From: Intransition <transfire@...>
Date: 2010-09-25T16:54:29+09:00
Subject: Re: Ruby-based data language

On Sep 22, 11:22 pm, "Sean O'Halpin" <sean.ohal...@gmail.com> wrote:
> Hi Tom,
>
> maybe the Doodle gem does what you're after:
>
> require 'doodle'
>
> class Contact < Doodle
>   has :email, :kind => String
>   has :phone, :kind => String do
>     must "be of form xxx-xxx-xxxx" do |s|
>       s =~ /\d{3}-\d{3}-\d{4}/
>     end
>   end
> end
>
> class Person < Doodle
>   has :name, :kind => String
>   has :age, :kind => Integer
>   has Contact
> end
>
> class People < Doodle
>   has :people, :collect => Person
> end
>
> people = People do
>   person do
>     name "Joe Foo"
>     age 33
>     contact do
>       email "joe....@example.com"
>       phone "555-555-1234"
>     end
>   end
> end
>
> p people
> __END__
> #<People:0x8c22ec0 @people=[#<Person:0x8c31100 @name="Joe Foo",
> @age=33, @contact=#<Contact:0x8c3ccbc @email="joe....@example.com",
> @phone="555-555-1234">>]>
>
> Regards,
> Sean

Close. The only thing with Doodle is that you have to pre-define the
data structure. Hmm... Doodle would be something akin to a Schema
language for the format I am proposing.