Mercurial > hg > octave-lyh
view scripts/strings/rindex.m @ 14200:64d9f33313cc stable rc-3-6-0-1
3.6.0-rc1 release candidate
* configure.ac (AC_INIT): Version is now 3.6.0-rc1.
(OCTAVE_RELEASE_DATE): Now 2012-01-12.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 12 Jan 2012 14:31:50 -0500 |
parents | 72c96de7a403 |
children | f3d52523cde1 |
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## Copyright (C) 1996-2012 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 ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} 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 @samp{"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 && 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")