L2/07-122

From: Kent Karlsson
Sent: Sunday, April 22, 2007 1:30 AM
Subject: Regarding ISO/IEC JTC 1/SC 2 N3925


For consideration by the UTC and ISO/IEC JTC 1/SC 2/OWG-SORT
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Regarding ISO/IEC JTC 1/SC 2 N3925
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(http://www.unicode.org/L2/L2007/07112-02n3925.pdf).
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Note that the problem attempted to be solved by a method suggested in 
ISO/IEC JTC 1/SC 2 N 3925, has already been given a solution within the
ISO/IEC 14651 framework, and that solution is given in ISO/IEC JTC 1/SC 2/WG 2
N2715, http://std.dkuug.dk/jtc1/sc2/wg2/docs/n2715
(http://www.unicode.org/L2/L2004/04108-n2715-hangul.pdf), dated 2004-03-09.

There is no need for a preprocessing pass for doing Hangul collation in a
letter-by-letter fashion. The expansion to sequences of weights on a per
letter basis can be done entirely within the mechanisms provided by ISO/IEC
14651 without recoursing to any prehandling of the input text strings.
See N2715 for the details. I'd be happy to update/revise that document
if needed.


		/Kent Karlsson