scuffed-code/icu4c/source/i18n/numrange_impl.h
Shane Carr 35b182767f ICU-20409 Additional refactoring of FormattedValue implementations.
- Migrates Number[Range] formatter to helper macros.
- Adds additional macros.
- Syncs docstrings between subclasses.
2019-02-15 16:50:22 -08:00

114 lines
3.4 KiB
C++

// © 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 __SOURCE_NUMRANGE_TYPES_H__
#define __SOURCE_NUMRANGE_TYPES_H__
#include "unicode/numberformatter.h"
#include "unicode/numberrangeformatter.h"
#include "unicode/simpleformatter.h"
#include "number_types.h"
#include "number_decimalquantity.h"
#include "number_formatimpl.h"
#include "number_stringbuilder.h"
#include "formattedval_impl.h"
U_NAMESPACE_BEGIN namespace number {
namespace impl {
/**
* Class similar to UFormattedNumberData.
*
* Has incomplete magic number logic that will need to be finished
* if this is to be exposed as C API in the future.
*
* Possible magic number: 0x46445200
* Reads in ASCII as "FDR" (FormatteDnumberRange with room at the end)
*/
class UFormattedNumberRangeData : public FormattedValueNumberStringBuilderImpl {
public:
UFormattedNumberRangeData() : FormattedValueNumberStringBuilderImpl(0) {}
virtual ~UFormattedNumberRangeData();
DecimalQuantity quantity1;
DecimalQuantity quantity2;
UNumberRangeIdentityResult identityResult = UNUM_IDENTITY_RESULT_COUNT;
};
class StandardPluralRanges : public UMemory {
public:
void initialize(const Locale& locale, UErrorCode& status);
StandardPlural::Form resolve(StandardPlural::Form first, StandardPlural::Form second) const;
/** Used for data loading. */
void addPluralRange(
StandardPlural::Form first,
StandardPlural::Form second,
StandardPlural::Form result);
/** Used for data loading. */
void setCapacity(int32_t length);
private:
struct StandardPluralRangeTriple {
StandardPlural::Form first;
StandardPlural::Form second;
StandardPlural::Form result;
};
// TODO: An array is simple here, but it results in linear lookup time.
// Certain locales have 20-30 entries in this list.
// Consider changing to a smarter data structure.
typedef MaybeStackArray<StandardPluralRangeTriple, 3> PluralRangeTriples;
PluralRangeTriples fTriples;
int32_t fTriplesLen = 0;
};
class NumberRangeFormatterImpl : public UMemory {
public:
NumberRangeFormatterImpl(const RangeMacroProps& macros, UErrorCode& status);
void format(UFormattedNumberRangeData& data, bool equalBeforeRounding, UErrorCode& status) const;
private:
NumberFormatterImpl formatterImpl1;
NumberFormatterImpl formatterImpl2;
bool fSameFormatters;
UNumberRangeCollapse fCollapse;
UNumberRangeIdentityFallback fIdentityFallback;
SimpleFormatter fRangeFormatter;
SimpleModifier fApproximatelyModifier;
StandardPluralRanges fPluralRanges;
void formatSingleValue(UFormattedNumberRangeData& data,
MicroProps& micros1, MicroProps& micros2,
UErrorCode& status) const;
void formatApproximately(UFormattedNumberRangeData& data,
MicroProps& micros1, MicroProps& micros2,
UErrorCode& status) const;
void formatRange(UFormattedNumberRangeData& data,
MicroProps& micros1, MicroProps& micros2,
UErrorCode& status) const;
const Modifier& resolveModifierPlurals(const Modifier& first, const Modifier& second) const;
};
} // namespace impl
} // namespace number
U_NAMESPACE_END
#endif //__SOURCE_NUMRANGE_TYPES_H__
#endif /* #if !UCONFIG_NO_FORMATTING */