1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
## Copyright (C) 2012-2013 David Bateman
##
## 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
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {[@var{style}, @var{color}, @var{marker}, @var{msg}] =} colstyle (@var{linespec})
## Parse @var{linespec} and return the line style, color, and markers given.
## In the case of an error, the string @var{msg} will return the text of the
## error.
## @end deftypefn
function [l, c, m, msg] = colstyle (style)
if (nargin != 1)
print_usage ();
endif
if (! ischar (style))
error ("colstyle: STYLE must be a string");
endif
try
opt = __pltopt__ ("colstyle", style);
l = opt.linestyle;
c = opt.color;
m = opt.marker;
msg = [];
switch (c)
case [0 0 0]
c = "k";
case [1 0 0]
c = "r";
case [0 1 0]
c = "g";
case [0 0 1]
c = "b";
case [1 1 0]
c = "y";
case [1 0 1]
c = "m";
case [0 1 1]
c = "c";
case [0 1 1]
c = "w";
endswitch
catch
l = c = m = [];
msg = lasterr ();
end_try_catch
endfunction
%!test
%! [l, c, m, msg] = colstyle ("r:x");
%! assert (isempty (msg));
%! assert (l, ":");
%! assert (c, "r");
%! assert (m, "x");
%!test
%! [l, c, m, msg] = colstyle (".");
%! assert (isempty (msg));
%! assert (l, "none");
%! assert (c, []);
%! assert (m, ".");
%!test
%! [l, c, m, msg] = colstyle ("~");
%! assert (msg, "colstyle: unrecognized format character: '~'");
%% Test input validation
%!error colstyle ()
%!error colstyle (1, 2)
%!error colstyle (1.5)
|
