1/*! *****************************************************************************
2Copyright (c) Microsoft Corporation. All rights reserved.
3Licensed under the Apache License, Version 2.0 (the "License"); you may not use
4this file except in compliance with the License. You may obtain a copy of the
5License at http://www.apache.org/licenses/LICENSE-2.0
6
7THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
8KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
9WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
10MERCHANTABLITY OR NON-INFRINGEMENT.
11
12See the Apache Version 2.0 License for specific language governing permissions
13and limitations under the License.
14***************************************************************************** */
15
16
17
18/// <reference no-default-lib="true"/>
19
20
21declare namespace Intl {
22
23    // http://cldr.unicode.org/index/cldr-spec/plural-rules#TOC-Determining-Plural-Categories
24    type LDMLPluralRule = "zero" | "one" | "two" | "few" | "many" | "other";
25    type PluralRuleType = "cardinal" | "ordinal";
26
27    interface PluralRulesOptions {
28        localeMatcher?: "lookup" | "best fit";
29        type?: PluralRuleType;
30        minimumIntegerDigits?: number;
31        minimumFractionDigits?: number;
32        maximumFractionDigits?: number;
33        minimumSignificantDigits?: number;
34        maximumSignificantDigits?: number;
35    }
36
37    interface ResolvedPluralRulesOptions {
38        locale: string;
39        pluralCategories: LDMLPluralRule[];
40        type: PluralRuleType;
41        minimumIntegerDigits: number;
42        minimumFractionDigits: number;
43        maximumFractionDigits: number;
44        minimumSignificantDigits?: number;
45        maximumSignificantDigits?: number;
46    }
47
48    interface PluralRules {
49        resolvedOptions(): ResolvedPluralRulesOptions;
50        select(n: number): LDMLPluralRule;
51    }
52
53    const PluralRules: {
54        new (locales?: string | string[], options?: PluralRulesOptions): PluralRules;
55        (locales?: string | string[], options?: PluralRulesOptions): PluralRules;
56        supportedLocalesOf(
57            locales: string | string[],
58            options?: PluralRulesOptions,
59        ): string[];
60    };
61}
62