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POXPATH Axes - Issues
 

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    <p>XML structure:</p> <pre><code>&lt;units&gt; &lt;unit&gt; &lt;lesson&gt; &lt;name&gt;Sample 1&lt;/name&gt; &lt;sections&gt; &lt;section type="IN"&gt; &lt;title&gt; Sample Title 1 &lt;/title&gt; &lt;/section&gt; &lt;/sections&gt; &lt;/lesson&gt; &lt;lesson&gt; &lt;name&gt;Sample 2&lt;/name&gt; &lt;sections&gt; &lt;section type="OF"&gt; &lt;title&gt; Sample Title 2 &lt;/title&gt; &lt;/section&gt; &lt;/sections&gt; &lt;/lesson&gt; &lt;lesson&gt; &lt;name&gt;Sample 3&lt;/name&gt; &lt;sections&gt; &lt;section type="IN"&gt; &lt;title&gt; Sample Title 3&lt;/title&gt; &lt;/section&gt; &lt;/sections&gt; &lt;/lesson&gt; &lt;lesson&gt; &lt;name&gt;Sample 4&lt;/name&gt; &lt;sections&gt; &lt;section type="AS"&gt; &lt;title&gt; Sample Title 4&lt;/title&gt; &lt;/section&gt; &lt;/sections&gt; &lt;/lesson&gt; &lt;lesson&gt; &lt;name&gt;Sample 5&lt;/name&gt; &lt;sections&gt; &lt;section type="IN"&gt; &lt;title&gt; Sample Title 5&lt;/title&gt; &lt;/section&gt; &lt;/sections&gt; &lt;/lesson&gt; &lt;/unit&gt; &lt;/units&gt; </code></pre> <p>My requirement is to get the values of title element and display as follows (Grouping similar data and display)</p> <pre><code>IN: Sample Title 1 Sample Title 3 Sample Title 5 OF: Sample Title 2 AS: Sample Title 5 </code></pre> <p>I have used following-sibling option to get the expected output. Since the XML structure is huge(I have pasted only the snippet), I cannot hard-code the path using ../../ and all in XSLT. Please help me in getting the expected output.</p>
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    1. COGrouping using "the following-sibling option" is O(N^2) in time complexity -- this is *especially slow* for large XML documents as in your case. Learn, understand and use the more efficient Muenchian method for grouping. Read more about it here: http://www.jenitennison.com/xslt/grouping/muenchian.html
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      1. USDimitre Novatchev
 

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