Re: [Boost-users] [Program Options] terminate parsing after first positional argument

Subject: Re: [Boost-users] [Program Options] terminate parsing after first positional argument
From: sjrd (sjrdoeraene_at_[hidden])
Date: 2013-01-22 08:01:28

Hello everyone,

Stuart Pook wrote
> Hello,
> 
> How can I tell Boost Program Options to stop parsing the arguments as soon
> as it finds a positional argument?

I was struggling with the same issue, and in the end I found a solution that
does not involve any patch to program_options.
My solution uses the (undocumented but public)
command_line_parser::extra_style_parser() method. You have to define the
following style parser:

and then register it to your instance of command_line_parser with
extra_style_parser. In my code, this yields:

Note that the solution requires you to define the positional arguments with
.positional(), as usual. In fact, the function I showed above mimics the
built-in one that takes care of the '--', with some tweaks.

Cheers,
Sébastien

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