From: Moises Trovo <moises.trovo@...>
Date: 2008-02-05T03:20:11+09:00
Subject: Re: Learn to Program, by Chris Pine

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 actually ROMAN[key] and not working with numbers having a 9.


On Feb 3, 2008 4:02 AM, Todd Benson <caduceass@gmail.com> wrote:

> On Feb 2, 2008 8:49 PM, Todd Benson <caduceass@gmail.com> wrote:
> > Actually, better production code that keeps in line with OO concepts
> would be...
> >
> > class Integer
> >   ROMAN = {
> >     1 => "I",
> >     5 => "V",
> >     10 => "X",
> >     50 => "L",
> >     100 => "C",
> >     500 => "D",
> >     1000 => "M"
> >   }
> >
> >   def roman
> >     number, roman_string = self, ""
> >     ROMAN.keys.sort.reverse.each do |key|
> >       roman_string << (ROMAN[n] * (number/key)
> >       n %= key
> >     end
> >     roman_string
> >   end
> > end
> >
> > #usage
> > puts 2137.roman
> > # => "MMCCCXVII"
> >
> > I'm pretty sure there were better and more thorough examples at
> > http://www.rubyquiz.com/quiz22.html.
>
> gsub('number', 'n') on that code...and there's a missing parenthesis
> ")" number/key line
>
> Yeah, yeah
>
> That's what I get for not using cut and paste :-)
>
> Todd
>
>

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