"sec-7" >

<h2>Design</h2>
<ul class="org-ul">
<li>Bijection
</li>
<li>Streams
</li>
</ul>

</section>
<section id="sec-7-1" >

<h3>Bijection</h3>
<ul class="org-ul">
<li>Define internal types to represent the data
</li>
<li>No Semantic Actions. 
</li>
<li>Generate output. 
</li>
</ul>

</section>
<section id="sec-7-1-1" >

<h4>Structures</h4>
<center><table>  <tr>
<td width="40%">
<div class="org-src-container">

<pre  class="src src-c">dns_header={
   id uint16
   qr uint1
   opcode uint4
   aa uint1 
   