Re: decorating validators, CompoundValidator

W-Mark Kubacki wrote:
> Hi group,
> hello Ian,
> 
> Can we introduce a Consecutive/Stepper/Decorating validator or reanimate the 
> CompoundValidator, so the developer can combine decorators?
>     email = Decorating(String(), Email())
> This could basically act like All but the output of the left validator is 
> handled over to its right neighbor. (And vice versa, in case of from_python())
>     # value is the input
>     # op in ['to_python', 'from_python']
>     # I will leave out reversion of decorated_validators for the latter.
>     for validator in decorated_validators:
>         value = getattr(validator, op)(value)
>     return value
> 
> What do you think? Is there a more efficient way?

I'd like one, I just can't think of the name.  Unfortunately, and not 
quite intentionally, All ended up being in this kind of reversed-order, 
and fixing it would cause problematic compatibility problems elsewhere. 
  Maybe And()?

-- 
Ian Bicking : [email protected] : http://blog.ianbicking.org

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