273 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			273 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			C++
		
	
	
	
| // © 2016 and later: Unicode, Inc. and others.
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| // License & terms of use: http://www.unicode.org/copyright.html
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| /*
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| *******************************************************************************
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| * Copyright (C) 2003 - 2013, International Business Machines Corporation and  *
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| * others. All Rights Reserved.                                                *
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| *******************************************************************************
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| */
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| 
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| #ifndef ETHPCCAL_H
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| #define ETHPCCAL_H
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| 
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| #include "unicode/utypes.h"
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| 
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| #if !UCONFIG_NO_FORMATTING
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| 
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| #include "unicode/calendar.h"
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| #include "cecal.h"
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| 
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| U_NAMESPACE_BEGIN
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| 
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| /**
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|  * Implement the Ethiopic calendar system.
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|  * @internal
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|  */
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| class EthiopicCalendar : public CECalendar {
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| 
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| public:
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|     /**
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|      * Calendar type - use Amete Alem era for all the time or not
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|      * @internal 
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|      */
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|     enum EEraType {
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|         AMETE_MIHRET_ERA,
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|         AMETE_ALEM_ERA
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|     };
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| 
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|     /**
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|      * Useful constants for EthiopicCalendar.
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|      * @internal
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|      */
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|     enum EMonths {
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|         /** 
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|          * Constant for መስከረም, the 1st month of the Ethiopic year.
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|          */
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|         MESKEREM,
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| 
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|         /** 
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|          * Constant for ጥቅምት, the 2nd month of the Ethiopic year.
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|          */
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|         TEKEMT,
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| 
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|         /** 
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|          * Constant for ኅዳር, the 3rd month of the Ethiopic year. 
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|          */
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|         HEDAR,
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| 
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|         /** 
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|          * Constant for ታኅሣሥ, the 4th month of the Ethiopic year. 
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|          */
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|         TAHSAS,
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| 
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|         /** 
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|          * Constant for ጥር, the 5th month of the Ethiopic year. 
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|          */
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|         TER,
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| 
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|         /** 
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|          * Constant for የካቲት, the 6th month of the Ethiopic year. 
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|          */
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|         YEKATIT,
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| 
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|         /** 
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|          * Constant for መጋቢት, the 7th month of the Ethiopic year. 
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|          */
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|         MEGABIT,
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| 
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|         /** 
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|          * Constant for ሚያዝያ, the 8th month of the Ethiopic year. 
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|          */
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|         MIAZIA,
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| 
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|         /** 
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|          * Constant for ግንቦት, the 9th month of the Ethiopic year. 
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|          */
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|         GENBOT,
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| 
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|         /** 
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|          * Constant for ሰኔ, the 10th month of the Ethiopic year. 
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|          */
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|         SENE,
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| 
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|         /** 
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|          * Constant for ሐምሌ, the 11th month of the Ethiopic year. 
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|          */
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|         HAMLE,
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| 
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|         /** 
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|          * Constant for ነሐሴ, the 12th month of the Ethiopic year. 
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|          */
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|         NEHASSA,
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| 
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|         /** 
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|          * Constant for ጳጉሜን, the 13th month of the Ethiopic year. 
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|          */
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|         PAGUMEN
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|     };
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| 
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|     enum EEras {
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|         AMETE_ALEM,     // Before the epoch
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|         AMETE_MIHRET    // After the epoch
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|     };
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| 
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|     /**
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|      * Constructs a EthiopicCalendar based on the current time in the default time zone
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|      * with the given locale.
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|      *
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|      * @param aLocale  The given locale.
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|      * @param success  Indicates the status of EthiopicCalendar object construction.
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|      *                 Returns U_ZERO_ERROR if constructed successfully.
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|      * @param type     Whether this Ethiopic calendar use Amete Mihrret (default) or
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|      *                 only use Amete Alem for all the time.
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|      * @internal
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|      */
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|     EthiopicCalendar(const Locale& aLocale, UErrorCode& success, EEraType type = AMETE_MIHRET_ERA);
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| 
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|     /**
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|      * Copy Constructor
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|      * @internal
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|      */
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|     EthiopicCalendar(const EthiopicCalendar& other);
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| 
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|     /**
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|      * Destructor.
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|      * @internal
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|      */
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|     virtual ~EthiopicCalendar();
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| 
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|     /**
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|      * Create and return a polymorphic copy of this calendar.
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|      * @return    return a polymorphic copy of this calendar.
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|      * @internal
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|      */
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|     virtual EthiopicCalendar* clone() const override;
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| 
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|     /**
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|      * return the calendar type, "ethiopic"
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|      * @return calendar type
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|      * @internal
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|      */
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|     virtual const char * getType() const override;
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| 
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|     /**
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|      * Set Alem or Mihret era.
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|      * @param onOff Set Amete Alem era if true, otherwise set Amete Mihret era.
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|      * @internal
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|      */
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|     void setAmeteAlemEra (UBool onOff);
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| 
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|     /**
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|      * Return true if this calendar is set to the Amete Alem era.
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|      * @return true if set to the Amete Alem era.
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|      * @internal
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|      */
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|     UBool isAmeteAlemEra() const;
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| 
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| protected:
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|     //-------------------------------------------------------------------------
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|     // Calendar framework
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|     //-------------------------------------------------------------------------
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| 
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|     /**
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|      * Return the extended year defined by the current fields.
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|      * @internal
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|      */
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|     virtual int32_t handleGetExtendedYear() override;
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| 
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|     /**
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|      * Compute fields from the JD
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|      * @internal
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|      */
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|     virtual void handleComputeFields(int32_t julianDay, UErrorCode &status) override;
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| 
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|     /**
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|      * Calculate the limit for a specified type of limit and field
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|      * @internal
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|      */
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|     virtual int32_t handleGetLimit(UCalendarDateFields field, ELimitType limitType) const override;
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| 
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|     /**
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|      * Returns the date of the start of the default century
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|      * @return start of century - in milliseconds since epoch, 1970
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|      * @internal
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|      */
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|     virtual UDate defaultCenturyStart() const override;
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| 
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|     /**
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|      * Returns the year in which the default century begins
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|      * @internal
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|      */
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|     virtual int32_t defaultCenturyStartYear() const override;
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| 
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|     /**
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|      * Return the date offset from Julian
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|      * @internal
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|      */
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|     virtual int32_t getJDEpochOffset() const override;
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| 
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| private:
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|     /**
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|      * When eraType is AMETE_ALEM_ERA, then this calendar use only AMETE_ALEM
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|      * for the era. Otherwise (default), this calendar uses both AMETE_ALEM
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|      * and AMETE_MIHRET.
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|      *
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|      * EXTENDED_YEAR        AMETE_ALEM_ERA     AMETE_MIHRET_ERA
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|      *             0       Amete Alem 5500      Amete Alem 5500
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|      *             1        Amete Mihret 1      Amete Alem 5501
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|      */
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|     EEraType eraType;
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| 
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| public:
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|     /**
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|      * Override Calendar Returns a unique class ID POLYMORPHICALLY. Pure virtual
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|      * override. This method is to implement a simple version of RTTI, since not all C++
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|      * compilers support genuine RTTI. Polymorphic operator==() and clone() methods call
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|      * this method.
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|      *
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|      * @return   The class ID for this object. All objects of a given class have the
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|      *           same class ID. Objects of other classes have different class IDs.
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|      * @internal
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|      */
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|     virtual UClassID getDynamicClassID(void) const override;
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| 
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|     /**
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|      * Return the class ID for this class. This is useful only for comparing to a return
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|      * value from getDynamicClassID(). For example:
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|      *
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|      *      Base* polymorphic_pointer = createPolymorphicObject();
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|      *      if (polymorphic_pointer->getDynamicClassID() ==
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|      *          Derived::getStaticClassID()) ...
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|      *
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|      * @return   The class ID for all objects of this class.
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|      * @internal
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|      */
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|     U_I18N_API static UClassID U_EXPORT2 getStaticClassID(void);  
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| 
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| #if 0
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| // We do not want to introduce this API in ICU4C.
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| // It was accidentally introduced in ICU4J as a public API.
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| 
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| public:
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|     //-------------------------------------------------------------------------
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|     // Calendar system Conversion methods...
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|     //-------------------------------------------------------------------------
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| 
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|     /**
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|      * Convert an Ethiopic year, month, and day to a Julian day.
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|      *
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|      * @param year the extended year
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|      * @param month the month
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|      * @param day the day
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|      * @return Julian day
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|      * @internal
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|      */
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|     int32_t ethiopicToJD(int32_t year, int32_t month, int32_t day);
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| #endif
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| };
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| 
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| U_NAMESPACE_END
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| #endif /* #if !UCONFIG_NO_FORMATTING */
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| #endif /* ETHPCCAL_H */
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| //eof
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