1 ## Copyright (C) 2004-2012 Paul Kienzle
3 ## This file is part of Octave.
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.
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.
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/>.
20 ## @deftypefn {Function File} {@var{c} =} calendar ()
21 ## @deftypefnx {Function File} {@var{c} =} calendar (@var{d})
22 ## @deftypefnx {Function File} {@var{c} =} calendar (@var{y}, @var{m})
23 ## @deftypefnx {Function File} {} calendar (@dots{})
24 ## Return the current monthly calendar in a 6x7 matrix.
26 ## If @var{d} is specified, return the calendar for the month containing
27 ## the date @var{d}, which must be a serial date number or a date string.
29 ## If @var{y} and @var{m} are specified, return the calendar for year @var{y}
32 ## If no output arguments are specified, print the calendar on the screen
33 ## instead of returning a matrix.
34 ## @seealso{datenum, datestr}
37 ## Author: pkienzle <pkienzle@users.sf.net>
38 ## Created: 25 July 2004
39 ## Adapted-By: William Poetra Yoga Hadisoeseno <williampoetra@gmail.com>
41 function varargout = calendar (varargin)
50 v = datevec (varargin{1});
63 dayone = datenum (y, m, 1);
64 ndays = eomday (y, m);
65 c(weekday (dayone) - 1 + [1:ndays]) = 1:ndays;
70 ## Layout the calendar days, 6 columns per day, 7 days per row.
71 str = sprintf (" %2d %2d %2d %2d %2d %2d %2d\n", c);
73 ## Print an asterisk before the specified date
75 pos = weekday (dayone) + d - 1;
76 idx = 6*pos + fix (pos / 7.1) - ifelse (d < 10, 1, 2);
80 ## Display the calendar.
83 puts (strftime (" %b %Y\n", s));
84 puts (" S M Tu W Th F S\n");
93 %! ## Calendar for current month
96 %! calendar (1957, 10)
99 %!assert ((calendar(2000,2))'(2:31), [0:29])
100 %!assert ((calendar(1957,10))'(2:33), [0:31])
102 %% Test input validation
103 %!error calendar (1,2,3)