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 12:18:02

On Tue, Apr 16, 2013 at 9:38 AM, Michael Powell <mwpowellhtx_at_[hidden]>wrote:

>
>
>
> 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;
>>
>
I gather the unreg options includes the command line executable itself?
argv[0]?

>> //-----------------------------------------------------------------------------
>>     // 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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>>
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>
>