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diff --git a/3rdparty/clucene/src/CLucene/search/Scorer.h b/3rdparty/clucene/src/CLucene/search/Scorer.h
new file mode 100644
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--- /dev/null
+++ b/3rdparty/clucene/src/CLucene/search/Scorer.h
@@ -0,0 +1,80 @@
+/*------------------------------------------------------------------------------
+* 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_Scorer_
+#define _lucene_search_Scorer_
+
+#if defined(_LUCENE_PRAGMA_ONCE)
+# pragma once
+#endif
+
+#include "Similarity.h"
+#include "SearchHeader.h"
+#include "Explanation.h"
+
+CL_NS_DEF(search)
+   /** Expert: Implements scoring for a class of queries. */
+class Scorer: LUCENE_BASE {
+   private:
+      Similarity* similarity;
+   protected:
+      /** Constructs a Scorer. */
+      Scorer(Similarity* similarity) {
+         this->similarity = similarity;
+      }
+	public:
+		virtual ~Scorer(){
+		}
+
+      /** Returns the Similarity implementation used by this scorer. */
+      Similarity* getSimilarity()  const{
+         return this->similarity;
+      }
+
+      /** Scores all documents and passes them to a collector. */
+      void score(HitCollector* hc) {
+         while (next()) {
+            hc->collect(doc(), score());
+         }
+      }
+
+      /** Advance to the next document matching the query.  Returns true iff there
+         * is another match. */
+      virtual bool next() = 0;
+
+      /** Returns the current document number.  Initially invalid, until {@link
+         * #next()} is called the first time. */
+      virtual int32_t doc() const = 0;
+
+      /** Returns the score of the current document.  Initially invalid, until
+         * {@link #next()} is called the first time. */
+      virtual qreal score() = 0;
+
+      /** Skips to the first match beyond the current whose document number is
+         * greater than or equal to <i>target</i>. <p>Returns true iff there is such
+         * a match.  <p>Behaves as if written: <pre>
+         *   boolean skipTo(int32_t target) {
+         *     do {
+         *       if (!next())
+         * 	     return false;
+         *     } while (target > doc());
+         *     return true;
+         *   }
+         * </pre>
+         * Most implementations are considerably more efficient than that.
+         */
+      virtual bool skipTo(int32_t target) = 0;
+
+      /** Returns an explanation of the score for <code>doc</code>. */
+      virtual void explain(int32_t doc, Explanation* ret) = 0;
+
+	  
+      /** Returns an string which explains the object */
+      virtual TCHAR* toString() = 0;
+
+    };
+CL_NS_END
+#endif