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developments with 10646

1991-10-28 02:21:41
 With regard to the status report on 10646, and assuming for purposes of
argument that this is how things will come out, two observations and a
question that might affect the message format effort.  While they were
written independently, these comments partially reinforce Walt Daniels's
posting on the 21st.  Unlike Walt, I do not want to see RFC-XXXX contain
specific language about the handling of 10646 before it is case into
concrete, and I think that dropping mnemonic would be a poor idea even
after 10646 comes into moderately wide use.

(i) The statement
  > A claim of conformance should identify the form (UCS-2 or UCS-4), the
    implementation level, and the identified subset of characters
 implies, I think, "you can't interoperate with 10646 without a profile".
I will avoid extensive comments on the "they do it again" topic, but this
implies that any incorporation of 10646 into child-of-XXXX will require
specification of such a profile if it is to meet *our* standards of
interoperability. 

(ii) The statement
  > The UCS Transformation Format (UTF) is defined in the informative
    annex to specify a variable-length encoding of the data avoiding C0,
    C1, NUL and SPACE octets
 implies that UTF is *not* to be standardized, in the sense that the
former compaction methods were, just commented upon.  Nothing would
prevent us from adopting it, but, at a minimum, this means more profile
information.

(iii) I assume that UTF is equivalent to, or nearly so, the proposed AUC.
Could someone confirm that the only contribution to confusio here is a
change of name, or do we have two such proposals on the table?
   john

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