Identificar nomes

text_search.rb

def identify_name text
    words = text.split(' ')
    words_number = words.count

    [].tap do |result|
      for i in 1..words.count
        words.permutation(i).to_a.each do |word|
          result << word if i == 1 || words.first == word.first
        end
      end
    end

    result.uniq
end