BaseCharFilter.h

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// Copyright (c) 2009-2014 Alan Wright. All rights reserved.
// Distributable under the terms of either the Apache License (Version 2.0)
// or the GNU Lesser General Public License.
 
#ifndef BASECHARFILTER_H
#define BASECHARFILTER_H
 
#include "CharFilter.h"
 
namespace Lucene {

class LPPAPI BaseCharFilter : public CharFilter {
public:
    BaseCharFilter(const CharStreamPtr& in);
    virtual ~BaseCharFilter();
 
    LUCENE_CLASS(BaseCharFilter);
 
protected:
    IntArray offsets;
    IntArray diffs;
    int32_t size;
 
protected:
    virtual int32_t correct(int32_t currentOff);
 
    int32_t getLastCumulativeDiff();
    void addOffCorrectMap(int32_t off, int32_t cumulativeDiff);
};
 
}
 
#endif