Mercurial > hg > octave-lyh
annotate scripts/strings/blanks.m @ 17535:c12c688a35ed default tip lyh
Fix warnings
| author | LYH <lyh.kernel@gmail.com> |
|---|---|
| date | Fri, 27 Sep 2013 17:43:27 +0800 |
| parents | cbcaf5602469 |
| children |
| rev | line source |
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maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 1996-2012 Kurt Hornik |
| 2325 | 2 ## |
| 2313 | 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 | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## your option) any later version. | |
| 2313 | 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 | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 2268 | 18 |
| 3361 | 19 ## -*- texinfo -*- |
| 20 ## @deftypefn {Function File} {} blanks (@var{n}) | |
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21 ## Return a string of @var{n} blanks, for example: |
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22 ## |
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23 ## @example |
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24 ## @group |
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Rik <octave@nomad.inbox5.com>
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25 ## blanks (10); |
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26 ## whos ans |
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27 ## @result{} |
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28 ## Attr Name Size Bytes Class |
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29 ## ==== ==== ==== ===== ===== |
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30 ## ans 1x10 10 char |
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Thorsten Meyer <thorsten.meyier@gmx.de>
parents:
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31 ## @end group |
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32 ## @end example |
| 6138 | 33 ## @seealso{repmat} |
| 3361 | 34 ## @end deftypefn |
| 2311 | 35 |
| 5428 | 36 ## Author: Kurt Hornik <Kurt.Hornik@wu-wien.ac.at> |
| 2355 | 37 ## Adapted-By: jwe |
| 2314 | 38 |
| 2268 | 39 function s = blanks (n) |
| 2325 | 40 |
| 2268 | 41 if (nargin != 1) |
| 6046 | 42 print_usage (); |
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Rik <octave@nomad.inbox5.com>
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43 elseif (! (isscalar (n) && n == fix (n) && n >= 0)) |
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Rik <octave@nomad.inbox5.com>
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44 error ("blanks: N must be a non-negative integer"); |
| 2268 | 45 endif |
| 2325 | 46 |
| 6387 | 47 ## If 1:n is empty, the following expression will create an empty |
| 48 ## character string. Otherwise, it will create a row vector. | |
| 49 s(1:n) = " "; | |
| 6138 | 50 |
| 2268 | 51 endfunction |
| 6138 | 52 |
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53 |
| 6138 | 54 ## There really isn't that much to test here |
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Rik <octave@nomad.inbox5.com>
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55 %!assert (blanks (0), "") |
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56 %!assert (blanks (5), " ") |
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57 %!assert (blanks (10), " ") |
| 7411 | 58 |
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Rik <octave@nomad.inbox5.com>
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59 %% Test input validation |
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60 %!error blanks () |
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61 %!error blanks (1, 2) |
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62 %!error blanks (ones (2)) |
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63 %!error blanks (2.1) |
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64 %!error blanks (-2) |
| 7411 | 65 |