From: Michael S. Kaplan (michka@trigeminal.com)
Date: Sun Oct 07 2007 - 08:26:58 CDT
Perhaps in the interests of not boring everyone to tears, could we leave the
definitional/wordsmithing side of all of this to the Editorial Committee and
focus on actual technical issues?
Please?
Thanks,
MichKa [Microsoft]
----- Original Message -----
From: "Philippe Verdy" <verdy_p@wanadoo.fr>
To: <dominikus@scherkl.de>
Cc: "'Mike'" <mike-list@pobox.com>; "'Andy Heninger'"
<andy.heninger@gmail.com>; "'Mark Davis'" <mark.davis@icu-project.org>;
"'Unicode'" <unicode@unicode.org>
Sent: Sunday, October 07, 2007 5:49 AM
Subject: RE: Proposal for matching negated sets (was Re: New Public Review
Issue: Proposed Update UTS #18)
>> De : Dominikus Scherkl [mailto:lyratelle@gmx.de]
>> Envoyé : dimanche 7 octobre 2007 14:04
>> À : verdy_p@wanadoo.fr>> Cc : 'Mike'; 'Andy Heninger'; 'Mark Davis';
>> 'Unicode'
>> Objet : Re: Proposal for matching negated sets (was Re: New Public Review
>> Issue: Proposed Update UTS #18)
>>
>> Philippe Verdy schrieb:
>> > Mark, the question is not "if sets don't have an implied ordering". By
>> > definition a set is a unordered thing. There does not exist any ordered
>> set.
>> Of course there exists ordered sets!
>> If you put an ordering on a set, it still remains a set.
>
> No! It becomes a vector or list and behaves very differently : you need
> special code to handle insertions (that require reordering, or inefficient
> representation as a list through costly pointer indirections, or costly
> copy-on-move operations).
> And you do not need maintaining the order offsets at runtime for allthe
> internal steps of computing the output. It'sbest to sort the output only
> at
> end.
>
>
>
>
>
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