menu.m improved (menu2.m)

Hi
Here http://www.octave.org/mailing-lists/help-octave/2003/2406
I told I was not interested on improved the menu.m function, but I
finally have make some changes, now the ouptpu is somthing like this:

Title
[1] [A] OptA
[2] [B] OptB
[3] [Q] Quit
.
.

Sorry, I don't know if I must change some credits

.................
## Copyright (C) 1996, 1997 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING.  If not, write to the Free
## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.

## -*- texinfo -*-
## @deftypefn {Function File} {} menu (@var{title}, @var{opt1}, @dots{})
## Print a title string followed by a series of options.  Each option will
## be printed along with a number.  The return value is the number of the
## option selected by the user.  This function is useful for interactive
## programs.  There is no limit to the number of options that may be passed
## in, but it may be confusing to present more than will fit easily on one
## screen.
## @end deftypefn
## @seealso{disp, printf, and input}

## Author: jwe

function num = menu2 (t, varargin)

  if (nargin < 2)
    printf ("usage:");
    printf ("menu2 (title, opt1, ...)\n");
    printf ("where opt1 is [shortcut,text]\n");
    printf ("example:  menu2 (tittle, [\"A\";\"OptA\"],
[\"B\";\"OptB\"]...");
  endif

  ## Force pending output to appear before the menu.

  fflush (stdout);

  ## Don't send the menu through the pager since doing that can cause
  ## major confusion.

  save_page_screen_output = page_screen_output;

  unwind_protect

    page_screen_output = 0;

    if (! isempty (t))
      disp (t);
      printf ("\n");
    endif

    nopt = nargin - 1;

    while (1)
      for i = 1:nopt
        printf ("  [%2d] [%s] %s\n", i,varargin{i}(1,1),varargin{i}(2,:));
        #disp (varargin{i});
      endfor

      printf ("\n");

      s = input ("choose one : ", "s");

      for i= 1: nopt
        to_look(i)=varargin{i}(1,1);
      endfor
      k=num2str(findstr(s,to_look));
      if !(isempty(k))
        s=k;
      endif

        eval (sprintf ("num = %s;", s), "num = [];");

      if (! isscalar (num) || num < 1 || num > nopt)
        printf ("\nerror: input invalid or out of range\n\n");
      else
        break;
      endif
    endwhile

  unwind_protect_cleanup

    page_screen_output = save_page_screen_output;

  end_unwind_protect

endfunction
................

Regards