Re: [Boost-users] program_options allow_unregistered and *nix style

Subject: Re: [Boost-users] program_options allow_unregistered and *nix style
From: Michael Powell (mwpowellhtx_at_[hidden])
Date: 2013-04-16 10:38:24

On Fri, Apr 12, 2013 at 7:16 PM, Larry <lknain_at_[hidden]> wrote:

>   Not necessarily the best example in the world but the following works
> for me:
>

Thanks so much. It is sufficient.

using namespace boost::program_options;
> namespace po = boost::program_options;
>
> const int style(command_line_style::default_style +
>                 command_line_style::allow_long_disguise +
>                 command_line_style::allow_dash_for_short);
> po::variables_map vm;
> vector<string> unreg;
>
>
> //-----------------------------------------------------------------------------
>     // Set up options
>
> //-----------------------------------------------------------------------------
>
>     po::options_description desc("Allowed options");
>     desc.add_options()
>         ("help,h", "produce help message")
>         ("input-file,i", po::value<vector<string> >(), "input file")
>         ("debug,d",      po::value<string>(),          "debug")
>         ("noupdates,x",  po::value<string>(),          "no updates")
>     ;
>
>
> //-----------------------------------------------------------------------------
> // Parse the command line
>
> //-----------------------------------------------------------------------------
>
> parsed_options parsed =
> command_line_parser(argc,argv).style(style).options(desc).allow_unregistered().run();
> unreg  = collect_unrecognized(parsed.options,include_positional);
> po::store(parsed, vm);
> po::notify(vm);
>
>
> Much of the style stuff is documented only if you wade through code. unreg
> will contain the unrecognized items.
>
> Larry
>
>  *From:* Michael Powell <mwpowellhtx_at_[hidden]>
> *Sent:* Friday, April 12, 2013 4:03 PM
> *To:* boost-users_at_[hidden]
> *Subject:* [Boost-users] program_options allow_unregistered and *nix style
>
>   Hello,
>
> I would like to find a way to allow_unregistered program_options, as well
> as specify cls::unix_style ^ cls::allow_short, where cls is
> po::command_line_style.
>
> The code I've got here doesn't seem to like unrecognized ones:
>
> //vis_ are my visible options, vars_ is my variable map.
>     po::store(parse_command_line(argc, argv, vis_,
>             cls::unix_style ^ cls::allow_short), vars_);
>     po::notify(vars_);
>
> And then a slight variation with apparently a way to do this (untested),
> how to specify that cls?
>
> //
> http://stackoverflow.com/questions/10178525/how-to-handle-unsolicited-parameters-in-boostprogram-options
>     po::parsed_options parsed_ = po::command_line_parser(argc, argv)
>         .options(vis_).allow_unregistered().run();
>
> Possible? Thank ye...
>
> Regards,
>
> Michael Powell
>
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