Mercurial > octave
view scripts/strings/deblank.m @ 30564:796f54d4ddbf stable
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2021.
In all .txi and .texi files except gpl.txi and gpl.texi in the
doc/liboctave and doc/interpreter directories, change the copyright
to "Octave Project Developers", the same as used for other source
files. Update copyright notices for 2022 (not done since 2019). For
gpl.txi and gpl.texi, change the copyright notice to be "Free Software
Foundation, Inc." and leave the date at 2007 only because this file
only contains the text of the GPL, not anything created by the Octave
Project Developers.
Add Paul Thomas to contributors.in.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 28 Dec 2021 18:22:40 -0500 |
parents | 7854d5752dd2 |
children | 5d3faba0342e |
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######################################################################## ## ## Copyright (C) 1996-2022 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 {} {} deblank (@var{s}) ## Remove trailing whitespace and nulls from @var{s}. ## ## If @var{s} is a matrix, @var{deblank} trims each row to the length of ## longest string. If @var{s} is a cell array of strings, operate ## recursively on each string element. ## ## Examples: ## ## @example ## @group ## deblank (" abc ") ## @result{} " abc" ## ## deblank ([" abc "; " def "]) ## @result{} [" abc " ; " def"] ## @end group ## @end example ## @seealso{strtrim} ## @end deftypefn function s = deblank (s) if (nargin < 1) print_usage (); endif if (isempty (s)) ## Return empty objects unchanged (Matlab compatibility) elseif (ischar (s)) ## Find indices of non-whitespace characters. If s is a ## char matrix, the indices are in column major order. k = find (! isspace (s) & s != "\0"); if (isempty (k)) ## Even if s was a char matrix! (Matlab compatibility) s = ""; else s = s(:,1:ceil (max (k) / rows (s))); endif elseif (iscell (s)) char_idx = cellfun ("isclass", s, "char"); cell_idx = cellfun ("isclass", s, "cell"); empty_idx = cellfun ("isempty", s); if (! all (char_idx | cell_idx | empty_idx)) error ("deblank: S argument must be a string or cellstring"); endif ## Divide work load. Recursive cellfun deblank call is slow ## and avoided where possible. s(char_idx) = regexprep (s(char_idx), "[\\s\v\\0]+$", ''); s(cell_idx) = cellfun ("deblank", s(cell_idx), "UniformOutput", false); else error ("deblank: S argument must be a string or cellstring"); endif endfunction %!assert (deblank (" f o o \0"), " f o o") %!assert (deblank (" \t f o o \t \0"), " \t f o o") %!assert (deblank (char (" abc ", " def ")), [" abc " ; " def"]) %!assert (deblank ([" "; " "]), "") %!assert (deblank (' '), '') %!assert (deblank (" "), "") %!assert (deblank (""), "") %!assert (deblank ([]), []) %!assert (deblank ({}), {}) %!assert (deblank ({[]}), {[]}) %!assert (deblank ({[], []}), {[], []}) %!assert (deblank ({" abc ", {" def "}}), {" abc", {" def"}}) %!error <Invalid call to deblank> deblank () %!error <called with too many inputs> deblank ("foo", "bar") %!error <argument must be a string> deblank (1)