Re: [Boost-users] [program options] Using similar option strings

From: François Duranleau (duranlef_at_[hidden])
Date: 2006-09-18 12:49:03

On Sat, 16 Sep 2006, Jason House wrote:

>   I recent attempted the equivalent of allowing the follwoing two options:
> --help
> --help-command [arg]
> --help-component [arg]
>
>   When I ran the program with --help, I got an error that it was
> ambiguous.  I didn't realize it, but program options allows the user to
> not specify the full string with "--".  This then makes all the options
> above match --help.
>
>   How can I get this type of functionality without getting runtime
> errors about ambiguity?
>   If I were to reduce it to just --help and --help-command, it may be
> possible to just do --help with an optional argument, but I don't know
> how to do that.  Currently, I'd like to avoid a shared namespace for
> commands and components.

You need to deactivate the command line style 'allow-guessing' using the 
style member function of your command_line_parser. See
http://www.boost.org/doc/html/basic_command_line_parser.html#id2425682-bb
and
http://www.boost.org/doc/html/id2358254.html

-- 
François Duranleau
LIGUM, Université de Montréal