/src/icu/source/i18n/unicode/currpinf.h
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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) 2009-2015, International Business Machines Corporation and    *  | 
6  |  |  * others. All Rights Reserved.                                                *  | 
7  |  |  *******************************************************************************  | 
8  |  |  */  | 
9  |  | #ifndef CURRPINF_H  | 
10  |  | #define CURRPINF_H  | 
11  |  |  | 
12  |  | #include "unicode/utypes.h"  | 
13  |  |  | 
14  |  | #if U_SHOW_CPLUSPLUS_API  | 
15  |  |  | 
16  |  | /**  | 
17  |  |  * \file  | 
18  |  |  * \brief C++ API: Currency Plural Information used by Decimal Format  | 
19  |  |  */  | 
20  |  |  | 
21  |  | #if !UCONFIG_NO_FORMATTING  | 
22  |  |  | 
23  |  | #include "unicode/unistr.h"  | 
24  |  |  | 
25  |  | U_NAMESPACE_BEGIN  | 
26  |  |  | 
27  |  | class Locale;  | 
28  |  | class PluralRules;  | 
29  |  | class Hashtable;  | 
30  |  |  | 
31  |  | /**  | 
32  |  |  * This class represents the information needed by   | 
33  |  |  * DecimalFormat to format currency plural,   | 
34  |  |  * such as "3.00 US dollars" or "1.00 US dollar".   | 
35  |  |  * DecimalFormat creates for itself an instance of  | 
36  |  |  * CurrencyPluralInfo from its locale data.    | 
37  |  |  * If you need to change any of these symbols, you can get the  | 
38  |  |  * CurrencyPluralInfo object from your   | 
39  |  |  * DecimalFormat and modify it.  | 
40  |  |  *  | 
41  |  |  * Following are the information needed for currency plural format and parse:  | 
42  |  |  * locale information,  | 
43  |  |  * plural rule of the locale,  | 
44  |  |  * currency plural pattern of the locale.  | 
45  |  |  *  | 
46  |  |  * @stable ICU 4.2  | 
47  |  |  */  | 
48  |  | class  U_I18N_API CurrencyPluralInfo : public UObject { | 
49  |  | public:  | 
50  |  |  | 
51  |  |     /**  | 
52  |  |      * Create a CurrencyPluralInfo object for the default locale.  | 
53  |  |      * @param status output param set to success/failure code on exit  | 
54  |  |      * @stable ICU 4.2  | 
55  |  |      */  | 
56  |  |     CurrencyPluralInfo(UErrorCode& status);  | 
57  |  |  | 
58  |  |     /**  | 
59  |  |      * Create a CurrencyPluralInfo object for the given locale.  | 
60  |  |      * @param locale the locale  | 
61  |  |      * @param status output param set to success/failure code on exit  | 
62  |  |      * @stable ICU 4.2  | 
63  |  |      */  | 
64  |  |     CurrencyPluralInfo(const Locale& locale, UErrorCode& status);   | 
65  |  |  | 
66  |  |     /**  | 
67  |  |      * Copy constructor  | 
68  |  |      *  | 
69  |  |      * @stable ICU 4.2  | 
70  |  |      */  | 
71  |  |     CurrencyPluralInfo(const CurrencyPluralInfo& info);  | 
72  |  |  | 
73  |  |  | 
74  |  |     /**  | 
75  |  |      * Assignment operator  | 
76  |  |      *  | 
77  |  |      * @stable ICU 4.2  | 
78  |  |      */  | 
79  |  |     CurrencyPluralInfo& operator=(const CurrencyPluralInfo& info);  | 
80  |  |  | 
81  |  |  | 
82  |  |     /**  | 
83  |  |      * Destructor  | 
84  |  |      *  | 
85  |  |      * @stable ICU 4.2  | 
86  |  |      */  | 
87  |  |     virtual ~CurrencyPluralInfo();  | 
88  |  |  | 
89  |  |  | 
90  |  |     /**  | 
91  |  |      * Equal operator.  | 
92  |  |      *  | 
93  |  |      * @stable ICU 4.2  | 
94  |  |      */  | 
95  |  |     bool operator==(const CurrencyPluralInfo& info) const;  | 
96  |  |  | 
97  |  |  | 
98  |  |     /**  | 
99  |  |      * Not equal operator  | 
100  |  |      *  | 
101  |  |      * @stable ICU 4.2  | 
102  |  |      */  | 
103  |  |     bool operator!=(const CurrencyPluralInfo& info) const;  | 
104  |  |  | 
105  |  |  | 
106  |  |     /**  | 
107  |  |      * Clone  | 
108  |  |      *  | 
109  |  |      * @stable ICU 4.2  | 
110  |  |      */  | 
111  |  |     CurrencyPluralInfo* clone() const;  | 
112  |  |  | 
113  |  |  | 
114  |  |     /**  | 
115  |  |      * Gets plural rules of this locale, used for currency plural format  | 
116  |  |      *  | 
117  |  |      * @return plural rule  | 
118  |  |      * @stable ICU 4.2  | 
119  |  |      */  | 
120  |  |     const PluralRules* getPluralRules() const;  | 
121  |  |  | 
122  |  |     /**  | 
123  |  |      * Given a plural count, gets currency plural pattern of this locale,   | 
124  |  |      * used for currency plural format  | 
125  |  |      *  | 
126  |  |      * @param  pluralCount currency plural count  | 
127  |  |      * @param  result      output param to receive the pattern  | 
128  |  |      * @return a currency plural pattern based on plural count  | 
129  |  |      * @stable ICU 4.2  | 
130  |  |      */  | 
131  |  |     UnicodeString& getCurrencyPluralPattern(const UnicodeString& pluralCount,  | 
132  |  |                                             UnicodeString& result) const;   | 
133  |  |  | 
134  |  |     /**  | 
135  |  |      * Get locale   | 
136  |  |      *  | 
137  |  |      * @return locale  | 
138  |  |      * @stable ICU 4.2  | 
139  |  |      */  | 
140  |  |     const Locale& getLocale() const;  | 
141  |  |  | 
142  |  |     /**  | 
143  |  |      * Set plural rules.  | 
144  |  |      * The plural rule is set when CurrencyPluralInfo  | 
145  |  |      * instance is created.  | 
146  |  |      * You can call this method to reset plural rules only if you want  | 
147  |  |      * to modify the default plural rule of the locale.  | 
148  |  |      *  | 
149  |  |      * @param ruleDescription new plural rule description  | 
150  |  |      * @param status output param set to success/failure code on exit  | 
151  |  |      * @stable ICU 4.2  | 
152  |  |      */  | 
153  |  |     void setPluralRules(const UnicodeString& ruleDescription,  | 
154  |  |                         UErrorCode& status);  | 
155  |  |  | 
156  |  |     /**  | 
157  |  |      * Set currency plural pattern.  | 
158  |  |      * The currency plural pattern is set when CurrencyPluralInfo  | 
159  |  |      * instance is created.  | 
160  |  |      * You can call this method to reset currency plural pattern only if   | 
161  |  |      * you want to modify the default currency plural pattern of the locale.  | 
162  |  |      *  | 
163  |  |      * @param pluralCount the plural count for which the currency pattern will   | 
164  |  |      *                    be overridden.  | 
165  |  |      * @param pattern     the new currency plural pattern  | 
166  |  |      * @param status      output param set to success/failure code on exit  | 
167  |  |      * @stable ICU 4.2  | 
168  |  |      */  | 
169  |  |     void setCurrencyPluralPattern(const UnicodeString& pluralCount,   | 
170  |  |                                   const UnicodeString& pattern,  | 
171  |  |                                   UErrorCode& status);  | 
172  |  |  | 
173  |  |     /**  | 
174  |  |      * Set locale  | 
175  |  |      *  | 
176  |  |      * @param loc     the new locale to set  | 
177  |  |      * @param status  output param set to success/failure code on exit  | 
178  |  |      * @stable ICU 4.2  | 
179  |  |      */  | 
180  |  |     void setLocale(const Locale& loc, UErrorCode& status);  | 
181  |  |  | 
182  |  |     /**  | 
183  |  |      * ICU "poor man's RTTI", returns a UClassID for the actual class.  | 
184  |  |      *  | 
185  |  |      * @stable ICU 4.2  | 
186  |  |      */  | 
187  |  |     virtual UClassID getDynamicClassID() const;  | 
188  |  |  | 
189  |  |     /**  | 
190  |  |      * ICU "poor man's RTTI", returns a UClassID for this class.  | 
191  |  |      *  | 
192  |  |      * @stable ICU 4.2  | 
193  |  |      */  | 
194  |  |     static UClassID U_EXPORT2 getStaticClassID();  | 
195  |  |  | 
196  |  | private:  | 
197  |  |     friend class DecimalFormat;  | 
198  |  |     friend class DecimalFormatImpl;  | 
199  |  |  | 
200  |  |     void initialize(const Locale& loc, UErrorCode& status);  | 
201  |  |      | 
202  |  |     void setupCurrencyPluralPattern(const Locale& loc, UErrorCode& status);  | 
203  |  |  | 
204  |  |     /*  | 
205  |  |      * delete hash table  | 
206  |  |      *  | 
207  |  |      * @param hTable  hash table to be deleted  | 
208  |  |      */  | 
209  |  |     void deleteHash(Hashtable* hTable);  | 
210  |  |  | 
211  |  |  | 
212  |  |     /*  | 
213  |  |      * initialize hash table  | 
214  |  |      *  | 
215  |  |      * @param status   output param set to success/failure code on exit  | 
216  |  |      * @return         hash table initialized  | 
217  |  |      */  | 
218  |  |     Hashtable* initHash(UErrorCode& status);  | 
219  |  |  | 
220  |  |  | 
221  |  |  | 
222  |  |     /**  | 
223  |  |      * copy hash table  | 
224  |  |      *  | 
225  |  |      * @param source   the source to copy from  | 
226  |  |      * @param target   the target to copy to  | 
227  |  |      * @param status   error code  | 
228  |  |      */  | 
229  |  |     void copyHash(const Hashtable* source, Hashtable* target, UErrorCode& status);  | 
230  |  |  | 
231  |  |     //-------------------- private data member ---------------------  | 
232  |  |     // map from plural count to currency plural pattern, for example  | 
233  |  |     // a plural pattern defined in "CurrencyUnitPatterns" is  | 
234  |  |     // "one{{0} {1}}", in which "one" is a plural count | 
235  |  |     // and "{0} {1}" is a currency plural pattern". | 
236  |  |     // The currency plural pattern saved in this mapping is the pattern  | 
237  |  |     // defined in "CurrencyUnitPattern" by replacing  | 
238  |  |     // {0} with the number format pattern, | 
239  |  |     // and {1} with 3 currency sign. | 
240  |  |     Hashtable* fPluralCountToCurrencyUnitPattern;  | 
241  |  |  | 
242  |  |     /*  | 
243  |  |      * The plural rule is used to format currency plural name,  | 
244  |  |      * for example: "3.00 US Dollars".  | 
245  |  |      * If there are 3 currency signs in the currency pattern,  | 
246  |  |      * the 3 currency signs will be replaced by currency plural name.  | 
247  |  |      */  | 
248  |  |     PluralRules* fPluralRules;  | 
249  |  |  | 
250  |  |     // locale  | 
251  |  |     Locale* fLocale;  | 
252  |  |  | 
253  |  | private:  | 
254  |  |     /**  | 
255  |  |     * An internal status variable used to indicate that the object is in an 'invalid' state.  | 
256  |  |     * Used by copy constructor, the assignment operator and the clone method.  | 
257  |  |     */  | 
258  |  |     UErrorCode fInternalStatus;  | 
259  |  | };  | 
260  |  |  | 
261  |  |  | 
262  |  | inline bool  | 
263  | 0  | CurrencyPluralInfo::operator!=(const CurrencyPluralInfo& info) const { | 
264  | 0  |     return !operator==(info);  | 
265  | 0  | }    | 
266  |  |  | 
267  |  | U_NAMESPACE_END  | 
268  |  |  | 
269  |  | #endif /* #if !UCONFIG_NO_FORMATTING */  | 
270  |  |  | 
271  |  | #endif /* U_SHOW_CPLUSPLUS_API */  | 
272  |  |  | 
273  |  | #endif // _CURRPINFO  | 
274  |  | //eof  |