1 // © 2018 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 __NUMPARSE_SYMBOLS_H__ 8 #define __NUMPARSE_SYMBOLS_H__ 9 10 #include "numparse_types.h" 11 #include "unicode/uniset.h" 12 #include "static_unicode_sets.h" 13 14 U_NAMESPACE_BEGIN namespace numparse { 15 namespace impl { 16 17 18 /** 19 * A base class for many matchers that performs a simple match against a UnicodeString and/or UnicodeSet. 20 * 21 * @author sffc 22 */ 23 // Exported as U_I18N_API for tests 24 class U_I18N_API SymbolMatcher : public NumberParseMatcher, public UMemory { 25 public: 26 SymbolMatcher() = default; // WARNING: Leaves the object in an unusable state 27 28 const UnicodeSet* getSet() const; 29 30 bool match(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const override; 31 32 bool smokeTest(const StringSegment& segment) const override; 33 34 UnicodeString toString() const override; 35 36 virtual bool isDisabled(const ParsedNumber& result) const = 0; 37 38 virtual void accept(StringSegment& segment, ParsedNumber& result) const = 0; 39 40 protected: 41 UnicodeString fString; 42 const UnicodeSet* fUniSet; // a reference from numparse_unisets.h; never owned 43 44 SymbolMatcher(const UnicodeString& symbolString, unisets::Key key); 45 }; 46 47 48 // Exported as U_I18N_API for tests 49 class U_I18N_API IgnorablesMatcher : public SymbolMatcher { 50 public: 51 IgnorablesMatcher() = default; // WARNING: Leaves the object in an unusable state 52 53 IgnorablesMatcher(unisets::Key key); 54 55 bool isFlexible() const override; 56 57 UnicodeString toString() const override; 58 59 protected: 60 bool isDisabled(const ParsedNumber& result) const override; 61 62 void accept(StringSegment& segment, ParsedNumber& result) const override; 63 }; 64 65 66 class InfinityMatcher : public SymbolMatcher { 67 public: 68 InfinityMatcher() = default; // WARNING: Leaves the object in an unusable state 69 70 InfinityMatcher(const DecimalFormatSymbols& dfs); 71 72 protected: 73 bool isDisabled(const ParsedNumber& result) const override; 74 75 void accept(StringSegment& segment, ParsedNumber& result) const override; 76 }; 77 78 79 // Exported as U_I18N_API for tests 80 class U_I18N_API MinusSignMatcher : public SymbolMatcher { 81 public: 82 MinusSignMatcher() = default; // WARNING: Leaves the object in an unusable state 83 84 MinusSignMatcher(const DecimalFormatSymbols& dfs, bool allowTrailing); 85 86 protected: 87 bool isDisabled(const ParsedNumber& result) const override; 88 89 void accept(StringSegment& segment, ParsedNumber& result) const override; 90 91 private: 92 bool fAllowTrailing; 93 }; 94 95 96 class NanMatcher : public SymbolMatcher { 97 public: 98 NanMatcher() = default; // WARNING: Leaves the object in an unusable state 99 100 NanMatcher(const DecimalFormatSymbols& dfs); 101 102 protected: 103 bool isDisabled(const ParsedNumber& result) const override; 104 105 void accept(StringSegment& segment, ParsedNumber& result) const override; 106 }; 107 108 109 class PaddingMatcher : public SymbolMatcher { 110 public: 111 PaddingMatcher() = default; // WARNING: Leaves the object in an unusable state 112 113 PaddingMatcher(const UnicodeString& padString); 114 115 bool isFlexible() const override; 116 117 protected: 118 bool isDisabled(const ParsedNumber& result) const override; 119 120 void accept(StringSegment& segment, ParsedNumber& result) const override; 121 }; 122 123 124 // Exported as U_I18N_API for tests 125 class U_I18N_API PercentMatcher : public SymbolMatcher { 126 public: 127 PercentMatcher() = default; // WARNING: Leaves the object in an unusable state 128 129 PercentMatcher(const DecimalFormatSymbols& dfs); 130 131 protected: 132 bool isDisabled(const ParsedNumber& result) const override; 133 134 void accept(StringSegment& segment, ParsedNumber& result) const override; 135 }; 136 137 // Exported as U_I18N_API for tests 138 class U_I18N_API PermilleMatcher : public SymbolMatcher { 139 public: 140 PermilleMatcher() = default; // WARNING: Leaves the object in an unusable state 141 142 PermilleMatcher(const DecimalFormatSymbols& dfs); 143 144 protected: 145 bool isDisabled(const ParsedNumber& result) const override; 146 147 void accept(StringSegment& segment, ParsedNumber& result) const override; 148 }; 149 150 151 // Exported as U_I18N_API for tests 152 class U_I18N_API PlusSignMatcher : public SymbolMatcher { 153 public: 154 PlusSignMatcher() = default; // WARNING: Leaves the object in an unusable state 155 156 PlusSignMatcher(const DecimalFormatSymbols& dfs, bool allowTrailing); 157 158 protected: 159 bool isDisabled(const ParsedNumber& result) const override; 160 161 void accept(StringSegment& segment, ParsedNumber& result) const override; 162 163 private: 164 bool fAllowTrailing; 165 }; 166 167 168 } // namespace impl 169 } // namespace numparse 170 U_NAMESPACE_END 171 172 #endif //__NUMPARSE_SYMBOLS_H__ 173 #endif /* #if !UCONFIG_NO_FORMATTING */ 174