1 // © 2017 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 4 #include "unicode/utypes.h" 5 6 #if !UCONFIG_NO_FORMATTING 7 #ifndef __NUMBER_DECIMFMTPROPS_H__ 8 #define __NUMBER_DECIMFMTPROPS_H__ 9 10 #include "unicode/unistr.h" 11 #include <cstdint> 12 #include "unicode/plurrule.h" 13 #include "unicode/currpinf.h" 14 #include "unicode/unum.h" 15 #include "unicode/localpointer.h" 16 #include "number_types.h" 17 18 U_NAMESPACE_BEGIN 19 20 // Export an explicit template instantiation of the LocalPointer that is used as a 21 // data member of CurrencyPluralInfoWrapper. 22 // (When building DLLs for Windows this is required.) 23 #if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN 24 #if defined(_MSC_VER) 25 // Ignore warning 4661 as LocalPointerBase does not use operator== or operator!= 26 #pragma warning(push) 27 #pragma warning(disable: 4661) 28 #endif 29 template class U_I18N_API LocalPointerBase<CurrencyPluralInfo>; 30 template class U_I18N_API LocalPointer<CurrencyPluralInfo>; 31 #if defined(_MSC_VER) 32 #pragma warning(pop) 33 #endif 34 #endif 35 36 namespace number::impl { 37 38 // Exported as U_I18N_API because it is a public member field of exported DecimalFormatProperties 39 // Using this wrapper is rather unfortunate, but is needed on Windows platforms in order to allow 40 // for DLL-exporting a fully specified template instantiation. 41 class U_I18N_API CurrencyPluralInfoWrapper { 42 public: 43 LocalPointer<CurrencyPluralInfo> fPtr; 44 45 CurrencyPluralInfoWrapper() = default; 46 CurrencyPluralInfoWrapper(const CurrencyPluralInfoWrapper & other)47 CurrencyPluralInfoWrapper(const CurrencyPluralInfoWrapper& other) { 48 if (!other.fPtr.isNull()) { 49 fPtr.adoptInstead(new CurrencyPluralInfo(*other.fPtr)); 50 } 51 } 52 53 CurrencyPluralInfoWrapper& operator=(const CurrencyPluralInfoWrapper& other) { 54 if (this != &other && // self-assignment: no-op 55 !other.fPtr.isNull()) { 56 fPtr.adoptInstead(new CurrencyPluralInfo(*other.fPtr)); 57 } 58 return *this; 59 } 60 }; 61 62 /** Controls the set of rules for parsing a string from the old DecimalFormat API. */ 63 enum ParseMode { 64 /** 65 * Lenient mode should be used if you want to accept malformed user input. It will use heuristics 66 * to attempt to parse through typographical errors in the string. 67 */ 68 PARSE_MODE_LENIENT, 69 70 /** 71 * Strict mode should be used if you want to require that the input is well-formed. More 72 * specifically, it differs from lenient mode in the following ways: 73 * 74 * <ul> 75 * <li>Grouping widths must match the grouping settings. For example, "12,3,45" will fail if the 76 * grouping width is 3, as in the pattern "#,##0". 77 * <li>The string must contain a complete prefix and suffix. For example, if the pattern is 78 * "{#};(#)", then "{123}" or "(123)" would match, but "{123", "123}", and "123" would all fail. 79 * (The latter strings would be accepted in lenient mode.) 80 * <li>Whitespace may not appear at arbitrary places in the string. In lenient mode, whitespace 81 * is allowed to occur arbitrarily before and after prefixes and exponent separators. 82 * <li>Leading grouping separators are not allowed, as in ",123". 83 * <li>Minus and plus signs can only appear if specified in the pattern. In lenient mode, a plus 84 * or minus sign can always precede a number. 85 * <li>The set of characters that can be interpreted as a decimal or grouping separator is 86 * smaller. 87 * <li><strong>If currency parsing is enabled,</strong> currencies must only appear where 88 * specified in either the current pattern string or in a valid pattern string for the current 89 * locale. For example, if the pattern is "¤0.00", then "$1.23" would match, but "1.23$" would 90 * fail to match. 91 * </ul> 92 */ 93 PARSE_MODE_STRICT, 94 }; 95 96 // Exported as U_I18N_API because it is needed for the unit test PatternStringTest 97 struct U_I18N_API DecimalFormatProperties : public UMemory { 98 99 public: 100 NullableValue<UNumberCompactStyle> compactStyle; 101 NullableValue<CurrencyUnit> currency; 102 CurrencyPluralInfoWrapper currencyPluralInfo; 103 NullableValue<UCurrencyUsage> currencyUsage; 104 bool decimalPatternMatchRequired; 105 bool decimalSeparatorAlwaysShown; 106 bool exponentSignAlwaysShown; 107 bool currencyAsDecimal; 108 bool formatFailIfMoreThanMaxDigits; // ICU4C-only 109 int32_t formatWidth; 110 int32_t groupingSize; 111 bool groupingUsed; 112 int32_t magnitudeMultiplier; // internal field like multiplierScale but separate to avoid conflict 113 int32_t maximumFractionDigits; 114 int32_t maximumIntegerDigits; 115 int32_t maximumSignificantDigits; 116 int32_t minimumExponentDigits; 117 int32_t minimumFractionDigits; 118 int32_t minimumGroupingDigits; 119 int32_t minimumIntegerDigits; 120 int32_t minimumSignificantDigits; 121 int32_t multiplier; 122 int32_t multiplierScale; // ICU4C-only 123 UnicodeString negativePrefix; 124 UnicodeString negativePrefixPattern; 125 UnicodeString negativeSuffix; 126 UnicodeString negativeSuffixPattern; 127 NullableValue<PadPosition> padPosition; 128 UnicodeString padString; 129 bool parseCaseSensitive; 130 bool parseIntegerOnly; 131 NullableValue<ParseMode> parseMode; 132 bool parseNoExponent; 133 bool parseToBigDecimal; // TODO: Not needed in ICU4C? 134 UNumberFormatAttributeValue parseAllInput; // ICU4C-only 135 //PluralRules pluralRules; 136 UnicodeString positivePrefix; 137 UnicodeString positivePrefixPattern; 138 UnicodeString positiveSuffix; 139 UnicodeString positiveSuffixPattern; 140 double roundingIncrement; 141 NullableValue<RoundingMode> roundingMode; 142 int32_t secondaryGroupingSize; 143 bool signAlwaysShown; 144 145 DecimalFormatProperties(); 146 147 inline bool operator==(const DecimalFormatProperties& other) const { 148 return _equals(other, false); 149 } 150 151 void clear(); 152 153 /** 154 * Checks for equality to the default DecimalFormatProperties, but ignores the prescribed set of 155 * options for fast-path formatting. 156 */ 157 bool equalsDefaultExceptFastFormat() const; 158 159 /** 160 * Returns the default DecimalFormatProperties instance. 161 */ 162 static const DecimalFormatProperties& getDefault(); 163 164 private: 165 bool _equals(const DecimalFormatProperties& other, bool ignoreForFastFormat) const; 166 }; 167 168 } // namespace number::impl 169 170 U_NAMESPACE_END 171 172 173 #endif //__NUMBER_DECIMFMTPROPS_H__ 174 175 #endif /* #if !UCONFIG_NO_FORMATTING */ 176