2
**********************************************************************
3
* Copyright (c) 2002-2010, International Business Machines
4
* Corporation and others. All Rights Reserved.
5
**********************************************************************
10
#include "unicode/utypes.h"
11
#include "unicode/uenum.h"
15
* \brief C API: Encapsulates information about a currency.
18
#if !UCONFIG_NO_FORMATTING
21
* The ucurr API encapsulates information about a currency, as defined by
22
* ISO 4217. A currency is represented by a 3-character string
23
* containing its ISO 4217 code. This API can return various data
24
* necessary the proper display of a currency:
26
* <ul><li>A display symbol, for a specific locale
27
* <li>The number of fraction digits to display
28
* <li>A rounding increment
31
* The <tt>DecimalFormat</tt> class uses these data to display
38
* Finds a currency code for the given locale.
39
* @param locale the locale for which to retrieve a currency code.
40
* Currency can be specified by the "currency" keyword
41
* in which case it overrides the default currency code
42
* @param buff fill in buffer. Can be NULL for preflighting.
43
* @param buffCapacity capacity of the fill in buffer. Can be 0 for
44
* preflighting. If it is non-zero, the buff parameter
46
* @param ec error code
47
* @return length of the currency string. It should always be 3. If 0,
48
* currency couldn't be found or the input values are
52
U_STABLE int32_t U_EXPORT2
53
ucurr_forLocale(const char* locale,
59
* Selector constants for ucurr_getName().
64
typedef enum UCurrNameStyle {
66
* Selector for ucurr_getName indicating a symbolic name for a
67
* currency, such as "$" for USD.
73
* Selector for ucurr_getName indicating the long name for a
74
* currency, such as "US Dollar" for USD.
80
#if !UCONFIG_NO_SERVICE
84
typedef const void* UCurrRegistryKey;
87
* Register an (existing) ISO 4217 currency code for the given locale.
88
* Only the country code and the two variants EURO and PRE_EURO are
90
* @param isoCode the three-letter ISO 4217 currency code
91
* @param locale the locale for which to register this currency code
92
* @param status the in/out status code
93
* @return a registry key that can be used to unregister this currency code, or NULL
94
* if there was an error.
97
U_STABLE UCurrRegistryKey U_EXPORT2
98
ucurr_register(const UChar* isoCode,
102
* Unregister the previously-registered currency definitions using the
103
* URegistryKey returned from ucurr_register. Key becomes invalid after
104
* a successful call and should not be used again. Any currency
105
* that might have been hidden by the original ucurr_register call is
107
* @param key the registry key returned by a previous call to ucurr_register
108
* @param status the in/out status code, no special meanings are assigned
109
* @return TRUE if the currency for this key was successfully unregistered
112
U_STABLE UBool U_EXPORT2
113
ucurr_unregister(UCurrRegistryKey key, UErrorCode* status);
114
#endif /* UCONFIG_NO_SERVICE */
117
* Returns the display name for the given currency in the
118
* given locale. For example, the display name for the USD
119
* currency object in the en_US locale is "$".
120
* @param currency null-terminated 3-letter ISO 4217 code
121
* @param locale locale in which to display currency
122
* @param nameStyle selector for which kind of name to return
123
* @param isChoiceFormat fill-in set to TRUE if the returned value
124
* is a ChoiceFormat pattern; otherwise it is a static string
125
* @param len fill-in parameter to receive length of result
126
* @param ec error code
127
* @return pointer to display string of 'len' UChars. If the resource
128
* data contains no entry for 'currency', then 'currency' itself is
129
* returned. If *isChoiceFormat is TRUE, then the result is a
130
* ChoiceFormat pattern. Otherwise it is a static string.
133
U_STABLE const UChar* U_EXPORT2
134
ucurr_getName(const UChar* currency,
136
UCurrNameStyle nameStyle,
137
UBool* isChoiceFormat,
142
* Returns the plural name for the given currency in the
143
* given locale. For example, the plural name for the USD
144
* currency object in the en_US locale is "US dollar" or "US dollars".
145
* @param currency null-terminated 3-letter ISO 4217 code
146
* @param locale locale in which to display currency
147
* @param isChoiceFormat fill-in set to TRUE if the returned value
148
* is a ChoiceFormat pattern; otherwise it is a static string
149
* @param pluralCount plural count
150
* @param len fill-in parameter to receive length of result
151
* @param ec error code
152
* @return pointer to display string of 'len' UChars. If the resource
153
* data contains no entry for 'currency', then 'currency' itself is
157
U_STABLE const UChar* U_EXPORT2
158
ucurr_getPluralName(const UChar* currency,
160
UBool* isChoiceFormat,
161
const char* pluralCount,
166
* Returns the number of the number of fraction digits that should
167
* be displayed for the given currency.
168
* @param currency null-terminated 3-letter ISO 4217 code
169
* @param ec input-output error code
170
* @return a non-negative number of fraction digits to be
171
* displayed, or 0 if there is an error
174
U_STABLE int32_t U_EXPORT2
175
ucurr_getDefaultFractionDigits(const UChar* currency,
179
* Returns the rounding increment for the given currency, or 0.0 if no
180
* rounding is done by the currency.
181
* @param currency null-terminated 3-letter ISO 4217 code
182
* @param ec input-output error code
183
* @return the non-negative rounding increment, or 0.0 if none,
184
* or 0.0 if there is an error
187
U_STABLE double U_EXPORT2
188
ucurr_getRoundingIncrement(const UChar* currency,
192
* Selector constants for ucurr_openCurrencies().
194
* @see ucurr_openCurrencies
197
typedef enum UCurrCurrencyType {
199
* Select all ISO-4217 currency codes.
202
UCURR_ALL = INT32_MAX,
204
* Select only ISO-4217 commonly used currency codes.
205
* These currencies can be found in common use, and they usually have
206
* bank notes or coins associated with the currency code.
207
* This does not include fund codes, precious metals and other
208
* various ISO-4217 codes limited to special financial products.
213
* Select ISO-4217 uncommon currency codes.
214
* These codes respresent fund codes, precious metals and other
215
* various ISO-4217 codes limited to special financial products.
216
* A fund code is a monetary resource associated with a currency.
221
* Select only deprecated ISO-4217 codes.
222
* These codes are no longer in general public use.
225
UCURR_DEPRECATED = 4,
227
* Select only non-deprecated ISO-4217 codes.
228
* These codes are in general public use.
231
UCURR_NON_DEPRECATED = 8
235
* Provides a UEnumeration object for listing ISO-4217 codes.
236
* @param currType You can use one of several UCurrCurrencyType values for this
237
* variable. You can also | (or) them together to get a specific list of
238
* currencies. Most people will want to use the (UCURR_CURRENCY|UCURR_NON_DEPRECATED) value to
239
* get a list of current currencies.
240
* @param pErrorCode Error code
243
U_STABLE UEnumeration * U_EXPORT2
244
ucurr_openISOCurrencies(uint32_t currType, UErrorCode *pErrorCode);
247
* Finds the number of valid currency codes for the
248
* given locale and date.
249
* @param locale the locale for which to retrieve the
251
* @param date the date for which to retrieve the
252
* currency count for the given locale.
253
* @param ec error code
254
* @return the number of currency codes for the
255
* given locale and date. If 0, currency
256
* codes couldn't be found for the input
257
* values are invalid.
260
U_STABLE int32_t U_EXPORT2
261
ucurr_countCurrencies(const char* locale,
266
* Finds a currency code for the given locale and date
267
* @param locale the locale for which to retrieve a currency code.
268
* Currency can be specified by the "currency" keyword
269
* in which case it overrides the default currency code
270
* @param date the date for which to retrieve a currency code for
272
* @param index the index within the available list of currency codes
273
* for the given locale on the given date.
274
* @param buff fill in buffer. Can be NULL for preflighting.
275
* @param buffCapacity capacity of the fill in buffer. Can be 0 for
276
* preflighting. If it is non-zero, the buff parameter
278
* @param ec error code
279
* @return length of the currency string. It should always be 3.
280
* If 0, currency couldn't be found or the input values are
284
U_STABLE int32_t U_EXPORT2
285
ucurr_forLocaleAndDate(const char* locale,
289
int32_t buffCapacity,
293
* Given a key and a locale, returns an array of string values in a preferred
294
* order that would make a difference. These are all and only those values where
295
* the open (creation) of the service with the locale formed from the input locale
296
* plus input keyword and that value has different behavior than creation with the
297
* input locale alone.
298
* @param key one of the keys supported by this service. For now, only
299
* "currency" is supported.
300
* @param locale the locale
301
* @param commonlyUsed if set to true it will return only commonly used values
302
* with the given locale in preferred order. Otherwise,
303
* it will return all the available values for the locale.
304
* @param status error status
305
* @return a string enumeration over keyword values for the given key and the locale.
308
U_STABLE UEnumeration* U_EXPORT2
309
ucurr_getKeywordValuesForLocale(const char* key,
314
#endif /* #if !UCONFIG_NO_FORMATTING */