Calculate your number according to Numerology

numerology.rb

#
# Calculate your number according to http://www.astrology.com/what-numerology/2-d-d-66854
#
#
# HOW ARE NUMEROLOGY CALCULATIONS DONE
# In numerology, all numbers are reduced to the single digits 1 through 9 except the special master numbers 11 and 22. 1, 2, 3, 4, 5, 6, 7, 8, 9, 11 and 22 represent the major vibration rates associated with people’s characteristics.
# The numbers are reduced by simple addition. The number 15, for instance, is reduced by adding 1 + 5 to get 6. Similarly, the number 1974 can be reduced by adding 1 + 9 + 7 + 4 to get 21. The 21 can be further reduced by adding 2 + 1 to get 3.
# Letters in individuals’ names are converted to numbers and then added together. These numbers, in turn, are also reduced. The letter A, for instance, is 1; the letter B is 2; the letter C is 3, and so forth. The following table shows the numbers assigned to all 26 letters in the English alphabet.
# 
# 1 2 3 4 5 6 7 8 9
# A B C D E F G H I
# J K L M N O P Q R
# S T U V W X Y Z
#
# NOTE:
#   You will need the sinatra and haml gem
#   %> gem install haml sinatra
# 
# USAGE:
#   ruby numerology.rb
#

ENV['RACK_ENV'] ||= 'production'

require "sinatra"
require "haml"

helpers do
  
  # Reduces the number to 1 to 9 or 22 or 11
  #
  def reduce_number(number)
    until number == 22 || number == 11 || number <= 9
      number = number.to_s.split("").map(&:to_i).inject(:+)
    end
    number
  end
  
  # The returns the value of the word
  # 
  def value_for_word(word)
    letters = word.upcase.split("").reject{ |v| v == " "}
    letters.map { |l| number_for_letter(l) }.inject(:+)
  end

  # Returns the corresponding number for letter
  #
  def number_for_letter(letter)
    letter_value_table[letter]
  end

  # Based on table
  # 
  # 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
  # A | B | C | D | E | F | G | H | I
  # J | K | L | M | N | O | P | Q | R
  # S | T | U | V | W | X | Y | Z
  #  
  def letter_value_table
    return @table if @table

    @table = {}
    ('A'..'Z').to_a.each_with_index do |l,i|
      @table[l] = i%9 + 1
    end

    return @table
  end
end

get '/' do
  haml :index
end

post '/calculate' do
  @name = params[:name]
  @word_value = value_for_word(@name)
  @reduced_value = reduce_number(@word_value)
  haml :calculate
end

__END__

@@index
%h1
  Numerology
  
%form{ :action => "/calculate", :method => :post }
  %label{ :for => :name }
    Your Name
  %input{ :type => :text, :name => :name, :id => :name }
  %button{ :type => :submit }
    Calculate Number
    
@@calculate
=haml :index, :layout => false
.result
  Your the number for #{@name} is #{@word_value}
  
.result
  That gives us the number #{@reduced_value}
  
@@layout
!!!
%html
  %head
    %title
      Numerology - Calculate Your Number
    
  %body
    #page
      =yield