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<HTML>
<HEAD>
<TITLE>WWW::Search::OpenDirectory - class for searching dmoz.org!</TITLE>
<LINK REL="stylesheet" HREF="../../../../Active.css" TYPE="text/css">
<LINK REV="made" HREF="mailto:">
</HEAD>
<BODY>
<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100%>
<TR><TD CLASS=block VALIGN=MIDDLE WIDTH=100% BGCOLOR="#cccccc">
<STRONG><P CLASS=block> WWW::Search::OpenDirectory - class for searching dmoz.org!</P></STRONG>
</TD></TR>
</TABLE>
<A NAME="__index__"></A>
<!-- INDEX BEGIN -->
<UL>
<LI><A HREF="#name">NAME</A></LI><LI><A HREF="#supportedplatforms">SUPPORTED PLATFORMS</A></LI>
<LI><A HREF="#synopsis">SYNOPSIS</A></LI>
<LI><A HREF="#description">DESCRIPTION</A></LI>
<LI><A HREF="#see also">SEE ALSO</A></LI>
<LI><A HREF="#how does it work">HOW DOES IT WORK?</A></LI>
<LI><A HREF="#author">AUTHOR</A></LI>
<LI><A HREF="#testing">TESTING</A></LI>
<LI><A HREF="#legalese">LEGALESE</A></LI>
<LI><A HREF="#version history">VERSION HISTORY</A></LI>
</UL>
<!-- INDEX END -->
<HR>
<P>
<H1><A NAME="name">NAME</A></H1>
<P>WWW::Search::OpenDirectory - class for searching dmoz.org!</P>
<P>
<HR>
<H1><A NAME="supportedplatforms">SUPPORTED PLATFORMS</A></H1>
<UL>
<LI>Linux</LI>
<LI>Solaris</LI>
<LI>Windows</LI>
</UL>
<HR>
<H1><A NAME="synopsis">SYNOPSIS</A></H1>
<PRE>
require WWW::Search;
$search = new WWW::Search('OpenDirectory');</PRE>
<P>
<HR>
<H1><A NAME="description">DESCRIPTION</A></H1>
<P>This class uses the Open Directory engine <EM><A HREF="http://dmoz.org">http://dmoz.org</A></EM>.
Yahoo! type directory that is user maintained. Very nice!</P>
<P>Seperate search terms with 'and' to include all words. Accepts
double quotes for phrase searching: ``Tour de France''</P>
<P>This class exports no public interface; all interaction should
be done through WWW::Search objects.</P>
<P>
<HR>
<H1><A NAME="see also">SEE ALSO</A></H1>
<P>To make new back-ends, see <A HREF="../../../../site/lib/WWW/Search.html">the WWW::Search manpage</A>,
or the specialized AltaVista searches described in options.</P>
<P>
<HR>
<H1><A NAME="how does it work">HOW DOES IT WORK?</A></H1>
<P><CODE>native_setup_search</CODE> is called before we do anything.
It initializes our private variables (which all begin with underscores)
and sets up a URL to the first results page in <CODE>{_next_url}</CODE>.</P>
<P><CODE>native_retrieve_some</CODE> is called (from <CODE>WWW::Search::retrieve_some</CODE>)
whenever more hits are needed. It calls the LWP library
to fetch the page specified by <CODE>{_next_url}</CODE>.
It parses this page, appending any search hits it finds to
<CODE>{cache}</CODE>. If it finds a ``next'' button in the text,
it sets <CODE>{_next_url}</CODE> to point to the page for the next
set of results, otherwise it sets it to undef to indicate we're done.</P>
<P>
<HR>
<H1><A NAME="author">AUTHOR</A></H1>
<P><CODE>WWW::Search::OpenDirectory</CODE> is written and maintained
by Jim Smyser - <<A HREF="mailto:jsmyser@bigfoot.com">jsmyser@bigfoot.com</A>>.</P>
<P>
<HR>
<H1><A NAME="testing">TESTING</A></H1>
<P>This module adheres to the <CODE>WWW::Search</CODE> test suite mechanism.
See $TEST_CASES below.</P>
<P>
<HR>
<H1><A NAME="legalese">LEGALESE</A></H1>
<P>Copyright (c) 1996-1999 University of Southern California.
All rights reserved.
</P>
<PRE>
THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.</PRE>
<P>
<HR>
<H1><A NAME="version history">VERSION HISTORY</A></H1>
<P>2.01
New test mechanism.</P>
<P>1.02
Format changes.</P>
<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100%>
<TR><TD CLASS=block VALIGN=MIDDLE WIDTH=100% BGCOLOR="#cccccc">
<STRONG><P CLASS=block> WWW::Search::OpenDirectory - class for searching dmoz.org!</P></STRONG>
</TD></TR>
</TABLE>
</BODY>
</HTML>