Another validation question

[ghost]

I've written a validation extension method using ICommandLineOptionFluent as the extensions key parameter, the method signature is as follows:

    public static void Validate<T>(this ICommandLineOptionFluent<T> value, Predicate<T> validate)
    {
        ...
        ...
        ...
    }

My question is how can I get the value to pass to the predicate, currently I see no way of doing this rendering the extension pointless. I was hoping to write something which I could contribute back.

As as an example of how I pictured this working:

        fluentCommandLineParser
            .Setup(arg => arg.Endpoints)
            .As('e', "endpoint")
            .Required()
            .Validate(addresses => addresses.All(address => address.IsAddress()));

Any advice?

Thanks,
Lee.

[siywilliams]

Hi Lee,

You're unfortunately not going to get access to the guts that you want through the use of extensions methods, you'll have to mod the library itself.

I've just whipped up a rough commit with the bits that I think you would need. See the commit I've made in the new Issue-35 branch

I'm thinking the validation errors would be returned the same way as when values are unable to be parsed i.e through the result.Errors property.