> > to the City if that is available. The index is available at
> > the time the NET section is written out.
>
> I should have looked at the existing RoadDef. That is exactly how it
> is done now: there is a single City and Zip in RoadDef. We need
> instead an array of City and node/side information. When it comes to
> writing out, if there is only one city for the whole road then we just
> write the city field exactly as now, and if there is more than one we
> write it in the new way.

yes, I also came to that point. The housenumber code fills
lists in RoadDef, the img write routines calculate the int values
and finally write the additional data.

Gerd