protected override bool LookForBlock()
{
var opm = new Regex(@"(OP: *01\r?\n)+");
var rm = new Regex(@"[a-fA-F0-9]+\r?\n");
var ds = string.Join("", Data.ToArray());
if (opm.Match(ds).Success)
{
Data.Clear();
return(false);
}
var match = rm.Match(ds);
if (match.Success)
{
var end = @"\r?\n";
var endM = new Regex(end);
var endMatch = endM.Match(match.Value);
var hexString = match.Value.Substring(0, endMatch.Index);
Data.Clear();
LastBlockBytes = AxLEHelper.StringToByteArray(hexString);
return(true);
}
return(false);
}
protected override bool LookForBlock()
{
// Old "OP: 01\r\n", New: "OP: 01, 50, 8\r\n"
var opm = new Regex(@"(OP: *01,? ?\d*,? ?\d*\r?\n)+");
var rm = new Regex(@"[a-fA-F0-9]+\r?\n");
var ds = string.Join("", Data.ToArray());
if (opm.Match(ds).Success)
{
Data.Clear();
return(false);
}
var match = rm.Match(ds);
if (match.Success)
{
var end = @"\r?\n";
var endM = new Regex(end);
var endMatch = endM.Match(match.Value);
var endIndex = endMatch.Index;
var nibbleCount = endIndex;
if ((nibbleCount & 1) != 0)
{
Console.WriteLine($"WARNING: Packet contained odd number of nibbles, ignoring last: {nibbleCount}");
nibbleCount &= ~1;
}
var hexString = match.Value.Substring(0, nibbleCount);
LastBlockBytes = AxLEHelper.StringToByteArray(hexString);
Data.Clear();
// Consume line ending
if (ds[endIndex] == '\r')
{
endIndex++;
}
if (ds[endIndex] == '\n')
{
endIndex++;
}
// Keep any residual characters for next packet
if (endIndex < ds.Length)
{
Data.Add(ds.Substring(endIndex));
}
return(true);
}
return(false);
}
protected override bool LookForEnd()
{
// Check for end
var regex = @"[a-fA-F0-9]*\r?\n";
var rm = new Regex(regex);
var matches = rm.Matches(Data.Last());
if (matches.Count == 0)
{
return(false);
}
// Match entire block and process
var ds = string.Join("", Data.ToArray());
regex = @"[a-fA-F0-9]+\r?\n";
rm = new Regex(regex);
matches = rm.Matches(ds);
if (matches.Count > 0)
{
var match = matches[0].Value;
var end = @"\r?\n";
var endM = new Regex(end);
var endMatch = endM.Matches(match)[0];
var hexString = match.Substring(0, endMatch.Index);
BlockBytes = AxLEHelper.StringToByteArray(hexString);
return(BlockBytes.Length == 512);
}
return(false);
}
