On Wed, Jan 9, 2019 at 9:47 AM Hans Hagen <j.hagen@xs4all.nl> wrote:

so you need:

require "char-ini"

local s = "Ä"


also 
 
if not characters then
    require("char-ini")
end
local s = "Ä"
print(characters.uccode(s))

--
luigi