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> For strings in Lua source code, lexicographic ordering is obviously
> locale-dependent.  But how much can one rely on?  Lua runs on some
> non-ASCII compliant platforms (EBCDIC springs to mind), but is there
> any platform supporting Lua
> on which the following program prints something?
>       s =" 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
>       for i=2,#s do if s:sub(i,i)<=s:sub(i-1,i-1) then print(i) end end

This will print something in EBCDIC because 'A' < '9' there according to [1].
I haven't tested it though, not having access to an EBCDIC machine...