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| 1 /* | |
| 2 *******************************************************************************
* | |
| 3 * Copyright (C) 1997-2010, International Business Machines | |
| 4 * Corporation and others. All Rights Reserved. | |
| 5 *******************************************************************************
* | |
| 6 * | |
| 7 * File DATEFMT.H | |
| 8 * | |
| 9 * Modification History: | |
| 10 * | |
| 11 * Date Name Description | |
| 12 * 02/19/97 aliu Converted from java. | |
| 13 * 04/01/97 aliu Added support for centuries. | |
| 14 * 07/23/98 stephen JDK 1.2 sync | |
| 15 * 11/15/99 weiv Added support for week of year/day of week formatti
ng | |
| 16 *******************************************************************************
* | |
| 17 */ | |
| 18 | |
| 19 #ifndef DATEFMT_H | |
| 20 #define DATEFMT_H | |
| 21 | |
| 22 #include "unicode/utypes.h" | |
| 23 | |
| 24 #if !UCONFIG_NO_FORMATTING | |
| 25 | |
| 26 #include "unicode/udat.h" | |
| 27 #include "unicode/calendar.h" | |
| 28 #include "unicode/numfmt.h" | |
| 29 #include "unicode/format.h" | |
| 30 #include "unicode/locid.h" | |
| 31 | |
| 32 /** | |
| 33 * \file | |
| 34 * \brief C++ API: Abstract class for converting dates. | |
| 35 */ | |
| 36 | |
| 37 U_NAMESPACE_BEGIN | |
| 38 | |
| 39 class TimeZone; | |
| 40 class DateTimePatternGenerator; | |
| 41 | |
| 42 /** | |
| 43 * DateFormat is an abstract class for a family of classes that convert dates an
d | |
| 44 * times from their internal representations to textual form and back again in a | |
| 45 * language-independent manner. Converting from the internal representation (mil
liseconds | |
| 46 * since midnight, January 1, 1970) to text is known as "formatting," and conver
ting | |
| 47 * from text to millis is known as "parsing." We currently define only one conc
rete | |
| 48 * subclass of DateFormat: SimpleDateFormat, which can handle pretty much all no
rmal | |
| 49 * date formatting and parsing actions. | |
| 50 * <P> | |
| 51 * DateFormat helps you to format and parse dates for any locale. Your code can | |
| 52 * be completely independent of the locale conventions for months, days of the | |
| 53 * week, or even the calendar format: lunar vs. solar. | |
| 54 * <P> | |
| 55 * To format a date for the current Locale, use one of the static factory | |
| 56 * methods: | |
| 57 * <pre> | |
| 58 * \code | |
| 59 * DateFormat* dfmt = DateFormat::createDateInstance(); | |
| 60 * UDate myDate = Calendar::getNow(); | |
| 61 * UnicodeString myString; | |
| 62 * myString = dfmt->format( myDate, myString ); | |
| 63 * \endcode | |
| 64 * </pre> | |
| 65 * If you are formatting multiple numbers, it is more efficient to get the | |
| 66 * format and use it multiple times so that the system doesn't have to fetch the | |
| 67 * information about the local language and country conventions multiple times. | |
| 68 * <pre> | |
| 69 * \code | |
| 70 * DateFormat* df = DateFormat::createDateInstance(); | |
| 71 * UnicodeString myString; | |
| 72 * UDate myDateArr[] = { 0.0, 100000000.0, 2000000000.0 }; // test values | |
| 73 * for (int32_t i = 0; i < 3; ++i) { | |
| 74 * myString.remove(); | |
| 75 * cout << df->format( myDateArr[i], myString ) << endl; | |
| 76 * } | |
| 77 * \endcode | |
| 78 * </pre> | |
| 79 * To get specific fields of a date, you can use UFieldPosition to | |
| 80 * get specific fields. | |
| 81 * <pre> | |
| 82 * \code | |
| 83 * DateFormat* dfmt = DateFormat::createDateInstance(); | |
| 84 * FieldPosition pos(DateFormat::YEAR_FIELD); | |
| 85 * UnicodeString myString; | |
| 86 * myString = dfmt->format( myDate, myString ); | |
| 87 * cout << myString << endl; | |
| 88 * cout << pos.getBeginIndex() << "," << pos. getEndIndex() << endl; | |
| 89 * \endcode | |
| 90 * </pre> | |
| 91 * To format a date for a different Locale, specify it in the call to | |
| 92 * createDateInstance(). | |
| 93 * <pre> | |
| 94 * \code | |
| 95 * DateFormat* df = | |
| 96 * DateFormat::createDateInstance( DateFormat::SHORT, Locale::getFranc
e()); | |
| 97 * \endcode | |
| 98 * </pre> | |
| 99 * You can use a DateFormat to parse also. | |
| 100 * <pre> | |
| 101 * \code | |
| 102 * UErrorCode status = U_ZERO_ERROR; | |
| 103 * UDate myDate = df->parse(myString, status); | |
| 104 * \endcode | |
| 105 * </pre> | |
| 106 * Use createDateInstance() to produce the normal date format for that country. | |
| 107 * There are other static factory methods available. Use createTimeInstance() | |
| 108 * to produce the normal time format for that country. Use createDateTimeInstanc
e() | |
| 109 * to produce a DateFormat that formats both date and time. You can pass in | |
| 110 * different options to these factory methods to control the length of the | |
| 111 * result; from SHORT to MEDIUM to LONG to FULL. The exact result depends on the | |
| 112 * locale, but generally: | |
| 113 * <ul type=round> | |
| 114 * <li> SHORT is completely numeric, such as 12/13/52 or 3:30pm | |
| 115 * <li> MEDIUM is longer, such as Jan 12, 1952 | |
| 116 * <li> LONG is longer, such as January 12, 1952 or 3:30:32pm | |
| 117 * <li> FULL is pretty completely specified, such as | |
| 118 * Tuesday, April 12, 1952 AD or 3:30:42pm PST. | |
| 119 * </ul> | |
| 120 * You can also set the time zone on the format if you wish. If you want even | |
| 121 * more control over the format or parsing, (or want to give your users more | |
| 122 * control), you can try casting the DateFormat you get from the factory methods | |
| 123 * to a SimpleDateFormat. This will work for the majority of countries; just | |
| 124 * remember to chck getDynamicClassID() before carrying out the cast. | |
| 125 * <P> | |
| 126 * You can also use forms of the parse and format methods with ParsePosition and | |
| 127 * FieldPosition to allow you to | |
| 128 * <ul type=round> | |
| 129 * <li> Progressively parse through pieces of a string. | |
| 130 * <li> Align any particular field, or find out where it is for selection | |
| 131 * on the screen. | |
| 132 * </ul> | |
| 133 * | |
| 134 * <p><em>User subclasses are not supported.</em> While clients may write | |
| 135 * subclasses, such code will not necessarily work and will not be | |
| 136 * guaranteed to work stably from release to release. | |
| 137 */ | |
| 138 class U_I18N_API DateFormat : public Format { | |
| 139 public: | |
| 140 | |
| 141 /** | |
| 142 * Constants for various style patterns. These reflect the order of items in | |
| 143 * the DateTimePatterns resource. There are 4 time patterns, 4 date patterns
, | |
| 144 * the default date-time pattern, and 4 date-time patterns. Each block of 4
values | |
| 145 * in the resource occurs in the order full, long, medium, short. | |
| 146 * @stable ICU 2.4 | |
| 147 */ | |
| 148 enum EStyle | |
| 149 { | |
| 150 kNone = -1, | |
| 151 | |
| 152 kFull = 0, | |
| 153 kLong = 1, | |
| 154 kMedium = 2, | |
| 155 kShort = 3, | |
| 156 | |
| 157 kDateOffset = kShort + 1, | |
| 158 // kFull + kDateOffset = 4 | |
| 159 // kLong + kDateOffset = 5 | |
| 160 // kMedium + kDateOffset = 6 | |
| 161 // kShort + kDateOffset = 7 | |
| 162 | |
| 163 kDateTime = 8, | |
| 164 // Default DateTime | |
| 165 | |
| 166 kDateTimeOffset = kDateTime + 1, | |
| 167 // kFull + kDateTimeOffset = 9 | |
| 168 // kLong + kDateTimeOffset = 10 | |
| 169 // kMedium + kDateTimeOffset = 11 | |
| 170 // kShort + kDateTimeOffset = 12 | |
| 171 | |
| 172 // relative dates | |
| 173 kRelative = (1 << 7), | |
| 174 | |
| 175 kFullRelative = (kFull | kRelative), | |
| 176 | |
| 177 kLongRelative = kLong | kRelative, | |
| 178 | |
| 179 kMediumRelative = kMedium | kRelative, | |
| 180 | |
| 181 kShortRelative = kShort | kRelative, | |
| 182 | |
| 183 | |
| 184 kDefault = kMedium, | |
| 185 | |
| 186 | |
| 187 | |
| 188 /** | |
| 189 * These constants are provided for backwards compatibility only. | |
| 190 * Please use the C++ style constants defined above. | |
| 191 */ | |
| 192 FULL = kFull, | |
| 193 LONG = kLong, | |
| 194 MEDIUM = kMedium, | |
| 195 SHORT = kShort, | |
| 196 DEFAULT = kDefault, | |
| 197 DATE_OFFSET = kDateOffset, | |
| 198 NONE = kNone, | |
| 199 DATE_TIME = kDateTime | |
| 200 }; | |
| 201 | |
| 202 /** | |
| 203 * Destructor. | |
| 204 * @stable ICU 2.0 | |
| 205 */ | |
| 206 virtual ~DateFormat(); | |
| 207 | |
| 208 /** | |
| 209 * Equality operator. Returns true if the two formats have the same behavio
r. | |
| 210 * @stable ICU 2.0 | |
| 211 */ | |
| 212 virtual UBool operator==(const Format&) const; | |
| 213 | |
| 214 | |
| 215 using Format::format; | |
| 216 | |
| 217 /** | |
| 218 * Format an object to produce a string. This method handles Formattable | |
| 219 * objects with a UDate type. If a the Formattable object type is not a Date
, | |
| 220 * then it returns a failing UErrorCode. | |
| 221 * | |
| 222 * @param obj The object to format. Must be a Date. | |
| 223 * @param appendTo Output parameter to receive result. | |
| 224 * Result is appended to existing contents. | |
| 225 * @param pos On input: an alignment field, if desired. | |
| 226 * On output: the offsets of the alignment field. | |
| 227 * @param status Output param filled with success/failure status. | |
| 228 * @return Reference to 'appendTo' parameter. | |
| 229 * @stable ICU 2.0 | |
| 230 */ | |
| 231 virtual UnicodeString& format(const Formattable& obj, | |
| 232 UnicodeString& appendTo, | |
| 233 FieldPosition& pos, | |
| 234 UErrorCode& status) const; | |
| 235 | |
| 236 /** | |
| 237 * Format an object to produce a string. This method handles Formattable | |
| 238 * objects with a UDate type. If a the Formattable object type is not a Date
, | |
| 239 * then it returns a failing UErrorCode. | |
| 240 * | |
| 241 * @param obj The object to format. Must be a Date. | |
| 242 * @param appendTo Output parameter to receive result. | |
| 243 * Result is appended to existing contents. | |
| 244 * @param posIter On return, can be used to iterate over positions | |
| 245 * of fields generated by this format call. Field values | |
| 246 * are defined in UDateFormatField. Can be NULL. | |
| 247 * @param status Output param filled with success/failure status. | |
| 248 * @return Reference to 'appendTo' parameter. | |
| 249 * @stable ICU 4.4 | |
| 250 */ | |
| 251 virtual UnicodeString& format(const Formattable& obj, | |
| 252 UnicodeString& appendTo, | |
| 253 FieldPositionIterator* posIter, | |
| 254 UErrorCode& status) const; | |
| 255 /** | |
| 256 * Formats a date into a date/time string. This is an abstract method which | |
| 257 * concrete subclasses must implement. | |
| 258 * <P> | |
| 259 * On input, the FieldPosition parameter may have its "field" member filled
with | |
| 260 * an enum value specifying a field. On output, the FieldPosition will be f
illed | |
| 261 * in with the text offsets for that field. | |
| 262 * <P> For example, given a time text | |
| 263 * "1996.07.10 AD at 15:08:56 PDT", if the given fieldPosition.field is | |
| 264 * UDAT_YEAR_FIELD, the offsets fieldPosition.beginIndex and | |
| 265 * statfieldPositionus.getEndIndex will be set to 0 and 4, respectively. | |
| 266 * <P> Notice | |
| 267 * that if the same time field appears more than once in a pattern, the stat
us will | |
| 268 * be set for the first occurence of that time field. For instance, | |
| 269 * formatting a UDate to the time string "1 PM PDT (Pacific Daylight Time)" | |
| 270 * using the pattern "h a z (zzzz)" and the alignment field | |
| 271 * DateFormat::TIMEZONE_FIELD, the offsets fieldPosition.beginIndex and | |
| 272 * fieldPosition.getEndIndex will be set to 5 and 8, respectively, for the f
irst | |
| 273 * occurence of the timezone pattern character 'z'. | |
| 274 * | |
| 275 * @param cal Calendar set to the date and time to be formatted | |
| 276 * into a date/time string. When the calendar type is | |
| 277 * different from the internal calendar held by this | |
| 278 * DateFormat instance, the date and the time zone will | |
| 279 * be inherited from the input calendar, but other cale
ndar | |
| 280 * field values will be calculated by the internal cale
ndar. | |
| 281 * @param appendTo Output parameter to receive result. | |
| 282 * Result is appended to existing contents. | |
| 283 * @param fieldPosition On input: an alignment field, if desired (see exampl
es above) | |
| 284 * On output: the offsets of the alignment field (see e
xamples above) | |
| 285 * @return Reference to 'appendTo' parameter. | |
| 286 * @stable ICU 2.1 | |
| 287 */ | |
| 288 virtual UnicodeString& format( Calendar& cal, | |
| 289 UnicodeString& appendTo, | |
| 290 FieldPosition& fieldPosition) const = 0; | |
| 291 | |
| 292 /** | |
| 293 * Formats a date into a date/time string. Subclasses should implement this
method. | |
| 294 * | |
| 295 * @param cal Calendar set to the date and time to be formatted | |
| 296 * into a date/time string. When the calendar type is | |
| 297 * different from the internal calendar held by this | |
| 298 * DateFormat instance, the date and the time zone will | |
| 299 * be inherited from the input calendar, but other calendar | |
| 300 * field values will be calculated by the internal calendar
. | |
| 301 * @param appendTo Output parameter to receive result. | |
| 302 * Result is appended to existing contents. | |
| 303 * @param posIter On return, can be used to iterate over positions | |
| 304 * of fields generated by this format call. Field values | |
| 305 * are defined in UDateFormatField. Can be NULL. | |
| 306 * @param status error status. | |
| 307 * @return Reference to 'appendTo' parameter. | |
| 308 * @stable ICU 4.4 | |
| 309 */ | |
| 310 virtual UnicodeString& format(Calendar& cal, | |
| 311 UnicodeString& appendTo, | |
| 312 FieldPositionIterator* posIter, | |
| 313 UErrorCode& status) const; | |
| 314 /** | |
| 315 * Formats a UDate into a date/time string. | |
| 316 * <P> | |
| 317 * On input, the FieldPosition parameter may have its "field" member filled
with | |
| 318 * an enum value specifying a field. On output, the FieldPosition will be f
illed | |
| 319 * in with the text offsets for that field. | |
| 320 * <P> For example, given a time text | |
| 321 * "1996.07.10 AD at 15:08:56 PDT", if the given fieldPosition.field is | |
| 322 * UDAT_YEAR_FIELD, the offsets fieldPosition.beginIndex and | |
| 323 * statfieldPositionus.getEndIndex will be set to 0 and 4, respectively. | |
| 324 * <P> Notice | |
| 325 * that if the same time field appears more than once in a pattern, the stat
us will | |
| 326 * be set for the first occurence of that time field. For instance, | |
| 327 * formatting a UDate to the time string "1 PM PDT (Pacific Daylight Time)" | |
| 328 * using the pattern "h a z (zzzz)" and the alignment field | |
| 329 * DateFormat::TIMEZONE_FIELD, the offsets fieldPosition.beginIndex and | |
| 330 * fieldPosition.getEndIndex will be set to 5 and 8, respectively, for the f
irst | |
| 331 * occurence of the timezone pattern character 'z'. | |
| 332 * | |
| 333 * @param date UDate to be formatted into a date/time string. | |
| 334 * @param appendTo Output parameter to receive result. | |
| 335 * Result is appended to existing contents. | |
| 336 * @param fieldPosition On input: an alignment field, if desired (see exampl
es above) | |
| 337 * On output: the offsets of the alignment field (see e
xamples above) | |
| 338 * @return Reference to 'appendTo' parameter. | |
| 339 * @stable ICU 2.0 | |
| 340 */ | |
| 341 UnicodeString& format( UDate date, | |
| 342 UnicodeString& appendTo, | |
| 343 FieldPosition& fieldPosition) const; | |
| 344 | |
| 345 /** | |
| 346 * Formats a UDate into a date/time string. | |
| 347 * | |
| 348 * @param date UDate to be formatted into a date/time string. | |
| 349 * @param appendTo Output parameter to receive result. | |
| 350 * Result is appended to existing contents. | |
| 351 * @param posIter On return, can be used to iterate over positions | |
| 352 * of fields generated by this format call. Field values | |
| 353 * are defined in UDateFormatField. Can be NULL. | |
| 354 * @param status error status. | |
| 355 * @return Reference to 'appendTo' parameter. | |
| 356 * @stable ICU 4.4 | |
| 357 */ | |
| 358 UnicodeString& format(UDate date, | |
| 359 UnicodeString& appendTo, | |
| 360 FieldPositionIterator* posIter, | |
| 361 UErrorCode& status) const; | |
| 362 /** | |
| 363 * Formats a UDate into a date/time string. If there is a problem, you won't | |
| 364 * know, using this method. Use the overloaded format() method which takes a | |
| 365 * FieldPosition& to detect formatting problems. | |
| 366 * | |
| 367 * @param date The UDate value to be formatted into a string. | |
| 368 * @param appendTo Output parameter to receive result. | |
| 369 * Result is appended to existing contents. | |
| 370 * @return Reference to 'appendTo' parameter. | |
| 371 * @stable ICU 2.0 | |
| 372 */ | |
| 373 UnicodeString& format(UDate date, UnicodeString& appendTo) const; | |
| 374 | |
| 375 /** | |
| 376 * Redeclared Format method. | |
| 377 * | |
| 378 * @param obj The object to be formatted into a string. | |
| 379 * @param appendTo Output parameter to receive result. | |
| 380 * Result is appended to existing contents. | |
| 381 * @param status Output param filled with success/failure status. | |
| 382 * @return Reference to 'appendTo' parameter. | |
| 383 * @stable ICU 2.0 | |
| 384 */ | |
| 385 UnicodeString& format(const Formattable& obj, | |
| 386 UnicodeString& appendTo, | |
| 387 UErrorCode& status) const; | |
| 388 | |
| 389 /** | |
| 390 * Parse a date/time string. | |
| 391 * | |
| 392 * @param text The string to be parsed into a UDate value. | |
| 393 * @param status Output param to be set to success/failure code. If | |
| 394 * 'text' cannot be parsed, it will be set to a failure | |
| 395 * code. | |
| 396 * @result The parsed UDate value, if successful. | |
| 397 * @stable ICU 2.0 | |
| 398 */ | |
| 399 virtual UDate parse( const UnicodeString& text, | |
| 400 UErrorCode& status) const; | |
| 401 | |
| 402 /** | |
| 403 * Parse a date/time string beginning at the given parse position. For | |
| 404 * example, a time text "07/10/96 4:5 PM, PDT" will be parsed into a Date | |
| 405 * that is equivalent to Date(837039928046). | |
| 406 * <P> | |
| 407 * By default, parsing is lenient: If the input is not in the form used by | |
| 408 * this object's format method but can still be parsed as a date, then the | |
| 409 * parse succeeds. Clients may insist on strict adherence to the format by | |
| 410 * calling setLenient(false). | |
| 411 * | |
| 412 * @see DateFormat::setLenient(boolean) | |
| 413 * | |
| 414 * @param text The date/time string to be parsed | |
| 415 * @param cal a Calendar set to the date and time to be formatted | |
| 416 * into a date/time string. When the calendar type | |
| 417 * is different from the internal calendar held by this | |
| 418 * DateFormat instance, calendar field values will be | |
| 419 * parsed based on the internal calendar, then the result | |
| 420 * (time in milliseconds and time zone) will be set in | |
| 421 * this calendar. | |
| 422 * @param pos On input, the position at which to start parsing; on | |
| 423 * output, the position at which parsing terminated, or the | |
| 424 * start position if the parse failed. | |
| 425 * @return A valid UDate if the input could be parsed. | |
| 426 * @stable ICU 2.1 | |
| 427 */ | |
| 428 virtual void parse( const UnicodeString& text, | |
| 429 Calendar& cal, | |
| 430 ParsePosition& pos) const = 0; | |
| 431 | |
| 432 /** | |
| 433 * Parse a date/time string beginning at the given parse position. For | |
| 434 * example, a time text "07/10/96 4:5 PM, PDT" will be parsed into a Date | |
| 435 * that is equivalent to Date(837039928046). | |
| 436 * <P> | |
| 437 * By default, parsing is lenient: If the input is not in the form used by | |
| 438 * this object's format method but can still be parsed as a date, then the | |
| 439 * parse succeeds. Clients may insist on strict adherence to the format by | |
| 440 * calling setLenient(false). | |
| 441 * | |
| 442 * @see DateFormat::setLenient(boolean) | |
| 443 * | |
| 444 * @param text The date/time string to be parsed | |
| 445 * @param pos On input, the position at which to start parsing; on | |
| 446 * output, the position at which parsing terminated, or the | |
| 447 * start position if the parse failed. | |
| 448 * @return A valid UDate if the input could be parsed. | |
| 449 * @stable ICU 2.0 | |
| 450 */ | |
| 451 UDate parse( const UnicodeString& text, | |
| 452 ParsePosition& pos) const; | |
| 453 | |
| 454 /** | |
| 455 * Parse a string to produce an object. This methods handles parsing of | |
| 456 * date/time strings into Formattable objects with UDate types. | |
| 457 * <P> | |
| 458 * Before calling, set parse_pos.index to the offset you want to start | |
| 459 * parsing at in the source. After calling, parse_pos.index is the end of | |
| 460 * the text you parsed. If error occurs, index is unchanged. | |
| 461 * <P> | |
| 462 * When parsing, leading whitespace is discarded (with a successful parse), | |
| 463 * while trailing whitespace is left as is. | |
| 464 * <P> | |
| 465 * See Format::parseObject() for more. | |
| 466 * | |
| 467 * @param source The string to be parsed into an object. | |
| 468 * @param result Formattable to be set to the parse result. | |
| 469 * If parse fails, return contents are undefined. | |
| 470 * @param parse_pos The position to start parsing at. Upon return | |
| 471 * this param is set to the position after the | |
| 472 * last character successfully parsed. If the | |
| 473 * source is not parsed successfully, this param | |
| 474 * will remain unchanged. | |
| 475 * @return A newly created Formattable* object, or NULL | |
| 476 * on failure. The caller owns this and should | |
| 477 * delete it when done. | |
| 478 * @stable ICU 2.0 | |
| 479 */ | |
| 480 virtual void parseObject(const UnicodeString& source, | |
| 481 Formattable& result, | |
| 482 ParsePosition& parse_pos) const; | |
| 483 | |
| 484 /** | |
| 485 * Create a default date/time formatter that uses the SHORT style for both | |
| 486 * the date and the time. | |
| 487 * | |
| 488 * @return A date/time formatter which the caller owns. | |
| 489 * @stable ICU 2.0 | |
| 490 */ | |
| 491 static DateFormat* U_EXPORT2 createInstance(void); | |
| 492 | |
| 493 /** | |
| 494 * Creates a time formatter with the given formatting style for the given | |
| 495 * locale. | |
| 496 * | |
| 497 * @param style The given formatting style. For example, | |
| 498 * SHORT for "h:mm a" in the US locale. Relative | |
| 499 * time styles are not currently supported. | |
| 500 * @param aLocale The given locale. | |
| 501 * @return A time formatter which the caller owns. | |
| 502 * @stable ICU 2.0 | |
| 503 */ | |
| 504 static DateFormat* U_EXPORT2 createTimeInstance(EStyle style = kDefault, | |
| 505 const Locale& aLocale = Locale::getDef
ault()); | |
| 506 | |
| 507 /** | |
| 508 * Creates a date formatter with the given formatting style for the given | |
| 509 * const locale. | |
| 510 * | |
| 511 * @param style The given formatting style. For example, | |
| 512 * SHORT for "M/d/yy" in the US locale. | |
| 513 * @param aLocale The given locale. | |
| 514 * @return A date formatter which the caller owns. | |
| 515 * @stable ICU 2.0 | |
| 516 */ | |
| 517 static DateFormat* U_EXPORT2 createDateInstance(EStyle style = kDefault, | |
| 518 const Locale& aLocale = Locale::getDef
ault()); | |
| 519 | |
| 520 /** | |
| 521 * Creates a date/time formatter with the given formatting styles for the | |
| 522 * given locale. | |
| 523 * | |
| 524 * @param dateStyle The given formatting style for the date portion of the r
esult. | |
| 525 * For example, SHORT for "M/d/yy" in the US locale. | |
| 526 * @param timeStyle The given formatting style for the time portion of the r
esult. | |
| 527 * For example, SHORT for "h:mm a" in the US locale. Relati
ve | |
| 528 * time styles are not currently supported. | |
| 529 * @param aLocale The given locale. | |
| 530 * @return A date/time formatter which the caller owns. | |
| 531 * @stable ICU 2.0 | |
| 532 */ | |
| 533 static DateFormat* U_EXPORT2 createDateTimeInstance(EStyle dateStyle = kDefa
ult, | |
| 534 EStyle timeStyle = kDefault, | |
| 535 const Locale& aLocale = Locale::ge
tDefault()); | |
| 536 | |
| 537 /** | |
| 538 * Gets the set of locales for which DateFormats are installed. | |
| 539 * @param count Filled in with the number of locales in the list that is ret
urned. | |
| 540 * @return the set of locales for which DateFormats are installed. The call
er | |
| 541 * does NOT own this list and must not delete it. | |
| 542 * @stable ICU 2.0 | |
| 543 */ | |
| 544 static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count); | |
| 545 | |
| 546 /** | |
| 547 * Returns true if the formatter is set for lenient parsing. | |
| 548 * @stable ICU 2.0 | |
| 549 */ | |
| 550 virtual UBool isLenient(void) const; | |
| 551 | |
| 552 /** | |
| 553 * Specify whether or not date/time parsing is to be lenient. With lenient | |
| 554 * parsing, the parser may use heuristics to interpret inputs that do not | |
| 555 * precisely match this object's format. With strict parsing, inputs must | |
| 556 * match this object's format. | |
| 557 * | |
| 558 * @param lenient True specifies date/time interpretation to be lenient. | |
| 559 * @see Calendar::setLenient | |
| 560 * @stable ICU 2.0 | |
| 561 */ | |
| 562 virtual void setLenient(UBool lenient); | |
| 563 | |
| 564 /** | |
| 565 * Gets the calendar associated with this date/time formatter. | |
| 566 * @return the calendar associated with this date/time formatter. | |
| 567 * @stable ICU 2.0 | |
| 568 */ | |
| 569 virtual const Calendar* getCalendar(void) const; | |
| 570 | |
| 571 /** | |
| 572 * Set the calendar to be used by this date format. Initially, the default | |
| 573 * calendar for the specified or default locale is used. The caller should | |
| 574 * not delete the Calendar object after it is adopted by this call. | |
| 575 * Adopting a new calendar will change to the default symbols. | |
| 576 * | |
| 577 * @param calendarToAdopt Calendar object to be adopted. | |
| 578 * @stable ICU 2.0 | |
| 579 */ | |
| 580 virtual void adoptCalendar(Calendar* calendarToAdopt); | |
| 581 | |
| 582 /** | |
| 583 * Set the calendar to be used by this date format. Initially, the default | |
| 584 * calendar for the specified or default locale is used. | |
| 585 * | |
| 586 * @param newCalendar Calendar object to be set. | |
| 587 * @stable ICU 2.0 | |
| 588 */ | |
| 589 virtual void setCalendar(const Calendar& newCalendar); | |
| 590 | |
| 591 | |
| 592 /** | |
| 593 * Gets the number formatter which this date/time formatter uses to format | |
| 594 * and parse the numeric portions of the pattern. | |
| 595 * @return the number formatter which this date/time formatter uses. | |
| 596 * @stable ICU 2.0 | |
| 597 */ | |
| 598 virtual const NumberFormat* getNumberFormat(void) const; | |
| 599 | |
| 600 /** | |
| 601 * Allows you to set the number formatter. The caller should | |
| 602 * not delete the NumberFormat object after it is adopted by this call. | |
| 603 * @param formatToAdopt NumberFormat object to be adopted. | |
| 604 * @stable ICU 2.0 | |
| 605 */ | |
| 606 virtual void adoptNumberFormat(NumberFormat* formatToAdopt); | |
| 607 | |
| 608 /** | |
| 609 * Allows you to set the number formatter. | |
| 610 * @param newNumberFormat NumberFormat object to be set. | |
| 611 * @stable ICU 2.0 | |
| 612 */ | |
| 613 virtual void setNumberFormat(const NumberFormat& newNumberFormat); | |
| 614 | |
| 615 /** | |
| 616 * Returns a reference to the TimeZone used by this DateFormat's calendar. | |
| 617 * @return the time zone associated with the calendar of DateFormat. | |
| 618 * @stable ICU 2.0 | |
| 619 */ | |
| 620 virtual const TimeZone& getTimeZone(void) const; | |
| 621 | |
| 622 /** | |
| 623 * Sets the time zone for the calendar of this DateFormat object. The caller | |
| 624 * no longer owns the TimeZone object and should not delete it after this ca
ll. | |
| 625 * @param zoneToAdopt the TimeZone to be adopted. | |
| 626 * @stable ICU 2.0 | |
| 627 */ | |
| 628 virtual void adoptTimeZone(TimeZone* zoneToAdopt); | |
| 629 | |
| 630 /** | |
| 631 * Sets the time zone for the calendar of this DateFormat object. | |
| 632 * @param zone the new time zone. | |
| 633 * @stable ICU 2.0 | |
| 634 */ | |
| 635 virtual void setTimeZone(const TimeZone& zone); | |
| 636 | |
| 637 protected: | |
| 638 /** | |
| 639 * Default constructor. Creates a DateFormat with no Calendar or NumberForm
at | |
| 640 * associated with it. This constructor depends on the subclasses to fill i
n | |
| 641 * the calendar and numberFormat fields. | |
| 642 * @stable ICU 2.0 | |
| 643 */ | |
| 644 DateFormat(); | |
| 645 | |
| 646 /** | |
| 647 * Copy constructor. | |
| 648 * @stable ICU 2.0 | |
| 649 */ | |
| 650 DateFormat(const DateFormat&); | |
| 651 | |
| 652 /** | |
| 653 * Default assignment operator. | |
| 654 * @stable ICU 2.0 | |
| 655 */ | |
| 656 DateFormat& operator=(const DateFormat&); | |
| 657 | |
| 658 /** | |
| 659 * The calendar that DateFormat uses to produce the time field values needed | |
| 660 * to implement date/time formatting. Subclasses should generally initialize | |
| 661 * this to the default calendar for the locale associated with this DateForm
at. | |
| 662 * @stable ICU 2.4 | |
| 663 */ | |
| 664 Calendar* fCalendar; | |
| 665 | |
| 666 /** | |
| 667 * The number formatter that DateFormat uses to format numbers in dates and | |
| 668 * times. Subclasses should generally initialize this to the default number | |
| 669 * format for the locale associated with this DateFormat. | |
| 670 * @stable ICU 2.4 | |
| 671 */ | |
| 672 NumberFormat* fNumberFormat; | |
| 673 | |
| 674 private: | |
| 675 /** | |
| 676 * Gets the date/time formatter with the given formatting styles for the | |
| 677 * given locale. | |
| 678 * @param dateStyle the given date formatting style. | |
| 679 * @param timeStyle the given time formatting style. | |
| 680 * @param inLocale the given locale. | |
| 681 * @return a date/time formatter, or 0 on failure. | |
| 682 */ | |
| 683 static DateFormat* U_EXPORT2 create(EStyle timeStyle, EStyle dateStyle, cons
t Locale&); | |
| 684 | |
| 685 public: | |
| 686 /** | |
| 687 * Field selector for FieldPosition for DateFormat fields. | |
| 688 * @obsolete ICU 3.4 use UDateFormatField instead, since this API will be | |
| 689 * removed in that release | |
| 690 */ | |
| 691 enum EField | |
| 692 { | |
| 693 // Obsolete; use UDateFormatField instead | |
| 694 kEraField = UDAT_ERA_FIELD, | |
| 695 kYearField = UDAT_YEAR_FIELD, | |
| 696 kMonthField = UDAT_MONTH_FIELD, | |
| 697 kDateField = UDAT_DATE_FIELD, | |
| 698 kHourOfDay1Field = UDAT_HOUR_OF_DAY1_FIELD, | |
| 699 kHourOfDay0Field = UDAT_HOUR_OF_DAY0_FIELD, | |
| 700 kMinuteField = UDAT_MINUTE_FIELD, | |
| 701 kSecondField = UDAT_SECOND_FIELD, | |
| 702 kMillisecondField = UDAT_FRACTIONAL_SECOND_FIELD, | |
| 703 kDayOfWeekField = UDAT_DAY_OF_WEEK_FIELD, | |
| 704 kDayOfYearField = UDAT_DAY_OF_YEAR_FIELD, | |
| 705 kDayOfWeekInMonthField = UDAT_DAY_OF_WEEK_IN_MONTH_FIELD, | |
| 706 kWeekOfYearField = UDAT_WEEK_OF_YEAR_FIELD, | |
| 707 kWeekOfMonthField = UDAT_WEEK_OF_MONTH_FIELD, | |
| 708 kAmPmField = UDAT_AM_PM_FIELD, | |
| 709 kHour1Field = UDAT_HOUR1_FIELD, | |
| 710 kHour0Field = UDAT_HOUR0_FIELD, | |
| 711 kTimezoneField = UDAT_TIMEZONE_FIELD, | |
| 712 kYearWOYField = UDAT_YEAR_WOY_FIELD, | |
| 713 kDOWLocalField = UDAT_DOW_LOCAL_FIELD, | |
| 714 kExtendedYearField = UDAT_EXTENDED_YEAR_FIELD, | |
| 715 kJulianDayField = UDAT_JULIAN_DAY_FIELD, | |
| 716 kMillisecondsInDayField = UDAT_MILLISECONDS_IN_DAY_FIELD, | |
| 717 | |
| 718 // Obsolete; use UDateFormatField instead | |
| 719 ERA_FIELD = UDAT_ERA_FIELD, | |
| 720 YEAR_FIELD = UDAT_YEAR_FIELD, | |
| 721 MONTH_FIELD = UDAT_MONTH_FIELD, | |
| 722 DATE_FIELD = UDAT_DATE_FIELD, | |
| 723 HOUR_OF_DAY1_FIELD = UDAT_HOUR_OF_DAY1_FIELD, | |
| 724 HOUR_OF_DAY0_FIELD = UDAT_HOUR_OF_DAY0_FIELD, | |
| 725 MINUTE_FIELD = UDAT_MINUTE_FIELD, | |
| 726 SECOND_FIELD = UDAT_SECOND_FIELD, | |
| 727 MILLISECOND_FIELD = UDAT_FRACTIONAL_SECOND_FIELD, | |
| 728 DAY_OF_WEEK_FIELD = UDAT_DAY_OF_WEEK_FIELD, | |
| 729 DAY_OF_YEAR_FIELD = UDAT_DAY_OF_YEAR_FIELD, | |
| 730 DAY_OF_WEEK_IN_MONTH_FIELD = UDAT_DAY_OF_WEEK_IN_MONTH_FIELD, | |
| 731 WEEK_OF_YEAR_FIELD = UDAT_WEEK_OF_YEAR_FIELD, | |
| 732 WEEK_OF_MONTH_FIELD = UDAT_WEEK_OF_MONTH_FIELD, | |
| 733 AM_PM_FIELD = UDAT_AM_PM_FIELD, | |
| 734 HOUR1_FIELD = UDAT_HOUR1_FIELD, | |
| 735 HOUR0_FIELD = UDAT_HOUR0_FIELD, | |
| 736 TIMEZONE_FIELD = UDAT_TIMEZONE_FIELD | |
| 737 }; | |
| 738 }; | |
| 739 | |
| 740 inline UnicodeString& | |
| 741 DateFormat::format(const Formattable& obj, | |
| 742 UnicodeString& appendTo, | |
| 743 UErrorCode& status) const { | |
| 744 return Format::format(obj, appendTo, status); | |
| 745 } | |
| 746 U_NAMESPACE_END | |
| 747 | |
| 748 #endif /* #if !UCONFIG_NO_FORMATTING */ | |
| 749 | |
| 750 #endif // _DATEFMT | |
| 751 //eof | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 19417002:
Move ICU header part 2 (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/icu46/