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Unicode is intended to be a universal character set for describing all the characters required for written text incorporating all writing systems, technical symbols and punctuation.
8
votes
Why does Unicode have separate codepoints for characters with identical glyphs?
In order to allow Unicode to properly round-trip encode text that was encoded in 8859-5, it had to retain those Cyrilic characters that shared glyphs with Latin or other characters. … Unicode is about the character, not its visual representation. Overall, Unicode was never meant to have a unique mapping from glyph to codepoint. …
16
votes
Accepted
Is UTF-16 fixed-width or variable-width? Why doesn't UTF-8 have byte-order problem?
Now, both UTF-16 and UTF-8 allow for multiple code units (16-bit or 8-bit values) to combine together to form a Unicode codepoint (a "character", but that's not the correct term; it is a simplification … Then, you detect if it is a surrogate pair; if it is, then you read another 16-bit value, combine the two, and from that, you get the Unicode codepoint value. …