use strict;
use warnings;

use HTML::Template::Compiled;

my $htc = HTML::Template::Compiled->new(
tagstyle => [qw(+asp -comment -php -tt)],
scalarref => \<<'EOT');
    <%= var%>
    <%LOOP loop%>
        <%= var%>
        value? <%= __HTC__.param.var%>
    <%/LOOP%>
EOT
$htc->param(
    var  => 'value',
    loop => [{var => 'loop_value'}],
);
print $htc->output();

__END__
    value

        loop_value
        value?