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Non-Unicode Character Sets

• From: Paul Prescod <paul@p...>
• To: xml-dev <xml-dev@i...>
• Date: Fri, 28 Jan 2000 16:05:47 -0600

I am told that conversion of some character sets through Unicode is
lossy and cannot be round-tripped. But it occurs ot me that as long as
one has the private use area, "unknown" characters can always be
preserved. If a particular mapping loses information, isn't that more a
weakness in the mapping then in Unicode itself? Are there some
standardized national character sets with so many non-Unicode characters
that they cannot fit into the PUA? Even with planes 15 and 16?

Is there any character set in the world that cannot be considered a
"subset of Unicode"?

-- 
 Paul Prescod  - ISOGEN Consulting Engineer speaking for himself
The new revolutionaries believe the time has come for an aggressive 
move against our oppressors. We have established a solid beachhead 
on Friday. We now intend to fight vigorously for 'casual Thursdays.'
  -- who says America's revolutionary spirit is dead?

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