Mercurial > octave-nkf
view scripts/miscellaneous/fullfile.m @ 20654:b65888ec820e draft default tip gccjit
dmalcom gcc jit import
author | Stefan Mahr <dac922@gmx.de> |
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date | Fri, 27 Feb 2015 16:59:36 +0100 |
parents | 8b1884214798 |
children |
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## Copyright (C) 2014-2015 Carnë Draug ## ## 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} {@var{filename} =} fullfile (@var{dir1}, @var{dir2}, @dots{}, @var{file}) ## @deftypefnx {Function File} {@var{filenames} =} fullfile (@dots{}, @var{files}) ## Build complete filename from separate parts. ## ## Joins any number of path components intelligently. The return value is ## the concatenation of each component with exactly one file separator ## between each non empty part and at most one leading and/or trailing file ## separator. ## ## If the last component part is a cell array, returns a cell array of ## filepaths, one for each element in the last component, e.g.: ## ## @example ## @group ## fullfile ("/home/username", "data", @{"f1.csv", "f2.csv", "f3.csv"@}) ## @result{} /home/username/data/f1.csv ## /home/username/data/f2.csv ## /home/username/data/f3.csv ## @end group ## @end example ## ## On Windows systems, while forward slash file separators do work, they are ## replaced by backslashes; in addition drive letters are stripped of leading ## file separators to obtain a valid file path. ## ## Note: @code{fullfile} does not perform any validation of the resulting full ## filename. ## @seealso{fileparts, filesep} ## @end deftypefn ## Author: Carnë Draug <carandraug@octave.org> function filename = fullfile (varargin) if (nargin && iscell (varargin{end})) filename = cellfun (@(x) fullfile (varargin{1:end-1}, x), varargin{end}, "UniformOutput", false); else non_empty = cellfun ("isempty", varargin); unc = 0; if (ispc && ! isempty (varargin)) varargin = strrep (varargin, '/', filesep); unc = strncmp (varargin{1}, '\\', 2); varargin(1) = regexprep (varargin{1}, '[\\/]*([a-zA-Z]:[\\/]*)', "$1"); endif filename = strjoin (varargin(! non_empty), filesep); filename(unc + strfind (filename(1+unc : end), [filesep filesep])) = ""; endif endfunction %!shared fs, fsx, xfs, fsxfs, xfsy, xfsyfs %! fs = filesep (); %! fsx = [fs "x"]; %! xfs = ["x" fs]; %! fsxfs = [fs "x" fs]; %! xfsy = ["x" fs "y"]; %! xfsyfs = ["x" fs "y" fs]; %!assert (fullfile (""), "") %!assert (fullfile (fs), fs) %!assert (fullfile ("", fs), fs) %!assert (fullfile (fs, ""), fs) %!assert (fullfile ("", fs), fs) %!assert (fullfile ("x"), "x") %!assert (fullfile ("", "x"), "x") %!assert (fullfile ("x", ""), "x") %!assert (fullfile ("", "x", ""), "x") %!assert (fullfile ("x", "y"), xfsy) %!assert (fullfile ("x", "", "y"), xfsy) %!assert (fullfile ("x", "", "y", ""), xfsy) %!assert (fullfile ("", "x", "", "y", ""), xfsy) %!assert (fullfile (fs), fs) %!assert (fullfile (fs, "x"), fsx) %!assert (fullfile (fs, xfs), fsxfs) %!assert (fullfile (fsx, fs), fsxfs) %!assert (fullfile (fs, "x", fs), fsxfs) %!assert (fullfile ("x/", "/", "/", "y", "/", "/"), xfsyfs) %!assert (fullfile ("/", "x/", "/", "/", "y", "/", "/"), [fs xfsyfs]) %!assert (fullfile ("/x/", "/", "/", "y", "/", "/"), [fs xfsyfs]) ## different on purpose so that "fullfile (c{:})" works for empty c %!assert (fullfile (), "") %!assert (fullfile ("x", "y", {"c", "d"}), {[xfsyfs "c"], [xfsyfs "d"]}) ## Windows specific - drive letters and file sep type %!test %! if (ispc) %! assert (fullfile ('\/\/\//A:/\/\', "x/", "/", "/", "y", "/", "/"), ... %! ['A:\' xfsyfs]); %! endif ## *nix specific - double backslash %!test %! if (isunix || ismac) %! assert (fullfile (fs, fs), fs) %! endif ## Windows specific - drive letters and file sep type, cell array %!test %! if (ispc) %! tmp = fullfile ({"\\\/B:\//", "A://c", "\\\C:/g/h/i/j\/"}); %! assert (tmp{1}, 'B:\'); %! assert (tmp{2}, 'A:\c'); %! assert (tmp{3}, 'C:\g\h\i\j\'); %! endif