title: how to map the xml tag name in Talend Open studio
body: <p>I want to perform on-the-fly transformation from an XML. What talend component can be used to map the below input.xml to output.xml?</p>
  
  <p>input.xml</p>
  
  <pre><code>&lt;xom&gt;
      &lt;code1&gt;abc&lt;/code1&gt;
      &lt;code2&gt;def&lt;/code2&gt;
      &lt;code3&gt;ghi&lt;/code3&gt;
  &lt;/xom&gt;
  </code></pre>
  
  <p>Output.xml</p>
  
  <pre><code>&lt;eval&gt;
      &lt;resp&gt;
          &lt;var&gt;code1&lt;/var&gt;
          &lt;ans&gt;abc&lt;/ans&gt;
      &lt;/resp&gt;
      &lt;resp&gt;
          &lt;var&gt;code2&lt;/var&gt;
          &lt;ans&gt;def&lt;/ans&gt;
      &lt;/resp&gt;
      &lt;resp&gt;
          &lt;var&gt;code3&lt;/var&gt;
          &lt;ans&gt;ghi&lt;/ans&gt;
      &lt;/resp&gt;
  &lt;/eval&gt;
  </code></pre>
  
  <p>Thanks in advance!</p>