Mercurial > hg > octave-lyh
annotate scripts/miscellaneous/ls_command.m @ 11300:4ecc7bc5bc83
search PATH from environment for programs, not EXEC_PATH
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 26 Nov 2010 02:58:16 -0500 |
| parents | 95c3e38098bf |
| children | fd0a3ac60b0e |
| rev | line source |
|---|---|
| 7017 | 1 ## Copyright (C) 2006, 2007 John W. Eaton |
| 6115 | 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 | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## your option) any later version. | |
| 6115 | 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 | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 6115 | 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 | |
| 29 function 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? | |
|
11300
4ecc7bc5bc83
search PATH from environment for programs, not EXEC_PATH
John W. Eaton <jwe@octave.org>
parents:
10549
diff
changeset
|
35 if (ispc () && ! isunix () |
|
4ecc7bc5bc83
search PATH from environment for programs, not EXEC_PATH
John W. Eaton <jwe@octave.org>
parents:
10549
diff
changeset
|
36 && isempty (file_in_path (getenv ("PATH"), "ls"))) |
| 6117 | 37 __ls_command__ = "cmd /C dir /D"; |
| 6115 | 38 else |
| 39 __ls_command__ = "ls -C"; | |
| 40 endif | |
| 41 endif | |
| 42 | |
| 43 if (nargin == 0 || nargin == 1) | |
| 44 | |
| 45 old_cmd = __ls_command__; | |
| 46 | |
| 47 if (nargin == 1) | |
| 48 if (ischar (cmd)) | |
| 10549 | 49 __ls_command__ = cmd; |
| 6115 | 50 else |
| 10549 | 51 error ("ls_command: expecting argument to be a character string"); |
| 6115 | 52 endif |
| 53 endif | |
| 54 | |
| 55 endif | |
| 56 | |
| 57 endfunction |