ls.exe

//
//    Copyright 2014 Chauncey
//
//    This program is free software: you can redistribute it and/or modify
//    it under the terms of the GNU Lesser General Public License as published
//    by the Free Software Foundation, either version 3 of the License, or
//    (at your option) any later version.
//
//    This program is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU Lesser General Public License for more details.
//
//    You should have received a copy of the GNU Lesser General Public License
//    along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
//
//
//

using System;
using System.IO;
using System.Collections.Generic;

//todo: add formatting/flags

public class LS {
    static public int Main (string[] args) {
        string path = @"";
        if (args.Length == 0) {
            path = Directory.GetCurrentDirectory();
        }
        else if (args[0] == "--help") {
            //Console.WriteLine(help);
        }
        else {
            path = args[0];
        }

        //WriteOut("\n");
        WriteOut(".  ");
        WriteOut("..  ");

        getdir(path);
        WriteOut("\n");

        return 0;
    }

    public static string reverses (string a) {
        char[] input = a.ToCharArray();
        Array.Reverse(input);
        return new string(input);
    }

    static public void WriteOut (string a) {
        Console.Write(a); //make this format stuff
    }

    static public int getdir (string path) {
        string slash = (System.Environment.OSVersion.Platform == PlatformID.Win32NT) ? "\\" : "/";

        string[] fdir = Directory.GetFiles(path);
        string[] ddir = Directory.GetDirectories(path);

        List<string> list = new List<string>();
        list.AddRange(fdir);
        list.AddRange(ddir);
        string[] dir = list.ToArray();

        foreach (string key in dir) {
            string input = key;
            int index = input.LastIndexOf(slash);
            if (index != -1) {
                input = input.Substring(index+1);
            }
            WriteOut(input + "  ");
        }
        return 0;
    }
}