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XML XSL Message

Hi,

I am trying below example

https://www.tutorialspoint.com/xslt/xslt_message.htm
My code is as below

<?xml version = "1.0"?> 
<?xml-stylesheet type = "text/xsl" href = "students.xsl"?> 
<class> 
   <student rollno = "393"> 
      <firstname>Dinkar</firstname> 
      <lastname>Kad</lastname> 
      <nickname>Dinkar</nickname> 
      <marks>85</marks> 
   </student> 
   <student rollno = "493"> 
      <firstname></firstname> 
      <lastname>Gupta</lastname> 
      <nickname>Vinni</nickname> 
      <marks>95</marks> 
   </student> 
   <student rollno = "593"> 
      <firstname>Jasvir</firstname> 
      <lastname>Singh</lastname> 
      <nickname>Jazz</nickname> 
      <marks>90</marks> 
   </student> 
</class>

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<?xml version = "1.0" encoding = "UTF-8"?> 
<xsl:stylesheet version = "1.0" 
   xmlns:xsl = "http://www.w3.org/1999/XSL/Transform">   
   <xsl:template match = "/"> 
      <html> 
         <body> 
            <h2>Students</h2> 
            <table border = "1"> 
               <tr bgcolor = "#9acd32"> 
                  <th>Roll No</th> 
                  <th>First Name</th> 
                  <th>Last Name</th> 
                  <th>Nick Name</th> 
                  <th>Marks</th> 
               </tr> 
					
               <xsl:for-each select = "class/student"> 
					
                  <xsl:if test = "firstname = ''"> 
                     <xsl:message terminate = "yes">A first name field is empty. 
                     </xsl:message> 
                  </xsl:if> 
					
                  <tr> 
                     <td><xsl:value-of select = "@rollno"/></td> 
                     <td><xsl:value-of select = "firstname"/></td> 
                     <td><xsl:value-of select = "lastname"/></td>
                     <td><xsl:value-of select = "nickname"/></td> 
                     <td><xsl:value-of select = "marks"/></td> 
                  </tr> 
               </xsl:for-each> 
            </table> 
         </body> 
      </html> 
   </xsl:template>
</xsl:stylesheet>

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i am getting below wrong output without message. please advise on how to fix it

Dinkar Kad Dinkar 85 Gupta Vinni 95 Jasvir Singh Jazz 90

ASKER CERTIFIED SOLUTION

Gertone (Geert Bormans)

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gudii9

ASKER

If you are looking for an iterator and catch/throw, you need to use XSLT3

can you point to good examples in xslt3.
looks like tutorialpoint examples based on xslt2

Gertone (Geert Bormans)

well, the only two processor supporting XSLT3 is
- Saxon 9.6 and above
but you do need a paid version in order to use XSLT3 (Saxon professional edition or enterprise edition)
that processor comes with a bunch of examples that are a bit useless without the processor itself
- exselt (http://exselt.net/)
you can download a beta, but that one is dot net only