Mercurial > octave
view scripts/strings/isletter.m @ 31060:7201d9b7cea6 stable
NEWS.7.md: Fix typo and formatting.
author | Markus Mützel <markus.muetzel@gmx.de> |
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date | Thu, 02 Jun 2022 19:52:08 +0200 |
parents | 796f54d4ddbf |
children | 83f9f8bda883 |
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######################################################################## ## ## Copyright (C) 1998-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## This file is part of Octave. ## ## Octave is free software: you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation, either version 3 of the License, or ## (at your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} isletter (@var{s}) ## Return a logical array which is true where the elements of @var{s} ## are letters and false where they are not. ## ## This is an alias for the @code{isalpha} function. ## @seealso{isalpha, isdigit, ispunct, isspace, iscntrl, isalnum} ## @end deftypefn function retval = isletter (s) if (nargin < 1) print_usage (); endif retval = isalpha (s); endfunction %!error <Invalid call> isletter () %!error isletter ("a", "b")