<dt id="prefilter"><b>prefilter</b></dt>
<dd>

<p>A code reference that will be applied to the source before tidying. It is expected to take the full content as a string in its input, and output the transformed content.</p>

</dd>
<dt id="postfilter"><b>postfilter</b></dt>
<dd>

<p>A code reference that will be applied to the tidied result before outputting. It is expected to take the full content as a string in its input, and output the transformed content.</p>

<p>Note: A convenient way to check the funct