1*5e03b81fSJilles Tjoelker 2*5e03b81fSJilles Tjoelker# This Unicode escape sequence that has never been in range should either 3*5e03b81fSJilles Tjoelker# fail to expand or expand to a fallback. 4*5e03b81fSJilles Tjoelker 5*5e03b81fSJilles Tjoelkerc=$(eval printf %s \$\'\\Uffffff41\' 2>/dev/null) 6*5e03b81fSJilles Tjoelkerr=$(($? != 0)) 7*5e03b81fSJilles Tjoelker[ "$r.$c" = '1.' ] || [ "$r.$c" = '0.?' ] || [ "$r.$c" = $'0.\u2222' ] 8