regular expression text merge
<p>Is this possible in reg-ex?<br><br></p>

<blockquote>
  <p>subject='fox';<br>
  adjective='quick brown';<br>
  verb='jumps';<br>
  text='The &lt;&lt;adjective&gt;&gt; &lt;&lt;subject&gt;&gt; &lt;&lt;verb&gt;&gt; over the lazy dog.'<br></p>
</blockquote>

<p><i>reg-ex would return:</i><br></p>

<blockquote>
  <p>'The quick brown fox jumps over the lazy dog.'</p>
</blockquote>
