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smpdtfmt.h

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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:
00186     SimpleDateFormat(UErrorCode& status);
00187 
00199     SimpleDateFormat(const UnicodeString& pattern,
00200                      UErrorCode& status);
00201 
00214     SimpleDateFormat(const UnicodeString& pattern,
00215                      const Locale& locale,
00216                      UErrorCode& status);
00217 
00227     SimpleDateFormat(const UnicodeString& pattern,
00228                      DateFormatSymbols* formatDataToAdopt,
00229                      UErrorCode& status);
00230 
00240     SimpleDateFormat(const UnicodeString& pattern,
00241                      const DateFormatSymbols& formatData,
00242                      UErrorCode& status);
00243 
00248     SimpleDateFormat(const SimpleDateFormat&);
00249 
00254     SimpleDateFormat& operator=(const SimpleDateFormat&);
00255 
00260     virtual ~SimpleDateFormat();
00261 
00268     virtual Format* clone(void) const;
00269 
00277     virtual UBool operator==(const Format& other) const;
00278 
00295     virtual UnicodeString& format(  Calendar& cal,
00296                                     UnicodeString& toAppendTo,
00297                                     FieldPosition& pos) const;
00298 
00318     virtual UnicodeString& format(  const Formattable& obj,
00319                                     UnicodeString& toAppendTo,
00320                                     FieldPosition& pos,
00321                                     UErrorCode& status) const;
00322 
00332     UnicodeString& format(UDate date,
00333                           UnicodeString& result,
00334                           FieldPosition& fieldPosition) const;
00335 
00344     UnicodeString& format(const Formattable& obj,
00345                           UnicodeString& result,
00346                           UErrorCode& status) const;
00347 
00355     UnicodeString& format(UDate date, UnicodeString& result) const;
00356 
00376     virtual void parse( const UnicodeString& text,
00377                         Calendar& cal,
00378                         ParsePosition& pos) const;
00379 
00399     UDate parse( const UnicodeString& text,
00400                  ParsePosition& pos) const;
00401 
00402 
00418     virtual UDate parse( const UnicodeString& text,
00419                         UErrorCode& status) const;
00420 
00437     virtual void set2DigitYearStart(UDate d, UErrorCode& status);
00438 
00454     UDate get2DigitYearStart(UErrorCode& status) const;
00455 
00462     virtual UnicodeString& toPattern(UnicodeString& result) const;
00463 
00480     virtual UnicodeString& toLocalizedPattern(UnicodeString& result,
00481                                               UErrorCode& status) const;
00482 
00491     virtual void applyPattern(const UnicodeString& pattern);
00492 
00503     virtual void applyLocalizedPattern(const UnicodeString& pattern,
00504                                        UErrorCode& status);
00505 
00514     virtual const DateFormatSymbols* getDateFormatSymbols(void) const;
00515 
00522     virtual void adoptDateFormatSymbols(DateFormatSymbols* newFormatSymbols);
00523 
00529     virtual void setDateFormatSymbols(const DateFormatSymbols& newFormatSymbols);
00530 
00542     static UClassID getStaticClassID(void) { return (UClassID)&fgClassID; }
00543 
00555     virtual UClassID getDynamicClassID(void) const { return getStaticClassID(); }
00556 
00557 private:
00558     static const char fgClassID;
00559 
00560     static const char fgDateTimePatternsTag[];   // resource bundle tag for default date and time patterns
00561 
00562     static const UChar fgDefaultPattern[];    // date/time pattern of last resort
00563 
00564     friend class DateFormat;
00565 
00578     //int32_t getZoneIndex(const DateFormatSymbols&, const UnicodeString& ID) const;
00579 
00580     void initializeDefaultCentury(void);
00581 
00590     SimpleDateFormat(EStyle timeStyle, EStyle dateStyle, const Locale& locale, UErrorCode& status);
00591 
00600     SimpleDateFormat(const Locale& locale, UErrorCode& status); // Use default pattern
00601 
00621     UnicodeString& subFormat(   UnicodeString& result,
00622                                 UChar ch,
00623                                 int32_t count,
00624                                 int32_t beginOffset,
00625                                 FieldPosition& pos,
00626                                 Calendar& cal,
00627                                 UErrorCode& status) const; // in case of illegal argument
00628 
00639     UnicodeString& zeroPaddingNumber(UnicodeString& result,
00640                                      int32_t value,
00641                                      int32_t minDigits,
00642                                      int32_t maxDigits) const;
00643 
00653     void construct(EStyle timeStyle, EStyle dateStyle, const Locale& locale, UErrorCode& status);
00654 
00661     void initialize(const Locale& locale, UErrorCode& status);
00662 
00675     int32_t matchString(const UnicodeString& text, int32_t start, Calendar::EDateFields field,
00676                         const UnicodeString* stringArray, int32_t stringArrayCount, Calendar& cal) const;
00677 
00692     int32_t subParse(const UnicodeString& text, int32_t& start, UChar ch, int32_t count,
00693                      UBool obeyCount, UBool ambiguousYear[], Calendar& cal) const;
00694 
00702     //UBool subParseLong(const UnicodeString& text, ParsePosition& pos, int32_t& value) const;
00703 
00716     static void translatePattern(const UnicodeString& originalPattern,
00717                                 UnicodeString& translatedPattern,
00718                                 const UnicodeString& from,
00719                                 const UnicodeString& to,
00720                                 UErrorCode& status);
00725     //int32_t getZoneIndex(const UnicodeString& ID) const;
00726 
00734     void         parseAmbiguousDatesAsAfter(UDate startDate, UErrorCode& status);
00735 
00742     UDate         internalGetDefaultCenturyStart(void) const;
00743 
00750     int32_t          internalGetDefaultCenturyStartYear(void) const;
00751 
00756     static void  initializeSystemDefaultCentury(void);
00757 
00761     // For time zones that have no names, use strings GMT+minutes and
00762     // GMT-minutes. For instance, in France the time zone is GMT+60.
00763     static const UChar fgGmtPlus[];
00764     static const UChar fgGmtMinus[];
00765     static const UChar fgGmt[];
00766 
00770     static const Calendar::EDateFields fgPatternIndexToCalendarField[];
00771 
00775     static const DateFormat::EField fgPatternIndexToDateFormatField[];
00776 
00780     UnicodeString       fPattern;
00781 
00786     DateFormatSymbols*  fSymbols;   // Owned
00787 
00796     UDate                fDefaultCenturyStart;
00797 
00801     /*transient*/ int32_t   fDefaultCenturyStartYear;
00802 
00809     static UDate         fgSystemDefaultCenturyStart;
00810 
00814     static int32_t          fgSystemDefaultCenturyStartYear;
00815 
00819     static const int32_t    fgSystemDefaultCenturyYear;
00820 
00821 public:
00826     static const UDate        fgSystemDefaultCentury;
00827 };
00828 
00829 inline UDate
00830 SimpleDateFormat::get2DigitYearStart(UErrorCode& /*status*/) const
00831 {
00832     return fDefaultCenturyStart;
00833 }
00834 
00835 inline UnicodeString&
00836 SimpleDateFormat::format(const Formattable& obj,
00837                          UnicodeString& result,
00838                          UErrorCode& status) const {
00839     // Don't use Format:: - use immediate base class only,
00840     // in case immediate base modifies behavior later.
00841     return DateFormat::format(obj, result, status);
00842 }
00843 
00844 inline UnicodeString&
00845 SimpleDateFormat::format(UDate date,
00846                          UnicodeString& result,
00847                          FieldPosition& fieldPosition) const {
00848     // Don't use Format:: - use immediate base class only,
00849     // in case immediate base modifies behavior later.
00850     return DateFormat::format(date, result, fieldPosition);
00851 }
00852 
00853 inline UnicodeString&
00854 SimpleDateFormat::format(UDate date, UnicodeString& result) const {
00855     return DateFormat::format(date, result);
00856 }
00857 
00858 U_NAMESPACE_END
00859 
00860 #endif // _SMPDTFMT
00861 //eof

Generated on Thu Aug 15 14:13:28 2002 for ICU 2.2 by doxygen1.2.11.1 written by Dimitri van Heesch, © 1997-2001