| 33 | } |
| 34 | |
| 35 | pub fn parse_arguments(args: &[String]) -> Command { |
| 36 | let args_len = args.len(); |
| 37 | |
| 38 | if args.iter().any(|i| i == "--help" || i == "-h") { |
| 39 | return Command::Help; |
| 40 | } |
| 41 | |
| 42 | if args.iter().any(|i| i == "--version" || i == "-v") { |
| 43 | return Command::Version; |
| 44 | } |
| 45 | |
| 46 | let mut optional_query: Option<String> = None; |
| 47 | let mut arguments = Arguments::new(); |
| 48 | |
| 49 | let mut arg_index = 1; |
| 50 | loop { |
| 51 | if arg_index >= args_len { |
| 52 | break; |
| 53 | } |
| 54 | |
| 55 | let arg = &args[arg_index]; |
| 56 | |
| 57 | if !arg.starts_with('-') { |
| 58 | return Command::Error(format!("Unknown argument {}", arg)); |
| 59 | } |
| 60 | |
| 61 | match arg.as_ref() { |
| 62 | "--files" | "-f" => { |
| 63 | arg_index += 1; |
| 64 | if arg_index >= args_len { |
| 65 | let message = format!("Argument {} must be followed by one or more path", arg); |
| 66 | return Command::Error(message); |
| 67 | } |
| 68 | |
| 69 | loop { |
| 70 | if arg_index >= args_len { |
| 71 | break; |
| 72 | } |
| 73 | |
| 74 | let files = &args[arg_index]; |
| 75 | if !files.starts_with('-') { |
| 76 | arguments.files.push(files.to_string()); |
| 77 | arg_index += 1; |
| 78 | continue; |
| 79 | } |
| 80 | |
| 81 | break; |
| 82 | } |
| 83 | |
| 84 | if arguments.files.is_empty() { |
| 85 | return Command::Error("Must provide one or more C/C++ files".to_string()); |
| 86 | } |
| 87 | } |
| 88 | "--query" | "-q" => { |
| 89 | arg_index += 1; |
| 90 | if arg_index >= args_len { |
| 91 | let message = format!("Argument {} must be followed by the query", arg); |
| 92 | return Command::Error(message); |