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 #include "string_segment.h" 22 23 U_NAMESPACE_BEGIN 24 25 // Export an explicit template instantiation of the MaybeStackArray that is used as a data member of NumberParserImpl. 26 // When building DLLs for Windows this is required even though no direct access to the MaybeStackArray leaks out of the i18n library. 27 // (See numparse_compositions.h, numparse_affixes.h, datefmt.h, and others for similar examples.) 28 #if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN 29 template class U_I18N_API MaybeStackArray<const numparse::impl::NumberParseMatcher*, 10>; 30 #endif 31 32 namespace numparse { 33 namespace impl { 34 35 // Exported as U_I18N_API for tests 36 class U_I18N_API NumberParserImpl : public MutableMatcherCollection, public UMemory { 37 public: 38 virtual ~NumberParserImpl(); 39 40 static NumberParserImpl* createSimpleParser(const Locale& locale, const UnicodeString& patternString, 41 parse_flags_t parseFlags, UErrorCode& status); 42 43 static NumberParserImpl* createParserFromProperties( 44 const number::impl::DecimalFormatProperties& properties, const DecimalFormatSymbols& symbols, 45 bool parseCurrency, UErrorCode& status); 46 47 /** 48 * Does NOT take ownership of the matcher. The matcher MUST remain valid for the lifespan of the 49 * NumberParserImpl. 50 * @param matcher The matcher to reference. 51 */ 52 void addMatcher(NumberParseMatcher& matcher) override; 53 54 void freeze(); 55 56 parse_flags_t getParseFlags() const; 57 58 void parse(const UnicodeString& input, bool greedy, ParsedNumber& result, UErrorCode& status) const; 59 60 void parse(const UnicodeString& input, int32_t start, bool greedy, ParsedNumber& result, 61 UErrorCode& status) const; 62 63 UnicodeString toString() const; 64 65 private: 66 parse_flags_t fParseFlags; 67 int32_t fNumMatchers = 0; 68 // NOTE: The stack capacity for fMatchers and fLeads should be the same 69 MaybeStackArray<const NumberParseMatcher*, 10> fMatchers; 70 bool fFrozen = false; 71 72 // WARNING: All of these matchers start in an undefined state (default-constructed). 73 // You must use an assignment operator on them before using. 74 struct { 75 IgnorablesMatcher ignorables; 76 InfinityMatcher infinity; 77 MinusSignMatcher minusSign; 78 NanMatcher nan; 79 PaddingMatcher padding; 80 PercentMatcher percent; 81 PermilleMatcher permille; 82 PlusSignMatcher plusSign; 83 DecimalMatcher decimal; 84 ScientificMatcher scientific; 85 CombinedCurrencyMatcher currency; 86 AffixMatcherWarehouse affixMatcherWarehouse; 87 AffixTokenMatcherWarehouse affixTokenMatcherWarehouse; 88 } fLocalMatchers; 89 struct { 90 RequireAffixValidator affix; 91 RequireCurrencyValidator currency; 92 RequireDecimalSeparatorValidator decimalSeparator; 93 RequireNumberValidator number; 94 MultiplierParseHandler multiplier; 95 } fLocalValidators; 96 97 explicit NumberParserImpl(parse_flags_t parseFlags); 98 99 void parseGreedy(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const; 100 101 void parseLongestRecursive( 102 StringSegment& segment, ParsedNumber& result, int32_t recursionLevels, UErrorCode& status) const; 103 }; 104 105 106 } // namespace impl 107 } // namespace numparse 108 U_NAMESPACE_END 109 110 #endif //__NUMPARSE_IMPL_H__ 111 #endif /* #if !UCONFIG_NO_FORMATTING */ 112