module trim

# Perl trim function to remove whitespace from the start and end of the string
sub trim($)
{
my $string = shift;
$string =~ s/^\s+//;
$string =~ s/\s+$//;
return $string;
}

sub ltrim($)
{
my $string = shift;
$string =~ s/^\s+//;
return $string;
}

sub rtrim($)
{
my $string = shift;
$string =~ s/\s+$//;
return $string;
}