Reversing a string without using array, classes and reverse function

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From	Rubist Rohit <passionate_programmer@hotmail.com>
Newsgroups	comp.lang.ruby
Subject	Reversing a string without using array, classes and reverse function
Date	Thu, 21 Apr 2011 22:54:16 -0500
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I am trying this:

mystring = gets
mystring.scan(/..$/) {|x| puts x}

It returns only the last character. Is it possible to add the above line
in loop?

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Reversing a string without using array, classes and reverse function Rubist Rohit <passionate_programmer@hotmail.com> - 2011-04-21 22:54 -0500
  Re: Reversing a string without using array, classes and reverse function spiralofhope <spiralofhope_rubyml@lavabit.com> - 2011-04-21 23:32 -0500
    Re: Reversing a string without using array, classes and reverse function Rubist Rohit <passionate_programmer@hotmail.com> - 2011-04-22 00:07 -0500
      Re: Reversing a string without using array, classes and reverse function Jose Calderon-Celis <josecalderoncelis@gmail.com> - 2011-04-22 02:45 -0500
        Re: Reversing a string without using array, classes and reverse function Stu <stu@rubyprogrammer.net> - 2011-04-22 03:32 -0500
          Re: Reversing a string without using array, classes and reverse function Stu <stu@rubyprogrammer.net> - 2011-04-22 03:43 -0500
            Re: Reversing a string without using array, classes and reverse function Larry Lv <larrylv1990@gmail.com> - 2011-04-22 04:24 -0500
        Re: Reversing a string without using array, classes and reverse function Rubist Rohit <passionate_programmer@hotmail.com> - 2011-04-22 06:56 -0500
  Re: Reversing a string without using array, classes and reverse function Stu <stu@rubyprogrammer.net> - 2011-04-22 03:16 -0500
  Re: Reversing a string without using array, classes and reverse function Robert Dober <robert.dober@gmail.com> - 2011-04-22 04:51 -0500
    Re: Reversing a string without using array, classes and reverse function Jose Calderon-Celis <josecalderoncelis@gmail.com> - 2011-04-22 09:42 -0500
      Re: Reversing a string without using array, classes and reverse function Brian Candler <b.candler@pobox.com> - 2011-04-23 06:11 -0500
        Re: Reversing a string without using array, classes and reverse function Robert Dober <robert.dober@gmail.com> - 2011-04-23 07:34 -0500
  Re: Reversing a string without using array, classes and reverse function Hans Mackowiak <hanmac@gmx.de> - 2011-04-22 05:33 -0500
  Re: Reversing a string without using array, classes and reverse function Harry Kakueki <list.push@gmail.com> - 2011-04-22 06:15 -0500
    Re: Reversing a string without using array, classes and reverse function spiralofhope <spiralofhope_rubyml@lavabit.com> - 2011-04-22 07:05 -0500
    Re: Reversing a string without using array, classes and reverse function Rubist Rohit <passionate_programmer@hotmail.com> - 2011-04-22 07:17 -0500
  Re: Reversing a string without using array, classes and reverse function Josh Cheek <josh.cheek@gmail.com> - 2011-04-23 13:33 -0500
    Re: Reversing a string without using array, classes and reverse function Duke Normandin <dukeofperl@ml1.net> - 2011-04-23 13:56 -0500
    Re: Reversing a string without using array, classes and reverse function Adam Prescott <adam@aprescott.com> - 2011-04-23 16:16 -0500

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