use lib::process_rule_pack; fn main() { let args: Vec = std::env::args().collect(); if args.len() < 2 { eprintln!("Usage: {} ", args[0]); std::process::exit(1); } match process_rule_pack(&args[1]) { Ok(result) => println!("Result: {}", result), Err(e) => eprintln!("Error: {}", e), } }