Hi All, I'm new to perl. I want to fetch the innermost child elements first, then parent node using XML::XPath module. Below is the xml content. 
<mml:math> 
  <mml:mi>Goa</mml:mi>
  <mml:mo>abu</mml:mo>
  <mml:msub>
     <mml:mrow>
        <mml:mi>China</mml:mi>
     </mml:mrow>
     <mml:mrow>
        <mml:msub>
           <mml:mrow>
              <mml:mi>poland</mml:mi>
           </mml:mrow>
           <mml:mrow>
       <mml:msub>swift</mml:msub>
              <mml:mi>a</mml:mi>
           </mml:mrow>
        </mml:msub>
     </mml:mrow>
  </mml:msub>

  <mml:mo>miot</mml:mo>
  <mml:msub>
     <mml:mrow>
        <mml:mi>Canada</mml:mi>
     </mml:mrow>
     <mml:mrow>
        <mml:msup>
           <mml:mrow>
              <mml:mi>police</mml:mi>
           </mml:mrow>
           <mml:mrow>
              <mml:mi>bangalore</mml:mi>
           </mml:mrow>
        </mml:msup>
     </mml:mrow>
  </mml:msub>
</mml:math>

[download]
Below is the sequence that should be accessed first (inner most, then parent ...) 
1. <mml:msub><A>swift</A></mml:msub> 
2. <mml:msub>
           <mml:mrow>
              <mml:mi>poland</mml:mi>
           </mml:mrow>
           <mml:mrow>
       <mml:msub><A>swift</A></mml:msub>
              <mml:mi>a</mml:mi>
           </mml:mrow>
        </mml:msub>



3.  <mml:msub>
     <mml:mrow>
        <mml:mi>China</mml:mi>
     </mml:mrow>
     <mml:mrow>
        <mml:msub>
           <mml:mrow>
              <mml:mi>poland</mml:mi>
           </mml:mrow>
           <mml:mrow>
       <mml:msub><A>swift</A></mml:msub>
              <mml:mi>a</mml:mi>
           </mml:mrow>
        </mml:msub>
     </mml:mrow>
  </mml:msub>
  .....
  .....

[download]
Thanks in Advance.

In reply to Want to fetch inner most child element first by dharan

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