469 lines
16 KiB
C++
469 lines
16 KiB
C++
/*
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********************************************************************************
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* Copyright (C) 1997-2001, International Business Machines
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* Corporation and others. All Rights Reserved.
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********************************************************************************
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*
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* File DTFMTSYM.H
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*
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* Modification History:
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*
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* Date Name Description
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* 02/19/97 aliu Converted from java.
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* 07/21/98 stephen Added getZoneIndex()
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* Changed to match C++ conventions
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********************************************************************************
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*/
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#ifndef DTFMTSYM_H
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#define DTFMTSYM_H
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/uobject.h"
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#include "unicode/locid.h"
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#include "unicode/resbund.h"
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U_NAMESPACE_BEGIN
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/* forward declaration */
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class SimpleDateFormat;
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/**
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* DateFormatSymbols is a public class for encapsulating localizable date-time
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* formatting data -- including timezone data. DateFormatSymbols is used by
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* DateFormat and SimpleDateFormat.
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* <P>
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* Rather than first creating a DateFormatSymbols to get a date-time formatter
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* by using a SimpleDateFormat constructor, clients are encouraged to create a
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* date-time formatter using the getTimeInstance(), getDateInstance(), or
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* getDateTimeInstance() method in DateFormat. Each of these methods can return a
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* date/time formatter initialized with a default format pattern along with the
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* date-time formatting data for a given or default locale. After a formatter is
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* created, clients may modify the format pattern using the setPattern function
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* as so desired. For more information on using these formatter factory
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* functions, see DateFormat.
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* <P>
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* If clients decide to create a date-time formatter with a particular format
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* pattern and locale, they can do so with new SimpleDateFormat(aPattern,
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* new DateFormatSymbols(aLocale)). This will load the appropriate date-time
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* formatting data from the locale.
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* <P>
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* DateFormatSymbols objects are clonable. When clients obtain a
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* DateFormatSymbols object, they can feel free to modify the date-time
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* formatting data as necessary. For instance, clients can
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* replace the localized date-time format pattern characters with the ones that
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* they feel easy to remember. Or they can change the representative cities
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* originally picked by default to using their favorite ones.
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* <P>
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* New DateFormatSymbols sub-classes may be added to support SimpleDateFormat
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* for date-time formatting for additional locales.
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*/
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class U_I18N_API DateFormatSymbols : public UObject {
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public:
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/**
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* Construct a DateFormatSymbols object by loading format data from
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* resources for the default locale.
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* <P>
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* NOTE: This constructor will never fail; if it cannot get resource
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* data for the default locale, it will return a last-resort object
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* based on hard-coded strings.
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*
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* @param status Output param set to success of failure. Failure
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* results if the resources for the default cannot be
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* found or cannot be loaded
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* @stable ICU 2.0
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*/
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DateFormatSymbols(UErrorCode& status);
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/**
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* Construct a DateFormatSymbols object by loading format data from
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* resources for the given locale.
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*
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* @param locale Locale to load format data from.
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* @param status Output param set to success of failure. Failure
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* results if the resources for the locale cannot be
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* found or cannot be loaded
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* @stable ICU 2.0
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*/
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DateFormatSymbols(const Locale& locale,
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UErrorCode& status);
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/**
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* Copy constructor.
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* @stable ICU 2.0
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*/
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DateFormatSymbols(const DateFormatSymbols&);
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/**
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* Assignment operator.
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* @stable ICU 2.0
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*/
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DateFormatSymbols& operator=(const DateFormatSymbols&);
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/**
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* Destructor. This is nonvirtual because this class is not designed to be
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* subclassed.
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* @stable ICU 2.0
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*/
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~DateFormatSymbols();
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/**
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* Return true if another object is semantically equal to this one.
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*
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* @param other the DateFormatSymbols object to be compared with.
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* @return true if other is semantically equal to this.
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* @stable ICU 2.0
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*/
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UBool operator==(const DateFormatSymbols& other) const;
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/**
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* Return true if another object is semantically unequal to this one.
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*
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* @param other the DateFormatSymbols object to be compared with.
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* @return true if other is semantically unequal to this.
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* @stable ICU 2.0
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*/
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UBool operator!=(const DateFormatSymbols& other) const { return !operator==(other); }
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/**
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* Gets era strings. For example: "AD" and "BC".
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*
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* @param count Filled in with length of the array.
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* @return the era strings.
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* @stable ICU 2.0
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*/
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const UnicodeString* getEras(int32_t& count) const;
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/**
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* Sets era strings. For example: "AD" and "BC".
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* @param eras Array of era strings (DateFormatSymbols retains ownership.)
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* @param count Filled in with length of the array.
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* @stable ICU 2.0
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*/
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void setEras(const UnicodeString* eras, int32_t count);
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/**
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* Gets month strings. For example: "January", "February", etc.
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* @param count Filled in with length of the array.
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* @return the month strings. (DateFormatSymbols retains ownership.)
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* @stable ICU 2.0
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*/
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const UnicodeString* getMonths(int32_t& count) const;
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/**
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* Sets month strings. For example: "January", "February", etc.
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*
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* @param months the new month strings. (not adopted; caller retains ownership)
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* @param count Filled in with length of the array.
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* @stable ICU 2.0
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*/
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void setMonths(const UnicodeString* months, int32_t count);
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/**
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* Gets short month strings. For example: "Jan", "Feb", etc.
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*
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* @param count Filled in with length of the array.
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* @return the short month strings. (DateFormatSymbols retains ownership.)
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* @stable ICU 2.0
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*/
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const UnicodeString* getShortMonths(int32_t& count) const;
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/**
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* Sets short month strings. For example: "Jan", "Feb", etc.
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* @param count Filled in with length of the array.
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* @param shortMonths the new short month strings. (not adopted; caller retains ownership)
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* @stable ICU 2.0
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*/
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void setShortMonths(const UnicodeString* shortMonths, int32_t count);
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/**
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* Gets weekday strings. For example: "Sunday", "Monday", etc.
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* @param count Filled in with length of the array.
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* @return the weekday strings. (DateFormatSymbols retains ownership.)
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* @stable ICU 2.0
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*/
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const UnicodeString* getWeekdays(int32_t& count) const;
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/**
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* Sets weekday strings. For example: "Sunday", "Monday", etc.
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* @param weekdays the new weekday strings. (not adopted; caller retains ownership)
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* @param count Filled in with length of the array.
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* @stable ICU 2.0
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*/
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void setWeekdays(const UnicodeString* weekdays, int32_t count);
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/**
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* Gets short weekday strings. For example: "Sun", "Mon", etc.
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* @param count Filled in with length of the array.
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* @return the short weekday strings. (DateFormatSymbols retains ownership.)
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* @stable ICU 2.0
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*/
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const UnicodeString* getShortWeekdays(int32_t& count) const;
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/**
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* Sets short weekday strings. For example: "Sun", "Mon", etc.
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* @param shortWeekdays the new short weekday strings. (not adopted; caller retains ownership)
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* @param count Filled in with length of the array.
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* @stable ICU 2.0
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*/
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void setShortWeekdays(const UnicodeString* shortWeekdays, int32_t count);
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/**
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* Gets AM/PM strings. For example: "AM" and "PM".
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* @param count Filled in with length of the array.
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* @return the weekday strings. (DateFormatSymbols retains ownership.)
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* @stable ICU 2.0
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*/
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const UnicodeString* getAmPmStrings(int32_t& count) const;
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/**
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* Sets ampm strings. For example: "AM" and "PM".
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* @param ampms the new ampm strings. (not adopted; caller retains ownership)
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* @param count Filled in with length of the array.
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* @stable ICU 2.0
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*/
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void setAmPmStrings(const UnicodeString* ampms, int32_t count);
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/**
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* Gets timezone strings. These strings are stored in a 2-dimensional array.
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* @param rowCount Output param to receive number of rows.
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* @param columnCount Output param to receive number of columns.
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* @return The timezone strings as a 2-d array. (DateFormatSymbols retains ownership.)
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* @stable ICU 2.0
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*/
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const UnicodeString** getZoneStrings(int32_t& rowCount, int32_t& columnCount) const;
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/**
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* Sets timezone strings. These strings are stored in a 2-dimensional array.
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* @param strings The timezone strings as a 2-d array to be copied. (not adopted; caller retains ownership)
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* @param rowCount The number of rows (count of first index).
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* @param columnCount The number of columns (count of second index).
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* @stable ICU 2.0
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*/
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void setZoneStrings(const UnicodeString* const* strings, int32_t rowCount, int32_t columnCount);
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#ifdef ICU_DATEFORMATSYMBOLS_USE_DEPRECATES
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/**
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* Get the non-localized date-time pattern characters.
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* @deprecated remove after Aug 2002. Use getPatternUChars instead.
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*/
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static const UnicodeString& getPatternChars(void);
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#endif /* ICU_DATEFORMATSYMBOLS_USE_DEPRECATES */
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/**
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* Get the non-localized date-time pattern characters.
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* @return the non-localized date-time pattern characters
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* @stable ICU 2.0
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*/
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static const UChar *getPatternUChars(void);
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/**
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* Gets localized date-time pattern characters. For example: 'u', 't', etc.
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* @param result Output param which will receive the localized date-time pattern characters.
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* @return A reference to 'result'.
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* @stable ICU 2.0
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*/
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UnicodeString& getLocalPatternChars(UnicodeString& result) const;
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/**
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* Sets localized date-time pattern characters. For example: 'u', 't', etc.
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* @param newLocalPatternChars the new localized date-time
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* pattern characters.
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* @stable ICU 2.0
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*/
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void setLocalPatternChars(const UnicodeString& newLocalPatternChars);
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/**
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* ICU "poor man's RTTI", returns a UClassID for the actual class.
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*
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* @draft ICU 2.2
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*/
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virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
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/**
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* ICU "poor man's RTTI", returns a UClassID for this class.
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*
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* @draft ICU 2.2
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*/
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static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
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private:
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/**
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* Tag names used by this class.
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*/
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static const char fgErasTag[]; // resource bundle tag for era names
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static const char fgMonthNamesTag[]; // resource bundle tag for month names
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static const char fgMonthAbbreviationsTag[]; // resource bundle tag for month abbreviations
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static const char fgDayNamesTag[]; // resource bundle tag for day names
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static const char fgDayAbbreviationsTag[]; // resource bundle tag for day abbreviations
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static const char fgAmPmMarkersTag[]; // resource bundle tag for AM/PM strings
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static const char fgZoneStringsTag[]; // resource bundle tag for time zone names
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static const char fgLocalPatternCharsTag[]; // resource bundle tag for localized pattern characters
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friend class SimpleDateFormat;
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friend class DateFormatSymbolsSingleSetter; // see udat.cpp
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/**
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* Era strings. For example: "AD" and "BC".
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*/
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UnicodeString* fEras;
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int32_t fErasCount;
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/**
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* Month strings. For example: "January", "February", etc.
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*/
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UnicodeString* fMonths;
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int32_t fMonthsCount;
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/**
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* Short month strings. For example: "Jan", "Feb", etc.
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*/
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UnicodeString* fShortMonths;
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int32_t fShortMonthsCount;
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/**
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* Weekday strings. For example: "Sunday", "Monday", etc.
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*/
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UnicodeString* fWeekdays;
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int32_t fWeekdaysCount;
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/**
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* Short weekday strings. For example: "Sun", "Mon", etc.
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*/
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UnicodeString* fShortWeekdays;
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int32_t fShortWeekdaysCount;
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/**
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* Ampm strings. For example: "AM" and "PM".
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*/
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UnicodeString* fAmPms;
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int32_t fAmPmsCount;
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/**
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* The format data of all the timezones in this locale.
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*/
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UnicodeString** fZoneStrings;
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int32_t fZoneStringsRowCount;
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int32_t fZoneStringsColCount;
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/**
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* Localized date-time pattern characters. For example: use 'u' as 'y'.
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*/
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UnicodeString fLocalPatternChars;
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/**
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* The address of this static class variable serves as this class's ID
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* for ICU "poor man's RTTI".
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*/
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static const char fgClassID;
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private:
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/* Sizes for the last resort string arrays */
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typedef enum LastResortSize {
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kMonthNum = 13,
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kMonthLen = 3,
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kDayNum = 8,
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kDayLen = 2,
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kAmPmNum = 2,
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kAmPmLen = 3,
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kEraNum = 2,
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kEraLen = 3,
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kZoneNum = 5,
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kZoneLen = 4
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} LastResortSize;
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void initField(UnicodeString **field, int32_t& length, const ResourceBundle data, UErrorCode &status);
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void initField(UnicodeString **field, int32_t& length, const UChar *data, LastResortSize numStr, LastResortSize strLen, UErrorCode &status);
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/**
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* Called by the constructors to actually load data from the resources
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*
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* @param locale The locale to get symbols for.
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* @param status Input/output parameter, set to success or
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* failure code upon return.
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* @param useLastResortData determine if use last resort data
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*/
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void initializeData(const Locale&, UErrorCode& status, UBool useLastResortData = FALSE);
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/**
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* Copy or alias an array in another object, as appropriate.
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*
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* @param dstArray the copy destination array.
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* @param dstCount fill in with the lenth of 'dstArray'.
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* @param srcArray the source array to be copied.
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* @param srcCount the length of items to be copied from the 'srcArray'.
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*/
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static void assignArray(UnicodeString*& dstArray,
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int32_t& dstCount,
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const UnicodeString* srcArray,
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int32_t srcCount);
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/**
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* Return true if the given arrays' contents are equal, or if the arrays are
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* identical (pointers are equal).
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*
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* @param array1 one array to be compared with.
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* @param array2 another array to be compared with.
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* @param count the length of items to be copied.
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* @return true if the given arrays' contents are equal, or if the arrays are
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* identical (pointers are equal).
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*/
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static UBool arrayCompare(const UnicodeString* array1,
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const UnicodeString* array2,
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int32_t count);
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/**
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* Create a copy, in fZoneStrings, of the given zone strings array. The
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* member variables fZoneStringsRowCount and fZoneStringsColCount should be
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* set already by the caller.
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*/
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void createZoneStrings(const UnicodeString *const * otherStrings);
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/**
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* Package private: used by SimpleDateFormat
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* Gets the index for the given time zone ID to obtain the timezone
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* strings for formatting. The time zone ID is just for programmatic
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* lookup. NOT LOCALIZED!!!
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* @param ID the given time zone ID.
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* @return the index of the given time zone ID. Returns -1 if
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* the given time zone ID can't be located in the DateFormatSymbols object.
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* @see java.util.SimpleTimeZone
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*/
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int32_t getZoneIndex(const UnicodeString& ID) const;
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// Internal method; see source for documentation
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int32_t _getZoneIndex(const UnicodeString& id) const;
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/**
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* Delete all the storage owned by this object.
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*/
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void dispose(void);
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/**
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* Copy all of the other's data to this.
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* @param other the object to be copied.
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*/
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void copyData(const DateFormatSymbols& other);
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/**
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* Delete just the zone strings.
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*/
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void disposeZoneStrings(void);
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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 // _DTFMTSYM
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//eof
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