diff options
Diffstat (limited to 'Build/source/libs/icu/icu-src/source/i18n/unicode/dcfmtsym.h')
-rw-r--r-- | Build/source/libs/icu/icu-src/source/i18n/unicode/dcfmtsym.h | 67 |
1 files changed, 59 insertions, 8 deletions
diff --git a/Build/source/libs/icu/icu-src/source/i18n/unicode/dcfmtsym.h b/Build/source/libs/icu/icu-src/source/i18n/unicode/dcfmtsym.h index 4dc6f950f29..e58befa31bd 100644 --- a/Build/source/libs/icu/icu-src/source/i18n/unicode/dcfmtsym.h +++ b/Build/source/libs/icu/icu-src/source/i18n/unicode/dcfmtsym.h @@ -80,10 +80,6 @@ U_NAMESPACE_BEGIN * 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 "#,##,###,####" == "######,####" == "##,####,####". - * <P> - * This class only handles localized digits where the 10 digits are - * contiguous in Unicode, from 0 to 9. Other digits sets (such as - * superscripts) would need a different subclass. */ class U_I18N_API DecimalFormatSymbols : public UObject { public: @@ -396,6 +392,13 @@ public: inline UBool isCustomIntlCurrencySymbol() const { return fIsCustomIntlCurrencySymbol; } + + /** + * @internal For ICU use only + */ + inline UChar32 getCodePointZero() const { + return fCodePointZero; + } #endif /* U_HIDE_INTERNAL_API */ /** @@ -410,10 +413,23 @@ public: * @return the format symbol by the param 'symbol' * @internal */ - inline const UnicodeString &getConstSymbol(ENumberFormatSymbol symbol) const; + 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. + * + * @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 */ @@ -444,6 +460,22 @@ private: */ 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]; @@ -469,7 +501,7 @@ DecimalFormatSymbols::getSymbol(ENumberFormatSymbol symbol) const { return *strPtr; } -// See comments above for this function. Not hidden with #ifndef U_HIDE_INTERNAL_API +// 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; @@ -481,6 +513,19 @@ DecimalFormatSymbols::getConstSymbol(ENumberFormatSymbol symbol) const { 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 + // ------------------------------------- inline void @@ -497,14 +542,20 @@ DecimalFormatSymbols::setSymbol(ENumberFormatSymbol symbol, const UnicodeString // If the zero digit is being set to a known zero digit according to Unicode, // then we automatically set the corresponding 1-9 digits - if ( propogateDigits && symbol == kZeroDigitSymbol && value.countChar32() == 1 ) { + // Also record updates to fCodePointZero. Be conservative if in doubt. + if (symbol == kZeroDigitSymbol) { UChar32 sym = value.char32At(0); - if ( u_charDigitValue(sym) == 0 ) { + if ( propogateDigits && 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; } } |