[Gpsbabel-misc] Garmin Geko 201 issue too long waypoint names

[Stefan R. <ra...@gm...>]

I just noticed that uploading a .gpx that has waypoints that are longer 
than 6 characters can cause rather subtle issues.
For example, in a snippet like

  <wpt lat="47.6149" lon="10.3354">
    <name><![CDATA[Rettenberg-1]]></name>
    <cmt><![CDATA[Station 1]]></cmt>
  </wpt>
  <wpt lat="47.6157" lon="10.3313">
    <name><![CDATA[Rettenberg-2]]></name>
    <cmt><![CDATA[Station 2]]></cmt>
  </wpt>

the names of the waypoints will be truncated to 6 characters, so both 
'Rettenberg-1' and 'Rettenberg-2' become 'Retten' and hence only a 
single waypoint is stored on the geko. Now I have no idea how common 
this limitation is among the various Garmin devices. And is there a 
chance to detect which model is connected to the machine at all (this 
model is connected via serial port)? Anyway, it would be nice to print a 
warning when uploading waypoints that (a) exceed the limit and (b) hence 
causes name collisions.
Ideally, waypoint names would be truncated in a smart manner 
automatically (like checking which character makes the waypoints unique 
and using that along with the first n characters), but I believe that 
would be way too complicated.

Ciao,
Stefan