simpleType>    
+    <xs:restriction base="xs:token">
+     <xs:enumeration value="#all"/>
+    </xs:restriction>
+   </xs:simpleType>
+   <xs:simpleType>
+    <xs:list itemType="xs:typeDerivationControl"/>
+   </xs:simpleType>
+  </xs:union>
+ </xs:simpleType>
+
+ <xs:element name="schema" id="schema">
+  <xs:annotation>
+    <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-schema"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:openAttrs">
+     <xs:sequence>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+       <xs:element ref="xs:include"/>
+       <xs:element ref="xs:import"/>
+       <xs:element ref="xs:redefine"/>
+       <xs:element ref="xs:annotation"/>
+      </xs:choice>
+      <xs:sequence minOccurs="0" maxOccurs="unbounded">
+       <xs:group ref="xs:schemaTop"/>
+       <xs:element ref="xs:annotation" minOccurs="0" maxOccurs="unbounded"/>
+      </xs:sequence>
+     </xs:sequence>
+     <xs:attribute name="targetNamespace" type="xs:anyURI"/>
+     <xs:attribute name="version" type="xs:token"/>
+     <xs:attribute name="finalDefault" type="xs:fullDerivationSet" use="optional" default=""/>
+     <xs:attribute name="blockDefault" type="xs:blockSet" use="optional" default=""/>
+     <xs:attribute name="attributeFormDefault" type="xs:formChoice" use="optional" default="unqualified"/>
+     <xs:attribute name="elementFormDefault" type="xs:formChoice" use="optional" default="unqualified"/>
+     <xs:attribute name="id" type="xs:ID"/>
+     <xs:attribute ref="xml:lang"/>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+
+  <xs:key name="element">
+   <xs:selector xpath="xs:element"/>
+   <xs:field xpath="@name"/>
+  </xs:key>
+
+  <xs:key name="attribute">
+   <xs:selector xpath="xs:attribute"/>
+   <xs:field xpath="@name"/>
+  </xs:key>
+
+  <xs:key name="type">
+   <xs:selector xpath="xs:complexType|xs:simpleType"/>
+   <xs:field xpath="@name"/>
+  </xs:key>
+ 
+  <xs:key name="group">
+   <xs:selector xpath="xs:group"/>
+   <xs:field xpath="@name"/>
+  </xs:key>
+ 
+  <xs:key name="attributeGroup">
+   <xs:selector xpath="xs:attributeGroup"/>
+   <xs:field xpath="@name"/>
+  </xs:key>
+ 
+  <xs:key name="notation">
+   <xs:selector xpath="xs:notation"/>
+   <xs:field xpath="@name"/>
+  </xs:key>
+
+  <xs:key name="identityConstraint">
+   <xs:selector xpath=".//xs:key|.//xs:unique|.//xs:keyref"/>
+   <xs:field xpath="@name"/>
+  </xs:key>
+
+ </xs:element>
+
+ <xs:simpleType name="allNNI">
+  <xs:annotation><xs:documentation>
+   for maxOccurs</xs:documentation></xs:annotation>
+  <xs:union memberTypes="xs:nonNegativeInteger">
+   <xs:simpleType>
+    <xs:restriction base="xs:NMTOKEN">
+     <xs:enumeration value="unbounded"/>
+    </xs:restriction>
+   </xs:simpleType>
+  </xs:union>
+ </xs:simpleType>
+
+ <xs:attributeGroup name="occurs">
+  <xs:annotation><xs:documentation>
+   for all particles</xs:documentation></xs:annotation>
+  <xs:attribute name="minOccurs" type="xs:nonNegativeInteger" use="optional" default="1"/>
+  <xs:attribute name="maxOccurs" type="xs:allNNI" use="optional" default="1"/>
+ </xs:attributeGroup>
+
+ <xs:attributeGroup name="defRef">
+  <xs:annotation><xs:documentation>
+   for element, group and attributeGroup,
+   which both define and reference</xs:documentation></xs:annotation>
+  <xs:attribute name="name" type="xs:NCName"/>
+  <xs:attribute name="ref" type="xs:QName"/>
+ </xs:attributeGroup>
+
+ <xs:group name="typeDefParticle">
+  <xs:annotation>
+    <xs:documentation>
+   'complexType' uses this</xs:documentation></xs:annotation>
+  <xs:choice>
+   <xs:element name="group" type="xs:groupRef"/>
+   <xs:element ref="xs:all"/>
+   <xs:element ref="xs:choice"/>
+   <xs:element ref="xs:sequence"/>
+  </xs:choice>
+ </xs:group>
+ 
+ 
+
+ <xs:group name="nestedParticle">
+  <xs:choice>
+   <xs:element name="element" type="xs:localElement"/>
+   <xs:element name="group" type="xs:groupRef"/>
+   <xs:element ref="xs:choice"/>
+   <xs:element ref="xs:sequence"/>
+   <xs:element ref="xs:any"/>
+  </xs:choice>
+ </xs:group>
+ 
+ <xs:group name="particle">
+  <xs:choice>
+   <xs:element name="element" type="xs:localElement"/>
+   <xs:element name="group" type="xs:groupRef"/>
+   <xs:element ref="xs:all"/>
+   <xs:element ref="xs:choice"/>
+   <xs:element ref="xs:sequence"/>
+   <xs:element ref="xs:any"/>
+  </xs:choice>
+ </xs:group>
+ 
+ <xs:complexType name="attribute">
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:sequence>
+     <xs:element name="simpleType" minOccurs="0" type="xs:localSimpleType"/>
+    </xs:sequence>
+    <xs:attributeGroup ref="xs:defRef"/>
+    <xs:attribute name="type" type="xs:QName"/>
+    <xs:attribute name="use" use="optional" default="optional">
+     <xs:simpleType>
+      <xs:restriction base="xs:NMTOKEN">
+       <xs:enumeration value="prohibited"/>
+       <xs:enumeration value="optional"/>
+       <xs:enumeration value="required"/>
+      </xs:restriction>
+     </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="default" type="xs:string"/>
+    <xs:attribute name="fixed" type="xs:string"/>
+    <xs:attribute name="form" type="xs:formChoice"/>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="topLevelAttribute">
+  <xs:complexContent>
+   <xs:restriction base="xs:attribute">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:element name="simpleType" minOccurs="0" type="xs:localSimpleType"/>
+    </xs:sequence>
+    <xs:attribute name="ref" use="prohibited"/>
+    <xs:attribute name="form" use="prohibited"/>
+    <xs:attribute name="use" use="prohibited"/>
+    <xs:attribute name="name" use="required" type="xs:NCName"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:group name="attrDecls">
+  <xs:sequence>
+   <xs:choice minOccurs="0" maxOccurs="unbounded">
+    <xs:element name="attribute" type="xs:attribute"/>
+    <xs:element name="attributeGroup" type="xs:attributeGroupRef"/>
+   </xs:choice>
+   <xs:element ref="xs:anyAttribute" minOccurs="0"/>
+  </xs:sequence>
+ </xs:group>
+
+ <xs:element name="anyAttribute" type="xs:wildcard" id="anyAttribute">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-anyAttribute"/>
+  </xs:annotation>
+ </xs:element>
+
+ <xs:group name="complexTypeModel">
+  <xs:choice>
+      <xs:element ref="xs:simpleContent"/>
+      <xs:element ref="xs:complexContent"/>
+      <xs:sequence>
+       <xs:annotation>
+        <xs:documentation>
+   This branch is short for
+   &lt;complexContent&gt;
+   &lt;restriction base="xs:anyType"&gt;
+   ...
+   &lt;/restriction&gt;
+   &lt;/complexContent&gt;</xs:documentation>
+       </xs:annotation>
+       <xs:group ref="xs:typeDefParticle" minOccurs="0"/>
+       <xs:group ref="xs:attrDecls"/>
+      </xs:sequence>
+  </xs:choice>
+ </xs:group>
+
+ <xs:complexType name="complexType" abstract="true">
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:group ref="xs:complexTypeModel"/>
+    <xs:attribute name="name" type="xs:NCName">
+     <xs:annotation>
+      <xs:documentation>
+      Will be restricted to required or forbidden</xs:documentation>
+     </xs:annotation>
+    </xs:attribute>
+    <xs:attribute name="mixed" type="xs:boolean" use="optional" default="false">
+     <xs:annotation>
+      <xs:documentation>
+      Not allowed if simpleContent child is chosen.
+      May be overriden by setting on complexContent child.</xs:documentation>
+    </xs:annotation>
+    </xs:attribute>
+    <xs:attribute name="abstract" type="xs:boolean" use="optional" default="false"/>
+    <xs:attribute name="final" type="xs:derivationSet"/>
+    <xs:attribute name="block" type="xs:derivationSet"/>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="topLevelComplexType">
+  <xs:complexContent>
+   <xs:restriction base="xs:complexType">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:group ref="xs:complexTypeModel"/>
+    </xs:sequence>
+    <xs:attribute name="name" type="xs:NCName" use="required"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="localComplexType">
+  <xs:complexContent>
+   <xs:restriction base="xs:complexType">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:group ref="xs:complexTypeModel"/>
+    </xs:sequence>
+    <xs:attribute name="name" use="prohibited"/>
+    <xs:attribute name="abstract" use="prohibited"/>
+    <xs:attribute name="final" use="prohibited"/>
+    <xs:attribute name="block" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="restrictionType">
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:sequence>
+     <xs:choice minOccurs="0">
+      <xs:group ref="xs:typeDefParticle"/>
+      <xs:group ref="xs:simpleRestrictionModel"/>
+     </xs:choice>
+     <xs:group ref="xs:attrDecls"/>
+    </xs:sequence>
+    <xs:attribute name="base" type="xs:QName" use="required"/>
+   </xs:extension>
+  </xs:complexContent>       
+ </xs:complexType>
+
+ <xs:complexType name="complexRestrictionType">
+  <xs:complexContent>
+   <xs:restriction base="xs:restrictionType">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:choice minOccurs="0">
+      <xs:annotation>
+       <xs:documentation>This choice is added simply to
+                   make this a valid restriction per the REC</xs:documentation>
+      </xs:annotation>
+      <xs:group ref="xs:typeDefParticle"/>
+     </xs:choice>
+     <xs:group ref="xs:attrDecls"/>
+    </xs:sequence>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>       
+ </xs:complexType>
+
+ <xs:complexType name="extensionType">
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:sequence>
+     <xs:group ref="xs:typeDefParticle" minOccurs="0"/>
+     <xs:group ref="xs:attrDecls"/>
+    </xs:sequence>
+    <xs:attribute name="base" type="xs:QName" use="required"/>
+   </xs:extension>
+  </xs:complexContent>       
+ </xs:complexType>
+
+ <xs:element name="complexContent" id="complexContent">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-complexContent"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:annotated">
+     <xs:choice>
+      <xs:element name="restriction" type="xs:complexRestrictionType"/>
+      <xs:element name="extension" type="xs:extensionType"/>
+     </xs:choice>     
+     <xs:attribute name="mixed" type="xs:boolean">
+      <xs:annotation>
+       <xs:documentation>
+       Overrides any setting on complexType parent.</xs:documentation>
+      </xs:annotation>
+    </xs:attribute>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+ </xs:element>
+
+ <xs:complexType name="simpleRestrictionType">
+  <xs:complexContent>
+   <xs:restriction base="xs:restrictionType">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:choice minOccurs="0">
+      <xs:annotation>
+       <xs:documentation>This choice is added simply to
+                   make this a valid restriction per the REC</xs:documentation>
+      </xs:annotation>
+      <xs:group ref="xs:simpleRestrictionModel"/>
+     </xs:choice>
+     <xs:group ref="xs:attrDecls"/>
+    </xs:sequence>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:complexType name="simpleExtensionType">
+  <xs:complexContent>
+   <xs:restriction base="xs:extensionType">
+    <xs:sequence>
+     <xs:annotation>
+      <xs:documentation>
+      No typeDefParticle group reference</xs:documentation>
+     </xs:annotation>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:group ref="xs:attrDecls"/>
+    </xs:sequence>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:element name="simpleContent" id="simpleContent">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-simpleContent"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:annotated">
+     <xs:choice>
+      <xs:element name="restriction" type="xs:simpleRestrictionType"/>
+      <xs:element name="extension" type="xs:simpleExtensionType"/>
+     </xs:choice>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+ </xs:element>
+ 
+ <xs:element name="complexType" type="xs:topLevelComplexType" id="complexType">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-complexType"/>
+  </xs:annotation>
+ </xs:element>
+
+
+  <xs:simpleType name="blockSet">
+   <xs:annotation>
+    <xs:documentation>
+    A utility type, not for public use</xs:documentation>
+    <xs:documentation>
+    #all or (possibly empty) subset of {substitution, extension,
+    restriction}</xs:documentation>
+   </xs:annotation>
+   <xs:union>
+    <xs:simpleType>    
+     <xs:restriction base="xs:token">
+      <xs:enumeration value="#all"/>
+     </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType>
+     <xs:list>
+      <xs:simpleType>
+       <xs:restriction base="xs:derivationControl">
+        <xs:enumeration value="extension"/>
+        <xs:enumeration value="restriction"/>
+        <xs:enumeration value="substitution"/>
+       </xs:restriction>
+      </xs:simpleType>
+     </xs:list>
+    </xs:simpleType>
+   </xs:union>  
+  </xs:simpleType>
+
+ <xs:complexType name="element" abstract="true">
+  <xs:annotation>
+   <xs:documentation>
+   The element element can be used either
+   at the top level to define an element-type binding globally,
+   or within a content model to either reference a globally-defined
+   element or type or declare an element-type binding locally.
+   The ref form is not allowed at the top level.</xs:documentation>
+  </xs:annotation>
+
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:sequence>
+     <xs:choice minOccurs="0">
+      <xs:element name="simpleType" type="xs:localSimpleType"/>
+      <xs:element name="complexType" type="xs:localComplexType"/>
+     </xs:choice>
+     <xs:group ref="xs:identityConstraint" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+    <xs:attributeGroup ref="xs:defRef"/>
+    <xs:attribute name="type" type="xs:QName"/>
+    <xs:attribute name="substitutionGroup" type="xs:QName"/>
+    <xs:attributeGroup ref="xs:occurs"/>
+    <xs:attribute name="default" type="xs:string"/>
+    <xs:attribute name="fixed" type="xs:string"/>
+    <xs:attribute name="nillable" type="xs:boolean" use="optional" default="false"/>
+    <xs:attribute name="abstract" type="xs:boolean" use="optional" default="false"/>
+    <xs:attribute name="final" type="xs:derivationSet"/>
+    <xs:attribute name="block" type="xs:blockSet"/>
+    <xs:attribute name="form" type="xs:formChoice"/>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="topLevelElement">
+  <xs:complexContent>
+   <xs:restriction base="xs:element">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:choice minOccurs="0">
+      <xs:element name="simpleType" type="xs:localSimpleType"/>
+      <xs:element name="complexType" type="xs:localComplexType"/>
+     </xs:choice>
+     <xs:group ref="xs:identityConstraint" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+    <xs:attribute name="ref" use="prohibited"/>
+    <xs:attribute name="form" use="prohibited"/>
+    <xs:attribute name="minOccurs" use="prohibited"/>
+    <xs:attribute name="maxOccurs" use="prohibited"/>
+    <xs:attribute name="name" use="required" type="xs:NCName"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="localElement">
+  <xs:complexContent>
+   <xs:restriction base="xs:element">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:choice minOccurs="0">
+      <xs:element name="simpleType" type="xs:localSimpleType"/>
+      <xs:element name="complexType" type="xs:localComplexType"/>
+     </xs:choice>
+     <xs:group ref="xs:identityConstraint" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+    <xs:attribute name="substitutionGroup" use="prohibited"/>
+    <xs:attribute name="final" use="prohibited"/>
+    <xs:attribute name="abstract" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:element name="element" type="xs:topLevelElement" id="element">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-element"/>
+  </xs:annotation>
+ </xs:element>
+
+ <xs:complexType name="group" abstract="true">
+  <xs:annotation>
+   <xs:documentation>
+   group type for explicit groups, named top-level groups and
+   group references</xs:documentation>
+  </xs:annotation>
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:group ref="xs:particle" minOccurs="0" maxOccurs="unbounded"/>
+    <xs:attributeGroup ref="xs:defRef"/>
+    <xs:attributeGroup ref="xs:occurs"/>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="realGroup">
+  <xs:complexContent>
+   <xs:restriction base="xs:group">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:choice minOccurs="0" maxOccurs="1">
+      <xs:element ref="xs:all"/>
+      <xs:element ref="xs:choice"/>
+      <xs:element ref="xs:sequence"/>
+     </xs:choice>
+    </xs:sequence>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:complexType name="namedGroup">
+  <xs:complexContent>
+   <xs:restriction base="xs:realGroup">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:choice minOccurs="1" maxOccurs="1">
+      <xs:element name="all">
+       <xs:complexType>
+        <xs:complexContent>
+         <xs:restriction base="xs:all">
+          <xs:group ref="xs:allModel"/>
+          <xs:attribute name="minOccurs" use="prohibited"/>
+          <xs:attribute name="maxOccurs" use="prohibited"/>
+          <xs:anyAttribute namespace="##other" processContents="lax"/>
+         </xs:restriction>
+        </xs:complexContent>
+       </xs:complexType>
+      </xs:element>
+      <xs:element name="choice" type="xs:simpleExplicitGroup"/>
+      <xs:element name="sequence" type="xs:simpleExplicitGroup"/>
+     </xs:choice>
+    </xs:sequence>
+    <xs:attribute name="name" use="required" type="xs:NCName"/>
+    <xs:attribute name="ref" use="prohibited"/>
+    <xs:attribute name="minOccurs" use="prohibited"/>
+    <xs:attribute name="maxOccurs" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:complexType name="groupRef">
+  <xs:complexContent>
+   <xs:restriction base="xs:realGroup">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+    </xs:sequence>
+    <xs:attribute name="ref" use="required" type="xs:QName"/>
+    <xs:attribute name="name" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:complexType name="explicitGroup">
+  <xs:annotation>
+   <xs:documentation>
+   group type for the three kinds of group</xs:documentation>
+  </xs:annotation>
+  <xs:complexContent>
+   <xs:restriction base="xs:group">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:group ref="xs:nestedParticle" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+    <xs:attribute name="name" type="xs:NCName" use="prohibited"/>
+    <xs:attribute name="ref" type="xs:QName" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="simpleExplicitGroup">
+  <xs:complexContent>
+   <xs:restriction base="xs:explicitGroup">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:group ref="xs:nestedParticle" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+    <xs:attribute name="minOccurs" use="prohibited"/>
+    <xs:attribute name="maxOccurs" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:group name="allModel">
+  <xs:sequence>
+      <xs:element ref="xs:annotation" minOccurs="0"/>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+       <xs:annotation>
+        <xs:documentation>This choice with min/max is here to
+                          avoid a pblm with the Elt:All/Choice/Seq
+                          Particle derivation constraint</xs:documentation>
+       </xs:annotation>
+       <xs:element name="element" type="xs:narrowMaxMin"/>
+      </xs:choice>
+     </xs:sequence>
+ </xs:group>
+ 
+ 
+ <xs:complexType name="narrowMaxMin">
+  <xs:annotation>
+   <xs:documentation>restricted max/min</xs:documentation>
+  </xs:annotation>
+  <xs:complexContent>
+   <xs:restriction base="xs:localElement">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:choice minOccurs="0">
+      <xs:element name="simpleType" type="xs:localSimpleType"/>
+      <xs:element name="complexType" type="xs:localComplexType"/>
+     </xs:choice>
+     <xs:group ref="xs:identityConstraint" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+    <xs:attribute name="minOccurs" use="optional" default="1">
+     <xs:simpleType>
+      <xs:restriction base="xs:nonNegativeInteger">
+       <xs:enumeration value="0"/>
+       <xs:enumeration value="1"/>
+      </xs:restriction>
+     </xs:simpleType>
+    </xs:attribute>
+    <xs:attribute name="maxOccurs" use="optional" default="1">
+     <xs:simpleType>
+      <xs:restriction base="xs:allNNI">
+       <xs:enumeration value="0"/>
+       <xs:enumeration value="1"/>
+      </xs:restriction>
+     </xs:simpleType>
+    </xs:attribute>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+  <xs:complexType name="all">
+   <xs:annotation>
+    <xs:documentation>
+   Only elements allowed inside</xs:documentation>
+   </xs:annotation>
+   <xs:complexContent>
+    <xs:restriction base="xs:explicitGroup">
+     <xs:group ref="xs:allModel"/>
+     <xs:attribute name="minOccurs" use="optional" default="1">
+      <xs:simpleType>
+       <xs:restriction base="xs:nonNegativeInteger">
+        <xs:enumeration value="0"/>
+        <xs:enumeration value="1"/>
+       </xs:restriction>
+      </xs:simpleType>
+     </xs:attribute>
+     <xs:attribute name="maxOccurs" use="optional" default="1">
+      <xs:simpleType>
+       <xs:restriction base="xs:allNNI">
+        <xs:enumeration value="1"/>
+       </xs:restriction>
+      </xs:simpleType>
+     </xs:attribute>
+     <xs:anyAttribute namespace="##other" processContents="lax"/>
+    </xs:restriction>
+   </xs:complexContent>
+  </xs:complexType>
+
+ <xs:element name="all" id="all" type="xs:all">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-all"/>
+  </xs:annotation>
+ </xs:element>
+
+ <xs:element name="choice" type="xs:explicitGroup" id="choice">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-choice"/>
+  </xs:annotation>
+ </xs:element>
+
+ <xs:element name="sequence" type="xs:explicitGroup" id="sequence">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-sequence"/>
+  </xs:annotation>
+ </xs:element>
+
+ <xs:element name="group" type="xs:namedGroup" id="group">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-group"/>
+  </xs:annotation>
+ </xs:element>
+
+ <xs:complexType name="wildcard">
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:attribute name="namespace" type="xs:namespaceList" use="optional" default="##any"/>
+    <xs:attribute name="processContents" use="optional" default="strict">
+     <xs:simpleType>
+      <xs:restriction base="xs:NMTOKEN">
+       <xs:enumeration value="skip"/>
+       <xs:enumeration value="lax"/>
+       <xs:enumeration value="strict"/>
+      </xs:restriction>
+     </xs:simpleType>
+    </xs:attribute>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:element name="any" id="any">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-any"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:wildcard">
+     <xs:attributeGroup ref="xs:occurs"/>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+ </xs:element>
+
+  <xs:annotation>
+   <xs:documentation>
+   simple type for the value of the 'namespace' attr of
+   'any' and 'anyAttribute'</xs:documentation>
+  </xs:annotation>
+  <xs:annotation>
+   <xs:documentation>
+   Value is
+              ##any      - - any non-conflicting WFXML/attribute at all
+
+              ##other    - - any non-conflicting WFXML/attribute from
+                              namespace other than targetNS
+
+              ##local    - - any unqualified non-conflicting WFXML/attribute 
+
+              one or     - - any non-conflicting WFXML/attribute from
+              more URI        the listed namespaces
+              references
+              (space separated)
+
+    ##targetNamespace or ##local may appear in the above list, to
+        refer to the targetNamespace of the enclosing
+        schema or an absent targetNamespace respectively</xs:documentation>
+  </xs:annotation>
+
+ <xs:simpleType name="namespaceList">
+  <xs:annotation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+  </xs:annotation>
+  <xs:union>
+   <xs:simpleType>
+    <xs:restriction base="xs:token">
+     <xs:enumeration value="##any"/>
+     <xs:enumeration value="##other"/>
+    </xs:restriction>
+   </xs:simpleType>
+   <xs:simpleType>
+    <xs:list>
+     <xs:simpleType>
+      <xs:union memberTypes="xs:anyURI">
+       <xs:simpleType>
+        <xs:restriction base="xs:token">
+         <xs:enumeration value="##targetNamespace"/>
+         <xs:enumeration value="##local"/>
+        </xs:restriction>
+       </xs:simpleType>
+      </xs:union>
+     </xs:simpleType>
+    </xs:list>
+   </xs:simpleType>
+  </xs:union>
+ </xs:simpleType>
+
+ <xs:element name="attribute" type="xs:topLevelAttribute" id="attribute">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-attribute"/>
+  </xs:annotation>
+ </xs:element>
+
+ <xs:complexType name="attributeGroup" abstract="true">
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:group ref="xs:attrDecls"/>
+    <xs:attributeGroup ref="xs:defRef"/>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+ 
+ <xs:complexType name="namedAttributeGroup">
+  <xs:complexContent>
+   <xs:restriction base="xs:attributeGroup">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+     <xs:group ref="xs:attrDecls"/>
+    </xs:sequence>
+    <xs:attribute name="name" use="required" type="xs:NCName"/>
+    <xs:attribute name="ref" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:complexType name="attributeGroupRef">
+  <xs:complexContent>
+   <xs:restriction base="xs:attributeGroup">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+    </xs:sequence>
+    <xs:attribute name="ref" use="required" type="xs:QName"/>
+    <xs:attribute name="name" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:element name="attributeGroup" type="xs:namedAttributeGroup" id="attributeGroup">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-attributeGroup"/>
+  </xs:annotation>
+ </xs:element>
+
+ <xs:element name="include" id="include">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-include"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:annotated">
+     <xs:attribute name="schemaLocation" type="xs:anyURI" use="required"/>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+ </xs:element>
+
+ <xs:element name="redefine" id="redefine">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-redefine"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:openAttrs">
+     <xs:choice minOccurs="0" maxOccurs="unbounded">
+      <xs:element ref="xs:annotation"/>
+      <xs:group ref="xs:redefinable"/>
+     </xs:choice>
+     <xs:attribute name="schemaLocation" type="xs:anyURI" use="required"/>
+     <xs:attribute name="id" type="xs:ID"/>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+ </xs:element>
+
+ <xs:element name="import" id="import">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-import"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:annotated">
+     <xs:attribute name="namespace" type="xs:anyURI"/>
+     <xs:attribute name="schemaLocation" type="xs:anyURI"/>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+ </xs:element>
+
+ <xs:element name="selector" id="selector">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-selector"/>
+  </xs:annotation>
+  <xs:complexType>
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+     <xs:attribute name="xpath" use="required">
+      <xs:simpleType>
+       <xs:annotation>
+        <xs:documentation>A subset of XPath expressions for use
+in selectors</xs:documentation>
+        <xs:documentation>A utility type, not for public
+use</xs:documentation>
+       </xs:annotation>
+       <xs:restriction base="xs:token">
+        <xs:annotation>
+         <xs:documentation>The following pattern is intended to allow XPath
+                           expressions per the following EBNF:
+          Selector    ::=    Path ( '|' Path )*  
+          Path    ::=    ('.//')? Step ( '/' Step )*  
+          Step    ::=    '.' | NameTest  
+          NameTest    ::=    QName | '*' | NCName ':' '*'  
+                           child:: is also allowed
+         </xs:documentation>
+        </xs:annotation>
+        <xs:pattern value="(\.//)?(((child::)?((\i\c*:)?(\i\c*|\*)))|\.)(/(((child::)?((\i\c*:)?(\i\c*|\*)))|\.))*(\|(\.//)?(((child::)?((\i\c*:)?(\i\c*|\*)))|\.)(/(((child::)?((\i\c*:)?(\i\c*|\*)))|\.))*)*">
+        </xs:pattern>
+       </xs:restriction>
+      </xs:simpleType>
+     </xs:attribute>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+ </xs:element>
+
+ <xs:element name="field" id="field">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-field"/>
+  </xs:annotation>
+  <xs:complexType>
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+     <xs:attribute name="xpath" use="required">
+      <xs:simpleType>
+       <xs:annotation>
+        <xs:documentation>A subset of XPath expressions for use
+in fields</xs:documentation>
+        <xs:documentation>A utility type, not for public
+use</xs:documentation>
+       </xs:annotation>
+       <xs:restriction base="xs:token">
+        <xs:annotation>
+         <xs:documentation>The following pattern is intended to allow XPath
+                           expressions per the same EBNF as for selector,
+                           with the following change:
+          Path    ::=    ('.//')? ( Step '/' )* ( Step | '@' NameTest ) 
+         </xs:documentation>
+        </xs:annotation>
+        <xs:pattern value="(\.//)?((((child::)?((\i\c*:)?(\i\c*|\*)))|\.)/)*((((child::)?((\i\c*:)?(\i\c*|\*)))|\.)|((attribute::|@)((\i\c*:)?(\i\c*|\*))))(\|(\.//)?((((child::)?((\i\c*:)?(\i\c*|\*)))|\.)/)*((((child::)?((\i\c*:)?(\i\c*|\*)))|\.)|((attribute::|@)((\i\c*:)?(\i\c*|\*)))))*">
+        </xs:pattern>
+       </xs:restriction>
+      </xs:simpleType>
+     </xs:attribute>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+ </xs:element>
+
+ <xs:complexType name="keybase">
+  <xs:complexContent>
+   <xs:extension base="xs:annotated">
+    <xs:sequence>
+     <xs:element ref="xs:selector"/>
+     <xs:element ref="xs:field" minOccurs="1" maxOccurs="unbounded"/>
+    </xs:sequence>
+    <xs:attribute name="name" type="xs:NCName" use="required"/>
+   </xs:extension>
+  </xs:complexContent>
+ </xs:complexType>
+
+ <xs:group name="identityConstraint">
+  <xs:annotation>
+   <xs:documentation>The three kinds of identity constraints, all with
+                     type of or derived from 'keybase'.
+   </xs:documentation>
+  </xs:annotation>
+  <xs:choice>
+   <xs:element ref="xs:unique"/>
+   <xs:element ref="xs:key"/>
+   <xs:element ref="xs:keyref"/>
+  </xs:choice>
+ </xs:group>
+
+ <xs:element name="unique" type="xs:keybase" id="unique">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-unique"/>
+  </xs:annotation>
+ </xs:element>
+ <xs:element name="key" type="xs:keybase" id="key">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-key"/>
+  </xs:annotation>
+ </xs:element>
+ <xs:element name="keyref" id="keyref">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-keyref"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:keybase">
+     <xs:attribute name="refer" type="xs:QName" use="required"/>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+ </xs:element>
+
+ <xs:element name="notation" id="notation">
+  <xs:annotation>
+   <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-notation"/>
+  </xs:annotation>
+  <xs:complexType>
+   <xs:complexContent>
+    <xs:extension base="xs:annotated">
+     <xs:attribute name="name" type="xs:NCName" use="required"/>
+     <xs:attribute name="public" type="xs:public"/>
+     <xs:attribute name="system" type="xs:anyURI"/>
+    </xs:extension>
+   </xs:complexContent>
+  </xs:complexType>
+ </xs:element>
+
+ <xs:simpleType name="public">
+  <xs:annotation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+   <xs:documentation>
+   A public identifier, per ISO 8879</xs:documentation>
+  </xs:annotation>
+  <xs:restriction base="xs:token"/>
+ </xs:simpleType>
+
+ <xs:element name="appinfo" id="appinfo">
+   <xs:annotation>
+     <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-appinfo"/>
+   </xs:annotation>
+   <xs:complexType mixed="true">
+    <xs:sequence minOccurs="0" maxOccurs="unbounded">
+     <xs:any processContents="lax"/>
+    </xs:sequence>
+    <xs:attribute name="source" type="xs:anyURI"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:complexType>
+ </xs:element>
+
+ <xs:element name="documentation" id="documentation">
+   <xs:annotation>
+     <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-documentation"/>
+   </xs:annotation>
+   <xs:complexType mixed="true">
+    <xs:sequence minOccurs="0" maxOccurs="unbounded">
+     <xs:any processContents="lax"/>
+    </xs:sequence>
+    <xs:attribute name="source" type="xs:anyURI"/>
+    <xs:attribute ref="xml:lang"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:complexType>
+ </xs:element>
+
+ <xs:element name="annotation" id="annotation">
+   <xs:annotation>
+     <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-annotation"/>
+   </xs:annotation>
+   <xs:complexType>
+    <xs:complexContent>
+     <xs:extension base="xs:openAttrs">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+       <xs:element ref="xs:appinfo"/>
+       <xs:element ref="xs:documentation"/>
+      </xs:choice>
+      <xs:attribute name="id" type="xs:ID"/>
+     </xs:extension>
+    </xs:complexContent>
+   </xs:complexType>
+ </xs:element>
+
+ <xs:annotation>
+  <xs:documentation>
+   notations for use within XML Schema schemas</xs:documentation>
+ </xs:annotation>
+
+ <xs:notation name="XMLSchemaStructures" public="structures" system="http://www.w3.org/2000/08/XMLSchema.xsd"/>
+ <xs:notation name="XML" public="REC-xml-19980210" system="http://www.w3.org/TR/1998/REC-xml-19980210"/>
+  
+ <xs:complexType name="anyType" mixed="true">
+  <xs:annotation>
+   <xs:documentation>
+   Not the real urType, but as close an approximation as we can
+   get in the XML representation</xs:documentation>
+  </xs:annotation>
+  <xs:sequence>
+   <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
+  </xs:sequence>
+  <xs:anyAttribute processContents="lax"/>
+ </xs:complexType>
+
+  <xs:annotation>
+    <xs:documentation>
+      First the built-in primitive datatypes.  These definitions are for
+      information only, the real built-in definitions are magic.
+    </xs:documentation>
+
+    <xs:documentation>
+      For each built-in datatype in this schema (both primitive and
+      derived) can be uniquely addressed via a URI constructed
+      as follows:
+        1) the base URI is the URI of the XML Schema namespace
+        2) the fragment identifier is the name of the datatype
+
+      For example, to address the int datatype, the URI is:
+
+        http://www.w3.org/2001/XMLSchema#int
+
+      Additionally, each facet definition element can be uniquely
+      addressed via a URI constructed as follows:
+        1) the base URI is the URI of the XML Schema namespace
+        2) the fragment identifier is the name of the facet
+
+      For example, to address the maxInclusive facet, the URI is:
+
+        http://www.w3.org/2001/XMLSchema#maxInclusive
+
+      Additionally, each facet usage in a built-in datatype definition
+      can be uniquely addressed via a URI constructed as follows:
+        1) the base URI is the URI of the XML Schema namespace
+        2) the fragment identifier is the name of the datatype, followed
+           by a period (".") followed by the name of the facet
+
+      For example, to address the usage of the maxInclusive facet in
+      the definition of int, the URI is:
+
+        http://www.w3.org/2001/XMLSchema#int.maxInclusive
+
+    </xs:documentation>
+  </xs:annotation>
+
+  <xs:simpleType name="string" id="string">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#string"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="preserve" id="string.preserve"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="boolean" id="boolean">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="finite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#boolean"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="boolean.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="float" id="float">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="total"/>
+        <hfp:hasProperty name="bounded" value="true"/>
+        <hfp:hasProperty name="cardinality" value="finite"/>
+        <hfp:hasProperty name="numeric" value="true"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#float"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="float.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="double" id="double">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="total"/>
+        <hfp:hasProperty name="bounded" value="true"/>
+        <hfp:hasProperty name="cardinality" value="finite"/>
+        <hfp:hasProperty name="numeric" value="true"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#double"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="double.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="decimal" id="decimal">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="totalDigits"/>
+        <hfp:hasFacet name="fractionDigits"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="total"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="true"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#decimal"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="decimal.whiteSpace"/>
+    </xs:restriction>
+   </xs:simpleType>
+
+   <xs:simpleType name="duration" id="duration">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#duration"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="duration.whiteSpace"/>
+    </xs:restriction>
+   </xs:simpleType>
+
+ <xs:simpleType name="dateTime" id="dateTime">
+    <xs:annotation>
+    <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#dateTime"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="dateTime.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="time" id="time">
+    <xs:annotation>
+    <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#time"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="time.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="date" id="date">
+   <xs:annotation>
+    <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#date"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="date.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="gYearMonth" id="gYearMonth">
+   <xs:annotation>
+    <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#gYearMonth"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="gYearMonth.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="gYear" id="gYear">
+    <xs:annotation>
+    <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#gYear"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="gYear.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+ <xs:simpleType name="gMonthDay" id="gMonthDay">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+       <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#gMonthDay"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+         <xs:whiteSpace value="collapse" fixed="true" id="gMonthDay.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="gDay" id="gDay">
+    <xs:annotation>
+  <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#gDay"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+         <xs:whiteSpace value="collapse" fixed="true" id="gDay.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+ <xs:simpleType name="gMonth" id="gMonth">
+    <xs:annotation>
+  <xs:appinfo>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="maxInclusive"/>
+        <hfp:hasFacet name="maxExclusive"/>
+        <hfp:hasFacet name="minInclusive"/>
+        <hfp:hasFacet name="minExclusive"/>
+        <hfp:hasProperty name="ordered" value="partial"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#gMonth"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+         <xs:whiteSpace value="collapse" fixed="true" id="gMonth.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+   <xs:simpleType name="hexBinary" id="hexBinary">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#binary"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="hexBinary.whiteSpace"/>
+    </xs:restriction>
+   </xs:simpleType>
+
+ <xs:simpleType name="base64Binary" id="base64Binary">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#base64Binary"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="base64Binary.whiteSpace"/>
+    </xs:restriction>
+   </xs:simpleType>
+
+   <xs:simpleType name="anyURI" id="anyURI">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#anyURI"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="anyURI.whiteSpace"/>
+    </xs:restriction>
+   </xs:simpleType>
+
+  <xs:simpleType name="QName" id="QName">
+    <xs:annotation>
+        <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#QName"/>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="QName.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+   <xs:simpleType name="NOTATION" id="NOTATION">
+    <xs:annotation>
+        <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#NOTATION"/>
+      <xs:documentation>
+        NOTATION cannot be used directly in a schema; rather a type
+        must be derived from it by specifying at least one enumeration
+        facet whose value is the name of a NOTATION declared in the
+        schema.
+      </xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:anySimpleType">
+      <xs:whiteSpace value="collapse" fixed="true" id="NOTATION.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:annotation>
+    <xs:documentation>
+      Now the derived primitive types
+    </xs:documentation>
+  </xs:annotation>
+
+  <xs:simpleType name="normalizedString" id="normalizedString">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#normalizedString"/>
+    </xs:annotation>
+    <xs:restriction base="xs:string">
+      <xs:whiteSpace value="replace" id="normalizedString.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="token" id="token">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#token"/>
+    </xs:annotation>
+    <xs:restriction base="xs:normalizedString">
+      <xs:whiteSpace value="collapse" id="token.whiteSpace"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="language" id="language">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#language"/>
+    </xs:annotation>
+    <xs:restriction base="xs:token">
+      <xs:pattern value="[a-zA-Z]{1,8}(-[a-zA-Z0-9]{1,8})*" id="language.pattern">
+        <xs:annotation>
+          <xs:documentation source="http://www.ietf.org/rfc/rfc3066.txt">
+            pattern specifies the content of section 2.12 of XML 1.0e2
+            and RFC 3066 (Revised version of RFC 1766).
+          </xs:documentation>
+        </xs:annotation>
+      </xs:pattern>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="IDREFS" id="IDREFS">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#IDREFS"/>
+    </xs:annotation>
+    <xs:restriction>
+      <xs:simpleType>
+        <xs:list itemType="xs:IDREF"/>
+      </xs:simpleType>
+        <xs:minLength value="1" id="IDREFS.minLength"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="ENTITIES" id="ENTITIES">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#ENTITIES"/>
+    </xs:annotation>
+    <xs:restriction>
+      <xs:simpleType>
+        <xs:list itemType="xs:ENTITY"/>
+      </xs:simpleType>
+        <xs:minLength value="1" id="ENTITIES.minLength"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="NMTOKEN" id="NMTOKEN">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#NMTOKEN"/>
+    </xs:annotation>
+    <xs:restriction base="xs:token">
+      <xs:pattern value="\c+" id="NMTOKEN.pattern">
+        <xs:annotation>
+          <xs:documentation source="http://www.w3.org/TR/REC-xml#NT-Nmtoken">
+            pattern matches production 7 from the XML spec
+          </xs:documentation>
+        </xs:annotation>
+      </xs:pattern>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="NMTOKENS" id="NMTOKENS">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasFacet name="length"/>
+        <hfp:hasFacet name="minLength"/>
+        <hfp:hasFacet name="maxLength"/>
+        <hfp:hasFacet name="enumeration"/>
+        <hfp:hasFacet name="whiteSpace"/>
+        <hfp:hasFacet name="pattern"/>
+        <hfp:hasProperty name="ordered" value="false"/>
+        <hfp:hasProperty name="bounded" value="false"/>
+        <hfp:hasProperty name="cardinality" value="countably infinite"/>
+        <hfp:hasProperty name="numeric" value="false"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#NMTOKENS"/>
+    </xs:annotation>
+    <xs:restriction>
+      <xs:simpleType>
+        <xs:list itemType="xs:NMTOKEN"/>
+      </xs:simpleType>
+        <xs:minLength value="1" id="NMTOKENS.minLength"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="Name" id="Name">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#Name"/>
+    </xs:annotation>
+    <xs:restriction base="xs:token">
+      <xs:pattern value="\i\c*" id="Name.pattern">
+        <xs:annotation>
+          <xs:documentation source="http://www.w3.org/TR/REC-xml#NT-Name">
+            pattern matches production 5 from the XML spec
+          </xs:documentation>
+        </xs:annotation>
+      </xs:pattern>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="NCName" id="NCName">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#NCName"/>
+    </xs:annotation>
+    <xs:restriction base="xs:Name">
+      <xs:pattern value="[\i-[:]][\c-[:]]*" id="NCName.pattern">
+        <xs:annotation>
+          <xs:documentation source="http://www.w3.org/TR/REC-xml-names/#NT-NCName">
+            pattern matches production 4 from the Namespaces in XML spec
+          </xs:documentation>
+        </xs:annotation>
+      </xs:pattern>
+    </xs:restriction>
+  </xs:simpleType>
+
+   <xs:simpleType name="ID" id="ID">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#ID"/>
+    </xs:annotation>
+    <xs:restriction base="xs:NCName"/>
+   </xs:simpleType>
+
+   <xs:simpleType name="IDREF" id="IDREF">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#IDREF"/>
+    </xs:annotation>
+    <xs:restriction base="xs:NCName"/>
+   </xs:simpleType>
+
+   <xs:simpleType name="ENTITY" id="ENTITY">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#ENTITY"/>
+    </xs:annotation>
+    <xs:restriction base="xs:NCName"/>
+   </xs:simpleType>
+
+  <xs:simpleType name="integer" id="integer">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#integer"/>
+    </xs:annotation>
+    <xs:restriction base="xs:decimal">
+      <xs:fractionDigits value="0" fixed="true" id="integer.fractionDigits"/>
+      <xs:pattern value="[\-+]?[0-9]+"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="nonPositiveInteger" id="nonPositiveInteger">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#nonPositiveInteger"/>
+    </xs:annotation>
+    <xs:restriction base="xs:integer">
+      <xs:maxInclusive value="0" id="nonPositiveInteger.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="negativeInteger" id="negativeInteger">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#negativeInteger"/>
+    </xs:annotation>
+    <xs:restriction base="xs:nonPositiveInteger">
+      <xs:maxInclusive value="-1" id="negativeInteger.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="long" id="long">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasProperty name="bounded" value="true"/>
+        <hfp:hasProperty name="cardinality" value="finite"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#long"/>
+    </xs:annotation>
+    <xs:restriction base="xs:integer">
+      <xs:minInclusive value="-9223372036854775808" id="long.minInclusive"/>
+      <xs:maxInclusive value="9223372036854775807" id="long.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="int" id="int">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#int"/>
+    </xs:annotation>
+    <xs:restriction base="xs:long">
+      <xs:minInclusive value="-2147483648" id="int.minInclusive"/>
+      <xs:maxInclusive value="2147483647" id="int.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="short" id="short">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#short"/>
+    </xs:annotation>
+    <xs:restriction base="xs:int">
+      <xs:minInclusive value="-32768" id="short.minInclusive"/>
+      <xs:maxInclusive value="32767" id="short.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="byte" id="byte">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#byte"/>
+    </xs:annotation>
+    <xs:restriction base="xs:short">
+      <xs:minInclusive value="-128" id="byte.minInclusive"/>
+      <xs:maxInclusive value="127" id="byte.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="nonNegativeInteger" id="nonNegativeInteger">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#nonNegativeInteger"/>
+    </xs:annotation>
+    <xs:restriction base="xs:integer">
+      <xs:minInclusive value="0" id="nonNegativeInteger.minInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="unsignedLong" id="unsignedLong">
+    <xs:annotation>
+      <xs:appinfo>
+        <hfp:hasProperty name="bounded" value="true"/>
+        <hfp:hasProperty name="cardinality" value="finite"/>
+      </xs:appinfo>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#unsignedLong"/>
+    </xs:annotation>
+    <xs:restriction base="xs:nonNegativeInteger">
+      <xs:maxInclusive value="18446744073709551615" id="unsignedLong.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="unsignedInt" id="unsignedInt">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#unsignedInt"/>
+    </xs:annotation>
+    <xs:restriction base="xs:unsignedLong">
+      <xs:maxInclusive value="4294967295" id="unsignedInt.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="unsignedShort" id="unsignedShort">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#unsignedShort"/>
+    </xs:annotation>
+    <xs:restriction base="xs:unsignedInt">
+      <xs:maxInclusive value="65535" id="unsignedShort.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="unsignedByte" id="unsignedByte">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#unsignedByte"/>
+    </xs:annotation>
+    <xs:restriction base="xs:unsignedShort">
+      <xs:maxInclusive value="255" id="unsignedByte.maxInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="positiveInteger" id="positiveInteger">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#positiveInteger"/>
+    </xs:annotation>
+    <xs:restriction base="xs:nonNegativeInteger">
+      <xs:minInclusive value="1" id="positiveInteger.minInclusive"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+ <xs:simpleType name="derivationControl">
+  <xs:annotation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+  </xs:annotation>
+  <xs:restriction base="xs:NMTOKEN">
+   <xs:enumeration value="substitution"/>
+   <xs:enumeration value="extension"/>
+   <xs:enumeration value="restriction"/>
+   <xs:enumeration value="list"/>
+   <xs:enumeration value="union"/>
+  </xs:restriction>
+ </xs:simpleType>
+
+ <xs:group name="simpleDerivation">
+  <xs:choice>
+    <xs:element ref="xs:restriction"/>
+    <xs:element ref="xs:list"/>
+    <xs:element ref="xs:union"/>
+  </xs:choice>
+ </xs:group>
+
+ <xs:simpleType name="simpleDerivationSet">
+  <xs:annotation>
+   <xs:documentation>
+   #all or (possibly empty) subset of {restriction, union, list}
+   </xs:documentation>
+   <xs:documentation>
+   A utility type, not for public use</xs:documentation>
+  </xs:annotation>
+  <xs:union>
+   <xs:simpleType>
+    <xs:restriction base="xs:token">
+     <xs:enumeration value="#all"/>
+    </xs:restriction>
+   </xs:simpleType>
+   <xs:simpleType>
+    <xs:list>
+     <xs:simpleType>
+      <xs:restriction base="xs:derivationControl">
+       <xs:enumeration value="list"/>
+       <xs:enumeration value="union"/>
+       <xs:enumeration value="restriction"/>
+      </xs:restriction>
+     </xs:simpleType>
+    </xs:list>
+   </xs:simpleType>
+  </xs:union>
+ </xs:simpleType>
+
+  <xs:complexType name="simpleType" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="xs:annotated">
+        <xs:group ref="xs:simpleDerivation"/>
+        <xs:attribute name="final" type="xs:simpleDerivationSet"/>
+        <xs:attribute name="name" type="xs:NCName">
+          <xs:annotation>
+            <xs:documentation>
+              Can be restricted to required or forbidden
+            </xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="topLevelSimpleType">
+    <xs:complexContent>
+      <xs:restriction base="xs:simpleType">
+        <xs:sequence>
+          <xs:element ref="xs:annotation" minOccurs="0"/>
+          <xs:group ref="xs:simpleDerivation"/>
+        </xs:sequence>
+        <xs:attribute name="name" use="required" type="xs:NCName">
+          <xs:annotation>
+            <xs:documentation>
+              Required at the top level
+            </xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+       <xs:anyAttribute namespace="##other" processContents="lax"/>
+      </xs:restriction>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="localSimpleType">
+    <xs:complexContent>
+      <xs:restriction base="xs:simpleType">
+        <xs:sequence>
+          <xs:element ref="xs:annotation" minOccurs="0"/>
+          <xs:group ref="xs:simpleDerivation"/>
+        </xs:sequence>
+        <xs:attribute name="name" use="prohibited">
+          <xs:annotation>
+            <xs:documentation>
+              Forbidden when nested
+            </xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+        <xs:attribute name="final" use="prohibited"/>
+       <xs:anyAttribute namespace="##other" processContents="lax"/>
+      </xs:restriction>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:element name="simpleType" type="xs:topLevelSimpleType" id="simpleType">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-simpleType"/>
+    </xs:annotation>
+  </xs:element>
+
+  <xs:group name="facets">
+   <xs:annotation>
+    <xs:documentation>
+       We should use a substitution group for facets, but
+       that's ruled out because it would allow users to
+       add their own, which we're not ready for yet.
+    </xs:documentation>
+   </xs:annotation>
+   <xs:choice>
+    <xs:element ref="xs:minExclusive"/>
+    <xs:element ref="xs:minInclusive"/>
+    <xs:element ref="xs:maxExclusive"/>
+    <xs:element ref="xs:maxInclusive"/>
+    <xs:element ref="xs:totalDigits"/>
+    <xs:element ref="xs:fractionDigits"/>
+    <xs:element ref="xs:length"/>
+    <xs:element ref="xs:minLength"/>
+    <xs:element ref="xs:maxLength"/>
+    <xs:element ref="xs:enumeration"/>
+    <xs:element ref="xs:whiteSpace"/>
+    <xs:element ref="xs:pattern"/>
+   </xs:choice>
+  </xs:group>
+
+  <xs:group name="simpleRestrictionModel">
+   <xs:sequence>
+    <xs:element name="simpleType" type="xs:localSimpleType" minOccurs="0"/>
+    <xs:group ref="xs:facets" minOccurs="0" maxOccurs="unbounded"/>
+   </xs:sequence>
+  </xs:group>
+
+  <xs:element name="restriction" id="restriction">
+   <xs:complexType>
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-restriction">
+          base attribute and simpleType child are mutually
+          exclusive, but one or other is required
+        </xs:documentation>
+      </xs:annotation>
+      <xs:complexContent>
+        <xs:extension base="xs:annotated">
+         <xs:group ref="xs:simpleRestrictionModel"/>
+         <xs:attribute name="base" type="xs:QName" use="optional"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+
+  <xs:element name="list" id="list">
+   <xs:complexType>
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-list">
+          itemType attribute and simpleType child are mutually
+          exclusive, but one or other is required
+        </xs:documentation>
+      </xs:annotation>
+      <xs:complexContent>
+        <xs:extension base="xs:annotated">
+          <xs:sequence>
+            <xs:element name="simpleType" type="xs:localSimpleType" minOccurs="0"/>
+          </xs:sequence>
+          <xs:attribute name="itemType" type="xs:QName" use="optional"/>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+
+  <xs:element name="union" id="union">
+   <xs:complexType>
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-union">
+          memberTypes attribute must be non-empty or there must be
+          at least one simpleType child
+        </xs:documentation>
+      </xs:annotation>
+      <xs:complexContent>
+        <xs:extension base="xs:annotated">
+          <xs:sequence>
+            <xs:element name="simpleType" type="xs:localSimpleType" minOccurs="0" maxOccurs="unbounded"/>
+          </xs:sequence>
+          <xs:attribute name="memberTypes" use="optional">
+            <xs:simpleType>
+              <xs:list itemType="xs:QName"/>
+            </xs:simpleType>
+          </xs:attribute>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+
+  <xs:complexType name="facet">
+    <xs:complexContent>
+      <xs:extension base="xs:annotated">
+        <xs:attribute name="value" use="required"/>
+        <xs:attribute name="fixed" type="xs:boolean" use="optional" default="false"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+ <xs:complexType name="noFixedFacet">
+  <xs:complexContent>
+   <xs:restriction base="xs:facet">
+    <xs:sequence>
+     <xs:element ref="xs:annotation" minOccurs="0"/>
+    </xs:sequence>
+    <xs:attribute name="fixed" use="prohibited"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+   </xs:restriction>
+  </xs:complexContent>
+ </xs:complexType>
+
+  <xs:element name="minExclusive" id="minExclusive" type="xs:facet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-minExclusive"/>
+    </xs:annotation>
+  </xs:element>
+  <xs:element name="minInclusive" id="minInclusive" type="xs:facet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-minInclusive"/>
+    </xs:annotation>
+  </xs:element>
+
+  <xs:element name="maxExclusive" id="maxExclusive" type="xs:facet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-maxExclusive"/>
+    </xs:annotation>
+  </xs:element>
+  <xs:element name="maxInclusive" id="maxInclusive" type="xs:facet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-maxInclusive"/>
+    </xs:annotation>
+  </xs:element>
+
+  <xs:complexType name="numFacet">
+    <xs:complexContent>
+      <xs:restriction base="xs:facet">
+       <xs:sequence>
+         <xs:element ref="xs:annotation" minOccurs="0"/>
+       </xs:sequence>
+       <xs:attribute name="value" type="xs:nonNegativeInteger" use="required"/>
+       <xs:anyAttribute namespace="##other" processContents="lax"/>
+      </xs:restriction>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:element name="totalDigits" id="totalDigits">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-totalDigits"/>
+    </xs:annotation>
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:restriction base="xs:numFacet">
+          <xs:sequence>
+            <xs:element ref="xs:annotation" minOccurs="0"/>
+          </xs:sequence>
+          <xs:attribute name="value" type="xs:positiveInteger" use="required"/>
+         <xs:anyAttribute namespace="##other" processContents="lax"/>
+        </xs:restriction>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="fractionDigits" id="fractionDigits" type="xs:numFacet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-fractionDigits"/>
+    </xs:annotation>
+  </xs:element>
+
+  <xs:element name="length" id="length" type="xs:numFacet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-length"/>
+    </xs:annotation>
+  </xs:element>
+  <xs:element name="minLength" id="minLength" type="xs:numFacet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-minLength"/>
+    </xs:annotation>
+  </xs:element>
+  <xs:element name="maxLength" id="maxLength" type="xs:numFacet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-maxLength"/>
+    </xs:annotation>
+  </xs:element>
+
+  <xs:element name="enumeration" id="enumeration" type="xs:noFixedFacet">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-enumeration"/>
+    </xs:annotation>
+  </xs:element>
+
+  <xs:element name="whiteSpace" id="whiteSpace">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-whiteSpace"/>
+    </xs:annotation>
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:restriction base="xs:facet">
+          <xs:sequence>
+            <xs:element ref="xs:annotation" minOccurs="0"/>
+          </xs:sequence>
+          <xs:attribute name="value" use="required">
+            <xs:simpleType>
+              <xs:restriction base="xs:NMTOKEN">
+                <xs:enumeration value="preserve"/>
+                <xs:enumeration value="replace"/>
+                <xs:enumeration value="collapse"/>
+              </xs:restriction>
+            </xs:simpleType>
+          </xs:attribute>
+         <xs:anyAttribute namespace="##other" processContents="lax"/>
+        </xs:restriction>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+
+  <xs:element name="pattern" id="pattern">
+    <xs:annotation>
+      <xs:documentation source="http://www.w3.org/TR/xmlschema-2/#element-pattern"/>
+    </xs:annotation>
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:restriction base="xs:noFixedFacet">
+          <xs:sequence>
+            <xs:element ref="xs:annotation" minOccurs="0"/>
+          </xs:sequence>
+          <xs:attribute name="value" type="xs:string" use="required"/>
+         <xs:anyAttribute namespace="##other" processContents="lax"/>
+        </xs:restriction>
+      </xs:complexContent>
+    </xs:complexType>
+  </xs:element>
+
+</xs:schema>
\ No newline at end of file
diff --git a/log4j-docgen/src/test/resources/expected-log4j.xsd b/log4j-docgen/src/test/resources/xsd/log4j.xsd
similarity index 65%
rename from log4j-docgen/src/test/resources/expected-log4j.xsd
rename to log4j-docgen/src/test/resources/xsd/log4j.xsd
index bf7b311..5a6365e 100644
--- a/log4j-docgen/src/test/resources/expected-log4j.xsd
+++ b/log4j-docgen/src/test/resources/xsd/log4j.xsd
@@ -1,7 +1,31 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to you under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<!--
+  ~ This is a test schema used in SchemaGeneratorTest.
+  ~ Unlike this file the DefaultSchemaGenerator strips whitespace.
+  -->
 <schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:log4j="http://logging.apache.org/log4j/2.0/config" elementFormDefault="qualified" targetNamespace="http://logging.apache.org/log4j/2.0/config">
   <element type="log4j:org.apache.logging.log4j.core.config.Configuration" name="Configuration"/>
   <simpleType name="org.apache.logging.log4j.Level">
+    <annotation>
+      <documentation>Represents a logging level.
+**Note**: the Log4j API supports custom levels, the following list contains only the standard ones.</documentation>
+    </annotation>
     <restriction base="string">
       <enumeration value="OFF">
         <annotation>
@@ -46,6 +70,9 @@
     </restriction>
   </simpleType>
   <simpleType name="org.apache.logging.log4j.core.Filter.Result">
+    <annotation>
+      <documentation>The result that can returned from a filter method call.</documentation>
+    </annotation>
     <restriction base="string">
       <enumeration value="ACCEPT">
         <annotation>
@@ -65,6 +92,9 @@
     </restriction>
   </simpleType>
   <simpleType name="org.apache.logging.log4j.core.appender.ConsoleAppender.Target">
+    <annotation>
+      <documentation>Specifies the target of a console appender.</documentation>
+    </annotation>
     <restriction base="string">
       <enumeration value="SYSTEM_OUT">
         <annotation>
@@ -79,6 +109,9 @@
     </restriction>
   </simpleType>
   <complexType name="org.apache.logging.log4j.core.appender.ConsoleAppender">
+    <annotation>
+      <documentation>Write log events to the console.</documentation>
+    </annotation>
     <sequence>
       <group ref="log4j:org.apache.logging.log4j.core.Filter.group" minOccurs="0">
         <annotation>
@@ -125,8 +158,32 @@ buffering is disabled regardless of the value of `bufferedIo`.</documentation>
       </annotation>
     </attribute>
   </complexType>
-  <complexType name="org.apache.logging.log4j.core.config.AppenderRef"></complexType>
+  <complexType name="org.apache.logging.log4j.core.config.AppenderRef">
+    <annotation>
+      <documentation>Reference to an appender defined in the `Appenders` section.</documentation>
+    </annotation>
+    <sequence>
+      <group ref="log4j:org.apache.logging.log4j.core.Filter.group" minOccurs="0">
+        <annotation>
+          <documentation>The filter to use.</documentation>
+        </annotation>
+      </group>
+    </sequence>
+    <attribute name="ref" type="string">
+      <annotation>
+        <documentation>The name of an appender.</documentation>
+      </annotation>
+    </attribute>
+    <attribute name="level" type="log4j:org.apache.logging.log4j.Level">
+      <annotation>
+        <documentation>The level to filter against.</documentation>
+      </annotation>
+    </attribute>
+  </complexType>
   <complexType name="org.apache.logging.log4j.core.config.AppendersPlugin">
+    <annotation>
+      <documentation>A wrapper for a list of appenders.</documentation>
+    </annotation>
     <sequence>
       <group ref="log4j:org.apache.logging.log4j.core.Appender.group" minOccurs="0" maxOccurs="unbounded">
         <annotation>
@@ -136,7 +193,33 @@ buffering is disabled regardless of the value of `bufferedIo`.</documentation>
     </sequence>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.config.Configuration">
-    <sequence></sequence>
+    <annotation>
+      <documentation>A Log4j 2.x configuration contains many components, two of them `Appenders` and `Loggers` are required.</documentation>
+    </annotation>
+    <sequence>
+      <element name="Properties" type="log4j:org.apache.logging.log4j.core.config.PropertiesPlugin" minOccurs="0">
+        <annotation>
+          <documentation>Wrapper element for a list of properties.
+
+If present, this element must be the **first** child of the configuration.</documentation>
+        </annotation>
+      </element>
+      <element name="Appenders" type="log4j:org.apache.logging.log4j.core.config.AppendersPlugin">
+        <annotation>
+          <documentation>Wrapper element for a list of appenders.</documentation>
+        </annotation>
+      </element>
+      <element name="CustomLevels" type="log4j:org.apache.logging.log4j.core.config.CustomLevels" minOccurs="0">
+        <annotation>
+          <documentation>Wrapper element for a list of custom levels.</documentation>
+        </annotation>
+      </element>
+      <element name="Loggers" type="log4j:org.apache.logging.log4j.core.config.LoggersPlugin" minOccurs="0">
+        <annotation>
+          <documentation>Wrapper element for a list of logger configurations.</documentation>
+        </annotation>
+      </element>
+    </sequence>
     <attribute name="advertiser" type="string">
       <annotation>
         <documentation>If set it should contain the name of an `Advertiser` plugin (cf.
@@ -205,6 +288,9 @@ This only applies to classes configured by `StatusConfiguration#setVerboseClasse
     </attribute>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.config.CustomLevelConfig">
+    <annotation>
+      <documentation>Configures a custom level.</documentation>
+    </annotation>
     <attribute name="name" type="string">
       <annotation>
         <documentation>The name of the level.</documentation>
@@ -217,10 +303,27 @@ This only applies to classes configured by `StatusConfiguration#setVerboseClasse
     </attribute>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.config.CustomLevels">
-    <sequence></sequence>
+    <annotation>
+      <documentation>A wrapper for a list of custom level configurations.</documentation>
+    </annotation>
+    <sequence>
+      <element name="CustomLevel" type="log4j:org.apache.logging.log4j.core.config.CustomLevelConfig" minOccurs="0" maxOccurs="unbounded">
+        <annotation>
+          <documentation>A list of custom level configurations.</documentation>
+        </annotation>
+      </element>
+    </sequence>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.config.LoggerConfig">
+    <annotation>
+      <documentation>Configures a particular logger</documentation>
+    </annotation>
     <sequence>
+      <group ref="log4j:org.apache.logging.log4j.core.config.AppenderRef.group" minOccurs="0" maxOccurs="unbounded">
+        <annotation>
+          <documentation>A list of appenders to use with this logger.</documentation>
+        </annotation>
+      </group>
       <group ref="log4j:org.apache.logging.log4j.core.Filter.group" minOccurs="0">
         <annotation>
           <documentation>A filter to filter events, before calling the appenders.</documentation>
@@ -239,7 +342,15 @@ This only applies to classes configured by `StatusConfiguration#setVerboseClasse
     </attribute>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.config.LoggerConfig.RootLogger">
+    <annotation>
+      <documentation>Configures the root logger</documentation>
+    </annotation>
     <sequence>
+      <group ref="log4j:org.apache.logging.log4j.core.config.AppenderRef.group" minOccurs="0" maxOccurs="unbounded">
+        <annotation>
+          <documentation>A list of appenders to use with this logger.</documentation>
+        </annotation>
+      </group>
       <group ref="log4j:org.apache.logging.log4j.core.Filter.group" minOccurs="0">
         <annotation>
           <documentation>A filter to filter events, before calling the appenders.</documentation>
@@ -253,6 +364,9 @@ This only applies to classes configured by `StatusConfiguration#setVerboseClasse
     </attribute>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.config.LoggersPlugin">
+    <annotation>
+      <documentation>A wrapper for a list of logger configurations.</documentation>
+    </annotation>
     <sequence>
       <group ref="log4j:org.apache.logging.log4j.core.config.LoggerConfig.group" minOccurs="0" maxOccurs="unbounded">
         <annotation>
@@ -262,9 +376,21 @@ This only applies to classes configured by `StatusConfiguration#setVerboseClasse
     </sequence>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.config.PropertiesPlugin">
-    <sequence></sequence>
+    <annotation>
+      <documentation>A wrapper for a list of properties.</documentation>
+    </annotation>
+    <sequence>
+      <element name="Property" type="log4j:org.apache.logging.log4j.core.config.Property" minOccurs="0" maxOccurs="unbounded">
+        <annotation>
+          <documentation>A list of properties.</documentation>
+        </annotation>
+      </element>
+    </sequence>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.config.Property">
+    <annotation>
+      <documentation>Represents a key/value pair in the configuration.</documentation>
+    </annotation>
     <attribute name="name" type="string">
       <annotation>
         <documentation>Name of the property.</documentation>
@@ -277,6 +403,11 @@ This only applies to classes configured by `StatusConfiguration#setVerboseClasse
     </attribute>
   </complexType>
   <complexType name="org.apache.logging.log4j.core.filter.BurstFilter">
+    <annotation>
+      <documentation>The BurstFilter is a logging filter that regulates logging traffic.
+Use this filter when you want to control the mean rate and maximum burst of log statements that can be
+sent to an appender.</documentation>
+    </annotation>
     <attribute name="onMatch" type="log4j:org.apache.logging.log4j.core.Filter.Result">
       <annotation>
         <documentation>Action to perform if the filter matches.</documentation>
@@ -305,6 +436,24 @@ average rate.</documentation>
       </annotation>
     </attribute>
   </complexType>
+  <complexType name="org.apache.logging.log4j.core.layout.PatternLayout">
+    <annotation>
+      <documentation>A flexible layout configurable with pattern string.
+
+The goal of this class is to {@link org.apache.logging.log4j.core.Layout#toByteArray format} a
+{@link LogEvent} and return the results.
+The format of the result depends on the _conversion pattern_.
+
+The conversion pattern is closely related to the conversion pattern of the printf function in C.
+A conversion pattern is composed of literal text and format control expressions called _conversion
+specifiers_.</documentation>
+    </annotation>
+    <attribute name="pattern" type="string">
+      <annotation>
+        <documentation>The pattern to use to format log events.</documentation>
+      </annotation>
+    </attribute>
+  </complexType>
   <group name="org.apache.logging.log4j.core.Appender.group">
     <choice>
       <element name="Console" type="log4j:org.apache.logging.log4j.core.appender.ConsoleAppender"/>
@@ -316,12 +465,20 @@ average rate.</documentation>
     </choice>
   </group>
   <group name="org.apache.logging.log4j.core.Layout.group">
-    <choice></choice>
+    <choice>
+      <element name="PatternLayout" type="log4j:org.apache.logging.log4j.core.layout.PatternLayout"/>
+    </choice>
+  </group>
+  <group name="org.apache.logging.log4j.core.config.AppenderRef.group">
+    <choice>
+      <element name="AppenderRef" type="log4j:org.apache.logging.log4j.core.config.AppenderRef"/>
+      <element name="appender-ref" type="log4j:org.apache.logging.log4j.core.config.AppenderRef"/>
+    </choice>
   </group>
   <group name="org.apache.logging.log4j.core.config.LoggerConfig.group">
     <choice>
-      <element name="Root" type="log4j:org.apache.logging.log4j.core.config.LoggerConfig.RootLogger"/>
       <element name="Logger" type="log4j:org.apache.logging.log4j.core.config.LoggerConfig"/>
+      <element name="Root" type="log4j:org.apache.logging.log4j.core.config.LoggerConfig.RootLogger"/>
     </choice>
   </group>
 </schema>
\ No newline at end of file
diff --git a/log4j-docgen/src/test/resources/xsd/xml.xsd b/log4j-docgen/src/test/resources/xsd/xml.xsd
new file mode 100644
index 0000000..bd291f3
--- /dev/null
+++ b/log4j-docgen/src/test/resources/xsd/xml.xsd
@@ -0,0 +1,286 @@
+<?xml version='1.0'?>
+<?xml-stylesheet href="../../2008/09/xsd.xsl" type="text/xsl"?>
+<xs:schema targetNamespace="http://www.w3.org/XML/1998/namespace" 
+  xmlns:xs="http://www.w3.org/2001/XMLSchema" 
+  xmlns   ="http://www.w3.org/1999/xhtml"
+  xml:lang="en">
+
+ <xs:annotation>
+  <xs:documentation>
+   <div>
+    <h1>About the XML namespace</h1>
+
+    <div class="bodytext">
+     <p>
+      This schema document describes the XML namespace, in a form
+      suitable for import by other schema documents.
+     </p>
+     <p>
+      See <a href="http://www.w3.org/XML/1998/namespace.html">
+      http://www.w3.org/XML/1998/namespace.html</a> and
+      <a href="http://www.w3.org/TR/REC-xml">
+      http://www.w3.org/TR/REC-xml</a> for information 
+      about this namespace.
+     </p>
+     <p>
+      Note that local names in this namespace are intended to be
+      defined only by the World Wide Web Consortium or its subgroups.
+      The names currently defined in this namespace are listed below.
+      They should not be used with conflicting semantics by any Working
+      Group, specification, or document instance.
+     </p>
+     <p>   
+      See further below in this document for more information about <a
+      href="#usage">how to refer to this schema document from your own
+      XSD schema documents</a> and about <a href="#nsversioning">the
+      namespace-versioning policy governing this schema document</a>.
+     </p>
+    </div>
+   </div>
+  </xs:documentation>
+ </xs:annotation>
+
+ <xs:attribute name="lang">
+  <xs:annotation>
+   <xs:documentation>
+    <div>
+     
+      <h3>lang (as an attribute name)</h3>
+      <p>
+       denotes an attribute whose value
+       is a language code for the natural language of the content of
+       any element; its value is inherited.  This name is reserved
+       by virtue of its definition in the XML specification.</p>
+     
+    </div>
+    <div>
+     <h4>Notes</h4>
+     <p>
+      Attempting to install the relevant ISO 2- and 3-letter
+      codes as the enumerated possible values is probably never
+      going to be a realistic possibility.  
+     </p>
+     <p>
+      See BCP 47 at <a href="http://www.rfc-editor.org/rfc/bcp/bcp47.txt">
+       http://www.rfc-editor.org/rfc/bcp/bcp47.txt</a>
+      and the IANA language subtag registry at
+      <a href="http://www.iana.org/assignments/language-subtag-registry">
+       http://www.iana.org/assignments/language-subtag-registry</a>
+      for further information.
+     </p>
+     <p>
+      The union allows for the 'un-declaration' of xml:lang with
+      the empty string.
+     </p>
+    </div>
+   </xs:documentation>
+  </xs:annotation>
+  <xs:simpleType>
+   <xs:union memberTypes="xs:language">
+    <xs:simpleType>    
+     <xs:restriction base="xs:string">
+      <xs:enumeration value=""/>
+     </xs:restriction>
+    </xs:simpleType>
+   </xs:union>
+  </xs:simpleType>
+ </xs:attribute>
+
+ <xs:attribute name="space">
+  <xs:annotation>
+   <xs:documentation>
+    <div>
+     
+      <h3>space (as an attribute name)</h3>
+      <p>
+       denotes an attribute whose
+       value is a keyword indicating what whitespace processing
+       discipline is intended for the content of the element; its
+       value is inherited.  This name is reserved by virtue of its
+       definition in the XML specification.</p>
+     
+    </div>
+   </xs:documentation>
+  </xs:annotation>
+  <xs:simpleType>
+   <xs:restriction base="xs:NCName">
+    <xs:enumeration value="default"/>
+    <xs:enumeration value="preserve"/>
+   </xs:restriction>
+  </xs:simpleType>
+ </xs:attribute>
+ 
+ <xs:attribute name="base" type="xs:anyURI"> <xs:annotation>
+   <xs:documentation>
+    <div>
+     
+      <h3>base (as an attribute name)</h3>
+      <p>
+       denotes an attribute whose value
+       provides a URI to be used as the base for interpreting any
+       relative URIs in the scope of the element on which it
+       appears; its value is inherited.  This name is reserved
+       by virtue of its definition in the XML Base specification.</p>
+     
+     <p>
+      See <a
+      href="http://www.w3.org/TR/xmlbase/">http://www.w3.org/TR/xmlbase/</a>
+      for information about this attribute.
+     </p>
+    </div>
+   </xs:documentation>
+  </xs:annotation>
+ </xs:attribute>
+ 
+ <xs:attribute name="id" type="xs:ID">
+  <xs:annotation>
+   <xs:documentation>
+    <div>
+     
+      <h3>id (as an attribute name)</h3> 
+      <p>
+       denotes an attribute whose value
+       should be interpreted as if declared to be of type ID.
+       This name is reserved by virtue of its definition in the
+       xml:id specification.</p>
+     
+     <p>
+      See <a
+      href="http://www.w3.org/TR/xml-id/">http://www.w3.org/TR/xml-id/</a>
+      for information about this attribute.
+     </p>
+    </div>
+   </xs:documentation>
+  </xs:annotation>
+ </xs:attribute>
+
+ <xs:attributeGroup name="specialAttrs">
+  <xs:attribute ref="xml:base"/>
+  <xs:attribute ref="xml:lang"/>
+  <xs:attribute ref="xml:space"/>
+  <xs:attribute ref="xml:id"/>
+ </xs:attributeGroup>
+
+ <xs:annotation>
+  <xs:documentation>
+   <div>
+   
+    <h3>Father (in any context at all)</h3> 
+
+    <div class="bodytext">
+     <p>
+      denotes Jon Bosak, the chair of 
+      the original XML Working Group.  This name is reserved by 
+      the following decision of the W3C XML Plenary and 
+      XML Coordination groups:
+     </p>
+     <blockquote>
+       <p>
+	In appreciation for his vision, leadership and
+	dedication the W3C XML Plenary on this 10th day of
+	February, 2000, reserves for Jon Bosak in perpetuity
+	the XML name "xml:Father".
+       </p>
+     </blockquote>
+    </div>
+   </div>
+  </xs:documentation>
+ </xs:annotation>
+
+ <xs:annotation>
+  <xs:documentation>
+   <div xml:id="usage" id="usage">
+    <h2><a name="usage">About this schema document</a></h2>
+
+    <div class="bodytext">
+     <p>
+      This schema defines attributes and an attribute group suitable
+      for use by schemas wishing to allow <code>xml:base</code>,
+      <code>xml:lang</code>, <code>xml:space</code> or
+      <code>xml:id</code> attributes on elements they define.
+     </p>
+     <p>
+      To enable this, such a schema must import this schema for
+      the XML namespace, e.g. as follows:
+     </p>
+     <pre>
+          &lt;schema . . .>
+           . . .
+           &lt;import namespace="http://www.w3.org/XML/1998/namespace"
+                      schemaLocation="http://www.w3.org/2001/xml.xsd"/>
+     </pre>
+     <p>
+      or
+     </p>
+     <pre>
+           &lt;import namespace="http://www.w3.org/XML/1998/namespace"
+                      schemaLocation="http://www.w3.org/2009/01/xml.xsd"/>
+     </pre>
+     <p>
+      Subsequently, qualified reference to any of the attributes or the
+      group defined below will have the desired effect, e.g.
+     </p>
+     <pre>
+          &lt;type . . .>
+           . . .
+           &lt;attributeGroup ref="xml:specialAttrs"/>
+     </pre>
+     <p>
+      will define a type which will schema-validate an instance element
+      with any of those attributes.
+     </p>
+    </div>
+   </div>
+  </xs:documentation>
+ </xs:annotation>
+
+ <xs:annotation>
+  <xs:documentation>
+   <div id="nsversioning" xml:id="nsversioning">
+    <h2><a name="nsversioning">Versioning policy for this schema document</a></h2>
+    <div class="bodytext">
+     <p>
+      In keeping with the XML Schema WG's standard versioning
+      policy, this schema document will persist at
+      <a href="http://www.w3.org/2009/01/xml.xsd">
+       http://www.w3.org/2009/01/xml.xsd</a>.
+     </p>
+     <p>
+      At the date of issue it can also be found at
+      <a href="http://www.w3.org/2001/xml.xsd">
+       http://www.w3.org/2001/xml.xsd</a>.
+     </p>
+     <p>
+      The schema document at that URI may however change in the future,
+      in order to remain compatible with the latest version of XML
+      Schema itself, or with the XML namespace itself.  In other words,
+      if the XML Schema or XML namespaces change, the version of this
+      document at <a href="http://www.w3.org/2001/xml.xsd">
+       http://www.w3.org/2001/xml.xsd 
+      </a> 
+      will change accordingly; the version at 
+      <a href="http://www.w3.org/2009/01/xml.xsd">
+       http://www.w3.org/2009/01/xml.xsd 
+      </a> 
+      will not change.
+     </p>
+     <p>
+      Previous dated (and unchanging) versions of this schema 
+      document are at:
+     </p>
+     <ul>
+      <li><a href="http://www.w3.org/2009/01/xml.xsd">
+	http://www.w3.org/2009/01/xml.xsd</a></li>
+      <li><a href="http://www.w3.org/2007/08/xml.xsd">
+	http://www.w3.org/2007/08/xml.xsd</a></li>
+      <li><a href="http://www.w3.org/2004/10/xml.xsd">
+	http://www.w3.org/2004/10/xml.xsd</a></li>
+      <li><a href="http://www.w3.org/2001/03/xml.xsd">
+	http://www.w3.org/2001/03/xml.xsd</a></li>
+     </ul>
+    </div>
+   </div>
+  </xs:documentation>
+ </xs:annotation>
+
+</xs:schema>