Mercurial > hg > octave-nkf
annotate scripts/deprecated/usage.m @ 19794:db92e7e28e1f
strip trailing whitespace from most source files
* NEWS, doc/interpreter/contributors.in, doc/interpreter/func.txi,
doc/interpreter/genpropdoc.m, doc/interpreter/octave_logo.eps,
doc/interpreter/plot.txi, doc/interpreter/stmt.txi,
examples/data/Makefile.am, libinterp/corefcn/data.cc,
libinterp/corefcn/debug.cc, libinterp/corefcn/error.cc,
libinterp/corefcn/file-io.cc, libinterp/corefcn/gl-render.cc,
libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h,
libinterp/corefcn/load-path.cc, libinterp/corefcn/pr-output.cc,
libinterp/corefcn/pt-jit.cc, libinterp/corefcn/strfind.cc,
libinterp/corefcn/toplev.cc, libinterp/corefcn/toplev.h,
libinterp/corefcn/urlwrite.cc, libinterp/corefcn/variables.cc,
libinterp/octave-value/ov-classdef.cc,
libinterp/octave-value/ov-classdef.h, libinterp/octave.cc,
libinterp/parse-tree/lex.h, libinterp/parse-tree/oct-parse.in.yy,
libinterp/parse-tree/pt-classdef.h, liboctave/system/file-ops.cc,
liboctave/system/oct-env.cc, m4/acinclude.m4,
scripts/deprecated/finite.m, scripts/deprecated/fmod.m,
scripts/deprecated/fnmatch.m, scripts/deprecated/luinc.m,
scripts/deprecated/octave_tmp_file_name.m, scripts/deprecated/syl.m,
scripts/deprecated/usage.m, scripts/general/inputParser.m,
scripts/general/interp1.m, scripts/general/interp2.m,
scripts/general/interp3.m, scripts/general/isequal.m,
scripts/general/private/__isequal__.m, scripts/geometry/voronoi.m,
scripts/image/image.m, scripts/image/imshow.m,
scripts/image/ind2rgb.m, scripts/linear-algebra/bandwidth.m,
scripts/linear-algebra/isbanded.m, scripts/miscellaneous/bzip2.m,
scripts/miscellaneous/cast.m, scripts/miscellaneous/copyfile.m,
scripts/miscellaneous/delete.m, scripts/miscellaneous/fullfile.m,
scripts/miscellaneous/getappdata.m, scripts/miscellaneous/gunzip.m,
scripts/miscellaneous/isappdata.m, scripts/miscellaneous/ls.m,
scripts/miscellaneous/mex.m, scripts/miscellaneous/movefile.m,
scripts/miscellaneous/orderfields.m, scripts/miscellaneous/recycle.m,
scripts/miscellaneous/rmappdata.m, scripts/miscellaneous/setfield.m,
scripts/miscellaneous/symvar.m, scripts/miscellaneous/tar.m,
scripts/miscellaneous/tmpnam.m, scripts/miscellaneous/unpack.m,
scripts/miscellaneous/ver.m, scripts/miscellaneous/what.m,
scripts/miscellaneous/xor.m, scripts/miscellaneous/zip.m,
scripts/optimization/fminbnd.m, scripts/optimization/sqp.m,
scripts/path/private/getsavepath.m, scripts/path/savepath.m,
scripts/pkg/pkg.m, scripts/pkg/private/installed_packages.m,
scripts/plot/draw/plotyy.m, scripts/plot/draw/polar.m,
scripts/plot/draw/private/__quiver__.m,
scripts/plot/draw/private/__scatter__.m,
scripts/plot/draw/private/__stem__.m, scripts/plot/draw/surface.m,
scripts/plot/draw/surfnorm.m, scripts/plot/util/copyobj.m,
scripts/plot/util/hgload.m, scripts/plot/util/hgsave.m,
scripts/plot/util/isprop.m, scripts/plot/util/linkprop.m,
scripts/plot/util/private/__go_draw_axes__.m, scripts/set/setdiff.m,
scripts/set/union.m, scripts/signal/periodogram.m,
scripts/sparse/eigs.m, scripts/sparse/ilu.m, scripts/sparse/qmr.m,
scripts/sparse/sprand.m, scripts/sparse/sprandn.m,
scripts/specfun/beta.m, scripts/specfun/ellipke.m,
scripts/specfun/isprime.m, scripts/statistics/base/lscov.m,
scripts/testfun/__run_test_suite__.m, scripts/testfun/test.m:
Strip trailing whitespace.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 20 Jan 2015 10:29:54 -0500 |
parents | d4a920d28242 |
children | ebd27d8c63fd |
rev | line source |
---|---|
19303 | 1 ## Copyright (C) 2014 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 {Built-in Function} {} usage (@var{msg}) | |
21 ## | |
22 ## @code{usage} is deprecated and will be removed in Octave version 4.6. | |
23 ## Please use @code{print_usage} in all new code. | |
24 ## | |
25 ## Print the message @var{msg}, prefixed by the string @samp{usage: }, and | |
26 ## set Octave's internal error state such that control will return to the | |
27 ## top level without evaluating any more commands. This is useful for | |
28 ## aborting from functions. | |
19794
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19303
diff
changeset
|
29 ## |
19303 | 30 ## After @code{usage} is evaluated, Octave will print a traceback of all |
31 ## the function calls leading to the usage message. | |
19794
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19303
diff
changeset
|
32 ## |
19303 | 33 ## You should use this function for reporting problems errors that result |
34 ## from an improper call to a function, such as calling a function with an | |
35 ## incorrect number of arguments, or with arguments of the wrong type. For | |
36 ## example, most functions distributed with Octave begin with code like | |
37 ## this | |
19794
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19303
diff
changeset
|
38 ## |
19303 | 39 ## @example |
40 ## @group | |
41 ## if (nargin != 2) | |
42 ## usage (\"foo (a, b)\"); | |
43 ## endif | |
44 ## @end group | |
45 ## @end example | |
19794
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19303
diff
changeset
|
46 ## |
19303 | 47 ## @noindent |
48 ## to check for the proper number of arguments. | |
49 ## @seealso{print_usage} | |
50 ## @end deftypefn | |
51 | |
52 ## Deprecated in version 4.2 | |
53 | |
54 function retval = usage (varargin) | |
55 | |
56 persistent warned = false; | |
57 if (! warned) | |
58 warned = true; | |
59 warning ("Octave:deprecated-function", | |
60 "usage is obsolete and will be removed from a future version of Octave, please use print_usage instead"); | |
61 endif | |
62 | |
63 retval = __usage__ (varargin{:}); | |
64 | |
65 endfunction | |
66 |