searchengine/oss/cl/clucene/src/clucene/highlighter/TextFragment.h
changeset 7 a5fbfefd615f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/searchengine/oss/cl/clucene/src/clucene/highlighter/TextFragment.h	Fri Jun 11 14:43:47 2010 +0300
@@ -0,0 +1,90 @@
+/**
+ * Copyright 2002-2004 The Apache Software Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _lucene_search_highlight_textfragment_
+#define _lucene_search_highlight_textfragment_
+
+#if defined(_LUCENE_PRAGMA_ONCE)
+# pragma once
+#endif
+
+#include "CLucene/util/StringBuffer.h"
+#include "CLucene/util/VoidList.h"
+
+CL_NS_DEF2(search,highlight)
+
+/**
+ * Low-level class used to record information about a section of a document 
+ * with a score.
+ */
+class TextFragment:LUCENE_BASE
+{
+	int32_t _fragNum;
+	int32_t _textStartPos;
+	int32_t _textEndPos;
+	float_t _score;
+
+public:
+	TextFragment(int32_t textStartPos, int32_t fragNum);
+	~TextFragment();
+
+	void setScore(float_t score);
+	float_t getScore() const;
+
+	int32_t textEndPos(){ return _textEndPos; }
+	void setTextEndPos(int32_t val){ _textEndPos = val; }
+
+	/**
+	 * @param frag2 Fragment to be merged into this one
+	 */
+	void merge(const TextFragment * frag2);
+
+	/**
+	 * @param fragment 
+	 * @return true if this fragment follows the one passed
+	 */
+	bool follows(const TextFragment * fragment) const;
+
+	/**
+	 * @return the fragment sequence number
+	 */
+	int32_t getFragNum() const;
+
+	/* Returns the marked-up text for this text fragment 
+	 */
+	TCHAR* toString(CL_NS(util)::StringBuffer* buffer);
+
+	/**
+	 * Compare weighted terms, according to the term text.
+	 * @todo Do we have to take boost factors into account
+	 */
+	class Compare:LUCENE_BASE, public CL_NS(util)::Compare::_base //<TextFragment*>
+	{
+	public:
+	//todo: this should be more efficient, but will be using a hash table soon, anyway
+		bool operator()( TextFragment* t1, TextFragment* t2 ) const;
+		size_t operator()( TextFragment* t ) const;
+	};
+};
+
+/**
+ * Text fragment list.
+ */
+//typedef CL_NS(util)::CLSetList<TextFragment*,TextFragment::Compare,CL_NS(util)::Deletor::Object<TextFragment> > TextFragmentList;
+
+CL_NS_END2
+
+#endif