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scripts/miscellaneous/ls_command.m

changeset 10289: 4b124317dc38
parent:93c65f2a5668
author: John W. Eaton <jwe@octave.org>
date: Tue Feb 09 20:58:55 2010 -0500 (64 minutes ago)
permissions: -rw-r--r--
description: base_properties::set_children: account for hidden children 
     1## Copyright (C) 2006, 2007 John W. Eaton

     2##

     3## This file is part of Octave.

     4##

     5## Octave is free software; you can redistribute it and/or modify it

     6## under the terms of the GNU General Public License as published by

     7## the Free Software Foundation; either version 3 of the License, or (at

     8## your option) any later version.

     9##

    10## Octave is distributed in the hope that it will be useful, but

    11## WITHOUT ANY WARRANTY; without even the implied warranty of

    12## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13## General Public License for more details.

    14##

    15## You should have received a copy of the GNU General Public License

    16## along with Octave; see the file COPYING.  If not, see

    17## <http://www.gnu.org/licenses/>.

    18

    19## -*- texinfo -*-

    20## @deftypefn {Function File} {[@var{old_cmd} =} ls_command (@var{cmd})

    21## Set or return the shell command used by Octave's @code{ls} command.

    22## The value of @var{cmd} must be a character string.

    23## With no arguments, simply return the previous value.

    24## @seealso{ls}

    25## @end deftypefn

    26

    27## Author: jwe

    28

    29function old_cmd = ls_command (cmd)

    30

    31  global __ls_command__;

    32

    33  if (isempty (__ls_command__))

    34    ## FIXME -- ispc and isunix both return true for Cygwin.  Should they?

    35    if (ispc () && ! isunix () && isempty (file_in_path (EXEC_PATH, "ls")))

    36      __ls_command__ = "cmd /C dir /D";

    37    else

    38      __ls_command__ = "ls -C";

    39    endif

    40  endif

    41

    42  if (nargin == 0 || nargin == 1)

    43

    44    old_cmd = __ls_command__;

    45

    46    if (nargin == 1)

    47      if (ischar (cmd))

    48	__ls_command__ = cmd;

    49      else

    50	error ("ls_command: expecting argument to be a character string");

    51      endif

    52    endif

    53

    54  endif

    55

    56endfunction