title: Regular Expression to match every new line character (\n) inside a <content> tag
body: <p>I'm looking for a regular expression to match every new line character (<code>\n</code>) inside a XML tag which is <code>&lt;content&gt;</code>, or inside any tag which is inside that <code>&lt;content&gt;</code> tag, for example :</p>
  
  <pre><code>&lt;blog&gt;
  &lt;text&gt;
  (Do NOT match new lines here)
  &lt;/text&gt;
  &lt;content&gt;
  (DO match new lines here)
  &lt;p&gt;
  (Do match new lines here)
  &lt;/p&gt;
  &lt;/content&gt;
  (Do NOT match new lines here)
  &lt;content&gt;
  (DO match new lines here)
  &lt;/content&gt;
  </code></pre>