From: Gregg Reynolds (firstname.lastname@example.org)
Date: Thu Aug 25 2005 - 07:26:18 CDT
Richard Wordingham wrote:
> Gregg Reynolds wrote:
>> Hmmm, I see what you mean, but I don't think that's an issue for the
>> Open Type spec. Informing the client of *anything* is beyond the
>> scope of OT - it's just a set of tables and rules for looking things
>> up. I don't see any reason an OpenType engine could not provide the
>> info you note above - all the info is there.
> No, it isn't! There is nothing in the substitution definition in the
> GSUB table to distinguish substitution from swapping.
Aha, thank you, the scales fall from my eyes. IOW, the OT engine could
report that it made a substitution, but it has no way of knowing that
any particular substitution is in effect a swap, since it doesn't know
anything about glyph/character identity. Correct?
> The GSUB
> substitution does *not* support swapping - just replacement, fusion and
How about a new feature definition: "swap"?
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