this post was submitted on 02 Nov 2023
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Are you losst? (startrek.website)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
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[–] [email protected] 8 points 1 year ago (3 children)

How many unicode characters could you add to the standard until it becomes unreliable?

[–] [email protected] 29 points 1 year ago* (last edited 1 year ago)

aparently unicode supports about 1.1 million characters, and we ~~currently only use 96,382 as of version 4.0~~

EDIT: i just read that unicode 4.0 is very outdated, current version is unicode 15.1 with 149,878 characters.

[–] [email protected] 6 points 1 year ago

I am developing a language consisting of only communicating in different versions of zip-archive bombs

[–] [email protected] 1 points 1 year ago (1 children)

A Unicode character can be up to 4 bytes, so 2^32 or 4,294,967,296 potential unique characters. And it'd be easy enough to adjust the standard to allow for an extra byte(s) if necessary -- it's been done before.

[–] [email protected] 4 points 1 year ago* (last edited 1 year ago)

This is incorrect. While in UTF-32 a character (actually a code point) requires 4 bytes, and in UTF-8 up to 4 bytes, the Unicode standard is limited to 17*2^16 code points. (edit: apparently because that is the limit of UTF-16. 4 Byte UTF-8 can encode 2^21 code points, but it is not technically limited to four bytes, so in total is a ble to encode 2^31 code points)

Unicode is the standard that says "the thing we call captial A is the 65th character", literally defining a mapping from numbers to concepts.
UTF-8 or UTF-32 are a way to encode a list of numbers in a more (UTF-8) or less (UTF-32) efficient way.