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comparison scripts/plot/gnuplot_binary.in @ 7361:a2870fd8ac58

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[project @ 2008-01-12 07:50:54 by jwe]
author jwe
date Sat, 12 Jan 2008 07:50:55 +0000
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children ff8d7f3ad203
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7360:1e716cb4b2a3 7361:a2870fd8ac58
1 ## Copyright (C) 2008 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 {Loadable Function} {@var{val} =} gnuplot_binary ()
21 ## @deftypefnx {Loadable Function} {@var{old_val} =} gnuplot_binary (@var{new_val})
22 ## Query or set the name of the program invoked by the plot command.
23 ## The default value @code{\"gnuplot\"}. @xref{Installation}.
24 ## @end deftypefn
25
26 ## Author: jwe
27
28 function retval = gnuplot_binary (new_val)
29
30 persistent gp_binary = %OCTAVE_CONF_GNUPLOT%;
31
32 if (nargout > 0 || nargin == 0)
33 retval = gp_binary;
34 endif
35
36 if (nargin == 1)
37 if (ischar (new_val))
38 if (! isempty (new_val))
39 gp_binary = new_val;
40 else
41 error ("gnuplot_binary: value must not be empty");
42 endif
43 else
44 error ("gnuplot_binary: expecting arg to be a character string");
45 endif
46 elseif (nargin > 1)
47 print_usage ();
48 endif
49
50 endfunction