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I hope luajit will backport the utf-8 library.

A little bit OT here but I always think the situation of lua 5.1/5.2 is just like python2/python3. E.g. lots of applications' embedded lua version is still 5.1 (Lightroom, Max 7, WoW?, Codea on iPad). Some packages like Metalua still only run on 5.1.



There are a few utf-8 libs for lua, some in pure Lua.

https://github.com/starwing/luautf8

https://github.com/luapower/utf8/blob/master/utf8.lua


I believe the main issue is there are too many such libraries and text is such an elementary piece of exchanged data.


utf-8 is trivial. There aren't major issues with processing code points. Having several libraries is fine.


They are much closer together though. 5.3 is a bigger change because of integers.




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