grammar WHOLEFILE {
    rule TOP { <marker> <inside> <marker> };
    rule marker { '{' | '}' };
    rule inside { <things>+ };
    rule things { .+ | \s+ };
};

my $r = WHOLEFILE.parse( '{\nsasdf daqwd\ndwesdd\ndadsd\ndssadw dwesad\n}' );

say $r;  # (Any)