Re: [Boost-users] Question about program_options

From: Mortoc (Mortoc_at_[hidden])
Date: 2006-08-11 04:01:11

I use it.
Very nice when developing Win32 apps cross platform with anything else.
Thanks again boost and whoever wrote this lib.

-Chris

On 8/10/06, Drumheller, Michael <michael.drumheller_at_[hidden]> wrote:
>
> I noticed some recent activity on the list by the author of
> boost::program_options, so I'm posting this one more time.
>
> Thank you.
>
> MD
>
>                 Date: Fri, 28 Jul 2006 10:22:54 -0700
>                 From: "Drumheller, Michael"
> <michael.drumheller_at_[hidden]>
>                 Subject: Re: [Boost-users] Question about
> program_options
>                 To: <boost-users_at_[hidden]>
>
>                 Content-Type: text/plain;       charset="us-ascii"
>
>                 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] This email
> may contain
>                 > proprietary information.  If you are not the intended
> recipient please
>                 > delete it and notify the sender that you received it
> in error.
>
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