Mercurial > octave
view scripts/plot/util/private/__gnuplot_version__.m @ 32632:2e484f9f1f18 stable
maint: update Octave Project Developers copyright for the new year
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 22 Dec 2023 12:08:17 -0500 |
parents | 597f3ee61a48 |
children |
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######################################################################## ## ## Copyright (C) 2006-2024 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{version} =} __gnuplot_version__ () ## Undocumented internal function. ## @end deftypefn ## Return the version of gnuplot we are using. Note that we do not ## attempt to handle the case of the user switching to different ## versions of gnuplot during the same session. function version = __gnuplot_version__ () persistent __version__ = ""; if (isempty (__version__)) [status, output] = system (sprintf ('"%s" --version', gnuplot_binary ())); if (status != 0) ## This message ends in a newline so that the traceback messages ## are skipped and people might actually see the message, read it, ## comprehend it, take the advice it gives, and stop asking us ## why plotting fails when gnuplot is not found. error ("The gnuplot executable '%s' was not found or does not work. If you have gnuplot installed in a non-standard location, see the 'gnuplot_binary' function\n", gnuplot_binary ()); endif output = strrep (output, "gnuplot", ""); output = strrep (output, "patchlevel", "."); output = strrep (output, "\n", ""); output = strrep (output, "\r", ""); __version__ = strrep (output, " ", ""); endif version = __version__; endfunction