plural (Extlib::Inflection)

    # File lib/extlib/inflection.rb, line 297
          def plural(word)
            # special exceptions
            return "" if word == ""
            if result = plural_of[word]
              return result.dup
            end
            result = word.dup
            regex, hash = pluralization_rules
            result.sub!(regex) {|m| hash[m]}
            plural_of[word] = result
            return result
          end