115 lines
3.4 KiB
C++
115 lines
3.4 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 __SOURCE_NUMRANGE_TYPES_H__
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#define __SOURCE_NUMRANGE_TYPES_H__
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#include "unicode/numberformatter.h"
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#include "unicode/numberrangeformatter.h"
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#include "unicode/simpleformatter.h"
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#include "number_types.h"
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#include "number_decimalquantity.h"
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#include "number_formatimpl.h"
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#include "number_stringbuilder.h"
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U_NAMESPACE_BEGIN namespace number {
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namespace impl {
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/**
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* Class similar to UFormattedNumberData.
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*
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* Has incomplete magic number logic that will need to be finished
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* if this is to be exposed as C API in the future.
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*/
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struct UFormattedNumberRangeData : public UMemory {
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// The magic number to identify incoming objects.
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// Reads in ASCII as "FDR" (FormatteDnumberRange with room at the end)
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static constexpr int32_t kMagic = 0x46445200;
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// Data members:
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int32_t fMagic = kMagic;
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DecimalQuantity quantity1;
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DecimalQuantity quantity2;
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NumberStringBuilder string;
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UNumberRangeIdentityResult identityResult = UNUM_IDENTITY_RESULT_COUNT;
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// No C conversion methods (no C API yet)
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};
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class StandardPluralRanges : public UMemory {
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public:
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void initialize(const Locale& locale, UErrorCode& status);
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StandardPlural::Form resolve(StandardPlural::Form first, StandardPlural::Form second) const;
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/** Used for data loading. */
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void addPluralRange(
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StandardPlural::Form first,
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StandardPlural::Form second,
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StandardPlural::Form result);
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/** Used for data loading. */
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void setCapacity(int32_t length);
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private:
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struct StandardPluralRangeTriple {
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StandardPlural::Form first;
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StandardPlural::Form second;
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StandardPlural::Form result;
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};
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// TODO: An array is simple here, but it results in linear lookup time.
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// Certain locales have 20-30 entries in this list.
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// Consider changing to a smarter data structure.
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typedef MaybeStackArray<StandardPluralRangeTriple, 3> PluralRangeTriples;
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PluralRangeTriples fTriples;
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int32_t fTriplesLen = 0;
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};
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class NumberRangeFormatterImpl : public UMemory {
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public:
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NumberRangeFormatterImpl(const RangeMacroProps& macros, UErrorCode& status);
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void format(UFormattedNumberRangeData& data, bool equalBeforeRounding, UErrorCode& status) const;
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private:
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NumberFormatterImpl formatterImpl1;
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NumberFormatterImpl formatterImpl2;
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bool fSameFormatters;
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UNumberRangeCollapse fCollapse;
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UNumberRangeIdentityFallback fIdentityFallback;
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SimpleFormatter fRangeFormatter;
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SimpleModifier fApproximatelyModifier;
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StandardPluralRanges fPluralRanges;
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void formatSingleValue(UFormattedNumberRangeData& data,
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MicroProps& micros1, MicroProps& micros2,
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UErrorCode& status) const;
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void formatApproximately(UFormattedNumberRangeData& data,
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MicroProps& micros1, MicroProps& micros2,
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UErrorCode& status) const;
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void formatRange(UFormattedNumberRangeData& data,
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MicroProps& micros1, MicroProps& micros2,
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UErrorCode& status) const;
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const Modifier& resolveModifierPlurals(const Modifier& first, const Modifier& second) const;
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};
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} // namespace impl
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} // namespace number
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U_NAMESPACE_END
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#endif //__SOURCE_NUMRANGE_TYPES_H__
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#endif /* #if !UCONFIG_NO_FORMATTING */
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