add ALN-ENUM

examples/benchmark.py

@@ -19,7 +19,7 @@
 from time import process_time_ns
 
 from pyspartn import SPARTNReader
-from pyspartn import _version as spartnver
+from pyspartn import version as spartnver
 
 KEY = "930d847b779b126863c8b3b2766ae7cc"
 BASEDATE = datetime(2024, 4, 18, 20, 48, 29, 977255)

src/pyspartn/spartnreader.py

@@ -57,6 +57,7 @@
 from pyspartn.socket_stream import SocketStream
 from pyspartn.spartnhelpers import bitsval, naive2aware, timetag2date, valid_crc
 from pyspartn.spartnmessage import SPARTNMessage
+from pyspartn.spartntables import ALN_ENUM
 from pyspartn.spartntypes_core import ERRLOG, ERRRAISE, SPARTN_PREB, VALCRC
 
 
@@ -212,18 +213,7 @@ def _parse_spartn(self, preamble: bytes) -> tuple:
         payload = self._read_bytes(nData)
         embAuth = b""
         if authInd > 1:
-            if embAuthLen == 0:
-                aln = 8
-            elif embAuthLen == 1:
-                aln = 12
-            elif embAuthLen == 2:
-                aln = 16
-            elif embAuthLen == 3:
-                aln = 32
-            elif embAuthLen == 4:
-                aln = 64
-            else:
-                aln = 0
+            aln = ALN_ENUM.get(embAuthLen, 0)
             embAuth = self._read_bytes(aln)
         crcb = self._read_bytes(crcType + 1)
         crc = int.from_bytes(crcb, "big")

src/pyspartn/spartntables.py

@@ -156,6 +156,8 @@
     ),
 }
 
+ALN_ENUM = {0: 8, 1: 12, 2: 16, 3: 32, 4: 64}
+
 SF015_ENUM = SF022_ENUM = {
     0: "0 secs",
     1: "1 secs",