From: cdc@...2go.com (Cliff Cyphers)
Date: 2006-06-26T09:13:05+09:00
Subject: Re: Stumped:beginners question

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On Mon, Jun 26, 2006 at 08:57:05AM +0900, Pete Yandell wrote:
> I'm just going to rewrite this, because there are a bunch of bad =20
> things in it.
>=20
> def ask(question)
>   response_is_valid =3D false
>   result =3D false
>   while !response_is_valid
>     puts question
>     reply =3D gets.chomp.downcase
>     case reply
>       when 'yes'
>         result =3D true
>         response_is_valid =3D true
>       when 'no'
>         result =3D false
>         response_is_valid =3D false
>       else
>         puts 'Please answer "yes" or "no".'
>     end
>   end
>   result
> end
>

much simpler than using the case statement:

def ask(question)
  puts question
  reply =3D gets.strip.downcase
  while ("#{reply}" !=3D "yes") && ("#{reply}" !=3D "no")
    puts 'please answer "yes" or "no"'
    puts question
    reply =3D gets.strip.downcase
  end
end


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