Mercurial > hg > octave-nkf
annotate scripts/strings/strtrim.m @ 20511:eca5aa3225f4
imshow.m: Add support for 'parent' property (bug #45473).
* imshow.m: Add cell variable prop_val_args{:} when calling image or imagesc.
Populate prop_val_args with {"parent", hparent} when "parent" argument given
to imshow. Remove code commented out in 2015/05/1 which has not caused any
problems. Add warning that arguments "border" and "reduce" are not supported.
author | Rik <rik@octave.org> |
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date | Sun, 05 Jul 2015 13:55:56 -0700 |
parents | df437a52bcaf |
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1 ## Copyright (C) 1996-2015 Kurt Hornik |
6975 | 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 | |
7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
8 ## your option) any later version. | |
6975 | 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/>. | |
6975 | 18 |
7346 | 19 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {} strtrim (@var{s}) |
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21 ## Remove leading and trailing whitespace from @var{s}. |
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22 ## |
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23 ## If @var{s} is a matrix, @var{strtrim} trims each row to the length of |
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24 ## longest string. If @var{s} is a cell array of strings, operate recursively |
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25 ## on each string element. |
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26 ## |
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27 ## For example: |
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28 ## |
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29 ## @example |
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30 ## @group |
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31 ## strtrim (" abc ") |
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32 ## @result{} "abc" |
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33 ## |
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34 ## strtrim ([" abc "; " def "]) |
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35 ## @result{} ["abc " ; " def"] |
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36 ## @end group |
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37 ## @end example |
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38 ## @seealso{deblank} |
7346 | 39 ## @end deftypefn |
6975 | 40 |
41 ## Author: John Swensen <jpswensen@jhu.edu> | |
42 | |
43 ## This function was derived from deblank. | |
44 | |
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45 function s = strtrim (s) |
6975 | 46 |
47 if (nargin != 1) | |
48 print_usage (); | |
49 endif | |
50 | |
51 if (ischar (s)) | |
52 | |
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53 k = find (! isspace (s)); |
6975 | 54 if (isempty (s) || isempty (k)) |
55 s = ""; | |
56 else | |
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57 s = s(:, ceil (min (k) / rows (s)):ceil (max (k) / rows (s))); |
6975 | 58 endif |
59 | |
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60 elseif (iscell (s)) |
6975 | 61 |
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62 char_idx = cellfun ("isclass", s, "char"); |
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63 cell_idx = cellfun ("isclass", s, "cell"); |
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64 if (! all (char_idx | cell_idx)) |
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65 error ("strtrim: S argument must be a string or cellstring"); |
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66 endif |
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67 |
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68 ## Divide work load. Recursive cellfun strtrim call is slow |
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69 ## and avoided where possible. |
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70 s(char_idx) = regexprep (s(char_idx), "^[\\s\v]+|[\\s\v]+$", ''); |
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71 s(cell_idx) = cellfun ("strtrim", s(cell_idx), "UniformOutput", false); |
6975 | 72 |
73 else | |
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74 error ("strtrim: S argument must be a string or cellstring"); |
6975 | 75 endif |
76 | |
77 endfunction | |
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78 |
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79 |
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80 %!assert (strtrim (" abc "), "abc") |
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81 %!assert (strtrim (" "), "") |
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82 %!assert (strtrim ("abc"), "abc") |
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83 %!assert (strtrim ([" abc "; " def "]), ["abc "; " def"]) |
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84 %!assert (strtrim ({" abc "; " def "}), {"abc"; "def"}) |
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85 %!assert (strtrim ({" abc ", {" def "}}), {"abc", {"def"}}) |
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86 |
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87 %!error <Invalid call to strtrim> strtrim () |
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88 %!error <Invalid call to strtrim> strtrim ("abc", "def") |
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89 %!error <argument must be a string> strtrim (1) |
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90 %!error <argument must be a string> strtrim ({[]}) |
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91 |