| // © 2016 and later: Unicode, Inc. and others. |
| // License & terms of use: http://www.unicode.org/copyright.html |
| /* |
| ******************************************************************************** |
| * Copyright (C) 1997-2016, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| ******************************************************************************** |
| * |
| * File DCFMTSYM.H |
| * |
| * Modification History: |
| * |
| * Date Name Description |
| * 02/19/97 aliu Converted from java. |
| * 03/18/97 clhuang Updated per C++ implementation. |
| * 03/27/97 helena Updated to pass the simple test after code review. |
| * 08/26/97 aliu Added currency/intl currency symbol support. |
| * 07/22/98 stephen Changed to match C++ style |
| * currencySymbol -> fCurrencySymbol |
| * Constants changed from CAPS to kCaps |
| * 06/24/99 helena Integrated Alan's NF enhancements and Java2 bug fixes |
| * 09/22/00 grhoten Marked deprecation tags with a pointer to replacement |
| * functions. |
| ******************************************************************************** |
| */ |
| |
| #ifndef DCFMTSYM_H |
| #define DCFMTSYM_H |
| |
| #include "unicode/utypes.h" |
| |
| #if U_SHOW_CPLUSPLUS_API |
| |
| #if !UCONFIG_NO_FORMATTING |
| |
| #include "unicode/uchar.h" |
| #include "unicode/uobject.h" |
| #include "unicode/locid.h" |
| #include "unicode/numsys.h" |
| #include "unicode/unum.h" |
| #include "unicode/unistr.h" |
| |
| /** |
| * \file |
| * \brief C++ API: Symbols for formatting numbers. |
| */ |
| |
| |
| U_NAMESPACE_BEGIN |
| |
| /** |
| * This class represents the set of symbols needed by DecimalFormat |
| * to format numbers. DecimalFormat creates for itself an instance of |
| * DecimalFormatSymbols from its locale data. If you need to change any |
| * of these symbols, you can get the DecimalFormatSymbols object from |
| * your DecimalFormat and modify it. |
| * <P> |
| * Here are the special characters used in the parts of the |
| * subpattern, with notes on their usage. |
| * <pre> |
| * \code |
| * Symbol Meaning |
| * 0 a digit |
| * # a digit, zero shows as absent |
| * . placeholder for decimal separator |
| * , placeholder for grouping separator. |
| * ; separates formats. |
| * - default negative prefix. |
| * % divide by 100 and show as percentage |
| * X any other characters can be used in the prefix or suffix |
| * ' used to quote special characters in a prefix or suffix. |
| * \endcode |
| * </pre> |
| * [Notes] |
| * <P> |
| * If there is no explicit negative subpattern, - is prefixed to the |
| * positive form. That is, "0.00" alone is equivalent to "0.00;-0.00". |
| * <P> |
| * The grouping separator is commonly used for thousands, but in some |
| * countries for ten-thousands. The interval is a constant number of |
| * digits between the grouping characters, such as 100,000,000 or 1,0000,0000. |
| * If you supply a pattern with multiple grouping characters, the interval |
| * between the last one and the end of the integer is the one that is |
| * used. So "#,##,###,####" == "######,####" == "##,####,####". |
| */ |
| class U_I18N_API DecimalFormatSymbols : public UObject { |
| public: |
| /** |
| * Constants for specifying a number format symbol. |
| * @stable ICU 2.0 |
| */ |
| enum ENumberFormatSymbol { |
| /** The decimal separator */ |
| kDecimalSeparatorSymbol, |
| /** The grouping separator */ |
| kGroupingSeparatorSymbol, |
| /** The pattern separator */ |
| kPatternSeparatorSymbol, |
| /** The percent sign */ |
| kPercentSymbol, |
| /** Zero*/ |
| kZeroDigitSymbol, |
| /** Character representing a digit in the pattern */ |
| kDigitSymbol, |
| /** The minus sign */ |
| kMinusSignSymbol, |
| /** The plus sign */ |
| kPlusSignSymbol, |
| /** The currency symbol */ |
| kCurrencySymbol, |
| /** The international currency symbol */ |
| kIntlCurrencySymbol, |
| /** The monetary separator */ |
| kMonetarySeparatorSymbol, |
| /** The exponential symbol */ |
| kExponentialSymbol, |
| /** Per mill symbol - replaces kPermillSymbol */ |
| kPerMillSymbol, |
| /** Escape padding character */ |
| kPadEscapeSymbol, |
| /** Infinity symbol */ |
| kInfinitySymbol, |
| /** Nan symbol */ |
| kNaNSymbol, |
| /** Significant digit symbol |
| * @stable ICU 3.0 */ |
| kSignificantDigitSymbol, |
| /** The monetary grouping separator |
| * @stable ICU 3.6 |
| */ |
| kMonetaryGroupingSeparatorSymbol, |
| /** One |
| * @stable ICU 4.6 |
| */ |
| kOneDigitSymbol, |
| /** Two |
| * @stable ICU 4.6 |
| */ |
| kTwoDigitSymbol, |
| /** Three |
| * @stable ICU 4.6 |
| */ |
| kThreeDigitSymbol, |
| /** Four |
| * @stable ICU 4.6 |
| */ |
| kFourDigitSymbol, |
| /** Five |
| * @stable ICU 4.6 |
| */ |
| kFiveDigitSymbol, |
| /** Six |
| * @stable ICU 4.6 |
| */ |
| kSixDigitSymbol, |
| /** Seven |
| * @stable ICU 4.6 |
| */ |
| kSevenDigitSymbol, |
| /** Eight |
| * @stable ICU 4.6 |
| */ |
| kEightDigitSymbol, |
| /** Nine |
| * @stable ICU 4.6 |
| */ |
| kNineDigitSymbol, |
| /** Multiplication sign. |
| * @stable ICU 54 |
| */ |
| kExponentMultiplicationSymbol, |
| /** count symbol constants */ |
| kFormatSymbolCount = kNineDigitSymbol + 2 |
| }; |
| |
| /** |
| * Create a DecimalFormatSymbols object for the given locale. |
| * |
| * @param locale The locale to get symbols for. |
| * @param status Input/output parameter, set to success or |
| * failure code upon return. |
| * @stable ICU 2.0 |
| */ |
| DecimalFormatSymbols(const Locale& locale, UErrorCode& status); |
| |
| /** |
| * Creates a DecimalFormatSymbols instance for the given locale with digits and symbols |
| * corresponding to the given NumberingSystem. |
| * |
| * This constructor behaves equivalently to the normal constructor called with a locale having a |
| * "numbers=xxxx" keyword specifying the numbering system by name. |
| * |
| * In this constructor, the NumberingSystem argument will be used even if the locale has its own |
| * "numbers=xxxx" keyword. |
| * |
| * @param locale The locale to get symbols for. |
| * @param ns The numbering system. |
| * @param status Input/output parameter, set to success or |
| * failure code upon return. |
| * @stable ICU 60 |
| */ |
| DecimalFormatSymbols(const Locale& locale, const NumberingSystem& ns, UErrorCode& status); |
| |
| /** |
| * Create a DecimalFormatSymbols object for the default locale. |
| * This constructor will not fail. If the resource file data is |
| * not available, it will use hard-coded last-resort data and |
| * set status to U_USING_FALLBACK_ERROR. |
| * |
| * @param status Input/output parameter, set to success or |
| * failure code upon return. |
| * @stable ICU 2.0 |
| */ |
| DecimalFormatSymbols(UErrorCode& status); |
| |
| /** |
| * Creates a DecimalFormatSymbols object with last-resort data. |
| * Intended for callers who cache the symbols data and |
| * set all symbols on the resulting object. |
| * |
| * The last-resort symbols are similar to those for the root data, |
| * except that the grouping separators are empty, |
| * the NaN symbol is U+FFFD rather than "NaN", |
| * and the CurrencySpacing patterns are empty. |
| * |
| * @param status Input/output parameter, set to success or |
| * failure code upon return. |
| * @return last-resort symbols |
| * @stable ICU 52 |
| */ |
| static DecimalFormatSymbols* createWithLastResortData(UErrorCode& status); |
| |
| /** |
| * Copy constructor. |
| * @stable ICU 2.0 |
| */ |
| DecimalFormatSymbols(const DecimalFormatSymbols&); |
| |
| /** |
| * Assignment operator. |
| * @stable ICU 2.0 |
| */ |
| DecimalFormatSymbols& operator=(const DecimalFormatSymbols&); |
| |
| /** |
| * Destructor. |
| * @stable ICU 2.0 |
| */ |
| virtual ~DecimalFormatSymbols(); |
| |
| /** |
| * Return true if another object is semantically equal to this one. |
| * |
| * @param other the object to be compared with. |
| * @return true if another object is semantically equal to this one. |
| * @stable ICU 2.0 |
| */ |
| UBool operator==(const DecimalFormatSymbols& other) const; |
| |
| /** |
| * Return true if another object is semantically unequal to this one. |
| * |
| * @param other the object to be compared with. |
| * @return true if another object is semantically unequal to this one. |
| * @stable ICU 2.0 |
| */ |
| UBool operator!=(const DecimalFormatSymbols& other) const { return !operator==(other); } |
| |
| /** |
| * Get one of the format symbols by its enum constant. |
| * Each symbol is stored as a string so that graphemes |
| * (characters with modifier letters) can be used. |
| * |
| * @param symbol Constant to indicate a number format symbol. |
| * @return the format symbols by the param 'symbol' |
| * @stable ICU 2.0 |
| */ |
| inline UnicodeString getSymbol(ENumberFormatSymbol symbol) const; |
| |
| /** |
| * Set one of the format symbols by its enum constant. |
| * Each symbol is stored as a string so that graphemes |
| * (characters with modifier letters) can be used. |
| * |
| * @param symbol Constant to indicate a number format symbol. |
| * @param value value of the format symbol |
| * @param propogateDigits If false, setting the zero digit will not automatically set 1-9. |
| * The default behavior is to automatically set 1-9 if zero is being set and the value |
| * it is being set to corresponds to a known Unicode zero digit. |
| * @stable ICU 2.0 |
| */ |
| void setSymbol(ENumberFormatSymbol symbol, const UnicodeString &value, const UBool propogateDigits); |
| |
| #ifndef U_HIDE_INTERNAL_API |
| /** |
| * Loads symbols for the specified currency into this instance. |
| * |
| * This method is internal. If you think it should be public, file a ticket. |
| * |
| * @internal |
| */ |
| void setCurrency(const UChar* currency, UErrorCode& status); |
| #endif // U_HIDE_INTERNAL_API |
| |
| /** |
| * Returns the locale for which this object was constructed. |
| * @stable ICU 2.6 |
| */ |
| inline Locale getLocale() const; |
| |
| /** |
| * Returns the locale for this object. Two flavors are available: |
| * valid and actual locale. |
| * @stable ICU 2.8 |
| */ |
| Locale getLocale(ULocDataLocaleType type, UErrorCode& status) const; |
| |
| /** |
| * Get pattern string for 'CurrencySpacing' that can be applied to |
| * currency format. |
| * This API gets the CurrencySpacing data from ResourceBundle. The pattern can |
| * be empty if there is no data from current locale and its parent locales. |
| * |
| * @param type : UNUM_CURRENCY_MATCH, UNUM_CURRENCY_SURROUNDING_MATCH or UNUM_CURRENCY_INSERT. |
| * @param beforeCurrency : true if the pattern is for before currency symbol. |
| * false if the pattern is for after currency symbol. |
| * @param status: Input/output parameter, set to success or |
| * failure code upon return. |
| * @return pattern string for currencyMatch, surroundingMatch or spaceInsert. |
| * Return empty string if there is no data for this locale and its parent |
| * locales. |
| * @stable ICU 4.8 |
| */ |
| const UnicodeString& getPatternForCurrencySpacing(UCurrencySpacing type, |
| UBool beforeCurrency, |
| UErrorCode& status) const; |
| /** |
| * Set pattern string for 'CurrencySpacing' that can be applied to |
| * currency format. |
| * |
| * @param type : UNUM_CURRENCY_MATCH, UNUM_CURRENCY_SURROUNDING_MATCH or UNUM_CURRENCY_INSERT. |
| * @param beforeCurrency : true if the pattern is for before currency symbol. |
| * false if the pattern is for after currency symbol. |
| * @param pattern : pattern string to override current setting. |
| * @stable ICU 4.8 |
| */ |
| void setPatternForCurrencySpacing(UCurrencySpacing type, |
| UBool beforeCurrency, |
| const UnicodeString& pattern); |
| |
| /** |
| * ICU "poor man's RTTI", returns a UClassID for the actual class. |
| * |
| * @stable ICU 2.2 |
| */ |
| virtual UClassID getDynamicClassID() const; |
| |
| /** |
| * ICU "poor man's RTTI", returns a UClassID for this class. |
| * |
| * @stable ICU 2.2 |
| */ |
| static UClassID U_EXPORT2 getStaticClassID(); |
| |
| private: |
| DecimalFormatSymbols(); |
| |
| /** |
| * Initializes the symbols from the LocaleElements resource bundle. |
| * Note: The organization of LocaleElements badly needs to be |
| * cleaned up. |
| * |
| * @param locale The locale to get symbols for. |
| * @param success Input/output parameter, set to success or |
| * failure code upon return. |
| * @param useLastResortData determine if use last resort data |
| * @param ns The NumberingSystem to use; otherwise, fall |
| * back to the locale. |
| */ |
| void initialize(const Locale& locale, UErrorCode& success, |
| UBool useLastResortData = false, const NumberingSystem* ns = nullptr); |
| |
| /** |
| * Initialize the symbols with default values. |
| */ |
| void initialize(); |
| |
| public: |
| |
| #ifndef U_HIDE_INTERNAL_API |
| /** |
| * @internal For ICU use only |
| */ |
| inline UBool isCustomCurrencySymbol() const { |
| return fIsCustomCurrencySymbol; |
| } |
| |
| /** |
| * @internal For ICU use only |
| */ |
| inline UBool isCustomIntlCurrencySymbol() const { |
| return fIsCustomIntlCurrencySymbol; |
| } |
| |
| /** |
| * @internal For ICU use only |
| */ |
| inline UChar32 getCodePointZero() const { |
| return fCodePointZero; |
| } |
| #endif /* U_HIDE_INTERNAL_API */ |
| |
| /** |
| * _Internal_ function - more efficient version of getSymbol, |
| * returning a const reference to one of the symbol strings. |
| * The returned reference becomes invalid when the symbol is changed |
| * or when the DecimalFormatSymbols are destroyed. |
| * Note: moved \#ifndef U_HIDE_INTERNAL_API after this, since this is needed for inline in DecimalFormat |
| * |
| * This is not currently stable API, but if you think it should be stable, |
| * post a comment on the following ticket and the ICU team will take a look: |
| * http://bugs.icu-project.org/trac/ticket/13580 |
| * |
| * @param symbol Constant to indicate a number format symbol. |
| * @return the format symbol by the param 'symbol' |
| * @internal |
| */ |
| inline const UnicodeString& getConstSymbol(ENumberFormatSymbol symbol) const; |
| |
| #ifndef U_HIDE_INTERNAL_API |
| /** |
| * Returns the const UnicodeString reference, like getConstSymbol, |
| * corresponding to the digit with the given value. This is equivalent |
| * to accessing the symbol from getConstSymbol with the corresponding |
| * key, such as kZeroDigitSymbol or kOneDigitSymbol. |
| * |
| * This is not currently stable API, but if you think it should be stable, |
| * post a comment on the following ticket and the ICU team will take a look: |
| * http://bugs.icu-project.org/trac/ticket/13580 |
| * |
| * @param digit The digit, an integer between 0 and 9 inclusive. |
| * If outside the range 0 to 9, the zero digit is returned. |
| * @return the format symbol for the given digit. |
| * @internal This API is currently for ICU use only. |
| */ |
| inline const UnicodeString& getConstDigitSymbol(int32_t digit) const; |
| |
| /** |
| * Returns that pattern stored in currecy info. Internal API for use by NumberFormat API. |
| * @internal |
| */ |
| inline const char16_t* getCurrencyPattern(void) const; |
| #endif /* U_HIDE_INTERNAL_API */ |
| |
| private: |
| /** |
| * Private symbol strings. |
| * They are either loaded from a resource bundle or otherwise owned. |
| * setSymbol() clones the symbol string. |
| * Readonly aliases can only come from a resource bundle, so that we can always |
| * use fastCopyFrom() with them. |
| * |
| * If DecimalFormatSymbols becomes subclassable and the status of fSymbols changes |
| * from private to protected, |
| * or when fSymbols can be set any other way that allows them to be readonly aliases |
| * to non-resource bundle strings, |
| * then regular UnicodeString copies must be used instead of fastCopyFrom(). |
| * |
| */ |
| UnicodeString fSymbols[kFormatSymbolCount]; |
| |
| /** |
| * Non-symbol variable for getConstSymbol(). Always empty. |
| */ |
| UnicodeString fNoSymbol; |
| |
| /** |
| * Dealing with code points is faster than dealing with strings when formatting. Because of |
| * this, we maintain a value containing the zero code point that is used whenever digitStrings |
| * represents a sequence of ten code points in order. |
| * |
| * <p>If the value stored here is positive, it means that the code point stored in this value |
| * corresponds to the digitStrings array, and codePointZero can be used instead of the |
| * digitStrings array for the purposes of efficient formatting; if -1, then digitStrings does |
| * *not* contain a sequence of code points, and it must be used directly. |
| * |
| * <p>It is assumed that codePointZero always shadows the value in digitStrings. codePointZero |
| * should never be set directly; rather, it should be updated only when digitStrings mutates. |
| * That is, the flow of information is digitStrings -> codePointZero, not the other way. |
| */ |
| UChar32 fCodePointZero; |
| |
| Locale locale; |
| |
| char actualLocale[ULOC_FULLNAME_CAPACITY]; |
| char validLocale[ULOC_FULLNAME_CAPACITY]; |
| const char16_t* currPattern; |
| |
| UnicodeString currencySpcBeforeSym[UNUM_CURRENCY_SPACING_COUNT]; |
| UnicodeString currencySpcAfterSym[UNUM_CURRENCY_SPACING_COUNT]; |
| UBool fIsCustomCurrencySymbol; |
| UBool fIsCustomIntlCurrencySymbol; |
| }; |
| |
| // ------------------------------------- |
| |
| inline UnicodeString |
| DecimalFormatSymbols::getSymbol(ENumberFormatSymbol symbol) const { |
| const UnicodeString *strPtr; |
| if(symbol < kFormatSymbolCount) { |
| strPtr = &fSymbols[symbol]; |
| } else { |
| strPtr = &fNoSymbol; |
| } |
| return *strPtr; |
| } |
| |
| // See comments above for this function. Not hidden with #ifdef U_HIDE_INTERNAL_API |
| inline const UnicodeString & |
| DecimalFormatSymbols::getConstSymbol(ENumberFormatSymbol symbol) const { |
| const UnicodeString *strPtr; |
| if(symbol < kFormatSymbolCount) { |
| strPtr = &fSymbols[symbol]; |
| } else { |
| strPtr = &fNoSymbol; |
| } |
| return *strPtr; |
| } |
| |
| #ifndef U_HIDE_INTERNAL_API |
| inline const UnicodeString& DecimalFormatSymbols::getConstDigitSymbol(int32_t digit) const { |
| if (digit < 0 || digit > 9) { |
| digit = 0; |
| } |
| if (digit == 0) { |
| return fSymbols[kZeroDigitSymbol]; |
| } |
| ENumberFormatSymbol key = static_cast<ENumberFormatSymbol>(kOneDigitSymbol + digit - 1); |
| return fSymbols[key]; |
| } |
| #endif /* U_HIDE_INTERNAL_API */ |
| |
| // ------------------------------------- |
| |
| inline void |
| DecimalFormatSymbols::setSymbol(ENumberFormatSymbol symbol, const UnicodeString &value, const UBool propagateDigits = true) { |
| if (symbol == kCurrencySymbol) { |
| fIsCustomCurrencySymbol = true; |
| } |
| else if (symbol == kIntlCurrencySymbol) { |
| fIsCustomIntlCurrencySymbol = true; |
| } |
| if(symbol<kFormatSymbolCount) { |
| fSymbols[symbol]=value; |
| } |
| |
| // If the zero digit is being set to a known zero digit according to Unicode, |
| // then we automatically set the corresponding 1-9 digits |
| // Also record updates to fCodePointZero. Be conservative if in doubt. |
| if (symbol == kZeroDigitSymbol) { |
| UChar32 sym = value.char32At(0); |
| if ( propagateDigits && u_charDigitValue(sym) == 0 && value.countChar32() == 1 ) { |
| fCodePointZero = sym; |
| for ( int8_t i = 1 ; i<= 9 ; i++ ) { |
| sym++; |
| fSymbols[(int)kOneDigitSymbol+i-1] = UnicodeString(sym); |
| } |
| } else { |
| fCodePointZero = -1; |
| } |
| } else if (symbol >= kOneDigitSymbol && symbol <= kNineDigitSymbol) { |
| fCodePointZero = -1; |
| } |
| } |
| |
| // ------------------------------------- |
| |
| inline Locale |
| DecimalFormatSymbols::getLocale() const { |
| return locale; |
| } |
| |
| #ifndef U_HIDE_INTERNAL_API |
| inline const char16_t* |
| DecimalFormatSymbols::getCurrencyPattern() const { |
| return currPattern; |
| } |
| #endif /* U_HIDE_INTERNAL_API */ |
| |
| U_NAMESPACE_END |
| |
| #endif /* #if !UCONFIG_NO_FORMATTING */ |
| |
| #endif /* U_SHOW_CPLUSPLUS_API */ |
| |
| #endif // _DCFMTSYM |
| //eof |
