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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, 59 Temple Place - Suite 330, Boston, MA |
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18 ## 02111-1307, 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 ## Removes the trailing blanks and nulls from the string @var{s}. |
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23 ## If @var{s} is a matrix, @var{deblank} trims each row to the |
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24 ## length of longest string. |
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25 ## @end deftypefn |
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26 |
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27 ## Author: Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at> |
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28 ## Adapted-By: jwe |
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29 |
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30 function t = deblank (s) |
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31 |
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32 if (nargin != 1) |
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33 usage ("deblank (s)"); |
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34 endif |
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35 |
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36 if (isstr (s)) |
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37 |
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38 k = find (s != " " & s != "\0"); |
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39 if (isempty (s) || isempty (k)) |
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40 t = ""; |
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41 else |
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42 t = s(:,1:ceil (max (k) / rows (s))); |
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43 endif |
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44 |
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45 else |
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46 error ("deblank: expecting string argument"); |
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47 endif |
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48 |
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49 endfunction |
