Charlotte Buff wrote: > Private use characters are an obvious choice but of course their > meaning is user-defined, so while all other emoji in my Shift JIS > document would receive an unambiguous Unicode mapping, Shibuya 109 > would remain vague and very limited in interchange options.
But that's exactly what private-use characters were invented for: so you can represent characters in a given character encoding framework which are not encoded for some reason. Of course you need a private agreement of some kind, but it can be as simple as "Hey, everybody, in the attached document (or in any documents I create) U+FF109 means SHIBUYA 109." Private agreements don't have to be secret or limited-distribution, and they don't have to be excessively formal. Unicode rejected the "compatibility symbols" because they would have amounted to private-use characters defined by Unicode, where the formal names and definitions of the characters were not specified but, shhh, we all know what they REALLY mean. This would have been the Wrong Thing to Do on many levels. -- Doug Ewell | Thornton, CO, US | ewellic.org
