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POBest way to "fix" malformed html for use in an xsl transform
 

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  1. POBest way to "fix" malformed html for use in an xsl transform
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    <p>I have an input xml document that contains mal-formed html which has been xml encoded. i.e. the xml document itself is technically valid.</p> <p>Now I am applying an xsl transform to the xml which output well-formed xhtml5 but contains the mal-formed html.</p> <p>Examples of the bad html:</p> <ul> <li>html, head and body tags in html fragments.</li> <li>font tags</li> <li>mismatched quotes</li> <li>unclosed tags</li> <li>extra close tags with no matching open</li> <li>close tags in the wrong order (e.g. <code>&lt;b&gt;&lt;u&gt;text&lt;/b&gt;&lt;/u&gt;</code>)</li> </ul> <p>Now in my situation I actually don't care that the html is mal-formed - I only care that <em>my</em> closing tags match my opening tags, regardless of what goes in between.</p> <p>So my question is - what is the best way to either</p> <ol> <li>Clean up the html sufficiently that it does not affect other tags (preferably from within the transform itself)</li> <li>or somehow mark a closetag so that html5 compatible browsers recognise it as matching a particular open tag regardless of whatever nasty markup may be in between.</li> </ol> <p>for 2. I have no ideas at all. I have a couple of ideas for 1. such as calling an external tool like tidy or using a .NET sgml parser</p> <p>.NET xsl scripts (<code>msxsl:script</code>) are acceptable, if undesirable.</p> <p>Example source:</p> <pre><code>&lt;xml&gt; &amp;lt;b&amp;gt;&amp;lt;u&amp;gt;bad html&amp;lt;/b&amp;gt;&amp;lt;/u&amp;gt; &lt;xml&gt; </code></pre> <p>Example output:</p> <pre><code>&lt;div id="MyDiv"&gt; &lt;b&gt;&lt;u&gt;bad html&lt;/b&gt;&lt;/u&gt; &lt;/div&gt; &lt;!-- this /div absolutly must match the opening div regardless of what might be in the bad html --&gt; </code></pre> <p>What other approaches are available?</p> <p>C#, VS2012, xslt 1.0 only</p>
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    1. COIs your 'mal-formed' html actually within a CDATA tag, by any chance? It may be helpful to include a small sample of your XML in your question, along with an example of what you expect to output. Thanks!
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    2. COit is xml encoded - so `&lt;html&gt;` etc.
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