set -e

[ $'hi' = hi ]
[ $'hi
there' = 'hi
there' ]
[ $'\"\'\\\a\b\f\t\v' = "\"'\\$(printf "\a\b\f\t\v")" ]
[ $'hi\nthere' = 'hi
there' ]
[ $'a\rb' = "$(printf "a\rb")" ]