Re: groupdefault (Re: mutually exclusive group of options)

Hi there

I've commited into the CVS a primordial implementation of mutually 
exclusive groups, which I called "modes" (since it kind of represents 
the modes an application can be used).

I'm not still sure this is the correct name, so, please, if you have 
suggestions, they're more than welcome :-)

this feature is still not yet documented (I'll do that next);

here's an example (test_modes_cmd.ggo)

package "test_modes"
version "1.0"

section "some modes just for testing"

option "no-mode" N "a generic option not beloging to any mode" optional
option "no-mode2" - "another generic option not beloging to any mode" 
string opt
ional

defmode "my grp2"
defmode "my mode"
defmode "grp1" modedesc="any option of this mode is in contrast with any 
option
of the other mode\nNotice that this description is quite long so it may 
spawn ma
ny lines...              fortunately gengetopt will wrap it for you :-)"

modeoption "opta" a "string a" multiple mode="grp1"
modeoption "optA" A "string A" string argoptional mode="grp1"
modeoption "optAmul" M "string M" argoptional string mode="grp1" multiple
modeoption "optb" b "string b" mode="grp1"

modeoption "optc" - "string c" mode="my grp2"
modeoption "optd" d "string d" mode="my grp2"

modeoption "mopt" m "option of my mode" int optional mode="my mode"

and here's an example of execution with errors, due to conflicts:

./test_modes -a foo -m10 -d bar
./test_modes: option --opta conflicts with option --optd
./test_modes: option --opta conflicts with option --mopt
./test_modes: option --optd conflicts with option --mopt

what do you think?

hope to hear from you soon
cheers
	Lorenzo

-- 
Lorenzo Bettini, PhD in Computer Science, DSI, Univ. di Firenze
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