Comment by ted_dunning
4 hours ago
But these characters only look identical in some fonts. Are you saying that if you change font, some characters in a string should change appearance and others should not?
And what about the round-trip rule?
And ligatures? Aren't those a semantic distinction?
> But these characters only look identical in some fonts.
That's a problem with the fonts.
> And what about the round-trip rule?
Print Unicode on paper, then ocr it, and you'll get different Unicode. Oh, and normalization.
> ligatures
Generally an issue with rendering.
> semantic distinction
Unicode isn't about semantics (or shouldn't be). Consider 'a'. It's used for all kinds of meanings.