On 10 February 2017 at 14:46, Laurent FAILLIE <firstname.lastname@example.org
> \27 is working, thanks :)
> (I thought it was octal code ... but it wasn't).
> Anyway, hexa notation not working for me.
Are you using Lua 5.1? According to the manuals, hex notation with \x
was introduced in Lua 5.2.