The test is at http://norbertlindenberg.com/ecmascript/ESTest.html (and .js).
The strings I used are: ["o\u0308", "ö"], ["ä\u0323", "a\u0323\u0308"], // requires reordering ["a\u0308\u0323", "a\u0323\u0308"], // requires reordering ["ạ\u0308", "a\u0323\u0308"], ["ä\u0306", "a\u0308\u0306"], ["ă\u0308", "a\u0306\u0308"], ["\u1111\u1171\u11b6", "퓛"], // jamo/hangul ["Å", "Å"] Results: Safari on Mac, iOS: Fail for comparisons that require reordering nonspacing marks within strings; pass for others. Firefox, Opera, Explorer on Windows: Fail for jamo/hangul comparison; pass for others. Firefox, Node on Mac; Chrome on Mac, Windows: Fail for all. Opera on Mac: Passes for all. Norbert On Jun 19, 2012, at 7:30 , Rick Waldron wrote: > > > On Tue, Jun 19, 2012 at 12:36 AM, Norbert Lindenberg > <ecmascr...@norbertlindenberg.com> wrote: > The ECMAScript Internationalization API Specification currently has > normalization as an optional feature in collation. However, it requires that > the compare function "return 0 when comparing Strings that are considered > canonically equivalent by the Unicode standard". Canonical equivalence, I > thought, is usually implemented through normalization. Does it make sense to > keep normalization as a separate and optional feature then? Is anybody > planning to implement canonical equivalence through other mechanisms, such > that the lack of normalization would be visible in the comparison of > non-equivalent strings? > > BTW, the requirement that canonically equivalent strings compare as equal has > been part of the specification of String.prototype.localeCompare since ES3. > When testing with a handful of string pairs pulled from chapter 3 of the > Unicode Standard and from UTS 10, however, I found that only Opera on the Mac > detects their equivalence correctly. Firefox on the Mac and the V8 systems > (Chrome, Node) fail to detect any equivalence; Safari, Explorer and the > Windows versions of Opera and Firefox detect some and miss others. Obviously > people haven't been paying much attention to localeCompare... > > > I don't know enough about the first part of your message to be any use; I am, > however, interested in the second part - will you be publishing your tests > and findings? > > Rick > > > > > Norbert > > _______________________________________________ > es-discuss mailing list > es-discuss@mozilla.org > https://mail.mozilla.org/listinfo/es-discuss > _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
