From: "jemptymethod@..." <jemptymethod@...>
Date: 2005-11-24T23:32:26+09:00
Subject: Re: newbie scope issue

thanks everybody!  i do have access to the "pickaxe" book online, plus
a copy of Matz' nutshell book, which was quite helpful to me for the
"numeric" methods in my script below, which i hereby release into the
public domain; error checking of the user input needs to be added


arabic = ''

while arabic.chomp != 'q' do
  puts "Enter a whole number from 1 to 3999 for conversion"
  puts "to Roman Numerals (enter 'q' to exit)"

  arabic = gets
  iArabic = arabic.to_i

  roman = ''
  rNumerals = ['i','v','x','l','c','d','m']
  rIndex = 0

  while iArabic > 0 do
    _divmod = iArabic.divmod(10)

    iArabic = _divmod[0]
    digit = _divmod[1]

    rPlace = ''

    if digit == 4 then
      rPlace = rNumerals[rIndex] + rNumerals[rIndex + 1]

    elsif digit == 9 then
      rPlace = rNumerals[rIndex] + rNumerals[rIndex + 2]

    else
      if digit > 5 then
        rPlace = rNumerals[rIndex + 1]
      end
      rPlace += rNumerals[rIndex] * digit.modulo(5)
    end

    roman = rPlace + roman
    
    rIndex += 2
  end
  
  puts roman
end