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1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 **********************************************************************
5 *   Copyright (C) 2001-2010, International Business Machines
6 *   Corporation and others.  All Rights Reserved.
7 **********************************************************************
8 *   Date        Name        Description
9 *   07/03/01    aliu        Creation.
10 **********************************************************************
11 */
12 #ifndef NORTRANS_H
13 #define NORTRANS_H
14 
15 #include "unicode/utypes.h"
16 
17 #if !UCONFIG_NO_TRANSLITERATION
18 
19 #include "unicode/translit.h"
20 #include "unicode/normalizer2.h"
21 
22 U_NAMESPACE_BEGIN
23 
24 /**
25  * A transliterator that performs normalization.
26  * @author Alan Liu
27  */
28 class NormalizationTransliterator : public Transliterator {
29     const Normalizer2 &fNorm2;
30 
31  public:
32 
33     /**
34      * Destructor.
35      */
36     virtual ~NormalizationTransliterator();
37 
38     /**
39      * Copy constructor.
40      */
41     NormalizationTransliterator(const NormalizationTransliterator&);
42 
43     /**
44      * Transliterator API.
45      * @return    A copy of the object.
46      */
47     virtual Transliterator* clone(void) const;
48 
49     /**
50      * ICU "poor man's RTTI", returns a UClassID for the actual class.
51      */
52     virtual UClassID getDynamicClassID() const;
53 
54     /**
55      * ICU "poor man's RTTI", returns a UClassID for this class.
56      */
57     U_I18N_API static UClassID U_EXPORT2 getStaticClassID();
58 
59  protected:
60 
61     /**
62      * Implements {@link Transliterator#handleTransliterate}.
63      * @param text          the buffer holding transliterated and
64      *                      untransliterated text
65      * @param offset        the start and limit of the text, the position
66      *                      of the cursor, and the start and limit of transliteration.
67      * @param incremental   if true, assume more text may be coming after
68      *                      pos.contextLimit. Otherwise, assume the text is complete.
69      */
70     virtual void handleTransliterate(Replaceable& text, UTransPosition& offset,
71                              UBool isIncremental) const;
72  public:
73 
74     /**
75      * System registration hook.  Public to Transliterator only.
76      */
77     static void registerIDs();
78 
79  private:
80 
81     // Transliterator::Factory methods
82     static Transliterator* _create(const UnicodeString& ID,
83                                    Token context);
84 
85     /**
86      * Constructs a transliterator.  This method is private.
87      * Public users must use the factory method createInstance().
88      */
89     NormalizationTransliterator(const UnicodeString& id, const Normalizer2 &norm2);
90 
91 private:
92     /**
93      * Assignment operator.
94      */
95     NormalizationTransliterator& operator=(const NormalizationTransliterator&);
96 };
97 
98 U_NAMESPACE_END
99 
100 #endif /* #if !UCONFIG_NO_TRANSLITERATION */
101 
102 #endif
103