public double ReadDouble(Predicate <double> valueCorrectnessPredicate = null)
{
double result;
_calcIO.Write("> ");
string input;
while (!double.TryParse(input = _calcIO.ReadString(), out result) || !(valueCorrectnessPredicate?.Invoke(result) ?? true))
{
_calcIO.Write("Wrong input. Try again.\n> ");
}
return(result);
}
public void Start()
{
calcIO.WriteLine(
"Usage:\n" +
" when first symbol on line is ‘>’ – enter operand(number)\n" +
" when first symbol on line is ‘@’ – enter operation\n");
RunMathOperation(mathOperations['=']);
bool running = true;
while (running)
{
string input;
do
{
calcIO.Write("@: ");
input = calcIO.ReadString().Trim();
} while (input.Length > 1 || string.IsNullOrWhiteSpace(input));
if (mathOperations.TryGetValue(input[0], out var mathFunc))
{
RunMathOperation(mathFunc);
continue;
}
if (systemOperations.TryGetValue(input[0], out var sysFunc))
{
running = sysFunc();
}
}
}
private static void Main(string[] args)
{
_programRunning = true;
_clientCalcIO = new ConsoleCalcIO();
var ipPoint = new IPEndPoint(IPAddress.Parse(args[0]), int.Parse(args[1]));
var socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
socket.Connect(ipPoint);
}
catch (Exception e)
{
_clientCalcIO.WriteLine($"Can't connect to server {ipPoint}\nError: {e.Message}");
_clientCalcIO.ReadString();
return;
}
_networkCalcIO = new TCPCalcIO(socket, _clientCalcIO);
_readMessagesThread = new Thread(new ThreadStart(ReadServerMessages));
_readMessagesThread.Start();
while (_programRunning)
{
string input = _clientCalcIO.ReadString().ToLower();
if (input == "q")
{
_programRunning = false;
_networkCalcIO.Disconnect();
return;
}
if (_programRunning)
{
_networkCalcIO.Write(input);
}
}
}
public string Read(ICalcIO calcIO)
{
Directory.CreateDirectory(FolderPath);
var stringBuilder = new StringBuilder("List of existing files:\n");
foreach (string file in Directory.GetFiles(FolderPath, "*.txt"))
{
var str = file.Replace(FolderPath, "");
stringBuilder.Append(str.Substring(0, str.LastIndexOf(".txt")));
stringBuilder.Append("\n");
}
calcIO.Write(stringBuilder.Append("Enter name of file:\n").ToString());
var name = calcIO.ReadString();
return(FolderPath + (string.IsNullOrWhiteSpace(name) ? "_" : name) + ".txt");
}
private static void Main(string[] args)
{
_programRunning = true;
_consoleCalcIO = new ConsoleCalcIO();
_clientCalcIO = new List <TCPCalcIO>();
_clientThreads = new List <Thread>();
var ipPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), int.Parse(args[0]));
_listenSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_consoleCalcIO.WriteLine("Server started at port " + args[0]);
_listenSocket.Bind(ipPoint);
_listenSocket.Listen(10);
_connectThread = new Thread(new ThreadStart(ConnectionsThread));
_connectThread.Start();
while (_programRunning)
{
_consoleCalcIO.ReadString();
}
}