169 lines
4.4 KiB
C++
169 lines
4.4 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 && !UPRV_INCOMPLETE_CPP11_SUPPORT
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#ifndef __NUMPARSE_SYMBOLS_H__
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#define __NUMPARSE_SYMBOLS_H__
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#include "numparse_types.h"
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#include "unicode/uniset.h"
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#include "numparse_unisets.h"
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U_NAMESPACE_BEGIN namespace numparse {
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namespace impl {
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/**
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* A base class for many matchers that performs a simple match against a UnicodeString and/or UnicodeSet.
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*
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* @author sffc
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*/
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class SymbolMatcher : public NumberParseMatcher, public UMemory {
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public:
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SymbolMatcher() = default; // WARNING: Leaves the object in an unusable state
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const UnicodeSet* getSet() const;
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bool match(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const override;
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bool smokeTest(const StringSegment& segment) const override;
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UnicodeString toString() const override;
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virtual bool isDisabled(const ParsedNumber& result) const = 0;
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virtual void accept(StringSegment& segment, ParsedNumber& result) const = 0;
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protected:
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UnicodeString fString;
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const UnicodeSet* fUniSet; // a reference from numparse_unisets.h; never owned
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SymbolMatcher(const UnicodeString& symbolString, unisets::Key key);
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};
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class IgnorablesMatcher : public SymbolMatcher {
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public:
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IgnorablesMatcher() = default; // WARNING: Leaves the object in an unusable state
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IgnorablesMatcher(unisets::Key key);
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bool isFlexible() const override;
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UnicodeString toString() const override;
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protected:
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bool isDisabled(const ParsedNumber& result) const override;
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void accept(StringSegment& segment, ParsedNumber& result) const override;
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};
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class InfinityMatcher : public SymbolMatcher {
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public:
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InfinityMatcher() = default; // WARNING: Leaves the object in an unusable state
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InfinityMatcher(const DecimalFormatSymbols& dfs);
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protected:
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bool isDisabled(const ParsedNumber& result) const override;
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void accept(StringSegment& segment, ParsedNumber& result) const override;
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};
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class MinusSignMatcher : public SymbolMatcher {
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public:
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MinusSignMatcher() = default; // WARNING: Leaves the object in an unusable state
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MinusSignMatcher(const DecimalFormatSymbols& dfs, bool allowTrailing);
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protected:
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bool isDisabled(const ParsedNumber& result) const override;
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void accept(StringSegment& segment, ParsedNumber& result) const override;
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private:
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bool fAllowTrailing;
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};
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class NanMatcher : public SymbolMatcher {
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public:
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NanMatcher() = default; // WARNING: Leaves the object in an unusable state
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NanMatcher(const DecimalFormatSymbols& dfs);
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protected:
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bool isDisabled(const ParsedNumber& result) const override;
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void accept(StringSegment& segment, ParsedNumber& result) const override;
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};
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class PaddingMatcher : public SymbolMatcher {
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public:
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PaddingMatcher() = default; // WARNING: Leaves the object in an unusable state
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PaddingMatcher(const UnicodeString& padString);
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bool isFlexible() const override;
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protected:
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bool isDisabled(const ParsedNumber& result) const override;
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void accept(StringSegment& segment, ParsedNumber& result) const override;
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};
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class PercentMatcher : public SymbolMatcher {
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public:
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PercentMatcher() = default; // WARNING: Leaves the object in an unusable state
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PercentMatcher(const DecimalFormatSymbols& dfs);
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protected:
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bool isDisabled(const ParsedNumber& result) const override;
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void accept(StringSegment& segment, ParsedNumber& result) const override;
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};
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class PermilleMatcher : public SymbolMatcher {
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public:
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PermilleMatcher() = default; // WARNING: Leaves the object in an unusable state
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PermilleMatcher(const DecimalFormatSymbols& dfs);
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protected:
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bool isDisabled(const ParsedNumber& result) const override;
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void accept(StringSegment& segment, ParsedNumber& result) const override;
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};
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class PlusSignMatcher : public SymbolMatcher {
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public:
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PlusSignMatcher() = default; // WARNING: Leaves the object in an unusable state
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PlusSignMatcher(const DecimalFormatSymbols& dfs, bool allowTrailing);
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protected:
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bool isDisabled(const ParsedNumber& result) const override;
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void accept(StringSegment& segment, ParsedNumber& result) const override;
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private:
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bool fAllowTrailing;
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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_SYMBOLS_H__
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#endif /* #if !UCONFIG_NO_FORMATTING */
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