use Plake qw(target my_builder);

# ... Open file...
# Parse
while(<F>) {
		Plake::parse($_);
}

# Setup targets (and whatever else)
eval $Plake::CODE;

# Build a target. $src is the assembled content. $target is
# the path to the output file that should be created, if one
# is defined.
$stickler_mode = 'on';
my ($target, $src) = Plake::build('target_name', $stickler_mode);

# ... Now, do something with $target and $src ...