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e74e8381d5
This is a normative change in the Intl.NumberFormat V3 spec. See:
08f599b
Note that this didn't seem to actually affect our implementation. The
Unicode spec states:
https://www.unicode.org/reports/tr35/tr35-53/tr35-numbers.html#Plural_Ranges
"If there is no value for a <start,end> pair, the default result is end"
Therefore, our implementation did not have the behavior noted by the
issue this normative change addressed:
const pr = new Intl.PluralRules("en-US");
pr.selectRange(1, 1); // Is "other", should be "one"
Our implementation already returned "one" here because there is no such
<start=one, end=one> value in the CLDR for en-US. Thus, we already
returned the end value of "one".
46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
/*
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* Copyright (c) 2022-2023, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/StringView.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Intl/NumberFormat.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibLocale/PluralRules.h>
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namespace JS::Intl {
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class PluralRules final : public NumberFormatBase {
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JS_OBJECT(PluralRules, NumberFormatBase);
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public:
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virtual ~PluralRules() override = default;
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::Locale::PluralForm type() const { return m_type; }
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StringView type_string() const { return ::Locale::plural_form_to_string(m_type); }
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void set_type(StringView type) { m_type = ::Locale::plural_form_from_string(type); }
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private:
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explicit PluralRules(Object& prototype);
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::Locale::PluralForm m_type { ::Locale::PluralForm::Cardinal }; // [[Type]]
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};
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struct ResolvedPlurality {
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::Locale::PluralCategory plural_category; // [[PluralCategory]]
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String formatted_string; // [[FormattedString]]
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};
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::Locale::PluralOperands get_operands(StringView string);
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::Locale::PluralCategory plural_rule_select(StringView locale, ::Locale::PluralForm type, Value number, ::Locale::PluralOperands operands);
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ThrowCompletionOr<ResolvedPlurality> resolve_plural(VM&, PluralRules const&, Value number);
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ThrowCompletionOr<ResolvedPlurality> resolve_plural(VM&, NumberFormatBase const& number_format, ::Locale::PluralForm type, Value number);
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::Locale::PluralCategory plural_rule_select_range(StringView locale, ::Locale::PluralForm, ::Locale::PluralCategory start, ::Locale::PluralCategory end);
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ThrowCompletionOr<::Locale::PluralCategory> resolve_plural_range(VM&, PluralRules const&, Value start, Value end);
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}
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