This kind of thing can be okay for progressive checking. I normal dislike this style of code/logic but it seems a good fit for this kind of problem.
if ( $range > 500 )
{
WAT_OP();
}
elsif ( $range >= 425 )
{
some_op();
}
elsif ( $range > 400 )
{
some_other_op();
}
elsif ( $range > 300 )
{
exit 0;
}
else
{
complete_tree_op();
}
You can also do something more dispatchy–
my @action_tree = ( { test => sub { $_[0] >= 300 && $_[0] <= 400 },
action => sub { print "GUDNITES\n"; CORE::exit(0
+) } },
{ test => sub { $_[0] >= 425 && $_[0] <= 500 },
action => sub { print "OHAI\n" } } );
while ( my $signal = <SIGNAL_SOURCE> )
{
$_->{test}->($signal) && $_->{action}->() for @action_tree;
}
I'm not advocating either, or that second style of terseness, or any style or approach for that matter. Just expanding the library of options. :P