[boost] Re: boost::program_options exception reasons.

From: Vladislav Lazarenko (snail_at_[hidden])
Date: 2005-04-20 04:34:05

Okey-dockey, I will make this change as soon as possible and post a patch here.

Vladimir Prus wrote:
> Hi Vladislav,
> 
> 
>>Good day, guys. I am new to boost and have some qestion concerns
>>boost::program_options library. I've wrote a simple program (see code
>>below), and when I trying to pass multiple '--help' option to the program,
>>it throws exception with reason "multiple_occurrences". This exception
>>reason may confuse the end-user, I wanna get some more pretty error
>>description.
>>
>>So, I have only 2 solutions:
>>
>>1) Prase exception reason and give a user more informative/pretty
>>description. 2) Refactor boost::program_options to enable it to throw
>>exceptions with informative reason.
> 
> 
> The second approach is clearly better. Even adding passing the name of the
> duplicate option to the message would help. Are you willing to code this
> change?
> 
> 
>>I need a hint from professional. BTW, how can I contribute to
>>boost::program_options? 
> 
> 
> Just by sending patches to this list ;-) Or more speicifcally, the output of
> "cvs diff -u boost/program_options libs/program_options".
> 
> Thanks,
> Volodya
> 
> 
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