Not necessarily the best example in the world but the following works for me:
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(), "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
Sent: Friday, April 12, 2013 4:03 PM
To: boost-users@lists.boost.org
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-parame...
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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