Learning Perl Objects, References amp;amp; Modules [Electronic resources] نسخه متنی

A.11 Answer for Chapter 12

A.11.1 Exercise (Section 12.12.1)

The module Oogaboogoo/date.pm looks like this:

package Oogaboogoo::date;
use strict;
use Exporter;
our @ISA = qw(Exporter);
our @EXPORT = qw(day mon);
my @day = qw(ark dip wap sen pop sep kir);
my @mon = qw(diz pod bod rod sip wax lin sen kun fiz nap dep);
sub day {
my $num = shift @_;
die "$num is not a valid day number"
unless $num >= 0 and $num <= 6;
$day[$num];
}
sub mon {
my $num = shift @_;
die "$num is not a valid month number"
unless $num >= 0 and $num <= 11;
$mon[$num];
}
1;

The main program now looks like this:

use strict;
use Oogaboogoo::date qw(day mon);
my($sec, $min, $hour, $mday, $mon, $year, $wday) = localtime;
my $day_name = day($wday);
my $mon_name = mon($mon);
$year += 1900;
print "Today is $day_name, $mon_name $mday, $year.\n";