I love Enumerable

01-nice_enumeration.rb

# @param [true, false] qt Whether or not Keywords are surrounded by quotes
# @return [Array] The list of all Keyword-words (with quotes if specified)
def self.all_words(qt=false)
  words = select(:word).map(&:word)
  qt && words.map(&:inspect) || words
end

02-bad_enumeration.rb

# :nodoc: because bad enumator-folks also hate documentation and things like life
def self.all_words(qt=false)
  words = []
  select(:word).each {|w|
    words << (qt ? w.word.inspect : w.word)
  }
  words
end