playing with anagrams..

anagrams.rb

def combine_anagrams words 
  
  hash = Hash.new
  
  words.each do |word|
    sorted_word = word.downcase.chars.sort
    hash.has_key?(sorted_word) ? hash[sorted_word].push(word) : hash[sorted_word] = [word]
  end
  
  hash.values

end

def hashify( string )
  # string => hash of letters' occurence 
  # get rid of non-word chars
  hash = Hash.new
  string.gsub(/\W/,"").downcase.chars.each {|char| hash[char].nil? ? hash[char] = 1 : hash[char] += 1 }
  hash
end

def anagrams? string1, string2
  hashify(string1) == hashify(string2)
end


def main
  # anagrams grouping
  words = %w(cars for potatoes racs Four Scar creams scream)
  # => output: [["cars", "racs", "scar"], ["four"], ["for"], ["potatoes"],["creams", "scream"]]
  puts combine_anagrams(words)
  
  # clever anagrams
  monica = "Monica Lewinsky"	
  nice_woman = "Nice silky woman"
  puts anagrams?( monica, nice_woman )
    
end