mirror of https://github.com/tc39/test262.git
40 lines
1.3 KiB
JavaScript
40 lines
1.3 KiB
JavaScript
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// Copyright (C) 2017 André Bargull. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-intl.getcanonicallocales
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description: >
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Implementations are allowed to canonicalize extension subtag sequences.
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info: |
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8.2.1 Intl.getCanonicalLocales (locales)
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1. Let ll be ? CanonicalizeLocaleList(locales).
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2. Return CreateArrayFromList(ll).
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9.2.1 CanonicalizeLocaleList (locales)
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...
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7. Repeat, while k < len
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...
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c. If kPresent is true, then
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...
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v. Let canonicalizedTag be CanonicalizeLanguageTag(tag).
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...
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6.2.3 CanonicalizeLanguageTag (locale)
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The specifications for extensions to BCP 47 language tags, such as
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RFC 6067, may include canonicalization rules for the extension subtag
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sequences they define that go beyond the canonicalization rules of
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RFC 5646 section 4.5. Implementations are allowed, but not required,
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to apply these additional rules.
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---*/
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var locale = "it-u-nu-latn-ca-gregory";
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// RFC 6067: The canonical order of keywords is in US-ASCII order by key.
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var sorted = "it-u-ca-gregory-nu-latn";
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var canonicalLocales = Intl.getCanonicalLocales(locale);
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assert.sameValue(canonicalLocales.length, 1);
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var canonicalLocale = canonicalLocales[0];
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assert((canonicalLocale === locale) || (canonicalLocale === sorted));
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