BEGIN {
    print "=== Simple Standard Library Test ==="
}

RAWK {
    $test_email = (email) -> {
        return is_email(email);
    };
}

{
    # Test email validation
    result = test_email("user@example.com");
    print "Email test result:", result;
    
    # Test direct function calls
    print "is_number(42):", is_number(42);
    print "is_string('hello'):", is_string("hello");
    
    print "Test completed";
    exit 0;
}