Mercurial > jwe > octave
view scripts/miscellaneous/perl.m @ 31137:0f4d16af143b
perl.m, python.m: Redo input validation.
* perl.m, python.m: Redo input validation to check for correct number of
arguments as well as type. Issue more informative error messages when
validation fails. Add more BIST tests for input validation.
author | Rik <rik@octave.org> |
---|---|
date | Sat, 09 Jul 2022 11:11:53 -0700 |
parents | 796f54d4ddbf |
children |
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######################################################################## ## ## Copyright (C) 2008-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 3 of the License, 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, see ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {@var{output} =} perl (@var{scriptfile}) ## @deftypefnx {} {@var{output} =} perl (@var{scriptfile}, @var{argument1}, @var{argument2}, @dots{}) ## @deftypefnx {} {[@var{output}, @var{status}] =} perl (@dots{}) ## Invoke Perl script @var{scriptfile}, possibly with a list of command line ## arguments. ## ## Return output in @var{output} and optional status in @var{status}. If ## @var{scriptfile} is not an absolute filename it is searched for in the ## current directory and then in the Octave loadpath. ## @seealso{system, python} ## @end deftypefn function [output, status] = perl (scriptfile, varargin) if (nargin < 1) print_usage (); endif if (! ischar (scriptfile) || isempty (scriptfile)) error ("perl: SCRIPTFILE must be a non-empty string"); endif if (nargin > 1 && ! iscellstr (varargin)) error ("perl: ARGUMENTS must be strings"); endif if (numel (scriptfile) < 2 || ! strcmp (scriptfile(1:2), "-e")) ## Attempt to find file in loadpath. No effect for absolute filenames. scriptfile = file_in_loadpath (scriptfile); endif [status, output] = system (["perl " scriptfile ... sprintf(" %s", varargin{:})]); endfunction ## Test input validation %!error <Invalid call> perl () %!error <SCRIPTFILE must be a non-empty string> perl (123) %!error <SCRIPTFILE must be a non-empty string> perl ("") %!error <ARGUMENTS must be strings> perl ("perlfile", 123)