#include <octave/oct.h>

DEFUN_DLD (stringdemo, args, , "String Demo")
{
  int nargin = args.length();
  octave_value_list retval; 

  if (nargin != 1)
    print_usage ();
  else
    {
      charMatrix ch = args(0).char_matrix_value ();

      if (! error_state)
        {
          if (args(0).is_sq_string ())
            retval(1) = octave_value (ch, true);
          else
            retval(1) = octave_value (ch, true, '\'');

	  octave_idx_type nr = ch.rows();
          for (octave_idx_type i = 0; i < nr / 2; i++)
            {
              std::string tmp = ch.row_as_string (i);
              ch.insert (ch.row_as_string(nr - i - 1).c_str(), i, 0);
              ch.insert (tmp.c_str(), nr - i - 1, 0);
            }
          retval(0) = octave_value (ch, true);
        }
    }
  return retval;
}