in reply to Regex for matching URLs with username/password and token

What about named capture groups? 
#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

for my $string (
    '--server api.blr-ocp1.lab.rbbn.com --username mgore --password ab
+c123',
    '--server api.blr-ocp1.lab.rbbn.com --token kfjshdssahdvkbvjkbj'
) {
    if ($string
        =~ /^--server\s+(?<server>\S+)\s+
            (?:--username\s+(?<username>\S+)\s+--password\s+(?<passwor
+d>\S+)
             |--token\s+(?<token>\S+))/x
    ) {
        say 'Server: ', ${^CAPTURE}{server};
        if (exists ${^CAPTURE}{token}) {
            say 'Token: ', ${^CAPTURE}{token};
        } else {
            say 'Username: ', ${^CAPTURE}{username};
            say 'Password: ', ${^CAPTURE}{password};
        }
    } else {
        say 'No match';
    }
}

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map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

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Re^2: Regex for matching URLs with username/password and token
by jdporter (Paladin) on Mar 10, 2025 at 20:22 UTC 
    use Getopt::Long;

for (
    '--server api.blr-ocp1.lab.rbbn.com --username mgore --password ab
+c123',
    '--server api.blr-ocp1.lab.rbbn.com --token kfjshdssahdvkbvjkbj',
)
{
    local @ARGV = split;
    my( $server, $username, $password, $token );
    GetOptions(
        'server=s' => \$server,
        'username=s' => \$username,
        'password=s' => \$password,
        'token=s' => \$token,
    ) or die;

    $server or die "--server is required\n";
    $token && ($username || $password) and die "cannot provide --usern
+ame or --password with --token\n";
    ($username xor $password) and die "--username and --password must 
+be provided together\n";
    $token || $username or die "must provide either --token or --usern
+ame plus --password.\n";

    if ($token)
    {
    }
    else # username+password
    {
    }
}

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