From: ts <decoux@...>
Date: 2001-12-11T01:02:59+09:00
Subject: [ruby-talk:28094] Re: How does puts decide how to print a given object?

>>>>> "H" == Harry Ohlsen <harryo@zip.com.au> writes:

H> alias old_puts puts

 Apparently you like alias and self :-)

 Try this


   def puts(x)
      if x.type == Array
         x.puts
      else
         super
      end
   end
    
   class Array
      def puts
         Kernel::puts self
      end
   end
    
   a = [1, 2, 3, 4, 5]
    
   puts a # => "1\n2\n3\n4\n5" (ie, the normal output)
   
   class Array
      def puts
         super to_s
      end
      
      def to_s
         "[" + join(", ") + "]"
      end
   end
    
   b = [1, 2, 3, 4, 5]
    
   puts b # => "[1, 2, 3, 4, 5]"


Guy Decoux