Michele Caini skrev:

Il 04/03/2010 21:49, Thorsten Ottosen ha scritto:

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Hi,

Is there some way to say

bpo::options_description desc("Allowed options"); desc.add_options() ("method", bpo::valuestd::string()->allowed_values("foo")("bar"), "" )

so I donøt have to reject the arguments manually?

Thanks

-Thorsten

Can you try using regex to cut off options?

That would be a good idea. I think it would also be cool if we could simply say po::valuestd::string()->match( "some regex expression here" ); It so common to do this kind of validation that I think it would be a benefit if the library could handle this. It should be possible to let the library depend on boost.regex only when needed. -Thorsten

On Friday 05 March 2010 23:32:15 Thorsten Ottosen wrote:

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Is there some way to say

bpo::options_description desc("Allowed options"); desc.add_options() ("method", bpo::valuestd::string()->allowed_values("foo")("bar"), "" ) .... I think it would also be cool if we could simply say

po::valuestd::string()->match( "some regex expression here" );

It so common to do this kind of validation that I think it would be a benefit if the library could handle this. It should be possible to let the library depend on boost.regex only when needed.

I agree this could be handy -- both ideas above. Unfortunately, I am unlikely to implement this immediately, so could you file an issue? Thanks, Volodya