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CharTokenizer.h
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1 // Copyright (c) 2009-2014 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 CHARTOKENIZER_H
8 #define CHARTOKENIZER_H
9
10 #include "Tokenizer.h"
11
12 namespace Lucene {
13
15 class LPPAPI CharTokenizer : public Tokenizer {
16 public:
17 CharTokenizer(const ReaderPtr& input);
18 CharTokenizer(const AttributeSourcePtr& source, const ReaderPtr& input);
19 CharTokenizer(const AttributeFactoryPtr& factory, const ReaderPtr& input);
20 virtual ~CharTokenizer();
21
22 LUCENE_CLASS(CharTokenizer);
23
24 protected:
25 int32_t offset;
26 int32_t bufferIndex;
27 int32_t dataLen;
28
29 static const int32_t MAX_WORD_LEN;
30 static const int32_t IO_BUFFER_SIZE;
31
32 CharArray ioBuffer;
33 TermAttributePtr termAtt;
34 OffsetAttributePtr offsetAtt;
35
36 public:
37 virtual bool incrementToken();
38 virtual void end();
39 virtual void reset(const ReaderPtr& input);
40
41 protected:
45 virtual bool isTokenChar(wchar_t c) = 0;
46
49 virtual wchar_t normalize(wchar_t c);
50 };
51
52 }
53
54 #endif
Lucene::CharTokenizer::bufferIndex
int32_t bufferIndex
Definition: CharTokenizer.h:26
Lucene::CharTokenizer::offsetAtt
OffsetAttributePtr offsetAtt
Definition: CharTokenizer.h:34
Lucene::ReaderPtr
boost::shared_ptr< Reader > ReaderPtr
Definition: LuceneTypes.h:547
Lucene::CharTokenizer::ioBuffer
CharArray ioBuffer
Definition: CharTokenizer.h:32
Lucene::AttributeFactoryPtr
boost::shared_ptr< AttributeFactory > AttributeFactoryPtr
Definition: LuceneTypes.h:519
Lucene::AttributeSourcePtr
boost::shared_ptr< AttributeSource > AttributeSourcePtr
Definition: LuceneTypes.h:520
Lucene::TermAttributePtr
boost::shared_ptr< TermAttribute > TermAttributePtr
Definition: LuceneTypes.h:58
Lucene::CharTokenizer::IO_BUFFER_SIZE
static const int32_t IO_BUFFER_SIZE
Definition: CharTokenizer.h:30
Tokenizer.h
Lucene::CharTokenizer::termAtt
TermAttributePtr termAtt
Definition: CharTokenizer.h:33
Lucene::CharTokenizer::dataLen
int32_t dataLen
Definition: CharTokenizer.h:27
LUCENE_CLASS
#define LUCENE_CLASS(Name)
Definition: LuceneObject.h:24
Lucene
Definition: AbstractAllTermDocs.h:12
Lucene::OffsetAttributePtr
boost::shared_ptr< OffsetAttribute > OffsetAttributePtr
Definition: LuceneTypes.h:40
Lucene::CharTokenizer
An abstract base class for simple, character-oriented tokenizers.
Definition: CharTokenizer.h:15
Lucene::CharTokenizer::MAX_WORD_LEN
static const int32_t MAX_WORD_LEN
Definition: CharTokenizer.h:29
Lucene::Tokenizer
A Tokenizer is a TokenStream whose input is a Reader.
Definition: Tokenizer.h:20

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