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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2009-2015, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
#ifndef CURRPINF_H
#define CURRPINF_H
#include "unicode/utypes.h"
#if U_SHOW_CPLUSPLUS_API
/**
* \file
* \brief C++ API: Currency Plural Information used by Decimal Format
*/
#if !UCONFIG_NO_FORMATTING
#include "unicode/unistr.h"
U_NAMESPACE_BEGIN
class Locale;
class PluralRules;
class Hashtable;
/**
* This class represents the information needed by
* DecimalFormat to format currency plural,
* such as "3.00 US dollars" or "1.00 US dollar".
* DecimalFormat creates for itself an instance of
* CurrencyPluralInfo from its locale data.
* If you need to change any of these symbols, you can get the
* CurrencyPluralInfo object from your
* DecimalFormat and modify it.
*
* Following are the information needed for currency plural format and parse:
* locale information,
* plural rule of the locale,
* currency plural pattern of the locale.
*
* @stable ICU 4.2
*/
class U_I18N_API CurrencyPluralInfo : public UObject {
public:
/**
* Create a CurrencyPluralInfo object for the default locale.
* @param status output param set to success/failure code on exit
* @stable ICU 4.2
*/
CurrencyPluralInfo(UErrorCode& status);
/**
* Create a CurrencyPluralInfo object for the given locale.
* @param locale the locale
* @param status output param set to success/failure code on exit
* @stable ICU 4.2
*/
CurrencyPluralInfo(const Locale& locale, UErrorCode& status);
/**
* Copy constructor
*
* @stable ICU 4.2
*/
CurrencyPluralInfo(const CurrencyPluralInfo& info);
/**
* Assignment operator
*
* @stable ICU 4.2
*/
CurrencyPluralInfo& operator=(const CurrencyPluralInfo& info);
/**
* Destructor
*
* @stable ICU 4.2
*/
virtual ~CurrencyPluralInfo();
/**
* Equal operator.
*
* @stable ICU 4.2
*/
bool operator==(const CurrencyPluralInfo& info) const;
/**
* Not equal operator
*
* @stable ICU 4.2
*/
bool operator!=(const CurrencyPluralInfo& info) const;
/**
* Clone
*
* @stable ICU 4.2
*/
CurrencyPluralInfo* clone() const;
/**
* Gets plural rules of this locale, used for currency plural format
*
* @return plural rule
* @stable ICU 4.2
*/
const PluralRules* getPluralRules() const;
/**
* Given a plural count, gets currency plural pattern of this locale,
* used for currency plural format
*
* @param pluralCount currency plural count
* @param result output param to receive the pattern
* @return a currency plural pattern based on plural count
* @stable ICU 4.2
*/
UnicodeString& getCurrencyPluralPattern(const UnicodeString& pluralCount,
UnicodeString& result) const;
/**
* Get locale
*
* @return locale
* @stable ICU 4.2
*/
const Locale& getLocale() const;
/**
* Set plural rules.
* The plural rule is set when CurrencyPluralInfo
* instance is created.
* You can call this method to reset plural rules only if you want
* to modify the default plural rule of the locale.
*
* @param ruleDescription new plural rule description
* @param status output param set to success/failure code on exit
* @stable ICU 4.2
*/
void setPluralRules(const UnicodeString& ruleDescription,
UErrorCode& status);
/**
* Set currency plural pattern.
* The currency plural pattern is set when CurrencyPluralInfo
* instance is created.
* You can call this method to reset currency plural pattern only if
* you want to modify the default currency plural pattern of the locale.
*
* @param pluralCount the plural count for which the currency pattern will
* be overridden.
* @param pattern the new currency plural pattern
* @param status output param set to success/failure code on exit
* @stable ICU 4.2
*/
void setCurrencyPluralPattern(const UnicodeString& pluralCount,
const UnicodeString& pattern,
UErrorCode& status);
/**
* Set locale
*
* @param loc the new locale to set
* @param status output param set to success/failure code on exit
* @stable ICU 4.2
*/
void setLocale(const Locale& loc, UErrorCode& status);
/**
* ICU "poor man's RTTI", returns a UClassID for the actual class.
*
* @stable ICU 4.2
*/
virtual UClassID getDynamicClassID() const override;
/**
* ICU "poor man's RTTI", returns a UClassID for this class.
*
* @stable ICU 4.2
*/
static UClassID U_EXPORT2 getStaticClassID();
private:
friend class DecimalFormat;
friend class DecimalFormatImpl;
void initialize(const Locale& loc, UErrorCode& status);
void setupCurrencyPluralPattern(const Locale& loc, UErrorCode& status);
/*
* delete hash table
*
* @param hTable hash table to be deleted
*/
void deleteHash(Hashtable* hTable);
/*
* initialize hash table
*
* @param status output param set to success/failure code on exit
* @return hash table initialized
*/
Hashtable* initHash(UErrorCode& status);
/**
* copy hash table
*
* @param source the source to copy from
* @param target the target to copy to
* @param status error code
*/
void copyHash(const Hashtable* source, Hashtable* target, UErrorCode& status);
//-------------------- private data member ---------------------
// map from plural count to currency plural pattern, for example
// a plural pattern defined in "CurrencyUnitPatterns" is
// "one{{0} {1}}", in which "one" is a plural count
// and "{0} {1}" is a currency plural pattern".
// The currency plural pattern saved in this mapping is the pattern
// defined in "CurrencyUnitPattern" by replacing
// {0} with the number format pattern,
// and {1} with 3 currency sign.
Hashtable* fPluralCountToCurrencyUnitPattern;
/*
* The plural rule is used to format currency plural name,
* for example: "3.00 US Dollars".
* If there are 3 currency signs in the currency pattern,
* the 3 currency signs will be replaced by currency plural name.
*/
PluralRules* fPluralRules;
// locale
Locale* fLocale;
private:
/**
* An internal status variable used to indicate that the object is in an 'invalid' state.
* Used by copy constructor, the assignment operator and the clone method.
*/
UErrorCode fInternalStatus;
};
inline bool
CurrencyPluralInfo::operator!=(const CurrencyPluralInfo& info) const {
return !operator==(info);
}
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_FORMATTING */
#endif /* U_SHOW_CPLUSPLUS_API */
#endif // _CURRPINFO
//eof