/B> string.
(Start with a maximum-valued string to look up the last index in the array,
such as a max-length string of 0xff bytes.)
<B>JSLL()</B> is typically used to <I>begin</I> a reverse-sorted-order
scan of the valid indexes in a JudySL array.
<P>
<DT><A name="JSLP"><B>JSLP(PValue, PJSLArray, Index)</B></A> // <A href="JudySL_funcs_3.htm#JudySLPrev">JudySLPrev()</A></DT>
<DD>
Search (exclusive) for the previous index present that is less than the
passed <B>Index</B> string.
<B>JSLP()</B> is typically us