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comparison: intl/icu/source/common/unicode/unifunct.h
intl/icu/source/common/unicode/unifunct.h
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| -1:000000000000 | 0:9901f6378d44 |
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| 1 /* | |
| 2 ********************************************************************** | |
| 3 * Copyright (c) 2002-2005, International Business Machines Corporation | |
| 4 * and others. All Rights Reserved. | |
| 5 ********************************************************************** | |
| 6 * Date Name Description | |
| 7 * 01/14/2002 aliu Creation. | |
| 8 ********************************************************************** | |
| 9 */ | |
| 10 #ifndef UNIFUNCT_H | |
| 11 #define UNIFUNCT_H | |
| 12 | |
| 13 #include "unicode/utypes.h" | |
| 14 #include "unicode/uobject.h" | |
| 15 | |
| 16 /** | |
| 17 * \file | |
| 18 * \brief C++ API: Unicode Functor | |
| 19 */ | |
| 20 | |
| 21 U_NAMESPACE_BEGIN | |
| 22 | |
| 23 class UnicodeMatcher; | |
| 24 class UnicodeReplacer; | |
| 25 class TransliterationRuleData; | |
| 26 | |
| 27 /** | |
| 28 * <code>UnicodeFunctor</code> is an abstract base class for objects | |
| 29 * that perform match and/or replace operations on Unicode strings. | |
| 30 * @author Alan Liu | |
| 31 * @stable ICU 2.4 | |
| 32 */ | |
| 33 class U_COMMON_API UnicodeFunctor : public UObject { | |
| 34 | |
| 35 public: | |
| 36 | |
| 37 /** | |
| 38 * Destructor | |
| 39 * @stable ICU 2.4 | |
| 40 */ | |
| 41 virtual ~UnicodeFunctor(); | |
| 42 | |
| 43 /** | |
| 44 * Return a copy of this object. All UnicodeFunctor objects | |
| 45 * have to support cloning in order to allow classes using | |
| 46 * UnicodeFunctor to implement cloning. | |
| 47 * @stable ICU 2.4 | |
| 48 */ | |
| 49 virtual UnicodeFunctor* clone() const = 0; | |
| 50 | |
| 51 /** | |
| 52 * Cast 'this' to a UnicodeMatcher* pointer and return the | |
| 53 * pointer, or null if this is not a UnicodeMatcher*. Subclasses | |
| 54 * that mix in UnicodeMatcher as a base class must override this. | |
| 55 * This protocol is required because a pointer to a UnicodeFunctor | |
| 56 * cannot be cast to a pointer to a UnicodeMatcher, since | |
| 57 * UnicodeMatcher is a mixin that does not derive from | |
| 58 * UnicodeFunctor. | |
| 59 * @stable ICU 2.4 | |
| 60 */ | |
| 61 virtual UnicodeMatcher* toMatcher() const; | |
| 62 | |
| 63 /** | |
| 64 * Cast 'this' to a UnicodeReplacer* pointer and return the | |
| 65 * pointer, or null if this is not a UnicodeReplacer*. Subclasses | |
| 66 * that mix in UnicodeReplacer as a base class must override this. | |
| 67 * This protocol is required because a pointer to a UnicodeFunctor | |
| 68 * cannot be cast to a pointer to a UnicodeReplacer, since | |
| 69 * UnicodeReplacer is a mixin that does not derive from | |
| 70 * UnicodeFunctor. | |
| 71 * @stable ICU 2.4 | |
| 72 */ | |
| 73 virtual UnicodeReplacer* toReplacer() const; | |
| 74 | |
| 75 /** | |
| 76 * Return the class ID for this class. This is useful only for | |
| 77 * comparing to a return value from getDynamicClassID(). | |
| 78 * @return The class ID for all objects of this class. | |
| 79 * @stable ICU 2.0 | |
| 80 */ | |
| 81 static UClassID U_EXPORT2 getStaticClassID(void); | |
| 82 | |
| 83 /** | |
| 84 * Returns a unique class ID <b>polymorphically</b>. This method | |
| 85 * is to implement a simple version of RTTI, since not all C++ | |
| 86 * compilers support genuine RTTI. Polymorphic operator==() and | |
| 87 * clone() methods call this method. | |
| 88 * | |
| 89 * <p>Concrete subclasses of UnicodeFunctor should use the macro | |
| 90 * UOBJECT_DEFINE_RTTI_IMPLEMENTATION from uobject.h to | |
| 91 * provide definitios getStaticClassID and getDynamicClassID. | |
| 92 * | |
| 93 * @return The class ID for this object. All objects of a given | |
| 94 * class have the same class ID. Objects of other classes have | |
| 95 * different class IDs. | |
| 96 * @stable ICU 2.4 | |
| 97 */ | |
| 98 virtual UClassID getDynamicClassID(void) const = 0; | |
| 99 | |
| 100 /** | |
| 101 * Set the data object associated with this functor. The data | |
| 102 * object provides context for functor-to-standin mapping. This | |
| 103 * method is required when assigning a functor to a different data | |
| 104 * object. This function MAY GO AWAY later if the architecture is | |
| 105 * changed to pass data object pointers through the API. | |
| 106 * @internal ICU 2.1 | |
| 107 */ | |
| 108 virtual void setData(const TransliterationRuleData*) = 0; | |
| 109 | |
| 110 protected: | |
| 111 | |
| 112 /** | |
| 113 * Since this class has pure virtual functions, | |
| 114 * a constructor can't be used. | |
| 115 * @stable ICU 2.0 | |
| 116 */ | |
| 117 /*UnicodeFunctor();*/ | |
| 118 | |
| 119 }; | |
| 120 | |
| 121 /*inline UnicodeFunctor::UnicodeFunctor() {}*/ | |
| 122 | |
| 123 U_NAMESPACE_END | |
| 124 | |
| 125 #endif |
