using System;
using System.Text;
 
public class Test {
    public static void Main() {
        Action<string, Func<Encoding>> act = delegate(string name, Func<Encoding> getEncoding) {
            string encInfo = null;
            try {
                Encoding encoding = getEncoding();
                encInfo = string.Format("{0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}", new Object[]{
                    encoding.GetType().Name,
                    encoding.CodePage,
                    encoding.WindowsCodePage,
                    new Func<string>(delegate () {
                        byte[] data = encoding.GetPreamble();
                        StringBuilder sb = new StringBuilder();
                        if(data == null) {
                            sb.Append("(null)");
                        } else {
                            sb.Append(BitConverter.ToString(data).Replace("-", " "));
                            sb.Append(" ");
                            sb.Append(string.Format("({0})", new object[]{data.Length}));
                        }
                        return sb.ToString();
                    })(),
                    encoding.EncodingName,
                    encoding.HeaderName,
                    encoding.BodyName,
                    encoding.WebName,
                });
            } catch(Exception e) {
                encInfo = e.Message;
                // encInfo = "*************************";
            }
            Console.WriteLine("{0} => {1}", new object[]{name, encInfo});
        };
        Action<int> acti = delegate(int cp) {
            act(string.Format("Encoding.GetEncoding({0})", new object[]{cp}), delegate() {
                return Encoding.GetEncoding(cp);
            });
        };
        Action<string> acts = delegate(string name) {
            act(string.Format("Encoding.GetEncoding(\"{0}\")", new object[]{name}), delegate() {
                return Encoding.GetEncoding(name);
            });
        };
        Action<string, Encoding> acte = delegate(string name, Encoding encoding) {
            act(string.Format("{0}", new object[]{name}), delegate() {
                return encoding;
            });
        };

        Console.WriteLine(string.Format("OS: {0}", System.Environment.OSVersion.ToString()));
        Console.WriteLine();
        acti(1252);
        acti(932);
        acti(65001);
        acts("s-jis");
        acts("shift-jis");
        acts("cp932");
        acts("ms932");
        acts("windows-31j");
        acts("utf-7");
        acts("utf-8");
        acts("utf-16");
        acts("utf-16be");
        acts("utf-16le");
        acts("utf-32");
        acts("utf-32be");
        acts("utf-32le");
        acts("utf-7n");
        acts("utf-8n");
        acts("utf-16n");
        acts("utf-16ben");
        acts("utf-16len");
        acts("utf-32n");
        acts("utf-32ben");
        acts("utf-32len");
        acts("ucs-1");
        acts("ucs-2");
        acts("ucs-4");
        acts("S-JIS");
        acts("SHIFT-JIS");
        acts("CP932");
        acts("MS932");
        acts("WINDOWS-31J");
        acts("UTF-7");
        acts("UTF-8");
        acts("UTF-16");
        acts("UTF-16BE");
        acts("UTF-16LE");
        acts("UTF-32");
        acts("UTF-32BE");
        acts("UTF-32LE");
        acts("UTF-7N");
        acts("UTF-8N");
        acts("UTF-16N");
        acts("UTF-16BEN");
        acts("UTF-16LEN");
        acts("UTF-32N");
        acts("UTF-32BEN");
        acts("UTF-32LEN");
        acts("UCS-1");
        acts("UCS-2");
        acts("UCS-4");
        acte("Encoding.Default", Encoding.Default);
        acte("Encoding.UTF7", Encoding.UTF7);
        acte("Encoding.UTF8", Encoding.UTF8);
        acte("Encoding.Unicode", Encoding.Unicode);
        acte("Encoding.BigEndianUnicode", Encoding.BigEndianUnicode);
        acte("Encoding.UTF32", Encoding.UTF32);
    }
}