Hello everybody,

I'm trying to use subcommands with the Core library. I would like to factorize several things :

• A set of common arguments (to set color, verbosity and so on)
• A common way to deal with these arguments
• A pretty way to define subcommands using these common arguments and way to handle it.

Main problem is that I can't define more arguments to my subcommand. More details in my code, which is joined. You may also find it here (Github gist, could be updated): http://j.mp/1JHlZ6S

Result of the compilation (corebuild cmd.byte)

+ ocamlfind ocamlc -c -w A-4-33-40-41-42-43-34-44 -strict-sequence -g -bin-annot -short-paths -thread -syntax camlp4o -package bin_prot.syntax -package sexplib.syntax,comparelib.syntax,fieldslib.syntax,variantslib.syntax -package core -o cmd.cmo cmd.ml
File "cmd.ml", line 98, characters 5-44:
Warning 48: implicit elimination of optional argument ?extend
File "cmd.ml", line 49, characters 11-341:
Warning 27: unused variable summary.
File "cmd.ml", line 49, characters 20-341:
Warning 27: unused variable args.
Finished, 3 targets (0 cached) in 00:00:03.

Thanks for your help
Leo