diff --git a/Doc/Common/snippets.xml b/Doc/Common/snippets.xml
index d1691c16919e00760a6a9100fb3009cbc022ea00..26b7ce1a00114eadd5fc63f3e6095e02b504396d 100644
--- a/Doc/Common/snippets.xml
+++ b/Doc/Common/snippets.xml
@@ -28,11 +28,10 @@
<title/>
<programlisting language="none">http://www.utf8-chartable.de/unicode-utf8-table.pl?start=9472&unicodeinhtml=dec
-<emphasis role="red">
+
<emphasis role="red">â–²</emphasis>
-◀─┼─▶</emphasis>
+<emphasis role="red">◀─┼─▶</emphasis>
<emphasis role="red">â–¼</emphasis>
-
<emphasis role="red">┌──â”</emphasis>
<emphasis role="red">│</emphasis> <emphasis role="red">│</emphasis>
<emphasis role="red">└</emphasis> <emphasis role="red">┘</emphasis>
diff --git a/Doc/Sda1/Ref/Memo/V70_final/Test/duplicateContactId.xml b/Doc/Sda1/Ref/Memo/V70_final/Test/duplicateContactId.xml
new file mode 100644
index 0000000000000000000000000000000000000000..2967b0b3d7ae708fad6e172e0dc2c90156adb4bf
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/V70_final/Test/duplicateContactId.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<memo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../memo.xsd"
+ date="2014-09-24" priority="medium">
+ <contacts>
+ <entry id="10">
+ <commonName>Susan Sonntag</commonName>
+ <tel>+44332232323</tel>
+ <email>susan23@evermail.com</email>
+ <email>susa112@private.uk</email>
+ </entry>
+ <entry id="20">
+ <commonName>John Balber</commonName>
+ <email>balber@hatebook.com</email>
+ <tel>017297123232</tel>
+ <email>home@balber.org</email>
+ </entry>
+ <entry id="20"> <!-- Invalid: duplicate contact @id value -->
+ <commonName>Mary Palmer</commonName>
+ <tel>017297123232</tel>
+ </entry>
+ </contacts>
+
+ <from contact="10"/>
+ <to contact="20"/>
+ <subject>Best whishes</subject>
+ <content>
+ <para>Have a nice trip!</para>
+ <para>I feel <emphasis>very</emphasis> happy for you. Don't miss <link href="https://www.wikipedia.org">sharing your results</link>.</para>
+ </content>
+</memo>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Memo/V70_final/Test/duplicateRecipient.xml b/Doc/Sda1/Ref/Memo/V70_final/Test/duplicateRecipient.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e883dfcd568e39892c644490d2648c4130dd9533
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/V70_final/Test/duplicateRecipient.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<memo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../memo.xsd"
+ date="2014-09-24" priority="medium">
+ <contacts>
+ <entry id="10">
+ <commonName>Susan Sonntag</commonName>
+ <tel>+44332232323</tel>
+ <email>susan23@evermail.com</email>
+ <email>susa112@private.uk</email>
+ </entry>
+ <entry id="20">
+ <commonName>John Balber</commonName>
+ <email>balber@hatebook.com</email>
+ <tel>017297123232</tel>
+ <email>home@balber.org</email>
+ </entry>
+ <entry id="25">
+ <commonName>Mary Palmer</commonName>
+ <tel>017297123232</tel>
+ </entry>
+ </contacts>
+
+ <from contact="100"/> <!-- invalid: no such sender id -->
+ <to contact="20"/>
+ <to contact="25"/>
+ <subject>Best whishes</subject>
+ <content>
+ <para>Have a nice trip!</para>
+ <para>I feel <emphasis>very</emphasis> happy for you. Don't miss <link href="https://www.wikipedia.org">sharing your results</link>.</para>
+ </content>
+</memo>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Memo/V70_final/Test/email.xml b/Doc/Sda1/Ref/Memo/V70_final/Test/email.xml
new file mode 100644
index 0000000000000000000000000000000000000000..725ad1acdbd3ef9cdb4b0a3a73aaa3e1a431da08
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/V70_final/Test/email.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<contacts xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:noNamespaceSchemaLocation="../memo.xsd">
+
+ <entry id="10">
+ <commonName>Susan Sonntag</commonName>
+ <tel>+44332232323</tel>
+ <email>susan23@evermail.com</email><!-- valid -->
+ <email>susan23</email><!-- invalid: No »@« sign -->
+ <email>susan23@.evermail.com</email><!-- invalid: No ».« immediately after »@« sign -->
+ <email>susan23@evermail@com</email><!-- invalid: no second »@« -->
+ </entry>
+
+</contacts>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Memo/V70_final/Test/missingAddress.xml b/Doc/Sda1/Ref/Memo/V70_final/Test/missingAddress.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e44a96fe5622dd50e533ec869d52ee97a414f940
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/V70_final/Test/missingAddress.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<contacts xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:noNamespaceSchemaLocation="../memo.xsd">
+
+ <entry id="10">
+ <commonName>Susan Sonntag</commonName>
+ <!-- invalid: neither email nor phone provided. -->
+ </entry>
+
+</contacts>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Memo/V70_final/Test/noSuchSender.xml b/Doc/Sda1/Ref/Memo/V70_final/Test/noSuchSender.xml
new file mode 100644
index 0000000000000000000000000000000000000000..f02ea3e48eab90b65a5d64e499a98e931cb6488e
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/V70_final/Test/noSuchSender.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<memo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../memo.xsd"
+ date="2014-09-24" priority="medium">
+ <contacts>
+ <entry id="10">
+ <commonName>Susan Sonntag</commonName>
+ <tel>+44332232323</tel>
+ <email>susan23@evermail.com</email>
+ <email>susa112@private.uk</email>
+ </entry>
+ <entry id="20">
+ <commonName>John Balber</commonName>
+ <email>balber@hatebook.com</email>
+ <tel>017297123232</tel>
+ <email>home@balber.org</email>
+ </entry>
+ <entry id="25">
+ <commonName>Mary Palmer</commonName>
+ <tel>017297123232</tel>
+ </entry>
+ </contacts>
+
+ <from contact="10"/>
+ <to contact="20"/>
+ <to contact="20"/> <!-- invalid: duplicate recipient -->
+ <subject>Best whishes</subject>
+ <content>
+ <para>Have a nice trip!</para>
+ <para>I feel <emphasis>very</emphasis> happy for you. Don't miss <link href="https://www.wikipedia.org">sharing your results</link>.</para>
+ </content>
+</memo>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Memo/V70_final/Test/tel.xml b/Doc/Sda1/Ref/Memo/V70_final/Test/tel.xml
new file mode 100644
index 0000000000000000000000000000000000000000..404e0929a12bf3d7d3087e766a45820509f848af
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/V70_final/Test/tel.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<contacts xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:noNamespaceSchemaLocation="../memo.xsd">
+
+ <entry id="10">
+ <commonName>Susan Sonntag</commonName>
+ <tel>+44332232323</tel> <!-- Valid -->
+ <tel>+044332232323</tel> <!-- Invalid: No »0« immediately after »+« -->
+ <tel>+44 332232323</tel> <!-- Invalid: No spaces-->
+ <tel>+4</tel> <!-- Invalid: One missing digit-->
+ </entry>
+
+</contacts>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Memo/V70_final/memo.xsd b/Doc/Sda1/Ref/Memo/V70_final/memo.xsd
new file mode 100644
index 0000000000000000000000000000000000000000..916a23e05ed4106854fd54a6bc19f89a9bf67eff
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/V70_final/memo.xsd
@@ -0,0 +1,120 @@
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+ xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning" elementFormDefault="qualified"
+ vc:minVersion="1.0" vc:maxVersion="1.1">
+
+<!-- Data types -->
+ <xs:simpleType name="Priority">
+ <xs:annotation>
+ <xs:documentation>A memo may have different priorities</xs:documentation>
+ </xs:annotation>
+ <xs:restriction base="xs:string">
+ <xs:enumeration value="low"/>
+ <xs:enumeration value="medium"/>
+ <xs:enumeration value="high"/>
+ </xs:restriction>
+ </xs:simpleType>
+
+ <xs:simpleType name="emailType">
+ <xs:restriction base="xs:string">
+ <xs:pattern value="[_\-a-zA-Z0-9\.\+]+@[a-zA-Z0-9](\.?[\-a-zA-Z0-9]*[a-zA-Z0-9])*"/>
+ </xs:restriction>
+ </xs:simpleType>
+
+ <xs:simpleType name="telType">
+ <xs:restriction base="xs:string">
+ <xs:pattern value="([+][1-9][0-9])?[0-9]+"/>
+ </xs:restriction>
+ </xs:simpleType>
+
+<!-- Elements -->
+ <xs:element name="entry">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element type="xs:string" name="commonName"/>
+ <xs:choice maxOccurs="unbounded">
+ <xs:element name="email" type="emailType"/>
+ <xs:element name="tel" type="telType"/>
+ </xs:choice>
+ </xs:sequence>
+ <xs:attribute name="id" type="xs:int" use="required"/>
+ </xs:complexType>
+ </xs:element>
+
+ <xs:element name="contacts">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element ref="entry" maxOccurs="unbounded"/>
+ </xs:sequence>
+ </xs:complexType>
+ </xs:element>
+
+
+ <xs:element name="from">
+ <xs:complexType>
+ <xs:attribute name="contact" type="xs:int" use="required"/>
+ </xs:complexType>
+ </xs:element>
+
+ <xs:element name="to">
+ <xs:complexType>
+ <xs:attribute name="contact" type="xs:int" use="required"/>
+ </xs:complexType>
+ </xs:element>
+
+ <xs:element name="link" >
+ <xs:complexType>
+ <xs:simpleContent>
+ <xs:extension base="xs:string">
+ <xs:attribute name="href" type="xs:anyURI"/>
+ </xs:extension>
+ </xs:simpleContent>
+ </xs:complexType>
+ </xs:element>
+
+ <xs:element name="para">
+ <xs:complexType mixed="true">
+ <xs:sequence minOccurs="0" maxOccurs="unbounded">
+ <xs:choice>
+ <xs:element name="emphasis" type="xs:string" />
+ <xs:element ref="link"/>
+ </xs:choice>
+ </xs:sequence>
+ </xs:complexType>
+ </xs:element>
+
+ <xs:element name="content">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element ref="para" maxOccurs="unbounded"/>
+ </xs:sequence>
+ </xs:complexType>
+ </xs:element>
+
+ <xs:element name="memo">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element ref="contacts"/>
+ <xs:element ref="from" />
+ <xs:element ref="to" minOccurs="1" maxOccurs="unbounded"/>
+ <xs:element name="subject" type="xs:string"/>
+ <xs:element ref="content"/>
+ </xs:sequence>
+ <xs:attribute name="date" type="xs:date" use="required"/>
+ <xs:attribute name="priority" type="Priority" use="optional"/>
+ </xs:complexType>
+ <xs:key name="uniqueContactId">
+ <xs:selector xpath="contacts/entry"/>
+ <xs:field xpath="@id"/>
+ </xs:key>
+ <xs:key name="uniqueRecipientId">
+ <xs:selector xpath="to"/>
+ <xs:field xpath="@contact"/>
+ </xs:key>
+
+ <xs:keyref refer="uniqueContactId" name="contactReference">
+ <xs:selector xpath="from|to"/>
+ <xs:field xpath="@contact"></xs:field>
+ </xs:keyref>
+ </xs:element>
+
+</xs:schema>
diff --git a/Doc/Sda1/Ref/Memo/V70_final/message.xml b/Doc/Sda1/Ref/Memo/V70_final/message.xml
new file mode 100644
index 0000000000000000000000000000000000000000..6a4c7d1292f9f0bd0f28a6134b568acbf99aa24f
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/V70_final/message.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<memo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="memo.xsd"
+ date="2014-09-24" priority="medium">
+ <contacts>
+ <entry id="10">
+ <commonName>Susan Sonntag</commonName>
+ <tel>+44332232323</tel>
+ <email>susan23@evermail.com</email>
+ <email>susa112@private.uk</email>
+ </entry>
+ <entry id="20">
+ <commonName>John Balber</commonName>
+ <email>balber@hatebook.com</email>
+ <tel>017297123232</tel>
+ <email>home@balber.org</email>
+ </entry>
+ <entry id="25">
+ <commonName>Mary Palmer</commonName>
+ <tel>017297123232</tel>
+ </entry>
+ </contacts>
+
+ <from contact="10"/>
+ <to contact="20"/>
+ <to contact="25"/>
+ <subject>Best whishes</subject>
+ <content>
+ <para>Have a nice trip!</para>
+ <para>I feel <emphasis>very</emphasis> happy for you. Don't miss <link href="https://www.wikipedia.org">sharing your results</link>.</para>
+ </content>
+</memo>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Xmlschema/P/MemoSqlModel/schema.sql b/Doc/Sda1/Ref/Memo/schema.sql
similarity index 100%
rename from Doc/Sda1/Ref/Xmlschema/P/MemoSqlModel/schema.sql
rename to Doc/Sda1/Ref/Memo/schema.sql
diff --git a/Doc/Sda1/Ref/Memo/src/main/java/de/hdm_stuttgart/mi/sda1/App.java b/Doc/Sda1/Ref/Memo/src/main/java/de/hdm_stuttgart/mi/sda1/App.java
new file mode 100644
index 0000000000000000000000000000000000000000..127c25b4b38fca2392b9456dbce811fb34ff562a
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/src/main/java/de/hdm_stuttgart/mi/sda1/App.java
@@ -0,0 +1,29 @@
+package de.hdm_stuttgart.mi.sda1;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+
+/**
+ * A simple http://logging.apache.org/log4j/2.x demo,
+ * see file resources/log4j2.xml for configuration options
+ * and A1.log containing debugging output.
+ */
+
+public class App {
+ private static Logger log = LogManager.getLogger(App.class);
+
+ /**
+ * Your application's main entry point.
+ *
+ * @param args Yet unused
+ */
+ public static void main( String[] args ) {
+ System.out.println( "Hello World!" );
+
+ log.debug("With respect to logging you may want to configure file ");
+ log.debug("'src/main/resources/log4j2.xml' to suit your needs.");
+ log.debug("This config file 'log4j2.xml' will result in 'A1.log'");
+ log.debug("file containing logging output as well.");
+ }
+}
diff --git a/Doc/Sda1/Ref/Memo/src/main/resources/log4j2.xml b/Doc/Sda1/Ref/Memo/src/main/resources/log4j2.xml
new file mode 100644
index 0000000000000000000000000000000000000000..eb20b442affff60c0ad812f843ef54a2a0a9c37f
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/src/main/resources/log4j2.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration>
+ <Appenders>
+ <File name="A1" fileName="A1.log" append="false">
+ <PatternLayout pattern="%t %-5p %c{2} - %m%n"/>
+ </File>
+ <Console name="STDOUT" target="SYSTEM_OUT">
+ <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
+ </Console>
+ </Appenders>
+ <Loggers>
+
+ <!-- You my want to define class or package level per-logger rules -->
+ <Logger name="de.hdm_stuttgart.mi.sda1.App" level="debug">
+ <AppenderRef ref="A1"/>
+ </Logger>
+ <Root level="info">
+ <AppenderRef ref="STDOUT"/>
+ </Root>
+ </Loggers>
+</Configuration>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Memo/src/test/java/de/hdm_stuttgart/mi/sda1/AppTest.java b/Doc/Sda1/Ref/Memo/src/test/java/de/hdm_stuttgart/mi/sda1/AppTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..7c4b69e38e51c0f55a2e5203edc2da83368bac82
--- /dev/null
+++ b/Doc/Sda1/Ref/Memo/src/test/java/de/hdm_stuttgart/mi/sda1/AppTest.java
@@ -0,0 +1,17 @@
+package de.hdm_stuttgart.mi.sda1;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest {
+ /**
+ * Dummy test method
+ */
+ @Test
+ public void testApp() {
+ Assert.assertTrue( true );
+ }
+}
diff --git a/Doc/Sda1/Ref/Organizer/src/main/java/de/hdm_stuttgart/mi/sda1/App.java b/Doc/Sda1/Ref/Organizer/src/main/java/de/hdm_stuttgart/mi/sda1/App.java
new file mode 100644
index 0000000000000000000000000000000000000000..127c25b4b38fca2392b9456dbce811fb34ff562a
--- /dev/null
+++ b/Doc/Sda1/Ref/Organizer/src/main/java/de/hdm_stuttgart/mi/sda1/App.java
@@ -0,0 +1,29 @@
+package de.hdm_stuttgart.mi.sda1;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+
+/**
+ * A simple http://logging.apache.org/log4j/2.x demo,
+ * see file resources/log4j2.xml for configuration options
+ * and A1.log containing debugging output.
+ */
+
+public class App {
+ private static Logger log = LogManager.getLogger(App.class);
+
+ /**
+ * Your application's main entry point.
+ *
+ * @param args Yet unused
+ */
+ public static void main( String[] args ) {
+ System.out.println( "Hello World!" );
+
+ log.debug("With respect to logging you may want to configure file ");
+ log.debug("'src/main/resources/log4j2.xml' to suit your needs.");
+ log.debug("This config file 'log4j2.xml' will result in 'A1.log'");
+ log.debug("file containing logging output as well.");
+ }
+}
diff --git a/Doc/Sda1/Ref/Organizer/src/main/resources/log4j2.xml b/Doc/Sda1/Ref/Organizer/src/main/resources/log4j2.xml
new file mode 100644
index 0000000000000000000000000000000000000000..eb20b442affff60c0ad812f843ef54a2a0a9c37f
--- /dev/null
+++ b/Doc/Sda1/Ref/Organizer/src/main/resources/log4j2.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration>
+ <Appenders>
+ <File name="A1" fileName="A1.log" append="false">
+ <PatternLayout pattern="%t %-5p %c{2} - %m%n"/>
+ </File>
+ <Console name="STDOUT" target="SYSTEM_OUT">
+ <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
+ </Console>
+ </Appenders>
+ <Loggers>
+
+ <!-- You my want to define class or package level per-logger rules -->
+ <Logger name="de.hdm_stuttgart.mi.sda1.App" level="debug">
+ <AppenderRef ref="A1"/>
+ </Logger>
+ <Root level="info">
+ <AppenderRef ref="STDOUT"/>
+ </Root>
+ </Loggers>
+</Configuration>
\ No newline at end of file
diff --git a/Doc/Sda1/Ref/Organizer/src/test/java/de/hdm_stuttgart/mi/sda1/AppTest.java b/Doc/Sda1/Ref/Organizer/src/test/java/de/hdm_stuttgart/mi/sda1/AppTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..7c4b69e38e51c0f55a2e5203edc2da83368bac82
--- /dev/null
+++ b/Doc/Sda1/Ref/Organizer/src/test/java/de/hdm_stuttgart/mi/sda1/AppTest.java
@@ -0,0 +1,17 @@
+package de.hdm_stuttgart.mi.sda1;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest {
+ /**
+ * Dummy test method
+ */
+ @Test
+ public void testApp() {
+ Assert.assertTrue( true );
+ }
+}
diff --git a/Doc/Sda1/xmlschema.xml b/Doc/Sda1/xmlschema.xml
index 83f16339ebfaccf18ddd0b7293805879bce950df..7e26b99bb55d5df42888a058320a327ac0f1c3cd 100644
--- a/Doc/Sda1/xmlschema.xml
+++ b/Doc/Sda1/xmlschema.xml
@@ -1269,6 +1269,785 @@ String s1 = new String(), s2 = new String();</programlisting>
</tr>
</informaltable>
</figure>
+
+ <figure xml:id="sda1_xmlschema_fig_textContentAttribute">
+ <title>Ooops: Text content and attributes</title>
+
+ <informaltable border="0">
+ <tr>
+ <td valign="top"><programlisting language="none"><a href="https://my.com">Some text</a>
+ <emphasis role="red">â–²</emphasis>
+ <emphasis role="red">│</emphasis>
+ <emphasis role="red">│</emphasis>
+ <!-- Just a string --></programlisting></td>
+
+ <td valign="top"><programlisting language="none"><xs:element name="a">
+ <xs:complexType>
+ <xs:simpleContent>
+ <xs:extension base="xs:string"> <co
+ linkends="sda1_xmlschema_fig_textContentAttribute-1"
+ xml:id="sda1_xmlschema_fig_textContentAttribute-1-co"/>
+ <xs:attribute name="href" type="xs:anyURI"/> <co
+ linkends="sda1_xmlschema_fig_textContentAttribute-2"
+ xml:id="sda1_xmlschema_fig_textContentAttribute-2-co"/>
+ </xs:extension>
+ </xs:simpleContent>
+ </xs:complexType>
+</xs:element></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <calloutlist>
+ <callout arearefs="sda1_xmlschema_fig_textContentAttribute-1-co"
+ xml:id="sda1_xmlschema_fig_textContentAttribute-1">
+ <para>The <tag class="starttag">a</tag> element will contain pure
+ text.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_fig_textContentAttribute-2-co"
+ xml:id="sda1_xmlschema_fig_textContentAttribute-2">
+ <para>The element will have an <xref linkend="glo_URL"/>
+ representing attribute <tag class="starttag">a
+ href="..."</tag>.</para>
+ </callout>
+ </calloutlist>
+ </section>
+
+ <section xml:id="xpath">
+ <title><link xlink:href="https://www.w3.org/TR/xpath">XPath</link> and
+ node sets</title>
+
+ <para><xref linkend="glo_SQL"/> allows for predicate base queries
+ returning a set of data records:</para>
+
+ <figure xml:id="sda1_fig_sqlQueryPrinciple">
+ <title><xref linkend="glo_SQL"/> query result</title>
+
+ <informaltable border="0">
+ <tr>
+ <th>Query</th>
+
+ <th>Set</th>
+ </tr>
+
+ <tr>
+ <td valign="top"><programlisting language="sql">SELECT name, email
+from Customer
+WHERE dept='finance'
+ or category = 12</programlisting></td>
+
+ <td valign="top"><screen>{
+ ('John Yates', 'yates@company.com'),
+ ('Sandra Barnes', 'barnes@testcenter.org'),
+...
+}</screen></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <para>Likewise the <acronym
+ xlink:href="https://www.w3.org/TR/xpath">XPath</acronym> standard allows
+ for predicate based queries on XML documents retrieving node sets. Thus
+ its role may be compared to <xref linkend="glo_SQL"/>
+ <code>SELECT</code> ... <code>FROM</code> ...<code>WHERE</code> queries.
+ Some simple examples:</para>
+
+ <figure xml:id="sda1_fig_sqlXpathCompare">
+ <title>Comparing <xref linkend="glo_SQL"/> and <xref
+ linkend="glo_XPath"/></title>
+
+ <para>Predicate based queries:</para>
+
+ <informaltable border="1">
+ <tr>
+ <td valign="top"><programlisting language="sql">SELECT name, email
+from Customer
+WHERE dept='finance'
+ or category = 12</programlisting></td>
+
+ <td valign="top"><programlisting language="xml"><database>
+ ...
+ <customer dept='finance'>...
+
+</database></programlisting><programlisting language="xslt">/database//customer[@dept='finance'
+ or category='7']</programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="sda1_fig_sqlXpathCommonDifferent">
+ <title>Similarities and differences</title>
+
+ <para>Predicate base queries:</para>
+
+ <informaltable border="1">
+ <tr>
+ <th><xref linkend="glo_SQL"/></th>
+
+ <th><xref linkend="glo_XPath"/></th>
+ </tr>
+
+ <tr>
+ <td align="center" colspan="2" valign="top"><itemizedlist>
+ <listitem>
+ <para>Predicate based queries using boolean algebra</para>
+ </listitem>
+ </itemizedlist></td>
+ </tr>
+
+ <tr>
+ <td valign="top"><itemizedlist>
+ <listitem>
+ <para>Joins</para>
+ </listitem>
+
+ <listitem>
+ <para><quote>Flat</quote> data</para>
+ </listitem>
+ </itemizedlist></td>
+
+ <td valign="top"><itemizedlist>
+ <listitem>
+ <para>Hierarchical data support</para>
+ </listitem>
+
+ <listitem>
+ <para>Polymorphic results</para>
+ </listitem>
+ </itemizedlist></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathExamples">
+ <title>Simple <acronym
+ xlink:href="https://www.w3.org/TR/xpath">XPath</acronym>
+ queries</title>
+
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="Ref/Fig/xpath.fig" scale="65"/>
+ </imageobject>
+ </mediaobject>
+ </figure>
+
+ <figure xml:id="sda1_fig_xpathFileSystemAnalogyRelative">
+ <title>Relative file system search using <command
+ xlink:href="https://shapeshed.com/unix-find">find</command></title>
+
+ <para>Starting from relative directory context:</para>
+
+ <programlisting language="bash">find . -type d -name Gyre-P\*</programlisting>
+
+ <para>Result:</para>
+
+ <screen>./HTML-CSS/fonts/Gyre-Pagella
+./SVG/fonts/Gyre-Pagella</screen>
+ </figure>
+
+ <figure xml:id="sda1_fig_xpathFileSystemAnalogyAbsolute">
+ <title><command
+ xlink:href="https://shapeshed.com/unix-find">find</command> starting
+ from absolute path</title>
+
+ <para>Starting from absolute directory context:</para>
+
+ <programlisting language="bash">find /etc/ -type f -and -name pac\*</programlisting>
+
+ <para>Result:</para>
+
+ <screen>/etc/brltty/Input/fs/pacmate.ktb
+/etc/gnome-app-install/packages-whitelist</screen>
+ </figure>
+
+ <figure xml:id="fig_XpathContextNodeEx1">
+ <title><xref linkend="glo_XPath"/> and context nodes</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para><tag class="starttag">top</tag></para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>b/a</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b id="first">
+ <emphasis role="red"><a></emphasis>One<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Two<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Four<emphasis role="red"></a></emphasis>
+ </b>
+ <c>Mixed<a>content></a>Example</c>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathContextNodeEx2">
+ <title>Union</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para><tag class="starttag">top</tag></para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>(b|c)</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <emphasis role="red"><b id="first"></emphasis>
+ <a>One</a>
+ <a>Two</a>
+ <a>Three</a>
+ <a>Four</a>
+ <emphasis role="red"></b></emphasis>
+ <emphasis role="red"><c></emphasis>Mixed<a>content></a>Example<emphasis
+ role="red"></c></emphasis>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathContextNodeUnionDescent">
+ <title>Union / descent</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para><tag class="starttag">top</tag></para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>(b|c)/a</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b>
+ <emphasis role="red"><a></emphasis>One<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Two<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Four<emphasis role="red"></a></emphasis>
+ </b>
+ <c>Mixed <emphasis role="red"><a></emphasis>content<emphasis
+ role="red"></a> </emphasis>Example</c>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathContextNodeEx3">
+ <title>Recursive search for element name</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para>-</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>//a</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b>
+ <emphasis role="red"><a></emphasis>One<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Two<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Four<emphasis role="red"></a></emphasis>
+ </b>
+ <c>Mixed <emphasis role="red"><a></emphasis>content<emphasis
+ role="red"></a> </emphasis>Example</c>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathContextNodeRecursivePlusIndex">
+ <title>Recursive + index search</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para>-</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>//a[2]</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b>
+ <a>One</a>
+ <emphasis role="red"><a></emphasis>Two<emphasis role="red"></a></emphasis>
+ <a>Three</a>
+ <a>Four</a>
+ </b>
+ <c>Mixed<a>content></a>Example</c>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathContextNodeSurprise">
+ <title>Surprise!</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para>-</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>//a[1]</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b>
+ <emphasis role="red"><a></emphasis>One<emphasis role="red"></a></emphasis>
+ <a>Two</a>
+ <a>Three</a>
+ <a>Four</a>
+ </b>
+ <c>Mixed<emphasis role="red"><a></emphasis>content><emphasis
+ role="red"></a></emphasis>Example</c>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="sda1_fig_siblings">
+ <title>Siblings</title>
+
+ <glosslist>
+ <glossentry>
+ <glossterm><code>preceeding-siblings::*</code></glossterm>
+
+ <glossdef>
+ <para>All nodes having the same parent node as the content node
+ and appearing <quote>before</quote> the context node.</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm><code>following-siblings::*</code></glossterm>
+
+ <glossdef>
+ <para>All nodes having the same parent node as the content node
+ and appearing <quote>after</quote> the context node.</para>
+ </glossdef>
+ </glossentry>
+ </glosslist>
+
+ <para><quote>Before</quote> and <quote>after</quote> with respect to
+ <link
+ xlink:href="https://en.wikipedia.org/wiki/Depth-first_search">depth-first</link>
+ tree traversal.</para>
+ </figure>
+
+ <figure xml:id="fig_XpathFollowingSiblings">
+ <title>Following siblings</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para><tag class="starttag">a</tag>Two<tag
+ class="endtag">a</tag></para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>following-sibling::*</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b>
+ <a>One</a>
+ <a>Two</a>
+ <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><x></emphasis>Four<emphasis role="red"></x></emphasis>
+ <emphasis role="red"><a></emphasis>Five<emphasis role="red"></a></emphasis>
+ </b>
+ <c>Mixed<a>content></a>Example</c>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <para><abbrev xlink:href="https://www.w3.org/TR/xpath">XPath</abbrev>
+ provides <link xlink:href="https://www.w3.org/TR/xpath#axes">different
+ axis definitions</link>:</para>
+
+ <figure xml:id="sda1_fig_disjointAxeSets">
+ <title>Disjoint <acronym
+ xlink:href="https://www.w3.org/TR/xpath">XPath</acronym> axis
+ definitions.</title>
+
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="Ref/Fig/preceding.fig"/>
+ </imageobject>
+
+ <caption>
+ <para>The sets defined by ancestor, descendant, following,
+ preceding and self are disjoint. Their union equals the set of all
+ document nodes.</para>
+ </caption>
+ </mediaobject>
+ </figure>
+
+ <figure xml:id="fig_XpathFollowingSiblingsRestricted">
+ <title>Element restricted following siblings</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para><tag class="starttag">a</tag>Two<tag
+ class="endtag">a</tag></para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>following-sibling::a</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b>
+ <a>One</a>
+ <a>Two</a>
+ <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
+ <x>Four</x>
+ <emphasis role="red"><a></emphasis>Five<emphasis role="red"></a></emphasis>
+ </b>
+ <c>Mixed<a>content></a>Example</c>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathText">
+ <title>Elements containing non-whitespace text</title>
+
+ <informaltable border="1">
+ <colgroup width="39%"/>
+
+ <colgroup width="61%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para>-</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>//*[text()[0 &lt;
+ string-length(normalize-space(.))]]</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b id="first">
+ <emphasis role="red"><a></emphasis>A house<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Rent a car<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Two houses<emphasis role="red"></a></emphasis>
+ <emphasis role="red"><a></emphasis>Five<emphasis role="red"></a></emphasis>
+ </b>
+ <emphasis role="red"><c></emphasis>Building a house<emphasis
+ role="red"></c></emphasis>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathFollowingText">
+ <title>Elements containing text containing <emphasis
+ role="red">'house'</emphasis></title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para>-</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>//*[text()[contains(., <emphasis
+ role="red">'house'</emphasis>)]]</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b id="first">
+ <emphasis role="red"><a></emphasis>A house<emphasis role="red"></a></emphasis>
+ <a>Rent a car</a>
+ <emphasis role="red"><a></emphasis>Two houses<emphasis role="red"></a></emphasis>
+ <a>Five</a>
+ </b>
+ <emphasis role="red"><c></emphasis>Building a house<emphasis
+ role="red"></c></emphasis>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="fig_XpathLongText">
+ <title>Elements containing text of minimal length</title>
+
+ <informaltable border="1">
+ <colgroup width="43%"/>
+
+ <colgroup width="57%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para>-</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>//*[text()[7 &lt;
+ string-length(normalize-space(.))]]</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b id="first">
+ <a>A house</a>
+ <a>Rent a car</a>
+ <emphasis role="red"><a></emphasis>Two houses<emphasis role="red"></a></emphasis>
+ <a>Five</a>
+ </b>
+ <emphasis role="red"><c></emphasis>Building a house<emphasis
+ role="red"></c></emphasis>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="sda1_fig_xpathAttribSearch">
+ <title>Searching for attribute presence</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para>-</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>//*[@id]</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <emphasis role="red"><b </emphasis>id="start"<emphasis role="red">></emphasis>
+ <a>A house</a>
+ <a>Rent a car</a>
+ <a>Two houses </a>
+ <a>Five</a>
+ </b>
+ <emphasis role="red"><c</emphasis> id="build"<emphasis role="red">></emphasis>Building a house<emphasis
+ role="red"></c></emphasis>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
+
+ <figure xml:id="sda1_fig_xpathAttribSearchValue">
+ <title>Searching for attribute value</title>
+
+ <informaltable border="1">
+ <colgroup width="30%"/>
+
+ <colgroup width="70%"/>
+
+ <tr>
+ <td valign="top"><glosslist>
+ <glossentry>
+ <glossterm>Context node</glossterm>
+
+ <glossdef>
+ <para>-</para>
+ </glossdef>
+ </glossentry>
+
+ <glossentry>
+ <glossterm>XPath</glossterm>
+
+ <glossdef>
+ <para><code>//*[@id='build']</code></para>
+ </glossdef>
+ </glossentry>
+ </glosslist></td>
+
+ <td valign="top"><programlisting language="xml"><top>
+ <b id="first">
+ <a>A house</a>
+ <a>Rent a car</a>
+ <a>Two houses </a>
+ <a>Five</a>
+ </b>
+ <emphasis role="red"><c</emphasis> id="build"<emphasis role="red">></emphasis>Building a house<emphasis
+ role="red"></c></emphasis>
+</top></programlisting></td>
+ </tr>
+ </informaltable>
+ </figure>
</section>
<section xml:id="sda1_xmlschema_sect_uniquenessConstraints">
@@ -1753,6 +2532,196 @@ key "primaryKey". --></emphasis>
</appointment>
</programlisting>
</figure>
+
+ <qandaset defaultlabel="qanda"
+ xml:id="sda1_xmlschema_qanda_memoExtended">
+ <title>Representing extended <tag class="starttag">memo</tag>
+ instances</title>
+
+ <qandadiv>
+ <qandaentry>
+ <question>
+ <para>This exercise is about representing an online messaging
+ system's data store:</para>
+
+ <programlisting language="none"><memo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="memo.xsd"
+ date="2014-09-24" <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-1"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-1-co"/> priority="medium" <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-2"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-2-co"/>>
+ <contacts> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-3"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-3-co"/>
+ <entry id="10"> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-4"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-4-co"/>
+ <commonName>Susan Sonntag</commonName>
+ <tel>+44332232323</tel> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-5"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-5-co"/>
+ <email>susan23@evermail.com</email> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-6"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-6-co"/>
+ <email>susa112@private.uk</email>
+ </entry>
+ <entry id="20">
+ <commonName>John Balber</commonName>
+ <email>balber@hatebook.com</email>
+ <tel>017297123232</tel>
+ <email>home@balber.org</email>
+ </entry>
+ <entry id="25">
+ <commonName>Mary Palmer</commonName>
+ <tel>017297123232</tel>
+ </entry>
+ </contacts>
+
+ <from contact="10"/> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-7"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-7-co"/>
+ <to contact="20"/> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-8"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-8-co"/>
+ <to contact="25"/>
+ <subject>Best whishes</subject>
+ <content>
+ <para>Have a nice trip!</para>
+ <para>I feel <emphasis>very</emphasis> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-9"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-9-co"/> happy for you. Don't miss <link href="https://www.wikipedia.org"> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-10"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-10-co"/> sharing your results</link>.</para> <co
+ linkends="sda1_xmlschema_qanda_memoExtendedExampleData-11"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-11-co"/>
+ </content>
+</memo></programlisting>
+
+ <calloutlist>
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-1-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-1">
+ <para>Mandatory <property>@date</property> attribute of
+ appropriate type.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-2-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-2">
+ <para>Optional <property>@priority</property> attribute
+ allowing exactly one of {<code>low</code>,
+ <code>medium</code>, <code>high</code>}.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-3-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-3">
+ <para><tag class="starttag">contacts</tag> defining a list
+ of contacts having at least one <tag
+ class="starttag">entry</tag>.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-4-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-4">
+ <para>Each <tag class="starttag">entry</tag> represents an
+ individual contact having a unique <property>@id</property>
+ value. Rules:</para>
+
+ <itemizedlist>
+ <listitem>
+ <para>An <tag class="starttag">entry</tag> must have at
+ least one <tag class="starttag">email</tag> or <tag
+ class="starttag">tel</tag> child.</para>
+ </listitem>
+
+ <listitem>
+ <para><tag class="starttag">email</tag> and <tag
+ class="starttag">tel</tag> children may appear in
+ arbitrary order. Hint: Watch out for the <tag
+ class="starttag">xs:choice</tag> definition.</para>
+ </listitem>
+ </itemizedlist>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-5-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-5">
+ <para>A telephone number is subject to the following
+ restrictions:</para>
+
+ <itemizedlist>
+ <listitem>
+ <para>A telephone number must start either with
+ <quote>0</quote> or <quote>+</quote>.</para>
+ </listitem>
+
+ <listitem>
+ <para>Apart from a <quote>+</quote> sign at the very
+ beginning only digits are allowed.</para>
+ </listitem>
+
+ <listitem>
+ <para>If starting with an (international) + indicator
+ the next character must not be zero. A <quote>+</quote>
+ indicator must be followed by at least three digits (two
+ representing the country code plus at least one
+ <quote>national</quote> digit).</para>
+ </listitem>
+ </itemizedlist>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-6-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-6">
+ <para>Consider <xref
+ linkend="sda1_xmlschema_fig_organizerEmailUserType"/>.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-7-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-7">
+ <para>The <tag class="starttag">from</tag> element
+ represents the memo's sender with
+ <property>@contact</property> referring to an <tag
+ class="starttag">entry</tag> element. A <tag
+ class="starttag">memo</tag> has got exactly one
+ sender.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-8-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-8">
+ <para>Likewise each <tag class="starttag">to</tag> element
+ represents a recipient. All recipients form a set (having no
+ duplicates). Thus within a given <tag
+ class="starttag">memo</tag> all @contact attribute values
+ appearing in <tag class="starttag">to</tag> elements must be
+ unique.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-9-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-9">
+ <para>para elements allow for mixed content possibly
+ containing both <tag class="starttag">emphasis</tag> and
+ <tag class="starttag">link</tag> children. An <tag
+ class="starttag">emphasis</tag> element's formatting
+ expectation is <abbrev>e.g.</abbrev> using bold font
+ weight.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-10-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-10">
+ <para><tag class="starttag">link</tag> elements are the
+ equivalent to the <xref linkend="glo_HTML"/> <tag
+ class="starttag">a href="..."</tag> element. Hint: <xref
+ linkend="glo_XSD"/> offers a type suitable for URI
+ strings.</para>
+ </callout>
+
+ <callout arearefs="sda1_xmlschema_qanda_memoExtendedExampleData-11-co"
+ xml:id="sda1_xmlschema_qanda_memoExtendedExampleData-11">
+ <para>There must be at least one <tag
+ class="starttag">para</tag> child within <tag
+ class="starttag">content</tag>.</para>
+ </callout>
+ </calloutlist>
+ </question>
+ </qandaentry>
+ </qandadiv>
+ </qandaset>
</section>
<section xml:id="sda1_xmlschema_sect_bestPractices">
diff --git a/Doc/Sda1/xslt.xml b/Doc/Sda1/xslt.xml
index acfc22c3ffa7afda415163eaba163b0a91d8bcbd..5c6eb893e0678511c6e6c05ef83c813b5bef34b3 100644
--- a/Doc/Sda1/xslt.xml
+++ b/Doc/Sda1/xslt.xml
@@ -339,741 +339,6 @@ Martin Goik</computeroutput></screen>
</calloutlist>
</section>
- <section xml:id="xpath">
- <title><link xlink:href="https://www.w3.org/TR/xpath">XPath</link> and
- node sets</title>
-
- <para><xref linkend="glo_SQL"/> allows for predicate base queries
- returning a set of data records:</para>
-
- <figure xml:id="sda1_fig_sqlQueryPrinciple">
- <title><xref linkend="glo_SQL"/> query result</title>
-
- <informaltable border="0">
- <tr>
- <th>Query</th>
-
- <th>Set</th>
- </tr>
-
- <tr>
- <td valign="top"><programlisting language="sql">SELECT name, email
-from Customer
-WHERE dept='finance'
- or category = 12</programlisting></td>
-
- <td valign="top"><screen>{
- ('John Yates', 'yates@company.com'),
- ('Sandra Barnes', 'barnes@testcenter.org'),
-...
-}</screen></td>
- </tr>
- </informaltable>
- </figure>
-
- <para>Likewise the <acronym
- xlink:href="https://www.w3.org/TR/xpath">XPath</acronym> standard allows
- for predicate based queries on XML documents retrieving node sets. Thus
- its role may be compared to <xref linkend="glo_SQL"/> <code>SELECT</code>
- ... <code>FROM</code> ...<code>WHERE</code> queries. Some simple
- examples:</para>
-
- <figure xml:id="sda1_fig_sqlXpathCompare">
- <title>Comparing <xref linkend="glo_SQL"/> and <xref
- linkend="glo_XPath"/></title>
-
- <para>Predicate based queries:</para>
-
- <informaltable border="1">
- <tr>
- <td valign="top"><programlisting language="sql">SELECT name, email
-from Customer
-WHERE dept='finance'
- or category = 12</programlisting></td>
-
- <td valign="top"><programlisting language="xml"><database>
- ...
- <customer dept='finance'>...
-
-</database></programlisting><programlisting language="xslt">/database//customer[@dept='finance'
- or category='7']</programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="sda1_fig_sqlXpathCommonDifferent">
- <title>Similarities and differences</title>
-
- <para>Predicate base queries:</para>
-
- <informaltable border="1">
- <tr>
- <th><xref linkend="glo_SQL"/></th>
-
- <th><xref linkend="glo_XPath"/></th>
- </tr>
-
- <tr>
- <td align="center" colspan="2" valign="top"><itemizedlist>
- <listitem>
- <para>Predicate based queries using boolean algebra</para>
- </listitem>
- </itemizedlist></td>
- </tr>
-
- <tr>
- <td valign="top"><itemizedlist>
- <listitem>
- <para>Joins</para>
- </listitem>
-
- <listitem>
- <para><quote>Flat</quote> data</para>
- </listitem>
- </itemizedlist></td>
-
- <td valign="top"><itemizedlist>
- <listitem>
- <para>Hierarchical data support</para>
- </listitem>
-
- <listitem>
- <para>Polymorphic results</para>
- </listitem>
- </itemizedlist></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathExamples">
- <title>Simple <acronym
- xlink:href="https://www.w3.org/TR/xpath">XPath</acronym> queries</title>
-
- <mediaobject>
- <imageobject>
- <imagedata fileref="Ref/Fig/xpath.fig" scale="65"/>
- </imageobject>
- </mediaobject>
- </figure>
-
- <figure xml:id="sda1_fig_xpathFileSystemAnalogyRelative">
- <title>Relative file system search using <command
- xlink:href="https://shapeshed.com/unix-find">find</command></title>
-
- <para>Starting from relative directory context:</para>
-
- <programlisting language="bash">find . -type d -name Gyre-P\*</programlisting>
-
- <para>Result:</para>
-
- <screen>./HTML-CSS/fonts/Gyre-Pagella
-./SVG/fonts/Gyre-Pagella</screen>
- </figure>
-
- <figure xml:id="sda1_fig_xpathFileSystemAnalogyAbsolute">
- <title><command
- xlink:href="https://shapeshed.com/unix-find">find</command> starting
- from absolute path</title>
-
- <para>Starting from absolute directory context:</para>
-
- <programlisting language="bash">find /etc/ -type f -and -name pac\*</programlisting>
-
- <para>Result:</para>
-
- <screen>/etc/brltty/Input/fs/pacmate.ktb
-/etc/gnome-app-install/packages-whitelist</screen>
- </figure>
-
- <figure xml:id="fig_XpathContextNodeEx1">
- <title><xref linkend="glo_XPath"/> and context nodes</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para><tag class="starttag">top</tag></para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>b/a</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b id="first">
- <emphasis role="red"><a></emphasis>One<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Two<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Four<emphasis role="red"></a></emphasis>
- </b>
- <c>Mixed<a>content></a>Example</c>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathContextNodeEx2">
- <title>Union</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para><tag class="starttag">top</tag></para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>(b|c)</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <emphasis role="red"><b id="first"></emphasis>
- <a>One</a>
- <a>Two</a>
- <a>Three</a>
- <a>Four</a>
- <emphasis role="red"></b></emphasis>
- <emphasis role="red"><c></emphasis>Mixed<a>content></a>Example<emphasis
- role="red"></c></emphasis>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathContextNodeUnionDescent">
- <title>Union / descent</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para><tag class="starttag">top</tag></para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>(b|c)/a</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b>
- <emphasis role="red"><a></emphasis>One<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Two<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Four<emphasis role="red"></a></emphasis>
- </b>
- <c>Mixed <emphasis role="red"><a></emphasis>content<emphasis
- role="red"></a> </emphasis>Example</c>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathContextNodeEx3">
- <title>Recursive search for element name</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para>-</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>//a</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b>
- <emphasis role="red"><a></emphasis>One<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Two<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Four<emphasis role="red"></a></emphasis>
- </b>
- <c>Mixed <emphasis role="red"><a></emphasis>content<emphasis
- role="red"></a> </emphasis>Example</c>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathContextNodeRecursivePlusIndex">
- <title>Recursive + index search</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para>-</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>//a[2]</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b>
- <a>One</a>
- <emphasis role="red"><a></emphasis>Two<emphasis role="red"></a></emphasis>
- <a>Three</a>
- <a>Four</a>
- </b>
- <c>Mixed<a>content></a>Example</c>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathContextNodeSurprise">
- <title>Surprise!</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para>-</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>//a[1]</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b>
- <emphasis role="red"><a></emphasis>One<emphasis role="red"></a></emphasis>
- <a>Two</a>
- <a>Three</a>
- <a>Four</a>
- </b>
- <c>Mixed<emphasis role="red"><a></emphasis>content><emphasis
- role="red"></a></emphasis>Example</c>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="sda1_fig_siblings">
- <title>Siblings</title>
-
- <glosslist>
- <glossentry>
- <glossterm><code>preceeding-siblings::*</code></glossterm>
-
- <glossdef>
- <para>All nodes having the same parent node as the content node
- and appearing <quote>before</quote> the context node.</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm><code>following-siblings::*</code></glossterm>
-
- <glossdef>
- <para>All nodes having the same parent node as the content node
- and appearing <quote>after</quote> the context node.</para>
- </glossdef>
- </glossentry>
- </glosslist>
-
- <para><quote>Before</quote> and <quote>after</quote> with respect to
- <link
- xlink:href="https://en.wikipedia.org/wiki/Depth-first_search">depth-first</link>
- tree traversal.</para>
- </figure>
-
- <figure xml:id="fig_XpathFollowingSiblings">
- <title>Following siblings</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para><tag class="starttag">a</tag>Two<tag
- class="endtag">a</tag></para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>following-sibling::*</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b>
- <a>One</a>
- <a>Two</a>
- <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
- <emphasis role="red"><x></emphasis>Four<emphasis role="red"></x></emphasis>
- <emphasis role="red"><a></emphasis>Five<emphasis role="red"></a></emphasis>
- </b>
- <c>Mixed<a>content></a>Example</c>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <para><abbrev xlink:href="https://www.w3.org/TR/xpath">XPath</abbrev>
- provides <link xlink:href="https://www.w3.org/TR/xpath#axes">different
- axis definitions</link>:</para>
-
- <figure xml:id="sda1_fig_disjointAxeSets">
- <title>Disjoint <acronym
- xlink:href="https://www.w3.org/TR/xpath">XPath</acronym> axis
- definitions.</title>
-
- <mediaobject>
- <imageobject>
- <imagedata fileref="Ref/Fig/preceding.fig"/>
- </imageobject>
-
- <caption>
- <para>The sets defined by ancestor, descendant, following, preceding
- and self are disjoint. Their union equals the set of all document
- nodes.</para>
- </caption>
- </mediaobject>
- </figure>
-
- <figure xml:id="fig_XpathFollowingSiblingsRestricted">
- <title>Element restricted following siblings</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para><tag class="starttag">a</tag>Two<tag
- class="endtag">a</tag></para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>following-sibling::a</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b>
- <a>One</a>
- <a>Two</a>
- <emphasis role="red"><a></emphasis>Three<emphasis role="red"></a></emphasis>
- <x>Four</x>
- <emphasis role="red"><a></emphasis>Five<emphasis role="red"></a></emphasis>
- </b>
- <c>Mixed<a>content></a>Example</c>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathText">
- <title>Elements containing non-whitespace text</title>
-
- <informaltable border="1">
- <colgroup width="39%"/>
-
- <colgroup width="61%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para>-</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>//*[text()[0 &lt;
- string-length(normalize-space(.))]]</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b id="first">
- <emphasis role="red"><a></emphasis>A house<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Rent a car<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Two houses<emphasis role="red"></a></emphasis>
- <emphasis role="red"><a></emphasis>Five<emphasis role="red"></a></emphasis>
- </b>
- <emphasis role="red"><c></emphasis>Building a house<emphasis
- role="red"></c></emphasis>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathFollowingText">
- <title>Elements containing text containing <emphasis
- role="red">'house'</emphasis></title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para>-</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>//*[text()[contains(., <emphasis
- role="red">'house'</emphasis>)]]</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b id="first">
- <emphasis role="red"><a></emphasis>A house<emphasis role="red"></a></emphasis>
- <a>Rent a car</a>
- <emphasis role="red"><a></emphasis>Two houses<emphasis role="red"></a></emphasis>
- <a>Five</a>
- </b>
- <emphasis role="red"><c></emphasis>Building a house<emphasis
- role="red"></c></emphasis>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="fig_XpathLongText">
- <title>Elements containing text of minimal length</title>
-
- <informaltable border="1">
- <colgroup width="43%"/>
-
- <colgroup width="57%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para>-</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>//*[text()[7 &lt;
- string-length(normalize-space(.))]]</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b id="first">
- <a>A house</a>
- <a>Rent a car</a>
- <emphasis role="red"><a></emphasis>Two houses<emphasis role="red"></a></emphasis>
- <a>Five</a>
- </b>
- <emphasis role="red"><c></emphasis>Building a house<emphasis
- role="red"></c></emphasis>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="sda1_fig_xpathAttribSearch">
- <title>Searching for attribute presence</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para>-</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>//*[@id]</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <emphasis role="red"><b </emphasis>id="start"<emphasis role="red">></emphasis>
- <a>A house</a>
- <a>Rent a car</a>
- <a>Two houses </a>
- <a>Five</a>
- </b>
- <emphasis role="red"><c</emphasis> id="build"<emphasis role="red">></emphasis>Building a house<emphasis
- role="red"></c></emphasis>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
-
- <figure xml:id="sda1_fig_xpathAttribSearchValue">
- <title>Searching for attribute value</title>
-
- <informaltable border="1">
- <colgroup width="30%"/>
-
- <colgroup width="70%"/>
-
- <tr>
- <td valign="top"><glosslist>
- <glossentry>
- <glossterm>Context node</glossterm>
-
- <glossdef>
- <para>-</para>
- </glossdef>
- </glossentry>
-
- <glossentry>
- <glossterm>XPath</glossterm>
-
- <glossdef>
- <para><code>//*[@id='build']</code></para>
- </glossdef>
- </glossentry>
- </glosslist></td>
-
- <td valign="top"><programlisting language="xml"><top>
- <b id="first">
- <a>A house</a>
- <a>Rent a car</a>
- <a>Two houses </a>
- <a>Five</a>
- </b>
- <emphasis role="red"><c</emphasis> id="build"<emphasis role="red">></emphasis>Building a house<emphasis
- role="red"></c></emphasis>
-</top></programlisting></td>
- </tr>
- </informaltable>
- </figure>
- </section>
-
<section xml:id="sda1_sect_memoRecipents">
<title>Example: <tag class="element">memo</tag> recipients</title>
diff --git a/Doc/lectures.xml b/Doc/lectures.xml
index 8905284839ca15efb080b665bee2da0f27ddab75..71480e4ec3d5792b99972f27a0a9e34fe46f767a 100644
--- a/Doc/lectures.xml
+++ b/Doc/lectures.xml
@@ -90,7 +90,7 @@
xlink:href="https://en.wikipedia.org/wiki/EPUB">Epub</productname>
reader applications do vary supporting <xref linkend="glo_EPUB"/>
3.0 (<abbrev>e.g.</abbrev> formulas and <xref linkend="glo_SVG"/>
- images). Reader apps known to work well:</para>
+ images).</para>
</caution>
<para>Reader apps known to work well:</para>