gistfile1.rb

1.9.2p290 :006 > string
 => "doo bee doo bee" 
1.9.2p290 :007 > string="doo bee doo bee"
 => "doo bee doo bee" 
1.9.2p290 :008 > string=string.downcase.split
 => ["doo", "bee", "doo", "bee"] 
1.9.2p290 :009 > string
 => ["doo", "bee", "doo", "bee"] 
1.9.2p290 :010 > def count_w(list)
1.9.2p290 :011?>   c=Hash.new(0)
1.9.2p290 :012?>   for a_word in list
1.9.2p290 :013?>     c[a_word]+=1
1.9.2p290 :014?>     end
1.9.2p290 :015?>   c
1.9.2p290 :016?>   end
 => nil 
1.9.2p290 :017 > count_w(string)
 => {"doo"=>2, "bee"=>2}