Re: [Boost-users] Question about program_options

From: Drumheller, Michael (michael.drumheller_at_[hidden])
Date: 2006-07-28 13:22:54

Just a follow up: I did not receive any response to my query below
(neither from the list, nor from the library author, whom I attempted to
contact directly).

Can anyone give me an idea of the general status of
boost::program_options?  Is it still being maintained?  Am I the only
person using it ? :)

Thanks,

MD

> _____________________________________________ 
> From: 	Drumheller, Michael  
> Sent:	Friday, July 21, 2006 9:06 AM
> To:	'boost-users_at_[hidden]'
> Subject:	Question about program_options
> 
> Regarding boost::program_options:
> 
> I would like to parse (and then store) some command-line options that
> potentially contain unregistered flags, and I understand from
> <<http://www.boost.org/doc/html/program_options/howto.html#id2716386>>
> that the way to do this is:
> 
>   basic_command_line_parser<char> parser(argc, argv);
>   basic_parsed_options<char>
> parsed(parser.options(options).allow_unregistered().run());
> 
> Indeed this works--for parsing.  But how do I store the resulting
> parsed options (in a way that ignores the unregistered ones)?  Simply
> calling
> 
>    store(parsed, vm);
> 
> throws a boost::program_options::unknown_option exception.  I can take
> the (brute force) step of erasing from parsed.options all elements for
> which the unregistered attribute is true, and then calling
> store(parsed, vm).  That seems to work, but it so clumsy that it makes
> me think I'm using the system in a way that was not intended.
> 
> Can anyone help?
> 
> Thank you.
> 
> MD
> 
> P.S.  There is a bug in the doc: "collect_arguments(...)" on the last
> line of the above link should be collect_unrecognized(...); similarly,
> in the source code parsers.hpp (line 158) there is a mention of the
> nonexistent function "collect_unregistered").
> 
> Michael Drumheller
> Boeing Phantom Works
> Mathematics and Engineering Analysis
> 425.865.3520 michael.drumheller_at_[hidden]
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