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

[Jason Short <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

Per I Mathisen wrote:
> On Tue, 11 Jun 2002, Miguel Farah wrote:
>
> > Ignorant question for today: is '-' equivalent to '!'?
>
> On further reflection, this ambiguity is unbecoming. Having two different
> symbols to do the same thing is dumb and confusing. Mind if I take it (ie
> "-") out?
As Raimar pointed out, currently -, !, or ~ will work.

I initially just used !, but Erik complained that this was too 
programming-specific and that most rules writers would have an easier 
time with - or even ~.  So I just used all three.  (Unfortunately, I 
can't find the discussion of the on freeciv-dev archives...)
Personally, I don't care very much which is used, or if all three are 
allowed.
jason