You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <search>
      <p ns="0" title="Ultimate Guide to Gideros Studio" snippet="!Status!! &lt;span class=&#039;searchmatch&#039;&gt;Meaning&lt;/span&gt;&#10;" size="5683" wordcount="741" timestamp="2013-04-22T19:15:38Z" />
      <p ns="0" title="Code of Conduct" snippet="...Respecting other people, their work, their contributions and assuming well-&lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; motivation will make community members feel comfortable and safe, and will &#10;...hen they are not written in your mother tongue). Ask for clarifications if &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; seems unclear; remember the first rule - first, assume that people mean wel&#10;" size="7981" wordcount="1285" timestamp="2013-04-22T19:19:10Z" />
    </search>
  </query>
</api>