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68 lines
1.9 KiB
68 lines
1.9 KiB
4 months ago
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// © 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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#ifndef __PLURALRANGES_H__
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#define __PLURALRANGES_H__
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/uobject.h"
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#include "unicode/locid.h"
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#include "unicode/plurrule.h"
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#include "standardplural.h"
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#include "cmemory.h"
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U_NAMESPACE_BEGIN
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// Forward declarations
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namespace number {
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namespace impl {
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class UFormattedNumberRangeData;
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}
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}
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class StandardPluralRanges : public UMemory {
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public:
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/** Create a new StandardPluralRanges for the given locale */
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static StandardPluralRanges forLocale(const Locale& locale, UErrorCode& status);
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/** Explicit copy constructor */
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StandardPluralRanges copy(UErrorCode& status) const;
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/** Create an object (called on an rvalue) */
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LocalPointer<StandardPluralRanges> toPointer(UErrorCode& status) && noexcept;
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/** Select rule based on the first and second forms */
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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, UErrorCode& status);
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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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U_NAMESPACE_END
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#endif /* #if !UCONFIG_NO_FORMATTING */
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#endif //__PLURALRANGES_H__
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