Novice transformation using apply-templates and st

Question

I have an xml file and I want to convert into a xml file.

Input XML file:

<?xml version="1.0" encoding="windows-1250"?>
<CONTACTS>
    <CONTACT>
        <FirstName>Arun_niit</FirstName>
        <LastName>Arun_niit</LastName>
        <EMail>[e-mail]</EMail>
    </CONTACT>
    <CONTACT>
        <FirstName>FodenBen'</FirstName>
        <LastName>Ben' Foden</LastName>
        <URL>http://www.facebook.com/profile.php?id=100002440474277</URL>
    </CONTACT>
    <CONTACT>
        <FirstName>GhorbelMahmoud</FirstName>
        <LastName>Mahmoud Ghorbel</LastName>
        <EMail>[e-mail]</EMail>
    </CONTACT>
    <CONTACT>
        <FirstName>keyankarthik</FirstName>
        <LastName>karthik keyan</LastName>
        <EMail>[e-mail]</EMail>
    </CONTACT>
    <CONTACT>
        <FirstName>Rangarajkarthik</FirstName>
        <LastName>karthik Rangaraj</LastName>
        <EMail>[e-mail]</EMail>
        <EMail>[e-mail]</EMail>
    </CONTACT>
    <CONTACT>
        <FirstName>ReddyAkky</FirstName>
        <LastName>Akky Reddy</LastName>
        <EMail>[e-mail]</EMail>
    </CONTACT>
    <CONTACT>
        <FirstName>SandfordFrankie</FirstName>
        <LastName>Frankie Sandford</LastName>
        <URL>http://www.facebook.com/FrankieSandfordApprovedPage</URL>
    </CONTACT>
    <CONTACT>
        <FirstName>TheSatsRochelle</FirstName>
        <LastName>Rochelle TheSats</LastName>
        <URL>http://www.facebook.com/profile.php?id=100002487211054</URL>
    </CONTACT>
    <CONTACT>
        <FirstName>KumarVeera</FirstName>
        <LastName>Veera_Kumar</LastName>
        <EMail>[e-mail]</EMail>
    </CONTACT>
</CONTACTS>

I want the output like this:

        <?xml version="1.0" encoding="UTF-8"?>
<CONTACTS>
<CONTACT>
<PDE-Identity>N65539</PDE-Identity>
<FirstName>Arun_niit</FirstName>
<LastName>Arun_niit</LastName>
<Facebook-ID/>
<Emails>
<Email Type="yahoo" Value="[e-mail]"/>
</Emails>
</CONTACT>

<CONTACT>
<PDE-Identity>N65546</PDE-Identity>
<FirstName>FodenBen'</FirstName>
<LastName>Ben' Foden</LastName>
<URL>http://www.facebook.com/profile.php?id=100002440474277</URL>
<Facebook-ID>100002440474277</Facebook-ID>
<EMAILS/>
</CONTACT>

<CONTACT>
<PDE-Identity>N65553</PDE-Identity>
<FirstName>GhorbelMahmoud</FirstName>
<LastName>Mahmoud Ghorbel</LastName>
<Facebook-ID/>
<Emails>
<Email Type="alcatel-lucent" Value="[e-mail]"/>
</Emails>

<CONTACT>
<PDE-Identity>N65567</PDE-Identity>
<FirstName>Rangarajkarthik</FirstName>
<LastName>karthik Rangaraj</LastName>
<Facebook-ID/>
<Emails>
<Email Type="gmail" Value="[e-mail]"/>
<Email Type="yahoo" Value="[e-mail]"/>
</Emails>
</CONTACT>

</CONTACTS>

Any idea guys, I have learnt about xslt and i tried to add like this:

This is my xslt file:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="xml" indent="yes"/>
    <xsl:strip-space elements="*"/>

    <xsl:template match="node()|@*">
        <xsl:copy>
            <xsl:apply-templates select="node()|@*"/>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="CONTACT">
        <xsl:copy>
               <PDE-Identity>
               <xsl:value-of select="generate-id(.)"/> 
               </PDE-Identity>
              <xsl:copy-of select="FirstName|LastName|URL"/>
              <Facebook-ID><!-- To extract the ID value from URL/Email -->
            <xsl:choose>
                <xsl:when test="URL">
                    <xsl:value-of select="substring-after(URL,'?id=')"/>
                </xsl:when>
                <xsl:otherwise>
                   <!-- <xsl:value-of select="substring-before(EMail[1],'@')"/>-->
                </xsl:otherwise>
            </xsl:choose>
        </Facebook-ID>
            <EMAILS>
                <xsl:apply-templates select="EMail"/>
            </EMAILS>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="EMail">
        <EMail Type="<xsl:value-of select="substring-before(substring-after(.,'@'), '.')"/>" Value="<xsl:value-of select="."/>"/>
    </xsl:template>

</xsl:stylesheet>

It didn't work. Please help me out guys. Example code; thanks guys.

Answer 1

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="xml" indent="yes"/>
    <xsl:strip-space elements="*"/>

    <xsl:template match="node()|@*">
        <xsl:copy>
            <xsl:apply-templates select="node()|@*"/>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="CONTACT">
        <xsl:copy>
            <xsl:copy-of select="FirstName|LastName"/>
            <EMAILS>
                <xsl:apply-templates select="EMail"/>
            </EMAILS>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="EMail">
        <EMail>
            <type><xsl:value-of select="substring-before(
                    substring-after(.,'@'),
                    '.')"/>
            </type>
            <value><xsl:value-of select="."/></value>
        </EMail>
    </xsl:template>

</xsl:stylesheet>

Given your input, produces:

<?xml version="1.0" encoding="utf-8"?>
<CONTACTS>
   <CONTACT>
      <FirstName>AfgZohal</FirstName>
      <LastName>Zohal Afg</LastName>
      <EMAILS/>
   </CONTACT>
   <CONTACT>
      <FirstName>Rangarajkarthik</FirstName>
      <LastName>karthik Rangaraj</LastName>
      <EMAILS>
         <EMail>
            <type>gmail</type>
            <value>[e-mail]</value>
         </EMail>
         <EMail>
            <type>yahoo</type>
            <value>[e-mail]</value>
         </EMail>
      </EMAILS>
   </CONTACT>
</CONTACTS>

Answer 2

<xsl:template match="/contacts">
    <contacts>
        <xsl:apply-templates match="contact" />
    </contacts>
</xsl:template>
<xsl:template match="/contacts">
    <contact>
        <xsl:copy-of select="FirstName" />
        <xsl:copy-of select="LastName" />
        <xsl:if test="email">
            <emails>
                <xsl:apply-templates match="email" />
            </emails>
        </xsl:if>
    </contact>
</xsl:template>
<xsl:template match="email">
    <email>
        <type>...</type>
        <value><xsl:value-of select="." /></value>
    </email>
</xsl:template>