I wouldn't be so quick to call Unicode characters a "fixed set", because of the way that they can be arbitrarily composed from multiple codepoints. If you've en

I wouldn't be so quick to call Unicode characters a "fixed set", because of the way that they can be arbitrarily composed from multiple codepoints. If you've encountered zalgo-text, for example, you've encountered characters made from a base letter and like 20 combining codepoints. Enumerating all of the possible characters is infeasible. To be specific, here are the codepoints in the character from Pastebin: U+0C1C [Lo] TELUGU LETTER JA U+0C4D [Mn] TELUGU SIGN VIRAMA U+0C1E [Lo] TELUGU LETTER NYA U+200C [Cf] ZERO WIDTH NON-JOINER U+0C3E [Mn] TELUGU VOWEL SIGN AA I don't know if the ZWNJ is in there to make the bug happen or to neutralize it. But the entire group of five codepoints renders and selects as one character for me (in Chrome on Ubuntu).