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_IMPL_H__ 8 #define __NUMPARSE_IMPL_H__ 9 10 #include "numparse_types.h" 11 #include "numparse_decimal.h" 12 #include "numparse_symbols.h" 13 #include "numparse_scientific.h" 14 #include "unicode/uniset.h" 15 #include "numparse_currency.h" 16 #include "numparse_affixes.h" 17 #include "number_decimfmtprops.h" 18 #include "unicode/localpointer.h" 19 #include "numparse_validators.h" 20 #include "number_multiplier.h" 21 22 U_NAMESPACE_BEGIN 23 24 // Export an explicit template instantiation of the MaybeStackArray that is used as a data member of NumberParserImpl. 25 // When building DLLs for Windows this is required even though no direct access to the MaybeStackArray leaks out of the i18n library. 26 // (See numparse_compositions.h, numparse_affixes.h, datefmt.h, and others for similar examples.) 27 #if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN 28 template class U_I18N_API MaybeStackArray<const numparse::impl::NumberParseMatcher*, 10>; 29 #endif 30 31 namespace numparse { 32 namespace impl { 33 34 // Exported as U_I18N_API for tests 35 class U_I18N_API NumberParserImpl : public MutableMatcherCollection, public UMemory { 36 public: 37 virtual ~NumberParserImpl(); 38 39 static NumberParserImpl* createSimpleParser(const Locale& locale, const UnicodeString& patternString, 40 parse_flags_t parseFlags, UErrorCode& status); 41 42 static NumberParserImpl* createParserFromProperties( 43 const number::impl::DecimalFormatProperties& properties, const DecimalFormatSymbols& symbols, 44 bool parseCurrency, UErrorCode& status); 45 46 /** 47 * Does NOT take ownership of the matcher. The matcher MUST remain valid for the lifespan of the 48 * NumberParserImpl. 49 * @param matcher The matcher to reference. 50 */ 51 void addMatcher(NumberParseMatcher& matcher) override; 52 53 void freeze(); 54 55 parse_flags_t getParseFlags() const; 56 57 void parse(const UnicodeString& input, bool greedy, ParsedNumber& result, UErrorCode& status) const; 58 59 void parse(const UnicodeString& input, int32_t start, bool greedy, ParsedNumber& result, 60 UErrorCode& status) const; 61 62 UnicodeString toString() const; 63 64 private: 65 parse_flags_t fParseFlags; 66 int32_t fNumMatchers = 0; 67 // NOTE: The stack capacity for fMatchers and fLeads should be the same 68 MaybeStackArray<const NumberParseMatcher*, 10> fMatchers; 69 bool fFrozen = false; 70 71 // WARNING: All of these matchers start in an undefined state (default-constructed). 72 // You must use an assignment operator on them before using. 73 struct { 74 IgnorablesMatcher ignorables; 75 InfinityMatcher infinity; 76 MinusSignMatcher minusSign; 77 NanMatcher nan; 78 PaddingMatcher padding; 79 PercentMatcher percent; 80 PermilleMatcher permille; 81 PlusSignMatcher plusSign; 82 DecimalMatcher decimal; 83 ScientificMatcher scientific; 84 CombinedCurrencyMatcher currency; 85 AffixMatcherWarehouse affixMatcherWarehouse; 86 AffixTokenMatcherWarehouse affixTokenMatcherWarehouse; 87 } fLocalMatchers; 88 struct { 89 RequireAffixValidator affix; 90 RequireCurrencyValidator currency; 91 RequireDecimalSeparatorValidator decimalSeparator; 92 RequireNumberValidator number; 93 MultiplierParseHandler multiplier; 94 } fLocalValidators; 95 96 explicit NumberParserImpl(parse_flags_t parseFlags); 97 98 void parseGreedyRecursive(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const; 99 100 void parseLongestRecursive(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const; 101 }; 102 103 104 } // namespace impl 105 } // namespace numparse 106 U_NAMESPACE_END 107 108 #endif //__NUMPARSE_IMPL_H__ 109 #endif /* #if !UCONFIG_NO_FORMATTING */ 110