Way late on the post again, jeffa comes in with TIMTOWTDI (and places vote on style 'B' as long as more choices won't be added).

Consider this nasty block:

my $arg = shift;

if ($arg eq 'one') {
    do_stuff()
}
elsif ($arg eq 'two') {
    do_other_stuff()
}
elsif ($arg eq 'three') {
    do_even_more_other_stuff()
}
else {
    do_yet_even_more_other_stuff()
}
[download]

To this, much nicer block:

my $arg = shift || 'DEFAULT';
my %lookup = (
    one     => \&do_stuff,
    two     => \&do_other_stuff,
    three   => \&do_even_more_other_stuff,
    DEFAULT => \&do_yet_even_more_other_stuff,
);

$lookup{$arg}->();
[download]

Who even needs if? :D (um, sarcasm)

jeffa