private void ReadFromConsole_Backspace(ConsoleKey key, ConsoleInputState state)
{
if (state.Cursor > 0)
{
state.Txt.Remove(state.Cursor - 1, 1);
state.Cursor--;
}
else if (state.Cursor == 0)
{
return;
}
var l = state.Txt.Length - state.Cursor;
if (l > 0)
{
Write("".PadLeft(l, ' '), ConsoleOutputStyle.Input);
SetCursorPosition(state.StartX + state.Cursor, state.StartY);
Write(state.Txt.ToString().Substring(state.Cursor), ConsoleOutputStyle.Input);
SetCursorPosition(state.StartX + state.Cursor, state.StartY);
}
else
{
Write("\b \b", ConsoleOutputStyle.Input);
}
}
private void ReadFromConsole_UpDown(ConsoleKey key, ConsoleInputState state)
{
var strH = "";
if (_history.Count > 0)
{
state.HistoryIndex = state.HistoryIndex + (key == ConsoleKey.DownArrow || key == ConsoleKey.PageDown ? 1 : -1);
if (state.HistoryIndex < 0)
{
state.HistoryIndex = _history.Count - 1;
}
else if (state.HistoryIndex > _history.Count - 1)
{
state.HistoryIndex = 0;
}
strH = _history[state.HistoryIndex];
state.Txt.Clear();
state.Txt.Append(strH);
state.Cursor = state.Txt.Length;
}
CleanFromThisPoint(state.StartX, state.StartY);
Write(strH, ConsoleOutputStyle.Input);
}
private void ReadFromConsole_Insert(ConsoleKey key, ConsoleInputState state)
{
state.InsertMode = !state.InsertMode;
if (IsWindows)
{
Console.CursorSize = !state.InsertMode ? 100 : 25;
}
}
private void ReadFromConsole_LeftRight(ConsoleKey key, ConsoleInputState state)
{
if (key == ConsoleKey.LeftArrow)
{
state.Cursor = Math.Max(0, state.Cursor - 1);
}
else
{
state.Cursor = Math.Min(state.Txt.Length, state.Cursor + 1);
}
SetCursorPosition(state.StartX + state.Cursor, state.StartY);
}
private void ReadFromConsole_HomeEnd(ConsoleKey key, ConsoleInputState state)
{
if (key != ConsoleKey.End)
{
state.Cursor = 0;
}
else
{
state.Cursor = state.Txt.Length;
}
SetCursorPosition(state.StartX + state.Cursor, state.StartY);
}
private void ReadFromConsole_Delete(ConsoleKey key, ConsoleInputState state)
{
if (state.Cursor >= state.Txt.Length)
{
return;
}
state.Txt.Remove(state.Cursor, 1);
if (state.Txt.Length - state.Cursor != 0)
{
SetCursorPosition(state.StartX + state.Cursor, state.StartY);
Write(state.Txt.ToString().Substring(state.Cursor) + " \b", ConsoleOutputStyle.Input);
SetCursorPosition(state.StartX + state.Cursor, state.StartY);
}
else
{
Write(" \b", ConsoleOutputStyle.Input);
}
}
private void ReadFromConsole_Default(ConsoleKeyInfo key, ConsoleInputState state)
{
state.Txt.Insert(state.Cursor, key.KeyChar);
state.Cursor++;
if (!state.InsertMode)
{
Write(key.KeyChar.ToString(), ConsoleOutputStyle.Input);
if (state.Cursor < state.Txt.Length)
{
state.Txt.Remove(state.Cursor, 1);
}
}
else
{
Write(state.Txt.ToString().Substring(state.Cursor - 1), ConsoleOutputStyle.Input);
if (state.Cursor != state.Txt.Length)
{
SetCursorPosition(state.StartX + state.Cursor, state.StartY);
}
}
}
private void ReadFromConsole_Enter(ConsoleKey key, ConsoleInputState state)
{
WriteLine("", ConsoleOutputStyle.Input);
}
private void ReadFromConsole_Tab(ConsoleKey key, ConsoleInputState state)
{
var cmdArgs = new List <CommandToken>(state.Txt.ToString().SplitCommandLine()).ToArray();
var matches = SearchCommands(cmdArgs, state.Autocomplete);
if (matches == null || matches.Length <= 0)
{
return;
}
string[] allowed;
var isArgument = matches.Length == 1 && matches[0].IsExact;
// Search match
var argInjectionPoint = -1;
var argInjectonPointLength = -1;
if (isArgument)
{
var parIndex = 0;
var selectedToken = cmdArgs.Where(u => u.IsInside(state.Cursor)).FirstOrDefault();
if (selectedToken != null)
{
parIndex = Array.IndexOf(cmdArgs, selectedToken) - matches[0].ParameterStartIndex;
argInjectionPoint = selectedToken.StartIndex;
argInjectonPointLength = selectedToken.RealLength;
if (selectedToken.Quoted)
{
argInjectionPoint++;
argInjectonPointLength -= 2;
}
}
else
{
parIndex = -1;
argInjectionPoint = state.Txt.Length;
argInjectonPointLength = 0;
}
var parameter = GetParameterCandidate(matches[0].Methods, parIndex);
allowed = state.Autocomplete.GetParameterValues(parameter, selectedToken?.Value)?.ToArray();
// If any option have one space ...
if (allowed != null && selectedToken != null && !selectedToken.Quoted && allowed.Any(u => u.Contains(" ")))
{
// Check if we need to append the quotes (c:\\Program files)
state.Txt.Insert(selectedToken.StartIndex + selectedToken.RealLength, "\"");
state.Txt.Insert(selectedToken.StartIndex, "\"");
argInjectionPoint++;
}
}
else
{
allowed = matches.Select(u => u.Method).ToArray();
}
var maxCommonLength = ComputeMaxString(allowed, out var cmd);
if (string.IsNullOrEmpty(cmd))
{
return;
}
// Take coincidences
if (isArgument)
{
state.Txt.Remove(argInjectionPoint, argInjectonPointLength);
state.Txt.Insert(argInjectionPoint, cmd.Substring(0, maxCommonLength));
state.Cursor = argInjectionPoint + maxCommonLength;
}
else
{
// Is method
state.Txt.Clear();
state.Txt.Append(cmd.Substring(0, maxCommonLength));
if (allowed.Length == 1)
{
state.Txt.Append(' ');
}
state.Cursor = state.Txt.Length;
}
// Print found
OutFoundStrs(allowed, maxCommonLength);
// Prompt
WritePrompt();
state.GetCursorPosition();
Write(state.Txt.ToString(), ConsoleOutputStyle.Input);
SetCursorPosition(state.StartX + state.Cursor, state.StartY);
}
/// <inheritdoc />
public string ReadFromConsole(IAutoCompleteHandler autocomplete = null)
{
State = ConsoleReaderState.Reading;
// Write prompt
WritePrompt();
// If have something loaded
if (TryReadManualInput(out var manual))
{
State = ConsoleReaderState.ReadingDirty;
// Print it
WriteLine(manual, ConsoleOutputStyle.Input);
// Use it
State = ConsoleReaderState.None;
return(manual);
}
// Read from console
var state = new ConsoleInputState(this)
{
Autocomplete = autocomplete
};
if (IsWindows)
{
// In Mac don't work
Console.CursorSize = !state.InsertMode ? 100 : 25;
}
ConsoleKeyInfo i;
do
{
i = Console.ReadKey(true);
if (_keyHandle.TryGetValue(i.Key, out var action))
{
action(i.Key, state);
}
else
{
ReadFromConsole_Default(i, state);
}
State = state.Txt.Length > 0 ? ConsoleReaderState.ReadingDirty : ConsoleReaderState.Reading;
}while (i.Key != ConsoleKey.Enter);
// Process return
var ret = state.Txt.ToString();
// Append to history
if (_history.LastOrDefault() != ret)
{
if (_history.Count > MaxHistorySize)
{
_history.RemoveAt(0);
}
_history.Add(ret);
}
// return text
State = ConsoleReaderState.None;
return(ret);
}
