XML Tutorial/XSLT stylesheet/boolean operator

not operator in if statement

   <source lang="xml">

File: Data.xml <?xml version="1.0" encoding="utf-8"?> <emailList>

 <head:header xmlns:head="http://www.domain.ru/namespace/header">
   <title>Email List</title>
   <maintainer>Joe</maintainer>
 </head:header>
 <person type="personal" id="p001">
   <name>person1</name>
   <email>p@hotmail.ru</email>
 </person>
 <person type="work" id="p002">
   <name>person2</name>
   <email>p@hotmail.ru</email>
 </person>
 <person type="personal" id="p003">
   <name>person3</name>
   <email>p3@hotmail.ru</email>
 </person>

</emailList> File: Transform.xslt <?xml version="1.0" encoding="UTf-8" ?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

  <xsl:output method="html" indent="yes" />
  <xsl:template match="/">
     <paragraph>Your email list consists of the following individuals:
     <xsl:for-each select="emailList/person">
        <xsl:if test="position()!=last()">
        <xsl:apply-templates select="name" />, </xsl:if>
        <xsl:if test="position()=last()">
        <xsl:apply-templates select="name" />.</xsl:if>
        
     </xsl:for-each>
     </p>
  </xsl:template>
  <xsl:template match="name">
     <xsl:value-of select="normalize-space()" />
  </xsl:template>

</xsl:stylesheet> Output: <paragraph>Your email list consists of the following individuals:

  person1, person2, person3.

</p></source>

Or, not operator and if statement

   <source lang="xml">

File: Data.xml <?xml version="1.0"?> <addressbook>

 <address>
   <name>
     <title>Ms.</title>
     <first-name>Bond</first-name>
     <last-name>Lee</last-name>
   </name>
   <street>707 Main Way</street>
   <city>New York</city>
   <state>ME</state>
   <zip>00218</zip>
 </address>

</addressbook> File: Transform.xslt <?xml version="1.0"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

 <xsl:output method="text" indent="no"/>
 <xsl:variable name="newline">
 <xsl:text></xsl:text>
 </xsl:variable>
 <xsl:template match="/">
   <xsl:text>Addresses sorted by zip code</xsl:text>
   <xsl:value-of select="$newline"/>
   <xsl:for-each select="addressbook/address">
     <xsl:sort select="zip"/>
     <xsl:if test="not(preceding-sibling::address) or zip!=preceding-sibling::address[1]/zip">
       <xsl:value-of select="$newline"/>
       <xsl:text>Zip code </xsl:text>
       <xsl:value-of select="zip"/>
       <xsl:text> (</xsl:text>
       <xsl:value-of select="city"/>
       <xsl:text>, </xsl:text>
       <xsl:value-of select="state"/>
       <xsl:text>): </xsl:text>
       <xsl:value-of select="$newline"/>
     </xsl:if>
     <xsl:if test="name/title">
       <xsl:value-of select="name/title"/>
       <xsl:text> </xsl:text>
     </xsl:if>
     <xsl:value-of select="name/first-name"/>
     <xsl:text> </xsl:text>
     <xsl:value-of select="name/last-name"/>
     <xsl:value-of select="$newline"/>
     <xsl:value-of select="street"/>
     <xsl:value-of select="$newline"/>
     <xsl:value-of select="$newline"/>
   </xsl:for-each>
 </xsl:template>

</xsl:stylesheet>

Output: Addresses sorted by zip codeZip code 00218 (New York, ME): Ms. Bond Lee707 Main Way</source>

select="emailList/person[not(position()=1)]"

   <source lang="xml">

File: Data.xml <?xml version="1.0" encoding="utf-8"?> <emailList>

 <head:header xmlns:head="http://www.domain.ru/namespace/header">
   <title>Email List</title>
   <maintainer>Joe</maintainer>
 </head:header>
 <person type="personal" id="p001">
   <name>person1</name>
   <email>p@hotmail.ru</email>
 </person>
 <person type="work" id="p002">
   <name>person2</name>
   <email>p@hotmail.ru</email>
 </person>
 <person type="personal" id="p003">
   <name>person3</name>
   <email>p3@hotmail.ru</email>
 </person>

</emailList> File: Transform.xslt <?xml version="1.0" encoding="UTf-8" ?> <xsl:stylesheet version="1.0"

 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output method="text" indent="yes" />
 <xsl:template match="/">
   <xsl:apply-templates
     select="emailList/person[not(position()=1)]" />
 </xsl:template>
 <xsl:template match="person">
   <xsl:apply-templates />
 </xsl:template>

</xsl:stylesheet> Output:

   person2
   p@hotmail.ru
 
   person3
   p3@hotmail.ru</source>