private void ParserThreadCallback()
{
while (!_tokenSource.Token.IsCancellationRequested)
{
//Check if the MRE has been set
if (!_mre.WaitOne(100))
{
continue;
}
if (!_queue.TryDequeue(out QueueData data))
{
_mre.Reset();
continue;
}
//The vertical bar is a pipe character. inputA | inputB = run command B with the output of command A
string[] inputs = data.Input.Split('|');
if (inputs.Length > 1)
{
//If we have a piped command, send it off to a new thread to be handled,
//As each command needs to be handled in order
Thread pipeThread = new Thread(() => PipeThreadCallback(inputs, data.Callback, data.Context));
pipeThread.Start();
_mre.Set();
continue;
}
string input = data.Input; //We don't lower the data because case sensitivity is an option for command matching
CommandMetadata metadata;
lock (_lock)
{
//Lock the metadata collection, and grab the first metadata that has a matching executor
List <CommandMetadata> metadatas = _metadata.Where(m => m.GetFirstOrDefaultExecutorData(input) != null).ToList();
metadata = metadatas.FirstOrDefault();
}
if (metadata == null)
{
data.Callback?.Invoke(InputResult.Unhandled, null);
//No command matches, so ignore this input
_mre.Set();
continue;
}
CommandExecutorData exeData = metadata.GetFirstOrDefaultExecutorData(input);
RegexString trigger = exeData.ExecutorAttribute.CommandMatcher;
input = trigger.RemoveMatchedString(input).TrimStart();
AbstractParser parser = _registry.GetParser(_registry, input, null, metadata, exeData, data.Context, data.Callback);
try
{
parser.Start();
}
finally
{
//Our job is done, so prepare for the next input
_mre.Set();
}
}
_mre.Dispose();
}
