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