>  #local i = n;
>  #while(i >= 0)
>   #if(a[i] != 0)
>    #declare n = i;
>   #end
>   #declare i = i - 1;
>  #end

 He, he... That's what a "real" programmer calls "good style". .. :)
These are the kind of things I never come up myself (I don't consider my
self a "real" programmer at all). But in my simplicity, I will like it
more this way:

#local i=0;
#while (i<n)  
 #if (a[i]!=0)
  #break
 #end
 #local n=n+1
#end

  ...a pain it doesn't works, although I rarely need to use it with POV
scripts.

-- 
Jaime Vives Piqueres

La Persistencia de la Ignorancia
http://www.ignorancia.org/

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