p-symbol"><A NAME="produce-digest"></A><TT><STRONG>produce-digest</STRONG> <EM>digester</EM> <EM><TT>&key</TT></EM> <EM>digest</EM> <EM>digest-start</EM> =&gt; <EM>digest</EM></TT><BR /></DIV><P>Return the digest of the data processed by <EM>digester</EM> so far.
The internal state of <EM>digester</EM> is modified; if you wish to retain
a copy of the digest, you must call <A HREF="#copy-digest" STYLE="symbol">copy-digest</A>.</P><P>If <EM>digest</EM> is provided, the computed digest will be placed
into <EM>