icuSources/i18n/unicode/udat.h

   1 /*
   2  *******************************************************************************
   3  * Copyright (C) 1996-2012, International Business Machines
   4  * Corporation and others. All Rights Reserved.
   5  *******************************************************************************
   6 */
   7
   8 #ifndef UDAT_H
   9 #define UDAT_H
  10
  11 #include "unicode/utypes.h"
  12
  13 #if !UCONFIG_NO_FORMATTING
  14
  15 #include "unicode/localpointer.h"
  16 #include "unicode/ucal.h"
  17 #include "unicode/unum.h"
  18 /**
  19  * \file
  20  * \brief C API: DateFormat
  21  *
  22  * <h2> Date Format C API</h2>
  23  *
  24  * Date Format C API  consists of functions that convert dates and
  25  * times from their internal representations to textual form and back again in a
  26  * language-independent manner. Converting from the internal representation (milliseconds
  27  * since midnight, January 1, 1970) to text is known as "formatting," and converting
  28  * from text to millis is known as "parsing."  We currently define only one concrete
  29  * structure UDateFormat, which can handle pretty much all normal
  30  * date formatting and parsing actions.
  31  * <P>
  32  * Date Format helps you to format and parse dates for any locale. Your code can
  33  * be completely independent of the locale conventions for months, days of the
  34  * week, or even the calendar format: lunar vs. solar.
  35  * <P>
  36  * To format a date for the current Locale with default time and date style,
  37  * use one of the static factory methods:
  38  * <pre>
  39  * \code
  40  *  UErrorCode status = U_ZERO_ERROR;
  41  *  UChar *myString;
  42  *  int32_t myStrlen = 0;
  43  *  UDateFormat* dfmt = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, NULL, -1, NULL, -1, &status);
  44  *  myStrlen = udat_format(dfmt, myDate, NULL, myStrlen, NULL, &status);
  45  *  if (status==U_BUFFER_OVERFLOW_ERROR){
  46  *      status=U_ZERO_ERROR;
  47  *      myString=(UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
  48  *      udat_format(dfmt, myDate, myString, myStrlen+1, NULL, &status);
  49  *  }
  50  * \endcode
  51  * </pre>
  52  * If you are formatting multiple numbers, it is more efficient to get the
  53  * format and use it multiple times so that the system doesn't have to fetch the
  54  * information about the local language and country conventions multiple times.
  55  * <pre>
  56  * \code
  57  *  UErrorCode status = U_ZERO_ERROR;
  58  *  int32_t i, myStrlen = 0;
  59  *  UChar* myString;
  60  *  char buffer[1024];
  61  *  UDate myDateArr[] = { 0.0, 100000000.0, 2000000000.0 }; // test values
  62  *  UDateFormat* df = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, NULL, -1, NULL, 0, &status);
  63  *  for (i = 0; i < 3; i++) {
  64  *      myStrlen = udat_format(df, myDateArr[i], NULL, myStrlen, NULL, &status);
  65  *      if(status == U_BUFFER_OVERFLOW_ERROR){
  66  *          status = U_ZERO_ERROR;
  67  *          myString = (UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
  68  *          udat_format(df, myDateArr[i], myString, myStrlen+1, NULL, &status);
  69  *          printf("%s\n", u_austrcpy(buffer, myString) );
  70  *          free(myString);
  71  *      }
  72  *  }
  73  * \endcode
  74  * </pre>
  75  * To get specific fields of a date, you can use UFieldPosition to
  76  * get specific fields.
  77  * <pre>
  78  * \code
  79  *  UErrorCode status = U_ZERO_ERROR;
  80  *  UFieldPosition pos;
  81  *  UChar *myString;
  82  *  int32_t myStrlen = 0;
  83  *  char buffer[1024];
  84  *
  85  *  pos.field = 1;  // Same as the DateFormat::EField enum
  86  *  UDateFormat* dfmt = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, -1, NULL, 0, &status);
  87  *  myStrlen = udat_format(dfmt, myDate, NULL, myStrlen, &pos, &status);
  88  *  if (status==U_BUFFER_OVERFLOW_ERROR){
  89  *      status=U_ZERO_ERROR;
  90  *      myString=(UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
  91  *      udat_format(dfmt, myDate, myString, myStrlen+1, &pos, &status);
  92  *  }
  93  *  printf("date format: %s\n", u_austrcpy(buffer, myString));
  94  *  buffer[pos.endIndex] = 0;   // NULL terminate the string.
  95  *  printf("UFieldPosition position equals %s\n", &buffer[pos.beginIndex]);
  96  * \endcode
  97  * </pre>
  98  * To format a date for a different Locale, specify it in the call to
  99  * udat_open()
 100  * <pre>
 101  * \code
 102  *        UDateFormat* df = udat_open(UDAT_SHORT, UDAT_SHORT, "fr_FR", NULL, -1, NULL, 0, &status);
 103  * \endcode
 104  * </pre>
 105  * You can use a DateFormat API udat_parse() to parse.
 106  * <pre>
 107  * \code
 108  *  UErrorCode status = U_ZERO_ERROR;
 109  *  int32_t parsepos=0;
 110  *  UDate myDate = udat_parse(df, myString, u_strlen(myString), &parsepos, &status);
 111  * \endcode
 112  * </pre>
 113  *  You can pass in different options for the arguments for date and time style
 114  *  to control the length of the result; from SHORT to MEDIUM to LONG to FULL.
 115  *  The exact result depends on the locale, but generally:
 116  *  see UDateFormatStyle for more details
 117  * <ul type=round>
 118  *   <li>   UDAT_SHORT is completely numeric, such as 12/13/52 or 3:30pm
 119  *   <li>   UDAT_MEDIUM is longer, such as Jan 12, 1952
 120  *   <li>   UDAT_LONG is longer, such as January 12, 1952 or 3:30:32pm
 121  *   <li>   UDAT_FULL is pretty completely specified, such as
 122  *          Tuesday, April 12, 1952 AD or 3:30:42pm PST.
 123  * </ul>
 124  * You can also set the time zone on the format if you wish.
 125  * <P>
 126  * You can also use forms of the parse and format methods with Parse Position and
 127  * UFieldPosition 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
 135 /** A date formatter.
 136  *  For usage in C programs.
 137  *  @stable ICU 2.6
 138  */
 139 typedef void* UDateFormat;
 140
 141 /** The possible date/time format styles
 142  *  @stable ICU 2.6
 143  */
 144 typedef enum UDateFormatStyle {
 145     /** Full style */
 146     UDAT_FULL,
 147     /** Long style */
 148     UDAT_LONG,
 149     /** Medium style */
 150     UDAT_MEDIUM,
 151     /** Short style */
 152     UDAT_SHORT,
 153     /** Default style */
 154     UDAT_DEFAULT = UDAT_MEDIUM,
 155
 156     /** Bitfield for relative date */
 157     UDAT_RELATIVE = (1 << 7),
 158
 159     UDAT_FULL_RELATIVE = UDAT_FULL | UDAT_RELATIVE,
 160
 161     UDAT_LONG_RELATIVE = UDAT_LONG | UDAT_RELATIVE,
 162
 163     UDAT_MEDIUM_RELATIVE = UDAT_MEDIUM | UDAT_RELATIVE,
 164
 165     UDAT_SHORT_RELATIVE = UDAT_SHORT | UDAT_RELATIVE,
 166
 167
 168     /** No style */
 169     UDAT_NONE = -1,
 170     /** for internal API use only */
 171     UDAT_IGNORE = -2
 172
 173 } UDateFormatStyle;
 174
 175 /* Cannot use #ifndef U_HIDE_DRAFT_API for UDateFormatContextType and UDateFormatContextValue
 176  * since a SimpleDateFormat virtual method & data member depends on them */
 177 /** Date format context types
 178  *  @draft ICU 49
 179  */
 180 typedef enum UDateFormatContextType {
 181     /**
 182      * Type (key) for specifying the capitalization context for which a date
 183      * is to be formatted (possible values are in UDateFormatContextValue).
 184      * @draft ICU 49
 185      */
 186     UDAT_CAPITALIZATION = 1
 187 } UDateFormatContextType;
 188
 189 /** Values for date format context types
 190  *  @draft ICU 49
 191  */
 192 typedef enum UDateFormatContextValue {
 193        /** Values for any UDateFormatContextType (key) */
 194     /**
 195      * Value for any UDateFormatContextType (such as UDAT_CAPITALIZATION) if the
 196      * relevant context to be used in formatting a date is unknown (this is the
 197      * default value for any UDateFormatContextType when no value has been
 198      * explicitly specified for that UDateFormatContextType).
 199      * @draft ICU 49
 200      */
 201     UDAT_CONTEXT_UNKNOWN = 0,
 202 #if !UCONFIG_NO_BREAK_ITERATION
 203     /** Values for type (key) UDAT_CAPITALIZATION */
 204     /**
 205      * UDAT_CAPITALIZATION value if a date (or date symbol) is to be formatted
 206      * with capitalization appropriate for the middle of a sentence.
 207      * @draft ICU 49
 208      */
 209     UDAT_CAPITALIZATION_FOR_MIDDLE_OF_SENTENCE = 1,
 210     /**
 211      * UDAT_CAPITALIZATION value if a date (or date symbol) is to be formatted
 212      * with capitalization appropriate for the beginning of a sentence.
 213      * @draft ICU 49
 214      */
 215     UDAT_CAPITALIZATION_FOR_BEGINNING_OF_SENTENCE = 2,
 216     /**
 217      * UDAT_CAPITALIZATION value if a date (or date symbol) is to be formatted
 218      * with capitalization appropriate for a user-interface list or menu item.
 219      * @draft ICU 49
 220      */
 221     UDAT_CAPITALIZATION_FOR_UI_LIST_OR_MENU = 3,
 222     /**
 223      * UDAT_CAPITALIZATION value if a date (or date symbol) is to be formatted
 224      * with capitalization appropriate for stand-alone usage such as an
 225      * isolated name on a calendar page.
 226      * @draft ICU 49
 227      */
 228     UDAT_CAPITALIZATION_FOR_STANDALONE = 4
 229 #endif
 230 } UDateFormatContextValue;
 231
 232 /**
 233  * @{
 234  * Below are a set of pre-defined skeletons.
 235  *
 236  * <P>
 237  * A skeleton
 238  * <ol>
 239  * <li>
 240  *    only keeps the field pattern letter and ignores all other parts
 241  *    in a pattern, such as space, punctuations, and string literals.
 242  * </li>
 243  * <li>
 244  *    hides the order of fields.
 245  * </li>
 246  * <li>
 247  *    might hide a field's pattern letter length.
 248  *
 249  *    For those non-digit calendar fields, the pattern letter length is
 250  *    important, such as MMM, MMMM, and MMMMM; EEE and EEEE,
 251  *    and the field's pattern letter length is honored.
 252  *
 253  *    For the digit calendar fields,  such as M or MM, d or dd, yy or yyyy,
 254  *    the field pattern length is ignored and the best match, which is defined
 255  *    in date time patterns, will be returned without honor the field pattern
 256  *    letter length in skeleton.
 257  * </li>
 258  * </ol>
 259  *
 260  * @stable ICU 4.0
 261  */
 262
 263 #define UDAT_MINUTE_SECOND              "ms"
 264 #define UDAT_HOUR24_MINUTE              "Hm"
 265 #define UDAT_HOUR24_MINUTE_SECOND       "Hms"
 266 #define UDAT_HOUR_MINUTE_SECOND         "hms"
 267 #define UDAT_STANDALONE_MONTH           "LLLL"
 268 #define UDAT_ABBR_STANDALONE_MONTH      "LLL"
 269 #define UDAT_YEAR_QUARTER               "yQQQ"
 270 #define UDAT_YEAR_ABBR_QUARTER          "yQ"
 271
 272 /** @} */
 273
 274 /**
 275  * @{
 276  * Below are a set of pre-defined skeletons that
 277  * have pre-defined interval patterns in resource files.
 278  * Users are encouraged to use them in date interval format factory methods.
 279  *
 280  * @stable ICU 4.0
 281  */
 282 #define UDAT_HOUR_MINUTE                "hm"
 283 #define UDAT_YEAR                       "y"
 284 #define UDAT_DAY                        "d"
 285 #define UDAT_NUM_MONTH_WEEKDAY_DAY      "MEd"
 286 #define UDAT_YEAR_NUM_MONTH             "yM"
 287 #define UDAT_NUM_MONTH_DAY              "Md"
 288 #define UDAT_YEAR_NUM_MONTH_WEEKDAY_DAY "yMEd"
 289 #define UDAT_ABBR_MONTH_WEEKDAY_DAY     "MMMEd"
 290 #define UDAT_YEAR_MONTH                 "yMMMM"
 291 #define UDAT_YEAR_ABBR_MONTH            "yMMM"
 292 #define UDAT_MONTH_DAY                  "MMMMd"
 293 #define UDAT_ABBR_MONTH_DAY             "MMMd"
 294 #define UDAT_MONTH_WEEKDAY_DAY          "MMMMEEEEd"
 295 #define UDAT_YEAR_ABBR_MONTH_WEEKDAY_DAY "yMMMEd"
 296 #define UDAT_YEAR_MONTH_WEEKDAY_DAY     "yMMMMEEEEd"
 297 #define UDAT_YEAR_MONTH_DAY             "yMMMMd"
 298 #define UDAT_YEAR_ABBR_MONTH_DAY        "yMMMd"
 299 #define UDAT_YEAR_NUM_MONTH_DAY         "yMd"
 300 #define UDAT_NUM_MONTH                  "M"
 301 #define UDAT_ABBR_MONTH                 "MMM"
 302 #define UDAT_MONTH                      "MMMM"
 303 #define UDAT_HOUR_MINUTE_GENERIC_TZ     "hmv"
 304 #define UDAT_HOUR_MINUTE_TZ             "hmz"
 305 #define UDAT_HOUR                       "h"
 306 #define UDAT_HOUR_GENERIC_TZ            "hv"
 307 #define UDAT_HOUR_TZ                    "hz"
 308
 309 /** @} */
 310
 311
 312 /**
 313  * FieldPosition and UFieldPosition selectors for format fields
 314  * defined by DateFormat and UDateFormat.
 315  * @stable ICU 3.0
 316  */
 317 typedef enum UDateFormatField {
 318     /**
 319      * FieldPosition and UFieldPosition selector for 'G' field alignment,
 320      * corresponding to the UCAL_ERA field.
 321      * @stable ICU 3.0
 322      */
 323     UDAT_ERA_FIELD = 0,
 324
 325     /**
 326      * FieldPosition and UFieldPosition selector for 'y' field alignment,
 327      * corresponding to the UCAL_YEAR field.
 328      * @stable ICU 3.0
 329      */
 330     UDAT_YEAR_FIELD = 1,
 331
 332     /**
 333      * FieldPosition and UFieldPosition selector for 'M' field alignment,
 334      * corresponding to the UCAL_MONTH field.
 335      * @stable ICU 3.0
 336      */
 337     UDAT_MONTH_FIELD = 2,
 338
 339     /**
 340      * FieldPosition and UFieldPosition selector for 'd' field alignment,
 341      * corresponding to the UCAL_DATE field.
 342      * @stable ICU 3.0
 343      */
 344     UDAT_DATE_FIELD = 3,
 345
 346     /**
 347      * FieldPosition and UFieldPosition selector for 'k' field alignment,
 348      * corresponding to the UCAL_HOUR_OF_DAY field.
 349      * UDAT_HOUR_OF_DAY1_FIELD is used for the one-based 24-hour clock.
 350      * For example, 23:59 + 01:00 results in 24:59.
 351      * @stable ICU 3.0
 352      */
 353     UDAT_HOUR_OF_DAY1_FIELD = 4,
 354
 355     /**
 356      * FieldPosition and UFieldPosition selector for 'H' field alignment,
 357      * corresponding to the UCAL_HOUR_OF_DAY field.
 358      * UDAT_HOUR_OF_DAY0_FIELD is used for the zero-based 24-hour clock.
 359      * For example, 23:59 + 01:00 results in 00:59.
 360      * @stable ICU 3.0
 361      */
 362     UDAT_HOUR_OF_DAY0_FIELD = 5,
 363
 364     /**
 365      * FieldPosition and UFieldPosition selector for 'm' field alignment,
 366      * corresponding to the UCAL_MINUTE field.
 367      * @stable ICU 3.0
 368      */
 369     UDAT_MINUTE_FIELD = 6,
 370
 371     /**
 372      * FieldPosition and UFieldPosition selector for 's' field alignment,
 373      * corresponding to the UCAL_SECOND field.
 374      * @stable ICU 3.0
 375      */
 376     UDAT_SECOND_FIELD = 7,
 377
 378     /**
 379      * FieldPosition and UFieldPosition selector for 'S' field alignment,
 380      * corresponding to the UCAL_MILLISECOND field.
 381      * @stable ICU 3.0
 382      */
 383     UDAT_FRACTIONAL_SECOND_FIELD = 8,
 384
 385     /**
 386      * FieldPosition and UFieldPosition selector for 'E' field alignment,
 387      * corresponding to the UCAL_DAY_OF_WEEK field.
 388      * @stable ICU 3.0
 389      */
 390     UDAT_DAY_OF_WEEK_FIELD = 9,
 391
 392     /**
 393      * FieldPosition and UFieldPosition selector for 'D' field alignment,
 394      * corresponding to the UCAL_DAY_OF_YEAR field.
 395      * @stable ICU 3.0
 396      */
 397     UDAT_DAY_OF_YEAR_FIELD = 10,
 398
 399     /**
 400      * FieldPosition and UFieldPosition selector for 'F' field alignment,
 401      * corresponding to the UCAL_DAY_OF_WEEK_IN_MONTH field.
 402      * @stable ICU 3.0
 403      */
 404     UDAT_DAY_OF_WEEK_IN_MONTH_FIELD = 11,
 405
 406     /**
 407      * FieldPosition and UFieldPosition selector for 'w' field alignment,
 408      * corresponding to the UCAL_WEEK_OF_YEAR field.
 409      * @stable ICU 3.0
 410      */
 411     UDAT_WEEK_OF_YEAR_FIELD = 12,
 412
 413     /**
 414      * FieldPosition and UFieldPosition selector for 'W' field alignment,
 415      * corresponding to the UCAL_WEEK_OF_MONTH field.
 416      * @stable ICU 3.0
 417      */
 418     UDAT_WEEK_OF_MONTH_FIELD = 13,
 419
 420     /**
 421      * FieldPosition and UFieldPosition selector for 'a' field alignment,
 422      * corresponding to the UCAL_AM_PM field.
 423      * @stable ICU 3.0
 424      */
 425     UDAT_AM_PM_FIELD = 14,
 426
 427     /**
 428      * FieldPosition and UFieldPosition selector for 'h' field alignment,
 429      * corresponding to the UCAL_HOUR field.
 430      * UDAT_HOUR1_FIELD is used for the one-based 12-hour clock.
 431      * For example, 11:30 PM + 1 hour results in 12:30 AM.
 432      * @stable ICU 3.0
 433      */
 434     UDAT_HOUR1_FIELD = 15,
 435
 436     /**
 437      * FieldPosition and UFieldPosition selector for 'K' field alignment,
 438      * corresponding to the UCAL_HOUR field.
 439      * UDAT_HOUR0_FIELD is used for the zero-based 12-hour clock.
 440      * For example, 11:30 PM + 1 hour results in 00:30 AM.
 441      * @stable ICU 3.0
 442      */
 443     UDAT_HOUR0_FIELD = 16,
 444
 445     /**
 446      * FieldPosition and UFieldPosition selector for 'z' field alignment,
 447      * corresponding to the UCAL_ZONE_OFFSET and
 448      * UCAL_DST_OFFSET fields.
 449      * @stable ICU 3.0
 450      */
 451     UDAT_TIMEZONE_FIELD = 17,
 452
 453     /**
 454      * FieldPosition and UFieldPosition selector for 'Y' field alignment,
 455      * corresponding to the UCAL_YEAR_WOY field.
 456      * @stable ICU 3.0
 457      */
 458     UDAT_YEAR_WOY_FIELD = 18,
 459
 460     /**
 461      * FieldPosition and UFieldPosition selector for 'e' field alignment,
 462      * corresponding to the UCAL_DOW_LOCAL field.
 463      * @stable ICU 3.0
 464      */
 465     UDAT_DOW_LOCAL_FIELD = 19,
 466
 467     /**
 468      * FieldPosition and UFieldPosition selector for 'u' field alignment,
 469      * corresponding to the UCAL_EXTENDED_YEAR field.
 470      * @stable ICU 3.0
 471      */
 472     UDAT_EXTENDED_YEAR_FIELD = 20,
 473
 474     /**
 475      * FieldPosition and UFieldPosition selector for 'g' field alignment,
 476      * corresponding to the UCAL_JULIAN_DAY field.
 477      * @stable ICU 3.0
 478      */
 479     UDAT_JULIAN_DAY_FIELD = 21,
 480
 481     /**
 482      * FieldPosition and UFieldPosition selector for 'A' field alignment,
 483      * corresponding to the UCAL_MILLISECONDS_IN_DAY field.
 484      * @stable ICU 3.0
 485      */
 486     UDAT_MILLISECONDS_IN_DAY_FIELD = 22,
 487
 488     /**
 489      * FieldPosition and UFieldPosition selector for 'Z' field alignment,
 490      * corresponding to the UCAL_ZONE_OFFSET and
 491      * UCAL_DST_OFFSET fields.
 492      * @stable ICU 3.0
 493      */
 494     UDAT_TIMEZONE_RFC_FIELD = 23,
 495
 496     /**
 497      * FieldPosition and UFieldPosition selector for 'v' field alignment,
 498      * corresponding to the UCAL_ZONE_OFFSET field.
 499      * @stable ICU 3.4
 500      */
 501     UDAT_TIMEZONE_GENERIC_FIELD = 24,
 502     /**
 503      * FieldPosition selector for 'c' field alignment,
 504      * corresponding to the {@link #UCAL_DOW_LOCAL} field.
 505      * This displays the stand alone day name, if available.
 506      * @stable ICU 3.4
 507      */
 508     UDAT_STANDALONE_DAY_FIELD = 25,
 509
 510     /**
 511      * FieldPosition selector for 'L' field alignment,
 512      * corresponding to the {@link #UCAL_MONTH} field.
 513      * This displays the stand alone month name, if available.
 514      * @stable ICU 3.4
 515      */
 516     UDAT_STANDALONE_MONTH_FIELD = 26,
 517
 518     /**
 519      * FieldPosition selector for "Q" field alignment,
 520      * corresponding to quarters. This is implemented
 521      * using the {@link #UCAL_MONTH} field. This
 522      * displays the quarter.
 523      * @stable ICU 3.6
 524      */
 525     UDAT_QUARTER_FIELD = 27,
 526
 527     /**
 528      * FieldPosition selector for the "q" field alignment,
 529      * corresponding to stand-alone quarters. This is
 530      * implemented using the {@link #UCAL_MONTH} field.
 531      * This displays the stand-alone quarter.
 532      * @stable ICU 3.6
 533      */
 534     UDAT_STANDALONE_QUARTER_FIELD = 28,
 535
 536     /**
 537      * FieldPosition and UFieldPosition selector for 'V' field alignment,
 538      * corresponding to the UCAL_ZONE_OFFSET field.
 539      * @stable ICU 3.8
 540      */
 541     UDAT_TIMEZONE_SPECIAL_FIELD = 29,
 542
 543     /**
 544      * FieldPosition selector for "U" field alignment,
 545      * corresponding to cyclic year names. This is implemented
 546      * using the {@link #UCAL_YEAR} field. This displays
 547      * the cyclic year name, if available.
 548      * @draft ICU 49
 549      */
 550     UDAT_YEAR_NAME_FIELD = 30,
 551
 552    /**
 553      * Number of FieldPosition and UFieldPosition selectors for
 554      * DateFormat and UDateFormat.
 555      * Valid selectors range from 0 to UDAT_FIELD_COUNT-1.
 556      * This value is subject to change if new fields are defined
 557      * in the future.
 558      * @stable ICU 3.0
 559      */
 560     UDAT_FIELD_COUNT = 31
 561
 562 } UDateFormatField;
 563
 564
 565 /**
 566  * Maps from a UDateFormatField to the corresponding UCalendarDateFields.
 567  * Note: since the mapping is many-to-one, there is no inverse mapping.
 568  * @param field the UDateFormatField.
 569  * @return the UCalendarDateField.  This will be UCAL_FIELD_COUNT in case
 570  * of error (e.g., the input field is UDAT_FIELD_COUNT).
 571  * @stable ICU 4.4
 572  */
 573 U_STABLE UCalendarDateFields U_EXPORT2
 574 udat_toCalendarDateField(UDateFormatField field);
 575
 576
 577 /**
 578  * Open a new UDateFormat for formatting and parsing dates and times.
 579  * A UDateFormat may be used to format dates in calls to {@link #udat_format },
 580  * and to parse dates in calls to {@link #udat_parse }.
 581  * @param timeStyle The style used to format times; one of UDAT_FULL, UDAT_LONG,
 582  * UDAT_MEDIUM, UDAT_SHORT, UDAT_DEFAULT, or UDAT_NONE (relative time styles
 583  * are not currently supported).
 584  * @param dateStyle The style used to format dates; one of UDAT_FULL, UDAT_LONG,
 585  * UDAT_MEDIUM, UDAT_SHORT, UDAT_DEFAULT, UDAT_FULL_RELATIVE, UDAT_LONG_RELATIVE,
 586  * UDAT_MEDIUM_RELATIVE, UDAT_SHORT_RELATIVE, or UDAT_NONE. As currently implemented,
 587  * relative date formatting only affects a limited range of calendar days before or
 588  * after the current date, based on the CLDR &lt;field type="day"&gt;/&lt;relative&gt; data: For
 589  * example, in English, "Yesterday", "Today", and "Tomorrow". Outside of this range,
 590  * dates are formatted using the corresponding non-relative style.
 591  * @param locale The locale specifying the formatting conventions
 592  * @param tzID A timezone ID specifying the timezone to use.  If 0, use
 593  * the default timezone.
 594  * @param tzIDLength The length of tzID, or -1 if null-terminated.
 595  * @param pattern A pattern specifying the format to use.
 596  * @param patternLength The number of characters in the pattern, or -1 if null-terminated.
 597  * @param status A pointer to an UErrorCode to receive any errors
 598  * @return A pointer to a UDateFormat to use for formatting dates and times, or 0 if
 599  * an error occurred.
 600  * @stable ICU 2.0
 601  */
 602 U_STABLE UDateFormat* U_EXPORT2
 603 udat_open(UDateFormatStyle  timeStyle,
 604           UDateFormatStyle  dateStyle,
 605           const char        *locale,
 606           const UChar       *tzID,
 607           int32_t           tzIDLength,
 608           const UChar       *pattern,
 609           int32_t           patternLength,
 610           UErrorCode        *status);
 611
 612
 613 /**
 614 * Close a UDateFormat.
 615 * Once closed, a UDateFormat may no longer be used.
 616 * @param format The formatter to close.
 617 * @stable ICU 2.0
 618 */
 619 U_STABLE void U_EXPORT2
 620 udat_close(UDateFormat* format);
 621
 622 #if U_SHOW_CPLUSPLUS_API
 623
 624 U_NAMESPACE_BEGIN
 625
 626 /**
 627  * \class LocalUDateFormatPointer
 628  * "Smart pointer" class, closes a UDateFormat via udat_close().
 629  * For most methods see the LocalPointerBase base class.
 630  *
 631  * @see LocalPointerBase
 632  * @see LocalPointer
 633  * @stable ICU 4.4
 634  */
 635 U_DEFINE_LOCAL_OPEN_POINTER(LocalUDateFormatPointer, UDateFormat, udat_close);
 636
 637 U_NAMESPACE_END
 638
 639 #endif
 640
 641 /**
 642  * Open a copy of a UDateFormat.
 643  * This function performs a deep copy.
 644  * @param fmt The format to copy
 645  * @param status A pointer to an UErrorCode to receive any errors.
 646  * @return A pointer to a UDateFormat identical to fmt.
 647  * @stable ICU 2.0
 648  */
 649 U_STABLE UDateFormat* U_EXPORT2
 650 udat_clone(const UDateFormat *fmt,
 651        UErrorCode *status);
 652
 653 /**
 654 * Format a date using an UDateFormat.
 655 * The date will be formatted using the conventions specified in {@link #udat_open }
 656 * @param format The formatter to use
 657 * @param dateToFormat The date to format
 658 * @param result A pointer to a buffer to receive the formatted number.
 659 * @param resultLength The maximum size of result.
 660 * @param position A pointer to a UFieldPosition.  On input, position->field
 661 * is read.  On output, position->beginIndex and position->endIndex indicate
 662 * the beginning and ending indices of field number position->field, if such
 663 * a field exists.  This parameter may be NULL, in which case no field
 664 * position data is returned.
 665 * @param status A pointer to an UErrorCode to receive any errors
 666 * @return The total buffer size needed; if greater than resultLength, the output was truncated.
 667 * @see udat_parse
 668 * @see UFieldPosition
 669 * @stable ICU 2.0
 670 */
 671 U_STABLE int32_t U_EXPORT2
 672 udat_format(    const    UDateFormat*    format,
 673                         UDate           dateToFormat,
 674                         UChar*          result,
 675                         int32_t         resultLength,
 676                         UFieldPosition* position,
 677                         UErrorCode*     status);
 678
 679 /**
 680 * Parse a string into an date/time using a UDateFormat.
 681 * The date will be parsed using the conventions specified in {@link #udat_open }.
 682 * <P>
 683 * Note that the normal date formats associated with some calendars - such
 684 * as the Chinese lunar calendar - do not specify enough fields to enable
 685 * dates to be parsed unambiguously. In the case of the Chinese lunar
 686 * calendar, while the year within the current 60-year cycle is specified,
 687 * the number of such cycles since the start date of the calendar (in the
 688 * UCAL_ERA field of the UCalendar object) is not normally part of the format,
 689 * and parsing may assume the wrong era. For cases such as this it is
 690 * recommended that clients parse using udat_parseCalendar with the UCalendar
 691 * passed in set to the current date, or to a date within the era/cycle that
 692 * should be assumed if absent in the format.
 693 *
 694 * @param format The formatter to use.
 695 * @param text The text to parse.
 696 * @param textLength The length of text, or -1 if null-terminated.
 697 * @param parsePos If not 0, on input a pointer to an integer specifying the offset at which
 698 * to begin parsing.  If not 0, on output the offset at which parsing ended.
 699 * @param status A pointer to an UErrorCode to receive any errors
 700 * @return The value of the parsed date/time
 701 * @see udat_format
 702 * @stable ICU 2.0
 703 */
 704 U_STABLE UDate U_EXPORT2
 705 udat_parse(const    UDateFormat*    format,
 706            const    UChar*          text,
 707                     int32_t         textLength,
 708                     int32_t         *parsePos,
 709                     UErrorCode      *status);
 710
 711 /**
 712 * Parse a string into an date/time using a UDateFormat.
 713 * The date will be parsed using the conventions specified in {@link #udat_open }.
 714 * @param format The formatter to use.
 715 * @param calendar A calendar set on input to the date and time to be used for
 716 *                 missing values in the date/time string being parsed, and set
 717 *                 on output to the parsed date/time. When the calendar type is
 718 *                 different from the internal calendar held by the UDateFormat
 719 *                 instance, the internal calendar will be cloned to a work
 720 *                 calendar set to the same milliseconds and time zone as this
 721 *                 calendar parameter, field values will be parsed based on the
 722 *                 work calendar, then the result (milliseconds and time zone)
 723 *                 will be set in this calendar.
 724 * @param text The text to parse.
 725 * @param textLength The length of text, or -1 if null-terminated.
 726 * @param parsePos If not 0, on input a pointer to an integer specifying the offset at which
 727 * to begin parsing.  If not 0, on output the offset at which parsing ended.
 728 * @param status A pointer to an UErrorCode to receive any errors
 729 * @see udat_format
 730 * @stable ICU 2.0
 731 */
 732 U_STABLE void U_EXPORT2
 733 udat_parseCalendar(const    UDateFormat*    format,
 734                             UCalendar*      calendar,
 735                    const    UChar*          text,
 736                             int32_t         textLength,
 737                             int32_t         *parsePos,
 738                             UErrorCode      *status);
 739
 740 /**
 741 * Determine if an UDateFormat will perform lenient parsing.
 742 * With lenient parsing, the parser may use heuristics to interpret inputs that do not
 743 * precisely match the pattern. With strict parsing, inputs must match the pattern.
 744 * @param fmt The formatter to query
 745 * @return TRUE if fmt is set to perform lenient parsing, FALSE otherwise.
 746 * @see udat_setLenient
 747 * @stable ICU 2.0
 748 */
 749 U_STABLE UBool U_EXPORT2
 750 udat_isLenient(const UDateFormat* fmt);
 751
 752 /**
 753 * Specify whether an UDateFormat will perform lenient parsing.
 754 * With lenient parsing, the parser may use heuristics to interpret inputs that do not
 755 * precisely match the pattern. With strict parsing, inputs must match the pattern.
 756 * @param fmt The formatter to set
 757 * @param isLenient TRUE if fmt should perform lenient parsing, FALSE otherwise.
 758 * @see dat_isLenient
 759 * @stable ICU 2.0
 760 */
 761 U_STABLE void U_EXPORT2
 762 udat_setLenient(    UDateFormat*    fmt,
 763                     UBool          isLenient);
 764
 765 /**
 766 * Get the UCalendar associated with an UDateFormat.
 767 * A UDateFormat uses a UCalendar to convert a raw value to, for example,
 768 * the day of the week.
 769 * @param fmt The formatter to query.
 770 * @return A pointer to the UCalendar used by fmt.
 771 * @see udat_setCalendar
 772 * @stable ICU 2.0
 773 */
 774 U_STABLE const UCalendar* U_EXPORT2
 775 udat_getCalendar(const UDateFormat* fmt);
 776
 777 /**
 778 * Set the UCalendar associated with an UDateFormat.
 779 * A UDateFormat uses a UCalendar to convert a raw value to, for example,
 780 * the day of the week.
 781 * @param fmt The formatter to set.
 782 * @param calendarToSet A pointer to an UCalendar to be used by fmt.
 783 * @see udat_setCalendar
 784 * @stable ICU 2.0
 785 */
 786 U_STABLE void U_EXPORT2
 787 udat_setCalendar(            UDateFormat*    fmt,
 788                     const   UCalendar*      calendarToSet);
 789
 790 /**
 791 * Get the UNumberFormat associated with an UDateFormat.
 792 * A UDateFormat uses a UNumberFormat to format numbers within a date,
 793 * for example the day number.
 794 * @param fmt The formatter to query.
 795 * @return A pointer to the UNumberFormat used by fmt to format numbers.
 796 * @see udat_setNumberFormat
 797 * @stable ICU 2.0
 798 */
 799 U_STABLE const UNumberFormat* U_EXPORT2
 800 udat_getNumberFormat(const UDateFormat* fmt);
 801
 802 /**
 803 * Set the UNumberFormat associated with an UDateFormat.
 804 * A UDateFormat uses a UNumberFormat to format numbers within a date,
 805 * for example the day number.
 806 * @param fmt The formatter to set.
 807 * @param numberFormatToSet A pointer to the UNumberFormat to be used by fmt to format numbers.
 808 * @see udat_getNumberFormat
 809 * @stable ICU 2.0
 810 */
 811 U_STABLE void U_EXPORT2
 812 udat_setNumberFormat(            UDateFormat*    fmt,
 813                         const   UNumberFormat*  numberFormatToSet);
 814
 815 /**
 816 * Get a locale for which date/time formatting patterns are available.
 817 * A UDateFormat in a locale returned by this function will perform the correct
 818 * formatting and parsing for the locale.
 819 * @param localeIndex The index of the desired locale.
 820 * @return A locale for which date/time formatting patterns are available, or 0 if none.
 821 * @see udat_countAvailable
 822 * @stable ICU 2.0
 823 */
 824 U_STABLE const char* U_EXPORT2
 825 udat_getAvailable(int32_t localeIndex);
 826
 827 /**
 828 * Determine how many locales have date/time  formatting patterns available.
 829 * This function is most useful as determining the loop ending condition for
 830 * calls to {@link #udat_getAvailable }.
 831 * @return The number of locales for which date/time formatting patterns are available.
 832 * @see udat_getAvailable
 833 * @stable ICU 2.0
 834 */
 835 U_STABLE int32_t U_EXPORT2
 836 udat_countAvailable(void);
 837
 838 /**
 839 * Get the year relative to which all 2-digit years are interpreted.
 840 * For example, if the 2-digit start year is 2100, the year 99 will be
 841 * interpreted as 2199.
 842 * @param fmt The formatter to query.
 843 * @param status A pointer to an UErrorCode to receive any errors
 844 * @return The year relative to which all 2-digit years are interpreted.
 845 * @see udat_Set2DigitYearStart
 846 * @stable ICU 2.0
 847 */
 848 U_STABLE UDate U_EXPORT2
 849 udat_get2DigitYearStart(    const   UDateFormat     *fmt,
 850                                     UErrorCode      *status);
 851
 852 /**
 853 * Set the year relative to which all 2-digit years will be interpreted.
 854 * For example, if the 2-digit start year is 2100, the year 99 will be
 855 * interpreted as 2199.
 856 * @param fmt The formatter to set.
 857 * @param d The year relative to which all 2-digit years will be interpreted.
 858 * @param status A pointer to an UErrorCode to receive any errors
 859 * @see udat_Set2DigitYearStart
 860 * @stable ICU 2.0
 861 */
 862 U_STABLE void U_EXPORT2
 863 udat_set2DigitYearStart(    UDateFormat     *fmt,
 864                             UDate           d,
 865                             UErrorCode      *status);
 866
 867 /**
 868 * Extract the pattern from a UDateFormat.
 869 * The pattern will follow the pattern syntax rules.
 870 * @param fmt The formatter to query.
 871 * @param localized TRUE if the pattern should be localized, FALSE otherwise.
 872 * @param result A pointer to a buffer to receive the pattern.
 873 * @param resultLength The maximum size of result.
 874 * @param status A pointer to an UErrorCode to receive any errors
 875 * @return The total buffer size needed; if greater than resultLength, the output was truncated.
 876 * @see udat_applyPattern
 877 * @stable ICU 2.0
 878 */
 879 U_STABLE int32_t U_EXPORT2
 880 udat_toPattern(    const   UDateFormat     *fmt,
 881                         UBool          localized,
 882                         UChar           *result,
 883                         int32_t         resultLength,
 884                         UErrorCode      *status);
 885
 886 /**
 887 * Set the pattern used by an UDateFormat.
 888 * The pattern should follow the pattern syntax rules.
 889 * @param format The formatter to set.
 890 * @param localized TRUE if the pattern is localized, FALSE otherwise.
 891 * @param pattern The new pattern
 892 * @param patternLength The length of pattern, or -1 if null-terminated.
 893 * @see udat_toPattern
 894 * @stable ICU 2.0
 895 */
 896 U_STABLE void U_EXPORT2
 897 udat_applyPattern(            UDateFormat     *format,
 898                             UBool          localized,
 899                     const   UChar           *pattern,
 900                             int32_t         patternLength);
 901
 902 /**
 903  * The possible types of date format symbols
 904  * @stable ICU 2.6
 905  */
 906 typedef enum UDateFormatSymbolType {
 907     /** The era names, for example AD */
 908     UDAT_ERAS,
 909     /** The month names, for example February */
 910     UDAT_MONTHS,
 911     /** The short month names, for example Feb. */
 912     UDAT_SHORT_MONTHS,
 913     /** The weekday names, for example Monday */
 914     UDAT_WEEKDAYS,
 915     /** The short weekday names, for example Mon. */
 916     UDAT_SHORT_WEEKDAYS,
 917     /** The AM/PM names, for example AM */
 918     UDAT_AM_PMS,
 919     /** The localized characters */
 920     UDAT_LOCALIZED_CHARS,
 921     /** The long era names, for example Anno Domini */
 922     UDAT_ERA_NAMES,
 923     /** The narrow month names, for example F */
 924     UDAT_NARROW_MONTHS,
 925     /** The narrow weekday names, for example N */
 926     UDAT_NARROW_WEEKDAYS,
 927     /** Standalone context versions of months */
 928     UDAT_STANDALONE_MONTHS,
 929     UDAT_STANDALONE_SHORT_MONTHS,
 930     UDAT_STANDALONE_NARROW_MONTHS,
 931     /** Standalone context versions of weekdays */
 932     UDAT_STANDALONE_WEEKDAYS,
 933     UDAT_STANDALONE_SHORT_WEEKDAYS,
 934     UDAT_STANDALONE_NARROW_WEEKDAYS,
 935     /** The quarters, for example 1st Quarter */
 936     UDAT_QUARTERS,
 937     /** The short quarter names, for example Q1 */
 938     UDAT_SHORT_QUARTERS,
 939     /** Standalone context versions of quarters */
 940     UDAT_STANDALONE_QUARTERS,
 941     UDAT_STANDALONE_SHORT_QUARTERS
 942
 943 } UDateFormatSymbolType;
 944
 945 struct UDateFormatSymbols;
 946 /** Date format symbols.
 947  *  For usage in C programs.
 948  *  @stable ICU 2.6
 949  */
 950 typedef struct UDateFormatSymbols UDateFormatSymbols;
 951
 952 /**
 953 * Get the symbols associated with an UDateFormat.
 954 * The symbols are what a UDateFormat uses to represent locale-specific data,
 955 * for example month or day names.
 956 * @param fmt The formatter to query.
 957 * @param type The type of symbols to get.  One of UDAT_ERAS, UDAT_MONTHS, UDAT_SHORT_MONTHS,
 958 * UDAT_WEEKDAYS, UDAT_SHORT_WEEKDAYS, UDAT_AM_PMS, or UDAT_LOCALIZED_CHARS
 959 * @param symbolIndex The desired symbol of type type.
 960 * @param result A pointer to a buffer to receive the pattern.
 961 * @param resultLength The maximum size of result.
 962 * @param status A pointer to an UErrorCode to receive any errors
 963 * @return The total buffer size needed; if greater than resultLength, the output was truncated.
 964 * @see udat_countSymbols
 965 * @see udat_setSymbols
 966 * @stable ICU 2.0
 967 */
 968 U_STABLE int32_t U_EXPORT2
 969 udat_getSymbols(const   UDateFormat             *fmt,
 970                         UDateFormatSymbolType   type,
 971                         int32_t                 symbolIndex,
 972                         UChar                   *result,
 973                         int32_t                 resultLength,
 974                         UErrorCode              *status);
 975
 976 /**
 977 * Count the number of particular symbols for an UDateFormat.
 978 * This function is most useful as for detemining the loop termination condition
 979 * for calls to {@link #udat_getSymbols }.
 980 * @param fmt The formatter to query.
 981 * @param type The type of symbols to count.  One of UDAT_ERAS, UDAT_MONTHS, UDAT_SHORT_MONTHS,
 982 * UDAT_WEEKDAYS, UDAT_SHORT_WEEKDAYS, UDAT_AM_PMS, or UDAT_LOCALIZED_CHARS
 983 * @return The number of symbols of type type.
 984 * @see udat_getSymbols
 985 * @see udat_setSymbols
 986 * @stable ICU 2.0
 987 */
 988 U_STABLE int32_t U_EXPORT2
 989 udat_countSymbols(    const    UDateFormat                *fmt,
 990                             UDateFormatSymbolType    type);
 991
 992 /**
 993 * Set the symbols associated with an UDateFormat.
 994 * The symbols are what a UDateFormat uses to represent locale-specific data,
 995 * for example month or day names.
 996 * @param format The formatter to set
 997 * @param type The type of symbols to set.  One of UDAT_ERAS, UDAT_MONTHS, UDAT_SHORT_MONTHS,
 998 * UDAT_WEEKDAYS, UDAT_SHORT_WEEKDAYS, UDAT_AM_PMS, or UDAT_LOCALIZED_CHARS
 999 * @param symbolIndex The index of the symbol to set of type type.
1000 * @param value The new value
1001 * @param valueLength The length of value, or -1 if null-terminated
1002 * @param status A pointer to an UErrorCode to receive any errors
1003 * @see udat_getSymbols
1004 * @see udat_countSymbols
1005 * @stable ICU 2.0
1006 */
1007 U_STABLE void U_EXPORT2
1008 udat_setSymbols(    UDateFormat             *format,
1009                     UDateFormatSymbolType   type,
1010                     int32_t                 symbolIndex,
1011                     UChar                   *value,
1012                     int32_t                 valueLength,
1013                     UErrorCode              *status);
1014
1015 /**
1016  * Get the locale for this date format object.
1017  * You can choose between valid and actual locale.
1018  * @param fmt The formatter to get the locale from
1019  * @param type type of the locale we're looking for (valid or actual)
1020  * @param status error code for the operation
1021  * @return the locale name
1022  * @stable ICU 2.8
1023  */
1024 U_STABLE const char* U_EXPORT2
1025 udat_getLocaleByType(const UDateFormat *fmt,
1026                      ULocDataLocaleType type,
1027                      UErrorCode* status);
1028
1029 #ifndef U_HIDE_DRAFT_API
1030 /**
1031  * Set the formatter's default value for a particular context type,
1032  * such as UDAT_CAPITALIZATION.
1033  * @param fmt The formatter for which to set a context type's default value.
1034  * @param type The context type for which the default value should be set.
1035  * @param value The default value to set for the specified context type.
1036  * @param status A pointer to an UErrorCode to receive any errors
1037  * @draft ICU 49
1038  */
1039 U_DRAFT void U_EXPORT2
1040 udat_setDefaultContext(UDateFormat* fmt,
1041                        UDateFormatContextType type, UDateFormatContextValue value,
1042                        UErrorCode* status);
1043
1044 /**
1045  * Get the formatter's default value for a particular context type,
1046  * such as UDAT_CAPITALIZATION.
1047  * @param fmt The formatter from which to get a context type's default value.
1048  * @param type The context type for which the default value should be obtained.
1049  * @param status A pointer to an UErrorCode to receive any errors
1050  * @return The current default value for the specified context type.
1051  * @draft ICU 49
1052  */
1053 U_DRAFT int32_t U_EXPORT2
1054 udat_getDefaultContext(UDateFormat* fmt,
1055                        UDateFormatContextType type,
1056                        UErrorCode* status);
1057 #endif  /* U_HIDE_DRAFT_API */
1058
1059 #ifndef U_HIDE_INTERNAL_API
1060 /**
1061 * Extract the date pattern from a UDateFormat set for relative date formatting.
1062 * The pattern will follow the pattern syntax rules.
1063 * @param fmt The formatter to query.
1064 * @param result A pointer to a buffer to receive the pattern.
1065 * @param resultLength The maximum size of result.
1066 * @param status A pointer to a UErrorCode to receive any errors
1067 * @return The total buffer size needed; if greater than resultLength, the output was truncated.
1068 * @see udat_applyPatternRelative
1069 * @internal ICU 4.2 technology preview
1070 */
1071 U_INTERNAL int32_t U_EXPORT2
1072 udat_toPatternRelativeDate(const UDateFormat *fmt,
1073                            UChar             *result,
1074                            int32_t           resultLength,
1075                            UErrorCode        *status);
1076
1077 /**
1078 * Extract the time pattern from a UDateFormat set for relative date formatting.
1079 * The pattern will follow the pattern syntax rules.
1080 * @param fmt The formatter to query.
1081 * @param result A pointer to a buffer to receive the pattern.
1082 * @param resultLength The maximum size of result.
1083 * @param status A pointer to a UErrorCode to receive any errors
1084 * @return The total buffer size needed; if greater than resultLength, the output was truncated.
1085 * @see udat_applyPatternRelative
1086 * @internal ICU 4.2 technology preview
1087 */
1088 U_INTERNAL int32_t U_EXPORT2
1089 udat_toPatternRelativeTime(const UDateFormat *fmt,
1090                            UChar             *result,
1091                            int32_t           resultLength,
1092                            UErrorCode        *status);
1093
1094 /**
1095 * Set the date & time patterns used by a UDateFormat set for relative date formatting.
1096 * The patterns should follow the pattern syntax rules.
1097 * @param format The formatter to set.
1098 * @param datePattern The new date pattern
1099 * @param datePatternLength The length of datePattern, or -1 if null-terminated.
1100 * @param timePattern The new time pattern
1101 * @param timePatternLength The length of timePattern, or -1 if null-terminated.
1102 * @param status A pointer to a UErrorCode to receive any errors
1103 * @see udat_toPatternRelativeDate, udat_toPatternRelativeTime
1104 * @internal ICU 4.2 technology preview
1105 */
1106 U_INTERNAL void U_EXPORT2
1107 udat_applyPatternRelative(UDateFormat *format,
1108                           const UChar *datePattern,
1109                           int32_t     datePatternLength,
1110                           const UChar *timePattern,
1111                           int32_t     timePatternLength,
1112                           UErrorCode  *status);
1113 #endif  /* U_HIDE_INTERNAL_API */
1114
1115 /**
1116  * @internal
1117  * @see udat_open
1118  */
1119 typedef UDateFormat* (U_EXPORT2 *UDateFormatOpener) (UDateFormatStyle  timeStyle,
1120                                                     UDateFormatStyle  dateStyle,
1121                                                     const char        *locale,
1122                                                     const UChar       *tzID,
1123                                                     int32_t           tzIDLength,
1124                                                     const UChar       *pattern,
1125                                                     int32_t           patternLength,
1126                                                     UErrorCode        *status);
1127
1128 /**
1129  * Register a provider factory
1130  * @internal ICU 49
1131  */
1132 U_INTERNAL void U_EXPORT2
1133 udat_registerOpener(UDateFormatOpener opener, UErrorCode *status);
1134
1135 /**
1136  * Un-Register a provider factory
1137  * @internal ICU 49
1138  */
1139 U_INTERNAL UDateFormatOpener U_EXPORT2
1140 udat_unregisterOpener(UDateFormatOpener opener, UErrorCode *status);
1141
1142
1143 #endif /* #if !UCONFIG_NO_FORMATTING */
1144
1145 #endif