#![feature(macro_rules)] #![crate_id(name="basename", vers="1.0.0", author="Jimmy Lu")] /* * This file is part of the uutils coreutils package. * * (c) Jimmy Lu * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ extern crate getopts; extern crate libc; use std::io::{print, println}; use std::os; use std::str::StrSlice; #[path = "../common/util.rs"] mod util; static NAME: &'static str = "basename"; static VERSION: &'static str = "1.0.0"; #[allow(dead_code)] fn main() { os::set_exit_status(uumain(os::args())); } pub fn uumain(args: Vec) -> int { let program = strip_dir(args.get(0).as_slice()); // // Argument parsing // let opts = [ getopts::optflag("h", "help", "display this help and exit"), getopts::optflag("V", "version", "output version information and exit"), ]; let matches = match getopts::getopts(args.tail(), opts) { Ok(m) => m, Err(f) => crash!(1, "Invalid options\n{}", f) }; if matches.opt_present("help") { println!("Usage: {0:s} NAME [SUFFIX]", program); println!(" or: {0:s} OPTION", program); println!("Print NAME with any leading directory components removed."); println!("If specified, also remove a trailing SUFFIX."); print(getopts::usage("", opts).as_slice()); return 0; } if matches.opt_present("version") { println!("{} {}", program, VERSION); return 0; } // too few arguments if args.len() < 2 { println!("{}: {}", program, "missing operand"); println!("Try '{} --help' for more information.", program); return 0; } // too many arguments else if args.len() > 3 { println!("{}: extra operand '{}'", program, args.get(3)); println!("Try '{} --help' for more information.", program); return 0; } // // Main Program Processing // let fullname = args.get(1); let mut name = strip_dir(fullname.as_slice()); if args.len() > 2 { let suffix = args.get(2).clone(); name = strip_suffix(name.as_slice(), suffix.as_slice()); } println(name.as_slice()); 0 } fn strip_dir(fullname: &str) -> String { let mut name = String::new(); for c in fullname.chars().rev() { if c == '/' || c == '\\' { break; } name.push_char(c); } name.as_slice().chars().rev().collect() } fn strip_suffix(name: &str, suffix: &str) -> String { if name == suffix { return name.into_string(); } if name.ends_with(suffix) { return name.slice_to(name.len() - suffix.len()).into_string(); } name.into_string() }