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smpdtfmt.h

00001 /*
00002 * Copyright (C) {1997-2001}, International Business Machines Corporation and others. All Rights Reserved.
00003 *******************************************************************************
00004 *
00005 * File SMPDTFMT.H
00006 *
00007 * Modification History:
00008 *
00009 *   Date        Name        Description
00010 *   02/19/97    aliu        Converted from java.
00011 *   07/09/97    helena      Make ParsePosition into a class.
00012 *   07/21/98    stephen     Added GMT_PLUS, GMT_MINUS
00013 *                            Changed setTwoDigitStartDate to set2DigitYearStart
00014 *                            Changed getTwoDigitStartDate to get2DigitYearStart
00015 *                            Removed subParseLong
00016 *                            Removed getZoneIndex (added in DateFormatSymbols)
00017 *   06/14/99    stephen     Removed fgTimeZoneDataSuffix
00018 *   10/14/99    aliu        Updated class doc to describe 2-digit year parsing
00019 *                           {j28 4182066}.
00020 *******************************************************************************
00021 */
00022 
00023 #ifndef SMPDTFMT_H
00024 #define SMPDTFMT_H
00025 
00026 #include "unicode/utypes.h"
00027 #include "unicode/datefmt.h"
00028 
00029 U_NAMESPACE_BEGIN
00030 
00031 class DateFormatSymbols;
00032 class DateFormat;
00033 
00175 class U_I18N_API SimpleDateFormat: public DateFormat {
00176 public:
00185     SimpleDateFormat(UErrorCode& status);
00186 
00196     SimpleDateFormat(const UnicodeString& pattern,
00197                      UErrorCode& status);
00198 
00208     SimpleDateFormat(const UnicodeString& pattern,
00209                      const Locale& locale,
00210                      UErrorCode& status);
00211 
00218     SimpleDateFormat(const UnicodeString& pattern,
00219                      DateFormatSymbols* formatDataToAdopt,
00220                      UErrorCode& status);
00221 
00228     SimpleDateFormat(const UnicodeString& pattern,
00229                      const DateFormatSymbols& formatData,
00230                      UErrorCode& status);
00231 
00236     SimpleDateFormat(const SimpleDateFormat&);
00237 
00242     SimpleDateFormat& operator=(const SimpleDateFormat&);
00243 
00248     virtual ~SimpleDateFormat();
00249 
00255     virtual Format* clone(void) const;
00256 
00262     virtual UBool operator==(const Format& other) const;
00263 
00280     virtual UnicodeString& format(  Calendar& cal,
00281                                     UnicodeString& toAppendTo,
00282                                     FieldPosition& pos) const;
00283 
00302     virtual UnicodeString& format(  const Formattable& obj,
00303                                     UnicodeString& toAppendTo,
00304                                     FieldPosition& pos,
00305                                     UErrorCode& status) const;
00306 
00311     UnicodeString& format(UDate date,
00312                           UnicodeString& result,
00313                           FieldPosition& fieldPosition) const;
00314 
00319     UnicodeString& format(const Formattable& obj,
00320                           UnicodeString& result,
00321                           UErrorCode& status) const;
00322 
00327     UnicodeString& format(UDate date, UnicodeString& result) const;
00328 
00346     virtual void parse( const UnicodeString& text,
00347                         Calendar& cal,
00348                         ParsePosition& pos) const;
00349 
00369     UDate parse( const UnicodeString& text,
00370                  ParsePosition& pos) const;
00371 
00372 
00388     virtual UDate parse( const UnicodeString& text,
00389                         UErrorCode& status) const;
00390 
00404     virtual void set2DigitYearStart(UDate d, UErrorCode& status);
00405 
00419     UDate get2DigitYearStart(UErrorCode& status) const;
00420 
00425     virtual UnicodeString& toPattern(UnicodeString& result) const;
00426 
00442     virtual UnicodeString& toLocalizedPattern(UnicodeString& result,
00443                                               UErrorCode& status) const;
00444 
00453     virtual void applyPattern(const UnicodeString& pattern);
00454 
00465     virtual void applyLocalizedPattern(const UnicodeString& pattern,
00466                                        UErrorCode& status);
00467 
00476     virtual const DateFormatSymbols* getDateFormatSymbols(void) const;
00477 
00484     virtual void adoptDateFormatSymbols(DateFormatSymbols* newFormatSymbols);
00485 
00491     virtual void setDateFormatSymbols(const DateFormatSymbols& newFormatSymbols);
00492 
00504     static UClassID getStaticClassID(void) { return (UClassID)&fgClassID; }
00505 
00517     virtual UClassID getDynamicClassID(void) const { return getStaticClassID(); }
00518 
00519 private:
00520     static const char fgClassID;
00521 
00522     static const char fgDateTimePatternsTag[];   // resource bundle tag for default date and time patterns
00523 
00524     static const UChar fgDefaultPattern[];    // date/time pattern of last resort
00525 
00526     friend class DateFormat;
00527 
00540     //int32_t getZoneIndex(const DateFormatSymbols&, const UnicodeString& ID) const;
00541 
00542     void initializeDefaultCentury(void);
00543 
00547     SimpleDateFormat(EStyle timeStyle, EStyle dateStyle, const Locale& locale, UErrorCode& status);
00548 
00554     SimpleDateFormat(const Locale& locale, UErrorCode& status); // Use default pattern
00555 
00575     UnicodeString& subFormat(   UnicodeString& result,
00576                                 UChar ch,
00577                                 int32_t count,
00578                                 int32_t beginOffset,
00579                                 FieldPosition& pos,
00580                                 Calendar& cal,
00581                                 UErrorCode& status) const; // in case of illegal argument
00582 
00593     UnicodeString& zeroPaddingNumber(UnicodeString& result,
00594                                      int32_t value,
00595                                      int32_t minDigits,
00596                                      int32_t maxDigits) const;
00597 
00607     void construct(EStyle timeStyle, EStyle dateStyle, const Locale& locale, UErrorCode& status);
00608 
00615     void initialize(const Locale& locale, UErrorCode& status);
00616 
00626     int32_t matchString(const UnicodeString& text, UTextOffset start, Calendar::EDateFields field,
00627                         const UnicodeString* stringArray, int32_t stringArrayCount, Calendar& cal) const;
00628 
00640     int32_t subParse(const UnicodeString& text, int32_t& start, UChar ch, int32_t count,
00641                      UBool obeyCount, UBool ambiguousYear[], Calendar& cal) const;
00642 
00650     //UBool subParseLong(const UnicodeString& text, ParsePosition& pos, int32_t& value) const;
00651 
00658     static void translatePattern(const UnicodeString& originalPattern,
00659                                 UnicodeString& translatedPattern,
00660                                 const UnicodeString& from,
00661                                 const UnicodeString& to,
00662                                 UErrorCode& status);
00667     //int32_t getZoneIndex(const UnicodeString& ID) const;
00668 
00673     void         parseAmbiguousDatesAsAfter(UDate startDate, UErrorCode& status);
00674 
00679     UDate         internalGetDefaultCenturyStart(void) const;
00680 
00685     int32_t          internalGetDefaultCenturyStartYear(void) const;
00686 
00691     static void  initializeSystemDefaultCentury(void);
00692 
00696     // For time zones that have no names, use strings GMT+minutes and
00697     // GMT-minutes. For instance, in France the time zone is GMT+60.
00698     static const UChar fgGmtPlus[];
00699     static const UChar fgGmtMinus[];
00700     static const UChar fgGmt[];
00701 
00705     static const Calendar::EDateFields fgPatternIndexToCalendarField[];
00706 
00710     static const DateFormat::EField fgPatternIndexToDateFormatField[];
00711 
00715     UnicodeString       fPattern;
00716 
00721     DateFormatSymbols*  fSymbols;   // Owned
00722 
00731     UDate                fDefaultCenturyStart;
00732 
00736     /*transient*/ int32_t   fDefaultCenturyStartYear;
00737 
00744     static UDate         fgSystemDefaultCenturyStart;
00745 
00749     static int32_t          fgSystemDefaultCenturyStartYear;
00750 
00754     static const int32_t    fgSystemDefaultCenturyYear;
00755 
00756 public:
00761     static const UDate        fgSystemDefaultCentury;
00762 };
00763 
00764 inline UDate
00765 SimpleDateFormat::get2DigitYearStart(UErrorCode& /*status*/) const
00766 {
00767     return fDefaultCenturyStart;
00768 }
00769 
00770 inline UnicodeString&
00771 SimpleDateFormat::format(const Formattable& obj,
00772                          UnicodeString& result,
00773                          UErrorCode& status) const {
00774     // Don't use Format:: - use immediate base class only,
00775     // in case immediate base modifies behavior later.
00776     return DateFormat::format(obj, result, status);
00777 }
00778 
00779 inline UnicodeString&
00780 SimpleDateFormat::format(UDate date,
00781                          UnicodeString& result,
00782                          FieldPosition& fieldPosition) const {
00783     // Don't use Format:: - use immediate base class only,
00784     // in case immediate base modifies behavior later.
00785     return DateFormat::format(date, result, fieldPosition);
00786 }
00787 
00788 inline UnicodeString&
00789 SimpleDateFormat::format(UDate date, UnicodeString& result) const {
00790     return DateFormat::format(date, result);
00791 }
00792 
00793 U_NAMESPACE_END
00794 
00795 #endif // _SMPDTFMT
00796 //eof

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