whitespace (Randexp::Reducer)

    # File lib/randexp/reducer.rb, line 68
        def self.whitespace(quantity)
          case quantity
          when '?''?'       then ['', Randgen.whitespace].pick
          when :+, '+?''+?'  then raise "Sorry, \"\\s+\" is too vague, try setting a range: \"\\s{1, 5}\""
          when :*, '*?''*?'  then raise "Sorry, \"\\s*\" is too vague, try setting a range: \"\\s{0, 5}\""
          when Range      then quantity.pick.of { Randgen.whitespace } * ''
          when Integer    then quantity.of { Randgen.whitespace } * ''
          when nil        then Randgen.whitespace
          end
        end