MailKit.Net.Imap.ImapClient.EscapeUserName C# (CSharp) Метод

		static string EscapeUserName (string userName)
		{
			StringBuilder escaped;
			int startIndex, index;

			if ((index = userName.IndexOfAny (ReservedUriCharacters)) == -1)
				return userName;

			escaped = new StringBuilder ();
			startIndex = 0;

			do {
				escaped.Append (userName, startIndex, index - startIndex);
				escaped.Append (HexEscape (userName[index++]));
				startIndex = index;

				if (startIndex >= userName.Length)
					break;

				index = userName.IndexOfAny (ReservedUriCharacters, startIndex);
			} while (index != -1);

			if (index == -1)
				escaped.Append (userName, startIndex, userName.Length - startIndex);

			return escaped.ToString ();
		}