private static TerminalSequence ConsumeCompliance(XTermInputBuffer stream)
{
var next = stream.Read();
var compliance = new OscSequence
{
Command = next.ToString()
};
stream.Commit();
//System.Diagnostics.Debug.WriteLine(compliance.ToString());
return(compliance);
}
private static TerminalSequence ConsumeOSC(XTermInputBuffer stream)
{
stream.PushState();
string command = "";
bool readingCommand = false;
bool atStart = true;
bool isQuery = false;
bool isSend = false;
bool isBang = false;
char? modifier = null;
int currentParameter = -1;
List <int> Parameters = new List <int>();
while (!stream.AtEnd)
{
var next = stream.Read();
if (readingCommand)
{
if (next == 0x07 || next == 0x9C) // BEL or ST
{
var osc = new OscSequence
{
Parameters = Parameters,
IsQuery = isQuery,
IsSend = isSend,
IsBang = isBang,
Command = command
};
stream.Commit();
//System.Diagnostics.Debug.WriteLine(osc.ToString());
return(osc);
}
else
{
command += next;
}
}
else
{
if (atStart && next == '?')
{
isQuery = true;
}
else if (atStart && next == '>')
{
isSend = true;
}
else if (atStart && next == '!')
{
isBang = true;
}
else if (next == ';')
{
if (currentParameter == -1)
{
throw new EscapeSequenceException("Invalid position for ';' in OSC", stream.Stacked);
}
Parameters.Add(currentParameter);
currentParameter = -1;
}
else if (char.IsDigit(next))
{
atStart = false;
if (currentParameter == -1)
{
currentParameter = Convert.ToInt32(next - '0');
}
else
{
currentParameter = (currentParameter * 10) + Convert.ToInt32(next - '0');
}
}
else if (next == '$' || next == '"' || next == ' ')
{
if (modifier.HasValue)
{
throw new EscapeSequenceException("There appears to be two modifiers in a row", stream.Stacked);
}
if (currentParameter != -1)
{
Parameters.Add(currentParameter);
currentParameter = -1;
}
modifier = next;
}
else
{
if (currentParameter != -1)
{
Parameters.Add(currentParameter);
currentParameter = -1;
}
command += next;
readingCommand = true;
}
}
}
stream.PopState();
return(null);
}