1 /* 2 ******************************************************************************* 3 * Copyright (C) 1997-2015, International Business Machines Corporation and 4 * others. All Rights Reserved. 5 ******************************************************************************* 6 * 7 * File NUMFMT.CPP 8 * 9 * Modification History: 10 * 11 * Date Name Description 12 * 02/19/97 aliu Converted from java. 13 * 03/18/97 clhuang Implemented with C++ APIs. 14 * 04/17/97 aliu Enlarged MAX_INTEGER_DIGITS to fully accomodate the 15 * largest double, by default. 16 * Changed DigitCount to int per code review. 17 * 07/20/98 stephen Changed operator== to check for grouping 18 * Changed setMaxIntegerDigits per Java implementation. 19 * Changed setMinIntegerDigits per Java implementation. 20 * Changed setMinFractionDigits per Java implementation. 21 * Changed setMaxFractionDigits per Java implementation. 22 ******************************************************************************** 23 */ 24 25 #include "unicode/utypes.h" 26 27 #if !UCONFIG_NO_FORMATTING 28 29 #include "unicode/numfmt.h" 30 #include "unicode/locid.h" 31 #include "unicode/dcfmtsym.h" 32 #include "unicode/decimfmt.h" 33 #include "unicode/ustring.h" 34 #include "unicode/ucurr.h" 35 #include "unicode/curramt.h" 36 #include "unicode/numsys.h" 37 #include "unicode/rbnf.h" 38 #include "unicode/localpointer.h" 39 #include "unicode/udisplaycontext.h" 40 #include "charstr.h" 41 #include "winnmfmt.h" 42 #include "uresimp.h" 43 #include "uhash.h" 44 #include "cmemory.h" 45 #include "servloc.h" 46 #include "ucln_in.h" 47 #include "cstring.h" 48 #include "putilimp.h" 49 #include "uassert.h" 50 #include "umutex.h" 51 #include "mutex.h" 52 #include "digitlst.h" 53 #include <float.h> 54 #include "sharednumberformat.h" 55 #include "unifiedcache.h" 56 57 //#define FMT_DEBUG 58 59 #ifdef FMT_DEBUG 60 #include <stdio.h> 61 static inline void debugout(UnicodeString s) { 62 char buf[2000]; 63 s.extract((int32_t) 0, s.length(), buf); 64 printf("%s", buf); 65 } 66 #define debug(x) printf("%s", x); 67 #else 68 #define debugout(x) 69 #define debug(x) 70 #endif 71 72 // If no number pattern can be located for a locale, this is the last 73 // resort. The patterns are same as the ones in root locale. 74 static const UChar gLastResortDecimalPat[] = { 75 0x23, 0x2C, 0x23, 0x23, 0x30, 0x2E, 0x23, 0x23, 0x23, 0 /* "#,##0.###" */ 76 }; 77 static const UChar gLastResortCurrencyPat[] = { 78 0xA4, 0xA0, 0x23, 0x2C, 0x23, 0x23, 0x30, 0x2E, 0x30, 0x30, 0 /* "\u00A4\u00A0#,##0.00" */ 79 }; 80 static const UChar gLastResortPercentPat[] = { 81 0x23, 0x2C, 0x23, 0x23, 0x30, 0x25, 0 /* "#,##0%" */ 82 }; 83 static const UChar gLastResortScientificPat[] = { 84 0x23, 0x45, 0x30, 0 /* "#E0" */ 85 }; 86 static const UChar gLastResortIsoCurrencyPat[] = { 87 0xA4, 0xA4, 0xA0, 0x23, 0x2C, 0x23, 0x23, 0x30, 0x2E, 0x30, 0x30, 0 /* "\u00A4\u00A4\u00A0#,##0.00" */ 88 }; 89 static const UChar gLastResortPluralCurrencyPat[] = { 90 0x23, 0x2C, 0x23, 0x23, 0x30, 0x2E, 0x23, 0x23, 0x23, 0x20, 0xA4, 0xA4, 0xA4, 0 /* "#,##0.### \u00A4\u00A4\u00A4*/ 91 }; 92 static const UChar gLastResortAccountingCurrencyPat[] = { 93 0xA4, 0xA0, 0x23, 0x2C, 0x23, 0x23, 0x30, 0x2E, 0x30, 0x30, 0 /* "\u00A4\u00A0#,##0.00" */ 94 }; 95 96 static const UChar gSingleCurrencySign[] = {0xA4, 0}; 97 static const UChar gDoubleCurrencySign[] = {0xA4, 0xA4, 0}; 98 99 static const UChar gSlash = 0x2f; 100 101 // If the maximum base 10 exponent were 4, then the largest number would 102 // be 99,999 which has 5 digits. 103 // On IEEE754 systems gMaxIntegerDigits is 308 + possible denormalized 15 digits + rounding digit 104 // With big decimal, the max exponent is 999,999,999 and the max number of digits is the same, 999,999,999 105 const int32_t icu::NumberFormat::gDefaultMaxIntegerDigits = 2000000000; 106 const int32_t icu::NumberFormat::gDefaultMinIntegerDigits = 127; 107 108 static const UChar * const gLastResortNumberPatterns[UNUM_FORMAT_STYLE_COUNT] = { 109 NULL, // UNUM_PATTERN_DECIMAL 110 gLastResortDecimalPat, // UNUM_DECIMAL 111 gLastResortCurrencyPat, // UNUM_CURRENCY 112 gLastResortPercentPat, // UNUM_PERCENT 113 gLastResortScientificPat, // UNUM_SCIENTIFIC 114 NULL, // UNUM_SPELLOUT 115 NULL, // UNUM_ORDINAL 116 NULL, // UNUM_DURATION 117 NULL, // UNUM_NUMBERING_SYSTEM 118 NULL, // UNUM_PATTERN_RULEBASED 119 gLastResortIsoCurrencyPat, // UNUM_CURRENCY_ISO 120 gLastResortPluralCurrencyPat, // UNUM_CURRENCY_PLURAL 121 gLastResortAccountingCurrencyPat, // UNUM_CURRENCY_ACCOUNTING 122 gLastResortCurrencyPat, // UNUM_CASH_CURRENCY 123 NULL, // UNUM_DECIMAL_COMPACT_SHORT 124 NULL, // UNUM_DECIMAL_COMPACT_LONG 125 gLastResortCurrencyPat, // UNUM_CURRENCY_STANDARD 126 }; 127 128 // Keys used for accessing resource bundles 129 130 static const char *gNumberElements = "NumberElements"; 131 static const char *gLatn = "latn"; 132 static const char *gPatterns = "patterns"; 133 static const char *gFormatKeys[UNUM_FORMAT_STYLE_COUNT] = { 134 NULL, // UNUM_PATTERN_DECIMAL 135 "decimalFormat", // UNUM_DECIMAL 136 "currencyFormat", // UNUM_CURRENCY 137 "percentFormat", // UNUM_PERCENT 138 "scientificFormat", // UNUM_SCIENTIFIC 139 NULL, // UNUM_SPELLOUT 140 NULL, // UNUM_ORDINAL 141 NULL, // UNUM_DURATION 142 NULL, // UNUM_NUMBERING_SYSTEM 143 NULL, // UNUM_PATTERN_RULEBASED 144 // For UNUM_CURRENCY_ISO and UNUM_CURRENCY_PLURAL, 145 // the pattern is the same as the pattern of UNUM_CURRENCY 146 // except for replacing the single currency sign with 147 // double currency sign or triple currency sign. 148 "currencyFormat", // UNUM_CURRENCY_ISO 149 "currencyFormat", // UNUM_CURRENCY_PLURAL 150 "accountingFormat", // UNUM_CURRENCY_ACCOUNTING 151 "currencyFormat", // UNUM_CASH_CURRENCY 152 NULL, // UNUM_DECIMAL_COMPACT_SHORT 153 NULL, // UNUM_DECIMAL_COMPACT_LONG 154 "currencyFormat", // UNUM_CURRENCY_STANDARD 155 }; 156 157 // Static hashtable cache of NumberingSystem objects used by NumberFormat 158 static UHashtable * NumberingSystem_cache = NULL; 159 static UMutex nscacheMutex = U_MUTEX_INITIALIZER; 160 static icu::UInitOnce gNSCacheInitOnce = U_INITONCE_INITIALIZER; 161 162 #if !UCONFIG_NO_SERVICE 163 static icu::ICULocaleService* gService = NULL; 164 static icu::UInitOnce gServiceInitOnce = U_INITONCE_INITIALIZER; 165 #endif 166 167 /** 168 * Release all static memory held by Number Format. 169 */ 170 U_CDECL_BEGIN 171 static void U_CALLCONV 172 deleteNumberingSystem(void *obj) { 173 delete (icu::NumberingSystem *)obj; 174 } 175 176 static UBool U_CALLCONV numfmt_cleanup(void) { 177 #if !UCONFIG_NO_SERVICE 178 gServiceInitOnce.reset(); 179 if (gService) { 180 delete gService; 181 gService = NULL; 182 } 183 #endif 184 gNSCacheInitOnce.reset(); 185 if (NumberingSystem_cache) { 186 // delete NumberingSystem_cache; 187 uhash_close(NumberingSystem_cache); 188 NumberingSystem_cache = NULL; 189 } 190 return TRUE; 191 } 192 U_CDECL_END 193 194 // ***************************************************************************** 195 // class NumberFormat 196 // ***************************************************************************** 197 198 U_NAMESPACE_BEGIN 199 200 UOBJECT_DEFINE_ABSTRACT_RTTI_IMPLEMENTATION(NumberFormat) 201 202 #if !UCONFIG_NO_SERVICE 203 // ------------------------------------- 204 // SimpleNumberFormatFactory implementation 205 NumberFormatFactory::~NumberFormatFactory() {} 206 SimpleNumberFormatFactory::SimpleNumberFormatFactory(const Locale& locale, UBool visible) 207 : _visible(visible) 208 { 209 LocaleUtility::initNameFromLocale(locale, _id); 210 } 211 212 SimpleNumberFormatFactory::~SimpleNumberFormatFactory() {} 213 214 UBool SimpleNumberFormatFactory::visible(void) const { 215 return _visible; 216 } 217 218 const UnicodeString * 219 SimpleNumberFormatFactory::getSupportedIDs(int32_t &count, UErrorCode& status) const 220 { 221 if (U_SUCCESS(status)) { 222 count = 1; 223 return &_id; 224 } 225 count = 0; 226 return NULL; 227 } 228 #endif /* #if !UCONFIG_NO_SERVICE */ 229 230 // ------------------------------------- 231 // default constructor 232 NumberFormat::NumberFormat() 233 : fGroupingUsed(TRUE), 234 fMaxIntegerDigits(gDefaultMaxIntegerDigits), 235 fMinIntegerDigits(1), 236 fMaxFractionDigits(3), // invariant, >= minFractionDigits 237 fMinFractionDigits(0), 238 fParseIntegerOnly(FALSE), 239 fLenient(FALSE), 240 fCapitalizationContext(UDISPCTX_CAPITALIZATION_NONE) 241 { 242 fCurrency[0] = 0; 243 } 244 245 // ------------------------------------- 246 247 NumberFormat::~NumberFormat() 248 { 249 } 250 251 SharedNumberFormat::~SharedNumberFormat() { 252 delete ptr; 253 } 254 255 // ------------------------------------- 256 // copy constructor 257 258 NumberFormat::NumberFormat(const NumberFormat &source) 259 : Format(source) 260 { 261 *this = source; 262 } 263 264 // ------------------------------------- 265 // assignment operator 266 267 NumberFormat& 268 NumberFormat::operator=(const NumberFormat& rhs) 269 { 270 if (this != &rhs) 271 { 272 Format::operator=(rhs); 273 fGroupingUsed = rhs.fGroupingUsed; 274 fMaxIntegerDigits = rhs.fMaxIntegerDigits; 275 fMinIntegerDigits = rhs.fMinIntegerDigits; 276 fMaxFractionDigits = rhs.fMaxFractionDigits; 277 fMinFractionDigits = rhs.fMinFractionDigits; 278 fParseIntegerOnly = rhs.fParseIntegerOnly; 279 u_strncpy(fCurrency, rhs.fCurrency, 4); 280 fLenient = rhs.fLenient; 281 fCapitalizationContext = rhs.fCapitalizationContext; 282 } 283 return *this; 284 } 285 286 // ------------------------------------- 287 288 UBool 289 NumberFormat::operator==(const Format& that) const 290 { 291 // Format::operator== guarantees this cast is safe 292 NumberFormat* other = (NumberFormat*)&that; 293 294 #ifdef FMT_DEBUG 295 // This code makes it easy to determine why two format objects that should 296 // be equal aren't. 297 UBool first = TRUE; 298 if (!Format::operator==(that)) { 299 if (first) { printf("[ "); first = FALSE; } else { printf(", "); } 300 debug("Format::!="); 301 } 302 if (!(fMaxIntegerDigits == other->fMaxIntegerDigits && 303 fMinIntegerDigits == other->fMinIntegerDigits)) { 304 if (first) { printf("[ "); first = FALSE; } else { printf(", "); } 305 debug("Integer digits !="); 306 } 307 if (!(fMaxFractionDigits == other->fMaxFractionDigits && 308 fMinFractionDigits == other->fMinFractionDigits)) { 309 if (first) { printf("[ "); first = FALSE; } else { printf(", "); } 310 debug("Fraction digits !="); 311 } 312 if (!(fGroupingUsed == other->fGroupingUsed)) { 313 if (first) { printf("[ "); first = FALSE; } else { printf(", "); } 314 debug("fGroupingUsed != "); 315 } 316 if (!(fParseIntegerOnly == other->fParseIntegerOnly)) { 317 if (first) { printf("[ "); first = FALSE; } else { printf(", "); } 318 debug("fParseIntegerOnly != "); 319 } 320 if (!(u_strcmp(fCurrency, other->fCurrency) == 0)) { 321 if (first) { printf("[ "); first = FALSE; } else { printf(", "); } 322 debug("fCurrency !="); 323 } 324 if (!(fLenient == other->fLenient)) { 325 if (first) { printf("[ "); first = FALSE; } else { printf(", "); } 326 debug("fLenient != "); 327 } 328 if (!(fCapitalizationContext == other->fCapitalizationContext)) { 329 if (first) { printf("[ "); first = FALSE; } else { printf(", "); } 330 debug("fCapitalizationContext != "); 331 } 332 if (!first) { printf(" ]"); } 333 #endif 334 335 return ((this == &that) || 336 ((Format::operator==(that) && 337 fMaxIntegerDigits == other->fMaxIntegerDigits && 338 fMinIntegerDigits == other->fMinIntegerDigits && 339 fMaxFractionDigits == other->fMaxFractionDigits && 340 fMinFractionDigits == other->fMinFractionDigits && 341 fGroupingUsed == other->fGroupingUsed && 342 fParseIntegerOnly == other->fParseIntegerOnly && 343 u_strcmp(fCurrency, other->fCurrency) == 0 && 344 fLenient == other->fLenient && 345 fCapitalizationContext == other->fCapitalizationContext))); 346 } 347 348 // ------------------------------------- 349 // Default implementation sets unsupported error; subclasses should 350 // override. 351 352 UnicodeString& 353 NumberFormat::format(double /* unused number */, 354 UnicodeString& toAppendTo, 355 FieldPositionIterator* /* unused posIter */, 356 UErrorCode& status) const 357 { 358 if (!U_FAILURE(status)) { 359 status = U_UNSUPPORTED_ERROR; 360 } 361 return toAppendTo; 362 } 363 364 // ------------------------------------- 365 // Default implementation sets unsupported error; subclasses should 366 // override. 367 368 UnicodeString& 369 NumberFormat::format(int32_t /* unused number */, 370 UnicodeString& toAppendTo, 371 FieldPositionIterator* /* unused posIter */, 372 UErrorCode& status) const 373 { 374 if (!U_FAILURE(status)) { 375 status = U_UNSUPPORTED_ERROR; 376 } 377 return toAppendTo; 378 } 379 380 // ------------------------------------- 381 // Default implementation sets unsupported error; subclasses should 382 // override. 383 384 UnicodeString& 385 NumberFormat::format(int64_t /* unused number */, 386 UnicodeString& toAppendTo, 387 FieldPositionIterator* /* unused posIter */, 388 UErrorCode& status) const 389 { 390 if (!U_FAILURE(status)) { 391 status = U_UNSUPPORTED_ERROR; 392 } 393 return toAppendTo; 394 } 395 396 // ------------------------------------------ 397 // These functions add the status code, just fall back to the non-status versions 398 UnicodeString& 399 NumberFormat::format(double number, 400 UnicodeString& appendTo, 401 FieldPosition& pos, 402 UErrorCode &status) const { 403 if(U_SUCCESS(status)) { 404 return format(number,appendTo,pos); 405 } else { 406 return appendTo; 407 } 408 } 409 410 UnicodeString& 411 NumberFormat::format(int32_t number, 412 UnicodeString& appendTo, 413 FieldPosition& pos, 414 UErrorCode &status) const { 415 if(U_SUCCESS(status)) { 416 return format(number,appendTo,pos); 417 } else { 418 return appendTo; 419 } 420 } 421 422 UnicodeString& 423 NumberFormat::format(int64_t number, 424 UnicodeString& appendTo, 425 FieldPosition& pos, 426 UErrorCode &status) const { 427 if(U_SUCCESS(status)) { 428 return format(number,appendTo,pos); 429 } else { 430 return appendTo; 431 } 432 } 433 434 435 436 // ------------------------------------- 437 // Decimal Number format() default implementation 438 // Subclasses do not normally override this function, but rather the DigitList 439 // formatting functions.. 440 // The expected call chain from here is 441 // this function -> 442 // NumberFormat::format(Formattable -> 443 // DecimalFormat::format(DigitList 444 // 445 // Or, for subclasses of Formattable that do not know about DigitList, 446 // this Function -> 447 // NumberFormat::format(Formattable -> 448 // NumberFormat::format(DigitList -> 449 // XXXFormat::format(double 450 451 UnicodeString& 452 NumberFormat::format(const StringPiece &decimalNum, 453 UnicodeString& toAppendTo, 454 FieldPositionIterator* fpi, 455 UErrorCode& status) const 456 { 457 Formattable f; 458 f.setDecimalNumber(decimalNum, status); 459 format(f, toAppendTo, fpi, status); 460 return toAppendTo; 461 } 462 463 /** 464 * 465 // Formats the number object and save the format 466 // result in the toAppendTo string buffer. 467 468 // utility to save/restore state, used in two overloads 469 // of format(const Formattable&...) below. 470 * 471 * Old purpose of ArgExtractor was to avoid const. Not thread safe! 472 * 473 * keeping it around as a shim. 474 */ 475 class ArgExtractor { 476 const Formattable* num; 477 UChar save[4]; 478 UBool fWasCurrency; 479 480 public: 481 ArgExtractor(const NumberFormat& nf, const Formattable& obj, UErrorCode& status); 482 ~ArgExtractor(); 483 484 const Formattable* number(void) const; 485 const UChar *iso(void) const; 486 UBool wasCurrency(void) const; 487 }; 488 489 inline const Formattable* 490 ArgExtractor::number(void) const { 491 return num; 492 } 493 494 inline UBool 495 ArgExtractor::wasCurrency(void) const { 496 return fWasCurrency; 497 } 498 499 inline const UChar * 500 ArgExtractor::iso(void) const { 501 return save; 502 } 503 504 ArgExtractor::ArgExtractor(const NumberFormat& /*nf*/, const Formattable& obj, UErrorCode& /*status*/) 505 : num(&obj), fWasCurrency(FALSE) { 506 507 const UObject* o = obj.getObject(); // most commonly o==NULL 508 const CurrencyAmount* amt; 509 if (o != NULL && (amt = dynamic_cast<const CurrencyAmount*>(o)) != NULL) { 510 // getISOCurrency() returns a pointer to internal storage, so we 511 // copy it to retain it across the call to setCurrency(). 512 //const UChar* curr = amt->getISOCurrency(); 513 u_strcpy(save, amt->getISOCurrency()); 514 num = &amt->getNumber(); 515 fWasCurrency=TRUE; 516 } else { 517 save[0]=0; 518 } 519 } 520 521 ArgExtractor::~ArgExtractor() { 522 } 523 524 UnicodeString& NumberFormat::format(const DigitList &number, 525 UnicodeString& appendTo, 526 FieldPositionIterator* posIter, 527 UErrorCode& status) const { 528 // DecimalFormat overrides this function, and handles DigitList based big decimals. 529 // Other subclasses (ChoiceFormat, RuleBasedNumberFormat) do not (yet) handle DigitLists, 530 // so this default implementation falls back to formatting decimal numbers as doubles. 531 if (U_FAILURE(status)) { 532 return appendTo; 533 } 534 double dnum = number.getDouble(); 535 format(dnum, appendTo, posIter, status); 536 return appendTo; 537 } 538 539 540 541 UnicodeString& 542 NumberFormat::format(const DigitList &number, 543 UnicodeString& appendTo, 544 FieldPosition& pos, 545 UErrorCode &status) const { 546 // DecimalFormat overrides this function, and handles DigitList based big decimals. 547 // Other subclasses (ChoiceFormat, RuleBasedNumberFormat) do not (yet) handle DigitLists, 548 // so this default implementation falls back to formatting decimal numbers as doubles. 549 if (U_FAILURE(status)) { 550 return appendTo; 551 } 552 double dnum = number.getDouble(); 553 format(dnum, appendTo, pos, status); 554 return appendTo; 555 } 556 557 UnicodeString& 558 NumberFormat::format(const Formattable& obj, 559 UnicodeString& appendTo, 560 FieldPosition& pos, 561 UErrorCode& status) const 562 { 563 if (U_FAILURE(status)) return appendTo; 564 565 ArgExtractor arg(*this, obj, status); 566 const Formattable *n = arg.number(); 567 const UChar *iso = arg.iso(); 568 569 if(arg.wasCurrency() && u_strcmp(iso, getCurrency())) { 570 // trying to format a different currency. 571 // Right now, we clone. 572 LocalPointer<NumberFormat> cloneFmt((NumberFormat*)this->clone()); 573 cloneFmt->setCurrency(iso, status); 574 // next line should NOT recurse, because n is numeric whereas obj was a wrapper around currency amount. 575 return cloneFmt->format(*n, appendTo, pos, status); 576 } 577 578 if (n->isNumeric() && n->getDigitList() != NULL) { 579 // Decimal Number. We will have a DigitList available if the value was 580 // set to a decimal number, or if the value originated with a parse. 581 // 582 // The default implementation for formatting a DigitList converts it 583 // to a double, and formats that, allowing formatting classes that don't 584 // know about DigitList to continue to operate as they had. 585 // 586 // DecimalFormat overrides the DigitList formatting functions. 587 format(*n->getDigitList(), appendTo, pos, status); 588 } else { 589 switch (n->getType()) { 590 case Formattable::kDouble: 591 format(n->getDouble(), appendTo, pos); 592 break; 593 case Formattable::kLong: 594 format(n->getLong(), appendTo, pos); 595 break; 596 case Formattable::kInt64: 597 format(n->getInt64(), appendTo, pos); 598 break; 599 default: 600 status = U_INVALID_FORMAT_ERROR; 601 break; 602 } 603 } 604 605 return appendTo; 606 } 607 608 // -------------------------------------x 609 // Formats the number object and save the format 610 // result in the toAppendTo string buffer. 611 612 UnicodeString& 613 NumberFormat::format(const Formattable& obj, 614 UnicodeString& appendTo, 615 FieldPositionIterator* posIter, 616 UErrorCode& status) const 617 { 618 if (U_FAILURE(status)) return appendTo; 619 620 ArgExtractor arg(*this, obj, status); 621 const Formattable *n = arg.number(); 622 const UChar *iso = arg.iso(); 623 624 if(arg.wasCurrency() && u_strcmp(iso, getCurrency())) { 625 // trying to format a different currency. 626 // Right now, we clone. 627 LocalPointer<NumberFormat> cloneFmt((NumberFormat*)this->clone()); 628 cloneFmt->setCurrency(iso, status); 629 // next line should NOT recurse, because n is numeric whereas obj was a wrapper around currency amount. 630 return cloneFmt->format(*n, appendTo, posIter, status); 631 } 632 633 if (n->isNumeric() && n->getDigitList() != NULL) { 634 // Decimal Number 635 format(*n->getDigitList(), appendTo, posIter, status); 636 } else { 637 switch (n->getType()) { 638 case Formattable::kDouble: 639 format(n->getDouble(), appendTo, posIter, status); 640 break; 641 case Formattable::kLong: 642 format(n->getLong(), appendTo, posIter, status); 643 break; 644 case Formattable::kInt64: 645 format(n->getInt64(), appendTo, posIter, status); 646 break; 647 default: 648 status = U_INVALID_FORMAT_ERROR; 649 break; 650 } 651 } 652 653 return appendTo; 654 } 655 656 // ------------------------------------- 657 658 UnicodeString& 659 NumberFormat::format(int64_t number, 660 UnicodeString& appendTo, 661 FieldPosition& pos) const 662 { 663 // default so we don't introduce a new abstract method 664 return format((int32_t)number, appendTo, pos); 665 } 666 667 // ------------------------------------- 668 // Parses the string and save the result object as well 669 // as the final parsed position. 670 671 void 672 NumberFormat::parseObject(const UnicodeString& source, 673 Formattable& result, 674 ParsePosition& parse_pos) const 675 { 676 parse(source, result, parse_pos); 677 } 678 679 // ------------------------------------- 680 // Formats a double number and save the result in a string. 681 682 UnicodeString& 683 NumberFormat::format(double number, UnicodeString& appendTo) const 684 { 685 FieldPosition pos(0); 686 return format(number, appendTo, pos); 687 } 688 689 // ------------------------------------- 690 // Formats a long number and save the result in a string. 691 692 UnicodeString& 693 NumberFormat::format(int32_t number, UnicodeString& appendTo) const 694 { 695 FieldPosition pos(0); 696 return format(number, appendTo, pos); 697 } 698 699 // ------------------------------------- 700 // Formats a long number and save the result in a string. 701 702 UnicodeString& 703 NumberFormat::format(int64_t number, UnicodeString& appendTo) const 704 { 705 FieldPosition pos(0); 706 return format(number, appendTo, pos); 707 } 708 709 // ------------------------------------- 710 // Parses the text and save the result object. If the returned 711 // parse position is 0, that means the parsing failed, the status 712 // code needs to be set to failure. Ignores the returned parse 713 // position, otherwise. 714 715 void 716 NumberFormat::parse(const UnicodeString& text, 717 Formattable& result, 718 UErrorCode& status) const 719 { 720 if (U_FAILURE(status)) return; 721 722 ParsePosition parsePosition(0); 723 parse(text, result, parsePosition); 724 if (parsePosition.getIndex() == 0) { 725 status = U_INVALID_FORMAT_ERROR; 726 } 727 } 728 729 CurrencyAmount* NumberFormat::parseCurrency(const UnicodeString& text, 730 ParsePosition& pos) const { 731 // Default implementation only -- subclasses should override 732 Formattable parseResult; 733 int32_t start = pos.getIndex(); 734 parse(text, parseResult, pos); 735 if (pos.getIndex() != start) { 736 UChar curr[4]; 737 UErrorCode ec = U_ZERO_ERROR; 738 getEffectiveCurrency(curr, ec); 739 if (U_SUCCESS(ec)) { 740 LocalPointer<CurrencyAmount> currAmt(new CurrencyAmount(parseResult, curr, ec), ec); 741 if (U_FAILURE(ec)) { 742 pos.setIndex(start); // indicate failure 743 } else { 744 return currAmt.orphan(); 745 } 746 } 747 } 748 return NULL; 749 } 750 751 // ------------------------------------- 752 // Sets to only parse integers. 753 754 void 755 NumberFormat::setParseIntegerOnly(UBool value) 756 { 757 fParseIntegerOnly = value; 758 } 759 760 // ------------------------------------- 761 // Sets whether lenient parse is enabled. 762 763 void 764 NumberFormat::setLenient(UBool enable) 765 { 766 fLenient = enable; 767 } 768 769 // ------------------------------------- 770 // Create a number style NumberFormat instance with the default locale. 771 772 NumberFormat* U_EXPORT2 773 NumberFormat::createInstance(UErrorCode& status) 774 { 775 return createInstance(Locale::getDefault(), UNUM_DECIMAL, status); 776 } 777 778 // ------------------------------------- 779 // Create a number style NumberFormat instance with the inLocale locale. 780 781 NumberFormat* U_EXPORT2 782 NumberFormat::createInstance(const Locale& inLocale, UErrorCode& status) 783 { 784 return createInstance(inLocale, UNUM_DECIMAL, status); 785 } 786 787 // ------------------------------------- 788 // Create a currency style NumberFormat instance with the default locale. 789 790 NumberFormat* U_EXPORT2 791 NumberFormat::createCurrencyInstance(UErrorCode& status) 792 { 793 return createCurrencyInstance(Locale::getDefault(), status); 794 } 795 796 // ------------------------------------- 797 // Create a currency style NumberFormat instance with the inLocale locale. 798 799 NumberFormat* U_EXPORT2 800 NumberFormat::createCurrencyInstance(const Locale& inLocale, UErrorCode& status) 801 { 802 return createInstance(inLocale, UNUM_CURRENCY, status); 803 } 804 805 // ------------------------------------- 806 // Create a percent style NumberFormat instance with the default locale. 807 808 NumberFormat* U_EXPORT2 809 NumberFormat::createPercentInstance(UErrorCode& status) 810 { 811 return createInstance(Locale::getDefault(), UNUM_PERCENT, status); 812 } 813 814 // ------------------------------------- 815 // Create a percent style NumberFormat instance with the inLocale locale. 816 817 NumberFormat* U_EXPORT2 818 NumberFormat::createPercentInstance(const Locale& inLocale, UErrorCode& status) 819 { 820 return createInstance(inLocale, UNUM_PERCENT, status); 821 } 822 823 // ------------------------------------- 824 // Create a scientific style NumberFormat instance with the default locale. 825 826 NumberFormat* U_EXPORT2 827 NumberFormat::createScientificInstance(UErrorCode& status) 828 { 829 return createInstance(Locale::getDefault(), UNUM_SCIENTIFIC, status); 830 } 831 832 // ------------------------------------- 833 // Create a scientific style NumberFormat instance with the inLocale locale. 834 835 NumberFormat* U_EXPORT2 836 NumberFormat::createScientificInstance(const Locale& inLocale, UErrorCode& status) 837 { 838 return createInstance(inLocale, UNUM_SCIENTIFIC, status); 839 } 840 841 // ------------------------------------- 842 843 const Locale* U_EXPORT2 844 NumberFormat::getAvailableLocales(int32_t& count) 845 { 846 return Locale::getAvailableLocales(count); 847 } 848 849 // ------------------------------------------ 850 // 851 // Registration 852 // 853 //------------------------------------------- 854 855 #if !UCONFIG_NO_SERVICE 856 857 // ------------------------------------- 858 859 class ICUNumberFormatFactory : public ICUResourceBundleFactory { 860 public: 861 virtual ~ICUNumberFormatFactory(); 862 protected: 863 virtual UObject* handleCreate(const Locale& loc, int32_t kind, const ICUService* /* service */, UErrorCode& status) const { 864 return NumberFormat::makeInstance(loc, (UNumberFormatStyle)kind, status); 865 } 866 }; 867 868 ICUNumberFormatFactory::~ICUNumberFormatFactory() {} 869 870 // ------------------------------------- 871 872 class NFFactory : public LocaleKeyFactory { 873 private: 874 NumberFormatFactory* _delegate; 875 Hashtable* _ids; 876 877 public: 878 NFFactory(NumberFormatFactory* delegate) 879 : LocaleKeyFactory(delegate->visible() ? VISIBLE : INVISIBLE) 880 , _delegate(delegate) 881 , _ids(NULL) 882 { 883 } 884 885 virtual ~NFFactory(); 886 887 virtual UObject* create(const ICUServiceKey& key, const ICUService* service, UErrorCode& status) const 888 { 889 if (handlesKey(key, status)) { 890 const LocaleKey& lkey = (const LocaleKey&)key; 891 Locale loc; 892 lkey.canonicalLocale(loc); 893 int32_t kind = lkey.kind(); 894 895 UObject* result = _delegate->createFormat(loc, (UNumberFormatStyle)kind); 896 if (result == NULL) { 897 result = service->getKey((ICUServiceKey&)key /* cast away const */, NULL, this, status); 898 } 899 return result; 900 } 901 return NULL; 902 } 903 904 protected: 905 /** 906 * Return the set of ids that this factory supports (visible or 907 * otherwise). This can be called often and might need to be 908 * cached if it is expensive to create. 909 */ 910 virtual const Hashtable* getSupportedIDs(UErrorCode& status) const 911 { 912 if (U_SUCCESS(status)) { 913 if (!_ids) { 914 int32_t count = 0; 915 const UnicodeString * const idlist = _delegate->getSupportedIDs(count, status); 916 ((NFFactory*)this)->_ids = new Hashtable(status); /* cast away const */ 917 if (_ids) { 918 for (int i = 0; i < count; ++i) { 919 _ids->put(idlist[i], (void*)this, status); 920 } 921 } 922 } 923 return _ids; 924 } 925 return NULL; 926 } 927 }; 928 929 NFFactory::~NFFactory() 930 { 931 delete _delegate; 932 delete _ids; 933 } 934 935 class ICUNumberFormatService : public ICULocaleService { 936 public: 937 ICUNumberFormatService() 938 : ICULocaleService(UNICODE_STRING_SIMPLE("Number Format")) 939 { 940 UErrorCode status = U_ZERO_ERROR; 941 registerFactory(new ICUNumberFormatFactory(), status); 942 } 943 944 virtual ~ICUNumberFormatService(); 945 946 virtual UObject* cloneInstance(UObject* instance) const { 947 return ((NumberFormat*)instance)->clone(); 948 } 949 950 virtual UObject* handleDefault(const ICUServiceKey& key, UnicodeString* /* actualID */, UErrorCode& status) const { 951 LocaleKey& lkey = (LocaleKey&)key; 952 int32_t kind = lkey.kind(); 953 Locale loc; 954 lkey.currentLocale(loc); 955 return NumberFormat::makeInstance(loc, (UNumberFormatStyle)kind, status); 956 } 957 958 virtual UBool isDefault() const { 959 return countFactories() == 1; 960 } 961 }; 962 963 ICUNumberFormatService::~ICUNumberFormatService() {} 964 965 // ------------------------------------- 966 967 static void U_CALLCONV initNumberFormatService() { 968 U_ASSERT(gService == NULL); 969 ucln_i18n_registerCleanup(UCLN_I18N_NUMFMT, numfmt_cleanup); 970 gService = new ICUNumberFormatService(); 971 } 972 973 static ICULocaleService* 974 getNumberFormatService(void) 975 { 976 umtx_initOnce(gServiceInitOnce, &initNumberFormatService); 977 return gService; 978 } 979 980 static UBool haveService() { 981 return !gServiceInitOnce.isReset() && (getNumberFormatService() != NULL); 982 } 983 984 // ------------------------------------- 985 986 URegistryKey U_EXPORT2 987 NumberFormat::registerFactory(NumberFormatFactory* toAdopt, UErrorCode& status) 988 { 989 ICULocaleService *service = getNumberFormatService(); 990 if (service) { 991 NFFactory *tempnnf = new NFFactory(toAdopt); 992 if (tempnnf != NULL) { 993 return service->registerFactory(tempnnf, status); 994 } 995 } 996 status = U_MEMORY_ALLOCATION_ERROR; 997 return NULL; 998 } 999 1000 // ------------------------------------- 1001 1002 UBool U_EXPORT2 1003 NumberFormat::unregister(URegistryKey key, UErrorCode& status) 1004 { 1005 if (U_FAILURE(status)) { 1006 return FALSE; 1007 } 1008 if (haveService()) { 1009 return gService->unregister(key, status); 1010 } else { 1011 status = U_ILLEGAL_ARGUMENT_ERROR; 1012 return FALSE; 1013 } 1014 } 1015 1016 // ------------------------------------- 1017 StringEnumeration* U_EXPORT2 1018 NumberFormat::getAvailableLocales(void) 1019 { 1020 ICULocaleService *service = getNumberFormatService(); 1021 if (service) { 1022 return service->getAvailableLocales(); 1023 } 1024 return NULL; // no way to return error condition 1025 } 1026 #endif /* UCONFIG_NO_SERVICE */ 1027 // ------------------------------------- 1028 1029 enum { kKeyValueLenMax = 32 }; 1030 1031 NumberFormat* 1032 NumberFormat::internalCreateInstance(const Locale& loc, UNumberFormatStyle kind, UErrorCode& status) { 1033 if (kind == UNUM_CURRENCY) { 1034 char cfKeyValue[kKeyValueLenMax] = {0}; 1035 UErrorCode kvStatus = U_ZERO_ERROR; 1036 int32_t kLen = loc.getKeywordValue("cf", cfKeyValue, kKeyValueLenMax, kvStatus); 1037 if (U_SUCCESS(kvStatus) && kLen > 0 && uprv_strcmp(cfKeyValue,"account")==0) { 1038 kind = UNUM_CURRENCY_ACCOUNTING; 1039 } 1040 } 1041 #if !UCONFIG_NO_SERVICE 1042 if (haveService()) { 1043 return (NumberFormat*)gService->get(loc, kind, status); 1044 } 1045 #endif 1046 return makeInstance(loc, kind, status); 1047 } 1048 1049 NumberFormat* U_EXPORT2 1050 NumberFormat::createInstance(const Locale& loc, UNumberFormatStyle kind, UErrorCode& status) { 1051 if (kind != UNUM_DECIMAL) { 1052 return internalCreateInstance(loc, kind, status); 1053 } 1054 const SharedNumberFormat *shared = createSharedInstance(loc, kind, status); 1055 if (U_FAILURE(status)) { 1056 return NULL; 1057 } 1058 NumberFormat *result = static_cast<NumberFormat *>((*shared)->clone()); 1059 shared->removeRef(); 1060 if (result == NULL) { 1061 status = U_MEMORY_ALLOCATION_ERROR; 1062 } 1063 return result; 1064 } 1065 1066 1067 // ------------------------------------- 1068 // Checks if the thousand/10 thousand grouping is used in the 1069 // NumberFormat instance. 1070 1071 UBool 1072 NumberFormat::isGroupingUsed() const 1073 { 1074 return fGroupingUsed; 1075 } 1076 1077 // ------------------------------------- 1078 // Sets to use the thousand/10 thousand grouping in the 1079 // NumberFormat instance. 1080 1081 void 1082 NumberFormat::setGroupingUsed(UBool newValue) 1083 { 1084 fGroupingUsed = newValue; 1085 } 1086 1087 // ------------------------------------- 1088 // Gets the maximum number of digits for the integral part for 1089 // this NumberFormat instance. 1090 1091 int32_t NumberFormat::getMaximumIntegerDigits() const 1092 { 1093 return fMaxIntegerDigits; 1094 } 1095 1096 // ------------------------------------- 1097 // Sets the maximum number of digits for the integral part for 1098 // this NumberFormat instance. 1099 1100 void 1101 NumberFormat::setMaximumIntegerDigits(int32_t newValue) 1102 { 1103 fMaxIntegerDigits = uprv_max(0, uprv_min(newValue, gDefaultMaxIntegerDigits)); 1104 if(fMinIntegerDigits > fMaxIntegerDigits) 1105 fMinIntegerDigits = fMaxIntegerDigits; 1106 } 1107 1108 // ------------------------------------- 1109 // Gets the minimum number of digits for the integral part for 1110 // this NumberFormat instance. 1111 1112 int32_t 1113 NumberFormat::getMinimumIntegerDigits() const 1114 { 1115 return fMinIntegerDigits; 1116 } 1117 1118 // ------------------------------------- 1119 // Sets the minimum number of digits for the integral part for 1120 // this NumberFormat instance. 1121 1122 void 1123 NumberFormat::setMinimumIntegerDigits(int32_t newValue) 1124 { 1125 fMinIntegerDigits = uprv_max(0, uprv_min(newValue, gDefaultMinIntegerDigits)); 1126 if(fMinIntegerDigits > fMaxIntegerDigits) 1127 fMaxIntegerDigits = fMinIntegerDigits; 1128 } 1129 1130 // ------------------------------------- 1131 // Gets the maximum number of digits for the fractional part for 1132 // this NumberFormat instance. 1133 1134 int32_t 1135 NumberFormat::getMaximumFractionDigits() const 1136 { 1137 return fMaxFractionDigits; 1138 } 1139 1140 // ------------------------------------- 1141 // Sets the maximum number of digits for the fractional part for 1142 // this NumberFormat instance. 1143 1144 void 1145 NumberFormat::setMaximumFractionDigits(int32_t newValue) 1146 { 1147 fMaxFractionDigits = uprv_max(0, uprv_min(newValue, gDefaultMaxIntegerDigits)); 1148 if(fMaxFractionDigits < fMinFractionDigits) 1149 fMinFractionDigits = fMaxFractionDigits; 1150 } 1151 1152 // ------------------------------------- 1153 // Gets the minimum number of digits for the fractional part for 1154 // this NumberFormat instance. 1155 1156 int32_t 1157 NumberFormat::getMinimumFractionDigits() const 1158 { 1159 return fMinFractionDigits; 1160 } 1161 1162 // ------------------------------------- 1163 // Sets the minimum number of digits for the fractional part for 1164 // this NumberFormat instance. 1165 1166 void 1167 NumberFormat::setMinimumFractionDigits(int32_t newValue) 1168 { 1169 fMinFractionDigits = uprv_max(0, uprv_min(newValue, gDefaultMinIntegerDigits)); 1170 if (fMaxFractionDigits < fMinFractionDigits) 1171 fMaxFractionDigits = fMinFractionDigits; 1172 } 1173 1174 // ------------------------------------- 1175 1176 void NumberFormat::setCurrency(const UChar* theCurrency, UErrorCode& ec) { 1177 if (U_FAILURE(ec)) { 1178 return; 1179 } 1180 if (theCurrency) { 1181 u_strncpy(fCurrency, theCurrency, 3); 1182 fCurrency[3] = 0; 1183 } else { 1184 fCurrency[0] = 0; 1185 } 1186 } 1187 1188 const UChar* NumberFormat::getCurrency() const { 1189 return fCurrency; 1190 } 1191 1192 void NumberFormat::getEffectiveCurrency(UChar* result, UErrorCode& ec) const { 1193 const UChar* c = getCurrency(); 1194 if (*c != 0) { 1195 u_strncpy(result, c, 3); 1196 result[3] = 0; 1197 } else { 1198 const char* loc = getLocaleID(ULOC_VALID_LOCALE, ec); 1199 if (loc == NULL) { 1200 loc = uloc_getDefault(); 1201 } 1202 ucurr_forLocale(loc, result, 4, &ec); 1203 } 1204 } 1205 1206 //---------------------------------------------------------------------- 1207 1208 1209 void NumberFormat::setContext(UDisplayContext value, UErrorCode& status) 1210 { 1211 if (U_FAILURE(status)) 1212 return; 1213 if ( (UDisplayContextType)((uint32_t)value >> 8) == UDISPCTX_TYPE_CAPITALIZATION ) { 1214 fCapitalizationContext = value; 1215 } else { 1216 status = U_ILLEGAL_ARGUMENT_ERROR; 1217 } 1218 } 1219 1220 1221 UDisplayContext NumberFormat::getContext(UDisplayContextType type, UErrorCode& status) const 1222 { 1223 if (U_FAILURE(status)) 1224 return (UDisplayContext)0; 1225 if (type != UDISPCTX_TYPE_CAPITALIZATION) { 1226 status = U_ILLEGAL_ARGUMENT_ERROR; 1227 return (UDisplayContext)0; 1228 } 1229 return fCapitalizationContext; 1230 } 1231 1232 1233 // ------------------------------------- 1234 // Creates the NumberFormat instance of the specified style (number, currency, 1235 // or percent) for the desired locale. 1236 1237 static void U_CALLCONV nscacheInit() { 1238 U_ASSERT(NumberingSystem_cache == NULL); 1239 ucln_i18n_registerCleanup(UCLN_I18N_NUMFMT, numfmt_cleanup); 1240 UErrorCode status = U_ZERO_ERROR; 1241 NumberingSystem_cache = uhash_open(uhash_hashLong, 1242 uhash_compareLong, 1243 NULL, 1244 &status); 1245 if (U_FAILURE(status)) { 1246 // Number Format code will run with no cache if creation fails. 1247 NumberingSystem_cache = NULL; 1248 return; 1249 } 1250 uhash_setValueDeleter(NumberingSystem_cache, deleteNumberingSystem); 1251 } 1252 1253 template<> U_I18N_API 1254 const SharedNumberFormat *LocaleCacheKey<SharedNumberFormat>::createObject( 1255 const void * /*unused*/, UErrorCode &status) const { 1256 const char *localeId = fLoc.getName(); 1257 NumberFormat *nf = NumberFormat::internalCreateInstance( 1258 localeId, UNUM_DECIMAL, status); 1259 if (U_FAILURE(status)) { 1260 return NULL; 1261 } 1262 SharedNumberFormat *result = new SharedNumberFormat(nf); 1263 if (result == NULL) { 1264 status = U_MEMORY_ALLOCATION_ERROR; 1265 delete nf; 1266 return NULL; 1267 } 1268 result->addRef(); 1269 return result; 1270 } 1271 1272 const SharedNumberFormat* U_EXPORT2 1273 NumberFormat::createSharedInstance(const Locale& loc, UNumberFormatStyle kind, UErrorCode& status) { 1274 if (U_FAILURE(status)) { 1275 return NULL; 1276 } 1277 if (kind != UNUM_DECIMAL) { 1278 status = U_UNSUPPORTED_ERROR; 1279 return NULL; 1280 } 1281 const SharedNumberFormat *result = NULL; 1282 UnifiedCache::getByLocale(loc, result, status); 1283 return result; 1284 } 1285 1286 UBool 1287 NumberFormat::isStyleSupported(UNumberFormatStyle style) { 1288 return gLastResortNumberPatterns[style] != NULL; 1289 } 1290 1291 NumberFormat* 1292 NumberFormat::makeInstance(const Locale& desiredLocale, 1293 UNumberFormatStyle style, 1294 UErrorCode& status) { 1295 return makeInstance(desiredLocale, style, false, status); 1296 } 1297 1298 NumberFormat* 1299 NumberFormat::makeInstance(const Locale& desiredLocale, 1300 UNumberFormatStyle style, 1301 UBool mustBeDecimalFormat, 1302 UErrorCode& status) { 1303 if (U_FAILURE(status)) return NULL; 1304 1305 if (style < 0 || style >= UNUM_FORMAT_STYLE_COUNT) { 1306 status = U_ILLEGAL_ARGUMENT_ERROR; 1307 return NULL; 1308 } 1309 1310 // Some styles are not supported. This is a result of merging 1311 // the @draft ICU 4.2 NumberFormat::EStyles into the long-existing UNumberFormatStyle. 1312 // Ticket #8503 is for reviewing/fixing/merging the two relevant implementations: 1313 // this one and unum_open(). 1314 // The UNUM_PATTERN_ styles are not supported here 1315 // because this method does not take a pattern string. 1316 if (!isStyleSupported(style)) { 1317 status = U_UNSUPPORTED_ERROR; 1318 return NULL; 1319 } 1320 1321 #if U_PLATFORM_USES_ONLY_WIN32_API 1322 if (!mustBeDecimalFormat) { 1323 char buffer[8]; 1324 int32_t count = desiredLocale.getKeywordValue("compat", buffer, sizeof(buffer), status); 1325 1326 // if the locale has "@compat=host", create a host-specific NumberFormat 1327 if (U_SUCCESS(status) && count > 0 && uprv_strcmp(buffer, "host") == 0) { 1328 Win32NumberFormat *f = NULL; 1329 UBool curr = TRUE; 1330 1331 switch (style) { 1332 case UNUM_DECIMAL: 1333 curr = FALSE; 1334 // fall-through 1335 1336 case UNUM_CURRENCY: 1337 case UNUM_CURRENCY_ISO: // do not support plural formatting here 1338 case UNUM_CURRENCY_PLURAL: 1339 case UNUM_CURRENCY_ACCOUNTING: 1340 case UNUM_CASH_CURRENCY: 1341 case UNUM_CURRENCY_STANDARD: 1342 f = new Win32NumberFormat(desiredLocale, curr, status); 1343 1344 if (U_SUCCESS(status)) { 1345 return f; 1346 } 1347 1348 delete f; 1349 break; 1350 default: 1351 break; 1352 } 1353 } 1354 } 1355 #endif 1356 // Use numbering system cache hashtable 1357 umtx_initOnce(gNSCacheInitOnce, &nscacheInit); 1358 1359 // Get cached numbering system 1360 LocalPointer<NumberingSystem> ownedNs; 1361 NumberingSystem *ns = NULL; 1362 if (NumberingSystem_cache != NULL) { 1363 // TODO: Bad hash key usage, see ticket #8504. 1364 int32_t hashKey = desiredLocale.hashCode(); 1365 1366 Mutex lock(&nscacheMutex); 1367 ns = (NumberingSystem *)uhash_iget(NumberingSystem_cache, hashKey); 1368 if (ns == NULL) { 1369 ns = NumberingSystem::createInstance(desiredLocale,status); 1370 uhash_iput(NumberingSystem_cache, hashKey, (void*)ns, &status); 1371 } 1372 } else { 1373 ownedNs.adoptInstead(NumberingSystem::createInstance(desiredLocale,status)); 1374 ns = ownedNs.getAlias(); 1375 } 1376 1377 // check results of getting a numbering system 1378 if (U_FAILURE(status)) { 1379 return NULL; 1380 } 1381 1382 if (mustBeDecimalFormat && ns->isAlgorithmic()) { 1383 status = U_UNSUPPORTED_ERROR; 1384 return NULL; 1385 } 1386 1387 LocalPointer<DecimalFormatSymbols> symbolsToAdopt; 1388 UnicodeString pattern; 1389 LocalUResourceBundlePointer ownedResource(ures_open(NULL, desiredLocale.getName(), &status)); 1390 if (U_FAILURE(status)) { 1391 return NULL; 1392 } 1393 else { 1394 // Loads the decimal symbols of the desired locale. 1395 symbolsToAdopt.adoptInsteadAndCheckErrorCode(new DecimalFormatSymbols(desiredLocale, status), status); 1396 if (U_FAILURE(status)) { 1397 return NULL; 1398 } 1399 1400 UResourceBundle *resource = ownedResource.orphan(); 1401 UResourceBundle *numElements = ures_getByKeyWithFallback(resource, gNumberElements, NULL, &status); 1402 resource = ures_getByKeyWithFallback(numElements, ns->getName(), resource, &status); 1403 resource = ures_getByKeyWithFallback(resource, gPatterns, resource, &status); 1404 ownedResource.adoptInstead(resource); 1405 1406 int32_t patLen = 0; 1407 const UChar *patResStr = ures_getStringByKeyWithFallback(resource, gFormatKeys[style], &patLen, &status); 1408 1409 // Didn't find a pattern specific to the numbering system, so fall back to "latn" 1410 if ( status == U_MISSING_RESOURCE_ERROR && uprv_strcmp(gLatn,ns->getName())) { 1411 status = U_ZERO_ERROR; 1412 resource = ures_getByKeyWithFallback(numElements, gLatn, resource, &status); 1413 resource = ures_getByKeyWithFallback(resource, gPatterns, resource, &status); 1414 patResStr = ures_getStringByKeyWithFallback(resource, gFormatKeys[style], &patLen, &status); 1415 } 1416 1417 ures_close(numElements); 1418 1419 // Creates the specified decimal format style of the desired locale. 1420 pattern.setTo(TRUE, patResStr, patLen); 1421 } 1422 if (U_FAILURE(status)) { 1423 return NULL; 1424 } 1425 if(style==UNUM_CURRENCY || style == UNUM_CURRENCY_ISO || style == UNUM_CURRENCY_ACCOUNTING 1426 || style == UNUM_CASH_CURRENCY || style == UNUM_CURRENCY_STANDARD){ 1427 const UChar* currPattern = symbolsToAdopt->getCurrencyPattern(); 1428 if(currPattern!=NULL){ 1429 pattern.setTo(currPattern, u_strlen(currPattern)); 1430 } 1431 } 1432 1433 1434 NumberFormat *f; 1435 if (ns->isAlgorithmic()) { 1436 UnicodeString nsDesc; 1437 UnicodeString nsRuleSetGroup; 1438 UnicodeString nsRuleSetName; 1439 Locale nsLoc; 1440 URBNFRuleSetTag desiredRulesType = URBNF_NUMBERING_SYSTEM; 1441 1442 nsDesc.setTo(ns->getDescription()); 1443 int32_t firstSlash = nsDesc.indexOf(gSlash); 1444 int32_t lastSlash = nsDesc.lastIndexOf(gSlash); 1445 if ( lastSlash > firstSlash ) { 1446 CharString nsLocID; 1447 1448 nsLocID.appendInvariantChars(nsDesc.tempSubString(0, firstSlash), status); 1449 nsRuleSetGroup.setTo(nsDesc,firstSlash+1,lastSlash-firstSlash-1); 1450 nsRuleSetName.setTo(nsDesc,lastSlash+1); 1451 1452 nsLoc = Locale::createFromName(nsLocID.data()); 1453 1454 UnicodeString SpelloutRules = UNICODE_STRING_SIMPLE("SpelloutRules"); 1455 if ( nsRuleSetGroup.compare(SpelloutRules) == 0 ) { 1456 desiredRulesType = URBNF_SPELLOUT; 1457 } 1458 } else { 1459 nsLoc = desiredLocale; 1460 nsRuleSetName.setTo(nsDesc); 1461 } 1462 1463 RuleBasedNumberFormat *r = new RuleBasedNumberFormat(desiredRulesType,nsLoc,status); 1464 if (r == NULL) { 1465 status = U_MEMORY_ALLOCATION_ERROR; 1466 return NULL; 1467 } 1468 r->setDefaultRuleSet(nsRuleSetName,status); 1469 f = r; 1470 } else { 1471 // replace single currency sign in the pattern with double currency sign 1472 // if the style is UNUM_CURRENCY_ISO 1473 if (style == UNUM_CURRENCY_ISO) { 1474 pattern.findAndReplace(UnicodeString(TRUE, gSingleCurrencySign, 1), 1475 UnicodeString(TRUE, gDoubleCurrencySign, 2)); 1476 } 1477 1478 // "new DecimalFormat()" does not adopt the symbols if its memory allocation fails. 1479 DecimalFormatSymbols *syms = symbolsToAdopt.orphan(); 1480 DecimalFormat* df = new DecimalFormat(pattern, syms, style, status); 1481 1482 // if it is cash currency style, setCurrencyUsage with usage 1483 if (style == UNUM_CASH_CURRENCY){ 1484 df->setCurrencyUsage(UCURR_USAGE_CASH, &status); 1485 } 1486 1487 if (U_FAILURE(status)) { 1488 delete df; 1489 return NULL; 1490 } 1491 1492 f = df; 1493 if (f == NULL) { 1494 delete syms; 1495 status = U_MEMORY_ALLOCATION_ERROR; 1496 return NULL; 1497 } 1498 } 1499 1500 f->setLocaleIDs(ures_getLocaleByType(ownedResource.getAlias(), ULOC_VALID_LOCALE, &status), 1501 ures_getLocaleByType(ownedResource.getAlias(), ULOC_ACTUAL_LOCALE, &status)); 1502 if (U_FAILURE(status)) { 1503 delete f; 1504 return NULL; 1505 } 1506 return f; 1507 } 1508 1509 U_NAMESPACE_END 1510 1511 #endif /* #if !UCONFIG_NO_FORMATTING */ 1512 1513 //eof 1514
