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using System.Reflection;
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using System.Net.Sockets;
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using System.Threading;
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using System.Collections.Specialized;
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using ICSharpCode.SharpZipLib.Zip.Compression;
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using System.Collections;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Globalization;
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using System.Runtime.CompilerServices;
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using System.Text.RegularExpressions;
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internal static class Extensions
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private static readonly long EPOCH_TICKS;
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DateTime time = new DateTime (1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
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EPOCH_TICKS = time.Ticks;
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public static void Add<T> (this IList<T> list, int index, T item)
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list.Insert (index, item);
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public static StringBuilder AppendRange (this StringBuilder sb, string str, int start, int end)
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return sb.Append (str, start, end - start);
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public static StringBuilder Delete (this StringBuilder sb, int start, int end)
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return sb.Remove (start, end - start);
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public static void SetCharAt (this StringBuilder sb, int index, char c)
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public static int IndexOf (this StringBuilder sb, string str)
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return sb.ToString ().IndexOf (str);
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public static Iterable<T> AsIterable<T> (this IEnumerable<T> s)
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return new EnumerableWrapper<T> (s);
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public static int BitCount (int val)
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for (int i = 0; i < 32; i++) {
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public static IndexOutOfRangeException CreateIndexOutOfRangeException (int index)
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return new IndexOutOfRangeException ("Index: " + index);
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public static CultureInfo CreateLocale (string language, string country, string variant)
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return CultureInfo.GetCultureInfo ("en-US");
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public static string Name (this Encoding e)
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return e.BodyName.ToUpper ();
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public static string Decode (this Encoding e, byte[] chars, int start, int len)
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byte[] bom = e.GetPreamble ();
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if (bom != null && bom.Length > 0) {
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if (len >= bom.Length) {
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for (int n=0; n<bom.Length && hasBom; n++) {
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if (bom[n] != chars [pos++])
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return e.GetString (chars, start, len);
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} catch (DecoderFallbackException) {
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throw new CharacterCodingException ();
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public static string Decode (this Encoding e, ByteBuffer buffer)
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return e.Decode (buffer.Array (), buffer.ArrayOffset () + buffer.Position (), buffer.Limit () - buffer.Position ());
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public static ByteBuffer Encode (this Encoding e, CharSequence str)
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return ByteBuffer.Wrap (e.GetBytes (str.ToString ()));
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public static ByteBuffer Encode (this Encoding e, string str)
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return ByteBuffer.Wrap (e.GetBytes (str));
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public static Encoding GetEncoding (string name)
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// Encoding e = Encoding.GetEncoding (name, EncoderFallback.ExceptionFallback, DecoderFallback.ExceptionFallback);
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Encoding e = Encoding.GetEncoding (name.Replace ('_','-'));
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if (e is UTF8Encoding)
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return new UTF8Encoding (false, true);
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public static ICollection<KeyValuePair<T, U>> EntrySet<T, U> (this IDictionary<T, U> s)
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public static void Finish (this Inflater i)
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public static bool AddItem<T> (this IList<T> list, T item)
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public static bool AddItem<T> (this ICollection<T> list, T item)
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public static U Get<T, U> (this IDictionary<T, U> d, T key)
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d.TryGetValue (key, out val);
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public static U Put<T, U> (this IDictionary<T, U> d, T key, U value)
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d.TryGetValue (key, out old);
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public static void PutAll<T, U> (this IDictionary<T, U> d, IDictionary<T, U> values)
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foreach (KeyValuePair<T,U> val in values)
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d[val.Key] = val.Value;
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public static object Put (this Hashtable d, object key, object value)
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object old = d [key];
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public static string Put (this StringDictionary d, string key, string value)
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string old = d [key];
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public static CultureInfo GetEnglishCulture ()
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return CultureInfo.GetCultureInfo ("en-US");
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public static T GetFirst<T> (this IList<T> list)
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return ((list.Count == 0) ? default(T) : list[0]);
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public static CultureInfo GetGermanCulture ()
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CultureInfo r = CultureInfo.GetCultureInfo ("de-DE");
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public static T GetLast<T> (this IList<T> list)
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return ((list.Count == 0) ? default(T) : list[list.Count - 1]);
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public static int GetOffset (this TimeZoneInfo tzone, long date)
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return (int)tzone.GetUtcOffset (MillisToDateTimeOffset (date, 0).DateTime).TotalMilliseconds;
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public static InputStream GetResourceAsStream (this Type type, string name)
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string str2 = type.Assembly.GetName ().Name;
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string[] textArray1 = new string[] { str2, ".resources.", type.Namespace, ".", name };
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string str = string.Concat (textArray1);
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Stream manifestResourceStream = type.Assembly.GetManifestResourceStream (str);
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if (manifestResourceStream == null) {
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return InputStream.Wrap (manifestResourceStream);
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public static long GetTime (this DateTime dateTime)
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return new DateTimeOffset (DateTime.SpecifyKind (dateTime, DateTimeKind.Utc), TimeSpan.Zero).ToMillisecondsSinceEpoch ();
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public static TimeZoneInfo GetTimeZone (string tzone)
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TimeZoneInfo tz = TimeZoneInfo.FindSystemTimeZoneById (tzone);
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char[] separator = new char[] { ':' };
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string[] strArray = tzone.Substring (4).Split (separator);
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if (strArray.Length == 1 && strArray[0].Length > 2) {
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hours = int.Parse (strArray[0].Substring (0, 2));
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minutes = int.Parse (strArray[0].Substring (2));
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hours = int.Parse (strArray[0]);
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minutes = (strArray.Length <= 1) ? 0 : int.Parse (strArray[1]);
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TimeSpan t = new TimeSpan (0, hours, minutes, 0, 0);
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return TimeZoneInfo.CreateCustomTimeZone (tzone, t, tzone, tzone);
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public static void InitCause (this Exception ex, Exception cause)
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Console.WriteLine (cause);
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public static bool IsEmpty<T> (this ICollection<T> col)
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return (col.Count == 0);
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public static bool IsEmpty<T> (this Stack<T> col)
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return (col.Count == 0);
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public static bool IsLower (this char c)
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return char.IsLower (c);
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public static bool IsUpper (this char c)
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return char.IsUpper (c);
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public static Sharpen.Iterator<T> Iterator<T> (this ICollection<T> col)
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return new EnumeratorWrapper<T> (col, col.GetEnumerator ());
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public static Sharpen.Iterator<T> Iterator<T> (this IEnumerable<T> col)
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return new EnumeratorWrapper<T> (col, col.GetEnumerator ());
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public static T Last<T> (this ICollection<T> col)
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IList<T> list = col as IList<T>;
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return list[list.Count - 1];
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return col.Last<T> ();
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public static ListIterator<T> ListIterator<T> (this IList<T> col, int n)
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return new ListIterator<T> (col, n);
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public static int LowestOneBit (int val)
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return (((int)1) << NumberOfTrailingZeros (val));
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public static bool Matches (this string str, string regex)
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Regex regex2 = new Regex (regex);
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return regex2.IsMatch (str);
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public static DateTime CreateDate (long milliSecondsSinceEpoch)
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long num = EPOCH_TICKS + (milliSecondsSinceEpoch * 10000);
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return new DateTime (num);
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public static DateTimeOffset MillisToDateTimeOffset (long milliSecondsSinceEpoch, long offsetMinutes)
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TimeSpan offset = TimeSpan.FromMinutes ((double)offsetMinutes);
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long num = EPOCH_TICKS + (milliSecondsSinceEpoch * 10000);
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return new DateTimeOffset (num + offset.Ticks, offset);
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public static CharsetDecoder NewDecoder (this Encoding enc)
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return new CharsetDecoder (enc);
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public static CharsetEncoder NewEncoder (this Encoding enc)
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return new CharsetEncoder (enc);
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public static int NumberOfLeadingZeros (int val)
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uint num = (uint)val;
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while ((num & 0x80000000) == 0) {
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public static int NumberOfTrailingZeros (int val)
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uint num = (uint)val;
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while ((num & 1) == 0) {
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public static int Read (this StreamReader reader, char[] data)
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return reader.Read (data, 0, data.Length);
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public static T Remove<T> (this IList<T> list, T item)
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int index = list.IndexOf (item);
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T local = list[index];
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list.RemoveAt (index);
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public static T Remove<T> (this IList<T> list, int i)
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} catch (IndexOutOfRangeException) {
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throw new NoSuchElementException ();
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public static T RemoveFirst<T> (this IList<T> list)
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return list.Remove<T> (0);
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public static string ReplaceAll (this string str, string regex, string replacement)
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Regex rgx = new Regex (regex);
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if (replacement.IndexOfAny (new char[] { '\\','$' }) != -1) {
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// Back references not yet supported
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StringBuilder sb = new StringBuilder ();
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for (int n=0; n<replacement.Length; n++) {
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char c = replacement [n];
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throw new NotSupportedException ("Back references not supported");
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c = replacement [++n];
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replacement = sb.ToString ();
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return rgx.Replace (str, replacement);
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public static bool RegionMatches (this string str, bool ignoreCase, int toOffset, string other, int ooffset, int len)
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if (toOffset < 0 || ooffset < 0 || toOffset + len > str.Length || ooffset + len > other.Length)
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return string.Compare (str, toOffset, other, ooffset, len) == 0;
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public static T Set<T> (this IList<T> list, int index, T item)
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public static int Signum (long val)
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public static void RemoveAll<T,U> (this ICollection<T> col, ICollection<U> items) where U:T
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foreach (var u in items)
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public static bool ContainsAll<T,U> (this ICollection<T> col, ICollection<U> items) where U:T
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foreach (var u in items)
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if (!col.Any (n => (object.ReferenceEquals (n, u)) || n.Equals (u)))
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public static bool Contains<T> (this ICollection<T> col, object item)
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return col.Any (n => (object.ReferenceEquals (n, item)) || n.Equals (item));
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public static void Sort<T> (this IList<T> list)
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List<T> sorted = new List<T> (list);
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for (int i = 0; i < list.Count; i++) {
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public static void Sort<T> (this IList<T> list, IComparer<T> comparer)
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List<T> sorted = new List<T> (list);
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sorted.Sort (comparer);
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for (int i = 0; i < list.Count; i++) {
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public static string[] Split (this string str, string regex)
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return str.Split (regex, 0);
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public static string[] Split (this string str, string regex, int limit)
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Regex rgx = new Regex (regex);
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List<string> list = new List<string> ();
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foreach (Match match in rgx.Matches (str)) {
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list.Add (str.Substring (startIndex, match.Index - startIndex));
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startIndex = match.Index + match.Length;
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if (limit > 0 && ++nm == limit)
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if (startIndex < str.Length) {
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list.Add (str.Substring (startIndex));
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int count = list.Count - 1;
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while ((count >= 0) && (list[count].Length == 0)) {
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list.RemoveRange (count + 1, (list.Count - count) - 1);
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return list.ToArray ();
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public static IList<T> SubList<T> (this IList<T> list, int start, int len)
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List<T> sublist = new List<T> (len);
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for (int i = start; i < (start + len); i++) {
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sublist.Add (list[i]);
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public static char[] ToCharArray (this string str)
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char[] destination = new char[str.Length];
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str.CopyTo (0, destination, 0, str.Length);
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public static long ToMillisecondsSinceEpoch (this DateTime dateTime)
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if (dateTime.Kind != DateTimeKind.Utc) {
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throw new ArgumentException ("dateTime is expected to be expressed as a UTC DateTime", "dateTime");
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return new DateTimeOffset (DateTime.SpecifyKind (dateTime, DateTimeKind.Utc), TimeSpan.Zero).ToMillisecondsSinceEpoch ();
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public static long ToMillisecondsSinceEpoch (this DateTimeOffset dateTimeOffset)
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return (((dateTimeOffset.Ticks - dateTimeOffset.Offset.Ticks) - EPOCH_TICKS) / TimeSpan.TicksPerMillisecond);
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public static string ToOctalString (int val)
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return Convert.ToString (val, 8);
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public static string ToString (object val)
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return val.ToString ();
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public static string ToString (int val, int bas)
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return Convert.ToString (val, bas);
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public static IList<U> UpcastTo<T, U> (this IList<T> s) where T : U
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List<U> list = new List<U> (s.Count);
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for (int i = 0; i < s.Count; i++) {
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public static ICollection<U> UpcastTo<T, U> (this ICollection<T> s) where T : U
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List<U> list = new List<U> (s.Count);
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foreach (var v in s) {
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public static T ValueOf<T> (T val)
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public static int GetTotalInFixed (this Inflater inf)
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return inf.TotalIn + 4;
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public static int GetRemainingInputFixed (this Inflater inf)
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if (inf.RemainingInput >= 4)
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return inf.RemainingInput - 4;
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public static string GetTestName (object obj)
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return GetTestName ();
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public static string GetTestName ()
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met = new StackFrame (n).GetMethod ();
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foreach (Attribute at in met.GetCustomAttributes (true)) {
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if (at.GetType().FullName == "NUnit.Framework.TestAttribute") {
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// Convert back to camel case
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string name = met.Name;
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if (char.IsUpper (name[0]))
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name = char.ToLower (name[0]) + name.Substring (1);
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} while (met != null);
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public static string GetHostAddress (this IPAddress addr)
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return addr.ToString ();
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public static IPAddress GetAddressByName (string name)
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if (name == "0.0.0.0")
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return IPAddress.Any;
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return Dns.GetHostAddresses (name).FirstOrDefault ();
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public static string GetImplementationVersion (this System.Reflection.Assembly asm)
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return asm.GetName ().Version.ToString ();
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public static string GetHost (this Uri uri)
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return string.IsNullOrEmpty (uri.Host) ? null : uri.Host;
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public static string GetUserInfo (this Uri uri)
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return string.IsNullOrEmpty (uri.UserInfo) ? null : uri.UserInfo;
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public static string GetQuery (this Uri uri)
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return string.IsNullOrEmpty (uri.Query) ? null : uri.Query;
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public static HttpURLConnection OpenConnection (this Uri uri, Proxy p)
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return new HttpsURLConnection (uri, p);
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public static Uri ToURI (this Uri uri)
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public static Uri ToURL (this Uri uri)
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public static InputStream GetInputStream (this Socket socket)
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return new System.Net.Sockets.NetworkStream (socket);
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public static OutputStream GetOutputStream (this Socket socket)
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return new System.Net.Sockets.NetworkStream (socket);
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public static int GetLocalPort (this Socket socket)
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return ((IPEndPoint)socket.LocalEndPoint).Port;
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public static int GetPort (this Socket socket)
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return ((IPEndPoint)socket.RemoteEndPoint).Port;
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public static IPAddress GetInetAddress (this Socket socket)
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return ((IPEndPoint)socket.RemoteEndPoint).Address;
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public static void Bind2 (this Socket socket, EndPoint ep)
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socket.Bind (new IPEndPoint (IPAddress.Any, 0));
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public static void Connect (this Socket socket, EndPoint ep, int timeout)
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IAsyncResult res = socket.BeginConnect (ep,null, null);
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if (!res.AsyncWaitHandle.WaitOne (timeout > 0 ? timeout : Timeout.Infinite, true))
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throw new IOException ("Connection timeout");
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} catch (SocketException se) {
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throw new IOException (se.Message);
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public static Socket CreateServerSocket (int port, int backlog, IPAddress addr)
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Socket s = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
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s.Bind (new IPEndPoint (addr, port));
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public static Socket CreateSocket (string host, int port)
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Socket s = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
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s.Connect (host, port);
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public static Socket CreateSocket ()
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return new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
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public static bool RemoveElement (this ArrayList list, object elem)
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int i = list.IndexOf (elem);
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public static System.Threading.Semaphore CreateSemaphore (int count)
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return new System.Threading.Semaphore (count, int.MaxValue);
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public static void SetCommand (this ProcessStartInfo si, IList<string> args)
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si.FileName = args[0];
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si.Arguments = string.Join (" ", args.Skip (1).Select (a => "\"" + a + "\"").ToArray ());
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public static SystemProcess Start (this ProcessStartInfo si)
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si.UseShellExecute = false;
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si.RedirectStandardInput = true;
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si.RedirectStandardError = true;
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si.RedirectStandardOutput = true;
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si.CreateNoWindow = true;
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return SystemProcess.Start (si);
added
removed
contrib/Sharpen/Sharpen/Extensions.cs
