[Freeciv-Dev] Re: nation.ruleset terrain bug (PR#1554)

[Raimar Falke <rf13@xxxxxxxxxxxxxxxxx>]

On Tue, Jun 11, 2002 at 07:53:22AM -0400, Miguel Farah wrote:
>  Jason Short [11/06/2002 02:35] dijo/said:
> >Christian Knoke wrote:
> >> CVS 10 JUNE 2002 unpatched GTK+ 1.2
> >> 
> >> The name selction code doesn't work as explained in
> >> README.rulesets. I tested with a modified german.ruleset
> >> with entries like this:
> >> 
> >> "Berlin (grassland, -mountains)", 
> >> "Hamburg(river, -mountains, grassland, ocean)"
> >> 
> >> but "Berlin" was suggested adjacent to a mountain, and
> >> "Hamburg" was suggested on a tile w/o river.
> >
> >This can happen if the numbers work out right.
> >
> >Unlike the "original" natural city naming system, the "new" natural city 
> >naming system does not enforce absolutes by saying that a city labeled 
> >"-mountain" cannot occur near to a mountain.  In the "original" system, 
> >something like this was done and it made the system degrade badly in 
> >certain situations: for instance Riverside was often the default 
> >captital of America.
> >[...]
> 
> Ignorant question for today: is '-' equivalent to '!'?

From doc/README.rulesets:

  (case-insensitive) a terrain type for the city (or "river"), with a
  preceeding !, -, or ~ to negate it.  The terrain list is optional, of
  course, so the entry can just contain the cityname if desired.  A city