Swift html parse , find , manipolate and export
<p>I have a complex HTML and I want to parse, find and manipulate some elements.</p>

<p>Can some one illustrate how to do with this example HTML?</p>

<pre><code>"&lt;!DOCTYPE html&gt;" +
"&lt;html&gt;" +
"&lt;head&gt;" +
"&lt;title&gt;Page Title&lt;/title&gt;" +
"&lt;/head&gt;" +
"&lt;body&gt;" +
"&lt;h1&gt;This is a Heading&lt;/h1&gt;" +
"&lt;p class='paragraph'&gt;This is a paragraph.&lt;/p&gt;" +
"&lt;p class='paragraph'&gt;This is a paragraph 2.&lt;/p&gt;" +
"&lt;/body&gt;" +
"&lt;/html&gt;";
</code></pre>