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// Copyright 2012 Norbert Lindenberg. All rights reserved.
// Copyright 2012 Mozilla Corporation. All rights reserved.
// Copyright 2013 Microsoft Corporation. All rights reserved.
// Copyright (C) 2022 Richard Gibson. All rights reserved.
// This code is governed by the license found in the LICENSE file.
/*---
description: >
String.prototype.localeCompare must return 0 when
comparing Strings that are considered canonically equivalent by
the Unicode Standard.
esid: sec-string.prototype.localecompare
info: |
String.prototype.localeCompare ( _that_ [ , _reserved1_ [ , _reserved2_ ] ] )
This function must treat Strings that are canonically equivalent
according to the Unicode standard as identical and must return `0`
when comparing Strings that are considered canonically equivalent.
---*/
// pairs with characters not in Unicode 3.0 are commented out
var pairs = [
// example from Unicode 5.0, section 3.7, definition D70
["o\u0308", "ö"],
// examples from Unicode 5.0, chapter 3.11
["ä\u0323", "a\u0323\u0308"],
["a\u0308\u0323", "a\u0323\u0308"],
["ạ\u0308", "a\u0323\u0308"],
["ä\u0306", "a\u0308\u0306"],
["ă\u0308", "a\u0306\u0308"],
// example from Unicode 5.0, chapter 3.12
["\u1111\u1171\u11B6", "퓛"],
// examples from UTS 10, Unicode Collation Algorithm
["Å", "Å"],
["Å", "A\u030A"],
["x\u031B\u0323", "x\u0323\u031B"],
["ự", "ụ\u031B"],
["ự", "u\u031B\u0323"],
["ự", "ư\u0323"],
["ự", "u\u0323\u031B"],
// examples from UAX 15, Unicode Normalization Forms
["Ç", "C\u0327"],
["q\u0307\u0323", "q\u0323\u0307"],
["가", "\u1100\u1161"],
["Å", "A\u030A"],
["Ω", "Ω"],
["Å", "A\u030A"],
["ô", "o\u0302"],
["ṩ", "s\u0323\u0307"],
["ḋ\u0323", "d\u0323\u0307"],
["ḋ\u0323", "ḍ\u0307"],
["q\u0307\u0323", "q\u0323\u0307"],
// examples involving supplementary characters from UCD NormalizationTest.txt
// ["\uD834\uDD5E", "\uD834\uDD57\uD834\uDD65"],
// ["\uD87E\uDC2B", "北"]
];
var i;
for (i = 0; i < pairs.length; i++) {
var pair = pairs[i];
if (pair[0].localeCompare(pair[1]) !== 0) {
throw new Test262Error("String.prototype.localeCompare considers " + pair[0] + " (" + toU(pair[0]) +
") ≠ " + pair[1] + " (" + toU(pair[1]) + ").");
}
}
function toU(s) {
var result = "";
var escape = "\\u0000";
var i;
for (i = 0; i < s.length; i++) {
var hex = s.charCodeAt(i).toString(16);
result += escape.substring(0, escape.length - hex.length) + hex;
}
return result;
}
reportCompare(0, 0);
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