Dfc optimization

[Stephen J. Turnbull]

>>>>> "Ben" == Ben Wing <ben at 666.com> writes:

    Ben> Aidan is actually right; you can create an
    Ben> `mswindows-multibyte' coding system with any coding page,
    Ben> including EBCDIC ones, and then ASCII conversion would not be
    Ben> the identity.

But then you have the equivalent of an ISO 2022 coding system with G0
designated to something non-ASCII at initialization; by the time you
get to DFC_* stuff, you know the optimization doesn't apply.

If this isn't good enough, then I've completely misunderstood what
you're trying to do.

And if this is not true of mswindows-multibyte, good grief.  Windows
sucks far worse than I thought.


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