Ask HN: Super-summary to go from "grapheme" to "bytes"?

2 points

zepearl

2 years ago

Is this super-summary correct, to understand how what's shown on the user's screen is expanded into single bytes?

1) A user sees some character on his/her screen => that's a "grapheme", which is a collection of...

2) ...1 to N "Unicode code points", where a single "Unicode code point" can use...

3) ...1 to 6 "UTF-8" bytes.

Is that right (in the case of UTF-8 storage)?

(I feel like that I'm missing an intermediate step...)

(indirectly related to "You can't just assume UTF-8" https://news.ycombinator.com/item?id=40195009 , comment https://news.ycombinator.com/item?id=40206149 , link mentioned in that comment being https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-software-developer-absolutely-positively-must-know-about-unicode-and-character-sets-no-excuses/ )

Thx :o)

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