public static TerminalSequence ConsumeNextSequence(XTermInputBuffer stream)
{
stream.PushState();
var next = stream.Read();
TerminalSequence sequence = null;
switch (next)
{
case '\u001b': // ESC
sequence = ConsumeEscapeSequence(stream);
break;
case '\u008f': // SS3
sequence = ConsumeSS3Sequence(stream);
break;
default:
break;
}
if (sequence == null)
{
sequence = new CharacterSequence
{
Character = next
};
stream.Commit();
}
return(sequence);
}
public static void ProcessSequence(TerminalSequence sequence, IVirtualTerminalController controller)
{
if (sequence is CharacterSequence)
{
var handler = Handlers.Where(x => x.SequenceType == SequenceHandler.ESequenceType.Character).SingleOrDefault();
if (handler == null)
{
throw new Exception("There are no sequence handlers configured for type CharacterSequence");
}
handler.Handler(sequence, controller);
return;
}
if (sequence is CsiSequence)
{
var handler = Handlers
.Where(x =>
x.SequenceType == SequenceHandler.ESequenceType.CSI &&
x.CsiCommand == sequence.Command &&
x.Query == sequence.IsQuery &&
x.Send == sequence.IsSend &&
x.Bang == sequence.IsBang &&
(
x.Param0.Length == 0 ||
x.Param0.Contains(
(sequence.Parameters == null || sequence.Parameters.Count < 1) ?
0 :
sequence.Parameters[0]
)
) &&
(
x.ExactParameterCount == -1 ||
(sequence.Parameters != null || x.ExactParameterCount == sequence.Parameters.Count)
) &&
(
x.ExactParameterCountOrDefault == -1 ||
(
sequence.Parameters == null ||
sequence.Parameters.Count == 0 ||
x.ExactParameterCountOrDefault == sequence.Parameters.Count
)
)
)
.SingleOrDefault();
if (handler == null)
{
throw new Exception("There are no CsiSequence handlers configured for sequence: " + sequence.ToString());
}
handler.Handler(sequence, controller);
return;
}
if (sequence is OscSequence)
{
if (sequence.Parameters.Count < 1)
{
throw new Exception("OSC sequence doesn't have any parameters");
}
var handler = Handlers.Where(x => x.SequenceType == SequenceHandler.ESequenceType.OSC && x.Param0.Contains(sequence.Parameters[0])).SingleOrDefault();
if (handler == null)
{
throw new Exception("There are no sequence handlers configured for type OscSequence with param0 = " + sequence.Parameters[0].ToString());
}
handler.Handler(sequence, controller);
return;
}
if (sequence is CharacterSetSequence)
{
var handler = Handlers.Where(x => x.SequenceType == SequenceHandler.ESequenceType.CharacterSet).SingleOrDefault();
if (handler == null)
{
throw new EscapeSequenceException("There are no sequence handlers configured for type CharacterSetSequence " + sequence.ToString(), sequence);
}
handler.Handler(sequence, controller);
return;
}
if (sequence is EscapeSequence)
{
var handler = Handlers
.Where(x =>
x.SequenceType == SequenceHandler.ESequenceType.Escape &&
x.CsiCommand == sequence.Command
)
.SingleOrDefault();
if (handler == null)
{
throw new EscapeSequenceException("There are no sequence handlers configured for type EscapeSequence " + sequence.ToString(), sequence);
}
handler.Handler(sequence, controller);
return;
}
if (sequence is CharacterSizeSequence)
{
var handler = Handlers.Where(x => x.SequenceType == SequenceHandler.ESequenceType.CharacterSize).SingleOrDefault();
if (handler == null)
{
throw new EscapeSequenceException("There are no sequence handlers configured for type CharacterSizeSequence " + sequence.ToString(), sequence);
}
handler.Handler(sequence, controller);
return;
}
if (sequence is UnicodeSequence)
{
var handler = Handlers
.Where(x =>
x.SequenceType == SequenceHandler.ESequenceType.Unicode &&
x.CsiCommand == sequence.Command
)
.SingleOrDefault();
if (handler == null)
{
throw new EscapeSequenceException("There are no sequence handlers configured for type UnicodeSequence " + sequence.ToString(), sequence);
}
handler.Handler(sequence, controller);
return;
}
System.Diagnostics.Debug.WriteLine("Unhandled sequence -> " + sequence.ToString());
}