In what way does UTF-16 "use" surrogate code /points/? An encoding form
is a mapping. Let's look at this mapping:
* One _inputs_ scalar values (not surrogate code points).
* The encoding form will _output_ a short sequence of encoding
form–specific code units. (Various voices on this list have stated
that these should never be called code points.)
* The _algorithm mapping from input to output_ doesn't make use of
surrogate code points. (Even though the Glossary states, under
"Surrogate Code Point", that they are "for use by UTF-16".) The only
"use" is indirect, through awareness of the positioning and size of
the range of non-code-point scalar values.
Received on Tue Sep 17 2013 - 21:58:49 CDT
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