public string ReadLine()
{
int left, top;
while (true)
{
left = Console.CursorLeft;
top = Console.CursorTop;
ConsoleKeyInfo keyInfo = Console.ReadKey(true);
if (keyInfo.KeyChar == '\0')
{
continue;
}
if (keyInfo.Key == ConsoleKey.Tab)
{
}
else if (keyInfo.Key == ConsoleKey.Backspace)
{
left--;
if (left < 0)
{
top--;
left = Console.BufferWidth - 1;
}
if (top >= 0 && textBuffer.Length > 0)
{
textBuffer.Remove(textBuffer.Length - 1, 1);
Console.SetCursorPosition(left, top);
Console.Write(' ');
Console.SetCursorPosition(left, top);
outputMachine.SetState(stateStack.Pop());
}
}
else if (keyInfo.Key == ConsoleKey.Enter)
{
Console.WriteLine();
break;
}
else if (CharCategoryHelper.IsValidInput(keyInfo.KeyChar))
{
Console.Write(keyInfo.KeyChar);
textBuffer.Append(keyInfo.KeyChar);
}
}
string result = textBuffer.ToString();
textBuffer.Clear();
return(result);
}
internal string ReadCommandLine()
{
int left, top;
outputMachine.ClearState();
while (true)
{
left = Console.CursorLeft;
top = Console.CursorTop;
ConsoleKeyInfo keyInfo = Console.ReadKey(true);
if (keyInfo.Key == ConsoleKey.Tab)
{
}
else if (keyInfo.Key == ConsoleKey.Backspace)
{
RemoveChar(ref left, ref top, ref position);
lastInputCache = null;
}
else if (keyInfo.Key == ConsoleKey.Enter)
{
Console.WriteLine();
break;
}
else if (keyInfo.Key == ConsoleKey.UpArrow)
{
string command = historyProvider.NextHistory();
if (command != null)
{
if (lastInputCache == null)
{
lastInputCache = textBuffer.ToString();
lastPosition = position;
}
int length = textBuffer.Length;
MoveToEnd(ref left, ref top);
while (length > 0)
{
RemoveChar(ref left, ref top, ref position);
length--;
}
outputMachine.ClearState();
position = 0;
foreach (char commandChar in command)
{
if (OutputConsole(commandChar))
{
textBuffer.Append(commandChar);
position++;
}
}
}
}
else if (keyInfo.Key == ConsoleKey.DownArrow)
{
string command = historyProvider.PreviousHistory();
if (command != null)
{
if (lastInputCache == null)
{
lastInputCache = textBuffer.ToString();
lastPosition = position;
}
int length = textBuffer.Length;
MoveToEnd(ref left, ref top);
while (length > 0)
{
RemoveChar(ref left, ref top, ref position);
length--;
}
outputMachine.ClearState();
position = 0;
foreach (char commandChar in command)
{
if (OutputConsole(commandChar))
{
textBuffer.Append(commandChar);
position++;
}
}
}
else
{
command = lastInputCache;
if (command != null)
{
int length = textBuffer.Length;
MoveToEnd(ref left, ref top);
while (length > 0)
{
RemoveChar(ref left, ref top, ref position);
length--;
}
outputMachine.ClearState();
position = 0;
int setleft = 0;
int settop = 0;
foreach (char commandChar in command)
{
if (OutputConsole(commandChar))
{
textBuffer.Append(commandChar);
if (position == lastPosition)
{
setleft = Console.CursorLeft;
settop = Console.CursorTop;
}
position++;
}
}
if (position == lastPosition)
{
setleft = Console.CursorLeft;
settop = Console.CursorTop;
}
Console.SetCursorPosition(setleft, settop);
}
}
}
else if (keyInfo.Key == ConsoleKey.LeftArrow)
{
if (position <= 0)
{
continue;
}
left--;
if (left < 0)
{
top--;
left = Console.BufferWidth - 1;
}
Console.SetCursorPosition(left, top);
position--;
}
else if (keyInfo.Key == ConsoleKey.RightArrow)
{
if (position >= textBuffer.Length)
{
continue;
}
left++;
if (left >= Console.BufferWidth)
{
top++;
left = 0;
}
Console.SetCursorPosition(left, top);
position++;
}
else if (keyInfo.Key == ConsoleKey.Delete)
{
RemoveNextChar(ref left, ref top, ref position);
lastInputCache = null;
}
else if (keyInfo.Key == ConsoleKey.Home)
{
MoveToHome(ref left, ref top);
}
else if (keyInfo.Key == ConsoleKey.End)
{
MoveToEnd(ref left, ref top);
}
else if (keyInfo.KeyChar == '\0')
{
continue;
}
else if (CharCategoryHelper.IsValidInput(keyInfo.KeyChar))
{
int stackSize = stateStack.Count;
int current = stackSize;
while (current > position)
{
outputMachine.SetState(stateStack.Pop());
current--;
}
if (OutputConsole(keyInfo.KeyChar))
{
current = stackSize - 1;
while (current >= position)
{
postStack.Push(textBuffer[current]);
current--;
}
if (postStack.Count > 0)
{
textBuffer.Remove(position, stackSize - position);
}
int currentLeft = Console.CursorLeft;
int currentTop = Console.CursorTop;
textBuffer.Append(keyInfo.KeyChar);
position++;
lastInputCache = null;
int len = postStack.Count;
char ch;
int emptyCount = 0;
while (len > 0)
{
ch = postStack.Pop();
if (OutputConsole(ch))
{
textBuffer.Append(ch);
}
else
{
emptyCount++;
}
len--;
}
while (emptyCount > 0)
{
Console.Write(' ');
emptyCount--;
}
Console.SetCursorPosition(currentLeft, currentTop);
}
}
}
string result = textBuffer.ToString();
textBuffer.Clear();
position = 0;
lastPosition = 0;
lastInputCache = null;
stateStack.Clear();
return(result);
}