Mercurial > octave
view scripts/strings/rindex.m @ 25054:6652d3823428 stable
maint: Update copyright dates in all source files.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 30 Mar 2018 09:19:05 -0400 |
parents | 194eb4bd202b |
children | 00f796120a6d |
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## Copyright (C) 1996-2018 Kurt Hornik ## ## 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 {} {} rindex (@var{s}, @var{t}) ## Return the position of the last occurrence of the character string ## @var{t} in the character string @var{s}, or 0 if no occurrence is ## found. ## ## @var{s} may also be a string array or cell array of strings. ## ## For example: ## ## @example ## @group ## rindex ("Teststring", "t") ## @result{} 6 ## @end group ## @end example ## ## The @code{rindex} function is equivalent to @code{index} with ## @var{direction} set to @qcode{"last"}. ## ## @seealso{find, index} ## @end deftypefn ## Author: Kurt Hornik <Kurt.Hornik@wu-wien.ac.at> ## Adapted-By: jwe ## This is patterned after the AWK function of the same name. function n = rindex (s, t) if (nargin != 2) print_usage (); endif n = index (s, t, "last"); endfunction %!assert (rindex ("foobarbaz", "b"), 7) %!assert (rindex ("foobarbaz", "o"), 3) %!test %! str = char ("Hello", "World", "Goodbye", "World"); %! assert (rindex (str, "o"), [5; 2; 3; 2]); %! str = cellstr (str); %! assert (rindex (str, "o"), [5; 2; 3; 2]); ## Test input validation %!error rindex () %!error rindex ("foo") %!error rindex ("foo", "bar", "last")