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1 ## Copyright (C) 1996, 2007 Kurt Hornik |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 3 of the License, or (at |
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8 ## your option) any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, see |
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17 ## <http://www.gnu.org/licenses/>. |
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18 |
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19 ## -*- texinfo -*- @deftypefn {Function File} {} deblank (@var{s}) |
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20 ## Remove leading and trailing blanks and nulls from @var{s}. If |
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21 ## @var{s} is a matrix, @var{deblank} trims each row to the length of |
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22 ## longest string. If @var{s} is a cell array, operate recursively on |
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23 ## each element of the cell array. @end deftypefn |
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24 |
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25 ## Author: John Swensen <jpswensen@jhu.edu> |
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26 |
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27 ## This function was derived from deblank. |
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28 |
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29 function s = strtrim (s) |
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30 |
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31 if (nargin != 1) |
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32 print_usage (); |
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33 endif |
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34 |
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35 if (ischar (s)) |
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36 |
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37 k = find (! isspace (s) & s != "\0"); |
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38 if (isempty (s) || isempty (k)) |
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39 s = ""; |
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40 else |
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41 s = s(:,ceil (min (k) / rows (s)):ceil (max (k) / rows (s))); |
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42 endif |
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43 |
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44 elseif (iscell(s)) |
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45 |
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46 s = cellfun (@strtrim, s, "UniformOutput", false); |
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47 |
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48 else |
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49 error ("strtrim: expecting string argument"); |
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50 endif |
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51 |
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52 endfunction |
