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annotate scripts/strings/isletter.m @ 14214:2fe0f5fa8cc3

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Replace to-be-deprecated findstr occurrences with strfind. * help.m, textread.m, textscan.m, pkg.m, legend.m, __ezplot__.m, __go_draw_axes__.m, rundemos.m: Replace to-be-deprecated findstr occurrences with strfind.
author Rik <octave@nomad.inbox5.com>
date Wed, 18 Jan 2012 21:15:42 -0800
parents 72c96de7a403
children f3d52523cde1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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72c96de7a403 maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 1998-2012 John W. Eaton
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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 -*-
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20 ## @deftypefn {Function File} {} isletter (@var{s})
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21 ## Return a logical array which is true where the elements of @var{s}
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22 ## are letters and false where they are not. This is an alias for
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23 ## the @code{isalpha} function.
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24 ## @seealso{isalpha, isdigit, ispunct, isspace, iscntrl, isalnum}
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25 ## @end deftypefn
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27 ## Author: jwe
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28
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29 function retval = isletter (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 retval = isalpha (s);
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36
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37 endfunction
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39 %!error isletter();
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40 %!error isletter("a", "b");