% my $str = "This line is Perl until the linefeed."; # cannot contain whitespace at the beginning!!!
<%perl>
my $str2 = "This is a Perl block";
%perl>
<%args>
$a # this is a special block
$b
%args>
Hello <% $monkname %>!
It is <& /lib/mason_components/weather_forecast.mas, fmt => 'Celsius' &> celsius degrees outside!