2014-02-05 10:23:53 +00:00
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#[feature(macro_rules)];
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2014-01-07 00:54:02 +00:00
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#[crate_id(name="basename", vers="1.0.0", author="Jimmy Lu")];
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2013-12-03 04:41:16 +00:00
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/*
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* This file is part of the uutils coreutils package.
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*
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* (c) Jimmy Lu <jimmy.lu.2011@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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extern mod extra;
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2014-02-07 06:39:07 +00:00
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extern mod getopts;
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2013-12-03 04:41:16 +00:00
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2014-02-04 05:58:53 +00:00
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use std::io::{print, println};
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2013-12-03 04:41:16 +00:00
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use std::os;
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use std::str;
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use std::str::StrSlice;
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2014-02-07 06:39:07 +00:00
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#[path = "../util.rs"]
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mod util;
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2013-12-03 04:41:16 +00:00
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2014-02-07 06:39:07 +00:00
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static NAME: &'static str = "basename";
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static VERSION: &'static str = "1.0.0";
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2014-02-05 10:23:53 +00:00
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2013-12-03 04:41:16 +00:00
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fn main() {
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let args = os::args();
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2013-12-04 15:41:32 +00:00
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let program = strip_dir(&args[ 0 ].clone());
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2013-12-03 04:41:16 +00:00
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//
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// Argument parsing
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//
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let opts = ~[
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2014-02-07 06:39:07 +00:00
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getopts::optflag("h", "help", "display this help and exit"),
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getopts::optflag("V", "version", "output version information and exit"),
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2013-12-03 04:41:16 +00:00
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];
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2014-02-07 06:39:07 +00:00
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let matches = match getopts::getopts(args.tail(), opts) {
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2014-02-04 05:58:53 +00:00
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Ok(m) => m,
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2014-02-05 10:23:53 +00:00
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Err(f) => crash!(1, "Invalid options\n{}", f.to_err_msg())
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2013-12-03 04:41:16 +00:00
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};
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2013-12-04 15:41:32 +00:00
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if matches.opt_present("help") {
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println!("Usage: {0:s} NAME [SUFFIX]", program);
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println!(" or: {0:s} OPTION", program);
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2014-01-13 09:05:02 +00:00
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println!("Print NAME with any leading directory components removed.");
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println!("If specified, also remove a trailing SUFFIX.");
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2013-12-03 04:41:16 +00:00
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2014-02-07 06:39:07 +00:00
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print(getopts::usage("", opts));
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2013-12-03 04:41:16 +00:00
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return;
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}
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2013-12-04 15:41:32 +00:00
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if matches.opt_present("version") {
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println(program + " " + VERSION);
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2013-12-03 04:41:16 +00:00
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return;
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}
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// too few arguments
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if args.len() < 2 {
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2013-12-04 15:41:32 +00:00
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println(program + ": missing operand");
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println("Try `" + program + " --help' for more information.");
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2013-12-03 04:41:16 +00:00
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return;
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}
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// too many arguments
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else if args.len() > 3 {
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2013-12-04 15:41:32 +00:00
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println(program + ": extra operand `" + args[ 3 ] + "'");
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println("Try `" + program + " --help' for more information.");
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2013-12-03 04:41:16 +00:00
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return;
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}
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//
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// Main Program Processing
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//
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let fullname = args[ 1 ].clone();
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2013-12-04 15:41:32 +00:00
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let mut name = strip_dir(&fullname);
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2013-12-03 04:41:16 +00:00
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if args.len() > 2 {
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let suffix = args[ 2 ].clone();
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2013-12-04 15:41:32 +00:00
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name = strip_suffix(&name, &suffix);
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2013-12-03 04:41:16 +00:00
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}
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2013-12-04 15:41:32 +00:00
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println(name);
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2013-12-03 04:41:16 +00:00
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}
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2013-12-04 15:41:32 +00:00
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fn strip_dir(fullname :&~str) -> ~str {
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2013-12-03 04:41:16 +00:00
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let mut name = ~"";
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2014-01-07 00:54:02 +00:00
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for c in fullname.chars_rev() {
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2013-12-03 04:41:16 +00:00
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if c == '/' || c == '\\' {
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return name;
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}
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2013-12-04 15:41:32 +00:00
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name = str::from_char(c) + name;
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2013-12-03 04:41:16 +00:00
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}
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return fullname.clone();
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}
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2013-12-04 15:41:32 +00:00
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fn strip_suffix(name: &~str, suffix: &~str) -> ~str {
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2013-12-03 04:41:16 +00:00
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if name == suffix {
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return name.clone();
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}
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2013-12-04 15:41:32 +00:00
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if name.ends_with(*suffix) {
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return name.slice_to(name.len() - suffix.len()).into_owned();
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2013-12-03 04:41:16 +00:00
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}
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return name.clone();
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}
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