Re: [boost] boost::program_options question - enabling multiple usage of the same switch

Subject: Re: [boost] boost::program_options question - enabling multiple usage of the same switch
From: Vladimir Prus (vladimir_at_[hidden])
Date: 2008-10-07 11:06:08

Khaikin, Sergey wrote:

>  Hi,
> 
> This question was originally brought up here:
> 
> http://lists.boost.org/boost-users/2006/08/21633.php
> 
> but unfortunately was not answered.  What I basically want to do is to
> enable something like running
> 
>  
> 
> $ myprog -v -v -v
> 
>  
> 
> Where -v is some Boolean switch.

Boolean? What would be the semantics of multiple occurences? If you want
integer variable that is incremented by 1 for each occurrence, then I think
this is entirely syntax matter, and probably is best handled by taking
vector<option> returned by parse_command_line, finding all -v occurences,
and merging them into a single option, with a value equal to the number
of occurrences. There is no built-in way to do this.

- Volodya