1 // © 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /* 4 ******************************************************************************* 5 * Copyright (C) 1997-2015, International Business Machines Corporation and others. 6 * All Rights Reserved. 7 * Modification History: 8 * 9 * Date Name Description 10 * 06/24/99 helena Integrated Alan's NF enhancements and Java2 bug fixes 11 ******************************************************************************* 12 */ 13 14 #ifndef _UNUM 15 #define _UNUM 16 17 #include "unicode/utypes.h" 18 19 #if !UCONFIG_NO_FORMATTING 20 21 #include "unicode/localpointer.h" 22 #include "unicode/uloc.h" 23 #include "unicode/ucurr.h" 24 #include "unicode/umisc.h" 25 #include "unicode/parseerr.h" 26 #include "unicode/uformattable.h" 27 #include "unicode/udisplaycontext.h" 28 #include "unicode/ufieldpositer.h" 29 30 /** 31 * \file 32 * \brief C API: Compatibility APIs for number formatting. 33 * 34 * <h2> Number Format C API </h2> 35 * 36 * <p><strong>IMPORTANT:</strong> New users with are strongly encouraged to 37 * see if unumberformatter.h fits their use case. Although not deprecated, 38 * this header is provided for backwards compatibility only. 39 * 40 * Number Format C API Provides functions for 41 * formatting and parsing a number. Also provides methods for 42 * determining which locales have number formats, and what their names 43 * are. 44 * <P> 45 * UNumberFormat helps you to format and parse numbers for any locale. 46 * Your code can be completely independent of the locale conventions 47 * for decimal points, thousands-separators, or even the particular 48 * decimal digits used, or whether the number format is even decimal. 49 * There are different number format styles like decimal, currency, 50 * percent and spellout. 51 * <P> 52 * To format a number for the current Locale, use one of the static 53 * factory methods: 54 * <pre> 55 * \code 56 * UChar myString[20]; 57 * double myNumber = 7.0; 58 * UErrorCode status = U_ZERO_ERROR; 59 * UNumberFormat* nf = unum_open(UNUM_DEFAULT, NULL, -1, NULL, NULL, &status); 60 * unum_formatDouble(nf, myNumber, myString, 20, NULL, &status); 61 * printf(" Example 1: %s\n", austrdup(myString) ); //austrdup( a function used to convert UChar* to char*) 62 * \endcode 63 * </pre> 64 * If you are formatting multiple numbers, it is more efficient to get 65 * the format and use it multiple times so that the system doesn't 66 * have to fetch the information about the local language and country 67 * conventions multiple times. 68 * <pre> 69 * \code 70 * uint32_t i, resultlength, reslenneeded; 71 * UErrorCode status = U_ZERO_ERROR; 72 * UFieldPosition pos; 73 * uint32_t a[] = { 123, 3333, -1234567 }; 74 * const uint32_t a_len = sizeof(a) / sizeof(a[0]); 75 * UNumberFormat* nf; 76 * UChar* result = NULL; 77 * 78 * nf = unum_open(UNUM_DEFAULT, NULL, -1, NULL, NULL, &status); 79 * for (i = 0; i < a_len; i++) { 80 * resultlength=0; 81 * reslenneeded=unum_format(nf, a[i], NULL, resultlength, &pos, &status); 82 * result = NULL; 83 * if(status==U_BUFFER_OVERFLOW_ERROR){ 84 * status=U_ZERO_ERROR; 85 * resultlength=reslenneeded+1; 86 * result=(UChar*)malloc(sizeof(UChar) * resultlength); 87 * unum_format(nf, a[i], result, resultlength, &pos, &status); 88 * } 89 * printf( " Example 2: %s\n", austrdup(result)); 90 * free(result); 91 * } 92 * \endcode 93 * </pre> 94 * To format a number for a different Locale, specify it in the 95 * call to unum_open(). 96 * <pre> 97 * \code 98 * UNumberFormat* nf = unum_open(UNUM_DEFAULT, NULL, -1, "fr_FR", NULL, &success) 99 * \endcode 100 * </pre> 101 * You can use a NumberFormat API unum_parse() to parse. 102 * <pre> 103 * \code 104 * UErrorCode status = U_ZERO_ERROR; 105 * int32_t pos=0; 106 * int32_t num; 107 * num = unum_parse(nf, str, u_strlen(str), &pos, &status); 108 * \endcode 109 * </pre> 110 * Use UNUM_DECIMAL to get the normal number format for that country. 111 * There are other static options available. Use UNUM_CURRENCY 112 * to get the currency number format for that country. Use UNUM_PERCENT 113 * to get a format for displaying percentages. With this format, a 114 * fraction from 0.53 is displayed as 53%. 115 * <P> 116 * Use a pattern to create either a DecimalFormat or a RuleBasedNumberFormat 117 * formatter. The pattern must conform to the syntax defined for those 118 * formatters. 119 * <P> 120 * You can also control the display of numbers with such function as 121 * unum_getAttributes() and unum_setAttributes(), which let you set the 122 * minimum fraction digits, grouping, etc. 123 * @see UNumberFormatAttributes for more details 124 * <P> 125 * You can also use forms of the parse and format methods with 126 * ParsePosition and UFieldPosition to allow you to: 127 * <ul type=round> 128 * <li>(a) progressively parse through pieces of a string. 129 * <li>(b) align the decimal point and other areas. 130 * </ul> 131 * <p> 132 * It is also possible to change or set the symbols used for a particular 133 * locale like the currency symbol, the grouping separator , monetary separator 134 * etc by making use of functions unum_setSymbols() and unum_getSymbols(). 135 */ 136 137 /** A number formatter. 138 * For usage in C programs. 139 * @stable ICU 2.0 140 */ 141 typedef void* UNumberFormat; 142 143 /** The possible number format styles. 144 * @stable ICU 2.0 145 */ 146 typedef enum UNumberFormatStyle { 147 /** 148 * Decimal format defined by a pattern string. 149 * @stable ICU 3.0 150 */ 151 UNUM_PATTERN_DECIMAL=0, 152 /** 153 * Decimal format ("normal" style). 154 * @stable ICU 2.0 155 */ 156 UNUM_DECIMAL=1, 157 /** 158 * Currency format (generic). 159 * Defaults to UNUM_CURRENCY_STANDARD style 160 * (using currency symbol, e.g., "$1.00", with non-accounting 161 * style for negative values e.g. using minus sign). 162 * The specific style may be specified using the -cf- locale key. 163 * @stable ICU 2.0 164 */ 165 UNUM_CURRENCY=2, 166 /** 167 * Percent format 168 * @stable ICU 2.0 169 */ 170 UNUM_PERCENT=3, 171 /** 172 * Scientific format 173 * @stable ICU 2.1 174 */ 175 UNUM_SCIENTIFIC=4, 176 /** 177 * Spellout rule-based format. The default ruleset can be specified/changed using 178 * unum_setTextAttribute with UNUM_DEFAULT_RULESET; the available public rulesets 179 * can be listed using unum_getTextAttribute with UNUM_PUBLIC_RULESETS. 180 * @stable ICU 2.0 181 */ 182 UNUM_SPELLOUT=5, 183 /** 184 * Ordinal rule-based format . The default ruleset can be specified/changed using 185 * unum_setTextAttribute with UNUM_DEFAULT_RULESET; the available public rulesets 186 * can be listed using unum_getTextAttribute with UNUM_PUBLIC_RULESETS. 187 * @stable ICU 3.0 188 */ 189 UNUM_ORDINAL=6, 190 /** 191 * Duration rule-based format 192 * @stable ICU 3.0 193 */ 194 UNUM_DURATION=7, 195 /** 196 * Numbering system rule-based format 197 * @stable ICU 4.2 198 */ 199 UNUM_NUMBERING_SYSTEM=8, 200 /** 201 * Rule-based format defined by a pattern string. 202 * @stable ICU 3.0 203 */ 204 UNUM_PATTERN_RULEBASED=9, 205 /** 206 * Currency format with an ISO currency code, e.g., "USD1.00". 207 * @stable ICU 4.8 208 */ 209 UNUM_CURRENCY_ISO=10, 210 /** 211 * Currency format with a pluralized currency name, 212 * e.g., "1.00 US dollar" and "3.00 US dollars". 213 * @stable ICU 4.8 214 */ 215 UNUM_CURRENCY_PLURAL=11, 216 /** 217 * Currency format for accounting, e.g., "($3.00)" for 218 * negative currency amount instead of "-$3.00" ({@link #UNUM_CURRENCY}). 219 * Overrides any style specified using -cf- key in locale. 220 * @stable ICU 53 221 */ 222 UNUM_CURRENCY_ACCOUNTING=12, 223 /** 224 * Currency format with a currency symbol given CASH usage, e.g., 225 * "NT$3" instead of "NT$3.23". 226 * @stable ICU 54 227 */ 228 UNUM_CASH_CURRENCY=13, 229 /** 230 * Decimal format expressed using compact notation 231 * (short form, corresponds to UNumberCompactStyle=UNUM_SHORT) 232 * e.g. "23K", "45B" 233 * @stable ICU 56 234 */ 235 UNUM_DECIMAL_COMPACT_SHORT=14, 236 /** 237 * Decimal format expressed using compact notation 238 * (long form, corresponds to UNumberCompactStyle=UNUM_LONG) 239 * e.g. "23 thousand", "45 billion" 240 * @stable ICU 56 241 */ 242 UNUM_DECIMAL_COMPACT_LONG=15, 243 /** 244 * Currency format with a currency symbol, e.g., "$1.00", 245 * using non-accounting style for negative values (e.g. minus sign). 246 * Overrides any style specified using -cf- key in locale. 247 * @stable ICU 56 248 */ 249 UNUM_CURRENCY_STANDARD=16, 250 251 #ifndef U_HIDE_DEPRECATED_API 252 /** 253 * One more than the highest normal UNumberFormatStyle value. 254 * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420. 255 */ 256 UNUM_FORMAT_STYLE_COUNT=17, 257 #endif /* U_HIDE_DEPRECATED_API */ 258 259 /** 260 * Default format 261 * @stable ICU 2.0 262 */ 263 UNUM_DEFAULT = UNUM_DECIMAL, 264 /** 265 * Alias for UNUM_PATTERN_DECIMAL 266 * @stable ICU 3.0 267 */ 268 UNUM_IGNORE = UNUM_PATTERN_DECIMAL 269 } UNumberFormatStyle; 270 271 /** The possible number format rounding modes. 272 * 273 * <p> 274 * For more detail on rounding modes, see: 275 * http://userguide.icu-project.org/formatparse/numbers/rounding-modes 276 * 277 * @stable ICU 2.0 278 */ 279 typedef enum UNumberFormatRoundingMode { 280 UNUM_ROUND_CEILING, 281 UNUM_ROUND_FLOOR, 282 UNUM_ROUND_DOWN, 283 UNUM_ROUND_UP, 284 /** 285 * Half-even rounding 286 * @stable, ICU 3.8 287 */ 288 UNUM_ROUND_HALFEVEN, 289 #ifndef U_HIDE_DEPRECATED_API 290 /** 291 * Half-even rounding, misspelled name 292 * @deprecated, ICU 3.8 293 */ 294 UNUM_FOUND_HALFEVEN = UNUM_ROUND_HALFEVEN, 295 #endif /* U_HIDE_DEPRECATED_API */ 296 UNUM_ROUND_HALFDOWN = UNUM_ROUND_HALFEVEN + 1, 297 UNUM_ROUND_HALFUP, 298 /** 299 * ROUND_UNNECESSARY reports an error if formatted result is not exact. 300 * @stable ICU 4.8 301 */ 302 UNUM_ROUND_UNNECESSARY 303 } UNumberFormatRoundingMode; 304 305 /** The possible number format pad positions. 306 * @stable ICU 2.0 307 */ 308 typedef enum UNumberFormatPadPosition { 309 UNUM_PAD_BEFORE_PREFIX, 310 UNUM_PAD_AFTER_PREFIX, 311 UNUM_PAD_BEFORE_SUFFIX, 312 UNUM_PAD_AFTER_SUFFIX 313 } UNumberFormatPadPosition; 314 315 /** 316 * Constants for specifying short or long format. 317 * @stable ICU 51 318 */ 319 typedef enum UNumberCompactStyle { 320 /** @stable ICU 51 */ 321 UNUM_SHORT, 322 /** @stable ICU 51 */ 323 UNUM_LONG 324 /** @stable ICU 51 */ 325 } UNumberCompactStyle; 326 327 /** 328 * Constants for specifying currency spacing 329 * @stable ICU 4.8 330 */ 331 enum UCurrencySpacing { 332 /** @stable ICU 4.8 */ 333 UNUM_CURRENCY_MATCH, 334 /** @stable ICU 4.8 */ 335 UNUM_CURRENCY_SURROUNDING_MATCH, 336 /** @stable ICU 4.8 */ 337 UNUM_CURRENCY_INSERT, 338 339 /* Do not conditionalize the following with #ifndef U_HIDE_DEPRECATED_API, 340 * it is needed for layout of DecimalFormatSymbols object. */ 341 /** 342 * One more than the highest normal UCurrencySpacing value. 343 * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420. 344 */ 345 UNUM_CURRENCY_SPACING_COUNT 346 }; 347 typedef enum UCurrencySpacing UCurrencySpacing; /**< @stable ICU 4.8 */ 348 349 350 /** 351 * FieldPosition and UFieldPosition selectors for format fields 352 * defined by NumberFormat and UNumberFormat. 353 * @stable ICU 49 354 */ 355 typedef enum UNumberFormatFields { 356 /** @stable ICU 49 */ 357 UNUM_INTEGER_FIELD, 358 /** @stable ICU 49 */ 359 UNUM_FRACTION_FIELD, 360 /** @stable ICU 49 */ 361 UNUM_DECIMAL_SEPARATOR_FIELD, 362 /** @stable ICU 49 */ 363 UNUM_EXPONENT_SYMBOL_FIELD, 364 /** @stable ICU 49 */ 365 UNUM_EXPONENT_SIGN_FIELD, 366 /** @stable ICU 49 */ 367 UNUM_EXPONENT_FIELD, 368 /** @stable ICU 49 */ 369 UNUM_GROUPING_SEPARATOR_FIELD, 370 /** @stable ICU 49 */ 371 UNUM_CURRENCY_FIELD, 372 /** @stable ICU 49 */ 373 UNUM_PERCENT_FIELD, 374 /** @stable ICU 49 */ 375 UNUM_PERMILL_FIELD, 376 /** @stable ICU 49 */ 377 UNUM_SIGN_FIELD, 378 #ifndef U_HIDE_DRAFT_API 379 /** @draft ICU 64 */ 380 UNUM_MEASURE_UNIT_FIELD, 381 /** @draft ICU 64 */ 382 UNUM_COMPACT_FIELD, 383 #endif /* U_HIDE_DRAFT_API */ 384 385 #ifndef U_HIDE_DEPRECATED_API 386 /** 387 * One more than the highest normal UNumberFormatFields value. 388 * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420. 389 */ 390 UNUM_FIELD_COUNT = UNUM_SIGN_FIELD + 3 391 #endif /* U_HIDE_DEPRECATED_API */ 392 } UNumberFormatFields; 393 394 395 /** 396 * Create and return a new UNumberFormat for formatting and parsing 397 * numbers. A UNumberFormat may be used to format numbers by calling 398 * {@link #unum_format }, and to parse numbers by calling {@link #unum_parse }. 399 * The caller must call {@link #unum_close } when done to release resources 400 * used by this object. 401 * @param style The type of number format to open: one of 402 * UNUM_DECIMAL, UNUM_CURRENCY, UNUM_PERCENT, UNUM_SCIENTIFIC, 403 * UNUM_CURRENCY_ISO, UNUM_CURRENCY_PLURAL, UNUM_SPELLOUT, 404 * UNUM_ORDINAL, UNUM_DURATION, UNUM_NUMBERING_SYSTEM, 405 * UNUM_PATTERN_DECIMAL, UNUM_PATTERN_RULEBASED, or UNUM_DEFAULT. 406 * If UNUM_PATTERN_DECIMAL or UNUM_PATTERN_RULEBASED is passed then the 407 * number format is opened using the given pattern, which must conform 408 * to the syntax described in DecimalFormat or RuleBasedNumberFormat, 409 * respectively. 410 * 411 * <p><strong>NOTE::</strong> New users with are strongly encouraged to 412 * use unumf_openWithSkeletonAndLocale instead of unum_open. 413 * 414 * @param pattern A pattern specifying the format to use. 415 * This parameter is ignored unless the style is 416 * UNUM_PATTERN_DECIMAL or UNUM_PATTERN_RULEBASED. 417 * @param patternLength The number of characters in the pattern, or -1 418 * if null-terminated. This parameter is ignored unless the style is 419 * UNUM_PATTERN. 420 * @param locale A locale identifier to use to determine formatting 421 * and parsing conventions, or NULL to use the default locale. 422 * @param parseErr A pointer to a UParseError struct to receive the 423 * details of any parsing errors, or NULL if no parsing error details 424 * are desired. 425 * @param status A pointer to an input-output UErrorCode. 426 * @return A pointer to a newly created UNumberFormat, or NULL if an 427 * error occurred. 428 * @see unum_close 429 * @see DecimalFormat 430 * @stable ICU 2.0 431 */ 432 U_STABLE UNumberFormat* U_EXPORT2 433 unum_open( UNumberFormatStyle style, 434 const UChar* pattern, 435 int32_t patternLength, 436 const char* locale, 437 UParseError* parseErr, 438 UErrorCode* status); 439 440 441 /** 442 * Close a UNumberFormat. 443 * Once closed, a UNumberFormat may no longer be used. 444 * @param fmt The formatter to close. 445 * @stable ICU 2.0 446 */ 447 U_STABLE void U_EXPORT2 448 unum_close(UNumberFormat* fmt); 449 450 #if U_SHOW_CPLUSPLUS_API 451 452 U_NAMESPACE_BEGIN 453 454 /** 455 * \class LocalUNumberFormatPointer 456 * "Smart pointer" class, closes a UNumberFormat via unum_close(). 457 * For most methods see the LocalPointerBase base class. 458 * 459 * @see LocalPointerBase 460 * @see LocalPointer 461 * @stable ICU 4.4 462 */ 463 U_DEFINE_LOCAL_OPEN_POINTER(LocalUNumberFormatPointer, UNumberFormat, unum_close); 464 465 U_NAMESPACE_END 466 467 #endif 468 469 /** 470 * Open a copy of a UNumberFormat. 471 * This function performs a deep copy. 472 * @param fmt The format to copy 473 * @param status A pointer to an UErrorCode to receive any errors. 474 * @return A pointer to a UNumberFormat identical to fmt. 475 * @stable ICU 2.0 476 */ 477 U_STABLE UNumberFormat* U_EXPORT2 478 unum_clone(const UNumberFormat *fmt, 479 UErrorCode *status); 480 481 /** 482 * Format an integer using a UNumberFormat. 483 * The integer will be formatted according to the UNumberFormat's locale. 484 * @param fmt The formatter to use. 485 * @param number The number to format. 486 * @param result A pointer to a buffer to receive the NULL-terminated formatted number. If 487 * the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) 488 * then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number 489 * doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. 490 * @param resultLength The maximum size of result. 491 * @param pos A pointer to a UFieldPosition. On input, position->field 492 * is read. On output, position->beginIndex and position->endIndex indicate 493 * the beginning and ending indices of field number position->field, if such 494 * a field exists. This parameter may be NULL, in which case no field 495 * @param status A pointer to an UErrorCode to receive any errors 496 * @return The total buffer size needed; if greater than resultLength, the output was truncated. 497 * @see unum_formatInt64 498 * @see unum_formatDouble 499 * @see unum_parse 500 * @see unum_parseInt64 501 * @see unum_parseDouble 502 * @see UFieldPosition 503 * @stable ICU 2.0 504 */ 505 U_STABLE int32_t U_EXPORT2 506 unum_format( const UNumberFormat* fmt, 507 int32_t number, 508 UChar* result, 509 int32_t resultLength, 510 UFieldPosition *pos, 511 UErrorCode* status); 512 513 /** 514 * Format an int64 using a UNumberFormat. 515 * The int64 will be formatted according to the UNumberFormat's locale. 516 * @param fmt The formatter to use. 517 * @param number The number to format. 518 * @param result A pointer to a buffer to receive the NULL-terminated formatted number. If 519 * the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) 520 * then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number 521 * doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. 522 * @param resultLength The maximum size of result. 523 * @param pos A pointer to a UFieldPosition. On input, position->field 524 * is read. On output, position->beginIndex and position->endIndex indicate 525 * the beginning and ending indices of field number position->field, if such 526 * a field exists. This parameter may be NULL, in which case no field 527 * @param status A pointer to an UErrorCode to receive any errors 528 * @return The total buffer size needed; if greater than resultLength, the output was truncated. 529 * @see unum_format 530 * @see unum_formatDouble 531 * @see unum_parse 532 * @see unum_parseInt64 533 * @see unum_parseDouble 534 * @see UFieldPosition 535 * @stable ICU 2.0 536 */ 537 U_STABLE int32_t U_EXPORT2 538 unum_formatInt64(const UNumberFormat *fmt, 539 int64_t number, 540 UChar* result, 541 int32_t resultLength, 542 UFieldPosition *pos, 543 UErrorCode* status); 544 545 /** 546 * Format a double using a UNumberFormat. 547 * The double will be formatted according to the UNumberFormat's locale. 548 * @param fmt The formatter to use. 549 * @param number The number to format. 550 * @param result A pointer to a buffer to receive the NULL-terminated formatted number. If 551 * the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) 552 * then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number 553 * doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. 554 * @param resultLength The maximum size of result. 555 * @param pos A pointer to a UFieldPosition. On input, position->field 556 * is read. On output, position->beginIndex and position->endIndex indicate 557 * the beginning and ending indices of field number position->field, if such 558 * a field exists. This parameter may be NULL, in which case no field 559 * @param status A pointer to an UErrorCode to receive any errors 560 * @return The total buffer size needed; if greater than resultLength, the output was truncated. 561 * @see unum_format 562 * @see unum_formatInt64 563 * @see unum_parse 564 * @see unum_parseInt64 565 * @see unum_parseDouble 566 * @see UFieldPosition 567 * @stable ICU 2.0 568 */ 569 U_STABLE int32_t U_EXPORT2 570 unum_formatDouble( const UNumberFormat* fmt, 571 double number, 572 UChar* result, 573 int32_t resultLength, 574 UFieldPosition *pos, /* 0 if ignore */ 575 UErrorCode* status); 576 577 /** 578 * Format a double using a UNumberFormat according to the UNumberFormat's locale, 579 * and initialize a UFieldPositionIterator that enumerates the subcomponents of 580 * the resulting string. 581 * 582 * @param format 583 * The formatter to use. 584 * @param number 585 * The number to format. 586 * @param result 587 * A pointer to a buffer to receive the NULL-terminated formatted 588 * number. If the formatted number fits into dest but cannot be 589 * NULL-terminated (length == resultLength) then the error code is set 590 * to U_STRING_NOT_TERMINATED_WARNING. If the formatted number doesn't 591 * fit into result then the error code is set to 592 * U_BUFFER_OVERFLOW_ERROR. 593 * @param resultLength 594 * The maximum size of result. 595 * @param fpositer 596 * A pointer to a UFieldPositionIterator created by {@link #ufieldpositer_open} 597 * (may be NULL if field position information is not needed, but in this 598 * case it's preferable to use {@link #unum_formatDouble}). Iteration 599 * information already present in the UFieldPositionIterator is deleted, 600 * and the iterator is reset to apply to the fields in the formatted 601 * string created by this function call. The field values and indexes 602 * returned by {@link #ufieldpositer_next} represent fields denoted by 603 * the UNumberFormatFields enum. Fields are not returned in a guaranteed 604 * order. Fields cannot overlap, but they may nest. For example, 1234 605 * could format as "1,234" which might consist of a grouping separator 606 * field for ',' and an integer field encompassing the entire string. 607 * @param status 608 * A pointer to an UErrorCode to receive any errors 609 * @return 610 * The total buffer size needed; if greater than resultLength, the 611 * output was truncated. 612 * @see unum_formatDouble 613 * @see unum_parse 614 * @see unum_parseDouble 615 * @see UFieldPositionIterator 616 * @see UNumberFormatFields 617 * @stable ICU 59 618 */ 619 U_STABLE int32_t U_EXPORT2 620 unum_formatDoubleForFields(const UNumberFormat* format, 621 double number, 622 UChar* result, 623 int32_t resultLength, 624 UFieldPositionIterator* fpositer, 625 UErrorCode* status); 626 627 628 /** 629 * Format a decimal number using a UNumberFormat. 630 * The number will be formatted according to the UNumberFormat's locale. 631 * The syntax of the input number is a "numeric string" 632 * as defined in the Decimal Arithmetic Specification, available at 633 * http://speleotrove.com/decimal 634 * @param fmt The formatter to use. 635 * @param number The number to format. 636 * @param length The length of the input number, or -1 if the input is nul-terminated. 637 * @param result A pointer to a buffer to receive the NULL-terminated formatted number. If 638 * the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) 639 * then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number 640 * doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. 641 * @param resultLength The maximum size of result. 642 * @param pos A pointer to a UFieldPosition. On input, position->field 643 * is read. On output, position->beginIndex and position->endIndex indicate 644 * the beginning and ending indices of field number position->field, if such 645 * a field exists. This parameter may be NULL, in which case it is ignored. 646 * @param status A pointer to an UErrorCode to receive any errors 647 * @return The total buffer size needed; if greater than resultLength, the output was truncated. 648 * @see unum_format 649 * @see unum_formatInt64 650 * @see unum_parse 651 * @see unum_parseInt64 652 * @see unum_parseDouble 653 * @see UFieldPosition 654 * @stable ICU 4.4 655 */ 656 U_STABLE int32_t U_EXPORT2 657 unum_formatDecimal( const UNumberFormat* fmt, 658 const char * number, 659 int32_t length, 660 UChar* result, 661 int32_t resultLength, 662 UFieldPosition *pos, /* 0 if ignore */ 663 UErrorCode* status); 664 665 /** 666 * Format a double currency amount using a UNumberFormat. 667 * The double will be formatted according to the UNumberFormat's locale. 668 * @param fmt the formatter to use 669 * @param number the number to format 670 * @param currency the 3-letter null-terminated ISO 4217 currency code 671 * @param result A pointer to a buffer to receive the NULL-terminated formatted number. If 672 * the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) 673 * then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number 674 * doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. 675 * @param resultLength the maximum number of UChars to write to result 676 * @param pos a pointer to a UFieldPosition. On input, 677 * position->field is read. On output, position->beginIndex and 678 * position->endIndex indicate the beginning and ending indices of 679 * field number position->field, if such a field exists. This 680 * parameter may be NULL, in which case it is ignored. 681 * @param status a pointer to an input-output UErrorCode 682 * @return the total buffer size needed; if greater than resultLength, 683 * the output was truncated. 684 * @see unum_formatDouble 685 * @see unum_parseDoubleCurrency 686 * @see UFieldPosition 687 * @stable ICU 3.0 688 */ 689 U_STABLE int32_t U_EXPORT2 690 unum_formatDoubleCurrency(const UNumberFormat* fmt, 691 double number, 692 UChar* currency, 693 UChar* result, 694 int32_t resultLength, 695 UFieldPosition* pos, 696 UErrorCode* status); 697 698 /** 699 * Format a UFormattable into a string. 700 * @param fmt the formatter to use 701 * @param number the number to format, as a UFormattable 702 * @param result A pointer to a buffer to receive the NULL-terminated formatted number. If 703 * the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) 704 * then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number 705 * doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. 706 * @param resultLength the maximum number of UChars to write to result 707 * @param pos a pointer to a UFieldPosition. On input, 708 * position->field is read. On output, position->beginIndex and 709 * position->endIndex indicate the beginning and ending indices of 710 * field number position->field, if such a field exists. This 711 * parameter may be NULL, in which case it is ignored. 712 * @param status a pointer to an input-output UErrorCode 713 * @return the total buffer size needed; if greater than resultLength, 714 * the output was truncated. Will return 0 on error. 715 * @see unum_parseToUFormattable 716 * @stable ICU 52 717 */ 718 U_STABLE int32_t U_EXPORT2 719 unum_formatUFormattable(const UNumberFormat* fmt, 720 const UFormattable *number, 721 UChar *result, 722 int32_t resultLength, 723 UFieldPosition *pos, 724 UErrorCode *status); 725 726 /** 727 * Parse a string into an integer using a UNumberFormat. 728 * The string will be parsed according to the UNumberFormat's locale. 729 * Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT 730 * and UNUM_DECIMAL_COMPACT_LONG. 731 * @param fmt The formatter to use. 732 * @param text The text to parse. 733 * @param textLength The length of text, or -1 if null-terminated. 734 * @param parsePos If not NULL, on input a pointer to an integer specifying the offset at which 735 * to begin parsing. If not NULL, on output the offset at which parsing ended. 736 * @param status A pointer to an UErrorCode to receive any errors 737 * @return The value of the parsed integer 738 * @see unum_parseInt64 739 * @see unum_parseDouble 740 * @see unum_format 741 * @see unum_formatInt64 742 * @see unum_formatDouble 743 * @stable ICU 2.0 744 */ 745 U_STABLE int32_t U_EXPORT2 746 unum_parse( const UNumberFormat* fmt, 747 const UChar* text, 748 int32_t textLength, 749 int32_t *parsePos /* 0 = start */, 750 UErrorCode *status); 751 752 /** 753 * Parse a string into an int64 using a UNumberFormat. 754 * The string will be parsed according to the UNumberFormat's locale. 755 * Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT 756 * and UNUM_DECIMAL_COMPACT_LONG. 757 * @param fmt The formatter to use. 758 * @param text The text to parse. 759 * @param textLength The length of text, or -1 if null-terminated. 760 * @param parsePos If not NULL, on input a pointer to an integer specifying the offset at which 761 * to begin parsing. If not NULL, on output the offset at which parsing ended. 762 * @param status A pointer to an UErrorCode to receive any errors 763 * @return The value of the parsed integer 764 * @see unum_parse 765 * @see unum_parseDouble 766 * @see unum_format 767 * @see unum_formatInt64 768 * @see unum_formatDouble 769 * @stable ICU 2.8 770 */ 771 U_STABLE int64_t U_EXPORT2 772 unum_parseInt64(const UNumberFormat* fmt, 773 const UChar* text, 774 int32_t textLength, 775 int32_t *parsePos /* 0 = start */, 776 UErrorCode *status); 777 778 /** 779 * Parse a string into a double using a UNumberFormat. 780 * The string will be parsed according to the UNumberFormat's locale. 781 * Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT 782 * and UNUM_DECIMAL_COMPACT_LONG. 783 * @param fmt The formatter to use. 784 * @param text The text to parse. 785 * @param textLength The length of text, or -1 if null-terminated. 786 * @param parsePos If not NULL, on input a pointer to an integer specifying the offset at which 787 * to begin parsing. If not NULL, on output the offset at which parsing ended. 788 * @param status A pointer to an UErrorCode to receive any errors 789 * @return The value of the parsed double 790 * @see unum_parse 791 * @see unum_parseInt64 792 * @see unum_format 793 * @see unum_formatInt64 794 * @see unum_formatDouble 795 * @stable ICU 2.0 796 */ 797 U_STABLE double U_EXPORT2 798 unum_parseDouble( const UNumberFormat* fmt, 799 const UChar* text, 800 int32_t textLength, 801 int32_t *parsePos /* 0 = start */, 802 UErrorCode *status); 803 804 805 /** 806 * Parse a number from a string into an unformatted numeric string using a UNumberFormat. 807 * The input string will be parsed according to the UNumberFormat's locale. 808 * The syntax of the output is a "numeric string" 809 * as defined in the Decimal Arithmetic Specification, available at 810 * http://speleotrove.com/decimal 811 * Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT 812 * and UNUM_DECIMAL_COMPACT_LONG. 813 * @param fmt The formatter to use. 814 * @param text The text to parse. 815 * @param textLength The length of text, or -1 if null-terminated. 816 * @param parsePos If not NULL, on input a pointer to an integer specifying the offset at which 817 * to begin parsing. If not NULL, on output the offset at which parsing ended. 818 * @param outBuf A (char *) buffer to receive the parsed number as a string. The output string 819 * will be nul-terminated if there is sufficient space. 820 * @param outBufLength The size of the output buffer. May be zero, in which case 821 * the outBuf pointer may be NULL, and the function will return the 822 * size of the output string. 823 * @param status A pointer to an UErrorCode to receive any errors 824 * @return the length of the output string, not including any terminating nul. 825 * @see unum_parse 826 * @see unum_parseInt64 827 * @see unum_format 828 * @see unum_formatInt64 829 * @see unum_formatDouble 830 * @stable ICU 4.4 831 */ 832 U_STABLE int32_t U_EXPORT2 833 unum_parseDecimal(const UNumberFormat* fmt, 834 const UChar* text, 835 int32_t textLength, 836 int32_t *parsePos /* 0 = start */, 837 char *outBuf, 838 int32_t outBufLength, 839 UErrorCode *status); 840 841 /** 842 * Parse a string into a double and a currency using a UNumberFormat. 843 * The string will be parsed according to the UNumberFormat's locale. 844 * @param fmt the formatter to use 845 * @param text the text to parse 846 * @param textLength the length of text, or -1 if null-terminated 847 * @param parsePos a pointer to an offset index into text at which to 848 * begin parsing. On output, *parsePos will point after the last 849 * parsed character. This parameter may be NULL, in which case parsing 850 * begins at offset 0. 851 * @param currency a pointer to the buffer to receive the parsed null- 852 * terminated currency. This buffer must have a capacity of at least 853 * 4 UChars. 854 * @param status a pointer to an input-output UErrorCode 855 * @return the parsed double 856 * @see unum_parseDouble 857 * @see unum_formatDoubleCurrency 858 * @stable ICU 3.0 859 */ 860 U_STABLE double U_EXPORT2 861 unum_parseDoubleCurrency(const UNumberFormat* fmt, 862 const UChar* text, 863 int32_t textLength, 864 int32_t* parsePos, /* 0 = start */ 865 UChar* currency, 866 UErrorCode* status); 867 868 /** 869 * Parse a UChar string into a UFormattable. 870 * Example code: 871 * \snippet test/cintltst/cnumtst.c unum_parseToUFormattable 872 * Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT 873 * and UNUM_DECIMAL_COMPACT_LONG. 874 * @param fmt the formatter to use 875 * @param result the UFormattable to hold the result. If NULL, a new UFormattable will be allocated (which the caller must close with ufmt_close). 876 * @param text the text to parse 877 * @param textLength the length of text, or -1 if null-terminated 878 * @param parsePos a pointer to an offset index into text at which to 879 * begin parsing. On output, *parsePos will point after the last 880 * parsed character. This parameter may be NULL in which case parsing 881 * begins at offset 0. 882 * @param status a pointer to an input-output UErrorCode 883 * @return the UFormattable. Will be ==result unless NULL was passed in for result, in which case it will be the newly opened UFormattable. 884 * @see ufmt_getType 885 * @see ufmt_close 886 * @stable ICU 52 887 */ 888 U_STABLE UFormattable* U_EXPORT2 889 unum_parseToUFormattable(const UNumberFormat* fmt, 890 UFormattable *result, 891 const UChar* text, 892 int32_t textLength, 893 int32_t* parsePos, /* 0 = start */ 894 UErrorCode* status); 895 896 /** 897 * Set the pattern used by a UNumberFormat. This can only be used 898 * on a DecimalFormat, other formats return U_UNSUPPORTED_ERROR 899 * in the status. 900 * @param format The formatter to set. 901 * @param localized TRUE if the pattern is localized, FALSE otherwise. 902 * @param pattern The new pattern 903 * @param patternLength The length of pattern, or -1 if null-terminated. 904 * @param parseError A pointer to UParseError to receive information 905 * about errors occurred during parsing, or NULL if no parse error 906 * information is desired. 907 * @param status A pointer to an input-output UErrorCode. 908 * @see unum_toPattern 909 * @see DecimalFormat 910 * @stable ICU 2.0 911 */ 912 U_STABLE void U_EXPORT2 913 unum_applyPattern( UNumberFormat *format, 914 UBool localized, 915 const UChar *pattern, 916 int32_t patternLength, 917 UParseError *parseError, 918 UErrorCode *status 919 ); 920 921 /** 922 * Get a locale for which decimal formatting patterns are available. 923 * A UNumberFormat in a locale returned by this function will perform the correct 924 * formatting and parsing for the locale. The results of this call are not 925 * valid for rule-based number formats. 926 * @param localeIndex The index of the desired locale. 927 * @return A locale for which number formatting patterns are available, or 0 if none. 928 * @see unum_countAvailable 929 * @stable ICU 2.0 930 */ 931 U_STABLE const char* U_EXPORT2 932 unum_getAvailable(int32_t localeIndex); 933 934 /** 935 * Determine how many locales have decimal formatting patterns available. The 936 * results of this call are not valid for rule-based number formats. 937 * This function is useful for determining the loop ending condition for 938 * calls to {@link #unum_getAvailable }. 939 * @return The number of locales for which decimal formatting patterns are available. 940 * @see unum_getAvailable 941 * @stable ICU 2.0 942 */ 943 U_STABLE int32_t U_EXPORT2 944 unum_countAvailable(void); 945 946 #if UCONFIG_HAVE_PARSEALLINPUT 947 /* The UNumberFormatAttributeValue type cannot be #ifndef U_HIDE_INTERNAL_API, needed for .h variable declaration */ 948 /** 949 * @internal 950 */ 951 typedef enum UNumberFormatAttributeValue { 952 #ifndef U_HIDE_INTERNAL_API 953 /** @internal */ 954 UNUM_NO = 0, 955 /** @internal */ 956 UNUM_YES = 1, 957 /** @internal */ 958 UNUM_MAYBE = 2 959 #else 960 /** @internal */ 961 UNUM_FORMAT_ATTRIBUTE_VALUE_HIDDEN 962 #endif /* U_HIDE_INTERNAL_API */ 963 } UNumberFormatAttributeValue; 964 #endif 965 966 /** The possible UNumberFormat numeric attributes @stable ICU 2.0 */ 967 typedef enum UNumberFormatAttribute { 968 /** Parse integers only */ 969 UNUM_PARSE_INT_ONLY, 970 /** Use grouping separator */ 971 UNUM_GROUPING_USED, 972 /** Always show decimal point */ 973 UNUM_DECIMAL_ALWAYS_SHOWN, 974 /** Maximum integer digits */ 975 UNUM_MAX_INTEGER_DIGITS, 976 /** Minimum integer digits */ 977 UNUM_MIN_INTEGER_DIGITS, 978 /** Integer digits */ 979 UNUM_INTEGER_DIGITS, 980 /** Maximum fraction digits */ 981 UNUM_MAX_FRACTION_DIGITS, 982 /** Minimum fraction digits */ 983 UNUM_MIN_FRACTION_DIGITS, 984 /** Fraction digits */ 985 UNUM_FRACTION_DIGITS, 986 /** Multiplier */ 987 UNUM_MULTIPLIER, 988 /** Grouping size */ 989 UNUM_GROUPING_SIZE, 990 /** Rounding Mode */ 991 UNUM_ROUNDING_MODE, 992 /** Rounding increment */ 993 UNUM_ROUNDING_INCREMENT, 994 /** The width to which the output of <code>format()</code> is padded. */ 995 UNUM_FORMAT_WIDTH, 996 /** The position at which padding will take place. */ 997 UNUM_PADDING_POSITION, 998 /** Secondary grouping size */ 999 UNUM_SECONDARY_GROUPING_SIZE, 1000 /** Use significant digits 1001 * @stable ICU 3.0 */ 1002 UNUM_SIGNIFICANT_DIGITS_USED, 1003 /** Minimum significant digits 1004 * @stable ICU 3.0 */ 1005 UNUM_MIN_SIGNIFICANT_DIGITS, 1006 /** Maximum significant digits 1007 * @stable ICU 3.0 */ 1008 UNUM_MAX_SIGNIFICANT_DIGITS, 1009 /** Lenient parse mode used by rule-based formats. 1010 * @stable ICU 3.0 1011 */ 1012 UNUM_LENIENT_PARSE, 1013 #if UCONFIG_HAVE_PARSEALLINPUT 1014 /** Consume all input. (may use fastpath). Set to UNUM_YES (require fastpath), UNUM_NO (skip fastpath), or UNUM_MAYBE (heuristic). 1015 * This is an internal ICU API. Do not use. 1016 * @internal 1017 */ 1018 UNUM_PARSE_ALL_INPUT = 20, 1019 #endif 1020 /** 1021 * Scale, which adjusts the position of the 1022 * decimal point when formatting. Amounts will be multiplied by 10 ^ (scale) 1023 * before they are formatted. The default value for the scale is 0 ( no adjustment ). 1024 * 1025 * <p>Example: setting the scale to 3, 123 formats as "123,000" 1026 * <p>Example: setting the scale to -4, 123 formats as "0.0123" 1027 * 1028 * This setting is analogous to getMultiplierScale() and setMultiplierScale() in decimfmt.h. 1029 * 1030 * @stable ICU 51 */ 1031 UNUM_SCALE = 21, 1032 1033 #ifndef U_HIDE_DRAFT_API 1034 /** 1035 * Minimum grouping digits; most commonly set to 2 to print "1000" instead of "1,000". 1036 * See DecimalFormat::getMinimumGroupingDigits(). 1037 * 1038 * For better control over grouping strategies, use UNumberFormatter. 1039 * 1040 * @draft ICU 64 1041 */ 1042 UNUM_MINIMUM_GROUPING_DIGITS = 22, 1043 #endif /* U_HIDE_DRAFT_API */ 1044 1045 /** 1046 * if this attribute is set to 0, it is set to UNUM_CURRENCY_STANDARD purpose, 1047 * otherwise it is UNUM_CURRENCY_CASH purpose 1048 * Default: 0 (UNUM_CURRENCY_STANDARD purpose) 1049 * @stable ICU 54 1050 */ 1051 UNUM_CURRENCY_USAGE = 23, 1052 1053 #ifndef U_HIDE_INTERNAL_API 1054 /** One below the first bitfield-boolean item. 1055 * All items after this one are stored in boolean form. 1056 * @internal */ 1057 UNUM_MAX_NONBOOLEAN_ATTRIBUTE = 0x0FFF, 1058 #endif /* U_HIDE_INTERNAL_API */ 1059 1060 /** If 1, specifies that if setting the "max integer digits" attribute would truncate a value, set an error status rather than silently truncating. 1061 * For example, formatting the value 1234 with 4 max int digits would succeed, but formatting 12345 would fail. There is no effect on parsing. 1062 * Default: 0 (not set) 1063 * @stable ICU 50 1064 */ 1065 UNUM_FORMAT_FAIL_IF_MORE_THAN_MAX_DIGITS = 0x1000, 1066 /** 1067 * if this attribute is set to 1, specifies that, if the pattern doesn't contain an exponent, the exponent will not be parsed. If the pattern does contain an exponent, this attribute has no effect. 1068 * Has no effect on formatting. 1069 * Default: 0 (unset) 1070 * @stable ICU 50 1071 */ 1072 UNUM_PARSE_NO_EXPONENT = 0x1001, 1073 1074 /** 1075 * if this attribute is set to 1, specifies that, if the pattern contains a 1076 * decimal mark the input is required to have one. If this attribute is set to 0, 1077 * specifies that input does not have to contain a decimal mark. 1078 * Has no effect on formatting. 1079 * Default: 0 (unset) 1080 * @stable ICU 54 1081 */ 1082 UNUM_PARSE_DECIMAL_MARK_REQUIRED = 0x1002, 1083 1084 #ifndef U_HIDE_DRAFT_API 1085 1086 /** 1087 * Parsing: if set to 1, parsing is sensitive to case (lowercase/uppercase). 1088 * 1089 * @draft ICU 64 1090 */ 1091 UNUM_PARSE_CASE_SENSITIVE = 0x1003, 1092 1093 /** 1094 * Formatting: if set to 1, whether to show the plus sign on non-negative numbers. 1095 * 1096 * For better control over sign display, use UNumberFormatter. 1097 * 1098 * @draft ICU 64 1099 */ 1100 UNUM_SIGN_ALWAYS_SHOWN = 0x1004, 1101 1102 #endif /* U_HIDE_DRAFT_API */ 1103 1104 #ifndef U_HIDE_INTERNAL_API 1105 /** Limit of boolean attributes. (value should 1106 * not depend on U_HIDE conditionals) 1107 * @internal */ 1108 UNUM_LIMIT_BOOLEAN_ATTRIBUTE = 0x1005, 1109 #endif /* U_HIDE_INTERNAL_API */ 1110 1111 } UNumberFormatAttribute; 1112 1113 /** 1114 * Get a numeric attribute associated with a UNumberFormat. 1115 * An example of a numeric attribute is the number of integer digits a formatter will produce. 1116 * @param fmt The formatter to query. 1117 * @param attr The attribute to query; one of UNUM_PARSE_INT_ONLY, UNUM_GROUPING_USED, 1118 * UNUM_DECIMAL_ALWAYS_SHOWN, UNUM_MAX_INTEGER_DIGITS, UNUM_MIN_INTEGER_DIGITS, UNUM_INTEGER_DIGITS, 1119 * UNUM_MAX_FRACTION_DIGITS, UNUM_MIN_FRACTION_DIGITS, UNUM_FRACTION_DIGITS, UNUM_MULTIPLIER, 1120 * UNUM_GROUPING_SIZE, UNUM_ROUNDING_MODE, UNUM_FORMAT_WIDTH, UNUM_PADDING_POSITION, UNUM_SECONDARY_GROUPING_SIZE, 1121 * UNUM_SCALE, UNUM_MINIMUM_GROUPING_DIGITS. 1122 * @return The value of attr. 1123 * @see unum_setAttribute 1124 * @see unum_getDoubleAttribute 1125 * @see unum_setDoubleAttribute 1126 * @see unum_getTextAttribute 1127 * @see unum_setTextAttribute 1128 * @stable ICU 2.0 1129 */ 1130 U_STABLE int32_t U_EXPORT2 1131 unum_getAttribute(const UNumberFormat* fmt, 1132 UNumberFormatAttribute attr); 1133 1134 /** 1135 * Set a numeric attribute associated with a UNumberFormat. 1136 * An example of a numeric attribute is the number of integer digits a formatter will produce. If the 1137 * formatter does not understand the attribute, the call is ignored. Rule-based formatters only understand 1138 * the lenient-parse attribute. 1139 * @param fmt The formatter to set. 1140 * @param attr The attribute to set; one of UNUM_PARSE_INT_ONLY, UNUM_GROUPING_USED, 1141 * UNUM_DECIMAL_ALWAYS_SHOWN, UNUM_MAX_INTEGER_DIGITS, UNUM_MIN_INTEGER_DIGITS, UNUM_INTEGER_DIGITS, 1142 * UNUM_MAX_FRACTION_DIGITS, UNUM_MIN_FRACTION_DIGITS, UNUM_FRACTION_DIGITS, UNUM_MULTIPLIER, 1143 * UNUM_GROUPING_SIZE, UNUM_ROUNDING_MODE, UNUM_FORMAT_WIDTH, UNUM_PADDING_POSITION, UNUM_SECONDARY_GROUPING_SIZE, 1144 * UNUM_LENIENT_PARSE, UNUM_SCALE, UNUM_MINIMUM_GROUPING_DIGITS. 1145 * @param newValue The new value of attr. 1146 * @see unum_getAttribute 1147 * @see unum_getDoubleAttribute 1148 * @see unum_setDoubleAttribute 1149 * @see unum_getTextAttribute 1150 * @see unum_setTextAttribute 1151 * @stable ICU 2.0 1152 */ 1153 U_STABLE void U_EXPORT2 1154 unum_setAttribute( UNumberFormat* fmt, 1155 UNumberFormatAttribute attr, 1156 int32_t newValue); 1157 1158 1159 /** 1160 * Get a numeric attribute associated with a UNumberFormat. 1161 * An example of a numeric attribute is the number of integer digits a formatter will produce. 1162 * If the formatter does not understand the attribute, -1 is returned. 1163 * @param fmt The formatter to query. 1164 * @param attr The attribute to query; e.g. UNUM_ROUNDING_INCREMENT. 1165 * @return The value of attr. 1166 * @see unum_getAttribute 1167 * @see unum_setAttribute 1168 * @see unum_setDoubleAttribute 1169 * @see unum_getTextAttribute 1170 * @see unum_setTextAttribute 1171 * @stable ICU 2.0 1172 */ 1173 U_STABLE double U_EXPORT2 1174 unum_getDoubleAttribute(const UNumberFormat* fmt, 1175 UNumberFormatAttribute attr); 1176 1177 /** 1178 * Set a numeric attribute associated with a UNumberFormat. 1179 * An example of a numeric attribute is the number of integer digits a formatter will produce. 1180 * If the formatter does not understand the attribute, this call is ignored. 1181 * @param fmt The formatter to set. 1182 * @param attr The attribute to set; e.g. UNUM_ROUNDING_INCREMENT. 1183 * @param newValue The new value of attr. 1184 * @see unum_getAttribute 1185 * @see unum_setAttribute 1186 * @see unum_getDoubleAttribute 1187 * @see unum_getTextAttribute 1188 * @see unum_setTextAttribute 1189 * @stable ICU 2.0 1190 */ 1191 U_STABLE void U_EXPORT2 1192 unum_setDoubleAttribute( UNumberFormat* fmt, 1193 UNumberFormatAttribute attr, 1194 double newValue); 1195 1196 /** The possible UNumberFormat text attributes @stable ICU 2.0*/ 1197 typedef enum UNumberFormatTextAttribute { 1198 /** Positive prefix */ 1199 UNUM_POSITIVE_PREFIX, 1200 /** Positive suffix */ 1201 UNUM_POSITIVE_SUFFIX, 1202 /** Negative prefix */ 1203 UNUM_NEGATIVE_PREFIX, 1204 /** Negative suffix */ 1205 UNUM_NEGATIVE_SUFFIX, 1206 /** The character used to pad to the format width. */ 1207 UNUM_PADDING_CHARACTER, 1208 /** The ISO currency code */ 1209 UNUM_CURRENCY_CODE, 1210 /** 1211 * The default rule set, such as "%spellout-numbering-year:", "%spellout-cardinal:", 1212 * "%spellout-ordinal-masculine-plural:", "%spellout-ordinal-feminine:", or 1213 * "%spellout-ordinal-neuter:". The available public rulesets can be listed using 1214 * unum_getTextAttribute with UNUM_PUBLIC_RULESETS. This is only available with 1215 * rule-based formatters. 1216 * @stable ICU 3.0 1217 */ 1218 UNUM_DEFAULT_RULESET, 1219 /** 1220 * The public rule sets. This is only available with rule-based formatters. 1221 * This is a read-only attribute. The public rulesets are returned as a 1222 * single string, with each ruleset name delimited by ';' (semicolon). See the 1223 * CLDR LDML spec for more information about RBNF rulesets: 1224 * http://www.unicode.org/reports/tr35/tr35-numbers.html#Rule-Based_Number_Formatting 1225 * @stable ICU 3.0 1226 */ 1227 UNUM_PUBLIC_RULESETS 1228 } UNumberFormatTextAttribute; 1229 1230 /** 1231 * Get a text attribute associated with a UNumberFormat. 1232 * An example of a text attribute is the suffix for positive numbers. If the formatter 1233 * does not understand the attribute, U_UNSUPPORTED_ERROR is returned as the status. 1234 * Rule-based formatters only understand UNUM_DEFAULT_RULESET and UNUM_PUBLIC_RULESETS. 1235 * @param fmt The formatter to query. 1236 * @param tag The attribute to query; one of UNUM_POSITIVE_PREFIX, UNUM_POSITIVE_SUFFIX, 1237 * UNUM_NEGATIVE_PREFIX, UNUM_NEGATIVE_SUFFIX, UNUM_PADDING_CHARACTER, UNUM_CURRENCY_CODE, 1238 * UNUM_DEFAULT_RULESET, or UNUM_PUBLIC_RULESETS. 1239 * @param result A pointer to a buffer to receive the attribute. 1240 * @param resultLength The maximum size of result. 1241 * @param status A pointer to an UErrorCode to receive any errors 1242 * @return The total buffer size needed; if greater than resultLength, the output was truncated. 1243 * @see unum_setTextAttribute 1244 * @see unum_getAttribute 1245 * @see unum_setAttribute 1246 * @stable ICU 2.0 1247 */ 1248 U_STABLE int32_t U_EXPORT2 1249 unum_getTextAttribute( const UNumberFormat* fmt, 1250 UNumberFormatTextAttribute tag, 1251 UChar* result, 1252 int32_t resultLength, 1253 UErrorCode* status); 1254 1255 /** 1256 * Set a text attribute associated with a UNumberFormat. 1257 * An example of a text attribute is the suffix for positive numbers. Rule-based formatters 1258 * only understand UNUM_DEFAULT_RULESET. 1259 * @param fmt The formatter to set. 1260 * @param tag The attribute to set; one of UNUM_POSITIVE_PREFIX, UNUM_POSITIVE_SUFFIX, 1261 * UNUM_NEGATIVE_PREFIX, UNUM_NEGATIVE_SUFFIX, UNUM_PADDING_CHARACTER, UNUM_CURRENCY_CODE, 1262 * or UNUM_DEFAULT_RULESET. 1263 * @param newValue The new value of attr. 1264 * @param newValueLength The length of newValue, or -1 if null-terminated. 1265 * @param status A pointer to an UErrorCode to receive any errors 1266 * @see unum_getTextAttribute 1267 * @see unum_getAttribute 1268 * @see unum_setAttribute 1269 * @stable ICU 2.0 1270 */ 1271 U_STABLE void U_EXPORT2 1272 unum_setTextAttribute( UNumberFormat* fmt, 1273 UNumberFormatTextAttribute tag, 1274 const UChar* newValue, 1275 int32_t newValueLength, 1276 UErrorCode *status); 1277 1278 /** 1279 * Extract the pattern from a UNumberFormat. The pattern will follow 1280 * the DecimalFormat pattern syntax. 1281 * @param fmt The formatter to query. 1282 * @param isPatternLocalized TRUE if the pattern should be localized, 1283 * FALSE otherwise. This is ignored if the formatter is a rule-based 1284 * formatter. 1285 * @param result A pointer to a buffer to receive the pattern. 1286 * @param resultLength The maximum size of result. 1287 * @param status A pointer to an input-output UErrorCode. 1288 * @return The total buffer size needed; if greater than resultLength, 1289 * the output was truncated. 1290 * @see unum_applyPattern 1291 * @see DecimalFormat 1292 * @stable ICU 2.0 1293 */ 1294 U_STABLE int32_t U_EXPORT2 1295 unum_toPattern( const UNumberFormat* fmt, 1296 UBool isPatternLocalized, 1297 UChar* result, 1298 int32_t resultLength, 1299 UErrorCode* status); 1300 1301 1302 /** 1303 * Constants for specifying a number format symbol. 1304 * @stable ICU 2.0 1305 */ 1306 typedef enum UNumberFormatSymbol { 1307 /** The decimal separator */ 1308 UNUM_DECIMAL_SEPARATOR_SYMBOL = 0, 1309 /** The grouping separator */ 1310 UNUM_GROUPING_SEPARATOR_SYMBOL = 1, 1311 /** The pattern separator */ 1312 UNUM_PATTERN_SEPARATOR_SYMBOL = 2, 1313 /** The percent sign */ 1314 UNUM_PERCENT_SYMBOL = 3, 1315 /** Zero*/ 1316 UNUM_ZERO_DIGIT_SYMBOL = 4, 1317 /** Character representing a digit in the pattern */ 1318 UNUM_DIGIT_SYMBOL = 5, 1319 /** The minus sign */ 1320 UNUM_MINUS_SIGN_SYMBOL = 6, 1321 /** The plus sign */ 1322 UNUM_PLUS_SIGN_SYMBOL = 7, 1323 /** The currency symbol */ 1324 UNUM_CURRENCY_SYMBOL = 8, 1325 /** The international currency symbol */ 1326 UNUM_INTL_CURRENCY_SYMBOL = 9, 1327 /** The monetary separator */ 1328 UNUM_MONETARY_SEPARATOR_SYMBOL = 10, 1329 /** The exponential symbol */ 1330 UNUM_EXPONENTIAL_SYMBOL = 11, 1331 /** Per mill symbol */ 1332 UNUM_PERMILL_SYMBOL = 12, 1333 /** Escape padding character */ 1334 UNUM_PAD_ESCAPE_SYMBOL = 13, 1335 /** Infinity symbol */ 1336 UNUM_INFINITY_SYMBOL = 14, 1337 /** Nan symbol */ 1338 UNUM_NAN_SYMBOL = 15, 1339 /** Significant digit symbol 1340 * @stable ICU 3.0 */ 1341 UNUM_SIGNIFICANT_DIGIT_SYMBOL = 16, 1342 /** The monetary grouping separator 1343 * @stable ICU 3.6 1344 */ 1345 UNUM_MONETARY_GROUPING_SEPARATOR_SYMBOL = 17, 1346 /** One 1347 * @stable ICU 4.6 1348 */ 1349 UNUM_ONE_DIGIT_SYMBOL = 18, 1350 /** Two 1351 * @stable ICU 4.6 1352 */ 1353 UNUM_TWO_DIGIT_SYMBOL = 19, 1354 /** Three 1355 * @stable ICU 4.6 1356 */ 1357 UNUM_THREE_DIGIT_SYMBOL = 20, 1358 /** Four 1359 * @stable ICU 4.6 1360 */ 1361 UNUM_FOUR_DIGIT_SYMBOL = 21, 1362 /** Five 1363 * @stable ICU 4.6 1364 */ 1365 UNUM_FIVE_DIGIT_SYMBOL = 22, 1366 /** Six 1367 * @stable ICU 4.6 1368 */ 1369 UNUM_SIX_DIGIT_SYMBOL = 23, 1370 /** Seven 1371 * @stable ICU 4.6 1372 */ 1373 UNUM_SEVEN_DIGIT_SYMBOL = 24, 1374 /** Eight 1375 * @stable ICU 4.6 1376 */ 1377 UNUM_EIGHT_DIGIT_SYMBOL = 25, 1378 /** Nine 1379 * @stable ICU 4.6 1380 */ 1381 UNUM_NINE_DIGIT_SYMBOL = 26, 1382 1383 /** Multiplication sign 1384 * @stable ICU 54 1385 */ 1386 UNUM_EXPONENT_MULTIPLICATION_SYMBOL = 27, 1387 1388 #ifndef U_HIDE_DEPRECATED_API 1389 /** 1390 * One more than the highest normal UNumberFormatSymbol value. 1391 * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420. 1392 */ 1393 UNUM_FORMAT_SYMBOL_COUNT = 28 1394 #endif /* U_HIDE_DEPRECATED_API */ 1395 } UNumberFormatSymbol; 1396 1397 /** 1398 * Get a symbol associated with a UNumberFormat. 1399 * A UNumberFormat uses symbols to represent the special locale-dependent 1400 * characters in a number, for example the percent sign. This API is not 1401 * supported for rule-based formatters. 1402 * @param fmt The formatter to query. 1403 * @param symbol The UNumberFormatSymbol constant for the symbol to get 1404 * @param buffer The string buffer that will receive the symbol string; 1405 * if it is NULL, then only the length of the symbol is returned 1406 * @param size The size of the string buffer 1407 * @param status A pointer to an UErrorCode to receive any errors 1408 * @return The length of the symbol; the buffer is not modified if 1409 * <code>length>=size</code> 1410 * @see unum_setSymbol 1411 * @stable ICU 2.0 1412 */ 1413 U_STABLE int32_t U_EXPORT2 1414 unum_getSymbol(const UNumberFormat *fmt, 1415 UNumberFormatSymbol symbol, 1416 UChar *buffer, 1417 int32_t size, 1418 UErrorCode *status); 1419 1420 /** 1421 * Set a symbol associated with a UNumberFormat. 1422 * A UNumberFormat uses symbols to represent the special locale-dependent 1423 * characters in a number, for example the percent sign. This API is not 1424 * supported for rule-based formatters. 1425 * @param fmt The formatter to set. 1426 * @param symbol The UNumberFormatSymbol constant for the symbol to set 1427 * @param value The string to set the symbol to 1428 * @param length The length of the string, or -1 for a zero-terminated string 1429 * @param status A pointer to an UErrorCode to receive any errors. 1430 * @see unum_getSymbol 1431 * @stable ICU 2.0 1432 */ 1433 U_STABLE void U_EXPORT2 1434 unum_setSymbol(UNumberFormat *fmt, 1435 UNumberFormatSymbol symbol, 1436 const UChar *value, 1437 int32_t length, 1438 UErrorCode *status); 1439 1440 1441 /** 1442 * Get the locale for this number format object. 1443 * You can choose between valid and actual locale. 1444 * @param fmt The formatter to get the locale from 1445 * @param type type of the locale we're looking for (valid or actual) 1446 * @param status error code for the operation 1447 * @return the locale name 1448 * @stable ICU 2.8 1449 */ 1450 U_STABLE const char* U_EXPORT2 1451 unum_getLocaleByType(const UNumberFormat *fmt, 1452 ULocDataLocaleType type, 1453 UErrorCode* status); 1454 1455 /** 1456 * Set a particular UDisplayContext value in the formatter, such as 1457 * UDISPCTX_CAPITALIZATION_FOR_STANDALONE. 1458 * @param fmt The formatter for which to set a UDisplayContext value. 1459 * @param value The UDisplayContext value to set. 1460 * @param status A pointer to an UErrorCode to receive any errors 1461 * @stable ICU 53 1462 */ 1463 U_STABLE void U_EXPORT2 1464 unum_setContext(UNumberFormat* fmt, UDisplayContext value, UErrorCode* status); 1465 1466 /** 1467 * Get the formatter's UDisplayContext value for the specified UDisplayContextType, 1468 * such as UDISPCTX_TYPE_CAPITALIZATION. 1469 * @param fmt The formatter to query. 1470 * @param type The UDisplayContextType whose value to return 1471 * @param status A pointer to an UErrorCode to receive any errors 1472 * @return The UDisplayContextValue for the specified type. 1473 * @stable ICU 53 1474 */ 1475 U_STABLE UDisplayContext U_EXPORT2 1476 unum_getContext(const UNumberFormat *fmt, UDisplayContextType type, UErrorCode* status); 1477 1478 #endif /* #if !UCONFIG_NO_FORMATTING */ 1479 1480 #endif 1481