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annotate scripts/strings/deblank.m @ 6046:34f96dd5441b

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[project @ 2006-10-10 16:10:25 by jwe]
author jwe
date Tue, 10 Oct 2006 16:10:31 +0000
parents 75a828280d68
children 93c65f2a5668
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ## Copyright (C) 1996 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 2, or (at your option)
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8 ## 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, write to the Free
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17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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18 ## 02110-1301, USA.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} deblank (@var{s})
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22 ## Remove trailing blanks and nulls from @var{s}. If @var{s}
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23 ## is a matrix, @var{deblank} trims each row to the length of longest
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24 ## string. If @var{s} is a cell array, operate recursively on each
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25 ## element of the cell array.
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26 ## @end deftypefn
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27
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28 ## Author: Kurt Hornik <Kurt.Hornik@wu-wien.ac.at>
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29 ## Adapted-By: jwe
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31 function s = deblank (s)
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33 if (nargin != 1)
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34 print_usage ();
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35 endif
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36
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37 if (ischar (s))
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38
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39 k = find (! isspace (s) & s != "\0");
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40 if (isempty (s) || isempty (k))
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41 s = "";
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42 else
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43 s = s(:,1:ceil (max (k) / rows (s)));
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44 endif
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45
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46 elseif (iscell(s))
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47
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48 s = cellfun (@deblank, s, "UniformOutput", false);
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50 else
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51 error ("deblank: expecting string argument");
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52 endif
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53
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54 endfunction