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Re:Falsehoods Programmers Believe About Names (2010) by dathinab on Sunday March 07, 2021 @07:00AM (#26375205)
Yes but very few as far as I know.

There are also names which have no written form.

Also as far as I remember there are cases where there are multiple "forms" of the same character which theoretically should be purely cosmetic but over time the same name with some of it's characters in different forms has developed different "meanings" which for countries in which the "meaning" of a name matters is a relevant difference.

But as they normally don't mean anything different they have the same code point in unicode and (had when I read about it) no modifier to denote the differences either.

So while this names can somewhat be written they would have to be written in a form which can be seen as degraded by the person having the name and as such forcing them to do so might be seen as mean, impolite maybe even slightly insulting.

Sadly I don't have a reference to the article anymore. Also I don't remember the languages this appeared in but I think it was related to mandarin but I'm not completely sure.

Still the technical overhead of supporting non-unicode is massive and in general not worth it for nearly any application. Exceptions include historical use-cases cases and government use-cases. Also unicode strives to cover "all there is" so it might be "fixed" by now in some form or another.

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