Merge remote-tracking branch 'BeyondSora/basename'

Conflicts:
	README.md

Makefile

@@ -24,6 +24,7 @@ PROGS       := \
   wc \
   whoami \
   yes \
+  basename \
 
 BUILD       ?= $(PROGS)
 

README.md

@@ -69,7 +69,6 @@ The steps above imply that, before starting to work on a utility, you should sea
 To do
 -----
 
-- basename
 - chcon
 - chgrp
 - chmod

basename/basename.rs

@@ -0,0 +1,115 @@
+#[link(name="basename", vers="1.0.0", author="Jimmy Lu")];
+
+/*
+ * This file is part of the uutils coreutils package.
+ *
+ * (c) Jimmy Lu <jimmy.lu.2011@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+extern mod extra;
+
+use std::io::stderr;
+use std::os;
+use std::str;
+use std::str::StrSlice;
+use extra::getopts::groups;
+
+static VERSION: &'static str = "1.0.0";
+
+fn main() {
+    let args = os::args();
+
+    let program = strip_dir(&args[ 0 ].clone());
+
+    //
+    // Argument parsing
+    //
+
+    let opts = ~[
+        groups::optflag("h", "help", "display this help and exit"),
+        groups::optflag("V", "version", "output version information and exit"),
+    ];
+
+    let matches = match groups::getopts(args.tail(), opts) {
+        Ok(m) => m,
+        Err(f) => {
+            let stderr = stderr();
+            stderr.write_str(program + ": " + f.to_err_msg() + "\n");
+            os::set_exit_status(1);
+            return;
+        }
+    };
+
+    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(groups::usage("", opts));
+
+        return;
+    }
+
+    if matches.opt_present("version") {
+        println(program + " " + VERSION);
+        return;
+    }
+
+    // too few arguments
+    if args.len() < 2 {
+        println(program + ": missing operand");
+        println("Try `" + program + " --help' for more information.");
+        return;
+    }
+    // too many arguments
+    else if args.len() > 3 {
+        println(program + ": extra operand `" + args[ 3 ] + "'");
+        println("Try `" + program + " --help' for more information.");
+        return;
+    }
+
+    //
+    // Main Program Processing
+    //
+
+    let fullname = args[ 1 ].clone();
+
+    let mut name = strip_dir(&fullname);
+
+    if args.len() > 2 {
+        let suffix = args[ 2 ].clone();
+        name = strip_suffix(&name, &suffix);
+    }
+
+    println(name);
+}
+
+fn strip_dir(fullname :&~str) -> ~str {
+    let mut name = ~"";
+
+    for c in fullname.rev_iter() {
+        if c == '/' || c == '\\' {
+            return name;
+        }
+
+        name = str::from_char(c) + name;
+    }
+
+    return fullname.clone();
+}
+
+fn strip_suffix(name: &~str, suffix: &~str) -> ~str {
+    if name == suffix {
+        return name.clone();
+    }
+
+    if name.ends_with(*suffix) {
+        return name.slice_to(name.len() - suffix.len()).into_owned();
+    }
+
+    return name.clone();
+}