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diff --git a/3rdparty/clucene/src/CLucene/search/BooleanClause.h b/3rdparty/clucene/src/CLucene/search/BooleanClause.h
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index 000000000..b89cb31d7
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+++ b/3rdparty/clucene/src/CLucene/search/BooleanClause.h
@@ -0,0 +1,90 @@
+/*------------------------------------------------------------------------------
+* Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team
+* 
+* Distributable under the terms of either the Apache License (Version 2.0) or 
+* the GNU Lesser General Public License, as specified in the COPYING file.
+------------------------------------------------------------------------------*/
+#ifndef _lucene_search_BooleanClause_
+#define _lucene_search_BooleanClause_
+
+#if defined(_LUCENE_PRAGMA_ONCE)
+# pragma once
+#endif
+#include "SearchHeader.h"
+
+CL_NS_DEF(search)
+	// A clause in a BooleanQuery. 
+	class BooleanClause:LUCENE_BASE {
+	public:
+		class Compare:public CL_NS_STD(binary_function)<const BooleanClause*,const BooleanClause*,bool>
+		{
+		public:
+			bool operator()( const BooleanClause* val1, const BooleanClause* val2 ) const{
+				return val1->equals(val2);
+			}
+		};
+
+		// The query whose matching documents are combined by the boolean query. 
+		Query* query;
+	   
+        int32_t getClauseCount();
+
+		// If true, documents documents which <i>do not</i>
+		//	match this sub-query will <i>not</i> match the boolean query. 
+		bool required;
+	      
+		// If true, documents documents which <i>do</i>
+		//	match this sub-query will <i>not</i> match the boolean query. 
+		bool prohibited;
+
+		bool deleteQuery;
+	      
+		// Constructs a BooleanClause with query <code>q</code>, required
+		//	<code>r</code> and prohibited <code>p</code>.  
+		BooleanClause(Query* q, const bool DeleteQuery,const bool req, const bool p):
+			query(q),
+			required(req),
+			prohibited(p),
+			deleteQuery(DeleteQuery)
+		{
+		}
+
+		BooleanClause(const BooleanClause& clone):
+#if defined(LUCENE_ENABLE_MEMLEAKTRACKING)
+#elif defined(LUCENE_ENABLE_REFCOUNT)
+#else
+			LuceneVoidBase(),
+#endif
+			query(clone.query->clone()),
+			required(clone.required),
+			prohibited(clone.prohibited),
+			deleteQuery(true)
+		{
+		}
+
+		BooleanClause* clone() const{
+			BooleanClause* ret = _CLNEW BooleanClause(*this);
+			return ret;
+		}
+
+		~BooleanClause(){
+			if ( deleteQuery )
+				_CLDELETE( query );
+		}
+
+		/** Returns true iff <code>o</code> is equal to this. */
+		bool equals(const BooleanClause* other) const {
+			return this->query->equals(other->query)
+				&& (this->required == other->required)
+				&& (this->prohibited == other->prohibited);
+		}
+
+		size_t hashCode() const{
+			return query->hashCode() ^ (this->required?1:0) ^ (this->prohibited?2:0);
+		}
+	};
+
+	
+CL_NS_END
+#endif
+