[GRASS5] Zoom

[Radim Blazek]

On Thursday 02 May 2002 12:31 pm, Eric G. Miller wrote:
> That looks like a good start, but what's the difference between the MAP
> and INPUT versions?  

Just:
Opt->key = "output";
x
Opt->key = "map";

> Does the MAP version mean read/write?  
No it is only old map for modules which dont have output (like d.vect).
(BTW, I think that input could be always input=, but map= is already
used in g50 and it seems to me that others want this distinction?)

> Also, the
> V_CATS one doesn't seem useful, since there already is a multiple flag.

V_CATS may be something like '1,3,7-9,11' and may be parsed by
Vect_str_to_cat_list (char *str, struct cat_list *list);

> Also, could we consider moving to enum's rather than #defines whenever
> possible.  The two small benefits are possibly better type checking,
> and better debugging support.

OK, done for G_define_standard_option().

Radim