Marshall++ for pointing out the most obvious solution. However, since it is possible that you have simplified what you are trying to accomplish, here are three alternatives.You can decide which is best.
sub display_paragraph() {
my $aref = shift;
my $indentation = shift;
my $first_time = 0; # declare and init a flag
for my $line (@$aref) {
if (++$first_time == 1) { # change and test the flag
print ' ' x $indentation;
}
print "$line\n";
}
}
use 5.010;
sub display_paragraph() {
my $aref = shift;
my $indentation = shift;
for my $line (@$aref) {
state $first_time = 0; # declare and init a flag
if (++$first_time == 1) { # change and test the flag
print ' ' x $indentation;
}
print "$line\n";
}
}
sub display_paragraph() {
my $aref = shift;
my $indentation = shift;
while (my ($index, $line) = each @$aref) {
if ($index == 0) { # test the position
print ' ' x $indentation;
}
print "$line\n";
}
}