I need the output to be a special character from an arrow pointing to the right (→) for example, whose Unicode code is U + 1F812. I have tried to write in various ways always with \ or % preceding the Unicode code (similar to writing a tab or breaking line) and get the following error:
> bash: syntax error near unexpected token '"\u2191"'
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How should the syntax for the output of these special characters be and what UTF-8, UTF-32 etc. should be. interfere with this?
You need to install the library with UTF-8 support, otherwise you will not be able to use it.
If you are going to install by luarocks , check the Lua libraries directory, the files may not be in the required directory.
$ luarocks install utf8
# ou
$ luarocks install lua-utf8
I recommend the first one.
utf8 = require "utf8"
seta = utf8.char(2191) -- Nos meus testes o valor 9658 retornou uma seta
print(seta)
On Lua 5.3, you can use "\u{2191}" . The keys are required.
Moon 5.3 also includes a utf8 library and you can use utf8.char(2191) .