Bit arithmetic on Unicode characters?

Ken Shirriff ken.shirriff at
Sat Oct 8 10:24:59 CDT 2016

Looking at the image, the idea of the proposal is to include chess piece
symbols in all four 90° rotations? Wouldn't it be better to do this in
markup than in Unicode? I fear a combinatorial explosion if Unicode starts
including all the possible orientations of characters. (Maybe there's a
good reason to do this for chess; I'm just going off the image


On Fri, Oct 7, 2016 at 9:36 PM, Garth Wallace <gwalla at> wrote:

> Sorry about the blank reply. Itchy trigger finger.
> On Thu, Oct 6, 2016 at 2:28 PM, Ken Whistler <kenwhistler at> wrote:
>> On 10/6/2016 12:44 PM, Garth Wallace wrote:
>> Some representatives of the WFCC have proposed alternate arrangements
>> that assume there will be a need for bitwise operations to covert between
>> the existing chess symbols in the Miscellaneous Symbols block and related
>> symbols in the new block. I don't see the need but maybe I'm missing
>> something.
>> I don't think you are missing anything. Bitwise operations would
>> certainly *not* be needed in a case like this. Small lookup and mapping
>> tables would suffice.
>> --Ken
> Thank you.
> Just to be clear, this is the proposed allocation as it stands:
> proposed%20characters_zps81m0frvl.png
> That arrangement is the result of some discussion with a representative of
> the WFCC.
> And here are the alternatives that another WFCC representative recently
> proposed and that prompted my question:
> albums/ss7/Garth_Wallace/wfcc%20alternatives_zpstdvfgcf2.png
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