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BaseCharFilter.h
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1 // Copyright (c) 2009-2011 Alan Wright. All rights reserved.
3 // Distributable under the terms of either the Apache License (Version 2.0)
4 // or the GNU Lesser General Public License.
6
7 #ifndef BASECHARFILTER_H
8 #define BASECHARFILTER_H
9
10 #include "CharFilter.h"
11
12 namespace Lucene
13 {
16 class LPPAPI BaseCharFilter : public CharFilter
17 {
18 public:
19 BaseCharFilter(CharStreamPtr in);
20 virtual ~BaseCharFilter();
21
22 LUCENE_CLASS(BaseCharFilter);
23
24 protected:
25 IntArray offsets;
26 IntArray diffs;
27 int32_t size;
28
29 protected:
31 virtual int32_t correct(int32_t currentOff);
32
33 int32_t getLastCumulativeDiff();
34 void addOffCorrectMap(int32_t off, int32_t cumulativeDiff);
35 };
36 }
37
38 #endif

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