title: Convert URLs into HTML links using sed?
body: <p>I'm wondering if it's possible (recommended might be the better word) to use sed to convert URLs into HTML hyperlinks in a document. Therefore, it would look for things like:</p>
  
  <pre><code>http://something.com
  </code></pre>
  
  <p>And replace them with</p>
  
  <pre><code>&lt;a href="http://something.com"&gt;http://something.com&lt;/a&gt;
  </code></pre>
  
  <p>Any thoughts? Could the same also be done for email addresses? </p>