Hello.

I'm trying to use an option with an optional value and then test whether the option was used and if so whether an optional value was used with it; here's what I have:

use strict;
use warnings;

my $foo = undef;

GetOptions(
    'foo:s' => \$foo,
);

my $sn = $ARGV[0];

if ($foo and $foo ne undef) {
    print "foo option used with optional value: $foo \n";
} elsif ($foo) {
    print "foo option used with no optional value \n";
} else {
    print "foo option not used at all \n";
}

[download]

That doesn't work, but hopefully it better illustrates what I'm trying to do.

Any help would be greatly appreciated.

In reply to Options with optional values and condititions by Qukz

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