add_alert
action == add_form && prev_action == add_alert
|| action == add_alert && prev_action == add_form
action == any_alert && prev_action == add_alert
|| action == add_alert && prev_action == any_alert
action = set_action(add_alert, "-A");
action = set_action(add_alert, "-Q");
action = set_action(add_alert, "-W");
add_alert (form, input, new_alert, u)
static int add_alert ( char * , FILE * , FALERT * , char * );
static int add_alert();