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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_SYMBOLS_H__
#define __NUMPARSE_SYMBOLS_H__
#include "numparse_types.h"
#include "unicode/uniset.h"
#include "static_unicode_sets.h"
U_NAMESPACE_BEGIN namespace numparse {
namespace impl {
/**
* A base class for many matchers that performs a simple match against a UnicodeString and/or UnicodeSet.
*
* @author sffc
*/
// Exported as U_I18N_API for tests
class U_I18N_API SymbolMatcher : public NumberParseMatcher, public UMemory {
public:
SymbolMatcher() = default; // WARNING: Leaves the object in an unusable state
const UnicodeSet* getSet() const;
bool match(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const override;
bool smokeTest(const StringSegment& segment) const override;
UnicodeString toString() const override;
virtual bool isDisabled(const ParsedNumber& result) const = 0;
virtual void accept(StringSegment& segment, ParsedNumber& result) const = 0;
protected:
UnicodeString fString;
const UnicodeSet* fUniSet; // a reference from numparse_unisets.h; never owned
SymbolMatcher(const UnicodeString& symbolString, unisets::Key key);
};
// Exported as U_I18N_API for tests
class U_I18N_API IgnorablesMatcher : public SymbolMatcher {
public:
IgnorablesMatcher() = default; // WARNING: Leaves the object in an unusable state
IgnorablesMatcher(parse_flags_t parseFlags);
bool isFlexible() const override;
UnicodeString toString() const override;
protected:
bool isDisabled(const ParsedNumber& result) const override;
void accept(StringSegment& segment, ParsedNumber& result) const override;
};
class InfinityMatcher : public SymbolMatcher {
public:
InfinityMatcher() = default; // WARNING: Leaves the object in an unusable state
InfinityMatcher(const DecimalFormatSymbols& dfs);
protected:
bool isDisabled(const ParsedNumber& result) const override;
void accept(StringSegment& segment, ParsedNumber& result) const override;
};
// Exported as U_I18N_API for tests
class U_I18N_API MinusSignMatcher : public SymbolMatcher {
public:
MinusSignMatcher() = default; // WARNING: Leaves the object in an unusable state
MinusSignMatcher(const DecimalFormatSymbols& dfs, bool allowTrailing);
protected:
bool isDisabled(const ParsedNumber& result) const override;
void accept(StringSegment& segment, ParsedNumber& result) const override;
private:
bool fAllowTrailing;
};
class NanMatcher : public SymbolMatcher {
public:
NanMatcher() = default; // WARNING: Leaves the object in an unusable state
NanMatcher(const DecimalFormatSymbols& dfs);
protected:
bool isDisabled(const ParsedNumber& result) const override;
void accept(StringSegment& segment, ParsedNumber& result) const override;
};
class PaddingMatcher : public SymbolMatcher {
public:
PaddingMatcher() = default; // WARNING: Leaves the object in an unusable state
PaddingMatcher(const UnicodeString& padString);
bool isFlexible() const override;
protected:
bool isDisabled(const ParsedNumber& result) const override;
void accept(StringSegment& segment, ParsedNumber& result) const override;
};
// Exported as U_I18N_API for tests
class U_I18N_API PercentMatcher : public SymbolMatcher {
public:
PercentMatcher() = default; // WARNING: Leaves the object in an unusable state
PercentMatcher(const DecimalFormatSymbols& dfs);
protected:
bool isDisabled(const ParsedNumber& result) const override;
void accept(StringSegment& segment, ParsedNumber& result) const override;
};
// Exported as U_I18N_API for tests
class U_I18N_API PermilleMatcher : public SymbolMatcher {
public:
PermilleMatcher() = default; // WARNING: Leaves the object in an unusable state
PermilleMatcher(const DecimalFormatSymbols& dfs);
protected:
bool isDisabled(const ParsedNumber& result) const override;
void accept(StringSegment& segment, ParsedNumber& result) const override;
};
// Exported as U_I18N_API for tests
class U_I18N_API PlusSignMatcher : public SymbolMatcher {
public:
PlusSignMatcher() = default; // WARNING: Leaves the object in an unusable state
PlusSignMatcher(const DecimalFormatSymbols& dfs, bool allowTrailing);
protected:
bool isDisabled(const ParsedNumber& result) const override;
void accept(StringSegment& segment, ParsedNumber& result) const override;
private:
bool fAllowTrailing;
};
} // namespace impl
} // namespace numparse
U_NAMESPACE_END
#endif //__NUMPARSE_SYMBOLS_H__
#endif /* #if !UCONFIG_NO_FORMATTING */
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