Gupta, Shubhagam <Shubhagam dot Gupta at ca dot com> wrote:

> Thank you for your clarification. It's clear that existing
> applications with mapping files do not require conversion to XML-based
> format, in order to conform to Unicode. I am curious however; would
> you consider XML-based format as the preferred format for future
> developments, rather than adopting the plain-text "Format A."
> available at Unicode website?

XML is probably the best format for future development in all kinds of
situations involving data.  I confess that I haven't implemented UTF #22
or much else in XML, because up to now my XML tools have been poor or
nonexistent.  However, that should change in the future as I move into
.NET programming at work.

It's too bad I was never able to find even a semi-formal definition of
Format A, just the sample files.

> Can you also elaborate about the error in section 4.2.1 of UTR 22.

It's minor:

 <!-- 2 byte form -->
 <legal type="FIRST" s="C0" e="DF" next="final" />
 <legal type="final" s="80" e="BF" />

 <!-- 3 byte form -->
 <legal type="FIRST" s="DF" e="EF" next="prefinal" />
 <legal type="prefinal" s="80" e="BF" next="final" />

These ranges are overlapping.  The second "DF" should be "E0".

-Doug Ewell
 Fullerton, California
 http://users.adelphia.net/~dewell/


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