icuSources/i18n/unicode/datefmt.h

   1 /*
   2 ********************************************************************************
   3 *   Copyright (C) 1997-2005, 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 /**
  33  * \file
  34  * \brief C++ API: Abstract class for converting dates.
  35  */
  36
  37 U_NAMESPACE_BEGIN
  38
  39 class TimeZone;
  40
  41 /**
  42  * DateFormat is an abstract class for a family of classes that convert dates and
  43  * times from their internal representations to textual form and back again in a
  44  * language-independent manner. Converting from the internal representation (milliseconds
  45  * since midnight, January 1, 1970) to text is known as "formatting," and converting
  46  * from text to millis is known as "parsing."  We currently define only one concrete
  47  * subclass of DateFormat: SimpleDateFormat, which can handle pretty much all normal
  48  * date formatting and parsing actions.
  49  * <P>
  50  * DateFormat helps you to format and parse dates for any locale. Your code can
  51  * be completely independent of the locale conventions for months, days of the
  52  * week, or even the calendar format: lunar vs. solar.
  53  * <P>
  54  * To format a date for the current Locale, use one of the static factory
  55  * methods:
  56  * <pre>
  57  * \code
  58  *      DateFormat* dfmt = DateFormat::createDateInstance();
  59  *      UDate myDate = Calendar::getNow();
  60  *      UnicodeString myString;
  61  *      myString = dfmt->format( myDate, myString );
  62  * \endcode
  63  * </pre>
  64  * If you are formatting multiple numbers, it is more efficient to get the
  65  * format and use it multiple times so that the system doesn't have to fetch the
  66  * information about the local language and country conventions multiple times.
  67  * <pre>
  68  * \code
  69  *      DateFormat* df = DateFormat::createDateInstance();
  70  *      UnicodeString myString;
  71  *      UDate myDateArr[] = { 0.0, 100000000.0, 2000000000.0 }; // test values
  72  *      for (int32_t i = 0; i < 3; ++i) {
  73  *          myString.remove();
  74  *          cout << df->format( myDateArr[i], myString ) << endl;
  75  *      }
  76  * \endcode
  77  * </pre>
  78  * To get specific fields of a date, you can use UFieldPosition to
  79  * get specific fields.
  80  * <pre>
  81  * \code
  82  *      DateFormat* dfmt = DateFormat::createDateInstance();
  83  *      FieldPosition pos(DateFormat::YEAR_FIELD);
  84  *      UnicodeString myString;
  85  *      myString = dfmt->format( myDate, myString );
  86  *      cout << myString << endl;
  87  *      cout << pos.getBeginIndex() << "," << pos. getEndIndex() << endl;
  88  * \endcode
  89  * </pre>
  90  * To format a date for a different Locale, specify it in the call to
  91  * createDateInstance().
  92  * <pre>
  93  * \code
  94  *       DateFormat* df =
  95  *           DateFormat::createDateInstance( DateFormat::SHORT, Locale::getFrance());
  96  * \endcode
  97  * </pre>
  98  * You can use a DateFormat to parse also.
  99  * <pre>
 100  * \code
 101  *       UErrorCode status = U_ZERO_ERROR;
 102  *       UDate myDate = df->parse(myString, status);
 103  * \endcode
 104  * </pre>
 105  * Use createDateInstance() to produce the normal date format for that country.
 106  * There are other static factory methods available. Use createTimeInstance()
 107  * to produce the normal time format for that country. Use createDateTimeInstance()
 108  * to produce a DateFormat that formats both date and time. You can pass in
 109  * different options to these factory methods to control the length of the
 110  * result; from SHORT to MEDIUM to LONG to FULL. The exact result depends on the
 111  * locale, but generally:
 112  * <ul type=round>
 113  *   <li>   SHORT is completely numeric, such as 12/13/52 or 3:30pm
 114  *   <li>   MEDIUM is longer, such as Jan 12, 1952
 115  *   <li>   LONG is longer, such as January 12, 1952 or 3:30:32pm
 116  *   <li>   FULL is pretty completely specified, such as
 117  *          Tuesday, April 12, 1952 AD or 3:30:42pm PST.
 118  * </ul>
 119  * You can also set the time zone on the format if you wish. If you want even
 120  * more control over the format or parsing, (or want to give your users more
 121  * control), you can try casting the DateFormat you get from the factory methods
 122  * to a SimpleDateFormat. This will work for the majority of countries; just
 123  * remember to chck getDynamicClassID() before carrying out the cast.
 124  * <P>
 125  * You can also use forms of the parse and format methods with ParsePosition and
 126  * FieldPosition to allow you to
 127  * <ul type=round>
 128  *   <li>   Progressively parse through pieces of a string.
 129  *   <li>   Align any particular field, or find out where it is for selection
 130  *          on the screen.
 131  * </ul>
 132  *
 133  * <p><em>User subclasses are not supported.</em> While clients may write
 134  * subclasses, such code will not necessarily work and will not be
 135  * guaranteed to work stably from release to release.
 136  */
 137 class U_I18N_API DateFormat : public Format {
 138 public:
 139
 140     /**
 141      * Constants for various style patterns. These reflect the order of items in
 142      * the DateTimePatterns resource. There are 4 time patterns, 4 date patterns,
 143      * and then the date-time pattern. Each block of 4 values in the resource occurs
 144      * in the order full, long, medium, short.
 145      * @stable ICU 2.4
 146      */
 147     enum EStyle
 148     {
 149         kNone   = -1,
 150
 151         kFull   = 0,
 152         kLong   = 1,
 153         kMedium = 2,
 154         kShort  = 3,
 155
 156         kDateOffset   = kShort + 1,
 157      // kFull   + kDateOffset = 4
 158      // kLong   + kDateOffset = 5
 159      // kMedium + kDateOffset = 6
 160      // kShort  + kDateOffset = 7
 161
 162         kDateTime             = 8,
 163
 164         kDefault      = kMedium,
 165
 166
 167
 168     /**
 169      * These constants are provided for backwards compatibility only.
 170      * Please use the C++ style constants defined above.
 171      */
 172         FULL        = kFull,
 173         LONG        = kLong,
 174         MEDIUM        = kMedium,
 175         SHORT        = kShort,
 176         DEFAULT        = kDefault,
 177         DATE_OFFSET    = kDateOffset,
 178         NONE        = kNone,
 179         DATE_TIME    = kDateTime
 180     };
 181
 182     /**
 183      * Destructor.
 184      * @stable ICU 2.0
 185      */
 186     virtual ~DateFormat();
 187
 188     /**
 189      * Equality operator.  Returns true if the two formats have the same behavior.
 190      * @stable ICU 2.0
 191      */
 192     virtual UBool operator==(const Format&) const;
 193
 194     /**
 195      * Format an object to produce a string. This method handles Formattable
 196      * objects with a UDate type. If a the Formattable object type is not a Date,
 197      * then it returns a failing UErrorCode.
 198      *
 199      * @param obj       The object to format. Must be a Date.
 200      * @param appendTo  Output parameter to receive result.
 201      *                  Result is appended to existing contents.
 202      * @param pos       On input: an alignment field, if desired.
 203      *                  On output: the offsets of the alignment field.
 204      * @param status    Output param filled with success/failure status.
 205      * @return          Reference to 'appendTo' parameter.
 206      * @stable ICU 2.0
 207      */
 208     virtual UnicodeString& format(const Formattable& obj,
 209                                   UnicodeString& appendTo,
 210                                   FieldPosition& pos,
 211                                   UErrorCode& status) const;
 212
 213     /**
 214      * Formats a date into a date/time string. This is an abstract method which
 215      * concrete subclasses must implement.
 216      * <P>
 217      * On input, the FieldPosition parameter may have its "field" member filled with
 218      * an enum value specifying a field.  On output, the FieldPosition will be filled
 219      * in with the text offsets for that field.
 220      * <P> For example, given a time text
 221      * "1996.07.10 AD at 15:08:56 PDT", if the given fieldPosition.field is
 222      * UDAT_YEAR_FIELD, the offsets fieldPosition.beginIndex and
 223      * statfieldPositionus.getEndIndex will be set to 0 and 4, respectively.
 224      * <P> Notice
 225      * that if the same time field appears more than once in a pattern, the status will
 226      * be set for the first occurence of that time field. For instance,
 227      * formatting a UDate to the time string "1 PM PDT (Pacific Daylight Time)"
 228      * using the pattern "h a z (zzzz)" and the alignment field
 229      * DateFormat::TIMEZONE_FIELD, the offsets fieldPosition.beginIndex and
 230      * fieldPosition.getEndIndex will be set to 5 and 8, respectively, for the first
 231      * occurence of the timezone pattern character 'z'.
 232      *
 233      * @param cal           Calendar set to the date and time to be formatted
 234      *                      into a date/time string.
 235      * @param appendTo      Output parameter to receive result.
 236      *                      Result is appended to existing contents.
 237      * @param fieldPosition On input: an alignment field, if desired (see examples above)
 238      *                      On output: the offsets of the alignment field (see examples above)
 239      * @return              Reference to 'appendTo' parameter.
 240      * @stable ICU 2.1
 241      */
 242     virtual UnicodeString& format(  Calendar& cal,
 243                                     UnicodeString& appendTo,
 244                                     FieldPosition& fieldPosition) const = 0;
 245
 246     /**
 247      * Formats a UDate into a date/time string.
 248      * <P>
 249      * On input, the FieldPosition parameter may have its "field" member filled with
 250      * an enum value specifying a field.  On output, the FieldPosition will be filled
 251      * in with the text offsets for that field.
 252      * <P> For example, given a time text
 253      * "1996.07.10 AD at 15:08:56 PDT", if the given fieldPosition.field is
 254      * UDAT_YEAR_FIELD, the offsets fieldPosition.beginIndex and
 255      * statfieldPositionus.getEndIndex will be set to 0 and 4, respectively.
 256      * <P> Notice
 257      * that if the same time field appears more than once in a pattern, the status will
 258      * be set for the first occurence of that time field. For instance,
 259      * formatting a UDate to the time string "1 PM PDT (Pacific Daylight Time)"
 260      * using the pattern "h a z (zzzz)" and the alignment field
 261      * DateFormat::TIMEZONE_FIELD, the offsets fieldPosition.beginIndex and
 262      * fieldPosition.getEndIndex will be set to 5 and 8, respectively, for the first
 263      * occurence of the timezone pattern character 'z'.
 264      *
 265      * @param date          UDate to be formatted into a date/time string.
 266      * @param appendTo      Output parameter to receive result.
 267      *                      Result is appended to existing contents.
 268      * @param fieldPosition On input: an alignment field, if desired (see examples above)
 269      *                      On output: the offsets of the alignment field (see examples above)
 270      * @return              Reference to 'appendTo' parameter.
 271      * @stable ICU 2.0
 272      */
 273     UnicodeString& format(  UDate date,
 274                             UnicodeString& appendTo,
 275                             FieldPosition& fieldPosition) const;
 276
 277     /**
 278      * Formats a UDate into a date/time string. If there is a problem, you won't
 279      * know, using this method. Use the overloaded format() method which takes a
 280      * FieldPosition& to detect formatting problems.
 281      *
 282      * @param date      The UDate value to be formatted into a string.
 283      * @param appendTo  Output parameter to receive result.
 284      *                  Result is appended to existing contents.
 285      * @return          Reference to 'appendTo' parameter.
 286      * @stable ICU 2.0
 287      */
 288     UnicodeString& format(UDate date, UnicodeString& appendTo) const;
 289
 290     /**
 291      * Redeclared Format method.
 292      *
 293      * @param obj       The object to be formatted into a string.
 294      * @param appendTo  Output parameter to receive result.
 295      *                  Result is appended to existing contents.
 296      * @param status    Output param filled with success/failure status.
 297      * @return          Reference to 'appendTo' parameter.
 298      * @stable ICU 2.0
 299      */
 300     UnicodeString& format(const Formattable& obj,
 301                           UnicodeString& appendTo,
 302                           UErrorCode& status) const;
 303
 304     /**
 305      * Parse a date/time string.
 306      *
 307      * @param text      The string to be parsed into a UDate value.
 308      * @param status    Output param to be set to success/failure code. If
 309      *                  'text' cannot be parsed, it will be set to a failure
 310      *                  code.
 311      * @result          The parsed UDate value, if successful.
 312      * @stable ICU 2.0
 313      */
 314     virtual UDate parse( const UnicodeString& text,
 315                         UErrorCode& status) const;
 316
 317     /**
 318      * Parse a date/time string beginning at the given parse position. For
 319      * example, a time text "07/10/96 4:5 PM, PDT" will be parsed into a Date
 320      * that is equivalent to Date(837039928046).
 321      * <P>
 322      * By default, parsing is lenient: If the input is not in the form used by
 323      * this object's format method but can still be parsed as a date, then the
 324      * parse succeeds. Clients may insist on strict adherence to the format by
 325      * calling setLenient(false).
 326      *
 327      * @see DateFormat::setLenient(boolean)
 328      *
 329      * @param text  The date/time string to be parsed
 330      * @param cal   a Calendar set to the date and time to be formatted
 331      *              into a date/time string.
 332      * @param pos   On input, the position at which to start parsing; on
 333      *              output, the position at which parsing terminated, or the
 334      *              start position if the parse failed.
 335      * @return      A valid UDate if the input could be parsed.
 336      * @stable ICU 2.1
 337      */
 338     virtual void parse( const UnicodeString& text,
 339                         Calendar& cal,
 340                         ParsePosition& pos) const = 0;
 341
 342     /**
 343      * Parse a date/time string beginning at the given parse position. For
 344      * example, a time text "07/10/96 4:5 PM, PDT" will be parsed into a Date
 345      * that is equivalent to Date(837039928046).
 346      * <P>
 347      * By default, parsing is lenient: If the input is not in the form used by
 348      * this object's format method but can still be parsed as a date, then the
 349      * parse succeeds. Clients may insist on strict adherence to the format by
 350      * calling setLenient(false).
 351      *
 352      * @see DateFormat::setLenient(boolean)
 353      *
 354      * @param text  The date/time string to be parsed
 355      * @param pos   On input, the position at which to start parsing; on
 356      *              output, the position at which parsing terminated, or the
 357      *              start position if the parse failed.
 358      * @return      A valid UDate if the input could be parsed.
 359      * @stable ICU 2.0
 360      */
 361     UDate parse( const UnicodeString& text,
 362                  ParsePosition& pos) const;
 363
 364     /**
 365      * Parse a string to produce an object. This methods handles parsing of
 366      * date/time strings into Formattable objects with UDate types.
 367      * <P>
 368      * Before calling, set parse_pos.index to the offset you want to start
 369      * parsing at in the source. After calling, parse_pos.index is the end of
 370      * the text you parsed. If error occurs, index is unchanged.
 371      * <P>
 372      * When parsing, leading whitespace is discarded (with a successful parse),
 373      * while trailing whitespace is left as is.
 374      * <P>
 375      * See Format::parseObject() for more.
 376      *
 377      * @param source    The string to be parsed into an object.
 378      * @param result    Formattable to be set to the parse result.
 379      *                  If parse fails, return contents are undefined.
 380      * @param parse_pos The position to start parsing at. Upon return
 381      *                  this param is set to the position after the
 382      *                  last character successfully parsed. If the
 383      *                  source is not parsed successfully, this param
 384      *                  will remain unchanged.
 385      * @return          A newly created Formattable* object, or NULL
 386      *                  on failure.  The caller owns this and should
 387      *                  delete it when done.
 388      * @stable ICU 2.0
 389      */
 390     virtual void parseObject(const UnicodeString& source,
 391                              Formattable& result,
 392                              ParsePosition& parse_pos) const;
 393
 394     /**
 395      * Create a default date/time formatter that uses the SHORT style for both
 396      * the date and the time.
 397      *
 398      * @return A date/time formatter which the caller owns.
 399      * @stable ICU 2.0
 400      */
 401     static DateFormat* U_EXPORT2 createInstance(void);
 402
 403     /**
 404      * Creates a time formatter with the given formatting style for the given
 405      * locale.
 406      *
 407      * @param style     The given formatting style. For example,
 408      *                  SHORT for "h:mm a" in the US locale.
 409      * @param aLocale   The given locale.
 410      * @return          A time formatter which the caller owns.
 411      * @stable ICU 2.0
 412      */
 413     static DateFormat* U_EXPORT2 createTimeInstance(EStyle style = kDefault,
 414                                           const Locale& aLocale = Locale::getDefault());
 415
 416     /**
 417      * Creates a date formatter with the given formatting style for the given
 418      * const locale.
 419      *
 420      * @param style     The given formatting style. For example,
 421      *                  SHORT for "M/d/yy" in the US locale.
 422      * @param aLocale   The given locale.
 423      * @return          A date formatter which the caller owns.
 424      * @stable ICU 2.0
 425      */
 426     static DateFormat* U_EXPORT2 createDateInstance(EStyle style = kDefault,
 427                                           const Locale& aLocale = Locale::getDefault());
 428
 429     /**
 430      * Creates a date/time formatter with the given formatting styles for the
 431      * given locale.
 432      *
 433      * @param dateStyle The given formatting style for the date portion of the result.
 434      *                  For example, SHORT for "M/d/yy" in the US locale.
 435      * @param timeStyle The given formatting style for the time portion of the result.
 436      *                  For example, SHORT for "h:mm a" in the US locale.
 437      * @param aLocale   The given locale.
 438      * @return          A date/time formatter which the caller owns.
 439      * @stable ICU 2.0
 440      */
 441     static DateFormat* U_EXPORT2 createDateTimeInstance(EStyle dateStyle = kDefault,
 442                                               EStyle timeStyle = kDefault,
 443                                               const Locale& aLocale = Locale::getDefault());
 444
 445     /**
 446      * Gets the set of locales for which DateFormats are installed.
 447      * @param count Filled in with the number of locales in the list that is returned.
 448      * @return the set of locales for which DateFormats are installed.  The caller
 449      *  does NOT own this list and must not delete it.
 450      * @stable ICU 2.0
 451      */
 452     static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);
 453
 454     /**
 455      * Returns true if the formatter is set for lenient parsing.
 456      * @stable ICU 2.0
 457      */
 458     virtual UBool isLenient(void) const;
 459
 460     /**
 461      * Specify whether or not date/time parsing is to be lenient. With lenient
 462      * parsing, the parser may use heuristics to interpret inputs that do not
 463      * precisely match this object's format. With strict parsing, inputs must
 464      * match this object's format.
 465      *
 466      * @param lenient  True specifies date/time interpretation to be lenient.
 467      * @see Calendar::setLenient
 468      * @stable ICU 2.0
 469      */
 470     virtual void setLenient(UBool lenient);
 471
 472     /**
 473      * Gets the calendar associated with this date/time formatter.
 474      * @return the calendar associated with this date/time formatter.
 475      * @stable ICU 2.0
 476      */
 477     virtual const Calendar* getCalendar(void) const;
 478
 479     /**
 480      * Set the calendar to be used by this date format. Initially, the default
 481      * calendar for the specified or default locale is used.  The caller should
 482      * not delete the Calendar object after it is adopted by this call.
 483      * Adopting a new calendar will change to the default symbols.
 484      *
 485      * @param calendarToAdopt    Calendar object to be adopted.
 486      * @stable ICU 2.0
 487      */
 488     virtual void adoptCalendar(Calendar* calendarToAdopt);
 489
 490     /**
 491      * Set the calendar to be used by this date format. Initially, the default
 492      * calendar for the specified or default locale is used.
 493      *
 494      * @param newCalendar Calendar object to be set.
 495      * @stable ICU 2.0
 496      */
 497     virtual void setCalendar(const Calendar& newCalendar);
 498
 499
 500     /**
 501      * Gets the number formatter which this date/time formatter uses to format
 502      * and parse the numeric portions of the pattern.
 503      * @return the number formatter which this date/time formatter uses.
 504      * @stable ICU 2.0
 505      */
 506     virtual const NumberFormat* getNumberFormat(void) const;
 507
 508     /**
 509      * Allows you to set the number formatter.  The caller should
 510      * not delete the NumberFormat object after it is adopted by this call.
 511      * @param formatToAdopt     NumberFormat object to be adopted.
 512      * @stable ICU 2.0
 513      */
 514     virtual void adoptNumberFormat(NumberFormat* formatToAdopt);
 515
 516     /**
 517      * Allows you to set the number formatter.
 518      * @param newNumberFormat  NumberFormat object to be set.
 519      * @stable ICU 2.0
 520      */
 521     virtual void setNumberFormat(const NumberFormat& newNumberFormat);
 522
 523     /**
 524      * Returns a reference to the TimeZone used by this DateFormat's calendar.
 525      * @return the time zone associated with the calendar of DateFormat.
 526      * @stable ICU 2.0
 527      */
 528     virtual const TimeZone& getTimeZone(void) const;
 529
 530     /**
 531      * Sets the time zone for the calendar of this DateFormat object. The caller
 532      * no longer owns the TimeZone object and should not delete it after this call.
 533      * @param zoneToAdopt the TimeZone to be adopted.
 534      * @stable ICU 2.0
 535      */
 536     virtual void adoptTimeZone(TimeZone* zoneToAdopt);
 537
 538     /**
 539      * Sets the time zone for the calendar of this DateFormat object.
 540      * @param zone the new time zone.
 541      * @stable ICU 2.0
 542      */
 543     virtual void setTimeZone(const TimeZone& zone);
 544
 545 protected:
 546     /**
 547      * Default constructor.  Creates a DateFormat with no Calendar or NumberFormat
 548      * associated with it.  This constructor depends on the subclasses to fill in
 549      * the calendar and numberFormat fields.
 550      * @stable ICU 2.0
 551      */
 552     DateFormat();
 553
 554     /**
 555      * Copy constructor.
 556      * @stable ICU 2.0
 557      */
 558     DateFormat(const DateFormat&);
 559
 560     /**
 561      * Default assignment operator.
 562      * @stable ICU 2.0
 563      */
 564     DateFormat& operator=(const DateFormat&);
 565
 566     /**
 567      * The calendar that DateFormat uses to produce the time field values needed
 568      * to implement date/time formatting. Subclasses should generally initialize
 569      * this to the default calendar for the locale associated with this DateFormat.
 570      * @stable ICU 2.4
 571      */
 572     Calendar* fCalendar;
 573
 574     /**
 575      * The number formatter that DateFormat uses to format numbers in dates and
 576      * times. Subclasses should generally initialize this to the default number
 577      * format for the locale associated with this DateFormat.
 578      * @stable ICU 2.4
 579      */
 580     NumberFormat* fNumberFormat;
 581
 582 private:
 583     /**
 584      * Gets the date/time formatter with the given formatting styles for the
 585      * given locale.
 586      * @param dateStyle the given date formatting style.
 587      * @param timeStyle the given time formatting style.
 588      * @param inLocale the given locale.
 589      * @return a date/time formatter, or 0 on failure.
 590      */
 591     static DateFormat* U_EXPORT2 create(EStyle timeStyle, EStyle dateStyle, const Locale&);
 592
 593 public:
 594     /**
 595      * Field selector for FieldPosition for DateFormat fields.
 596      * @obsolete ICU 3.4 use UDateFormatField instead, since this API will be
 597      * removed in that release
 598      */
 599     enum EField
 600     {
 601         // Obsolete; use UDateFormatField instead
 602         kEraField = UDAT_ERA_FIELD,
 603         kYearField = UDAT_YEAR_FIELD,
 604         kMonthField = UDAT_MONTH_FIELD,
 605         kDateField = UDAT_DATE_FIELD,
 606         kHourOfDay1Field = UDAT_HOUR_OF_DAY1_FIELD,
 607         kHourOfDay0Field = UDAT_HOUR_OF_DAY0_FIELD,
 608         kMinuteField = UDAT_MINUTE_FIELD,
 609         kSecondField = UDAT_SECOND_FIELD,
 610         kMillisecondField = UDAT_FRACTIONAL_SECOND_FIELD,
 611         kDayOfWeekField = UDAT_DAY_OF_WEEK_FIELD,
 612         kDayOfYearField = UDAT_DAY_OF_YEAR_FIELD,
 613         kDayOfWeekInMonthField = UDAT_DAY_OF_WEEK_IN_MONTH_FIELD,
 614         kWeekOfYearField = UDAT_WEEK_OF_YEAR_FIELD,
 615         kWeekOfMonthField = UDAT_WEEK_OF_MONTH_FIELD,
 616         kAmPmField = UDAT_AM_PM_FIELD,
 617         kHour1Field = UDAT_HOUR1_FIELD,
 618         kHour0Field = UDAT_HOUR0_FIELD,
 619         kTimezoneField = UDAT_TIMEZONE_FIELD,
 620         kYearWOYField = UDAT_YEAR_WOY_FIELD,
 621         kDOWLocalField = UDAT_DOW_LOCAL_FIELD,
 622         kExtendedYearField = UDAT_EXTENDED_YEAR_FIELD,
 623         kJulianDayField = UDAT_JULIAN_DAY_FIELD,
 624         kMillisecondsInDayField = UDAT_MILLISECONDS_IN_DAY_FIELD,
 625
 626         // Obsolete; use UDateFormatField instead
 627         ERA_FIELD = UDAT_ERA_FIELD,
 628         YEAR_FIELD = UDAT_YEAR_FIELD,
 629         MONTH_FIELD = UDAT_MONTH_FIELD,
 630         DATE_FIELD = UDAT_DATE_FIELD,
 631         HOUR_OF_DAY1_FIELD = UDAT_HOUR_OF_DAY1_FIELD,
 632         HOUR_OF_DAY0_FIELD = UDAT_HOUR_OF_DAY0_FIELD,
 633         MINUTE_FIELD = UDAT_MINUTE_FIELD,
 634         SECOND_FIELD = UDAT_SECOND_FIELD,
 635         MILLISECOND_FIELD = UDAT_FRACTIONAL_SECOND_FIELD,
 636         DAY_OF_WEEK_FIELD = UDAT_DAY_OF_WEEK_FIELD,
 637         DAY_OF_YEAR_FIELD = UDAT_DAY_OF_YEAR_FIELD,
 638         DAY_OF_WEEK_IN_MONTH_FIELD = UDAT_DAY_OF_WEEK_IN_MONTH_FIELD,
 639         WEEK_OF_YEAR_FIELD = UDAT_WEEK_OF_YEAR_FIELD,
 640         WEEK_OF_MONTH_FIELD = UDAT_WEEK_OF_MONTH_FIELD,
 641         AM_PM_FIELD = UDAT_AM_PM_FIELD,
 642         HOUR1_FIELD = UDAT_HOUR1_FIELD,
 643         HOUR0_FIELD = UDAT_HOUR0_FIELD,
 644         TIMEZONE_FIELD = UDAT_TIMEZONE_FIELD
 645     };
 646 };
 647
 648 inline UnicodeString&
 649 DateFormat::format(const Formattable& obj,
 650                    UnicodeString& appendTo,
 651                    UErrorCode& status) const {
 652     return Format::format(obj, appendTo, status);
 653 }
 654 U_NAMESPACE_END
 655
 656 #endif /* #if !UCONFIG_NO_FORMATTING */
 657
 658 #endif // _DATEFMT
 659 //eof