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// © 2018 and later: Unicode, Inc. and others. 
// License & terms of use: http://www.unicode.org/copyright.html 
 
#include "unicode/utypes.h" 
 
#if !UCONFIG_NO_FORMATTING 
#ifndef __NUMPARSE_DECIMAL_H__ 
#define __NUMPARSE_DECIMAL_H__ 
 
#include "unicode/uniset.h" 
#include "numparse_types.h" 
 
U_NAMESPACE_BEGIN namespace numparse { 
namespace impl { 
 
using ::icu::number::impl::Grouper; 
 
class DecimalMatcher : public NumberParseMatcher, public UMemory { 
  public: 
    DecimalMatcher() = default;  // WARNING: Leaves the object in an unusable state 
 
    DecimalMatcher(const DecimalFormatSymbols& symbols, const Grouper& grouper, 
                   parse_flags_t parseFlags); 
 
    bool match(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const override; 
 
    bool 
    match(StringSegment& segment, ParsedNumber& result, int8_t exponentSign, UErrorCode& status) const; 
 
    bool smokeTest(const StringSegment& segment) const override; 
 
    UnicodeString toString() const override; 
 
  private: 
    /** If true, only accept strings whose grouping sizes match the locale */ 
    bool requireGroupingMatch; 
 
    /** If true, do not accept grouping separators at all */ 
    bool groupingDisabled; 
 
    // Fraction grouping parsing is disabled for now but could be enabled later. 
    // See http://bugs.icu-project.org/trac/ticket/10794 
    // bool fractionGrouping; 
 
    /** If true, do not accept numbers in the fraction */ 
    bool integerOnly; 
 
    int16_t grouping1; 
    int16_t grouping2; 
 
    UnicodeString groupingSeparator; 
    UnicodeString decimalSeparator; 
 
    // Assumption: these sets all consist of single code points. If this assumption needs to be broken, 
    // fix getLeadCodePoints() as well as matching logic. Be careful of the performance impact. 
    const UnicodeSet* groupingUniSet; 
    const UnicodeSet* decimalUniSet; 
    const UnicodeSet* separatorSet; 
    const UnicodeSet* leadSet; 
 
    // Make this class the owner of a few objects that could be allocated. 
    // The first three LocalPointers are used for assigning ownership only. 
    LocalPointer<const UnicodeSet> fLocalDecimalUniSet; 
    LocalPointer<const UnicodeSet> fLocalSeparatorSet; 
    LocalArray<const UnicodeString> fLocalDigitStrings; 
 
    bool validateGroup(int32_t sepType, int32_t count, bool isPrimary) const; 
}; 
 
 
} // namespace impl 
} // namespace numparse 
U_NAMESPACE_END 
 
#endif //__NUMPARSE_DECIMAL_H__ 
#endif /* #if !UCONFIG_NO_FORMATTING */