2
********************************************************************************
3
* Copyright (C) 1997-2005, International Business Machines
4
* Corporation and others. All Rights Reserved.
5
********************************************************************************
9
* Modification History:
11
* Date Name Description
12
* 02/19/97 aliu Converted from java.
13
* 03/18/97 clhuang Updated per C++ implementation.
14
* 03/27/97 helena Updated to pass the simple test after code review.
15
* 08/26/97 aliu Added currency/intl currency symbol support.
16
* 07/22/98 stephen Changed to match C++ style
17
* currencySymbol -> fCurrencySymbol
18
* Constants changed from CAPS to kCaps
19
* 06/24/99 helena Integrated Alan's NF enhancements and Java2 bug fixes
20
* 09/22/00 grhoten Marked deprecation tags with a pointer to replacement
22
********************************************************************************
28
#include "unicode/utypes.h"
30
#if !UCONFIG_NO_FORMATTING
32
#include "unicode/uobject.h"
33
#include "unicode/locid.h"
37
* \brief C++ API: Symbols for formatting numbers.
44
* This class represents the set of symbols needed by DecimalFormat
45
* to format numbers. DecimalFormat creates for itself an instance of
46
* DecimalFormatSymbols from its locale data. If you need to change any
47
* of these symbols, you can get the DecimalFormatSymbols object from
48
* your DecimalFormat and modify it.
50
* Here are the special characters used in the parts of the
51
* subpattern, with notes on their usage.
56
* # a digit, zero shows as absent
57
* . placeholder for decimal separator
58
* , placeholder for grouping separator.
59
* ; separates formats.
60
* - default negative prefix.
61
* % divide by 100 and show as percentage
62
* X any other characters can be used in the prefix or suffix
63
* ' used to quote special characters in a prefix or suffix.
68
* If there is no explicit negative subpattern, - is prefixed to the
69
* positive form. That is, "0.00" alone is equivalent to "0.00;-0.00".
71
* The grouping separator is commonly used for thousands, but in some
72
* countries for ten-thousands. The interval is a constant number of
73
* digits between the grouping characters, such as 100,000,000 or 1,0000,0000.
74
* If you supply a pattern with multiple grouping characters, the interval
75
* between the last one and the end of the integer is the one that is
76
* used. So "#,##,###,####" == "######,####" == "##,####,####".
78
* This class only handles localized digits where the 10 digits are
79
* contiguous in Unicode, from 0 to 9. Other digits sets (such as
80
* superscripts) would need a different subclass.
82
class U_I18N_API DecimalFormatSymbols : public UObject {
85
* Constants for specifying a number format symbol.
88
enum ENumberFormatSymbol {
89
/** The decimal separator */
90
kDecimalSeparatorSymbol,
91
/** The grouping separator */
92
kGroupingSeparatorSymbol,
93
/** The pattern separator */
94
kPatternSeparatorSymbol,
95
/** The percent sign */
99
/** Character representing a digit in the pattern */
101
/** The minus sign */
105
/** The currency symbol */
107
/** The international currency symbol */
109
/** The monetary separator */
110
kMonetarySeparatorSymbol,
111
/** The exponential symbol */
113
/** Per mill symbol - replaces kPermillSymbol */
115
/** Escape padding character */
117
/** Infinity symbol */
121
/** Significant digit symbol
123
kSignificantDigitSymbol,
124
/** count symbol constants */
129
* Create a DecimalFormatSymbols object for the given locale.
131
* @param locale The locale to get symbols for.
132
* @param status Input/output parameter, set to success or
133
* failure code upon return.
136
DecimalFormatSymbols(const Locale& locale, UErrorCode& status);
139
* Create a DecimalFormatSymbols object for the default locale.
140
* This constructor will not fail. If the resource file data is
141
* not available, it will use hard-coded last-resort data and
142
* set status to U_USING_FALLBACK_ERROR.
144
* @param status Input/output parameter, set to success or
145
* failure code upon return.
148
DecimalFormatSymbols( UErrorCode& status);
154
DecimalFormatSymbols(const DecimalFormatSymbols&);
157
* Assignment operator.
160
DecimalFormatSymbols& operator=(const DecimalFormatSymbols&);
166
virtual ~DecimalFormatSymbols();
169
* Return true if another object is semantically equal to this one.
171
* @param other the object to be compared with.
172
* @return true if another object is semantically equal to this one.
175
UBool operator==(const DecimalFormatSymbols& other) const;
178
* Return true if another object is semantically unequal to this one.
180
* @param other the object to be compared with.
181
* @return true if another object is semantically unequal to this one.
184
UBool operator!=(const DecimalFormatSymbols& other) const { return !operator==(other); }
187
* Get one of the format symbols by its enum constant.
188
* Each symbol is stored as a string so that graphemes
189
* (characters with modifyer letters) can be used.
191
* @param symbol Constant to indicate a number format symbol.
192
* @return the format symbols by the param 'symbol'
195
inline UnicodeString getSymbol(ENumberFormatSymbol symbol) const;
198
* Set one of the format symbols by its enum constant.
199
* Each symbol is stored as a string so that graphemes
200
* (characters with modifyer letters) can be used.
202
* @param symbol Constant to indicate a number format symbol.
203
* @param value value of the format sybmol
206
void setSymbol(ENumberFormatSymbol symbol, const UnicodeString &value);
209
* Returns the locale for which this object was constructed.
212
inline Locale getLocale() const;
215
* Returns the locale for this object. Two flavors are available:
216
* valid and actual locale.
217
* @draft ICU 2.8 likely to change after ICU 3.0, based on feedback
219
Locale getLocale(ULocDataLocaleType type, UErrorCode& status) const;
222
* ICU "poor man's RTTI", returns a UClassID for the actual class.
226
virtual UClassID getDynamicClassID() const;
229
* ICU "poor man's RTTI", returns a UClassID for this class.
233
static UClassID U_EXPORT2 getStaticClassID();
236
DecimalFormatSymbols(); // default constructor not implemented
239
* Initializes the symbols from the LocaleElements resource bundle.
240
* Note: The organization of LocaleElements badly needs to be
243
* @param locale The locale to get symbols for.
244
* @param success Input/output parameter, set to success or
245
* failure code upon return.
246
* @param useLastResortData determine if use last resort data
248
void initialize(const Locale& locale, UErrorCode& success, UBool useLastResortData = FALSE);
251
* Initialize the symbols from the given array of UnicodeStrings.
252
* The array must be of the correct size.
254
* @param numberElements the number format symbols
255
* @param numberElementsLength length of numberElements
257
void initialize(const UChar** numberElements, int32_t *numberElementsStrLen, int32_t numberElementsLength);
260
* Initialize the symbols with default values.
264
void setCurrencyForSymbols();
268
* _Internal_ function - more efficient version of getSymbol,
269
* returning a const reference to one of the symbol strings.
270
* The returned reference becomes invalid when the symbol is changed
271
* or when the DecimalFormatSymbols are destroyed.
272
* ### TODO markus 2002oct11: Consider proposing getConstSymbol() to be really public.
274
* @param symbol Constant to indicate a number format symbol.
275
* @return the format symbol by the param 'symbol'
278
inline const UnicodeString &getConstSymbol(ENumberFormatSymbol symbol) const;
282
* Private symbol strings.
283
* They are either loaded from a resource bundle or otherwise owned.
284
* setSymbol() clones the symbol string.
285
* Readonly aliases can only come from a resource bundle, so that we can always
286
* use fastCopyFrom() with them.
288
* If DecimalFormatSymbols becomes subclassable and the status of fSymbols changes
289
* from private to protected,
290
* or when fSymbols can be set any other way that allows them to be readonly aliases
291
* to non-resource bundle strings,
292
* then regular UnicodeString copies must be used instead of fastCopyFrom().
296
UnicodeString fSymbols[kFormatSymbolCount];
299
* Non-symbol variable for getConstSymbol(). Always empty.
302
UnicodeString fNoSymbol;
306
char actualLocale[ULOC_FULLNAME_CAPACITY];
307
char validLocale[ULOC_FULLNAME_CAPACITY];
310
// -------------------------------------
313
DecimalFormatSymbols::getSymbol(ENumberFormatSymbol symbol) const {
314
const UnicodeString *strPtr;
315
if(symbol < kFormatSymbolCount) {
316
strPtr = &fSymbols[symbol];
323
inline const UnicodeString &
324
DecimalFormatSymbols::getConstSymbol(ENumberFormatSymbol symbol) const {
325
const UnicodeString *strPtr;
326
if(symbol < kFormatSymbolCount) {
327
strPtr = &fSymbols[symbol];
334
// -------------------------------------
337
DecimalFormatSymbols::setSymbol(ENumberFormatSymbol symbol, const UnicodeString &value) {
338
if(symbol<kFormatSymbolCount) {
339
fSymbols[symbol]=value;
343
// -------------------------------------
346
DecimalFormatSymbols::getLocale() const {
353
#endif /* #if !UCONFIG_NO_FORMATTING */