# Copyright (C) 1996 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.

function t = deblank (s)
  
# usage:  deblank (s)
#
# Remove trailing blanks from the string s.
  
# Original version by Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>.

  if (nargin != 1)
    usage ("deblank (s)");
  endif
  
  if (isstr (s))

    [nr, nc] = size (s);
    len = nr * nc;

    if (len == 0)
      t = s;
    else
      s = toascii (s);
      s = reshape (s, 1, len);
      k = max (find (s != toascii (" ")));
      t = setstr (s (1:k));
    endif

  else
    error ("deblank: expecting string argument");
  endif

endfunction