@asdf .~@#$%^&*()_-+=[]|:<>,.?/;
@asdf "f'o" 'b"r' url(baz) url("qux");
@asdf foo //
      bar;
@asdf foo /* bar */ baz;
@asdf 3;
@asdf "foo bar baz";
@asdf "foo bar baz";
@asdf url(http://).com/);
@asdf url("http://).com/");