icuSources/i18n/unicode/datefmt.h

   1 /*
   2 ********************************************************************************
   3 *   Copyright (C) 1997-2004, 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 formatting
  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 U_NAMESPACE_BEGIN
  33
  34 class TimeZone;
  35
  36 /**
  37  * DateFormat is an abstract class for a family of classes that convert dates and
  38  * times from their internal representations to textual form and back again in a
  39  * language-independent manner. Converting from the internal representation (milliseconds
  40  * since midnight, January 1, 1970) to text is known as "formatting," and converting
  41  * from text to millis is known as "parsing."  We currently define only one concrete
  42  * subclass of DateFormat: SimpleDateFormat, which can handle pretty much all normal
  43  * date formatting and parsing actions.
  44  * <P>
  45  * DateFormat helps you to format and parse dates for any locale. Your code can
  46  * be completely independent of the locale conventions for months, days of the
  47  * week, or even the calendar format: lunar vs. solar.
  48  * <P>
  49  * To format a date for the current Locale, use one of the static factory
  50  * methods:
  51  * <pre>
  52  * \code
  53  *      DateFormat* dfmt = DateFormat::createDateInstance();
  54  *      UDate myDate = Calendar::getNow();
  55  *      UnicodeString myString;
  56  *      myString = dfmt->format( myDate, myString );
  57  * \endcode
  58  * </pre>
  59  * If you are formatting multiple numbers, it is more efficient to get the
  60  * format and use it multiple times so that the system doesn't have to fetch the
  61  * information about the local language and country conventions multiple times.
  62  * <pre>
  63  * \code
  64  *      DateFormat* df = DateFormat::createDateInstance();
  65  *      UnicodeString myString;
  66  *      UDate myDateArr[] = { 0.0, 100000000.0, 2000000000.0 }; // test values
  67  *      for (int32_t i = 0; i < 3; ++i) {
  68  *          myString.remove();
  69  *          cout << df->format( myDateArr[i], myString ) << endl;
  70  *      }
  71  * \endcode
  72  * </pre>
  73  * To get specific fields of a date, you can use UFieldPosition to
  74  * get specific fields.
  75  * <pre>
  76  * \code
  77  *      DateFormat* dfmt = DateFormat::createDateInstance();
  78  *      FieldPosition pos(DateFormat::YEAR_FIELD);
  79  *      UnicodeString myString;
  80  *      myString = dfmt->format( myDate, myString );
  81  *      cout << myString << endl;
  82  *      cout << pos.getBeginIndex() << "," << pos. getEndIndex() << endl;
  83  * \endcode
  84  * </pre>
  85  * To format a date for a different Locale, specify it in the call to
  86  * createDateInstance().
  87  * <pre>
  88  * \code
  89  *       DateFormat* df =
  90  *           DateFormat::createDateInstance( DateFormat::SHORT, Locale::getFrance());
  91  * \endcode
  92  * </pre>
  93  * You can use a DateFormat to parse also.
  94  * <pre>
  95  * \code
  96  *       UErrorCode status = U_ZERO_ERROR;
  97  *       UDate myDate = df->parse(myString, status);
  98  * \endcode
  99  * </pre>
 100  * Use createDateInstance() to produce the normal date format for that country.
 101  * There are other static factory methods available. Use createTimeInstance()
 102  * to produce the normal time format for that country. Use createDateTimeInstance()
 103  * to produce a DateFormat that formats both date and time. You can pass in
 104  * different options to these factory methods to control the length of the
 105  * result; from SHORT to MEDIUM to LONG to FULL. The exact result depends on the
 106  * locale, but generally:
 107  * <ul type=round>
 108  *   <li>   SHORT is completely numeric, such as 12/13/52 or 3:30pm
 109  *   <li>   MEDIUM is longer, such as Jan 12, 1952
 110  *   <li>   LONG is longer, such as January 12, 1952 or 3:30:32pm
 111  *   <li>   FULL is pretty completely specified, such as
 112  *          Tuesday, April 12, 1952 AD or 3:30:42pm PST.
 113  * </ul>
 114  * You can also set the time zone on the format if you wish. If you want even
 115  * more control over the format or parsing, (or want to give your users more
 116  * control), you can try casting the DateFormat you get from the factory methods
 117  * to a SimpleDateFormat. This will work for the majority of countries; just
 118  * remember to chck getDynamicClassID() before carrying out the cast.
 119  * <P>
 120  * You can also use forms of the parse and format methods with ParsePosition and
 121  * FieldPosition to allow you to
 122  * <ul type=round>
 123  *   <li>   Progressively parse through pieces of a string.
 124  *   <li>   Align any particular field, or find out where it is for selection
 125  *          on the screen.
 126  * </ul>
 127  *
 128  * <p><em>User subclasses are not supported.</em> While clients may write
 129  * subclasses, such code will not necessarily work and will not be
 130  * guaranteed to work stably from release to release.
 131  */
 132 class U_I18N_API DateFormat : public Format {
 133 public:
 134
 135     /**
 136      * Constants for various style patterns. These reflect the order of items in
 137      * the DateTimePatterns resource. There are 4 time patterns, 4 date patterns,
 138      * and then the date-time pattern. Each block of 4 values in the resource occurs
 139      * in the order full, long, medium, short.
 140      * @stable ICU 2.4
 141      */
 142     enum EStyle
 143     {
 144         kNone   = -1,
 145
 146         kFull   = 0,
 147         kLong   = 1,
 148         kMedium = 2,
 149         kShort  = 3,
 150
 151         kDateOffset   = kShort + 1,
 152      // kFull   + kDateOffset = 4
 153      // kLong   + kDateOffset = 5
 154      // kMedium + kDateOffset = 6
 155      // kShort  + kDateOffset = 7
 156
 157         kDateTime             = 8,
 158
 159         kDefault      = kMedium,
 160
 161
 162
 163     /**
 164      * These constants are provided for backwards compatibility only.
 165      * Please use the C++ style constants defined above.
 166      */
 167         FULL        = kFull,
 168         LONG        = kLong,
 169         MEDIUM        = kMedium,
 170         SHORT        = kShort,
 171         DEFAULT        = kDefault,
 172         DATE_OFFSET    = kDateOffset,
 173         NONE        = kNone,
 174         DATE_TIME    = kDateTime
 175     };
 176
 177     /**
 178      * Destructor.
 179      * @stable ICU 2.0
 180      */
 181     virtual ~DateFormat();
 182
 183     /**
 184      * Equality operator.  Returns true if the two formats have the same behavior.
 185      * @stable ICU 2.0
 186      */
 187     virtual UBool operator==(const Format&) const;
 188
 189     /**
 190      * Format an object to produce a string. This method handles Formattable
 191      * objects with a UDate type. If a the Formattable object type is not a Date,
 192      * then it returns a failing UErrorCode.
 193      *
 194      * @param obj       The object to format. Must be a Date.
 195      * @param appendTo  Output parameter to receive result.
 196      *                  Result is appended to existing contents.
 197      * @param pos       On input: an alignment field, if desired.
 198      *                  On output: the offsets of the alignment field.
 199      * @param status    Output param filled with success/failure status.
 200      * @return          Reference to 'appendTo' parameter.
 201      * @stable ICU 2.0
 202      */
 203     virtual UnicodeString& format(const Formattable& obj,
 204                                   UnicodeString& appendTo,
 205                                   FieldPosition& pos,
 206                                   UErrorCode& status) const;
 207
 208     /**
 209      * Formats a date into a date/time string. This is an abstract method which
 210      * concrete subclasses must implement.
 211      * <P>
 212      * On input, the FieldPosition parameter may have its "field" member filled with
 213      * an enum value specifying a field.  On output, the FieldPosition will be filled
 214      * in with the text offsets for that field.
 215      * <P> For example, given a time text
 216      * "1996.07.10 AD at 15:08:56 PDT", if the given fieldPosition.field is
 217      * UDAT_YEAR_FIELD, the offsets fieldPosition.beginIndex and
 218      * statfieldPositionus.getEndIndex will be set to 0 and 4, respectively.
 219      * <P> Notice
 220      * that if the same time field appears more than once in a pattern, the status will
 221      * be set for the first occurence of that time field. For instance,
 222      * formatting a UDate to the time string "1 PM PDT (Pacific Daylight Time)"
 223      * using the pattern "h a z (zzzz)" and the alignment field
 224      * DateFormat::TIMEZONE_FIELD, the offsets fieldPosition.beginIndex and
 225      * fieldPosition.getEndIndex will be set to 5 and 8, respectively, for the first
 226      * occurence of the timezone pattern character 'z'.
 227      *
 228      * @param cal           Calendar set to the date and time to be formatted
 229      *                      into a date/time string.
 230      * @param appendTo      Output parameter to receive result.
 231      *                      Result is appended to existing contents.
 232      * @param fieldPosition On input: an alignment field, if desired (see examples above)
 233      *                      On output: the offsets of the alignment field (see examples above)
 234      * @return              Reference to 'appendTo' parameter.
 235      * @stable ICU 2.1
 236      */
 237     virtual UnicodeString& format(  Calendar& cal,
 238                                     UnicodeString& appendTo,
 239                                     FieldPosition& fieldPosition) const = 0;
 240
 241     /**
 242      * Formats a UDate into a date/time string.
 243      * <P>
 244      * On input, the FieldPosition parameter may have its "field" member filled with
 245      * an enum value specifying a field.  On output, the FieldPosition will be filled
 246      * in with the text offsets for that field.
 247      * <P> For example, given a time text
 248      * "1996.07.10 AD at 15:08:56 PDT", if the given fieldPosition.field is
 249      * UDAT_YEAR_FIELD, the offsets fieldPosition.beginIndex and
 250      * statfieldPositionus.getEndIndex will be set to 0 and 4, respectively.
 251      * <P> Notice
 252      * that if the same time field appears more than once in a pattern, the status will
 253      * be set for the first occurence of that time field. For instance,
 254      * formatting a UDate to the time string "1 PM PDT (Pacific Daylight Time)"
 255      * using the pattern "h a z (zzzz)" and the alignment field
 256      * DateFormat::TIMEZONE_FIELD, the offsets fieldPosition.beginIndex and
 257      * fieldPosition.getEndIndex will be set to 5 and 8, respectively, for the first
 258      * occurence of the timezone pattern character 'z'.
 259      *
 260      * @param date          UDate to be formatted into a date/time string.
 261      * @param appendTo      Output parameter to receive result.
 262      *                      Result is appended to existing contents.
 263      * @param fieldPosition On input: an alignment field, if desired (see examples above)
 264      *                      On output: the offsets of the alignment field (see examples above)
 265      * @return              Reference to 'appendTo' parameter.
 266      * @stable ICU 2.0
 267      */
 268     UnicodeString& format(  UDate date,
 269                             UnicodeString& appendTo,
 270                             FieldPosition& fieldPosition) const;
 271
 272     /**
 273      * Formats a UDate into a date/time string. If there is a problem, you won't
 274      * know, using this method. Use the overloaded format() method which takes a
 275      * FieldPosition& to detect formatting problems.
 276      *
 277      * @param date      The UDate value to be formatted into a string.
 278      * @param appendTo  Output parameter to receive result.
 279      *                  Result is appended to existing contents.
 280      * @return          Reference to 'appendTo' parameter.
 281      * @stable ICU 2.0
 282      */
 283     UnicodeString& format(UDate date, UnicodeString& appendTo) const;
 284
 285     /**
 286      * Redeclared Format method.
 287      *
 288      * @param obj       The object to be formatted into a string.
 289      * @param appendTo  Output parameter to receive result.
 290      *                  Result is appended to existing contents.
 291      * @param status    Output param filled with success/failure status.
 292      * @return          Reference to 'appendTo' parameter.
 293      * @stable ICU 2.0
 294      */
 295     UnicodeString& format(const Formattable& obj,
 296                           UnicodeString& appendTo,
 297                           UErrorCode& status) const;
 298
 299     /**
 300      * Parse a date/time string.
 301      *
 302      * @param text      The string to be parsed into a UDate value.
 303      * @param status    Output param to be set to success/failure code. If
 304      *                  'text' cannot be parsed, it will be set to a failure
 305      *                  code.
 306      * @result          The parsed UDate value, if successful.
 307      * @stable ICU 2.0
 308      */
 309     virtual UDate parse( const UnicodeString& text,
 310                         UErrorCode& status) const;
 311
 312     /**
 313      * Parse a date/time string beginning at the given parse position. For
 314      * example, a time text "07/10/96 4:5 PM, PDT" will be parsed into a Date
 315      * that is equivalent to Date(837039928046).
 316      * <P>
 317      * By default, parsing is lenient: If the input is not in the form used by
 318      * this object's format method but can still be parsed as a date, then the
 319      * parse succeeds. Clients may insist on strict adherence to the format by
 320      * calling setLenient(false).
 321      *
 322      * @see DateFormat::setLenient(boolean)
 323      *
 324      * @param text  The date/time string to be parsed
 325      * @param cal   a Calendar set to the date and time to be formatted
 326      *              into a date/time string.
 327      * @param pos   On input, the position at which to start parsing; on
 328      *              output, the position at which parsing terminated, or the
 329      *              start position if the parse failed.
 330      * @return      A valid UDate if the input could be parsed.
 331      * @stable ICU 2.1
 332      */
 333     virtual void parse( const UnicodeString& text,
 334                         Calendar& cal,
 335                         ParsePosition& pos) const = 0;
 336
 337     /**
 338      * Parse a date/time string beginning at the given parse position. For
 339      * example, a time text "07/10/96 4:5 PM, PDT" will be parsed into a Date
 340      * that is equivalent to Date(837039928046).
 341      * <P>
 342      * By default, parsing is lenient: If the input is not in the form used by
 343      * this object's format method but can still be parsed as a date, then the
 344      * parse succeeds. Clients may insist on strict adherence to the format by
 345      * calling setLenient(false).
 346      *
 347      * @see DateFormat::setLenient(boolean)
 348      *
 349      * @param text  The date/time string to be parsed
 350      * @param pos   On input, the position at which to start parsing; on
 351      *              output, the position at which parsing terminated, or the
 352      *              start position if the parse failed.
 353      * @return      A valid UDate if the input could be parsed.
 354      * @stable ICU 2.0
 355      */
 356     UDate parse( const UnicodeString& text,
 357                  ParsePosition& pos) const;
 358
 359     /**
 360      * Parse a string to produce an object. This methods handles parsing of
 361      * date/time strings into Formattable objects with UDate types.
 362      * <P>
 363      * Before calling, set parse_pos.index to the offset you want to start
 364      * parsing at in the source. After calling, parse_pos.index is the end of
 365      * the text you parsed. If error occurs, index is unchanged.
 366      * <P>
 367      * When parsing, leading whitespace is discarded (with a successful parse),
 368      * while trailing whitespace is left as is.
 369      * <P>
 370      * See Format::parseObject() for more.
 371      *
 372      * @param source    The string to be parsed into an object.
 373      * @param result    Formattable to be set to the parse result.
 374      *                  If parse fails, return contents are undefined.
 375      * @param parse_pos The position to start parsing at. Upon return
 376      *                  this param is set to the position after the
 377      *                  last character successfully parsed. If the
 378      *                  source is not parsed successfully, this param
 379      *                  will remain unchanged.
 380      * @return          A newly created Formattable* object, or NULL
 381      *                  on failure.  The caller owns this and should
 382      *                  delete it when done.
 383      * @stable ICU 2.0
 384      */
 385     virtual void parseObject(const UnicodeString& source,
 386                              Formattable& result,
 387                              ParsePosition& parse_pos) const;
 388
 389     /**
 390      * Create a default date/time formatter that uses the SHORT style for both
 391      * the date and the time.
 392      *
 393      * @return A date/time formatter which the caller owns.
 394      * @stable ICU 2.0
 395      */
 396     static DateFormat* U_EXPORT2 createInstance(void);
 397
 398     /**
 399      * Creates a time formatter with the given formatting style for the given
 400      * locale.
 401      *
 402      * @param style     The given formatting style. For example,
 403      *                  SHORT for "h:mm a" in the US locale.
 404      * @param aLocale   The given locale.
 405      * @return          A time formatter which the caller owns.
 406      * @stable ICU 2.0
 407      */
 408     static DateFormat* U_EXPORT2 createTimeInstance(EStyle style = kDefault,
 409                                           const Locale& aLocale = Locale::getDefault());
 410
 411     /**
 412      * Creates a date formatter with the given formatting style for the given
 413      * const locale.
 414      *
 415      * @param style     The given formatting style. For example,
 416      *                  SHORT for "M/d/yy" in the US locale.
 417      * @param aLocale   The given locale.
 418      * @return          A date formatter which the caller owns.
 419      * @stable ICU 2.0
 420      */
 421     static DateFormat* U_EXPORT2 createDateInstance(EStyle style = kDefault,
 422                                           const Locale& aLocale = Locale::getDefault());
 423
 424     /**
 425      * Creates a date/time formatter with the given formatting styles for the
 426      * given locale.
 427      *
 428      * @param dateStyle The given formatting style for the date portion of the result.
 429      *                  For example, SHORT for "M/d/yy" in the US locale.
 430      * @param timeStyle The given formatting style for the time portion of the result.
 431      *                  For example, SHORT for "h:mm a" in the US locale.
 432      * @param aLocale   The given locale.
 433      * @return          A date/time formatter which the caller owns.
 434      * @stable ICU 2.0
 435      */
 436     static DateFormat* U_EXPORT2 createDateTimeInstance(EStyle dateStyle = kDefault,
 437                                               EStyle timeStyle = kDefault,
 438                                               const Locale& aLocale = Locale::getDefault());
 439
 440     /**
 441      * Gets the set of locales for which DateFormats are installed.
 442      * @param count Filled in with the number of locales in the list that is returned.
 443      * @return the set of locales for which DateFormats are installed.  The caller
 444      *  does NOT own this list and must not delete it.
 445      * @stable ICU 2.0
 446      */
 447     static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);
 448
 449     /**
 450      * Returns true if the formatter is set for lenient parsing.
 451      * @stable ICU 2.0
 452      */
 453     virtual UBool isLenient(void) const;
 454
 455     /**
 456      * Specify whether or not date/time parsing is to be lenient. With lenient
 457      * parsing, the parser may use heuristics to interpret inputs that do not
 458      * precisely match this object's format. With strict parsing, inputs must
 459      * match this object's format.
 460      *
 461      * @param lenient  True specifies date/time interpretation to be lenient.
 462      * @see Calendar::setLenient
 463      * @stable ICU 2.0
 464      */
 465     virtual void setLenient(UBool lenient);
 466
 467     /**
 468      * Gets the calendar associated with this date/time formatter.
 469      * @return the calendar associated with this date/time formatter.
 470      * @stable ICU 2.0
 471      */
 472     virtual const Calendar* getCalendar(void) const;
 473
 474     /**
 475      * Set the calendar to be used by this date format. Initially, the default
 476      * calendar for the specified or default locale is used.  The caller should
 477      * not delete the Calendar object after it is adopted by this call.
 478      * Adopting a new calendar will change to the default symbols.
 479      *
 480      * @param calendarToAdopt    Calendar object to be adopted.
 481      * @stable ICU 2.0
 482      */
 483     virtual void adoptCalendar(Calendar* calendarToAdopt);
 484
 485     /**
 486      * Set the calendar to be used by this date format. Initially, the default
 487      * calendar for the specified or default locale is used.
 488      *
 489      * @param newCalendar Calendar object to be set.
 490      * @stable ICU 2.0
 491      */
 492     virtual void setCalendar(const Calendar& newCalendar);
 493
 494
 495     /**
 496      * Gets the number formatter which this date/time formatter uses to format
 497      * and parse the numeric portions of the pattern.
 498      * @return the number formatter which this date/time formatter uses.
 499      * @stable ICU 2.0
 500      */
 501     virtual const NumberFormat* getNumberFormat(void) const;
 502
 503     /**
 504      * Allows you to set the number formatter.  The caller should
 505      * not delete the NumberFormat object after it is adopted by this call.
 506      * @param formatToAdopt     NumberFormat object to be adopted.
 507      * @stable ICU 2.0
 508      */
 509     virtual void adoptNumberFormat(NumberFormat* formatToAdopt);
 510
 511     /**
 512      * Allows you to set the number formatter.
 513      * @param newNumberFormat  NumberFormat object to be set.
 514      * @stable ICU 2.0
 515      */
 516     virtual void setNumberFormat(const NumberFormat& newNumberFormat);
 517
 518     /**
 519      * Returns a reference to the TimeZone used by this DateFormat's calendar.
 520      * @return the time zone associated with the calendar of DateFormat.
 521      * @stable ICU 2.0
 522      */
 523     virtual const TimeZone& getTimeZone(void) const;
 524
 525     /**
 526      * Sets the time zone for the calendar of this DateFormat object. The caller
 527      * no longer owns the TimeZone object and should not delete it after this call.
 528      * @param zoneToAdopt the TimeZone to be adopted.
 529      * @stable ICU 2.0
 530      */
 531     virtual void adoptTimeZone(TimeZone* zoneToAdopt);
 532
 533     /**
 534      * Sets the time zone for the calendar of this DateFormat object.
 535      * @param zone the new time zone.
 536      * @stable ICU 2.0
 537      */
 538     virtual void setTimeZone(const TimeZone& zone);
 539
 540 protected:
 541     /**
 542      * Default constructor.  Creates a DateFormat with no Calendar or NumberFormat
 543      * associated with it.  This constructor depends on the subclasses to fill in
 544      * the calendar and numberFormat fields.
 545      * @stable ICU 2.0
 546      */
 547     DateFormat();
 548
 549     /**
 550      * Copy constructor.
 551      * @stable ICU 2.0
 552      */
 553     DateFormat(const DateFormat&);
 554
 555     /**
 556      * Default assignment operator.
 557      * @stable ICU 2.0
 558      */
 559     DateFormat& operator=(const DateFormat&);
 560
 561     /**
 562      * The calendar that DateFormat uses to produce the time field values needed
 563      * to implement date/time formatting. Subclasses should generally initialize
 564      * this to the default calendar for the locale associated with this DateFormat.
 565      * @stable ICU 2.4
 566      */
 567     Calendar* fCalendar;
 568
 569     /**
 570      * The number formatter that DateFormat uses to format numbers in dates and
 571      * times. Subclasses should generally initialize this to the default number
 572      * format for the locale associated with this DateFormat.
 573      * @stable ICU 2.4
 574      */
 575     NumberFormat* fNumberFormat;
 576
 577 private:
 578     /**
 579      * Gets the date/time formatter with the given formatting styles for the
 580      * given locale.
 581      * @param dateStyle the given date formatting style.
 582      * @param timeStyle the given time formatting style.
 583      * @param inLocale the given locale.
 584      * @return a date/time formatter, or 0 on failure.
 585      */
 586     static DateFormat* U_EXPORT2 create(EStyle timeStyle, EStyle dateStyle, const Locale&);
 587
 588 public:
 589     /**
 590      * Field selector for FieldPosition for DateFormat fields.
 591      * @obsolete ICU 3.4 use UDateFormatField instead, since this API will be
 592      * removed in that release
 593      */
 594     enum EField
 595     {
 596         // Obsolete; use UDateFormatField instead
 597         kEraField = UDAT_ERA_FIELD,
 598         kYearField = UDAT_YEAR_FIELD,
 599         kMonthField = UDAT_MONTH_FIELD,
 600         kDateField = UDAT_DATE_FIELD,
 601         kHourOfDay1Field = UDAT_HOUR_OF_DAY1_FIELD,
 602         kHourOfDay0Field = UDAT_HOUR_OF_DAY0_FIELD,
 603         kMinuteField = UDAT_MINUTE_FIELD,
 604         kSecondField = UDAT_SECOND_FIELD,
 605         kMillisecondField = UDAT_FRACTIONAL_SECOND_FIELD,
 606         kDayOfWeekField = UDAT_DAY_OF_WEEK_FIELD,
 607         kDayOfYearField = UDAT_DAY_OF_YEAR_FIELD,
 608         kDayOfWeekInMonthField = UDAT_DAY_OF_WEEK_IN_MONTH_FIELD,
 609         kWeekOfYearField = UDAT_WEEK_OF_YEAR_FIELD,
 610         kWeekOfMonthField = UDAT_WEEK_OF_MONTH_FIELD,
 611         kAmPmField = UDAT_AM_PM_FIELD,
 612         kHour1Field = UDAT_HOUR1_FIELD,
 613         kHour0Field = UDAT_HOUR0_FIELD,
 614         kTimezoneField = UDAT_TIMEZONE_FIELD,
 615         kYearWOYField = UDAT_YEAR_WOY_FIELD,
 616         kDOWLocalField = UDAT_DOW_LOCAL_FIELD,
 617         kExtendedYearField = UDAT_EXTENDED_YEAR_FIELD,
 618         kJulianDayField = UDAT_JULIAN_DAY_FIELD,
 619         kMillisecondsInDayField = UDAT_MILLISECONDS_IN_DAY_FIELD,
 620
 621         // Obsolete; use UDateFormatField instead
 622         ERA_FIELD = UDAT_ERA_FIELD,
 623         YEAR_FIELD = UDAT_YEAR_FIELD,
 624         MONTH_FIELD = UDAT_MONTH_FIELD,
 625         DATE_FIELD = UDAT_DATE_FIELD,
 626         HOUR_OF_DAY1_FIELD = UDAT_HOUR_OF_DAY1_FIELD,
 627         HOUR_OF_DAY0_FIELD = UDAT_HOUR_OF_DAY0_FIELD,
 628         MINUTE_FIELD = UDAT_MINUTE_FIELD,
 629         SECOND_FIELD = UDAT_SECOND_FIELD,
 630         MILLISECOND_FIELD = UDAT_FRACTIONAL_SECOND_FIELD,
 631         DAY_OF_WEEK_FIELD = UDAT_DAY_OF_WEEK_FIELD,
 632         DAY_OF_YEAR_FIELD = UDAT_DAY_OF_YEAR_FIELD,
 633         DAY_OF_WEEK_IN_MONTH_FIELD = UDAT_DAY_OF_WEEK_IN_MONTH_FIELD,
 634         WEEK_OF_YEAR_FIELD = UDAT_WEEK_OF_YEAR_FIELD,
 635         WEEK_OF_MONTH_FIELD = UDAT_WEEK_OF_MONTH_FIELD,
 636         AM_PM_FIELD = UDAT_AM_PM_FIELD,
 637         HOUR1_FIELD = UDAT_HOUR1_FIELD,
 638         HOUR0_FIELD = UDAT_HOUR0_FIELD,
 639         TIMEZONE_FIELD = UDAT_TIMEZONE_FIELD
 640     };
 641 };
 642
 643 inline UnicodeString&
 644 DateFormat::format(const Formattable& obj,
 645                    UnicodeString& appendTo,
 646                    UErrorCode& status) const {
 647     return Format::format(obj, appendTo, status);
 648 }
 649 U_NAMESPACE_END
 650
 651 #endif /* #if !UCONFIG_NO_FORMATTING */
 652
 653 #endif // _DATEFMT
 654 //eof