Source code
Revision control
Copy as Markdown
Other Tools
// Copyright 2018 André Bargull; Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-intl.locale
description: >
Verifies canonicalization of specific tags.
info: |
ApplyOptionsToTag( tag, options )
2. If IsStructurallyValidLanguageTag(tag) is false, throw a RangeError exception.
...
13. Return CanonicalizeLanguageTag(tag).
features: [Intl.Locale]
---*/
const validLanguageTags = {
"eN": "en",
"en-gb": "en-GB",
"IT-LATN-iT": "it-Latn-IT",
"th-th-u-nu-thai": "th-TH-u-nu-thai",
"en-x-u-foo": "en-x-u-foo",
"en-a-bar-x-u-foo": "en-a-bar-x-u-foo",
"en-x-u-foo-a-bar": "en-x-u-foo-a-bar",
"en-u-baz-a-bar-x-u-foo": "en-a-bar-u-baz-x-u-foo",
"DE-1996": "de-1996", // unicode_language_subtag sep unicode_variant_subtag
// unicode_language_subtag (sep unicode_variant_subtag)*
"sl-ROZAJ-BISKE-1994": "sl-1994-biske-rozaj",
"zh-latn-pinyin-pinyin2": "zh-Latn-pinyin-pinyin2",
};
for (const [langtag, canonical] of Object.entries(validLanguageTags)) {
assert.sameValue(
new Intl.Locale(canonical).toString(),
canonical,
`new Intl.Locale("${canonical}").toString() returns "${canonical}"`
);
assert.sameValue(
new Intl.Locale(langtag).toString(),
canonical,
`new Intl.Locale("${langtag}").toString() returns "${canonical}"`
);
}
// unicode_language_subtag = alpha{2,3} | alpha{5,8};
const invalidLanguageTags = [
"X-u-foo",
"Flob",
"ZORK",
"Blah-latn",
"QuuX-latn-us",
"SPAM-gb-x-Sausages-BACON-eggs",
];
for (const langtag of invalidLanguageTags) {
assert.throws(RangeError, () => new Intl.Locale(langtag));
}
reportCompare(0, 0);