The Tor Browser / file comparison

comparison: intl/icu/source/i18n/unicode/dcfmtsym.h

intl/icu/source/i18n/unicode/dcfmtsym.h

changeset 0
6474c204b198
equal deleted inserted replaced
-1:000000000000 0:c76d6b9091d6
1 /*
2 ********************************************************************************
3 * Copyright (C) 1997-2013, International Business Machines
4 * Corporation and others. All Rights Reserved.
5 ********************************************************************************
6 *
7 * File DCFMTSYM.H
8 *
9 * Modification History:
10 *
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
21 * functions.
22 ********************************************************************************
23 */
24
25 #ifndef DCFMTSYM_H
26 #define DCFMTSYM_H
27
28 #include "unicode/utypes.h"
29 #include "unicode/uchar.h"
30
31 #if !UCONFIG_NO_FORMATTING
32
33 #include "unicode/uobject.h"
34 #include "unicode/locid.h"
35 #include "unicode/unum.h"
36
37 /**
38 * \file
39 * \brief C++ API: Symbols for formatting numbers.
40 */
41
42
43 U_NAMESPACE_BEGIN
44
45 /**
46 * This class represents the set of symbols needed by DecimalFormat
47 * to format numbers. DecimalFormat creates for itself an instance of
48 * DecimalFormatSymbols from its locale data. If you need to change any
49 * of these symbols, you can get the DecimalFormatSymbols object from
50 * your DecimalFormat and modify it.
51 * <P>
52 * Here are the special characters used in the parts of the
53 * subpattern, with notes on their usage.
54 * <pre>
55 * \code
56 * Symbol Meaning
57 * 0 a digit
58 * # a digit, zero shows as absent
59 * . placeholder for decimal separator
60 * , placeholder for grouping separator.
61 * ; separates formats.
62 * - default negative prefix.
63 * % divide by 100 and show as percentage
64 * X any other characters can be used in the prefix or suffix
65 * ' used to quote special characters in a prefix or suffix.
66 * \endcode
67 * </pre>
68 * [Notes]
69 * <P>
70 * If there is no explicit negative subpattern, - is prefixed to the
71 * positive form. That is, "0.00" alone is equivalent to "0.00;-0.00".
72 * <P>
73 * The grouping separator is commonly used for thousands, but in some
74 * countries for ten-thousands. The interval is a constant number of
75 * digits between the grouping characters, such as 100,000,000 or 1,0000,0000.
76 * If you supply a pattern with multiple grouping characters, the interval
77 * between the last one and the end of the integer is the one that is
78 * used. So "#,##,###,####" == "######,####" == "##,####,####".
79 * <P>
80 * This class only handles localized digits where the 10 digits are
81 * contiguous in Unicode, from 0 to 9. Other digits sets (such as
82 * superscripts) would need a different subclass.
83 */
84 class U_I18N_API DecimalFormatSymbols : public UObject {
85 public:
86 /**
87 * Constants for specifying a number format symbol.
88 * @stable ICU 2.0
89 */
90 enum ENumberFormatSymbol {
91 /** The decimal separator */
92 kDecimalSeparatorSymbol,
93 /** The grouping separator */
94 kGroupingSeparatorSymbol,
95 /** The pattern separator */
96 kPatternSeparatorSymbol,
97 /** The percent sign */
98 kPercentSymbol,
99 /** Zero*/
100 kZeroDigitSymbol,
101 /** Character representing a digit in the pattern */
102 kDigitSymbol,
103 /** The minus sign */
104 kMinusSignSymbol,
105 /** The plus sign */
106 kPlusSignSymbol,
107 /** The currency symbol */
108 kCurrencySymbol,
109 /** The international currency symbol */
110 kIntlCurrencySymbol,
111 /** The monetary separator */
112 kMonetarySeparatorSymbol,
113 /** The exponential symbol */
114 kExponentialSymbol,
115 /** Per mill symbol - replaces kPermillSymbol */
116 kPerMillSymbol,
117 /** Escape padding character */
118 kPadEscapeSymbol,
119 /** Infinity symbol */
120 kInfinitySymbol,
121 /** Nan symbol */
122 kNaNSymbol,
123 /** Significant digit symbol
124 * @stable ICU 3.0 */
125 kSignificantDigitSymbol,
126 /** The monetary grouping separator
127 * @stable ICU 3.6
128 */
129 kMonetaryGroupingSeparatorSymbol,
130 /** One
131 * @stable ICU 4.6
132 */
133 kOneDigitSymbol,
134 /** Two
135 * @stable ICU 4.6
136 */
137 kTwoDigitSymbol,
138 /** Three
139 * @stable ICU 4.6
140 */
141 kThreeDigitSymbol,
142 /** Four
143 * @stable ICU 4.6
144 */
145 kFourDigitSymbol,
146 /** Five
147 * @stable ICU 4.6
148 */
149 kFiveDigitSymbol,
150 /** Six
151 * @stable ICU 4.6
152 */
153 kSixDigitSymbol,
154 /** Seven
155 * @stable ICU 4.6
156 */
157 kSevenDigitSymbol,
158 /** Eight
159 * @stable ICU 4.6
160 */
161 kEightDigitSymbol,
162 /** Nine
163 * @stable ICU 4.6
164 */
165 kNineDigitSymbol,
166 /** count symbol constants */
167 kFormatSymbolCount
168 };
169
170 /**
171 * Create a DecimalFormatSymbols object for the given locale.
172 *
173 * @param locale The locale to get symbols for.
174 * @param status Input/output parameter, set to success or
175 * failure code upon return.
176 * @stable ICU 2.0
177 */
178 DecimalFormatSymbols(const Locale& locale, UErrorCode& status);
179
180 /**
181 * Create a DecimalFormatSymbols object for the default locale.
182 * This constructor will not fail. If the resource file data is
183 * not available, it will use hard-coded last-resort data and
184 * set status to U_USING_FALLBACK_ERROR.
185 *
186 * @param status Input/output parameter, set to success or
187 * failure code upon return.
188 * @stable ICU 2.0
189 */
190 DecimalFormatSymbols(UErrorCode& status);
191
192 #ifndef U_HIDE_DRAFT_API
193 /**
194 * Creates a DecimalFormatSymbols object with last-resort data.
195 * Intended for callers who cache the symbols data and
196 * set all symbols on the resulting object.
197 *
198 * The last-resort symbols are similar to those for the root data,
199 * except that the grouping separators are empty,
200 * the NaN symbol is U+FFFD rather than "NaN",
201 * and the CurrencySpacing patterns are empty.
202 *
203 * @param status Input/output parameter, set to success or
204 * failure code upon return.
205 * @return last-resort symbols
206 * @draft ICU 52
207 */
208 static DecimalFormatSymbols* createWithLastResortData(UErrorCode& status);
209 #endif /* U_HIDE_DRAFT_API */
210
211 /**
212 * Copy constructor.
213 * @stable ICU 2.0
214 */
215 DecimalFormatSymbols(const DecimalFormatSymbols&);
216
217 /**
218 * Assignment operator.
219 * @stable ICU 2.0
220 */
221 DecimalFormatSymbols& operator=(const DecimalFormatSymbols&);
222
223 /**
224 * Destructor.
225 * @stable ICU 2.0
226 */
227 virtual ~DecimalFormatSymbols();
228
229 /**
230 * Return true if another object is semantically equal to this one.
231 *
232 * @param other the object to be compared with.
233 * @return true if another object is semantically equal to this one.
234 * @stable ICU 2.0
235 */
236 UBool operator==(const DecimalFormatSymbols& other) const;
237
238 /**
239 * Return true if another object is semantically unequal to this one.
240 *
241 * @param other the object to be compared with.
242 * @return true if another object is semantically unequal to this one.
243 * @stable ICU 2.0
244 */
245 UBool operator!=(const DecimalFormatSymbols& other) const { return !operator==(other); }
246
247 /**
248 * Get one of the format symbols by its enum constant.
249 * Each symbol is stored as a string so that graphemes
250 * (characters with modifier letters) can be used.
251 *
252 * @param symbol Constant to indicate a number format symbol.
253 * @return the format symbols by the param 'symbol'
254 * @stable ICU 2.0
255 */
256 inline UnicodeString getSymbol(ENumberFormatSymbol symbol) const;
257
258 /**
259 * Set one of the format symbols by its enum constant.
260 * Each symbol is stored as a string so that graphemes
261 * (characters with modifier letters) can be used.
262 *
263 * @param symbol Constant to indicate a number format symbol.
264 * @param value value of the format symbol
265 * @param propogateDigits If false, setting the zero digit will not automatically set 1-9.
266 * The default behavior is to automatically set 1-9 if zero is being set and the value
267 * it is being set to corresponds to a known Unicode zero digit.
268 * @stable ICU 2.0
269 */
270 void setSymbol(ENumberFormatSymbol symbol, const UnicodeString &value, const UBool propogateDigits);
271
272 /**
273 * Returns the locale for which this object was constructed.
274 * @stable ICU 2.6
275 */
276 inline Locale getLocale() const;
277
278 /**
279 * Returns the locale for this object. Two flavors are available:
280 * valid and actual locale.
281 * @stable ICU 2.8
282 */
283 Locale getLocale(ULocDataLocaleType type, UErrorCode& status) const;
284
285 /**
286 * Get pattern string for 'CurrencySpacing' that can be applied to
287 * currency format.
288 * This API gets the CurrencySpacing data from ResourceBundle. The pattern can
289 * be empty if there is no data from current locale and its parent locales.
290 *
291 * @param type : UNUM_CURRENCY_MATCH, UNUM_CURRENCY_SURROUNDING_MATCH or UNUM_CURRENCY_INSERT.
292 * @param beforeCurrency : true if the pattern is for before currency symbol.
293 * false if the pattern is for after currency symbol.
294 * @param status: Input/output parameter, set to success or
295 * failure code upon return.
296 * @return pattern string for currencyMatch, surroundingMatch or spaceInsert.
297 * Return empty string if there is no data for this locale and its parent
298 * locales.
299 * @stable ICU 4.8
300 */
301 const UnicodeString& getPatternForCurrencySpacing(UCurrencySpacing type,
302 UBool beforeCurrency,
303 UErrorCode& status) const;
304 /**
305 * Set pattern string for 'CurrencySpacing' that can be applied to
306 * currency format.
307 *
308 * @param type : UNUM_CURRENCY_MATCH, UNUM_CURRENCY_SURROUNDING_MATCH or UNUM_CURRENCY_INSERT.
309 * @param beforeCurrency : true if the pattern is for before currency symbol.
310 * false if the pattern is for after currency symbol.
311 * @param pattern : pattern string to override current setting.
312 * @stable ICU 4.8
313 */
314 void setPatternForCurrencySpacing(UCurrencySpacing type,
315 UBool beforeCurrency,
316 const UnicodeString& pattern);
317
318 /**
319 * ICU "poor man's RTTI", returns a UClassID for the actual class.
320 *
321 * @stable ICU 2.2
322 */
323 virtual UClassID getDynamicClassID() const;
324
325 /**
326 * ICU "poor man's RTTI", returns a UClassID for this class.
327 *
328 * @stable ICU 2.2
329 */
330 static UClassID U_EXPORT2 getStaticClassID();
331
332 private:
333 DecimalFormatSymbols();
334
335 /**
336 * Initializes the symbols from the LocaleElements resource bundle.
337 * Note: The organization of LocaleElements badly needs to be
338 * cleaned up.
339 *
340 * @param locale The locale to get symbols for.
341 * @param success Input/output parameter, set to success or
342 * failure code upon return.
343 * @param useLastResortData determine if use last resort data
344 */
345 void initialize(const Locale& locale, UErrorCode& success, UBool useLastResortData = FALSE);
346
347 /**
348 * Initialize the symbols with default values.
349 */
350 void initialize();
351
352 void setCurrencyForSymbols();
353
354 public:
355 #ifndef U_HIDE_INTERNAL_API
356 /**
357 * _Internal_ function - more efficient version of getSymbol,
358 * returning a const reference to one of the symbol strings.
359 * The returned reference becomes invalid when the symbol is changed
360 * or when the DecimalFormatSymbols are destroyed.
361 * ### TODO markus 2002oct11: Consider proposing getConstSymbol() to be really public.
362 *
363 * @param symbol Constant to indicate a number format symbol.
364 * @return the format symbol by the param 'symbol'
365 * @internal
366 */
367 inline const UnicodeString &getConstSymbol(ENumberFormatSymbol symbol) const;
368
369 /**
370 * Returns that pattern stored in currecy info. Internal API for use by NumberFormat API.
371 * @internal
372 */
373 inline const UChar* getCurrencyPattern(void) const;
374 #endif /* U_HIDE_INTERNAL_API */
375
376 private:
377 /**
378 * Private symbol strings.
379 * They are either loaded from a resource bundle or otherwise owned.
380 * setSymbol() clones the symbol string.
381 * Readonly aliases can only come from a resource bundle, so that we can always
382 * use fastCopyFrom() with them.
383 *
384 * If DecimalFormatSymbols becomes subclassable and the status of fSymbols changes
385 * from private to protected,
386 * or when fSymbols can be set any other way that allows them to be readonly aliases
387 * to non-resource bundle strings,
388 * then regular UnicodeString copies must be used instead of fastCopyFrom().
389 *
390 * @internal
391 */
392 UnicodeString fSymbols[kFormatSymbolCount];
393
394 /**
395 * Non-symbol variable for getConstSymbol(). Always empty.
396 * @internal
397 */
398 UnicodeString fNoSymbol;
399
400 Locale locale;
401
402 char actualLocale[ULOC_FULLNAME_CAPACITY];
403 char validLocale[ULOC_FULLNAME_CAPACITY];
404 const UChar* currPattern;
405
406 UnicodeString currencySpcBeforeSym[UNUM_CURRENCY_SPACING_COUNT];
407 UnicodeString currencySpcAfterSym[UNUM_CURRENCY_SPACING_COUNT];
408 };
409
410 // -------------------------------------
411
412 inline UnicodeString
413 DecimalFormatSymbols::getSymbol(ENumberFormatSymbol symbol) const {
414 const UnicodeString *strPtr;
415 if(symbol < kFormatSymbolCount) {
416 strPtr = &fSymbols[symbol];
417 } else {
418 strPtr = &fNoSymbol;
419 }
420 return *strPtr;
421 }
422
423 #ifndef U_HIDE_INTERNAL_API
424
425 inline const UnicodeString &
426 DecimalFormatSymbols::getConstSymbol(ENumberFormatSymbol symbol) const {
427 const UnicodeString *strPtr;
428 if(symbol < kFormatSymbolCount) {
429 strPtr = &fSymbols[symbol];
430 } else {
431 strPtr = &fNoSymbol;
432 }
433 return *strPtr;
434 }
435
436 #endif /* U_HIDE_INTERNAL_API */
437
438
439 // -------------------------------------
440
441 inline void
442 DecimalFormatSymbols::setSymbol(ENumberFormatSymbol symbol, const UnicodeString &value, const UBool propogateDigits = TRUE) {
443 if(symbol<kFormatSymbolCount) {
444 fSymbols[symbol]=value;
445 }
446
447 // If the zero digit is being set to a known zero digit according to Unicode,
448 // then we automatically set the corresponding 1-9 digits
449 if ( propogateDigits && symbol == kZeroDigitSymbol && value.countChar32() == 1 ) {
450 UChar32 sym = value.char32At(0);
451 if ( u_charDigitValue(sym) == 0 ) {
452 for ( int8_t i = 1 ; i<= 9 ; i++ ) {
453 sym++;
454 fSymbols[(int)kOneDigitSymbol+i-1] = UnicodeString(sym);
455 }
456 }
457 }
458 }
459
460 // -------------------------------------
461
462 inline Locale
463 DecimalFormatSymbols::getLocale() const {
464 return locale;
465 }
466
467 #ifndef U_HIDE_INTERNAL_API
468 inline const UChar*
469 DecimalFormatSymbols::getCurrencyPattern() const {
470 return currPattern;
471 }
472 #endif /* U_HIDE_INTERNAL_API */
473
474 U_NAMESPACE_END
475
476 #endif /* #if !UCONFIG_NO_FORMATTING */
477
478 #endif // _DCFMTSYM
479 //eof

Mercurial Repository: The Tor Browser

Europalab SCM Repository Server

mercurial