smpdtfmt.h

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00001 /*
00002 * Copyright (C) 1997-2006, 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 
00033 #if !UCONFIG_NO_FORMATTING
00034 
00035 #include "unicode/datefmt.h"
00036 
00037 U_NAMESPACE_BEGIN
00038 
00039 class DateFormatSymbols;
00040 class DateFormat;
00041 class MessageFormat;
00042 
00207 class U_I18N_API SimpleDateFormat: public DateFormat {
00208 public:
00218     SimpleDateFormat(UErrorCode& status);
00219 
00231     SimpleDateFormat(const UnicodeString& pattern,
00232                      UErrorCode& status);
00233 
00246     SimpleDateFormat(const UnicodeString& pattern,
00247                      const Locale& locale,
00248                      UErrorCode& status);
00249 
00259     SimpleDateFormat(const UnicodeString& pattern,
00260                      DateFormatSymbols* formatDataToAdopt,
00261                      UErrorCode& status);
00262 
00272     SimpleDateFormat(const UnicodeString& pattern,
00273                      const DateFormatSymbols& formatData,
00274                      UErrorCode& status);
00275 
00280     SimpleDateFormat(const SimpleDateFormat&);
00281 
00286     SimpleDateFormat& operator=(const SimpleDateFormat&);
00287 
00292     virtual ~SimpleDateFormat();
00293 
00300     virtual Format* clone(void) const;
00301 
00309     virtual UBool operator==(const Format& other) const;
00310 
00327     virtual UnicodeString& format(  Calendar& cal,
00328                                     UnicodeString& appendTo,
00329                                     FieldPosition& pos) const;
00330 
00350     virtual UnicodeString& format(  const Formattable& obj,
00351                                     UnicodeString& appendTo,
00352                                     FieldPosition& pos,
00353                                     UErrorCode& status) const;
00354 
00365     UnicodeString& format(UDate date,
00366                           UnicodeString& appendTo,
00367                           FieldPosition& fieldPosition) const;
00368 
00378     UnicodeString& format(const Formattable& obj,
00379                           UnicodeString& appendTo,
00380                           UErrorCode& status) const;
00381 
00390     UnicodeString& format(UDate date, UnicodeString& appendTo) const;
00391 
00411     virtual void parse( const UnicodeString& text,
00412                         Calendar& cal,
00413                         ParsePosition& pos) const;
00414 
00434     UDate parse( const UnicodeString& text,
00435                  ParsePosition& pos) const;
00436 
00437 
00453     virtual UDate parse( const UnicodeString& text,
00454                         UErrorCode& status) const;
00455 
00472     virtual void set2DigitYearStart(UDate d, UErrorCode& status);
00473 
00489     UDate get2DigitYearStart(UErrorCode& status) const;
00490 
00497     virtual UnicodeString& toPattern(UnicodeString& result) const;
00498 
00515     virtual UnicodeString& toLocalizedPattern(UnicodeString& result,
00516                                               UErrorCode& status) const;
00517 
00526     virtual void applyPattern(const UnicodeString& pattern);
00527 
00538     virtual void applyLocalizedPattern(const UnicodeString& pattern,
00539                                        UErrorCode& status);
00540 
00549     virtual const DateFormatSymbols* getDateFormatSymbols(void) const;
00550 
00557     virtual void adoptDateFormatSymbols(DateFormatSymbols* newFormatSymbols);
00558 
00564     virtual void setDateFormatSymbols(const DateFormatSymbols& newFormatSymbols);
00565 
00577     static UClassID U_EXPORT2 getStaticClassID(void);
00578 
00590     virtual UClassID getDynamicClassID(void) const;
00591 
00601     virtual void adoptCalendar(Calendar* calendarToAdopt);
00602 
00603 private:
00604     friend class DateFormat;
00605 
00606     void initializeDefaultCentury(void);
00607 
00608     SimpleDateFormat(); // default constructor not implemented
00609 
00618     SimpleDateFormat(EStyle timeStyle, EStyle dateStyle, const Locale& locale, UErrorCode& status);
00619 
00628     SimpleDateFormat(const Locale& locale, UErrorCode& status); // Use default pattern
00629 
00646     void subFormat(             UnicodeString &appendTo,
00647                                 UChar ch,
00648                                 int32_t count,
00649                                 FieldPosition& pos,
00650                                 Calendar& cal,
00651                                 UErrorCode& status) const; // in case of illegal argument
00652 
00665     void zeroPaddingNumber(          UnicodeString &appendTo,
00666                                      int32_t value,
00667                                      int32_t minDigits,
00668                                      int32_t maxDigits) const;
00669 
00674     static UBool isNumeric(UChar formatChar, int32_t count);
00675 
00683     Calendar *initializeCalendar(TimeZone* adoptZone, const Locale& locale, UErrorCode& status);
00684 
00691     void initializeSymbols(const Locale& locale, Calendar* calendar, UErrorCode& status);
00692 
00702     void construct(EStyle timeStyle, EStyle dateStyle, const Locale& locale, UErrorCode& status);
00703 
00710     void initialize(const Locale& locale, UErrorCode& status);
00711 
00724     int32_t matchString(const UnicodeString& text, int32_t start, UCalendarDateFields field,
00725                         const UnicodeString* stringArray, int32_t stringArrayCount, Calendar& cal) const;
00726 
00739     int32_t matchQuarterString(const UnicodeString& text, int32_t start, UCalendarDateFields field,
00740                                const UnicodeString* stringArray, int32_t stringArrayCount, Calendar& cal) const;
00741 
00756     int32_t subParse(const UnicodeString& text, int32_t& start, UChar ch, int32_t count,
00757                      UBool obeyCount, UBool allowNegative, UBool ambiguousYear[], Calendar& cal) const;
00758 
00759     void parseInt(const UnicodeString& text,
00760                   Formattable& number,
00761                   ParsePosition& pos,
00762                   UBool allowNegative) const;
00763 
00764     void parseInt(const UnicodeString& text,
00765                   Formattable& number,
00766                   int32_t maxDigits,
00767                   ParsePosition& pos,
00768                   UBool allowNegative) const;
00769 
00782     static void translatePattern(const UnicodeString& originalPattern,
00783                                 UnicodeString& translatedPattern,
00784                                 const UnicodeString& from,
00785                                 const UnicodeString& to,
00786                                 UErrorCode& status);
00787 
00795     void         parseAmbiguousDatesAsAfter(UDate startDate, UErrorCode& status);
00796     
00800     void appendGMT(UnicodeString &appendTo, Calendar& cal, UErrorCode& status) const;
00801     void formatGMTDefault(UnicodeString &appendTo, int32_t offset) const;
00802     int32_t parseGMT(const UnicodeString &text, ParsePosition &pos) const;
00803     int32_t parseGMTDefault(const UnicodeString &text, ParsePosition &pos) const;
00804     UBool isDefaultGMTFormat() const;
00805 
00806     void formatRFC822TZ(UnicodeString &appendTo, int32_t offset) const;
00807 
00811     void initGMTFormatters(UErrorCode &status);
00812 
00816     static const UCalendarDateFields fgPatternIndexToCalendarField[];
00817 
00821     static const UDateFormatField fgPatternIndexToDateFormatField[];
00822 
00826     UnicodeString       fPattern;
00827 
00831     Locale              fLocale;
00832 
00837     DateFormatSymbols*  fSymbols;   // Owned
00838 
00847     UDate                fDefaultCenturyStart;
00848 
00852     /*transient*/ int32_t   fDefaultCenturyStartYear;
00853 
00854     enum ParsedTZType {
00855         TZTYPE_UNK,
00856         TZTYPE_STD,
00857         TZTYPE_DST
00858     };
00859 
00860     ParsedTZType tztype; // here to avoid api change
00861 
00862     /*
00863      * MessageFormat instances used for localized GMT format
00864      */
00865     MessageFormat   **fGMTFormatters;
00866 
00867     UBool fHaveDefaultCentury;
00868 };
00869 
00870 inline UDate
00871 SimpleDateFormat::get2DigitYearStart(UErrorCode& /*status*/) const
00872 {
00873     return fDefaultCenturyStart;
00874 }
00875 
00876 inline UnicodeString&
00877 SimpleDateFormat::format(const Formattable& obj,
00878                          UnicodeString& appendTo,
00879                          UErrorCode& status) const {
00880     // Don't use Format:: - use immediate base class only,
00881     // in case immediate base modifies behavior later.
00882     return DateFormat::format(obj, appendTo, status);
00883 }
00884 
00885 inline UnicodeString&
00886 SimpleDateFormat::format(UDate date,
00887                          UnicodeString& appendTo,
00888                          FieldPosition& fieldPosition) const {
00889     // Don't use Format:: - use immediate base class only,
00890     // in case immediate base modifies behavior later.
00891     return DateFormat::format(date, appendTo, fieldPosition);
00892 }
00893 
00894 inline UnicodeString&
00895 SimpleDateFormat::format(UDate date, UnicodeString& appendTo) const {
00896     return DateFormat::format(date, appendTo);
00897 }
00898 
00899 U_NAMESPACE_END
00900 
00901 #endif /* #if !UCONFIG_NO_FORMATTING */
00902 
00903 #endif // _SMPDTFMT
00904 //eof

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