Mark,
> Your are correct in that the text is not nearly as clear as it should be,
> and is open to different interpretations. My view of the status in Unicode
> 3.1 is represented on http://www.macchiato.com/utc/utf_comparison.htm.
> Corresponding computations are on
> http://www.macchiato.com/utc/utf_computations.htm.
>
> One of the goals for Unicode 4.0 is to clear up the text
> describing UTFs in
> particular, which may change some of the edge cases (isolates and/or
> irregulars).
I can't find D29:
it strongly recommends isolates
caveat: the text below D29 clearly says must, but that is not in D29
itself.
Why would you want isolates?
You then state:
it allows irregulars to be interpreted, but not generated.
To me this would allow you to convert utf-8s to UTF-16 but expressly forbids
generating utf-8s.
Carl
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