Regex does not support named groups

TinyCLR OS
1

In the following code, using “pattern” is fine whereas “pattern2” throws a RegexpSyntaxException :

var receivedString = "$GPGSV,1,1,11,03,03,111,00,04,15,270,00,06,01,010,00,13,06,292,00*74";

var pattern = "[$]([A-Z]{2})([A-Z]{3}).*[*]([0-9a-f]{2})";
var pattern2 = "[$](?<SignalOrigin>[A-Z]{2})(?<message>[A-Z]{3}).*[*](?<checksum>[0-9a-f]{2})";
Regex validNMEA = new Regex(pattern, RegexOptions.IgnoreCase);
if (validNMEA.IsMatch(receivedString))
  {
    Match m = validNMEA.Match(receivedString);
    Debug.WriteLine($"Signal origin : {m.Groups[1].Value}, message : {m.Groups[2].Value}, checksum : 0x{m.Groups[3].Value}");
  }

That’s not really a big issue but perhaps a list of unsupported features could be useful ?

2

We added regex last minute. The page still needs some love. Contribution to code or docs is very much welcome. Both are open source.