109 lines
3.8 KiB
C++
109 lines
3.8 KiB
C++
// © 2018 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#ifndef __NUMPARSE_IMPL_H__
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#define __NUMPARSE_IMPL_H__
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#include "numparse_types.h"
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#include "numparse_decimal.h"
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#include "numparse_symbols.h"
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#include "numparse_scientific.h"
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#include "unicode/uniset.h"
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#include "numparse_currency.h"
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#include "numparse_affixes.h"
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#include "number_decimfmtprops.h"
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#include "unicode/localpointer.h"
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#include "numparse_validators.h"
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#include "number_multiplier.h"
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U_NAMESPACE_BEGIN namespace numparse {
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namespace impl {
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// Export an explicit template instantiation of the MaybeStackArray that is used as a data member of NumberParserImpl.
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// When building DLLs for Windows this is required even though no direct access to the MaybeStackArray leaks out of the i18n library.
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// (See numparse_compositions.h, numparse_affixes.h, datefmt.h, and others for similar examples.)
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#if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
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template class U_I18N_API MaybeStackArray<const NumberParseMatcher*, 10>;
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#endif
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// Exported as U_I18N_API for tests
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class U_I18N_API NumberParserImpl : public MutableMatcherCollection {
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public:
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virtual ~NumberParserImpl();
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static NumberParserImpl* createSimpleParser(const Locale& locale, const UnicodeString& patternString,
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parse_flags_t parseFlags, UErrorCode& status);
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static NumberParserImpl* createParserFromProperties(
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const number::impl::DecimalFormatProperties& properties, const DecimalFormatSymbols& symbols,
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bool parseCurrency, UErrorCode& status);
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/**
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* Does NOT take ownership of the matcher. The matcher MUST remain valid for the lifespan of the
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* NumberParserImpl.
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* @param matcher The matcher to reference.
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*/
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void addMatcher(NumberParseMatcher& matcher) override;
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void freeze();
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parse_flags_t getParseFlags() const;
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void parse(const UnicodeString& input, bool greedy, ParsedNumber& result, UErrorCode& status) const;
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void parse(const UnicodeString& input, int32_t start, bool greedy, ParsedNumber& result,
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UErrorCode& status) const;
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UnicodeString toString() const;
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private:
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parse_flags_t fParseFlags;
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int32_t fNumMatchers = 0;
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// NOTE: The stack capacity for fMatchers and fLeads should be the same
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MaybeStackArray<const NumberParseMatcher*, 10> fMatchers;
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bool fFrozen = false;
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// WARNING: All of these matchers start in an undefined state (default-constructed).
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// You must use an assignment operator on them before using.
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struct {
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IgnorablesMatcher ignorables;
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InfinityMatcher infinity;
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MinusSignMatcher minusSign;
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NanMatcher nan;
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PaddingMatcher padding;
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PercentMatcher percent;
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PermilleMatcher permille;
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PlusSignMatcher plusSign;
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DecimalMatcher decimal;
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ScientificMatcher scientific;
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CombinedCurrencyMatcher currency;
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AffixMatcherWarehouse affixMatcherWarehouse;
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AffixTokenMatcherWarehouse affixTokenMatcherWarehouse;
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} fLocalMatchers;
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struct {
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RequireAffixValidator affix;
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RequireCurrencyValidator currency;
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RequireDecimalSeparatorValidator decimalSeparator;
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RequireExponentValidator exponent;
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RequireNumberValidator number;
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MultiplierParseHandler multiplier;
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} fLocalValidators;
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explicit NumberParserImpl(parse_flags_t parseFlags);
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void parseGreedyRecursive(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const;
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void parseLongestRecursive(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const;
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};
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} // namespace impl
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} // namespace numparse
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U_NAMESPACE_END
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#endif //__NUMPARSE_IMPL_H__
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#endif /* #if !UCONFIG_NO_FORMATTING */
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