Hmmm...
my @ips = qw(
127.0.0.1
10.129.30.5
10.129.30.2
255.255.255.255
10.109.30.5
142.222.130.23
10.109.1.1
142.222.87.30
);
my @sorted = map {
$_->[1];
} sort {
$a->[0] cmp $b->[0]
} map {
[
sprintf("%03d.%03d.%03d.%03d", split /\./),
$_
]
} @ips;
print map { $_.$/ } @sorted;
Is that reasonable? (I did test it - it seems to work for the example above.)
Update: Change the @sorted line to this also works:
my @sorted = map {
$_->[1];
} sort {
$a->[0] <=> $b->[0]
} map {
[
sprintf("%03d%03d%03d%03d", split /\./),
$_
]
} @ips;
This one uses numerical comparison... not really sure which one would be faster. I like the first one better if only because it looks to me like I'm doing what I say I'm doing, where as this one looks more like I'm faking it.