In the spirit of TMTOWTDI, I thought that using
tie might be interesting.
##### Whirley package
package Whirley;
use strict;
my @whirlies = qw!. o 0 O 0 o!;
my $current = -1;
sub TIESCALAR {
my $type = shift;
my $class = ref $type || $type;
my $self = {};
bless $self, $class;
}
sub FETCH {
my $self = shift;
my $backspace = $current < 0 ? '' : "\b"; # don't backspace on first
+ go 'round
$current = 0 if (++$current == @whirlies);
return $backspace . $whirlies[$current];
}
##### Main package
package Main;
use strict;
$|++;
my $whirley;
tie $whirley, 'Whirley';
print "Please wait: ";
while (1) {
print $whirley;
sleep 1;
}
Cheers,
Shendal