Re: Ruby Quiz - Challenge #8 - Base32 Alphabet - Convert the Super "Sekretoooo" 240-Bit CryptoKitties Genome to Kai Notation - Annipurrsary!

Hello,

    Welcome Delton Ding to Ruby Quiz! Great solution. Keep it up.

    For reference here's my humble little code snippet / answer -
cut-n-paste from the world's 1st "standard" base32 / kai library / gem
[1] :)):


module Kai

  # See https://en.wikipedia.org/wiki/Base58
  ## Note: alphabet used for encoding
  ALPHABET = '123456789abcdefghijkmnopqrstuvwx'
  BASE     = ALPHABET.length      ## 32 chars/letters/digits

  # Converts a base10 integer to a base32 string.
  def self.encode( num )
    buf = String.new
    while num >= BASE
      mod = num % BASE
      buf = ALPHABET[mod] + buf
      num = (num - mod)/BASE
    end
    ALPHABET[num] + buf
  end


  def self.fmt( kai )
    ## note: allow spaces; remove them all first
    kai = kai.gsub( ' ', '' )

    ## format in groups of four (4) separated by space
    ##  e.g.  ccac7787fa7fafaa16467755f9ee444467667366cccceede
    ##     :  ccac 7787 fa7f afaa 1646 7755 f9ee 4444 6766 7366 cccc eede
    kai.reverse.gsub( /(.{4})/, '\1 ').reverse.strip
  end
end


    Cheers. Prost.

[1] https://github.com/cryptocopycats/base32.kai.rb

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