Re: [icu-support] Collation in ICU 3.4 with ALTERNATE SHIFTED-strange results

[Scott M. <Sco...@sa...>]

Thanks.  That was enough to identify what appears to be an unintentional =
call to setVariableTop.

Again, much appreciated.

Scott

-----Original Message-----
From: icu...@li... =
[mailto:icu...@li...] On Behalf Of weiv
Sent: Wednesday, December 13, 2006 4:39 PM
To: ICU support mailing list
Subject: Re: [icu-support] Collation in ICU 3.4 with ALTERNATE =
SHIFTED-strange results

Well, that's the exact reason why I asked for a code snippet - to see if =
there is something obviously wrong. Anyway, what I see from your =
sortkeys is that when you turn on ALTERNATE_SHIFTED digit zero '0' =20
gets shifted to quaternary level and thus ignored on primary. =20
Therefore, you get the ordering that would be expected if 0 was removed =
i.e. 21, 23, 24.

Now, as to why 0 is shifted - it is because at the time of execution its =
primary CE value is at or below variable top. This can happen due to the =
tailoring rule, or a runtime setting. It also might be a bug in 3.4 =
code. I'm not aware if there are online demos that utilize 3.4, but you =
could try diffing code bases and rules from 3.4 and 3.6.

Thanks!

Regards,
v.

On Dec 13, 2006, at 1:13 PM, Scott Mebust wrote:

> I'm referring to the strings "2004", "2010", and "23".  Numeric =20
> collation is NOT on.  I'm not sure what code snippet you'd want.  =20
> It's a standard instantiation of a collator along with option =20
> settings.
>
> This may well be a problem in my usage of the ICU, which is why I'd =20
> like a sanity check.  Is there a demo page running 3.4?
>
> Thanks,
> Scott
>
>
> -----Original Message-----
> From: icu...@li... [mailto:icu-support-=20
> bo...@li...] On Behalf Of weiv
> Sent: Wednesday, December 13, 2006 4:00 PM
> To: ICU support mailing list
> Subject: Re: [icu-support] Collation in ICU 3.4 with ALTERNATE =20
> SHIFTED -strange results
>
> Hi Scott,
>
> are you referring to strings "2004" "2010" "23" or code points? Do =20
> you have numeric collation turned on or off? Could you provide the =20
> code snippet?
>
> Thank you very much for reporting this.
>
> Regards,
> v.
>
> On Dec 13, 2006, at 12:53 PM, Scott Mebust wrote:
>
>>
>> Is there a problem with 3.4 and ALTERNATE SHIFTED?  I'm sorting with
>> an en_US locale, a STRENGTH of 4, and ALTERNATE SHIFTED and I'm
>> getting some strange results.  I'm sorting a list of three
>> strings:
>>
>>   2004
>>   2010
>>   23
>>
>> and ICU 3.4 is returning the keys:
>>
>>   25 7E 25 82 01 06 01 06 01 26 25 7A 25 7A 26 00
>>   25 7E 25 7C 01 06 01 06 01 26 25 7A 26 25 7A 00
>>   25 7E 25 80 01 06 01 06 01 27 00
>>
>> respectively and this results in an order of:
>>
>>   2010
>>   23
>>   2004
>>
>> Without ALTERNATE SHIFTED, I get the following keys:
>>
>>   25 7E 25 7A 25 7A 25 82 01 08 01 08 01 26 00
>>   25 7E 25 7A 25 7C 25 7A 01 08 01 08 01 26 00
>>   25 7E 25 80 01 06 01 06 01 24 00
>>
>> and this results in the order:
>>
>>   2004
>>   2010
>>   23
>>
>> I checked against the demo page here:
>>
>>   =
http://demo.icu-project.org/icu-bin/locexp?_=3Den_US&d_=3Den&x=3Dcol
>>
>> with and without the additional custom rule [alternate shifted] but
>> this is returning different keys, leading me to think that this demo
>> page might be using 3.6.
>>
>> Can anyone offer a quick sanity check here?  It would be much
>> appreciated.
>>
>> Scott
>>
>>
>> --------------------------------------------------------------------- =

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