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1 /*
2 **********************************************************************
3 *   Copyright (C) 2001-2010, International Business Machines
4 *   Corporation and others.  All Rights Reserved.
5 **********************************************************************
6 *   Date        Name        Description
7 *   07/03/01    aliu        Creation.
8 **********************************************************************
9 */
10 #ifndef NORTRANS_H
11 #define NORTRANS_H
12 
13 #include "unicode/utypes.h"
14 
15 #if !UCONFIG_NO_TRANSLITERATION
16 
17 #include "unicode/translit.h"
18 #include "unicode/normalizer2.h"
19 
20 U_NAMESPACE_BEGIN
21 
22 /**
23  * A transliterator that performs normalization.
24  * @author Alan Liu
25  */
26 class NormalizationTransliterator : public Transliterator {
27     const Normalizer2 &fNorm2;
28 
29  public:
30 
31     /**
32      * Destructor.
33      */
34     virtual ~NormalizationTransliterator();
35 
36     /**
37      * Copy constructor.
38      */
39     NormalizationTransliterator(const NormalizationTransliterator&);
40 
41     /**
42      * Transliterator API.
43      * @return    A copy of the object.
44      */
45     virtual Transliterator* clone(void) const;
46 
47     /**
48      * ICU "poor man's RTTI", returns a UClassID for the actual class.
49      */
50     virtual UClassID getDynamicClassID() const;
51 
52     /**
53      * ICU "poor man's RTTI", returns a UClassID for this class.
54      */
55     U_I18N_API static UClassID U_EXPORT2 getStaticClassID();
56 
57  protected:
58 
59     /**
60      * Implements {@link Transliterator#handleTransliterate}.
61      * @param text          the buffer holding transliterated and
62      *                      untransliterated text
63      * @param offset        the start and limit of the text, the position
64      *                      of the cursor, and the start and limit of transliteration.
65      * @param incremental   if true, assume more text may be coming after
66      *                      pos.contextLimit. Otherwise, assume the text is complete.
67      */
68     virtual void handleTransliterate(Replaceable& text, UTransPosition& offset,
69                              UBool isIncremental) const;
70  public:
71 
72     /**
73      * System registration hook.  Public to Transliterator only.
74      */
75     static void registerIDs();
76 
77  private:
78 
79     // Transliterator::Factory methods
80     static Transliterator* _create(const UnicodeString& ID,
81                                    Token context);
82 
83     /**
84      * Constructs a transliterator.  This method is private.
85      * Public users must use the factory method createInstance().
86      */
87     NormalizationTransliterator(const UnicodeString& id, const Normalizer2 &norm2);
88 
89 private:
90     /**
91      * Assignment operator.
92      */
93     NormalizationTransliterator& operator=(const NormalizationTransliterator&);
94 };
95 
96 U_NAMESPACE_END
97 
98 #endif /* #if !UCONFIG_NO_TRANSLITERATION */
99 
100 #endif
101