justify

# File activesupport/lib/active_support/multibyte/chars.rb, line 674
        def justify(integer, way, padstr=' ') #:nodoc:
          raise ArgumentError, "zero width padding" if padstr.length == 0
          padsize = integer - size
          padsize = padsize > 0 ? padsize : 0
          case way
          when :right
            result = @wrapped_string.dup.insert(0, self.class.padding(padsize, padstr))
          when :left
            result = @wrapped_string.dup.insert(-1, self.class.padding(padsize, padstr))
          when :center
            lpad = self.class.padding((padsize / 2.0).floor, padstr)
            rpad = self.class.padding((padsize / 2.0).ceil, padstr)
            result = @wrapped_string.dup.insert(0, lpad).insert(-1, rpad)
          end
          chars(result)
        end