From: Sebastian Hungerecker <sepp2k@...>
Date: 2008-07-31T19:23:42+09:00
Subject: Re: Help me with this Numerology code please...

Web Reservoir wrote:
> Now when you type RUBY you should get the total as 9+3+2+7 = (21) 2+1 =
> 3
> where R = 9, U = 3, B = 2 and y = 7 ( as shown above )
> ...
> I would like to code this in Ruby. Pl. help me with this code.

>> "RUBY".unpack("C*")
=> [82, 85, 66, 89]
( unpack("C*") gives you the ASCII value of each character in the string)

>> ?A
=> 65
(The ASCII value of A is 65)

>> "RUBY".unpack("C*").map {|x| x - ?A}
=> [17, 20, 1, 24]

>> "RUBY".unpack("C*").map {|x| (x-65)%9}
=> [8, 2, 1, 6]

>> "RUBY".unpack("C*").map {|x| (x-65)%9 + 1}
=> [9, 3, 2, 7]

>> "RUBY".unpack("C*").inject(0) {|s,x| s + (x-65)%9 + 1}
=> 21

>> "RUBY".unpack("C*").inject(0) {|s,x| s + (x-65)%9 + 1}.to_s.split(//)
=> ["2", "1"]

>> "RUBY".unpack("C*").inject(0) {|s,x| s + (x-65)%9 + 
1}.to_s.split(//).inject(0) {|s,x| s + x.to_i}
=> 3

HTH,
Sebastian
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