Fix telemetry packet with leading 0

sometimes the analog values in telemetry packets don't contain
a leading zero.  this patch fixes and tests for that.

Author: hemna

aprslib/parsing/telemetry.py

@@ -199,7 +199,8 @@ def parse_telemetry_report(body):
             continue
 
         # Allow integers, decimals, and negative numbers
-        if not re.match(r'^-?\d+\.?\d*$', val_str):
+        # Also allow values starting with decimal point (e.g., .10 = 0.10)
+        if not re.match(r'^-?(\d+\.?\d*|\.\d+)$', val_str):
             raise ParseError("telemetry analog value %d has invalid format" % (i+1))
         try:
             val = float(val_str)

tests/test_parse_telemetry.py

@@ -263,6 +263,17 @@ def test_valid_telemetry_digital_bits_with_non_binary_suffix(self):
         self.assertEqual(result['telemetry']['bits'], '01100101')
         self.assertEqual(result.get('comment', ''), '2')
 
+    def test_valid_telemetry_leading_decimal_analog_value(self):
+        """Test telemetry packet with leading decimal in analog value (e.g., .10 = 0.10)"""
+        packet = "IT9FDP-15>APRTLM,TCPIP*,qAC,T2CZECH:T#720,.10,12.83,12.19,14.0,14.8,00000000"
+        result = parse(packet)
+
+        self.assertEqual(result['format'], 'telemetry')
+        self.assertEqual(result['telemetry']['seq'], 720)
+        # .10 should be parsed as 0.1
+        self.assertEqual(result['telemetry']['vals'], [0.1, 12.83, 12.19, 14.0, 14.8])
+        self.assertEqual(result['telemetry']['bits'], '00000000')
+
     def test_parse_telemetry_report_function_direct(self):
         """Test parse_telemetry_report function directly"""
         body = "#123,456,789,012,345,678,11001010,Test"