Are 6 octet UTF-8 sequences valid?

Question

Can UTF-8 encode 5 or 6 byte sequences, allowing all Unicode characters to be encoded? I\'m getting conflicting standards. I need to be able to support every Unico

Answer 1

Both UTF-8 and UTF-16 allow all Unicode characters to be encoded. What UTF-8 is not allowed to do is to encode upper and lower surrogate halves (which UTF-16 uses) or values above U+10FFFF, which aren't legal Unicode.

Note that the BMP ends at U+FFFF.