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From Richard Liang <richard.lian...@gmail.com>
Subject Re: [classlib][luni]difference between RI and ICU
Date Tue, 12 Sep 2006 06:35:30 GMT

I will clarify this issue with ICU team. ;-)

Best regards,

Tony Wu wrote:
> I encounter a problem when implement isWhiteSpace(int) in j.l.Character.
> There is a difference between RI and ICU.
> RI spec says,
>> It is a Unicode szpace character (SPACE_SEPARATOR, LINE_SEPARATOR, or
>> PARAGRAPH_SEPARATOR) but is not also a non-breaking space ('\u00A0',
>> '\u2007', '\u202F').
> but ICU spec says,
>> It is a Unicode space separator (category "Zs"), but is not a no-break
>> space (\u00A0 or \u202F or \uFEFF).
> RI excludes U+2007 however ICU excludes U+FEFF
> And I looked up the definition of these 4 related characters on 
> unicode.org:
>> 00A0;NO-BREAK SPACE;Zs;0;CS;<noBreak> 0020;;;;N;NON-BREAKING SPACE;;;;
>> 2007;FIGURE SPACE;Zs;0;WS;<noBreak> 0020;;;;N;;;;;
>> 202F;NARROW NO-BREAK SPACE;Zs;0;CS;<noBreak> 0020;;;;N;;;;;
> I consider it is a bug of ICU because the U+FEFF is not in category 
> *Zs* as
> ICU spec described. And I purposed to report that to ICU team.
> Should I handle the U+2007 by ourselves to follow RI or just document 
> this
> problem in testcase?

Richard Liang
China Software Development Lab, IBM 

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