public void Initialize(bool alreadyActive)
{
// Console is always considered active on Unix
ConsoleActive = true;
StdoutRedirected = UnixStreamHelper.isatty(1) != 1;
var duplicateStream = UnixStreamHelper.CreateDuplicateStream(1);
if (UseMonoTtyDriver && !StdoutRedirected)
{
// Mono implementation handles xterm for us
var writer = ConsoleWriter.CreateConsoleStreamWriter(duplicateStream, Console.Out.Encoding, true);
StandardOut = TextWriter.Synchronized(writer);
var driver = AccessTools.Field(AccessTools.TypeByName("System.ConsoleDriver"), "driver").GetValue(null);
AccessTools.Field(AccessTools.TypeByName("System.TermInfoDriver"), "stdout").SetValue(driver, writer);
}
else
{
// Handle TTY ourselves
var writer = new StreamWriter(duplicateStream, Console.Out.Encoding);
writer.AutoFlush = true;
StandardOut = TextWriter.Synchronized(writer);
TtyInfo = TtyHandler.GetTtyInfo();
}
ConsoleOut = StandardOut;
}
public void SetConsoleColor(ConsoleColor color)
{
if (StdoutRedirected)
{
return;
}
if (UseMonoTtyDriver)
{
// Use mono's inbuilt terminfo driver to set the foreground color for us
SafeConsole.ForegroundColor = color;
}
else
{
ConsoleOut.Write(TtyInfo.GetAnsiCode(color));
}
}
public static TtyInfo Parse(byte[] buffer)
{
int intSize;
int magic = GetInt16(buffer, 0);
switch (magic)
{
case 0x11a:
intSize = 2;
break;
case 0x21E:
intSize = 4;
break;
default:
// Unknown ttyinfo format
return(TtyInfo.Default);
}
int boolFieldLength = GetInt16(buffer, 4);
int intFieldLength = GetInt16(buffer, 6);
int strOffsetFieldLength = GetInt16(buffer, 8);
// Normally i'd put a more complete implementation here, but I only need to parse this info to get the max color count
// Feel free to implement the rest of this using these sources:
// https://github.com/mono/mono/blob/master/mcs/class/corlib/System/TermInfoReader.cs
// https://invisible-island.net/ncurses/man/term.5.html
// https://invisible-island.net/ncurses/man/terminfo.5.html
int baseOffset = 12 + GetString(buffer, 12).Length + 1; // Skip the terminal name
baseOffset += boolFieldLength; // Length of bool field section
baseOffset += baseOffset % 2; // Correct for boundary
int colorOffset =
baseOffset
+ (intSize * (int)TermInfoNumbers.MaxColors); // Finally the offset for the max color integer
//int stringOffset = baseOffset + (intSize * intFieldLength);
//int foregoundColorOffset =
// stringOffset
// + (2 * (int)TermInfoStrings.SetAForeground);
//foregoundColorOffset = stringOffset
// + (2 * strOffsetFieldLength)
// + GetInt16(buffer, foregoundColorOffset);
var info = new TtyInfo();
info.MaxColors = GetInteger(intSize, buffer, colorOffset);
//string setForegroundTemplate = GetString(buffer, foregoundColorOffset);
//info.ForegroundColorStrings = ansiColorMapping.Select(x => setForegroundTemplate.Replace("%p1%", x.ToString())).ToArray();
info.ForegroundColorStrings = ansiColorMapping.Select(x => $"\u001B[{(x > 7 ? 82 + x : 30 + x)}m").ToArray();
return(info);
}