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34 lines
1.3 KiB
Plaintext
34 lines
1.3 KiB
Plaintext
/*
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* Copyright 2020 Adobe. All rights reserved.
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* This file is licensed to you under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License. You may obtain a copy
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* of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under
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* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
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* OF ANY KIND, either express or implied. See the License for the specific language
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* governing permissions and limitations under the License.
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*/
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import {useLocale} from './context';
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let cache = new Map<string, Intl.Collator>();
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/**
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* Provides localized string collation for the current locale. Automatically updates when the locale changes,
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* and handles caching of the collator for performance.
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* @param options - Collator options.
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*/
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export function useCollator(options?: Intl.CollatorOptions): Intl.Collator {
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let {locale} = useLocale();
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let cacheKey = locale + (options ? Object.entries(options).sort((a, b) => a[0] < b[0] ? -1 : 1).join() : '');
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if (cache.has(cacheKey)) {
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return cache.get(cacheKey)!;
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}
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let formatter = new Intl.Collator(locale, options);
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cache.set(cacheKey, formatter);
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return formatter;
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}
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