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diff --git a/debian/htdig/htdig-3.2.0b6/htsearch/FuzzyExpander.h b/debian/htdig/htdig-3.2.0b6/htsearch/FuzzyExpander.h
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+#ifndef _FuzzyExpander_h_
+#define _FuzzyExpander_h_
+
+//
+// FuzzyExpander.h
+//
+// FuzzyExpander: (abstract) root of a family of query factories.
+//                They make fuzzy queries for given words
+//                and store word weights to results
+//                by using the existing fuzzy algorithms
+//
+// Part of the ht://Dig package   <http://www.htdig.org/>
+// Copyright (c) 1995-2004 The ht://Dig Group
+// For copyright details, see the file COPYING in your distribution
+// or the GNU Library General Public License (LGPL) version 2 or later
+// <http://www.gnu.org/copyleft/lgpl.html>
+//
+// $Id: FuzzyExpander.h,v 1.4 2004/05/28 13:15:24 lha Exp $
+//
+
+//
+// for details about the basic architectural pattern see the book:
+// Design Patterns, by the infamous GoF
+// Factory pattern
+//
+
+#ifdef HAVE_CONFIG_H
+#include "htconfig.h"
+#endif
+
+#include "htString.h"
+
+class Query;
+
+// abstract
+class FuzzyExpander
+{
+public:
+	FuzzyExpander() {}
+	virtual ~FuzzyExpander() {}
+
+	// generate a query for this word
+	virtual Query *MakeQuery(const String &word) = 0;
+};
+
+#endif