Parser fixes, phone

Do not consume possible leading digits of the SERIAL as CHKS.

Parse additional field MESSAGE, for battery status.

Test if PHONE is printable, else print ***.  After restart of the
tracker, it will continue sending data, but with noninitialized PHONE
field.

Makefile

@@ -1,16 +1,18 @@
 
 FILES=tk102-1
 
+TIMELIMIT=
+
 all: $(patsubst %, %.gpx, $(FILES))
 
 %.gpx: %.log
-	./tk102gpx.py $< > $@
+	./tk102gpx.py $(TIMELIMIT) $< > $@
 
 nc%: tk102-%.log
 	(while true; do nc -lp 1020$* -w 999; done) | tee -a $< | cat -v
 
 tail%: tk102-%.log
-	./tk102gpx.py -t1w -CFf $< | tee tk102-$*.txt
+	./tk102gpx.py $(TIMELIMIT) -CFf $< | tee tk102-$*.txt
 
 %.txt: %.log
 	./tk102gpx.py -CF $< > $@

cron.sh

@@ -1,3 +1,3 @@
 #! /bin/bash
 
-make -C /home/ncrs1/stephan/tk102gpx tk102-1.gpx tk102-1.png 
+make -C /home/ncrs1/stephan/tk102gpx TIMELIMIT=-t1d tk102-1.gpx tk102-1.png tk102-2.gpx tk102-2.png 

tk102gpx.py

@@ -57,15 +57,15 @@ for o,v in options:
             print(f"--serial={serial}", file=sys.stderr)
 
 tk_re = re.compile(b"".join((
-    b"(?P<SERIAL>[0-9]+)?,",
+    b"(?P<SERIAL>23[0-9]+)?,",
-    b"(?P<PHONE>\+?[0-9]+)?,",
+    b"(?P<PHONE>\+?[^,]+)?,",
     b"GPRMC,",
     b"(?P<TIME>[0-9]{6}(\.[0-9]+)?)?,",
     b"(?P<AV>[AV])?,",
     b"(?P<LAT>[0-9]+\.[0-9]+)?,",
-    b"(?P<NS>[NS])?,",
+    b"(?P<NS>[NS]),",
     b"(?P<LON>[0-9]+\.[0-9]+)?,",
-    b"(?P<EW>[EW])?,",
+    b"(?P<EW>[EW]),",
     b"(?P<SOG>[0-9]+\.[0-9]+)?,",
     b"(?P<COG>[0-9]+\.[0-9]+)?,",
     b"(?P<DATE>[0-9]{6})?,",
@@ -73,9 +73,10 @@ tk_re = re.compile(b"".join((
     b"(?P<WHAT>[^,]*,)?",
     b"A\*(?P<GPCKS>[0-9A-F][0-9A-F]),",
     b"(?P<SIGNAL>[FL])?,",
+    b"(?P<MESSAGE>[^,]+,)?",
     b"imei:(?P<IMEI>[0-9]+),",
     b"(?P<LEN>[0-9]{3})",
-    b"(?P<BCKS>..)"
+    b"(?P<BCKS>2[^23]|[^2][^2])?"
 )), flags=re.DOTALL)
 
 def gprmc2deg(d,dd):
@@ -154,6 +155,9 @@ class TKGPX(gpxpy.gpx.GPX):
             if verbose>0 and rd["SIGNAL"] != b"F":
                 print(f"Signal is {repr(rd['SIGNAL'])} at {rd['SERIAL']}", file=sys.stderr)
 
+            if verbose>0 and rd["MESSAGE"]:
+                print(f"MESAAGE is {repr(rd['MESSAGE'])} at {rd['SERIAL']}", file=sys.stderr)
+
             pd = {
                 "latitude": gprmc2deg(rd["LAT"], rd["NS"]),
                 "longitude": gprmc2deg(rd["LON"], rd["EW"]),
@@ -185,12 +189,17 @@ class TKGPX(gpxpy.gpx.GPX):
                 cd = {}
                 cd.update(strorbytes(rd, 'SIGNAL'))
                 cd.update(strorbytes(rd, 'SERIAL'))
-                cd.update(strorbytes(rd, 'PHONE'))
+                if rd['PHONE'].isascii():
+                    cd.update(strorbytes(rd, 'PHONE'))
+                else:
+                    cd['PHONE'] = "*"*14
                 cd['time'] = pd['time'].isoformat()[:19]+'Z'
                 cd['lat'] = f"{rd['LAT'][:2].decode()}°{rd['LAT'][2:].decode()}'{rd['NS'].decode()}"   
                 cd['lon'] = f"{rd['LON'][:3].decode()}°{rd['LAT'][3:].decode()}'{rd['EW'].decode()}"   
                 cd.update(strorbytes(rd, 'SOG'))
                 cd.update(strorbytes(rd, 'COG'))
+                if rd['MESSAGE']:
+                    cd.update(strorbytes(rd, 'MESSAGE'))
                 if fieldnames:
                     print(", ".join([f"{k}={cd[k]}" for k in cd]))
                 else: